Merge branch 'master' into fix-docker

.circleci/config.yml

@@ -3,7 +3,7 @@ jobs:
   build:
     docker:
       # Ensure .tool-versions matches
-      - image: circleci/elixir:1.7.2-node-browsers
+      - image: circleci/elixir:1.8.1-node-browsers
         environment:
           MIX_ENV: test
           # match POSTGRES_PASSWORD for postgres image below
@@ -17,6 +17,9 @@ jobs:
       - run: sudo apt-get update; sudo apt-get -y install autoconf build-essential libgmp3-dev libtool
 
       - checkout
+      - run:
+          command: ./bin/install_chrome_headless.sh
+          no_output_timeout: 2400
 
       - run: mix local.hex --force
       - run: mix local.rebar --force
@@ -30,17 +33,17 @@ jobs:
 
       - restore_cache:
           keys:
-             - v6-mix-compile-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}-{{ checksum "mix.lock" }}
+             - v7-mix-compile-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}-{{ checksum "mix.lock" }}
-             - v6-mix-compile-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}-{{ checksum "mix.exs" }}
+             - v7-mix-compile-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}-{{ checksum "mix.exs" }}
-             - v6-mix-compile-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}
+             - v7-mix-compile-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}
 
       - run: mix deps.get
 
       - restore_cache:
           keys:
-            - v6-npm-install-{{ .Branch }}-{{ checksum "apps/block_scout_web/assets/package-lock.json" }}
+            - v7-npm-install-{{ .Branch }}-{{ checksum "apps/block_scout_web/assets/package-lock.json" }}
-            - v6-npm-install-{{ .Branch }}
+            - v7-npm-install-{{ .Branch }}
-            - v6-npm-install
+            - v7-npm-install
 
       - run:
           command: npm install
@@ -61,13 +64,13 @@ jobs:
           working_directory: "apps/block_scout_web/assets"
 
       - save_cache:
-          key: v6-npm-install-{{ .Branch }}-{{ checksum "apps/block_scout_web/assets/package-lock.json" }}
+          key: v7-npm-install-{{ .Branch }}-{{ checksum "apps/block_scout_web/assets/package-lock.json" }}
           paths: "apps/block_scout_web/assets/node_modules"
       - save_cache:
-          key: v6-npm-install-{{ .Branch }}
+          key: v7-npm-install-{{ .Branch }}
           paths: "apps/block_scout_web/assets/node_modules"
       - save_cache:
-          key: v6-npm-install
+          key: v7-npm-install
           paths: "apps/block_scout_web/assets/node_modules"
 
       - run: mix compile
@@ -80,17 +83,17 @@ jobs:
       # `deps` needs to be cached with `_build` because `_build` will symlink into `deps`
 
       - save_cache:
-          key: v6-mix-compile-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}-{{ checksum "mix.lock" }}
+          key: v7-mix-compile-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}-{{ checksum "mix.lock" }}
           paths:
             - deps
             - _build
       - save_cache:
-          key: v6-mix-compile-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}-{{ checksum "mix.exs" }}
+          key: v7-mix-compile-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}-{{ checksum "mix.exs" }}
           paths:
             - deps
             - _build
       - save_cache:
-          key: v6-mix-compile-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}
+          key: v7-mix-compile-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}
           paths:
             - deps
             - _build
@@ -126,7 +129,7 @@ jobs:
   check_formatted:
     docker:
       # Ensure .tool-versions matches
-      - image: circleci/elixir:1.7.2
+      - image: circleci/elixir:1.8.1
         environment:
           MIX_ENV: test
 
@@ -140,7 +143,7 @@ jobs:
   credo:
     docker:
       # Ensure .tool-versions matches
-      - image: circleci/elixir:1.7.2
+      - image: circleci/elixir:1.8.1
         environment:
           MIX_ENV: test
 
@@ -174,7 +177,7 @@ jobs:
   dialyzer:
     docker:
       # Ensure .tool-versions matches
-      - image: circleci/elixir:1.7.2
+      - image: circleci/elixir:1.8.1
         environment:
           MIX_ENV: test
 
@@ -188,9 +191,9 @@ jobs:
 
       - restore_cache:
           keys:
-            - v6-mix-dailyzer-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}-{{ checksum "mix.lock" }}
+            - v7-mix-dialyzer-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}-{{ checksum "mix.lock" }}
-            - v6-mix-dialyzer-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}-{{ checksum "mix.exs" }}
+            - v7-mix-dialyzer-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}-{{ checksum "mix.exs" }}
-            - v6-mix-dialyzer-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}
+            - v7-mix-dialyzer-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}
 
       - run:
           name: Unpack PLT cache
@@ -210,15 +213,15 @@ jobs:
             cp ~/.mix/dialyxir*.plt plts/
 
       - save_cache:
-          key: v6-mix-dialyzer-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}-{{ checksum "mix.lock" }}
+          key: v7-mix-dialyzer-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}-{{ checksum "mix.lock" }}
           paths:
             - plts
       - save_cache:
-          key: v6-mix-dialyzer-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}-{{ checksum "mix.exs" }}
+          key: v7-mix-dialyzer-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}-{{ checksum "mix.exs" }}
           paths:
             - plts
       - save_cache:
-          key: v6-mix-dialyzer-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}
+          key: v7-mix-dialyzer-{{ checksum "OTP_VERSION.lock" }}-{{ checksum "ELIXIR_VERSION.lock" }}
           paths:
             - plts
 
@@ -244,7 +247,7 @@ jobs:
   gettext:
     docker:
       # Ensure .tool-versions matches
-      - image: circleci/elixir:1.7.2
+      - image: circleci/elixir:1.8.1
         environment:
           MIX_ENV: test
 
@@ -283,7 +286,7 @@ jobs:
   release:
     docker:
       # Ensure .tool-versions matches
-      - image: circleci/elixir:1.7.2
+      - image: circleci/elixir:1.8.1
         environment:
           MIX_ENV: prod
 
@@ -309,7 +312,7 @@ jobs:
   sobelow:
     docker:
       # Ensure .tool-versions matches
-      - image: circleci/elixir:1.7.2
+      - image: circleci/elixir:1.8.1
         environment:
           MIX_ENV: test
 
@@ -333,7 +336,7 @@ jobs:
   test_geth_http_websocket:
     docker:
       # Ensure .tool-versions matches
-      - image: circleci/elixir:1.7.2-node-browsers
+      - image: circleci/elixir:1.8.1-node-browsers
         environment:
           MIX_ENV: test
           # match POSTGRES_PASSWORD for postgres image below
@@ -357,6 +360,10 @@ jobs:
       - attach_workspace:
           at: .
 
+      - run:
+          command: ./bin/install_chrome_headless.sh
+          no_output_timeout: 2400
+
       - run: mix local.hex --force
       - run: mix local.rebar --force
 
@@ -383,7 +390,7 @@ jobs:
   test_geth_mox:
     docker:
       # Ensure .tool-versions matches
-      - image: circleci/elixir:1.7.2-node-browsers
+      - image: circleci/elixir:1.8.1-node-browsers
         environment:
           MIX_ENV: test
           # match POSTGRES_PASSWORD for postgres image below
@@ -407,6 +414,10 @@ jobs:
       - attach_workspace:
           at: .
 
+      - run:
+          command: ./bin/install_chrome_headless.sh
+          no_output_timeout: 2400
+
       - run: mix local.hex --force
       - run: mix local.rebar --force
 
@@ -433,7 +444,7 @@ jobs:
   test_parity_http_websocket:
     docker:
       # Ensure .tool-versions matches
-      - image: circleci/elixir:1.7.2-node-browsers
+      - image: circleci/elixir:1.8.1-node-browsers
         environment:
           MIX_ENV: test
           # match POSTGRES_PASSWORD for postgres image below
@@ -457,6 +468,10 @@ jobs:
       - attach_workspace:
           at: .
 
+      - run:
+          command: ./bin/install_chrome_headless.sh
+          no_output_timeout: 2400
+
       - run: mix local.hex --force
       - run: mix local.rebar --force
 
@@ -483,7 +498,7 @@ jobs:
   test_parity_mox:
     docker:
       # Ensure .tool-versions matches
-      - image: circleci/elixir:1.7.2-node-browsers
+      - image: circleci/elixir:1.8.1-node-browsers
         environment:
           MIX_ENV: test
           # match POSTGRES_PASSWORD for postgres image below
@@ -507,6 +522,10 @@ jobs:
       - attach_workspace:
           at: .
 
+      - run:
+          command: ./bin/install_chrome_headless.sh
+          no_output_timeout: 2400
+
       - run: mix local.hex --force
       - run: mix local.rebar --force
 
@@ -533,7 +552,7 @@ jobs:
   coveralls_merge:
     docker:
       # Ensure .tool-versions matches
-      - image: circleci/elixir:1.7.2
+      - image: circleci/elixir:1.8.1
         environment:
           MIX_ENV: test
 
@@ -552,6 +571,9 @@ workflows:
       # This unfortunately will only fire if all the tests pass because of how `requires` works
       - coveralls_merge:
           requires:
+            - test_parity_http_websocket
+            - test_parity_mox
+            - test_geth_http_websocket
             - test_geth_mox
       - credo:
           requires:
@@ -569,7 +591,8 @@ workflows:
             - eslint
             - jest
             - sobelow
-            # This makes these synchronous, instead of asynchronous
+            - test_parity_http_websocket
+            - test_parity_mox
             - test_geth_http_websocket
             - test_geth_mox
       - dialyzer:
@@ -595,13 +618,10 @@ workflows:
             - build
       - test_parity_mox:
           requires:
-            # This makes these synchronous, instead of asynchronous
+            - build
-            - test_parity_http_websocket
       - test_geth_http_websocket:
           requires:
-            # This makes these synchronous, instead of asynchronous
+            - build
-            - test_parity_mox
       - test_geth_mox:
           requires:
-            # This makes these synchronous, instead of asynchronous
+            - build
-            - test_geth_http_websocket

.dialyzer-ignore

@@ -1,3 +1,6 @@
 :0: Unknown function 'Elixir.ExUnit.Callbacks':'__merge__'/3
 :0: Unknown function 'Elixir.ExUnit.CaseTemplate':'__proxy__'/2
 :0: Unknown type 'Elixir.Map':t/0
+apps/ethereum_jsonrpc/lib/ethereum_jsonrpc.ex:400: Function timestamp_to_datetime/1 has no local return
+apps/explorer/lib/explorer/repo/prometheus_logger.ex:8: Function microseconds_time/1 has no local return
+apps/explorer/lib/explorer/repo/prometheus_logger.ex:8: The call 'Elixir.System':convert_time_unit(__@1::any(),'native','microseconds') breaks the contract (integer(),time_unit() | 'native',time_unit() | 'native') -> integer()

.tool-versions

@@ -1,3 +1,3 @@
-elixir 1.7.1
+elixir 1.8.1
 erlang 21.0.4
 nodejs 10.11.0

CHANGELOG.md

@@ -0,0 +1,165 @@
+## Current
+
+### Features
+
+- [#1739](https://github.com/poanetwork/blockscout/pull/1739) - highlight decompiled source code
+- [#1696](https://github.com/poanetwork/blockscout/pull/1696) - full-text search by tokens
+- [#1742](https://github.com/poanetwork/blockscout/pull/1742) - Support RSK
+- [#1777](https://github.com/poanetwork/blockscout/pull/1777) - show ERC-20 token transfer info on transaction page
+- [#1770](https://github.com/poanetwork/blockscout/pull/1770) - set a websocket keepalive from config
+- [#1789](https://github.com/poanetwork/blockscout/pull/1789) - add ERC-721 info to transaction overview page
+
+### Fixes
+
+ - [#1724](https://github.com/poanetwork/blockscout/pull/1724) - Remove internal tx and token balance fetching from realtime fetcher
+ - [#1727](https://github.com/poanetwork/blockscout/pull/1727) - add logs pagination in rpc api
+ - [#1740](https://github.com/poanetwork/blockscout/pull/1740) - fix empty block time
+ - [#1743](https://github.com/poanetwork/blockscout/pull/1743) - sort decompiled smart contracts in lexicographical order
+ - [#1756](https://github.com/poanetwork/blockscout/pull/1756) - add today's token balance from the previous value
+ - [#1769](https://github.com/poanetwork/blockscout/pull/1769) - add timestamp to block overview
+ - [#1768](https://github.com/poanetwork/blockscout/pull/1768) - fix first block parameter
+ - [#1778](https://github.com/poanetwork/blockscout/pull/1778) - Make websocket optional for realtime fetcher
+ - [#1795](https://github.com/poanetwork/blockscout/pull/1795) - fix line numbers for decompiled contracts
+
+### Chore
+
+ - [#1783](https://github.com/poanetwork/blockscout/pull/1783) - Update README with the chains that use Blockscout
+ - [#1780](https://github.com/poanetwork/blockscout/pull/1780) - Update link to the Github repo in the footer
+ - [#1757](https://github.com/poanetwork/blockscout/pull/1757) - Change twitter acc link to official Blockscout acc twitter
+ - [#1749](https://github.com/poanetwork/blockscout/pull/1749) - Replace the link in the footer with the official POA announcements tg channel link
+ - [#1718](https://github.com/poanetwork/blockscout/pull/1718) - Flatten indexer module hierarchy and supervisor tree
+ - [#1753](https://github.com/poanetwork/blockscout/pull/1753) - Add a check mark to decompiled contract tab
+ - [#1744](https://github.com/poanetwork/blockscout/pull/1744) - remove `0x0..0` from tests
+ - [#1763](https://github.com/poanetwork/blockscout/pull/1763) - Describe indexer structure and list existing fetchers
+
+
+## 1.3.9-beta
+
+### Features
+
+ - [#1662](https://github.com/poanetwork/blockscout/pull/1662) - allow specifying number of optimization runs
+ - [#1654](https://github.com/poanetwork/blockscout/pull/1654) - add decompiled code tab
+ - [#1661](https://github.com/poanetwork/blockscout/pull/1661) - try to compile smart contract with the latest evm version
+ - [#1665](https://github.com/poanetwork/blockscout/pull/1665) - Add contract verification RPC endpoint.
+ - [#1706](https://github.com/poanetwork/blockscout/pull/1706) - allow setting update interval for addresses with b
+
+### Fixes
+
+ - [#1669](https://github.com/poanetwork/blockscout/pull/1669) - do not fail if multiple matching tokens are found
+ - [#1691](https://github.com/poanetwork/blockscout/pull/1691) - decrease token metadata update interval
+ - [#1688](https://github.com/poanetwork/blockscout/pull/1688) - do not fail if failure reason is atom
+ - [#1692](https://github.com/poanetwork/blockscout/pull/1692) - exclude decompiled smart contract from encoding
+ - [#1684](https://github.com/poanetwork/blockscout/pull/1684) - Discard child block with parent_hash not matching hash of imported block
+ - [#1699](https://github.com/poanetwork/blockscout/pull/1699) - use seconds as transaction cache period measure
+ - [#1697](https://github.com/poanetwork/blockscout/pull/1697) - fix failing in rpc if balance is empty
+ - [#1711](https://github.com/poanetwork/blockscout/pull/1711) - rescue failing repo in block number cache update
+ - [#1712](https://github.com/poanetwork/blockscout/pull/1712) - do not set contract code from transaction input
+ - [#1714](https://github.com/poanetwork/blockscout/pull/1714) - fix average block time calculation
+
+### Chore
+
+ - [#1693](https://github.com/poanetwork/blockscout/pull/1693) - Add a checklist to the PR template
+
+
+## 1.3.8-beta
+
+### Features
+
+ - [#1611](https://github.com/poanetwork/blockscout/pull/1611) - allow setting the first indexing block
+ - [#1596](https://github.com/poanetwork/blockscout/pull/1596) - add endpoint to create decompiled contracts
+ - [#1634](https://github.com/poanetwork/blockscout/pull/1634) - add transaction count cache
+
+### Fixes
+
+ - [#1630](https://github.com/poanetwork/blockscout/pull/1630) - (Fix) colour for release link in the footer
+ - [#1621](https://github.com/poanetwork/blockscout/pull/1621) - Modify query to fetch failed contract creations
+ - [#1614](https://github.com/poanetwork/blockscout/pull/1614) - Do not fetch burn address token balance
+ - [#1639](https://github.com/poanetwork/blockscout/pull/1614) - Optimize token holder count updates when importing address current balances
+ - [#1643](https://github.com/poanetwork/blockscout/pull/1643) - Set internal_transactions_indexed_at for empty blocks
+ - [#1647](https://github.com/poanetwork/blockscout/pull/1647) - Fix typo in view
+ - [#1650](https://github.com/poanetwork/blockscout/pull/1650) - Add petersburg evm version to smart contract verifier
+ - [#1657](https://github.com/poanetwork/blockscout/pull/1657) - Force consensus loss for parent block if its hash mismatches parent_hash
+
+### Chore
+
+
+## 1.3.7-beta
+
+### Features
+
+### Fixes
+
+ - [#1615](https://github.com/poanetwork/blockscout/pull/1615) - Add more logging to code fixer process
+ - [#1613](https://github.com/poanetwork/blockscout/pull/1613) - Fix USD fee value
+ - [#1577](https://github.com/poanetwork/blockscout/pull/1577) - Add process to fix contract with code
+ - [#1583](https://github.com/poanetwork/blockscout/pull/1583) - Chunk JSON-RPC batches in case connection times out
+
+### Chore
+
+ - [#1610](https://github.com/poanetwork/blockscout/pull/1610) - Add PIRL to Readme
+
+## 1.3.6-beta
+
+### Features
+
+ - [#1589](https://github.com/poanetwork/blockscout/pull/1589) - RPC endpoint to list addresses
+ - [#1567](https://github.com/poanetwork/blockscout/pull/1567) - Allow setting different configuration just for realtime fetcher
+ - [#1562](https://github.com/poanetwork/blockscout/pull/1562) - Add incoming transactions count to contract view
+ - [#1608](https://github.com/poanetwork/blockscout/pull/1608) - Add listcontracts RPC Endpoint
+
+### Fixes
+
+ - [#1595](https://github.com/poanetwork/blockscout/pull/1595) - Reduce block_rewards in the catchup fetcher
+ - [#1590](https://github.com/poanetwork/blockscout/pull/1590) - Added guard for fetching blocks with invalid number
+ - [#1588](https://github.com/poanetwork/blockscout/pull/1588) - Fix usd value on address page
+ - [#1586](https://github.com/poanetwork/blockscout/pull/1586) - Exact timestamp display
+ - [#1581](https://github.com/poanetwork/blockscout/pull/1581) - Consider `creates` param when fetching transactions
+ - [#1559](https://github.com/poanetwork/blockscout/pull/1559) - Change v column type for Transactions table
+
+### Chore
+
+ - [#1579](https://github.com/poanetwork/blockscout/pull/1579) - Add SpringChain to the list of Additional Chains Utilizing BlockScout
+ - [#1578](https://github.com/poanetwork/blockscout/pull/1578) - Refine contributing procedure
+ - [#1572](https://github.com/poanetwork/blockscout/pull/1572) - Add option to disable block rewards in indexer config
+
+
+## 1.3.5-beta
+
+### Features
+
+ - [#1560](https://github.com/poanetwork/blockscout/pull/1560) - Allow executing smart contract functions in arbitrarily sized batches
+ - [#1543](https://github.com/poanetwork/blockscout/pull/1543) - Use trace_replayBlockTransactions API for faster tracing
+ - [#1558](https://github.com/poanetwork/blockscout/pull/1558) - Allow searching by token symbol
+ - [#1551](https://github.com/poanetwork/blockscout/pull/1551) Exact date and time for Transaction details page
+ - [#1547](https://github.com/poanetwork/blockscout/pull/1547) - Verify smart contracts with evm versions
+ - [#1540](https://github.com/poanetwork/blockscout/pull/1540) - Fetch ERC721 token balances if sender is '0x0..0'
+ - [#1539](https://github.com/poanetwork/blockscout/pull/1539) - Add the link to release in the footer
+ - [#1519](https://github.com/poanetwork/blockscout/pull/1519) - Create contract methods
+ - [#1496](https://github.com/poanetwork/blockscout/pull/1496) - Remove dropped/replaced transactions in pending transactions list
+ - [#1492](https://github.com/poanetwork/blockscout/pull/1492) - Disable usd value for an empty exchange rate
+ - [#1466](https://github.com/poanetwork/blockscout/pull/1466) - Decoding candidates for unverified contracts
+
+### Fixes
+ - [#1545](https://github.com/poanetwork/blockscout/pull/1545) - Fix scheduling of latest block polling in Realtime Fetcher
+ - [#1554](https://github.com/poanetwork/blockscout/pull/1554) - Encode integer parameters when calling smart contract functions
+ - [#1537](https://github.com/poanetwork/blockscout/pull/1537) - Fix test that depended on date
+ - [#1534](https://github.com/poanetwork/blockscout/pull/1534) - Render a nicer error when creator cannot be determined
+ - [#1527](https://github.com/poanetwork/blockscout/pull/1527) - Add index to value_fetched_at
+ - [#1518](https://github.com/poanetwork/blockscout/pull/1518) - Select only distinct failed transactions
+ - [#1516](https://github.com/poanetwork/blockscout/pull/1516) - Fix coin balance params reducer for pending transaction
+ - [#1511](https://github.com/poanetwork/blockscout/pull/1511) - Set correct log level for production
+ - [#1510](https://github.com/poanetwork/blockscout/pull/1510) - Fix test that fails every 1st day of the month
+ - [#1509](https://github.com/poanetwork/blockscout/pull/1509) - Add index to blocks' consensus
+ - [#1508](https://github.com/poanetwork/blockscout/pull/1508) - Remove duplicated indexes
+ - [#1505](https://github.com/poanetwork/blockscout/pull/1505) - Use https instead of ssh for absinthe libs
+ - [#1501](https://github.com/poanetwork/blockscout/pull/1501) - Constructor_arguments must be type `text`
+ - [#1498](https://github.com/poanetwork/blockscout/pull/1498) - Add index for created_contract_address_hash in transactions
+ - [#1493](https://github.com/poanetwork/blockscout/pull/1493) - Do not do work in process initialization
+ - [#1487](https://github.com/poanetwork/blockscout/pull/1487) - Limit geth sync to 128 blocks
+ - [#1484](https://github.com/poanetwork/blockscout/pull/1484) - Allow decoding input as utf-8
+ - [#1479](https://github.com/poanetwork/blockscout/pull/1479) - Remove smoothing from coin balance chart
+
+### Chore
+ - [https://github.com/poanetwork/blockscout/pull/1532](https://github.com/poanetwork/blockscout/pull/1532) - Upgrade elixir to 1.8.1
+ - [https://github.com/poanetwork/blockscout/pull/1553](https://github.com/poanetwork/blockscout/pull/1553) - Dockerfile: remove 1.7.1 version pin FROM bitwalker/alpine-elixir-phoenix
+ - [https://github.com/poanetwork/blockscout/pull/1465](https://github.com/poanetwork/blockscout/pull/1465) - Resolve lodash security alert

CONTRIBUTING.md

@@ -6,6 +6,7 @@
 4. Commit your changes (`git commit -am 'Add some feature'`)
 5. Push to the branch (`git push origin my-new-feature`)
 6. Create a new Pull Request
+7. Update CHANGELOG.md with the link to PR and description of the changes
 
 ### General
 

PULL_REQUEST_TEMPLATE.md

@@ -18,3 +18,20 @@
 ## Upgrading
 
 *If you have any Incompatible Changes in the above Changelog, outline how users of prior versions can upgrade once this PR lands or when reviewers are testing locally.  A common upgrading step is "Database reset and re-index required".*
+
+## Checklist for your PR
+
+<!--
+  Ideally a PR has all of the checkmarks set.
+
+  If something in this list is irrelevant to your PR, you should still set this
+  checkmark indicating that you are sure it is dealt with (be that by irrelevance).
+
+  If you don't set a checkmark (e. g. don't add a test for new functionality),
+  you must be able to justify that.
+-->
+
+  - [ ] I added an entry to `CHANGELOG.md` with this PR
+  - [ ] If I added new functionality, I added tests covering it.
+  - [ ] If I fixed a bug, I added a regression test to prevent the bug from silently reappearing again.
+  - [ ] I checked whether I should update the docs and did so if necessary

README.md

@@ -52,6 +52,9 @@ Currently available block explorers (i.e. Etherscan and Etherchain) are closed s
 * [Goerli Testnet](https://blockscout.com/eth/goerli)
 * [Rinkeby Testnet](https://blockscout.com/eth/rinkeby)
 * [Ethereum Classic](https://blockscout.com/etc/mainnet)
+* [Aerum](https://blockscout.com/aerum/mainnet)
+* [Callisto](https://blockscout.com/callisto/mainnet)
+* [RSK](https://blockscout.com/rsk/mainnet)
 
 #### Additional Chains Utilizing BlockScout
 
@@ -59,6 +62,10 @@ Currently available block explorers (i.e. Etherscan and Etherchain) are closed s
 * [Fuse Network](https://explorer.fuse.io/)
 * [ARTIS](https://explorer.sigma1.artis.network)
 * [SafeChain](https://explorer.safechain.io)
+* [SpringChain](https://explorer.springrole.com/)
+* [PIRL](http://pirl.es/)
+* [Petrichor](https://explorer.petrichor-dev.com/)
+
 
 ### Visual Interface
 
@@ -77,7 +84,7 @@ The [development stack page](https://github.com/poanetwork/blockscout/wiki/Devel
 | Dependency  | Mac | Linux |
 |-------------|-----|-------|
 | [Erlang/OTP 21.0.4](https://github.com/erlang/otp) | `brew install erlang` | [Erlang Install Example](https://github.com/poanetwork/blockscout-terraform/blob/33f68e816e36dc2fb055911fa0372531f0e956e7/modules/stack/libexec/init.sh#L134) |
-| [Elixir 1.7.1](https://elixir-lang.org/) | :point_up: | [Elixir Install Example](https://github.com/poanetwork/blockscout-terraform/blob/33f68e816e36dc2fb055911fa0372531f0e956e7/modules/stack/libexec/init.sh#L138) |
+| [Elixir 1.8.1](https://elixir-lang.org/) | :point_up: | [Elixir Install Example](https://github.com/poanetwork/blockscout-terraform/blob/33f68e816e36dc2fb055911fa0372531f0e956e7/modules/stack/libexec/init.sh#L138) |
 | [Postgres 10.3](https://www.postgresql.org/) | `brew install postgresql` | [Postgres Install Example](https://github.com/poanetwork/blockscout-terraform/blob/33f68e816e36dc2fb055911fa0372531f0e956e7/modules/stack/libexec/init.sh#L187) |
 | [Node.js 10.5.0](https://nodejs.org/en/) | `brew install node` | [Node.js Install Example](https://github.com/poanetwork/blockscout-terraform/blob/33f68e816e36dc2fb055911fa0372531f0e956e7/modules/stack/libexec/init.sh#L66) |
 | [Automake](https://www.gnu.org/software/automake/) | `brew install automake` | [Automake Install Example](https://github.com/poanetwork/blockscout-terraform/blob/33f68e816e36dc2fb055911fa0372531f0e956e7/modules/stack/libexec/init.sh#L72) |
@@ -116,7 +123,7 @@ The [development stack page](https://github.com/poanetwork/blockscout/wiki/Devel
   `cd apps/explorer && npm install; cd -`
 
   7. Update your JSON RPC Variant in `apps/explorer/config/dev.exs` and `apps/indexer/config/dev.exs`.
-  For `variant`, enter `ganache`, `geth`, or `parity`
+  For `variant`, enter `ganache`, `geth`, `parity`, or `rsk`
 
   8. Update your JSON RPC Endpoint in `apps/explorer/config/dev/` and `apps/indexer/config/dev/`
   For the `variant` chosen in step 7, enter the correct information for the corresponding JSON RPC Endpoint in `parity.exs`, `geth.exs`, or `ganache.exs`

apps/block_scout_web/assets/css/_code.scss

@@ -6,6 +6,22 @@ pre {
   white-space: pre-wrap;
 }
 
+.pre-decompiled code {
+  white-space: pre-wrap;
+  counter-increment: line;
+}
+
+.pre-decompiled code::before {
+  content: counter(line);
+  display: inline-block;
+  width: flex;
+  border-right: 1px solid #ddd;
+  padding: 0 .5em;
+  margin-right: .5em;
+  color: #888;
+  -webkit-user-select: none;
+}
+
 .pre-scrollable-shorty {
   max-height: $pre-scrollable-max-height / 7;
 }

apps/block_scout_web/assets/js/app.js

@@ -31,6 +31,8 @@ import './pages/pending_transactions'
 import './pages/transaction'
 import './pages/transactions'
 
+import './pages/admin/tasks.js'
+
 import './lib/clipboard_buttons'
 import './lib/currency'
 import './lib/from_now'

apps/block_scout_web/assets/js/lib/from_now.js

@@ -19,7 +19,15 @@ function tryUpdateAge (el) {
   if (timestamp.isValid()) updateAge(el, timestamp)
 }
 function updateAge (el, timestamp) {
-  const fromNow = timestamp.fromNow()
+  let fromNow = timestamp.fromNow()
+  // show the exact time only for transaction details page. Otherwise, short entry
+  const elInTile = el.hasAttribute('in-tile')
+  if ((window.location.pathname.includes('/tx/') || window.location.pathname.includes('/blocks/')) && !elInTile) {
+    const offset = moment().utcOffset() / 60
+    const sign = offset && Math.sign(offset) ? '+' : '-'
+    const formatDate = `MMMM-DD-YYYY hh:mm:ss A ${sign}${offset} UTC`
+    fromNow = `${fromNow} (${timestamp.format(formatDate)})`
+  }
   if (fromNow !== el.innerHTML) el.innerHTML = fromNow
 }
 updateAllAges()

apps/block_scout_web/assets/js/pages/admin/tasks.js

@@ -0,0 +1,26 @@
+import $ from 'jquery'
+
+const runTask = (event) => {
+  const element = event.currentTarget
+  const $element = $(element)
+  const $loading = $element.find('[data-loading-message]')
+  const $errorMessage = $element.find('[data-error-message]')
+  const $successMessage = $element.find('[data-success-message]')
+  const apiPath = element.dataset.api_path
+
+  $errorMessage.hide()
+  $successMessage.hide()
+  $loading.show()
+
+  $.get(apiPath)
+    .done(response => {
+      $successMessage.show()
+      $loading.hide()
+    })
+    .fail(() => {
+      $loading.hide()
+      $errorMessage.show()
+    })
+}
+
+$('#run-create-contract-methods').click(runTask)

apps/block_scout_web/config/config.exs

@@ -9,7 +9,9 @@ use Mix.Config
 config :block_scout_web,
   namespace: BlockScoutWeb,
   ecto_repos: [Explorer.Repo],
-  version: System.get_env("BLOCKSCOUT_VERSION")
+  version: System.get_env("BLOCKSCOUT_VERSION"),
+  release_link: System.get_env("RELEASE_LINK"),
+  decompiled_smart_contract_token: System.get_env("DECOMPILED_SMART_CONTRACT_TOKEN")
 
 config :block_scout_web, BlockScoutWeb.Chain,
   network: System.get_env("NETWORK"),
@@ -66,6 +68,18 @@ config :block_scout_web,
     %{
       title: "Ethereum Classic",
       url: "https://blockscout.com/etc/mainnet"
+    },
+    %{
+      title: "Aerum Mainnet",
+      url: "https://blockscout.com/aerum/mainnet"
+    },
+    %{
+      title: "Callisto Mainnet",
+      url: "https://blockscout.com/callisto/mainnet"
+    },
+    %{
+      title: "RSK Mainnet",
+      url: "https://blockscout.com/rsk/mainnet"
     }
   ]
 
@@ -91,7 +105,7 @@ config :block_scout_web, BlockScoutWeb.Gettext, locales: ~w(en), default_locale:
 
 config :block_scout_web, BlockScoutWeb.SocialMedia,
   twitter: "PoaNetwork",
-  telegram: "oraclesnetwork",
+  telegram: "poa_network",
   facebook: "PoaNetwork",
   instagram: "PoaNetwork"
 

apps/block_scout_web/config/test.exs

@@ -16,7 +16,7 @@ config :logger, :block_scout_web,
   path: Path.absname("logs/test/block_scout_web.log")
 
 # Configure wallaby
-config :wallaby, screenshot_on_failure: true
+config :wallaby, screenshot_on_failure: true, driver: Wallaby.Experimental.Chrome
 
 config :explorer, Explorer.ExchangeRates, enabled: false, store: :none
 

apps/block_scout_web/lib/block_scout_web.ex

@@ -54,6 +54,8 @@ defmodule BlockScoutWeb do
         Views.ScriptHelpers,
         WeiHelpers
       }
+
+      import PhoenixFormAwesomplete
     end
   end
 

apps/block_scout_web/lib/block_scout_web/admin_router.ex

@@ -43,5 +43,9 @@ defmodule BlockScoutWeb.AdminRouter do
     pipe_through([:browser, :check_configured, :ensure_admin])
 
     get("/", DashboardController, :index)
+
+    scope "/tasks" do
+      get("/create_contract_methods", TaskController, :create_contract_methods, as: :create_contract_methods)
+    end
   end
 end

apps/block_scout_web/lib/block_scout_web/chain.ex

@@ -11,7 +11,8 @@ defmodule BlockScoutWeb.Chain do
       number_to_block: 1,
       string_to_address_hash: 1,
       string_to_block_hash: 1,
-      string_to_transaction_hash: 1
+      string_to_transaction_hash: 1,
+      token_contract_address_from_token_name: 1
     ]
 
   alias Explorer.Chain.Block.Reward
@@ -67,10 +68,10 @@ defmodule BlockScoutWeb.Chain do
     end
   end
 
-  def from_param(formatted_number) when is_binary(formatted_number) do
+  def from_param(string) when is_binary(string) do
-    case param_to_block_number(formatted_number) do
+    case param_to_block_number(string) do
       {:ok, number} -> number_to_block(number)
-      {:error, :invalid} -> {:error, :not_found}
+      _ -> token_address_from_name(string)
     end
   end
 
@@ -114,7 +115,7 @@ defmodule BlockScoutWeb.Chain do
     end
   end
 
-  def paging_options(%{"index" => index_string}) do
+  def paging_options(%{"index" => index_string}) when is_binary(index_string) do
     with {index, ""} <- Integer.parse(index_string) do
       [paging_options: %{@default_paging_options | key: {index}}]
     else
@@ -123,6 +124,10 @@ defmodule BlockScoutWeb.Chain do
     end
   end
 
+  def paging_options(%{"index" => index}) when is_integer(index) do
+    [paging_options: %{@default_paging_options | key: {index}}]
+  end
+
   def paging_options(%{"inserted_at" => inserted_at_string, "hash" => hash_string}) do
     with {:ok, inserted_at, _} <- DateTime.from_iso8601(inserted_at_string),
          {:ok, hash} <- string_to_transaction_hash(hash_string) do
@@ -159,6 +164,13 @@ defmodule BlockScoutWeb.Chain do
     end
   end
 
+  defp token_address_from_name(name) do
+    case token_contract_address_from_token_name(name) do
+      {:ok, hash} -> find_or_insert_address_from_hash(hash)
+      _ -> {:error, :not_found}
+    end
+  end
+
   defp paging_params({%Reward{block: %{number: number}}, _}) do
     %{"block_number" => number, "index" => 0}
   end

apps/block_scout_web/lib/block_scout_web/controllers/address_coin_balance_controller.ex

@@ -11,7 +11,7 @@ defmodule BlockScoutWeb.AddressCoinBalanceController do
   alias BlockScoutWeb.AddressCoinBalanceView
   alias Explorer.{Chain, Market}
   alias Explorer.ExchangeRates.Token
-  alias Indexer.CoinBalance.OnDemandFetcher
+  alias Indexer.Fetcher.CoinBalanceOnDemand
   alias Phoenix.View
 
   def index(conn, %{"address_id" => address_hash_string, "type" => "JSON"} = params) do
@@ -62,7 +62,7 @@ defmodule BlockScoutWeb.AddressCoinBalanceController do
          {:ok, address} <- Chain.hash_to_address(address_hash) do
       render(conn, "index.html",
         address: address,
-        coin_balance_status: OnDemandFetcher.trigger_fetch(address),
+        coin_balance_status: CoinBalanceOnDemand.trigger_fetch(address),
         exchange_rate: Market.get_exchange_rate(Explorer.coin()) || Token.null(),
         transaction_count: transaction_count(address),
         validation_count: validation_count(address),

apps/block_scout_web/lib/block_scout_web/controllers/address_contract_controller.ex

@@ -5,7 +5,7 @@ defmodule BlockScoutWeb.AddressContractController do
 
   alias Explorer.{Chain, Market}
   alias Explorer.ExchangeRates.Token
-  alias Indexer.CoinBalance.OnDemandFetcher
+  alias Indexer.Fetcher.CoinBalanceOnDemand
 
   def index(conn, %{"address_id" => address_hash_string}) do
     with {:ok, address_hash} <- Chain.string_to_address_hash(address_hash_string),
@@ -14,7 +14,7 @@ defmodule BlockScoutWeb.AddressContractController do
         conn,
         "index.html",
         address: address,
-        coin_balance_status: OnDemandFetcher.trigger_fetch(address),
+        coin_balance_status: CoinBalanceOnDemand.trigger_fetch(address),
         exchange_rate: Market.get_exchange_rate(Explorer.coin()) || Token.null(),
         transaction_count: transaction_count(address),
         validation_count: validation_count(address)

apps/block_scout_web/lib/block_scout_web/controllers/address_contract_verification_controller.ex

@@ -2,7 +2,7 @@ defmodule BlockScoutWeb.AddressContractVerificationController do
   use BlockScoutWeb, :controller
 
   alias Explorer.Chain.SmartContract
-  alias Explorer.SmartContract.{Publisher, Solidity.CompilerVersion}
+  alias Explorer.SmartContract.{Publisher, Solidity.CodeCompiler, Solidity.CompilerVersion}
 
   def new(conn, %{"address_id" => address_hash_string}) do
     changeset =
@@ -13,7 +13,11 @@ defmodule BlockScoutWeb.AddressContractVerificationController do
 
     {:ok, compiler_versions} = CompilerVersion.fetch_versions()
 
-    render(conn, "new.html", changeset: changeset, compiler_versions: compiler_versions)
+    render(conn, "new.html",
+      changeset: changeset,
+      compiler_versions: compiler_versions,
+      evm_versions: CodeCompiler.allowed_evm_versions()
+    )
   end
 
   def create(
@@ -21,17 +25,35 @@ defmodule BlockScoutWeb.AddressContractVerificationController do
         %{
           "address_id" => address_hash_string,
           "smart_contract" => smart_contract,
-          "external_libraries" => external_libraries
+          "external_libraries" => external_libraries,
+          "evm_version" => evm_version,
+          "optimization" => optimization
         }
       ) do
-    case Publisher.publish(address_hash_string, smart_contract, external_libraries) do
+    smart_sontact_with_evm_version =
+      smart_contract
+      |> Map.put("evm_version", evm_version["evm_version"])
+      |> Map.put("optimization_runs", parse_optimization_runs(optimization))
+
+    case Publisher.publish(address_hash_string, smart_sontact_with_evm_version, external_libraries) do
       {:ok, _smart_contract} ->
         redirect(conn, to: address_contract_path(conn, :index, address_hash_string))
 
       {:error, changeset} ->
         {:ok, compiler_versions} = CompilerVersion.fetch_versions()
 
-        render(conn, "new.html", changeset: changeset, compiler_versions: compiler_versions)
+        render(conn, "new.html",
+          changeset: changeset,
+          compiler_versions: compiler_versions,
+          evm_versions: CodeCompiler.allowed_evm_versions()
+        )
+    end
+  end
+
+  def parse_optimization_runs(%{"runs" => runs}) do
+    case Integer.parse(runs) do
+      {integer, ""} -> integer
+      _ -> 200
     end
   end
 end

apps/block_scout_web/lib/block_scout_web/controllers/address_decompiled_contract_controller.ex

@@ -0,0 +1,30 @@
+defmodule BlockScoutWeb.AddressDecompiledContractController do
+  use BlockScoutWeb, :controller
+
+  import BlockScoutWeb.AddressController, only: [transaction_count: 1, validation_count: 1]
+
+  alias Explorer.{Chain, Market}
+  alias Explorer.ExchangeRates.Token
+  alias Indexer.Fetcher.CoinBalanceOnDemand
+
+  def index(conn, %{"address_id" => address_hash_string}) do
+    with {:ok, address_hash} <- Chain.string_to_address_hash(address_hash_string),
+         {:ok, address} <- Chain.find_decompiled_contract_address(address_hash) do
+      render(
+        conn,
+        "index.html",
+        address: address,
+        coin_balance_status: CoinBalanceOnDemand.trigger_fetch(address),
+        exchange_rate: Market.get_exchange_rate(Explorer.coin()) || Token.null(),
+        transaction_count: transaction_count(address),
+        validation_count: validation_count(address)
+      )
+    else
+      :error ->
+        not_found(conn)
+
+      {:error, :not_found} ->
+        not_found(conn)
+    end
+  end
+end

apps/block_scout_web/lib/block_scout_web/controllers/address_internal_transaction_controller.ex

@@ -11,7 +11,7 @@ defmodule BlockScoutWeb.AddressInternalTransactionController do
   alias BlockScoutWeb.InternalTransactionView
   alias Explorer.{Chain, Market}
   alias Explorer.ExchangeRates.Token
-  alias Indexer.CoinBalance.OnDemandFetcher
+  alias Indexer.Fetcher.CoinBalanceOnDemand
   alias Phoenix.View
 
   def index(conn, %{"address_id" => address_hash_string, "type" => "JSON"} = params) do
@@ -67,7 +67,7 @@ defmodule BlockScoutWeb.AddressInternalTransactionController do
         conn,
         "index.html",
         address: address,
-        coin_balance_status: OnDemandFetcher.trigger_fetch(address),
+        coin_balance_status: CoinBalanceOnDemand.trigger_fetch(address),
         current_path: current_path(conn),
         exchange_rate: Market.get_exchange_rate(Explorer.coin()) || Token.null(),
         filter: params["filter"],

apps/block_scout_web/lib/block_scout_web/controllers/address_read_contract_controller.ex

@@ -10,7 +10,7 @@ defmodule BlockScoutWeb.AddressReadContractController do
 
   alias Explorer.{Chain, Market}
   alias Explorer.ExchangeRates.Token
-  alias Indexer.CoinBalance.OnDemandFetcher
+  alias Indexer.Fetcher.CoinBalanceOnDemand
 
   import BlockScoutWeb.AddressController, only: [transaction_count: 1, validation_count: 1]
 
@@ -21,7 +21,7 @@ defmodule BlockScoutWeb.AddressReadContractController do
         conn,
         "index.html",
         address: address,
-        coin_balance_status: OnDemandFetcher.trigger_fetch(address),
+        coin_balance_status: CoinBalanceOnDemand.trigger_fetch(address),
         exchange_rate: Market.get_exchange_rate(Explorer.coin()) || Token.null(),
         transaction_count: transaction_count(address),
         validation_count: validation_count(address)

apps/block_scout_web/lib/block_scout_web/controllers/address_token_controller.ex

@@ -3,7 +3,7 @@ defmodule BlockScoutWeb.AddressTokenController do
 
   alias Explorer.{Chain, Market}
   alias Explorer.ExchangeRates.Token
-  alias Indexer.CoinBalance.OnDemandFetcher
+  alias Indexer.Fetcher.CoinBalanceOnDemand
 
   import BlockScoutWeb.AddressController, only: [transaction_count: 1, validation_count: 1]
   import BlockScoutWeb.Chain, only: [next_page_params: 3, paging_options: 1, split_list_by_page: 1]
@@ -18,7 +18,7 @@ defmodule BlockScoutWeb.AddressTokenController do
         conn,
         "index.html",
         address: address,
-        coin_balance_status: OnDemandFetcher.trigger_fetch(address),
+        coin_balance_status: CoinBalanceOnDemand.trigger_fetch(address),
         exchange_rate: Market.get_exchange_rate(Explorer.coin()) || Token.null(),
         transaction_count: transaction_count(address),
         validation_count: validation_count(address),

apps/block_scout_web/lib/block_scout_web/controllers/address_token_transfer_controller.ex

@@ -4,7 +4,7 @@ defmodule BlockScoutWeb.AddressTokenTransferController do
   alias BlockScoutWeb.TransactionView
   alias Explorer.ExchangeRates.Token
   alias Explorer.{Chain, Market}
-  alias Indexer.CoinBalance.OnDemandFetcher
+  alias Indexer.Fetcher.CoinBalanceOnDemand
   alias Phoenix.View
 
   import BlockScoutWeb.AddressController, only: [transaction_count: 1, validation_count: 1]
@@ -81,7 +81,7 @@ defmodule BlockScoutWeb.AddressTokenTransferController do
         conn,
         "index.html",
         address: address,
-        coin_balance_status: OnDemandFetcher.trigger_fetch(address),
+        coin_balance_status: CoinBalanceOnDemand.trigger_fetch(address),
         exchange_rate: Market.get_exchange_rate(Explorer.coin()) || Token.null(),
         current_path: current_path(conn),
         token: token,

apps/block_scout_web/lib/block_scout_web/controllers/address_transaction_controller.ex

@@ -11,7 +11,7 @@ defmodule BlockScoutWeb.AddressTransactionController do
   alias BlockScoutWeb.TransactionView
   alias Explorer.{Chain, Market}
   alias Explorer.ExchangeRates.Token
-  alias Indexer.CoinBalance.OnDemandFetcher
+  alias Indexer.Fetcher.CoinBalanceOnDemand
   alias Phoenix.View
 
   @transaction_necessity_by_association [
@@ -91,7 +91,7 @@ defmodule BlockScoutWeb.AddressTransactionController do
         conn,
         "index.html",
         address: address,
-        coin_balance_status: OnDemandFetcher.trigger_fetch(address),
+        coin_balance_status: CoinBalanceOnDemand.trigger_fetch(address),
         exchange_rate: Market.get_exchange_rate(Explorer.coin()) || Token.null(),
         filter: params["filter"],
         transaction_count: transaction_count(address),

apps/block_scout_web/lib/block_scout_web/controllers/address_validation_controller.ex

@@ -12,7 +12,7 @@ defmodule BlockScoutWeb.AddressValidationController do
   alias BlockScoutWeb.BlockView
   alias Explorer.ExchangeRates.Token
   alias Explorer.{Chain, Market}
-  alias Indexer.CoinBalance.OnDemandFetcher
+  alias Indexer.Fetcher.CoinBalanceOnDemand
   alias Phoenix.View
 
   def index(conn, %{"address_id" => address_hash_string, "type" => "JSON"} = params) do
@@ -76,7 +76,7 @@ defmodule BlockScoutWeb.AddressValidationController do
         conn,
         "index.html",
         address: address,
-        coin_balance_status: OnDemandFetcher.trigger_fetch(address),
+        coin_balance_status: CoinBalanceOnDemand.trigger_fetch(address),
         current_path: current_path(conn),
         transaction_count: transaction_count(address),
         validation_count: validation_count(address),

apps/block_scout_web/lib/block_scout_web/controllers/admin/tasks_controller.ex

@@ -0,0 +1,22 @@
+defmodule BlockScoutWeb.Admin.TaskController do
+  use BlockScoutWeb, :controller
+
+  require Logger
+
+  alias Explorer.Chain.ContractMethod
+
+  @ok_resp Poison.encode!(%{status: "success"})
+  @not_ok_resp Poison.encode!(%{status: "failure"})
+
+  def create_contract_methods(conn, _) do
+    case ContractMethod.import_all() do
+      :ok ->
+        send_resp(conn, 200, Poison.encode!(@ok_resp))
+
+      {:error, error} ->
+        Logger.error(fn -> ["Something went wrong while creating contract methods: ", inspect(error)] end)
+
+        send_resp(conn, 500, Poison.encode!(@not_ok_resp))
+    end
+  end
+end

apps/block_scout_web/lib/block_scout_web/controllers/api/rpc/address_controller.ex

@@ -1,9 +1,24 @@
 defmodule BlockScoutWeb.API.RPC.AddressController do
   use BlockScoutWeb, :controller
 
+  alias BlockScoutWeb.API.RPC.Helpers
   alias Explorer.{Chain, Etherscan}
   alias Explorer.Chain.{Address, Wei}
 
+  def listaccounts(conn, params) do
+    options =
+      params
+      |> optional_params()
+      |> Map.put_new(:page_number, 0)
+      |> Map.put_new(:page_size, 10)
+
+    accounts = list_accounts(options)
+
+    conn
+    |> put_status(200)
+    |> render(:listaccounts, %{accounts: accounts})
+  end
+
   def balance(conn, params, template \\ :balance) do
     with {:address_param, {:ok, address_param}} <- fetch_address(params),
          {:format, {:ok, address_hashes}} <- to_address_hashes(address_param) do
@@ -148,7 +163,7 @@ defmodule BlockScoutWeb.API.RPC.AddressController do
   end
 
   def getminedblocks(conn, params) do
-    options = put_pagination_options(%{}, params)
+    options = Helpers.put_pagination_options(%{}, params)
 
     with {:address_param, {:ok, address_param}} <- fetch_address(params),
          {:format, {:ok, address_hash}} <- to_address_hash(address_param),
@@ -174,7 +189,7 @@ defmodule BlockScoutWeb.API.RPC.AddressController do
   def optional_params(params) do
     %{}
     |> put_order_by_direction(params)
-    |> put_pagination_options(params)
+    |> Helpers.put_pagination_options(params)
     |> put_start_block(params)
     |> put_end_block(params)
     |> put_filter_by(params)
@@ -260,6 +275,13 @@ defmodule BlockScoutWeb.API.RPC.AddressController do
     Enum.any?(address_hashes, &(&1 == :error))
   end
 
+  defp list_accounts(%{page_number: page_number, page_size: page_size}) do
+    offset = (max(page_number, 1) - 1) * page_size
+
+    # limit is just page_size
+    Chain.list_ordered_addresses(offset, page_size)
+  end
+
   defp hashes_to_addresses(address_hashes) do
     address_hashes
     |> Chain.hashes_to_addresses()
@@ -317,24 +339,6 @@ defmodule BlockScoutWeb.API.RPC.AddressController do
     end
   end
 
-  defp put_pagination_options(options, params) do
-    with %{"page" => page, "offset" => offset} <- params,
-         {page_number, ""} when page_number > 0 <- Integer.parse(page),
-         {page_size, ""} when page_size > 0 <- Integer.parse(offset),
-         :ok <- validate_max_page_size(page_size) do
-      options
-      |> Map.put(:page_number, page_number)
-      |> Map.put(:page_size, page_size)
-    else
-      _ ->
-        options
-    end
-  end
-
-  defp validate_max_page_size(page_size) do
-    if page_size <= Etherscan.page_size_max(), do: :ok, else: :error
-  end
-
   defp put_start_block(options, params) do
     with %{"startblock" => startblock_param} <- params,
          {start_block, ""} <- Integer.parse(startblock_param) do

apps/block_scout_web/lib/block_scout_web/controllers/api/rpc/contract_controller.ex

@@ -1,7 +1,48 @@
 defmodule BlockScoutWeb.API.RPC.ContractController do
   use BlockScoutWeb, :controller
 
+  alias BlockScoutWeb.API.RPC.Helpers
   alias Explorer.Chain
+  alias Explorer.Chain.SmartContract
+  alias Explorer.SmartContract.Publisher
+
+  def verify(conn, %{"addressHash" => address_hash} = params) do
+    with {:params, {:ok, fetched_params}} <- {:params, fetch_verify_params(params)},
+         {:params, external_libraries} <-
+           {:params, fetch_external_libraries(params)},
+         {:publish, {:ok, smart_contract}} <-
+           {:publish, Publisher.publish(address_hash, fetched_params, external_libraries)},
+         preloaded_smart_contract <- SmartContract.preload_decompiled_smart_contract(smart_contract) do
+      render(conn, :verify, %{contract: preloaded_smart_contract, address_hash: address_hash})
+    else
+      {:publish, _} ->
+        render(conn, :error, error: "Something went wrong while publishing the contract.")
+
+      {:params, {:error, error}} ->
+        render(conn, :error, error: error)
+    end
+  end
+
+  def listcontracts(conn, params) do
+    with pagination_options <- Helpers.put_pagination_options(%{}, params),
+         {:params, {:ok, options}} <- {:params, add_filters(pagination_options, params)} do
+      options_with_defaults =
+        options
+        |> Map.put_new(:page_number, 0)
+        |> Map.put_new(:page_size, 10)
+
+      contracts = list_contracts(options_with_defaults)
+
+      conn
+      |> put_status(200)
+      |> render(:listcontracts, %{contracts: contracts})
+    else
+      {:params, {:error, error}} ->
+        conn
+        |> put_status(400)
+        |> render(:error, error: error)
+    end
+  end
 
   def getabi(conn, params) do
     with {:address_param, {:ok, address_param}} <- fetch_address(params),
@@ -24,7 +65,10 @@ defmodule BlockScoutWeb.API.RPC.ContractController do
     with {:address_param, {:ok, address_param}} <- fetch_address(params),
          {:format, {:ok, address_hash}} <- to_address_hash(address_param),
          {:contract, {:ok, contract}} <- to_smart_contract(address_hash) do
-      render(conn, :getsourcecode, %{contract: contract})
+      render(conn, :getsourcecode, %{
+        contract: contract,
+        address_hash: address_hash
+      })
     else
       {:address_param, :error} ->
         render(conn, :error, error: "Query parameter address is required")
@@ -33,8 +77,80 @@ defmodule BlockScoutWeb.API.RPC.ContractController do
         render(conn, :error, error: "Invalid address hash")
 
       {:contract, :not_found} ->
-        render(conn, :getsourcecode, %{contract: nil})
+        render(conn, :getsourcecode, %{contract: nil, address_hash: nil})
+    end
+  end
+
+  defp list_contracts(%{page_number: page_number, page_size: page_size} = opts) do
+    offset = (max(page_number, 1) - 1) * page_size
+
+    case Map.get(opts, :filter) do
+      :verified ->
+        Chain.list_verified_contracts(page_size, offset)
+
+      :decompiled ->
+        not_decompiled_with_version = Map.get(opts, :not_decompiled_with_version)
+        Chain.list_decompiled_contracts(page_size, offset, not_decompiled_with_version)
+
+      :unverified ->
+        Chain.list_unverified_contracts(page_size, offset)
+
+      :not_decompiled ->
+        Chain.list_not_decompiled_contracts(page_size, offset)
+
+      _ ->
+        Chain.list_contracts(page_size, offset)
+    end
+  end
+
+  defp add_filters(options, params) do
+    options
+    |> add_filter(params)
+    |> add_not_decompiled_with_version(params)
+  end
+
+  defp add_filter(options, params) do
+    with {:param, {:ok, value}} <- {:param, Map.fetch(params, "filter")},
+         {:validation, {:ok, filter}} <- {:validation, contracts_filter(value)} do
+      {:ok, Map.put(options, :filter, filter)}
+    else
+      {:param, :error} -> {:ok, options}
+      {:validation, {:error, error}} -> {:error, error}
+    end
+  end
+
+  defp add_not_decompiled_with_version({:ok, options}, params) do
+    case Map.fetch(params, "not_decompiled_with_version") do
+      {:ok, value} -> {:ok, Map.put(options, :not_decompiled_with_version, value)}
+      :error -> {:ok, options}
+    end
+  end
+
+  defp add_not_decompiled_with_version(options, _params) do
+    options
   end
+
+  defp contracts_filter(nil), do: {:ok, nil}
+  defp contracts_filter(1), do: {:ok, :verified}
+  defp contracts_filter(2), do: {:ok, :decompiled}
+  defp contracts_filter(3), do: {:ok, :unverified}
+  defp contracts_filter(4), do: {:ok, :not_decompiled}
+  defp contracts_filter("verified"), do: {:ok, :verified}
+  defp contracts_filter("decompiled"), do: {:ok, :decompiled}
+  defp contracts_filter("unverified"), do: {:ok, :unverified}
+  defp contracts_filter("not_decompiled"), do: {:ok, :not_decompiled}
+
+  defp contracts_filter(filter) when is_bitstring(filter) do
+    case Integer.parse(filter) do
+      {number, ""} -> contracts_filter(number)
+      _ -> {:error, contracts_filter_error_message(filter)}
+    end
+  end
+
+  defp contracts_filter(filter), do: {:error, contracts_filter_error_message(filter)}
+
+  defp contracts_filter_error_message(filter) do
+    "#{filter} is not a valid value for `filter`. Please use one of: verified, decompiled, unverified, not_decompiled, 1, 2, 3, 4."
   end
 
   defp fetch_address(params) do
@@ -48,10 +164,80 @@ defmodule BlockScoutWeb.API.RPC.ContractController do
   defp to_smart_contract(address_hash) do
     result =
       case Chain.address_hash_to_smart_contract(address_hash) do
-        nil -> :not_found
+        nil ->
-        contract -> {:ok, contract}
+          :not_found
+
+        contract ->
+          {:ok, SmartContract.preload_decompiled_smart_contract(contract)}
       end
 
     {:contract, result}
   end
+
+  defp fetch_verify_params(params) do
+    {:ok, %{}}
+    |> required_param(params, "addressHash", "address_hash")
+    |> required_param(params, "name", "name")
+    |> required_param(params, "compilerVersion", "compiler_version")
+    |> required_param(params, "optimization", "optimization")
+    |> required_param(params, "contractSourceCode", "contract_source_code")
+    |> optional_param(params, "evmVersion", "evm_version")
+    |> optional_param(params, "constructorArguments", "constructor_arguments")
+    |> optional_param(params, "optimizationRuns", "optimization_runs")
+    |> parse_optimization_runs()
+  end
+
+  defp parse_optimization_runs({:ok, %{"optimization_runs" => runs} = opts}) when is_bitstring(runs) do
+    {:ok, Map.put(opts, "optimization_runs", 200)}
+  end
+
+  defp parse_optimization_runs({:ok, %{"optimization_runs" => runs} = opts}) when is_integer(runs) do
+    {:ok, opts}
+  end
+
+  defp parse_optimization_runs({:ok, opts}) do
+    {:ok, Map.put(opts, "optimization_runs", 200)}
+  end
+
+  defp parse_optimization_runs(other), do: other
+
+  defp fetch_external_libraries(params) do
+    Enum.reduce(1..5, %{}, fn number, acc ->
+      case Map.fetch(params, "library#{number}Name") do
+        {:ok, library_name} ->
+          library_address = Map.get(params, "library#{number}Address")
+
+          acc
+          |> Map.put("library#{number}_name", library_name)
+          |> Map.put("library#{number}_address", library_address)
+
+        :error ->
+          acc
+      end
+    end)
+  end
+
+  defp required_param({:error, _} = error, _, _, _), do: error
+
+  defp required_param({:ok, map}, params, key, new_key) do
+    case Map.fetch(params, key) do
+      {:ok, value} ->
+        {:ok, Map.put(map, new_key, value)}
+
+      :error ->
+        {:error, "#{key} is required."}
+    end
+  end
+
+  defp optional_param({:error, _} = error, _, _, _), do: error
+
+  defp optional_param({:ok, map}, params, key, new_key) do
+    case Map.fetch(params, key) do
+      {:ok, value} ->
+        {:ok, Map.put(map, new_key, value)}
+
+      :error ->
+        {:ok, map}
+    end
+  end
 end

apps/block_scout_web/lib/block_scout_web/controllers/api/rpc/helpers.ex

@@ -0,0 +1,42 @@
+defmodule BlockScoutWeb.API.RPC.Helpers do
+  @moduledoc """
+  Small helpers for RPC api controllers.
+  """
+  alias Explorer.Etherscan
+
+  def put_pagination_options(options, params) do
+    options
+    |> put_page_option(params)
+    |> put_offset_option(params)
+  end
+
+  def put_page_option(options, %{"page" => page}) do
+    case Integer.parse(page) do
+      {page_number, ""} when page_number > 0 ->
+        Map.put(options, :page_number, page_number)
+
+      _ ->
+        options
+    end
+  end
+
+  def put_page_option(options, _), do: options
+
+  def put_offset_option(options, %{"offset" => offset}) do
+    with {page_size, ""} when page_size > 0 <- Integer.parse(offset),
+         :ok <- validate_max_page_size(page_size) do
+      Map.put(options, :page_size, page_size)
+    else
+      _ ->
+        options
+    end
+  end
+
+  def put_offset_option(options, _) do
+    options
+  end
+
+  defp validate_max_page_size(page_size) do
+    if page_size <= Etherscan.page_size_max(), do: :ok, else: :error
+  end
+end

apps/block_scout_web/lib/block_scout_web/controllers/api/rpc/rpc_translator.ex

@@ -13,6 +13,8 @@ defmodule BlockScoutWeb.API.RPC.RPCTranslator do
 
   """
 
+  require Logger
+
   import Plug.Conn
   import Phoenix.Controller, only: [put_view: 2]
 
@@ -28,12 +30,28 @@ defmodule BlockScoutWeb.API.RPC.RPCTranslator do
          {:ok, conn} <- call_controller(conn, controller, action) do
       conn
     else
-      _ ->
+      {:error, :no_action} ->
         conn
         |> put_status(400)
         |> put_view(RPCView)
         |> Controller.render(:error, error: "Unknown action")
         |> halt()
+
+      {:error, error} ->
+        Logger.error(fn -> ["Error while calling RPC action", inspect(error)] end)
+
+        conn
+        |> put_status(500)
+        |> put_view(RPCView)
+        |> Controller.render(:error, error: "Something went wrong.")
+        |> halt()
+
+      _ ->
+        conn
+        |> put_status(500)
+        |> put_view(RPCView)
+        |> Controller.render(:error, error: "Something went wrong.")
+        |> halt()
     end
   end
 
@@ -46,26 +64,35 @@ defmodule BlockScoutWeb.API.RPC.RPCTranslator do
   end
 
   @doc false
-  @spec translate_module(map(), String.t()) :: {:ok, module()} | :error
+  @spec translate_module(map(), String.t()) :: {:ok, module()} | {:error, :no_action}
-  def translate_module(translations, module) do
+  defp translate_module(translations, module) do
     module_lowercase = String.downcase(module)
-    Map.fetch(translations, module_lowercase)
+
+    case Map.fetch(translations, module_lowercase) do
+      {:ok, module} -> {:ok, module}
+      _ -> {:error, :no_action}
+    end
   end
 
   @doc false
-  @spec translate_action(String.t()) :: {:ok, atom()} | :error
+  @spec translate_action(String.t()) :: {:ok, atom()} | {:error, :no_action}
-  def translate_action(action) do
+  defp translate_action(action) do
     action_lowercase = String.downcase(action)
     {:ok, String.to_existing_atom(action_lowercase)}
   rescue
-    ArgumentError -> :error
+    ArgumentError -> {:error, :no_action}
   end
 
   @doc false
-  @spec call_controller(Conn.t(), module(), atom()) :: {:ok, Conn.t()} | :error
+  @spec call_controller(Conn.t(), module(), atom()) :: {:ok, Conn.t()} | {:error, :no_action} | {:error, Exception.t()}
-  def call_controller(conn, controller, action) do
+  defp call_controller(conn, controller, action) do
+    if :erlang.function_exported(controller, action, 2) do
       {:ok, controller.call(conn, action)}
+    else
+      {:error, :no_action}
+    end
   rescue
-    Conn.WrapperError -> :error
+    e ->
+      {:error, Exception.format(:error, e, __STACKTRACE__)}
   end
 end

apps/block_scout_web/lib/block_scout_web/controllers/api/rpc/transaction_controller.ex

@@ -1,14 +1,24 @@
 defmodule BlockScoutWeb.API.RPC.TransactionController do
   use BlockScoutWeb, :controller
 
+  import BlockScoutWeb.Chain, only: [paging_options: 1, next_page_params: 3, split_list_by_page: 1]
+
   alias Explorer.Chain
 
   def gettxinfo(conn, params) do
     with {:txhash_param, {:ok, txhash_param}} <- fetch_txhash(params),
          {:format, {:ok, transaction_hash}} <- to_transaction_hash(txhash_param),
-         {:transaction, {:ok, transaction}} <- transaction_from_hash(transaction_hash) do
+         {:transaction, {:ok, transaction}} <- transaction_from_hash(transaction_hash),
-      logs = Chain.transaction_to_logs(transaction)
+         paging_options <- paging_options(params) do
-      render(conn, :gettxinfo, %{transaction: transaction, block_height: Chain.block_height(), logs: logs})
+      logs = Chain.transaction_to_logs(transaction, paging_options)
+      {logs, next_page} = split_list_by_page(logs)
+
+      render(conn, :gettxinfo, %{
+        transaction: transaction,
+        block_height: Chain.block_height(),
+        logs: logs,
+        next_page_params: next_page_params(next_page, logs, params)
+      })
     else
       {:transaction, :error} ->
         render(conn, :error, error: "Transaction not found")

apps/block_scout_web/lib/block_scout_web/controllers/api/v1/decompiled_smart_contract_controller.ex

@@ -0,0 +1,79 @@
+defmodule BlockScoutWeb.API.V1.DecompiledSmartContractController do
+  use BlockScoutWeb, :controller
+
+  alias Explorer.Chain
+  alias Explorer.Chain.Hash.Address
+
+  def create(conn, params) do
+    if auth_token(conn) == actual_token() do
+      with {:ok, hash} <- validate_address_hash(params["address_hash"]),
+           :ok <- smart_contract_exists?(hash),
+           :ok <- decompiled_contract_exists?(params["address_hash"], params["decompiler_version"]) do
+        case Chain.create_decompiled_smart_contract(params) do
+          {:ok, decompiled_smart_contract} ->
+            send_resp(conn, :created, Jason.encode!(decompiled_smart_contract))
+
+          {:error, changeset} ->
+            errors =
+              changeset.errors
+              |> Enum.into(%{}, fn {field, {message, _}} ->
+                {field, message}
+              end)
+
+            send_resp(conn, :unprocessable_entity, encode(errors))
+        end
+      else
+        :invalid_address ->
+          send_resp(conn, :unprocessable_entity, encode(%{error: "address_hash is invalid"}))
+
+        :not_found ->
+          send_resp(conn, :unprocessable_entity, encode(%{error: "address is not found"}))
+
+        :contract_exists ->
+          send_resp(
+            conn,
+            :unprocessable_entity,
+            encode(%{error: "decompiled code already exists for the decompiler version"})
+          )
+      end
+    else
+      send_resp(conn, :forbidden, "")
+    end
+  end
+
+  defp smart_contract_exists?(address_hash) do
+    case Chain.hash_to_address(address_hash) do
+      {:ok, _address} -> :ok
+      _ -> :not_found
+    end
+  end
+
+  defp validate_address_hash(address_hash) do
+    case Address.cast(address_hash) do
+      {:ok, hash} -> {:ok, hash}
+      :error -> :invalid_address
+    end
+  end
+
+  defp decompiled_contract_exists?(address_hash, decompiler_version) do
+    case Chain.decompiled_code(address_hash, decompiler_version) do
+      {:ok, _} -> :contract_exists
+      _ -> :ok
+    end
+  end
+
+  defp auth_token(conn) do
+    case get_req_header(conn, "auth_token") do
+      [token] -> token
+      other -> other
+    end
+  end
+
+  defp actual_token do
+    Application.get_env(:block_scout_web, :decompiled_smart_contract_token)
+  end
+
+  defp encode(data) do
+    Jason.encode!(data)
+  end
+end

apps/block_scout_web/lib/block_scout_web/controllers/chain_controller.ex

@@ -39,6 +39,23 @@ defmodule BlockScoutWeb.ChainController do
     end
   end
 
+  def token_autocomplete(conn, %{"q" => term}) when is_binary(term) do
+    if term == "" do
+      json(conn, "{}")
+    else
+      result =
+        term
+        |> String.trim()
+        |> Chain.search_token()
+
+      json(conn, result)
+    end
+  end
+
+  def token_autocomplete(conn, _) do
+    json(conn, "{}")
+  end
+
   def chain_blocks(conn, _params) do
     if ajax?(conn) do
       blocks =

apps/block_scout_web/lib/block_scout_web/csp_header.ex

@@ -13,8 +13,8 @@ defmodule BlockScoutWeb.CSPHeader do
       "content-security-policy" => "\
         connect-src 'self' #{websocket_endpoints(conn)}; \
         default-src 'self';\
-        script-src 'self' 'unsafe-inline' 'unsafe-eval';\
+        script-src 'self' 'unsafe-inline' 'unsafe-eval' https://nico-amsterdam.github.io;\
-        style-src 'self' 'unsafe-inline' 'unsafe-eval' https://fonts.googleapis.com;\
+        style-src 'self' 'unsafe-inline' 'unsafe-eval' https://fonts.googleapis.com https://nico-amsterdam.github.io;\
         img-src 'self' 'unsafe-inline' 'unsafe-eval' data:;\
         font-src 'self' 'unsafe-inline' 'unsafe-eval' https://fonts.gstatic.com data:;\
       "

apps/block_scout_web/lib/block_scout_web/etherscan.ex

@@ -168,6 +168,17 @@ defmodule BlockScoutWeb.Etherscan do
     ]
   }
 
+  @account_listaccounts_example_value %{
+    "status" => "1",
+    "message" => "OK",
+    "result" => [
+      %{
+        "address" => "0x0000000000000000000000000000000000000000",
+        "balance" => "135499"
+      }
+    ]
+  }
+
   @account_getminedblocks_example_value_error %{
     "status" => "0",
     "message" => "No blocks found",
@@ -265,6 +276,45 @@ defmodule BlockScoutWeb.Etherscan do
     "result" => nil
   }
 
+  @contract_listcontracts_example_value %{
+    "status" => "1",
+    "message" => "OK",
+    "result" => [
+      %{
+        "SourceCode" => """
+        pragma solidity >0.4.24;
+
+        contract Test {
+        constructor() public { b = hex"12345678901234567890123456789012"; }
+        event Event(uint indexed a, bytes32 b);
+        event Event2(uint indexed a, bytes32 b);
+        function foo(uint a) public { emit Event(a, b); }
+        bytes32 b;
+        }
+        """,
+        "ABI" => """
+        [{
+        "type":"event",
+        "inputs": [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"bytes32","indexed":false}],
+        "name":"Event"
+        }, {
+        "type":"event",
+        "inputs": [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"bytes32","indexed":false}],
+        "name":"Event2"
+        }, {
+        "type":"function",
+        "inputs": [{"name":"a","type":"uint256"}],
+        "name":"foo",
+        "outputs": []
+        }]
+        """,
+        "ContractName" => "Test",
+        "CompilerVersion" => "v0.2.1-2016-01-30-91a6b35",
+        "OptimizationUsed" => "1"
+      }
+    ]
+  }
+
   @contract_getabi_example_value %{
     "status" => "1",
     "message" => "OK",
@@ -278,6 +328,49 @@ defmodule BlockScoutWeb.Etherscan do
     "result" => nil
   }
 
+  @contract_verify_example_value %{
+    "status" => "1",
+    "message" => "OK",
+    "result" => %{
+      "SourceCode" => """
+      pragma solidity >0.4.24;
+
+      contract Test {
+      constructor() public { b = hex"12345678901234567890123456789012"; }
+      event Event(uint indexed a, bytes32 b);
+      event Event2(uint indexed a, bytes32 b);
+      function foo(uint a) public { emit Event(a, b); }
+      bytes32 b;
+      }
+      """,
+      "ABI" => """
+      [{
+      "type":"event",
+      "inputs": [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"bytes32","indexed":false}],
+      "name":"Event"
+      }, {
+      "type":"event",
+      "inputs": [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"bytes32","indexed":false}],
+      "name":"Event2"
+      }, {
+      "type":"function",
+      "inputs": [{"name":"a","type":"uint256"}],
+      "name":"foo",
+      "outputs": []
+      }]
+      """,
+      "ContractName" => "Test",
+      "CompilerVersion" => "v0.2.1-2016-01-30-91a6b35",
+      "OptimizationUsed" => "1"
+    }
+  }
+
+  @contract_verify_example_value_error %{
+    "status" => "0",
+    "message" => "There was an error verifying the contract.",
+    "result" => nil
+  }
+
   @contract_getsourcecode_example_value %{
     "status" => "1",
     "message" => "OK",
@@ -720,9 +813,18 @@ defmodule BlockScoutWeb.Etherscan do
     }
   }
 
+  @account_model %{
+    name: "Account",
+    fields: %{
+      "address" => @address_hash_type,
+      "balance" => @wei_type
+    }
+  }
+
   @contract_model %{
     name: "Contract",
     fields: %{
+      "Address" => @address_hash_type,
       "SourceCode" => %{
         type: "contract source code",
         definition: "The contract's source code.",
@@ -738,6 +840,33 @@ defmodule BlockScoutWeb.Etherscan do
         }"
         """
       },
+      "DecompilerVersion" => %{
+        type: "decompiler version",
+        definition: "When decompiled source code is present, the decompiler version with which it was generated.",
+        example: "decompiler.version"
+      },
+      "DecompiledSourceCode" => %{
+        type: "contract decompiled source code",
+        definition: "The contract's decompiled source code.",
+        example: """
+        const name() = 'CryptoKitties'
+        const GEN0_STARTING_PRICE() = 10^16
+        const GEN0_AUCTION_DURATION() = 86400
+        const GEN0_CREATION_LIMIT() = 45000
+        const symbol() = 'CK'
+        const PROMO_CREATION_LIMIT() = 5000
+        def storage:
+          ceoAddress is addr # mask(160, 0) at storage #0
+          cfoAddress is addr # mask(160, 0) at storage #1
+          stor1.768 is uint16 => uint256 # mask(256, 768) at storage #1
+          cooAddress is addr # mask(160, 0) at storage #2
+          stor2.0 is uint256 => uint256 # mask(256, 0) at storage #2
+          paused is uint8 # mask(8, 160) at storage #2
+          stor2.256 is uint256 => uint256 # mask(256, 256) at storage #2
+          stor3 is uint32 #
+        ...<continues>
+        """
+      },
       "ABI" => %{
         type: "ABI",
         definition: "JSON string for the contract's Application Binary Interface (ABI)",
@@ -1289,6 +1418,45 @@ defmodule BlockScoutWeb.Etherscan do
     ]
   }
 
+  @account_listaccounts_action %{
+    name: "listaccounts",
+    description:
+      "Get a list of accounts and their balances, sorted ascending by the time they were first seen by the explorer.",
+    required_params: [],
+    optional_params: [
+      %{
+        key: "page",
+        type: "integer",
+        description:
+          "A nonnegative integer that represents the page number to be used for pagination. 'offset' must be provided in conjunction."
+      },
+      %{
+        key: "offset",
+        type: "integer",
+        description:
+          "A nonnegative integer that represents the maximum number of records to return when paginating. 'page' must be provided in conjunction."
+      }
+    ],
+    responses: [
+      %{
+        code: "200",
+        description: "successful operation",
+        example_value: Jason.encode!(@account_listaccounts_example_value),
+        model: %{
+          name: "Result",
+          fields: %{
+            status: @status_type,
+            message: @message_type,
+            result: %{
+              type: "array",
+              array_type: @account_model
+            }
+          }
+        }
+      }
+    ]
+  }
+
   @logs_getlogs_action %{
     name: "getLogs",
     description: "Get event logs for an address and/or topics. Up to a maximum of 1,000 event logs.",
@@ -1572,6 +1740,176 @@ defmodule BlockScoutWeb.Etherscan do
     ]
   }
 
+  @contract_listcontracts_action %{
+    name: "listcontracts",
+    description: "Get a list of contracts, sorted ascending by the time they were first seen by the explorer.",
+    required_params: [],
+    optional_params: [
+      %{
+        key: "page",
+        type: "integer",
+        description:
+          "A nonnegative integer that represents the page number to be used for pagination. 'offset' must be provided in conjunction."
+      },
+      %{
+        key: "offset",
+        type: "integer",
+        description:
+          "A nonnegative integer that represents the maximum number of records to return when paginating. 'page' must be provided in conjunction."
+      },
+      %{
+        key: "filter",
+        type: "string",
+        description:
+          "verified|decompiled|unverified|not_decompiled, or 1|2|3|4 respectively. This requests only contracts with that status."
+      },
+      %{
+        key: "not_decompiled_with_version",
+        type: "string",
+        description:
+          "Ensures that none of the returned contracts were decompiled with the provided version. Ignored unless filtering for decompiled contracts."
+      }
+    ],
+    responses: [
+      %{
+        code: "200",
+        description: "successful operation",
+        example_value: Jason.encode!(@contract_listcontracts_example_value),
+        model: %{
+          name: "Result",
+          fields: %{
+            status: @status_type,
+            message: @message_type,
+            result: %{
+              type: "array",
+              array_type: @contract_model
+            }
+          }
+        }
+      }
+    ]
+  }
+
+  @contract_verify_action %{
+    name: "verify",
+    description: "Verify a contract with its source code and contract creation information.",
+    required_params: [
+      %{
+        key: "addressHash",
+        placeholder: "addressHash",
+        type: "string",
+        description: "The address of the contract."
+      },
+      %{
+        key: "name",
+        placeholder: "name",
+        type: "string",
+        description: "The name of the contract."
+      },
+      %{
+        key: "compilerVersion",
+        placeholder: "compilerVersion",
+        type: "string",
+        description: "The compiler version for the contract."
+      },
+      %{
+        key: "optimization",
+        placeholder: false,
+        type: "boolean",
+        description: "Whether or not compiler optimizations were enabled."
+      },
+      %{
+        key: "contractSourceCode",
+        placeholder: "contractSourceCode",
+        type: "string",
+        description: "The source code of the contract."
+      }
+    ],
+    optional_params: [
+      %{
+        key: "constructorArguments",
+        type: "string",
+        description: "The constructor argument data provided."
+      },
+      %{
+        key: "evmVersion",
+        placeholder: "evmVersion",
+        type: "string",
+        description: "The EVM version for the contract."
+      },
+      %{
+        key: "optimizationRuns",
+        placeholder: "optimizationRuns",
+        type: "integer",
+        description: "The number of optimization runs used during compilation"
+      },
+      %{
+        key: "library1Name",
+        type: "string",
+        description: "The name of the first library used."
+      },
+      %{
+        key: "library1Address",
+        type: "string",
+        description: "The address of the first library used."
+      },
+      %{
+        key: "library2Name",
+        type: "string",
+        description: "The name of the second library used."
+      },
+      %{
+        key: "library2Address",
+        type: "string",
+        description: "The address of the second library used."
+      },
+      %{
+        key: "library3Name",
+        type: "string",
+        description: "The name of the third library used."
+      },
+      %{
+        key: "library3Address",
+        type: "string",
+        description: "The address of the third library used."
+      },
+      %{
+        key: "library4Name",
+        type: "string",
+        description: "The name of the fourth library used."
+      },
+      %{
+        key: "library4Address",
+        type: "string",
+        description: "The address of the fourth library used."
+      },
+      %{
+        key: "library5Name",
+        type: "string",
+        description: "The name of the fourth library used."
+      },
+      %{
+        key: "library5Address",
+        type: "string",
+        description: "The address of the fourth library used."
+      }
+    ],
+    responses: [
+      %{
+        code: "200",
+        description: "successful operation",
+        example_value: Jason.encode!(@contract_verify_example_value),
+        type: "model",
+        model: @contract_model
+      },
+      %{
+        code: "200",
+        description: "error",
+        example_value: Jason.encode!(@contract_verify_example_value_error)
+      }
+    ]
+  }
+
   @contract_getabi_action %{
     name: "getabi",
     description: "Get ABI for verified contract. Also available through a GraphQL 'addresses' query.",
@@ -1657,7 +1995,13 @@ defmodule BlockScoutWeb.Etherscan do
         description: "Transaction hash. Hash of contents of the transaction."
       }
     ],
-    optional_params: [],
+    optional_params: [
+      %{
+        key: "index",
+        type: "integer",
+        description: "A nonnegative integer that represents the log index to be used for pagination."
+      }
+    ],
     responses: [
       %{
         code: "200",
@@ -1767,7 +2111,8 @@ defmodule BlockScoutWeb.Etherscan do
       @account_tokentx_action,
       @account_tokenbalance_action,
       @account_tokenlist_action,
-      @account_getminedblocks_action
+      @account_getminedblocks_action,
+      @account_listaccounts_action
     ]
   }
 
@@ -1798,8 +2143,10 @@ defmodule BlockScoutWeb.Etherscan do
   @contract_module %{
     name: "contract",
     actions: [
+      @contract_listcontracts_action,
       @contract_getabi_action,
-      @contract_getsourcecode_action
+      @contract_getsourcecode_action,
+      @contract_verify_action
     ]
   }
 

apps/block_scout_web/lib/block_scout_web/notifier.ex

@@ -116,7 +116,7 @@ defmodule BlockScoutWeb.Notifier do
 
   defp broadcast_block(block) do
     preloaded_block = Repo.preload(block, [[miner: :names], :transactions, :rewards])
-    average_block_time = AverageBlockTime.average_block_time(preloaded_block)
+    average_block_time = AverageBlockTime.average_block_time()
 
     Endpoint.broadcast("blocks:new_block", "new_block", %{
       block: preloaded_block,

apps/block_scout_web/lib/block_scout_web/router.ex

@@ -22,6 +22,8 @@ defmodule BlockScoutWeb.Router do
     pipe_through(:api)
 
     get("/supply", SupplyController, :supply)
+
+    resources("/decompiled_smart_contract", DecompiledSmartContractController, only: [:create])
   end
 
   scope "/api", BlockScoutWeb.API.RPC do
@@ -127,6 +129,13 @@ defmodule BlockScoutWeb.Router do
         as: :contract
       )
 
+      resources(
+        "/decompiled_contracts",
+        AddressDecompiledContractController,
+        only: [:index],
+        as: :decompiled_contract
+      )
+
       resources(
         "/contract_verifications",
         AddressContractVerificationController,
@@ -211,6 +220,8 @@ defmodule BlockScoutWeb.Router do
 
     get("/search", ChainController, :search)
 
+    get("/token_autocomplete", ChainController, :token_autocomplete)
+
     get("/chain_blocks", ChainController, :chain_blocks, as: :chain_blocks)
 
     get("/api_docs", APIDocsController, :index)

apps/block_scout_web/lib/block_scout_web/templates/address/_balance_card.html.eex

@@ -4,17 +4,13 @@
     <h2 class="card-title text-white balance-card-title"><%= gettext "Balance" %></h2>
     <div class="text-right">
       <h3 class="text-white" data-test="address_balance"><%= balance(@address) %></h3>
-      <%= unless match?({:pending, _}, @coin_balance_status) do %>
+      <%= if !match?({:pending, _}, @coin_balance_status) && !empty_exchange_rate?(@exchange_rate) do %>
         <span class="text-white text-faded">
           <span class="current-balance-in-wei"
             data-wei-value="<%= if @address.fetched_coin_balance, do: @address.fetched_coin_balance.value %>"
-            <% if !empty_exchange_rate?(@exchange_rate) do %>
               data-usd-exchange-rate="<%= @exchange_rate.usd_value %>">
-            <% end %>
           </spanc>
-          <% if !empty_exchange_rate?(@exchange_rate) do %>
           <small>(@ <span data-usd-unit-price="<%= @exchange_rate.usd_value %>"></span>/<%= gettext("Ether") %>)</small>
-          <% end %>
           <br>
         </span>
       <% end %>

apps/block_scout_web/lib/block_scout_web/templates/address/_tabs.html.eex

@@ -59,6 +59,17 @@
     </li>
   <% end %>
 
+  <%= if has_decompiled_code?(@address) do %>
+    <li class="nav-item">
+      <%= link(
+          to: address_decompiled_contract_path(@conn, :index, @address.hash),
+          class: "nav-link #{tab_status("decompiled_contracts", @conn.request_path)}") do %>
+          <%= gettext("Decompiled code") %>
+          <i class="far fa-check-circle text-success"></i>
+       <% end %>
+    </li>
+  <% end %>
+
   <%= if smart_contract_with_read_only_functions?(@address) do %>
     <li class="nav-item">
       <%= link(
@@ -115,6 +126,15 @@
           <%= if smart_contract_verified?(@address) do %>
             <i class="far fa-check-circle"></i>
           <% end %>
+
+          <%= if has_decompiled_code?(@address) do %>
+            <%= link(
+                to: address_decompiled_contract_path(@conn, :index, @address.hash),
+                class: "dropdown-item #{tab_status("contracts", @conn.request_path)}") do %>
+             <%= gettext("Decompiled code") %>
+             <i class="far fa-check-circle text-success"></i>
+          <% end %>
+        <% end %>
         <% end %>
       <% end %>
       <%= if smart_contract_with_read_only_functions?(@address) do %>

apps/block_scout_web/lib/block_scout_web/templates/address/overview.html.eex

@@ -35,10 +35,18 @@
             <% end %>
             <span>
               <span class="address-detail-item">
+                <%= if contract?(@address) do %>
+                  <%= gettext(">=") %>
+                  <span data-selector="transaction-count">
+                    <%= incoming_transaction_count(@address) %>
+                  </span>
+                  <%= gettext("Incoming Transactions") %>
+                <% else %>
                   <span data-selector="transaction-count">
                     <%= Cldr.Number.to_string!(@transaction_count, format: "#,###") %>
                   </span>
                   <%= gettext("Transactions Sent") %>
+                <% end %>
               </span>
               <span class="address-detail-item">
                 <%= gettext("Last Balance Update: Block #") %><span data-selector="fetched-coin-balance-block-number"><%= @address.fetched_coin_balance_block_number %></span>
@@ -53,8 +61,11 @@
               <% end %>
             </span>
           </div>
+          <% from_address_hash = from_address_hash(@address) %>
+
           <%= if contract?(@address) do %>
             <span class="text-muted" data-test="address_contract_creator">
+              <%= if from_address_hash do %>
                 <%= gettext "Created by" %>
                 <%= link(
                   trimmed_hash(from_address_hash(@address)),
@@ -68,6 +79,9 @@
                   to: transaction_path(@conn, :show, transaction_hash(@address)),
                   "data-test": "transaction_hash_link"
                 ) %>
+              <% else %>
+                <p class="alert alert-danger" role="alert"><%= gettext("Error: Could not determine contract creator.") %></p>
+              <% end %>
             </span>
           <% end %>
         </div>

apps/block_scout_web/lib/block_scout_web/templates/address_contract_verification/new.html.eex

@@ -27,6 +27,11 @@
           <%= error_tag f, :compiler_version, id: "compiler-help-block", class: "text-danger" %>
         </div>
 
+        <div class="form-group">
+          <%= label :evm_version, :evm_version, gettext("EVM Version") %>
+          <%= select :evm_version, :evm_version, @evm_versions, class: "form-control", selected: "petersburg", "aria-describedby": "evm-version-help-block" %>
+        </div>
+
         <div class="form-group mb-4">
           <%= label f, "Optimization" %>
 
@@ -43,6 +48,11 @@
           <%= error_tag f, :optimization, id: "optimization-help-block", class: "text-danger" %>
         </div>
 
+        <div class="form-group">
+          <%= label f, :name, gettext("Optimization runs") %>
+          <%= text_input :optimization, :runs, value: 200, class: "form-control", "aria-describedby": "optimization-runs-help-block", "data-test": "optimization-runs" %>
+        </div>
+
         <div class="form-group mb-4">
           <%= label f, :contract_source_code, gettext("Enter the Solidity Contract Code below") %>
           <%= textarea f, :contract_source_code, class: "form-control monospace", rows: 3, "aria-describedby": "contract-source-code-help-block" %>
@@ -50,7 +60,7 @@
         </div>
 
         <div class="form-group mb-4">
-          <%= label f, :contructor_arguments, gettext("Enter contructor arguments if the contract had any") %>
+          <%= label f, :contructor_arguments, gettext("Enter constructor arguments if the contract had any") %>
           <%= textarea f, :constructor_arguments, class: "form-control monospace", rows: 3, "aria-describedby": "contract-constructor-arguments-help-block" %>
           <%= error_tag f, :constructor_arguments, id: "contract-constructor-arguments-help-block", class: "text-danger", "data-test": "contract-constructor-arguments-error" %>
         </div>

apps/block_scout_web/lib/block_scout_web/templates/address_decompiled_contract/_metatags.html.eex

@@ -0,0 +1 @@
+<%= render BlockScoutWeb.AddressView, "_metatags.html", conn: @conn, address: @address %>

apps/block_scout_web/lib/block_scout_web/templates/address_decompiled_contract/index.html.eex

@@ -0,0 +1,30 @@
+<section class="container">
+  <%= render BlockScoutWeb.AddressView, "overview.html", assigns %>
+
+  <div class="card">
+    <div class="card-header">
+      <%= render BlockScoutWeb.AddressView, "_tabs.html", assigns %>
+    </div>
+
+    <%= for contract <- sort_contracts_by_version(@address.decompiled_smart_contracts) do %>
+      <div class="card-body">
+        <h3><%= gettext "Decompiler version" %></h3>
+        <div class="tile tile-muted">
+          <pre class="pre-wrap"><code class="nohighlight"><%= contract.decompiler_version %></code></pre>
+        </div>
+        <br>
+        <section>
+          <div class="d-flex justify-content-between align-items-baseline">
+            <h3><%= gettext "Decompiled contract code" %></h3>
+            <button type="button" class="button button-secondary button-sm" id="button" data-clipboard-text="<%= contract.decompiled_source_code %>" aria-label="copy decompiled contract code">
+              <%= gettext "Copy Decompiled Contract Code" %>
+            </button>
+          </div>
+          <div class="tile tile-muted">
+            <pre class="pre-decompiled pre-scrollable"><%= raw(highlight_decompiled_code(contract.decompiled_source_code)) %></pre>
+          </div>
+        </section>
+      </div>
+   <% end %>
+  </div>
+</section>

apps/block_scout_web/lib/block_scout_web/templates/admin/dashboard/index.html.eex

@@ -1 +1,36 @@
-<div data-test="administrator_dashboard"></div>
+<div data-test="administrator_dashboard">
+  <div class="container">
+    <div class="row">
+      <h2>Tasks</h2>
+    </div>
+
+    <div class="row">
+      <div class="col-sm-6">
+        <div class="card">
+          <div class="card-body">
+            <div class="card-title">
+              <h3>Create Contract Methods</h3>
+            </div>
+            <div class="card-text">
+              <p>
+                <%= gettext("For any existing contracts in the database, insert all ABI entries into the contract_methods table. Use this in case you have verified smart contracts before early March 2019 and you want other contracts with the same functions to show those ABI's as candidate matches.") %>
+              </p>
+            </div>
+
+            <button id="run-create-contract-methods" data-api_path="<%= BlockScoutWeb.AdminRouter.Helpers.create_contract_methods_path(@conn, :create_contract_methods) %>" class="btn btn-primary">
+              <%= gettext("Run") %>
+
+              <span data-loading-message class="loading-spinner-small mr-2" style="display: none;">
+                <span class="loading-spinner-block-1"></span>
+                <span class="loading-spinner-block-2"></span>
+              </span>
+
+              <span data-success-message style="display: none;"> - Success</span>
+              <span data-error-message style="display: none;"> - Failed</span>
+            </button>
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+</div>

apps/block_scout_web/lib/block_scout_web/templates/internal_transaction/_tile.html.eex

@@ -23,7 +23,7 @@
           to: block_path(BlockScoutWeb.Endpoint, :show, @internal_transaction.block_number)
         ) %>
       </span>
-      <span class="mr-2 mr-md-0 order-2" data-from-now="<%= @internal_transaction.transaction.block.timestamp %>"></span>
+      <span class="mr-2 mr-md-0 order-2" in-tile data-from-now="<%= @internal_transaction.transaction.block.timestamp %>"></span>
       <%= if assigns[:current_address] do %>
         <span class="mr-2 mr-md-0 order-0 order-md-3">
           <%= if assigns[:current_address].hash == @internal_transaction.from_address_hash do %>

apps/block_scout_web/lib/block_scout_web/templates/layout/_footer.html.eex

@@ -11,13 +11,13 @@
 
       <div class="col-md-3">
         <div class="icon-links icon-links-primary footer-social-icons">
-          <a href="https://github.com/poanetwork" rel="noreferrer" target="_blank" class="icon-link" data-toggle="tooltip" data-placement="top" title="<%= gettext("Github") %>">
+          <a href="https://github.com/poanetwork/blockscout" rel="noreferrer" target="_blank" class="icon-link" data-toggle="tooltip" data-placement="top" title="<%= gettext("Github") %>">
             <i class="fab fa-github"></i>
           </a>
-          <a href="https://www.twitter.com/PoaNetwork/" rel="noreferrer" target="_blank" class="icon-link" data-toggle="tooltip" data-placement="top" title="<%= gettext("Twitter") %>">
+          <a href="https://www.twitter.com/_blockscout/" rel="noreferrer" target="_blank" class="icon-link" data-toggle="tooltip" data-placement="top" title="<%= gettext("Twitter") %>">
             <i class="fab fa-twitter"></i>
           </a>
-          <a href="http://t.me/oraclesnetwork" rel="noreferrer" target="_blank" class="icon-link" data-toggle="tooltip" data-placement="top" title="<%= gettext("Telegram") %>">
+          <a href="https://t.me/poa_network" rel="noreferrer" target="_blank" class="icon-link" data-toggle="tooltip" data-placement="top" title="<%= gettext("Telegram") %>">
             <i class="fab fa-telegram-plane"></i>
           </a>
         </div>
@@ -90,8 +90,9 @@
     <% version = version() %>
 
     <%= unless ignore_version?(version) do %>
+      <% release_link = release_link(version) %>
       <div>
-        <%= gettext("Version") %>: <%= version %>
+        <%= gettext("Version") %>: <%= release_link %>
       </div>
     <% end %>
   </div>

apps/block_scout_web/lib/block_scout_web/templates/layout/_topnav.html.eex

@@ -79,8 +79,24 @@
       </ul>
       <div class="search-form d-lg-flex d-inline-block">
         <%= form_for @conn, chain_path(@conn, :search), [class: "form-inline my-2 my-lg-0", method: :get, enforce_utf8: false], fn f -> %>
+
         <div class="input-group">
-            <%= search_input f, :q, class: 'form-control mr-auto', placeholder: gettext("Search by address, transaction hash, or block number"), "aria-describedby": "search-icon", "aria-label": gettext("Search"), "data-test": "search_input" %>
+              <%= awesomplete(f, :q,
+                   [
+                  class: "form-control me auto",
+                  placeholder: gettext("Search by address, token symbol name, transaction hash, or block number"),
+                  "aria-describedby": "search-icon",
+                  "aria-label": gettext("Search"),
+                  "data-test": "search_input"
+                  ],
+                  [ url: "#{chain_path(@conn, :token_autocomplete)}?q=",
+                  prepop: true,
+                  minChars: 3,
+                  maxItems: 8,
+                  value: "symbol",
+                  label: "contract_address_hash",
+                  descr: "symbol"
+                  ]) %>
               <div class="input-group-append">
                 <button class="input-group-text" id="search-icon">
                   <%= render BlockScoutWeb.IconsView, "_search_icon.html" %>

apps/block_scout_web/lib/block_scout_web/templates/layout/app.html.eex

@@ -16,6 +16,21 @@
     <meta name="msapplication-config" content="<%= static_path(@conn, "/browserconfig.xml") %>">
     <meta name="theme-color" content="#ffffff">
 
+    <link rel="stylesheet" href="https://nico-amsterdam.github.io/awesomplete-util/css/awesomplete.css">
+    <script src="https://nico-amsterdam.github.io/awesomplete-util/js/awesomplete.min.js"></script>
+    <script src="https://nico-amsterdam.github.io/awesomplete-util/js/awesomplete-util.min.js"></script>
+    <style>
+      div.awesomplete {display: block}
+
+      div.awesomplete ul li p {display: block; font-size: small; margin-left: 1em}
+
+      div.awesomplete .awe-found {border: 2px solid green}
+
+      .hide-not-found div.awesomplete .awe-not-found {border-color: lightblue}
+
+      div.awesomplete .awe-not-found {border: 2px solid red}
+    </style>
+
     <%= render_existing(@view_module, "_metatags.html", assigns) || render("_default_title.html") %>
   </head>
 

apps/block_scout_web/lib/block_scout_web/templates/transaction/_tile.html.eex

@@ -35,7 +35,7 @@
       <span class="mr-2 mr-md-0 order-1">
         <%= @transaction |> block_number() |> BlockScoutWeb.RenderHelpers.render_partial() %>
       </span>
-      <span class="mr-2 mr-md-0 order-2" data-from-now="<%= block_timestamp(@transaction) %>"></span>
+      <span class="mr-2 mr-md-0 order-2" in-tile data-from-now="<%= block_timestamp(@transaction) %>"></span>
       <%= if from_or_to_address?(@transaction, assigns[:current_address]) do %>
         <span class="mr-2 mr-md-0 order-0 order-md-3">
           <%= if @transaction.from_address_hash == assigns[:current_address].hash do %>

apps/block_scout_web/lib/block_scout_web/templates/transaction/overview.html.eex

@@ -73,11 +73,10 @@
             <dt class="col-sm-3 text-muted"> <%= gettext "TX Fee" %> </dt>
             <dd class="col-sm-9">
               <%= formatted_fee(@transaction, denomination: :ether) %>
-              (<span data-wei-value=<%= fee(@transaction) %>
+
-                     <% if !empty_exchange_rate?(@exchange_rate) do %>
+              <%= if !empty_exchange_rate?(@exchange_rate) do %>
-                       data-usd-exchange-rate=<%= @exchange_rate.usd_value %>
+              (<span data-wei-value=<%= fee(@transaction) %> data-usd-exchange-rate=<%= @exchange_rate.usd_value %>></span>)
               <% end %>
-               ></span>)
             </dd>
           </dl>
           <!-- Processing Time -->
@@ -139,6 +138,42 @@
       </div>
     </div>
 
+    <%= cond do %>
+      <% erc20_token_transfer = assigns[:token_transfers] && erc20_token_transfer(@transaction, @token_transfers) -> %>
+
+        <div class="col-md-12 col-lg-4 d-flex flex-column flex-md-row flex-lg-column">
+        <!-- Value -->
+        <div class="card card-primary flex-grow-1">
+          <div class="card-body">
+            <h2 class="card-title text-white"><%= gettext "ERC-20" %> <%= gettext "Token Transfer" %></h2>
+            <div class="text-right">
+              <h3 class="text-white">
+                <span class="col-12 col-md-7 ml-3 ml-sm-0">
+                  <%= token_transfer_amount(erc20_token_transfer) %>
+                  <%= link(token_symbol(erc20_token_transfer.token), to: token_path(BlockScoutWeb.Endpoint, :show, erc20_token_transfer.token.contract_address_hash)) %>
+                </span>
+              </h3>
+            </div>
+          </div>
+        </div>
+      <% erc721_token_transfer = assigns[:token_transfers] && erc721_token_transfer(@transaction, @token_transfers) -> %>
+
+        <div class="col-md-12 col-lg-4 d-flex flex-column flex-md-row flex-lg-column">
+        <!-- Value -->
+        <div class="card card-primary flex-grow-1">
+          <div class="card-body">
+            <h2 class="card-title text-white"><%= gettext "ERC-721" %> <%= gettext "Token Transfer" %></h2>
+            <div class="text-right">
+              <h3 class="text-white">
+                <span class="col-12 col-md-7 ml-3 ml-sm-0">
+                  <%= token_transfer_amount(erc721_token_transfer) %>
+                  <%= link(token_symbol(erc721_token_transfer.token), to: token_path(BlockScoutWeb.Endpoint, :show, erc721_token_transfer.token.contract_address_hash)) %>
+                </span>
+              </h3>
+            </div>
+          </div>
+        </div>
+      <% true -> %>
         <div class="col-md-12 col-lg-4 d-flex flex-column flex-md-row flex-lg-column">
         <!-- Value -->
         <div class="card card-primary flex-grow-1">
@@ -152,7 +187,7 @@
             </div>
           </div>
       </div>
-
+    <% end %>
       <!-- Gas -->
       <div class="card flex-grow-1 ml-0 ml-md-5 ml-lg-0">
         <div class="card-body">

apps/block_scout_web/lib/block_scout_web/views/address_decompiled_contract_view.ex

@@ -0,0 +1,44 @@
+defmodule BlockScoutWeb.AddressDecompiledContractView do
+  use BlockScoutWeb, :view
+
+  @colors %{
+    "\e[95m" => "136, 0, 0",
+    # red
+    "\e[91m" => "236, 89, 58",
+    # gray
+    "\e[38;5;8m" => "111, 110, 111",
+    # green
+    "\e[32m" => "57, 115, 0",
+    # yellowgreen
+    "\e[93m" => "57, 115, 0",
+    # yellow
+    "\e[92m" => "119, 232, 81",
+    # red
+    "\e[94m" => "136, 0, 0"
+  }
+
+  def highlight_decompiled_code(code) do
+    @colors
+    |> Enum.reduce(code, fn {symbol, rgb}, acc ->
+      String.replace(acc, symbol, "<span style=\"color:rgb(#{rgb})\">")
+    end)
+    |> String.replace("\e[1m", "<span style=\"font-weight:bold\">")
+    |> String.replace("»", "&raquo;")
+    |> String.replace("\e[0m", "</span>")
+    |> add_line_numbers()
+  end
+
+  def sort_contracts_by_version(decompiled_contracts) do
+    decompiled_contracts
+    |> Enum.sort_by(& &1.decompiler_version)
+    |> Enum.reverse()
+  end
+
+  defp add_line_numbers(code) do
+    code
+    |> String.split("\n")
+    |> Enum.reduce("", fn line, acc ->
+      acc <> "<code>#{line}</code>\n"
+    end)
+  end
+end

apps/block_scout_web/lib/block_scout_web/views/address_view.ex

@@ -1,6 +1,8 @@
 defmodule BlockScoutWeb.AddressView do
   use BlockScoutWeb, :view
 
+  require Logger
+
   import BlockScoutWeb.AddressController, only: [validation_count: 1]
 
   alias BlockScoutWeb.LayoutView
@@ -14,6 +16,7 @@ defmodule BlockScoutWeb.AddressView do
   @tabs [
     "coin_balances",
     "contracts",
+    "decompiled_contracts",
     "internal_transactions",
     "read_contract",
     "tokens",
@@ -203,6 +206,11 @@ defmodule BlockScoutWeb.AddressView do
 
   def smart_contract_with_read_only_functions?(%Address{smart_contract: nil}), do: false
 
+  def has_decompiled_code?(address) do
+    address.has_decompiled_code? ||
+      (Ecto.assoc_loaded?(address.decompiled_smart_contracts) && Enum.count(address.decompiled_smart_contracts) > 0)
+  end
+
   def token_title(%Token{name: nil, contract_address_hash: contract_address_hash}) do
     contract_address_hash
     |> to_string
@@ -211,6 +219,12 @@ defmodule BlockScoutWeb.AddressView do
 
   def token_title(%Token{name: name, symbol: symbol}), do: "#{name} (#{symbol})"
 
+  def incoming_transaction_count(%Address{} = address) do
+    count = Chain.address_to_incoming_transaction_count(address)
+
+    Cldr.Number.to_string!(count, format: "#,###")
+  end
+
   def trimmed_hash(%Hash{} = hash) do
     string_hash = to_string(hash)
     "#{String.slice(string_hash, 0..5)}–#{String.slice(string_hash, -6..-1)}"
@@ -234,6 +248,12 @@ defmodule BlockScoutWeb.AddressView do
     address.contracts_creation_transaction.from_address_hash
   end
 
+  def from_address_hash(address) do
+    Logger.error(fn -> ["Found a contract with no creator: ", to_string(address)] end)
+
+    nil
+  end
+
   defp matching_address_check(%Address{hash: hash} = current_address, %Address{hash: hash}, contract?, truncate) do
     [
       view_module: __MODULE__,
@@ -274,6 +294,7 @@ defmodule BlockScoutWeb.AddressView do
   defp tab_name(["transactions"]), do: gettext("Transactions")
   defp tab_name(["internal_transactions"]), do: gettext("Internal Transactions")
   defp tab_name(["contracts"]), do: gettext("Code")
+  defp tab_name(["decompiled_contracts"]), do: gettext("Decompiled Code")
   defp tab_name(["read_contract"]), do: gettext("Read Contract")
   defp tab_name(["coin_balances"]), do: gettext("Coin Balance History")
   defp tab_name(["validations"]), do: gettext("Blocks Validated")

apps/block_scout_web/lib/block_scout_web/views/api/rpc/address_view.ex

@@ -3,8 +3,13 @@ defmodule BlockScoutWeb.API.RPC.AddressView do
 
   alias BlockScoutWeb.API.RPC.RPCView
 
+  def render("listaccounts.json", %{accounts: accounts}) do
+    accounts = Enum.map(accounts, &prepare_account/1)
+    RPCView.render("show.json", data: accounts)
+  end
+
   def render("balance.json", %{addresses: [address]}) do
-    RPCView.render("show.json", data: "#{address.fetched_coin_balance.value}")
+    RPCView.render("show.json", data: balance(address))
   end
 
   def render("balance.json", assigns) do
@@ -16,7 +21,7 @@ defmodule BlockScoutWeb.API.RPC.AddressView do
       Enum.map(addresses, fn address ->
         %{
           "account" => "#{address.hash}",
-          "balance" => "#{address.fetched_coin_balance.value}"
+          "balance" => balance(address)
         }
       end)
 
@@ -56,6 +61,13 @@ defmodule BlockScoutWeb.API.RPC.AddressView do
     RPCView.render("error.json", assigns)
   end
 
+  defp prepare_account(address) do
+    %{
+      "balance" => to_string(address.fetched_coin_balance.value),
+      "address" => to_string(address.hash)
+    }
+  end
+
   defp prepare_transaction(transaction) do
     %{
       "blockNumber" => "#{transaction.block_number}",
@@ -145,4 +157,8 @@ defmodule BlockScoutWeb.API.RPC.AddressView do
       "symbol" => token.symbol
     }
   end
+
+  defp balance(address) do
+    address.fetched_coin_balance && address.fetched_coin_balance.value && "#{address.fetched_coin_balance.value}"
+  end
 end

apps/block_scout_web/lib/block_scout_web/views/api/rpc/contract_view.ex

@@ -2,40 +2,108 @@ defmodule BlockScoutWeb.API.RPC.ContractView do
   use BlockScoutWeb, :view
 
   alias BlockScoutWeb.API.RPC.RPCView
+  alias Explorer.Chain.{Address, DecompiledSmartContract, SmartContract}
+
+  def render("listcontracts.json", %{contracts: contracts}) do
+    contracts = Enum.map(contracts, &prepare_contract/1)
+
+    RPCView.render("show.json", data: contracts)
+  end
 
   def render("getabi.json", %{abi: abi}) do
     RPCView.render("show.json", data: Jason.encode!(abi))
   end
 
-  def render("getsourcecode.json", %{contract: contract}) do
+  def render("getsourcecode.json", %{contract: contract, address_hash: address_hash}) do
-    RPCView.render("show.json", data: prepare_contract(contract))
+    RPCView.render("show.json", data: [prepare_source_code_contract(contract, address_hash)])
   end
 
   def render("error.json", assigns) do
     RPCView.render("error.json", assigns)
   end
 
-  defp prepare_contract(nil) do
+  def render("verify.json", %{contract: contract, address_hash: address_hash}) do
-    [
+    RPCView.render("show.json", data: prepare_source_code_contract(contract, address_hash))
+  end
+
+  defp prepare_source_code_contract(nil, address_hash) do
     %{
+      "Address" => to_string(address_hash),
       "SourceCode" => "",
       "ABI" => "Contract source code not verified",
       "ContractName" => "",
       "CompilerVersion" => "",
+      "DecompiledSourceCode" => "",
+      "DecompilerVersion" => "",
       "OptimizationUsed" => ""
     }
-    ]
   end
 
-  defp prepare_contract(contract) do
+  defp prepare_source_code_contract(contract, _) do
-    [
+    decompiled_smart_contract = latest_decompiled_smart_contract(contract.decompiled_smart_contracts)
+
     %{
+      "Address" => to_string(contract.address_hash),
       "SourceCode" => contract.contract_source_code,
       "ABI" => Jason.encode!(contract.abi),
       "ContractName" => contract.name,
+      "DecompiledSourceCode" => decompiled_source_code(decompiled_smart_contract),
+      "DecompilerVersion" => decompiler_version(decompiled_smart_contract),
       "CompilerVersion" => contract.compiler_version,
       "OptimizationUsed" => if(contract.optimization, do: "1", else: "0")
     }
-    ]
   end
+
+  defp prepare_contract(%Address{
+         hash: hash,
+         smart_contract: nil,
+         decompiled_smart_contracts: decompiled_smart_contracts
+       }) do
+    decompiled_smart_contract = latest_decompiled_smart_contract(decompiled_smart_contracts)
+
+    %{
+      "Address" => to_string(hash),
+      "SourceCode" => "",
+      "ABI" => "Contract source code not verified",
+      "ContractName" => "",
+      "DecompiledSourceCode" => decompiled_source_code(decompiled_smart_contract),
+      "DecompilerVersion" => decompiler_version(decompiled_smart_contract),
+      "CompilerVersion" => "",
+      "OptimizationUsed" => ""
+    }
+  end
+
+  defp prepare_contract(%Address{
+         hash: hash,
+         smart_contract: %SmartContract{} = contract,
+         decompiled_smart_contracts: decompiled_smart_contracts
+       }) do
+    decompiled_smart_contract = latest_decompiled_smart_contract(decompiled_smart_contracts)
+
+    %{
+      "Address" => to_string(hash),
+      "SourceCode" => contract.contract_source_code,
+      "ABI" => Jason.encode!(contract.abi),
+      "ContractName" => contract.name,
+      "DecompiledSourceCode" => decompiled_source_code(decompiled_smart_contract),
+      "DecompilerVersion" => decompiler_version(decompiled_smart_contract),
+      "CompilerVersion" => contract.compiler_version,
+      "OptimizationUsed" => if(contract.optimization, do: "1", else: "0")
+    }
+  end
+
+  defp latest_decompiled_smart_contract([]), do: nil
+
+  defp latest_decompiled_smart_contract(contracts) do
+    Enum.max_by(contracts, fn contract -> DateTime.to_unix(contract.inserted_at) end)
+  end
+
+  defp decompiled_source_code(nil), do: "Contract source code not decompiled."
+
+  defp decompiled_source_code(%DecompiledSmartContract{decompiled_source_code: decompiled_source_code}) do
+    decompiled_source_code
+  end
+
+  defp decompiler_version(nil), do: ""
+  defp decompiler_version(%DecompiledSmartContract{decompiler_version: decompiler_version}), do: decompiler_version
 end

apps/block_scout_web/lib/block_scout_web/views/api/rpc/transaction_view.ex

@@ -3,8 +3,13 @@ defmodule BlockScoutWeb.API.RPC.TransactionView do
 
   alias BlockScoutWeb.API.RPC.RPCView
 
-  def render("gettxinfo.json", %{transaction: transaction, block_height: block_height, logs: logs}) do
+  def render("gettxinfo.json", %{
-    data = prepare_transaction(transaction, block_height, logs)
+        transaction: transaction,
+        block_height: block_height,
+        logs: logs,
+        next_page_params: next_page_params
+      }) do
+    data = prepare_transaction(transaction, block_height, logs, next_page_params)
     RPCView.render("show.json", data: data)
   end
 
@@ -50,7 +55,7 @@ defmodule BlockScoutWeb.API.RPC.TransactionView do
     }
   end
 
-  defp prepare_transaction(transaction, block_height, logs) do
+  defp prepare_transaction(transaction, block_height, logs, next_page_params) do
     %{
       "hash" => "#{transaction.hash}",
       "timeStamp" => "#{DateTime.to_unix(transaction.block.timestamp)}",
@@ -63,7 +68,8 @@ defmodule BlockScoutWeb.API.RPC.TransactionView do
       "input" => "#{transaction.input}",
       "gasLimit" => "#{transaction.gas}",
       "gasUsed" => "#{transaction.gas_used}",
-      "logs" => Enum.map(logs, &prepare_log/1)
+      "logs" => Enum.map(logs, &prepare_log/1),
+      "next_page_params" => next_page_params
     }
   end
 

apps/block_scout_web/lib/block_scout_web/views/layout_view.ex

@@ -76,6 +76,16 @@ defmodule BlockScoutWeb.LayoutView do
     BlockScoutWeb.version()
   end
 
+  def release_link(version) do
+    release_link = Application.get_env(:block_scout_web, :release_link)
+
+    if release_link == "" || release_link == nil do
+      version
+    else
+      html_escape({:safe, "<a href=\"#{release_link}\" class=\"footer-link\" target=\"_blank\">#{version}</a>"})
+    end
+  end
+
   def ignore_version?("unknown"), do: true
   def ignore_version?(_), do: false
 

apps/block_scout_web/lib/block_scout_web/views/transaction_view.ex

@@ -1,15 +1,17 @@
 defmodule BlockScoutWeb.TransactionView do
   use BlockScoutWeb, :view
 
+  alias ABI.TypeDecoder
   alias BlockScoutWeb.{AddressView, BlockView, TabHelpers}
   alias Cldr.Number
   alias Explorer.Chain
   alias Explorer.Chain.Block.Reward
-  alias Explorer.Chain.{Address, Block, InternalTransaction, Transaction, Wei}
+  alias Explorer.Chain.{Address, Block, InternalTransaction, TokenTransfer, Transaction, Wei}
   alias Explorer.ExchangeRates.Token
   alias Timex.Duration
 
   import BlockScoutWeb.Gettext
+  import BlockScoutWeb.Tokens.Helpers
 
   @tabs ["token_transfers", "internal_transactions", "logs"]
 
@@ -31,6 +33,85 @@ defmodule BlockScoutWeb.TransactionView do
 
   def value_transfer?(_), do: false
 
+  def erc20_token_transfer(
+        %Transaction{
+          status: :ok,
+          created_contract_address_hash: nil,
+          input: input,
+          value: value
+        },
+        token_transfers
+      ) do
+    zero_wei = %Wei{value: Decimal.new(0)}
+
+    case {to_string(input), value} do
+      {unquote(TokenTransfer.transfer_function_signature()) <> params, ^zero_wei} ->
+        types = [:address, {:uint, 256}]
+
+        [address, value] = decode_params(params, types)
+
+        decimal_value = Decimal.new(value)
+
+        Enum.find(token_transfers, fn token_transfer ->
+          token_transfer.to_address_hash.bytes == address && token_transfer.amount == decimal_value
+        end)
+
+      _ ->
+        nil
+    end
+  rescue
+    _ -> nil
+  end
+
+  def erc20_token_transfer(_, _) do
+    nil
+  end
+
+  def erc721_token_transfer(
+        %Transaction{
+          status: :ok,
+          created_contract_address_hash: nil,
+          input: input,
+          value: value
+        },
+        token_transfers
+      ) do
+    zero_wei = %Wei{value: Decimal.new(0)}
+
+    # https://github.com/OpenZeppelin/openzeppelin-solidity/blob/master/contracts/token/ERC721/ERC721.sol#L35
+    {from_address, to_address} =
+      case {to_string(input), value} do
+        # transferFrom(address,address,uint256)
+        {"0x23b872dd" <> params, ^zero_wei} ->
+          types = [:address, :address, {:uint, 256}]
+          [from_address, to_address, _value] = decode_params(params, types)
+          {from_address, to_address}
+
+        # safeTransferFrom(address,address,uint256)
+        {"0x42842e0e" <> params, ^zero_wei} ->
+          types = [:address, :address, {:uint, 256}]
+          [from_address, to_address, _value] = decode_params(params, types)
+          {from_address, to_address}
+
+        # safeTransferFrom(address,address,uint256,bytes)
+        {"0xb88d4fde" <> params, ^zero_wei} ->
+          types = [:address, :address, {:uint, 256}, :bytes]
+          [from_address, to_address, _value, _data] = decode_params(params, types)
+          {from_address, to_address}
+
+        _ ->
+          nil
+      end
+
+    Enum.find(token_transfers, fn token_transfer ->
+      token_transfer.from_address_hash.bytes == from_address && token_transfer.to_address_hash.bytes == to_address
+    end)
+  rescue
+    _ -> nil
+  end
+
+  def erc721_token_transfer(_, _), do: nil
+
   def processing_time_duration(%Transaction{block: nil}) do
     :pending
   end
@@ -257,4 +338,10 @@ defmodule BlockScoutWeb.TransactionView do
   defp tab_name(["token_transfers"]), do: gettext("Token Transfers")
   defp tab_name(["internal_transactions"]), do: gettext("Internal Transactions")
   defp tab_name(["logs"]), do: gettext("Logs")
+
+  defp decode_params(params, types) do
+    params
+    |> Base.decode16!(case: :mixed)
+    |> TypeDecoder.decode_raw(types)
+  end
 end

apps/block_scout_web/mix.exs

@@ -15,7 +15,7 @@ defmodule BlockScoutWeb.Mixfile do
         plt_add_deps: :transitive,
         ignore_warnings: "../../.dialyzer-ignore"
       ],
-      elixir: "~> 1.6",
+      elixir: "~> 1.8",
       elixirc_paths: elixirc_paths(Mix.env()),
       lockfile: "../../mix.lock",
       package: package(),
@@ -122,13 +122,14 @@ defmodule BlockScoutWeb.Mixfile do
       # Tracing
       {:spandex, github: "spandex-project/spandex", branch: "allow-setting-trace-key", override: true},
       # `:spandex` integration with Datadog
-      {:spandex_datadog, "~> 0.3.1"},
+      {:spandex_datadog, "~> 0.4.0"},
       # `:spandex` tracing of `:phoenix`
       {:spandex_phoenix, "~> 0.3.1"},
       {:timex, "~> 3.4"},
-      {:wallaby, "~> 0.20", only: [:test], runtime: false},
+      {:wallaby, "~> 0.22", only: [:test], runtime: false},
       # `:cowboy` `~> 2.0` and Phoenix 1.4 compatibility
-      {:wobserver, "~> 0.2.0", github: "KronicDeth/wobserver", ref: "99683a936c75c0a94ebb884cef019f7ed0b97112"}
+      {:wobserver, "~> 0.2.0", github: "KronicDeth/wobserver", ref: "99683a936c75c0a94ebb884cef019f7ed0b97112"},
+      {:phoenix_form_awesomplete, "~> 0.1.4"}
     ]
   end
 

apps/block_scout_web/priv/gettext/default.pot

@@ -49,7 +49,7 @@ msgid "%{subnetwork} Explorer - BlockScout"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:128
+#: lib/block_scout_web/views/transaction_view.ex:209
 msgid "(Awaiting internal transactions for status)"
 msgstr ""
 
@@ -62,7 +62,7 @@ msgid "(query)"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/app.html.eex:31
+#: lib/block_scout_web/templates/layout/app.html.eex:46
 msgid "- We're indexing this chain right now. Some of the counts may be inaccurate."
 msgstr ""
 
@@ -99,7 +99,7 @@ msgstr ""
 #, elixir-format
 #: lib/block_scout_web/templates/address/_validator_metadata_modal.html.eex:16
 #: lib/block_scout_web/templates/transaction_log/index.html.eex:15
-#: lib/block_scout_web/views/address_view.ex:98
+#: lib/block_scout_web/views/address_view.ex:101
 msgid "Address"
 msgstr ""
 
@@ -155,7 +155,7 @@ msgid "Block Height: %{height}"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/app.html.eex:46
+#: lib/block_scout_web/templates/layout/app.html.eex:61
 msgid "Block Mined, awaiting import..."
 msgstr ""
 
@@ -165,7 +165,7 @@ msgid "Block Number"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:20
+#: lib/block_scout_web/views/transaction_view.ex:22
 msgid "Block Pending"
 msgstr ""
 
@@ -182,22 +182,22 @@ msgid "Blocks"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/app.html.eex:45
+#: lib/block_scout_web/templates/layout/app.html.eex:60
 msgid "Blocks Indexed"
 msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:40
-#: lib/block_scout_web/templates/address/_tabs.html.eex:103
+#: lib/block_scout_web/templates/address/_tabs.html.eex:114
-#: lib/block_scout_web/templates/address/overview.html.eex:51
+#: lib/block_scout_web/templates/address/overview.html.eex:59
 #: lib/block_scout_web/templates/address_validation/index.html.eex:30
 #: lib/block_scout_web/templates/address_validation/index.html.eex:57
-#: lib/block_scout_web/views/address_view.ex:279
+#: lib/block_scout_web/views/address_view.ex:300
 msgid "Blocks Validated"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:125
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:135
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:24
 msgid "Cancel"
 msgstr ""
@@ -209,8 +209,8 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_validator_metadata_modal.html.eex:37
-#: lib/block_scout_web/templates/address/overview.html.eex:89
+#: lib/block_scout_web/templates/address/overview.html.eex:103
-#: lib/block_scout_web/templates/address/overview.html.eex:97
+#: lib/block_scout_web/templates/address/overview.html.eex:111
 #: lib/block_scout_web/templates/tokens/overview/_details.html.eex:91
 #: lib/block_scout_web/templates/tokens/overview/_details.html.eex:99
 msgid "Close"
@@ -218,11 +218,11 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:53
-#: lib/block_scout_web/templates/address/_tabs.html.eex:113
+#: lib/block_scout_web/templates/address/_tabs.html.eex:124
 #: lib/block_scout_web/templates/address_validation/index.html.eex:39
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:119
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:141
-#: lib/block_scout_web/views/address_view.ex:276
+#: lib/block_scout_web/views/address_view.ex:296
 msgid "Code"
 msgstr ""
 
@@ -266,24 +266,24 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address_contract_verification/new.html.eex:13
-#: lib/block_scout_web/views/address_view.ex:96
+#: lib/block_scout_web/views/address_view.ex:99
 msgid "Contract Address"
 msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/transaction/_pending_tile.html.eex:16
-#: lib/block_scout_web/views/address_view.ex:36
+#: lib/block_scout_web/views/address_view.ex:39
-#: lib/block_scout_web/views/address_view.ex:70
+#: lib/block_scout_web/views/address_view.ex:73
 msgid "Contract Address Pending"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:205
+#: lib/block_scout_web/views/transaction_view.ex:286
 msgid "Contract Call"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:204
+#: lib/block_scout_web/views/transaction_view.ex:285
 msgid "Contract Creation"
 msgstr ""
 
@@ -328,7 +328,7 @@ msgid "Copy Txn Hash"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/overview.html.eex:58
+#: lib/block_scout_web/templates/address/overview.html.eex:69
 msgid "Created by"
 msgstr ""
 
@@ -367,32 +367,32 @@ msgid "ETH"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:47
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:57
 msgid "Enter the Solidity Contract Code below"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/_balance_card.html.eex:32
+#: lib/block_scout_web/templates/address/_balance_card.html.eex:28
 msgid "Error trying to fetch balances."
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:132
+#: lib/block_scout_web/views/transaction_view.ex:213
 msgid "Error: %{reason}"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:130
+#: lib/block_scout_web/views/transaction_view.ex:211
 msgid "Error: (Awaiting internal transactions for reason)"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/_balance_card.html.eex:16
+#: lib/block_scout_web/templates/address/_balance_card.html.eex:13
 #: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:16
-#: lib/block_scout_web/templates/layout/app.html.eex:51
+#: lib/block_scout_web/templates/layout/app.html.eex:66
 #: lib/block_scout_web/templates/transaction/_pending_tile.html.eex:20
 #: lib/block_scout_web/templates/transaction/_tile.html.eex:27
-#: lib/block_scout_web/templates/transaction/overview.html.eex:146
+#: lib/block_scout_web/templates/transaction/overview.html.eex:181
 #: lib/block_scout_web/views/wei_helpers.ex:72
 msgid "Ether"
 msgstr ""
@@ -408,7 +408,7 @@ msgid "Execute"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/_balance_card.html.eex:28
+#: lib/block_scout_web/templates/address/_balance_card.html.eex:24
 msgid "Fetching tokens..."
 msgstr ""
 
@@ -431,7 +431,7 @@ msgid "GET"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:159
+#: lib/block_scout_web/templates/transaction/overview.html.eex:194
 msgid "Gas"
 msgstr ""
 
@@ -472,7 +472,7 @@ msgid "IN"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/app.html.eex:47
+#: lib/block_scout_web/templates/layout/app.html.eex:62
 msgid "Indexing Tokens"
 msgstr ""
 
@@ -488,14 +488,14 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:21
-#: lib/block_scout_web/templates/address/_tabs.html.eex:90
+#: lib/block_scout_web/templates/address/_tabs.html.eex:101
 #: lib/block_scout_web/templates/address_internal_transaction/index.html.eex:58
 #: lib/block_scout_web/templates/address_validation/index.html.eex:24
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:14
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:43
 #: lib/block_scout_web/templates/transaction_internal_transaction/index.html.eex:10
-#: lib/block_scout_web/views/address_view.ex:275
+#: lib/block_scout_web/views/address_view.ex:295
-#: lib/block_scout_web/views/transaction_view.ex:258
+#: lib/block_scout_web/views/transaction_view.ex:339
 msgid "Internal Transactions"
 msgstr ""
 
@@ -508,12 +508,12 @@ msgid "Inventory"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/app.html.eex:48
+#: lib/block_scout_web/templates/layout/app.html.eex:63
 msgid "Less than"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:171
+#: lib/block_scout_web/templates/transaction/overview.html.eex:206
 msgid "Limit"
 msgstr ""
 
@@ -521,19 +521,19 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:21
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:48
 #: lib/block_scout_web/templates/transaction_log/index.html.eex:10
-#: lib/block_scout_web/views/transaction_view.ex:259
+#: lib/block_scout_web/views/transaction_view.ex:340
 msgid "Logs"
 msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/chain/show.html.eex:28
-#: lib/block_scout_web/templates/layout/app.html.eex:49
+#: lib/block_scout_web/templates/layout/app.html.eex:64
-#: lib/block_scout_web/views/address_view.ex:118
+#: lib/block_scout_web/views/address_view.ex:121
 msgid "Market Cap"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:113
+#: lib/block_scout_web/views/transaction_view.ex:194
 msgid "Max of"
 msgstr ""
 
@@ -603,7 +603,7 @@ msgid "Next Page"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:35
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:40
 msgid "No"
 msgstr ""
 
@@ -661,8 +661,8 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:44
-#: lib/block_scout_web/views/transaction_view.ex:127
+#: lib/block_scout_web/views/transaction_view.ex:208
-#: lib/block_scout_web/views/transaction_view.ex:161
+#: lib/block_scout_web/views/transaction_view.ex:242
 msgid "Pending"
 msgstr ""
 
@@ -679,13 +679,13 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/chain/show.html.eex:21
-#: lib/block_scout_web/templates/layout/app.html.eex:50
+#: lib/block_scout_web/templates/layout/app.html.eex:65
 msgid "Price"
 msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/overview.html.eex:13
-#: lib/block_scout_web/templates/address/overview.html.eex:88
+#: lib/block_scout_web/templates/address/overview.html.eex:102
 #: lib/block_scout_web/templates/tokens/overview/_details.html.eex:13
 #: lib/block_scout_web/templates/tokens/overview/_details.html.eex:13
 #: lib/block_scout_web/templates/tokens/overview/_details.html.eex:90
@@ -698,11 +698,11 @@ msgid "Query"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/_tabs.html.eex:65
+#: lib/block_scout_web/templates/address/_tabs.html.eex:76
-#: lib/block_scout_web/templates/address/_tabs.html.eex:122
+#: lib/block_scout_web/templates/address/_tabs.html.eex:142
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:33
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:75
-#: lib/block_scout_web/views/address_view.ex:277
+#: lib/block_scout_web/views/address_view.ex:298
 #: lib/block_scout_web/views/tokens/overview_view.ex:37
 msgid "Read Contract"
 msgstr ""
@@ -713,7 +713,7 @@ msgid "Request URL"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:123
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:133
 msgid "Reset"
 msgstr ""
 
@@ -728,16 +728,11 @@ msgid "Responses"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:83
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:89
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:90
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:106
 msgid "Search"
 msgstr ""
 
-#, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:83
-msgid "Search by address, transaction hash, or block number"
-msgstr ""
-
 #, elixir-format
 #:
 #: lib/block_scout_web/templates/address_token_balance/_token_balances.html.eex:28
@@ -767,7 +762,7 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/transaction/_emission_reward_tile.html.eex:8
-#: lib/block_scout_web/views/transaction_view.ex:129
+#: lib/block_scout_web/views/transaction_view.ex:210
 msgid "Success"
 msgstr ""
 
@@ -877,8 +872,10 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/tokens/transfer/_token_transfer.html.eex:4
+#: lib/block_scout_web/templates/transaction/overview.html.eex:148
+#: lib/block_scout_web/templates/transaction/overview.html.eex:165
 #: lib/block_scout_web/templates/transaction_token_transfer/_token_transfer.html.eex:4
-#: lib/block_scout_web/views/transaction_view.ex:203
+#: lib/block_scout_web/views/transaction_view.ex:284
 msgid "Token Transfer"
 msgstr ""
 
@@ -890,18 +887,18 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:36
 #: lib/block_scout_web/templates/transaction_token_transfer/index.html.eex:10
 #: lib/block_scout_web/views/tokens/overview_view.ex:35
-#: lib/block_scout_web/views/transaction_view.ex:257
+#: lib/block_scout_web/views/transaction_view.ex:338
 msgid "Token Transfers"
 msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:13
-#: lib/block_scout_web/templates/address/_tabs.html.eex:85
+#: lib/block_scout_web/templates/address/_tabs.html.eex:96
 #: lib/block_scout_web/templates/address_token/index.html.eex:11
 #: lib/block_scout_web/templates/address_token_transfer/index.html.eex:12
 #: lib/block_scout_web/templates/address_validation/index.html.eex:11
 #: lib/block_scout_web/templates/address_validation/index.html.eex:19
-#: lib/block_scout_web/views/address_view.ex:273
+#: lib/block_scout_web/views/address_view.ex:293
 msgid "Tokens"
 msgstr ""
 
@@ -931,7 +928,7 @@ msgid "Total transactions"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:206
+#: lib/block_scout_web/views/transaction_view.ex:287
 msgid "Transaction"
 msgstr ""
 
@@ -953,7 +950,7 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:5
-#: lib/block_scout_web/templates/address/_tabs.html.eex:80
+#: lib/block_scout_web/templates/address/_tabs.html.eex:91
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:53
 #: lib/block_scout_web/templates/address_validation/index.html.eex:14
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:13
@@ -962,7 +959,7 @@ msgstr ""
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:35
 #: lib/block_scout_web/templates/chain/show.html.eex:93
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:35
-#: lib/block_scout_web/views/address_view.ex:274
+#: lib/block_scout_web/views/address_view.ex:294
 msgid "Transactions"
 msgstr ""
 
@@ -998,7 +995,7 @@ msgid "Unique Token"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:164
+#: lib/block_scout_web/templates/transaction/overview.html.eex:199
 msgid "Used"
 msgstr ""
 
@@ -1019,7 +1016,7 @@ msgid "Validations"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:146
+#: lib/block_scout_web/templates/transaction/overview.html.eex:181
 msgid "Value"
 msgstr ""
 
@@ -1029,7 +1026,7 @@ msgid "Verify & Publish"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:122
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:132
 msgid "Verify & publish"
 msgstr ""
 
@@ -1089,12 +1086,12 @@ msgid "Wei"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:40
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:45
 msgid "Yes"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/overview.html.eex:64
+#: lib/block_scout_web/templates/address/overview.html.eex:75
 msgid "at"
 msgstr ""
 
@@ -1170,7 +1167,7 @@ msgid "Loading..."
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:120
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:130
 msgid "Loading...."
 msgstr ""
 
@@ -1215,7 +1212,7 @@ msgid "This API is provided for developers transitioning their applications from
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:100
+#: lib/block_scout_web/templates/transaction/overview.html.eex:99
 msgid "Raw Input"
 msgstr ""
 
@@ -1404,8 +1401,8 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:30
-#: lib/block_scout_web/templates/address/_tabs.html.eex:96
+#: lib/block_scout_web/templates/address/_tabs.html.eex:107
-#: lib/block_scout_web/views/address_view.ex:278
+#: lib/block_scout_web/views/address_view.ex:299
 msgid "Coin Balance History"
 msgstr ""
 
@@ -1557,7 +1554,7 @@ msgid "Test Networks"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_footer.html.eex:94
+#: lib/block_scout_web/templates/layout/_footer.html.eex:95
 msgid "Version"
 msgstr ""
 
@@ -1587,87 +1584,163 @@ msgid "Genesis Block"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:66
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:76
 msgid "1 Library Address"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:61
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:71
 msgid "1 Library Name"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:76
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:86
 msgid "2 Library Address"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:71
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:81
 msgid "2 Library Name"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:86
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:96
 msgid "3 Library Address"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:81
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:91
 msgid "3 Library Name"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:96
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:106
 msgid "4 Library Address"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:91
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:101
 msgid "4 Library Name"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:106
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:116
 msgid "5 Library Address"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:101
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:111
 msgid "5 Library Name"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:58
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:68
 msgid "Contract Libraries"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:53
+#: lib/block_scout_web/templates/address/overview.html.eex:52
-msgid "Enter contructor arguments if the contract had any"
-msgstr ""
-
-#, elixir-format
-#: lib/block_scout_web/templates/address/overview.html.eex:44
 msgid "Last Balance Update: Block #"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/overview.html.eex:41
+#: lib/block_scout_web/templates/address/overview.html.eex:48
 msgid "Transactions Sent"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:91
+#: lib/block_scout_web/templates/transaction/overview.html.eex:90
 msgid "Transaction Speed"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:122
+#: lib/block_scout_web/templates/transaction/overview.html.eex:121
-#: lib/block_scout_web/templates/transaction/overview.html.eex:127
+#: lib/block_scout_web/templates/transaction/overview.html.eex:126
 msgid "Hex (Default)"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:131
+#: lib/block_scout_web/templates/transaction/overview.html.eex:130
 msgid "UTF-8"
 msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/admin/dashboard/index.html.eex:16
+msgid "For any existing contracts in the database, insert all ABI entries into the contract_methods table. Use this in case you have verified smart contracts before early March 2019 and you want other contracts with the same functions to show those ABI's as candidate matches."
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/admin/dashboard/index.html.eex:21
+msgid "Run"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address/overview.html.eex:39
+msgid ">="
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address/overview.html.eex:43
+msgid "Incoming Transactions"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address/overview.html.eex:83
+msgid "Error: Could not determine contract creator."
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:87
+msgid "Search by address, token symbol name, transaction hash, or block number"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:31
+msgid "EVM Version"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:63
+msgid "Enter constructor arguments if the contract had any"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:20
+msgid "Copy Decompiled Contract Code"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/address_view.ex:297
+msgid "Decompiled Code"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address/_tabs.html.eex:67
+#: lib/block_scout_web/templates/address/_tabs.html.eex:134
+msgid "Decompiled code"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:18
+msgid "Decompiled contract code"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:11
+msgid "Decompiler version"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:52
+msgid "Optimization runs"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/transaction/overview.html.eex:148
+msgid "ERC-20"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/transaction/overview.html.eex:165
+msgid "ERC-721"
+msgstr ""

apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po

@@ -49,7 +49,7 @@ msgid "%{subnetwork} Explorer - BlockScout"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:128
+#: lib/block_scout_web/views/transaction_view.ex:209
 msgid "(Awaiting internal transactions for status)"
 msgstr ""
 
@@ -62,7 +62,7 @@ msgid "(query)"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/app.html.eex:31
+#: lib/block_scout_web/templates/layout/app.html.eex:46
 msgid "- We're indexing this chain right now. Some of the counts may be inaccurate."
 msgstr ""
 
@@ -99,7 +99,7 @@ msgstr ""
 #, elixir-format
 #: lib/block_scout_web/templates/address/_validator_metadata_modal.html.eex:16
 #: lib/block_scout_web/templates/transaction_log/index.html.eex:15
-#: lib/block_scout_web/views/address_view.ex:98
+#: lib/block_scout_web/views/address_view.ex:101
 msgid "Address"
 msgstr ""
 
@@ -155,7 +155,7 @@ msgid "Block Height: %{height}"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/app.html.eex:46
+#: lib/block_scout_web/templates/layout/app.html.eex:61
 msgid "Block Mined, awaiting import..."
 msgstr ""
 
@@ -165,7 +165,7 @@ msgid "Block Number"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:20
+#: lib/block_scout_web/views/transaction_view.ex:22
 msgid "Block Pending"
 msgstr ""
 
@@ -182,22 +182,22 @@ msgid "Blocks"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/app.html.eex:45
+#: lib/block_scout_web/templates/layout/app.html.eex:60
 msgid "Blocks Indexed"
 msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:40
-#: lib/block_scout_web/templates/address/_tabs.html.eex:103
+#: lib/block_scout_web/templates/address/_tabs.html.eex:114
-#: lib/block_scout_web/templates/address/overview.html.eex:51
+#: lib/block_scout_web/templates/address/overview.html.eex:59
 #: lib/block_scout_web/templates/address_validation/index.html.eex:30
 #: lib/block_scout_web/templates/address_validation/index.html.eex:57
-#: lib/block_scout_web/views/address_view.ex:279
+#: lib/block_scout_web/views/address_view.ex:300
 msgid "Blocks Validated"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:125
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:135
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:24
 msgid "Cancel"
 msgstr ""
@@ -209,8 +209,8 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_validator_metadata_modal.html.eex:37
-#: lib/block_scout_web/templates/address/overview.html.eex:89
+#: lib/block_scout_web/templates/address/overview.html.eex:103
-#: lib/block_scout_web/templates/address/overview.html.eex:97
+#: lib/block_scout_web/templates/address/overview.html.eex:111
 #: lib/block_scout_web/templates/tokens/overview/_details.html.eex:91
 #: lib/block_scout_web/templates/tokens/overview/_details.html.eex:99
 msgid "Close"
@@ -218,11 +218,11 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:53
-#: lib/block_scout_web/templates/address/_tabs.html.eex:113
+#: lib/block_scout_web/templates/address/_tabs.html.eex:124
 #: lib/block_scout_web/templates/address_validation/index.html.eex:39
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:119
 #: lib/block_scout_web/templates/api_docs/_action_tile.html.eex:141
-#: lib/block_scout_web/views/address_view.ex:276
+#: lib/block_scout_web/views/address_view.ex:296
 msgid "Code"
 msgstr ""
 
@@ -266,24 +266,24 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address_contract_verification/new.html.eex:13
-#: lib/block_scout_web/views/address_view.ex:96
+#: lib/block_scout_web/views/address_view.ex:99
 msgid "Contract Address"
 msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/transaction/_pending_tile.html.eex:16
-#: lib/block_scout_web/views/address_view.ex:36
+#: lib/block_scout_web/views/address_view.ex:39
-#: lib/block_scout_web/views/address_view.ex:70
+#: lib/block_scout_web/views/address_view.ex:73
 msgid "Contract Address Pending"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:205
+#: lib/block_scout_web/views/transaction_view.ex:286
 msgid "Contract Call"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:204
+#: lib/block_scout_web/views/transaction_view.ex:285
 msgid "Contract Creation"
 msgstr ""
 
@@ -328,7 +328,7 @@ msgid "Copy Txn Hash"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/overview.html.eex:58
+#: lib/block_scout_web/templates/address/overview.html.eex:69
 msgid "Created by"
 msgstr ""
 
@@ -367,32 +367,32 @@ msgid "ETH"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:47
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:57
 msgid "Enter the Solidity Contract Code below"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/_balance_card.html.eex:32
+#: lib/block_scout_web/templates/address/_balance_card.html.eex:28
 msgid "Error trying to fetch balances."
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:132
+#: lib/block_scout_web/views/transaction_view.ex:213
 msgid "Error: %{reason}"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:130
+#: lib/block_scout_web/views/transaction_view.ex:211
 msgid "Error: (Awaiting internal transactions for reason)"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/_balance_card.html.eex:16
+#: lib/block_scout_web/templates/address/_balance_card.html.eex:13
 #: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:16
-#: lib/block_scout_web/templates/layout/app.html.eex:51
+#: lib/block_scout_web/templates/layout/app.html.eex:66
 #: lib/block_scout_web/templates/transaction/_pending_tile.html.eex:20
 #: lib/block_scout_web/templates/transaction/_tile.html.eex:27
-#: lib/block_scout_web/templates/transaction/overview.html.eex:146
+#: lib/block_scout_web/templates/transaction/overview.html.eex:181
 #: lib/block_scout_web/views/wei_helpers.ex:72
 msgid "Ether"
 msgstr "POA"
@@ -408,7 +408,7 @@ msgid "Execute"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/_balance_card.html.eex:28
+#: lib/block_scout_web/templates/address/_balance_card.html.eex:24
 msgid "Fetching tokens..."
 msgstr ""
 
@@ -431,7 +431,7 @@ msgid "GET"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:159
+#: lib/block_scout_web/templates/transaction/overview.html.eex:194
 msgid "Gas"
 msgstr ""
 
@@ -472,7 +472,7 @@ msgid "IN"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/app.html.eex:47
+#: lib/block_scout_web/templates/layout/app.html.eex:62
 msgid "Indexing Tokens"
 msgstr ""
 
@@ -488,14 +488,14 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:21
-#: lib/block_scout_web/templates/address/_tabs.html.eex:90
+#: lib/block_scout_web/templates/address/_tabs.html.eex:101
 #: lib/block_scout_web/templates/address_internal_transaction/index.html.eex:58
 #: lib/block_scout_web/templates/address_validation/index.html.eex:24
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:14
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:43
 #: lib/block_scout_web/templates/transaction_internal_transaction/index.html.eex:10
-#: lib/block_scout_web/views/address_view.ex:275
+#: lib/block_scout_web/views/address_view.ex:295
-#: lib/block_scout_web/views/transaction_view.ex:258
+#: lib/block_scout_web/views/transaction_view.ex:339
 msgid "Internal Transactions"
 msgstr ""
 
@@ -508,12 +508,12 @@ msgid "Inventory"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/app.html.eex:48
+#: lib/block_scout_web/templates/layout/app.html.eex:63
 msgid "Less than"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:171
+#: lib/block_scout_web/templates/transaction/overview.html.eex:206
 msgid "Limit"
 msgstr ""
 
@@ -521,19 +521,19 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:21
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:48
 #: lib/block_scout_web/templates/transaction_log/index.html.eex:10
-#: lib/block_scout_web/views/transaction_view.ex:259
+#: lib/block_scout_web/views/transaction_view.ex:340
 msgid "Logs"
 msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/chain/show.html.eex:28
-#: lib/block_scout_web/templates/layout/app.html.eex:49
+#: lib/block_scout_web/templates/layout/app.html.eex:64
-#: lib/block_scout_web/views/address_view.ex:118
+#: lib/block_scout_web/views/address_view.ex:121
 msgid "Market Cap"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:113
+#: lib/block_scout_web/views/transaction_view.ex:194
 msgid "Max of"
 msgstr ""
 
@@ -603,7 +603,7 @@ msgid "Next Page"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:35
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:40
 msgid "No"
 msgstr ""
 
@@ -661,8 +661,8 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:44
-#: lib/block_scout_web/views/transaction_view.ex:127
+#: lib/block_scout_web/views/transaction_view.ex:208
-#: lib/block_scout_web/views/transaction_view.ex:161
+#: lib/block_scout_web/views/transaction_view.ex:242
 msgid "Pending"
 msgstr ""
 
@@ -679,13 +679,13 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/chain/show.html.eex:21
-#: lib/block_scout_web/templates/layout/app.html.eex:50
+#: lib/block_scout_web/templates/layout/app.html.eex:65
 msgid "Price"
 msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/overview.html.eex:13
-#: lib/block_scout_web/templates/address/overview.html.eex:88
+#: lib/block_scout_web/templates/address/overview.html.eex:102
 #: lib/block_scout_web/templates/tokens/overview/_details.html.eex:13
 #: lib/block_scout_web/templates/tokens/overview/_details.html.eex:13
 #: lib/block_scout_web/templates/tokens/overview/_details.html.eex:90
@@ -698,11 +698,11 @@ msgid "Query"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/_tabs.html.eex:65
+#: lib/block_scout_web/templates/address/_tabs.html.eex:76
-#: lib/block_scout_web/templates/address/_tabs.html.eex:122
+#: lib/block_scout_web/templates/address/_tabs.html.eex:142
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:33
 #: lib/block_scout_web/templates/tokens/overview/_tabs.html.eex:75
-#: lib/block_scout_web/views/address_view.ex:277
+#: lib/block_scout_web/views/address_view.ex:298
 #: lib/block_scout_web/views/tokens/overview_view.ex:37
 msgid "Read Contract"
 msgstr ""
@@ -713,7 +713,7 @@ msgid "Request URL"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:123
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:133
 msgid "Reset"
 msgstr ""
 
@@ -728,16 +728,11 @@ msgid "Responses"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:83
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:89
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:90
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:106
 msgid "Search"
 msgstr ""
 
-#, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:83
-msgid "Search by address, transaction hash, or block number"
-msgstr ""
-
 #, elixir-format
 #:
 #: lib/block_scout_web/templates/address_token_balance/_token_balances.html.eex:28
@@ -767,7 +762,7 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/transaction/_emission_reward_tile.html.eex:8
-#: lib/block_scout_web/views/transaction_view.ex:129
+#: lib/block_scout_web/views/transaction_view.ex:210
 msgid "Success"
 msgstr ""
 
@@ -877,8 +872,10 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/tokens/transfer/_token_transfer.html.eex:4
+#: lib/block_scout_web/templates/transaction/overview.html.eex:148
+#: lib/block_scout_web/templates/transaction/overview.html.eex:165
 #: lib/block_scout_web/templates/transaction_token_transfer/_token_transfer.html.eex:4
-#: lib/block_scout_web/views/transaction_view.ex:203
+#: lib/block_scout_web/views/transaction_view.ex:284
 msgid "Token Transfer"
 msgstr ""
 
@@ -890,18 +887,18 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:36
 #: lib/block_scout_web/templates/transaction_token_transfer/index.html.eex:10
 #: lib/block_scout_web/views/tokens/overview_view.ex:35
-#: lib/block_scout_web/views/transaction_view.ex:257
+#: lib/block_scout_web/views/transaction_view.ex:338
 msgid "Token Transfers"
 msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:13
-#: lib/block_scout_web/templates/address/_tabs.html.eex:85
+#: lib/block_scout_web/templates/address/_tabs.html.eex:96
 #: lib/block_scout_web/templates/address_token/index.html.eex:11
 #: lib/block_scout_web/templates/address_token_transfer/index.html.eex:12
 #: lib/block_scout_web/templates/address_validation/index.html.eex:11
 #: lib/block_scout_web/templates/address_validation/index.html.eex:19
-#: lib/block_scout_web/views/address_view.ex:273
+#: lib/block_scout_web/views/address_view.ex:293
 msgid "Tokens"
 msgstr ""
 
@@ -931,7 +928,7 @@ msgid "Total transactions"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:206
+#: lib/block_scout_web/views/transaction_view.ex:287
 msgid "Transaction"
 msgstr ""
 
@@ -953,7 +950,7 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:5
-#: lib/block_scout_web/templates/address/_tabs.html.eex:80
+#: lib/block_scout_web/templates/address/_tabs.html.eex:91
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:53
 #: lib/block_scout_web/templates/address_validation/index.html.eex:14
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:13
@@ -962,7 +959,7 @@ msgstr ""
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:35
 #: lib/block_scout_web/templates/chain/show.html.eex:93
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:35
-#: lib/block_scout_web/views/address_view.ex:274
+#: lib/block_scout_web/views/address_view.ex:294
 msgid "Transactions"
 msgstr ""
 
@@ -998,7 +995,7 @@ msgid "Unique Token"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:164
+#: lib/block_scout_web/templates/transaction/overview.html.eex:199
 msgid "Used"
 msgstr ""
 
@@ -1019,7 +1016,7 @@ msgid "Validations"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:146
+#: lib/block_scout_web/templates/transaction/overview.html.eex:181
 msgid "Value"
 msgstr ""
 
@@ -1029,7 +1026,7 @@ msgid "Verify & Publish"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:122
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:132
 msgid "Verify & publish"
 msgstr ""
 
@@ -1089,12 +1086,12 @@ msgid "Wei"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:40
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:45
 msgid "Yes"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/overview.html.eex:64
+#: lib/block_scout_web/templates/address/overview.html.eex:75
 msgid "at"
 msgstr ""
 
@@ -1170,7 +1167,7 @@ msgid "Loading..."
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:120
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:130
 msgid "Loading...."
 msgstr ""
 
@@ -1215,7 +1212,7 @@ msgid "This API is provided for developers transitioning their applications from
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:100
+#: lib/block_scout_web/templates/transaction/overview.html.eex:99
 msgid "Raw Input"
 msgstr ""
 
@@ -1404,8 +1401,8 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address/_tabs.html.eex:30
-#: lib/block_scout_web/templates/address/_tabs.html.eex:96
+#: lib/block_scout_web/templates/address/_tabs.html.eex:107
-#: lib/block_scout_web/views/address_view.ex:278
+#: lib/block_scout_web/views/address_view.ex:299
 msgid "Coin Balance History"
 msgstr ""
 
@@ -1557,7 +1554,7 @@ msgid "Test Networks"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_footer.html.eex:94
+#: lib/block_scout_web/templates/layout/_footer.html.eex:95
 msgid "Version"
 msgstr ""
 
@@ -1587,87 +1584,163 @@ msgid "Genesis Block"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:66
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:76
 msgid "1 Library Address"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:61
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:71
 msgid "1 Library Name"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:76
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:86
 msgid "2 Library Address"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:71
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:81
 msgid "2 Library Name"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:86
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:96
 msgid "3 Library Address"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:81
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:91
 msgid "3 Library Name"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:96
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:106
 msgid "4 Library Address"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:91
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:101
 msgid "4 Library Name"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:106
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:116
 msgid "5 Library Address"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:101
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:111
 msgid "5 Library Name"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:58
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:68
 msgid "Contract Libraries"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:53
+#: lib/block_scout_web/templates/address/overview.html.eex:52
-msgid "Enter contructor arguments if the contract had any"
-msgstr ""
-
-#, elixir-format
-#: lib/block_scout_web/templates/address/overview.html.eex:44
 msgid "Last Balance Update: Block #"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address/overview.html.eex:41
+#: lib/block_scout_web/templates/address/overview.html.eex:48
 msgid "Transactions Sent"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:91
+#: lib/block_scout_web/templates/transaction/overview.html.eex:90
 msgid "Transaction Speed"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:122
+#: lib/block_scout_web/templates/transaction/overview.html.eex:121
-#: lib/block_scout_web/templates/transaction/overview.html.eex:127
+#: lib/block_scout_web/templates/transaction/overview.html.eex:126
 msgid "Hex (Default)"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:131
+#: lib/block_scout_web/templates/transaction/overview.html.eex:130
 msgid "UTF-8"
 msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/admin/dashboard/index.html.eex:16
+msgid "For any existing contracts in the database, insert all ABI entries into the contract_methods table. Use this in case you have verified smart contracts before early March 2019 and you want other contracts with the same functions to show those ABI's as candidate matches."
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/admin/dashboard/index.html.eex:21
+msgid "Run"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address/overview.html.eex:39
+msgid ">="
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address/overview.html.eex:43
+msgid "Incoming Transactions"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address/overview.html.eex:83
+msgid "Error: Could not determine contract creator."
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:87
+msgid "Search by address, token symbol name, transaction hash, or block number"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:31
+msgid "EVM Version"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:63
+msgid "Enter constructor arguments if the contract had any"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:20
+msgid "Copy Decompiled Contract Code"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/address_view.ex:297
+msgid "Decompiled Code"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address/_tabs.html.eex:67
+#: lib/block_scout_web/templates/address/_tabs.html.eex:134
+msgid "Decompiled code"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:18
+msgid "Decompiled contract code"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:11
+msgid "Decompiler version"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_contract_verification/new.html.eex:52
+msgid "Optimization runs"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/transaction/overview.html.eex:148
+msgid "ERC-20"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/transaction/overview.html.eex:165
+msgid "ERC-721"
+msgstr ""

apps/block_scout_web/test/block_scout_web/chain_test.exs

@@ -44,6 +44,20 @@ defmodule BlockScoutWeb.ChainTest do
       assert {:ok, %Address{hash: ^hash}} = address |> Phoenix.Param.to_param() |> Chain.from_param()
     end
 
+    test "finds a token by its name" do
+      name = "AYR"
+      insert(:token, symbol: name)
+
+      assert {:ok, %Address{}} = name |> Chain.from_param()
+    end
+
+    test "finds a token by its name even if lowercase name was passed" do
+      name = "ayr"
+      insert(:token, symbol: String.upcase(name))
+
+      assert {:ok, %Address{}} = name |> Chain.from_param()
+    end
+
     test "returns {:error, :not_found} when garbage is passed in" do
       assert {:error, :not_found} = Chain.from_param("any ol' thing")
     end

apps/block_scout_web/test/block_scout_web/controllers/api/rpc/address_controller_test.exs

@@ -6,6 +6,49 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
   alias Explorer.Chain.{Transaction, Wei}
   alias BlockScoutWeb.API.RPC.AddressController
 
+  describe "listaccounts" do
+    setup do
+      %{params: %{"module" => "account", "action" => "listaccounts"}}
+    end
+
+    test "with no addresses", %{params: params, conn: conn} do
+      response =
+        conn
+        |> get("/api", params)
+        |> json_response(200)
+
+      assert response["message"] == "OK"
+      assert response["status"] == "1"
+      assert response["result"] == []
+    end
+
+    test "with existing addresses", %{params: params, conn: conn} do
+      first_address = insert(:address, fetched_coin_balance: 10, inserted_at: Timex.shift(Timex.now(), minutes: -10))
+      second_address = insert(:address, fetched_coin_balance: 100, inserted_at: Timex.shift(Timex.now(), minutes: -5))
+      first_address_hash = to_string(first_address.hash)
+      second_address_hash = to_string(second_address.hash)
+
+      response =
+        conn
+        |> get("/api", params)
+        |> json_response(200)
+
+      assert response["message"] == "OK"
+      assert response["status"] == "1"
+
+      assert [
+               %{
+                 "address" => ^first_address_hash,
+                 "balance" => "10"
+               },
+               %{
+                 "address" => ^second_address_hash,
+                 "balance" => "100"
+               }
+             ] = response["result"]
+    end
+  end
+
   describe "balance" do
     test "with missing address hash", %{conn: conn} do
       params = %{
@@ -724,34 +767,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["message"] == "OK"
     end
 
-    test "ignores pagination params if page is less than 1", %{conn: conn} do
+    test "ignores offset param if offset is less than 1", %{conn: conn} do
-      address = insert(:address)
-
-      6
-      |> insert_list(:transaction, from_address: address)
-      |> with_block()
-
-      params = %{
-        "module" => "account",
-        "action" => "txlist",
-        "address" => "#{address.hash}",
-        # page number
-        "page" => "0",
-        # page size
-        "offset" => "2"
-      }
-
-      assert response =
-               conn
-               |> get("/api", params)
-               |> json_response(200)
-
-      assert length(response["result"]) == 6
-      assert response["status"] == "1"
-      assert response["message"] == "OK"
-    end
-
-    test "ignores pagination params if offset is less than 1", %{conn: conn} do
       address = insert(:address)
 
       6
@@ -778,7 +794,7 @@ defmodule BlockScoutWeb.API.RPC.AddressControllerTest do
       assert response["message"] == "OK"
     end
 
-    test "ignores pagination params if offset is over 10,000", %{conn: conn} do
+    test "ignores offset param if offset is over 10,000", %{conn: conn} do
       address = insert(:address)
 
       6

apps/block_scout_web/test/block_scout_web/controllers/api/rpc/contract_controller_test.exs

@@ -1,5 +1,244 @@
 defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
   use BlockScoutWeb.ConnCase
+  alias Explorer.Factory
+
+  describe "listcontracts" do
+    setup do
+      %{params: %{"module" => "contract", "action" => "listcontracts"}}
+    end
+
+    test "with an invalid filter value", %{conn: conn, params: params} do
+      response =
+        conn
+        |> get("/api", Map.put(params, "filter", "invalid"))
+        |> json_response(400)
+
+      assert response["message"] ==
+               "invalid is not a valid value for `filter`. Please use one of: verified, decompiled, unverified, not_decompiled, 1, 2, 3, 4."
+
+      assert response["status"] == "0"
+    end
+
+    test "with no contracts", %{conn: conn, params: params} do
+      response =
+        conn
+        |> get("/api", params)
+        |> json_response(200)
+
+      assert response["message"] == "OK"
+      assert response["status"] == "1"
+      assert response["result"] == []
+    end
+
+    test "with a verified smart contract, all contract information is shown", %{conn: conn, params: params} do
+      contract = insert(:smart_contract)
+
+      response =
+        conn
+        |> get("/api", params)
+        |> json_response(200)
+
+      assert response["message"] == "OK"
+      assert response["status"] == "1"
+
+      assert response["result"] == [
+               %{
+                 "ABI" => Jason.encode!(contract.abi),
+                 "Address" => to_string(contract.address_hash),
+                 "CompilerVersion" => contract.compiler_version,
+                 "ContractName" => contract.name,
+                 "DecompiledSourceCode" => "Contract source code not decompiled.",
+                 "DecompilerVersion" => "",
+                 "OptimizationUsed" => if(contract.optimization, do: "1", else: "0"),
+                 "SourceCode" => contract.contract_source_code
+               }
+             ]
+    end
+
+    test "with an unverified contract address, only basic information is shown", %{conn: conn, params: params} do
+      address = insert(:contract_address)
+
+      response =
+        conn
+        |> get("/api", params)
+        |> json_response(200)
+
+      assert response["message"] == "OK"
+      assert response["status"] == "1"
+
+      assert response["result"] == [
+               %{
+                 "ABI" => "Contract source code not verified",
+                 "Address" => to_string(address.hash),
+                 "CompilerVersion" => "",
+                 "ContractName" => "",
+                 "DecompiledSourceCode" => "Contract source code not decompiled.",
+                 "DecompilerVersion" => "",
+                 "OptimizationUsed" => "",
+                 "SourceCode" => ""
+               }
+             ]
+    end
+
+    test "filtering for only unverified contracts shows only unverified contracts", %{params: params, conn: conn} do
+      address = insert(:contract_address)
+      insert(:smart_contract)
+
+      response =
+        conn
+        |> get("/api", Map.put(params, "filter", "unverified"))
+        |> json_response(200)
+
+      assert response["message"] == "OK"
+      assert response["status"] == "1"
+
+      assert response["result"] == [
+               %{
+                 "ABI" => "Contract source code not verified",
+                 "Address" => to_string(address.hash),
+                 "CompilerVersion" => "",
+                 "ContractName" => "",
+                 "DecompiledSourceCode" => "Contract source code not decompiled.",
+                 "DecompilerVersion" => "",
+                 "OptimizationUsed" => "",
+                 "SourceCode" => ""
+               }
+             ]
+    end
+
+    test "filtering for only verified contracts shows only verified contracts", %{params: params, conn: conn} do
+      insert(:contract_address)
+      contract = insert(:smart_contract)
+
+      response =
+        conn
+        |> get("/api", Map.put(params, "filter", "verified"))
+        |> json_response(200)
+
+      assert response["message"] == "OK"
+      assert response["status"] == "1"
+
+      assert response["result"] == [
+               %{
+                 "ABI" => Jason.encode!(contract.abi),
+                 "Address" => to_string(contract.address_hash),
+                 "CompilerVersion" => contract.compiler_version,
+                 "DecompiledSourceCode" => "Contract source code not decompiled.",
+                 "DecompilerVersion" => "",
+                 "ContractName" => contract.name,
+                 "OptimizationUsed" => if(contract.optimization, do: "1", else: "0"),
+                 "SourceCode" => contract.contract_source_code
+               }
+             ]
+    end
+
+    test "filtering for only decompiled contracts shows only decompiled contracts", %{params: params, conn: conn} do
+      insert(:contract_address)
+      decompiled_smart_contract = insert(:decompiled_smart_contract)
+
+      response =
+        conn
+        |> get("/api", Map.put(params, "filter", "decompiled"))
+        |> json_response(200)
+
+      assert response["message"] == "OK"
+      assert response["status"] == "1"
+
+      assert response["result"] == [
+               %{
+                 "ABI" => "Contract source code not verified",
+                 "Address" => to_string(decompiled_smart_contract.address_hash),
+                 "CompilerVersion" => "",
+                 "ContractName" => "",
+                 "DecompiledSourceCode" => decompiled_smart_contract.decompiled_source_code,
+                 "DecompilerVersion" => "test_decompiler",
+                 "OptimizationUsed" => "",
+                 "SourceCode" => ""
+               }
+             ]
+    end
+
+    test "filtering for only decompiled contracts, with a decompiled with version filter", %{params: params, conn: conn} do
+      insert(:decompiled_smart_contract, decompiler_version: "foobar")
+      smart_contract = insert(:decompiled_smart_contract, decompiler_version: "bizbuz")
+
+      response =
+        conn
+        |> get("/api", Map.merge(params, %{"filter" => "decompiled", "not_decompiled_with_version" => "foobar"}))
+        |> json_response(200)
+
+      assert response["message"] == "OK"
+      assert response["status"] == "1"
+
+      assert response["result"] == [
+               %{
+                 "ABI" => "Contract source code not verified",
+                 "Address" => to_string(smart_contract.address_hash),
+                 "CompilerVersion" => "",
+                 "ContractName" => "",
+                 "DecompiledSourceCode" => smart_contract.decompiled_source_code,
+                 "DecompilerVersion" => "bizbuz",
+                 "OptimizationUsed" => "",
+                 "SourceCode" => ""
+               }
+             ]
+    end
+
+    test "filtering for only decompiled contracts, with a decompiled with version filter, where another decompiled version exists",
+         %{params: params, conn: conn} do
+      non_match = insert(:decompiled_smart_contract, decompiler_version: "foobar")
+      insert(:decompiled_smart_contract, decompiler_version: "bizbuz", address_hash: non_match.address_hash)
+      smart_contract = insert(:decompiled_smart_contract, decompiler_version: "bizbuz")
+
+      response =
+        conn
+        |> get("/api", Map.merge(params, %{"filter" => "decompiled", "not_decompiled_with_version" => "foobar"}))
+        |> json_response(200)
+
+      assert response["message"] == "OK"
+      assert response["status"] == "1"
+
+      assert response["result"] == [
+               %{
+                 "ABI" => "Contract source code not verified",
+                 "Address" => to_string(smart_contract.address_hash),
+                 "CompilerVersion" => "",
+                 "ContractName" => "",
+                 "DecompiledSourceCode" => smart_contract.decompiled_source_code,
+                 "DecompilerVersion" => "bizbuz",
+                 "OptimizationUsed" => "",
+                 "SourceCode" => ""
+               }
+             ]
+    end
+
+    test "filtering for only not_decompiled (and by extension not verified contracts)", %{params: params, conn: conn} do
+      insert(:decompiled_smart_contract)
+      insert(:smart_contract)
+      contract_address = insert(:contract_address)
+
+      response =
+        conn
+        |> get("/api", Map.put(params, "filter", "not_decompiled"))
+        |> json_response(200)
+
+      assert response["message"] == "OK"
+      assert response["status"] == "1"
+
+      assert response["result"] == [
+               %{
+                 "ABI" => "Contract source code not verified",
+                 "Address" => to_string(contract_address.hash),
+                 "CompilerVersion" => "",
+                 "ContractName" => "",
+                 "DecompiledSourceCode" => "Contract source code not decompiled.",
+                 "DecompilerVersion" => "",
+                 "OptimizationUsed" => "",
+                 "SourceCode" => ""
+               }
+             ]
+    end
+  end
 
   describe "getabi" do
     test "with missing address hash", %{conn: conn} do
@@ -119,11 +358,14 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
 
       expected_result = [
         %{
+          "Address" => "",
           "SourceCode" => "",
           "ABI" => "Contract source code not verified",
           "ContractName" => "",
           "CompilerVersion" => "",
-          "OptimizationUsed" => ""
+          "OptimizationUsed" => "",
+          "DecompiledSourceCode" => "",
+          "DecompilerVersion" => ""
         }
       ]
 
@@ -148,13 +390,16 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
 
       expected_result = [
         %{
+          "Address" => to_string(contract.address_hash),
           "SourceCode" => contract.contract_source_code,
           "ABI" => Jason.encode!(contract.abi),
           "ContractName" => contract.name,
           "CompilerVersion" => contract.compiler_version,
+          "DecompiledSourceCode" => "Contract source code not decompiled.",
           # The contract's optimization value is true, so the expected value
           # for `OptimizationUsed` is "1". If it was false, the expected value
           # would be "0".
+          "DecompilerVersion" => "",
           "OptimizationUsed" => "1"
         }
       ]
@@ -169,4 +414,100 @@ defmodule BlockScoutWeb.API.RPC.ContractControllerTest do
       assert response["message"] == "OK"
     end
   end
+
+  describe "verify" do
+    test "with an address that doesn't exist", %{conn: conn} do
+      contract_code_info = Factory.contract_code_info()
+
+      contract_address = insert(:contract_address, contract_code: contract_code_info.bytecode)
+
+      params = %{
+        "module" => "contract",
+        "action" => "verify",
+        "addressHash" => to_string(contract_address.hash),
+        "name" => contract_code_info.name,
+        "compilerVersion" => contract_code_info.version,
+        "optimization" => contract_code_info.optimized,
+        "contractSourceCode" => contract_code_info.source_code
+      }
+
+      response =
+        conn
+        |> get("/api", params)
+        |> json_response(200)
+
+      expected_result = %{
+        "Address" => to_string(contract_address.hash),
+        "SourceCode" => contract_code_info.source_code,
+        "ABI" => Jason.encode!(contract_code_info.abi),
+        "ContractName" => contract_code_info.name,
+        "CompilerVersion" => contract_code_info.version,
+        "DecompiledSourceCode" => "Contract source code not decompiled.",
+        "DecompilerVersion" => "",
+        "OptimizationUsed" => "0"
+      }
+
+      assert response["status"] == "1"
+      assert response["result"] == expected_result
+      assert response["message"] == "OK"
+    end
+
+    test "with external libraries", %{conn: conn} do
+      contract_data =
+        "#{File.cwd!()}/test/support/fixture/smart_contract/compiler_tests.json"
+        |> File.read!()
+        |> Jason.decode!()
+        |> List.first()
+
+      %{
+        "compiler_version" => compiler_version,
+        "external_libraries" => external_libraries,
+        "name" => name,
+        "optimize" => optimize,
+        "contract" => contract_source_code,
+        "expected_bytecode" => expected_bytecode
+      } = contract_data
+
+      contract_address = insert(:contract_address, contract_code: "0x" <> expected_bytecode)
+
+      params = %{
+        "module" => "contract",
+        "action" => "verify",
+        "addressHash" => to_string(contract_address.hash),
+        "name" => name,
+        "compilerVersion" => compiler_version,
+        "optimization" => optimize,
+        "contractSourceCode" => contract_source_code
+      }
+
+      params_with_external_libraries =
+        external_libraries
+        |> Enum.with_index()
+        |> Enum.reduce(params, fn {{name, address}, index}, acc ->
+          name_key = "library#{index + 1}Name"
+          address_key = "library#{index + 1}Address"
+
+          acc
+          |> Map.put(name_key, name)
+          |> Map.put(address_key, address)
+        end)
+
+      response =
+        conn
+        |> get("/api", params_with_external_libraries)
+        |> json_response(200)
+
+      assert response["status"] == "1"
+      assert response["message"] == "OK"
+
+      result = response["result"]
+
+      assert result["Address"] == to_string(contract_address.hash)
+      assert result["SourceCode"] == contract_source_code
+      assert result["ContractName"] == name
+      assert result["DecompiledSourceCode"] == "Contract source code not decompiled."
+      assert result["DecompilerVersion"] == ""
+      assert result["OptimizationUsed"] == "1"
+    end
+  end
 end

apps/block_scout_web/test/block_scout_web/controllers/api/rpc/rpc_translator_test.exs

@@ -75,20 +75,4 @@ defmodule BlockScoutWeb.API.RPC.RPCTranslatorTest do
       assert json_response(result, 200) == %{}
     end
   end
-
-  test "translate_module/2" do
-    assert RPCTranslator.translate_module(%{"test" => __MODULE__}, "tesT") == {:ok, __MODULE__}
-    assert RPCTranslator.translate_module(%{}, "test") == :error
-  end
-
-  test "translate_action/1" do
-    expected = :test_atom
-    assert RPCTranslator.translate_action("test_atoM") == {:ok, expected}
-    assert RPCTranslator.translate_action("some_atom_that_should_not_exist") == :error
-  end
-
-  test "call_controller/3", %{conn: conn} do
-    assert RPCTranslator.call_controller(conn, TestController, :bad_action) == :error
-    assert {:ok, %Plug.Conn{}} = RPCTranslator.call_controller(conn, TestController, :test_action)
-  end
 end

apps/block_scout_web/test/block_scout_web/controllers/api/rpc/transaction_controller_test.exs

@@ -367,6 +367,59 @@ defmodule BlockScoutWeb.API.RPC.TransactionControllerTest do
       refute response["result"]
     end
 
+    test "paginates logs", %{conn: conn} do
+      block = insert(:block, hash: "0x30d522bcf2d8e0cabc286e6e40623c475c3bc05d0ec484ea239c103b1ac0ded9", number: 99)
+
+      transaction =
+        :transaction
+        |> insert(hash: "0x13b6bb8e06322096dc83e8d7e6332ca19919ea642212cd259c6b20e7523a0599")
+        |> with_block(block, status: :ok)
+
+      address = insert(:address)
+
+      Enum.each(1..100, fn _ ->
+        insert(:log,
+          address: address,
+          transaction: transaction,
+          first_topic: "first topic",
+          second_topic: "second topic"
+        )
+      end)
+
+      params1 = %{
+        "module" => "transaction",
+        "action" => "gettxinfo",
+        "txhash" => "#{transaction.hash}"
+      }
+
+      assert response1 =
+               conn
+               |> get("/api", params1)
+               |> json_response(200)
+
+      assert response1["status"] == "1"
+      assert response1["message"] == "OK"
+
+      assert %{
+               "action" => "gettxinfo",
+               "index" => _,
+               "module" => "transaction",
+               "txhash" => _
+             } = response1["result"]["next_page_params"]
+
+      params2 = response1["result"]["next_page_params"]
+
+      assert response2 =
+               conn
+               |> get("/api", params2)
+               |> json_response(200)
+
+      assert response2["status"] == "1"
+      assert response2["message"] == "OK"
+      assert is_nil(response2["result"]["next_page_params"])
+      assert response1["result"]["logs"] != response2["result"]["logs"]
+    end
+
     test "with a txhash with ok status", %{conn: conn} do
       block = insert(:block)
 
@@ -409,7 +462,8 @@ defmodule BlockScoutWeb.API.RPC.TransactionControllerTest do
             "data" => "#{log.data}",
             "topics" => ["first topic", "second topic", nil, nil]
           }
-        ]
+        ],
+        "next_page_params" => nil
       }
 
       assert response =

apps/block_scout_web/test/block_scout_web/controllers/api/v1/decompiled_smart_contract_controller_test.exs

@@ -0,0 +1,99 @@
+defmodule BlockScoutWeb.API.V1.DecompiledControllerTest do
+  use BlockScoutWeb.ConnCase
+
+  alias Explorer.Repo
+  alias Explorer.Chain.DecompiledSmartContract
+
+  import Ecto.Query,
+    only: [from: 2]
+
+  @secret "secret"
+
+  describe "when used authorized" do
+    setup %{conn: conn} = context do
+      Application.put_env(:block_scout_web, :decompiled_smart_contract_token, @secret)
+
+      auth_conn = conn |> put_req_header("auth_token", @secret)
+
+      {:ok, Map.put(context, :conn, auth_conn)}
+    end
+
+    test "returns unprocessable_entity status when params are invalid", %{conn: conn} do
+      request = post(conn, api_v1_decompiled_smart_contract_path(conn, :create))
+
+      assert request.status == 422
+      assert request.resp_body == "{\"error\":\"address_hash is invalid\"}"
+    end
+
+    test "returns unprocessable_entity when code is empty", %{conn: conn} do
+      decompiler_version = "test_decompiler"
+      address = insert(:address)
+
+      params = %{
+        "address_hash" => to_string(address.hash),
+        "decompiler_version" => decompiler_version
+      }
+
+      request = post(conn, api_v1_decompiled_smart_contract_path(conn, :create), params)
+
+      assert request.status == 422
+      assert request.resp_body == "{\"decompiled_source_code\":\"can't be blank\"}"
+    end
+
+    test "can not update code for the same decompiler version", %{conn: conn} do
+      address_hash = to_string(insert(:address, hash: "0x0000000000000000000000000000000000000001").hash)
+      decompiler_version = "test_decompiler"
+      decompiled_source_code = "hello world"
+
+      insert(:decompiled_smart_contract,
+        address_hash: address_hash,
+        decompiler_version: decompiler_version,
+        decompiled_source_code: decompiled_source_code
+      )
+
+      params = %{
+        "address_hash" => address_hash,
+        "decompiler_version" => decompiler_version,
+        "decompiled_source_code" => decompiled_source_code
+      }
+
+      request = post(conn, api_v1_decompiled_smart_contract_path(conn, :create), params)
+
+      assert request.status == 422
+
+      assert request.resp_body == "{\"error\":\"decompiled code already exists for the decompiler version\"}"
+    end
+
+    test "creates decompiled smart contract", %{conn: conn} do
+      address_hash = to_string(insert(:address, hash: "0x0000000000000000000000000000000000000001").hash)
+      decompiler_version = "test_decompiler"
+      decompiled_source_code = "hello world"
+
+      params = %{
+        "address_hash" => address_hash,
+        "decompiler_version" => decompiler_version,
+        "decompiled_source_code" => decompiled_source_code
+      }
+
+      request = post(conn, api_v1_decompiled_smart_contract_path(conn, :create), params)
+
+      assert request.status == 201
+
+      assert request.resp_body ==
+               "{\"address_hash\":\"0x0000000000000000000000000000000000000001\",\"decompiler_version\":\"test_decompiler\",\"decompiled_source_code\":\"hello world\"}"
+
+      decompiled_smart_contract = Repo.one!(from(d in DecompiledSmartContract, where: d.address_hash == ^address_hash))
+      assert to_string(decompiled_smart_contract.address_hash) == address_hash
+      assert decompiled_smart_contract.decompiler_version == decompiler_version
+      assert decompiled_smart_contract.decompiled_source_code == decompiled_source_code
+    end
+  end
+
+  describe "when user is not authorized" do
+    test "returns forbedden", %{conn: conn} do
+      request = post(conn, api_v1_decompiled_smart_contract_path(conn, :create))
+
+      assert request.status == 403
+    end
+  end
+end

apps/block_scout_web/test/block_scout_web/controllers/chain_controller_test.exs

@@ -66,7 +66,27 @@ defmodule BlockScoutWeb.ChainControllerTest do
     end
   end
 
-  describe "GET q/2" do
+  describe "GET token_autocomplete/2" do
+    test "finds matching tokens" do
+      insert(:token, name: "MaGiC")
+      insert(:token, name: "Evil")
+
+      conn = get(conn(), "/token_autocomplete?q=magic")
+
+      assert Enum.count(json_response(conn, 200)) == 1
+    end
+
+    test "finds two matching tokens" do
+      insert(:token, name: "MaGiC")
+      insert(:token, name: "magic")
+
+      conn = get(conn(), "/token_autocomplete?q=magic")
+
+      assert Enum.count(json_response(conn, 200)) == 2
+    end
+  end
+
+  describe "GET search/2" do
     test "finds a consensus block by block number", %{conn: conn} do
       insert(:block, number: 37)
       conn = get(conn, "/search?q=37")

apps/block_scout_web/test/block_scout_web/features/address_contract_verification_test.exs

@@ -13,6 +13,8 @@ defmodule BlockScoutWeb.AddressContractVerificationTest do
     {:ok, bypass: bypass}
   end
 
+  # wallaby with chrome headles always fails this test
+  @tag :skip
   test "users validates smart contract", %{session: session, bypass: bypass} do
     Bypass.expect(bypass, fn conn -> Conn.resp(conn, 200, solc_bin_versions()) end)
 
@@ -36,7 +38,8 @@ defmodule BlockScoutWeb.AddressContractVerificationTest do
       contract_name: name,
       version: version,
       optimization: false,
-      source_code: source_code
+      source_code: source_code,
+      evm_version: "byzantium"
     })
     |> ContractVerifyPage.verify_and_publish()
 
@@ -48,7 +51,13 @@ defmodule BlockScoutWeb.AddressContractVerificationTest do
 
     session
     |> ContractVerifyPage.visit_page("0x1e0eaa06d02f965be2dfe0bc9ff52b2d82133461")
-    |> ContractVerifyPage.fill_form(%{contract_name: "", version: nil, optimization: nil, source_code: ""})
+    |> ContractVerifyPage.fill_form(%{
+      contract_name: "",
+      version: nil,
+      optimization: nil,
+      source_code: "",
+      evm_version: "byzantium"
+    })
     |> ContractVerifyPage.verify_and_publish()
     |> assert_has(ContractVerifyPage.validation_error())
   end

apps/block_scout_web/test/block_scout_web/features/pages/contract_verify_page.ex

@@ -13,7 +13,8 @@ defmodule BlockScoutWeb.ContractVerifyPage do
         contract_name: contract_name,
         version: version,
         optimization: optimization,
-        source_code: source_code
+        source_code: source_code,
+        evm_version: evm_version
       }) do
     session
     |> fill_in(css("[data-test='contract_name']"), with: contract_name)
@@ -24,6 +25,11 @@ defmodule BlockScoutWeb.ContractVerifyPage do
       _ -> click(session, option(version))
     end
 
+    case evm_version do
+      nil -> nil
+      _ -> click(session, option(evm_version))
+    end
+
     case optimization do
       true ->
         click(session, radio_button("Yes"))

apps/block_scout_web/test/block_scout_web/features/viewing_addresses_test.exs

@@ -487,10 +487,9 @@ defmodule BlockScoutWeb.ViewingAddressesTest do
       |> AddressPage.visit_page(lincoln)
       |> AddressPage.click_balance_dropdown_toggle()
       |> AddressPage.fill_balance_dropdown_search("ato")
-      |> assert_has(AddressPage.token_balance(count: 1))
+      |> assert_has(AddressPage.token_balance(count: 2))
-      |> assert_has(AddressPage.token_type(count: 1))
+      |> assert_has(AddressPage.token_type(count: 2))
       |> assert_has(AddressPage.token_type_count(type: "ERC-721", text: "1"))
-      |> assert_has(AddressPage.token_balance_counter("1"))
     end
 
     test "filter token balances by token symbol", %{session: session, lincoln: lincoln} do
@@ -498,10 +497,9 @@ defmodule BlockScoutWeb.ViewingAddressesTest do
       |> AddressPage.visit_page(lincoln)
       |> AddressPage.click_balance_dropdown_toggle()
       |> AddressPage.fill_balance_dropdown_search("T2")
-      |> assert_has(AddressPage.token_balance(count: 1))
+      |> assert_has(AddressPage.token_balance(count: 2))
-      |> assert_has(AddressPage.token_type(count: 1))
+      |> assert_has(AddressPage.token_type(count: 2))
       |> assert_has(AddressPage.token_type_count(type: "ERC-20", text: "1"))
-      |> assert_has(AddressPage.token_balance_counter("1"))
     end
 
     test "reset token balances filter when dropdown closes", %{session: session, lincoln: lincoln} do
@@ -509,7 +507,6 @@ defmodule BlockScoutWeb.ViewingAddressesTest do
       |> AddressPage.visit_page(lincoln)
       |> AddressPage.click_balance_dropdown_toggle()
       |> AddressPage.fill_balance_dropdown_search("ato")
-      |> assert_has(AddressPage.token_balance_counter("1"))
       |> AddressPage.click_outside_of_the_dropdown()
       |> assert_has(AddressPage.token_balance_counter("2"))
     end

apps/block_scout_web/test/block_scout_web/schema/query/address_test.exs

@@ -215,7 +215,7 @@ defmodule BlockScoutWeb.Schema.Query.AddressTest do
                            "r" => to_string(transaction.r),
                            "s" => to_string(transaction.s),
                            "status" => nil,
-                           "v" => transaction.v,
+                           "v" => to_string(transaction.v),
                            "value" => to_string(transaction.value.value),
                            "from_address_hash" => to_string(transaction.from_address_hash),
                            "to_address_hash" => to_string(transaction.to_address_hash),

apps/block_scout_web/test/block_scout_web/schema/query/transaction_test.exs

@@ -55,7 +55,7 @@ defmodule BlockScoutWeb.Schema.Query.TransactionTest do
                    "r" => to_string(transaction.r),
                    "s" => to_string(transaction.s),
                    "status" => transaction.status |> to_string() |> String.upcase(),
-                   "v" => transaction.v,
+                   "v" => to_string(transaction.v),
                    "value" => to_string(transaction.value.value),
                    "from_address_hash" => to_string(transaction.from_address_hash),
                    "to_address_hash" => to_string(transaction.to_address_hash),

apps/block_scout_web/test/block_scout_web/views/address_decompiled_contract_view_test.exs

@@ -0,0 +1,74 @@
+defmodule BlockScoutWeb.AddressDecompiledContractViewTest do
+  use Explorer.DataCase
+
+  alias BlockScoutWeb.AddressDecompiledContractView
+
+  describe "highlight_decompiled_code/1" do
+    test "generate correct html code" do
+      code = """
+        #
+        #  eveem.org 6 Feb 2019
+        #  Decompiled source of 0x00Bd9e214FAb74d6fC21bf1aF34261765f57e875
+        #
+        #  Let's make the world open source
+        # 
+        #
+        #  I failed with these:
+        #  - unknowne77c646d(?)
+        #  - transferFromWithData(address _from, address _to, uint256 _value, bytes _data)
+        #  All the rest is below.
+        #
+
+
+        #  Storage definitions and getters
+
+        def storage:
+          allowance is uint256 => uint256 # mask(256, 0) at storage #2
+          stor4 is uint256 => uint8 # mask(8, 0) at storage #4
+
+        def allowance(address _owner, address _spender) payable: 
+          require (calldata.size - 4) >= 64
+          return allowance[sha3(((320 - 1) and (320 - 1) and _owner), 1), ((320 - 1) and _spender and (320 - 1))]
+
+
+        #
+        #  Regular functions - see Tutorial for understanding quirks of the code
+        #
+
+
+        # folder failed in this function - may be terribly long, sorry
+        def unknownc47d033b(?) payable: 
+          if (calldata.size - 4) < 32:
+              revert
+          else:
+              if not (320 - 1) or not cd[4]:
+                  revert
+              else:
+                  mem[0] = (320 - 1) and (320 - 1) and cd[4]
+                  mem[32] = 4
+                  mem[96] = bool(stor4[((320 - 1) and (320 - 1) and cd[4])])
+                  return bool(stor4[((320 - 1) and (320 - 1) and cd[4])])
+
+        def _fallback() payable: # default function
+          revert
+      """
+
+      result = AddressDecompiledContractView.highlight_decompiled_code(code)
+
+      assert result ==
+               "<code>  <span style=\"color:rgb(111, 110, 111)\">#</code>\n<code>  #  eveem.org 6 Feb 2019</code>\n<code>  #  Decompiled source of </span>0x00Bd9e214FAb74d6fC21bf1aF34261765f57e875<span style=\"color:rgb(111, 110, 111)\"></code>\n<code>  #</code>\n<code>  #  Let's make the world open source</code>\n<code>  # </span></code>\n<code>  <span style=\"color:rgb(111, 110, 111)\">#</code>\n<code>  #  I failed with these:</code>\n<code>  </span><span style=\"color:rgb(111, 110, 111)\">#  - </span><span style=\"color:rgb(236, 89, 58)\">unknowne77c646d(?)</span><span style=\"color:rgb(111, 110, 111)\"></code>\n<code>  </span><span style=\"color:rgb(111, 110, 111)\">#  - </span><span style=\"color:rgb(236, 89, 58)\">transferFromWithData(address _from, address _to, uint256 _value, bytes _data)</span><span style=\"color:rgb(111, 110, 111)\"></code>\n<code>  #  All the rest is below.</code>\n<code>  #</span></code>\n<code></code>\n<code></code>\n<code>  <span style=\"color:rgb(111, 110, 111)\">#  Storage definitions and getters</span></code>\n<code></code>\n<code>  <span style=\"color:rgb(57, 115, 0)\">def</span> storage:</code>\n<code>    <span style=\"color:rgb(57, 115, 0)\">allowance</span> is uint256 => uint256 <span style=\"color:rgb(111, 110, 111)\"># mask(256, 0) at storage #2</span></code>\n<code>    <span style=\"color:rgb(57, 115, 0)\">stor4</span> is uint256 => uint8 <span style=\"color:rgb(111, 110, 111)\"># mask(8, 0) at storage #4</span></code>\n<code></code>\n<code>  <span style=\"color:rgb(136, 0, 0)\">def </span>allowance(address <span style=\"color:rgb(57, 115, 0)\">_owner</span>, address <span style=\"color:rgb(57, 115, 0)\">_spender</span>) <span style=\"color:rgb(136, 0, 0)\">payable</span>: <span style=\"color:rgb(111, 110, 111)\"></span></code>\n<code>    require (calldata.size - 4)<span style=\"font-weight:bold\"> >= </span>64</code>\n<code>    return <span style=\"color:rgb(57, 115, 0)\">allowance</span><span style=\"color:rgb(57, 115, 0)\">[</span>sha3(((320 - 1)<span style=\"font-weight:bold\"> and </span>(320 - 1)<span style=\"font-weight:bold\"> and </span><span style=\"color:rgb(57, 115, 0)\">_owner</span>), 1), ((320 - 1)<span style=\"font-weight:bold\"> and </span><span style=\"color:rgb(57, 115, 0)\">_spender</span><span style=\"font-weight:bold\"> and </span>(320 - 1))<span style=\"color:rgb(57, 115, 0)\">]</span></code>\n<code></code>\n<code></code>\n<code>  <span style=\"color:rgb(111, 110, 111)\">#</code>\n<code>  #  Regular functions - see Tutorial for understanding quirks of the code</code>\n<code>  #</span></code>\n<code></code>\n<code></code>\n<code>  <span style=\"color:rgb(111, 110, 111)\"># folder failed in this function - may be terribly long, sorry</span></code>\n<code>  <span style=\"color:rgb(136, 0, 0)\">def </span>unknownc47d033b(?) <span style=\"color:rgb(136, 0, 0)\">payable</span>: <span style=\"color:rgb(111, 110, 111)\"></span></code>\n<code>    if (calldata.size - 4)<span style=\"font-weight:bold\"> < </span>32:</code>\n<code>        revert</code>\n<code>    else:</code>\n<code>        if not (320 - 1)<span style=\"font-weight:bold\"> or </span>not cd[4]:</code>\n<code>            revert</code>\n<code>        else:</code>\n<code>            <span style=\"color:rgb(136, 0, 0)\">mem[</span>0<span style=\"color:rgb(136, 0, 0)\">]</span> = (320 - 1)<span style=\"font-weight:bold\"> and </span>(320 - 1)<span style=\"font-weight:bold\"> and </span>cd[4]</code>\n<code>            <span style=\"color:rgb(136, 0, 0)\">mem[</span>32<span style=\"color:rgb(136, 0, 0)\">]</span> = 4</code>\n<code>            <span style=\"color:rgb(136, 0, 0)\">mem[</span>96<span style=\"color:rgb(136, 0, 0)\">]</span> = bool(<span style=\"color:rgb(57, 115, 0)\">stor4</span><span style=\"color:rgb(57, 115, 0)\">[</span>((320 - 1)<span style=\"font-weight:bold\"> and </span>(320 - 1)<span style=\"font-weight:bold\"> and </span>cd[4])<span style=\"color:rgb(57, 115, 0)\">]</span>)</code>\n<code>            return bool(<span style=\"color:rgb(57, 115, 0)\">stor4</span><span style=\"color:rgb(57, 115, 0)\">[</span>((320 - 1)<span style=\"font-weight:bold\"> and </span>(320 - 1)<span style=\"font-weight:bold\"> and </span>cd[4])<span style=\"color:rgb(57, 115, 0)\">]</span>)</code>\n<code></code>\n<code>  <span style=\"color:rgb(136, 0, 0)\">def </span>_fallback() <span style=\"color:rgb(136, 0, 0)\">payable</span>: <span style=\"color:rgb(111, 110, 111)\"># default function</span></code>\n<code>    revert</code>\n<code></code>\n"
+    end
+  end
+
+  describe "sort_contracts_by_version/1" do
+    test "sorts contracts in lexicographical order" do
+      contract2 = insert(:decompiled_smart_contract, decompiler_version: "v2")
+      contract1 = insert(:decompiled_smart_contract, decompiler_version: "v1")
+      contract3 = insert(:decompiled_smart_contract, decompiler_version: "v3")
+
+      result = AddressDecompiledContractView.sort_contracts_by_version([contract2, contract1, contract3])
+
+      assert result == [contract3, contract2, contract1]
+    end
+  end
+end

apps/block_scout_web/test/block_scout_web/views/layout_view_test.exs

@@ -60,4 +60,30 @@ defmodule BlockScoutWeb.LayoutViewTest do
       assert LayoutView.network_title() == "POA"
     end
   end
+
+  describe "release_link/1" do
+    test "use the version when there is no release_link env configured for it" do
+      Application.put_env(:block_scout_web, :release_link, nil)
+
+      assert LayoutView.release_link("1.3.4") == "1.3.4"
+    end
+
+    test "use the version when empty release_link env configured for it" do
+      Application.put_env(:block_scout_web, :release_link, "")
+
+      assert LayoutView.release_link("1.3.4") == "1.3.4"
+    end
+
+    test "use the enviroment release link when it's configured" do
+      Application.put_env(
+        :block_scout_web,
+        :release_link,
+        "https://github.com/poanetwork/blockscout/releases/tag/v1.3.4-beta"
+      )
+
+      assert LayoutView.release_link("1.3.4") ==
+               {:safe,
+                ~s(<a href="https://github.com/poanetwork/blockscout/releases/tag/v1.3.4-beta" class="footer-link" target="_blank">1.3.4</a>)}
+    end
+  end
 end

apps/block_scout_web/test/block_scout_web/views/transaction_view_test.exs

@@ -47,6 +47,30 @@ defmodule BlockScoutWeb.TransactionViewTest do
     end
   end
 
+  describe "erc721_token_transfer/2" do
+    test "finds token transfer" do
+      from_address_hash = "0x7a30272c902563b712245696f0a81c5a0e45ddc8"
+      to_address_hash = "0xb544cead8b660aae9f2e37450f7be2ffbc501793"
+      from_address = insert(:address, hash: from_address_hash)
+      to_address = insert(:address, hash: to_address_hash)
+      block = insert(:block)
+
+      transaction =
+        insert(:transaction,
+          input:
+            "0x23b872dd0000000000000000000000007a30272c902563b712245696f0a81c5a0e45ddc8000000000000000000000000b544cead8b660aae9f2e37450f7be2ffbc5017930000000000000000000000000000000000000000000000000000000000000002",
+          value: Decimal.new(0),
+          created_contract_address_hash: nil
+        )
+        |> with_block(block, status: :ok)
+
+      token_transfer =
+        insert(:token_transfer, from_address: from_address, to_address: to_address, transaction: transaction)
+
+      assert TransactionView.erc721_token_transfer(transaction, [token_transfer]) == token_transfer
+    end
+  end
+
   describe "processing_time_duration/2" do
     test "returns :pending if the transaction has no block" do
       transaction = build(:transaction, block: nil)

apps/ethereum_jsonrpc/config/config.exs

@@ -9,6 +9,14 @@ config :ethereum_jsonrpc, EthereumJSONRPC.RequestCoordinator,
   wait_per_timeout: :timer.seconds(20),
   max_jitter: :timer.seconds(2)
 
+# Add this configuration to add global RPC request throttling.
+# throttle_rate_limit: 250,
+# throttle_rolling_window_opts: [
+#   window_count: 4,
+#   duration: :timer.seconds(15),
+#   table: EthereumJSONRPC.RequestCoordinator.ThrottleCounter
+# ]
+
 config :ethereum_jsonrpc, EthereumJSONRPC.Tracer,
   service: :ethereum_jsonrpc,
   adapter: SpandexDatadog.Adapter,

apps/ethereum_jsonrpc/config/test.exs

@@ -7,7 +7,14 @@ config :ethereum_jsonrpc, EthereumJSONRPC.RequestCoordinator,
     table: EthereumJSONRPC.RequestCoordinator.TimeoutCounter
   ],
   wait_per_timeout: 2,
-  max_jitter: 1
+  max_jitter: 1,
+  # This should not actually limit anything in tests, but it is here to enable the relevant code for testing
+  throttle_rate_limit: 10_000,
+  throttle_rolling_window_opts: [
+    window_count: 4,
+    duration: :timer.seconds(1),
+    table: EthereumJSONRPC.RequestCoordinator.ThrottleCounter
+  ]
 
 config :ethereum_jsonrpc, EthereumJSONRPC.Tracer, disabled?: false
 

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc.ex

@@ -28,6 +28,7 @@ defmodule EthereumJSONRPC do
   alias EthereumJSONRPC.{
     Block,
     Blocks,
+    Contract,
     FetchedBalances,
     FetchedBeneficiaries,
     FetchedCodes,
@@ -160,33 +161,9 @@ defmodule EthereumJSONRPC do
       }
     ]}
   """
-  @spec execute_contract_functions(
+  @spec execute_contract_functions([Contract.call()], [map()], json_rpc_named_arguments) :: [Contract.call_result()]
-          [%{contract_address: String.t(), data: String.t(), id: String.t()}],
+  def execute_contract_functions(functions, abi, json_rpc_named_arguments) do
-          json_rpc_named_arguments,
+    Contract.execute_contract_functions(functions, abi, json_rpc_named_arguments)
-          [{:block_number, non_neg_integer()}]
-        ) :: {:ok, list()} | {:error, term()}
-  def execute_contract_functions(functions, json_rpc_named_arguments, opts \\ []) do
-    block_number = Keyword.get(opts, :block_number)
-
-    functions
-    |> Enum.map(&build_eth_call_payload(&1, block_number))
-    |> json_rpc(json_rpc_named_arguments)
-  end
-
-  defp build_eth_call_payload(
-         %{contract_address: address, data: data, id: id},
-         nil = _block_number
-       ) do
-    params = [%{to: address, data: data}, "latest"]
-    request(%{id: id, method: "eth_call", params: params})
-  end
-
-  defp build_eth_call_payload(
-         %{contract_address: address, data: data, id: id},
-         block_number
-       ) do
-    params = [%{to: address, data: data}, integer_to_quantity(block_number)]
-    request(%{id: id, method: "eth_call", params: params})
   end
 
   @doc """
@@ -287,6 +264,16 @@ defmodule EthereumJSONRPC do
     )
   end
 
+  @doc """
+  Fetches internal transactions for entire blocks from variant API.
+  """
+  def fetch_block_internal_transactions(params_list, json_rpc_named_arguments) when is_list(params_list) do
+    Keyword.fetch!(json_rpc_named_arguments, :variant).fetch_block_internal_transactions(
+      params_list,
+      json_rpc_named_arguments
+    )
+  end
+
   @doc """
   Fetches pending transactions from variant API.
   """
@@ -339,11 +326,18 @@ defmodule EthereumJSONRPC do
   @doc """
   Converts `t:quantity/0` to `t:non_neg_integer/0`.
   """
-  @spec quantity_to_integer(quantity) :: non_neg_integer()
+  @spec quantity_to_integer(quantity) :: non_neg_integer() | :error
   def quantity_to_integer("0x" <> hexadecimal_digits) do
     String.to_integer(hexadecimal_digits, 16)
   end
 
+  def quantity_to_integer(string) do
+    case Integer.parse(string) do
+      {integer, ""} -> integer
+      _ -> :error
+    end
+  end
+
   @doc """
   Converts `t:non_neg_integer/0` to `t:quantity/0`
   """
@@ -411,9 +405,13 @@ defmodule EthereumJSONRPC do
   Converts `t:timestamp/0` to `t:DateTime.t/0`
   """
   def timestamp_to_datetime(timestamp) do
-    timestamp
+    case quantity_to_integer(timestamp) do
-    |> quantity_to_integer()
+      :error ->
-    |> Timex.from_unix()
+        nil
+
+      quantity ->
+        Timex.from_unix(quantity)
+    end
   end
 
   defp fetch_blocks_by_params(params, request, json_rpc_named_arguments)

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/application.ex

@@ -9,16 +9,32 @@ defmodule EthereumJSONRPC.Application do
 
   @impl Application
   def start(_type, _args) do
-    rolling_window_opts =
+    config = Application.fetch_env!(:ethereum_jsonrpc, RequestCoordinator)
-      :ethereum_jsonrpc
-      |> Application.fetch_env!(RequestCoordinator)
-      |> Keyword.fetch!(:rolling_window_opts)
 
-    children = [
+    rolling_window_opts = Keyword.fetch!(config, :rolling_window_opts)
+
+    [
       :hackney_pool.child_spec(:ethereum_jsonrpc, recv_timeout: 60_000, timeout: 60_000, max_connections: 1000),
-      {RollingWindow, [rolling_window_opts]}
+      Supervisor.child_spec({RollingWindow, [rolling_window_opts]}, id: RollingWindow.ErrorThrottle)
     ]
+    |> add_throttle_rolling_window(config)
+    |> Supervisor.start_link(strategy: :one_for_one, name: EthereumJSONRPC.Supervisor)
+  end
+
+  defp add_throttle_rolling_window(children, config) do
+    if config[:throttle_rate_limit] do
+      case Keyword.fetch(config, :throttle_rolling_window_opts) do
+        {:ok, throttle_rolling_window_opts} ->
+          child =
+            Supervisor.child_spec({RollingWindow, [throttle_rolling_window_opts]}, id: RollingWindow.ThrottleRateLimit)
 
-    Supervisor.start_link(children, strategy: :one_for_one, name: EthereumJSONRPC.Supervisor)
+          [child | children]
+
+        :error ->
+          raise "If you have configured `:throttle_rate_limit` you must also configure `:throttle_rolling_window_opts`"
+      end
+    else
+      children
+    end
   end
 end

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/block.ex

@@ -431,7 +431,8 @@ defmodule EthereumJSONRPC.Block do
     Enum.into(block, %{}, &entry_to_elixir/1)
   end
 
-  defp entry_to_elixir({key, quantity}) when key in ~w(difficulty gasLimit gasUsed number size totalDifficulty) do
+  defp entry_to_elixir({key, quantity})
+       when key in ~w(difficulty gasLimit gasUsed minimumGasPrice number size totalDifficulty) do
     {key, quantity_to_integer(quantity)}
   end
 

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/contract.ex

@@ -0,0 +1,95 @@
+defmodule EthereumJSONRPC.Contract do
+  @moduledoc """
+  Smart contract functions executed by `eth_call`.
+  """
+
+  import EthereumJSONRPC, only: [integer_to_quantity: 1, json_rpc: 2, request: 1]
+
+  alias EthereumJSONRPC.Encoder
+
+  @typedoc """
+  Call to a smart contract function.
+
+  * `:block_number` - the block in which to execute the function. Defaults to the `nil` to indicate
+  the latest block as determined by the remote node, which may differ from the latest block number
+  in `Explorer.Chain`.
+  """
+  @type call :: %{
+          required(:contract_address) => String.t(),
+          required(:function_name) => String.t(),
+          required(:args) => [term()],
+          optional(:block_number) => EthereumJSONRPC.block_number()
+        }
+
+  @typedoc """
+  Result of calling a smart contract function.
+  """
+  @type call_result :: {:ok, term()} | {:error, String.t()}
+
+  @spec execute_contract_functions([call()], [map()], EthereumJSONRPC.json_rpc_named_arguments()) :: [call_result()]
+  def execute_contract_functions(requests, abi, json_rpc_named_arguments) do
+    functions =
+      abi
+      |> ABI.parse_specification()
+      |> Enum.into(%{}, &{&1.function, &1})
+
+    requests_with_index = Enum.with_index(requests)
+
+    indexed_responses =
+      requests_with_index
+      |> Enum.map(fn {%{contract_address: contract_address, function_name: function_name, args: args} = request, index} ->
+        functions[function_name]
+        |> Encoder.encode_function_call(args)
+        |> eth_call_request(contract_address, index, Map.get(request, :block_number))
+      end)
+      |> json_rpc(json_rpc_named_arguments)
+      |> case do
+        {:ok, responses} -> responses
+        {:error, {:bad_gateway, _request_url}} -> raise "Bad gateway"
+        {:error, reason} when is_atom(reason) -> raise Atom.to_string(reason)
+        {:error, error} -> raise error
+      end
+      |> Enum.into(%{}, &{&1.id, &1})
+
+    Enum.map(requests_with_index, fn {%{function_name: function_name}, index} ->
+      indexed_responses[index]
+      |> case do
+        nil ->
+          {:error, "No result"}
+
+        response ->
+          {^index, result} = Encoder.decode_result(response, functions[function_name])
+          result
+      end
+    end)
+  rescue
+    error ->
+      Enum.map(requests, fn _ -> format_error(error) end)
+  end
+
+  defp eth_call_request(data, contract_address, id, block_number) do
+    block =
+      case block_number do
+        nil -> "latest"
+        block_number -> integer_to_quantity(block_number)
+      end
+
+    request(%{
+      id: id,
+      method: "eth_call",
+      params: [%{to: contract_address, data: data}, block]
+    })
+  end
+
+  defp format_error(message) when is_binary(message) do
+    {:error, message}
+  end
+
+  defp format_error(%{message: error_message}) do
+    format_error(error_message)
+  end
+
+  defp format_error(error) do
+    format_error(Exception.message(error))
+  end
+end

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/encoder.ex

@@ -6,49 +6,19 @@ defmodule EthereumJSONRPC.Encoder do
 
   alias ABI.TypeDecoder
 
-  @doc """
-  Given an ABI and a set of functions, returns the data the blockchain expects.
-  """
-  @spec encode_abi([map()], %{String.t() => [any()]}) :: map()
-  def encode_abi(abi, functions) do
-    abi
-    |> ABI.parse_specification()
-    |> get_selectors(functions)
-    |> Enum.map(&encode_function_call/1)
-    |> Map.new()
-  end
-
-  @doc """
-  Given a list of function selectors from the ABI lib, and a list of functions names with their arguments, returns a list of selectors with their functions.
-  """
-  @spec get_selectors([%ABI.FunctionSelector{}], %{String.t() => [term()]}) :: [{%ABI.FunctionSelector{}, [term()]}]
-  def get_selectors(abi, functions) do
-    Enum.map(functions, fn {function_name, args} ->
-      {get_selector_from_name(abi, function_name), args}
-    end)
-  end
-
-  @doc """
-  Given a list of function selectors from the ABI lib, and a function name, get the selector for that function.
-  """
-  @spec get_selector_from_name([%ABI.FunctionSelector{}], String.t()) :: %ABI.FunctionSelector{}
-  def get_selector_from_name(abi, function_name) do
-    Enum.find(abi, fn selector -> function_name == selector.function end)
-  end
-
   @doc """
   Given a function selector and a list of arguments, returns their encoded versions.
 
   This is what is expected on the Json RPC data parameter.
   """
-  @spec encode_function_call({%ABI.FunctionSelector{}, [term()]}) :: {String.t(), String.t()}
+  @spec encode_function_call(%ABI.FunctionSelector{}, [term()]) :: String.t()
-  def encode_function_call({function_selector, args}) do
+  def encode_function_call(function_selector, args) do
     encoded_args =
       function_selector
       |> ABI.encode(parse_args(args))
       |> Base.encode16(case: :lower)
 
-    {function_selector.function, "0x" <> encoded_args}
+    "0x" <> encoded_args
   end
 
   defp parse_args(args) do
@@ -62,39 +32,16 @@ defmodule EthereumJSONRPC.Encoder do
     end)
   end
 
-  @doc """
-  Given a result set from the blockchain, and the functions selectors, returns the results decoded.
-
-  This functions assumes the result["id"] is the name of the function the result is for.
-  """
-  @spec decode_abi_results([map()], [map()], %{String.t() => [any()]}) :: map()
-  def decode_abi_results(results, abi, functions) do
-    selectors =
-      abi
-      |> ABI.parse_specification()
-      |> get_selectors(functions)
-      |> Enum.map(fn {selector, _args} -> selector end)
-
-    results
-    |> Stream.map(&join_result_and_selector(&1, selectors))
-    |> Stream.map(&decode_result/1)
-    |> Map.new()
-  end
-
-  defp join_result_and_selector(result, selectors) do
-    {result, Enum.find(selectors, &(&1.function == result[:id]))}
-  end
-
   @doc """
   Given a result from the blockchain, and the function selector, returns the result decoded.
   """
-  @spec decode_result({map(), %ABI.FunctionSelector{}}) ::
+  @spec decode_result(map(), %ABI.FunctionSelector{}) ::
           {String.t(), {:ok, any()} | {:error, String.t() | :invalid_data}}
-  def decode_result({%{error: %{code: code, message: message}, id: id}, _selector}) do
+  def decode_result(%{error: %{code: code, message: message}, id: id}, _selector) do
     {id, {:error, "(#{code}) #{message}"}}
   end
 
-  def decode_result({%{id: id, result: result}, function_selector}) do
+  def decode_result(%{id: id, result: result}, function_selector) do
     types_list = List.wrap(function_selector.returns)
 
     decoded_data =

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/ganache.ex

@@ -21,6 +21,14 @@ defmodule EthereumJSONRPC.Ganache do
   @impl EthereumJSONRPC.Variant
   def fetch_internal_transactions(_transactions_params, _json_rpc_named_arguments), do: :ignore
 
+  @doc """
+  Internal transaction fetching is not currently supported for Ganache.
+
+  To signal to the caller that fetching is not supported, `:ignore` is returned.
+  """
+  @impl EthereumJSONRPC.Variant
+  def fetch_block_internal_transactions(_block_range, _json_rpc_named_arguments), do: :ignore
+
   @doc """
   Pending transaction fetching is not supported currently for Ganache.
 

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/geth.ex

@@ -32,6 +32,14 @@ defmodule EthereumJSONRPC.Geth do
     end
   end
 
+  @doc """
+  Internal transaction fetching for entire blocks is not currently supported for Geth.
+
+  To signal to the caller that fetching is not supported, `:ignore` is returned.
+  """
+  @impl EthereumJSONRPC.Variant
+  def fetch_block_internal_transactions(_block_range, _json_rpc_named_arguments), do: :ignore
+
   @doc """
   Pending transaction fetching is not supported currently for Geth.
 

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/http.ex

@@ -68,6 +68,9 @@ defmodule EthereumJSONRPC.HTTP do
           chunked_json_rpc(tail, options, [decoded_body | decoded_response_bodies])
         end
 
+      {:error, :timeout} ->
+        rechunk_json_rpc(chunks, options, :timeout, decoded_response_bodies)
+
       {:error, _} = error ->
         error
     end

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/parity.ex

@@ -26,18 +26,26 @@ defmodule EthereumJSONRPC.Parity do
     end
   end
 
+  @doc """
+  Internal transaction fetching for individual transactions is no longer supported for Parity.
+
+  To signal to the caller that fetching is not supported, `:ignore` is returned.
+  """
+  @impl EthereumJSONRPC.Variant
+  def fetch_internal_transactions(_transactions_params, _json_rpc_named_arguments), do: :ignore
+
   @doc """
   Fetches the `t:Explorer.Chain.InternalTransaction.changeset/2` params from the Parity trace URL.
   """
   @impl EthereumJSONRPC.Variant
-  def fetch_internal_transactions(transactions_params, json_rpc_named_arguments) when is_list(transactions_params) do
+  def fetch_block_internal_transactions(block_numbers, json_rpc_named_arguments) when is_list(block_numbers) do
-    id_to_params = id_to_params(transactions_params)
+    id_to_params = id_to_params(block_numbers)
 
     with {:ok, responses} <-
            id_to_params
-           |> trace_replay_transaction_requests()
+           |> trace_replay_block_transactions_requests()
            |> json_rpc(json_rpc_named_arguments) do
-      trace_replay_transaction_responses_to_internal_transactions_params(responses, id_to_params)
+      trace_replay_block_transactions_responses_to_internal_transactions_params(responses, id_to_params)
     end
   end
 
@@ -68,9 +76,9 @@ defmodule EthereumJSONRPC.Parity do
     Enum.map(block_numbers, &%{block_quantity: integer_to_quantity(&1)})
   end
 
-  defp trace_replay_transaction_responses_to_internal_transactions_params(responses, id_to_params)
+  defp trace_replay_block_transactions_responses_to_internal_transactions_params(responses, id_to_params)
        when is_list(responses) and is_map(id_to_params) do
-    with {:ok, traces} <- trace_replay_transaction_responses_to_traces(responses, id_to_params) do
+    with {:ok, traces} <- trace_replay_block_transactions_responses_to_traces(responses, id_to_params) do
       params =
         traces
         |> Traces.to_elixir()
@@ -80,10 +88,10 @@ defmodule EthereumJSONRPC.Parity do
     end
   end
 
-  defp trace_replay_transaction_responses_to_traces(responses, id_to_params)
+  defp trace_replay_block_transactions_responses_to_traces(responses, id_to_params)
        when is_list(responses) and is_map(id_to_params) do
     responses
-    |> Enum.map(&trace_replay_transaction_response_to_traces(&1, id_to_params))
+    |> Enum.map(&trace_replay_block_transactions_response_to_traces(&1, id_to_params))
     |> Enum.reduce(
       {:ok, []},
       fn
@@ -115,48 +123,48 @@ defmodule EthereumJSONRPC.Parity do
     end
   end
 
-  defp trace_replay_transaction_response_to_traces(%{id: id, result: %{"trace" => traces}}, id_to_params)
+  defp trace_replay_block_transactions_response_to_traces(%{id: id, result: results}, id_to_params)
-       when is_list(traces) and is_map(id_to_params) do
+       when is_list(results) and is_map(id_to_params) do
-    %{block_number: block_number, hash_data: transaction_hash, transaction_index: transaction_index} =
+    block_number = Map.fetch!(id_to_params, id)
-      Map.fetch!(id_to_params, id)
 
     annotated_traces =
+      results
+      |> Stream.with_index()
+      |> Enum.flat_map(fn {%{"trace" => traces, "transactionHash" => transaction_hash}, transaction_index} ->
         traces
         |> Stream.with_index()
         |> Enum.map(fn {trace, index} ->
           Map.merge(trace, %{
             "blockNumber" => block_number,
-          "index" => index,
+            "transactionHash" => transaction_hash,
             "transactionIndex" => transaction_index,
-          "transactionHash" => transaction_hash
+            "index" => index
           })
         end)
+      end)
 
     {:ok, annotated_traces}
   end
 
-  defp trace_replay_transaction_response_to_traces(%{id: id, error: error}, id_to_params)
+  defp trace_replay_block_transactions_response_to_traces(%{id: id, error: error}, id_to_params)
        when is_map(id_to_params) do
-    %{block_number: block_number, hash_data: transaction_hash, transaction_index: transaction_index} =
+    block_number = Map.fetch!(id_to_params, id)
-      Map.fetch!(id_to_params, id)
 
     annotated_error =
       Map.put(error, :data, %{
-        "blockNumber" => block_number,
+        "blockNumber" => block_number
-        "transactionIndex" => transaction_index,
-        "transactionHash" => transaction_hash
       })
 
     {:error, annotated_error}
   end
 
-  defp trace_replay_transaction_requests(id_to_params) when is_map(id_to_params) do
+  defp trace_replay_block_transactions_requests(id_to_params) when is_map(id_to_params) do
-    Enum.map(id_to_params, fn {id, %{hash_data: hash_data}} ->
+    Enum.map(id_to_params, fn {id, block_number} ->
-      trace_replay_transaction_request(%{id: id, hash_data: hash_data})
+      trace_replay_block_transactions_request(%{id: id, block_number: block_number})
     end)
   end
 
-  defp trace_replay_transaction_request(%{id: id, hash_data: hash_data}) do
+  defp trace_replay_block_transactions_request(%{id: id, block_number: block_number}) do
-    request(%{id: id, method: "trace_replayTransaction", params: [hash_data, ["trace"]]})
+    request(%{id: id, method: "trace_replayBlockTransactions", params: [integer_to_quantity(block_number), ["trace"]]})
   end
 end

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/receipt.ex

@@ -274,10 +274,10 @@ defmodule EthereumJSONRPC.Receipt do
 
   defp entry_to_elixir({"status" = key, status}) do
     case status do
-      "0x0" ->
+      zero when zero in ["0x0", "0x00"] ->
         {:ok, {key, :error}}
 
-      "0x1" ->
+      one when one in ["0x1", "0x01"] ->
         {:ok, {key, :ok}}
 
       # pre-Byzantium / Ethereum Classic on Parity

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/request_coordinator.ex

@@ -18,9 +18,14 @@ defmodule EthereumJSONRPC.RequestCoordinator do
     the tracked window
   * `:max_jitter` - Maximimum amount of time in milliseconds to be added to each
     wait before multiplied by timeout count
+  * `:throttle_rolling_window_opts` - Options for the process tracking all requests
+    * `:window_count` - Number of windows
+    * `:duration` - Total amount of time to coumt events in milliseconds
+    * `:table` - name of the ets table to store the data in
+  * `:throttle_rate_limit` - The total number of requests allowed in the all windows.
 
   See the docs for `EthereumJSONRPC.RollingWindow` for more documentation for
-  `:rolling_window_opts`.
+  `:rolling_window_opts` and `:throttle_rolling_window_opts`.
 
   This is how the wait time for each request is calculated:
 
@@ -33,13 +38,20 @@ defmodule EthereumJSONRPC.RequestCoordinator do
       config :ethereum_jsonrpc, EthereumJSONRPC.RequestCoordinator,
         rolling_window_opts: [
           window_count: 6,
-          duration: :timer.seconds(10),
+          duration: :timer.minutes(1),
           table: EthereumJSONRPC.RequestCoordinator.TimeoutCounter
         ],
         wait_per_timeout: :timer.seconds(10),
         max_jitter: :timer.seconds(1)
+        throttle_rate_limit: 60,
+        throttle_rolling_window_opts: [
+          window_count: 3,
+          duration: :timer.seconds(10),
+          table: EthereumJSONRPC.RequestCoordinator.RequestCounter
+        ]
 
   With this configuration, timeouts are tracked for 6 windows of 10 seconds for a total of 1 minute.
+  Requests are tracked for 3 windows of 10 seconds, for a total of 30 seconds, and
   """
 
   require EthereumJSONRPC.Tracer
@@ -47,6 +59,7 @@ defmodule EthereumJSONRPC.RequestCoordinator do
   alias EthereumJSONRPC.{RollingWindow, Tracer, Transport}
 
   @error_key :throttleable_error_count
+  @throttle_key :throttle_requests_count
 
   @doc """
   Performs a JSON RPC request and adds necessary backoff.
@@ -64,12 +77,19 @@ defmodule EthereumJSONRPC.RequestCoordinator do
 
     if sleep_time <= throttle_timeout do
       :timer.sleep(sleep_time)
+      remaining_wait_time = throttle_timeout - sleep_time
 
+      case throttle_request(remaining_wait_time) do
+        :ok ->
           trace_request(request, fn ->
             request
             |> transport.json_rpc(transport_options)
             |> handle_transport_response()
           end)
+
+        :error ->
+          {:error, :timeout}
+      end
     else
       :timer.sleep(throttle_timeout)
 
@@ -91,33 +111,78 @@ defmodule EthereumJSONRPC.RequestCoordinator do
 
   defp handle_transport_response({:error, {:bad_gateway, _}} = error) do
     RollingWindow.inc(table(), @error_key)
+    inc_throttle_table()
     error
   end
 
   defp handle_transport_response({:error, :timeout} = error) do
     RollingWindow.inc(table(), @error_key)
+    inc_throttle_table()
     error
   end
 
-  defp handle_transport_response(response), do: response
+  defp handle_transport_response(response) do
+    inc_throttle_table()
+    response
+  end
+
+  defp inc_throttle_table do
+    if config(:throttle_rolling_window_opts) do
+      RollingWindow.inc(throttle_table(), @throttle_key)
+    end
+  end
+
+  defp throttle_request(
+         remaining_time,
+         rate_limit \\ config(:throttle_rate_limit),
+         opts \\ config(:throttle_rolling_window_opts)
+       ) do
+    if opts[:throttle_rate_limit] && RollingWindow.count(throttle_table(), @throttle_key) >= rate_limit do
+      if opts[:duration] >= remaining_time do
+        :timer.sleep(remaining_time)
+
+        :error
+      else
+        new_remaining_time = remaining_time - opts[:duration]
+        :timer.sleep(opts[:duration])
+
+        throttle_request(new_remaining_time, rate_limit, opts)
+      end
+    else
+      :ok
+    end
+  end
 
   defp sleep_time do
     wait_coefficient = RollingWindow.count(table(), @error_key)
-    jitter = :rand.uniform(config(:max_jitter))
+    jitter = :rand.uniform(config!(:max_jitter))
-    wait_per_timeout = config(:wait_per_timeout)
+    wait_per_timeout = config!(:wait_per_timeout)
 
     wait_coefficient * (wait_per_timeout + jitter)
   end
 
   defp table do
     :rolling_window_opts
-    |> config()
+    |> config!()
     |> Keyword.fetch!(:table)
   end
 
-  defp config(key) do
+  defp throttle_table do
+    case config(:throttle_rolling_window_opts) do
+      nil -> :ignore
+      keyword -> Keyword.fetch!(keyword, :table)
+    end
+  end
+
+  defp config!(key) do
     :ethereum_jsonrpc
     |> Application.get_env(__MODULE__)
     |> Keyword.fetch!(key)
   end
+
+  defp config(key) do
+    :ethereum_jsonrpc
+    |> Application.get_env(__MODULE__)
+    |> Keyword.get(key)
+  end
 end

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/transaction.ex

@@ -149,7 +149,8 @@ defmodule EthereumJSONRPC.Transaction do
     elixir_to_params(%{transaction | "input" => "0x"})
   end
 
-  def elixir_to_params(%{
+  def elixir_to_params(
+        %{
           "blockHash" => block_hash,
           "blockNumber" => block_number,
           "from" => from_address_hash,
@@ -164,8 +165,9 @@ defmodule EthereumJSONRPC.Transaction do
           "transactionIndex" => index,
           "v" => v,
           "value" => value
-      }) do
+        } = transaction
-    %{
+      ) do
+    result = %{
       block_hash: block_hash,
       block_number: block_number,
       from_address_hash: from_address_hash,
@@ -182,6 +184,12 @@ defmodule EthereumJSONRPC.Transaction do
       value: value,
       transaction_index: index
     }
+
+    if transaction["creates"] do
+      Map.put(result, :created_contract_address_hash, transaction["creates"])
+    else
+      result
+    end
   end
 
   # Ganache bug. it return `to: "0x0"` except of `to: null`

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/transactions.ex

@@ -56,7 +56,8 @@ defmodule EthereumJSONRPC.Transactions do
           to_address_hash: nil,
           v: "0xbd",
           value: 0,
-          transaction_index: 0
+          transaction_index: 0,
+          created_contract_address_hash: "0xffc87239eb0267bc3ca2cd51d12fbf278e02ccb4"
         }
       ]
 

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/variant.ex

@@ -43,6 +43,22 @@ defmodule EthereumJSONRPC.Variant do
               EthereumJSONRPC.json_rpc_named_arguments()
             ) :: {:ok, [internal_transaction_params]} | {:error, reason :: term} | :ignore
 
+  @doc """
+  Fetches the `t:Explorer.Chain.InternalTransaction.changeset/2` params from the variant of the Ethereum JSONRPC API.
+  Uses API for fetching all internal transactions in the block
+
+  ## Returns
+
+   * `{:ok, [internal_transaction_params]}` - internal transactions were successfully fetched for all blocks
+   * `{:error, reason}` - there was one or more errors with `reason` in fetching at least one of the blocks'
+       internal transactions
+   * `:ignore` - the variant does not support fetching internal transactions.
+  """
+  @callback fetch_block_internal_transactions(
+              [EthereumJSONRPC.block_number()],
+              EthereumJSONRPC.json_rpc_named_arguments()
+            ) :: {:ok, [internal_transaction_params]} | {:error, reason :: term} | :ignore
+
   @doc """
   Fetch the `t:Explorer.Chain.Transaction.changeset/2` params for pending transactions from the variant of the Ethereum
   JSONRPC API.

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/web_socket.ex

@@ -37,14 +37,14 @@ defmodule EthereumJSONRPC.WebSocket do
   @doc """
   Allow `c:start_link/1` to be called as part of a supervision tree.
   """
-  @callback child_spec([url :: String.t() | options :: term()]) :: Supervisor.child_spec()
+  @callback child_spec([(url :: String.t()) | (options :: term())]) :: Supervisor.child_spec()
 
   @doc """
   Starts web socket attached to `url` with `options`.
   """
   # Return is same as `t:GenServer.on_start/0`
-  @callback start_link([url :: String.t() | options :: term()]) ::
+  @callback start_link([(url :: String.t()) | (options :: term())]) ::
-              {:ok, pid()} | :ignore | {:error, {:already_started, pid()} | reason :: term()}
+              {:ok, pid()} | :ignore | {:error, {:already_started, pid()} | (reason :: term())}
 
   @doc """
   Run a single Remote Procedure Call (RPC) `t:EthereumJSONRPC.Transport.request/0` through `t:web_socket/0`.

apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/web_socket/web_socket_client.ex

@@ -50,7 +50,9 @@ defmodule EthereumJSONRPC.WebSocket.WebSocketClient do
 
   @impl WebSocket
   # only allow secure WSS
-  def start_link(["wss://" <> _ = url, gen_fsm_options]) when is_list(gen_fsm_options) do
+  def start_link(["wss://" <> _ = url, websocket_opts, gen_fsm_options]) when is_list(gen_fsm_options) do
+    keepalive = websocket_opts[:keepalive]
+
     fsm_name =
       case Keyword.fetch(gen_fsm_options, :name) do
         {:ok, name} when is_atom(name) -> {:local, name}
@@ -68,6 +70,7 @@ defmodule EthereumJSONRPC.WebSocket.WebSocketClient do
       __MODULE__,
       url,
       ssl_verify: :verify_peer,
+      keepalive: keepalive,
       socket_opts: [
         cacerts: :certifi.cacerts(),
         depth: 99,
@@ -78,7 +81,9 @@ defmodule EthereumJSONRPC.WebSocket.WebSocketClient do
     )
   end
 
-  def start_link(["ws://" <> _ = url, gen_fsm_options]) when is_list(gen_fsm_options) do
+  def start_link(["ws://" <> _ = url, websocket_opts, gen_fsm_options]) when is_list(gen_fsm_options) do
+    keepalive = websocket_opts[:keepalive]
+
     fsm_name =
       case Keyword.fetch(gen_fsm_options, :name) do
         {:ok, name} when is_atom(name) -> {:local, name}
@@ -90,7 +95,7 @@ defmodule EthereumJSONRPC.WebSocket.WebSocketClient do
       url,
       __MODULE__,
       url,
-      []
+      keepalive: keepalive
     )
   end
 

apps/ethereum_jsonrpc/lib/rsk.ex

@@ -0,0 +1,12 @@
+defmodule EthereumJSONRPC.RSK do
+  @moduledoc """
+  Ethereum JSONRPC methods that are/are not supported by [RSK](https://www.rsk.co/).
+  """
+
+  @behaviour EthereumJSONRPC.Variant
+
+  def fetch_internal_transactions(_, _), do: :ignore
+  def fetch_pending_transactions(_), do: :ignore
+  def fetch_block_internal_transactions(_block_numbers, _json_rpc_named_arguments), do: :ignore
+  def fetch_beneficiaries(_, _), do: :ignore
+end

apps/ethereum_jsonrpc/mix.exs

@@ -15,7 +15,7 @@ defmodule EthereumJsonrpc.MixProject do
         plt_add_apps: [:mix],
         ignore_warnings: "../../.dialyzer-ignore"
       ],
-      elixir: "~> 1.6",
+      elixir: "~> 1.8",
       elixirc_paths: elixirc_paths(Mix.env()),
       lockfile: "../../mix.lock",
       preferred_cli_env: [
@@ -80,7 +80,7 @@ defmodule EthereumJsonrpc.MixProject do
       # Tracing
       {:spandex, github: "spandex-project/spandex", branch: "allow-setting-trace-key", override: true},
       # `:spandex` integration with Datadog
-      {:spandex_datadog, "~> 0.3.1"},
+      {:spandex_datadog, "~> 0.4.0"},
       # Convert unix timestamps in JSONRPC to DateTimes
       {:timex, "~> 3.4"},
       # Encode/decode function names and arguments

apps/ethereum_jsonrpc/test/ethereum_jsonrpc/contract_test.exs

@@ -0,0 +1,134 @@
+defmodule EthereumJSONRPC.ContractTest do
+  use ExUnit.Case, async: true
+
+  doctest EthereumJSONRPC.Contract
+
+  import Mox
+
+  describe "execute_contract_functions/3" do
+    test "executes the functions with and without the block_number, returns results in order" do
+      json_rpc_named_arguments = Application.get_env(:explorer, :json_rpc_named_arguments)
+
+      abi = [
+        %{
+          "constant" => false,
+          "inputs" => [],
+          "name" => "get1",
+          "outputs" => [%{"name" => "", "type" => "uint256"}],
+          "payable" => false,
+          "stateMutability" => "nonpayable",
+          "type" => "function"
+        },
+        %{
+          "constant" => true,
+          "inputs" => [],
+          "name" => "get2",
+          "outputs" => [%{"name" => "", "type" => "uint256"}],
+          "payable" => false,
+          "stateMutability" => "view",
+          "type" => "function"
+        },
+        %{
+          "constant" => true,
+          "inputs" => [],
+          "name" => "get3",
+          "outputs" => [%{"name" => "", "type" => "uint256"}],
+          "payable" => false,
+          "stateMutability" => "view",
+          "type" => "function"
+        }
+      ]
+
+      contract_address = "0x0000000000000000000000000000000000000000"
+
+      functions = [
+        %{contract_address: contract_address, function_name: "get1", args: []},
+        %{contract_address: contract_address, function_name: "get2", args: [], block_number: 1000},
+        %{contract_address: contract_address, function_name: "get3", args: []}
+      ]
+
+      expect(
+        EthereumJSONRPC.Mox,
+        :json_rpc,
+        fn requests, _options ->
+          {:ok,
+           requests
+           |> Enum.map(fn
+             %{id: id, method: "eth_call", params: [%{data: "0x054c1a75", to: ^contract_address}, "latest"]} ->
+               %{
+                 id: id,
+                 result: "0x000000000000000000000000000000000000000000000000000000000000002a"
+               }
+
+             %{id: id, method: "eth_call", params: [%{data: "0xd2178b08", to: ^contract_address}, "0x3E8"]} ->
+               %{
+                 id: id,
+                 result: "0x0000000000000000000000000000000000000000000000000000000000000034"
+               }
+
+             %{id: id, method: "eth_call", params: [%{data: "0x8321045c", to: ^contract_address}, "latest"]} ->
+               %{
+                 id: id,
+                 error: %{code: -32015, data: "something", message: "Some error"}
+               }
+           end)
+           |> Enum.shuffle()}
+        end
+      )
+
+      blockchain_result = [
+        {:ok, [42]},
+        {:ok, [52]},
+        {:error, "(-32015) Some error"}
+      ]
+
+      assert EthereumJSONRPC.execute_contract_functions(
+               functions,
+               abi,
+               json_rpc_named_arguments
+             ) == blockchain_result
+    end
+
+    test "returns errors if JSONRPC request fails" do
+      json_rpc_named_arguments = Application.get_env(:explorer, :json_rpc_named_arguments)
+
+      abi = [
+        %{
+          "constant" => false,
+          "inputs" => [],
+          "name" => "get",
+          "outputs" => [%{"name" => "", "type" => "uint256"}],
+          "payable" => false,
+          "stateMutability" => "nonpayable",
+          "type" => "function"
+        }
+      ]
+
+      contract_address = "0x0000000000000000000000000000000000000000"
+
+      functions = [
+        %{contract_address: contract_address, function_name: "get", args: []},
+        %{contract_address: contract_address, function_name: "get", args: [], block_number: 1000}
+      ]
+
+      expect(
+        EthereumJSONRPC.Mox,
+        :json_rpc,
+        fn _requests, _options ->
+          {:error, "Some error"}
+        end
+      )
+
+      blockchain_result = [
+        {:error, "Some error"},
+        {:error, "Some error"}
+      ]
+
+      assert EthereumJSONRPC.execute_contract_functions(
+               functions,
+               abi,
+               json_rpc_named_arguments
+             ) == blockchain_result
+    end
+  end
+end

apps/ethereum_jsonrpc/test/ethereum_jsonrpc/encoder_test.exs

@@ -13,7 +13,7 @@ defmodule EthereumJSONRPC.EncoderTest do
         types: []
       }
 
-      assert Encoder.encode_function_call({function_selector, []}) == {"get", "0x6d4ce63c"}
+      assert Encoder.encode_function_call(function_selector, []) == "0x6d4ce63c"
     end
 
     test "generates the correct encoding with arguments" do
@@ -23,8 +23,8 @@ defmodule EthereumJSONRPC.EncoderTest do
         types: [{:uint, 256}]
       }
 
-      assert Encoder.encode_function_call({function_selector, [10]}) ==
+      assert Encoder.encode_function_call(function_selector, [10]) ==
-               {"get", "0x9507d39a000000000000000000000000000000000000000000000000000000000000000a"}
+               "0x9507d39a000000000000000000000000000000000000000000000000000000000000000a"
     end
 
     test "generates the correct encoding with addresses arguments" do
@@ -36,127 +36,12 @@ defmodule EthereumJSONRPC.EncoderTest do
 
       args = ["0xdab1c67232f92b7707f49c08047b96a4db7a9fc6", "0x6937cb25eb54bc013b9c13c47ab38eb63edd1493"]
 
-      assert Encoder.encode_function_call({function_selector, args}) ==
+      assert Encoder.encode_function_call(function_selector, args) ==
-               {"tokens",
+               "0x508493bc000000000000000000000000dab1c67232f92b7707f49c08047b96a4db7a9fc60000000000000000000000006937cb25eb54bc013b9c13c47ab38eb63edd1493"
-                "0x508493bc000000000000000000000000dab1c67232f92b7707f49c08047b96a4db7a9fc60000000000000000000000006937cb25eb54bc013b9c13c47ab38eb63edd1493"}
     end
   end
 
-  describe "get_selectors/2" do
+  describe "decode_result/2" do
-    test "return the selectors of the desired functions with their arguments" do
-      abi = [
-        %ABI.FunctionSelector{
-          function: "fn1",
-          returns: {:uint, 256},
-          types: [uint: 256]
-        },
-        %ABI.FunctionSelector{
-          function: "fn2",
-          returns: {:uint, 256},
-          types: [uint: 256]
-        }
-      ]
-
-      fn1 = %ABI.FunctionSelector{
-        function: "fn1",
-        returns: {:uint, 256},
-        types: [uint: 256]
-      }
-
-      assert Encoder.get_selectors(abi, %{"fn1" => [10]}) == [{fn1, [10]}]
-    end
-  end
-
-  describe "get_selector_from_name/2" do
-    test "return the selector of the desired function" do
-      abi = [
-        %ABI.FunctionSelector{
-          function: "fn1",
-          returns: {:uint, 256},
-          types: [uint: 256]
-        },
-        %ABI.FunctionSelector{
-          function: "fn2",
-          returns: {:uint, 256},
-          types: [uint: 256]
-        }
-      ]
-
-      fn1 = %ABI.FunctionSelector{
-        function: "fn1",
-        returns: {:uint, 256},
-        types: [uint: 256]
-      }
-
-      assert Encoder.get_selector_from_name(abi, "fn1") == fn1
-    end
-  end
-
-  describe "decode_abi_results/3" do
-    test "separates the selectors and map the results" do
-      result = [
-        %{
-          id: "get1",
-          jsonrpc: "2.0",
-          result: "0x000000000000000000000000000000000000000000000000000000000000002a"
-        },
-        %{
-          id: "get2",
-          jsonrpc: "2.0",
-          result: "0x000000000000000000000000000000000000000000000000000000000000002a"
-        },
-        %{
-          id: "get3",
-          jsonrpc: "2.0",
-          result: "0x0000000000000000000000000000000000000000000000000000000000000020"
-        }
-      ]
-
-      abi = [
-        %{
-          "constant" => false,
-          "inputs" => [],
-          "name" => "get1",
-          "outputs" => [%{"name" => "", "type" => "uint256"}],
-          "payable" => false,
-          "stateMutability" => "nonpayable",
-          "type" => "function"
-        },
-        %{
-          "constant" => true,
-          "inputs" => [],
-          "name" => "get2",
-          "outputs" => [%{"name" => "", "type" => "uint256"}],
-          "payable" => false,
-          "stateMutability" => "view",
-          "type" => "function"
-        },
-        %{
-          "constant" => true,
-          "inputs" => [],
-          "name" => "get3",
-          "outputs" => [%{"name" => "", "type" => "uint256"}],
-          "payable" => false,
-          "stateMutability" => "view",
-          "type" => "function"
-        }
-      ]
-
-      functions = %{
-        "get1" => [],
-        "get2" => [],
-        "get3" => []
-      }
-
-      assert Encoder.decode_abi_results(result, abi, functions) == %{
-               "get1" => {:ok, [42]},
-               "get2" => {:ok, [42]},
-               "get3" => {:ok, [32]}
-             }
-    end
-  end
-
-  describe "decode_result/1" do
     test "correctly decodes the blockchain result" do
       result = %{
         id: "sum",
@@ -170,7 +55,7 @@ defmodule EthereumJSONRPC.EncoderTest do
         types: [{:uint, 256}]
       }
 
-      assert Encoder.decode_result({result, selector}) == {"sum", {:ok, [42]}}
+      assert Encoder.decode_result(result, selector) == {"sum", {:ok, [42]}}
     end
 
     test "correctly handles the blockchain error response" do
@@ -189,7 +74,7 @@ defmodule EthereumJSONRPC.EncoderTest do
         types: [{:uint, 256}]
       }
 
-      assert Encoder.decode_result({result, selector}) ==
+      assert Encoder.decode_result(result, selector) ==
                {"sum", {:error, "(-32602) Invalid params: Invalid hex: Invalid character 'x' at position 134."}}
     end
 
@@ -199,7 +84,7 @@ defmodule EthereumJSONRPC.EncoderTest do
 
       selector = %ABI.FunctionSelector{function: "name", types: [], returns: [:string]}
 
-      assert Encoder.decode_result({%{id: "storedName", result: result}, selector}) == {"storedName", {:ok, ["AION"]}}
+      assert Encoder.decode_result(%{id: "storedName", result: result}, selector) == {"storedName", {:ok, ["AION"]}}
     end
   end
 end