Merge pull request #2592 from poanetwork/ab-add-new-whisper-metadata-format

process new metadata format for whisper

CHANGELOG.md

@@ -6,6 +6,7 @@
 - [#2497](https://github.com/poanetwork/blockscout/pull/2497) - Add generic Ordered Cache behaviour and implementation
 
 ### Fixes
+- [#2592](https://github.com/poanetwork/blockscout/pull/2592) - process new metadata format for whisper
 - [#2572](https://github.com/poanetwork/blockscout/pull/2572) - Ease non-critical css
 - [#2570](https://github.com/poanetwork/blockscout/pull/2570) - Network icons preload
 - [#2569](https://github.com/poanetwork/blockscout/pull/2569) - do not fetch emission rewards for transactions csv exporter

apps/block_scout_web/mix.exs

@@ -99,7 +99,7 @@ defmodule BlockScoutWeb.Mixfile do
       {:logger_file_backend, "~> 0.0.10"},
       {:math, "~> 0.3.0"},
       {:mock, "~> 0.3.0", only: [:test], runtime: false},
-      {:phoenix, "~> 1.4"},
+      {:phoenix, "== 1.4.0"},
       {:phoenix_ecto, "~> 4.0"},
       {:phoenix_html, "~> 2.10"},
       {:phoenix_live_reload, "~> 1.2", only: [:dev]},

apps/explorer/lib/explorer/smart_contract/verifier.ex

@@ -115,6 +115,14 @@ defmodule Explorer.SmartContract.Verifier do
         |> Enum.reverse()
         |> :binary.list_to_bin()
 
+      # Solidity >= 0.5.11 https://github.com/ethereum/solidity/blob/develop/Changelog.md#0511-2019-08-12
+      # Metadata: Update the swarm hash to the current specification, changes bzzr0 to bzzr1 and urls to use bzz-raw://
+      "a265627a7a72315820" <>
+          <<_::binary-size(64)>> <> "64736f6c6343" <> <<_::binary-size(6)>> <> "0032" <> _constructor_arguments ->
+        extracted
+        |> Enum.reverse()
+        |> :binary.list_to_bin()
+
       <<next::binary-size(2)>> <> rest ->
         do_extract_bytecode([next | extracted], rest)
     end

apps/explorer/lib/explorer/smart_contract/verifier/constructor_arguments.ex

@@ -48,6 +48,16 @@ defmodule Explorer.SmartContract.Verifier.ConstructorArguments do
           extract_constructor_arguments(constructor_arguments, passed_constructor_arguments)
         end
 
+      # Solidity >= 0.5.11 https://github.com/ethereum/solidity/blob/develop/Changelog.md#0511-2019-08-12
+      # Metadata: Update the swarm hash to the current specification, changes bzzr0 to bzzr1 and urls to use bzz-raw://
+      "a265627a7a72315820" <>
+          <<_::binary-size(64)>> <> "64736f6c6343" <> <<_::binary-size(6)>> <> "0032" <> constructor_arguments ->
+        if passed_constructor_arguments == constructor_arguments do
+          true
+        else
+          extract_constructor_arguments(constructor_arguments, passed_constructor_arguments)
+        end
+
       <<>> ->
         passed_constructor_arguments == ""
 

apps/explorer/test/explorer/smart_contract/verifier_test.exs

@@ -56,6 +56,33 @@ defmodule Explorer.SmartContract.VerifierTest do
       assert abi != nil
     end
 
+    test "verifies smart contract with new `whisper` metadata (bzz0 => bzz1) in solidity 0.5.11" do
+      contract_data =
+        "#{File.cwd!()}/test/support/fixture/smart_contract/solidity_5.11_new_whisper_metadata.json"
+        |> File.read!()
+        |> Jason.decode!()
+
+      compiler_version = contract_data["compiler_version"]
+      name = contract_data["name"]
+      optimize = false
+      contract = contract_data["contract"]
+      expected_bytecode = contract_data["bytecode"]
+      evm_version = contract_data["evm_version"]
+
+      contract_address = insert(:contract_address, contract_code: "0x" <> expected_bytecode)
+
+      params = %{
+        "contract_source_code" => contract,
+        "compiler_version" => compiler_version,
+        "evm_version" => evm_version,
+        "name" => name,
+        "optimization" => optimize
+      }
+
+      assert {:ok, %{abi: abi}} = Verifier.evaluate_authenticity(contract_address.hash, params)
+      assert abi != nil
+    end
+
     test "verifies smart contract with constructor arguments", %{
       contract_code_info: contract_code_info
     } do

mix.lock

@@ -81,7 +81,7 @@
   "optimal": {:hex, :optimal, "0.3.6", "46bbf52fbbbd238cda81e02560caa84f93a53c75620f1fe19e81e4ae7b07d1dd", [:mix], [], "hexpm"},
   "parallel_stream": {:hex, :parallel_stream, "1.0.6", "b967be2b23f0f6787fab7ed681b4c45a215a81481fb62b01a5b750fa8f30f76c", [:mix], [], "hexpm"},
   "parse_trans": {:hex, :parse_trans, "3.2.0", "2adfa4daf80c14dc36f522cf190eb5c4ee3e28008fc6394397c16f62a26258c2", [:rebar3], [], "hexpm"},
-  "phoenix": {:hex, :phoenix, "1.4.9", "746d098e10741c334d88143d3c94cab1756435f94387a63441792e66ec0ee974", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:phoenix_pubsub, "~> 1.1", [hex: :phoenix_pubsub, repo: "hexpm", optional: false]}, {:plug, "~> 1.8.1 or ~> 1.9", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 1.0 or ~> 2.0", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm"},
+  "phoenix": {:hex, :phoenix, "1.4.0", "56fe9a809e0e735f3e3b9b31c1b749d4b436e466d8da627b8d82f90eaae714d2", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:phoenix_pubsub, "~> 1.1", [hex: :phoenix_pubsub, repo: "hexpm", optional: false]}, {:plug, "~> 1.7", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 1.0 or ~> 2.0", [hex: :plug_cowboy, repo: "hexpm", optional: true]}], "hexpm"},
   "phoenix_ecto": {:hex, :phoenix_ecto, "4.0.0", "c43117a136e7399ea04ecaac73f8f23ee0ffe3e07acfcb8062fe5f4c9f0f6531", [:mix], [{:ecto, "~> 3.0", [hex: :ecto, repo: "hexpm", optional: false]}, {:phoenix_html, "~> 2.9", [hex: :phoenix_html, repo: "hexpm", optional: true]}, {:plug, "~> 1.0", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm"},
   "phoenix_form_awesomplete": {:hex, :phoenix_form_awesomplete, "0.1.5", "d09aade160b584e3428e1e095645482396f17bddda4f566f1118f12d2598d11c", [:mix], [{:phoenix_html, "~> 2.10", [hex: :phoenix_html, repo: "hexpm", optional: false]}], "hexpm"},
   "phoenix_html": {:hex, :phoenix_html, "2.13.3", "850e292ff6e204257f5f9c4c54a8cb1f6fbc16ed53d360c2b780a3d0ba333867", [:mix], [{:plug, "~> 1.5", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm"},