CipherLabs
/
blockscout
mirror of https://github.com/blockscout/blockscout
2
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'master' into ab-check-if-contract-has-arguments

Browse Source
pull/1898/head
Ayrat Badykov 6 years ago committed by GitHub
parent 7acf983c9b 81956d27f2
commit 65246b4bb6
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 209 additions and 34 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 1
      CHANGELOG.md
  2. 238
      apps/block_scout_web/lib/block_scout_web/views/address_decompiled_contract_view.ex
  3. 4
      apps/block_scout_web/test/block_scout_web/views/address_decompiled_contract_view_test.exs

1
CHANGELOG.md
Unescape View File

@ -21,6 +21,7 @@
- [#1869](https://github.com/poanetwork/blockscout/pull/1869) - Fix output and gas extraction in JS tracer for Geth
- [#1868](https://github.com/poanetwork/blockscout/pull/1868) - fix: logs list endpoint performance
- [#1822](https://github.com/poanetwork/blockscout/pull/1822) - Fix style breaks in decompiled contract code view
- [#1885](https://github.com/poanetwork/blockscout/pull/1885) - highlight reserved words in decompiled code
- [#1896](https://github.com/poanetwork/blockscout/pull/1896) - re-query tokens in top nav automplete
- [#1881](https://github.com/poanetwork/blockscout/pull/1881) - fix: store solc versions locally for performance
- [#1898](https://github.com/poanetwork/blockscout/pull/1898) - check if the constructor has arguments before verifying constructor arguments

238
apps/block_scout_web/lib/block_scout_web/views/address_decompiled_contract_view.ex
Unescape View File

@ -2,51 +2,231 @@ defmodule BlockScoutWeb.AddressDecompiledContractView do
use BlockScoutWeb, :view
@colors %{
"\e[95m" => "136, 0, 0",
"\e[95m" => "",
# red
"\e[91m" => "236, 89, 58",
"\e[91m" => "",
# gray
"\e[38;5;8m" => "111, 110, 111",
"\e[38;5;8m" => "<span style=\"color:rgb(111, 110, 111)\">",
# green
"\e[32m" => "57, 115, 0",
"\e[32m" => "",
# yellowgreen
"\e[93m" => "57, 115, 0",
"\e[93m" => "",
# yellow
"\e[92m" => "119, 232, 81",
"\e[92m" => "",
# red
"\e[94m" => "136, 0, 0"
"\e[94m" => ""
}
@comment_start "#"
@reserved_words_types [
"var",
"bool",
"string",
"int",
"uint",
"int8",
"uint8",
"int16",
"uint16",
"int24",
"uint24",
"int32",
"uint32",
"int40",
"uint40",
"int48",
"uint48",
"int56",
"uint56",
"int64",
"uint64",
"int72",
"uint72",
"int80",
"uint80",
"int88",
"uint88",
"int96",
"uint96",
"int104",
"uint104",
"int112",
"uint112",
"int120",
"uint120",
"int128",
"uint128",
"int136",
"uint136",
"int144",
"uint144",
"int152",
"uint152",
"int160",
"uint160",
"int168",
"uint168",
"int176",
"uint176",
"int184",
"uint184",
"int192",
"uint192",
"int200",
"uint200",
"int208",
"uint208",
"int216",
"uint216",
"int224",
"uint224",
"int232",
"uint232",
"int240",
"uint240",
"int248",
"uint248",
"int256",
"uint256",
"byte",
"bytes",
"bytes1",
"bytes2",
"bytes3",
"bytes4",
"bytes5",
"bytes6",
"bytes7",
"bytes8",
"bytes9",
"bytes10",
"bytes11",
"bytes12",
"bytes13",
"bytes14",
"bytes15",
"bytes16",
"bytes17",
"bytes18",
"bytes19",
"bytes20",
"bytes21",
"bytes22",
"bytes23",
"bytes24",
"bytes25",
"bytes26",
"bytes27",
"bytes28",
"bytes29",
"bytes30",
"bytes31",
"bytes32",
"true",
"false",
"enum",
"struct",
"mapping",
"address"
]
@reserved_words_keywords [
"def",
"require",
"revert",
"return",
"assembly",
"memory",
"mem"
]
@modifiers [
"payable",
"public",
"view",
"pure",
"returns",
"internal"
]
@reserved_words @reserved_words_keywords ++ @reserved_words_types
@reserved_words_regexp ([@comment_start | @reserved_words] ++ @modifiers)
|> Enum.reduce("", fn el, acc -> acc <> "|" <> el end)
|> Regex.compile!()
def highlight_decompiled_code(code) do
{_, result} =
@colors
|> Enum.reduce(code, fn {symbol, rgb}, acc ->
String.replace(acc, symbol, "<span style=\"color:rgb(#{rgb})\">")
String.replace(acc, symbol, rgb)
end)
|> String.replace("\e[1m", "<span style=\"font-weight:bold\">")
|> String.replace("»", "&raquo;")
|> String.replace("\e[0m", "</span>")
|> String.split(~r/\<span style=.*?\)"\>|\<\/span\>/, include_captures: true, trim: true)
|> Enum.reduce({"", []}, fn part, {style, acc} ->
new_style =
cond do
String.contains?(part, "<span style") -> part
part == "</span>" -> ""
true -> style
end
new_part = new_part(part, new_style)
{new_style, [new_part | acc]}
end)
|> add_styles_to_every_line()
result
|> Enum.reduce("", fn part, acc ->
part <> acc
end)
|> add_styles_to_reserved_words()
|> add_line_numbers()
end
defp add_styles_to_every_line(lines) do
lines
|> Enum.reduce({"", []}, fn part, {style, acc} ->
new_style =
cond do
String.contains?(part, "<span style") -> part
part == "</span>" -> ""
true -> style
end
new_part = new_part(part, new_style)
{new_style, [new_part | acc]}
end)
end
defp add_styles_to_reserved_words(code) do
code
|> String.split("\n")
|> Enum.map(fn line ->
add_styles_to_line(line)
end)
|> Enum.reduce("", fn el, acc ->
acc <> el <> "\n"
end)
end
defp add_styles_to_line(line) do
parts =
line
|> String.split(@reserved_words_regexp,
include_captures: true
)
comment_position = Enum.find_index(parts, fn part -> part == "#" end)
parts
|> Enum.with_index()
|> Enum.map(fn {el, index} ->
cond do
!(is_nil(comment_position) || comment_position > index) -> el
el in @reserved_words -> "<span class=\"hljs-keyword\">" <> el <> "</span>"
el in @modifiers -> "<span class=\"hljs-title\">" <> el <> "</span>"
true -> el
end
end)
|> Enum.reduce("", fn el, acc ->
acc <> el
end)
end
def sort_contracts_by_version(decompiled_contracts) do
decompiled_contracts
|> Enum.sort_by(& &1.decompiler_version)
@ -76,18 +256,12 @@ defmodule BlockScoutWeb.AddressDecompiledContractView do
part
true ->
result =
part
|> String.split("\n")
|> Enum.reduce("", fn p, a ->
a <> new_style <> p <> "</span>\n"
end)
if String.ends_with?(part, "\n") do
result
else
String.slice(result, 0..-2)
end
part
|> String.split("\n")
|> Enum.reduce("", fn p, a ->
a <> new_style <> p <> "</span>\n"
end)
|> String.slice(0..-2)
end
end
end

4
apps/block_scout_web/test/block_scout_web/views/address_decompiled_contract_view_test.exs
Unescape View File

@ -56,7 +56,7 @@ defmodule BlockScoutWeb.AddressDecompiledContractViewTest do
result = AddressDecompiledContractView.highlight_decompiled_code(code)
assert result ==
"<code> <span style=\"color:rgb(111, 110, 111)\">#</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # eveem.org 6 Feb 2019</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # Decompiled source of </span>0x00Bd9e214FAb74d6fC21bf1aF34261765f57e875<span style=\"color:rgb(111, 110, 111)\"></span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> #</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # Let's make the world open source</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # </span></code>\n<code> <span style=\"color:rgb(111, 110, 111)\">#</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # I failed with these:</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> </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)\"></span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> </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)\"></span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # All the rest is below.</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> #</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>: 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)\">#</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # Regular functions - see Tutorial for understanding quirks of the code</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> #</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>: 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>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"
"<code> <span style=\"color:rgb(111, 110, 111)\">#</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # eveem.org 6 Feb 2019</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # Decompiled source of </span>0x00Bd9e214FAb74d6fC21bf1aF34261765f57e875<span style=\"color:rgb(111, 110, 111)\"></span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> #</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # Let's make the world open source</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # </span></code>\n<code> <span style=\"color:rgb(111, 110, 111)\">#</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # I failed with these:</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> </span><span style=\"color:rgb(111, 110, 111)\"># - </span>unknowne77c646d(?)<span style=\"color:rgb(111, 110, 111)\"></span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> </span><span style=\"color:rgb(111, 110, 111)\"># - </span>transferFromWithData(address _from, address _to, uint256 _value, bytes _data)<span style=\"color:rgb(111, 110, 111)\"></span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # All the rest is below.</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> #</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 class=\"hljs-keyword\">def</span> storage:</code>\n<code> allowance is <span class=\"hljs-keyword\">uint</span>256 => <span class=\"hljs-keyword\">uint</span>256 <span style=\"color:rgb(111, 110, 111)\"># mask(256, 0) at storage #2</span></code>\n<code> stor4 is <span class=\"hljs-keyword\">uint</span>256 => <span class=\"hljs-keyword\">uint</span>8 <span style=\"color:rgb(111, 110, 111)\"># mask(8, 0) at storage #4</span></code>\n<code></code>\n<code> <span class=\"hljs-keyword\">def</span> allowance(<span class=\"hljs-keyword\">address</span> _owner, <span class=\"hljs-keyword\">address</span> _spender) <span class=\"hljs-title\">payable</span>: 64</code>\n<code> <span class=\"hljs-keyword\">return</span> allowance[_owner_spender(320 - 1))]</code>\n<code></code>\n<code></code>\n<code> <span style=\"color:rgb(111, 110, 111)\">#</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # Regular functions - see Tutorial for understanding quirks of the code</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> #</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 class=\"hljs-keyword\">def</span> unknownc47d033b(?) <span class=\"hljs-title\">payable</span>: not cd[4]:</code>\n<code> <span class=\"hljs-keyword\">revert</span></code>\n<code> else:</code>\n<code> <span class=\"hljs-keyword\">mem</span>[0]cd[4]</code>\n<code> <span class=\"hljs-keyword\">mem</span>[32] = 4</code>\n<code> <span class=\"hljs-keyword\">mem</span>[96] = <span class=\"hljs-keyword\">bool</span>(stor4[cd[4])])</code>\n<code> <span class=\"hljs-keyword\">return</span> <span class=\"hljs-keyword\">bool</span>(stor4[cd[4])])</code>\n<code></code>\n<code> <span class=\"hljs-keyword\">def</span> _fallback() <span class=\"hljs-title\">payable</span>: <span style=\"color:rgb(111, 110, 111)\"># default function</span></code>\n<code> <span class=\"hljs-keyword\">revert</span></code>\n<code></code>\n<code></code>\n"
end
test "adds style span to every line" do
@ -70,7 +70,7 @@ defmodule BlockScoutWeb.AddressDecompiledContractViewTest do
"""
assert AddressDecompiledContractView.highlight_decompiled_code(code) ==
"<code> <span style=\"color:rgb(111, 110, 111)\">#</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # eveem.org 6 Feb 2019</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # Decompiled source of </span>0x00Bd9e214FAb74d6fC21bf1aF34261765f57e875<span style=\"color:rgb(111, 110, 111)\"></span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> #</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # Let's make the world open source</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # </span></code>\n<code></code>\n"
"<code> <span style=\"color:rgb(111, 110, 111)\">#</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # eveem.org 6 Feb 2019</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # Decompiled source of </span>0x00Bd9e214FAb74d6fC21bf1aF34261765f57e875<span style=\"color:rgb(111, 110, 111)\"></span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> #</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # Let's make the world open source</span></code>\n<code><span style=\"color:rgb(111, 110, 111)\"> # </span></code>\n<code></code>\n<code></code>\n"
end
end

Write Preview
Loading…
Cancel
Save