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patterns: Disallow calling of dangerous functions by default

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Closes #330
This commit is contained in:
WerWolv
2021-12-19 12:32:15 +01:00
parent 0efb226c2f
commit 376cb01a16
13 changed files with 128 additions and 25 deletions
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32
plugins/builtin/source/content/pl_builtin_functions.cpp
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@@ -206,12 +206,12 @@ namespace hex::plugin::builtin {
auto string = Token::literalToString(params[0], false);
auto index = Token::literalToSigned(params[1]);
#if defined(OS_MACOS)
const auto signIndex = index >> (sizeof(index) * 8 - 1);
const auto absIndex = (index ^ signIndex) - signIndex;
#else
const auto absIndex = std::abs(index);
#endif
#if defined(OS_MACOS)
const auto signIndex = index >> (sizeof(index) * 8 - 1);
const auto absIndex = (index ^ signIndex) - signIndex;
#else
const auto absIndex = std::abs(index);
#endif
if (absIndex > string.length())
LogConsole::abortEvaluation("character index out of range");
@@ -259,7 +259,7 @@ namespace hex::plugin::builtin {
hex::Net net;
return net.getString(url).get().body;
});
}, true);
}
@@ -292,7 +292,7 @@ namespace hex::plugin::builtin {
openFiles.emplace(std::pair{ fileCounter, std::move(file) });
return u128(fileCounter);
});
}, true);
/* close(file) */
ContentRegistry::PatternLanguageFunctions::add(nsStdFile, "close", 1, [](Evaluator *ctx, auto params) -> std::optional<Token::Literal> {
@@ -304,7 +304,7 @@ namespace hex::plugin::builtin {
openFiles.erase(file);
return { };
});
}, true);
/* read(file, size) */
ContentRegistry::PatternLanguageFunctions::add(nsStdFile, "read", 2, [](Evaluator *ctx, auto params) -> std::optional<Token::Literal> {
@@ -315,7 +315,7 @@ namespace hex::plugin::builtin {
LogConsole::abortEvaluation("failed to access invalid file");
return openFiles[file].readString(size);
});
}, true);
/* write(file, data) */
ContentRegistry::PatternLanguageFunctions::add(nsStdFile, "write", 2, [](Evaluator *ctx, auto params) -> std::optional<Token::Literal> {
@@ -328,7 +328,7 @@ namespace hex::plugin::builtin {
openFiles[file].write(data);
return { };
});
}, true);
/* seek(file, offset) */
ContentRegistry::PatternLanguageFunctions::add(nsStdFile, "seek", 2, [](Evaluator *ctx, auto params) -> std::optional<Token::Literal> {
@@ -341,7 +341,7 @@ namespace hex::plugin::builtin {
openFiles[file].seek(offset);
return { };
});
}, true);
/* size(file) */
ContentRegistry::PatternLanguageFunctions::add(nsStdFile, "size", 1, [](Evaluator *ctx, auto params) -> std::optional<Token::Literal> {
@@ -351,7 +351,7 @@ namespace hex::plugin::builtin {
LogConsole::abortEvaluation("failed to access invalid file");
return u128(openFiles[file].getSize());
});
}, true);
/* resize(file, size) */
ContentRegistry::PatternLanguageFunctions::add(nsStdFile, "resize", 2, [](Evaluator *ctx, auto params) -> std::optional<Token::Literal> {
@@ -364,7 +364,7 @@ namespace hex::plugin::builtin {
openFiles[file].setSize(size);
return { };
});
}, true);
/* flush(file) */
ContentRegistry::PatternLanguageFunctions::add(nsStdFile, "flush", 1, [](Evaluator *ctx, auto params) -> std::optional<Token::Literal> {
@@ -376,7 +376,7 @@ namespace hex::plugin::builtin {
openFiles[file].flush();
return { };
});
}, true);
/* remove(file) */
ContentRegistry::PatternLanguageFunctions::add(nsStdFile, "remove", 1, [](Evaluator *ctx, auto params) -> std::optional<Token::Literal> {
@@ -388,7 +388,7 @@ namespace hex::plugin::builtin {
openFiles[file].remove();
return { };
});
}, true);
}
}