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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/renderer/activity_log_converter_strategy.h"
#include <memory>
#include "base/values.h"
#include "v8/include/v8-container.h"
#include "v8/include/v8-exception.h"
#include "v8/include/v8-function.h"
#include "v8/include/v8-isolate.h"
#include "v8/include/v8-object.h"
#include "v8/include/v8-primitive.h"
#include "v8/include/v8-value.h"
namespace extensions {
namespace {
// Summarize a V8 value. This performs a shallow conversion in all cases, and
// returns only a string with a description of the value (e.g.,
// "[HTMLElement]").
std::unique_ptr<base::Value> SummarizeV8Value(v8::Isolate* isolate,
v8::Local<v8::Object> object) {
v8::TryCatch try_catch(isolate);
v8::Isolate::DisallowJavascriptExecutionScope scope(
isolate, v8::Isolate::DisallowJavascriptExecutionScope::THROW_ON_FAILURE);
v8::Local<v8::String> name = v8::String::NewFromUtf8Literal(isolate, "[");
if (object->IsFunction()) {
name = v8::String::Concat(
isolate, name, v8::String::NewFromUtf8Literal(isolate, "Function"));
v8::Local<v8::Value> fname =
v8::Local<v8::Function>::Cast(object)->GetName();
if (fname->IsString() && v8::Local<v8::String>::Cast(fname)->Length()) {
name = v8::String::Concat(isolate, name,
v8::String::NewFromUtf8Literal(isolate, " "));
name =
v8::String::Concat(isolate, name, v8::Local<v8::String>::Cast(fname));
name = v8::String::Concat(isolate, name,
v8::String::NewFromUtf8Literal(isolate, "()"));
}
} else {
name = v8::String::Concat(isolate, name, object->GetConstructorName());
}
name = v8::String::Concat(isolate, name,
v8::String::NewFromUtf8Literal(isolate, "]"));
if (try_catch.HasCaught()) {
return std::make_unique<base::Value>("[JS Execution Exception]");
}
return std::make_unique<base::Value>(
std::string(*v8::String::Utf8Value(isolate, name)));
}
} // namespace
ActivityLogConverterStrategy::ActivityLogConverterStrategy() = default;
ActivityLogConverterStrategy::~ActivityLogConverterStrategy() = default;
bool ActivityLogConverterStrategy::FromV8Object(
v8::Local<v8::Object> value,
std::unique_ptr<base::Value>* out,
v8::Isolate* isolate) {
return FromV8Internal(value, out, isolate);
}
bool ActivityLogConverterStrategy::FromV8Array(
v8::Local<v8::Array> value,
std::unique_ptr<base::Value>* out,
v8::Isolate* isolate) {
return FromV8Internal(value, out, isolate);
}
bool ActivityLogConverterStrategy::FromV8Internal(
v8::Local<v8::Object> value,
std::unique_ptr<base::Value>* out,
v8::Isolate* isolate) const {
*out = SummarizeV8Value(isolate, value);
return true;
}
} // namespace extensions
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