| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "extensions/renderer/console.h" |
| |
| #include "base/compiler_specific.h" |
| #include "base/debug/alias.h" |
| #include "base/lazy_instance.h" |
| #include "base/macros.h" |
| #include "base/strings/string_util.h" |
| #include "base/strings/stringprintf.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "content/public/child/worker_thread.h" |
| #include "content/public/renderer/render_frame.h" |
| #include "extensions/renderer/extension_frame_helper.h" |
| #include "extensions/renderer/script_context.h" |
| #include "extensions/renderer/script_context_set.h" |
| #include "extensions/renderer/v8_helpers.h" |
| |
| namespace extensions { |
| namespace console { |
| |
| using namespace v8_helpers; |
| |
| namespace { |
| |
| // Writes |message| to stack to show up in minidump, then crashes. |
| void CheckWithMinidump(const std::string& message) { |
| char minidump[1024]; |
| base::debug::Alias(&minidump); |
| base::snprintf( |
| minidump, arraysize(minidump), "e::console: %s", message.c_str()); |
| CHECK(false) << message; |
| } |
| |
| typedef void (*LogMethod)(content::RenderFrame* render_frame, |
| const std::string& message); |
| |
| void BoundLogMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info) { |
| std::string message; |
| for (int i = 0; i < info.Length(); ++i) { |
| if (i > 0) |
| message += " "; |
| message += *v8::String::Utf8Value(info[i]); |
| } |
| |
| v8::Local<v8::Context> context = info.GetIsolate()->GetCurrentContext(); |
| if (context.IsEmpty()) { |
| LOG(WARNING) << "Could not log \"" << message << "\": no context given"; |
| return; |
| } |
| |
| // A worker's ScriptContext neither lives in ScriptContextSet nor it has a |
| // RenderFrame associated with it, so early exit in this case. |
| // TODO(lazyboy): Fix. |
| if (content::WorkerThread::GetCurrentId() > 0) |
| return; |
| |
| ScriptContext* script_context = |
| ScriptContextSet::GetContextByV8Context(context); |
| LogMethod log_method = |
| reinterpret_cast<LogMethod>(info.Data().As<v8::External>()->Value()); |
| (*log_method)(script_context ? script_context->GetRenderFrame() : nullptr, |
| message); |
| } |
| |
| void BindLogMethod(v8::Isolate* isolate, |
| v8::Local<v8::Object> target, |
| const std::string& name, |
| LogMethod log_method) { |
| v8::Local<v8::FunctionTemplate> tmpl = v8::FunctionTemplate::New( |
| isolate, |
| &BoundLogMethodCallback, |
| v8::External::New(isolate, reinterpret_cast<void*>(log_method))); |
| tmpl->RemovePrototype(); |
| v8::Local<v8::Function> function; |
| if (!tmpl->GetFunction(isolate->GetCurrentContext()).ToLocal(&function)) { |
| LOG(FATAL) << "Could not create log function \"" << name << "\""; |
| return; |
| } |
| v8::Local<v8::String> v8_name = ToV8StringUnsafe(isolate, name); |
| if (!SetProperty(isolate->GetCurrentContext(), target, v8_name, function)) { |
| LOG(WARNING) << "Could not bind log method \"" << name << "\""; |
| } |
| SetProperty(isolate->GetCurrentContext(), target, v8_name, |
| tmpl->GetFunction()); |
| } |
| |
| } // namespace |
| |
| void Debug(content::RenderFrame* render_frame, const std::string& message) { |
| AddMessage(render_frame, content::CONSOLE_MESSAGE_LEVEL_DEBUG, message); |
| } |
| |
| void Log(content::RenderFrame* render_frame, const std::string& message) { |
| AddMessage(render_frame, content::CONSOLE_MESSAGE_LEVEL_LOG, message); |
| } |
| |
| void Warn(content::RenderFrame* render_frame, const std::string& message) { |
| AddMessage(render_frame, content::CONSOLE_MESSAGE_LEVEL_WARNING, message); |
| } |
| |
| void Error(content::RenderFrame* render_frame, const std::string& message) { |
| AddMessage(render_frame, content::CONSOLE_MESSAGE_LEVEL_ERROR, message); |
| } |
| |
| void Fatal(content::RenderFrame* render_frame, const std::string& message) { |
| Error(render_frame, message); |
| CheckWithMinidump(message); |
| } |
| |
| void AddMessage(content::RenderFrame* render_frame, |
| content::ConsoleMessageLevel level, |
| const std::string& message) { |
| if (!render_frame) { |
| LOG(WARNING) << "Could not log \"" << message |
| << "\": no render frame found"; |
| } else { |
| render_frame->AddMessageToConsole(level, message); |
| } |
| } |
| |
| v8::Local<v8::Object> AsV8Object(v8::Isolate* isolate) { |
| v8::EscapableHandleScope handle_scope(isolate); |
| v8::Local<v8::Object> console_object = v8::Object::New(isolate); |
| BindLogMethod(isolate, console_object, "debug", &Debug); |
| BindLogMethod(isolate, console_object, "log", &Log); |
| BindLogMethod(isolate, console_object, "warn", &Warn); |
| BindLogMethod(isolate, console_object, "error", &Error); |
| return handle_scope.Escape(console_object); |
| } |
| |
| } // namespace console |
| } // namespace extensions |