2016-08-19 11:47:32 +00:00
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// Copyright (c) 2016 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "atom/renderer/atom_sandboxed_renderer_client.h"
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2016-08-21 10:30:21 +00:00
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#include <string>
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#include "atom/common/api/api_messages.h"
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2017-03-21 13:41:23 +00:00
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#include "atom/common/api/atom_bindings.h"
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2016-08-21 10:30:21 +00:00
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#include "atom/common/native_mate_converters/string16_converter.h"
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2017-03-16 16:20:09 +00:00
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#include "atom/common/native_mate_converters/v8_value_converter.h"
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2016-08-21 10:30:21 +00:00
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#include "atom/common/native_mate_converters/value_converter.h"
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2018-01-06 15:58:24 +00:00
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#include "atom/common/node_bindings.h"
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2016-08-21 10:30:21 +00:00
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#include "atom/common/options_switches.h"
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#include "atom/renderer/api/atom_api_renderer_ipc.h"
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#include "atom/renderer/atom_render_view_observer.h"
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#include "base/command_line.h"
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2016-12-08 01:33:28 +00:00
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#include "chrome/renderer/printing/print_web_view_helper.h"
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2016-08-21 10:30:21 +00:00
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#include "content/public/renderer/render_frame.h"
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#include "content/public/renderer/render_view.h"
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#include "content/public/renderer/render_view_observer.h"
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#include "ipc/ipc_message_macros.h"
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2017-02-20 13:59:39 +00:00
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#include "native_mate/converter.h"
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#include "native_mate/dictionary.h"
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2016-08-21 10:30:21 +00:00
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#include "third_party/WebKit/public/web/WebFrame.h"
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#include "third_party/WebKit/public/web/WebKit.h"
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#include "third_party/WebKit/public/web/WebLocalFrame.h"
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#include "third_party/WebKit/public/web/WebScriptSource.h"
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#include "third_party/WebKit/public/web/WebView.h"
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2017-04-27 07:56:47 +00:00
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#include "atom/common/node_includes.h"
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#include "atom_natives.h" // NOLINT: This file is generated with js2c
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2016-08-19 11:47:32 +00:00
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namespace atom {
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2016-08-21 10:30:21 +00:00
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namespace {
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2017-02-27 17:14:36 +00:00
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const std::string kIpcKey = "ipcNative";
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const std::string kModuleCacheKey = "native-module-cache";
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v8::Local<v8::Object> GetModuleCache(v8::Isolate* isolate) {
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mate::Dictionary global(isolate, isolate->GetCurrentContext()->Global());
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v8::Local<v8::Value> cache;
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if (!global.GetHidden(kModuleCacheKey, &cache)) {
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cache = v8::Object::New(isolate);
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global.SetHidden(kModuleCacheKey, cache);
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}
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return cache->ToObject();
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}
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// adapted from node.cc
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v8::Local<v8::Value> GetBinding(v8::Isolate* isolate, v8::Local<v8::String> key,
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mate::Arguments* margs) {
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v8::Local<v8::Object> exports;
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std::string module_key = mate::V8ToString(key);
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mate::Dictionary cache(isolate, GetModuleCache(isolate));
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if (cache.Get(module_key.c_str(), &exports)) {
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return exports;
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}
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auto mod = node::get_builtin_module(module_key.c_str());
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if (!mod) {
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char errmsg[1024];
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snprintf(errmsg, sizeof(errmsg), "No such module: %s", module_key.c_str());
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margs->ThrowError(errmsg);
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return exports;
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}
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exports = v8::Object::New(isolate);
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DCHECK_EQ(mod->nm_register_func, nullptr);
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DCHECK_NE(mod->nm_context_register_func, nullptr);
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mod->nm_context_register_func(exports, v8::Null(isolate),
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isolate->GetCurrentContext(), mod->nm_priv);
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cache.Set(module_key.c_str(), exports);
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return exports;
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}
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2017-06-26 20:52:19 +00:00
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base::CommandLine::StringVector GetArgv() {
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return base::CommandLine::ForCurrentProcess()->argv();
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}
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void InitializeBindings(v8::Local<v8::Object> binding,
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v8::Local<v8::Context> context) {
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auto isolate = context->GetIsolate();
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mate::Dictionary b(isolate, binding);
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b.SetMethod("get", GetBinding);
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b.SetMethod("crash", AtomBindings::Crash);
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b.SetMethod("hang", AtomBindings::Hang);
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b.SetMethod("getArgv", GetArgv);
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b.SetMethod("getProcessMemoryInfo", &AtomBindings::GetProcessMemoryInfo);
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b.SetMethod("getSystemMemoryInfo", &AtomBindings::GetSystemMemoryInfo);
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}
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2016-08-21 10:30:21 +00:00
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class AtomSandboxedRenderViewObserver : public AtomRenderViewObserver {
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public:
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AtomSandboxedRenderViewObserver(content::RenderView* render_view,
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AtomSandboxedRendererClient* renderer_client)
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: AtomRenderViewObserver(render_view, nullptr),
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v8_converter_(new atom::V8ValueConverter),
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renderer_client_(renderer_client) {
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v8_converter_->SetDisableNode(true);
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}
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protected:
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void EmitIPCEvent(blink::WebLocalFrame* frame,
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const base::string16& channel,
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const base::ListValue& args) override {
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if (!frame)
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return;
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2017-06-16 20:42:33 +00:00
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auto isolate = blink::MainThreadIsolate();
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v8::HandleScope handle_scope(isolate);
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auto context = frame->MainWorldScriptContext();
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v8::Context::Scope context_scope(context);
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v8::Local<v8::Value> argv[] = {
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mate::ConvertToV8(isolate, channel),
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v8_converter_->ToV8Value(&args, context)
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};
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renderer_client_->InvokeIpcCallback(
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context,
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"onMessage",
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std::vector<v8::Local<v8::Value>>(argv, argv + 2));
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}
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private:
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std::unique_ptr<atom::V8ValueConverter> v8_converter_;
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AtomSandboxedRendererClient* renderer_client_;
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DISALLOW_COPY_AND_ASSIGN(AtomSandboxedRenderViewObserver);
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};
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} // namespace
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AtomSandboxedRendererClient::AtomSandboxedRendererClient() {
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2018-01-06 15:58:24 +00:00
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// Explicitly register electron's builtin modules.
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NodeBindings::RegisterBuiltinModules();
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}
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AtomSandboxedRendererClient::~AtomSandboxedRendererClient() {
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}
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2016-08-21 10:30:21 +00:00
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void AtomSandboxedRendererClient::RenderFrameCreated(
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content::RenderFrame* render_frame) {
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RendererClientBase::RenderFrameCreated(render_frame);
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}
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void AtomSandboxedRendererClient::RenderViewCreated(
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content::RenderView* render_view) {
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new AtomSandboxedRenderViewObserver(render_view, this);
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RendererClientBase::RenderViewCreated(render_view);
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}
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void AtomSandboxedRendererClient::DidCreateScriptContext(
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v8::Handle<v8::Context> context, content::RenderFrame* render_frame) {
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2017-11-23 06:25:16 +00:00
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// Only allow preload for the main frame
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if (!render_frame->IsMainFrame())
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return;
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2016-08-21 10:30:21 +00:00
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base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
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std::string preload_script = command_line->GetSwitchValueASCII(
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switches::kPreloadScript);
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if (preload_script.empty())
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return;
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auto isolate = context->GetIsolate();
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v8::HandleScope handle_scope(isolate);
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v8::Context::Scope context_scope(context);
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// Wrap the bundle into a function that receives the binding object and the
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// preload script path as arguments.
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std::string preload_bundle_native(node::preload_bundle_data,
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node::preload_bundle_data + sizeof(node::preload_bundle_data));
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std::stringstream ss;
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ss << "(function(binding, preloadPath, require) {\n";
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ss << preload_bundle_native << "\n";
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ss << "})";
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std::string preload_wrapper = ss.str();
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// Compile the wrapper and run it to get the function object
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auto script = v8::Script::Compile(
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mate::ConvertToV8(isolate, preload_wrapper)->ToString());
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auto func = v8::Handle<v8::Function>::Cast(
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script->Run(context).ToLocalChecked());
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// Create and initialize the binding object
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auto binding = v8::Object::New(isolate);
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InitializeBindings(binding, context);
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AddRenderBindings(isolate, binding);
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v8::Local<v8::Value> args[] = {
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binding,
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mate::ConvertToV8(isolate, preload_script)
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};
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// Execute the function with proper arguments
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ignore_result(func->Call(context, v8::Null(isolate), 2, args));
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}
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void AtomSandboxedRendererClient::WillReleaseScriptContext(
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v8::Handle<v8::Context> context, content::RenderFrame* render_frame) {
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2017-11-23 06:25:16 +00:00
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// Only allow preload for the main frame
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if (!render_frame->IsMainFrame())
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return;
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2016-08-21 10:30:21 +00:00
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auto isolate = context->GetIsolate();
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v8::HandleScope handle_scope(isolate);
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v8::Context::Scope context_scope(context);
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InvokeIpcCallback(context, "onExit", std::vector<v8::Local<v8::Value>>());
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}
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2017-02-20 13:59:39 +00:00
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void AtomSandboxedRendererClient::InvokeIpcCallback(
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v8::Handle<v8::Context> context,
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const std::string& callback_name,
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std::vector<v8::Handle<v8::Value>> args) {
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auto isolate = context->GetIsolate();
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auto binding_key = mate::ConvertToV8(isolate, kIpcKey)->ToString();
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auto private_binding_key = v8::Private::ForApi(isolate, binding_key);
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auto global_object = context->Global();
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v8::Local<v8::Value> value;
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if (!global_object->GetPrivate(context, private_binding_key).ToLocal(&value))
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return;
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if (value.IsEmpty() || !value->IsObject())
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return;
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auto binding = value->ToObject();
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auto callback_key = mate::ConvertToV8(isolate, callback_name)->ToString();
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auto callback_value = binding->Get(callback_key);
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DCHECK(callback_value->IsFunction()); // set by sandboxed_renderer/init.js
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auto callback = v8::Handle<v8::Function>::Cast(callback_value);
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ignore_result(callback->Call(context, binding, args.size(), args.data()));
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}
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2016-08-19 11:47:32 +00:00
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} // namespace atom
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