extensions/renderer/runtime_custom_bindings.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "extensions/renderer/runtime_custom_bindings.h"
   6
   7 #include "base/bind.h"
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/values.h"
  10 #include "content/public/child/v8_value_converter.h"
  11 #include "content/public/renderer/render_frame.h"
  12 #include "content/public/renderer/render_view.h"
  13 #include "extensions/common/extension.h"
  14 #include "extensions/common/extension_messages.h"
  15 #include "extensions/common/features/feature.h"
  16 #include "extensions/common/features/feature_provider.h"
  17 #include "extensions/common/manifest.h"
  18 #include "extensions/renderer/api_activity_logger.h"
  19 #include "extensions/renderer/extension_helper.h"
  20 #include "extensions/renderer/script_context.h"
  21 #include "third_party/WebKit/public/web/WebDocument.h"
  22 #include "third_party/WebKit/public/web/WebFrame.h"
  23 #include "third_party/WebKit/public/web/WebView.h"
  24
  25 using content::V8ValueConverter;
  26
  27 namespace extensions {
  28
  29 RuntimeCustomBindings::RuntimeCustomBindings(ScriptContext* context)
  30     : ObjectBackedNativeHandler(context) {
  31   RouteFunction(
  32       "GetManifest",
  33       base::Bind(&RuntimeCustomBindings::GetManifest, base::Unretained(this)));
  34   RouteFunction("OpenChannelToExtension",
  35                 base::Bind(&RuntimeCustomBindings::OpenChannelToExtension,
  36                            base::Unretained(this)));
  37   RouteFunction("OpenChannelToNativeApp",
  38                 base::Bind(&RuntimeCustomBindings::OpenChannelToNativeApp,
  39                            base::Unretained(this)));
  40   RouteFunction("GetExtensionViews",
  41                 base::Bind(&RuntimeCustomBindings::GetExtensionViews,
  42                            base::Unretained(this)));
  43 }
  44
  45 RuntimeCustomBindings::~RuntimeCustomBindings() {
  46 }
  47
  48 void RuntimeCustomBindings::OpenChannelToExtension(
  49     const v8::FunctionCallbackInfo<v8::Value>& args) {
  50   // Get the current RenderFrame so that we can send a routed IPC message from
  51   // the correct source.
  52   content::RenderFrame* renderframe = context()->GetRenderFrame();
  53   if (!renderframe)
  54     return;
  55
  56   // The Javascript code should validate/fill the arguments.
  57   CHECK_EQ(args.Length(), 3);
  58   CHECK(args[0]->IsString() && args[1]->IsString() && args[2]->IsBoolean());
  59
  60   ExtensionMsg_ExternalConnectionInfo info;
  61
  62   // For messaging APIs, hosted apps should be considered a web page so hide
  63   // its extension ID.
  64   const Extension* extension = context()->extension();
  65   if (extension && !extension->is_hosted_app())
  66     info.source_id = extension->id();
  67
  68   info.target_id = *v8::String::Utf8Value(args[0]);
  69   info.source_url = context()->GetURL();
  70   std::string channel_name = *v8::String::Utf8Value(args[1]);
  71   bool include_tls_channel_id =
  72       args.Length() > 2 ? args[2]->BooleanValue() : false;
  73   int port_id = -1;
  74   renderframe->Send(new ExtensionHostMsg_OpenChannelToExtension(
  75       renderframe->GetRoutingID(), info, channel_name, include_tls_channel_id,
  76       &port_id));
  77   args.GetReturnValue().Set(static_cast<int32_t>(port_id));
  78 }
  79
  80 void RuntimeCustomBindings::OpenChannelToNativeApp(
  81     const v8::FunctionCallbackInfo<v8::Value>& args) {
  82   // Verify that the extension has permission to use native messaging.
  83   Feature::Availability availability =
  84       FeatureProvider::GetPermissionFeatures()
  85           ->GetFeature("nativeMessaging")
  86           ->IsAvailableToContext(context()->extension(),
  87                                  context()->context_type(),
  88                                  context()->GetURL());
  89   if (!availability.is_available())
  90     return;
  91
  92   // Get the current RenderView so that we can send a routed IPC message from
  93   // the correct source.
  94   content::RenderView* renderview = context()->GetRenderView();
  95   if (!renderview)
  96     return;
  97
  98   // The Javascript code should validate/fill the arguments.
  99   CHECK(args.Length() >= 2 && args[0]->IsString() && args[1]->IsString());
 100
 101   std::string extension_id = *v8::String::Utf8Value(args[0]);
 102   std::string native_app_name = *v8::String::Utf8Value(args[1]);
 103
 104   int port_id = -1;
 105   renderview->Send(new ExtensionHostMsg_OpenChannelToNativeApp(
 106       renderview->GetRoutingID(), extension_id, native_app_name, &port_id));
 107   args.GetReturnValue().Set(static_cast<int32_t>(port_id));
 108 }
 109
 110 void RuntimeCustomBindings::GetManifest(
 111     const v8::FunctionCallbackInfo<v8::Value>& args) {
 112   CHECK(context()->extension());
 113
 114   scoped_ptr<V8ValueConverter> converter(V8ValueConverter::create());
 115   args.GetReturnValue().Set(converter->ToV8Value(
 116       context()->extension()->manifest()->value(), context()->v8_context()));
 117 }
 118
 119 void RuntimeCustomBindings::GetExtensionViews(
 120     const v8::FunctionCallbackInfo<v8::Value>& args) {
 121   if (args.Length() != 2)
 122     return;
 123
 124   if (!args[0]->IsInt32() || !args[1]->IsString())
 125     return;
 126
 127   // |browser_window_id| == extension_misc::kUnknownWindowId means getting
 128   // all views for the current extension.
 129   int browser_window_id = args[0]->Int32Value();
 130
 131   std::string view_type_string = *v8::String::Utf8Value(args[1]);
 132   base::StringToUpperASCII(&view_type_string);
 133   // |view_type| == VIEW_TYPE_INVALID means getting any type of
 134   // views.
 135   ViewType view_type = VIEW_TYPE_INVALID;
 136   if (view_type_string == kViewTypeBackgroundPage) {
 137     view_type = VIEW_TYPE_EXTENSION_BACKGROUND_PAGE;
 138   } else if (view_type_string == kViewTypeTabContents) {
 139     view_type = VIEW_TYPE_TAB_CONTENTS;
 140   } else if (view_type_string == kViewTypePopup) {
 141     view_type = VIEW_TYPE_EXTENSION_POPUP;
 142   } else if (view_type_string == kViewTypeExtensionDialog) {
 143     view_type = VIEW_TYPE_EXTENSION_DIALOG;
 144   } else if (view_type_string == kViewTypeAppWindow) {
 145     view_type = VIEW_TYPE_APP_WINDOW;
 146   } else if (view_type_string == kViewTypeLauncherPage) {
 147     view_type = VIEW_TYPE_LAUNCHER_PAGE;
 148   } else if (view_type_string == kViewTypePanel) {
 149     view_type = VIEW_TYPE_PANEL;
 150   } else if (view_type_string != kViewTypeAll) {
 151     return;
 152   }
 153
 154   std::string extension_id = context()->GetExtensionID();
 155   if (extension_id.empty())
 156     return;
 157
 158   std::vector<content::RenderView*> views = ExtensionHelper::GetExtensionViews(
 159       extension_id, browser_window_id, view_type);
 160   v8::Local<v8::Array> v8_views = v8::Array::New(args.GetIsolate());
 161   int v8_index = 0;
 162   for (size_t i = 0; i < views.size(); ++i) {
 163     v8::Local<v8::Context> context =
 164         views[i]->GetWebView()->mainFrame()->mainWorldScriptContext();
 165     if (!context.IsEmpty()) {
 166       v8::Local<v8::Value> window = context->Global();
 167       DCHECK(!window.IsEmpty());
 168       v8_views->Set(v8::Integer::New(args.GetIsolate(), v8_index++), window);
 169     }
 170   }
 171
 172   args.GetReturnValue().Set(v8_views);
 173 }
 174
 175 }  // namespace extensions