src/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/renderer/render_view.h"
  11 #include "content/public/renderer/v8_value_converter.h"
  12 #include "extensions/common/extension.h"
  13 #include "extensions/common/extension_messages.h"
  14 #include "extensions/common/features/feature.h"
  15 #include "extensions/common/features/feature_provider.h"
  16 #include "extensions/common/manifest.h"
  17 #include "extensions/renderer/api_activity_logger.h"
  18 #include "extensions/renderer/extension_helper.h"
  19 #include "extensions/renderer/script_context.h"
  20 #include "third_party/WebKit/public/web/WebDocument.h"
  21 #include "third_party/WebKit/public/web/WebFrame.h"
  22 #include "third_party/WebKit/public/web/WebView.h"
  23
  24 using content::V8ValueConverter;
  25
  26 namespace extensions {
  27
  28 RuntimeCustomBindings::RuntimeCustomBindings(ScriptContext* context)
  29     : ObjectBackedNativeHandler(context) {
  30   RouteFunction(
  31       "GetManifest",
  32       base::Bind(&RuntimeCustomBindings::GetManifest, base::Unretained(this)));
  33   RouteFunction("OpenChannelToExtension",
  34                 base::Bind(&RuntimeCustomBindings::OpenChannelToExtension,
  35                            base::Unretained(this)));
  36   RouteFunction("OpenChannelToNativeApp",
  37                 base::Bind(&RuntimeCustomBindings::OpenChannelToNativeApp,
  38                            base::Unretained(this)));
  39   RouteFunction("GetExtensionViews",
  40                 base::Bind(&RuntimeCustomBindings::GetExtensionViews,
  41                            base::Unretained(this)));
  42 }
  43
  44 RuntimeCustomBindings::~RuntimeCustomBindings() {
  45 }
  46
  47 void RuntimeCustomBindings::OpenChannelToExtension(
  48     const v8::FunctionCallbackInfo<v8::Value>& args) {
  49   // Get the current RenderView so that we can send a routed IPC message from
  50   // the correct source.
  51   content::RenderView* renderview = context()->GetRenderView();
  52   if (!renderview)
  53     return;
  54
  55   // The Javascript code should validate/fill the arguments.
  56   CHECK_EQ(args.Length(), 3);
  57   CHECK(args[0]->IsString() && args[1]->IsString() && args[2]->IsBoolean());
  58
  59   ExtensionMsg_ExternalConnectionInfo info;
  60
  61   // For messaging APIs, hosted apps should be considered a web page so hide
  62   // its extension ID.
  63   const Extension* extension = context()->extension();
  64   if (extension && !extension->is_hosted_app())
  65     info.source_id = extension->id();
  66
  67   info.target_id = *v8::String::Utf8Value(args[0]->ToString());
  68   info.source_url = context()->GetURL();
  69   std::string channel_name = *v8::String::Utf8Value(args[1]->ToString());
  70   bool include_tls_channel_id =
  71       args.Length() > 2 ? args[2]->BooleanValue() : false;
  72   int port_id = -1;
  73   renderview->Send(
  74       new ExtensionHostMsg_OpenChannelToExtension(renderview->GetRoutingID(),
  75                                                   info,
  76                                                   channel_name,
  77                                                   include_tls_channel_id,
  78                                                   &port_id));
  79   args.GetReturnValue().Set(static_cast<int32_t>(port_id));
  80 }
  81
  82 void RuntimeCustomBindings::OpenChannelToNativeApp(
  83     const v8::FunctionCallbackInfo<v8::Value>& args) {
  84   // Verify that the extension has permission to use native messaging.
  85   Feature::Availability availability =
  86       FeatureProvider::GetPermissionFeatures()
  87           ->GetFeature("nativeMessaging")
  88           ->IsAvailableToContext(context()->extension(),
  89                                  context()->context_type(),
  90                                  context()->GetURL());
  91   if (!availability.is_available())
  92     return;
  93
  94   // Get the current RenderView so that we can send a routed IPC message from
  95   // the correct source.
  96   content::RenderView* renderview = context()->GetRenderView();
  97   if (!renderview)
  98     return;
  99
 100   // The Javascript code should validate/fill the arguments.
 101   CHECK(args.Length() >= 2 && args[0]->IsString() && args[1]->IsString());
 102
 103   std::string extension_id = *v8::String::Utf8Value(args[0]->ToString());
 104   std::string native_app_name = *v8::String::Utf8Value(args[1]->ToString());
 105
 106   int port_id = -1;
 107   renderview->Send(new ExtensionHostMsg_OpenChannelToNativeApp(
 108       renderview->GetRoutingID(), extension_id, native_app_name, &port_id));
 109   args.GetReturnValue().Set(static_cast<int32_t>(port_id));
 110 }
 111
 112 void RuntimeCustomBindings::GetManifest(
 113     const v8::FunctionCallbackInfo<v8::Value>& args) {
 114   CHECK(context()->extension());
 115
 116   scoped_ptr<V8ValueConverter> converter(V8ValueConverter::create());
 117   args.GetReturnValue().Set(converter->ToV8Value(
 118       context()->extension()->manifest()->value(), context()->v8_context()));
 119 }
 120
 121 void RuntimeCustomBindings::GetExtensionViews(
 122     const v8::FunctionCallbackInfo<v8::Value>& args) {
 123   if (args.Length() != 2)
 124     return;
 125
 126   if (!args[0]->IsInt32() || !args[1]->IsString())
 127     return;
 128
 129   // |browser_window_id| == extension_misc::kUnknownWindowId means getting
 130   // all views for the current extension.
 131   int browser_window_id = args[0]->Int32Value();
 132
 133   std::string view_type_string = *v8::String::Utf8Value(args[1]->ToString());
 134   StringToUpperASCII(&view_type_string);
 135   // |view_type| == VIEW_TYPE_INVALID means getting any type of
 136   // views.
 137   ViewType view_type = VIEW_TYPE_INVALID;
 138   if (view_type_string == kViewTypeBackgroundPage) {
 139     view_type = VIEW_TYPE_EXTENSION_BACKGROUND_PAGE;
 140   } else if (view_type_string == kViewTypeInfobar) {
 141     view_type = VIEW_TYPE_EXTENSION_INFOBAR;
 142   } else if (view_type_string == kViewTypeTabContents) {
 143     view_type = VIEW_TYPE_TAB_CONTENTS;
 144   } else if (view_type_string == kViewTypePopup) {
 145     view_type = VIEW_TYPE_EXTENSION_POPUP;
 146   } else if (view_type_string == kViewTypeExtensionDialog) {
 147     view_type = VIEW_TYPE_EXTENSION_DIALOG;
 148   } else if (view_type_string == kViewTypeAppWindow) {
 149     view_type = VIEW_TYPE_APP_WINDOW;
 150   } else if (view_type_string == kViewTypeLauncherPage) {
 151     view_type = VIEW_TYPE_LAUNCHER_PAGE;
 152   } else if (view_type_string == kViewTypePanel) {
 153     view_type = VIEW_TYPE_PANEL;
 154   } else if (view_type_string != kViewTypeAll) {
 155     return;
 156   }
 157
 158   std::string extension_id = context()->GetExtensionID();
 159   if (extension_id.empty())
 160     return;
 161
 162   std::vector<content::RenderView*> views = ExtensionHelper::GetExtensionViews(
 163       extension_id, browser_window_id, view_type);
 164   v8::Local<v8::Array> v8_views = v8::Array::New(args.GetIsolate());
 165   int v8_index = 0;
 166   for (size_t i = 0; i < views.size(); ++i) {
 167     v8::Local<v8::Context> context =
 168         views[i]->GetWebView()->mainFrame()->mainWorldScriptContext();
 169     if (!context.IsEmpty()) {
 170       v8::Local<v8::Value> window = context->Global();
 171       DCHECK(!window.IsEmpty());
 172       v8_views->Set(v8::Integer::New(args.GetIsolate(), v8_index++), window);
 173     }
 174   }
 175
 176   args.GetReturnValue().Set(v8_views);
 177 }
 178
 179 }  // namespace extensions