android_webview/native/aw_dev_tools_server.cc

   1 // Copyright 2013 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 "android_webview/native/aw_dev_tools_server.h"
   6
   7 #include "android_webview/common/aw_content_client.h"
   8 #include "android_webview/native/aw_contents.h"
   9 #include "base/bind.h"
  10 #include "base/files/file_path.h"
  11 #include "base/json/json_writer.h"
  12 #include "base/strings/stringprintf.h"
  13 #include "base/strings/utf_string_conversions.h"
  14 #include "base/values.h"
  15 #include "components/devtools_http_handler/devtools_http_handler.h"
  16 #include "components/devtools_http_handler/devtools_http_handler_delegate.h"
  17 #include "content/public/browser/android/devtools_auth.h"
  18 #include "content/public/browser/devtools_agent_host.h"
  19 #include "content/public/browser/web_contents.h"
  20 #include "content/public/common/user_agent.h"
  21 #include "jni/AwDevToolsServer_jni.h"
  22 #include "net/base/net_errors.h"
  23 #include "net/socket/unix_domain_server_socket_posix.h"
  24
  25 using content::DevToolsAgentHost;
  26 using content::RenderViewHost;
  27 using content::WebContents;
  28 using devtools_http_handler::DevToolsHttpHandler;
  29
  30 namespace {
  31
  32 const char kFrontEndURL[] =
  33     "http://chrome-devtools-frontend.appspot.com/serve_rev/%s/inspector.html";
  34 const char kSocketNameFormat[] = "webview_devtools_remote_%d";
  35 const char kTetheringSocketName[] = "webview_devtools_tethering_%d_%d";
  36
  37 const int kBackLog = 10;
  38
  39 // Delegate implementation for the devtools http handler for WebView. A new
  40 // instance of this gets created each time web debugging is enabled.
  41 class AwDevToolsServerDelegate :
  42     public devtools_http_handler::DevToolsHttpHandlerDelegate {
  43  public:
  44   AwDevToolsServerDelegate() {
  45   }
  46
  47   ~AwDevToolsServerDelegate() override {}
  48
  49   // devtools_http_handler::DevToolsHttpHandlerDelegate implementation.
  50   std::string GetDiscoveryPageHTML() override;
  51   std::string GetFrontendResource(const std::string& path) override;
  52   std::string GetPageThumbnailData(const GURL&) override;
  53
  54  private:
  55
  56   DISALLOW_COPY_AND_ASSIGN(AwDevToolsServerDelegate);
  57 };
  58
  59
  60 std::string AwDevToolsServerDelegate::GetDiscoveryPageHTML() {
  61   const char html[] =
  62       "<html>"
  63       "<head><title>WebView remote debugging</title></head>"
  64       "<body>Please use <a href=\'chrome://inspect\'>chrome://inspect</a>"
  65       "</body>"
  66       "</html>";
  67   return html;
  68 }
  69
  70 std::string AwDevToolsServerDelegate::GetFrontendResource(
  71     const std::string& path) {
  72   return std::string();
  73 }
  74
  75 std::string AwDevToolsServerDelegate::GetPageThumbnailData(const GURL&) {
  76   return std::string();
  77 }
  78
  79 // Factory for UnixDomainServerSocket.
  80 class UnixDomainServerSocketFactory
  81     : public DevToolsHttpHandler::ServerSocketFactory {
  82  public:
  83   explicit UnixDomainServerSocketFactory(const std::string& socket_name)
  84       : socket_name_(socket_name),
  85         last_tethering_socket_(0) {
  86   }
  87
  88  private:
  89   // devtools_http_handler::DevToolsHttpHandler::ServerSocketFactory.
  90   scoped_ptr<net::ServerSocket> CreateForHttpServer() override {
  91     scoped_ptr<net::ServerSocket> socket(
  92         new net::UnixDomainServerSocket(
  93             base::Bind(&content::CanUserConnectToDevTools),
  94             true /* use_abstract_namespace */));
  95     if (socket->ListenWithAddressAndPort(socket_name_, 0, kBackLog) != net::OK)
  96       return scoped_ptr<net::ServerSocket>();
  97
  98     return socket;
  99   }
 100
 101   scoped_ptr<net::ServerSocket> CreateForTethering(std::string* name) override {
 102     *name = base::StringPrintf(
 103         kTetheringSocketName, getpid(), ++last_tethering_socket_);
 104     scoped_ptr<net::UnixDomainServerSocket> socket(
 105         new net::UnixDomainServerSocket(
 106             base::Bind(&content::CanUserConnectToDevTools), true));
 107     if (socket->ListenWithAddressAndPort(*name, 0, kBackLog) != net::OK)
 108       return scoped_ptr<net::ServerSocket>();
 109
 110     return socket.Pass();
 111   }
 112
 113   std::string socket_name_;
 114   int last_tethering_socket_;
 115
 116   DISALLOW_COPY_AND_ASSIGN(UnixDomainServerSocketFactory);
 117 };
 118
 119 }  // namespace
 120
 121 namespace android_webview {
 122
 123 AwDevToolsServer::AwDevToolsServer() {
 124 }
 125
 126 AwDevToolsServer::~AwDevToolsServer() {
 127   Stop();
 128 }
 129
 130 void AwDevToolsServer::Start() {
 131   if (devtools_http_handler_)
 132     return;
 133
 134   scoped_ptr<DevToolsHttpHandler::ServerSocketFactory> factory(
 135       new UnixDomainServerSocketFactory(
 136           base::StringPrintf(kSocketNameFormat, getpid())));
 137   devtools_http_handler_.reset(new DevToolsHttpHandler(
 138       factory.Pass(),
 139       base::StringPrintf(kFrontEndURL, content::GetWebKitRevision().c_str()),
 140       new AwDevToolsServerDelegate(),
 141       base::FilePath(),
 142       base::FilePath(),
 143       GetProduct(),
 144       GetUserAgent()));
 145 }
 146
 147 void AwDevToolsServer::Stop() {
 148   devtools_http_handler_.reset();
 149 }
 150
 151 bool AwDevToolsServer::IsStarted() const {
 152   return devtools_http_handler_;
 153 }
 154
 155 bool RegisterAwDevToolsServer(JNIEnv* env) {
 156   return RegisterNativesImpl(env);
 157 }
 158
 159 static jlong InitRemoteDebugging(JNIEnv* env,
 160                                  const JavaParamRef<jobject>& obj) {
 161   AwDevToolsServer* server = new AwDevToolsServer();
 162   return reinterpret_cast<intptr_t>(server);
 163 }
 164
 165 static void DestroyRemoteDebugging(JNIEnv* env,
 166                                    const JavaParamRef<jobject>& obj,
 167                                    jlong server) {
 168   delete reinterpret_cast<AwDevToolsServer*>(server);
 169 }
 170
 171 static void SetRemoteDebuggingEnabled(JNIEnv* env,
 172                                       const JavaParamRef<jobject>& obj,
 173                                       jlong server,
 174                                       jboolean enabled) {
 175   AwDevToolsServer* devtools_server =
 176       reinterpret_cast<AwDevToolsServer*>(server);
 177   if (enabled) {
 178     devtools_server->Start();
 179   } else {
 180     devtools_server->Stop();
 181   }
 182 }
 183
 184 }  // namespace android_webview