DevTools: remove support for legacy remote debugger

chrome/browser/debugger/extension_ports_remote_service.cc

Index: chrome/browser/debugger/extension_ports_remote_service.cc
diff --git a/chrome/browser/debugger/extension_ports_remote_service.cc b/chrome/browser/debugger/extension_ports_remote_service.cc
deleted file mode 100644
index 028b9a5d621fa56fc5e89e3a9a3f2ab1df8812e4..0000000000000000000000000000000000000000
--- a/chrome/browser/debugger/extension_ports_remote_service.cc
+++ /dev/null
@@ -1,380 +0,0 @@
-// Copyright (c) 2011 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.
-
-// Implementation of the ExtensionPortsRemoteService.
-
-// Inspired significantly from debugger_remote_service
-// and ../automation/extension_port_container.
-
-#include "chrome/browser/debugger/extension_ports_remote_service.h"
-
-#include "base/json/json_reader.h"
-#include "base/json/json_writer.h"
-#include "base/message_loop.h"
-#include "base/string_number_conversions.h"
-#include "base/values.h"
-#include "chrome/browser/browser_process.h"
-#include "chrome/browser/debugger/devtools_protocol_handler.h"
-#include "chrome/browser/debugger/devtools_remote_message.h"
-#include "chrome/browser/debugger/inspectable_tab_proxy.h"
-#include "chrome/browser/profiles/profile_manager.h"
-#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
-#include "chrome/common/extensions/extension_messages.h"
-#include "content/browser/debugger/devtools_manager.h"
-#include "content/browser/tab_contents/tab_contents.h"
-#include "content/common/devtools_messages.h"
-
-namespace {
-
-// Protocol is as follows:
-//
-// From external client:
-//   {"command": "connect",
-//    "data": {
-//      "extensionId": "<extension_id string>",
-//      "channelName": "<port name string>",  (optional)
-//      "tabId": <numerical tab ID>  (optional)
-//    }
-//   }
-// To connect to a background page or tool strip, the tabId should be omitted.
-// Tab IDs can be enumerated with the list_tabs DevToolsService command.
-//
-// Response:
-//   {"command": "connect",
-//    "result": 0,  (assuming success)
-//    "data": {
-//      "portId": <numerical port ID>
-//    }
-//   }
-//
-// Posting a message from external client:
-// Put the target message port ID in the devtools destination field.
-//   {"command": "postMessage",
-//    "data": <message body - arbitrary JSON>
-//   }
-// Response:
-//   {"command": "postMessage",
-//    "result": 0  (Assuming success)
-//   }
-// Note this is a confirmation from the devtools protocol layer, not
-// a response from the extension.
-//
-// Message from an extension to the external client:
-// The message port ID is in the devtools destination field.
-//   {"command": "onMessage",
-//    "result": 0,  (Always 0)
-//    "data": <message body - arbitrary JSON>
-//   }
-//
-// The "disconnect" command from the external client, and
-// "onDisconnect" notification from the ExtensionMessageService, are
-// similar: with the message port ID in the destination field, but no
-// "data" field in this case.
-
-// Commands:
-const char kConnect[] = "connect";
-const char kDisconnect[] = "disconnect";
-const char kPostMessage[] = "postMessage";
-// Events:
-const char kOnMessage[] = "onMessage";
-const char kOnDisconnect[] = "onDisconnect";
-
-// Constants for the JSON message fields.
-// The type is wstring because the constant is used to get a
-// DictionaryValue field (which requires a wide string).
-
-// Mandatory.
-const char kCommandKey[] = "command";
-
-// Always present in messages sent to the external client.
-const char kResultKey[] = "result";
-
-// Field for command-specific parameters. Not strictly necessary, but
-// makes it more similar to the remote debugger protocol, which should
-// allow easier reuse of client code.
-const char kDataKey[] = "data";
-
-// Fields within the "data" dictionary:
-
-// Required for "connect":
-const char kExtensionIdKey[] = "extensionId";
-// Optional in "connect":
-const char kChannelNameKey[] = "channelName";
-const char kTabIdKey[] = "tabId";
-
-// Present under "data" in replies to a successful "connect" .
-const char kPortIdKey[] = "portId";
-
-}  // namespace
-
-const char ExtensionPortsRemoteService::kToolName[] = "ExtensionPorts";
-
-ExtensionPortsRemoteService::ExtensionPortsRemoteService(
-    DevToolsProtocolHandler* delegate)
-    : delegate_(delegate), service_(NULL) {
-  // We need an ExtensionMessageService instance. It hangs off of
-  // |profile|. But we do not have a particular tab or RenderViewHost
-  // as context. I'll just use the first active profile not in
-  // incognito mode. But this is probably not the right way.
-  ProfileManager* profile_manager = g_browser_process->profile_manager();
-  if (!profile_manager) {
-    LOG(WARNING) << "No profile manager for ExtensionPortsRemoteService";
-    return;
-  }
-
-  std::vector<Profile*> profiles(profile_manager->GetLoadedProfiles());
-  for (size_t i = 0; i < profiles.size(); ++i) {
-    if (!profiles[i]->IsOffTheRecord()) {
-      service_ = profiles[i]->GetExtensionMessageService();
-      break;
-    }
-  }
-  if (!service_)
-    LOG(WARNING) << "No usable profile for ExtensionPortsRemoteService";
-}
-
-ExtensionPortsRemoteService::~ExtensionPortsRemoteService() {
-}
-
-void ExtensionPortsRemoteService::HandleMessage(
-    const DevToolsRemoteMessage& message) {
-  DCHECK_EQ(MessageLoop::current()->type(), MessageLoop::TYPE_UI);
-  const std::string destinationString = message.destination();
-  scoped_ptr<Value> request(base::JSONReader::Read(message.content(), true));
-  if (request.get() == NULL) {
-    // Bad JSON
-    NOTREACHED();
-    return;
-  }
-  DictionaryValue* content;
-  if (!request->IsType(Value::TYPE_DICTIONARY)) {
-    NOTREACHED();  // Broken protocol :(
-    return;
-  }
-  content = static_cast<DictionaryValue*>(request.get());
-  if (!content->HasKey(kCommandKey)) {
-    NOTREACHED();  // Broken protocol :(
-    return;
-  }
-  std::string command;
-  DictionaryValue response;
-
-  content->GetString(kCommandKey, &command);
-  response.SetString(kCommandKey, command);
-
-  if (!service_) {
-    // This happens if we failed to obtain an ExtensionMessageService
-    // during initialization.
-    NOTREACHED();
-    response.SetInteger(kResultKey, RESULT_NO_SERVICE);
-    SendResponse(response, message.tool(), message.destination());
-    return;
-  }
-
-  int destination = -1;
-  if (!destinationString.empty())
-    base::StringToInt(destinationString, &destination);
-
-  if (command == kConnect) {
-    if (destination != -1)  // destination should be empty for this command.
-      response.SetInteger(kResultKey, RESULT_UNKNOWN_COMMAND);
-    else
-      ConnectCommand(content, &response);
-  } else if (command == kDisconnect) {
-    if (destination == -1)  // Destination required for this command.
-      response.SetInteger(kResultKey, RESULT_UNKNOWN_COMMAND);
-    else
-      DisconnectCommand(destination, &response);
-  } else if (command == kPostMessage) {
-    if (destination == -1)  // Destination required for this command.
-      response.SetInteger(kResultKey, RESULT_UNKNOWN_COMMAND);
-    else
-      PostMessageCommand(destination, content, &response);
-  } else {
-    // Unknown command
-    NOTREACHED();
-    response.SetInteger(kResultKey, RESULT_UNKNOWN_COMMAND);
-  }
-  SendResponse(response, message.tool(), message.destination());
-}
-
-void ExtensionPortsRemoteService::OnConnectionLost() {
-  VLOG(1) << "OnConnectionLost";
-  DCHECK_EQ(MessageLoop::current()->type(), MessageLoop::TYPE_UI);
-  DCHECK(service_);
-  for (PortIdSet::iterator it = openPortIds_.begin();
-      it != openPortIds_.end();
-      ++it)
-    service_->CloseChannel(*it);
-  openPortIds_.clear();
-}
-
-void ExtensionPortsRemoteService::SendResponse(
-    const Value& response, const std::string& tool,
-    const std::string& destination) {
-  std::string response_content;
-  base::JSONWriter::Write(&response, false, &response_content);
-  scoped_ptr<DevToolsRemoteMessage> response_message(
-      DevToolsRemoteMessageBuilder::instance().Create(
-          tool, destination, response_content));
-  delegate_->Send(*response_message.get());
-}
-
-bool ExtensionPortsRemoteService::Send(IPC::Message *message) {
-  DCHECK_EQ(MessageLoop::current()->type(), MessageLoop::TYPE_UI);
-
-  IPC_BEGIN_MESSAGE_MAP(ExtensionPortsRemoteService, *message)
-    IPC_MESSAGE_HANDLER(ExtensionMsg_MessageInvoke, OnExtensionMessageInvoke)
-    IPC_MESSAGE_HANDLER(ExtensionMsg_DeliverMessage, OnDeliverMessage)
-    IPC_MESSAGE_UNHANDLED_ERROR()
-  IPC_END_MESSAGE_MAP()
-
-  delete message;
-  return true;
-}
-
-void ExtensionPortsRemoteService::OnExtensionMessageInvoke(
-    const std::string& extension_id,
-    const std::string& function_name,
-    const ListValue& args,
-    const GURL& event_url) {
-  if (function_name == ExtensionMessageService::kDispatchOnDisconnect) {
-    DCHECK_EQ(args.GetSize(), 1u);
-    int port_id;
-    if (args.GetInteger(0, &port_id))
-      OnExtensionPortDisconnected(port_id);
-  } else if (function_name == ExtensionMessageService::kDispatchOnConnect) {
-    // There is no way for this service to be addressed and receive
-    // connections.
-    NOTREACHED() << function_name << " shouldn't be called.";
-  } else {
-    NOTREACHED() << function_name << " shouldn't be called.";
-  }
-}
-
-void ExtensionPortsRemoteService::OnDeliverMessage(
-    int port_id, const std::string& message) {
-  VLOG(1) << "Message event: from port " << port_id << ", < " << message << ">";
-  // Transpose the information into a JSON message for the external client.
-  DictionaryValue content;
-  content.SetString(kCommandKey, kOnMessage);
-  content.SetInteger(kResultKey, RESULT_OK);
-  // Turn the stringified message body back into JSON.
-  Value* data = base::JSONReader::Read(message, false);
-  if (!data) {
-    NOTREACHED();
-    return;
-  }
-  content.Set(kDataKey, data);
-  SendResponse(content, kToolName, base::IntToString(port_id));
-}
-
-void ExtensionPortsRemoteService::OnExtensionPortDisconnected(int port_id) {
-  VLOG(1) << "Disconnect event for port " << port_id;
-  openPortIds_.erase(port_id);
-  DictionaryValue content;
-  content.SetString(kCommandKey, kOnDisconnect);
-  content.SetInteger(kResultKey, RESULT_OK);
-  SendResponse(content, kToolName, base::IntToString(port_id));
-}
-
-void ExtensionPortsRemoteService::ConnectCommand(
-    DictionaryValue* content, DictionaryValue* response) {
-  // Parse out the parameters.
-  DictionaryValue* data;
-  if (!content->GetDictionary(kDataKey, &data)) {
-    response->SetInteger(kResultKey, RESULT_PARAMETER_ERROR);
-    return;
-  }
-  std::string extension_id;
-  if (!data->GetString(kExtensionIdKey, &extension_id)) {
-    response->SetInteger(kResultKey, RESULT_PARAMETER_ERROR);
-    return;
-  }
-  std::string channel_name = "";
-  data->GetString(kChannelNameKey, &channel_name);  // optional.
-  int tab_id = -1;
-  data->GetInteger(kTabIdKey, &tab_id);  // optional.
-  int port_id;
-  if (tab_id != -1) {  // Resolve the tab ID.
-    const InspectableTabProxy::TabMap& tab_map =
-        delegate_->inspectable_tab_proxy()->tab_map();
-    InspectableTabProxy::TabMap::const_iterator it = tab_map.find(tab_id);
-    TabContents* tab_contents = NULL;
-    if (it != tab_map.end())
-      tab_contents = it->second->tab_contents();
-    if (!tab_contents) {
-      VLOG(1) << "tab not found: " << tab_id;
-      response->SetInteger(kResultKey, RESULT_TAB_NOT_FOUND);
-      return;
-    }
-    // Ask the ExtensionMessageService to open the channel.
-    VLOG(1) << "Connect: extension_id <" << extension_id
-            << ">, channel_name <" << channel_name
-            << ">, tab " << tab_id;
-    DCHECK(service_);
-    port_id = service_->OpenSpecialChannelToTab(
-        extension_id, channel_name, tab_contents, this);
-  } else {  // no tab: channel to an extension page.
-    // Ask the ExtensionMessageService to open the channel.
-    VLOG(1) << "Connect: extension_id <" << extension_id
-            << ">, channel_name <" << channel_name << ">";
-    DCHECK(service_);
-    port_id = service_->OpenSpecialChannelToExtension(
-        extension_id, channel_name, "null", this);
-  }
-  if (port_id == -1) {
-    // Failure: probably the extension ID doesn't exist.
-    VLOG(1) << "Connect failed";
-    response->SetInteger(kResultKey, RESULT_CONNECT_FAILED);
-    return;
-  }
-  VLOG(1) << "Connected: port " << port_id;
-  openPortIds_.insert(port_id);
-  // Reply to external client with the port ID assigned to the new channel.
-  DictionaryValue* reply_data = new DictionaryValue();
-  reply_data->SetInteger(kPortIdKey, port_id);
-  response->Set(kDataKey, reply_data);
-  response->SetInteger(kResultKey, RESULT_OK);
-}
-
-void ExtensionPortsRemoteService::DisconnectCommand(
-    int port_id, DictionaryValue* response) {
-  VLOG(1) << "Disconnect port " << port_id;
-  PortIdSet::iterator portEntry = openPortIds_.find(port_id);
-  if (portEntry == openPortIds_.end()) {  // unknown port ID.
-    VLOG(1) << "unknown port: " << port_id;
-    response->SetInteger(kResultKey, RESULT_UNKNOWN_PORT);
-    return;
-  }
-  DCHECK(service_);
-  service_->CloseChannel(port_id);
-  openPortIds_.erase(portEntry);
-  response->SetInteger(kResultKey, RESULT_OK);
-}
-
-void ExtensionPortsRemoteService::PostMessageCommand(
-    int port_id, DictionaryValue* content, DictionaryValue* response) {
-  Value* data;
-  if (!content->Get(kDataKey, &data)) {
-    response->SetInteger(kResultKey, RESULT_PARAMETER_ERROR);
-    return;
-  }
-  std::string message;
-  // Stringified the JSON message body.
-  base::JSONWriter::Write(data, false, &message);
-  VLOG(1) << "postMessage: port " << port_id
-          << ", message: <" << message << ">";
-  PortIdSet::iterator portEntry = openPortIds_.find(port_id);
-  if (portEntry == openPortIds_.end()) {  // Unknown port ID.
-    VLOG(1) << "unknown port: " << port_id;
-    response->SetInteger(kResultKey, RESULT_UNKNOWN_PORT);
-    return;
-  }
-  // Post the message through the ExtensionMessageService.
-  DCHECK(service_);
-  service_->PostMessageFromRenderer(port_id, message);
-  // Confirm to the external client that we sent its message.
-  response->SetInteger(kResultKey, RESULT_OK);
-}