Remove ClientLogin support from remoting host

remoting/host/it2me/it2me_native_messaging_host.cc

 // Copyright 2013 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.
 
 #include "remoting/host/it2me/it2me_native_messaging_host.h"
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/strings/string_number_conversions.h"
+#include "base/strings/string_util.h"
 #include "base/strings/stringize_macros.h"
 #include "base/threading/thread.h"
 #include "base/values.h"
 #include "media/base/media.h"
 #include "net/base/net_util.h"
 #include "net/url_request/url_request_context_getter.h"
-#include "remoting/base/auth_token_util.h"
 #include "remoting/base/service_urls.h"
 #include "remoting/host/chromoting_host_context.h"
 #include "remoting/host/host_exit_codes.h"
 #include "remoting/protocol/name_value_map.h"
 
 namespace remoting {
 
 namespace {
 
 const remoting::protocol::NameMapElement<It2MeHostState> kIt2MeHostStates[] = {
@@ skipping 125 matching lines @@
     return;
   }
 
   std::string auth_service_with_token;
   if (!message.GetString("authServiceWithToken", &auth_service_with_token)) {
     SendErrorAndExit(response.Pass(),
                      "'authServiceWithToken' not found in request.");
     return;
   }
 
-  ParseAuthTokenWithService(auth_service_with_token,
-                            &xmpp_config.auth_token,
-                            &xmpp_config.auth_service);
-  if (xmpp_config.auth_token.empty()) {
-    SendErrorAndExit(
-        response.Pass(),
-        "Invalid 'authServiceWithToken': " + auth_service_with_token);
+  // For backward compatibility the webapp still passes OAuth service as part of
+  // the authServiceWithToken field. But auth service part is always expected to
+  // be set to oauth2.
+  const char kOAuth2ServicePrefix[] = "oauth2:";
+  if (!StartsWithASCII(auth_service_with_token, kOAuth2ServicePrefix, true)) {
+    SendErrorAndExit(response.Pass(), "Invalid 'authServiceWithToken': " +
+                                          auth_service_with_token);
     return;
   }
 
+  xmpp_config.auth_token =
+      auth_service_with_token.substr(strlen(kOAuth2ServicePrefix));
+
 #if !defined(NDEBUG)
   std::string address;
   if (!message.GetString("xmppServerAddress", &address)) {
     SendErrorAndExit(response.Pass(),
                      "'xmppServerAddress' not found in request.");
     return;
   }
 
   if (!net::ParseHostAndPort(
            address, &xmpp_server_config_.host, &xmpp_server_config_.port)) {
@@ skipping 119 matching lines @@
 }
 
 /* static */
 std::string It2MeNativeMessagingHost::HostStateToString(
     It2MeHostState host_state) {
   return ValueToName(kIt2MeHostStates, host_state);
 }
 
 }  // namespace remoting