Revert 139424 - Remove V1 authenticators.

remoting/protocol/me2me_host_authenticator_factory.cc

 // Copyright (c) 2012 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/protocol/me2me_host_authenticator_factory.h"
 
 #include "base/base64.h"
 #include "base/string_util.h"
 #include "crypto/rsa_private_key.h"
 #include "remoting/protocol/channel_authenticator.h"
 #include "remoting/protocol/negotiating_authenticator.h"
+#include "remoting/protocol/v1_authenticator.h"
 #include "third_party/libjingle/source/talk/xmllite/xmlelement.h"
 
 namespace remoting {
 namespace protocol {
 
 namespace {
 
 // Authenticator that accepts one message and rejects connection after that.
 class RejectingAuthenticator : public Authenticator {
  public:
@@ skipping 60 matching lines @@
   // Verify that the client's jid is an ASCII string, and then check
   // that the client has the same bare jid as the host, i.e. client's
   // full JID starts with host's bare jid. Comparison is case
   // insensitive.
   if (!IsStringASCII(remote_jid) ||
       !StartsWithASCII(remote_jid, local_jid.substr(0, slash_pos + 1), false)) {
     LOG(ERROR) << "Rejecting incoming connection from " << remote_jid;
     return scoped_ptr<Authenticator>(new RejectingAuthenticator());
   }
 
+  if (shared_secret_hash_.hash_function == AuthenticationMethod::NONE &&
+      shared_secret_hash_.value.empty()) {
+    // PIN isn't set. Enable V1 authentication.
+    if (!NegotiatingAuthenticator::IsNegotiableMessage(first_message)) {
+      return scoped_ptr<Authenticator>(
+          new V1HostAuthenticator(local_cert_, *local_private_key_,
+                                  "", remote_jid));
+    }
+  }
+
   return NegotiatingAuthenticator::CreateForHost(
       local_cert_, *local_private_key_, shared_secret_hash_.value,
       shared_secret_hash_.hash_function);
 }
 
 }  // namespace protocol
 }  // namespace remoting