Revert of Use standard ICE in Chromoting.

remoting/protocol/jingle_messages.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/jingle_messages.h"
 
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 #include "remoting/base/constants.h"
 #include "remoting/protocol/content_description.h"
 #include "remoting/protocol/name_value_map.h"
 #include "third_party/webrtc/libjingle/xmllite/xmlelement.h"
 
 using buzz::QName;
 using buzz::XmlElement;
 
 namespace remoting {
 namespace protocol {
 
-namespace {
-
 const char kJabberNamespace[] = "jabber:client";
 const char kJingleNamespace[] = "urn:xmpp:jingle:1";
+const char kP2PTransportNamespace[] = "http://www.google.com/transport/p2p";
 
-// Namespace for transport messages for legacy GICE.
-const char kGiceTransportNamespace[] = "http://www.google.com/transport/p2p";
-
-// Namespace for transport messages when using standard ICE.
-const char kIceTransportNamespace[] = "google:remoting:ice";
+namespace {
 
 const char kEmptyNamespace[] = "";
 const char kXmlNamespace[] = "http://www.w3.org/XML/1998/namespace";
 
 const int kPortMin = 1000;
 const int kPortMax = 65535;
 
 const NameMapElement<JingleMessage::ActionType> kActionTypes[] = {
   { JingleMessage::SESSION_INITIATE, "session-initiate" },
   { JingleMessage::SESSION_ACCEPT, "session-accept" },
   { JingleMessage::SESSION_TERMINATE, "session-terminate" },
   { JingleMessage::SESSION_INFO, "session-info" },
   { JingleMessage::TRANSPORT_INFO, "transport-info" },
 };
 
 const NameMapElement<JingleMessage::Reason> kReasons[] = {
   { JingleMessage::SUCCESS, "success" },
   { JingleMessage::DECLINE, "decline" },
   { JingleMessage::CANCEL, "cancel" },
   { JingleMessage::GENERAL_ERROR, "general-error" },
   { JingleMessage::INCOMPATIBLE_PARAMETERS, "incompatible-parameters" },
 };
 
-bool ParseIceCredentials(const buzz::XmlElement* element,
-                         JingleMessage::IceCredentials* credentials) {
-  DCHECK(element->Name() == QName(kIceTransportNamespace, "credentials"));
-
-  const std::string& channel = element->Attr(QName(kEmptyNamespace, "channel"));
-  const std::string& ufrag =
-      element->Attr(QName(kEmptyNamespace, "ufrag"));
-  const std::string& password =
-      element->Attr(QName(kEmptyNamespace, "password"));
-
-  if (channel.empty() || ufrag.empty() || password.empty()) {
-    return false;
-  }
-
-  credentials->channel = channel;
-  credentials->ufrag = ufrag;
-  credentials->password = password;
-
-  return true;
-}
-
-bool ParseIceCandidate(const buzz::XmlElement* element,
-                       JingleMessage::NamedCandidate* candidate) {
-  DCHECK(element->Name() == QName(kIceTransportNamespace, "candidate"));
-
-  const std::string& name = element->Attr(QName(kEmptyNamespace, "name"));
-  const std::string& foundation =
-      element->Attr(QName(kEmptyNamespace, "foundation"));
-  const std::string& address = element->Attr(QName(kEmptyNamespace, "address"));
-  const std::string& port_str = element->Attr(QName(kEmptyNamespace, "port"));
-  const std::string& type = element->Attr(QName(kEmptyNamespace, "type"));
-  const std::string& protocol =
-      element->Attr(QName(kEmptyNamespace, "protocol"));
-  const std::string& priority_str =
-      element->Attr(QName(kEmptyNamespace, "priority"));
-  const std::string& generation_str =
-      element->Attr(QName(kEmptyNamespace, "generation"));
-
-  int port;
-  unsigned priority;
-  int generation;
-  if (name.empty() || foundation.empty() || address.empty() ||
-      !base::StringToInt(port_str, &port) || port < kPortMin ||
-      port > kPortMax || type.empty() || protocol.empty() ||
-      !base::StringToUint(priority_str, &priority) ||
-      !base::StringToInt(generation_str, &generation)) {
-    return false;
-  }
-
-  candidate->name = name;
-
-  candidate->candidate.set_foundation(foundation);
-  candidate->candidate.set_address(rtc::SocketAddress(address, port));
-  candidate->candidate.set_type(type);
-  candidate->candidate.set_protocol(protocol);
-  candidate->candidate.set_priority(priority);
-  candidate->candidate.set_generation(generation);
-
-  return true;
-}
-
-bool ParseIceTransportInfo(
-    const buzz::XmlElement* element,
-    std::list<JingleMessage::IceCredentials>* ice_credentials,
-    std::list<JingleMessage::NamedCandidate>* candidates) {
-  DCHECK(element->Name() == QName(kIceTransportNamespace, "transport"));
-
-  ice_credentials->clear();
-  candidates->clear();
-
-  QName qn_credentials(kIceTransportNamespace, "credentials");
-  for (const XmlElement* credentials_tag = element->FirstNamed(qn_credentials);
-       credentials_tag;
-       credentials_tag = credentials_tag->NextNamed(qn_credentials)) {
-    JingleMessage::IceCredentials credentials;
-    if (!ParseIceCredentials(credentials_tag, &credentials))
-      return false;
-    ice_credentials->push_back(credentials);
-  }
-
-  QName qn_candidate(kIceTransportNamespace, "candidate");
-  for (const XmlElement* candidate_tag = element->FirstNamed(qn_candidate);
-       candidate_tag; candidate_tag = candidate_tag->NextNamed(qn_candidate)) {
-    JingleMessage::NamedCandidate candidate;
-    if (!ParseIceCandidate(candidate_tag, &candidate))
-      return false;
-    candidates->push_back(candidate);
-  }
-
-  return true;
-}
-
-bool ParseGiceCandidate(const buzz::XmlElement* element,
-                        JingleMessage::NamedCandidate* candidate) {
-  DCHECK(element->Name() == QName(kGiceTransportNamespace, "candidate"));
+bool ParseCandidate(const buzz::XmlElement* element,
+                    JingleMessage::NamedCandidate* candidate) {
+  DCHECK(element->Name() == QName(kP2PTransportNamespace, "candidate"));
 
   const std::string& name = element->Attr(QName(kEmptyNamespace, "name"));
   const std::string& address = element->Attr(QName(kEmptyNamespace, "address"));
   const std::string& port_str = element->Attr(QName(kEmptyNamespace, "port"));
   const std::string& type = element->Attr(QName(kEmptyNamespace, "type"));
   const std::string& protocol =
       element->Attr(QName(kEmptyNamespace, "protocol"));
   const std::string& username =
       element->Attr(QName(kEmptyNamespace, "username"));
   const std::string& password =
@@ skipping 20 matching lines @@
   candidate->candidate.set_type(type);
   candidate->candidate.set_protocol(protocol);
   candidate->candidate.set_username(username);
   candidate->candidate.set_password(password);
   candidate->candidate.set_preference(static_cast<float>(preference));
   candidate->candidate.set_generation(generation);
 
   return true;
 }
 
-bool ParseGiceTransportInfo(
-    const buzz::XmlElement* element,
-    std::list<JingleMessage::NamedCandidate>* candidates) {
-  DCHECK(element->Name() == QName(kGiceTransportNamespace, "transport"));
-
-  candidates->clear();
-
-  QName qn_candidate(kGiceTransportNamespace, "candidate");
-  for (const XmlElement* candidate_tag = element->FirstNamed(qn_candidate);
-       candidate_tag; candidate_tag = candidate_tag->NextNamed(qn_candidate)) {
-    JingleMessage::NamedCandidate candidate;
-    if (!ParseGiceCandidate(candidate_tag, &candidate))
-      return false;
-    candidates->push_back(candidate);
-  }
-
-  return true;
-}
-
-XmlElement* FormatIceCredentials(
-    const JingleMessage::IceCredentials& credentials) {
+XmlElement* FormatCandidate(const JingleMessage::NamedCandidate& candidate) {
   XmlElement* result =
-      new XmlElement(QName(kIceTransportNamespace, "credentials"));
-  result->SetAttr(QName(kEmptyNamespace, "channel"), credentials.channel);
-  result->SetAttr(QName(kEmptyNamespace, "ufrag"), credentials.ufrag);
-  result->SetAttr(QName(kEmptyNamespace, "password"), credentials.password);
-  return result;
-}
-
-XmlElement* FormatIceCandidate(const JingleMessage::NamedCandidate& candidate) {
-  XmlElement* result =
-      new XmlElement(QName(kIceTransportNamespace, "candidate"));
-  result->SetAttr(QName(kEmptyNamespace, "name"), candidate.name);
-  result->SetAttr(QName(kEmptyNamespace, "foundation"),
-                  candidate.candidate.foundation());
-  result->SetAttr(QName(kEmptyNamespace, "address"),
-                  candidate.candidate.address().ipaddr().ToString());
-  result->SetAttr(QName(kEmptyNamespace, "port"),
-                  base::IntToString(candidate.candidate.address().port()));
-  result->SetAttr(QName(kEmptyNamespace, "type"), candidate.candidate.type());
-  result->SetAttr(QName(kEmptyNamespace, "protocol"),
-                  candidate.candidate.protocol());
-  result->SetAttr(QName(kEmptyNamespace, "priority"),
-                  base::DoubleToString(candidate.candidate.priority()));
-  result->SetAttr(QName(kEmptyNamespace, "generation"),
-                  base::IntToString(candidate.candidate.generation()));
-  return result;
-}
-
-XmlElement* FormatGiceCandidate(
-    const JingleMessage::NamedCandidate& candidate) {
-  XmlElement* result =
-      new XmlElement(QName(kGiceTransportNamespace, "candidate"));
+      new XmlElement(QName(kP2PTransportNamespace, "candidate"));
   result->SetAttr(QName(kEmptyNamespace, "name"), candidate.name);
   result->SetAttr(QName(kEmptyNamespace, "address"),
                   candidate.candidate.address().ipaddr().ToString());
   result->SetAttr(QName(kEmptyNamespace, "port"),
                   base::IntToString(candidate.candidate.address().port()));
   result->SetAttr(QName(kEmptyNamespace, "type"), candidate.candidate.type());
   result->SetAttr(QName(kEmptyNamespace, "protocol"),
                   candidate.candidate.protocol());
   result->SetAttr(QName(kEmptyNamespace, "username"),
                   candidate.candidate.username());
   result->SetAttr(QName(kEmptyNamespace, "password"),
                   candidate.candidate.password());
   result->SetAttr(QName(kEmptyNamespace, "preference"),
                   base::DoubleToString(candidate.candidate.preference()));
   result->SetAttr(QName(kEmptyNamespace, "generation"),
                   base::IntToString(candidate.candidate.generation()));
   return result;
 }
 
 }  // namespace
 
+JingleMessage::NamedCandidate::NamedCandidate() {
+}
+
 JingleMessage::NamedCandidate::NamedCandidate(
     const std::string& name,
     const cricket::Candidate& candidate)
     : name(name),
       candidate(candidate) {
 }
 
-JingleMessage::IceCredentials::IceCredentials(std::string channel,
-                                              std::string ufrag,
-                                              std::string password)
-    : channel(channel), ufrag(ufrag), password(password) {
-}
-
 // static
 bool JingleMessage::IsJingleMessage(const buzz::XmlElement* stanza) {
   return stanza->Name() == QName(kJabberNamespace, "iq") &&
          stanza->Attr(QName(std::string(), "type")) == "set" &&
          stanza->FirstNamed(QName(kJingleNamespace, "jingle")) != nullptr;
 }
 
 // static
 std::string JingleMessage::GetActionName(ActionType action) {
   return ValueToName(kActionTypes, action);
 }
 
-JingleMessage::JingleMessage() {
+JingleMessage::JingleMessage()
+    : action(UNKNOWN_ACTION),
+      reason(UNKNOWN_REASON) {
 }
 
-JingleMessage::JingleMessage(const std::string& to,
-                             ActionType action,
-                             const std::string& sid)
-    : to(to), action(action), sid(sid) {
+JingleMessage::JingleMessage(
+    const std::string& to_value,
+    ActionType action_value,
+    const std::string& sid_value)
+    : to(to_value),
+      action(action_value),
+      sid(sid_value),
+      reason(UNKNOWN_REASON) {
 }
 
 JingleMessage::~JingleMessage() {
 }
 
 bool JingleMessage::ParseXml(const buzz::XmlElement* stanza,
                              std::string* error) {
   if (!IsJingleMessage(stanza)) {
     *error = "Not a jingle message";
     return false;
@@ skipping 73 matching lines @@
       return false;
     }
 
     description = ContentDescription::ParseXml(description_tag);
     if (!description.get()) {
       *error = "Failed to parse content description";
       return false;
     }
   }
 
-  const XmlElement* ice_transport_tag = content_tag->FirstNamed(
-      QName(kIceTransportNamespace, "transport"));
-  const XmlElement* gice_transport_tag = content_tag->FirstNamed(
-      QName(kGiceTransportNamespace, "transport"));
-  if (ice_transport_tag && gice_transport_tag) {
-    *error = "ICE and GICE transport information is found in the same message";
-    return false;
-  } else if (ice_transport_tag) {
-    standard_ice = true;
-    if (!ParseIceTransportInfo(ice_transport_tag, &ice_credentials,
-                               &candidates)) {
-      *error = "Failed to parse transport info";
-      return false;
-    }
-  } else if (gice_transport_tag) {
-    standard_ice = false;
-    ice_credentials.clear();
-    if (!ParseGiceTransportInfo(gice_transport_tag, &candidates)) {
-      *error = "Failed to parse transport info";
-      return false;
+  candidates.clear();
+  const XmlElement* transport_tag = content_tag->FirstNamed(
+      QName(kP2PTransportNamespace, "transport"));
+  if (transport_tag) {
+    QName qn_candidate(kP2PTransportNamespace, "candidate");
+    for (const XmlElement* candidate_tag =
+             transport_tag->FirstNamed(qn_candidate);
+         candidate_tag != nullptr;
+         candidate_tag = candidate_tag->NextNamed(qn_candidate)) {
+      NamedCandidate candidate;
+      if (!ParseCandidate(candidate_tag, &candidate)) {
+        *error = "Failed to parse candidates";
+        return false;
+      }
+      candidates.push_back(candidate);
     }
   }
 
   return true;
 }
 
 scoped_ptr<buzz::XmlElement> JingleMessage::ToXml() const {
   scoped_ptr<XmlElement> root(
       new XmlElement(QName("jabber:client", "iq"), true));
 
@@ skipping 38 matching lines @@
         new XmlElement(QName(kJingleNamespace, "content"));
     jingle_tag->AddElement(content_tag);
 
     content_tag->AddAttr(QName(kEmptyNamespace, "name"),
                          ContentDescription::kChromotingContentName);
     content_tag->AddAttr(QName(kEmptyNamespace, "creator"), "initiator");
 
     if (description.get())
       content_tag->AddElement(description->ToXml());
 
-    if (standard_ice) {
-      XmlElement* transport_tag =
-          new XmlElement(QName(kIceTransportNamespace, "transport"), true);
-      content_tag->AddElement(transport_tag);
-      for (std::list<IceCredentials>::const_iterator it =
-               ice_credentials.begin();
-           it != ice_credentials.end(); ++it) {
-        transport_tag->AddElement(FormatIceCredentials(*it));
-      }
-      for (std::list<NamedCandidate>::const_iterator it = candidates.begin();
-           it != candidates.end(); ++it) {
-        transport_tag->AddElement(FormatIceCandidate(*it));
-      }
-    } else {
-      XmlElement* transport_tag =
-          new XmlElement(QName(kGiceTransportNamespace, "transport"), true);
-      content_tag->AddElement(transport_tag);
-      for (std::list<NamedCandidate>::const_iterator it = candidates.begin();
-           it != candidates.end(); ++it) {
-        transport_tag->AddElement(FormatGiceCandidate(*it));
-      }
+    XmlElement* transport_tag =
+        new XmlElement(QName(kP2PTransportNamespace, "transport"), true);
+    content_tag->AddElement(transport_tag);
+    for (std::list<NamedCandidate>::const_iterator it = candidates.begin();
+         it != candidates.end(); ++it) {
+      transport_tag->AddElement(FormatCandidate(*it));
     }
   }
 
   return root.Pass();
 }
 
 JingleMessageReply::JingleMessageReply()
     : type(REPLY_RESULT),
       error_type(NONE) {
 }
@@ skipping 89 matching lines @@
     text_elem->SetAttr(QName(kXmlNamespace, "lang"), "en");
     text_elem->SetBodyText(error_text);
     error->AddElement(text_elem);
   }
 
   return iq.Pass();
 }
 
 }  // namespace protocol
 }  // namespace remoting