Revert of Remove webrtc/libjingle/{xmllite,xmpp}

webrtc/libjingle/xmpp/xmpptask.cc

Index: webrtc/libjingle/xmpp/xmpptask.cc
diff --git a/webrtc/libjingle/xmpp/xmpptask.cc b/webrtc/libjingle/xmpp/xmpptask.cc
new file mode 100644
index 0000000000000000000000000000000000000000..84f9ba6b920b76da1716e21a62af58fb489902dd
--- /dev/null
+++ b/webrtc/libjingle/xmpp/xmpptask.cc
@@ -0,0 +1,158 @@
+/*
+ *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "webrtc/libjingle/xmpp/constants.h"
+#include "webrtc/libjingle/xmpp/xmppclient.h"
+#include "webrtc/libjingle/xmpp/xmppengine.h"
+#include "webrtc/libjingle/xmpp/xmpptask.h"
+
+namespace buzz {
+
+XmppClientInterface::XmppClientInterface() {
+}
+
+XmppClientInterface::~XmppClientInterface() {
+}
+
+XmppTask::XmppTask(XmppTaskParentInterface* parent,
+                   XmppEngine::HandlerLevel level)
+    : XmppTaskBase(parent), stopped_(false) {
+#if !defined(NDEBUG)
+  debug_force_timeout_ = false;
+#endif
+
+  id_ = GetClient()->NextId();
+  GetClient()->AddXmppTask(this, level);
+  GetClient()->SignalDisconnected.connect(this, &XmppTask::OnDisconnect);
+}
+
+XmppTask::~XmppTask() {
+  StopImpl();
+}
+
+void XmppTask::StopImpl() {
+  while (NextStanza() != NULL) {}
+  if (!stopped_) {
+    GetClient()->RemoveXmppTask(this);
+    GetClient()->SignalDisconnected.disconnect(this);
+    stopped_ = true;
+  }
+}
+
+XmppReturnStatus XmppTask::SendStanza(const XmlElement* stanza) {
+  if (stopped_)
+    return XMPP_RETURN_BADSTATE;
+  return GetClient()->SendStanza(stanza);
+}
+
+XmppReturnStatus XmppTask::SendStanzaError(const XmlElement* element_original,
+                                           XmppStanzaError code,
+                                           const std::string& text) {
+  if (stopped_)
+    return XMPP_RETURN_BADSTATE;
+  return GetClient()->SendStanzaError(element_original, code, text);
+}
+
+void XmppTask::Stop() {
+  StopImpl();
+  Task::Stop();
+}
+
+void XmppTask::OnDisconnect() {
+  Error();
+}
+
+void XmppTask::QueueStanza(const XmlElement* stanza) {
+#if !defined(NDEBUG)
+  if (debug_force_timeout_)
+    return;
+#endif
+
+  stanza_queue_.push_back(new XmlElement(*stanza));
+  Wake();
+}
+
+const XmlElement* XmppTask::NextStanza() {
+  XmlElement* result = NULL;
+  if (!stanza_queue_.empty()) {
+    result = stanza_queue_.front();
+    stanza_queue_.pop_front();
+  }
+  next_stanza_.reset(result);
+  return result;
+}
+
+XmlElement* XmppTask::MakeIq(const std::string& type,
+                             const buzz::Jid& to,
+                             const std::string& id) {
+  XmlElement* result = new XmlElement(QN_IQ);
+  if (!type.empty())
+    result->AddAttr(QN_TYPE, type);
+  if (!to.IsEmpty())
+    result->AddAttr(QN_TO, to.Str());
+  if (!id.empty())
+    result->AddAttr(QN_ID, id);
+  return result;
+}
+
+XmlElement* XmppTask::MakeIqResult(const XmlElement * query) {
+  XmlElement* result = new XmlElement(QN_IQ);
+  result->AddAttr(QN_TYPE, STR_RESULT);
+  if (query->HasAttr(QN_FROM)) {
+    result->AddAttr(QN_TO, query->Attr(QN_FROM));
+  }
+  result->AddAttr(QN_ID, query->Attr(QN_ID));
+  return result;
+}
+
+bool XmppTask::MatchResponseIq(const XmlElement* stanza,
+                               const Jid& to,
+                               const std::string& id) {
+  if (stanza->Name() != QN_IQ)
+    return false;
+
+  if (stanza->Attr(QN_ID) != id)
+    return false;
+
+  return MatchStanzaFrom(stanza, to);
+}
+
+bool XmppTask::MatchStanzaFrom(const XmlElement* stanza,
+                               const Jid& to) {
+  Jid from(stanza->Attr(QN_FROM));
+  if (from == to)
+    return true;
+
+  // We address the server as "", check if we are doing so here.
+  if (!to.IsEmpty())
+    return false;
+
+  // It is legal for the server to identify itself with "domain" or
+  // "myself@domain"
+  Jid me = GetClient()->jid();
+  return (from == Jid(me.domain())) || (from == me.BareJid());
+}
+
+bool XmppTask::MatchRequestIq(const XmlElement* stanza,
+                              const std::string& type,
+                              const QName& qn) {
+  if (stanza->Name() != QN_IQ)
+    return false;
+
+  if (stanza->Attr(QN_TYPE) != type)
+    return false;
+
+  if (stanza->FirstNamed(qn) == NULL)
+    return false;
+
+  return true;
+}
+
+}