Remove webrtc/libjingle/{xmllite,xmpp}

webrtc/libjingle/xmpp/pubsub_task.cc

-/*
- *  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/pubsub_task.h"
-
-#include <map>
-#include <memory>
-#include <string>
-
-#include "webrtc/libjingle/xmpp/constants.h"
-#include "webrtc/libjingle/xmpp/xmppengine.h"
-#include "webrtc/base/common.h"
-
-namespace buzz {
-
-PubsubTask::PubsubTask(XmppTaskParentInterface* parent,
-                       const buzz::Jid& pubsub_node_jid)
-    : buzz::XmppTask(parent, buzz::XmppEngine::HL_SENDER),
-      pubsub_node_jid_(pubsub_node_jid) {
-}
-
-PubsubTask::~PubsubTask() {
-}
-
-// Checks for pubsub publish events as well as responses to get IQs.
-bool PubsubTask::HandleStanza(const buzz::XmlElement* stanza) {
-  const buzz::QName& stanza_name(stanza->Name());
-  if (stanza_name == buzz::QN_MESSAGE) {
-    if (MatchStanzaFrom(stanza, pubsub_node_jid_)) {
-      const buzz::XmlElement* pubsub_event_item =
-          stanza->FirstNamed(QN_PUBSUB_EVENT);
-      if (pubsub_event_item != NULL) {
-        QueueStanza(pubsub_event_item);
-        return true;
-      }
-    }
-  } else if (stanza_name == buzz::QN_IQ) {
-    if (MatchResponseIq(stanza, pubsub_node_jid_, task_id())) {
-      const buzz::XmlElement* pubsub_item = stanza->FirstNamed(QN_PUBSUB);
-      if (pubsub_item != NULL) {
-        QueueStanza(pubsub_item);
-        return true;
-      }
-    }
-  }
-  return false;
-}
-
-int PubsubTask::ProcessResponse() {
-  const buzz::XmlElement* stanza = NextStanza();
-  if (stanza == NULL) {
-    return STATE_BLOCKED;
-  }
-
-  if (stanza->Attr(buzz::QN_TYPE) == buzz::STR_ERROR) {
-    OnPubsubError(stanza->FirstNamed(buzz::QN_ERROR));
-    return STATE_RESPONSE;
-  }
-
-  const buzz::QName& stanza_name(stanza->Name());
-  if (stanza_name == QN_PUBSUB_EVENT) {
-    HandlePubsubEventMessage(stanza);
-  } else if (stanza_name == QN_PUBSUB) {
-    HandlePubsubIqGetResponse(stanza);
-  }
-
-  return STATE_RESPONSE;
-}
-
-// Registers a function pointer to be called when the value of the pubsub
-// node changes.
-// Note that this does not actually change the XMPP pubsub
-// subscription. All publish events are always received by everyone in the
-// MUC. This function just controls whether the handle function will get
-// called when the event is received.
-bool PubsubTask::SubscribeToNode(const std::string& pubsub_node,
-                                 NodeHandler handler) {
-  subscribed_nodes_[pubsub_node] = handler;
-  std::unique_ptr<buzz::XmlElement> get_iq_request(
-      MakeIq(buzz::STR_GET, pubsub_node_jid_, task_id()));
-  if (!get_iq_request) {
-    return false;
-  }
-  buzz::XmlElement* pubsub_element = new buzz::XmlElement(QN_PUBSUB, true);
-  buzz::XmlElement* items_element = new buzz::XmlElement(QN_PUBSUB_ITEMS, true);
-
-  items_element->AddAttr(buzz::QN_NODE, pubsub_node);
-  pubsub_element->AddElement(items_element);
-  get_iq_request->AddElement(pubsub_element);
-
-  if (SendStanza(get_iq_request.get()) != buzz::XMPP_RETURN_OK) {
-    return false;
-  }
-
-  return true;
-}
-
-void PubsubTask::UnsubscribeFromNode(const std::string& pubsub_node) {
-  subscribed_nodes_.erase(pubsub_node);
-}
-
-void PubsubTask::OnPubsubError(const buzz::XmlElement* error_stanza) {
-}
-
-// Checks for a pubsub event message like the following:
-//
-//  <message from="muvc-private-chat-some-id@groupchat.google.com"
-//   to="john@site.com/gcomm582B14C9">
-//    <event xmlns:"http://jabber.org/protocol/pubsub#event">
-//      <items node="node-name">
-//        <item id="some-id">
-//          <payload/>
-//        </item>
-//      </items>
-//    </event>
-//  </message>
-//
-// It also checks for retraction event messages like the following:
-//
-//  <message from="muvc-private-chat-some-id@groupchat.google.com"
-//   to="john@site.com/gcomm582B14C9">
-//    <event xmlns:"http://jabber.org/protocol/pubsub#event">
-//      <items node="node-name">
-//        <retract id="some-id"/>
-//      </items>
-//    </event>
-//  </message>
-void PubsubTask::HandlePubsubEventMessage(
-    const buzz::XmlElement* pubsub_event) {
-  ASSERT(pubsub_event->Name() == QN_PUBSUB_EVENT);
-  for (const buzz::XmlChild* child = pubsub_event->FirstChild();
-       child != NULL;
-       child = child->NextChild()) {
-    const buzz::XmlElement* child_element = child->AsElement();
-    const buzz::QName& child_name(child_element->Name());
-    if (child_name == QN_PUBSUB_EVENT_ITEMS) {
-      HandlePubsubItems(child_element);
-    }
-  }
-}
-
-// Checks for a response to an pubsub IQ get like the following:
-//
-//  <iq from="muvc-private-chat-some-id@groupchat.google.com"
-//   to="john@site.com/gcomm582B14C9"
-//   type="result">
-//    <pubsub xmlns:"http://jabber.org/protocol/pubsub">
-//      <items node="node-name">
-//        <item id="some-id">
-//          <payload/>
-//        </item>
-//      </items>
-//    </event>
-//  </message>
-void PubsubTask::HandlePubsubIqGetResponse(
-    const buzz::XmlElement* pubsub_iq_response) {
-  ASSERT(pubsub_iq_response->Name() == QN_PUBSUB);
-  for (const buzz::XmlChild* child = pubsub_iq_response->FirstChild();
-       child != NULL;
-       child = child->NextChild()) {
-    const buzz::XmlElement* child_element = child->AsElement();
-    const buzz::QName& child_name(child_element->Name());
-    if (child_name == QN_PUBSUB_ITEMS) {
-      HandlePubsubItems(child_element);
-    }
-  }
-}
-
-// Calls registered handlers in response to pubsub event or response to
-// IQ pubsub get.
-// 'items' is the child of a pubsub#event:event node or pubsub:pubsub node.
-void PubsubTask::HandlePubsubItems(const buzz::XmlElement* items) {
-  ASSERT(items->HasAttr(QN_NODE));
-  const std::string& node_name(items->Attr(QN_NODE));
-  NodeSubscriptions::iterator iter = subscribed_nodes_.find(node_name);
-  if (iter != subscribed_nodes_.end()) {
-    NodeHandler handler = iter->second;
-    const buzz::XmlElement* item = items->FirstElement();
-    while (item != NULL) {
-      const buzz::QName& item_name(item->Name());
-      if (item_name != QN_PUBSUB_EVENT_ITEM &&
-          item_name != QN_PUBSUB_EVENT_RETRACT &&
-          item_name != QN_PUBSUB_ITEM) {
-        continue;
-      }
-
-      (this->*handler)(item);
-      item = item->NextElement();
-    }
-    return;
-  }
-}
-
-}