git-svn-id: http://webrtc.googlecode.com/svn/trunk@7160 4adac7df-926f-26a2-2b94-8c16560cd09d
		
			
				
	
	
		
			303 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			303 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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 * libjingle
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 * Copyright 2004--2005, Google Inc.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions are met:
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 *
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 *  1. Redistributions of source code must retain the above copyright notice,
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 *     this list of conditions and the following disclaimer.
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 *  2. Redistributions in binary form must reproduce the above copyright notice,
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 *     this list of conditions and the following disclaimer in the documentation
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 *     and/or other materials provided with the distribution.
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 *  3. The name of the author may not be used to endorse or promote products
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 *     derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#ifndef TALK_XMPP_XMPPTHREAD_H_
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#define TALK_XMPP_XMPPTHREAD_H_
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#include "talk/xmpp/moduleimpl.h"
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#include "talk/xmpp/rostermodule.h"
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namespace buzz {
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//! Presence Information
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//! This class stores both presence information for outgoing presence and is
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//! returned by methods in XmppRosterModule to represent received incoming
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//! presence information.  When this class is writeable (non-const) then each
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//! update to any property will set the inner xml.  Setting the raw_xml will
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//! rederive all of the other properties.
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class XmppPresenceImpl : public XmppPresence {
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public:
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  virtual ~XmppPresenceImpl() {}
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  //! The from Jid of for the presence information.
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  //! Typically this will be a full Jid with resource specified.  For outgoing
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  //! presence this should remain JID_NULL and will be scrubbed from the
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  //! stanza when being sent.
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  virtual const Jid jid() const;
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  //! Is the contact available?
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  virtual XmppPresenceAvailable available() const;
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  //! Sets if the user is available or not
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  virtual XmppReturnStatus set_available(XmppPresenceAvailable available);
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  //! The show value of the presence info
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  virtual XmppPresenceShow presence_show() const;
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  //! Set the presence show value
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  virtual XmppReturnStatus set_presence_show(XmppPresenceShow show);
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  //! The Priority of the presence info
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  virtual int priority() const;
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  //! Set the priority of the presence
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  virtual XmppReturnStatus set_priority(int priority);
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  //! The plain text status of the presence info.
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  //! If there are multiple status because of language, this will either be a
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  //! status that is not tagged for language or the first available
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  virtual const std::string status() const;
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  //! Sets the status for the presence info.
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  //! If there is more than one status present already then this will remove
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  //! them all and replace it with one status element we no specified language
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  virtual XmppReturnStatus set_status(const std::string& status);
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  //! The connection status
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  virtual XmppPresenceConnectionStatus connection_status() const;
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  //! The focus obfuscated GAIA id
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  virtual const std::string google_user_id() const;
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  //! The nickname in the presence
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  virtual const std::string nickname() const;
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  //! The raw xml of the presence update
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  virtual const XmlElement* raw_xml() const;
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  //! Sets the raw presence stanza for the presence update
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  //! This will cause all other data items in this structure to be rederived
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  virtual XmppReturnStatus set_raw_xml(const XmlElement * xml);
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private:
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  XmppPresenceImpl();
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  friend class XmppPresence;
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  friend class XmppRosterModuleImpl;
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  void CreateRawXmlSkeleton();
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  // Store everything in the XML element. If this becomes a perf issue we can
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  // cache the data.
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  rtc::scoped_ptr<XmlElement> raw_xml_;
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};
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//! A contact as given by the server
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class XmppRosterContactImpl : public XmppRosterContact {
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public:
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  virtual ~XmppRosterContactImpl() {}
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  //! The jid for the contact.
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  //! Typically this will be a bare Jid.
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  virtual const Jid jid() const;
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  //! Sets the jid for the roster contact update
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  virtual XmppReturnStatus set_jid(const Jid& jid);
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  //! The name (nickname) stored for this contact
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  virtual const std::string name() const;
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  //! Sets the name
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  virtual XmppReturnStatus set_name(const std::string& name);
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  //! The Presence subscription state stored on the server for this contact
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  //! This is never settable and will be ignored when generating a roster
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  //! add/update request
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  virtual XmppSubscriptionState subscription_state() const;
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  //! The number of Groups applied to this contact
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  virtual size_t GetGroupCount() const;
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  //! Gets a Group applied to the contact based on index.
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  virtual const std::string GetGroup(size_t index) const;
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  //! Adds a group to this contact.
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  //! This will return a no error if the group is already present.
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  virtual XmppReturnStatus AddGroup(const std::string& group);
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  //! Removes a group from the contact.
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  //! This will return no error if the group isn't there
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  virtual XmppReturnStatus RemoveGroup(const std::string& group);
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  //! The raw xml for this roster contact
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  virtual const XmlElement* raw_xml() const;
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  //! Sets the raw presence stanza for the presence update
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  //! This will cause all other data items in this structure to be rederived
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  virtual XmppReturnStatus set_raw_xml(const XmlElement * xml);
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private:
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  XmppRosterContactImpl();
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  void CreateRawXmlSkeleton();
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  void SetXmlFromWire(const XmlElement * xml);
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  void ResetGroupCache();
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  bool FindGroup(const std::string& group,
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                 XmlElement** element,
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                 XmlChild** child_before);
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  friend class XmppRosterContact;
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  friend class XmppRosterModuleImpl;
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  int group_count_;
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  int group_index_returned_;
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  XmlElement * group_returned_;
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  rtc::scoped_ptr<XmlElement> raw_xml_;
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};
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//! An XmppModule for handle roster and presence functionality
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class XmppRosterModuleImpl : public XmppModuleImpl,
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  public XmppRosterModule, public XmppIqHandler {
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public:
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  virtual ~XmppRosterModuleImpl();
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  IMPLEMENT_XMPPMODULE
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  //! Sets the roster handler (callbacks) for the module
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  virtual XmppReturnStatus set_roster_handler(XmppRosterHandler * handler);
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  //! Gets the roster handler for the module
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  virtual XmppRosterHandler* roster_handler();
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  // USER PRESENCE STATE -------------------------------------------------------
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  //! Gets the aggregate outgoing presence
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  //! This object is non-const and be edited directly.  No update is sent
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  //! to the server until a Broadcast is sent
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  virtual XmppPresence* outgoing_presence();
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  //! Broadcasts that the user is available.
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  //! Nothing with respect to presence is sent until this is called.
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  virtual XmppReturnStatus BroadcastPresence();
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  //! Sends a directed presence to a Jid
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  //! Note that the client doesn't store where directed presence notifications
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  //! have been sent.  The server can keep the appropriate state
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  virtual XmppReturnStatus SendDirectedPresence(const XmppPresence* presence,
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                                                const Jid& to_jid);
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  // INCOMING PRESENCE STATUS --------------------------------------------------
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  //! Returns the number of incoming presence data recorded
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  virtual size_t GetIncomingPresenceCount();
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  //! Returns an incoming presence datum based on index
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  virtual const XmppPresence* GetIncomingPresence(size_t index);
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  //! Gets the number of presence data for a bare Jid
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  //! There may be a datum per resource
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  virtual size_t GetIncomingPresenceForJidCount(const Jid& jid);
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  //! Returns a single presence data for a Jid based on index
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  virtual const XmppPresence* GetIncomingPresenceForJid(const Jid& jid,
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                                                        size_t index);
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  // ROSTER MANAGEMENT ---------------------------------------------------------
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  //! Requests an update of the roster from the server
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  //! This must be called to initialize the client side cache of the roster
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  //! After this is sent the server should keep this module apprised of any
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  //! changes.
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  virtual XmppReturnStatus RequestRosterUpdate();
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  //! Returns the number of contacts in the roster
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  virtual size_t GetRosterContactCount();
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  //! Returns a contact by index
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  virtual const XmppRosterContact* GetRosterContact(size_t index);
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  //! Finds a contact by Jid
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  virtual const XmppRosterContact* FindRosterContact(const Jid& jid);
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  //! Send a request to the server to add a contact
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  //! Note that the contact won't show up in the roster until the server can
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  //! respond.  This happens async when the socket is being serviced
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  virtual XmppReturnStatus RequestRosterChange(
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    const XmppRosterContact* contact);
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  //! Request that the server remove a contact
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  //! The jabber protocol specifies that the server should also cancel any
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  //! subscriptions when this is done.  Like adding, this contact won't be
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  //! removed until the server responds.
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  virtual XmppReturnStatus RequestRosterRemove(const Jid& jid);
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  // SUBSCRIPTION MANAGEMENT ---------------------------------------------------
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  //! Request a subscription to presence notifications form a Jid
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  virtual XmppReturnStatus RequestSubscription(const Jid& jid);
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  //! Cancel a subscription to presence notifications from a Jid
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  virtual XmppReturnStatus CancelSubscription(const Jid& jid);
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  //! Approve a request to deliver presence notifications to a jid
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  virtual XmppReturnStatus ApproveSubscriber(const Jid& jid);
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  //! Deny or cancel presence notification deliver to a jid
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  virtual XmppReturnStatus CancelSubscriber(const Jid& jid);
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  // XmppIqHandler IMPLEMENTATION ----------------------------------------------
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  virtual void IqResponse(XmppIqCookie cookie, const XmlElement * stanza);
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protected:
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  // XmppModuleImpl OVERRIDES --------------------------------------------------
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  virtual bool HandleStanza(const XmlElement *);
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  // PRIVATE DATA --------------------------------------------------------------
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private:
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  friend class XmppRosterModule;
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  XmppRosterModuleImpl();
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  // Helper functions
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  void DeleteIncomingPresence();
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  void DeleteContacts();
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  XmppReturnStatus SendSubscriptionRequest(const Jid& jid,
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                                           const std::string& type);
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  void InternalSubscriptionRequest(const Jid& jid, const XmlElement* stanza,
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                                   XmppSubscriptionRequestType request_type);
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  void InternalIncomingPresence(const Jid& jid, const XmlElement* stanza);
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  void InternalIncomingPresenceError(const Jid& jid, const XmlElement* stanza);
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  void InternalRosterItems(const XmlElement* stanza);
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  // Member data
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  XmppPresenceImpl outgoing_presence_;
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  XmppRosterHandler* roster_handler_;
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  typedef std::vector<XmppPresenceImpl*> PresenceVector;
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  typedef std::map<Jid, PresenceVector*> JidPresenceVectorMap;
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  rtc::scoped_ptr<JidPresenceVectorMap> incoming_presence_map_;
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  rtc::scoped_ptr<PresenceVector> incoming_presence_vector_;
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  typedef std::vector<XmppRosterContactImpl*> ContactVector;
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  rtc::scoped_ptr<ContactVector> contacts_;
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};
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}
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#endif  // TALK_XMPP_XMPPTHREAD_H_
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