637 lines
21 KiB
C
637 lines
21 KiB
C
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/*
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Copyright (c) 2004-2009 by Jakob Schroeter <js@camaya.net>
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This file is part of the gloox library. http://camaya.net/gloox
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This software is distributed under a license. The full license
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agreement can be found in the file LICENSE in this distribution.
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This software may not be copied, modified, sold or distributed
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other than expressed in the named license agreement.
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This software is distributed without any warranty.
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*/
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#ifndef DISCO_H__
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#define DISCO_H__
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#include "gloox.h"
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#include "iqhandler.h"
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#include "jid.h"
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#include <string>
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#include <list>
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#include <map>
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namespace gloox
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{
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class ClientBase;
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class DataForm;
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class DiscoHandler;
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class DiscoNodeHandler;
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class IQ;
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/**
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* @brief This class implements XEP-0030 (Service Discovery) and XEP-0092 (Software Version).
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*
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* ClientBase will automatically instantiate a Disco object. It can be used to
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* announce special features of your client, or its version, or...
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*
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* XEP version: 2.2
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* @author Jakob Schroeter <js@camaya.net>
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*/
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class GLOOX_API Disco : public IqHandler
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{
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friend class ClientBase;
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public:
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class Identity; // declared below class Info
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/**
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* A list of pointers to Identity objects. Used with Disco::Info.
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*/
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typedef std::list<Identity*> IdentityList;
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/**
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* @brief An abstraction of a Disco Info element (from Service Discovery, XEP-0030)
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* as a StanzaExtension.
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*
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* @author Jakob Schroeter <js@camaya.net>
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* @since 1.0
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*/
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class GLOOX_API Info : public StanzaExtension
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{
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friend class Disco;
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public:
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/**
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* Returns the queried node identifier, if any.
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* @return The node identifier. May be empty.
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*/
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const std::string& node() const { return m_node; }
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/**
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* Returns the entity's supported features.
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* @return A list of supported features/namespaces.
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*/
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const StringList& features() const { return m_features; }
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/**
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* Use this function to check if the entity the Info came from supports agiven feature.
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* @param feature The feature to check for.
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* @return @b True if the entity announces support for the feature, @b false otherwise.
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*/
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bool hasFeature( const std::string& feature ) const;
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/**
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* Returns the entity's identities.
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* @return A list of pointers to Identity objects.
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*/
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const IdentityList& identities() const { return m_identities; }
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/**
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* Returns an optionally included data form. This is used by e.g. MUC (XEP-0045).
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* @return An optional data form included in the disco#info. May be 0.
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*/
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const DataForm* form() const { return m_form; }
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/**
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* Adds an optional DataForm, e.g. for XEP-0232. Only one form can be added
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* at this point.
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* @param form An optional DataForm to include in the Info reply.
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* The form will be owned by and deleted on destruction of the Info object.
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* @note If called more than once the previously set form will be deleted.
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*/
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void setForm( DataForm* form );
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// reimplemented from StanzaExtension
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virtual const std::string& filterString() const;
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// reimplemented from StanzaExtension
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virtual StanzaExtension* newInstance( const Tag* tag ) const
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{
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return new Info( tag );
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}
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// reimplemented from StanzaExtension
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virtual StanzaExtension* clone() const
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{
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return new Info( *this );
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}
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// reimplemented from StanzaExtension
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virtual Tag* tag() const;
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private:
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#ifdef DISCO_INFO_TEST
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public:
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#endif
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/**
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* Creates a empty Info object, suitable for making disco#info requests.
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* @param node The node identifier to query (optional).
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* @param defaultFeatures Indicates whether or not the default features should be
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* included in the Info. Should be @b false for requests, @b true for replies.
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* Defaults to @b false.
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*/
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Info( const std::string& node = EmptyString, bool defaultFeatures = false );
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/**
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* Creates an Info object from the given Tag.
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* @param tag A <query> tag in the disco#info namespace, (possibly) containing
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* a disco#info reply.
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*/
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Info( const Tag* tag );
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/**
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* Copy constructor.
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* @param info An Info object to copy.
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*/
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Info( const Info& info );
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/**
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* Virtual destructor.
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*/
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virtual ~Info();
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/**
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* Sets the current info node.
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* @param node The info node.
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*/
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void setNode( const std::string& node ) { m_node = node; }
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/**
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* This function can be used to set the entity's features.
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* @param features A list of supported features/namespaces.
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*/
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void setFeatures( const StringList& features )
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{
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StringList fl( features );
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fl.sort(); // needed on win32
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m_features.merge( fl );
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}
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/**
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* This function can be used to set the entity's identities.
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* @param identities A list of pointers to the entity's identities.
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* @note The Identity objects pointed to will be owned by the Info object. The
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* list should neither be used again nor should the Identity objects be deleted.
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*/
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void setIdentities( const IdentityList& identities ) { m_identities = identities; }
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std::string m_node;
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StringList m_features;
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IdentityList m_identities;
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DataForm* m_form;
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};
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/**
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* @brief An abstraction of a Disco identity (Service Discovery, XEP-0030).
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*
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* @author Jakob Schroeter <js@camaya.net>
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* @since 1.0
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*/
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class GLOOX_API Identity
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{
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friend class Info;
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friend class Disco;
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public:
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/**
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* Constructs a Disco Identity from a category, type and name.
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* See http://www.xmpp.org/registrar/disco-categories.html for more info.
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* @param category The identity's category.
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* @param type The identity's type.
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* @param name The identity's name.
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*/
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Identity( const std::string& category,
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const std::string& type,
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const std::string& name );
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/**
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* Copy Contructor.
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* @param id An Identity to create a new Identity object from.
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*/
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Identity( const Identity& id );
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/**
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* Destructor.
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*/
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~Identity();
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/**
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* Returns the identity's category.
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* @return The identity's category.
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*/
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const std::string& category() const { return m_category; }
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/**
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* Returns the identity's type.
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* @return The identity's type.
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*/
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const std::string& type() const { return m_type; }
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/**
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* Returns the identity's name.
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* @return The identity's name.
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*/
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const std::string& name() const { return m_name; }
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/**
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* Creates and returns a Tag representation of this identity.
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* @return A Tag, or 0.
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*/
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Tag* tag() const;
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private:
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/**
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* Creates a Disco Identity from the given Tag.
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* @param tag A Tag representation of a disco identity.
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*/
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Identity( const Tag* tag );
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std::string m_category; /**< The identity's category. */
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std::string m_type; /**< The identity's type. */
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std::string m_name; /**< The identity's name. */
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};
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class Item; // declared below class Items
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/**
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* A list of pointers to Item objects. Used with Disco::Items.
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*/
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typedef std::list<Item*> ItemList;
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/**
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* @brief An abstraction of a Disco query element (from Service Discovery, XEP-0030)
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* in the disco#items namespace, implemented as a StanzaExtension.
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*
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* @author Jakob Schroeter <js@camaya.net>
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* @since 1.0
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*/
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class GLOOX_API Items : public StanzaExtension
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{
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friend class Disco;
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public:
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// This needs to be public so one can proactively send a list of adhoc commands
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// see XEP-0050
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/**
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* Creates an empty Items object, suitable for making disco#items requests.
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* @param node The node identifier to query (optional).
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*/
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Items( const std::string& node = EmptyString );
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/**
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* Virtual destructor.
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*/
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virtual ~Items();
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/**
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* This function can be used to set the entity's/node's items.
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* @param items A list of pointers to the entity's/node's items.
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* @note The Item objects pointed to will be owned by the Items object. The
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* list should neither be used again nor should the Item objects be deleted.
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*/
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void setItems( const ItemList& items );
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/**
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* Returns the queried node identifier, if any.
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* @return The node identifier. May be empty.
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*/
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const std::string& node() const { return m_node; }
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/**
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* Returns the entity's/node's items.
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* @return A list of pointers to Item objects.
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*/
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const ItemList& items() const { return m_items; }
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// reimplemented from StanzaExtension
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virtual const std::string& filterString() const;
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// reimplemented from StanzaExtension
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virtual StanzaExtension* newInstance( const Tag* tag ) const
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{
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return new Items( tag );
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}
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// reimplemented from StanzaExtension
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virtual Tag* tag() const;
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// reimplemented from StanzaExtension
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virtual StanzaExtension* clone() const
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{
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return new Items( *this );
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}
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private:
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#ifdef DISCO_ITEMS_TEST
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public:
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#endif
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/**
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* Creates an Items object from the given Tag.
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* @param tag A <query> tag in the disco#items namespace, (possibly) containing
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* a disco#items reply.
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*/
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Items( const Tag* tag );
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std::string m_node;
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ItemList m_items;
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};
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/**
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* @brief An abstraction of a Disco item (Service Discovery, XEP-0030).
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*
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* @author Jakob Schroeter <js@camaya.net>
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* @since 1.0
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*/
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class GLOOX_API Item
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{
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friend class Items;
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public:
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/**
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* Constructs a Disco Item from a JID, node and name.
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* @param jid The item's JID.
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* @param node The item's type.
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* @param name The item's name.
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*/
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Item( const JID& jid,
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const std::string& node,
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const std::string& name )
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: m_jid( jid ), m_node( node ), m_name( name ) {}
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/**
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* Destructor.
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*/
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~Item() {}
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/**
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* Returns the item's JID.
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* @return The item's JID.
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*/
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const JID& jid() const { return m_jid; }
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/**
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* Returns the item's node.
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* @return The item's node.
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*/
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const std::string& node() const { return m_node; }
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/**
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* Returns the item's name.
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* @return The item's name.
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*/
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const std::string& name() const { return m_name; }
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/**
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* Creates and returns a Tag representation of this item.
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* @return A Tag, or 0.
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*/
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Tag* tag() const;
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private:
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/**
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* Creates a Disco Item from the given Tag.
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* @param tag A Tag representation of a Disco item.
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*/
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Item( const Tag* tag );
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JID m_jid; /**< The item's jid. */
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std::string m_node; /**< The item's type. */
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std::string m_name; /**< The item's name. */
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};
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/**
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* Adds a feature to the list of supported Jabber features.
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* The list will be posted as an answer to IQ queries in the
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* "http://jabber.org/protocol/disco#info" namespace.
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* These IQ packets will also be forwarded to the
|
||
|
|
* application's IqHandler, if it listens to the @c disco\#info namespace.
|
||
|
|
* By default, disco(very) queries are handled by the library.
|
||
|
|
* By default, all supported, not disabled features are announced.
|
||
|
|
* @param feature A feature (namespace) the host app supports.
|
||
|
|
* @note Use this function for non-queryable features. For nodes that shall
|
||
|
|
* answer to @c disco\#info queries, use registerNodeHandler().
|
||
|
|
*/
|
||
|
|
void addFeature( const std::string& feature )
|
||
|
|
{ m_features.push_back( feature ); }
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Removes the given feature from the list of advertised client features.
|
||
|
|
* @param feature The feature to remove.
|
||
|
|
* @since 0.9
|
||
|
|
*/
|
||
|
|
void removeFeature( const std::string& feature )
|
||
|
|
{ m_features.remove( feature ); }
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Lets you retrieve the features this Disco instance supports.
|
||
|
|
* @param defaultFeatures Include default features. Defaults to @b false.
|
||
|
|
* @return A list of supported features/namespaces.
|
||
|
|
*/
|
||
|
|
const StringList features( bool defaultFeatures = false ) const;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Queries the given JID for general infomation according to
|
||
|
|
* XEP-0030 (Service Discovery).
|
||
|
|
* To receive the results inherit from DiscoHandler and register with the Disco object.
|
||
|
|
* @param to The destination-JID of the query.
|
||
|
|
* @param node An optional node to query. Not inserted if empty.
|
||
|
|
* @param dh The DiscoHandler to notify about results.
|
||
|
|
* @param context A context identifier.
|
||
|
|
* @param tid An optional id that is going to be used as the IQ request's id. Only
|
||
|
|
* necessary if you need to know the request's id.
|
||
|
|
*/
|
||
|
|
void getDiscoInfo( const JID& to, const std::string& node, DiscoHandler* dh, int context,
|
||
|
|
const std::string& tid = EmptyString )
|
||
|
|
{ getDisco( to, node, dh, context, GetDiscoInfo, tid ); }
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Queries the given JID for its items according to
|
||
|
|
* XEP-0030 (Service Discovery).
|
||
|
|
* To receive the results inherit from DiscoHandler and register with the Disco object.
|
||
|
|
* @param to The destination-JID of the query.
|
||
|
|
* @param node An optional node to query. Not inserted if empty.
|
||
|
|
* @param dh The DiscoHandler to notify about results.
|
||
|
|
* @param context A context identifier.
|
||
|
|
* @param tid An optional id that is going to be used as the IQ request's id. Only
|
||
|
|
* necessary if you need to know the request's id.
|
||
|
|
*/
|
||
|
|
void getDiscoItems( const JID& to, const std::string& node, DiscoHandler* dh, int context,
|
||
|
|
const std::string& tid = EmptyString )
|
||
|
|
{ getDisco( to, node, dh, context, GetDiscoItems, tid ); }
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the version of the host application using this library.
|
||
|
|
* The library takes care of jabber:iq:version requests. These
|
||
|
|
* IQ packets will not be forwarded to the IqHandlers.
|
||
|
|
* @param name The name to be returned to inquireing clients.
|
||
|
|
* @param version The version to be returned to inquireing clients.
|
||
|
|
* @param os The operating system to announce. Default: don't include.
|
||
|
|
*/
|
||
|
|
void setVersion( const std::string& name, const std::string& version,
|
||
|
|
const std::string& os = EmptyString );
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the application's advertised name.
|
||
|
|
* @return The application's advertised name.
|
||
|
|
*/
|
||
|
|
const std::string& name() const { return m_versionName; }
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the application's advertised version.
|
||
|
|
* @return The application's advertised version.
|
||
|
|
*/
|
||
|
|
const std::string& version() const { return m_versionVersion; }
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the application's advertised operating system.
|
||
|
|
* @return The application's advertised operating system.
|
||
|
|
*/
|
||
|
|
const std::string& os() const { return m_versionOs; }
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the identity of this entity.
|
||
|
|
* The library uses this information to answer disco#info requests
|
||
|
|
* with a correct identity.
|
||
|
|
* XEP-0030 requires an entity to have at least one identity. See XEP-0030
|
||
|
|
* for more information on categories and types.
|
||
|
|
* @param category The entity category of this client. Default: client.
|
||
|
|
* @param type The type of this entity. Default: bot.
|
||
|
|
* @param name The name of the entity. Default: empty.
|
||
|
|
* @note An entity can have more than one identity. You cann add more identities
|
||
|
|
* using addIdentity(). A call to setIdentity() will clear the list of identities
|
||
|
|
* and, after that, add the new identity given by the arguments to setIdentity().
|
||
|
|
*/
|
||
|
|
void setIdentity( const std::string& category, const std::string& type,
|
||
|
|
const std::string& name = EmptyString );
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Adds another identity to the list of identities.
|
||
|
|
* @param category The entity category of this client. Default: client.
|
||
|
|
* @param type The type of this entity. Default: bot.
|
||
|
|
* @param name The name of the entity. Default: empty.
|
||
|
|
*/
|
||
|
|
void addIdentity( const std::string& category, const std::string& type,
|
||
|
|
const std::string& name = EmptyString )
|
||
|
|
{ m_identities.push_back( new Identity( category, type, name ) ); }
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the entity's identities.
|
||
|
|
* @return The entity's identities.
|
||
|
|
*/
|
||
|
|
const IdentityList& identities() const { return m_identities; }
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Adds an optional DataForm to Disco:Info replies, e.g. for XEP-0232.
|
||
|
|
* Only one form can be added at this point.
|
||
|
|
* @param form An optional DataForm to include in the Info reply.
|
||
|
|
* The form will be owned by and deleted on destruction of the Disco object.
|
||
|
|
* @note If called more than once the previously set form will be deleted.
|
||
|
|
*/
|
||
|
|
void setForm( DataForm* form );
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the DataForm set by setForm(). Used by Capabilities.
|
||
|
|
* @return The DataForm, or 0.
|
||
|
|
*/
|
||
|
|
const DataForm* form() const { return m_form; }
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Use this function to register an @ref DiscoHandler with the Disco
|
||
|
|
* object. This is only necessary if you want to receive Disco-set requests. Else
|
||
|
|
* a one-time registration happens when calling getDiscoInfo() and getDiscoItems(), respectively.
|
||
|
|
* @param dh The DiscoHandler-derived object to register.
|
||
|
|
*/
|
||
|
|
void registerDiscoHandler( DiscoHandler* dh )
|
||
|
|
{ m_discoHandlers.push_back( dh ); }
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Unregisters the given DiscoHandler.
|
||
|
|
* @param dh The DiscoHandler to unregister.
|
||
|
|
*/
|
||
|
|
void removeDiscoHandler( DiscoHandler* dh );
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Use this function to register a @ref DiscoNodeHandler with the Disco
|
||
|
|
* object. The DiscoNodeHandler will receive disco#items queries which are
|
||
|
|
* directed to the corresponding node registered for the handler.
|
||
|
|
* @param nh The NodeHandler-derived object to register.
|
||
|
|
* @param node The node name to associate with this handler. Use an empty string to
|
||
|
|
* register for the root node.
|
||
|
|
*/
|
||
|
|
void registerNodeHandler( DiscoNodeHandler* nh, const std::string& node );
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Removes the node handler for the given node.
|
||
|
|
* @param nh The NodeHandler to unregister.
|
||
|
|
* @param node The node for which the handler shall be removed. Use an empty string to
|
||
|
|
* remove the root node's handler.
|
||
|
|
*/
|
||
|
|
void removeNodeHandler( DiscoNodeHandler* nh, const std::string& node );
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Removes all registered nodes of the given node handler.
|
||
|
|
* @param nh The NodeHandler to unregister.
|
||
|
|
*/
|
||
|
|
void removeNodeHandlers( DiscoNodeHandler* nh );
|
||
|
|
|
||
|
|
// reimplemented from IqHandler.
|
||
|
|
virtual bool handleIq( const IQ& iq );
|
||
|
|
|
||
|
|
// reimplemented from IqHandler.
|
||
|
|
virtual void handleIqID( const IQ& iq, int context );
|
||
|
|
|
||
|
|
private:
|
||
|
|
#ifdef DISCO_TEST
|
||
|
|
public:
|
||
|
|
#endif
|
||
|
|
Disco( ClientBase* parent );
|
||
|
|
virtual ~Disco();
|
||
|
|
|
||
|
|
enum IdType
|
||
|
|
{
|
||
|
|
GetDiscoInfo,
|
||
|
|
GetDiscoItems
|
||
|
|
};
|
||
|
|
|
||
|
|
void getDisco( const JID& to, const std::string& node, DiscoHandler* dh,
|
||
|
|
int context, IdType idType, const std::string& tid );
|
||
|
|
|
||
|
|
struct DiscoHandlerContext
|
||
|
|
{
|
||
|
|
DiscoHandler* dh;
|
||
|
|
int context;
|
||
|
|
};
|
||
|
|
|
||
|
|
ClientBase* m_parent;
|
||
|
|
|
||
|
|
typedef std::list<DiscoHandler*> DiscoHandlerList;
|
||
|
|
typedef std::list<DiscoNodeHandler*> DiscoNodeHandlerList;
|
||
|
|
typedef std::map<std::string, DiscoNodeHandlerList> DiscoNodeHandlerMap;
|
||
|
|
typedef std::map<std::string, DiscoHandlerContext> DiscoHandlerMap;
|
||
|
|
|
||
|
|
DiscoHandlerList m_discoHandlers;
|
||
|
|
DiscoNodeHandlerMap m_nodeHandlers;
|
||
|
|
DiscoHandlerMap m_track;
|
||
|
|
IdentityList m_identities;
|
||
|
|
StringList m_features;
|
||
|
|
StringMap m_queryIDs;
|
||
|
|
DataForm* m_form;
|
||
|
|
|
||
|
|
std::string m_versionName;
|
||
|
|
std::string m_versionVersion;
|
||
|
|
std::string m_versionOs;
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif // DISCO_H__
|