/*
* Copyright (c) 2010, 2011, 2012, 2013, 2016
* Jonathan Schleifer <js@heap.zone>
* Copyright (c) 2011, 2012, Florian Zeitz <florob@babelmonkeys.de>
*
* https://heap.zone/objxmpp/
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice is present in all copies.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#import <ObjFW/ObjFW.h>
#import "XMPPCallback.h"
#import "XMPPStorage.h"
@class XMPPConnection;
@class XMPPJID;
@class XMPPIQ;
@class XMPPMessage;
@class XMPPPresence;
@class XMPPAuthenticator;
@class SSLSocket;
@class XMPPMulticastDelegate;
/**
* \brief A protocol that should be (partially) implemented
* by delegates of a XMPPConnection
*/
@protocol XMPPConnectionDelegate
#ifndef XMPP_CONNECTION_M
<OFObject>
#endif
@optional
/**
* \brief This callback is called when the connection received an element.
*
* \param connection The connection that received the element
* \param element The element that was received
*/
- (void)connection: (XMPPConnection*)connection
didReceiveElement: (OFXMLElement*)element;
/**
* \brief This callback is called when the connection sent an element.
*
* \param connection The connection that sent the element
* \param element The element that was sent
*/
- (void)connection: (XMPPConnection*)connection
didSendElement: (OFXMLElement*)element;
/**
* \brief This callback is called when the connection sucessfully authenticated.
*
* \param connection The connection that was authenticated
*/
- (void)connectionWasAuthenticated: (XMPPConnection*)connection;
/**
* \brief This callback is called when the connection was bound to a JID.
*
* \param connection The connection that was bound to a JID
* \param JID The JID the conecction was bound to
*/
- (void)connection: (XMPPConnection*)connection
wasBoundToJID: (XMPPJID*)JID;
/**
* \brief This callback is called when the connection received an IQ stanza.
*
* \param connection The connection that received the stanza
* \param iq The IQ stanza that was received
*/
- (bool)connection: (XMPPConnection*)connection
didReceiveIQ: (XMPPIQ*)iq;
/**
* \brief This callback is called when the connection received a presence
* stanza.
*
* \param connection The connection that received the stanza
* \param presence The presence stanza that was received
*/
- (void)connection: (XMPPConnection*)connection
didReceivePresence: (XMPPPresence*)presence;
/**
* \brief This callback is called when the connection received a message stanza.
*
* \param connection The connection that received the stanza
* \param message The message stanza that was received
*/
- (void)connection: (XMPPConnection*)connection
didReceiveMessage: (XMPPMessage*)message;
/**
* \brief This callback is called when the connection was closed.
*
* \param connection The connection that was closed
*/
- (void)connectionWasClosed: (XMPPConnection*)connection;
/*!
* @brief This callback is called when the connection threw an exception.
*
* This is only called for connections on which
* @ref XMPPConnection::handleConnection has been called.
*
* @param connection The connection which threw an exception
* @param exception The exception the connection threw
*/
- (void)connection: (XMPPConnection*)connection
didThrowException: (OFException*)exception;
/**
* \brief This callback is called when the connection is about to upgrade to
* TLS.
*
* \param connection The connection that will upgraded to TLS
*/
- (void)connectionWillUpgradeToTLS: (XMPPConnection*)connection;
/**
* \brief This callback is called when the connection was upgraded to use TLS.
*
* \param connection The connection that was upgraded to TLS
*/
- (void)connectionDidUpgradeToTLS: (XMPPConnection*)connection;
@end
/**
* \brief A class which abstracts a connection to an XMPP service.
*/
@interface XMPPConnection: OFObject <OFXMLParserDelegate,
OFXMLElementBuilderDelegate>
{
id _socket;
OFXMLParser *_parser, *_oldParser;
OFXMLElementBuilder *_elementBuilder, *_oldElementBuilder;
OFString *_username, *_password, *_server, *_resource;
OFString *_privateKeyFile, *_certificateFile;
const char *_privateKeyPassphrase;
OFString *_domain, *_domainToASCII;
XMPPJID *_JID;
uint16_t _port;
id <XMPPStorage> _dataStorage;
OFString *_language;
XMPPMulticastDelegate *_delegates;
OFMutableDictionary *_callbacks;
XMPPAuthenticator *_authModule;
bool _streamOpen;
bool _needsSession;
bool _encryptionRequired, _encrypted;
bool _supportsRosterVersioning;
bool _supportsStreamManagement;
unsigned int _lastID;
}
/// \brief The username to use for authentication
@property (copy) OFString *username;
/// \brief The password to use for authentication
@property (copy) OFString *password;
/**
* \brief The server to use for the connection
*
* This is useful if the address of the server is different from the domain.
*/
@property (copy) OFString *server;
/// \brief The domain to connect to
@property (copy) OFString *domain;
/// \brief The resource to request for the connection
@property (copy) OFString *resource;
/// \brief The language to request for the connection
@property (copy) OFString *language;
/// \brief A private key file to use for authentication
@property (copy) OFString *privateKeyFile;
/// \brief A certificate file to use for authentication
@property (copy) OFString *certificateFile;
/// \brief The JID the server assigned to the connection after binding
@property (copy, readonly) XMPPJID *JID;
/// \brief The port to connect to
@property uint16_t port;
/// \brief An object for data storage, conforming to the XMPPStorage protocol
@property (assign) id <XMPPStorage> dataStorage;
/// \brief The socket used for the connection
@property (readonly, retain) OFTCPSocket *socket;
/// \brief Whether encryption is required
@property bool encryptionRequired;
/// \brief Whether the connection is encrypted
@property (readonly) bool encrypted;
/// \brief Whether roster versioning is supported
@property (readonly) bool supportsRosterVersioning;
/// \brief Whether stream management is supported
@property (readonly) bool supportsStreamManagement;
/**
* \brief Creates a new autoreleased XMPPConnection.
*
* \return A new autoreleased XMPPConnection
*/
+ (instancetype)connection;
/**
* \brief Adds the specified delegate.
*
* \param delegate The delegate to add
*/
- (void)addDelegate: (id <XMPPConnectionDelegate>)delegate;
/**
* \brief Removes the specified delegate.
*
* \param delegate The delegate to remove
*/
- (void)removeDelegate: (id <XMPPConnectionDelegate>)delegate;
/**
* \brief Connects to the XMPP service.
*/
- (void)connect;
/**
* \brief Closes the stream to the XMPP service
*/
- (void)close;
/**
* \brief Checks the certificate presented by the server and sets the specified
* pointer to the reason why the certificate is not valid
*
* \param reason A pointer to an OFString which is set to a reason in case the
* certificate is not valid (otherwise, it does not touch it).
* Passing NULL means the reason is not stored anywhere.
* \return Whether the certificate is valid
*/
- (bool)checkCertificateAndGetReason: (OFString**)reason;
/**
* \brief Adds the connection to the run loop.
*/
- (void)handleConnection;
/**
* \brief Asynchronously connects to the server and adds the connection to the
* run loop.
*/
- (void)asyncConnectAndHandle;
/**
* \brief Parses the specified buffer.
*
* This is useful for handling multiple connections at once.
*
* \param buffer The buffer to parse
* \param length The length of the buffer. If length is 0, it is assumed that
* the connection was closed.
*/
- (void)parseBuffer: (const void*)buffer
length: (size_t)length;
/**
* \brief Returns the socket used by the XMPPConnection.
*
* \return The socket used by the XMPPConnection
*/
- (OFTCPSocket*)socket;
/**
* \brief Returns whether encryption is encrypted.
*
* \return Whether encryption is encrypted
*/
- (bool)encryptionRequired;
/**
* \brief Sets whether encryption is required.
*
* \param required Whether encryption is required
*/
- (void)setEncryptionRequired: (bool)required;
/**
* \brief Returns whether the connection is encrypted.
*
* \return Whether the connection is encrypted
*/
- (bool)encrypted;
/**
* \brief Sends an OFXMLElement, usually an XMPPStanza.
*
* \param element The element to send
*/
- (void)sendStanza: (OFXMLElement*)element;
/*!
* @brief Sends an XMPPIQ, registering a callback method.
*
* @param IQ The IQ to send
* @param target The object that contains the callback method
* @param selector The selector of the callback method,
* must take exactly one parameter of type XMPPIQ*
*/
- (void)sendIQ: (XMPPIQ*)IQ
callbackTarget: (id)target
selector: (SEL)selector;
#ifdef OF_HAVE_BLOCKS
/*!
* @brief Sends an XMPPIQ, registering a callback block.
*
* @param IQ The IQ to send
* @param block The callback block
*/
- (void)sendIQ: (XMPPIQ*)IQ
callbackBlock: (xmpp_callback_block_t)block;
#endif
/**
* \brief Generates a new, unique stanza ID.
*
* \return A new, generated, unique stanza ID.
*/
- (OFString*)generateStanzaID;
- (void)setUsername: (OFString*)username;
- (OFString*)username;
- (void)setPassword: (OFString*)password;
- (OFString*)password;
- (void)setServer: (OFString*)server;
- (OFString*)server;
- (void)setDomain: (OFString*)domain;
- (OFString*)domain;
- (void)setResource: (OFString*)resource;
- (OFString*)resource;
- (XMPPJID*)JID;
- (void)setPort: (uint16_t)port;
- (uint16_t)port;
- (void)setDataStorage: (id <XMPPStorage>)dataStorage;
- (id <XMPPStorage>)dataStorage;
- (void)setLanguage: (OFString*)language;
- (OFString*)language;
- (bool)supportsRosterVersioning;
- (bool)supportsStreamManagement;
- (void)XMPP_startStream;
- (void)XMPP_handleStream: (OFXMLElement*)element;
- (void)XMPP_handleTLS: (OFXMLElement*)element;
- (void)XMPP_handleSASL: (OFXMLElement*)element;
- (void)XMPP_handleStanza: (OFXMLElement*)element;
- (void)XMPP_sendAuth: (OFString*)authName;
- (void)XMPP_sendResourceBind;
- (void)XMPP_sendStreamError: (OFString*)condition
text: (OFString*)text;
- (void)XMPP_handleIQ: (XMPPIQ*)iq;
- (void)XMPP_handleMessage: (XMPPMessage*)message;
- (void)XMPP_handlePresence: (XMPPPresence*)presence;
- (void)XMPP_handleFeatures: (OFXMLElement*)element;
- (void)XMPP_handleResourceBindForConnection: (XMPPConnection*)connection
IQ: (XMPPIQ*)iq;
- (void)XMPP_sendSession;
- (void)XMPP_handleSessionForConnection: (XMPPConnection*)connection
IQ: (XMPPIQ*)iq;
- (OFString*)XMPP_IDNAToASCII: (OFString*)domain;
- (XMPPMulticastDelegate*)XMPP_delegates;
@end
@interface OFObject (XMPPConnectionDelegate) <XMPPConnectionDelegate>
@end