ObjXMPP  Diff

@class XMPPIQ;
@class XMPPMessage;
@class XMPPPresence;
@class XMPPAuthenticator;
@class SSLSocket;
@class XMPPMulticastDelegate;

/**
 * \brief A protocol that should be (partially) implemented by delegates of a
 *	  @ref XMPPConnection
 */
@protocol XMPPConnectionDelegate
@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;

	bool _needsSession;
	bool _encryptionRequired, _encrypted;
	bool _supportsRosterVersioning;
	bool _supportsStreamManagement;
	unsigned int _lastID;
}


/// \brief The username to use for authentication

@property OF_NULLABLE_PROPERTY (nonatomic, copy) OFString *username;


/// \brief The password to use for authentication

@property OF_NULLABLE_PROPERTY (nonatomic, 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 OF_NULLABLE_PROPERTY (nonatomic, copy) OFString *server;


/// \brief The domain to connect to

@property OF_NULLABLE_PROPERTY (nonatomic, copy) OFString *domain;


/// \brief The resource to request for the connection

@property OF_NULLABLE_PROPERTY (nonatomic, copy) OFString *resource;


/// \brief The language to request for the connection

@property OF_NULLABLE_PROPERTY (nonatomic, copy) OFString *language;


/// \brief A private key file to use for authentication

@property OF_NULLABLE_PROPERTY (nonatomic, copy) OFString *privateKeyFile;


/// \brief A certificate file to use for authentication

@property OF_NULLABLE_PROPERTY (nonatomic, copy) OFString *certificateFile;


/// \brief The JID the server assigned to the connection after binding

@property (readonly, nonatomic) XMPPJID *JID;


/// \brief The port to connect to

@property uint16_t port;


/// \brief An object for data storage, conforming to the XMPPStorage protocol

@property OF_NULLABLE_PROPERTY (assign) id <XMPPStorage> dataStorage;


/// \brief The socket used for the connection

@property (readonly, nonatomic) 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 *__autoreleasing _Nonnull *_Nullable)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 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 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;
@end

OF_ASSUME_NONNULL_END