diff options
| author | Teddy Wing | 2012-09-29 17:33:05 -0400 |
|---|---|---|
| committer | Teddy Wing | 2012-09-29 17:33:05 -0400 |
| commit | d14fe86d8c411ad41635a4736c2c736027f6b19b (patch) | |
| tree | ee6517a2d2cd22bdd0a067b437a8589a05cfe58c /Vendor/UnittWebSocketClient/include/AsyncSocket.h | |
| parent | aaa15ec5beeb3df296b7b0fa6d693f04fd52170b (diff) | |
| download | babblr-iOS-d14fe86d8c411ad41635a4736c2c736027f6b19b.tar.bz2 | |
Got pushing/sending to websockets working. Think I got receiving working too but not sure just yet.
Diffstat (limited to 'Vendor/UnittWebSocketClient/include/AsyncSocket.h')
| -rw-r--r-- | Vendor/UnittWebSocketClient/include/AsyncSocket.h | 659 |
1 files changed, 659 insertions, 0 deletions
diff --git a/Vendor/UnittWebSocketClient/include/AsyncSocket.h b/Vendor/UnittWebSocketClient/include/AsyncSocket.h new file mode 100644 index 0000000..33c1a7f --- /dev/null +++ b/Vendor/UnittWebSocketClient/include/AsyncSocket.h @@ -0,0 +1,659 @@ +// +// AsyncSocket.h +// +// This class is in the public domain. +// Originally created by Dustin Voss on Wed Jan 29 2003. +// Updated and maintained by Deusty Designs and the Mac development community. +// +// http://code.google.com/p/cocoaasyncsocket/ +// + +#import <Foundation/Foundation.h> + +@class AsyncSocket; +@class AsyncReadPacket; +@class AsyncWritePacket; + +extern NSString *const AsyncSocketException; +extern NSString *const AsyncSocketErrorDomain; + +enum AsyncSocketError +{ + AsyncSocketCFSocketError = kCFSocketError, // From CFSocketError enum. + AsyncSocketNoError = 0, // Never used. + AsyncSocketCanceledError, // onSocketWillConnect: returned NO. + AsyncSocketConnectTimeoutError, + AsyncSocketReadMaxedOutError, // Reached set maxLength without completing + AsyncSocketReadTimeoutError, + AsyncSocketWriteTimeoutError +}; +typedef enum AsyncSocketError AsyncSocketError; + +@protocol AsyncSocketDelegate +@optional + +/** + * In the event of an error, the socket is closed. + * You may call "unreadData" during this call-back to get the last bit of data off the socket. + * When connecting, this delegate method may be called + * before"onSocket:didAcceptNewSocket:" or "onSocket:didConnectToHost:". +**/ +- (void)onSocket:(AsyncSocket *)sock willDisconnectWithError:(NSError *)err; + +/** + * Called when a socket disconnects with or without error. If you want to release a socket after it disconnects, + * do so here. It is not safe to do that during "onSocket:willDisconnectWithError:". + * + * If you call the disconnect method, and the socket wasn't already disconnected, + * this delegate method will be called before the disconnect method returns. +**/ +- (void)onSocketDidDisconnect:(AsyncSocket *)sock; + +/** + * Called when a socket accepts a connection. Another socket is spawned to handle it. The new socket will have + * the same delegate and will call "onSocket:didConnectToHost:port:". +**/ +- (void)onSocket:(AsyncSocket *)sock didAcceptNewSocket:(AsyncSocket *)newSocket; + +/** + * Called when a new socket is spawned to handle a connection. This method should return the run-loop of the + * thread on which the new socket and its delegate should operate. If omitted, [NSRunLoop currentRunLoop] is used. +**/ +- (NSRunLoop *)onSocket:(AsyncSocket *)sock wantsRunLoopForNewSocket:(AsyncSocket *)newSocket; + +/** + * Called when a socket is about to connect. This method should return YES to continue, or NO to abort. + * If aborted, will result in AsyncSocketCanceledError. + * + * If the connectToHost:onPort:error: method was called, the delegate will be able to access and configure the + * CFReadStream and CFWriteStream as desired prior to connection. + * + * If the connectToAddress:error: method was called, the delegate will be able to access and configure the + * CFSocket and CFSocketNativeHandle (BSD socket) as desired prior to connection. You will be able to access and + * configure the CFReadStream and CFWriteStream in the onSocket:didConnectToHost:port: method. +**/ +- (BOOL)onSocketWillConnect:(AsyncSocket *)sock; + +/** + * Called when a socket connects and is ready for reading and writing. + * The host parameter will be an IP address, not a DNS name. +**/ +- (void)onSocket:(AsyncSocket *)sock didConnectToHost:(NSString *)host port:(UInt16)port; + +/** + * Called when a socket has completed reading the requested data into memory. + * Not called if there is an error. +**/ +- (void)onSocket:(AsyncSocket *)sock didReadData:(NSData *)data withTag:(long)tag; + +/** + * Called when a socket has read in data, but has not yet completed the read. + * This would occur if using readToData: or readToLength: methods. + * It may be used to for things such as updating progress bars. +**/ +- (void)onSocket:(AsyncSocket *)sock didReadPartialDataOfLength:(NSUInteger)partialLength tag:(long)tag; + +/** + * Called when a socket has completed writing the requested data. Not called if there is an error. +**/ +- (void)onSocket:(AsyncSocket *)sock didWriteDataWithTag:(long)tag; + +/** + * Called when a socket has written some data, but has not yet completed the entire write. + * It may be used to for things such as updating progress bars. +**/ +- (void)onSocket:(AsyncSocket *)sock didWritePartialDataOfLength:(NSUInteger)partialLength tag:(long)tag; + +/** + * Called if a read operation has reached its timeout without completing. + * This method allows you to optionally extend the timeout. + * If you return a positive time interval (> 0) the read's timeout will be extended by the given amount. + * If you don't implement this method, or return a non-positive time interval (<= 0) the read will timeout as usual. + * + * The elapsed parameter is the sum of the original timeout, plus any additions previously added via this method. + * The length parameter is the number of bytes that have been read so far for the read operation. + * + * Note that this method may be called multiple times for a single read if you return positive numbers. +**/ +- (NSTimeInterval)onSocket:(AsyncSocket *)sock + shouldTimeoutReadWithTag:(long)tag + elapsed:(NSTimeInterval)elapsed + bytesDone:(NSUInteger)length; + +/** + * Called if a write operation has reached its timeout without completing. + * This method allows you to optionally extend the timeout. + * If you return a positive time interval (> 0) the write's timeout will be extended by the given amount. + * If you don't implement this method, or return a non-positive time interval (<= 0) the write will timeout as usual. + * + * The elapsed parameter is the sum of the original timeout, plus any additions previously added via this method. + * The length parameter is the number of bytes that have been written so far for the write operation. + * + * Note that this method may be called multiple times for a single write if you return positive numbers. +**/ +- (NSTimeInterval)onSocket:(AsyncSocket *)sock + shouldTimeoutWriteWithTag:(long)tag + elapsed:(NSTimeInterval)elapsed + bytesDone:(NSUInteger)length; + +/** + * Called after the socket has successfully completed SSL/TLS negotiation. + * This method is not called unless you use the provided startTLS method. + * + * If a SSL/TLS negotiation fails (invalid certificate, etc) then the socket will immediately close, + * and the onSocket:willDisconnectWithError: delegate method will be called with the specific SSL error code. +**/ +- (void)onSocketDidSecure:(AsyncSocket *)sock; + +@end + +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +#pragma mark - +//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// + +@interface AsyncSocket : NSObject +{ + CFSocketNativeHandle theNativeSocket4; + CFSocketNativeHandle theNativeSocket6; + + CFSocketRef theSocket4; // IPv4 accept or connect socket + CFSocketRef theSocket6; // IPv6 accept or connect socket + + CFReadStreamRef theReadStream; + CFWriteStreamRef theWriteStream; + + CFRunLoopSourceRef theSource4; // For theSocket4 + CFRunLoopSourceRef theSource6; // For theSocket6 + CFRunLoopRef theRunLoop; + CFSocketContext theContext; + NSArray *theRunLoopModes; + + NSTimer *theConnectTimer; + + NSMutableArray *theReadQueue; + AsyncReadPacket *theCurrentRead; + NSTimer *theReadTimer; + NSMutableData *partialReadBuffer; + + NSMutableArray *theWriteQueue; + AsyncWritePacket *theCurrentWrite; + NSTimer *theWriteTimer; + + id theDelegate; + UInt16 theFlags; + + long theUserData; +} + +- (id)init; +- (id)initWithDelegate:(id)delegate; +- (id)initWithDelegate:(id)delegate userData:(long)userData; + +/* String representation is long but has no "\n". */ +- (NSString *)description; + +/** + * Use "canSafelySetDelegate" to see if there is any pending business (reads and writes) with the current delegate + * before changing it. It is, of course, safe to change the delegate before connecting or accepting connections. +**/ +- (id)delegate; +- (BOOL)canSafelySetDelegate; +- (void)setDelegate:(id)delegate; + +/* User data can be a long, or an id or void * cast to a long. */ +- (long)userData; +- (void)setUserData:(long)userData; + +/* Don't use these to read or write. And don't close them either! */ +- (CFSocketRef)getCFSocket; +- (CFReadStreamRef)getCFReadStream; +- (CFWriteStreamRef)getCFWriteStream; + +// Once one of the accept or connect methods are called, the AsyncSocket instance is locked in +// and the other accept/connect methods can't be called without disconnecting the socket first. +// If the attempt fails or times out, these methods either return NO or +// call "onSocket:willDisconnectWithError:" and "onSockedDidDisconnect:". + +// When an incoming connection is accepted, AsyncSocket invokes several delegate methods. +// These methods are (in chronological order): +// 1. onSocket:didAcceptNewSocket: +// 2. onSocket:wantsRunLoopForNewSocket: +// 3. onSocketWillConnect: +// +// Your server code will need to retain the accepted socket (if you want to accept it). +// The best place to do this is probably in the onSocket:didAcceptNewSocket: method. +// +// After the read and write streams have been setup for the newly accepted socket, +// the onSocket:didConnectToHost:port: method will be called on the proper run loop. +// +// Multithreading Note: If you're going to be moving the newly accepted socket to another run +// loop by implementing onSocket:wantsRunLoopForNewSocket:, then you should wait until the +// onSocket:didConnectToHost:port: method before calling read, write, or startTLS methods. +// Otherwise read/write events are scheduled on the incorrect runloop, and chaos may ensue. + +/** + * Tells the socket to begin listening and accepting connections on the given port. + * When a connection comes in, the AsyncSocket instance will call the various delegate methods (see above). + * The socket will listen on all available interfaces (e.g. wifi, ethernet, etc) +**/ +- (BOOL)acceptOnPort:(UInt16)port error:(NSError **)errPtr; + +/** + * This method is the same as acceptOnPort:error: with the additional option + * of specifying which interface to listen on. So, for example, if you were writing code for a server that + * has multiple IP addresses, you could specify which address you wanted to listen on. Or you could use it + * to specify that the socket should only accept connections over ethernet, and not other interfaces such as wifi. + * You may also use the special strings "localhost" or "loopback" to specify that + * the socket only accept connections from the local machine. + * + * To accept connections on any interface pass nil, or simply use the acceptOnPort:error: method. +**/ +- (BOOL)acceptOnInterface:(NSString *)interface port:(UInt16)port error:(NSError **)errPtr; + +/** + * Connects to the given host and port. + * The host may be a domain name (e.g. "deusty.com") or an IP address string (e.g. "192.168.0.2") +**/ +- (BOOL)connectToHost:(NSString *)hostname onPort:(UInt16)port error:(NSError **)errPtr; + +/** + * This method is the same as connectToHost:onPort:error: with an additional timeout option. + * To not time out use a negative time interval, or simply use the connectToHost:onPort:error: method. +**/ +- (BOOL)connectToHost:(NSString *)hostname + onPort:(UInt16)port + withTimeout:(NSTimeInterval)timeout + error:(NSError **)errPtr; + +/** + * Connects to the given address, specified as a sockaddr structure wrapped in a NSData object. + * For example, a NSData object returned from NSNetService's addresses method. + * + * If you have an existing struct sockaddr you can convert it to a NSData object like so: + * struct sockaddr sa -> NSData *dsa = [NSData dataWithBytes:&remoteAddr length:remoteAddr.sa_len]; + * struct sockaddr *sa -> NSData *dsa = [NSData dataWithBytes:remoteAddr length:remoteAddr->sa_len]; +**/ +- (BOOL)connectToAddress:(NSData *)remoteAddr error:(NSError **)errPtr; + +/** + * This method is the same as connectToAddress:error: with an additional timeout option. + * To not time out use a negative time interval, or simply use the connectToAddress:error: method. +**/ +- (BOOL)connectToAddress:(NSData *)remoteAddr withTimeout:(NSTimeInterval)timeout error:(NSError **)errPtr; + +- (BOOL)connectToAddress:(NSData *)remoteAddr + viaInterfaceAddress:(NSData *)interfaceAddr + withTimeout:(NSTimeInterval)timeout + error:(NSError **)errPtr; + +/** + * Disconnects immediately. Any pending reads or writes are dropped. + * If the socket is not already disconnected, the onSocketDidDisconnect delegate method + * will be called immediately, before this method returns. + * + * Please note the recommended way of releasing an AsyncSocket instance (e.g. in a dealloc method) + * [asyncSocket setDelegate:nil]; + * [asyncSocket disconnect]; + * [asyncSocket release]; +**/ +- (void)disconnect; + +/** + * Disconnects after all pending reads have completed. + * After calling this, the read and write methods will do nothing. + * The socket will disconnect even if there are still pending writes. +**/ +- (void)disconnectAfterReading; + +/** + * Disconnects after all pending writes have completed. + * After calling this, the read and write methods will do nothing. + * The socket will disconnect even if there are still pending reads. +**/ +- (void)disconnectAfterWriting; + +/** + * Disconnects after all pending reads and writes have completed. + * After calling this, the read and write methods will do nothing. +**/ +- (void)disconnectAfterReadingAndWriting; + +/* Returns YES if the socket and streams are open, connected, and ready for reading and writing. */ +- (BOOL)isConnected; + +/** + * Returns the local or remote host and port to which this socket is connected, or nil and 0 if not connected. + * The host will be an IP address. +**/ +- (NSString *)connectedHost; +- (UInt16)connectedPort; + +- (NSString *)localHost; +- (UInt16)localPort; + +/** + * Returns the local or remote address to which this socket is connected, + * specified as a sockaddr structure wrapped in a NSData object. + * + * See also the connectedHost, connectedPort, localHost and localPort methods. +**/ +- (NSData *)connectedAddress; +- (NSData *)localAddress; + +/** + * Returns whether the socket is IPv4 or IPv6. + * An accepting socket may be both. +**/ +- (BOOL)isIPv4; +- (BOOL)isIPv6; + +// The readData and writeData methods won't block (they are asynchronous). +// +// When a read is complete the onSocket:didReadData:withTag: delegate method is called. +// When a write is complete the onSocket:didWriteDataWithTag: delegate method is called. +// +// You may optionally set a timeout for any read/write operation. (To not timeout, use a negative time interval.) +// If a read/write opertion times out, the corresponding "onSocket:shouldTimeout..." delegate method +// is called to optionally allow you to extend the timeout. +// Upon a timeout, the "onSocket:willDisconnectWithError:" method is called, followed by "onSocketDidDisconnect". +// +// The tag is for your convenience. +// You can use it as an array index, step number, state id, pointer, etc. + +/** + * Reads the first available bytes that become available on the socket. + * + * If the timeout value is negative, the read operation will not use a timeout. +**/ +- (void)readDataWithTimeout:(NSTimeInterval)timeout tag:(long)tag; + +/** + * Reads the first available bytes that become available on the socket. + * The bytes will be appended to the given byte buffer starting at the given offset. + * The given buffer will automatically be increased in size if needed. + * + * If the timeout value is negative, the read operation will not use a timeout. + * If the buffer if nil, the socket will create a buffer for you. + * + * If the bufferOffset is greater than the length of the given buffer, + * the method will do nothing, and the delegate will not be called. + * + * If you pass a buffer, you must not alter it in any way while AsyncSocket is using it. + * After completion, the data returned in onSocket:didReadData:withTag: will be a subset of the given buffer. + * That is, it will reference the bytes that were appended to the given buffer. +**/ +- (void)readDataWithTimeout:(NSTimeInterval)timeout + buffer:(NSMutableData *)buffer + bufferOffset:(NSUInteger)offset + tag:(long)tag; + +/** + * Reads the first available bytes that become available on the socket. + * The bytes will be appended to the given byte buffer starting at the given offset. + * The given buffer will automatically be increased in size if needed. + * A maximum of length bytes will be read. + * + * If the timeout value is negative, the read operation will not use a timeout. + * If the buffer if nil, a buffer will automatically be created for you. + * If maxLength is zero, no length restriction is enforced. + * + * If the bufferOffset is greater than the length of the given buffer, + * the method will do nothing, and the delegate will not be called. + * + * If you pass a buffer, you must not alter it in any way while AsyncSocket is using it. + * After completion, the data returned in onSocket:didReadData:withTag: will be a subset of the given buffer. + * That is, it will reference the bytes that were appended to the given buffer. +**/ +- (void)readDataWithTimeout:(NSTimeInterval)timeout + buffer:(NSMutableData *)buffer + bufferOffset:(NSUInteger)offset + maxLength:(NSUInteger)length + tag:(long)tag; + +/** + * Reads the given number of bytes. + * + * If the timeout value is negative, the read operation will not use a timeout. + * + * If the length is 0, this method does nothing and the delegate is not called. +**/ +- (void)readDataToLength:(NSUInteger)length withTimeout:(NSTimeInterval)timeout tag:(long)tag; + +/** + * Reads the given number of bytes. + * The bytes will be appended to the given byte buffer starting at the given offset. + * The given buffer will automatically be increased in size if needed. + * + * If the timeout value is negative, the read operation will not use a timeout. + * If the buffer if nil, a buffer will automatically be created for you. + * + * If the length is 0, this method does nothing and the delegate is not called. + * If the bufferOffset is greater than the length of the given buffer, + * the method will do nothing, and the delegate will not be called. + * + * If you pass a buffer, you must not alter it in any way while AsyncSocket is using it. + * After completion, the data returned in onSocket:didReadData:withTag: will be a subset of the given buffer. + * That is, it will reference the bytes that were appended to the given buffer. +**/ +- (void)readDataToLength:(NSUInteger)length + withTimeout:(NSTimeInterval)timeout + buffer:(NSMutableData *)buffer + bufferOffset:(NSUInteger)offset + tag:(long)tag; + +/** + * Reads bytes until (and including) the passed "data" parameter, which acts as a separator. + * + * If the timeout value is negative, the read operation will not use a timeout. + * + * If you pass nil or zero-length data as the "data" parameter, + * the method will do nothing, and the delegate will not be called. + * + * To read a line from the socket, use the line separator (e.g. CRLF for HTTP, see below) as the "data" parameter. + * Note that this method is not character-set aware, so if a separator can occur naturally as part of the encoding for + * a character, the read will prematurely end. +**/ +- (void)readDataToData:(NSData *)data withTimeout:(NSTimeInterval)timeout tag:(long)tag; + +/** + * Reads bytes until (and including) the passed "data" parameter, which acts as a separator. + * The bytes will be appended to the given byte buffer starting at the given offset. + * The given buffer will automatically be increased in size if needed. + * + * If the timeout value is negative, the read operation will not use a timeout. + * If the buffer if nil, a buffer will automatically be created for you. + * + * If the bufferOffset is greater than the length of the given buffer, + * the method will do nothing, and the delegate will not be called. + * + * If you pass a buffer, you must not alter it in any way while AsyncSocket is using it. + * After completion, the data returned in onSocket:didReadData:withTag: will be a subset of the given buffer. + * That is, it will reference the bytes that were appended to the given buffer. + * + * To read a line from the socket, use the line separator (e.g. CRLF for HTTP, see below) as the "data" parameter. + * Note that this method is not character-set aware, so if a separator can occur naturally as part of the encoding for + * a character, the read will prematurely end. +**/ +- (void)readDataToData:(NSData *)data + withTimeout:(NSTimeInterval)timeout + buffer:(NSMutableData *)buffer + bufferOffset:(NSUInteger)offset + tag:(long)tag; + +/** + * Reads bytes until (and including) the passed "data" parameter, which acts as a separator. + * + * If the timeout value is negative, the read operation will not use a timeout. + * + * If maxLength is zero, no length restriction is enforced. + * Otherwise if maxLength bytes are read without completing the read, + * it is treated similarly to a timeout - the socket is closed with a AsyncSocketReadMaxedOutError. + * The read will complete successfully if exactly maxLength bytes are read and the given data is found at the end. + * + * If you pass nil or zero-length data as the "data" parameter, + * the method will do nothing, and the delegate will not be called. + * If you pass a maxLength parameter that is less than the length of the data parameter, + * the method will do nothing, and the delegate will not be called. + * + * To read a line from the socket, use the line separator (e.g. CRLF for HTTP, see below) as the "data" parameter. + * Note that this method is not character-set aware, so if a separator can occur naturally as part of the encoding for + * a character, the read will prematurely end. +**/ +- (void)readDataToData:(NSData *)data withTimeout:(NSTimeInterval)timeout maxLength:(NSUInteger)length tag:(long)tag; + +/** + * Reads bytes until (and including) the passed "data" parameter, which acts as a separator. + * The bytes will be appended to the given byte buffer starting at the given offset. + * The given buffer will automatically be increased in size if needed. + * A maximum of length bytes will be read. + * + * If the timeout value is negative, the read operation will not use a timeout. + * If the buffer if nil, a buffer will automatically be created for you. + * + * If maxLength is zero, no length restriction is enforced. + * Otherwise if maxLength bytes are read without completing the read, + * it is treated similarly to a timeout - the socket is closed with a AsyncSocketReadMaxedOutError. + * The read will complete successfully if exactly maxLength bytes are read and the given data is found at the end. + * + * If you pass a maxLength parameter that is less than the length of the data parameter, + * the method will do nothing, and the delegate will not be called. + * If the bufferOffset is greater than the length of the given buffer, + * the method will do nothing, and the delegate will not be called. + * + * If you pass a buffer, you must not alter it in any way while AsyncSocket is using it. + * After completion, the data returned in onSocket:didReadData:withTag: will be a subset of the given buffer. + * That is, it will reference the bytes that were appended to the given buffer. + * + * To read a line from the socket, use the line separator (e.g. CRLF for HTTP, see below) as the "data" parameter. + * Note that this method is not character-set aware, so if a separator can occur naturally as part of the encoding for + * a character, the read will prematurely end. +**/ +- (void)readDataToData:(NSData *)data + withTimeout:(NSTimeInterval)timeout + buffer:(NSMutableData *)buffer + bufferOffset:(NSUInteger)offset + maxLength:(NSUInteger)length + tag:(long)tag; + +/** + * Writes data to the socket, and calls the delegate when finished. + * + * If you pass in nil or zero-length data, this method does nothing and the delegate will not be called. + * If the timeout value is negative, the write operation will not use a timeout. +**/ +- (void)writeData:(NSData *)data withTimeout:(NSTimeInterval)timeout tag:(long)tag; + +/** + * Returns progress of current read or write, from 0.0 to 1.0, or NaN if no read/write (use isnan() to check). + * "tag", "done" and "total" will be filled in if they aren't NULL. +**/ +- (float)progressOfReadReturningTag:(long *)tag bytesDone:(NSUInteger *)done total:(NSUInteger *)total; +- (float)progressOfWriteReturningTag:(long *)tag bytesDone:(NSUInteger *)done total:(NSUInteger *)total; + +/** + * Secures the connection using SSL/TLS. + * + * This method may be called at any time, and the TLS handshake will occur after all pending reads and writes + * are finished. This allows one the option of sending a protocol dependent StartTLS message, and queuing + * the upgrade to TLS at the same time, without having to wait for the write to finish. + * Any reads or writes scheduled after this method is called will occur over the secured connection. + * + * The possible keys and values for the TLS settings are well documented. + * Some possible keys are: + * - kCFStreamSSLLevel + * - kCFStreamSSLAllowsExpiredCertificates + * - kCFStreamSSLAllowsExpiredRoots + * - kCFStreamSSLAllowsAnyRoot + * - kCFStreamSSLValidatesCertificateChain + * - kCFStreamSSLPeerName + * - kCFStreamSSLCertificates + * - kCFStreamSSLIsServer + * + * Please refer to Apple's documentation for associated values, as well as other possible keys. + * + * If you pass in nil or an empty dictionary, the default settings will be used. + * + * The default settings will check to make sure the remote party's certificate is signed by a + * trusted 3rd party certificate agency (e.g. verisign) and that the certificate is not expired. + * However it will not verify the name on the certificate unless you + * give it a name to verify against via the kCFStreamSSLPeerName key. + * The security implications of this are important to understand. + * Imagine you are attempting to create a secure connection to MySecureServer.com, + * but your socket gets directed to MaliciousServer.com because of a hacked DNS server. + * If you simply use the default settings, and MaliciousServer.com has a valid certificate, + * the default settings will not detect any problems since the certificate is valid. + * To properly secure your connection in this particular scenario you + * should set the kCFStreamSSLPeerName property to "MySecureServer.com". + * If you do not know the peer name of the remote host in advance (for example, you're not sure + * if it will be "domain.com" or "www.domain.com"), then you can use the default settings to validate the + * certificate, and then use the X509Certificate class to verify the issuer after the socket has been secured. + * The X509Certificate class is part of the CocoaAsyncSocket open source project. +**/ +- (void)startTLS:(NSDictionary *)tlsSettings; + +/** + * For handling readDataToData requests, data is necessarily read from the socket in small increments. + * The performance can be much improved by allowing AsyncSocket to read larger chunks at a time and + * store any overflow in a small internal buffer. + * This is termed pre-buffering, as some data may be read for you before you ask for it. + * If you use readDataToData a lot, enabling pre-buffering will result in better performance, especially on the iPhone. + * + * The default pre-buffering state is controlled by the DEFAULT_PREBUFFERING definition. + * It is highly recommended one leave this set to YES. + * + * This method exists in case pre-buffering needs to be disabled by default for some unforeseen reason. + * In that case, this method exists to allow one to easily enable pre-buffering when ready. +**/ +- (void)enablePreBuffering; + +/** + * When you create an AsyncSocket, it is added to the runloop of the current thread. + * So for manually created sockets, it is easiest to simply create the socket on the thread you intend to use it. + * + * If a new socket is accepted, the delegate method onSocket:wantsRunLoopForNewSocket: is called to + * allow you to place the socket on a separate thread. This works best in conjunction with a thread pool design. + * + * If, however, you need to move the socket to a separate thread at a later time, this + * method may be used to accomplish the task. + * + * This method must be called from the thread/runloop the socket is currently running on. + * + * Note: After calling this method, all further method calls to this object should be done from the given runloop. + * Also, all delegate calls will be sent on the given runloop. +**/ +- (BOOL)moveToRunLoop:(NSRunLoop *)runLoop; + +/** + * Allows you to configure which run loop modes the socket uses. + * The default set of run loop modes is NSDefaultRunLoopMode. + * + * If you'd like your socket to continue operation during other modes, you may want to add modes such as + * NSModalPanelRunLoopMode or NSEventTrackingRunLoopMode. Or you may simply want to use NSRunLoopCommonModes. + * + * Accepted sockets will automatically inherit the same run loop modes as the listening socket. + * + * Note: NSRunLoopCommonModes is defined in 10.5. For previous versions one can use kCFRunLoopCommonModes. +**/ +- (BOOL)setRunLoopModes:(NSArray *)runLoopModes; +- (BOOL)addRunLoopMode:(NSString *)runLoopMode; +- (BOOL)removeRunLoopMode:(NSString *)runLoopMode; + +/** + * Returns the current run loop modes the AsyncSocket instance is operating in. + * The default set of run loop modes is NSDefaultRunLoopMode. +**/ +- (NSArray *)runLoopModes; + +/** + * In the event of an error, this method may be called during onSocket:willDisconnectWithError: to read + * any data that's left on the socket. +**/ +- (NSData *)unreadData; + +/* A few common line separators, for use with the readDataToData:... methods. */ ++ (NSData *)CRLFData; // 0x0D0A ++ (NSData *)CRData; // 0x0D ++ (NSData *)LFData; // 0x0A ++ (NSData *)ZeroData; // 0x00 + +@end |
