diff options
Diffstat (limited to 'Firebase/Database/third_party/SocketRocket/FSRWebSocket.m')
| -rw-r--r-- | Firebase/Database/third_party/SocketRocket/FSRWebSocket.m | 352 |
1 files changed, 176 insertions, 176 deletions
diff --git a/Firebase/Database/third_party/SocketRocket/FSRWebSocket.m b/Firebase/Database/third_party/SocketRocket/FSRWebSocket.m index f96d863..a2c857b 100644 --- a/Firebase/Database/third_party/SocketRocket/FSRWebSocket.m +++ b/Firebase/Database/third_party/SocketRocket/FSRWebSocket.m @@ -52,7 +52,7 @@ typedef enum { SROpCodeTextFrame = 0x1, SROpCodeBinaryFrame = 0x2, - //3-7Reserved + //3-7Reserved SROpCodeConnectionClose = 0x8, SROpCodePing = 0x9, SROpCodePong = 0xA, @@ -117,13 +117,13 @@ static inline void SRFastLog(NSString *format, ...); static NSString *newSHA1String(const char *bytes, size_t length) { uint8_t md[CC_SHA1_DIGEST_LENGTH]; - + CC_SHA1(bytes, (int)length, md); - + size_t buffer_size = ((sizeof(md) * 3 + 2) / 2); - + char *buffer = (char *)malloc(buffer_size); - + int len = f_b64_ntop(md, CC_SHA1_DIGEST_LENGTH, buffer, buffer_size); if (len == -1) { free(buffer); @@ -232,10 +232,10 @@ typedef void (^data_callback)(FSRWebSocket *webSocket, NSData *data); NSInputStream *_inputStream; NSOutputStream *_outputStream; - + NSMutableData *_readBuffer; NSInteger _readBufferOffset; - + NSMutableData *_outputBuffer; NSInteger _outputBufferOffset; @@ -244,18 +244,18 @@ typedef void (^data_callback)(FSRWebSocket *webSocket, NSData *data); size_t _readOpCount; uint32_t _currentStringScanPosition; NSMutableData *_currentFrameData; - + NSString *_closeReason; - + NSString *_secKey; - + BOOL _pinnedCertFound; - + uint8_t _currentReadMaskKey[4]; size_t _currentReadMaskOffset; BOOL _consumerStopped; - + BOOL _closeWhenFinishedWriting; BOOL _failed; @@ -264,19 +264,19 @@ typedef void (^data_callback)(FSRWebSocket *webSocket, NSData *data); NSString *_userAgent; CFHTTPMessageRef _receivedHTTPHeaders; - + BOOL _sentClose; BOOL _didFail; BOOL _cleanupScheduled; int _closeCode; - + BOOL _isPumping; NSMutableSet *_scheduledRunloops; - + // We use this to retain ourselves. __strong FSRWebSocket *_selfRetain; - + NSArray *_requestedProtocols; FSRIOConsumerPool *_consumerPool; } @@ -300,26 +300,26 @@ static __strong NSData *CRLFCRLF; assert(request.URL); _url = request.URL; NSString *scheme = [_url scheme]; - + _requestedProtocols = [protocols copy]; _userAgent = userAgent; assert([scheme isEqualToString:@"ws"] || [scheme isEqualToString:@"http"] || [scheme isEqualToString:@"wss"] || [scheme isEqualToString:@"https"]); _urlRequest = request; - + if ([scheme isEqualToString:@"wss"] || [scheme isEqualToString:@"https"]) { _secure = YES; } - + if (!queue) { _delegateDispatchQueue = dispatch_get_main_queue(); } else { _delegateDispatchQueue = queue; } - + [self _SR_commonInit]; } - + return self; } @@ -345,7 +345,7 @@ static __strong NSData *CRLFCRLF; - (id)initWithURL:(NSURL *)url protocols:(NSArray *)protocols; { - NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url]; + NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url]; return [self initWithURLRequest:request protocols:protocols]; } @@ -354,9 +354,9 @@ static __strong NSData *CRLFCRLF; _readyState = SR_CONNECTING; _consumerStopped = YES; - + _webSocketVersion = 13; - + _workQueue = dispatch_queue_create(NULL, DISPATCH_QUEUE_SERIAL); // Going to set a specific on the queue so we can validate we're on the work queue @@ -366,7 +366,7 @@ static __strong NSData *CRLFCRLF; _readBuffer = [[NSMutableData alloc] init]; _outputBuffer = [[NSMutableData alloc] init]; - + _currentFrameData = [[NSMutableData alloc] init]; _consumers = [[NSMutableArray alloc] init]; @@ -376,7 +376,7 @@ static __strong NSData *CRLFCRLF; _scheduledRunloops = [[NSMutableSet alloc] init]; [self _initializeStreams]; - + // default handlers } @@ -395,7 +395,7 @@ static __strong NSData *CRLFCRLF; sr_dispatch_release(_workQueue); _workQueue = NULL; - + if (_receivedHTTPHeaders) { CFRelease(_receivedHTTPHeaders); _receivedHTTPHeaders = NULL; @@ -460,29 +460,29 @@ static __strong NSData *CRLFCRLF; if (acceptHeader == nil) { return NO; } - + NSString *concattedString = [_secKey stringByAppendingString:SRWebSocketAppendToSecKeyString]; NSString *expectedAccept = [concattedString stringBySHA1ThenBase64Encoding]; - + return [acceptHeader isEqualToString:expectedAccept]; } - (void)_HTTPHeadersDidFinish; { NSInteger responseCode = CFHTTPMessageGetResponseStatusCode(_receivedHTTPHeaders); - + if (responseCode >= 400) { SRFastLog(@"Request failed with response code %d", responseCode); [self _failWithError:[NSError errorWithDomain:@"org.lolrus.SocketRocket" code:2132 userInfo:[NSDictionary dictionaryWithObject:[NSString stringWithFormat:@"received bad response code from server %u", (int)responseCode] forKey:NSLocalizedDescriptionKey]]]; return; } - + if(![self _checkHandshake:_receivedHTTPHeaders]) { [self _failWithError:[NSError errorWithDomain:FSRWebSocketErrorDomain code:2133 userInfo:[NSDictionary dictionaryWithObject:[NSString stringWithFormat:@"Invalid Sec-WebSocket-Accept response"] forKey:NSLocalizedDescriptionKey]]]; return; } - + NSString *negotiatedProtocol = CFBridgingRelease(CFHTTPMessageCopyHeaderFieldValue(_receivedHTTPHeaders, CFSTR("Sec-WebSocket-Protocol"))); if (negotiatedProtocol) { // Make sure we requested the protocol @@ -490,12 +490,12 @@ static __strong NSData *CRLFCRLF; [self _failWithError:[NSError errorWithDomain:FSRWebSocketErrorDomain code:2133 userInfo:[NSDictionary dictionaryWithObject:[NSString stringWithFormat:@"Server specified Sec-WebSocket-Protocol that wasn't requested"] forKey:NSLocalizedDescriptionKey]]]; return; } - + _protocol = negotiatedProtocol; } - + self.readyState = SR_OPEN; - + if (!_didFail) { [self _readFrameNew]; } @@ -513,10 +513,10 @@ static __strong NSData *CRLFCRLF; if (_receivedHTTPHeaders == NULL) { _receivedHTTPHeaders = CFHTTPMessageCreateEmpty(NULL, NO); } - + [self _readUntilHeaderCompleteWithCallback:^(FSRWebSocket *self, NSData *data) { CFHTTPMessageAppendBytes(_receivedHTTPHeaders, (const UInt8 *)data.bytes, data.length); - + if (CFHTTPMessageIsHeaderComplete(_receivedHTTPHeaders)) { SRFastLog(@"Finished reading headers %@", CFBridgingRelease(CFHTTPMessageCopyAllHeaderFields(_receivedHTTPHeaders))); [self _HTTPHeadersDidFinish]; @@ -530,16 +530,16 @@ static __strong NSData *CRLFCRLF; { SRFastLog(@"Connected"); CFHTTPMessageRef request = CFHTTPMessageCreateRequest(NULL, CFSTR("GET"), (__bridge CFURLRef)_url, kCFHTTPVersion1_1); - + // Set host first so it defaults CFHTTPMessageSetHeaderFieldValue(request, CFSTR("Host"), (__bridge CFStringRef)(_url.port ? [NSString stringWithFormat:@"%@:%@", _url.host, _url.port] : _url.host)); - + NSMutableData *keyBytes = [[NSMutableData alloc] initWithLength:16]; int result = SecRandomCopyBytes(kSecRandomDefault, keyBytes.length, keyBytes.mutableBytes); assert(result == 0); _secKey = [FSRUtilities base64EncodedStringFromData:keyBytes]; assert([_secKey length] == 24); - + CFHTTPMessageSetHeaderFieldValue(request, CFSTR("Upgrade"), CFSTR("websocket")); CFHTTPMessageSetHeaderFieldValue(request, CFSTR("Connection"), CFSTR("Upgrade")); if (_userAgent) { @@ -548,9 +548,9 @@ static __strong NSData *CRLFCRLF; CFHTTPMessageSetHeaderFieldValue(request, CFSTR("Sec-WebSocket-Key"), (__bridge CFStringRef)_secKey); CFHTTPMessageSetHeaderFieldValue(request, CFSTR("Sec-WebSocket-Version"), (__bridge CFStringRef)[NSString stringWithFormat:@"%u", (int)_webSocketVersion]); - + CFHTTPMessageSetHeaderFieldValue(request, CFSTR("Origin"), (__bridge CFStringRef)_url.SR_origin); - + if (_requestedProtocols) { CFHTTPMessageSetHeaderFieldValue(request, CFSTR("Sec-WebSocket-Protocol"), (__bridge CFStringRef)[_requestedProtocols componentsJoinedByString:@", "]); } @@ -558,9 +558,9 @@ static __strong NSData *CRLFCRLF; [_urlRequest.allHTTPHeaderFields enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) { CFHTTPMessageSetHeaderFieldValue(request, (__bridge CFStringRef)key, (__bridge CFStringRef)obj); }]; - + NSData *message = CFBridgingRelease(CFHTTPMessageCopySerializedMessage(request)); - + CFRelease(request); [self _writeData:message]; @@ -582,34 +582,34 @@ static __strong NSData *CRLFCRLF; CFReadStreamRef readStream = NULL; CFWriteStreamRef writeStream = NULL; - + CFStreamCreatePairWithSocketToHost(NULL, (__bridge CFStringRef)host, (int)port, &readStream, &writeStream); - + // XXX CFReadStreamSetProperty(readStream, kCFStreamNetworkServiceType, kCFStreamNetworkServiceTypeBackground); CFWriteStreamSetProperty(writeStream, kCFStreamNetworkServiceType, kCFStreamNetworkServiceTypeBackground); - + _outputStream = CFBridgingRelease(writeStream); _inputStream = CFBridgingRelease(readStream); - - + + if (_secure) { NSMutableDictionary *SSLOptions = [[NSMutableDictionary alloc] init]; - + [_outputStream setProperty:(__bridge id)kCFStreamSocketSecurityLevelNegotiatedSSL forKey:(__bridge id)kCFStreamPropertySocketSecurityLevel]; - + // If we're using pinned certs, don't validate the certificate chain if ([_urlRequest FSR_SSLPinnedCertificates].count) { [SSLOptions setValue:[NSNumber numberWithBool:NO] forKey:(__bridge id)kCFStreamSSLValidatesCertificateChain]; } - + [_outputStream setProperty:SSLOptions forKey:(__bridge id)kCFStreamPropertySSLSettings]; } - + _inputStream.delegate = self; _outputStream.delegate = self; - + [_outputStream open]; [_inputStream open]; } @@ -653,7 +653,7 @@ static __strong NSData *CRLFCRLF; if (self.readyState == SR_CLOSING || self.readyState == SR_CLOSED) { return; } - + BOOL wasConnecting = self.readyState == SR_CONNECTING; self.readyState = SR_CLOSING; @@ -668,16 +668,16 @@ static __strong NSData *CRLFCRLF; size_t maxMsgSize = [reason maximumLengthOfBytesUsingEncoding:NSUTF8StringEncoding]; NSMutableData *mutablePayload = [[NSMutableData alloc] initWithLength:sizeof(uint16_t) + maxMsgSize]; NSData *payload = mutablePayload; - + ((uint16_t *)mutablePayload.mutableBytes)[0] = EndianU16_BtoN(code); - + if (reason) { NSRange remainingRange = {0}; - + NSUInteger usedLength = 0; - + BOOL success = [reason getBytes:(char *)mutablePayload.mutableBytes + sizeof(uint16_t) maxLength:payload.length - sizeof(uint16_t) usedLength:&usedLength encoding:NSUTF8StringEncoding options:NSStringEncodingConversionExternalRepresentation range:NSMakeRange(0, reason.length) remainingRange:&remainingRange]; - + assert(success); assert(remainingRange.length == 0); @@ -685,15 +685,15 @@ static __strong NSData *CRLFCRLF; payload = [payload subdataWithRange:NSMakeRange(0, usedLength + sizeof(uint16_t))]; } } - - + + [self _sendFrameWithOpcode:SROpCodeConnectionClose data:payload]; }); } - (void)_closeWithProtocolError:(NSString *)message; { - // Need to shunt this on the _callbackQueue first to see if they received any messages + // Need to shunt this on the _callbackQueue first to see if they received any messages [self _performDelegateBlock:^{ [self closeWithCode:SRStatusCodeProtocolError reason:message]; dispatch_async(_workQueue, ^{ @@ -716,7 +716,7 @@ static __strong NSData *CRLFCRLF; self.readyState = SR_CLOSED; SRFastLog(@"Failing with error %@", error.localizedDescription); - + [self _disconnect]; [self _scheduleCleanup]; } @@ -724,7 +724,7 @@ static __strong NSData *CRLFCRLF; } - (void)_writeData:(NSData *)data; -{ +{ [self assertOnWorkQueue]; if (_closeWhenFinishedWriting) { @@ -782,7 +782,7 @@ static inline BOOL closeCodeIsValid(int closeCode) { if (closeCode < 1000) { return NO; } - + if (closeCode >= 1000 && closeCode <= 1011) { if (closeCode == 1004 || closeCode == 1005 || @@ -791,11 +791,11 @@ static inline BOOL closeCodeIsValid(int closeCode) { } return YES; } - + if (closeCode >= 3000 && closeCode <= 3999) { return YES; } - + if (closeCode >= 4000 && closeCode <= 4999) { return YES; } @@ -816,9 +816,9 @@ static inline BOOL closeCodeIsValid(int closeCode) { { size_t dataSize = data.length; __block uint16_t closeCode = 0; - + SRFastLog(@"Received close frame"); - + if (dataSize == 1) { // TODO handle error [self _closeWithProtocolError:@"Payload for close must be larger than 2 bytes"]; @@ -840,9 +840,9 @@ static inline BOOL closeCodeIsValid(int closeCode) { } else { _closeCode = SRStatusNoStatusReceived; } - + [self assertOnWorkQueue]; - + if (self.readyState == SR_OPEN) { [self closeWithCode:1000 reason:nil]; } @@ -860,9 +860,9 @@ static inline BOOL closeCodeIsValid(int closeCode) { } - (void)_handleFrameWithData:(NSData *)frameData opCode:(NSInteger)opcode; -{ +{ // Check that the current data is valid UTF8 - + BOOL isControlFrame = (opcode == SROpCodePing || opcode == SROpCodePong || opcode == SROpCodeConnectionClose); if (!isControlFrame) { [self _readFrameNew]; @@ -871,7 +871,7 @@ static inline BOOL closeCodeIsValid(int closeCode) { [self _readFrameContinue]; }); } - + switch (opcode) { case SROpCodeTextFrame: { NSString *str = [[NSString alloc] initWithData:frameData encoding:NSUTF8StringEncoding]; @@ -908,29 +908,29 @@ static inline BOOL closeCodeIsValid(int closeCode) { - (void)_handleFrameHeader:(frame_header)frame_header curData:(NSData *)curData; { assert(frame_header.opcode != 0); - + if (self.readyState != SR_OPEN) { return; } - - + + BOOL isControlFrame = (frame_header.opcode == SROpCodePing || frame_header.opcode == SROpCodePong || frame_header.opcode == SROpCodeConnectionClose); - + if (isControlFrame && !frame_header.fin) { [self _closeWithProtocolError:@"Fragmented control frames not allowed"]; return; } - + if (isControlFrame && frame_header.payload_length >= 126) { [self _closeWithProtocolError:@"Control frames cannot have payloads larger than 126 bytes"]; return; } - + if (!isControlFrame) { _currentFrameOpcode = frame_header.opcode; _currentFrameCount += 1; } - + if (frame_header.payload_length == 0) { if (isControlFrame) { [self _handleFrameWithData:curData opCode:frame_header.opcode]; @@ -953,7 +953,7 @@ static inline BOOL closeCodeIsValid(int closeCode) { // TODO add assert that opcode is not a control; [self _readFrameContinue]; } - + } } readToCurrentFrame:!isControlFrame unmaskBytes:frame_header.masked]; } @@ -994,51 +994,51 @@ static const uint8_t SRPayloadLenMask = 0x7F; [self _addConsumerWithDataLength:2 callback:^(FSRWebSocket *self, NSData *data) { __block frame_header header = {0}; - + const uint8_t *headerBuffer = data.bytes; assert(data.length >= 2); - + if (headerBuffer[0] & SRRsvMask) { [self _closeWithProtocolError:@"Server used RSV bits"]; return; } - + uint8_t receivedOpcode = (SROpCodeMask & headerBuffer[0]); - + BOOL isControlFrame = (receivedOpcode == SROpCodePing || receivedOpcode == SROpCodePong || receivedOpcode == SROpCodeConnectionClose); - + if (!isControlFrame && receivedOpcode != 0 && self->_currentFrameCount > 0) { [self _closeWithProtocolError:@"all data frames after the initial data frame must have opcode 0"]; return; } - + if (receivedOpcode == 0 && self->_currentFrameCount == 0) { [self _closeWithProtocolError:@"cannot continue a message"]; return; } - + header.opcode = receivedOpcode == 0 ? self->_currentFrameOpcode : receivedOpcode; - + header.fin = !!(SRFinMask & headerBuffer[0]); - - + + header.masked = !!(SRMaskMask & headerBuffer[1]); header.payload_length = SRPayloadLenMask & headerBuffer[1]; - + headerBuffer = NULL; - + if (header.masked) { [self _closeWithProtocolError:@"Client must receive unmasked data"]; } - + size_t extra_bytes_needed = header.masked ? sizeof(_currentReadMaskKey) : 0; - + if (header.payload_length == 126) { extra_bytes_needed += sizeof(uint16_t); } else if (header.payload_length == 127) { extra_bytes_needed += sizeof(uint64_t); } - + if (extra_bytes_needed == 0) { [self _handleFrameHeader:header curData:self->_currentFrameData]; } else { @@ -1046,7 +1046,7 @@ static const uint8_t SRPayloadLenMask = 0x7F; size_t mapped_size = data.length; const void *mapped_buffer = data.bytes; size_t offset = 0; - + if (header.payload_length == 126) { assert(mapped_size >= sizeof(uint16_t)); uint16_t newLen = EndianU16_BtoN(*(uint16_t *)(mapped_buffer)); @@ -1059,13 +1059,13 @@ static const uint8_t SRPayloadLenMask = 0x7F; } else { assert(header.payload_length < 126 && header.payload_length >= 0); } - - + + if (header.masked) { assert(mapped_size >= sizeof(_currentReadMaskOffset) + offset); memcpy(self->_currentReadMaskKey, ((uint8_t *)mapped_buffer) + offset, sizeof(self->_currentReadMaskKey)); } - + [self _handleFrameHeader:header curData:self->_currentFrameData]; } readToCurrentFrame:NO unmaskBytes:NO]; } @@ -1076,12 +1076,12 @@ static const uint8_t SRPayloadLenMask = 0x7F; { dispatch_async(_workQueue, ^{ [_currentFrameData setLength:0]; - + _currentFrameOpcode = 0; _currentFrameCount = 0; _readOpCount = 0; _currentStringScanPosition = 0; - + [self _readFrameContinue]; }); } @@ -1097,17 +1097,17 @@ static const uint8_t SRPayloadLenMask = 0x7F; [self _failWithError:[NSError errorWithDomain:@"org.lolrus.SocketRocket" code:2145 userInfo:[NSDictionary dictionaryWithObject:@"Error writing to stream" forKey:NSLocalizedDescriptionKey]]]; return; } - + _outputBufferOffset += bytesWritten; - + if (_outputBufferOffset > 4096 && _outputBufferOffset > (_outputBuffer.length >> 1)) { _outputBuffer = [[NSMutableData alloc] initWithBytes:(char *)_outputBuffer.bytes + _outputBufferOffset length:_outputBuffer.length - _outputBufferOffset]; _outputBufferOffset = 0; } } - - if (_closeWhenFinishedWriting && - _outputBuffer.length - _outputBufferOffset == 0 && + + if (_closeWhenFinishedWriting && + _outputBuffer.length - _outputBufferOffset == 0 && (_inputStream.streamStatus != NSStreamStatusNotOpen && _inputStream.streamStatus != NSStreamStatusClosed) && !_sentClose) { @@ -1119,7 +1119,7 @@ static const uint8_t SRPayloadLenMask = 0x7F; // TODO: Why are we missing the SocketRocket code to call unscheduleFromRunLoop??? } - + if (!_failed) { [self _performDelegateBlock:^{ if ([self.delegate respondsToSelector:@selector(webSocket:didCloseWithCode:reason:wasClean:)]) { @@ -1138,7 +1138,7 @@ static const uint8_t SRPayloadLenMask = 0x7F; } - (void)_addConsumerWithDataLength:(size_t)dataLength callback:(data_callback)callback readToCurrentFrame:(BOOL)readToCurrentFrame unmaskBytes:(BOOL)unmaskBytes; -{ +{ [self assertOnWorkQueue]; assert(dataLength); @@ -1147,7 +1147,7 @@ static const uint8_t SRPayloadLenMask = 0x7F; } - (void)_addConsumerWithScanner:(stream_scanner)consumer callback:(data_callback)callback dataLength:(size_t)dataLength; -{ +{ [self assertOnWorkQueue]; [_consumers addObject:[_consumerPool consumerWithScanner:consumer handler:callback bytesNeeded:dataLength readToCurrentFrame:NO unmaskBytes:NO]]; [self _pumpScanner]; @@ -1202,7 +1202,7 @@ static const char CRLFCRLFBytes[] = {'\r', '\n', '\r', '\n'}; stream_scanner consumer = ^size_t(NSData *data) { __block size_t found_size = 0; __block size_t match_count = 0; - + size_t size = data.length; const unsigned char *buffer = data.bytes; for (int i = 0; i < size; i++ ) { @@ -1224,29 +1224,29 @@ static const char CRLFCRLFBytes[] = {'\r', '\n', '\r', '\n'}; // Returns true if did work - (BOOL)_innerPumpScanner { - + BOOL didWork = NO; - + if (self.readyState >= SR_CLOSING) { return didWork; } - + if (!_consumers.count) { return didWork; } - + size_t curSize = _readBuffer.length - _readBufferOffset; if (!curSize) { return didWork; } - + FSRIOConsumer *consumer = [_consumers objectAtIndex:0]; - + size_t bytesNeeded = consumer.bytesNeeded; - + size_t foundSize = 0; if (consumer.consumer) { - NSData *tempView = [NSData dataWithBytesNoCopy:(char *)_readBuffer.bytes + _readBufferOffset length:_readBuffer.length - _readBufferOffset freeWhenDone:NO]; + NSData *tempView = [NSData dataWithBytesNoCopy:(char *)_readBuffer.bytes + _readBufferOffset length:_readBuffer.length - _readBufferOffset freeWhenDone:NO]; foundSize = consumer.consumer(tempView); } else { assert(consumer.bytesNeeded); @@ -1256,48 +1256,48 @@ static const char CRLFCRLFBytes[] = {'\r', '\n', '\r', '\n'}; foundSize = curSize; } } - + NSData *slice = nil; if (consumer.readToCurrentFrame || foundSize) { NSRange sliceRange = NSMakeRange(_readBufferOffset, foundSize); slice = [_readBuffer subdataWithRange:sliceRange]; - + _readBufferOffset += foundSize; - + if (_readBufferOffset > 4096 && _readBufferOffset > (_readBuffer.length >> 1)) { _readBuffer = [[NSMutableData alloc] initWithBytes:(char *)_readBuffer.bytes + _readBufferOffset length:_readBuffer.length - _readBufferOffset]; _readBufferOffset = 0; } - + if (consumer.unmaskBytes) { NSMutableData *mutableSlice = [slice mutableCopy]; - + NSUInteger len = mutableSlice.length; uint8_t *bytes = mutableSlice.mutableBytes; - + for (int i = 0; i < len; i++) { bytes[i] = bytes[i] ^ _currentReadMaskKey[_currentReadMaskOffset % sizeof(_currentReadMaskKey)]; _currentReadMaskOffset += 1; } - + slice = mutableSlice; } - + if (consumer.readToCurrentFrame) { [_currentFrameData appendData:slice]; - + _readOpCount += 1; - + if (_currentFrameOpcode == SROpCodeTextFrame) { // Validate UTF8 stuff. size_t currentDataSize = _currentFrameData.length; if (_currentFrameOpcode == SROpCodeTextFrame && currentDataSize > 0) { // TODO: Optimize the crap out of this. Don't really have to copy all the data each time - + size_t scanSize = currentDataSize - _currentStringScanPosition; - + NSData *scan_data = [_currentFrameData subdataWithRange:NSMakeRange(_currentStringScanPosition, scanSize)]; int32_t valid_utf8_size = validate_dispatch_data_partial_string(scan_data); - + if (valid_utf8_size == -1) { [self closeWithCode:SRStatusCodeInvalidUTF8 reason:@"Text frames must be valid UTF-8"]; dispatch_async(_workQueue, ^{ @@ -1307,12 +1307,12 @@ static const char CRLFCRLFBytes[] = {'\r', '\n', '\r', '\n'}; } else { _currentStringScanPosition += valid_utf8_size; } - } - + } + } - + consumer.bytesNeeded -= foundSize; - + if (consumer.bytesNeeded == 0) { [_consumers removeObjectAtIndex:0]; consumer.handler(self, nil); @@ -1330,17 +1330,17 @@ static const char CRLFCRLFBytes[] = {'\r', '\n', '\r', '\n'}; -(void)_pumpScanner; { [self assertOnWorkQueue]; - + if (!_isPumping) { _isPumping = YES; } else { return; } - + while ([self _innerPumpScanner]) { - + } - + _isPumping = NO; } @@ -1351,33 +1351,33 @@ static const size_t SRFrameHeaderOverhead = 32; - (void)_sendFrameWithOpcode:(FSROpCode)opcode data:(id)data; { [self assertOnWorkQueue]; - + NSAssert(data == nil || [data isKindOfClass:[NSData class]] || [data isKindOfClass:[NSString class]], @"Function expects nil, NSString or NSData"); - + size_t payloadLength = [data isKindOfClass:[NSString class]] ? [(NSString *)data lengthOfBytesUsingEncoding:NSUTF8StringEncoding] : [data length]; - + NSMutableData *frame = [[NSMutableData alloc] initWithLength:payloadLength + SRFrameHeaderOverhead]; if (!frame) { [self closeWithCode:SRStatusCodeMessageTooBig reason:@"Message too big"]; return; } uint8_t *frame_buffer = (uint8_t *)[frame mutableBytes]; - + // set fin frame_buffer[0] = SRFinMask | opcode; - + BOOL useMask = YES; #ifdef NOMASK useMask = NO; #endif - + if (useMask) { // set the mask and header frame_buffer[1] |= SRMaskMask; } - + size_t frame_buffer_size = 2; - + const uint8_t *unmasked_payload = NULL; if ([data isKindOfClass:[NSData class]]) { unmasked_payload = (uint8_t *)[data bytes]; @@ -1386,7 +1386,7 @@ static const size_t SRFrameHeaderOverhead = 32; } else { assert(NO); } - + if (payloadLength < 126) { frame_buffer[1] |= payloadLength; } else if (payloadLength <= UINT16_MAX) { @@ -1398,7 +1398,7 @@ static const size_t SRFrameHeaderOverhead = 32; *((uint64_t *)(frame_buffer + frame_buffer_size)) = EndianU64_BtoN((uint64_t)payloadLength); frame_buffer_size += sizeof(uint64_t); } - + if (!useMask) { for (int i = 0; i < payloadLength; i++) { frame_buffer[frame_buffer_size] = unmasked_payload[i]; @@ -1409,7 +1409,7 @@ static const size_t SRFrameHeaderOverhead = 32; int result = SecRandomCopyBytes(kSecRandomDefault, sizeof(uint32_t), (uint8_t *)mask_key); assert(result == 0); frame_buffer_size += sizeof(uint32_t); - + // TODO: could probably optimize this with SIMD for (int i = 0; i < payloadLength; i++) { frame_buffer[frame_buffer_size] = unmasked_payload[i] ^ mask_key[i % sizeof(uint32_t)]; @@ -1419,7 +1419,7 @@ static const size_t SRFrameHeaderOverhead = 32; assert(frame_buffer_size <= [frame length]); frame.length = frame_buffer_size; - + [self _writeData:frame]; } @@ -1445,7 +1445,7 @@ static const size_t SRFrameHeaderOverhead = 32; } if (_secure && !_pinnedCertFound && (eventCode == NSStreamEventHasBytesAvailable || eventCode == NSStreamEventHasSpaceAvailable)) { - + NSArray *sslCerts = [_urlRequest FSR_SSLPinnedCertificates]; if (sslCerts) { SecTrustRef secTrust = (__bridge SecTrustRef)[aStream propertyForKey:(__bridge id)kCFStreamPropertySSLPeerTrust]; @@ -1454,11 +1454,11 @@ static const size_t SRFrameHeaderOverhead = 32; for (NSInteger i = 0; i < numCerts && !_pinnedCertFound; i++) { SecCertificateRef cert = SecTrustGetCertificateAtIndex(secTrust, i); NSData *certData = CFBridgingRelease(SecCertificateCopyData(cert)); - + for (id ref in sslCerts) { SecCertificateRef trustedCert = (__bridge SecCertificateRef)ref; NSData *trustedCertData = CFBridgingRelease(SecCertificateCopyData(trustedCert)); - + if ([trustedCertData isEqualToData:certData]) { _pinnedCertFound = YES; break; @@ -1466,7 +1466,7 @@ static const size_t SRFrameHeaderOverhead = 32; } } } - + if (!_pinnedCertFound) { dispatch_async(_workQueue, ^{ NSDictionary *userInfo = @{ NSLocalizedDescriptionKey : @"Invalid server cert" }; @@ -1669,13 +1669,13 @@ static const size_t SRFrameHeaderOverhead = 32; - (NSString *)SR_origin; { NSString *scheme = [self.scheme lowercaseString]; - + if ([scheme isEqualToString:@"wss"]) { scheme = @"https"; } else if ([scheme isEqualToString:@"ws"]) { scheme = @"http"; } - + if (self.port) { return [NSString stringWithFormat:@"%@://%@:%@/", scheme, self.host, self.port]; } else { @@ -1691,11 +1691,11 @@ static inline void SRFastLog(NSString *format, ...) { #ifdef SR_ENABLE_LOG __block va_list arg_list; va_start (arg_list, format); - + NSString *formattedString = [[NSString alloc] initWithFormat:format arguments:arg_list]; - + va_end(arg_list); - + NSLog(@"[SR] %@", formattedString); #endif } @@ -1704,13 +1704,13 @@ static inline void SRFastLog(NSString *format, ...) { #ifdef HAS_ICU static inline int32_t validate_dispatch_data_partial_string(NSData *data) { - + const void * contents = [data bytes]; long size = [data length]; - + const uint8_t *str = (const uint8_t *)contents; - - + + UChar32 codepoint = 1; int32_t offset = 0; int32_t lastOffset = 0; @@ -1718,33 +1718,33 @@ static inline int32_t validate_dispatch_data_partial_string(NSData *data) { lastOffset = offset; U8_NEXT(str, offset, size, codepoint); } - + if (codepoint == -1) { // Check to see if the last byte is valid or whether it was just continuing if (!U8_IS_LEAD(str[lastOffset]) || U8_COUNT_TRAIL_BYTES(str[lastOffset]) + lastOffset < (int32_t)size) { - + size = -1; } else { uint8_t leadByte = str[lastOffset]; U8_MASK_LEAD_BYTE(leadByte, U8_COUNT_TRAIL_BYTES(leadByte)); - + for (int i = lastOffset + 1; i < offset; i++) { - + if (U8_IS_SINGLE(str[i]) || U8_IS_LEAD(str[i]) || !U8_IS_TRAIL(str[i])) { size = -1; } } - + if (size != -1) { size = lastOffset; } } } - + if (size != -1 && ![[NSString alloc] initWithBytesNoCopy:(char *)[data bytes] length:size encoding:NSUTF8StringEncoding freeWhenDone:NO]) { size = -1; } - + return (int32_t)size; } @@ -1753,14 +1753,14 @@ static inline int32_t validate_dispatch_data_partial_string(NSData *data) { // This is a hack, and probably not optimal static inline int32_t validate_dispatch_data_partial_string(NSData *data) { static const int maxCodepointSize = 3; - + for (int i = 0; i < maxCodepointSize; i++) { NSString *str = [[NSString alloc] initWithBytesNoCopy:(char *)data.bytes length:data.length - i encoding:NSUTF8StringEncoding freeWhenDone:NO]; if (str) { return (int)(data.length - i); } } - + return -1; } |