1 // 2 // Copyright 2012 Square Inc. 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 // 16 17 #import <Foundation/Foundation.h> 18 #import <Security/SecCertificate.h> 19 20 typedef enum { 21 SR_CONNECTING = 0, 22 SR_OPEN = 1, 23 SR_CLOSING = 2, 24 SR_CLOSED = 3, 25 } SRReadyState; 26 27 typedef enum SRStatusCode : NSInteger { 28 SRStatusCodeNormal = 1000, 29 SRStatusCodeGoingAway = 1001, 30 SRStatusCodeProtocolError = 1002, 31 SRStatusCodeUnhandledType = 1003, 32 // 1004 reserved. 33 SRStatusNoStatusReceived = 1005, 34 // 1004-1006 reserved. 35 SRStatusCodeInvalidUTF8 = 1007, 36 SRStatusCodePolicyViolated = 1008, 37 SRStatusCodeMessageTooBig = 1009, 38 } SRStatusCode; 39 40 @class SRWebSocket; 41 42 extern NSString *const SRWebSocketErrorDomain; 43 extern NSString *const SRHTTPResponseErrorKey; 44 45 #pragma mark - SRWebSocketDelegate 46 47 @protocol SRWebSocketDelegate; 48 49 #pragma mark - SRWebSocket 50 51 @interface SRWebSocket : NSObject <NSStreamDelegate> 52 53 @property (nonatomic, weak) id <SRWebSocketDelegate> delegate; 54 55 @property (nonatomic, readonly) SRReadyState readyState; 56 @property (nonatomic, readonly, retain) NSURL *url; 57 58 // This returns the negotiated protocol. 59 // It will be nil until after the handshake completes. 60 @property (nonatomic, readonly, copy) NSString *protocol; 61 62 // Protocols should be an array of strings that turn into Sec-WebSocket-Protocol. 63 - (id)initWithURLRequest:(NSURLRequest *)request protocols:(NSArray *)protocols; 64 - (id)initWithURLRequest:(NSURLRequest *)request; 65 66 // Some helper constructors. 67 - (id)initWithURL:(NSURL *)url protocols:(NSArray *)protocols; 68 - (id)initWithURL:(NSURL *)url; 69 70 // Delegate queue will be dispatch_main_queue by default. 71 // You cannot set both OperationQueue and dispatch_queue. 72 - (void)setDelegateOperationQueue:(NSOperationQueue*) queue; 73 - (void)setDelegateDispatchQueue:(dispatch_queue_t) queue; 74 75 // By default, it will schedule itself on +[NSRunLoop SR_networkRunLoop] using defaultModes. 76 - (void)scheduleInRunLoop:(NSRunLoop *)aRunLoop forMode:(NSString *)mode; 77 - (void)unscheduleFromRunLoop:(NSRunLoop *)aRunLoop forMode:(NSString *)mode; 78 79 // SRWebSockets are intended for one-time-use only. Open should be called once and only once. 80 - (void)open; 81 82 - (void)close; 83 - (void)closeWithCode:(NSInteger)code reason:(NSString *)reason; 84 85 // Send a UTF8 String or Data. 86 - (void)send:(id)data; 87 88 // Send Data (can be nil) in a ping message. 89 - (void)sendPing:(NSData *)data; 90 91 @end 92 93 #pragma mark - SRWebSocketDelegate 94 95 @protocol SRWebSocketDelegate <NSObject> 96 97 // message will either be an NSString if the server is using text 98 // or NSData if the server is using binary. 99 - (void)webSocket:(SRWebSocket *)webSocket didReceiveMessage:(id)message; 100 101 @optional 102 103 - (void)webSocketDidOpen:(SRWebSocket *)webSocket; 104 - (void)webSocket:(SRWebSocket *)webSocket didFailWithError:(NSError *)error; 105 - (void)webSocket:(SRWebSocket *)webSocket didCloseWithCode:(NSInteger)code reason:(NSString *)reason wasClean:(BOOL)wasClean; 106 - (void)webSocket:(SRWebSocket *)webSocket didReceivePong:(NSData *)pongPayload; 107 108 @end 109 110 #pragma mark - NSURLRequest (CertificateAdditions) 111 112 @interface NSURLRequest (CertificateAdditions) 113 114 @property (nonatomic, retain, readonly) NSArray *SR_SSLPinnedCertificates; 115 116 @end 117 118 #pragma mark - NSMutableURLRequest (CertificateAdditions) 119 120 @interface NSMutableURLRequest (CertificateAdditions) 121 122 @property (nonatomic, retain) NSArray *SR_SSLPinnedCertificates; 123 124 @end 125 126 #pragma mark - NSRunLoop (SRWebSocket) 127 128 @interface NSRunLoop (SRWebSocket) 129 130 + (NSRunLoop *)SR_networkRunLoop; 131 132 @end 133