Nextrek
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// AFURLConnectionOperation.m // // Copyright (c) 2011 Gowalla (http://gowalla.com/) // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. #import "AFURLConnectionOperation.h" #if __IPHONE_OS_VERSION_MIN_REQUIRED #import <UIKit/UIKit.h> #endif typedef enum { AFOperationPausedState = -1, AFOperationReadyState = 1, AFOperationExecutingState = 2, AFOperationFinishedState = 3, } _AFOperationState; typedef signed short AFOperationState; #if __IPHONE_OS_VERSION_MIN_REQUIRED typedef UIBackgroundTaskIdentifier AFBackgroundTaskIdentifier; #else typedef id AFBackgroundTaskIdentifier; #endif static NSString * const kAFNetworkingLockName = @"com.alamofire.networking.operation.lock"; NSString * const AFNetworkingErrorDomain = @"AFNetworkingErrorDomain"; NSString * const AFNetworkingOperationFailingURLRequestErrorKey = @"AFNetworkingOperationFailingURLRequestErrorKey"; NSString * const AFNetworkingOperationFailingURLResponseErrorKey = @"AFNetworkingOperationFailingURLResponseErrorKey"; NSString * const AFNetworkingOperationDidStartNotification = @"com.alamofire.networking.operation.start"; NSString * const AFNetworkingOperationDidFinishNotification = @"com.alamofire.networking.operation.finish"; typedef void (^AFURLConnectionOperationProgressBlock)(NSUInteger bytes, long long totalBytes, long long totalBytesExpected); typedef BOOL (^AFURLConnectionOperationAuthenticationAgainstProtectionSpaceBlock)(NSURLConnection *connection, NSURLProtectionSpace *protectionSpace); typedef void (^AFURLConnectionOperationAuthenticationChallengeBlock)(NSURLConnection *connection, NSURLAuthenticationChallenge *challenge); typedef NSCachedURLResponse * (^AFURLConnectionOperationCacheResponseBlock)(NSURLConnection *connection, NSCachedURLResponse *cachedResponse); typedef NSURLRequest * (^AFURLConnectionOperationRedirectResponseBlock)(NSURLConnection *connection, NSURLRequest *request, NSURLResponse *redirectResponse); static inline NSString * AFKeyPathFromOperationState(AFOperationState state) { switch (state) { case AFOperationReadyState: return @"isReady"; case AFOperationExecutingState: return @"isExecuting"; case AFOperationFinishedState: return @"isFinished"; case AFOperationPausedState: return @"isPaused"; default: return @"state"; } } static inline BOOL AFStateTransitionIsValid(AFOperationState fromState, AFOperationState toState, BOOL isCancelled) { switch (fromState) { case AFOperationReadyState: switch (toState) { case AFOperationPausedState: case AFOperationExecutingState: return YES; case AFOperationFinishedState: return isCancelled; default: return NO; } case AFOperationExecutingState: switch (toState) { case AFOperationPausedState: case AFOperationFinishedState: return YES; default: return NO; } case AFOperationFinishedState: return NO; case AFOperationPausedState: return toState == AFOperationReadyState; default: return YES; } } @interface AFURLConnectionOperation () @property (readwrite, nonatomic, assign) AFOperationState state; @property (readwrite, nonatomic, assign, getter = isCancelled) BOOL cancelled; @property (readwrite, nonatomic, retain) NSRecursiveLock *lock; @property (readwrite, nonatomic, retain) NSURLConnection *connection; @property (readwrite, nonatomic, retain) NSURLRequest *request; @property (readwrite, nonatomic, retain) NSURLResponse *response; @property (readwrite, nonatomic, retain) NSError *error; @property (readwrite, nonatomic, retain) NSData *responseData; @property (readwrite, nonatomic, copy) NSString *responseString; @property (readwrite, nonatomic, assign) long long totalBytesRead; @property (readwrite, nonatomic, assign) AFBackgroundTaskIdentifier backgroundTaskIdentifier; @property (readwrite, nonatomic, copy) AFURLConnectionOperationProgressBlock uploadProgress; @property (readwrite, nonatomic, copy) AFURLConnectionOperationProgressBlock downloadProgress; @property (readwrite, nonatomic, copy) AFURLConnectionOperationAuthenticationAgainstProtectionSpaceBlock authenticationAgainstProtectionSpace; @property (readwrite, nonatomic, copy) AFURLConnectionOperationAuthenticationChallengeBlock authenticationChallenge; @property (readwrite, nonatomic, copy) AFURLConnectionOperationCacheResponseBlock cacheResponse; @property (readwrite, nonatomic, copy) AFURLConnectionOperationRedirectResponseBlock redirectResponse; - (void)operationDidStart; - (void)finish; - (void)cancelConnection; @end @implementation AFURLConnectionOperation @synthesize state = _state; @synthesize cancelled = _cancelled; @synthesize connection = _connection; @synthesize runLoopModes = _runLoopModes; @synthesize request = _request; @synthesize response = _response; @synthesize error = _error; @synthesize responseData = _responseData; @synthesize responseString = _responseString; @synthesize totalBytesRead = _totalBytesRead; @dynamic inputStream; @synthesize outputStream = _outputStream; @synthesize backgroundTaskIdentifier = _backgroundTaskIdentifier; @synthesize uploadProgress = _uploadProgress; @synthesize downloadProgress = _downloadProgress; @synthesize authenticationAgainstProtectionSpace = _authenticationAgainstProtectionSpace; @synthesize authenticationChallenge = _authenticationChallenge; @synthesize cacheResponse = _cacheResponse; @synthesize redirectResponse = _redirectResponse; @synthesize lock = _lock; + (void)networkRequestThreadEntryPoint:(id)__unused object { do { @autoreleasepool { [[NSRunLoop currentRunLoop] run]; } } while (YES); } + (NSThread *)networkRequestThread { static NSThread *_networkRequestThread = nil; static dispatch_once_t oncePredicate; dispatch_once(&oncePredicate, ^{ _networkRequestThread = [[NSThread alloc] initWithTarget:self selector:@selector(networkRequestThreadEntryPoint:) object:nil]; [_networkRequestThread start]; }); return _networkRequestThread; } - (id)initWithRequest:(NSURLRequest *)urlRequest { self = [super init]; if (!self) { return nil; } self.lock = [[[NSRecursiveLock alloc] init] autorelease]; self.lock.name = kAFNetworkingLockName; self.runLoopModes = [NSSet setWithObject:NSRunLoopCommonModes]; self.request = urlRequest; self.outputStream = [NSOutputStream outputStreamToMemory]; NSRunLoop *runLoop = [NSRunLoop currentRunLoop]; for (NSString *runLoopMode in self.runLoopModes) { [self.outputStream scheduleInRunLoop:runLoop forMode:runLoopMode]; } self.state = AFOperationReadyState; return self; } - (void)dealloc { [_lock release]; [_runLoopModes release]; [_request release]; [_response release]; [_error release]; [_responseData release]; [_responseString release]; if (_outputStream) { [_outputStream close]; [_outputStream release]; _outputStream = nil; } #if __IPHONE_OS_VERSION_MIN_REQUIRED if (_backgroundTaskIdentifier) { [[UIApplication sharedApplication] endBackgroundTask:_backgroundTaskIdentifier]; _backgroundTaskIdentifier = UIBackgroundTaskInvalid; } #endif [_uploadProgress release]; [_downloadProgress release]; [_authenticationChallenge release]; [_authenticationAgainstProtectionSpace release]; [_cacheResponse release]; [_redirectResponse release]; [_connection release]; [super dealloc]; } - (NSString *)description { return [NSString stringWithFormat:@"<%@: %p, state: %@, cancelled: %@ request: %@, response: %@>", NSStringFromClass([self class]), self, AFKeyPathFromOperationState(self.state), ([self isCancelled] ? @"YES" : @"NO"), self.request, self.response]; } - (void)setCompletionBlock:(void (^)(void))block { [self.lock lock]; if (!block) { [super setCompletionBlock:nil]; } else { __block id _blockSelf = self; [super setCompletionBlock:^ { block(); [_blockSelf setCompletionBlock:nil]; }]; } [self.lock unlock]; } - (NSInputStream *)inputStream { return self.request.HTTPBodyStream; } - (void)setInputStream:(NSInputStream *)inputStream { [self willChangeValueForKey:@"inputStream"]; NSMutableURLRequest *mutableRequest = [[self.request mutableCopy] autorelease]; mutableRequest.HTTPBodyStream = inputStream; self.request = mutableRequest; [self didChangeValueForKey:@"inputStream"]; } - (void)setOutputStream:(NSOutputStream *)outputStream { if (_outputStream == outputStream) { return; } [self willChangeValueForKey:@"outputStream"]; [outputStream retain]; if (_outputStream) { [_outputStream close]; [_outputStream release]; } _outputStream = outputStream; [self didChangeValueForKey:@"outputStream"]; } #if __IPHONE_OS_VERSION_MIN_REQUIRED - (void)setShouldExecuteAsBackgroundTaskWithExpirationHandler:(void (^)(void))handler { [self.lock lock]; if (!self.backgroundTaskIdentifier) { UIApplication *application = [UIApplication sharedApplication]; self.backgroundTaskIdentifier = [application beginBackgroundTaskWithExpirationHandler:^{ if (handler) { handler(); } [self cancel]; [application endBackgroundTask:self.backgroundTaskIdentifier]; self.backgroundTaskIdentifier = UIBackgroundTaskInvalid; }]; } [self.lock unlock]; } #endif - (void)setUploadProgressBlock:(void (^)(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite))block { self.uploadProgress = block; } - (void)setDownloadProgressBlock:(void (^)(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead))block { self.downloadProgress = block; } - (void)setAuthenticationAgainstProtectionSpaceBlock:(BOOL (^)(NSURLConnection *, NSURLProtectionSpace *))block { self.authenticationAgainstProtectionSpace = block; } - (void)setAuthenticationChallengeBlock:(void (^)(NSURLConnection *connection, NSURLAuthenticationChallenge *challenge))block { self.authenticationChallenge = block; } - (void)setCacheResponseBlock:(NSCachedURLResponse * (^)(NSURLConnection *connection, NSCachedURLResponse *cachedResponse))block { self.cacheResponse = block; } - (void)setRedirectResponseBlock:(NSURLRequest * (^)(NSURLConnection *connection, NSURLRequest *request, NSURLResponse *redirectResponse))block { self.redirectResponse = block; } - (void)setState:(AFOperationState)state { [self.lock lock]; if (AFStateTransitionIsValid(self.state, state, [self isCancelled])) { NSString *oldStateKey = AFKeyPathFromOperationState(self.state); NSString *newStateKey = AFKeyPathFromOperationState(state); [self willChangeValueForKey:newStateKey]; [self willChangeValueForKey:oldStateKey]; _state = state; [self didChangeValueForKey:oldStateKey]; [self didChangeValueForKey:newStateKey]; switch (state) { case AFOperationExecutingState: [[NSNotificationCenter defaultCenter] postNotificationName:AFNetworkingOperationDidStartNotification object:self]; break; case AFOperationFinishedState: [[NSNotificationCenter defaultCenter] postNotificationName:AFNetworkingOperationDidFinishNotification object:self]; break; default: break; } } [self.lock unlock]; } - (NSString *)responseString { [self.lock lock]; if (!_responseString && self.response && self.responseData) { NSStringEncoding textEncoding = NSUTF8StringEncoding; if (self.response.textEncodingName) { textEncoding = CFStringConvertEncodingToNSStringEncoding(CFStringConvertIANACharSetNameToEncoding((CFStringRef)self.response.textEncodingName)); } self.responseString = [[[NSString alloc] initWithData:self.responseData encoding:textEncoding] autorelease]; } [self.lock unlock]; return _responseString; } - (void)pause { if ([self isPaused] || [self isFinished] || [self isCancelled]) { return; } [self.lock lock]; if ([self isExecuting]) { [self.connection performSelector:@selector(cancel) onThread:[[self class] networkRequestThread] withObject:nil waitUntilDone:NO modes:[self.runLoopModes allObjects]]; [[NSNotificationCenter defaultCenter] postNotificationName:AFNetworkingOperationDidFinishNotification object:self]; } self.state = AFOperationPausedState; [self.lock unlock]; } - (BOOL)isPaused { return self.state == AFOperationPausedState; } - (void)resume { if (![self isPaused]) { return; } [self.lock lock]; self.state = AFOperationReadyState; [self start]; [self.lock unlock]; } #pragma mark - NSOperation - (BOOL)isReady { return self.state == AFOperationReadyState && [super isReady]; } - (BOOL)isExecuting { return self.state == AFOperationExecutingState; } - (BOOL)isFinished { return self.state == AFOperationFinishedState; } - (BOOL)isConcurrent { return YES; } - (void)start { [self.lock lock]; if ([self isReady]) { self.state = AFOperationExecutingState; [self performSelector:@selector(operationDidStart) onThread:[[self class] networkRequestThread] withObject:nil waitUntilDone:NO modes:[self.runLoopModes allObjects]]; } [self.lock unlock]; } - (void)operationDidStart { [self.lock lock]; if ([self isCancelled]) { [self finish]; } else { self.connection = [[[NSURLConnection alloc] initWithRequest:self.request delegate:self startImmediately:NO] autorelease]; NSRunLoop *runLoop = [NSRunLoop currentRunLoop]; for (NSString *runLoopMode in self.runLoopModes) { [self.connection scheduleInRunLoop:runLoop forMode:runLoopMode]; [self.outputStream scheduleInRunLoop:runLoop forMode:runLoopMode]; } [self.connection start]; } [self.lock unlock]; } - (void)finish { self.state = AFOperationFinishedState; } - (void)cancel { [self.lock lock]; if (![self isFinished] && ![self isCancelled]) { [self willChangeValueForKey:@"isCancelled"]; _cancelled = YES; [super cancel]; [self didChangeValueForKey:@"isCancelled"]; // Cancel the connection on the thread it runs on to prevent race conditions [self performSelector:@selector(cancelConnection) onThread:[[self class] networkRequestThread] withObject:nil waitUntilDone:NO modes:[self.runLoopModes allObjects]]; } [self.lock unlock]; } - (void)cancelConnection { if (self.connection) { [self.connection cancel]; // Manually send this delegate message since `[self.connection cancel]` causes the connection to never send another message to its delegate NSDictionary *userInfo = nil; if ([self.request URL]) { userInfo = [NSDictionary dictionaryWithObject:[self.request URL] forKey:NSURLErrorFailingURLErrorKey]; } [self performSelector:@selector(connection:didFailWithError:) withObject:self.connection withObject:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorCancelled userInfo:userInfo]]; } } #pragma mark - NSURLConnectionDelegate - (BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace { #ifdef _AFNETWORKING_ALLOW_INVALID_SSL_CERTIFICATES_ if ([protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust]) { return YES; } #endif if (self.authenticationAgainstProtectionSpace) { return self.authenticationAgainstProtectionSpace(connection, protectionSpace); } else if ([protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust] || [protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodClientCertificate]) { return NO; } else { return YES; } } - (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge { #ifdef _AFNETWORKING_ALLOW_INVALID_SSL_CERTIFICATES_ if ([challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust]) { [challenge.sender useCredential:[NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust] forAuthenticationChallenge:challenge]; return; } #endif if (self.authenticationChallenge) { self.authenticationChallenge(connection, challenge); } else { if ([challenge previousFailureCount] == 0) { NSURLCredential *credential = nil; NSString *username = [(NSString *)CFURLCopyUserName((CFURLRef)[self.request URL]) autorelease]; NSString *password = [(NSString *)CFURLCopyPassword((CFURLRef)[self.request URL]) autorelease]; if (username && password) { credential = [NSURLCredential credentialWithUser:username password:password persistence:NSURLCredentialPersistenceNone]; } else if (username) { credential = [[[NSURLCredentialStorage sharedCredentialStorage] credentialsForProtectionSpace:[challenge protectionSpace]] objectForKey:username]; } else { credential = [[NSURLCredentialStorage sharedCredentialStorage] defaultCredentialForProtectionSpace:[challenge protectionSpace]]; } if (credential) { [[challenge sender] useCredential:credential forAuthenticationChallenge:challenge]; } else { [[challenge sender] continueWithoutCredentialForAuthenticationChallenge:challenge]; } } else { [[challenge sender] continueWithoutCredentialForAuthenticationChallenge:challenge]; } } } - (NSURLRequest *)connection:(NSURLConnection *)connection willSendRequest:(NSURLRequest *)request redirectResponse:(NSURLResponse *)redirectResponse { if (self.redirectResponse) { return self.redirectResponse(connection, request, redirectResponse); } else { return request; } } - (void)connection:(NSURLConnection *)__unused connection didSendBodyData:(NSInteger)bytesWritten totalBytesWritten:(NSInteger)totalBytesWritten totalBytesExpectedToWrite:(NSInteger)totalBytesExpectedToWrite { if (self.uploadProgress) { dispatch_async(dispatch_get_main_queue(), ^{ self.uploadProgress(bytesWritten, totalBytesWritten, totalBytesExpectedToWrite); }); } } - (void)connection:(NSURLConnection *)__unused connection didReceiveResponse:(NSURLResponse *)response { self.response = response; [self.outputStream open]; } - (void)connection:(NSURLConnection *)__unused connection didReceiveData:(NSData *)data { self.totalBytesRead += [data length]; if ([self.outputStream hasSpaceAvailable]) { const uint8_t *dataBuffer = (uint8_t *) [data bytes]; [self.outputStream write:&dataBuffer[0] maxLength:[data length]]; } if (self.downloadProgress) { dispatch_async(dispatch_get_main_queue(), ^{ self.downloadProgress([data length], self.totalBytesRead, self.response.expectedContentLength); }); } } - (void)connectionDidFinishLoading:(NSURLConnection *)__unused connection { self.responseData = [self.outputStream propertyForKey:NSStreamDataWrittenToMemoryStreamKey]; [self.outputStream close]; [self finish]; self.connection = nil; } - (void)connection:(NSURLConnection *)__unused connection didFailWithError:(NSError *)error { self.error = error; [self.outputStream close]; [self finish]; self.connection = nil; } - (NSCachedURLResponse *)connection:(NSURLConnection *)connection willCacheResponse:(NSCachedURLResponse *)cachedResponse { if (self.cacheResponse) { return self.cacheResponse(connection, cachedResponse); } else { if ([self isCancelled]) { return nil; } return cachedResponse; } } #pragma mark - NSCoding - (id)initWithCoder:(NSCoder *)aDecoder { NSURLRequest *request = [aDecoder decodeObjectForKey:@"request"]; self = [self initWithRequest:request]; if (!self) { return nil; } self.state = [aDecoder decodeIntegerForKey:@"state"]; self.cancelled = [aDecoder decodeBoolForKey:@"isCancelled"]; self.response = [aDecoder decodeObjectForKey:@"response"]; self.error = [aDecoder decodeObjectForKey:@"error"]; self.responseData = [aDecoder decodeObjectForKey:@"responseData"]; self.totalBytesRead = [[aDecoder decodeObjectForKey:@"totalBytesRead"] longLongValue]; return self; } - (void)encodeWithCoder:(NSCoder *)aCoder { [self pause]; [aCoder encodeObject:self.request forKey:@"request"]; switch (self.state) { case AFOperationExecutingState: case AFOperationPausedState: [aCoder encodeInteger:AFOperationReadyState forKey:@"state"]; break; default: [aCoder encodeInteger:self.state forKey:@"state"]; break; } [aCoder encodeBool:[self isCancelled] forKey:@"isCancelled"]; [aCoder encodeObject:self.response forKey:@"response"]; [aCoder encodeObject:self.error forKey:@"error"]; [aCoder encodeObject:self.responseData forKey:@"responseData"]; [aCoder encodeObject:[NSNumber numberWithLongLong:self.totalBytesRead] forKey:@"totalBytesRead"]; } #pragma mark - NSCopying - (id)copyWithZone:(NSZone *)zone { AFURLConnectionOperation *operation = [[[self class] allocWithZone:zone] initWithRequest:self.request]; operation.uploadProgress = self.uploadProgress; operation.downloadProgress = self.downloadProgress; operation.authenticationAgainstProtectionSpace = self.authenticationAgainstProtectionSpace; operation.authenticationChallenge = self.authenticationChallenge; operation.cacheResponse = self.cacheResponse; operation.redirectResponse = self.redirectResponse; return operation; } @end |
Commits for Nextrek/iOS/PocketVision/PocketVision/Shared/Networking/ExternalLibraries/AFNetworking/AFURLConnectionOperation.m
Revision | Author | Commited | Message |
---|---|---|---|
62 | FAquili | Sat 18 Jan, 2014 16:39:26 +0000 | PocketVision 1.0 |