13ec70cc8f
This seems to be the most proper data type for this parameter. What gets passed in for uploadProgress is an NSInteger (guaranteed to be positive), and [NSData length], which is an NSUInteger, for downloadProgress.
665 lines
23 KiB
Objective-C
665 lines
23 KiB
Objective-C
// AFURLConnectionOperation.m
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//
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// Copyright (c) 2011 Gowalla (http://gowalla.com/)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#import "AFURLConnectionOperation.h"
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#if __IPHONE_OS_VERSION_MIN_REQUIRED
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#import <UIKit/UIKit.h>
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#endif
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typedef enum {
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AFOperationPausedState = -1,
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AFOperationReadyState = 1,
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AFOperationExecutingState = 2,
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AFOperationFinishedState = 3,
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} _AFOperationState;
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typedef signed short AFOperationState;
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#if __IPHONE_OS_VERSION_MIN_REQUIRED
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typedef UIBackgroundTaskIdentifier AFBackgroundTaskIdentifier;
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#else
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typedef id AFBackgroundTaskIdentifier;
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#endif
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static NSString * const kAFNetworkingLockName = @"com.alamofire.networking.operation.lock";
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NSString * const AFNetworkingErrorDomain = @"com.alamofire.networking.error";
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NSString * const AFNetworkingOperationDidStartNotification = @"com.alamofire.networking.operation.start";
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NSString * const AFNetworkingOperationDidFinishNotification = @"com.alamofire.networking.operation.finish";
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typedef void (^AFURLConnectionOperationProgressBlock)(NSUInteger bytes, long long totalBytes, long long totalBytesExpected);
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typedef BOOL (^AFURLConnectionOperationAuthenticationAgainstProtectionSpaceBlock)(NSURLConnection *connection, NSURLProtectionSpace *protectionSpace);
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typedef void (^AFURLConnectionOperationAuthenticationChallengeBlock)(NSURLConnection *connection, NSURLAuthenticationChallenge *challenge);
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typedef NSCachedURLResponse * (^AFURLConnectionOperationCacheResponseBlock)(NSURLConnection *connection, NSCachedURLResponse *cachedResponse);
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typedef NSURLRequest * (^AFURLConnectionOperationRedirectResponseBlock)(NSURLConnection *connection, NSURLRequest *request, NSURLResponse *redirectResponse);
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static inline NSString * AFKeyPathFromOperationState(AFOperationState state) {
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switch (state) {
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case AFOperationReadyState:
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return @"isReady";
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case AFOperationExecutingState:
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return @"isExecuting";
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case AFOperationFinishedState:
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return @"isFinished";
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case AFOperationPausedState:
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return @"isPaused";
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default:
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return @"state";
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}
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}
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static inline BOOL AFStateTransitionIsValid(AFOperationState fromState, AFOperationState toState, BOOL isCancelled) {
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switch (fromState) {
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case AFOperationReadyState:
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switch (toState) {
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case AFOperationPausedState:
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case AFOperationExecutingState:
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return YES;
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case AFOperationFinishedState:
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return isCancelled;
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default:
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return NO;
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}
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case AFOperationExecutingState:
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switch (toState) {
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case AFOperationPausedState:
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case AFOperationFinishedState:
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return YES;
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default:
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return NO;
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}
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case AFOperationFinishedState:
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return NO;
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case AFOperationPausedState:
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return toState == AFOperationReadyState;
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default:
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return YES;
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}
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}
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@interface AFURLConnectionOperation ()
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@property (readwrite, nonatomic, assign) AFOperationState state;
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@property (readwrite, nonatomic, assign, getter = isCancelled) BOOL cancelled;
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@property (readwrite, nonatomic, retain) NSRecursiveLock *lock;
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@property (readwrite, nonatomic, retain) NSURLConnection *connection;
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@property (readwrite, nonatomic, retain) NSURLRequest *request;
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@property (readwrite, nonatomic, retain) NSURLResponse *response;
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@property (readwrite, nonatomic, retain) NSError *error;
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@property (readwrite, nonatomic, retain) NSData *responseData;
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@property (readwrite, nonatomic, copy) NSString *responseString;
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@property (readwrite, nonatomic, assign) long long totalBytesRead;
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@property (readwrite, nonatomic, assign) AFBackgroundTaskIdentifier backgroundTaskIdentifier;
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@property (readwrite, nonatomic, copy) AFURLConnectionOperationProgressBlock uploadProgress;
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@property (readwrite, nonatomic, copy) AFURLConnectionOperationProgressBlock downloadProgress;
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@property (readwrite, nonatomic, copy) AFURLConnectionOperationAuthenticationAgainstProtectionSpaceBlock authenticationAgainstProtectionSpace;
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@property (readwrite, nonatomic, copy) AFURLConnectionOperationAuthenticationChallengeBlock authenticationChallenge;
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@property (readwrite, nonatomic, copy) AFURLConnectionOperationCacheResponseBlock cacheResponse;
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@property (readwrite, nonatomic, copy) AFURLConnectionOperationRedirectResponseBlock redirectResponse;
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- (void)operationDidStart;
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- (void)finish;
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- (void)cancelConnection;
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@end
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@implementation AFURLConnectionOperation
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@synthesize state = _state;
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@synthesize cancelled = _cancelled;
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@synthesize connection = _connection;
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@synthesize runLoopModes = _runLoopModes;
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@synthesize request = _request;
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@synthesize response = _response;
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@synthesize error = _error;
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@synthesize responseData = _responseData;
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@synthesize responseString = _responseString;
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@synthesize totalBytesRead = _totalBytesRead;
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@dynamic inputStream;
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@synthesize outputStream = _outputStream;
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@synthesize backgroundTaskIdentifier = _backgroundTaskIdentifier;
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@synthesize uploadProgress = _uploadProgress;
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@synthesize downloadProgress = _downloadProgress;
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@synthesize authenticationAgainstProtectionSpace = _authenticationAgainstProtectionSpace;
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@synthesize authenticationChallenge = _authenticationChallenge;
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@synthesize cacheResponse = _cacheResponse;
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@synthesize redirectResponse = _redirectResponse;
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@synthesize lock = _lock;
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+ (void)networkRequestThreadEntryPoint:(id)__unused object {
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do {
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@autoreleasepool {
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[[NSRunLoop currentRunLoop] run];
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}
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} while (YES);
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}
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+ (NSThread *)networkRequestThread {
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static NSThread *_networkRequestThread = nil;
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static dispatch_once_t oncePredicate;
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dispatch_once(&oncePredicate, ^{
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_networkRequestThread = [[NSThread alloc] initWithTarget:self selector:@selector(networkRequestThreadEntryPoint:) object:nil];
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[_networkRequestThread start];
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});
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return _networkRequestThread;
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}
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- (id)initWithRequest:(NSURLRequest *)urlRequest {
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self = [super init];
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if (!self) {
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return nil;
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}
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self.lock = [[[NSRecursiveLock alloc] init] autorelease];
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self.lock.name = kAFNetworkingLockName;
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self.runLoopModes = [NSSet setWithObject:NSRunLoopCommonModes];
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self.request = urlRequest;
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self.outputStream = [NSOutputStream outputStreamToMemory];
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self.state = AFOperationReadyState;
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return self;
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}
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- (void)dealloc {
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[_lock release];
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[_runLoopModes release];
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[_request release];
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[_response release];
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[_error release];
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[_responseData release];
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[_responseString release];
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if (_outputStream) {
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[_outputStream close];
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[_outputStream release];
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_outputStream = nil;
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}
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#if __IPHONE_OS_VERSION_MIN_REQUIRED
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if (_backgroundTaskIdentifier) {
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[[UIApplication sharedApplication] endBackgroundTask:_backgroundTaskIdentifier];
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_backgroundTaskIdentifier = UIBackgroundTaskInvalid;
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}
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#endif
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[_uploadProgress release];
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[_downloadProgress release];
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[_authenticationChallenge release];
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[_authenticationAgainstProtectionSpace release];
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[_cacheResponse release];
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[_redirectResponse release];
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[_connection release];
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[super dealloc];
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}
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- (NSString *)description {
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return [NSString stringWithFormat:@"<%@: %p, state: %@, cancelled: %@ request: %@, response: %@>", NSStringFromClass([self class]), self, AFKeyPathFromOperationState(self.state), ([self isCancelled] ? @"YES" : @"NO"), self.request, self.response];
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}
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- (void)setCompletionBlock:(void (^)(void))block {
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[self.lock lock];
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if (!block) {
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[super setCompletionBlock:nil];
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} else {
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__block id _blockSelf = self;
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[super setCompletionBlock:^ {
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block();
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[_blockSelf setCompletionBlock:nil];
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}];
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}
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[self.lock unlock];
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}
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- (NSInputStream *)inputStream {
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return self.request.HTTPBodyStream;
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}
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- (void)setInputStream:(NSInputStream *)inputStream {
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[self willChangeValueForKey:@"inputStream"];
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NSMutableURLRequest *mutableRequest = [[self.request mutableCopy] autorelease];
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mutableRequest.HTTPBodyStream = inputStream;
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self.request = mutableRequest;
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[self didChangeValueForKey:@"inputStream"];
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}
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- (void)setOutputStream:(NSOutputStream *)outputStream {
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[self willChangeValueForKey:@"outputStream"];
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[outputStream retain];
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if (_outputStream) {
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[_outputStream close];
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[_outputStream release];
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}
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_outputStream = outputStream;
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[self didChangeValueForKey:@"outputStream"];
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NSRunLoop *runLoop = [NSRunLoop currentRunLoop];
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for (NSString *runLoopMode in self.runLoopModes) {
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[self.outputStream scheduleInRunLoop:runLoop forMode:runLoopMode];
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}
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}
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#if __IPHONE_OS_VERSION_MIN_REQUIRED
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- (void)setShouldExecuteAsBackgroundTaskWithExpirationHandler:(void (^)(void))handler {
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[self.lock lock];
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if (!self.backgroundTaskIdentifier) {
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UIApplication *application = [UIApplication sharedApplication];
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self.backgroundTaskIdentifier = [application beginBackgroundTaskWithExpirationHandler:^{
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if (handler) {
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handler();
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}
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[self cancel];
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[application endBackgroundTask:self.backgroundTaskIdentifier];
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self.backgroundTaskIdentifier = UIBackgroundTaskInvalid;
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}];
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}
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[self.lock unlock];
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}
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#endif
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- (void)setUploadProgressBlock:(void (^)(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite))block {
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self.uploadProgress = block;
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}
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- (void)setDownloadProgressBlock:(void (^)(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead))block {
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self.downloadProgress = block;
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}
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- (void)setAuthenticationAgainstProtectionSpaceBlock:(BOOL (^)(NSURLConnection *, NSURLProtectionSpace *))block {
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self.authenticationAgainstProtectionSpace = block;
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}
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- (void)setAuthenticationChallengeBlock:(void (^)(NSURLConnection *connection, NSURLAuthenticationChallenge *challenge))block {
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self.authenticationChallenge = block;
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}
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- (void)setCacheResponseBlock:(NSCachedURLResponse * (^)(NSURLConnection *connection, NSCachedURLResponse *cachedResponse))block {
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self.cacheResponse = block;
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}
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- (void)setRedirectResponseBlock:(NSURLRequest * (^)(NSURLConnection *connection, NSURLRequest *request, NSURLResponse *redirectResponse))block {
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self.redirectResponse = block;
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}
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- (void)setState:(AFOperationState)state {
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[self.lock lock];
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if (AFStateTransitionIsValid(self.state, state, [self isCancelled])) {
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NSString *oldStateKey = AFKeyPathFromOperationState(self.state);
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NSString *newStateKey = AFKeyPathFromOperationState(state);
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[self willChangeValueForKey:newStateKey];
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[self willChangeValueForKey:oldStateKey];
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_state = state;
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[self didChangeValueForKey:oldStateKey];
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[self didChangeValueForKey:newStateKey];
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switch (state) {
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case AFOperationExecutingState:
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[[NSNotificationCenter defaultCenter] postNotificationName:AFNetworkingOperationDidStartNotification object:self];
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break;
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case AFOperationFinishedState:
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[[NSNotificationCenter defaultCenter] postNotificationName:AFNetworkingOperationDidFinishNotification object:self];
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break;
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default:
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break;
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}
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}
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[self.lock unlock];
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}
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- (NSString *)responseString {
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[self.lock lock];
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if (!_responseString && self.response && self.responseData) {
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NSStringEncoding textEncoding = NSUTF8StringEncoding;
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if (self.response.textEncodingName) {
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textEncoding = CFStringConvertEncodingToNSStringEncoding(CFStringConvertIANACharSetNameToEncoding((CFStringRef)self.response.textEncodingName));
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}
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self.responseString = [[[NSString alloc] initWithData:self.responseData encoding:textEncoding] autorelease];
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}
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[self.lock unlock];
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return _responseString;
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}
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- (void)pause {
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if ([self isPaused] || [self isFinished] || [self isCancelled]) {
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return;
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}
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[self.lock lock];
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if ([self isExecuting]) {
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[self.connection performSelector:@selector(cancel) onThread:[[self class] networkRequestThread] withObject:nil waitUntilDone:NO modes:[self.runLoopModes allObjects]];
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[[NSNotificationCenter defaultCenter] postNotificationName:AFNetworkingOperationDidFinishNotification object:self];
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}
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self.state = AFOperationPausedState;
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[self.lock unlock];
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}
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- (BOOL)isPaused {
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return self.state == AFOperationPausedState;
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}
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- (void)resume {
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if (![self isPaused]) {
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return;
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}
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[self.lock lock];
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self.state = AFOperationReadyState;
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[self start];
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[self.lock unlock];
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}
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#pragma mark - NSOperation
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- (BOOL)isReady {
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return self.state == AFOperationReadyState && [super isReady];
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}
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- (BOOL)isExecuting {
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return self.state == AFOperationExecutingState;
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}
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- (BOOL)isFinished {
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return self.state == AFOperationFinishedState;
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}
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- (BOOL)isConcurrent {
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return YES;
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}
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- (void)start {
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[self.lock lock];
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if ([self isReady]) {
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self.state = AFOperationExecutingState;
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[self performSelector:@selector(operationDidStart) onThread:[[self class] networkRequestThread] withObject:nil waitUntilDone:NO modes:[self.runLoopModes allObjects]];
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}
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[self.lock unlock];
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}
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- (void)operationDidStart {
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[self.lock lock];
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if ([self isCancelled]) {
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[self finish];
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} else {
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self.connection = [[[NSURLConnection alloc] initWithRequest:self.request delegate:self startImmediately:NO] autorelease];
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NSRunLoop *runLoop = [NSRunLoop currentRunLoop];
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for (NSString *runLoopMode in self.runLoopModes) {
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[self.connection scheduleInRunLoop:runLoop forMode:runLoopMode];
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[self.outputStream scheduleInRunLoop:runLoop forMode:runLoopMode];
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}
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[self.connection start];
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}
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[self.lock unlock];
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}
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- (void)finish {
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self.state = AFOperationFinishedState;
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}
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- (void)cancel {
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[self.lock lock];
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if (![self isFinished] && ![self isCancelled]) {
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[self willChangeValueForKey:@"isCancelled"];
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_cancelled = YES;
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[super cancel];
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[self didChangeValueForKey:@"isCancelled"];
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// Cancel the connection on the thread it runs on to prevent race conditions
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[self performSelector:@selector(cancelConnection) onThread:[[self class] networkRequestThread] withObject:nil waitUntilDone:NO modes:[self.runLoopModes allObjects]];
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}
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[self.lock unlock];
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}
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- (void)cancelConnection {
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if (self.connection) {
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[self.connection cancel];
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// Manually send this delegate message since `[self.connection cancel]` causes the connection to never send another message to its delegate
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NSDictionary *userInfo = nil;
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if ([self.request URL]) {
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userInfo = [NSDictionary dictionaryWithObject:[self.request URL] forKey:NSURLErrorFailingURLErrorKey];
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}
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[self performSelector:@selector(connection:didFailWithError:) withObject:self.connection withObject:[NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorCancelled userInfo:userInfo]];
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}
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}
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#pragma mark - NSURLConnectionDelegate
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- (BOOL)connection:(NSURLConnection *)connection
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canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace
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{
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#ifdef _AFNETWORKING_ALLOW_INVALID_SSL_CERTIFICATES_
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if ([protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust]) {
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return YES;
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}
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#endif
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if (self.authenticationAgainstProtectionSpace) {
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return self.authenticationAgainstProtectionSpace(connection, protectionSpace);
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} else if ([protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust] || [protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodClientCertificate]) {
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return NO;
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} else {
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return YES;
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}
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}
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- (void)connection:(NSURLConnection *)connection
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didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge
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{
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#ifdef _AFNETWORKING_ALLOW_INVALID_SSL_CERTIFICATES_
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if ([challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust]) {
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[challenge.sender useCredential:[NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust] forAuthenticationChallenge:challenge];
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return;
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}
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#endif
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if (self.authenticationChallenge) {
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self.authenticationChallenge(connection, challenge);
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} else {
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if ([challenge previousFailureCount] == 0) {
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NSURLCredential *credential = nil;
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NSString *username = [(NSString *)CFURLCopyUserName((CFURLRef)[self.request URL]) autorelease];
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NSString *password = [(NSString *)CFURLCopyPassword((CFURLRef)[self.request URL]) autorelease];
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if (username && password) {
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credential = [NSURLCredential credentialWithUser:username password:password persistence:NSURLCredentialPersistenceNone];
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} else if (username) {
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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
|