114 lines
3.4 KiB
Objective-C
114 lines
3.4 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import "RCTHTTPRequestHandler.h"
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@interface RCTHTTPRequestHandler () <NSURLSessionDataDelegate>
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@end
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@implementation RCTHTTPRequestHandler
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{
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NSMapTable *_delegates;
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NSURLSession *_session;
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}
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RCT_EXPORT_MODULE()
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- (void)invalidate
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{
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[_session invalidateAndCancel];
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_session = nil;
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}
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- (BOOL)isValid
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{
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// if session == nil and delegates != nil, we've been invalidated
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return _session || !_delegates;
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}
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#pragma mark - NSURLRequestHandler
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- (BOOL)canHandleRequest:(NSURLRequest *)request
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{
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static NSSet<NSString *> *schemes = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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// technically, RCTHTTPRequestHandler can handle file:// as well,
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// but it's less efficient than using RCTFileRequestHandler
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schemes = [[NSSet alloc] initWithObjects:@"http", @"https", nil];
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});
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return [schemes containsObject:request.URL.scheme.lowercaseString];
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}
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- (NSURLSessionDataTask *)sendRequest:(NSURLRequest *)request
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withDelegate:(id<RCTURLRequestDelegate>)delegate
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{
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// Lazy setup
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if (!_session && [self isValid]) {
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NSOperationQueue *callbackQueue = [NSOperationQueue new];
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callbackQueue.maxConcurrentOperationCount = 1;
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NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
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_session = [NSURLSession sessionWithConfiguration:configuration
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delegate:self
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delegateQueue:callbackQueue];
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_delegates = [[NSMapTable alloc] initWithKeyOptions:NSPointerFunctionsStrongMemory
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valueOptions:NSPointerFunctionsStrongMemory
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capacity:0];
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}
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NSURLSessionDataTask *task = [_session dataTaskWithRequest:request];
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[_delegates setObject:delegate forKey:task];
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[task resume];
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return task;
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}
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- (void)cancelRequest:(NSURLSessionDataTask *)task
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{
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[task cancel];
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[_delegates removeObjectForKey:task];
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}
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#pragma mark - NSURLSession delegate
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- (void)URLSession:(NSURLSession *)session
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task:(NSURLSessionTask *)task
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didSendBodyData:(int64_t)bytesSent
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totalBytesSent:(int64_t)totalBytesSent
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totalBytesExpectedToSend:(int64_t)totalBytesExpectedToSend
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{
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[[_delegates objectForKey:task] URLRequest:task didSendDataWithProgress:totalBytesSent];
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}
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- (void)URLSession:(NSURLSession *)session
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dataTask:(NSURLSessionDataTask *)task
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didReceiveResponse:(NSURLResponse *)response
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completionHandler:(void (^)(NSURLSessionResponseDisposition))completionHandler
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{
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[[_delegates objectForKey:task] URLRequest:task didReceiveResponse:response];
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completionHandler(NSURLSessionResponseAllow);
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}
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- (void)URLSession:(NSURLSession *)session
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dataTask:(NSURLSessionDataTask *)task
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didReceiveData:(NSData *)data
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{
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[[_delegates objectForKey:task] URLRequest:task didReceiveData:data];
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}
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- (void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didCompleteWithError:(NSError *)error
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{
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[[_delegates objectForKey:task] URLRequest:task didCompleteWithError:error];
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[_delegates removeObjectForKey:task];
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}
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@end
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