mirror of
https://github.com/status-im/react-native.git
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1076f4a172
Summary: public Added RCTDataRequestHandler, which is responsible for loading data URLs. This moves the logic for data URL handling out of RCTImageDownloader (no longer needed) and into the RCTNetwork library, where it makes more sense. This also means that it is now possible to load data URLs via XHR, and use them for purposes other than just images. Reviewed By: javache Differential Revision: D2540964 fb-gh-sync-id: 4f0418bd6b9186f047cc8297276bb970795af104
91 lines
2.6 KiB
Objective-C
91 lines
2.6 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 "RCTFileRequestHandler.h"
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#import <MobileCoreServices/MobileCoreServices.h>
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#import "RCTUtils.h"
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@implementation RCTFileRequestHandler
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{
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NSOperationQueue *_fileQueue;
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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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[_fileQueue cancelAllOperations];
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_fileQueue = nil;
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}
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- (BOOL)canHandleRequest:(NSURLRequest *)request
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{
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return
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[request.URL.scheme caseInsensitiveCompare:@"file"] == NSOrderedSame
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&& !RCTIsXCAssetURL(request.URL);
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}
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- (NSOperation *)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 (!_fileQueue) {
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_fileQueue = [NSOperationQueue new];
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_fileQueue.maxConcurrentOperationCount = 4;
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}
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__block NSBlockOperation *op = [NSBlockOperation blockOperationWithBlock:^{
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// Get content length
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NSError *error = nil;
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NSFileManager *fileManager = [NSFileManager new];
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NSDictionary *fileAttributes = [fileManager attributesOfItemAtPath:request.URL.path error:&error];
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if (error) {
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[delegate URLRequest:op didCompleteWithError:error];
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return;
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}
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// Get mime type
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NSString *fileExtension = [request.URL pathExtension];
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NSString *UTI = (__bridge_transfer NSString *)UTTypeCreatePreferredIdentifierForTag(
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kUTTagClassFilenameExtension, (__bridge CFStringRef)fileExtension, NULL);
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NSString *contentType = (__bridge_transfer NSString *)UTTypeCopyPreferredTagWithClass(
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(__bridge CFStringRef)UTI, kUTTagClassMIMEType);
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// Send response
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NSURLResponse *response = [[NSURLResponse alloc] initWithURL:request.URL
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MIMEType:contentType
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expectedContentLength:[fileAttributes[NSFileSize] ?: @-1 integerValue]
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textEncodingName:nil];
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[delegate URLRequest:op didReceiveResponse:response];
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// Load data
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NSData *data = [NSData dataWithContentsOfURL:request.URL
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options:NSDataReadingMappedIfSafe
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error:&error];
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if (data) {
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[delegate URLRequest:op didReceiveData:data];
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}
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[delegate URLRequest:op didCompleteWithError:error];
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}];
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[_fileQueue addOperation:op];
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return op;
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}
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- (void)cancelRequest:(NSOperation *)op
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{
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[op cancel];
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}
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@end
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