This app provides monitoring and information features for the common freifunk user and the technical stuff of a freifunk community.
Code base is taken from a TUM Practical Course project and added here to see if Freifunk Altdorf can use it.
https://www.freifunk-altdorf.de
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90 lines
2.6 KiB
90 lines
2.6 KiB
/** |
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* Copyright (c) 2015-present, Facebook, Inc. |
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* |
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* This source code is licensed under the MIT license found in the |
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* LICENSE file in the root directory of this source tree. |
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*/ |
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#import "RCTFileRequestHandler.h" |
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#import <MobileCoreServices/MobileCoreServices.h> |
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#import <React/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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&& !RCTIsBundleAssetURL(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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__weak __block NSBlockOperation *weakOp; |
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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<NSString *, id> *fileAttributes = [fileManager attributesOfItemAtPath:request.URL.path error:&error]; |
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if (!fileAttributes) { |
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[delegate URLRequest:weakOp 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:weakOp 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:weakOp didReceiveData:data]; |
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} |
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[delegate URLRequest:weakOp didCompleteWithError:error]; |
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}]; |
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weakOp = op; |
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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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