74 lines
2.1 KiB
Mathematica
74 lines
2.1 KiB
Mathematica
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/**
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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 <Foundation/Foundation.h>
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#import "RCTBundleURLProcessor.h"
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@implementation RCTBundleURLProcessor
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NSDictionary *_qsAttributes;
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+ (id)sharedProcessor
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{
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static RCTBundleURLProcessor *sharedProcessor = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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sharedProcessor = [self new];
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});
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return sharedProcessor;
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}
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- (instancetype)init
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{
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// dictionary with additional query string attributes that will get appended
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// to the bundle URL
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_qsAttributes = [NSMutableDictionary new];
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return self;
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}
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- (NSString *)getQueryStringValue:(NSString *)attribute
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{
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return [_qsAttributes valueForKey:attribute];
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}
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- (void)setQueryStringValue:(NSString *)value forAttribute:(NSString *)attribute
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{
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[_qsAttributes setValue:value forKey:attribute];
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}
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- (NSURL *)process:(NSURL *)url
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{
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if (url.isFileURL || [_qsAttributes count] == 0) {
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return url;
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}
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// append either `?` or `&` depending on whether there are query string
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// attibutes or not.
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NSString *urlString = url.absoluteString;
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if ([urlString rangeOfString:@"?"].location == NSNotFound) {
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urlString = [urlString stringByAppendingString:@"?"];
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} else {
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urlString = [urlString stringByAppendingString:@"&"];
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}
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// array with new query string attributes
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NSMutableArray *parts = [NSMutableArray new];
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for (id attribute in _qsAttributes) {
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if ([urlString rangeOfString:[NSString stringWithFormat:@"%@=", attribute]].location != NSNotFound) {
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[NSException raise:@"Cannot override attribute" format:@"Attribute %@ is already present in url: %@", attribute, url.absoluteString];
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}
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[parts addObject:[NSString stringWithFormat:@"%@=%@", attribute, _qsAttributes[attribute]]];
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}
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return [NSURL URLWithString:[NSString stringWithFormat:@"%@%@", urlString, [parts componentsJoinedByString:@"&"]]];
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}
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@end
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