63 lines
3.1 KiB
Objective-C
63 lines
3.1 KiB
Objective-C
//
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// NSString+PercentEncoding.m
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// OneTimePassword
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//
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// Copyright (c) 2013 Matt Rubin
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of
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// this software and associated documentation files (the "Software"), to deal in
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// the Software without restriction, including without limitation the rights to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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// the Software, and to permit persons to whom the Software is furnished to do so,
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// 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 all
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// 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, FITNESS
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// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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#import "NSString+PercentEncoding.h"
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// For alternate implementations, see:
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// https://github.com/Singly/iOS-SDK/blob/master/SinglySDK/SinglySDK/NSString%2BURLEncoding.m
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// https://code.google.com/p/google-toolbox-for-mac/source/browse/trunk/Foundation/GTMNSString%2BURLArguments.m
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@implementation NSString (PercentEncoding)
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// NSString's stringByAddingPercentEscapesUsingEncoding: doesn't percent-encode the reserved
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// characters defined in the URI specification ( https://tools.ietf.org/html/rfc3986#section-2.2 ).
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// This method escapes every reserved character to produce a string which is a valid argument for a
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// URL query string. (via http://simonwoodside.com/weblog/2009/4/22/how_to_really_url_encode/ )
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- (NSString *)percentEncodedString
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{
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CFStringRef escapedString = CFURLCreateStringByAddingPercentEscapes(NULL,
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(__bridge CFStringRef)(self),
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NULL,
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CFSTR(":/?#[]@!$&'()*+,;=%"),
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kCFStringEncodingUTF8);
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return CFBridgingRelease(escapedString);
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}
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// This method unescapes all percent-encoded characters to convert a string from a URL into a human-
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// readable format.
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- (NSString *)percentDecodedString
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{
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// Convert all percent-encoded characters back to their readable equivalents
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CFStringRef decodedString = CFURLCreateStringByReplacingPercentEscapesUsingEncoding(NULL,
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(__bridge CFStringRef)(self),
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CFSTR(""),
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kCFStringEncodingUTF8);
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return CFBridgingRelease(decodedString);
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}
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@end
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