2 * Copyright (C) 2005 Apple Computer, Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
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12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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29 #import "WebNSURLRequestExtras.h"
31 #import "WebNSURLExtras.h"
33 #define WebContentType (@"Content-Type")
34 #define WebUserAgent (@"User-Agent")
35 #define WebReferrer (@"Referer")
37 @implementation NSURLRequest (WebNSURLRequestExtras)
39 - (NSString *)_web_HTTPReferrer
41 return [self valueForHTTPHeaderField:WebReferrer];
44 - (NSString *)_web_HTTPContentType
46 return [self valueForHTTPHeaderField:WebContentType];
49 - (BOOL)_web_isConditionalRequest
51 if ([self valueForHTTPHeaderField:@"If-Match"] ||
52 [self valueForHTTPHeaderField:@"If-Modified-Since"] ||
53 [self valueForHTTPHeaderField:@"If-None-Match"] ||
54 [self valueForHTTPHeaderField:@"If-Range"] ||
55 [self valueForHTTPHeaderField:@"If-Unmodified-Since"])
62 @implementation NSMutableURLRequest (WebNSURLRequestExtras)
64 - (void)_web_setHTTPContentType:(NSString *)contentType
66 [self setValue:contentType forHTTPHeaderField:WebContentType];
69 - (void)_web_setHTTPReferrer:(NSString *)referrer
71 // Do not set the referrer to a string that refers to a file URL.
72 // That is a potential security hole.
73 if ([referrer _webkit_isFileURL])
76 // Don't allow empty Referer: headers; some servers refuse them
77 if ([referrer length] == 0)
80 [self setValue:referrer forHTTPHeaderField:WebReferrer];
83 - (void)_web_setHTTPUserAgent:(NSString *)userAgent
85 [self setValue:userAgent forHTTPHeaderField:WebUserAgent];