1/*
2 * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
3 * Copyright (C) 2009 Google Inc. All rights reserved.
4 * Copyright (C) 2011 Apple Inc. All Rights Reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1.  Redistributions of source code must retain the above copyright
11 *     notice, this list of conditions and the following disclaimer.
12 * 2.  Redistributions in binary form must reproduce the above copyright
13 *     notice, this list of conditions and the following disclaimer in the
14 *     documentation and/or other materials provided with the distribution.
15 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
16 *     its contributors may be used to endorse or promote products derived
17 *     from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
20 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef HTTPParsers_h
32#define HTTPParsers_h
33
34#include "platform/PlatformExport.h"
35#include "wtf/Forward.h"
36#include "wtf/Vector.h"
37
38namespace WebCore {
39
40class HTTPHeaderMap;
41class ResourceResponseBase;
42
43typedef enum {
44    ContentDispositionNone,
45    ContentDispositionInline,
46    ContentDispositionAttachment,
47    ContentDispositionOther
48} ContentDispositionType;
49
50enum ContentTypeOptionsDisposition {
51    ContentTypeOptionsNone,
52    ContentTypeOptionsNosniff
53};
54
55enum XFrameOptionsDisposition {
56    XFrameOptionsNone,
57    XFrameOptionsDeny,
58    XFrameOptionsSameOrigin,
59    XFrameOptionsAllowAll,
60    XFrameOptionsInvalid,
61    XFrameOptionsConflict
62};
63
64// Be sure to update the behavior of XSSAuditor::combineXSSProtectionHeaderAndCSP whenever you change this enum's content or ordering.
65enum ReflectedXSSDisposition {
66    ReflectedXSSUnset = 0,
67    AllowReflectedXSS,
68    ReflectedXSSInvalid,
69    FilterReflectedXSS,
70    BlockReflectedXSS
71};
72
73struct CacheControlHeader {
74    bool parsed : 1;
75    bool containsNoCache : 1;
76    bool containsNoStore : 1;
77    bool containsMustRevalidate : 1;
78    double maxAge;
79
80    CacheControlHeader()
81        : parsed(false)
82        , containsNoCache(false)
83        , containsNoStore(false)
84        , containsMustRevalidate(false)
85        , maxAge(0.0)
86    {
87    }
88};
89
90PLATFORM_EXPORT ContentDispositionType contentDispositionType(const String&);
91PLATFORM_EXPORT bool isValidHTTPHeaderValue(const String&);
92PLATFORM_EXPORT bool isValidHTTPToken(const String&);
93PLATFORM_EXPORT bool parseHTTPRefresh(const String& refresh, bool fromHttpEquivMeta, double& delay, String& url);
94PLATFORM_EXPORT double parseDate(const String&);
95PLATFORM_EXPORT String filenameFromHTTPContentDisposition(const String&);
96PLATFORM_EXPORT AtomicString extractMIMETypeFromMediaType(const AtomicString&);
97PLATFORM_EXPORT String extractCharsetFromMediaType(const String&);
98PLATFORM_EXPORT void findCharsetInMediaType(const String& mediaType, unsigned& charsetPos, unsigned& charsetLen, unsigned start = 0);
99PLATFORM_EXPORT ReflectedXSSDisposition parseXSSProtectionHeader(const String& header, String& failureReason, unsigned& failurePosition, String& reportURL);
100PLATFORM_EXPORT String extractReasonPhraseFromHTTPStatusLine(const String&);
101PLATFORM_EXPORT XFrameOptionsDisposition parseXFrameOptionsHeader(const String&);
102PLATFORM_EXPORT CacheControlHeader parseCacheControlDirectives(const AtomicString& cacheControlHeader, const AtomicString& pragmaHeader);
103
104// -1 could be set to one of the return parameters to indicate the value is not specified.
105PLATFORM_EXPORT bool parseRange(const String&, long long& rangeOffset, long long& rangeEnd, long long& rangeSuffixLength);
106
107PLATFORM_EXPORT ContentTypeOptionsDisposition parseContentTypeOptionsHeader(const String& header);
108
109// Parsing Complete HTTP Messages.
110enum HTTPVersion { Unknown, HTTP_1_0, HTTP_1_1 };
111PLATFORM_EXPORT size_t parseHTTPRequestLine(const char* data, size_t length, String& failureReason, String& method, String& url, HTTPVersion&);
112PLATFORM_EXPORT size_t parseHTTPHeader(const char* data, size_t length, String& failureReason, AtomicString& nameStr, AtomicString& valueStr);
113PLATFORM_EXPORT size_t parseHTTPRequestBody(const char* data, size_t length, Vector<unsigned char>& body);
114
115}
116
117#endif
118