1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/*
* Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
* Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "HTTPParsers.h"
#include "PlatformString.h"
namespace WebCore {
// true if there is more to parse
static inline bool skipWhiteSpace(const String& str, int& pos, bool fromHttpEquivMeta)
{
int len = str.length();
if (fromHttpEquivMeta)
while (pos != len && str[pos] <= ' ')
++pos;
else
while (pos != len && (str[pos] == '\t' || str[pos] == ' '))
++pos;
return pos != len;
}
bool parseHTTPRefresh(const String& refresh, bool fromHttpEquivMeta, double& delay, String& url)
{
int len = refresh.length();
int pos = 0;
if (!skipWhiteSpace(refresh, pos, fromHttpEquivMeta))
return false;
while (pos != len && refresh[pos] != ',' && refresh[pos] != ';')
++pos;
if (pos == len) { // no URL
url = String();
bool ok;
delay = refresh.stripWhiteSpace().toDouble(&ok);
return ok;
} else {
bool ok;
delay = refresh.left(pos).stripWhiteSpace().toDouble(&ok);
if (!ok)
return false;
++pos;
skipWhiteSpace(refresh, pos, fromHttpEquivMeta);
int urlStartPos = pos;
if (refresh.find("url", urlStartPos, false) == urlStartPos) {
urlStartPos += 3;
skipWhiteSpace(refresh, urlStartPos, fromHttpEquivMeta);
if (refresh[urlStartPos] == '=') {
++urlStartPos;
skipWhiteSpace(refresh, urlStartPos, fromHttpEquivMeta);
} else
urlStartPos = pos; // e.g. "Refresh: 0; url.html"
}
int urlEndPos = len;
if (refresh[urlStartPos] == '"' || refresh[urlStartPos] == '\'') {
UChar quotationMark = refresh[urlStartPos];
urlStartPos++;
while (urlEndPos > urlStartPos) {
urlEndPos--;
if (refresh[urlEndPos] == quotationMark)
break;
}
}
url = refresh.substring(urlStartPos, urlEndPos - urlStartPos).stripWhiteSpace();
return true;
}
}
String filenameFromHTTPContentDisposition(const String& value)
{
Vector<String> keyValuePairs;
value.split(';', keyValuePairs);
unsigned length = keyValuePairs.size();
for (unsigned i = 0; i < length; i++) {
int valueStartPos = keyValuePairs[i].find('=');
if (valueStartPos < 0)
continue;
String key = keyValuePairs[i].left(valueStartPos).stripWhiteSpace();
if (key.isEmpty() || key != "filename")
continue;
String value = keyValuePairs[i].substring(valueStartPos + 1).stripWhiteSpace();
// Remove quotes if there are any
if (value[0] == '\"')
value = value.substring(1, value.length() - 2);
return value;
}
return String();
}
String extractMIMETypeFromMediaType(const String& mediaType)
{
String mimeType;
unsigned length = mediaType.length();
for (unsigned offset = 0; offset < length; offset++) {
UChar c = mediaType[offset];
if (c == ';')
break;
else if (isSpaceOrNewline(c)) // FIXME: This seems wrong, " " is an invalid MIME type character according to RFC 2045. bug 8644
continue;
// FIXME: This is a very slow way to build a string, given WebCore::String's implementation.
mimeType += String(&c, 1);
}
return mimeType;
}
String extractCharsetFromMediaType(const String& mediaType)
{
int pos = 0;
int length = (int)mediaType.length();
while (pos < length) {
pos = mediaType.find("charset", pos, false);
if (pos <= 0)
return String();
// is what we found a beginning of a word?
if (mediaType[pos-1] > ' ' && mediaType[pos-1] != ';') {
pos += 7;
continue;
}
pos += 7;
// skip whitespace
while (pos != length && mediaType[pos] <= ' ')
++pos;
if (mediaType[pos++] != '=') // this "charset" substring wasn't a parameter name, but there may be others
continue;
while (pos != length && (mediaType[pos] <= ' ' || mediaType[pos] == '"' || mediaType[pos] == '\''))
++pos;
// we don't handle spaces within quoted parameter values, because charset names cannot have any
int endpos = pos;
while (pos != length && mediaType[endpos] > ' ' && mediaType[endpos] != '"' && mediaType[endpos] != '\'' && mediaType[endpos] != ';')
++endpos;
return mediaType.substring(pos, endpos-pos);
}
return String();
}
}
|
