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2 | /* | |
3 | * $Id: HttpRequestMethod.cc,v 1.1 2006/05/08 23:38:33 robertc Exp $ | |
4 | * | |
5 | * DEBUG: section 73 HTTP Request | |
6 | * AUTHOR: Duane Wessels | |
7 | * | |
8 | * SQUID Web Proxy Cache http://www.squid-cache.org/ | |
9 | * ---------------------------------------------------------- | |
10 | * | |
11 | * Squid is the result of efforts by numerous individuals from | |
12 | * the Internet community; see the CONTRIBUTORS file for full | |
13 | * details. Many organizations have provided support for Squid's | |
14 | * development; see the SPONSORS file for full details. Squid is | |
15 | * Copyrighted (C) 2001 by the Regents of the University of | |
16 | * California; see the COPYRIGHT file for full details. Squid | |
17 | * incorporates software developed and/or copyrighted by other | |
18 | * sources; see the CREDITS file for full details. | |
19 | * | |
20 | * This program is free software; you can redistribute it and/or modify | |
21 | * it under the terms of the GNU General Public License as published by | |
22 | * the Free Software Foundation; either version 2 of the License, or | |
23 | * (at your option) any later version. | |
24 | * | |
25 | * This program is distributed in the hope that it will be useful, | |
26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
28 | * GNU General Public License for more details. | |
29 | * | |
30 | * You should have received a copy of the GNU General Public License | |
31 | * along with this program; if not, write to the Free Software | |
32 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. | |
33 | * | |
34 | * Copyright (c) 2003, Robert Collins <robertc@squid-cache.org> | |
35 | */ | |
36 | ||
37 | #include "squid.h" | |
38 | #include "HttpRequestMethod.h" | |
39 | #include "wordlist.h" | |
40 | ||
41 | const char *RequestMethodStr[] = | |
42 | { | |
43 | "NONE", | |
44 | "GET", | |
45 | "POST", | |
46 | "PUT", | |
47 | "HEAD", | |
48 | "CONNECT", | |
49 | "TRACE", | |
50 | "PURGE", | |
51 | "OPTIONS", | |
52 | "DELETE", | |
53 | "PROPFIND", | |
54 | "PROPPATCH", | |
55 | "MKCOL", | |
56 | "COPY", | |
57 | "MOVE", | |
58 | "LOCK", | |
59 | "UNLOCK", | |
60 | "BMOVE", | |
61 | "BDELETE", | |
62 | "BPROPFIND", | |
63 | "BPROPPATCH", | |
64 | "BCOPY", | |
65 | "SEARCH", | |
66 | "SUBSCRIBE", | |
67 | "UNSUBSCRIBE", | |
68 | "POLL", | |
69 | "REPORT", | |
70 | "%EXT00", | |
71 | "%EXT01", | |
72 | "%EXT02", | |
73 | "%EXT03", | |
74 | "%EXT04", | |
75 | "%EXT05", | |
76 | "%EXT06", | |
77 | "%EXT07", | |
78 | "%EXT08", | |
79 | "%EXT09", | |
80 | "%EXT10", | |
81 | "%EXT11", | |
82 | "%EXT12", | |
83 | "%EXT13", | |
84 | "%EXT14", | |
85 | "%EXT15", | |
86 | "%EXT16", | |
87 | "%EXT17", | |
88 | "%EXT18", | |
89 | "%EXT19", | |
90 | "ERROR" | |
91 | }; | |
92 | ||
93 | static | |
94 | method_t &operator++ (method_t &aMethod) | |
95 | { | |
96 | int tmp = (int)aMethod; | |
97 | aMethod = (method_t)(++tmp); | |
98 | return aMethod; | |
99 | } | |
100 | ||
101 | /* | |
102 | * Construct a HttpRequestMethod from a NULL terminated string such as "GET" | |
103 | * or from a range of chars, * such as "GET" from "GETFOOBARBAZ" | |
104 | * (pass in pointer to G and pointer to F.) | |
105 | */ | |
106 | HttpRequestMethod::HttpRequestMethod(char const *begin, char const *end) : theMethod (METHOD_NONE) | |
107 | { | |
108 | if (begin == NULL) | |
109 | return; | |
110 | ||
111 | /* | |
112 | * This check for '%' makes sure that we don't | |
113 | * match one of the extension method placeholders, | |
114 | * which have the form %EXT[0-9][0-9] | |
115 | */ | |
116 | ||
117 | if (*begin == '%') | |
118 | return; | |
119 | ||
120 | /* | |
121 | * if e is NULL, b must be NULL terminated and we | |
122 | * make e point to the first whitespace character | |
123 | * after b. | |
124 | */ | |
125 | if (NULL == end) | |
126 | end = begin + strcspn(begin, w_space); | |
127 | ||
128 | for (++theMethod; theMethod < METHOD_ENUM_END; ++theMethod) { | |
129 | if (0 == strncasecmp(begin, RequestMethodStr[theMethod], end-begin)) | |
130 | return; | |
131 | } | |
132 | ||
133 | /* reset to none */ | |
134 | theMethod = METHOD_NONE; | |
135 | } | |
136 | ||
137 | void | |
138 | HttpRequestMethod::AddExtension(const char *mstr) | |
139 | { | |
140 | method_t method = METHOD_NONE; | |
141 | ||
142 | for (++method; method < METHOD_ENUM_END; ++method) { | |
143 | if (0 == strcmp(mstr, RequestMethodStr[method])) { | |
144 | debug(23, 2) ("Extension method '%s' already exists\n", mstr); | |
145 | return; | |
146 | } | |
147 | ||
148 | if (0 != strncmp("%EXT", RequestMethodStr[method], 4)) | |
149 | continue; | |
150 | ||
151 | /* Don't free statically allocated "%EXTnn" string */ | |
152 | RequestMethodStr[method] = xstrdup(mstr); | |
153 | ||
154 | debug(23, 1) ("Extension method '%s' added, enum=%d\n", mstr, (int) method); | |
155 | ||
156 | return; | |
157 | } | |
158 | ||
159 | debug(23, 1) ("WARNING: Could not add new extension method '%s' due to lack of array space\n", mstr); | |
160 | } | |
161 | ||
162 | void | |
163 | HttpRequestMethod::Configure(SquidConfig &Config) | |
164 | { | |
165 | wordlist *w = Config.ext_methods; | |
166 | ||
167 | while (w) { | |
168 | char *s; | |
169 | ||
170 | for (s = w->key; *s; s++) | |
171 | *s = xtoupper(*s); | |
172 | ||
173 | AddExtension(w->key); | |
174 | ||
175 | w = w->next; | |
176 | } | |
177 | } |