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924f73bc | 1 | |
2 | /* | |
262a0e14 | 3 | * $Id$ |
924f73bc | 4 | * |
5 | * | |
6 | * SQUID Web Proxy Cache http://www.squid-cache.org/ | |
7 | * ---------------------------------------------------------- | |
8 | * | |
9 | * Squid is the result of efforts by numerous individuals from | |
10 | * the Internet community; see the CONTRIBUTORS file for full | |
11 | * details. Many organizations have provided support for Squid's | |
12 | * development; see the SPONSORS file for full details. Squid is | |
13 | * Copyrighted (C) 2001 by the Regents of the University of | |
14 | * California; see the COPYRIGHT file for full details. Squid | |
15 | * incorporates software developed and/or copyrighted by other | |
16 | * sources; see the CREDITS file for full details. | |
17 | * | |
18 | * This program is free software; you can redistribute it and/or modify | |
19 | * it under the terms of the GNU General Public License as published by | |
20 | * the Free Software Foundation; either version 2 of the License, or | |
21 | * (at your option) any later version. | |
26ac0430 | 22 | * |
924f73bc | 23 | * This program is distributed in the hope that it will be useful, |
24 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
26 | * GNU General Public License for more details. | |
26ac0430 | 27 | * |
924f73bc | 28 | * You should have received a copy of the GNU General Public License |
29 | * along with this program; if not, write to the Free Software | |
30 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. | |
31 | * | |
32 | */ | |
33 | ||
34 | #ifndef SQUID_ESIVARSTATE_H | |
35 | #define SQUID_ESIVARSTATE_H | |
36 | ||
f99c2cfe | 37 | #include "esi/Segment.h" |
924f73bc | 38 | #include "Trie.h" |
39 | #include "Array.h" | |
40 | #include "HttpHeader.h" | |
41 | ||
42 | /* esi variable replacement logic */ | |
43 | ||
44 | typedef enum { | |
45 | ESI_BROWSER_MSIE, | |
46 | ESI_BROWSER_MOZILLA, | |
47 | ESI_BROWSER_OTHER | |
48 | } esiBrowser_t; | |
49 | ||
50 | extern char const * esiBrowsers[]; | |
51 | ||
52 | /* Recursive uses are not supported by design */ | |
53 | ||
26ac0430 | 54 | struct _query_elem {char *var, *val;}; |
924f73bc | 55 | |
56 | class ESIVarState | |
57 | { | |
58 | ||
59 | public: | |
60 | ESISegment::Pointer extractList(); | |
61 | char *extractChar(); | |
62 | void feedData (const char *buf, size_t len); | |
63 | void buildVary (HttpReply *rep); | |
64 | ||
65 | class Variable; | |
66 | void addVariable (char const *, size_t, Variable *); | |
30abd221 | 67 | void removeVariable (String const &); |
924f73bc | 68 | |
69 | void *operator new (size_t byteCount); | |
70 | void operator delete (void *address); | |
924f73bc | 71 | void freeResources(); |
72 | ESIVarState (HttpHeader const *hdr, char const *uri); | |
73 | ~ESIVarState(); | |
74 | ||
75 | /* For Variables */ | |
76 | void cookieUsed(); | |
77 | void hostUsed(); | |
78 | void languageUsed(); | |
79 | void refererUsed(); | |
80 | void useragentUsed(); | |
81 | ESISegment::Pointer &getOutput(); | |
82 | HttpHeader &header(); | |
83 | ||
84 | private: | |
85 | ESISegment::Pointer input; | |
86 | ESISegment::Pointer output; | |
87 | HttpHeader hdr; | |
88 | ||
26ac0430 | 89 | struct { |
3d0ac046 HN |
90 | int language:1; |
91 | int cookie:1; | |
92 | int host:1; | |
93 | int referer:1; | |
94 | int useragent:1; | |
95 | } flags; | |
924f73bc | 96 | |
97 | public: | |
98 | ||
99 | class Variable | |
100 | { | |
101 | ||
102 | public: | |
103 | Variable () {} | |
104 | ||
26ac0430 | 105 | virtual ~Variable() {} |
924f73bc | 106 | |
107 | /* prevent synthetics */ | |
108 | Variable (Variable const &) {} | |
109 | ||
110 | Variable &operator= (Variable const &); | |
111 | virtual void eval (ESIVarState &state, char const *, char const *) const; | |
112 | }; | |
113 | ||
114 | Variable* GetVar(char const *s, int len); | |
115 | ||
116 | private: | |
117 | void doIt (); | |
118 | void setupUserAgent(); | |
119 | Trie variables; | |
120 | Vector<Variable*> variablesForCleanup; | |
121 | Variable *defaultVariable; | |
122 | }; | |
123 | ||
124 | class ESIVariableCookie : public ESIVarState::Variable | |
125 | { | |
126 | ||
127 | public: | |
128 | virtual void eval (ESIVarState &state, char const *, char const *) const; | |
129 | }; | |
130 | ||
131 | class ESIVariableHost : public ESIVarState::Variable | |
132 | { | |
133 | ||
134 | public: | |
135 | virtual void eval (ESIVarState &state, char const *, char const *) const; | |
136 | }; | |
137 | ||
138 | class ESIVariableLanguage : public ESIVarState::Variable | |
139 | { | |
140 | ||
141 | public: | |
142 | virtual void eval (ESIVarState &state, char const *, char const *) const; | |
143 | }; | |
144 | ||
145 | class ESIVariableQuery : public ESIVarState::Variable | |
146 | { | |
147 | ||
148 | public: | |
149 | ESIVariableQuery(char const *uri); | |
150 | ~ESIVariableQuery(); | |
151 | virtual void eval (ESIVarState &state, char const *, char const *) const; | |
152 | char const *queryString() const; | |
153 | ||
154 | struct _query_elem const *queryVector() const; | |
155 | size_t const &queryElements() const; | |
156 | ||
157 | struct _query_elem *query; | |
158 | size_t query_sz; | |
159 | size_t query_elements; | |
160 | char *query_string; | |
161 | }; | |
162 | ||
163 | class ESIVariableReferer : public ESIVarState::Variable | |
164 | { | |
165 | ||
166 | public: | |
167 | virtual void eval (ESIVarState &state, char const *, char const *) const; | |
168 | }; | |
169 | ||
170 | class ESIVariableUserAgent : public ESIVarState::Variable | |
171 | { | |
172 | ||
173 | public: | |
174 | ~ESIVariableUserAgent(); | |
175 | ESIVariableUserAgent (ESIVarState &state); | |
176 | virtual void eval (ESIVarState &state, char const *, char const *) const; | |
177 | ||
178 | private: | |
179 | static char const * esiUserOs[]; | |
26ac0430 | 180 | enum esiUserOs_t { |
924f73bc | 181 | ESI_OS_WIN, |
182 | ESI_OS_MAC, | |
183 | ESI_OS_UNIX, | |
184 | ESI_OS_OTHER | |
185 | }; | |
186 | esiUserOs_t identifyOs(char const *) const; | |
187 | char const *browserVersion() const {return browserversion;} | |
188 | ||
189 | char *getProductVersion (char const *s); | |
190 | esiUserOs_t UserOs; | |
191 | esiBrowser_t browser; | |
192 | char *browserversion; | |
193 | }; | |
194 | ||
924f73bc | 195 | #endif /* SQUID_ESIVARSTATE_H */ |