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1 | ||
2 | /* | |
3 | * $Id$ | |
4 | * | |
5 | * DEBUG: section 86 ESI processing | |
6 | * AUTHOR: Robert Collins | |
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 | */ | |
35 | ||
36 | #include "squid.h" | |
37 | ||
38 | /* MS Visual Studio Projects are monolithic, so we need the following | |
39 | * #if to exclude the ESI code from compile process when not needed. | |
40 | */ | |
41 | #if (USE_SQUID_ESI == 1) | |
42 | ||
43 | #include "ESIContext.h" | |
44 | #include "Store.h" | |
45 | #include "client_side_request.h" | |
46 | ||
47 | void | |
48 | ESIContext::updateCachedAST() | |
49 | { | |
50 | assert (http); | |
51 | assert (http->storeEntry()); | |
52 | ||
53 | if (hasCachedAST()) { | |
54 | debugs(86, 5, "ESIContext::updateCachedAST: not updating AST cache for entry " << | |
55 | http->storeEntry() << " from ESI Context " << this << | |
56 | " as there is already a cached AST."); | |
57 | ||
58 | return; | |
59 | } | |
60 | ||
61 | ESIElement::Pointer treeToCache = tree->makeCacheable(); | |
62 | debugs(86, 5, "ESIContext::updateCachedAST: Updating AST cache for entry " << | |
63 | http->storeEntry() << " with current value " << | |
64 | http->storeEntry()->cachedESITree.getRaw() << " to new value " << | |
65 | treeToCache.getRaw()); | |
66 | ||
67 | if (http->storeEntry()->cachedESITree.getRaw()) | |
68 | http->storeEntry()->cachedESITree->finish(); | |
69 | ||
70 | http->storeEntry()->cachedESITree = treeToCache; | |
71 | ||
72 | treeToCache = NULL; | |
73 | } | |
74 | ||
75 | bool | |
76 | ESIContext::hasCachedAST() const | |
77 | { | |
78 | assert (http); | |
79 | assert (http->storeEntry()); | |
80 | ||
81 | if (http->storeEntry()->cachedESITree.getRaw()) { | |
82 | debugs(86, 5, "ESIContext::hasCachedAST: " << this << | |
83 | " - Cached AST present in store entry " << http->storeEntry() << "."); | |
84 | return true; | |
85 | } else { | |
86 | debugs(86, 5, "ESIContext::hasCachedAST: " << this << | |
87 | " - Cached AST not present in store entry " << http->storeEntry() << "."); | |
88 | return false; | |
89 | } | |
90 | } | |
91 | ||
92 | void | |
93 | ESIContext::getCachedAST() | |
94 | { | |
95 | if (cachedASTInUse) | |
96 | return; | |
97 | ||
98 | assert (hasCachedAST()); | |
99 | ||
100 | assert (varState); | |
101 | ||
102 | parserState.popAll(); | |
103 | ||
104 | tree = http->storeEntry()->cachedESITree->makeUsable (this, *varState); | |
105 | ||
106 | cachedASTInUse = true; | |
107 | } | |
108 | ||
109 | void | |
110 | ESIContext::setErrorMessage(char const *anError) | |
111 | { | |
112 | if (!errormessage) | |
113 | errormessage = xstrdup (anError); | |
114 | } | |
115 | ||
116 | #endif /* USE_SQUID_ESI == 1 */ |