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1 | /* | |
2 | * Copyright (C) 1996-2017 The Squid Software Foundation and contributors | |
3 | * | |
4 | * Squid software is distributed under GPLv2+ license and includes | |
5 | * contributions from numerous individuals and organizations. | |
6 | * Please see the COPYING and CONTRIBUTORS files for details. | |
7 | */ | |
8 | ||
9 | /* DEBUG: section 86 ESI processing */ | |
10 | ||
11 | #include "squid.h" | |
12 | ||
13 | /* MS Visual Studio Projects are monolithic, so we need the following | |
14 | * #if to exclude the ESI code from compile process when not needed. | |
15 | */ | |
16 | #if (USE_SQUID_ESI == 1) | |
17 | ||
18 | #include "client_side_request.h" | |
19 | #include "esi/Context.h" | |
20 | #include "http/Stream.h" | |
21 | #include "Store.h" | |
22 | ||
23 | void | |
24 | ESIContext::updateCachedAST() | |
25 | { | |
26 | assert (http); | |
27 | assert (http->storeEntry()); | |
28 | ||
29 | if (hasCachedAST()) { | |
30 | debugs(86, 5, "ESIContext::updateCachedAST: not updating AST cache for entry " << | |
31 | http->storeEntry() << " from ESI Context " << this << | |
32 | " as there is already a cached AST."); | |
33 | ||
34 | return; | |
35 | } | |
36 | ||
37 | ESIElement::Pointer treeToCache = tree->makeCacheable(); | |
38 | debugs(86, 5, "ESIContext::updateCachedAST: Updating AST cache for entry " << | |
39 | http->storeEntry() << " with current value " << | |
40 | http->storeEntry()->cachedESITree.getRaw() << " to new value " << | |
41 | treeToCache.getRaw()); | |
42 | ||
43 | if (http->storeEntry()->cachedESITree.getRaw()) | |
44 | http->storeEntry()->cachedESITree->finish(); | |
45 | ||
46 | http->storeEntry()->cachedESITree = treeToCache; | |
47 | ||
48 | treeToCache = NULL; | |
49 | } | |
50 | ||
51 | bool | |
52 | ESIContext::hasCachedAST() const | |
53 | { | |
54 | assert (http); | |
55 | assert (http->storeEntry()); | |
56 | ||
57 | if (http->storeEntry()->cachedESITree.getRaw()) { | |
58 | debugs(86, 5, "ESIContext::hasCachedAST: " << this << | |
59 | " - Cached AST present in store entry " << http->storeEntry() << "."); | |
60 | return true; | |
61 | } else { | |
62 | debugs(86, 5, "ESIContext::hasCachedAST: " << this << | |
63 | " - Cached AST not present in store entry " << http->storeEntry() << "."); | |
64 | return false; | |
65 | } | |
66 | } | |
67 | ||
68 | void | |
69 | ESIContext::getCachedAST() | |
70 | { | |
71 | if (cachedASTInUse) | |
72 | return; | |
73 | ||
74 | assert (hasCachedAST()); | |
75 | ||
76 | assert (varState); | |
77 | ||
78 | parserState.popAll(); | |
79 | ||
80 | tree = http->storeEntry()->cachedESITree->makeUsable (this, *varState); | |
81 | ||
82 | cachedASTInUse = true; | |
83 | } | |
84 | ||
85 | void | |
86 | ESIContext::setErrorMessage(char const *anError) | |
87 | { | |
88 | if (!errormessage) | |
89 | errormessage = xstrdup(anError); | |
90 | } | |
91 | ||
92 | #endif /* USE_SQUID_ESI == 1 */ | |
93 |