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Commit | Line | Data |
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bbc27441 | 1 | /* |
ef57eb7b | 2 | * Copyright (C) 1996-2016 The Squid Software Foundation and contributors |
bbc27441 AJ |
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 | ||
3b07476b CT |
9 | #ifndef SQUID_HTTPHEADERTOOLS_H |
10 | #define SQUID_HTTPHEADERTOOLS_H | |
11 | ||
6f58d7d7 | 12 | #include "acl/forward.h" |
f4698e0b | 13 | #include "format/Format.h" |
582c2af2 | 14 | #include "HttpHeader.h" |
f4698e0b | 15 | |
620bc212 | 16 | #include <functional> |
f4698e0b | 17 | #include <list> |
3b07476b | 18 | #include <map> |
3b07476b | 19 | #include <string> |
620bc212 AR |
20 | #if HAVE_STRINGS_H |
21 | #include <strings.h> | |
22 | #endif | |
3b07476b | 23 | |
f4698e0b | 24 | class HeaderWithAcl; |
001d55dc | 25 | class HttpHeader; |
001d55dc FC |
26 | class HttpRequest; |
27 | class StoreEntry; | |
28 | class String; | |
29 | ||
f4698e0b CT |
30 | typedef std::list<HeaderWithAcl> HeaderWithAclList; |
31 | ||
001d55dc FC |
32 | // Currently a POD |
33 | class headerMangler | |
1b2f0924 | 34 | { |
09bbee4c | 35 | public: |
3b07476b CT |
36 | acl_access *access_list; |
37 | char *replacement; | |
38 | }; | |
3b07476b | 39 | |
001d55dc | 40 | /// A collection of headerMangler objects for a given message kind. |
d3abcb0d A |
41 | class HeaderManglers |
42 | { | |
3b07476b CT |
43 | public: |
44 | HeaderManglers(); | |
45 | ~HeaderManglers(); | |
46 | ||
47 | /// returns a header mangler for field e or nil if none was specified | |
001d55dc | 48 | const headerMangler *find(const HttpHeaderEntry &e) const; |
3b07476b CT |
49 | |
50 | /// returns a mangler for the named header (known or custom) | |
001d55dc | 51 | headerMangler *track(const char *name); |
3b07476b CT |
52 | |
53 | /// updates mangler for the named header with a replacement value | |
54 | void setReplacement(const char *name, const char *replacementValue); | |
55 | ||
56 | /// report the *_header_access part of the configuration | |
57 | void dumpAccess(StoreEntry *entry, const char *optionName) const; | |
58 | /// report the *_header_replace part of the configuration | |
59 | void dumpReplacement(StoreEntry *entry, const char *optionName) const; | |
60 | ||
61 | private: | |
620bc212 AR |
62 | /// Case-insensitive std::string "less than" comparison functor. |
63 | /// Fast version recommended by Meyers' "Effective STL" for ASCII c-strings. | |
6e422d23 A |
64 | class NoCaseLessThan: public std::binary_function<std::string, std::string, bool> |
65 | { | |
620bc212 AR |
66 | public: |
67 | bool operator()(const std::string &lhs, const std::string &rhs) const { | |
68 | return strcasecmp(lhs.c_str(), rhs.c_str()) < 0; | |
69 | } | |
70 | }; | |
71 | ||
3b07476b | 72 | /// a name:mangler map; optimize: use unordered map or some such |
620bc212 | 73 | typedef std::map<std::string, headerMangler, NoCaseLessThan> ManglersByName; |
3b07476b CT |
74 | |
75 | /// one mangler for each known header | |
81ab22b6 | 76 | headerMangler known[static_cast<int>(Http::HdrType::enumEnd_)]; |
3b07476b CT |
77 | |
78 | /// one mangler for each custom header | |
79 | ManglersByName custom; | |
80 | ||
81 | /// configured if some mangling ACL applies to all header names | |
001d55dc | 82 | headerMangler all; |
3b07476b CT |
83 | |
84 | private: | |
85 | /* not implemented */ | |
86 | HeaderManglers(const HeaderManglers &); | |
87 | HeaderManglers &operator =(const HeaderManglers &); | |
88 | }; | |
f4698e0b | 89 | |
f4698e0b CT |
90 | class HeaderWithAcl |
91 | { | |
92 | public: | |
789217a2 | 93 | HeaderWithAcl() : aclList(NULL), valueFormat(NULL), fieldId(Http::HdrType::BAD_HDR), quoted(false) {} |
f4698e0b CT |
94 | |
95 | /// HTTP header field name | |
96 | std::string fieldName; | |
97 | ||
98 | /// HTTP header field value, possibly with macros | |
99 | std::string fieldValue; | |
100 | ||
101 | /// when the header field should be added (always if nil) | |
102 | ACLList *aclList; | |
103 | ||
104 | /// compiled HTTP header field value (no macros) | |
105 | Format::Format *valueFormat; | |
106 | ||
107 | /// internal ID for "known" headers or HDR_OTHER | |
789217a2 | 108 | Http::HdrType fieldId; |
f4698e0b CT |
109 | |
110 | /// whether fieldValue may contain macros | |
111 | bool quoted; | |
112 | }; | |
582c2af2 | 113 | |
001d55dc | 114 | int httpHeaderParseOffset(const char *start, int64_t * off); |
fc54b8d2 | 115 | |
001d55dc FC |
116 | int httpHeaderHasConnDir(const HttpHeader * hdr, const char *directive); |
117 | int httpHeaderParseInt(const char *start, int *val); | |
789217a2 | 118 | void httpHeaderPutStrf(HttpHeader * hdr, Http::HdrType id, const char *fmt,...) PRINTF_FORMAT_ARG3; |
fc54b8d2 | 119 | |
81858ebc | 120 | const char *getStringPrefix(const char *str, size_t len); |
1dff8715 | 121 | |
001d55dc | 122 | void httpHdrMangleList(HttpHeader *, HttpRequest *, int req_or_rep); |
f01162cf | 123 | |
3b07476b | 124 | #endif |
f53969cc | 125 |