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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 | #ifndef SQUID_HTTPHDRSURROGATECONTROLTARGET_H | |
10 | #define SQUID_HTTPHDRSURROGATECONTROLTARGET_H | |
11 | ||
12 | #include "defines.h" //for bit mask operations | |
13 | #include "HttpHdrSc.h" | |
14 | ||
15 | class Packable; | |
16 | class StatHist; | |
17 | class StoreEntry; | |
18 | ||
19 | /** Representation of HTTP Surogate-Control header field targeted directive | |
20 | * | |
21 | * \see HttpHdrSc | |
22 | */ | |
23 | class HttpHdrScTarget | |
24 | { | |
25 | MEMPROXY_CLASS(HttpHdrScTarget); | |
26 | ||
27 | // parsing is done in HttpHdrSc, need to grant them access. | |
28 | friend class HttpHdrSc; | |
29 | public: | |
30 | static const int MAX_AGE_UNSET=-1; //max-age is unset | |
31 | static const int MAX_STALE_UNSET=0; //max-stale is unset | |
32 | ||
33 | HttpHdrScTarget(const char *target_): | |
34 | mask(0), max_age(MAX_AGE_UNSET), max_stale(MAX_STALE_UNSET),target(target_) {} | |
35 | HttpHdrScTarget(const String &target_): | |
36 | mask(0), max_age(MAX_AGE_UNSET), max_stale(MAX_STALE_UNSET),target(target_) {} | |
37 | HttpHdrScTarget(const HttpHdrScTarget &t): | |
38 | mask(t.mask), max_age(t.max_age), max_stale(t.max_stale), | |
39 | content_(t.content_), target(t.target) {} | |
40 | ||
41 | bool hasNoStore() const {return isSet(SC_NO_STORE); } | |
42 | void noStore(bool v) { setMask(SC_NO_STORE,v); } | |
43 | bool noStore() const { return isSet(SC_NO_STORE); } | |
44 | void clearNoStore() { setMask(SC_NO_STORE, false); } | |
45 | ||
46 | bool hasNoStoreRemote() const {return isSet(SC_NO_STORE_REMOTE); } | |
47 | void noStoreRemote(bool v) { setMask(SC_NO_STORE_REMOTE,v); } | |
48 | bool noStoreRemote() const { return isSet(SC_NO_STORE_REMOTE); } | |
49 | void clearNoStoreRemote() { setMask(SC_NO_STORE_REMOTE, false); } | |
50 | ||
51 | bool hasMaxAge() const { return isSet(SC_MAX_AGE); } | |
52 | void maxAge(int v) { | |
53 | if (v >= 0) { //setting | |
54 | setMask(SC_MAX_AGE,true); | |
55 | max_age=v; | |
56 | } else { | |
57 | setMask(SC_MAX_AGE,false); | |
58 | max_age=MAX_AGE_UNSET; | |
59 | } | |
60 | } | |
61 | int maxAge() const { return max_age; } | |
62 | void clearMaxAge() { setMask(SC_MAX_AGE,false); max_age=MAX_AGE_UNSET; } | |
63 | ||
64 | //max_stale has no associated status-bit | |
65 | bool hasMaxStale() const { return max_stale != MAX_STALE_UNSET; } | |
66 | void maxStale(int v) { max_stale=v; } | |
67 | int maxStale() const { return max_stale; } | |
68 | void clearMaxStale() { max_stale=MAX_STALE_UNSET; } | |
69 | ||
70 | bool hasContent() const { return isSet(SC_CONTENT); } | |
71 | void Content(const String &v) { | |
72 | setMask(SC_CONTENT,true); | |
73 | content_=v; | |
74 | } | |
75 | String content() const { return content_; } | |
76 | void clearContent() { setMask(SC_CONTENT,false); content_.clean(); } | |
77 | ||
78 | bool hasTarget() const { return target.size() != 0; } | |
79 | String Target() const { return target; } | |
80 | ||
81 | void mergeWith(const HttpHdrScTarget * new_sc); | |
82 | void packInto(Packable *p) const; | |
83 | void updateStats(StatHist *) const; | |
84 | ||
85 | private: | |
86 | bool isSet(http_hdr_sc_type id) const { | |
87 | assert (id >= SC_NO_STORE && id < SC_ENUM_END); | |
88 | return EBIT_TEST(mask,id); | |
89 | } | |
90 | ||
91 | void setMask(http_hdr_sc_type id, bool newval) { | |
92 | if (newval) EBIT_SET(mask,id); | |
93 | else EBIT_CLR(mask,id); | |
94 | } | |
95 | ||
96 | int mask; | |
97 | int max_age; | |
98 | int max_stale; | |
99 | String content_; | |
100 | String target; | |
101 | dlink_node node; | |
102 | }; | |
103 | ||
104 | void httpHdrScTargetStatDumper(StoreEntry * sentry, int idx, double val, double size, int count); | |
105 | ||
106 | #endif /* SQUID_HTTPHDRSURROGATECONTROLTARGET_H */ | |
107 |