2 +--------------------------------------------------------------------+
4 +--------------------------------------------------------------------+
5 | Redistribution and use in source and binary forms, with or without |
6 | modification, are permitted provided that the conditions mentioned |
7 | in the accompanying LICENSE file are met. |
8 +--------------------------------------------------------------------+
9 | Copyright (c) 2004-2010, Michael Wallner <mike@php.net> |
10 +--------------------------------------------------------------------+
15 #ifndef PHP_HTTP_CACHE_API_H
16 #define PHP_HTTP_CACHE_API_H
18 #include "php_http_send_api.h"
20 #include "ext/standard/crc32.h"
21 #include "ext/standard/sha1.h"
22 #include "ext/standard/md5.h"
25 # include "php_hash.h"
28 #define http_etag_digest(d, l) _http_etag_digest((d), (l))
29 static inline char *_http_etag_digest(const unsigned char *digest
, int len
)
31 static const char hexdigits
[17] = "0123456789abcdef";
33 char *hex
= emalloc(len
* 2 + 1);
36 for (i
= 0; i
< len
; ++i
) {
37 *ptr
++ = hexdigits
[digest
[i
] >> 4];
38 *ptr
++ = hexdigits
[digest
[i
] & 0xF];
45 #define http_etag_init() _http_etag_init(TSRMLS_C)
46 static inline void *_http_etag_init(TSRMLS_D
)
49 char *mode
= HTTP_G
->etag
.mode
;
52 const php_hash_ops
*eho
= NULL
;
54 if (mode
&& (eho
= php_hash_fetch_ops(mode
, strlen(mode
)))) {
55 ctx
= emalloc(eho
->context_size
);
59 if (mode
&& ((!strcasecmp(mode
, "crc32")) || (!strcasecmp(mode
, "crc32b")))) {
60 ctx
= emalloc(sizeof(uint
));
62 } else if (mode
&& !strcasecmp(mode
, "sha1")) {
63 PHP_SHA1Init(ctx
= emalloc(sizeof(PHP_SHA1_CTX
)));
65 PHP_MD5Init(ctx
= emalloc(sizeof(PHP_MD5_CTX
)));
71 #define http_etag_finish(c) _http_etag_finish((c) TSRMLS_CC)
72 static inline char *_http_etag_finish(void *ctx TSRMLS_DC
)
74 unsigned char digest
[128] = {0};
75 char *etag
= NULL
, *mode
= HTTP_G
->etag
.mode
;
78 const php_hash_ops
*eho
= NULL
;
80 if (mode
&& (eho
= php_hash_fetch_ops(mode
, strlen(mode
)))) {
81 eho
->hash_final(digest
, ctx
);
82 etag
= http_etag_digest(digest
, eho
->digest_size
);
85 if (mode
&& ((!strcasecmp(mode
, "crc32")) || (!strcasecmp(mode
, "crc32b")))) {
86 *((uint
*) ctx
) = ~*((uint
*) ctx
);
87 etag
= http_etag_digest((const unsigned char *) ctx
, sizeof(uint
));
88 } else if (mode
&& (!strcasecmp(mode
, "sha1"))) {
89 PHP_SHA1Final(digest
, ctx
);
90 etag
= http_etag_digest(digest
, 20);
92 PHP_MD5Final(digest
, ctx
);
93 etag
= http_etag_digest(digest
, 16);
100 #define http_etag_update(c, d, l) _http_etag_update((c), (d), (l) TSRMLS_CC)
101 static inline void _http_etag_update(void *ctx
, const char *data_ptr
, size_t data_len TSRMLS_DC
)
103 char *mode
= HTTP_G
->etag
.mode
;
104 #ifdef HTTP_HAVE_HASH
105 const php_hash_ops
*eho
= NULL
;
107 if (mode
&& (eho
= php_hash_fetch_ops(mode
, strlen(mode
)))) {
108 eho
->hash_update(ctx
, (const unsigned char *) data_ptr
, data_len
);
111 if (mode
&& ((!strcasecmp(mode
, "crc32")) || (!strcasecmp(mode
, "crc32b")))) {
112 uint i
, c
= *((uint
*) ctx
);
113 for (i
= 0; i
< data_len
; ++i
) {
114 CRC32(c
, data_ptr
[i
]);
117 } else if (mode
&& (!strcasecmp(mode
, "sha1"))) {
118 PHP_SHA1Update(ctx
, (const unsigned char *) data_ptr
, data_len
);
120 PHP_MD5Update(ctx
, (const unsigned char *) data_ptr
, data_len
);
124 #define http_ob_etaghandler(o, l, ho, hl, m) _http_ob_etaghandler((o), (l), (ho), (hl), (m) TSRMLS_CC)
125 extern void _http_ob_etaghandler(char *output
, uint output_len
, char **handled_output
, uint
*handled_output_len
, int mode TSRMLS_DC
);
127 #define http_etag(p, l, m) _http_etag((p), (l), (m) TSRMLS_CC)
128 PHP_HTTP_API
char *_http_etag(const void *data_ptr
, size_t data_len
, http_send_mode data_mode TSRMLS_DC
);
130 #define http_last_modified(p, m) _http_last_modified((p), (m) TSRMLS_CC)
131 PHP_HTTP_API
time_t _http_last_modified(const void *data_ptr
, http_send_mode data_mode TSRMLS_DC
);
133 #define http_match_last_modified(entry, modified) _http_match_last_modified_ex((entry), (modified), 1 TSRMLS_CC)
134 #define http_match_last_modified_ex(entry, modified, ep) _http_match_last_modified_ex((entry), (modified), (ep) TSRMLS_CC)
135 PHP_HTTP_API zend_bool
_http_match_last_modified_ex(const char *entry
, time_t t
, zend_bool enforce_presence TSRMLS_DC
);
137 #define http_match_etag(entry, etag) _http_match_etag_ex((entry), (etag), 1 TSRMLS_CC)
138 #define http_match_etag_ex(entry, etag, ep) _http_match_etag_ex((entry), (etag), (ep) TSRMLS_CC)
139 PHP_HTTP_API zend_bool
_http_match_etag_ex(const char *entry
, const char *etag
, zend_bool enforce_presence TSRMLS_DC
);
141 #define http_cache_last_modified(l, s, cc, ccl) _http_cache_last_modified((l), (s), (cc), (ccl) TSRMLS_CC)
142 PHP_HTTP_API STATUS
_http_cache_last_modified(time_t last_modified
, time_t send_modified
, const char *cache_control
, size_t cc_len TSRMLS_DC
);
144 #define http_cache_etag(e, el, cc, ccl) _http_cache_etag((e), (el), (cc), (ccl) TSRMLS_CC)
145 PHP_HTTP_API STATUS
_http_cache_etag(const char *etag
, size_t etag_len
, const char *cache_control
, size_t cc_len TSRMLS_DC
);
147 #define http_start_ob_etaghandler() _http_start_ob_etaghandler(TSRMLS_C)
148 PHP_HTTP_API STATUS
_http_start_ob_etaghandler(TSRMLS_D
);
149 #define http_interrupt_ob_etaghandler() _http_interrupt_ob_etaghandler(TSRMLS_C)
150 PHP_HTTP_API zend_bool
_http_interrupt_ob_etaghandler(TSRMLS_D
);
159 * vim600: noet sw=4 ts=4 fdm=marker
160 * vim<600: noet sw=4 ts=4