2 +----------------------------------------------------------------------+
4 +----------------------------------------------------------------------+
5 | This source file is subject to version 3.0 of the PHP license, that |
6 | is bundled with this package in the file LICENSE, and is available |
7 | through the world-wide-web at http://www.php.net/license/3_0.txt. |
8 | If you did not receive a copy of the PHP license and are unable to |
9 | obtain it through the world-wide-web, please send a note to |
10 | license@php.net so we can mail you a copy immediately. |
11 +----------------------------------------------------------------------+
12 | Copyright (c) 2004-2005 Michael Wallner <mike@php.net> |
13 +----------------------------------------------------------------------+
24 #include "php_streams.h"
25 #include "php_output.h"
26 #include "ext/standard/md5.h"
29 #include "php_http_std_defs.h"
30 #include "php_http_api.h"
31 #include "php_http_cache_api.h"
32 #include "php_http_send_api.h"
33 #include "php_http_date_api.h"
35 ZEND_EXTERN_MODULE_GLOBALS(http
);
37 /* {{{ char *http_etag(void *, size_t, http_send_mode) */
38 PHP_HTTP_API
char *_http_etag(const void *data_ptr
, size_t data_len
, http_send_mode data_mode TSRMLS_DC
)
40 php_stream_statbuf ssb
;
41 char ssb_buf
[128] = {0};
42 unsigned char digest
[16];
44 char *new_etag
= ecalloc(1, 33);
51 PHP_MD5Update(&ctx
, data_ptr
, data_len
);
56 if (php_stream_stat((php_stream
*) data_ptr
, &ssb
)) {
61 snprintf(ssb_buf
, 127, "%ld=%ld=%ld", ssb
.sb
.st_mtime
, ssb
.sb
.st_ino
, ssb
.sb
.st_size
);
62 PHP_MD5Update(&ctx
, ssb_buf
, strlen(ssb_buf
));
68 if (php_stream_stat_path((char *) data_ptr
, &ssb
)) {
73 snprintf(ssb_buf
, 127, "%ld=%ld=%ld", ssb
.sb
.st_mtime
, ssb
.sb
.st_ino
, ssb
.sb
.st_size
);
74 PHP_MD5Update(&ctx
, ssb_buf
, strlen(ssb_buf
));
79 PHP_MD5Final(digest
, &ctx
);
80 make_digest(new_etag
, digest
);
86 /* {{{ time_t http_last_modified(void *, http_send_mode) */
87 PHP_HTTP_API
time_t _http_last_modified(const void *data_ptr
, http_send_mode data_mode TSRMLS_DC
)
89 php_stream_statbuf ssb
;
93 case SEND_DATA
: return time(NULL
);
94 case SEND_RSRC
: return php_stream_stat((php_stream
*) data_ptr
, &ssb
) ? 0 : ssb
.sb
.st_mtime
;
95 default: return php_stream_stat_path((char *) data_ptr
, &ssb
) ? 0 : ssb
.sb
.st_mtime
;
100 /* {{{ zend_bool http_match_last_modified(char *, time_t) */
101 PHP_HTTP_API zend_bool
_http_match_last_modified_ex(const char *entry
, time_t t
, zend_bool enforce_presence TSRMLS_DC
)
105 char *modified
, *chr_ptr
;
107 HTTP_GSC(zmodified
, entry
, !enforce_presence
);
109 modified
= estrndup(Z_STRVAL_P(zmodified
), Z_STRLEN_P(zmodified
));
110 if (chr_ptr
= strrchr(modified
, ';')) {
113 retval
= (t
<= http_parse_date(modified
));
119 /* {{{ zend_bool http_match_etag(char *, char *) */
120 PHP_HTTP_API zend_bool
_http_match_etag_ex(const char *entry
, const char *etag
, zend_bool enforce_presence TSRMLS_DC
)
126 HTTP_GSC(zetag
, entry
, !enforce_presence
);
128 if (NULL
!= strchr(Z_STRVAL_P(zetag
), '*')) {
132 quoted_etag
= (char *) emalloc(strlen(etag
) + 3);
133 sprintf(quoted_etag
, "\"%s\"", etag
);
135 if (!strchr(Z_STRVAL_P(zetag
), ',')) {
136 result
= !strcmp(Z_STRVAL_P(zetag
), quoted_etag
);
138 result
= (NULL
!= strstr(Z_STRVAL_P(zetag
), quoted_etag
));
145 /* {{{ STATUS http_cache_last_modified(time_t, time_t, char *, size_t) */
146 PHP_HTTP_API STATUS
_http_cache_last_modified(time_t last_modified
,
147 time_t send_modified
, const char *cache_control
, size_t cc_len TSRMLS_DC
)
149 char *sent_header
= NULL
;
151 if (cc_len
&& (SUCCESS
!= http_send_cache_control(cache_control
, cc_len
))) {
155 if (SUCCESS
!= http_send_last_modified_ex(send_modified
, &sent_header
)) {
159 if (http_match_last_modified("HTTP_IF_MODIFIED_SINCE", last_modified
)) {
160 http_exit_ex(304, sent_header
, NULL
, 0);
162 STR_FREE(sent_header
);
169 /* {{{ STATUS http_cache_etag(char *, size_t, char *, size_t) */
170 PHP_HTTP_API STATUS
_http_cache_etag(const char *etag
, size_t etag_len
,
171 const char *cache_control
, size_t cc_len TSRMLS_DC
)
173 char *sent_header
= NULL
;
175 if (cc_len
&& (SUCCESS
!= http_send_cache_control(cache_control
, cc_len
))) {
180 if (SUCCESS
!= http_send_etag_ex(etag
, etag_len
, &sent_header
)) {
183 if (http_match_etag("HTTP_IF_NONE_MATCH", etag
)) {
184 http_exit_ex(304, sent_header
, NULL
, 0);
186 STR_FREE(sent_header
);
191 /* if no etag is given and we didn't already start ob_etaghandler -- start it */
192 if (HTTP_G(etag
).started
) {
196 if (HTTP_G(etag
).started
= (SUCCESS
== php_start_ob_buffer_named("ob_etaghandler", HTTP_SENDBUF_SIZE
, 1 TSRMLS_CC
))) {
204 /* {{{ void http_ob_etaghandler(char *, uint, char **, uint *, int) */
205 PHP_HTTP_API
void _http_ob_etaghandler(char *output
, uint output_len
,
206 char **handled_output
, uint
*handled_output_len
, int mode TSRMLS_DC
)
208 char etag
[33] = { 0 };
209 unsigned char digest
[16];
211 if (mode
& PHP_OUTPUT_HANDLER_START
) {
212 HTTP_G(etag
).started
= 1;
213 PHP_MD5Init(&HTTP_G(etag
).md5ctx
);
216 PHP_MD5Update(&HTTP_G(etag
).md5ctx
, output
, output_len
);
218 if (mode
& PHP_OUTPUT_HANDLER_END
) {
219 PHP_MD5Final(digest
, &HTTP_G(etag
).md5ctx
);
221 /* just do that if desired */
222 if (HTTP_G(etag
).started
) {
223 char *sent_header
= NULL
;
225 make_digest(etag
, digest
);
226 http_send_cache_control(HTTP_DEFAULT_CACHECONTROL
, lenof(HTTP_DEFAULT_CACHECONTROL
));
227 http_send_etag_ex(etag
, 32, &sent_header
);
229 if (http_match_etag("HTTP_IF_NONE_MATCH", etag
)) {
230 http_exit_ex(304, sent_header
, NULL
, 0);
232 STR_FREE(sent_header
);
237 *handled_output_len
= output_len
;
238 *handled_output
= estrndup(output
, output_len
);
247 * vim600: sw=4 ts=4 fdm=marker