/* {{{ STATUS http_cache_last_modified(time_t, time_t, char *, size_t) */
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)
{
char *sent_header = NULL;
if (SG(headers_sent)) {
return FAILURE;
}
if (cc_len && (SUCCESS != http_send_cache_control(cache_control, cc_len))) {
return FAILURE;
}
if (SUCCESS != http_send_last_modified_ex(send_modified, &sent_header)) {
return FAILURE;
}
if (http_match_last_modified("HTTP_IF_MODIFIED_SINCE", last_modified)) {
http_exit_ex(304, sent_header, NULL, 0);
} else {
STR_FREE(sent_header);
}
return SUCCESS;
}
/* {{{ STATUS http_cache_etag(char *, size_t, char *, size_t) */
PHP_HTTP_API STATUS _http_cache_etag(const char *etag, size_t etag_len,
const char *cache_control, size_t cc_len TSRMLS_DC)
{
char *sent_header = NULL;
if (SG(headers_sent)) {
return FAILURE;
}
if (cc_len && (SUCCESS != http_send_cache_control(cache_control, cc_len))) {
return FAILURE;
}
if (etag_len) {
if (SUCCESS != http_send_etag_ex(etag, etag_len, &sent_header)) {
return FAILURE;
}
if (http_match_etag("HTTP_IF_NONE_MATCH", etag)) {
http_exit_ex(304, sent_header, NULL, 0);
} else {
STR_FREE(sent_header);
}
return SUCCESS;
}
/* start ob_etaghandler */
return http_start_ob_etaghandler();
}
/* {{{ void http_ob_etaghandler(char *, uint, char **, uint *, int) */
void _http_ob_etaghandler(char *output, uint output_len,
char **handled_output, uint *handled_output_len, int mode TSRMLS_DC)
{
/* passthru */
*handled_output_len = output_len;
*handled_output = estrndup(output, output_len);
/* are we supposed to run? */
if (HTTP_G->etag.started) {
/* initialize the etag context */
if (mode & PHP_OUTPUT_HANDLER_START) {
HTTP_G->etag.ctx = http_etag_init();
}
/* update */
http_etag_update(HTTP_G->etag.ctx, output, output_len);
/* finish */
if (mode & PHP_OUTPUT_HANDLER_END) {
char *sent_header = NULL;
char *etag = http_etag_finish(HTTP_G->etag.ctx);
HTTP_G->etag.ctx = NULL;
http_send_cache_control(HTTP_DEFAULT_CACHECONTROL, lenof(HTTP_DEFAULT_CACHECONTROL));
http_send_etag_ex(etag, strlen(etag), &sent_header);
if (http_match_etag("HTTP_IF_NONE_MATCH", etag)) {
/* force exit; ob within ob does not work */
HTTP_G->force_exit = 1;
http_exit_ex(304, sent_header, etag, 0);
}
STR_FREE(sent_header);
STR_FREE(etag);
}
}
}
