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ngx_cache_purge_module.c
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/*
* Copyright (c) 2009-2014, FRiCKLE <[email protected]>
* Copyright (c) 2009-2014, Piotr Sikora <[email protected]>
* All rights reserved.
*
* This project was fully funded by yo.se.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <ngx_config.h>
#include <nginx.h>
#include <ngx_core.h>
#include <ngx_http.h>
#ifndef nginx_version
#error This module cannot be build against an unknown nginx version.
#endif
#if (NGX_HTTP_CACHE)
typedef struct {
ngx_flag_t enable;
ngx_str_t method;
ngx_flag_t purge_all;
ngx_array_t *access; /* array of ngx_in_cidr_t */
ngx_array_t *access6; /* array of ngx_in6_cidr_t */
} ngx_http_cache_purge_conf_t;
typedef struct {
# if (NGX_HTTP_FASTCGI)
ngx_http_cache_purge_conf_t fastcgi;
# endif /* NGX_HTTP_FASTCGI */
# if (NGX_HTTP_PROXY)
ngx_http_cache_purge_conf_t proxy;
# endif /* NGX_HTTP_PROXY */
# if (NGX_HTTP_SCGI)
ngx_http_cache_purge_conf_t scgi;
# endif /* NGX_HTTP_SCGI */
# if (NGX_HTTP_UWSGI)
ngx_http_cache_purge_conf_t uwsgi;
# endif /* NGX_HTTP_UWSGI */
ngx_http_cache_purge_conf_t *conf;
ngx_http_handler_pt handler;
ngx_http_handler_pt original_handler;
} ngx_http_cache_purge_loc_conf_t;
# if (NGX_HTTP_FASTCGI)
char *ngx_http_fastcgi_cache_purge_conf(ngx_conf_t *cf,
ngx_command_t *cmd, void *conf);
ngx_int_t ngx_http_fastcgi_cache_purge_handler(ngx_http_request_t *r);
# endif /* NGX_HTTP_FASTCGI */
# if (NGX_HTTP_PROXY)
char *ngx_http_proxy_cache_purge_conf(ngx_conf_t *cf,
ngx_command_t *cmd, void *conf);
ngx_int_t ngx_http_proxy_cache_purge_handler(ngx_http_request_t *r);
# endif /* NGX_HTTP_PROXY */
# if (NGX_HTTP_SCGI)
char *ngx_http_scgi_cache_purge_conf(ngx_conf_t *cf,
ngx_command_t *cmd, void *conf);
ngx_int_t ngx_http_scgi_cache_purge_handler(ngx_http_request_t *r);
# endif /* NGX_HTTP_SCGI */
# if (NGX_HTTP_UWSGI)
char *ngx_http_uwsgi_cache_purge_conf(ngx_conf_t *cf,
ngx_command_t *cmd, void *conf);
ngx_int_t ngx_http_uwsgi_cache_purge_handler(ngx_http_request_t *r);
# endif /* NGX_HTTP_UWSGI */
static ngx_int_t
ngx_http_purge_file_cache_noop(ngx_tree_ctx_t *ctx, ngx_str_t *path);
static ngx_int_t
ngx_http_purge_file_cache_delete_file(ngx_tree_ctx_t *ctx, ngx_str_t *path);
ngx_int_t ngx_http_cache_purge_access_handler(ngx_http_request_t *r);
ngx_int_t ngx_http_cache_purge_access(ngx_array_t *a, ngx_array_t *a6,
struct sockaddr *s);
ngx_int_t ngx_http_cache_purge_send_response(ngx_http_request_t *r);
# if (nginx_version >= 1007009)
ngx_int_t ngx_http_cache_purge_cache_get(ngx_http_request_t *r,
ngx_http_upstream_t *u, ngx_http_file_cache_t **cache);
# endif /* nginx_version >= 1007009 */
ngx_int_t ngx_http_cache_purge_init(ngx_http_request_t *r,
ngx_http_file_cache_t *cache, ngx_http_complex_value_t *cache_key);
void ngx_http_cache_purge_handler(ngx_http_request_t *r);
ngx_int_t ngx_http_file_cache_purge(ngx_http_request_t *r);
void ngx_http_cache_purge_all(ngx_http_request_t *r, ngx_http_file_cache_t *cache);
void ngx_http_cache_purge_partial(ngx_http_request_t *r, ngx_http_file_cache_t *cache);
ngx_int_t ngx_http_cache_purge_is_partial(ngx_http_request_t *r);
char *ngx_http_cache_purge_conf(ngx_conf_t *cf,
ngx_http_cache_purge_conf_t *cpcf);
void *ngx_http_cache_purge_create_loc_conf(ngx_conf_t *cf);
char *ngx_http_cache_purge_merge_loc_conf(ngx_conf_t *cf,
void *parent, void *child);
static ngx_command_t ngx_http_cache_purge_module_commands[] = {
# if (NGX_HTTP_FASTCGI)
{ ngx_string("fastcgi_cache_purge"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
ngx_http_fastcgi_cache_purge_conf,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL },
# endif /* NGX_HTTP_FASTCGI */
# if (NGX_HTTP_PROXY)
{ ngx_string("proxy_cache_purge"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
ngx_http_proxy_cache_purge_conf,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL },
# endif /* NGX_HTTP_PROXY */
# if (NGX_HTTP_SCGI)
{ ngx_string("scgi_cache_purge"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
ngx_http_scgi_cache_purge_conf,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL },
# endif /* NGX_HTTP_SCGI */
# if (NGX_HTTP_UWSGI)
{ ngx_string("uwsgi_cache_purge"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
ngx_http_uwsgi_cache_purge_conf,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL },
# endif /* NGX_HTTP_UWSGI */
ngx_null_command
};
static ngx_http_module_t ngx_http_cache_purge_module_ctx = {
NULL, /* preconfiguration */
NULL, /* postconfiguration */
NULL, /* create main configuration */
NULL, /* init main configuration */
NULL, /* create server configuration */
NULL, /* merge server configuration */
ngx_http_cache_purge_create_loc_conf, /* create location configuration */
ngx_http_cache_purge_merge_loc_conf /* merge location configuration */
};
ngx_module_t ngx_http_cache_purge_module = {
NGX_MODULE_V1,
&ngx_http_cache_purge_module_ctx, /* module context */
ngx_http_cache_purge_module_commands, /* module directives */
NGX_HTTP_MODULE, /* module type */
NULL, /* init master */
NULL, /* init module */
NULL, /* init process */
NULL, /* init thread */
NULL, /* exit thread */
NULL, /* exit process */
NULL, /* exit master */
NGX_MODULE_V1_PADDING
};
static char ngx_http_cache_purge_success_page_top[] =
"<html>" CRLF
"<head><title>Successful purge</title></head>" CRLF
"<body bgcolor=\"white\">" CRLF
"<center><h1>Successful purge</h1>" CRLF
;
static char ngx_http_cache_purge_success_page_tail[] =
CRLF "</center>" CRLF
"<hr><center>" NGINX_VER "</center>" CRLF
"</body>" CRLF
"</html>" CRLF
;
# if (NGX_HTTP_FASTCGI)
extern ngx_module_t ngx_http_fastcgi_module;
# if (nginx_version >= 1007009)
typedef struct {
ngx_array_t caches; /* ngx_http_file_cache_t * */
} ngx_http_fastcgi_main_conf_t;
# endif /* nginx_version >= 1007009 */
# if (nginx_version >= 1007008)
typedef struct {
ngx_array_t *flushes;
ngx_array_t *lengths;
ngx_array_t *values;
ngx_uint_t number;
ngx_hash_t hash;
} ngx_http_fastcgi_params_t;
# endif /* nginx_version >= 1007008 */
typedef struct {
ngx_http_upstream_conf_t upstream;
ngx_str_t index;
# if (nginx_version >= 1007008)
ngx_http_fastcgi_params_t params;
ngx_http_fastcgi_params_t params_cache;
# else
ngx_array_t *flushes;
ngx_array_t *params_len;
ngx_array_t *params;
# endif /* nginx_version >= 1007008 */
ngx_array_t *params_source;
ngx_array_t *catch_stderr;
ngx_array_t *fastcgi_lengths;
ngx_array_t *fastcgi_values;
# if (nginx_version >= 8040) && (nginx_version < 1007008)
ngx_hash_t headers_hash;
ngx_uint_t header_params;
# endif /* nginx_version >= 8040 && nginx_version < 1007008 */
# if (nginx_version >= 1001004)
ngx_flag_t keep_conn;
# endif /* nginx_version >= 1001004 */
ngx_http_complex_value_t cache_key;
# if (NGX_PCRE)
ngx_regex_t *split_regex;
ngx_str_t split_name;
# endif /* NGX_PCRE */
} ngx_http_fastcgi_loc_conf_t;
char *
ngx_http_fastcgi_cache_purge_conf(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf)
{
ngx_http_compile_complex_value_t ccv;
ngx_http_cache_purge_loc_conf_t *cplcf;
ngx_http_core_loc_conf_t *clcf;
ngx_http_fastcgi_loc_conf_t *flcf;
ngx_str_t *value;
# if (nginx_version >= 1007009)
ngx_http_complex_value_t cv;
# endif /* nginx_version >= 1007009 */
cplcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_cache_purge_module);
/* check for duplicates / collisions */
if (cplcf->fastcgi.enable != NGX_CONF_UNSET) {
return "is duplicate";
}
if (cf->args->nelts != 3) {
return ngx_http_cache_purge_conf(cf, &cplcf->fastcgi);
}
if (cf->cmd_type & (NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF)) {
return "(separate location syntax) is not allowed here";
}
flcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_fastcgi_module);
# if (nginx_version >= 1007009)
if (flcf->upstream.cache > 0)
# else
if (flcf->upstream.cache != NGX_CONF_UNSET_PTR
&& flcf->upstream.cache != NULL)
# endif /* nginx_version >= 1007009 */
{
return "is incompatible with \"fastcgi_cache\"";
}
if (flcf->upstream.upstream || flcf->fastcgi_lengths) {
return "is incompatible with \"fastcgi_pass\"";
}
if (flcf->upstream.store > 0
# if (nginx_version < 1007009)
|| flcf->upstream.store_lengths
# endif /* nginx_version >= 1007009 */
)
{
return "is incompatible with \"fastcgi_store\"";
}
value = cf->args->elts;
/* set fastcgi_cache part */
# if (nginx_version >= 1007009)
flcf->upstream.cache = 1;
ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
ccv.cf = cf;
ccv.value = &value[1];
ccv.complex_value = &cv;
if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
return NGX_CONF_ERROR;
}
if (cv.lengths != NULL) {
flcf->upstream.cache_value = ngx_palloc(cf->pool,
sizeof(ngx_http_complex_value_t));
if (flcf->upstream.cache_value == NULL) {
return NGX_CONF_ERROR;
}
*flcf->upstream.cache_value = cv;
} else {
flcf->upstream.cache_zone = ngx_shared_memory_add(cf, &value[1], 0,
&ngx_http_fastcgi_module);
if (flcf->upstream.cache_zone == NULL) {
return NGX_CONF_ERROR;
}
}
# else
flcf->upstream.cache = ngx_shared_memory_add(cf, &value[1], 0,
&ngx_http_fastcgi_module);
if (flcf->upstream.cache == NULL) {
return NGX_CONF_ERROR;
}
# endif /* nginx_version >= 1007009 */
/* set fastcgi_cache_key part */
ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
ccv.cf = cf;
ccv.value = &value[2];
ccv.complex_value = &flcf->cache_key;
if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
return NGX_CONF_ERROR;
}
/* set handler */
clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
cplcf->fastcgi.enable = 0;
clcf->handler = ngx_http_fastcgi_cache_purge_handler;
return NGX_CONF_OK;
}
ngx_int_t
ngx_http_fastcgi_cache_purge_handler(ngx_http_request_t *r)
{
ngx_http_file_cache_t *cache;
ngx_http_fastcgi_loc_conf_t *flcf;
ngx_http_cache_purge_loc_conf_t *cplcf;
# if (nginx_version >= 1007009)
ngx_http_fastcgi_main_conf_t *fmcf;
ngx_int_t rc;
# endif /* nginx_version >= 1007009 */
if (ngx_http_upstream_create(r) != NGX_OK) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module);
r->upstream->conf = &flcf->upstream;
# if (nginx_version >= 1007009)
fmcf = ngx_http_get_module_main_conf(r, ngx_http_fastcgi_module);
r->upstream->caches = &fmcf->caches;
rc = ngx_http_cache_purge_cache_get(r, r->upstream, &cache);
if (rc != NGX_OK) {
return rc;
}
# else
cache = flcf->upstream.cache->data;
# endif /* nginx_version >= 1007009 */
if (ngx_http_cache_purge_init(r, cache, &flcf->cache_key) != NGX_OK) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
/* Purge-all option */
cplcf = ngx_http_get_module_loc_conf(r, ngx_http_cache_purge_module);
if (cplcf->conf->purge_all) {
ngx_http_cache_purge_all(r, cache);
}
else {
if (ngx_http_cache_purge_is_partial(r)) {
ngx_log_debug(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"http file cache purge with partial enabled");
ngx_http_cache_purge_partial(r, cache);
}
}
# if (nginx_version >= 8011)
r->main->count++;
# endif
ngx_http_cache_purge_handler(r);
return NGX_DONE;
}
# endif /* NGX_HTTP_FASTCGI */
# if (NGX_HTTP_PROXY)
extern ngx_module_t ngx_http_proxy_module;
typedef struct {
ngx_str_t key_start;
ngx_str_t schema;
ngx_str_t host_header;
ngx_str_t port;
ngx_str_t uri;
} ngx_http_proxy_vars_t;
# if (nginx_version >= 1007009)
typedef struct {
ngx_array_t caches; /* ngx_http_file_cache_t * */
} ngx_http_proxy_main_conf_t;
# endif /* nginx_version >= 1007009 */
# if (nginx_version >= 1007008)
typedef struct {
ngx_array_t *flushes;
ngx_array_t *lengths;
ngx_array_t *values;
ngx_hash_t hash;
} ngx_http_proxy_headers_t;
# endif /* nginx_version >= 1007008 */
typedef struct {
ngx_http_upstream_conf_t upstream;
# if (nginx_version >= 1007008)
ngx_array_t *body_flushes;
ngx_array_t *body_lengths;
ngx_array_t *body_values;
ngx_str_t body_source;
ngx_http_proxy_headers_t headers;
ngx_http_proxy_headers_t headers_cache;
# else
ngx_array_t *flushes;
ngx_array_t *body_set_len;
ngx_array_t *body_set;
ngx_array_t *headers_set_len;
ngx_array_t *headers_set;
ngx_hash_t headers_set_hash;
# endif /* nginx_version >= 1007008 */
ngx_array_t *headers_source;
# if (nginx_version < 8040)
ngx_array_t *headers_names;
# endif /* nginx_version < 8040 */
ngx_array_t *proxy_lengths;
ngx_array_t *proxy_values;
ngx_array_t *redirects;
# if (nginx_version >= 1001015)
ngx_array_t *cookie_domains;
ngx_array_t *cookie_paths;
# endif /* nginx_version >= 1001015 */
# if (nginx_version < 1007008)
ngx_str_t body_source;
# endif /* nginx_version < 1007008 */
# if (nginx_version >= 1011006)
ngx_http_complex_value_t *method;
# else
ngx_str_t method;
# endif /* nginx_version >= 1011006 */
ngx_str_t location;
ngx_str_t url;
ngx_http_complex_value_t cache_key;
ngx_http_proxy_vars_t vars;
ngx_flag_t redirect;
# if (nginx_version >= 1001004)
ngx_uint_t http_version;
# endif /* nginx_version >= 1001004 */
ngx_uint_t headers_hash_max_size;
ngx_uint_t headers_hash_bucket_size;
# if (NGX_HTTP_SSL)
# if (nginx_version >= 1005006)
ngx_uint_t ssl;
ngx_uint_t ssl_protocols;
ngx_str_t ssl_ciphers;
# endif /* nginx_version >= 1005006 */
# if (nginx_version >= 1007000)
ngx_uint_t ssl_verify_depth;
ngx_str_t ssl_trusted_certificate;
ngx_str_t ssl_crl;
# endif /* nginx_version >= 1007000 */
# if (nginx_version >= 1007008)
ngx_str_t ssl_certificate;
ngx_str_t ssl_certificate_key;
ngx_array_t *ssl_passwords;
# endif /* nginx_version >= 1007008 */
# endif
} ngx_http_proxy_loc_conf_t;
char *
ngx_http_proxy_cache_purge_conf(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_http_compile_complex_value_t ccv;
ngx_http_cache_purge_loc_conf_t *cplcf;
ngx_http_core_loc_conf_t *clcf;
ngx_http_proxy_loc_conf_t *plcf;
ngx_str_t *value;
# if (nginx_version >= 1007009)
ngx_http_complex_value_t cv;
# endif /* nginx_version >= 1007009 */
cplcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_cache_purge_module);
/* check for duplicates / collisions */
if (cplcf->proxy.enable != NGX_CONF_UNSET) {
return "is duplicate";
}
if (cf->args->nelts != 3) {
return ngx_http_cache_purge_conf(cf, &cplcf->proxy);
}
if (cf->cmd_type & (NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF)) {
return "(separate location syntax) is not allowed here";
}
plcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_proxy_module);
# if (nginx_version >= 1007009)
if (plcf->upstream.cache > 0)
# else
if (plcf->upstream.cache != NGX_CONF_UNSET_PTR
&& plcf->upstream.cache != NULL)
# endif /* nginx_version >= 1007009 */
{
return "is incompatible with \"proxy_cache\"";
}
if (plcf->upstream.upstream || plcf->proxy_lengths) {
return "is incompatible with \"proxy_pass\"";
}
if (plcf->upstream.store > 0
# if (nginx_version < 1007009)
|| plcf->upstream.store_lengths
# endif /* nginx_version >= 1007009 */
)
{
return "is incompatible with \"proxy_store\"";
}
value = cf->args->elts;
/* set proxy_cache part */
# if (nginx_version >= 1007009)
plcf->upstream.cache = 1;
ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
ccv.cf = cf;
ccv.value = &value[1];
ccv.complex_value = &cv;
if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
return NGX_CONF_ERROR;
}
if (cv.lengths != NULL) {
plcf->upstream.cache_value = ngx_palloc(cf->pool,
sizeof(ngx_http_complex_value_t));
if (plcf->upstream.cache_value == NULL) {
return NGX_CONF_ERROR;
}
*plcf->upstream.cache_value = cv;
} else {
plcf->upstream.cache_zone = ngx_shared_memory_add(cf, &value[1], 0,
&ngx_http_proxy_module);
if (plcf->upstream.cache_zone == NULL) {
return NGX_CONF_ERROR;
}
}
# else
plcf->upstream.cache = ngx_shared_memory_add(cf, &value[1], 0,
&ngx_http_proxy_module);
if (plcf->upstream.cache == NULL) {
return NGX_CONF_ERROR;
}
# endif /* nginx_version >= 1007009 */
/* set proxy_cache_key part */
ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
ccv.cf = cf;
ccv.value = &value[2];
ccv.complex_value = &plcf->cache_key;
if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
return NGX_CONF_ERROR;
}
/* set handler */
clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
cplcf->proxy.enable = 0;
clcf->handler = ngx_http_proxy_cache_purge_handler;
return NGX_CONF_OK;
}
ngx_int_t
ngx_http_proxy_cache_purge_handler(ngx_http_request_t *r)
{
ngx_http_file_cache_t *cache;
ngx_http_proxy_loc_conf_t *plcf;
ngx_http_cache_purge_loc_conf_t *cplcf;
# if (nginx_version >= 1007009)
ngx_http_proxy_main_conf_t *pmcf;
ngx_int_t rc;
# endif /* nginx_version >= 1007009 */
if (ngx_http_upstream_create(r) != NGX_OK) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
r->upstream->conf = &plcf->upstream;
# if (nginx_version >= 1007009)
pmcf = ngx_http_get_module_main_conf(r, ngx_http_proxy_module);
r->upstream->caches = &pmcf->caches;
rc = ngx_http_cache_purge_cache_get(r, r->upstream, &cache);
if (rc != NGX_OK) {
return rc;
}
# else
cache = plcf->upstream.cache->data;
# endif /* nginx_version >= 1007009 */
if (ngx_http_cache_purge_init(r, cache, &plcf->cache_key) != NGX_OK) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
/* Purge-all option */
cplcf = ngx_http_get_module_loc_conf(r, ngx_http_cache_purge_module);
if (cplcf->conf->purge_all) {
ngx_http_cache_purge_all(r, cache);
}
else {
if (ngx_http_cache_purge_is_partial(r)) {
ngx_log_debug(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"http file cache purge with partial enabled");
ngx_http_cache_purge_partial(r, cache);
}
}
# if (nginx_version >= 8011)
r->main->count++;
# endif
ngx_http_cache_purge_handler(r);
return NGX_DONE;
}
# endif /* NGX_HTTP_PROXY */
# if (NGX_HTTP_SCGI)
extern ngx_module_t ngx_http_scgi_module;
# if (nginx_version >= 1007009)
typedef struct {
ngx_array_t caches; /* ngx_http_file_cache_t * */
} ngx_http_scgi_main_conf_t;
# endif /* nginx_version >= 1007009 */
# if (nginx_version >= 1007008)
typedef struct {
ngx_array_t *flushes;
ngx_array_t *lengths;
ngx_array_t *values;
ngx_uint_t number;
ngx_hash_t hash;
} ngx_http_scgi_params_t;
# endif /* nginx_version >= 1007008 */
typedef struct {
ngx_http_upstream_conf_t upstream;
# if (nginx_version >= 1007008)
ngx_http_scgi_params_t params;
ngx_http_scgi_params_t params_cache;
ngx_array_t *params_source;
# else
ngx_array_t *flushes;
ngx_array_t *params_len;
ngx_array_t *params;
ngx_array_t *params_source;
ngx_hash_t headers_hash;
ngx_uint_t header_params;
# endif /* nginx_version >= 1007008 */
ngx_array_t *scgi_lengths;
ngx_array_t *scgi_values;
ngx_http_complex_value_t cache_key;
} ngx_http_scgi_loc_conf_t;
char *
ngx_http_scgi_cache_purge_conf(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_http_compile_complex_value_t ccv;
ngx_http_cache_purge_loc_conf_t *cplcf;
ngx_http_core_loc_conf_t *clcf;
ngx_http_scgi_loc_conf_t *slcf;
ngx_str_t *value;
# if (nginx_version >= 1007009)
ngx_http_complex_value_t cv;
# endif /* nginx_version >= 1007009 */
cplcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_cache_purge_module);
/* check for duplicates / collisions */
if (cplcf->scgi.enable != NGX_CONF_UNSET) {
return "is duplicate";
}
if (cf->args->nelts != 3) {
return ngx_http_cache_purge_conf(cf, &cplcf->scgi);
}
if (cf->cmd_type & (NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF)) {
return "(separate location syntax) is not allowed here";
}
slcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_scgi_module);
# if (nginx_version >= 1007009)
if (slcf->upstream.cache > 0)
# else
if (slcf->upstream.cache != NGX_CONF_UNSET_PTR
&& slcf->upstream.cache != NULL)
# endif /* nginx_version >= 1007009 */
{
return "is incompatible with \"scgi_cache\"";
}
if (slcf->upstream.upstream || slcf->scgi_lengths) {
return "is incompatible with \"scgi_pass\"";
}
if (slcf->upstream.store > 0
# if (nginx_version < 1007009)
|| slcf->upstream.store_lengths
# endif /* nginx_version >= 1007009 */
)
{
return "is incompatible with \"scgi_store\"";
}
value = cf->args->elts;
/* set scgi_cache part */
# if (nginx_version >= 1007009)
slcf->upstream.cache = 1;
ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
ccv.cf = cf;
ccv.value = &value[1];
ccv.complex_value = &cv;
if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
return NGX_CONF_ERROR;
}
if (cv.lengths != NULL) {
slcf->upstream.cache_value = ngx_palloc(cf->pool,
sizeof(ngx_http_complex_value_t));
if (slcf->upstream.cache_value == NULL) {
return NGX_CONF_ERROR;
}
*slcf->upstream.cache_value = cv;
} else {
slcf->upstream.cache_zone = ngx_shared_memory_add(cf, &value[1], 0,
&ngx_http_scgi_module);
if (slcf->upstream.cache_zone == NULL) {
return NGX_CONF_ERROR;
}
}
# else
slcf->upstream.cache = ngx_shared_memory_add(cf, &value[1], 0,
&ngx_http_scgi_module);
if (slcf->upstream.cache == NULL) {
return NGX_CONF_ERROR;
}
# endif /* nginx_version >= 1007009 */
/* set scgi_cache_key part */
ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
ccv.cf = cf;
ccv.value = &value[2];
ccv.complex_value = &slcf->cache_key;
if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
return NGX_CONF_ERROR;
}
/* set handler */
clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
cplcf->scgi.enable = 0;
clcf->handler = ngx_http_scgi_cache_purge_handler;
return NGX_CONF_OK;
}
ngx_int_t
ngx_http_scgi_cache_purge_handler(ngx_http_request_t *r)
{
ngx_http_file_cache_t *cache;
ngx_http_scgi_loc_conf_t *slcf;
ngx_http_cache_purge_loc_conf_t *cplcf;
# if (nginx_version >= 1007009)
ngx_http_scgi_main_conf_t *smcf;
ngx_int_t rc;
# endif /* nginx_version >= 1007009 */
if (ngx_http_upstream_create(r) != NGX_OK) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
slcf = ngx_http_get_module_loc_conf(r, ngx_http_scgi_module);
r->upstream->conf = &slcf->upstream;
# if (nginx_version >= 1007009)
smcf = ngx_http_get_module_main_conf(r, ngx_http_scgi_module);
r->upstream->caches = &smcf->caches;
rc = ngx_http_cache_purge_cache_get(r, r->upstream, &cache);
if (rc != NGX_OK) {
return rc;
}
# else
cache = slcf->upstream.cache->data;
# endif /* nginx_version >= 1007009 */
if (ngx_http_cache_purge_init(r, cache, &slcf->cache_key) != NGX_OK) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
/* Purge-all option */
cplcf = ngx_http_get_module_loc_conf(r, ngx_http_cache_purge_module);
if (cplcf->conf->purge_all) {
ngx_http_cache_purge_all(r, cache);
}
else {
if (ngx_http_cache_purge_is_partial(r)) {
ngx_log_debug(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"http file cache purge with partial enabled");
ngx_http_cache_purge_partial(r, cache);
}
}
# if (nginx_version >= 8011)
r->main->count++;
# endif
ngx_http_cache_purge_handler(r);
return NGX_DONE;
}
# endif /* NGX_HTTP_SCGI */
# if (NGX_HTTP_UWSGI)
extern ngx_module_t ngx_http_uwsgi_module;
# if (nginx_version >= 1007009)
typedef struct {
ngx_array_t caches; /* ngx_http_file_cache_t * */
} ngx_http_uwsgi_main_conf_t;
# endif /* nginx_version >= 1007009 */
# if (nginx_version >= 1007008)
typedef struct {
ngx_array_t *flushes;
ngx_array_t *lengths;
ngx_array_t *values;
ngx_uint_t number;
ngx_hash_t hash;
} ngx_http_uwsgi_params_t;
# endif /* nginx_version >= 1007008 */
typedef struct {
ngx_http_upstream_conf_t upstream;
# if (nginx_version >= 1007008)
ngx_http_uwsgi_params_t params;
ngx_http_uwsgi_params_t params_cache;
ngx_array_t *params_source;