forked from agile6v/ngx_cache_viewer
/
ngx_cache_viewer_module.c
1445 lines (1131 loc) · 42.3 KB
/
ngx_cache_viewer_module.c
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/*
* Copyright (C) agile6v
*/
#include <nginx.h>
#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_http.h>
#if (NGX_HTTP_CACHE)
typedef struct {
ngx_flag_t enable;
ngx_str_t method;
ngx_array_t *access; /* array of ngx_in_cidr_t */
ngx_array_t *access6; /* array of ngx_in6_cidr_t */
} ngx_http_cache_viewer_conf_t;
typedef struct {
# if (NGX_HTTP_FASTCGI)
ngx_http_cache_viewer_conf_t fastcgi;
# endif /* NGX_HTTP_FASTCGI */
# if (NGX_HTTP_PROXY)
ngx_http_cache_viewer_conf_t proxy;
# endif /* NGX_HTTP_PROXY */
# if (NGX_HTTP_SCGI)
ngx_http_cache_viewer_conf_t scgi;
# endif /* NGX_HTTP_SCGI */
# if (NGX_HTTP_UWSGI)
ngx_http_cache_viewer_conf_t uwsgi;
# endif /* NGX_HTTP_UWSGI */
ngx_http_cache_viewer_conf_t *conf;
ngx_http_handler_pt handler;
ngx_http_handler_pt original_handler;
} ngx_http_cache_viewer_loc_conf_t;
# if (NGX_HTTP_FASTCGI)
char *ngx_http_fastcgi_cache_viewer_conf(ngx_conf_t *cf,
ngx_command_t *cmd, void *conf);
ngx_int_t ngx_http_fastcgi_cache_viewer_handler(ngx_http_request_t *r);
# endif /* NGX_HTTP_FASTCGI */
# if (NGX_HTTP_PROXY)
char *ngx_http_proxy_cache_viewer_conf(ngx_conf_t *cf,
ngx_command_t *cmd, void *conf);
ngx_int_t ngx_http_proxy_cache_viewer_handler(ngx_http_request_t *r);
# endif /* NGX_HTTP_PROXY */
# if (NGX_HTTP_SCGI)
char *ngx_http_scgi_cache_viewer_conf(ngx_conf_t *cf,
ngx_command_t *cmd, void *conf);
ngx_int_t ngx_http_scgi_cache_viewer_handler(ngx_http_request_t *r);
# endif /* NGX_HTTP_SCGI */
# if (NGX_HTTP_UWSGI)
char *ngx_http_uwsgi_cache_viewer_conf(ngx_conf_t *cf,
ngx_command_t *cmd, void *conf);
ngx_int_t ngx_http_uwsgi_cache_viewer_handler(ngx_http_request_t *r);
# endif /* NGX_HTTP_UWSGI */
ngx_int_t ngx_http_cache_viewer_access_handler(ngx_http_request_t *r);
ngx_int_t ngx_http_cache_viewer_access(ngx_array_t *a, ngx_array_t *a6,
struct sockaddr *s);
ngx_int_t ngx_http_cache_viewer_send_response(ngx_http_request_t *r, ngx_uint_t flag);
ngx_int_t ngx_http_cache_viewer_init(ngx_http_request_t *r,
ngx_http_file_cache_t *cache, ngx_http_complex_value_t *cache_key);
void ngx_http_cache_viewer_handler(ngx_http_request_t *r);
ngx_int_t ngx_http_file_cache_viewer(ngx_http_request_t *r);
char *ngx_http_cache_viewer_conf(ngx_conf_t *cf,
ngx_http_cache_viewer_conf_t *cpcf);
void *ngx_http_cache_viewer_create_loc_conf(ngx_conf_t *cf);
char *ngx_http_cache_viewer_merge_loc_conf(ngx_conf_t *cf,
void *parent, void *child);
#if (NGX_DEBUG)
static ngx_uint_t ngx_http_viewer_cache_node_count(ngx_http_file_cache_t *cache);
#endif
static ngx_int_t ngx_http_viewer_cache_node_info(ngx_http_request_t *r, ngx_chain_t *out);
static ngx_int_t ngx_http_viewer_cache_shm_info(ngx_http_request_t *r, ngx_chain_t *out);
static ngx_command_t ngx_http_cache_viewer_module_commands[] = {
# if (NGX_HTTP_FASTCGI)
{ ngx_string("fastcgi_cache_viewer"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
ngx_http_fastcgi_cache_viewer_conf,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL },
# endif /* NGX_HTTP_FASTCGI */
# if (NGX_HTTP_PROXY)
{ ngx_string("proxy_cache_viewer"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
ngx_http_proxy_cache_viewer_conf,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL },
# endif /* NGX_HTTP_PROXY */
# if (NGX_HTTP_SCGI)
{ ngx_string("scgi_cache_viewer"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
ngx_http_scgi_cache_viewer_conf,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL },
# endif /* NGX_HTTP_SCGI */
# if (NGX_HTTP_UWSGI)
{ ngx_string("uwsgi_cache_viewer"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
ngx_http_uwsgi_cache_viewer_conf,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL },
# endif /* NGX_HTTP_UWSGI */
ngx_null_command
};
static ngx_http_module_t ngx_http_cache_viewer_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_viewer_create_loc_conf, /* create location configuration */
ngx_http_cache_viewer_merge_loc_conf /* merge location configuration */
};
ngx_module_t ngx_http_cache_viewer_module = {
NGX_MODULE_V1,
&ngx_http_cache_viewer_module_ctx, /* module context */
ngx_http_cache_viewer_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
};
#define NGX_VIEWER_LEN(STR) sizeof(STR) - 1
#define SYMBOL_SEPARATOR "-------------------------------------------"
#define SHM_TITLE_LINE "################## share memory ##################"
#define SHM_NAME_HDR "name: "
#define SHM_MEM_SIZE_HDR "mem size(Kb): "
#define SHM_DISK_BLKS_HDR "disk blocks: "
#define SHM_USED_DISK_BLKS_HDR "used disk blocks: "
#define SHM_DISK_BLK_SIZE_HDR "disk block size: "
#define SHM_NODE_INACTIVE_TIME "inactive time(s): "
#define SHM_PATH_HDR "cache path: "
#define SHM_FILE_COUNT_HDR "cache node count: "
#define CACHE_NODE_FILENAME "filename: "
#define CACHE_NODE_VALID_SEC "valid_sec: "
#define CACHE_NODE_COUNT "count: "
#define CACHE_NODE_USES "uses: "
#define CACHE_NODE_EXISTS "exists: "
#define CACHE_NODE_UPDATING "updating: "
#define CACHE_NODE_DELETING "deleting: "
#define CACHE_NODE_EXPIRE "expire(UTC): "
#define CACHE_NODE_BODYSTART "body_start: "
#define CACHE_NODE_FS_SIZE "fs_size(block): "
# if (NGX_HTTP_FASTCGI)
extern ngx_module_t ngx_http_fastcgi_module;
typedef struct {
ngx_http_upstream_conf_t upstream;
ngx_str_t index;
ngx_array_t *flushes;
ngx_array_t *params_len;
ngx_array_t *params;
ngx_array_t *params_source;
ngx_array_t *catch_stderr;
ngx_array_t *fastcgi_lengths;
ngx_array_t *fastcgi_values;
# if defined(nginx_version) && (nginx_version >= 8040)
ngx_hash_t headers_hash;
ngx_uint_t header_params;
# endif /* nginx_version >= 8040 */
# if defined(nginx_version) && (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_viewer_conf(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf)
{
ngx_http_compile_complex_value_t ccv;
ngx_http_cache_viewer_loc_conf_t *cplcf;
ngx_http_core_loc_conf_t *clcf;
ngx_http_fastcgi_loc_conf_t *flcf;
ngx_str_t *value;
cplcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_cache_viewer_module);
/* check for duplicates / collisions */
if (cplcf->fastcgi.enable != NGX_CONF_UNSET) {
return "is duplicate";
}
if (cf->args->nelts != 3) {
return ngx_http_cache_viewer_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 (flcf->upstream.cache != NGX_CONF_UNSET_PTR
&& flcf->upstream.cache != NULL)
{
return "is incompatible with \"fastcgi_cache\"";
}
if (flcf->upstream.upstream || flcf->fastcgi_lengths) {
return "is incompatible with \"fastcgi_pass\"";
}
if (flcf->upstream.store > 0 || flcf->upstream.store_lengths) {
return "is incompatible with \"fastcgi_store\"";
}
value = cf->args->elts;
/* set fastcgi_cache part */
flcf->upstream.cache = ngx_shared_memory_add(cf, &value[1], 0,
&ngx_http_fastcgi_module);
if (flcf->upstream.cache == NULL) {
return NGX_CONF_ERROR;
}
/* 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_viewer_handler;
return NGX_CONF_OK;
}
ngx_int_t
ngx_http_fastcgi_cache_viewer_handler(ngx_http_request_t *r)
{
ngx_http_fastcgi_loc_conf_t *flcf;
flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module);
if (ngx_http_cache_viewer_init(r, flcf->upstream.cache->data,
&flcf->cache_key)
!= NGX_OK)
{
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
# if defined(nginx_version) && (nginx_version >= 8011)
r->main->count++;
# endif
ngx_http_cache_viewer_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;
typedef struct {
ngx_http_upstream_conf_t upstream;
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;
ngx_array_t *headers_source;
# if defined(nginx_version) && (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 defined(nginx_version) && (nginx_version >= 1001015)
ngx_array_t *cookie_domains;
ngx_array_t *cookie_paths;
# endif /* nginx_version >= 1001015 */
ngx_str_t body_source;
ngx_str_t method;
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 defined(nginx_version) && (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;
} ngx_http_proxy_loc_conf_t;
char *
ngx_http_proxy_cache_viewer_conf(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_http_compile_complex_value_t ccv;
ngx_http_cache_viewer_loc_conf_t *cplcf;
ngx_http_core_loc_conf_t *clcf;
ngx_http_proxy_loc_conf_t *plcf;
ngx_str_t *value;
cplcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_cache_viewer_module);
/* check for duplicates / collisions */
if (cplcf->proxy.enable != NGX_CONF_UNSET) {
return "is duplicate";
}
if (cf->args->nelts != 3) {
return ngx_http_cache_viewer_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 (plcf->upstream.cache != NGX_CONF_UNSET_PTR
&& plcf->upstream.cache != NULL)
{
return "is incompatible with \"proxy_cache\"";
}
if (plcf->upstream.upstream || plcf->proxy_lengths) {
return "is incompatible with \"proxy_pass\"";
}
if (plcf->upstream.store > 0 || plcf->upstream.store_lengths) {
return "is incompatible with \"proxy_store\"";
}
value = cf->args->elts;
/* set proxy_cache part */
plcf->upstream.cache = ngx_shared_memory_add(cf, &value[1], 0,
&ngx_http_proxy_module);
if (plcf->upstream.cache == NULL) {
return NGX_CONF_ERROR;
}
/* 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_viewer_handler;
return NGX_CONF_OK;
}
ngx_int_t
ngx_http_proxy_cache_viewer_handler(ngx_http_request_t *r)
{
ngx_http_proxy_loc_conf_t *plcf;
plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
if (ngx_http_cache_viewer_init(r, plcf->upstream.cache->data,
&plcf->cache_key)
!= NGX_OK)
{
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
# if defined(nginx_version) && (nginx_version >= 8011)
r->main->count++;
# endif
ngx_http_cache_viewer_handler(r);
return NGX_DONE;
}
# endif /* NGX_HTTP_PROXY */
# if (NGX_HTTP_SCGI)
extern ngx_module_t ngx_http_scgi_module;
typedef struct {
ngx_http_upstream_conf_t upstream;
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;
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_viewer_conf(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_http_compile_complex_value_t ccv;
ngx_http_cache_viewer_loc_conf_t *cplcf;
ngx_http_core_loc_conf_t *clcf;
ngx_http_scgi_loc_conf_t *slcf;
ngx_str_t *value;
cplcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_cache_viewer_module);
/* check for duplicates / collisions */
if (cplcf->scgi.enable != NGX_CONF_UNSET) {
return "is duplicate";
}
if (cf->args->nelts != 3) {
return ngx_http_cache_viewer_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 (slcf->upstream.cache != NGX_CONF_UNSET_PTR
&& slcf->upstream.cache != NULL)
{
return "is incompatible with \"scgi_cache\"";
}
if (slcf->upstream.upstream || slcf->scgi_lengths) {
return "is incompatible with \"scgi_pass\"";
}
if (slcf->upstream.store > 0 || slcf->upstream.store_lengths) {
return "is incompatible with \"scgi_store\"";
}
value = cf->args->elts;
/* set scgi_cache part */
slcf->upstream.cache = ngx_shared_memory_add(cf, &value[1], 0,
&ngx_http_scgi_module);
if (slcf->upstream.cache == NULL) {
return NGX_CONF_ERROR;
}
/* 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_viewer_handler;
return NGX_CONF_OK;
}
ngx_int_t
ngx_http_scgi_cache_viewer_handler(ngx_http_request_t *r)
{
ngx_http_scgi_loc_conf_t *slcf;
slcf = ngx_http_get_module_loc_conf(r, ngx_http_scgi_module);
if (ngx_http_cache_viewer_init(r, slcf->upstream.cache->data,
&slcf->cache_key)
!= NGX_OK)
{
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
# if defined(nginx_version) && (nginx_version >= 8011)
r->main->count++;
# endif
ngx_http_cache_viewer_handler(r);
return NGX_DONE;
}
# endif /* NGX_HTTP_SCGI */
# if (NGX_HTTP_UWSGI)
extern ngx_module_t ngx_http_uwsgi_module;
typedef struct {
ngx_http_upstream_conf_t upstream;
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;
ngx_array_t *uwsgi_lengths;
ngx_array_t *uwsgi_values;
ngx_http_complex_value_t cache_key;
ngx_str_t uwsgi_string;
ngx_uint_t modifier1;
ngx_uint_t modifier2;
} ngx_http_uwsgi_loc_conf_t;
char *
ngx_http_uwsgi_cache_viewer_conf(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_http_compile_complex_value_t ccv;
ngx_http_cache_viewer_loc_conf_t *cplcf;
ngx_http_core_loc_conf_t *clcf;
ngx_http_uwsgi_loc_conf_t *ulcf;
ngx_str_t *value;
cplcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_cache_viewer_module);
/* check for duplicates / collisions */
if (cplcf->uwsgi.enable != NGX_CONF_UNSET) {
return "is duplicate";
}
if (cf->args->nelts != 3) {
return ngx_http_cache_viewer_conf(cf, &cplcf->uwsgi);
}
if (cf->cmd_type & (NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF)) {
return "(separate location syntax) is not allowed here";
}
ulcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_uwsgi_module);
if (ulcf->upstream.cache != NGX_CONF_UNSET_PTR
&& ulcf->upstream.cache != NULL)
{
return "is incompatible with \"uwsgi_cache\"";
}
if (ulcf->upstream.upstream || ulcf->uwsgi_lengths) {
return "is incompatible with \"uwsgi_pass\"";
}
if (ulcf->upstream.store > 0 || ulcf->upstream.store_lengths) {
return "is incompatible with \"uwsgi_store\"";
}
value = cf->args->elts;
/* set uwsgi_cache part */
ulcf->upstream.cache = ngx_shared_memory_add(cf, &value[1], 0,
&ngx_http_uwsgi_module);
if (ulcf->upstream.cache == NULL) {
return NGX_CONF_ERROR;
}
/* set uwsgi_cache_key part */
ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
ccv.cf = cf;
ccv.value = &value[2];
ccv.complex_value = &ulcf->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->uwsgi.enable = 0;
clcf->handler = ngx_http_uwsgi_cache_viewer_handler;
return NGX_CONF_OK;
}
ngx_int_t
ngx_http_uwsgi_cache_viewer_handler(ngx_http_request_t *r)
{
ngx_http_uwsgi_loc_conf_t *ulcf;
ulcf = ngx_http_get_module_loc_conf(r, ngx_http_uwsgi_module);
if (ngx_http_cache_viewer_init(r, ulcf->upstream.cache->data,
&ulcf->cache_key)
!= NGX_OK)
{
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
# if defined(nginx_version) && (nginx_version >= 8011)
r->main->count++;
# endif
ngx_http_cache_viewer_handler(r);
return NGX_DONE;
}
# endif /* NGX_HTTP_UWSGI */
ngx_int_t
ngx_http_cache_viewer_access_handler(ngx_http_request_t *r)
{
ngx_http_cache_viewer_loc_conf_t *cplcf;
cplcf = ngx_http_get_module_loc_conf(r, ngx_http_cache_viewer_module);
if (r->method_name.len != cplcf->conf->method.len
|| (ngx_strncmp(r->method_name.data, cplcf->conf->method.data,
r->method_name.len)))
{
return cplcf->original_handler(r);
}
if ((cplcf->conf->access || cplcf->conf->access6)
&& ngx_http_cache_viewer_access(cplcf->conf->access,
cplcf->conf->access6,
r->connection->sockaddr) != NGX_OK)
{
return NGX_HTTP_FORBIDDEN;
}
if (cplcf->handler == NULL) {
return NGX_HTTP_NOT_FOUND;
}
return cplcf->handler(r);
}
ngx_int_t
ngx_http_cache_viewer_access(ngx_array_t *access, ngx_array_t *access6,
struct sockaddr *s)
{
in_addr_t inaddr;
ngx_in_cidr_t *a;
ngx_uint_t i;
# if (NGX_HAVE_INET6)
struct in6_addr *inaddr6;
ngx_in6_cidr_t *a6;
u_char *p;
ngx_uint_t n;
# endif /* NGX_HAVE_INET6 */
switch (s->sa_family) {
case AF_INET:
if (access == NULL) {
return NGX_DECLINED;
}
inaddr = ((struct sockaddr_in *) s)->sin_addr.s_addr;
# if (NGX_HAVE_INET6)
ipv4:
# endif /* NGX_HAVE_INET6 */
a = access->elts;
for (i = 0; i < access->nelts; i++) {
if ((inaddr & a[i].mask) == a[i].addr) {
return NGX_OK;
}
}
return NGX_DECLINED;
# if (NGX_HAVE_INET6)
case AF_INET6:
inaddr6 = &((struct sockaddr_in6 *) s)->sin6_addr;
p = inaddr6->s6_addr;
if (access && IN6_IS_ADDR_V4MAPPED(inaddr6)) {
inaddr = p[12] << 24;
inaddr += p[13] << 16;
inaddr += p[14] << 8;
inaddr += p[15];
inaddr = htonl(inaddr);
goto ipv4;
}
if (access6 == NULL) {
return NGX_DECLINED;
}
a6 = access6->elts;
for (i = 0; i < access6->nelts; i++) {
for (n = 0; n < 16; n++) {
if ((p[n] & a6[i].mask.s6_addr[n]) != a6[i].addr.s6_addr[n]) {
goto next;
}
}
return NGX_OK;
next:
continue;
}
return NGX_DECLINED;
# endif /* NGX_HAVE_INET6 */
}
return NGX_DECLINED;
}
#if (NGX_DEBUG)
static ngx_uint_t
ngx_http_viewer_cache_node_count(ngx_http_file_cache_t *cache)
{
ngx_queue_t *q;
ngx_uint_t count;
ngx_http_file_cache_node_t *fcn;
count = 0;
ngx_shmtx_lock(&cache->shpool->mutex);
for (q = ngx_queue_last(&cache->sh->queue);
q != ngx_queue_sentinel(&cache->sh->queue);
q = ngx_queue_prev(q))
{
fcn = ngx_queue_data(q, ngx_http_file_cache_node_t, queue);
ngx_log_debug6(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0,
"http viewer file cache: #%d %d %02xd%02xd%02xd%02xd",
fcn->count, fcn->exists,
fcn->key[0], fcn->key[1], fcn->key[2], fcn->key[3]);
count++;
}
ngx_shmtx_unlock(&cache->shpool->mutex);
return count;
}
#endif
static ngx_int_t
ngx_http_viewer_cache_shm_info(ngx_http_request_t *r, ngx_chain_t *out)
{
size_t len;
ngx_buf_t *b;
ngx_http_file_cache_t *cache;
ngx_shm_zone_t *shm_zone;
cache = r->cache->file_cache;
shm_zone = cache->shm_zone;
len = NGX_VIEWER_LEN(SHM_TITLE_LINE) + NGX_VIEWER_LEN(CRLF) +
NGX_VIEWER_LEN(SHM_NAME_HDR) + shm_zone->shm.name.len + NGX_VIEWER_LEN(CRLF) +
NGX_VIEWER_LEN(SHM_MEM_SIZE_HDR) + NGX_OFF_T_LEN + NGX_VIEWER_LEN(CRLF) +
NGX_VIEWER_LEN(SHM_DISK_BLKS_HDR) + NGX_OFF_T_LEN + NGX_VIEWER_LEN(CRLF) +
NGX_VIEWER_LEN(SHM_USED_DISK_BLKS_HDR) + NGX_OFF_T_LEN + NGX_VIEWER_LEN(CRLF) +
NGX_VIEWER_LEN(SHM_DISK_BLK_SIZE_HDR) + NGX_OFF_T_LEN + NGX_VIEWER_LEN(CRLF) +
NGX_VIEWER_LEN(SHM_NODE_INACTIVE_TIME) + NGX_OFF_T_LEN + NGX_VIEWER_LEN(CRLF) +
#if (NGX_DEBUG)
NGX_VIEWER_LEN(SHM_FILE_COUNT_HDR) + NGX_OFF_T_LEN + NGX_VIEWER_LEN(CRLF) +
#endif
NGX_VIEWER_LEN(SHM_PATH_HDR) + cache->path->len + NGX_VIEWER_LEN(CRLF);
b = ngx_create_temp_buf(r->pool, len);
if (b == NULL) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
// shm title line
b->last = ngx_sprintf(b->last, SHM_TITLE_LINE CRLF);
// shm name
b->last = ngx_sprintf(b->last, SHM_NAME_HDR "%V" CRLF, &shm_zone->shm.name);
// shm memory size
b->last = ngx_sprintf(b->last, SHM_MEM_SIZE_HDR "%z" CRLF, (shm_zone->shm.size / 1024));
#if (NGX_DEBUG)
// node count
b->last = ngx_sprintf(b->last, SHM_FILE_COUNT_HDR "%ud" CRLF,
ngx_http_viewer_cache_node_count(cache));
#endif
// cache path
b->last = ngx_sprintf(b->last, SHM_PATH_HDR "%V" CRLF, &cache->path->name);
// disk blocks count
b->last = ngx_sprintf(b->last, SHM_DISK_BLKS_HDR "%O" CRLF, cache->max_size);
// used disk blocks
ngx_shmtx_lock(&cache->shpool->mutex);
b->last = ngx_sprintf(b->last, SHM_USED_DISK_BLKS_HDR "%O" CRLF, cache->sh->size);
ngx_shmtx_unlock(&cache->shpool->mutex);
// disk block size
b->last = ngx_sprintf(b->last, SHM_DISK_BLK_SIZE_HDR "%z" CRLF, cache->bsize);
// node inactive time
b->last = ngx_sprintf(b->last, SHM_NODE_INACTIVE_TIME "%T" CRLF, cache->inactive);
b->last = ngx_sprintf(b->last, SYMBOL_SEPARATOR CRLF);
out->buf = b;
out->next = NULL;
return NGX_OK;
}
static ngx_int_t
ngx_http_viewer_cache_node_info(ngx_http_request_t *r, ngx_chain_t *out)
{
ngx_http_file_cache_t *cache;
ngx_http_cache_t *c;
ngx_uint_t exists;
size_t len;
ngx_buf_t *b;
len = 0;
c = r->cache;
cache = c->file_cache;
if (c->node) {
ngx_shmtx_lock(&cache->shpool->mutex);
exists = c->node->exists;
ngx_shmtx_unlock(&cache->shpool->mutex);
if (exists) {
len = NGX_VIEWER_LEN(CACHE_NODE_FILENAME) + c->file.name.len + NGX_VIEWER_LEN(CRLF);
}
len += NGX_VIEWER_LEN(CACHE_NODE_VALID_SEC) + NGX_OFF_T_LEN + NGX_VIEWER_LEN(CRLF)
+ NGX_VIEWER_LEN(CACHE_NODE_COUNT) + NGX_OFF_T_LEN + NGX_VIEWER_LEN(CRLF)
+ NGX_VIEWER_LEN(CACHE_NODE_USES) + NGX_OFF_T_LEN + NGX_VIEWER_LEN(CRLF)
+ NGX_VIEWER_LEN(CACHE_NODE_EXPIRE) + NGX_OFF_T_LEN + NGX_VIEWER_LEN(CRLF)
+ NGX_VIEWER_LEN(CACHE_NODE_BODYSTART) + NGX_OFF_T_LEN + NGX_VIEWER_LEN(CRLF)
+ NGX_VIEWER_LEN(CACHE_NODE_FS_SIZE) + NGX_OFF_T_LEN + NGX_VIEWER_LEN(CRLF)
+ NGX_VIEWER_LEN(CACHE_NODE_EXISTS) + 1 + NGX_VIEWER_LEN(CRLF)
+ NGX_VIEWER_LEN(CACHE_NODE_UPDATING) + 1 + NGX_VIEWER_LEN(CRLF)
+ NGX_VIEWER_LEN(CACHE_NODE_DELETING) + 1 + NGX_VIEWER_LEN(CRLF);
} else {
return NGX_HTTP_NOT_FOUND;
}
b = ngx_create_temp_buf(r->pool, len);
if (b == NULL) {
return NGX_ERROR;
}
if (exists) {
// cache filename
b->last = ngx_sprintf(b->last, CACHE_NODE_FILENAME "%V" CRLF, &c->file.name);
}
ngx_shmtx_lock(&cache->shpool->mutex);
// cache valid second
b->last = ngx_sprintf(b->last, CACHE_NODE_VALID_SEC "%T" CRLF, c->node->valid_sec);
// cache count
b->last = ngx_sprintf(b->last, CACHE_NODE_COUNT "%ui" CRLF, c->node->count);
// cache uses
b->last = ngx_sprintf(b->last, CACHE_NODE_USES "%ui" CRLF, c->node->uses);
// cache expire
b->last = ngx_sprintf(b->last, CACHE_NODE_EXPIRE "%T" CRLF, c->node->expire);
if (exists) {
// cache body_start
b->last = ngx_sprintf(b->last, CACHE_NODE_BODYSTART "%z" CRLF, c->node->body_start);
// cache fs_size
b->last = ngx_sprintf(b->last, CACHE_NODE_FS_SIZE "%O" CRLF, c->node->fs_size);
}
// cache exists
b->last = ngx_sprintf(b->last, CACHE_NODE_EXISTS "%ui" CRLF, exists);
// cache updating
b->last = ngx_sprintf(b->last, CACHE_NODE_UPDATING "%ui" CRLF, c->node->updating);
// cache deleting
b->last = ngx_sprintf(b->last, CACHE_NODE_DELETING "%ui" CRLF, c->node->deleting);
ngx_shmtx_unlock(&cache->shpool->mutex);
out->buf = b;
out->next = NULL;
return NGX_OK;
}
ngx_int_t
ngx_http_cache_viewer_send_response(ngx_http_request_t *r, ngx_uint_t flag)
{
ngx_chain_t shm_out, node_out;
ngx_int_t rc;
size_t len;
len = 0;
if (flag) {
rc = ngx_http_viewer_cache_node_info(r, &node_out);
if (rc == NGX_ERROR) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
if (rc == NGX_HTTP_NOT_FOUND) {
return rc;
}
}
rc = ngx_http_viewer_cache_shm_info(r, &shm_out);
if (rc != NGX_OK) {
return rc;
}