diff options
Diffstat (limited to 'app/nginx/src/http/ngx_http_variables.c')
-rw-r--r-- | app/nginx/src/http/ngx_http_variables.c | 2685 |
1 files changed, 2685 insertions, 0 deletions
diff --git a/app/nginx/src/http/ngx_http_variables.c b/app/nginx/src/http/ngx_http_variables.c new file mode 100644 index 0000000..6138819 --- /dev/null +++ b/app/nginx/src/http/ngx_http_variables.c @@ -0,0 +1,2685 @@ + +/* + * Copyright (C) Igor Sysoev + * Copyright (C) Nginx, Inc. + */ + + +#include <ngx_config.h> +#include <ngx_core.h> +#include <ngx_http.h> +#include <nginx.h> + + +static ngx_http_variable_t *ngx_http_add_prefix_variable(ngx_conf_t *cf, + ngx_str_t *name, ngx_uint_t flags); + +static ngx_int_t ngx_http_variable_request(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +#if 0 +static void ngx_http_variable_request_set(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +#endif +static ngx_int_t ngx_http_variable_request_get_size(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static void ngx_http_variable_request_set_size(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_header(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); + +static ngx_int_t ngx_http_variable_cookies(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_headers(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_headers_internal(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data, u_char sep); + +static ngx_int_t ngx_http_variable_unknown_header_in(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_unknown_header_out(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_request_line(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_cookie(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_argument(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +#if (NGX_HAVE_TCP_INFO) +static ngx_int_t ngx_http_variable_tcpinfo(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +#endif + +static ngx_int_t ngx_http_variable_content_length(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_host(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_binary_remote_addr(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_remote_addr(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_remote_port(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_proxy_protocol_addr(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_proxy_protocol_port(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_server_addr(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_server_port(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_scheme(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_https(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static void ngx_http_variable_set_args(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_is_args(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_document_root(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_realpath_root(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_request_filename(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_server_name(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_request_method(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_remote_user(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_bytes_sent(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_body_bytes_sent(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_pipe(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_request_completion(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_request_body(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_request_body_file(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_request_length(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_request_time(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_request_id(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_status(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); + +static ngx_int_t ngx_http_variable_sent_content_type(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_sent_content_length(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_sent_location(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_sent_last_modified(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_sent_connection(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_sent_keep_alive(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); + +static ngx_int_t ngx_http_variable_connection(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_connection_requests(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); + +static ngx_int_t ngx_http_variable_nginx_version(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_hostname(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_pid(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_msec(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_time_iso8601(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); +static ngx_int_t ngx_http_variable_time_local(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data); + +/* + * TODO: + * Apache CGI: AUTH_TYPE, PATH_INFO (null), PATH_TRANSLATED + * REMOTE_HOST (null), REMOTE_IDENT (null), + * SERVER_SOFTWARE + * + * Apache SSI: DOCUMENT_NAME, LAST_MODIFIED, USER_NAME (file owner) + */ + +/* + * the $http_host, $http_user_agent, $http_referer, and $http_via + * variables may be handled by generic + * ngx_http_variable_unknown_header_in(), but for performance reasons + * they are handled using dedicated entries + */ + +static ngx_http_variable_t ngx_http_core_variables[] = { + + { ngx_string("http_host"), NULL, ngx_http_variable_header, + offsetof(ngx_http_request_t, headers_in.host), 0, 0 }, + + { ngx_string("http_user_agent"), NULL, ngx_http_variable_header, + offsetof(ngx_http_request_t, headers_in.user_agent), 0, 0 }, + + { ngx_string("http_referer"), NULL, ngx_http_variable_header, + offsetof(ngx_http_request_t, headers_in.referer), 0, 0 }, + +#if (NGX_HTTP_GZIP) + { ngx_string("http_via"), NULL, ngx_http_variable_header, + offsetof(ngx_http_request_t, headers_in.via), 0, 0 }, +#endif + +#if (NGX_HTTP_X_FORWARDED_FOR) + { ngx_string("http_x_forwarded_for"), NULL, ngx_http_variable_headers, + offsetof(ngx_http_request_t, headers_in.x_forwarded_for), 0, 0 }, +#endif + + { ngx_string("http_cookie"), NULL, ngx_http_variable_cookies, + offsetof(ngx_http_request_t, headers_in.cookies), 0, 0 }, + + { ngx_string("content_length"), NULL, ngx_http_variable_content_length, + 0, 0, 0 }, + + { ngx_string("content_type"), NULL, ngx_http_variable_header, + offsetof(ngx_http_request_t, headers_in.content_type), 0, 0 }, + + { ngx_string("host"), NULL, ngx_http_variable_host, 0, 0, 0 }, + + { ngx_string("binary_remote_addr"), NULL, + ngx_http_variable_binary_remote_addr, 0, 0, 0 }, + + { ngx_string("remote_addr"), NULL, ngx_http_variable_remote_addr, 0, 0, 0 }, + + { ngx_string("remote_port"), NULL, ngx_http_variable_remote_port, 0, 0, 0 }, + + { ngx_string("proxy_protocol_addr"), NULL, + ngx_http_variable_proxy_protocol_addr, 0, 0, 0 }, + + { ngx_string("proxy_protocol_port"), NULL, + ngx_http_variable_proxy_protocol_port, 0, 0, 0 }, + + { ngx_string("server_addr"), NULL, ngx_http_variable_server_addr, 0, 0, 0 }, + + { ngx_string("server_port"), NULL, ngx_http_variable_server_port, 0, 0, 0 }, + + { ngx_string("server_protocol"), NULL, ngx_http_variable_request, + offsetof(ngx_http_request_t, http_protocol), 0, 0 }, + + { ngx_string("scheme"), NULL, ngx_http_variable_scheme, 0, 0, 0 }, + + { ngx_string("https"), NULL, ngx_http_variable_https, 0, 0, 0 }, + + { ngx_string("request_uri"), NULL, ngx_http_variable_request, + offsetof(ngx_http_request_t, unparsed_uri), 0, 0 }, + + { ngx_string("uri"), NULL, ngx_http_variable_request, + offsetof(ngx_http_request_t, uri), + NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("document_uri"), NULL, ngx_http_variable_request, + offsetof(ngx_http_request_t, uri), + NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("request"), NULL, ngx_http_variable_request_line, 0, 0, 0 }, + + { ngx_string("document_root"), NULL, + ngx_http_variable_document_root, 0, NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("realpath_root"), NULL, + ngx_http_variable_realpath_root, 0, NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("query_string"), NULL, ngx_http_variable_request, + offsetof(ngx_http_request_t, args), + NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("args"), + ngx_http_variable_set_args, + ngx_http_variable_request, + offsetof(ngx_http_request_t, args), + NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("is_args"), NULL, ngx_http_variable_is_args, + 0, NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("request_filename"), NULL, + ngx_http_variable_request_filename, 0, + NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("server_name"), NULL, ngx_http_variable_server_name, 0, 0, 0 }, + + { ngx_string("request_method"), NULL, + ngx_http_variable_request_method, 0, + NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("remote_user"), NULL, ngx_http_variable_remote_user, 0, 0, 0 }, + + { ngx_string("bytes_sent"), NULL, ngx_http_variable_bytes_sent, + 0, 0, 0 }, + + { ngx_string("body_bytes_sent"), NULL, ngx_http_variable_body_bytes_sent, + 0, 0, 0 }, + + { ngx_string("pipe"), NULL, ngx_http_variable_pipe, + 0, 0, 0 }, + + { ngx_string("request_completion"), NULL, + ngx_http_variable_request_completion, + 0, 0, 0 }, + + { ngx_string("request_body"), NULL, + ngx_http_variable_request_body, + 0, 0, 0 }, + + { ngx_string("request_body_file"), NULL, + ngx_http_variable_request_body_file, + 0, 0, 0 }, + + { ngx_string("request_length"), NULL, ngx_http_variable_request_length, + 0, NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("request_time"), NULL, ngx_http_variable_request_time, + 0, NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("request_id"), NULL, + ngx_http_variable_request_id, + 0, 0, 0 }, + + { ngx_string("status"), NULL, + ngx_http_variable_status, 0, + NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("sent_http_content_type"), NULL, + ngx_http_variable_sent_content_type, 0, 0, 0 }, + + { ngx_string("sent_http_content_length"), NULL, + ngx_http_variable_sent_content_length, 0, 0, 0 }, + + { ngx_string("sent_http_location"), NULL, + ngx_http_variable_sent_location, 0, 0, 0 }, + + { ngx_string("sent_http_last_modified"), NULL, + ngx_http_variable_sent_last_modified, 0, 0, 0 }, + + { ngx_string("sent_http_connection"), NULL, + ngx_http_variable_sent_connection, 0, 0, 0 }, + + { ngx_string("sent_http_keep_alive"), NULL, + ngx_http_variable_sent_keep_alive, 0, 0, 0 }, + + { ngx_string("sent_http_transfer_encoding"), NULL, + ngx_http_variable_sent_transfer_encoding, 0, 0, 0 }, + + { ngx_string("sent_http_cache_control"), NULL, ngx_http_variable_headers, + offsetof(ngx_http_request_t, headers_out.cache_control), 0, 0 }, + + { ngx_string("limit_rate"), ngx_http_variable_request_set_size, + ngx_http_variable_request_get_size, + offsetof(ngx_http_request_t, limit_rate), + NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("connection"), NULL, + ngx_http_variable_connection, 0, 0, 0 }, + + { ngx_string("connection_requests"), NULL, + ngx_http_variable_connection_requests, 0, 0, 0 }, + + { ngx_string("nginx_version"), NULL, ngx_http_variable_nginx_version, + 0, 0, 0 }, + + { ngx_string("hostname"), NULL, ngx_http_variable_hostname, + 0, 0, 0 }, + + { ngx_string("pid"), NULL, ngx_http_variable_pid, + 0, 0, 0 }, + + { ngx_string("msec"), NULL, ngx_http_variable_msec, + 0, NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("time_iso8601"), NULL, ngx_http_variable_time_iso8601, + 0, NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("time_local"), NULL, ngx_http_variable_time_local, + 0, NGX_HTTP_VAR_NOCACHEABLE, 0 }, + +#if (NGX_HAVE_TCP_INFO) + { ngx_string("tcpinfo_rtt"), NULL, ngx_http_variable_tcpinfo, + 0, NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("tcpinfo_rttvar"), NULL, ngx_http_variable_tcpinfo, + 1, NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("tcpinfo_snd_cwnd"), NULL, ngx_http_variable_tcpinfo, + 2, NGX_HTTP_VAR_NOCACHEABLE, 0 }, + + { ngx_string("tcpinfo_rcv_space"), NULL, ngx_http_variable_tcpinfo, + 3, NGX_HTTP_VAR_NOCACHEABLE, 0 }, +#endif + + { ngx_string("http_"), NULL, ngx_http_variable_unknown_header_in, + 0, NGX_HTTP_VAR_PREFIX, 0 }, + + { ngx_string("sent_http_"), NULL, ngx_http_variable_unknown_header_out, + 0, NGX_HTTP_VAR_PREFIX, 0 }, + + { ngx_string("cookie_"), NULL, ngx_http_variable_cookie, + 0, NGX_HTTP_VAR_PREFIX, 0 }, + + { ngx_string("arg_"), NULL, ngx_http_variable_argument, + 0, NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_PREFIX, 0 }, + + { ngx_null_string, NULL, NULL, 0, 0, 0 } +}; + + +ngx_http_variable_value_t ngx_http_variable_null_value = + ngx_http_variable(""); +ngx_http_variable_value_t ngx_http_variable_true_value = + ngx_http_variable("1"); + + +static ngx_uint_t ngx_http_variable_depth = 100; + + +ngx_http_variable_t * +ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags) +{ + ngx_int_t rc; + ngx_uint_t i; + ngx_hash_key_t *key; + ngx_http_variable_t *v; + ngx_http_core_main_conf_t *cmcf; + + if (name->len == 0) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "invalid variable name \"$\""); + return NULL; + } + + if (flags & NGX_HTTP_VAR_PREFIX) { + return ngx_http_add_prefix_variable(cf, name, flags); + } + + cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); + + key = cmcf->variables_keys->keys.elts; + for (i = 0; i < cmcf->variables_keys->keys.nelts; i++) { + if (name->len != key[i].key.len + || ngx_strncasecmp(name->data, key[i].key.data, name->len) != 0) + { + continue; + } + + v = key[i].value; + + if (!(v->flags & NGX_HTTP_VAR_CHANGEABLE)) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "the duplicate \"%V\" variable", name); + return NULL; + } + + v->flags &= flags | ~NGX_HTTP_VAR_WEAK; + + return v; + } + + v = ngx_palloc(cf->pool, sizeof(ngx_http_variable_t)); + if (v == NULL) { + return NULL; + } + + v->name.len = name->len; + v->name.data = ngx_pnalloc(cf->pool, name->len); + if (v->name.data == NULL) { + return NULL; + } + + ngx_strlow(v->name.data, name->data, name->len); + + v->set_handler = NULL; + v->get_handler = NULL; + v->data = 0; + v->flags = flags; + v->index = 0; + + rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, 0); + + if (rc == NGX_ERROR) { + return NULL; + } + + if (rc == NGX_BUSY) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "conflicting variable name \"%V\"", name); + return NULL; + } + + return v; +} + + +static ngx_http_variable_t * +ngx_http_add_prefix_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags) +{ + ngx_uint_t i; + ngx_http_variable_t *v; + ngx_http_core_main_conf_t *cmcf; + + cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); + + v = cmcf->prefix_variables.elts; + for (i = 0; i < cmcf->prefix_variables.nelts; i++) { + if (name->len != v[i].name.len + || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0) + { + continue; + } + + v = &v[i]; + + if (!(v->flags & NGX_HTTP_VAR_CHANGEABLE)) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "the duplicate \"%V\" variable", name); + return NULL; + } + + v->flags &= flags | ~NGX_HTTP_VAR_WEAK; + + return v; + } + + v = ngx_array_push(&cmcf->prefix_variables); + if (v == NULL) { + return NULL; + } + + v->name.len = name->len; + v->name.data = ngx_pnalloc(cf->pool, name->len); + if (v->name.data == NULL) { + return NULL; + } + + ngx_strlow(v->name.data, name->data, name->len); + + v->set_handler = NULL; + v->get_handler = NULL; + v->data = 0; + v->flags = flags; + v->index = 0; + + return v; +} + + +ngx_int_t +ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name) +{ + ngx_uint_t i; + ngx_http_variable_t *v; + ngx_http_core_main_conf_t *cmcf; + + if (name->len == 0) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "invalid variable name \"$\""); + return NGX_ERROR; + } + + cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); + + v = cmcf->variables.elts; + + if (v == NULL) { + if (ngx_array_init(&cmcf->variables, cf->pool, 4, + sizeof(ngx_http_variable_t)) + != NGX_OK) + { + return NGX_ERROR; + } + + } else { + for (i = 0; i < cmcf->variables.nelts; i++) { + if (name->len != v[i].name.len + || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0) + { + continue; + } + + return i; + } + } + + v = ngx_array_push(&cmcf->variables); + if (v == NULL) { + return NGX_ERROR; + } + + v->name.len = name->len; + v->name.data = ngx_pnalloc(cf->pool, name->len); + if (v->name.data == NULL) { + return NGX_ERROR; + } + + ngx_strlow(v->name.data, name->data, name->len); + + v->set_handler = NULL; + v->get_handler = NULL; + v->data = 0; + v->flags = 0; + v->index = cmcf->variables.nelts - 1; + + return v->index; +} + + +ngx_http_variable_value_t * +ngx_http_get_indexed_variable(ngx_http_request_t *r, ngx_uint_t index) +{ + ngx_http_variable_t *v; + ngx_http_core_main_conf_t *cmcf; + + cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); + + if (cmcf->variables.nelts <= index) { + ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, + "unknown variable index: %ui", index); + return NULL; + } + + if (r->variables[index].not_found || r->variables[index].valid) { + return &r->variables[index]; + } + + v = cmcf->variables.elts; + + if (ngx_http_variable_depth == 0) { + ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, + "cycle while evaluating variable \"%V\"", + &v[index].name); + return NULL; + } + + ngx_http_variable_depth--; + + if (v[index].get_handler(r, &r->variables[index], v[index].data) + == NGX_OK) + { + ngx_http_variable_depth++; + + if (v[index].flags & NGX_HTTP_VAR_NOCACHEABLE) { + r->variables[index].no_cacheable = 1; + } + + return &r->variables[index]; + } + + ngx_http_variable_depth++; + + r->variables[index].valid = 0; + r->variables[index].not_found = 1; + + return NULL; +} + + +ngx_http_variable_value_t * +ngx_http_get_flushed_variable(ngx_http_request_t *r, ngx_uint_t index) +{ + ngx_http_variable_value_t *v; + + v = &r->variables[index]; + + if (v->valid || v->not_found) { + if (!v->no_cacheable) { + return v; + } + + v->valid = 0; + v->not_found = 0; + } + + return ngx_http_get_indexed_variable(r, index); +} + + +ngx_http_variable_value_t * +ngx_http_get_variable(ngx_http_request_t *r, ngx_str_t *name, ngx_uint_t key) +{ + size_t len; + ngx_uint_t i, n; + ngx_http_variable_t *v; + ngx_http_variable_value_t *vv; + ngx_http_core_main_conf_t *cmcf; + + cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); + + v = ngx_hash_find(&cmcf->variables_hash, key, name->data, name->len); + + if (v) { + if (v->flags & NGX_HTTP_VAR_INDEXED) { + return ngx_http_get_flushed_variable(r, v->index); + } + + if (ngx_http_variable_depth == 0) { + ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, + "cycle while evaluating variable \"%V\"", name); + return NULL; + } + + ngx_http_variable_depth--; + + vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t)); + + if (vv && v->get_handler(r, vv, v->data) == NGX_OK) { + ngx_http_variable_depth++; + return vv; + } + + ngx_http_variable_depth++; + return NULL; + } + + vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t)); + if (vv == NULL) { + return NULL; + } + + len = 0; + + v = cmcf->prefix_variables.elts; + n = cmcf->prefix_variables.nelts; + + for (i = 0; i < cmcf->prefix_variables.nelts; i++) { + if (name->len >= v[i].name.len && name->len > len + && ngx_strncmp(name->data, v[i].name.data, v[i].name.len) == 0) + { + len = v[i].name.len; + n = i; + } + } + + if (n != cmcf->prefix_variables.nelts) { + if (v[n].get_handler(r, vv, (uintptr_t) name) == NGX_OK) { + return vv; + } + + return NULL; + } + + vv->not_found = 1; + + return vv; +} + + +static ngx_int_t +ngx_http_variable_request(ngx_http_request_t *r, ngx_http_variable_value_t *v, + uintptr_t data) +{ + ngx_str_t *s; + + s = (ngx_str_t *) ((char *) r + data); + + if (s->data) { + v->len = s->len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = s->data; + + } else { + v->not_found = 1; + } + + return NGX_OK; +} + + +#if 0 + +static void +ngx_http_variable_request_set(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + ngx_str_t *s; + + s = (ngx_str_t *) ((char *) r + data); + + s->len = v->len; + s->data = v->data; +} + +#endif + + +static ngx_int_t +ngx_http_variable_request_get_size(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + size_t *sp; + + sp = (size_t *) ((char *) r + data); + + v->data = ngx_pnalloc(r->pool, NGX_SIZE_T_LEN); + if (v->data == NULL) { + return NGX_ERROR; + } + + v->len = ngx_sprintf(v->data, "%uz", *sp) - v->data; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + + return NGX_OK; +} + + +static void +ngx_http_variable_request_set_size(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + ssize_t s, *sp; + ngx_str_t val; + + val.len = v->len; + val.data = v->data; + + s = ngx_parse_size(&val); + + if (s == NGX_ERROR) { + ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, + "invalid size \"%V\"", &val); + return; + } + + sp = (ssize_t *) ((char *) r + data); + + *sp = s; + + return; +} + + +static ngx_int_t +ngx_http_variable_header(ngx_http_request_t *r, ngx_http_variable_value_t *v, + uintptr_t data) +{ + ngx_table_elt_t *h; + + h = *(ngx_table_elt_t **) ((char *) r + data); + + if (h) { + v->len = h->value.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = h->value.data; + + } else { + v->not_found = 1; + } + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_cookies(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + return ngx_http_variable_headers_internal(r, v, data, ';'); +} + + +static ngx_int_t +ngx_http_variable_headers(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + return ngx_http_variable_headers_internal(r, v, data, ','); +} + + +static ngx_int_t +ngx_http_variable_headers_internal(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data, u_char sep) +{ + size_t len; + u_char *p, *end; + ngx_uint_t i, n; + ngx_array_t *a; + ngx_table_elt_t **h; + + a = (ngx_array_t *) ((char *) r + data); + + n = a->nelts; + h = a->elts; + + len = 0; + + for (i = 0; i < n; i++) { + + if (h[i]->hash == 0) { + continue; + } + + len += h[i]->value.len + 2; + } + + if (len == 0) { + v->not_found = 1; + return NGX_OK; + } + + len -= 2; + + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + + if (n == 1) { + v->len = (*h)->value.len; + v->data = (*h)->value.data; + + return NGX_OK; + } + + p = ngx_pnalloc(r->pool, len); + if (p == NULL) { + return NGX_ERROR; + } + + v->len = len; + v->data = p; + + end = p + len; + + for (i = 0; /* void */ ; i++) { + + if (h[i]->hash == 0) { + continue; + } + + p = ngx_copy(p, h[i]->value.data, h[i]->value.len); + + if (p == end) { + break; + } + + *p++ = sep; *p++ = ' '; + } + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_unknown_header_in(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + return ngx_http_variable_unknown_header(v, (ngx_str_t *) data, + &r->headers_in.headers.part, + sizeof("http_") - 1); +} + + +static ngx_int_t +ngx_http_variable_unknown_header_out(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + return ngx_http_variable_unknown_header(v, (ngx_str_t *) data, + &r->headers_out.headers.part, + sizeof("sent_http_") - 1); +} + + +ngx_int_t +ngx_http_variable_unknown_header(ngx_http_variable_value_t *v, ngx_str_t *var, + ngx_list_part_t *part, size_t prefix) +{ + u_char ch; + ngx_uint_t i, n; + ngx_table_elt_t *header; + + header = part->elts; + + for (i = 0; /* void */ ; i++) { + + if (i >= part->nelts) { + if (part->next == NULL) { + break; + } + + part = part->next; + header = part->elts; + i = 0; + } + + if (header[i].hash == 0) { + continue; + } + + for (n = 0; n + prefix < var->len && n < header[i].key.len; n++) { + ch = header[i].key.data[n]; + + if (ch >= 'A' && ch <= 'Z') { + ch |= 0x20; + + } else if (ch == '-') { + ch = '_'; + } + + if (var->data[n + prefix] != ch) { + break; + } + } + + if (n + prefix == var->len && n == header[i].key.len) { + v->len = header[i].value.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = header[i].value.data; + + return NGX_OK; + } + } + + v->not_found = 1; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_request_line(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + u_char *p, *s; + + s = r->request_line.data; + + if (s == NULL) { + s = r->request_start; + + if (s == NULL) { + v->not_found = 1; + return NGX_OK; + } + + for (p = s; p < r->header_in->last; p++) { + if (*p == CR || *p == LF) { + break; + } + } + + r->request_line.len = p - s; + r->request_line.data = s; + } + + v->len = r->request_line.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = s; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_cookie(ngx_http_request_t *r, ngx_http_variable_value_t *v, + uintptr_t data) +{ + ngx_str_t *name = (ngx_str_t *) data; + + ngx_str_t cookie, s; + + s.len = name->len - (sizeof("cookie_") - 1); + s.data = name->data + sizeof("cookie_") - 1; + + if (ngx_http_parse_multi_header_lines(&r->headers_in.cookies, &s, &cookie) + == NGX_DECLINED) + { + v->not_found = 1; + return NGX_OK; + } + + v->len = cookie.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = cookie.data; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_argument(ngx_http_request_t *r, ngx_http_variable_value_t *v, + uintptr_t data) +{ + ngx_str_t *name = (ngx_str_t *) data; + + u_char *arg; + size_t len; + ngx_str_t value; + + len = name->len - (sizeof("arg_") - 1); + arg = name->data + sizeof("arg_") - 1; + + if (ngx_http_arg(r, arg, len, &value) != NGX_OK) { + v->not_found = 1; + return NGX_OK; + } + + v->data = value.data; + v->len = value.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + + return NGX_OK; +} + + +#if (NGX_HAVE_TCP_INFO) + +static ngx_int_t +ngx_http_variable_tcpinfo(ngx_http_request_t *r, ngx_http_variable_value_t *v, + uintptr_t data) +{ + struct tcp_info ti; + socklen_t len; + uint32_t value; + + len = sizeof(struct tcp_info); + if (getsockopt(r->connection->fd, IPPROTO_TCP, TCP_INFO, &ti, &len) == -1) { + v->not_found = 1; + return NGX_OK; + } + + v->data = ngx_pnalloc(r->pool, NGX_INT32_LEN); + if (v->data == NULL) { + return NGX_ERROR; + } + + switch (data) { + case 0: + value = ti.tcpi_rtt; + break; + + case 1: + value = ti.tcpi_rttvar; + break; + + case 2: + value = ti.tcpi_snd_cwnd; + break; + + case 3: + value = ti.tcpi_rcv_space; + break; + + /* suppress warning */ + default: + value = 0; + break; + } + + v->len = ngx_sprintf(v->data, "%uD", value) - v->data; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + + return NGX_OK; +} + +#endif + + +static ngx_int_t +ngx_http_variable_content_length(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + u_char *p; + + if (r->headers_in.content_length) { + v->len = r->headers_in.content_length->value.len; + v->data = r->headers_in.content_length->value.data; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + + } else if (r->reading_body) { + v->not_found = 1; + v->no_cacheable = 1; + + } else if (r->headers_in.content_length_n >= 0) { + p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN); + if (p == NULL) { + return NGX_ERROR; + } + + v->len = ngx_sprintf(p, "%O", r->headers_in.content_length_n) - p; + v->data = p; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + + } else { + v->not_found = 1; + } + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_host(ngx_http_request_t *r, ngx_http_variable_value_t *v, + uintptr_t data) +{ + ngx_http_core_srv_conf_t *cscf; + + if (r->headers_in.server.len) { + v->len = r->headers_in.server.len; + v->data = r->headers_in.server.data; + + } else { + cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); + + v->len = cscf->server_name.len; + v->data = cscf->server_name.data; + } + + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_binary_remote_addr(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + struct sockaddr_in *sin; +#if (NGX_HAVE_INET6) + struct sockaddr_in6 *sin6; +#endif + + switch (r->connection->sockaddr->sa_family) { + +#if (NGX_HAVE_INET6) + case AF_INET6: + sin6 = (struct sockaddr_in6 *) r->connection->sockaddr; + + v->len = sizeof(struct in6_addr); + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = sin6->sin6_addr.s6_addr; + + break; +#endif + + default: /* AF_INET */ + sin = (struct sockaddr_in *) r->connection->sockaddr; + + v->len = sizeof(in_addr_t); + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = (u_char *) &sin->sin_addr; + + break; + } + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_remote_addr(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + v->len = r->connection->addr_text.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = r->connection->addr_text.data; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_remote_port(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + ngx_uint_t port; + + v->len = 0; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + + v->data = ngx_pnalloc(r->pool, sizeof("65535") - 1); + if (v->data == NULL) { + return NGX_ERROR; + } + + port = ngx_inet_get_port(r->connection->sockaddr); + + if (port > 0 && port < 65536) { + v->len = ngx_sprintf(v->data, "%ui", port) - v->data; + } + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_proxy_protocol_addr(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + v->len = r->connection->proxy_protocol_addr.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = r->connection->proxy_protocol_addr.data; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_proxy_protocol_port(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + ngx_uint_t port; + + v->len = 0; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + + v->data = ngx_pnalloc(r->pool, sizeof("65535") - 1); + if (v->data == NULL) { + return NGX_ERROR; + } + + port = r->connection->proxy_protocol_port; + + if (port > 0 && port < 65536) { + v->len = ngx_sprintf(v->data, "%ui", port) - v->data; + } + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_server_addr(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + ngx_str_t s; + u_char addr[NGX_SOCKADDR_STRLEN]; + + s.len = NGX_SOCKADDR_STRLEN; + s.data = addr; + + if (ngx_connection_local_sockaddr(r->connection, &s, 0) != NGX_OK) { + return NGX_ERROR; + } + + s.data = ngx_pnalloc(r->pool, s.len); + if (s.data == NULL) { + return NGX_ERROR; + } + + ngx_memcpy(s.data, addr, s.len); + + v->len = s.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = s.data; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_server_port(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + ngx_uint_t port; + + v->len = 0; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + + if (ngx_connection_local_sockaddr(r->connection, NULL, 0) != NGX_OK) { + return NGX_ERROR; + } + + v->data = ngx_pnalloc(r->pool, sizeof("65535") - 1); + if (v->data == NULL) { + return NGX_ERROR; + } + + port = ngx_inet_get_port(r->connection->local_sockaddr); + + if (port > 0 && port < 65536) { + v->len = ngx_sprintf(v->data, "%ui", port) - v->data; + } + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_scheme(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ +#if (NGX_HTTP_SSL) + + if (r->connection->ssl) { + v->len = sizeof("https") - 1; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = (u_char *) "https"; + + return NGX_OK; + } + +#endif + + v->len = sizeof("http") - 1; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = (u_char *) "http"; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_https(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ +#if (NGX_HTTP_SSL) + + if (r->connection->ssl) { + v->len = sizeof("on") - 1; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = (u_char *) "on"; + + return NGX_OK; + } + +#endif + + *v = ngx_http_variable_null_value; + + return NGX_OK; +} + + +static void +ngx_http_variable_set_args(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + r->args.len = v->len; + r->args.data = v->data; + r->valid_unparsed_uri = 0; +} + + +static ngx_int_t +ngx_http_variable_is_args(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + + if (r->args.len == 0) { + v->len = 0; + v->data = NULL; + return NGX_OK; + } + + v->len = 1; + v->data = (u_char *) "?"; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_document_root(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + ngx_str_t path; + ngx_http_core_loc_conf_t *clcf; + + clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); + + if (clcf->root_lengths == NULL) { + v->len = clcf->root.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = clcf->root.data; + + } else { + if (ngx_http_script_run(r, &path, clcf->root_lengths->elts, 0, + clcf->root_values->elts) + == NULL) + { + return NGX_ERROR; + } + + if (ngx_get_full_name(r->pool, (ngx_str_t *) &ngx_cycle->prefix, &path) + != NGX_OK) + { + return NGX_ERROR; + } + + v->len = path.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = path.data; + } + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_realpath_root(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + u_char *real; + size_t len; + ngx_str_t path; + ngx_http_core_loc_conf_t *clcf; +#if (NGX_HAVE_MAX_PATH) + u_char buffer[NGX_MAX_PATH]; +#endif + + clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); + + if (clcf->root_lengths == NULL) { + path = clcf->root; + + } else { + if (ngx_http_script_run(r, &path, clcf->root_lengths->elts, 1, + clcf->root_values->elts) + == NULL) + { + return NGX_ERROR; + } + + path.data[path.len - 1] = '\0'; + + if (ngx_get_full_name(r->pool, (ngx_str_t *) &ngx_cycle->prefix, &path) + != NGX_OK) + { + return NGX_ERROR; + } + } + +#if (NGX_HAVE_MAX_PATH) + real = buffer; +#else + real = NULL; +#endif + + real = ngx_realpath(path.data, real); + + if (real == NULL) { + ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno, + ngx_realpath_n " \"%s\" failed", path.data); + return NGX_ERROR; + } + + len = ngx_strlen(real); + + v->data = ngx_pnalloc(r->pool, len); + if (v->data == NULL) { +#if !(NGX_HAVE_MAX_PATH) + ngx_free(real); +#endif + return NGX_ERROR; + } + + v->len = len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + + ngx_memcpy(v->data, real, len); + +#if !(NGX_HAVE_MAX_PATH) + ngx_free(real); +#endif + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_request_filename(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + size_t root; + ngx_str_t path; + + if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) { + return NGX_ERROR; + } + + /* ngx_http_map_uri_to_path() allocates memory for terminating '\0' */ + + v->len = path.len - 1; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = path.data; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_server_name(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + ngx_http_core_srv_conf_t *cscf; + + cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); + + v->len = cscf->server_name.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = cscf->server_name.data; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_request_method(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + if (r->main->method_name.data) { + v->len = r->main->method_name.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = r->main->method_name.data; + + } else { + v->not_found = 1; + } + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_remote_user(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + ngx_int_t rc; + + rc = ngx_http_auth_basic_user(r); + + if (rc == NGX_DECLINED) { + v->not_found = 1; + return NGX_OK; + } + + if (rc == NGX_ERROR) { + return NGX_ERROR; + } + + v->len = r->headers_in.user.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = r->headers_in.user.data; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_bytes_sent(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + u_char *p; + + p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN); + if (p == NULL) { + return NGX_ERROR; + } + + v->len = ngx_sprintf(p, "%O", r->connection->sent) - p; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = p; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_body_bytes_sent(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + off_t sent; + u_char *p; + + sent = r->connection->sent - r->header_size; + + if (sent < 0) { + sent = 0; + } + + p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN); + if (p == NULL) { + return NGX_ERROR; + } + + v->len = ngx_sprintf(p, "%O", sent) - p; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = p; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_pipe(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + v->data = (u_char *) (r->pipeline ? "p" : "."); + v->len = 1; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_status(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + ngx_uint_t status; + + v->data = ngx_pnalloc(r->pool, NGX_INT_T_LEN); + if (v->data == NULL) { + return NGX_ERROR; + } + + if (r->err_status) { + status = r->err_status; + + } else if (r->headers_out.status) { + status = r->headers_out.status; + + } else if (r->http_version == NGX_HTTP_VERSION_9) { + status = 9; + + } else { + status = 0; + } + + v->len = ngx_sprintf(v->data, "%03ui", status) - v->data; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_sent_content_type(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + if (r->headers_out.content_type.len) { + v->len = r->headers_out.content_type.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = r->headers_out.content_type.data; + + } else { + v->not_found = 1; + } + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_sent_content_length(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + u_char *p; + + if (r->headers_out.content_length) { + v->len = r->headers_out.content_length->value.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = r->headers_out.content_length->value.data; + + return NGX_OK; + } + + if (r->headers_out.content_length_n >= 0) { + p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN); + if (p == NULL) { + return NGX_ERROR; + } + + v->len = ngx_sprintf(p, "%O", r->headers_out.content_length_n) - p; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = p; + + return NGX_OK; + } + + v->not_found = 1; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_sent_location(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + ngx_str_t name; + + if (r->headers_out.location) { + v->len = r->headers_out.location->value.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = r->headers_out.location->value.data; + + return NGX_OK; + } + + ngx_str_set(&name, "sent_http_location"); + + return ngx_http_variable_unknown_header(v, &name, + &r->headers_out.headers.part, + sizeof("sent_http_") - 1); +} + + +static ngx_int_t +ngx_http_variable_sent_last_modified(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + u_char *p; + + if (r->headers_out.last_modified) { + v->len = r->headers_out.last_modified->value.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = r->headers_out.last_modified->value.data; + + return NGX_OK; + } + + if (r->headers_out.last_modified_time >= 0) { + p = ngx_pnalloc(r->pool, sizeof("Mon, 28 Sep 1970 06:00:00 GMT") - 1); + if (p == NULL) { + return NGX_ERROR; + } + + v->len = ngx_http_time(p, r->headers_out.last_modified_time) - p; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = p; + + return NGX_OK; + } + + v->not_found = 1; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_sent_connection(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + size_t len; + char *p; + + if (r->headers_out.status == NGX_HTTP_SWITCHING_PROTOCOLS) { + len = sizeof("upgrade") - 1; + p = "upgrade"; + + } else if (r->keepalive) { + len = sizeof("keep-alive") - 1; + p = "keep-alive"; + + } else { + len = sizeof("close") - 1; + p = "close"; + } + + v->len = len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = (u_char *) p; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_sent_keep_alive(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + u_char *p; + ngx_http_core_loc_conf_t *clcf; + + if (r->keepalive) { + clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); + + if (clcf->keepalive_header) { + + p = ngx_pnalloc(r->pool, sizeof("timeout=") - 1 + NGX_TIME_T_LEN); + if (p == NULL) { + return NGX_ERROR; + } + + v->len = ngx_sprintf(p, "timeout=%T", clcf->keepalive_header) - p; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = p; + + return NGX_OK; + } + } + + v->not_found = 1; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + if (r->chunked) { + v->len = sizeof("chunked") - 1; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = (u_char *) "chunked"; + + } else { + v->not_found = 1; + } + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_request_completion(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + if (r->request_complete) { + v->len = 2; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = (u_char *) "OK"; + + return NGX_OK; + } + + v->len = 0; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = (u_char *) ""; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_request_body(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + u_char *p; + size_t len; + ngx_buf_t *buf; + ngx_chain_t *cl; + + if (r->request_body == NULL + || r->request_body->bufs == NULL + || r->request_body->temp_file) + { + v->not_found = 1; + + return NGX_OK; + } + + cl = r->request_body->bufs; + buf = cl->buf; + + if (cl->next == NULL) { + v->len = buf->last - buf->pos; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = buf->pos; + + return NGX_OK; + } + + len = buf->last - buf->pos; + cl = cl->next; + + for ( /* void */ ; cl; cl = cl->next) { + buf = cl->buf; + len += buf->last - buf->pos; + } + + p = ngx_pnalloc(r->pool, len); + if (p == NULL) { + return NGX_ERROR; + } + + v->data = p; + cl = r->request_body->bufs; + + for ( /* void */ ; cl; cl = cl->next) { + buf = cl->buf; + p = ngx_cpymem(p, buf->pos, buf->last - buf->pos); + } + + v->len = len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_request_body_file(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + if (r->request_body == NULL || r->request_body->temp_file == NULL) { + v->not_found = 1; + + return NGX_OK; + } + + v->len = r->request_body->temp_file->file.name.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = r->request_body->temp_file->file.name.data; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_request_length(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + u_char *p; + + p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN); + if (p == NULL) { + return NGX_ERROR; + } + + v->len = ngx_sprintf(p, "%O", r->request_length) - p; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = p; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_request_time(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + u_char *p; + ngx_time_t *tp; + ngx_msec_int_t ms; + + p = ngx_pnalloc(r->pool, NGX_TIME_T_LEN + 4); + if (p == NULL) { + return NGX_ERROR; + } + + tp = ngx_timeofday(); + + ms = (ngx_msec_int_t) + ((tp->sec - r->start_sec) * 1000 + (tp->msec - r->start_msec)); + ms = ngx_max(ms, 0); + + v->len = ngx_sprintf(p, "%T.%03M", (time_t) ms / 1000, ms % 1000) - p; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = p; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_request_id(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + u_char *id; + +#if (NGX_OPENSSL) + u_char random_bytes[16]; +#endif + + id = ngx_pnalloc(r->pool, 32); + if (id == NULL) { + return NGX_ERROR; + } + + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + + v->len = 32; + v->data = id; + +#if (NGX_OPENSSL) + + if (RAND_bytes(random_bytes, 16) == 1) { + ngx_hex_dump(id, random_bytes, 16); + return NGX_OK; + } + + ngx_ssl_error(NGX_LOG_ERR, r->connection->log, 0, "RAND_bytes() failed"); + +#endif + + ngx_sprintf(id, "%08xD%08xD%08xD%08xD", + (uint32_t) ngx_random(), (uint32_t) ngx_random(), + (uint32_t) ngx_random(), (uint32_t) ngx_random()); + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_connection(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + u_char *p; + + p = ngx_pnalloc(r->pool, NGX_ATOMIC_T_LEN); + if (p == NULL) { + return NGX_ERROR; + } + + v->len = ngx_sprintf(p, "%uA", r->connection->number) - p; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = p; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_connection_requests(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + u_char *p; + + p = ngx_pnalloc(r->pool, NGX_INT_T_LEN); + if (p == NULL) { + return NGX_ERROR; + } + + v->len = ngx_sprintf(p, "%ui", r->connection->requests) - p; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = p; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_nginx_version(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + v->len = sizeof(NGINX_VERSION) - 1; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = (u_char *) NGINX_VERSION; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_hostname(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + v->len = ngx_cycle->hostname.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = ngx_cycle->hostname.data; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_pid(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + u_char *p; + + p = ngx_pnalloc(r->pool, NGX_INT64_LEN); + if (p == NULL) { + return NGX_ERROR; + } + + v->len = ngx_sprintf(p, "%P", ngx_pid) - p; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = p; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_msec(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + u_char *p; + ngx_time_t *tp; + + p = ngx_pnalloc(r->pool, NGX_TIME_T_LEN + 4); + if (p == NULL) { + return NGX_ERROR; + } + + tp = ngx_timeofday(); + + v->len = ngx_sprintf(p, "%T.%03M", tp->sec, tp->msec) - p; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = p; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_time_iso8601(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + u_char *p; + + p = ngx_pnalloc(r->pool, ngx_cached_http_log_iso8601.len); + if (p == NULL) { + return NGX_ERROR; + } + + ngx_memcpy(p, ngx_cached_http_log_iso8601.data, + ngx_cached_http_log_iso8601.len); + + v->len = ngx_cached_http_log_iso8601.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = p; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_variable_time_local(ngx_http_request_t *r, + ngx_http_variable_value_t *v, uintptr_t data) +{ + u_char *p; + + p = ngx_pnalloc(r->pool, ngx_cached_http_log_time.len); + if (p == NULL) { + return NGX_ERROR; + } + + ngx_memcpy(p, ngx_cached_http_log_time.data, ngx_cached_http_log_time.len); + + v->len = ngx_cached_http_log_time.len; + v->valid = 1; + v->no_cacheable = 0; + v->not_found = 0; + v->data = p; + + return NGX_OK; +} + + +void * +ngx_http_map_find(ngx_http_request_t *r, ngx_http_map_t *map, ngx_str_t *match) +{ + void *value; + u_char *low; + size_t len; + ngx_uint_t key; + + len = match->len; + + if (len) { + low = ngx_pnalloc(r->pool, len); + if (low == NULL) { + return NULL; + } + + } else { + low = NULL; + } + + key = ngx_hash_strlow(low, match->data, len); + + value = ngx_hash_find_combined(&map->hash, key, low, len); + if (value) { + return value; + } + +#if (NGX_PCRE) + + if (len && map->nregex) { + ngx_int_t n; + ngx_uint_t i; + ngx_http_map_regex_t *reg; + + reg = map->regex; + + for (i = 0; i < map->nregex; i++) { + + n = ngx_http_regex_exec(r, reg[i].regex, match); + + if (n == NGX_OK) { + return reg[i].value; + } + + if (n == NGX_DECLINED) { + continue; + } + + /* NGX_ERROR */ + + return NULL; + } + } + +#endif + + return NULL; +} + + +#if (NGX_PCRE) + +static ngx_int_t +ngx_http_variable_not_found(ngx_http_request_t *r, ngx_http_variable_value_t *v, + uintptr_t data) +{ + v->not_found = 1; + return NGX_OK; +} + + +ngx_http_regex_t * +ngx_http_regex_compile(ngx_conf_t *cf, ngx_regex_compile_t *rc) +{ + u_char *p; + size_t size; + ngx_str_t name; + ngx_uint_t i, n; + ngx_http_variable_t *v; + ngx_http_regex_t *re; + ngx_http_regex_variable_t *rv; + ngx_http_core_main_conf_t *cmcf; + + rc->pool = cf->pool; + + if (ngx_regex_compile(rc) != NGX_OK) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%V", &rc->err); + return NULL; + } + + re = ngx_pcalloc(cf->pool, sizeof(ngx_http_regex_t)); + if (re == NULL) { + return NULL; + } + + re->regex = rc->regex; + re->ncaptures = rc->captures; + re->name = rc->pattern; + + cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); + cmcf->ncaptures = ngx_max(cmcf->ncaptures, re->ncaptures); + + n = (ngx_uint_t) rc->named_captures; + + if (n == 0) { + return re; + } + + rv = ngx_palloc(rc->pool, n * sizeof(ngx_http_regex_variable_t)); + if (rv == NULL) { + return NULL; + } + + re->variables = rv; + re->nvariables = n; + + size = rc->name_size; + p = rc->names; + + for (i = 0; i < n; i++) { + rv[i].capture = 2 * ((p[0] << 8) + p[1]); + + name.data = &p[2]; + name.len = ngx_strlen(name.data); + + v = ngx_http_add_variable(cf, &name, NGX_HTTP_VAR_CHANGEABLE); + if (v == NULL) { + return NULL; + } + + rv[i].index = ngx_http_get_variable_index(cf, &name); + if (rv[i].index == NGX_ERROR) { + return NULL; + } + + v->get_handler = ngx_http_variable_not_found; + + p += size; + } + + return re; +} + + +ngx_int_t +ngx_http_regex_exec(ngx_http_request_t *r, ngx_http_regex_t *re, ngx_str_t *s) +{ + ngx_int_t rc, index; + ngx_uint_t i, n, len; + ngx_http_variable_value_t *vv; + ngx_http_core_main_conf_t *cmcf; + + cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); + + if (re->ncaptures) { + len = cmcf->ncaptures; + + if (r->captures == NULL) { + r->captures = ngx_palloc(r->pool, len * sizeof(int)); + if (r->captures == NULL) { + return NGX_ERROR; + } + } + + } else { + len = 0; + } + + rc = ngx_regex_exec(re->regex, s, r->captures, len); + + if (rc == NGX_REGEX_NO_MATCHED) { + return NGX_DECLINED; + } + + if (rc < 0) { + ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, + ngx_regex_exec_n " failed: %i on \"%V\" using \"%V\"", + rc, s, &re->name); + return NGX_ERROR; + } + + for (i = 0; i < re->nvariables; i++) { + + n = re->variables[i].capture; + index = re->variables[i].index; + vv = &r->variables[index]; + + vv->len = r->captures[n + 1] - r->captures[n]; + vv->valid = 1; + vv->no_cacheable = 0; + vv->not_found = 0; + vv->data = &s->data[r->captures[n]]; + +#if (NGX_DEBUG) + { + ngx_http_variable_t *v; + + v = cmcf->variables.elts; + + ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, + "http regex set $%V to \"%v\"", &v[index].name, vv); + } +#endif + } + + r->ncaptures = rc * 2; + r->captures_data = s->data; + + return NGX_OK; +} + +#endif + + +ngx_int_t +ngx_http_variables_add_core_vars(ngx_conf_t *cf) +{ + ngx_http_variable_t *cv, *v; + ngx_http_core_main_conf_t *cmcf; + + cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); + + cmcf->variables_keys = ngx_pcalloc(cf->temp_pool, + sizeof(ngx_hash_keys_arrays_t)); + if (cmcf->variables_keys == NULL) { + return NGX_ERROR; + } + + cmcf->variables_keys->pool = cf->pool; + cmcf->variables_keys->temp_pool = cf->pool; + + if (ngx_hash_keys_array_init(cmcf->variables_keys, NGX_HASH_SMALL) + != NGX_OK) + { + return NGX_ERROR; + } + + if (ngx_array_init(&cmcf->prefix_variables, cf->pool, 8, + sizeof(ngx_http_variable_t)) + != NGX_OK) + { + return NGX_ERROR; + } + + for (cv = ngx_http_core_variables; cv->name.len; cv++) { + v = ngx_http_add_variable(cf, &cv->name, cv->flags); + if (v == NULL) { + return NGX_ERROR; + } + + *v = *cv; + } + + return NGX_OK; +} + + +ngx_int_t +ngx_http_variables_init_vars(ngx_conf_t *cf) +{ + size_t len; + ngx_uint_t i, n; + ngx_hash_key_t *key; + ngx_hash_init_t hash; + ngx_http_variable_t *v, *av, *pv; + ngx_http_core_main_conf_t *cmcf; + + /* set the handlers for the indexed http variables */ + + cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); + + v = cmcf->variables.elts; + pv = cmcf->prefix_variables.elts; + key = cmcf->variables_keys->keys.elts; + + for (i = 0; i < cmcf->variables.nelts; i++) { + + for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) { + + av = key[n].value; + + if (v[i].name.len == key[n].key.len + && ngx_strncmp(v[i].name.data, key[n].key.data, v[i].name.len) + == 0) + { + v[i].get_handler = av->get_handler; + v[i].data = av->data; + + av->flags |= NGX_HTTP_VAR_INDEXED; + v[i].flags = av->flags; + + av->index = i; + + if (av->get_handler == NULL + || (av->flags & NGX_HTTP_VAR_WEAK)) + { + break; + } + + goto next; + } + } + + len = 0; + av = NULL; + + for (n = 0; n < cmcf->prefix_variables.nelts; n++) { + if (v[i].name.len >= pv[n].name.len && v[i].name.len > len + && ngx_strncmp(v[i].name.data, pv[n].name.data, pv[n].name.len) + == 0) + { + av = &pv[n]; + len = pv[n].name.len; + } + } + + if (av) { + v[i].get_handler = av->get_handler; + v[i].data = (uintptr_t) &v[i].name; + v[i].flags = av->flags; + + goto next; + } + + if (v[i].get_handler == NULL) { + ngx_log_error(NGX_LOG_EMERG, cf->log, 0, + "unknown \"%V\" variable", &v[i].name); + + return NGX_ERROR; + } + + next: + continue; + } + + + for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) { + av = key[n].value; + + if (av->flags & NGX_HTTP_VAR_NOHASH) { + key[n].key.data = NULL; + } + } + + + hash.hash = &cmcf->variables_hash; + hash.key = ngx_hash_key; + hash.max_size = cmcf->variables_hash_max_size; + hash.bucket_size = cmcf->variables_hash_bucket_size; + hash.name = "variables_hash"; + hash.pool = cf->pool; + hash.temp_pool = NULL; + + if (ngx_hash_init(&hash, cmcf->variables_keys->keys.elts, + cmcf->variables_keys->keys.nelts) + != NGX_OK) + { + return NGX_ERROR; + } + + cmcf->variables_keys = NULL; + + return NGX_OK; +} |