Mercurial > hg > nginx
view src/http/ngx_http_core_module.c @ 6734:0c572ed91b36
Modules compatibility: compatibility with NGX_HAVE_FILE_AIO.
With this change it is now possible to load modules compiled without
the "--with-file-aio" configure option into nginx binary compiled with it,
and vice versa, assuming both use the "--with-compat" option.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Mon, 10 Oct 2016 18:44:17 +0300 |
| parents | cebf5fed00bf |
| children | 92ad1c92bcf9 |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_http.h> typedef struct { u_char *name; uint32_t method; } ngx_http_method_name_t; #define NGX_HTTP_REQUEST_BODY_FILE_OFF 0 #define NGX_HTTP_REQUEST_BODY_FILE_ON 1 #define NGX_HTTP_REQUEST_BODY_FILE_CLEAN 2 static ngx_int_t ngx_http_core_find_location(ngx_http_request_t *r); static ngx_int_t ngx_http_core_find_static_location(ngx_http_request_t *r, ngx_http_location_tree_node_t *node); static ngx_int_t ngx_http_core_preconfiguration(ngx_conf_t *cf); static ngx_int_t ngx_http_core_postconfiguration(ngx_conf_t *cf); static void *ngx_http_core_create_main_conf(ngx_conf_t *cf); static char *ngx_http_core_init_main_conf(ngx_conf_t *cf, void *conf); static void *ngx_http_core_create_srv_conf(ngx_conf_t *cf); static char *ngx_http_core_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child); static void *ngx_http_core_create_loc_conf(ngx_conf_t *cf); static char *ngx_http_core_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child); static char *ngx_http_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy); static char *ngx_http_core_location(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy); static ngx_int_t ngx_http_core_regex_location(ngx_conf_t *cf, ngx_http_core_loc_conf_t *clcf, ngx_str_t *regex, ngx_uint_t caseless); static char *ngx_http_core_types(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_core_type(ngx_conf_t *cf, ngx_command_t *dummy, void *conf); static char *ngx_http_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_core_server_name(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_core_root(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_core_limit_except(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_core_set_aio(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_core_directio(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_core_error_page(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_core_try_files(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_core_open_file_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_core_keepalive(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_core_internal(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); #if (NGX_HTTP_GZIP) static ngx_int_t ngx_http_gzip_accept_encoding(ngx_str_t *ae); static ngx_uint_t ngx_http_gzip_quantity(u_char *p, u_char *last); static char *ngx_http_gzip_disable(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); #endif static ngx_int_t ngx_http_get_forwarded_addr_internal(ngx_http_request_t *r, ngx_addr_t *addr, u_char *xff, size_t xfflen, ngx_array_t *proxies, int recursive); #if (NGX_HAVE_OPENAT) static char *ngx_http_disable_symlinks(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); #endif static char *ngx_http_core_lowat_check(ngx_conf_t *cf, void *post, void *data); static char *ngx_http_core_pool_size(ngx_conf_t *cf, void *post, void *data); static ngx_conf_post_t ngx_http_core_lowat_post = { ngx_http_core_lowat_check }; static ngx_conf_post_handler_pt ngx_http_core_pool_size_p = ngx_http_core_pool_size; static ngx_conf_enum_t ngx_http_core_request_body_in_file[] = { { ngx_string("off"), NGX_HTTP_REQUEST_BODY_FILE_OFF }, { ngx_string("on"), NGX_HTTP_REQUEST_BODY_FILE_ON }, { ngx_string("clean"), NGX_HTTP_REQUEST_BODY_FILE_CLEAN }, { ngx_null_string, 0 } }; static ngx_conf_enum_t ngx_http_core_satisfy[] = { { ngx_string("all"), NGX_HTTP_SATISFY_ALL }, { ngx_string("any"), NGX_HTTP_SATISFY_ANY }, { ngx_null_string, 0 } }; static ngx_conf_enum_t ngx_http_core_lingering_close[] = { { ngx_string("off"), NGX_HTTP_LINGERING_OFF }, { ngx_string("on"), NGX_HTTP_LINGERING_ON }, { ngx_string("always"), NGX_HTTP_LINGERING_ALWAYS }, { ngx_null_string, 0 } }; static ngx_conf_enum_t ngx_http_core_if_modified_since[] = { { ngx_string("off"), NGX_HTTP_IMS_OFF }, { ngx_string("exact"), NGX_HTTP_IMS_EXACT }, { ngx_string("before"), NGX_HTTP_IMS_BEFORE }, { ngx_null_string, 0 } }; static ngx_conf_bitmask_t ngx_http_core_keepalive_disable[] = { { ngx_string("none"), NGX_HTTP_KEEPALIVE_DISABLE_NONE }, { ngx_string("msie6"), NGX_HTTP_KEEPALIVE_DISABLE_MSIE6 }, { ngx_string("safari"), NGX_HTTP_KEEPALIVE_DISABLE_SAFARI }, { ngx_null_string, 0 } }; static ngx_path_init_t ngx_http_client_temp_path = { ngx_string(NGX_HTTP_CLIENT_TEMP_PATH), { 0, 0, 0 } }; #if (NGX_HTTP_GZIP) static ngx_conf_enum_t ngx_http_gzip_http_version[] = { { ngx_string("1.0"), NGX_HTTP_VERSION_10 }, { ngx_string("1.1"), NGX_HTTP_VERSION_11 }, { ngx_null_string, 0 } }; static ngx_conf_bitmask_t ngx_http_gzip_proxied_mask[] = { { ngx_string("off"), NGX_HTTP_GZIP_PROXIED_OFF }, { ngx_string("expired"), NGX_HTTP_GZIP_PROXIED_EXPIRED }, { ngx_string("no-cache"), NGX_HTTP_GZIP_PROXIED_NO_CACHE }, { ngx_string("no-store"), NGX_HTTP_GZIP_PROXIED_NO_STORE }, { ngx_string("private"), NGX_HTTP_GZIP_PROXIED_PRIVATE }, { ngx_string("no_last_modified"), NGX_HTTP_GZIP_PROXIED_NO_LM }, { ngx_string("no_etag"), NGX_HTTP_GZIP_PROXIED_NO_ETAG }, { ngx_string("auth"), NGX_HTTP_GZIP_PROXIED_AUTH }, { ngx_string("any"), NGX_HTTP_GZIP_PROXIED_ANY }, { ngx_null_string, 0 } }; static ngx_str_t ngx_http_gzip_no_cache = ngx_string("no-cache"); static ngx_str_t ngx_http_gzip_no_store = ngx_string("no-store"); static ngx_str_t ngx_http_gzip_private = ngx_string("private"); #endif static ngx_command_t ngx_http_core_commands[] = { { ngx_string("variables_hash_max_size"), NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, ngx_conf_set_num_slot, NGX_HTTP_MAIN_CONF_OFFSET, offsetof(ngx_http_core_main_conf_t, variables_hash_max_size), NULL }, { ngx_string("variables_hash_bucket_size"), NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, ngx_conf_set_num_slot, NGX_HTTP_MAIN_CONF_OFFSET, offsetof(ngx_http_core_main_conf_t, variables_hash_bucket_size), NULL }, { ngx_string("server_names_hash_max_size"), NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, ngx_conf_set_num_slot, NGX_HTTP_MAIN_CONF_OFFSET, offsetof(ngx_http_core_main_conf_t, server_names_hash_max_size), NULL }, { ngx_string("server_names_hash_bucket_size"), NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, ngx_conf_set_num_slot, NGX_HTTP_MAIN_CONF_OFFSET, offsetof(ngx_http_core_main_conf_t, server_names_hash_bucket_size), NULL }, { ngx_string("server"), NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, ngx_http_core_server, 0, 0, NULL }, { ngx_string("connection_pool_size"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_size_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_core_srv_conf_t, connection_pool_size), &ngx_http_core_pool_size_p }, { ngx_string("request_pool_size"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_size_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_core_srv_conf_t, request_pool_size), &ngx_http_core_pool_size_p }, { ngx_string("client_header_timeout"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_msec_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_core_srv_conf_t, client_header_timeout), NULL }, { ngx_string("client_header_buffer_size"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_size_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_core_srv_conf_t, client_header_buffer_size), NULL }, { ngx_string("large_client_header_buffers"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE2, ngx_conf_set_bufs_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_core_srv_conf_t, large_client_header_buffers), NULL }, { ngx_string("ignore_invalid_headers"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_core_srv_conf_t, ignore_invalid_headers), NULL }, { ngx_string("merge_slashes"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_core_srv_conf_t, merge_slashes), NULL }, { ngx_string("underscores_in_headers"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_SRV_CONF_OFFSET, offsetof(ngx_http_core_srv_conf_t, underscores_in_headers), NULL }, { ngx_string("location"), NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE12, ngx_http_core_location, NGX_HTTP_SRV_CONF_OFFSET, 0, NULL }, { ngx_string("listen"), NGX_HTTP_SRV_CONF|NGX_CONF_1MORE, ngx_http_core_listen, NGX_HTTP_SRV_CONF_OFFSET, 0, NULL }, { ngx_string("server_name"), NGX_HTTP_SRV_CONF|NGX_CONF_1MORE, ngx_http_core_server_name, NGX_HTTP_SRV_CONF_OFFSET, 0, NULL }, { ngx_string("types_hash_max_size"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_num_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, types_hash_max_size), NULL }, { ngx_string("types_hash_bucket_size"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_num_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, types_hash_bucket_size), NULL }, { ngx_string("types"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF |NGX_CONF_BLOCK|NGX_CONF_NOARGS, ngx_http_core_types, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, { ngx_string("default_type"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, default_type), NULL }, { ngx_string("root"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |NGX_CONF_TAKE1, ngx_http_core_root, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, { ngx_string("alias"), NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_http_core_root, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, { ngx_string("limit_except"), NGX_HTTP_LOC_CONF|NGX_CONF_BLOCK|NGX_CONF_1MORE, ngx_http_core_limit_except, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, { ngx_string("client_max_body_size"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_off_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, client_max_body_size), NULL }, { ngx_string("client_body_buffer_size"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_size_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, client_body_buffer_size), NULL }, { ngx_string("client_body_timeout"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_msec_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, client_body_timeout), NULL }, { ngx_string("client_body_temp_path"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1234, ngx_conf_set_path_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, client_body_temp_path), NULL }, { ngx_string("client_body_in_file_only"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_enum_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, client_body_in_file_only), &ngx_http_core_request_body_in_file }, { ngx_string("client_body_in_single_buffer"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, client_body_in_single_buffer), NULL }, { ngx_string("sendfile"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, sendfile), NULL }, { ngx_string("sendfile_max_chunk"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_size_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, sendfile_max_chunk), NULL }, { ngx_string("aio"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_http_core_set_aio, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, { ngx_string("aio_write"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, aio_write), NULL }, { ngx_string("read_ahead"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_size_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, read_ahead), NULL }, { ngx_string("directio"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_http_core_directio, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, { ngx_string("directio_alignment"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_off_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, directio_alignment), NULL }, { ngx_string("tcp_nopush"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, tcp_nopush), NULL }, { ngx_string("tcp_nodelay"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, tcp_nodelay), NULL }, { ngx_string("send_timeout"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_msec_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, send_timeout), NULL }, { ngx_string("send_lowat"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_size_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, send_lowat), &ngx_http_core_lowat_post }, { ngx_string("postpone_output"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_size_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, postpone_output), NULL }, { ngx_string("limit_rate"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |NGX_CONF_TAKE1, ngx_conf_set_size_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, limit_rate), NULL }, { ngx_string("limit_rate_after"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |NGX_CONF_TAKE1, ngx_conf_set_size_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, limit_rate_after), NULL }, { ngx_string("keepalive_timeout"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, ngx_http_core_keepalive, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, { ngx_string("keepalive_requests"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_num_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, keepalive_requests), NULL }, { ngx_string("keepalive_disable"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, ngx_conf_set_bitmask_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, keepalive_disable), &ngx_http_core_keepalive_disable }, { ngx_string("satisfy"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_enum_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, satisfy), &ngx_http_core_satisfy }, { ngx_string("internal"), NGX_HTTP_LOC_CONF|NGX_CONF_NOARGS, ngx_http_core_internal, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, { ngx_string("lingering_close"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_enum_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, lingering_close), &ngx_http_core_lingering_close }, { ngx_string("lingering_time"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_msec_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, lingering_time), NULL }, { ngx_string("lingering_timeout"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_msec_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, lingering_timeout), NULL }, { ngx_string("reset_timedout_connection"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, reset_timedout_connection), NULL }, { ngx_string("server_name_in_redirect"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, server_name_in_redirect), NULL }, { ngx_string("port_in_redirect"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, port_in_redirect), NULL }, { ngx_string("msie_padding"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, msie_padding), NULL }, { ngx_string("msie_refresh"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, msie_refresh), NULL }, { ngx_string("log_not_found"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, log_not_found), NULL }, { ngx_string("log_subrequest"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, log_subrequest), NULL }, { ngx_string("recursive_error_pages"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, recursive_error_pages), NULL }, { ngx_string("server_tokens"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, server_tokens), NULL }, { ngx_string("if_modified_since"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_enum_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, if_modified_since), &ngx_http_core_if_modified_since }, { ngx_string("max_ranges"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_num_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, max_ranges), NULL }, { ngx_string("chunked_transfer_encoding"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, chunked_transfer_encoding), NULL }, { ngx_string("etag"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, etag), NULL }, { ngx_string("error_page"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |NGX_CONF_2MORE, ngx_http_core_error_page, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, { ngx_string("try_files"), NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_2MORE, ngx_http_core_try_files, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, { ngx_string("post_action"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, post_action), NULL }, { ngx_string("error_log"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, ngx_http_core_error_log, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, { ngx_string("open_file_cache"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, ngx_http_core_open_file_cache, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, open_file_cache), NULL }, { ngx_string("open_file_cache_valid"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_sec_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, open_file_cache_valid), NULL }, { ngx_string("open_file_cache_min_uses"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_num_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, open_file_cache_min_uses), NULL }, { ngx_string("open_file_cache_errors"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, open_file_cache_errors), NULL }, { ngx_string("open_file_cache_events"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, open_file_cache_events), NULL }, { ngx_string("resolver"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, ngx_http_core_resolver, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, { ngx_string("resolver_timeout"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_msec_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, resolver_timeout), NULL }, #if (NGX_HTTP_GZIP) { ngx_string("gzip_vary"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, gzip_vary), NULL }, { ngx_string("gzip_http_version"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_enum_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, gzip_http_version), &ngx_http_gzip_http_version }, { ngx_string("gzip_proxied"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, ngx_conf_set_bitmask_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_core_loc_conf_t, gzip_proxied), &ngx_http_gzip_proxied_mask }, { ngx_string("gzip_disable"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, ngx_http_gzip_disable, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, #endif #if (NGX_HAVE_OPENAT) { ngx_string("disable_symlinks"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, ngx_http_disable_symlinks, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, #endif ngx_null_command }; static ngx_http_module_t ngx_http_core_module_ctx = { ngx_http_core_preconfiguration, /* preconfiguration */ ngx_http_core_postconfiguration, /* postconfiguration */ ngx_http_core_create_main_conf, /* create main configuration */ ngx_http_core_init_main_conf, /* init main configuration */ ngx_http_core_create_srv_conf, /* create server configuration */ ngx_http_core_merge_srv_conf, /* merge server configuration */ ngx_http_core_create_loc_conf, /* create location configuration */ ngx_http_core_merge_loc_conf /* merge location configuration */ }; ngx_module_t ngx_http_core_module = { NGX_MODULE_V1, &ngx_http_core_module_ctx, /* module context */ ngx_http_core_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 }; ngx_str_t ngx_http_core_get_method = { 3, (u_char *) "GET" }; void ngx_http_handler(ngx_http_request_t *r) { ngx_http_core_main_conf_t *cmcf; r->connection->log->action = NULL; if (!r->internal) { switch (r->headers_in.connection_type) { case 0: r->keepalive = (r->http_version > NGX_HTTP_VERSION_10); break; case NGX_HTTP_CONNECTION_CLOSE: r->keepalive = 0; break; case NGX_HTTP_CONNECTION_KEEP_ALIVE: r->keepalive = 1; break; } r->lingering_close = (r->headers_in.content_length_n > 0 || r->headers_in.chunked); r->phase_handler = 0; } else { cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); r->phase_handler = cmcf->phase_engine.server_rewrite_index; } r->valid_location = 1; #if (NGX_HTTP_GZIP) r->gzip_tested = 0; r->gzip_ok = 0; r->gzip_vary = 0; #endif r->write_event_handler = ngx_http_core_run_phases; ngx_http_core_run_phases(r); } void ngx_http_core_run_phases(ngx_http_request_t *r) { ngx_int_t rc; ngx_http_phase_handler_t *ph; ngx_http_core_main_conf_t *cmcf; cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); ph = cmcf->phase_engine.handlers; while (ph[r->phase_handler].checker) { rc = ph[r->phase_handler].checker(r, &ph[r->phase_handler]); if (rc == NGX_OK) { return; } } } ngx_int_t ngx_http_core_generic_phase(ngx_http_request_t *r, ngx_http_phase_handler_t *ph) { ngx_int_t rc; /* * generic phase checker, * used by the post read and pre-access phases */ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "generic phase: %ui", r->phase_handler); rc = ph->handler(r); if (rc == NGX_OK) { r->phase_handler = ph->next; return NGX_AGAIN; } if (rc == NGX_DECLINED) { r->phase_handler++; return NGX_AGAIN; } if (rc == NGX_AGAIN || rc == NGX_DONE) { return NGX_OK; } /* rc == NGX_ERROR || rc == NGX_HTTP_... */ ngx_http_finalize_request(r, rc); return NGX_OK; } ngx_int_t ngx_http_core_rewrite_phase(ngx_http_request_t *r, ngx_http_phase_handler_t *ph) { ngx_int_t rc; ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "rewrite phase: %ui", r->phase_handler); rc = ph->handler(r); if (rc == NGX_DECLINED) { r->phase_handler++; return NGX_AGAIN; } if (rc == NGX_DONE) { return NGX_OK; } /* NGX_OK, NGX_AGAIN, NGX_ERROR, NGX_HTTP_... */ ngx_http_finalize_request(r, rc); return NGX_OK; } ngx_int_t ngx_http_core_find_config_phase(ngx_http_request_t *r, ngx_http_phase_handler_t *ph) { u_char *p; size_t len; ngx_int_t rc; ngx_http_core_loc_conf_t *clcf; r->content_handler = NULL; r->uri_changed = 0; rc = ngx_http_core_find_location(r); if (rc == NGX_ERROR) { ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); return NGX_OK; } clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); if (!r->internal && clcf->internal) { ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND); return NGX_OK; } ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "using configuration \"%s%V\"", (clcf->noname ? "*" : (clcf->exact_match ? "=" : "")), &clcf->name); ngx_http_update_location_config(r); ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http cl:%O max:%O", r->headers_in.content_length_n, clcf->client_max_body_size); if (r->headers_in.content_length_n != -1 && !r->discard_body && clcf->client_max_body_size && clcf->client_max_body_size < r->headers_in.content_length_n) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "client intended to send too large body: %O bytes", r->headers_in.content_length_n); r->expect_tested = 1; (void) ngx_http_discard_request_body(r); ngx_http_finalize_request(r, NGX_HTTP_REQUEST_ENTITY_TOO_LARGE); return NGX_OK; } if (rc == NGX_DONE) { ngx_http_clear_location(r); r->headers_out.location = ngx_list_push(&r->headers_out.headers); if (r->headers_out.location == NULL) { ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); return NGX_OK; } /* * we do not need to set the r->headers_out.location->hash and * r->headers_out.location->key fields */ if (r->args.len == 0) { r->headers_out.location->value = clcf->name; } else { len = clcf->name.len + 1 + r->args.len; p = ngx_pnalloc(r->pool, len); if (p == NULL) { ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); return NGX_OK; } r->headers_out.location->value.len = len; r->headers_out.location->value.data = p; p = ngx_cpymem(p, clcf->name.data, clcf->name.len); *p++ = '?'; ngx_memcpy(p, r->args.data, r->args.len); } ngx_http_finalize_request(r, NGX_HTTP_MOVED_PERMANENTLY); return NGX_OK; } r->phase_handler++; return NGX_AGAIN; } ngx_int_t ngx_http_core_post_rewrite_phase(ngx_http_request_t *r, ngx_http_phase_handler_t *ph) { ngx_http_core_srv_conf_t *cscf; ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "post rewrite phase: %ui", r->phase_handler); if (!r->uri_changed) { r->phase_handler++; return NGX_AGAIN; } ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "uri changes: %d", r->uri_changes); /* * gcc before 3.3 compiles the broken code for * if (r->uri_changes-- == 0) * if the r->uri_changes is defined as * unsigned uri_changes:4 */ r->uri_changes--; if (r->uri_changes == 0) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "rewrite or internal redirection cycle " "while processing \"%V\"", &r->uri); ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); return NGX_OK; } r->phase_handler = ph->next; cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); r->loc_conf = cscf->ctx->loc_conf; return NGX_AGAIN; } ngx_int_t ngx_http_core_access_phase(ngx_http_request_t *r, ngx_http_phase_handler_t *ph) { ngx_int_t rc; ngx_http_core_loc_conf_t *clcf; if (r != r->main) { r->phase_handler = ph->next; return NGX_AGAIN; } ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "access phase: %ui", r->phase_handler); rc = ph->handler(r); if (rc == NGX_DECLINED) { r->phase_handler++; return NGX_AGAIN; } if (rc == NGX_AGAIN || rc == NGX_DONE) { return NGX_OK; } clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); if (clcf->satisfy == NGX_HTTP_SATISFY_ALL) { if (rc == NGX_OK) { r->phase_handler++; return NGX_AGAIN; } } else { if (rc == NGX_OK) { r->access_code = 0; if (r->headers_out.www_authenticate) { r->headers_out.www_authenticate->hash = 0; } r->phase_handler = ph->next; return NGX_AGAIN; } if (rc == NGX_HTTP_FORBIDDEN || rc == NGX_HTTP_UNAUTHORIZED) { if (r->access_code != NGX_HTTP_UNAUTHORIZED) { r->access_code = rc; } r->phase_handler++; return NGX_AGAIN; } } /* rc == NGX_ERROR || rc == NGX_HTTP_... */ ngx_http_finalize_request(r, rc); return NGX_OK; } ngx_int_t ngx_http_core_post_access_phase(ngx_http_request_t *r, ngx_http_phase_handler_t *ph) { ngx_int_t access_code; ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "post access phase: %ui", r->phase_handler); access_code = r->access_code; if (access_code) { if (access_code == NGX_HTTP_FORBIDDEN) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "access forbidden by rule"); } r->access_code = 0; ngx_http_finalize_request(r, access_code); return NGX_OK; } r->phase_handler++; return NGX_AGAIN; } ngx_int_t ngx_http_core_try_files_phase(ngx_http_request_t *r, ngx_http_phase_handler_t *ph) { size_t len, root, alias, reserve, allocated; u_char *p, *name; ngx_str_t path, args; ngx_uint_t test_dir; ngx_http_try_file_t *tf; ngx_open_file_info_t of; ngx_http_script_code_pt code; ngx_http_script_engine_t e; ngx_http_core_loc_conf_t *clcf; ngx_http_script_len_code_pt lcode; ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "try files phase: %ui", r->phase_handler); clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); if (clcf->try_files == NULL) { r->phase_handler++; return NGX_AGAIN; } allocated = 0; root = 0; name = NULL; /* suppress MSVC warning */ path.data = NULL; tf = clcf->try_files; alias = clcf->alias; for ( ;; ) { if (tf->lengths) { ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); e.ip = tf->lengths->elts; e.request = r; /* 1 is for terminating '\0' as in static names */ len = 1; while (*(uintptr_t *) e.ip) { lcode = *(ngx_http_script_len_code_pt *) e.ip; len += lcode(&e); } } else { len = tf->name.len; } if (!alias) { reserve = len > r->uri.len ? len - r->uri.len : 0; } else if (alias == NGX_MAX_SIZE_T_VALUE) { reserve = len; } else { reserve = len > r->uri.len - alias ? len - (r->uri.len - alias) : 0; } if (reserve > allocated || !allocated) { /* 16 bytes are preallocation */ allocated = reserve + 16; if (ngx_http_map_uri_to_path(r, &path, &root, allocated) == NULL) { ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); return NGX_OK; } name = path.data + root; } if (tf->values == NULL) { /* tf->name.len includes the terminating '\0' */ ngx_memcpy(name, tf->name.data, tf->name.len); path.len = (name + tf->name.len - 1) - path.data; } else { e.ip = tf->values->elts; e.pos = name; e.flushed = 1; while (*(uintptr_t *) e.ip) { code = *(ngx_http_script_code_pt *) e.ip; code((ngx_http_script_engine_t *) &e); } path.len = e.pos - path.data; *e.pos = '\0'; if (alias && alias != NGX_MAX_SIZE_T_VALUE && ngx_strncmp(name, r->uri.data, alias) == 0) { ngx_memmove(name, name + alias, len - alias); path.len -= alias; } } test_dir = tf->test_dir; tf++; ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "trying to use %s: \"%s\" \"%s\"", test_dir ? "dir" : "file", name, path.data); if (tf->lengths == NULL && tf->name.len == 0) { if (tf->code) { ngx_http_finalize_request(r, tf->code); return NGX_OK; } path.len -= root; path.data += root; if (path.data[0] == '@') { (void) ngx_http_named_location(r, &path); } else { ngx_http_split_args(r, &path, &args); (void) ngx_http_internal_redirect(r, &path, &args); } ngx_http_finalize_request(r, NGX_DONE); return NGX_OK; } ngx_memzero(&of, sizeof(ngx_open_file_info_t)); of.read_ahead = clcf->read_ahead; of.directio = clcf->directio; of.valid = clcf->open_file_cache_valid; of.min_uses = clcf->open_file_cache_min_uses; of.test_only = 1; of.errors = clcf->open_file_cache_errors; of.events = clcf->open_file_cache_events; if (ngx_http_set_disable_symlinks(r, clcf, &path, &of) != NGX_OK) { ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); return NGX_OK; } if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool) != NGX_OK) { if (of.err != NGX_ENOENT && of.err != NGX_ENOTDIR && of.err != NGX_ENAMETOOLONG) { ngx_log_error(NGX_LOG_CRIT, r->connection->log, of.err, "%s \"%s\" failed", of.failed, path.data); } continue; } if (of.is_dir != test_dir) { continue; } path.len -= root; path.data += root; if (!alias) { r->uri = path; } else if (alias == NGX_MAX_SIZE_T_VALUE) { if (!test_dir) { r->uri = path; r->add_uri_to_alias = 1; } } else { name = r->uri.data; r->uri.len = alias + path.len; r->uri.data = ngx_pnalloc(r->pool, r->uri.len); if (r->uri.data == NULL) { ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); return NGX_OK; } p = ngx_copy(r->uri.data, name, alias); ngx_memcpy(p, path.data, path.len); } ngx_http_set_exten(r); ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "try file uri: \"%V\"", &r->uri); r->phase_handler++; return NGX_AGAIN; } /* not reached */ } ngx_int_t ngx_http_core_content_phase(ngx_http_request_t *r, ngx_http_phase_handler_t *ph) { size_t root; ngx_int_t rc; ngx_str_t path; if (r->content_handler) { r->write_event_handler = ngx_http_request_empty_handler; ngx_http_finalize_request(r, r->content_handler(r)); return NGX_OK; } ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "content phase: %ui", r->phase_handler); rc = ph->handler(r); if (rc != NGX_DECLINED) { ngx_http_finalize_request(r, rc); return NGX_OK; } /* rc == NGX_DECLINED */ ph++; if (ph->checker) { r->phase_handler++; return NGX_AGAIN; } /* no content handler was found */ if (r->uri.data[r->uri.len - 1] == '/') { if (ngx_http_map_uri_to_path(r, &path, &root, 0) != NULL) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "directory index of \"%s\" is forbidden", path.data); } ngx_http_finalize_request(r, NGX_HTTP_FORBIDDEN); return NGX_OK; } ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no handler found"); ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND); return NGX_OK; } void ngx_http_update_location_config(ngx_http_request_t *r) { ngx_http_core_loc_conf_t *clcf; clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); if (r->method & clcf->limit_except) { r->loc_conf = clcf->limit_except_loc_conf; clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); } if (r == r->main) { ngx_set_connection_log(r->connection, clcf->error_log); } if ((ngx_io.flags & NGX_IO_SENDFILE) && clcf->sendfile) { r->connection->sendfile = 1; } else { r->connection->sendfile = 0; } if (clcf->client_body_in_file_only) { r->request_body_in_file_only = 1; r->request_body_in_persistent_file = 1; r->request_body_in_clean_file = clcf->client_body_in_file_only == NGX_HTTP_REQUEST_BODY_FILE_CLEAN; r->request_body_file_log_level = NGX_LOG_NOTICE; } else { r->request_body_file_log_level = NGX_LOG_WARN; } r->request_body_in_single_buf = clcf->client_body_in_single_buffer; if (r->keepalive) { if (clcf->keepalive_timeout == 0) { r->keepalive = 0; } else if (r->connection->requests >= clcf->keepalive_requests) { r->keepalive = 0; } else if (r->headers_in.msie6 && r->method == NGX_HTTP_POST && (clcf->keepalive_disable & NGX_HTTP_KEEPALIVE_DISABLE_MSIE6)) { /* * MSIE may wait for some time if an response for * a POST request was sent over a keepalive connection */ r->keepalive = 0; } else if (r->headers_in.safari && (clcf->keepalive_disable & NGX_HTTP_KEEPALIVE_DISABLE_SAFARI)) { /* * Safari may send a POST request to a closed keepalive * connection and may stall for some time, see * https://bugs.webkit.org/show_bug.cgi?id=5760 */ r->keepalive = 0; } } if (!clcf->tcp_nopush) { /* disable TCP_NOPUSH/TCP_CORK use */ r->connection->tcp_nopush = NGX_TCP_NOPUSH_DISABLED; } if (r->limit_rate == 0) { r->limit_rate = clcf->limit_rate; } if (clcf->handler) { r->content_handler = clcf->handler; } } /* * NGX_OK - exact or regex match * NGX_DONE - auto redirect * NGX_AGAIN - inclusive match * NGX_ERROR - regex error * NGX_DECLINED - no match */ static ngx_int_t ngx_http_core_find_location(ngx_http_request_t *r) { ngx_int_t rc; ngx_http_core_loc_conf_t *pclcf; #if (NGX_PCRE) ngx_int_t n; ngx_uint_t noregex; ngx_http_core_loc_conf_t *clcf, **clcfp; noregex = 0; #endif pclcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); rc = ngx_http_core_find_static_location(r, pclcf->static_locations); if (rc == NGX_AGAIN) { #if (NGX_PCRE) clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); noregex = clcf->noregex; #endif /* look up nested locations */ rc = ngx_http_core_find_location(r); } if (rc == NGX_OK || rc == NGX_DONE) { return rc; } /* rc == NGX_DECLINED or rc == NGX_AGAIN in nested location */ #if (NGX_PCRE) if (noregex == 0 && pclcf->regex_locations) { for (clcfp = pclcf->regex_locations; *clcfp; clcfp++) { ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "test location: ~ \"%V\"", &(*clcfp)->name); n = ngx_http_regex_exec(r, (*clcfp)->regex, &r->uri); if (n == NGX_OK) { r->loc_conf = (*clcfp)->loc_conf; /* look up nested locations */ rc = ngx_http_core_find_location(r); return (rc == NGX_ERROR) ? rc : NGX_OK; } if (n == NGX_DECLINED) { continue; } return NGX_ERROR; } } #endif return rc; } /* * NGX_OK - exact match * NGX_DONE - auto redirect * NGX_AGAIN - inclusive match * NGX_DECLINED - no match */ static ngx_int_t ngx_http_core_find_static_location(ngx_http_request_t *r, ngx_http_location_tree_node_t *node) { u_char *uri; size_t len, n; ngx_int_t rc, rv; len = r->uri.len; uri = r->uri.data; rv = NGX_DECLINED; for ( ;; ) { if (node == NULL) { return rv; } ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "test location: \"%*s\"", (size_t) node->len, node->name); n = (len <= (size_t) node->len) ? len : node->len; rc = ngx_filename_cmp(uri, node->name, n); if (rc != 0) { node = (rc < 0) ? node->left : node->right; continue; } if (len > (size_t) node->len) { if (node->inclusive) { r->loc_conf = node->inclusive->loc_conf; rv = NGX_AGAIN; node = node->tree; uri += n; len -= n; continue; } /* exact only */ node = node->right; continue; } if (len == (size_t) node->len) { if (node->exact) { r->loc_conf = node->exact->loc_conf; return NGX_OK; } else { r->loc_conf = node->inclusive->loc_conf; return NGX_AGAIN; } } /* len < node->len */ if (len + 1 == (size_t) node->len && node->auto_redirect) { r->loc_conf = (node->exact) ? node->exact->loc_conf: node->inclusive->loc_conf; rv = NGX_DONE; } node = node->left; } } void * ngx_http_test_content_type(ngx_http_request_t *r, ngx_hash_t *types_hash) { u_char c, *lowcase; size_t len; ngx_uint_t i, hash; if (types_hash->size == 0) { return (void *) 4; } if (r->headers_out.content_type.len == 0) { return NULL; } len = r->headers_out.content_type_len; if (r->headers_out.content_type_lowcase == NULL) { lowcase = ngx_pnalloc(r->pool, len); if (lowcase == NULL) { return NULL; } r->headers_out.content_type_lowcase = lowcase; hash = 0; for (i = 0; i < len; i++) { c = ngx_tolower(r->headers_out.content_type.data[i]); hash = ngx_hash(hash, c); lowcase[i] = c; } r->headers_out.content_type_hash = hash; } return ngx_hash_find(types_hash, r->headers_out.content_type_hash, r->headers_out.content_type_lowcase, len); } ngx_int_t ngx_http_set_content_type(ngx_http_request_t *r) { u_char c, *exten; ngx_str_t *type; ngx_uint_t i, hash; ngx_http_core_loc_conf_t *clcf; if (r->headers_out.content_type.len) { return NGX_OK; } clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); if (r->exten.len) { hash = 0; for (i = 0; i < r->exten.len; i++) { c = r->exten.data[i]; if (c >= 'A' && c <= 'Z') { exten = ngx_pnalloc(r->pool, r->exten.len); if (exten == NULL) { return NGX_ERROR; } hash = ngx_hash_strlow(exten, r->exten.data, r->exten.len); r->exten.data = exten; break; } hash = ngx_hash(hash, c); } type = ngx_hash_find(&clcf->types_hash, hash, r->exten.data, r->exten.len); if (type) { r->headers_out.content_type_len = type->len; r->headers_out.content_type = *type; return NGX_OK; } } r->headers_out.content_type_len = clcf->default_type.len; r->headers_out.content_type = clcf->default_type; return NGX_OK; } void ngx_http_set_exten(ngx_http_request_t *r) { ngx_int_t i; ngx_str_null(&r->exten); for (i = r->uri.len - 1; i > 1; i--) { if (r->uri.data[i] == '.' && r->uri.data[i - 1] != '/') { r->exten.len = r->uri.len - i - 1; r->exten.data = &r->uri.data[i + 1]; return; } else if (r->uri.data[i] == '/') { return; } } return; } ngx_int_t ngx_http_set_etag(ngx_http_request_t *r) { ngx_table_elt_t *etag; ngx_http_core_loc_conf_t *clcf; clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); if (!clcf->etag) { return NGX_OK; } etag = ngx_list_push(&r->headers_out.headers); if (etag == NULL) { return NGX_ERROR; } etag->hash = 1; ngx_str_set(&etag->key, "ETag"); etag->value.data = ngx_pnalloc(r->pool, NGX_OFF_T_LEN + NGX_TIME_T_LEN + 3); if (etag->value.data == NULL) { etag->hash = 0; return NGX_ERROR; } etag->value.len = ngx_sprintf(etag->value.data, "\"%xT-%xO\"", r->headers_out.last_modified_time, r->headers_out.content_length_n) - etag->value.data; r->headers_out.etag = etag; return NGX_OK; } void ngx_http_weak_etag(ngx_http_request_t *r) { size_t len; u_char *p; ngx_table_elt_t *etag; etag = r->headers_out.etag; if (etag == NULL) { return; } if (etag->value.len > 2 && etag->value.data[0] == 'W' && etag->value.data[1] == '/') { return; } if (etag->value.len < 1 || etag->value.data[0] != '"') { r->headers_out.etag->hash = 0; r->headers_out.etag = NULL; return; } p = ngx_pnalloc(r->pool, etag->value.len + 2); if (p == NULL) { r->headers_out.etag->hash = 0; r->headers_out.etag = NULL; return; } len = ngx_sprintf(p, "W/%V", &etag->value) - p; etag->value.data = p; etag->value.len = len; } ngx_int_t ngx_http_send_response(ngx_http_request_t *r, ngx_uint_t status, ngx_str_t *ct, ngx_http_complex_value_t *cv) { ngx_int_t rc; ngx_str_t val; ngx_buf_t *b; ngx_chain_t out; if (ngx_http_discard_request_body(r) != NGX_OK) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } r->headers_out.status = status; if (ngx_http_complex_value(r, cv, &val) != NGX_OK) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } if (status == NGX_HTTP_MOVED_PERMANENTLY || status == NGX_HTTP_MOVED_TEMPORARILY || status == NGX_HTTP_SEE_OTHER || status == NGX_HTTP_TEMPORARY_REDIRECT) { ngx_http_clear_location(r); r->headers_out.location = ngx_list_push(&r->headers_out.headers); if (r->headers_out.location == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } r->headers_out.location->hash = 1; ngx_str_set(&r->headers_out.location->key, "Location"); r->headers_out.location->value = val; return status; } r->headers_out.content_length_n = val.len; if (ct) { r->headers_out.content_type_len = ct->len; r->headers_out.content_type = *ct; } else { if (ngx_http_set_content_type(r) != NGX_OK) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } } if (r->method == NGX_HTTP_HEAD || (r != r->main && val.len == 0)) { return ngx_http_send_header(r); } b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); if (b == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } b->pos = val.data; b->last = val.data + val.len; b->memory = val.len ? 1 : 0; b->last_buf = (r == r->main) ? 1 : 0; b->last_in_chain = 1; out.buf = b; out.next = NULL; rc = ngx_http_send_header(r); if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { return rc; } return ngx_http_output_filter(r, &out); } ngx_int_t ngx_http_send_header(ngx_http_request_t *r) { if (r->post_action) { return NGX_OK; } if (r->header_sent) { ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, "header already sent"); return NGX_ERROR; } if (r->err_status) { r->headers_out.status = r->err_status; r->headers_out.status_line.len = 0; } return ngx_http_top_header_filter(r); } ngx_int_t ngx_http_output_filter(ngx_http_request_t *r, ngx_chain_t *in) { ngx_int_t rc; ngx_connection_t *c; c = r->connection; ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "http output filter \"%V?%V\"", &r->uri, &r->args); rc = ngx_http_top_body_filter(r, in); if (rc == NGX_ERROR) { /* NGX_ERROR may be returned by any filter */ c->error = 1; } return rc; } u_char * ngx_http_map_uri_to_path(ngx_http_request_t *r, ngx_str_t *path, size_t *root_length, size_t reserved) { u_char *last; size_t alias; ngx_http_core_loc_conf_t *clcf; clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); alias = clcf->alias; if (alias && !r->valid_location) { ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, "\"alias\" cannot be used in location \"%V\" " "where URI was rewritten", &clcf->name); return NULL; } if (clcf->root_lengths == NULL) { *root_length = clcf->root.len; path->len = clcf->root.len + reserved + r->uri.len - alias + 1; path->data = ngx_pnalloc(r->pool, path->len); if (path->data == NULL) { return NULL; } last = ngx_copy(path->data, clcf->root.data, clcf->root.len); } else { if (alias == NGX_MAX_SIZE_T_VALUE) { reserved += r->add_uri_to_alias ? r->uri.len + 1 : 1; } else { reserved += r->uri.len - alias + 1; } if (ngx_http_script_run(r, path, clcf->root_lengths->elts, reserved, clcf->root_values->elts) == NULL) { return NULL; } if (ngx_get_full_name(r->pool, (ngx_str_t *) &ngx_cycle->prefix, path) != NGX_OK) { return NULL; } *root_length = path->len - reserved; last = path->data + *root_length; if (alias == NGX_MAX_SIZE_T_VALUE) { if (!r->add_uri_to_alias) { *last = '\0'; return last; } alias = 0; } } last = ngx_cpystrn(last, r->uri.data + alias, r->uri.len - alias + 1); return last; } ngx_int_t ngx_http_auth_basic_user(ngx_http_request_t *r) { ngx_str_t auth, encoded; ngx_uint_t len; if (r->headers_in.user.len == 0 && r->headers_in.user.data != NULL) { return NGX_DECLINED; } if (r->headers_in.authorization == NULL) { r->headers_in.user.data = (u_char *) ""; return NGX_DECLINED; } encoded = r->headers_in.authorization->value; if (encoded.len < sizeof("Basic ") - 1 || ngx_strncasecmp(encoded.data, (u_char *) "Basic ", sizeof("Basic ") - 1) != 0) { r->headers_in.user.data = (u_char *) ""; return NGX_DECLINED; } encoded.len -= sizeof("Basic ") - 1; encoded.data += sizeof("Basic ") - 1; while (encoded.len && encoded.data[0] == ' ') { encoded.len--; encoded.data++; } if (encoded.len == 0) { r->headers_in.user.data = (u_char *) ""; return NGX_DECLINED; } auth.len = ngx_base64_decoded_length(encoded.len); auth.data = ngx_pnalloc(r->pool, auth.len + 1); if (auth.data == NULL) { return NGX_ERROR; } if (ngx_decode_base64(&auth, &encoded) != NGX_OK) { r->headers_in.user.data = (u_char *) ""; return NGX_DECLINED; } auth.data[auth.len] = '\0'; for (len = 0; len < auth.len; len++) { if (auth.data[len] == ':') { break; } } if (len == 0 || len == auth.len) { r->headers_in.user.data = (u_char *) ""; return NGX_DECLINED; } r->headers_in.user.len = len; r->headers_in.user.data = auth.data; r->headers_in.passwd.len = auth.len - len - 1; r->headers_in.passwd.data = &auth.data[len + 1]; return NGX_OK; } #if (NGX_HTTP_GZIP) ngx_int_t ngx_http_gzip_ok(ngx_http_request_t *r) { time_t date, expires; ngx_uint_t p; ngx_array_t *cc; ngx_table_elt_t *e, *d, *ae; ngx_http_core_loc_conf_t *clcf; r->gzip_tested = 1; if (r != r->main) { return NGX_DECLINED; } ae = r->headers_in.accept_encoding; if (ae == NULL) { return NGX_DECLINED; } if (ae->value.len < sizeof("gzip") - 1) { return NGX_DECLINED; } /* * test first for the most common case "gzip,...": * MSIE: "gzip, deflate" * Firefox: "gzip,deflate" * Chrome: "gzip,deflate,sdch" * Safari: "gzip, deflate" * Opera: "gzip, deflate" */ if (ngx_memcmp(ae->value.data, "gzip,", 5) != 0 && ngx_http_gzip_accept_encoding(&ae->value) != NGX_OK) { return NGX_DECLINED; } clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); if (r->headers_in.msie6 && clcf->gzip_disable_msie6) { return NGX_DECLINED; } if (r->http_version < clcf->gzip_http_version) { return NGX_DECLINED; } if (r->headers_in.via == NULL) { goto ok; } p = clcf->gzip_proxied; if (p & NGX_HTTP_GZIP_PROXIED_OFF) { return NGX_DECLINED; } if (p & NGX_HTTP_GZIP_PROXIED_ANY) { goto ok; } if (r->headers_in.authorization && (p & NGX_HTTP_GZIP_PROXIED_AUTH)) { goto ok; } e = r->headers_out.expires; if (e) { if (!(p & NGX_HTTP_GZIP_PROXIED_EXPIRED)) { return NGX_DECLINED; } expires = ngx_parse_http_time(e->value.data, e->value.len); if (expires == NGX_ERROR) { return NGX_DECLINED; } d = r->headers_out.date; if (d) { date = ngx_parse_http_time(d->value.data, d->value.len); if (date == NGX_ERROR) { return NGX_DECLINED; } } else { date = ngx_time(); } if (expires < date) { goto ok; } return NGX_DECLINED; } cc = &r->headers_out.cache_control; if (cc->elts) { if ((p & NGX_HTTP_GZIP_PROXIED_NO_CACHE) && ngx_http_parse_multi_header_lines(cc, &ngx_http_gzip_no_cache, NULL) >= 0) { goto ok; } if ((p & NGX_HTTP_GZIP_PROXIED_NO_STORE) && ngx_http_parse_multi_header_lines(cc, &ngx_http_gzip_no_store, NULL) >= 0) { goto ok; } if ((p & NGX_HTTP_GZIP_PROXIED_PRIVATE) && ngx_http_parse_multi_header_lines(cc, &ngx_http_gzip_private, NULL) >= 0) { goto ok; } return NGX_DECLINED; } if ((p & NGX_HTTP_GZIP_PROXIED_NO_LM) && r->headers_out.last_modified) { return NGX_DECLINED; } if ((p & NGX_HTTP_GZIP_PROXIED_NO_ETAG) && r->headers_out.etag) { return NGX_DECLINED; } ok: #if (NGX_PCRE) if (clcf->gzip_disable && r->headers_in.user_agent) { if (ngx_regex_exec_array(clcf->gzip_disable, &r->headers_in.user_agent->value, r->connection->log) != NGX_DECLINED) { return NGX_DECLINED; } } #endif r->gzip_ok = 1; return NGX_OK; } /* * gzip is enabled for the following quantities: * "gzip; q=0.001" ... "gzip; q=1.000" * gzip is disabled for the following quantities: * "gzip; q=0" ... "gzip; q=0.000", and for any invalid cases */ static ngx_int_t ngx_http_gzip_accept_encoding(ngx_str_t *ae) { u_char *p, *start, *last; start = ae->data; last = start + ae->len; for ( ;; ) { p = ngx_strcasestrn(start, "gzip", 4 - 1); if (p == NULL) { return NGX_DECLINED; } if (p == start || (*(p - 1) == ',' || *(p - 1) == ' ')) { break; } start = p + 4; } p += 4; while (p < last) { switch (*p++) { case ',': return NGX_OK; case ';': goto quantity; case ' ': continue; default: return NGX_DECLINED; } } return NGX_OK; quantity: while (p < last) { switch (*p++) { case 'q': case 'Q': goto equal; case ' ': continue; default: return NGX_DECLINED; } } return NGX_OK; equal: if (p + 2 > last || *p++ != '=') { return NGX_DECLINED; } if (ngx_http_gzip_quantity(p, last) == 0) { return NGX_DECLINED; } return NGX_OK; } static ngx_uint_t ngx_http_gzip_quantity(u_char *p, u_char *last) { u_char c; ngx_uint_t n, q; c = *p++; if (c != '0' && c != '1') { return 0; } q = (c - '0') * 100; if (p == last) { return q; } c = *p++; if (c == ',' || c == ' ') { return q; } if (c != '.') { return 0; } n = 0; while (p < last) { c = *p++; if (c == ',' || c == ' ') { break; } if (c >= '0' && c <= '9') { q += c - '0'; n++; continue; } return 0; } if (q > 100 || n > 3) { return 0; } return q; } #endif ngx_int_t ngx_http_subrequest(ngx_http_request_t *r, ngx_str_t *uri, ngx_str_t *args, ngx_http_request_t **psr, ngx_http_post_subrequest_t *ps, ngx_uint_t flags) { ngx_time_t *tp; ngx_connection_t *c; ngx_http_request_t *sr; ngx_http_core_srv_conf_t *cscf; ngx_http_postponed_request_t *pr, *p; if (r->subrequests == 0) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "subrequests cycle while processing \"%V\"", uri); return NGX_ERROR; } /* * 1000 is reserved for other purposes. */ if (r->main->count >= 65535 - 1000) { ngx_log_error(NGX_LOG_CRIT, r->connection->log, 0, "request reference counter overflow " "while processing \"%V\"", uri); return NGX_ERROR; } sr = ngx_pcalloc(r->pool, sizeof(ngx_http_request_t)); if (sr == NULL) { return NGX_ERROR; } sr->signature = NGX_HTTP_MODULE; c = r->connection; sr->connection = c; sr->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module); if (sr->ctx == NULL) { return NGX_ERROR; } if (ngx_list_init(&sr->headers_out.headers, r->pool, 20, sizeof(ngx_table_elt_t)) != NGX_OK) { return NGX_ERROR; } cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); sr->main_conf = cscf->ctx->main_conf; sr->srv_conf = cscf->ctx->srv_conf; sr->loc_conf = cscf->ctx->loc_conf; sr->pool = r->pool; sr->headers_in = r->headers_in; ngx_http_clear_content_length(sr); ngx_http_clear_accept_ranges(sr); ngx_http_clear_last_modified(sr); sr->request_body = r->request_body; #if (NGX_HTTP_V2) sr->stream = r->stream; #endif sr->method = NGX_HTTP_GET; sr->http_version = r->http_version; sr->request_line = r->request_line; sr->uri = *uri; if (args) { sr->args = *args; } ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "http subrequest \"%V?%V\"", uri, &sr->args); sr->subrequest_in_memory = (flags & NGX_HTTP_SUBREQUEST_IN_MEMORY) != 0; sr->waited = (flags & NGX_HTTP_SUBREQUEST_WAITED) != 0; sr->unparsed_uri = r->unparsed_uri; sr->method_name = ngx_http_core_get_method; sr->http_protocol = r->http_protocol; ngx_http_set_exten(sr); sr->main = r->main; sr->parent = r; sr->post_subrequest = ps; sr->read_event_handler = ngx_http_request_empty_handler; sr->write_event_handler = ngx_http_handler; if (c->data == r && r->postponed == NULL) { c->data = sr; } sr->variables = r->variables; sr->log_handler = r->log_handler; pr = ngx_palloc(r->pool, sizeof(ngx_http_postponed_request_t)); if (pr == NULL) { return NGX_ERROR; } pr->request = sr; pr->out = NULL; pr->next = NULL; if (r->postponed) { for (p = r->postponed; p->next; p = p->next) { /* void */ } p->next = pr; } else { r->postponed = pr; } sr->internal = 1; sr->discard_body = r->discard_body; sr->expect_tested = 1; sr->main_filter_need_in_memory = r->main_filter_need_in_memory; sr->uri_changes = NGX_HTTP_MAX_URI_CHANGES + 1; sr->subrequests = r->subrequests - 1; tp = ngx_timeofday(); sr->start_sec = tp->sec; sr->start_msec = tp->msec; r->main->count++; *psr = sr; return ngx_http_post_request(sr, NULL); } ngx_int_t ngx_http_internal_redirect(ngx_http_request_t *r, ngx_str_t *uri, ngx_str_t *args) { ngx_http_core_srv_conf_t *cscf; r->uri_changes--; if (r->uri_changes == 0) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "rewrite or internal redirection cycle " "while internally redirecting to \"%V\"", uri); r->main->count++; ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); return NGX_DONE; } r->uri = *uri; if (args) { r->args = *args; } else { ngx_str_null(&r->args); } ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "internal redirect: \"%V?%V\"", uri, &r->args); ngx_http_set_exten(r); /* clear the modules contexts */ ngx_memzero(r->ctx, sizeof(void *) * ngx_http_max_module); cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); r->loc_conf = cscf->ctx->loc_conf; ngx_http_update_location_config(r); #if (NGX_HTTP_CACHE) r->cache = NULL; #endif r->internal = 1; r->valid_unparsed_uri = 0; r->add_uri_to_alias = 0; r->main->count++; ngx_http_handler(r); return NGX_DONE; } ngx_int_t ngx_http_named_location(ngx_http_request_t *r, ngx_str_t *name) { ngx_http_core_srv_conf_t *cscf; ngx_http_core_loc_conf_t **clcfp; ngx_http_core_main_conf_t *cmcf; r->main->count++; r->uri_changes--; if (r->uri_changes == 0) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "rewrite or internal redirection cycle " "while redirect to named location \"%V\"", name); ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); return NGX_DONE; } if (r->uri.len == 0) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "empty URI in redirect to named location \"%V\"", name); ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); return NGX_DONE; } cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); if (cscf->named_locations) { for (clcfp = cscf->named_locations; *clcfp; clcfp++) { ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "test location: \"%V\"", &(*clcfp)->name); if (name->len != (*clcfp)->name.len || ngx_strncmp(name->data, (*clcfp)->name.data, name->len) != 0) { continue; } ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "using location: %V \"%V?%V\"", name, &r->uri, &r->args); r->internal = 1; r->content_handler = NULL; r->uri_changed = 0; r->loc_conf = (*clcfp)->loc_conf; /* clear the modules contexts */ ngx_memzero(r->ctx, sizeof(void *) * ngx_http_max_module); ngx_http_update_location_config(r); cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); r->phase_handler = cmcf->phase_engine.location_rewrite_index; r->write_event_handler = ngx_http_core_run_phases; ngx_http_core_run_phases(r); return NGX_DONE; } } ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "could not find named location \"%V\"", name); ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); return NGX_DONE; } ngx_http_cleanup_t * ngx_http_cleanup_add(ngx_http_request_t *r, size_t size) { ngx_http_cleanup_t *cln; r = r->main; cln = ngx_palloc(r->pool, sizeof(ngx_http_cleanup_t)); if (cln == NULL) { return NULL; } if (size) { cln->data = ngx_palloc(r->pool, size); if (cln->data == NULL) { return NULL; } } else { cln->data = NULL; } cln->handler = NULL; cln->next = r->cleanup; r->cleanup = cln; ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http cleanup add: %p", cln); return cln; } ngx_int_t ngx_http_set_disable_symlinks(ngx_http_request_t *r, ngx_http_core_loc_conf_t *clcf, ngx_str_t *path, ngx_open_file_info_t *of) { #if (NGX_HAVE_OPENAT) u_char *p; ngx_str_t from; of->disable_symlinks = clcf->disable_symlinks; if (clcf->disable_symlinks_from == NULL) { return NGX_OK; } if (ngx_http_complex_value(r, clcf->disable_symlinks_from, &from) != NGX_OK) { return NGX_ERROR; } if (from.len == 0 || from.len > path->len || ngx_memcmp(path->data, from.data, from.len) != 0) { return NGX_OK; } if (from.len == path->len) { of->disable_symlinks = NGX_DISABLE_SYMLINKS_OFF; return NGX_OK; } p = path->data + from.len; if (*p == '/') { of->disable_symlinks_from = from.len; return NGX_OK; } p--; if (*p == '/') { of->disable_symlinks_from = from.len - 1; } #endif return NGX_OK; } ngx_int_t ngx_http_get_forwarded_addr(ngx_http_request_t *r, ngx_addr_t *addr, ngx_array_t *headers, ngx_str_t *value, ngx_array_t *proxies, int recursive) { ngx_int_t rc; ngx_uint_t i, found; ngx_table_elt_t **h; if (headers == NULL) { return ngx_http_get_forwarded_addr_internal(r, addr, value->data, value->len, proxies, recursive); } i = headers->nelts; h = headers->elts; rc = NGX_DECLINED; found = 0; while (i-- > 0) { rc = ngx_http_get_forwarded_addr_internal(r, addr, h[i]->value.data, h[i]->value.len, proxies, recursive); if (!recursive) { break; } if (rc == NGX_DECLINED && found) { rc = NGX_DONE; break; } if (rc != NGX_OK) { break; } found = 1; } return rc; } static ngx_int_t ngx_http_get_forwarded_addr_internal(ngx_http_request_t *r, ngx_addr_t *addr, u_char *xff, size_t xfflen, ngx_array_t *proxies, int recursive) { u_char *p; ngx_int_t rc; ngx_addr_t paddr; if (ngx_cidr_match(addr->sockaddr, proxies) != NGX_OK) { return NGX_DECLINED; } for (p = xff + xfflen - 1; p > xff; p--, xfflen--) { if (*p != ' ' && *p != ',') { break; } } for ( /* void */ ; p > xff; p--) { if (*p == ' ' || *p == ',') { p++; break; } } if (ngx_parse_addr_port(r->pool, &paddr, p, xfflen - (p - xff)) != NGX_OK) { return NGX_DECLINED; } *addr = paddr; if (recursive && p > xff) { rc = ngx_http_get_forwarded_addr_internal(r, addr, xff, p - 1 - xff, proxies, 1); if (rc == NGX_DECLINED) { return NGX_DONE; } /* rc == NGX_OK || rc == NGX_DONE */ return rc; } return NGX_OK; } static char * ngx_http_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy) { char *rv; void *mconf; ngx_uint_t i; ngx_conf_t pcf; ngx_http_module_t *module; struct sockaddr_in *sin; ngx_http_conf_ctx_t *ctx, *http_ctx; ngx_http_listen_opt_t lsopt; ngx_http_core_srv_conf_t *cscf, **cscfp; ngx_http_core_main_conf_t *cmcf; ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); if (ctx == NULL) { return NGX_CONF_ERROR; } http_ctx = cf->ctx; ctx->main_conf = http_ctx->main_conf; /* the server{}'s srv_conf */ ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); if (ctx->srv_conf == NULL) { return NGX_CONF_ERROR; } /* the server{}'s loc_conf */ ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); if (ctx->loc_conf == NULL) { return NGX_CONF_ERROR; } for (i = 0; cf->cycle->modules[i]; i++) { if (cf->cycle->modules[i]->type != NGX_HTTP_MODULE) { continue; } module = cf->cycle->modules[i]->ctx; if (module->create_srv_conf) { mconf = module->create_srv_conf(cf); if (mconf == NULL) { return NGX_CONF_ERROR; } ctx->srv_conf[cf->cycle->modules[i]->ctx_index] = mconf; } if (module->create_loc_conf) { mconf = module->create_loc_conf(cf); if (mconf == NULL) { return NGX_CONF_ERROR; } ctx->loc_conf[cf->cycle->modules[i]->ctx_index] = mconf; } } /* the server configuration context */ cscf = ctx->srv_conf[ngx_http_core_module.ctx_index]; cscf->ctx = ctx; cmcf = ctx->main_conf[ngx_http_core_module.ctx_index]; cscfp = ngx_array_push(&cmcf->servers); if (cscfp == NULL) { return NGX_CONF_ERROR; } *cscfp = cscf; /* parse inside server{} */ pcf = *cf; cf->ctx = ctx; cf->cmd_type = NGX_HTTP_SRV_CONF; rv = ngx_conf_parse(cf, NULL); *cf = pcf; if (rv == NGX_CONF_OK && !cscf->listen) { ngx_memzero(&lsopt, sizeof(ngx_http_listen_opt_t)); sin = &lsopt.sockaddr.sockaddr_in; sin->sin_family = AF_INET; #if (NGX_WIN32) sin->sin_port = htons(80); #else sin->sin_port = htons((getuid() == 0) ? 80 : 8000); #endif sin->sin_addr.s_addr = INADDR_ANY; lsopt.socklen = sizeof(struct sockaddr_in); lsopt.backlog = NGX_LISTEN_BACKLOG; lsopt.rcvbuf = -1; lsopt.sndbuf = -1; #if (NGX_HAVE_SETFIB) lsopt.setfib = -1; #endif #if (NGX_HAVE_TCP_FASTOPEN) lsopt.fastopen = -1; #endif lsopt.wildcard = 1; (void) ngx_sock_ntop(&lsopt.sockaddr.sockaddr, lsopt.socklen, lsopt.addr, NGX_SOCKADDR_STRLEN, 1); if (ngx_http_add_listen(cf, cscf, &lsopt) != NGX_OK) { return NGX_CONF_ERROR; } } return rv; } static char * ngx_http_core_location(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy) { char *rv; u_char *mod; size_t len; ngx_str_t *value, *name; ngx_uint_t i; ngx_conf_t save; ngx_http_module_t *module; ngx_http_conf_ctx_t *ctx, *pctx; ngx_http_core_loc_conf_t *clcf, *pclcf; ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); if (ctx == NULL) { return NGX_CONF_ERROR; } pctx = cf->ctx; ctx->main_conf = pctx->main_conf; ctx->srv_conf = pctx->srv_conf; ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); if (ctx->loc_conf == NULL) { return NGX_CONF_ERROR; } for (i = 0; cf->cycle->modules[i]; i++) { if (cf->cycle->modules[i]->type != NGX_HTTP_MODULE) { continue; } module = cf->cycle->modules[i]->ctx; if (module->create_loc_conf) { ctx->loc_conf[cf->cycle->modules[i]->ctx_index] = module->create_loc_conf(cf); if (ctx->loc_conf[cf->cycle->modules[i]->ctx_index] == NULL) { return NGX_CONF_ERROR; } } } clcf = ctx->loc_conf[ngx_http_core_module.ctx_index]; clcf->loc_conf = ctx->loc_conf; value = cf->args->elts; if (cf->args->nelts == 3) { len = value[1].len; mod = value[1].data; name = &value[2]; if (len == 1 && mod[0] == '=') { clcf->name = *name; clcf->exact_match = 1; } else if (len == 2 && mod[0] == '^' && mod[1] == '~') { clcf->name = *name; clcf->noregex = 1; } else if (len == 1 && mod[0] == '~') { if (ngx_http_core_regex_location(cf, clcf, name, 0) != NGX_OK) { return NGX_CONF_ERROR; } } else if (len == 2 && mod[0] == '~' && mod[1] == '*') { if (ngx_http_core_regex_location(cf, clcf, name, 1) != NGX_OK) { return NGX_CONF_ERROR; } } else { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid location modifier \"%V\"", &value[1]); return NGX_CONF_ERROR; } } else { name = &value[1]; if (name->data[0] == '=') { clcf->name.len = name->len - 1; clcf->name.data = name->data + 1; clcf->exact_match = 1; } else if (name->data[0] == '^' && name->data[1] == '~') { clcf->name.len = name->len - 2; clcf->name.data = name->data + 2; clcf->noregex = 1; } else if (name->data[0] == '~') { name->len--; name->data++; if (name->data[0] == '*') { name->len--; name->data++; if (ngx_http_core_regex_location(cf, clcf, name, 1) != NGX_OK) { return NGX_CONF_ERROR; } } else { if (ngx_http_core_regex_location(cf, clcf, name, 0) != NGX_OK) { return NGX_CONF_ERROR; } } } else { clcf->name = *name; if (name->data[0] == '@') { clcf->named = 1; } } } pclcf = pctx->loc_conf[ngx_http_core_module.ctx_index]; if (cf->cmd_type == NGX_HTTP_LOC_CONF) { /* nested location */ #if 0 clcf->prev_location = pclcf; #endif if (pclcf->exact_match) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "location \"%V\" cannot be inside " "the exact location \"%V\"", &clcf->name, &pclcf->name); return NGX_CONF_ERROR; } if (pclcf->named) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "location \"%V\" cannot be inside " "the named location \"%V\"", &clcf->name, &pclcf->name); return NGX_CONF_ERROR; } if (clcf->named) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "named location \"%V\" can be " "on the server level only", &clcf->name); return NGX_CONF_ERROR; } len = pclcf->name.len; #if (NGX_PCRE) if (clcf->regex == NULL && ngx_filename_cmp(clcf->name.data, pclcf->name.data, len) != 0) #else if (ngx_filename_cmp(clcf->name.data, pclcf->name.data, len) != 0) #endif { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "location \"%V\" is outside location \"%V\"", &clcf->name, &pclcf->name); return NGX_CONF_ERROR; } } if (ngx_http_add_location(cf, &pclcf->locations, clcf) != NGX_OK) { return NGX_CONF_ERROR; } save = *cf; cf->ctx = ctx; cf->cmd_type = NGX_HTTP_LOC_CONF; rv = ngx_conf_parse(cf, NULL); *cf = save; return rv; } static ngx_int_t ngx_http_core_regex_location(ngx_conf_t *cf, ngx_http_core_loc_conf_t *clcf, ngx_str_t *regex, ngx_uint_t caseless) { #if (NGX_PCRE) ngx_regex_compile_t rc; u_char errstr[NGX_MAX_CONF_ERRSTR]; ngx_memzero(&rc, sizeof(ngx_regex_compile_t)); rc.pattern = *regex; rc.err.len = NGX_MAX_CONF_ERRSTR; rc.err.data = errstr; #if (NGX_HAVE_CASELESS_FILESYSTEM) rc.options = NGX_REGEX_CASELESS; #else rc.options = caseless ? NGX_REGEX_CASELESS : 0; #endif clcf->regex = ngx_http_regex_compile(cf, &rc); if (clcf->regex == NULL) { return NGX_ERROR; } clcf->name = *regex; return NGX_OK; #else ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "using regex \"%V\" requires PCRE library", regex); return NGX_ERROR; #endif } static char * ngx_http_core_types(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_core_loc_conf_t *clcf = conf; char *rv; ngx_conf_t save; if (clcf->types == NULL) { clcf->types = ngx_array_create(cf->pool, 64, sizeof(ngx_hash_key_t)); if (clcf->types == NULL) { return NGX_CONF_ERROR; } } save = *cf; cf->handler = ngx_http_core_type; cf->handler_conf = conf; rv = ngx_conf_parse(cf, NULL); *cf = save; return rv; } static char * ngx_http_core_type(ngx_conf_t *cf, ngx_command_t *dummy, void *conf) { ngx_http_core_loc_conf_t *clcf = conf; ngx_str_t *value, *content_type, *old; ngx_uint_t i, n, hash; ngx_hash_key_t *type; value = cf->args->elts; if (ngx_strcmp(value[0].data, "include") == 0) { if (cf->args->nelts != 2) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid number of arguments" " in \"include\" directive"); return NGX_CONF_ERROR; } return ngx_conf_include(cf, dummy, conf); } content_type = ngx_palloc(cf->pool, sizeof(ngx_str_t)); if (content_type == NULL) { return NGX_CONF_ERROR; } *content_type = value[0]; for (i = 1; i < cf->args->nelts; i++) { hash = ngx_hash_strlow(value[i].data, value[i].data, value[i].len); type = clcf->types->elts; for (n = 0; n < clcf->types->nelts; n++) { if (ngx_strcmp(value[i].data, type[n].key.data) == 0) { old = type[n].value; type[n].value = content_type; ngx_conf_log_error(NGX_LOG_WARN, cf, 0, "duplicate extension \"%V\", " "content type: \"%V\", " "previous content type: \"%V\"", &value[i], content_type, old); goto next; } } type = ngx_array_push(clcf->types); if (type == NULL) { return NGX_CONF_ERROR; } type->key = value[i]; type->key_hash = hash; type->value = content_type; next: continue; } return NGX_CONF_OK; } static ngx_int_t ngx_http_core_preconfiguration(ngx_conf_t *cf) { return ngx_http_variables_add_core_vars(cf); } static ngx_int_t ngx_http_core_postconfiguration(ngx_conf_t *cf) { ngx_http_top_request_body_filter = ngx_http_request_body_save_filter; return NGX_OK; } static void * ngx_http_core_create_main_conf(ngx_conf_t *cf) { ngx_http_core_main_conf_t *cmcf; cmcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_core_main_conf_t)); if (cmcf == NULL) { return NULL; } if (ngx_array_init(&cmcf->servers, cf->pool, 4, sizeof(ngx_http_core_srv_conf_t *)) != NGX_OK) { return NULL; } cmcf->server_names_hash_max_size = NGX_CONF_UNSET_UINT; cmcf->server_names_hash_bucket_size = NGX_CONF_UNSET_UINT; cmcf->variables_hash_max_size = NGX_CONF_UNSET_UINT; cmcf->variables_hash_bucket_size = NGX_CONF_UNSET_UINT; return cmcf; } static char * ngx_http_core_init_main_conf(ngx_conf_t *cf, void *conf) { ngx_http_core_main_conf_t *cmcf = conf; ngx_conf_init_uint_value(cmcf->server_names_hash_max_size, 512); ngx_conf_init_uint_value(cmcf->server_names_hash_bucket_size, ngx_cacheline_size); cmcf->server_names_hash_bucket_size = ngx_align(cmcf->server_names_hash_bucket_size, ngx_cacheline_size); ngx_conf_init_uint_value(cmcf->variables_hash_max_size, 1024); ngx_conf_init_uint_value(cmcf->variables_hash_bucket_size, 64); cmcf->variables_hash_bucket_size = ngx_align(cmcf->variables_hash_bucket_size, ngx_cacheline_size); if (cmcf->ncaptures) { cmcf->ncaptures = (cmcf->ncaptures + 1) * 3; } return NGX_CONF_OK; } static void * ngx_http_core_create_srv_conf(ngx_conf_t *cf) { ngx_http_core_srv_conf_t *cscf; cscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_core_srv_conf_t)); if (cscf == NULL) { return NULL; } /* * set by ngx_pcalloc(): * * conf->client_large_buffers.num = 0; */ if (ngx_array_init(&cscf->server_names, cf->temp_pool, 4, sizeof(ngx_http_server_name_t)) != NGX_OK) { return NULL; } cscf->connection_pool_size = NGX_CONF_UNSET_SIZE; cscf->request_pool_size = NGX_CONF_UNSET_SIZE; cscf->client_header_timeout = NGX_CONF_UNSET_MSEC; cscf->client_header_buffer_size = NGX_CONF_UNSET_SIZE; cscf->ignore_invalid_headers = NGX_CONF_UNSET; cscf->merge_slashes = NGX_CONF_UNSET; cscf->underscores_in_headers = NGX_CONF_UNSET; return cscf; } static char * ngx_http_core_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) { ngx_http_core_srv_conf_t *prev = parent; ngx_http_core_srv_conf_t *conf = child; ngx_str_t name; ngx_http_server_name_t *sn; /* TODO: it does not merge, it inits only */ ngx_conf_merge_size_value(conf->connection_pool_size, prev->connection_pool_size, 64 * sizeof(void *)); ngx_conf_merge_size_value(conf->request_pool_size, prev->request_pool_size, 4096); ngx_conf_merge_msec_value(conf->client_header_timeout, prev->client_header_timeout, 60000); ngx_conf_merge_size_value(conf->client_header_buffer_size, prev->client_header_buffer_size, 1024); ngx_conf_merge_bufs_value(conf->large_client_header_buffers, prev->large_client_header_buffers, 4, 8192); if (conf->large_client_header_buffers.size < conf->connection_pool_size) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "the \"large_client_header_buffers\" size must be " "equal to or greater than \"connection_pool_size\""); return NGX_CONF_ERROR; } ngx_conf_merge_value(conf->ignore_invalid_headers, prev->ignore_invalid_headers, 1); ngx_conf_merge_value(conf->merge_slashes, prev->merge_slashes, 1); ngx_conf_merge_value(conf->underscores_in_headers, prev->underscores_in_headers, 0); if (conf->server_names.nelts == 0) { /* the array has 4 empty preallocated elements, so push cannot fail */ sn = ngx_array_push(&conf->server_names); #if (NGX_PCRE) sn->regex = NULL; #endif sn->server = conf; ngx_str_set(&sn->name, ""); } sn = conf->server_names.elts; name = sn[0].name; #if (NGX_PCRE) if (sn->regex) { name.len++; name.data--; } else #endif if (name.data[0] == '.') { name.len--; name.data++; } conf->server_name.len = name.len; conf->server_name.data = ngx_pstrdup(cf->pool, &name); if (conf->server_name.data == NULL) { return NGX_CONF_ERROR; } return NGX_CONF_OK; } static void * ngx_http_core_create_loc_conf(ngx_conf_t *cf) { ngx_http_core_loc_conf_t *clcf; clcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_core_loc_conf_t)); if (clcf == NULL) { return NULL; } /* * set by ngx_pcalloc(): * * clcf->root = { 0, NULL }; * clcf->limit_except = 0; * clcf->post_action = { 0, NULL }; * clcf->types = NULL; * clcf->default_type = { 0, NULL }; * clcf->error_log = NULL; * clcf->error_pages = NULL; * clcf->try_files = NULL; * clcf->client_body_path = NULL; * clcf->regex = NULL; * clcf->exact_match = 0; * clcf->auto_redirect = 0; * clcf->alias = 0; * clcf->gzip_proxied = 0; * clcf->keepalive_disable = 0; */ clcf->client_max_body_size = NGX_CONF_UNSET; clcf->client_body_buffer_size = NGX_CONF_UNSET_SIZE; clcf->client_body_timeout = NGX_CONF_UNSET_MSEC; clcf->satisfy = NGX_CONF_UNSET_UINT; clcf->if_modified_since = NGX_CONF_UNSET_UINT; clcf->max_ranges = NGX_CONF_UNSET_UINT; clcf->client_body_in_file_only = NGX_CONF_UNSET_UINT; clcf->client_body_in_single_buffer = NGX_CONF_UNSET; clcf->internal = NGX_CONF_UNSET; clcf->sendfile = NGX_CONF_UNSET; clcf->sendfile_max_chunk = NGX_CONF_UNSET_SIZE; clcf->aio = NGX_CONF_UNSET; clcf->aio_write = NGX_CONF_UNSET; #if (NGX_THREADS) clcf->thread_pool = NGX_CONF_UNSET_PTR; clcf->thread_pool_value = NGX_CONF_UNSET_PTR; #endif clcf->read_ahead = NGX_CONF_UNSET_SIZE; clcf->directio = NGX_CONF_UNSET; clcf->directio_alignment = NGX_CONF_UNSET; clcf->tcp_nopush = NGX_CONF_UNSET; clcf->tcp_nodelay = NGX_CONF_UNSET; clcf->send_timeout = NGX_CONF_UNSET_MSEC; clcf->send_lowat = NGX_CONF_UNSET_SIZE; clcf->postpone_output = NGX_CONF_UNSET_SIZE; clcf->limit_rate = NGX_CONF_UNSET_SIZE; clcf->limit_rate_after = NGX_CONF_UNSET_SIZE; clcf->keepalive_timeout = NGX_CONF_UNSET_MSEC; clcf->keepalive_header = NGX_CONF_UNSET; clcf->keepalive_requests = NGX_CONF_UNSET_UINT; clcf->lingering_close = NGX_CONF_UNSET_UINT; clcf->lingering_time = NGX_CONF_UNSET_MSEC; clcf->lingering_timeout = NGX_CONF_UNSET_MSEC; clcf->resolver_timeout = NGX_CONF_UNSET_MSEC; clcf->reset_timedout_connection = NGX_CONF_UNSET; clcf->server_name_in_redirect = NGX_CONF_UNSET; clcf->port_in_redirect = NGX_CONF_UNSET; clcf->msie_padding = NGX_CONF_UNSET; clcf->msie_refresh = NGX_CONF_UNSET; clcf->log_not_found = NGX_CONF_UNSET; clcf->log_subrequest = NGX_CONF_UNSET; clcf->recursive_error_pages = NGX_CONF_UNSET; clcf->server_tokens = NGX_CONF_UNSET; clcf->chunked_transfer_encoding = NGX_CONF_UNSET; clcf->etag = NGX_CONF_UNSET; clcf->types_hash_max_size = NGX_CONF_UNSET_UINT; clcf->types_hash_bucket_size = NGX_CONF_UNSET_UINT; clcf->open_file_cache = NGX_CONF_UNSET_PTR; clcf->open_file_cache_valid = NGX_CONF_UNSET; clcf->open_file_cache_min_uses = NGX_CONF_UNSET_UINT; clcf->open_file_cache_errors = NGX_CONF_UNSET; clcf->open_file_cache_events = NGX_CONF_UNSET; #if (NGX_HTTP_GZIP) clcf->gzip_vary = NGX_CONF_UNSET; clcf->gzip_http_version = NGX_CONF_UNSET_UINT; #if (NGX_PCRE) clcf->gzip_disable = NGX_CONF_UNSET_PTR; #endif clcf->gzip_disable_msie6 = 3; #if (NGX_HTTP_DEGRADATION) clcf->gzip_disable_degradation = 3; #endif #endif #if (NGX_HAVE_OPENAT) clcf->disable_symlinks = NGX_CONF_UNSET_UINT; clcf->disable_symlinks_from = NGX_CONF_UNSET_PTR; #endif return clcf; } static ngx_str_t ngx_http_core_text_html_type = ngx_string("text/html"); static ngx_str_t ngx_http_core_image_gif_type = ngx_string("image/gif"); static ngx_str_t ngx_http_core_image_jpeg_type = ngx_string("image/jpeg"); static ngx_hash_key_t ngx_http_core_default_types[] = { { ngx_string("html"), 0, &ngx_http_core_text_html_type }, { ngx_string("gif"), 0, &ngx_http_core_image_gif_type }, { ngx_string("jpg"), 0, &ngx_http_core_image_jpeg_type }, { ngx_null_string, 0, NULL } }; static char * ngx_http_core_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) { ngx_http_core_loc_conf_t *prev = parent; ngx_http_core_loc_conf_t *conf = child; ngx_uint_t i; ngx_hash_key_t *type; ngx_hash_init_t types_hash; if (conf->root.data == NULL) { conf->alias = prev->alias; conf->root = prev->root; conf->root_lengths = prev->root_lengths; conf->root_values = prev->root_values; if (prev->root.data == NULL) { ngx_str_set(&conf->root, "html"); if (ngx_conf_full_name(cf->cycle, &conf->root, 0) != NGX_OK) { return NGX_CONF_ERROR; } } } if (conf->post_action.data == NULL) { conf->post_action = prev->post_action; } ngx_conf_merge_uint_value(conf->types_hash_max_size, prev->types_hash_max_size, 1024); ngx_conf_merge_uint_value(conf->types_hash_bucket_size, prev->types_hash_bucket_size, 64); conf->types_hash_bucket_size = ngx_align(conf->types_hash_bucket_size, ngx_cacheline_size); /* * the special handling of the "types" directive in the "http" section * to inherit the http's conf->types_hash to all servers */ if (prev->types && prev->types_hash.buckets == NULL) { types_hash.hash = &prev->types_hash; types_hash.key = ngx_hash_key_lc; types_hash.max_size = conf->types_hash_max_size; types_hash.bucket_size = conf->types_hash_bucket_size; types_hash.name = "types_hash"; types_hash.pool = cf->pool; types_hash.temp_pool = NULL; if (ngx_hash_init(&types_hash, prev->types->elts, prev->types->nelts) != NGX_OK) { return NGX_CONF_ERROR; } } if (conf->types == NULL) { conf->types = prev->types; conf->types_hash = prev->types_hash; } if (conf->types == NULL) { conf->types = ngx_array_create(cf->pool, 3, sizeof(ngx_hash_key_t)); if (conf->types == NULL) { return NGX_CONF_ERROR; } for (i = 0; ngx_http_core_default_types[i].key.len; i++) { type = ngx_array_push(conf->types); if (type == NULL) { return NGX_CONF_ERROR; } type->key = ngx_http_core_default_types[i].key; type->key_hash = ngx_hash_key_lc(ngx_http_core_default_types[i].key.data, ngx_http_core_default_types[i].key.len); type->value = ngx_http_core_default_types[i].value; } } if (conf->types_hash.buckets == NULL) { types_hash.hash = &conf->types_hash; types_hash.key = ngx_hash_key_lc; types_hash.max_size = conf->types_hash_max_size; types_hash.bucket_size = conf->types_hash_bucket_size; types_hash.name = "types_hash"; types_hash.pool = cf->pool; types_hash.temp_pool = NULL; if (ngx_hash_init(&types_hash, conf->types->elts, conf->types->nelts) != NGX_OK) { return NGX_CONF_ERROR; } } if (conf->error_log == NULL) { if (prev->error_log) { conf->error_log = prev->error_log; } else { conf->error_log = &cf->cycle->new_log; } } if (conf->error_pages == NULL && prev->error_pages) { conf->error_pages = prev->error_pages; } ngx_conf_merge_str_value(conf->default_type, prev->default_type, "text/plain"); ngx_conf_merge_off_value(conf->client_max_body_size, prev->client_max_body_size, 1 * 1024 * 1024); ngx_conf_merge_size_value(conf->client_body_buffer_size, prev->client_body_buffer_size, (size_t) 2 * ngx_pagesize); ngx_conf_merge_msec_value(conf->client_body_timeout, prev->client_body_timeout, 60000); ngx_conf_merge_bitmask_value(conf->keepalive_disable, prev->keepalive_disable, (NGX_CONF_BITMASK_SET |NGX_HTTP_KEEPALIVE_DISABLE_MSIE6)); ngx_conf_merge_uint_value(conf->satisfy, prev->satisfy, NGX_HTTP_SATISFY_ALL); ngx_conf_merge_uint_value(conf->if_modified_since, prev->if_modified_since, NGX_HTTP_IMS_EXACT); ngx_conf_merge_uint_value(conf->max_ranges, prev->max_ranges, NGX_MAX_INT32_VALUE); ngx_conf_merge_uint_value(conf->client_body_in_file_only, prev->client_body_in_file_only, NGX_HTTP_REQUEST_BODY_FILE_OFF); ngx_conf_merge_value(conf->client_body_in_single_buffer, prev->client_body_in_single_buffer, 0); ngx_conf_merge_value(conf->internal, prev->internal, 0); ngx_conf_merge_value(conf->sendfile, prev->sendfile, 0); ngx_conf_merge_size_value(conf->sendfile_max_chunk, prev->sendfile_max_chunk, 0); ngx_conf_merge_value(conf->aio, prev->aio, NGX_HTTP_AIO_OFF); ngx_conf_merge_value(conf->aio_write, prev->aio_write, 0); #if (NGX_THREADS) ngx_conf_merge_ptr_value(conf->thread_pool, prev->thread_pool, NULL); ngx_conf_merge_ptr_value(conf->thread_pool_value, prev->thread_pool_value, NULL); #endif ngx_conf_merge_size_value(conf->read_ahead, prev->read_ahead, 0); ngx_conf_merge_off_value(conf->directio, prev->directio, NGX_OPEN_FILE_DIRECTIO_OFF); ngx_conf_merge_off_value(conf->directio_alignment, prev->directio_alignment, 512); ngx_conf_merge_value(conf->tcp_nopush, prev->tcp_nopush, 0); ngx_conf_merge_value(conf->tcp_nodelay, prev->tcp_nodelay, 1); ngx_conf_merge_msec_value(conf->send_timeout, prev->send_timeout, 60000); ngx_conf_merge_size_value(conf->send_lowat, prev->send_lowat, 0); ngx_conf_merge_size_value(conf->postpone_output, prev->postpone_output, 1460); ngx_conf_merge_size_value(conf->limit_rate, prev->limit_rate, 0); ngx_conf_merge_size_value(conf->limit_rate_after, prev->limit_rate_after, 0); ngx_conf_merge_msec_value(conf->keepalive_timeout, prev->keepalive_timeout, 75000); ngx_conf_merge_sec_value(conf->keepalive_header, prev->keepalive_header, 0); ngx_conf_merge_uint_value(conf->keepalive_requests, prev->keepalive_requests, 100); ngx_conf_merge_uint_value(conf->lingering_close, prev->lingering_close, NGX_HTTP_LINGERING_ON); ngx_conf_merge_msec_value(conf->lingering_time, prev->lingering_time, 30000); ngx_conf_merge_msec_value(conf->lingering_timeout, prev->lingering_timeout, 5000); ngx_conf_merge_msec_value(conf->resolver_timeout, prev->resolver_timeout, 30000); if (conf->resolver == NULL) { if (prev->resolver == NULL) { /* * create dummy resolver in http {} context * to inherit it in all servers */ prev->resolver = ngx_resolver_create(cf, NULL, 0); if (prev->resolver == NULL) { return NGX_CONF_ERROR; } } conf->resolver = prev->resolver; } if (ngx_conf_merge_path_value(cf, &conf->client_body_temp_path, prev->client_body_temp_path, &ngx_http_client_temp_path) != NGX_OK) { return NGX_CONF_ERROR; } ngx_conf_merge_value(conf->reset_timedout_connection, prev->reset_timedout_connection, 0); ngx_conf_merge_value(conf->server_name_in_redirect, prev->server_name_in_redirect, 0); ngx_conf_merge_value(conf->port_in_redirect, prev->port_in_redirect, 1); ngx_conf_merge_value(conf->msie_padding, prev->msie_padding, 1); ngx_conf_merge_value(conf->msie_refresh, prev->msie_refresh, 0); ngx_conf_merge_value(conf->log_not_found, prev->log_not_found, 1); ngx_conf_merge_value(conf->log_subrequest, prev->log_subrequest, 0); ngx_conf_merge_value(conf->recursive_error_pages, prev->recursive_error_pages, 0); ngx_conf_merge_value(conf->server_tokens, prev->server_tokens, 1); ngx_conf_merge_value(conf->chunked_transfer_encoding, prev->chunked_transfer_encoding, 1); ngx_conf_merge_value(conf->etag, prev->etag, 1); ngx_conf_merge_ptr_value(conf->open_file_cache, prev->open_file_cache, NULL); ngx_conf_merge_sec_value(conf->open_file_cache_valid, prev->open_file_cache_valid, 60); ngx_conf_merge_uint_value(conf->open_file_cache_min_uses, prev->open_file_cache_min_uses, 1); ngx_conf_merge_sec_value(conf->open_file_cache_errors, prev->open_file_cache_errors, 0); ngx_conf_merge_sec_value(conf->open_file_cache_events, prev->open_file_cache_events, 0); #if (NGX_HTTP_GZIP) ngx_conf_merge_value(conf->gzip_vary, prev->gzip_vary, 0); ngx_conf_merge_uint_value(conf->gzip_http_version, prev->gzip_http_version, NGX_HTTP_VERSION_11); ngx_conf_merge_bitmask_value(conf->gzip_proxied, prev->gzip_proxied, (NGX_CONF_BITMASK_SET|NGX_HTTP_GZIP_PROXIED_OFF)); #if (NGX_PCRE) ngx_conf_merge_ptr_value(conf->gzip_disable, prev->gzip_disable, NULL); #endif if (conf->gzip_disable_msie6 == 3) { conf->gzip_disable_msie6 = (prev->gzip_disable_msie6 == 3) ? 0 : prev->gzip_disable_msie6; } #if (NGX_HTTP_DEGRADATION) if (conf->gzip_disable_degradation == 3) { conf->gzip_disable_degradation = (prev->gzip_disable_degradation == 3) ? 0 : prev->gzip_disable_degradation; } #endif #endif #if (NGX_HAVE_OPENAT) ngx_conf_merge_uint_value(conf->disable_symlinks, prev->disable_symlinks, NGX_DISABLE_SYMLINKS_OFF); ngx_conf_merge_ptr_value(conf->disable_symlinks_from, prev->disable_symlinks_from, NULL); #endif return NGX_CONF_OK; } static char * ngx_http_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_core_srv_conf_t *cscf = conf; ngx_str_t *value, size; ngx_url_t u; ngx_uint_t n; ngx_http_listen_opt_t lsopt; cscf->listen = 1; value = cf->args->elts; ngx_memzero(&u, sizeof(ngx_url_t)); u.url = value[1]; u.listen = 1; u.default_port = 80; if (ngx_parse_url(cf->pool, &u) != NGX_OK) { if (u.err) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%s in \"%V\" of the \"listen\" directive", u.err, &u.url); } return NGX_CONF_ERROR; } ngx_memzero(&lsopt, sizeof(ngx_http_listen_opt_t)); ngx_memcpy(&lsopt.sockaddr.sockaddr, &u.sockaddr, u.socklen); lsopt.socklen = u.socklen; lsopt.backlog = NGX_LISTEN_BACKLOG; lsopt.rcvbuf = -1; lsopt.sndbuf = -1; #if (NGX_HAVE_SETFIB) lsopt.setfib = -1; #endif #if (NGX_HAVE_TCP_FASTOPEN) lsopt.fastopen = -1; #endif lsopt.wildcard = u.wildcard; #if (NGX_HAVE_INET6) lsopt.ipv6only = 1; #endif (void) ngx_sock_ntop(&lsopt.sockaddr.sockaddr, lsopt.socklen, lsopt.addr, NGX_SOCKADDR_STRLEN, 1); for (n = 2; n < cf->args->nelts; n++) { if (ngx_strcmp(value[n].data, "default_server") == 0 || ngx_strcmp(value[n].data, "default") == 0) { lsopt.default_server = 1; continue; } if (ngx_strcmp(value[n].data, "bind") == 0) { lsopt.set = 1; lsopt.bind = 1; continue; } #if (NGX_HAVE_SETFIB) if (ngx_strncmp(value[n].data, "setfib=", 7) == 0) { lsopt.setfib = ngx_atoi(value[n].data + 7, value[n].len - 7); lsopt.set = 1; lsopt.bind = 1; if (lsopt.setfib == NGX_ERROR) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid setfib \"%V\"", &value[n]); return NGX_CONF_ERROR; } continue; } #endif #if (NGX_HAVE_TCP_FASTOPEN) if (ngx_strncmp(value[n].data, "fastopen=", 9) == 0) { lsopt.fastopen = ngx_atoi(value[n].data + 9, value[n].len - 9); lsopt.set = 1; lsopt.bind = 1; if (lsopt.fastopen == NGX_ERROR) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid fastopen \"%V\"", &value[n]); return NGX_CONF_ERROR; } continue; } #endif if (ngx_strncmp(value[n].data, "backlog=", 8) == 0) { lsopt.backlog = ngx_atoi(value[n].data + 8, value[n].len - 8); lsopt.set = 1; lsopt.bind = 1; if (lsopt.backlog == NGX_ERROR || lsopt.backlog == 0) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid backlog \"%V\"", &value[n]); return NGX_CONF_ERROR; } continue; } if (ngx_strncmp(value[n].data, "rcvbuf=", 7) == 0) { size.len = value[n].len - 7; size.data = value[n].data + 7; lsopt.rcvbuf = ngx_parse_size(&size); lsopt.set = 1; lsopt.bind = 1; if (lsopt.rcvbuf == NGX_ERROR) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid rcvbuf \"%V\"", &value[n]); return NGX_CONF_ERROR; } continue; } if (ngx_strncmp(value[n].data, "sndbuf=", 7) == 0) { size.len = value[n].len - 7; size.data = value[n].data + 7; lsopt.sndbuf = ngx_parse_size(&size); lsopt.set = 1; lsopt.bind = 1; if (lsopt.sndbuf == NGX_ERROR) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid sndbuf \"%V\"", &value[n]); return NGX_CONF_ERROR; } continue; } if (ngx_strncmp(value[n].data, "accept_filter=", 14) == 0) { #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER) lsopt.accept_filter = (char *) &value[n].data[14]; lsopt.set = 1; lsopt.bind = 1; #else ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "accept filters \"%V\" are not supported " "on this platform, ignored", &value[n]); #endif continue; } if (ngx_strcmp(value[n].data, "deferred") == 0) { #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT) lsopt.deferred_accept = 1; lsopt.set = 1; lsopt.bind = 1; #else ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "the deferred accept is not supported " "on this platform, ignored"); #endif continue; } if (ngx_strncmp(value[n].data, "ipv6only=o", 10) == 0) { #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) struct sockaddr *sa; sa = &lsopt.sockaddr.sockaddr; if (sa->sa_family == AF_INET6) { if (ngx_strcmp(&value[n].data[10], "n") == 0) { lsopt.ipv6only = 1; } else if (ngx_strcmp(&value[n].data[10], "ff") == 0) { lsopt.ipv6only = 0; } else { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid ipv6only flags \"%s\"", &value[n].data[9]); return NGX_CONF_ERROR; } lsopt.set = 1; lsopt.bind = 1; } else { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "ipv6only is not supported " "on addr \"%s\", ignored", lsopt.addr); } continue; #else ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "ipv6only is not supported " "on this platform"); return NGX_CONF_ERROR; #endif } if (ngx_strcmp(value[n].data, "reuseport") == 0) { #if (NGX_HAVE_REUSEPORT) lsopt.reuseport = 1; lsopt.set = 1; lsopt.bind = 1; #else ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "reuseport is not supported " "on this platform, ignored"); #endif continue; } if (ngx_strcmp(value[n].data, "ssl") == 0) { #if (NGX_HTTP_SSL) lsopt.ssl = 1; continue; #else ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "the \"ssl\" parameter requires " "ngx_http_ssl_module"); return NGX_CONF_ERROR; #endif } if (ngx_strcmp(value[n].data, "http2") == 0) { #if (NGX_HTTP_V2) lsopt.http2 = 1; continue; #else ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "the \"http2\" parameter requires " "ngx_http_v2_module"); return NGX_CONF_ERROR; #endif } if (ngx_strcmp(value[n].data, "spdy") == 0) { ngx_conf_log_error(NGX_LOG_WARN, cf, 0, "invalid parameter \"spdy\": " "ngx_http_spdy_module was superseded " "by ngx_http_v2_module"); continue; } if (ngx_strncmp(value[n].data, "so_keepalive=", 13) == 0) { if (ngx_strcmp(&value[n].data[13], "on") == 0) { lsopt.so_keepalive = 1; } else if (ngx_strcmp(&value[n].data[13], "off") == 0) { lsopt.so_keepalive = 2; } else { #if (NGX_HAVE_KEEPALIVE_TUNABLE) u_char *p, *end; ngx_str_t s; end = value[n].data + value[n].len; s.data = value[n].data + 13; p = ngx_strlchr(s.data, end, ':'); if (p == NULL) { p = end; } if (p > s.data) { s.len = p - s.data; lsopt.tcp_keepidle = ngx_parse_time(&s, 1); if (lsopt.tcp_keepidle == (time_t) NGX_ERROR) { goto invalid_so_keepalive; } } s.data = (p < end) ? (p + 1) : end; p = ngx_strlchr(s.data, end, ':'); if (p == NULL) { p = end; } if (p > s.data) { s.len = p - s.data; lsopt.tcp_keepintvl = ngx_parse_time(&s, 1); if (lsopt.tcp_keepintvl == (time_t) NGX_ERROR) { goto invalid_so_keepalive; } } s.data = (p < end) ? (p + 1) : end; if (s.data < end) { s.len = end - s.data; lsopt.tcp_keepcnt = ngx_atoi(s.data, s.len); if (lsopt.tcp_keepcnt == NGX_ERROR) { goto invalid_so_keepalive; } } if (lsopt.tcp_keepidle == 0 && lsopt.tcp_keepintvl == 0 && lsopt.tcp_keepcnt == 0) { goto invalid_so_keepalive; } lsopt.so_keepalive = 1; #else ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "the \"so_keepalive\" parameter accepts " "only \"on\" or \"off\" on this platform"); return NGX_CONF_ERROR; #endif } lsopt.set = 1; lsopt.bind = 1; continue; #if (NGX_HAVE_KEEPALIVE_TUNABLE) invalid_so_keepalive: ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid so_keepalive value: \"%s\"", &value[n].data[13]); return NGX_CONF_ERROR; #endif } if (ngx_strcmp(value[n].data, "proxy_protocol") == 0) { lsopt.proxy_protocol = 1; continue; } ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameter \"%V\"", &value[n]); return NGX_CONF_ERROR; } if (ngx_http_add_listen(cf, cscf, &lsopt) == NGX_OK) { return NGX_CONF_OK; } return NGX_CONF_ERROR; } static char * ngx_http_core_server_name(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_core_srv_conf_t *cscf = conf; u_char ch; ngx_str_t *value; ngx_uint_t i; ngx_http_server_name_t *sn; value = cf->args->elts; for (i = 1; i < cf->args->nelts; i++) { ch = value[i].data[0]; if ((ch == '*' && (value[i].len < 3 || value[i].data[1] != '.')) || (ch == '.' && value[i].len < 2)) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "server name \"%V\" is invalid", &value[i]); return NGX_CONF_ERROR; } if (ngx_strchr(value[i].data, '/')) { ngx_conf_log_error(NGX_LOG_WARN, cf, 0, "server name \"%V\" has suspicious symbols", &value[i]); } sn = ngx_array_push(&cscf->server_names); if (sn == NULL) { return NGX_CONF_ERROR; } #if (NGX_PCRE) sn->regex = NULL; #endif sn->server = cscf; if (ngx_strcasecmp(value[i].data, (u_char *) "$hostname") == 0) { sn->name = cf->cycle->hostname; } else { sn->name = value[i]; } if (value[i].data[0] != '~') { ngx_strlow(sn->name.data, sn->name.data, sn->name.len); continue; } #if (NGX_PCRE) { u_char *p; ngx_regex_compile_t rc; u_char errstr[NGX_MAX_CONF_ERRSTR]; if (value[i].len == 1) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "empty regex in server name \"%V\"", &value[i]); return NGX_CONF_ERROR; } value[i].len--; value[i].data++; ngx_memzero(&rc, sizeof(ngx_regex_compile_t)); rc.pattern = value[i]; rc.err.len = NGX_MAX_CONF_ERRSTR; rc.err.data = errstr; for (p = value[i].data; p < value[i].data + value[i].len; p++) { if (*p >= 'A' && *p <= 'Z') { rc.options = NGX_REGEX_CASELESS; break; } } sn->regex = ngx_http_regex_compile(cf, &rc); if (sn->regex == NULL) { return NGX_CONF_ERROR; } sn->name = value[i]; cscf->captures = (rc.captures > 0); } #else ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "using regex \"%V\" " "requires PCRE library", &value[i]); return NGX_CONF_ERROR; #endif } return NGX_CONF_OK; } static char * ngx_http_core_root(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_core_loc_conf_t *clcf = conf; ngx_str_t *value; ngx_int_t alias; ngx_uint_t n; ngx_http_script_compile_t sc; alias = (cmd->name.len == sizeof("alias") - 1) ? 1 : 0; if (clcf->root.data) { if ((clcf->alias != 0) == alias) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"%V\" directive is duplicate", &cmd->name); } else { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"%V\" directive is duplicate, " "\"%s\" directive was specified earlier", &cmd->name, clcf->alias ? "alias" : "root"); } return NGX_CONF_ERROR; } if (clcf->named && alias) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "the \"alias\" directive cannot be used " "inside the named location"); return NGX_CONF_ERROR; } value = cf->args->elts; if (ngx_strstr(value[1].data, "$document_root") || ngx_strstr(value[1].data, "${document_root}")) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "the $document_root variable cannot be used " "in the \"%V\" directive", &cmd->name); return NGX_CONF_ERROR; } if (ngx_strstr(value[1].data, "$realpath_root") || ngx_strstr(value[1].data, "${realpath_root}")) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "the $realpath_root variable cannot be used " "in the \"%V\" directive", &cmd->name); return NGX_CONF_ERROR; } clcf->alias = alias ? clcf->name.len : 0; clcf->root = value[1]; if (!alias && clcf->root.len > 0 && clcf->root.data[clcf->root.len - 1] == '/') { clcf->root.len--; } if (clcf->root.data[0] != '$') { if (ngx_conf_full_name(cf->cycle, &clcf->root, 0) != NGX_OK) { return NGX_CONF_ERROR; } } n = ngx_http_script_variables_count(&clcf->root); ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); sc.variables = n; #if (NGX_PCRE) if (alias && clcf->regex) { clcf->alias = NGX_MAX_SIZE_T_VALUE; n = 1; } #endif if (n) { sc.cf = cf; sc.source = &clcf->root; sc.lengths = &clcf->root_lengths; sc.values = &clcf->root_values; sc.complete_lengths = 1; sc.complete_values = 1; if (ngx_http_script_compile(&sc) != NGX_OK) { return NGX_CONF_ERROR; } } return NGX_CONF_OK; } static ngx_http_method_name_t ngx_methods_names[] = { { (u_char *) "GET", (uint32_t) ~NGX_HTTP_GET }, { (u_char *) "HEAD", (uint32_t) ~NGX_HTTP_HEAD }, { (u_char *) "POST", (uint32_t) ~NGX_HTTP_POST }, { (u_char *) "PUT", (uint32_t) ~NGX_HTTP_PUT }, { (u_char *) "DELETE", (uint32_t) ~NGX_HTTP_DELETE }, { (u_char *) "MKCOL", (uint32_t) ~NGX_HTTP_MKCOL }, { (u_char *) "COPY", (uint32_t) ~NGX_HTTP_COPY }, { (u_char *) "MOVE", (uint32_t) ~NGX_HTTP_MOVE }, { (u_char *) "OPTIONS", (uint32_t) ~NGX_HTTP_OPTIONS }, { (u_char *) "PROPFIND", (uint32_t) ~NGX_HTTP_PROPFIND }, { (u_char *) "PROPPATCH", (uint32_t) ~NGX_HTTP_PROPPATCH }, { (u_char *) "LOCK", (uint32_t) ~NGX_HTTP_LOCK }, { (u_char *) "UNLOCK", (uint32_t) ~NGX_HTTP_UNLOCK }, { (u_char *) "PATCH", (uint32_t) ~NGX_HTTP_PATCH }, { NULL, 0 } }; static char * ngx_http_core_limit_except(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_core_loc_conf_t *pclcf = conf; char *rv; void *mconf; ngx_str_t *value; ngx_uint_t i; ngx_conf_t save; ngx_http_module_t *module; ngx_http_conf_ctx_t *ctx, *pctx; ngx_http_method_name_t *name; ngx_http_core_loc_conf_t *clcf; if (pclcf->limit_except) { return "duplicate"; } pclcf->limit_except = 0xffffffff; value = cf->args->elts; for (i = 1; i < cf->args->nelts; i++) { for (name = ngx_methods_names; name->name; name++) { if (ngx_strcasecmp(value[i].data, name->name) == 0) { pclcf->limit_except &= name->method; goto next; } } ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid method \"%V\"", &value[i]); return NGX_CONF_ERROR; next: continue; } if (!(pclcf->limit_except & NGX_HTTP_GET)) { pclcf->limit_except &= (uint32_t) ~NGX_HTTP_HEAD; } ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); if (ctx == NULL) { return NGX_CONF_ERROR; } pctx = cf->ctx; ctx->main_conf = pctx->main_conf; ctx->srv_conf = pctx->srv_conf; ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); if (ctx->loc_conf == NULL) { return NGX_CONF_ERROR; } for (i = 0; cf->cycle->modules[i]; i++) { if (cf->cycle->modules[i]->type != NGX_HTTP_MODULE) { continue; } module = cf->cycle->modules[i]->ctx; if (module->create_loc_conf) { mconf = module->create_loc_conf(cf); if (mconf == NULL) { return NGX_CONF_ERROR; } ctx->loc_conf[cf->cycle->modules[i]->ctx_index] = mconf; } } clcf = ctx->loc_conf[ngx_http_core_module.ctx_index]; pclcf->limit_except_loc_conf = ctx->loc_conf; clcf->loc_conf = ctx->loc_conf; clcf->name = pclcf->name; clcf->noname = 1; clcf->lmt_excpt = 1; if (ngx_http_add_location(cf, &pclcf->locations, clcf) != NGX_OK) { return NGX_CONF_ERROR; } save = *cf; cf->ctx = ctx; cf->cmd_type = NGX_HTTP_LMT_CONF; rv = ngx_conf_parse(cf, NULL); *cf = save; return rv; } static char * ngx_http_core_set_aio(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_core_loc_conf_t *clcf = conf; ngx_str_t *value; if (clcf->aio != NGX_CONF_UNSET) { return "is duplicate"; } #if (NGX_THREADS) clcf->thread_pool = NULL; clcf->thread_pool_value = NULL; #endif value = cf->args->elts; if (ngx_strcmp(value[1].data, "off") == 0) { clcf->aio = NGX_HTTP_AIO_OFF; return NGX_CONF_OK; } if (ngx_strcmp(value[1].data, "on") == 0) { #if (NGX_HAVE_FILE_AIO) clcf->aio = NGX_HTTP_AIO_ON; return NGX_CONF_OK; #else ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"aio on\" " "is unsupported on this platform"); return NGX_CONF_ERROR; #endif } #if (NGX_HAVE_AIO_SENDFILE) if (ngx_strcmp(value[1].data, "sendfile") == 0) { clcf->aio = NGX_HTTP_AIO_ON; ngx_conf_log_error(NGX_LOG_WARN, cf, 0, "the \"sendfile\" parameter of " "the \"aio\" directive is deprecated"); return NGX_CONF_OK; } #endif if (ngx_strncmp(value[1].data, "threads", 7) == 0 && (value[1].len == 7 || value[1].data[7] == '=')) { #if (NGX_THREADS) ngx_str_t name; ngx_thread_pool_t *tp; ngx_http_complex_value_t cv; ngx_http_compile_complex_value_t ccv; clcf->aio = NGX_HTTP_AIO_THREADS; if (value[1].len >= 8) { name.len = value[1].len - 8; name.data = value[1].data + 8; ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); ccv.cf = cf; ccv.value = &name; ccv.complex_value = &cv; if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { return NGX_CONF_ERROR; } if (cv.lengths != NULL) { clcf->thread_pool_value = ngx_palloc(cf->pool, sizeof(ngx_http_complex_value_t)); if (clcf->thread_pool_value == NULL) { return NGX_CONF_ERROR; } *clcf->thread_pool_value = cv; return NGX_CONF_OK; } tp = ngx_thread_pool_add(cf, &name); } else { tp = ngx_thread_pool_add(cf, NULL); } if (tp == NULL) { return NGX_CONF_ERROR; } clcf->thread_pool = tp; return NGX_CONF_OK; #else ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"aio threads\" " "is unsupported on this platform"); return NGX_CONF_ERROR; #endif } return "invalid value"; } static char * ngx_http_core_directio(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_core_loc_conf_t *clcf = conf; ngx_str_t *value; if (clcf->directio != NGX_CONF_UNSET) { return "is duplicate"; } value = cf->args->elts; if (ngx_strcmp(value[1].data, "off") == 0) { clcf->directio = NGX_OPEN_FILE_DIRECTIO_OFF; return NGX_CONF_OK; } clcf->directio = ngx_parse_offset(&value[1]); if (clcf->directio == (off_t) NGX_ERROR) { return "invalid value"; } return NGX_CONF_OK; } static char * ngx_http_core_error_page(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_core_loc_conf_t *clcf = conf; u_char *p; ngx_int_t overwrite; ngx_str_t *value, uri, args; ngx_uint_t i, n; ngx_http_err_page_t *err; ngx_http_complex_value_t cv; ngx_http_compile_complex_value_t ccv; if (clcf->error_pages == NULL) { clcf->error_pages = ngx_array_create(cf->pool, 4, sizeof(ngx_http_err_page_t)); if (clcf->error_pages == NULL) { return NGX_CONF_ERROR; } } value = cf->args->elts; i = cf->args->nelts - 2; if (value[i].data[0] == '=') { if (i == 1) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid value \"%V\"", &value[i]); return NGX_CONF_ERROR; } if (value[i].len > 1) { overwrite = ngx_atoi(&value[i].data[1], value[i].len - 1); if (overwrite == NGX_ERROR) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid value \"%V\"", &value[i]); return NGX_CONF_ERROR; } } else { overwrite = 0; } n = 2; } else { overwrite = -1; n = 1; } uri = value[cf->args->nelts - 1]; ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); ccv.cf = cf; ccv.value = &uri; ccv.complex_value = &cv; if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { return NGX_CONF_ERROR; } ngx_str_null(&args); if (cv.lengths == NULL && uri.len && uri.data[0] == '/') { p = (u_char *) ngx_strchr(uri.data, '?'); if (p) { cv.value.len = p - uri.data; cv.value.data = uri.data; p++; args.len = (uri.data + uri.len) - p; args.data = p; } } for (i = 1; i < cf->args->nelts - n; i++) { err = ngx_array_push(clcf->error_pages); if (err == NULL) { return NGX_CONF_ERROR; } err->status = ngx_atoi(value[i].data, value[i].len); if (err->status == NGX_ERROR || err->status == 499) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid value \"%V\"", &value[i]); return NGX_CONF_ERROR; } if (err->status < 300 || err->status > 599) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "value \"%V\" must be between 300 and 599", &value[i]); return NGX_CONF_ERROR; } err->overwrite = overwrite; if (overwrite == -1) { switch (err->status) { case NGX_HTTP_TO_HTTPS: case NGX_HTTPS_CERT_ERROR: case NGX_HTTPS_NO_CERT: err->overwrite = NGX_HTTP_BAD_REQUEST; default: break; } } err->value = cv; err->args = args; } return NGX_CONF_OK; } static char * ngx_http_core_try_files(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_core_loc_conf_t *clcf = conf; ngx_str_t *value; ngx_int_t code; ngx_uint_t i, n; ngx_http_try_file_t *tf; ngx_http_script_compile_t sc; ngx_http_core_main_conf_t *cmcf; if (clcf->try_files) { return "is duplicate"; } cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); cmcf->try_files = 1; tf = ngx_pcalloc(cf->pool, cf->args->nelts * sizeof(ngx_http_try_file_t)); if (tf == NULL) { return NGX_CONF_ERROR; } clcf->try_files = tf; value = cf->args->elts; for (i = 0; i < cf->args->nelts - 1; i++) { tf[i].name = value[i + 1]; if (tf[i].name.len > 0 && tf[i].name.data[tf[i].name.len - 1] == '/' && i + 2 < cf->args->nelts) { tf[i].test_dir = 1; tf[i].name.len--; tf[i].name.data[tf[i].name.len] = '\0'; } n = ngx_http_script_variables_count(&tf[i].name); if (n) { ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); sc.cf = cf; sc.source = &tf[i].name; sc.lengths = &tf[i].lengths; sc.values = &tf[i].values; sc.variables = n; sc.complete_lengths = 1; sc.complete_values = 1; if (ngx_http_script_compile(&sc) != NGX_OK) { return NGX_CONF_ERROR; } } else { /* add trailing '\0' to length */ tf[i].name.len++; } } if (tf[i - 1].name.data[0] == '=') { code = ngx_atoi(tf[i - 1].name.data + 1, tf[i - 1].name.len - 2); if (code == NGX_ERROR || code > 999) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid code \"%*s\"", tf[i - 1].name.len - 1, tf[i - 1].name.data); return NGX_CONF_ERROR; } tf[i].code = code; } return NGX_CONF_OK; } static char * ngx_http_core_open_file_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_core_loc_conf_t *clcf = conf; time_t inactive; ngx_str_t *value, s; ngx_int_t max; ngx_uint_t i; if (clcf->open_file_cache != NGX_CONF_UNSET_PTR) { return "is duplicate"; } value = cf->args->elts; max = 0; inactive = 60; for (i = 1; i < cf->args->nelts; i++) { if (ngx_strncmp(value[i].data, "max=", 4) == 0) { max = ngx_atoi(value[i].data + 4, value[i].len - 4); if (max <= 0) { goto failed; } continue; } if (ngx_strncmp(value[i].data, "inactive=", 9) == 0) { s.len = value[i].len - 9; s.data = value[i].data + 9; inactive = ngx_parse_time(&s, 1); if (inactive == (time_t) NGX_ERROR) { goto failed; } continue; } if (ngx_strcmp(value[i].data, "off") == 0) { clcf->open_file_cache = NULL; continue; } failed: ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid \"open_file_cache\" parameter \"%V\"", &value[i]); return NGX_CONF_ERROR; } if (clcf->open_file_cache == NULL) { return NGX_CONF_OK; } if (max == 0) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"open_file_cache\" must have the \"max\" parameter"); return NGX_CONF_ERROR; } clcf->open_file_cache = ngx_open_file_cache_init(cf->pool, max, inactive); if (clcf->open_file_cache) { return NGX_CONF_OK; } return NGX_CONF_ERROR; } static char * ngx_http_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_core_loc_conf_t *clcf = conf; return ngx_log_set_log(cf, &clcf->error_log); } static char * ngx_http_core_keepalive(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_core_loc_conf_t *clcf = conf; ngx_str_t *value; if (clcf->keepalive_timeout != NGX_CONF_UNSET_MSEC) { return "is duplicate"; } value = cf->args->elts; clcf->keepalive_timeout = ngx_parse_time(&value[1], 0); if (clcf->keepalive_timeout == (ngx_msec_t) NGX_ERROR) { return "invalid value"; } if (cf->args->nelts == 2) { return NGX_CONF_OK; } clcf->keepalive_header = ngx_parse_time(&value[2], 1); if (clcf->keepalive_header == (time_t) NGX_ERROR) { return "invalid value"; } return NGX_CONF_OK; } static char * ngx_http_core_internal(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_core_loc_conf_t *clcf = conf; if (clcf->internal != NGX_CONF_UNSET) { return "is duplicate"; } clcf->internal = 1; return NGX_CONF_OK; } static char * ngx_http_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_core_loc_conf_t *clcf = conf; ngx_str_t *value; if (clcf->resolver) { return "is duplicate"; } value = cf->args->elts; clcf->resolver = ngx_resolver_create(cf, &value[1], cf->args->nelts - 1); if (clcf->resolver == NULL) { return NGX_CONF_ERROR; } return NGX_CONF_OK; } #if (NGX_HTTP_GZIP) static char * ngx_http_gzip_disable(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_core_loc_conf_t *clcf = conf; #if (NGX_PCRE) ngx_str_t *value; ngx_uint_t i; ngx_regex_elt_t *re; ngx_regex_compile_t rc; u_char errstr[NGX_MAX_CONF_ERRSTR]; if (clcf->gzip_disable == NGX_CONF_UNSET_PTR) { clcf->gzip_disable = ngx_array_create(cf->pool, 2, sizeof(ngx_regex_elt_t)); if (clcf->gzip_disable == NULL) { return NGX_CONF_ERROR; } } value = cf->args->elts; ngx_memzero(&rc, sizeof(ngx_regex_compile_t)); rc.pool = cf->pool; rc.err.len = NGX_MAX_CONF_ERRSTR; rc.err.data = errstr; for (i = 1; i < cf->args->nelts; i++) { if (ngx_strcmp(value[i].data, "msie6") == 0) { clcf->gzip_disable_msie6 = 1; continue; } #if (NGX_HTTP_DEGRADATION) if (ngx_strcmp(value[i].data, "degradation") == 0) { clcf->gzip_disable_degradation = 1; continue; } #endif re = ngx_array_push(clcf->gzip_disable); if (re == NULL) { return NGX_CONF_ERROR; } rc.pattern = value[i]; rc.options = NGX_REGEX_CASELESS; if (ngx_regex_compile(&rc) != NGX_OK) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%V", &rc.err); return NGX_CONF_ERROR; } re->regex = rc.regex; re->name = value[i].data; } return NGX_CONF_OK; #else ngx_str_t *value; ngx_uint_t i; value = cf->args->elts; for (i = 1; i < cf->args->nelts; i++) { if (ngx_strcmp(value[i].data, "msie6") == 0) { clcf->gzip_disable_msie6 = 1; continue; } #if (NGX_HTTP_DEGRADATION) if (ngx_strcmp(value[i].data, "degradation") == 0) { clcf->gzip_disable_degradation = 1; continue; } #endif ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "without PCRE library \"gzip_disable\" supports " "builtin \"msie6\" and \"degradation\" mask only"); return NGX_CONF_ERROR; } return NGX_CONF_OK; #endif } #endif #if (NGX_HAVE_OPENAT) static char * ngx_http_disable_symlinks(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_core_loc_conf_t *clcf = conf; ngx_str_t *value; ngx_uint_t i; ngx_http_compile_complex_value_t ccv; if (clcf->disable_symlinks != NGX_CONF_UNSET_UINT) { return "is duplicate"; } value = cf->args->elts; for (i = 1; i < cf->args->nelts; i++) { if (ngx_strcmp(value[i].data, "off") == 0) { clcf->disable_symlinks = NGX_DISABLE_SYMLINKS_OFF; continue; } if (ngx_strcmp(value[i].data, "if_not_owner") == 0) { clcf->disable_symlinks = NGX_DISABLE_SYMLINKS_NOTOWNER; continue; } if (ngx_strcmp(value[i].data, "on") == 0) { clcf->disable_symlinks = NGX_DISABLE_SYMLINKS_ON; continue; } if (ngx_strncmp(value[i].data, "from=", 5) == 0) { value[i].len -= 5; value[i].data += 5; ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); ccv.cf = cf; ccv.value = &value[i]; ccv.complex_value = ngx_palloc(cf->pool, sizeof(ngx_http_complex_value_t)); if (ccv.complex_value == NULL) { return NGX_CONF_ERROR; } if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { return NGX_CONF_ERROR; } clcf->disable_symlinks_from = ccv.complex_value; continue; } ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameter \"%V\"", &value[i]); return NGX_CONF_ERROR; } if (clcf->disable_symlinks == NGX_CONF_UNSET_UINT) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"%V\" must have \"off\", \"on\" " "or \"if_not_owner\" parameter", &cmd->name); return NGX_CONF_ERROR; } if (cf->args->nelts == 2) { clcf->disable_symlinks_from = NULL; return NGX_CONF_OK; } if (clcf->disable_symlinks_from == NGX_CONF_UNSET_PTR) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "duplicate parameters \"%V %V\"", &value[1], &value[2]); return NGX_CONF_ERROR; } if (clcf->disable_symlinks == NGX_DISABLE_SYMLINKS_OFF) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"from=\" cannot be used with \"off\" parameter"); return NGX_CONF_ERROR; } return NGX_CONF_OK; } #endif static char * ngx_http_core_lowat_check(ngx_conf_t *cf, void *post, void *data) { #if (NGX_FREEBSD) ssize_t *np = data; if ((u_long) *np >= ngx_freebsd_net_inet_tcp_sendspace) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"send_lowat\" must be less than %d " "(sysctl net.inet.tcp.sendspace)", ngx_freebsd_net_inet_tcp_sendspace); return NGX_CONF_ERROR; } #elif !(NGX_HAVE_SO_SNDLOWAT) ssize_t *np = data; ngx_conf_log_error(NGX_LOG_WARN, cf, 0, "\"send_lowat\" is not supported, ignored"); *np = 0; #endif return NGX_CONF_OK; } static char * ngx_http_core_pool_size(ngx_conf_t *cf, void *post, void *data) { size_t *sp = data; if (*sp < NGX_MIN_POOL_SIZE) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "the pool size must be no less than %uz", NGX_MIN_POOL_SIZE); return NGX_CONF_ERROR; } if (*sp % NGX_POOL_ALIGNMENT) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "the pool size must be a multiple of %uz", NGX_POOL_ALIGNMENT); return NGX_CONF_ERROR; } return NGX_CONF_OK; }