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ngx_http_core_module.c
5181 lines (3962 loc) · 139 KB
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ngx_http_core_module.c
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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_auth_delay(ngx_http_request_t *r);
static void ngx_http_core_auth_delay_handler(ngx_http_request_t *r);
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_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_server_tokens[] = {
{ ngx_string("off"), NGX_HTTP_SERVER_TOKENS_OFF },
{ ngx_string("on"), NGX_HTTP_SERVER_TOKENS_ON },
{ ngx_string("build"), NGX_HTTP_SERVER_TOKENS_BUILD },
{ 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("subrequest_output_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, subrequest_output_buffer_size),
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_http_set_complex_value_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_http_set_complex_value_size_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_core_loc_conf_t, limit_rate_after),
NULL },
{ ngx_string("keepalive_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, keepalive_time),
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("auth_delay"),
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, auth_delay),
NULL },
{ 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("absolute_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, absolute_redirect),
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_TAKE1,
ngx_conf_set_enum_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_core_loc_conf_t, server_tokens),
&ngx_http_core_server_tokens },
{ 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("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) {