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nginx/src/http/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_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 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_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_deprecated_t ngx_conf_deprecated_optimize_server_names = {
ngx_conf_deprecated, "optimize_server_names", "server_name_in_redirect"
};
static ngx_conf_deprecated_t ngx_conf_deprecated_open_file_cache_retest = {
ngx_conf_deprecated, "open_file_cache_retest", "open_file_cache_valid"
};
static ngx_conf_deprecated_t ngx_conf_deprecated_satisfy_any = {
ngx_conf_deprecated, "satisfy_any", "satisfy"
};
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 }
};
#if (NGX_HAVE_FILE_AIO)
static ngx_conf_enum_t ngx_http_core_aio[] = {
{ ngx_string("off"), NGX_HTTP_AIO_OFF },
{ ngx_string("on"), NGX_HTTP_AIO_ON },
#if (NGX_HAVE_AIO_SENDFILE)
{ ngx_string("sendfile"), NGX_HTTP_AIO_SENDFILE },
#endif
{ ngx_null_string, 0 }
};
#endif
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("optimize_server_names"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_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),
&ngx_conf_deprecated_optimize_server_names },
{ 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 },
#if (NGX_HAVE_FILE_AIO)
{ ngx_string("aio"),
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, aio),
&ngx_http_core_aio },
#endif
{ 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("satisfy_any"),
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, satisfy),
&ngx_conf_deprecated_satisfy_any },
{ 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_retest"),
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),
&ngx_conf_deprecated_open_file_cache_retest },
{ 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 */
NULL, /* 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;
r->connection->unexpected_eof = 0;
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 && ngx_strncmp(name, clcf->name.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 {
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, clcf->name.data, alias);
ngx_memcpy(p, name, 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_http_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\"", 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) {
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->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;
}
#if (NGX_HTTP_SPDY)
if (r->spdy_stream) {
r->gzip_ok = 1;
return NGX_OK;
}
#endif
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_http_parse_time(e->value.data, e->value.len);
if (expires == NGX_ERROR) {
return NGX_DECLINED;
}
d = r->headers_out.date;
if (d) {
date = ngx_http_parse_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;
r->main->subrequests--;
if (r->main->subrequests == 0) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"subrequests cycle while processing \"%V\"", uri);
r->main->subrequests = 1;
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_SPDY)
sr->spdy_stream = r->spdy_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;
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;
in_addr_t inaddr;
ngx_int_t rc;
ngx_addr_t paddr;
ngx_cidr_t *cidr;
ngx_uint_t family, i;
#if (NGX_HAVE_INET6)
ngx_uint_t n;
struct in6_addr *inaddr6;
#endif
#if (NGX_SUPPRESS_WARN)
inaddr = 0;
#if (NGX_HAVE_INET6)
inaddr6 = NULL;
#endif
#endif
family = addr->sockaddr->sa_family;
if (family == AF_INET) {
inaddr = ((struct sockaddr_in *) addr->sockaddr)->sin_addr.s_addr;
}
#if (NGX_HAVE_INET6)
else if (family == AF_INET6) {
inaddr6 = &((struct sockaddr_in6 *) addr->sockaddr)->sin6_addr;
if (IN6_IS_ADDR_V4MAPPED(inaddr6)) {
family = AF_INET;
p = inaddr6->s6_addr;
inaddr = p[12] << 24;
inaddr += p[13] << 16;
inaddr += p[14] << 8;
inaddr += p[15];
inaddr = htonl(inaddr);
}
}
#endif
for (cidr = proxies->elts, i = 0; i < proxies->nelts; i++) {
if (cidr[i].family != family) {
goto next;
}
switch (family) {
#if (NGX_HAVE_INET6)
case AF_INET6:
for (n = 0; n < 16; n++) {
if ((inaddr6->s6_addr[n] & cidr[i].u.in6.mask.s6_addr[n])
!= cidr[i].u.in6.addr.s6_addr[n])
{
goto next;
}
}
break;
#endif
#if (NGX_HAVE_UNIX_DOMAIN)
case AF_UNIX:
break;
#endif
default: /* AF_INET */
if ((inaddr & cidr[i].u.in.mask) != cidr[i].u.in.addr) {
goto next;
}
break;
}
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(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;
next:
continue;
}
return NGX_DECLINED;
}
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; ngx_modules[i]; i++) {
if (ngx_modules[i]->type != NGX_HTTP_MODULE) {
continue;
}
module = ngx_modules[i]->ctx;
if (module->create_srv_conf) {
mconf = module->create_srv_conf(cf);
if (mconf == NULL) {
return NGX_CONF_ERROR;
}
ctx->srv_conf[ngx_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[ngx_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.u.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.u.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; ngx_modules[i]; i++) {
if (ngx_modules[i]->type != NGX_HTTP_MODULE) {
continue;
}
module = ngx_modules[i]->ctx;
if (module->create_loc_conf) {
ctx->loc_conf[ngx_modules[i]->ctx_index] =
module->create_loc_conf(cf);
if (ctx->loc_conf[ngx_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 (pclcf->name.len) {
/* 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 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, 256);
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;
#if (NGX_HAVE_FILE_AIO)
clcf->aio = NGX_CONF_UNSET;
#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);
#if (NGX_HAVE_FILE_AIO)
ngx_conf_merge_value(conf->aio, prev->aio, NGX_HTTP_AIO_OFF);
#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.u.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 && defined IPV6_V6ONLY)
lsopt.ipv6only = 1;
#endif
(void) ngx_sock_ntop(&lsopt.u.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.u.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, "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, "spdy") == 0) {
#if (NGX_HTTP_SPDY)
lsopt.spdy = 1;
continue;
#else
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"the \"spdy\" parameter requires "
"ngx_http_spdy_module");
return NGX_CONF_ERROR;
#endif
}
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 $realpath_root variable cannot be used "
"in the \"%V\" directive",
&cmd->name);
return NGX_CONF_ERROR;
}
clcf->alias = alias ? clcf->name.len : 0;
clcf->root = value[1];
if (!alias && clcf->root.data[clcf->root.len - 1] == '/') {
clcf->root.len--;
}
if (clcf->root.data[0] != '$') {
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; ngx_modules[i]; i++) {
if (ngx_modules[i]->type != NGX_HTTP_MODULE) {
continue;
}
module = ngx_modules[i]->ctx;
if (module->create_loc_conf) {
mconf = module->create_loc_conf(cf);
if (mconf == NULL) {
return NGX_CONF_ERROR;
}
ctx->loc_conf[ngx_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_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;
}
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