nginx/src/http/ngx_http.c

/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_http.h>


static char *ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
static ngx_int_t ngx_http_init_phases(ngx_conf_t *cf,
    ngx_http_core_main_conf_t *cmcf);
static ngx_int_t ngx_http_init_headers_in_hash(ngx_conf_t *cf,
    ngx_http_core_main_conf_t *cmcf);
static ngx_int_t ngx_http_init_phase_handlers(ngx_conf_t *cf,
    ngx_http_core_main_conf_t *cmcf);

static ngx_int_t ngx_http_add_addresses(ngx_conf_t *cf,
    ngx_http_core_srv_conf_t *cscf, ngx_http_conf_port_t *port,
    ngx_http_listen_opt_t *lsopt);
static ngx_int_t ngx_http_add_address(ngx_conf_t *cf,
    ngx_http_core_srv_conf_t *cscf, ngx_http_conf_port_t *port,
    ngx_http_listen_opt_t *lsopt);
static ngx_int_t ngx_http_add_server(ngx_conf_t *cf,
    ngx_http_core_srv_conf_t *cscf, ngx_http_conf_addr_t *addr);

static char *ngx_http_merge_servers(ngx_conf_t *cf,
    ngx_http_core_main_conf_t *cmcf, ngx_http_module_t *module,
    ngx_uint_t ctx_index);
static char *ngx_http_merge_locations(ngx_conf_t *cf,
    ngx_queue_t *locations, void **loc_conf, ngx_http_module_t *module,
    ngx_uint_t ctx_index);
static ngx_int_t ngx_http_init_locations(ngx_conf_t *cf,
    ngx_http_core_srv_conf_t *cscf, ngx_http_core_loc_conf_t *pclcf);
static ngx_int_t ngx_http_init_static_location_trees(ngx_conf_t *cf,
    ngx_http_core_loc_conf_t *pclcf);
static ngx_int_t ngx_http_escape_location_name(ngx_conf_t *cf,
    ngx_http_core_loc_conf_t *clcf);
static ngx_int_t ngx_http_cmp_locations(const ngx_queue_t *one,
    const ngx_queue_t *two);
static ngx_int_t ngx_http_join_exact_locations(ngx_conf_t *cf,
    ngx_queue_t *locations);
static void ngx_http_create_locations_list(ngx_queue_t *locations,
    ngx_queue_t *q);
static ngx_http_location_tree_node_t *
    ngx_http_create_locations_tree(ngx_conf_t *cf, ngx_queue_t *locations,
    size_t prefix);

static ngx_int_t ngx_http_optimize_servers(ngx_conf_t *cf,
    ngx_http_core_main_conf_t *cmcf, ngx_array_t *ports);
static ngx_int_t ngx_http_server_names(ngx_conf_t *cf,
    ngx_http_core_main_conf_t *cmcf, ngx_http_conf_addr_t *addr);
static ngx_int_t ngx_http_cmp_conf_addrs(const void *one, const void *two);
static int ngx_libc_cdecl ngx_http_cmp_dns_wildcards(const void *one,
    const void *two);

static ngx_int_t ngx_http_init_listening(ngx_conf_t *cf,
    ngx_http_conf_port_t *port);
static ngx_listening_t *ngx_http_add_listening(ngx_conf_t *cf,
    ngx_http_conf_addr_t *addr);
static ngx_int_t ngx_http_add_addrs(ngx_conf_t *cf, ngx_http_port_t *hport,
    ngx_http_conf_addr_t *addr);
#if (NGX_HAVE_INET6)
static ngx_int_t ngx_http_add_addrs6(ngx_conf_t *cf, ngx_http_port_t *hport,
    ngx_http_conf_addr_t *addr);
#endif

ngx_uint_t   ngx_http_max_module;


ngx_http_output_header_filter_pt  ngx_http_top_header_filter;
ngx_http_output_body_filter_pt    ngx_http_top_body_filter;
ngx_http_request_body_filter_pt   ngx_http_top_request_body_filter;


ngx_str_t  ngx_http_html_default_types[] = …;


static ngx_command_t  ngx_http_commands[] = …;


static ngx_core_module_t  ngx_http_module_ctx = …;


ngx_module_t  ngx_http_module = …;


static char *
ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{ … }


static ngx_int_t
ngx_http_init_phases(ngx_conf_t *cf, ngx_http_core_main_conf_t *cmcf)
{ … }


static ngx_int_t
ngx_http_init_headers_in_hash(ngx_conf_t *cf, ngx_http_core_main_conf_t *cmcf)
{ … }


static ngx_int_t
ngx_http_init_phase_handlers(ngx_conf_t *cf, ngx_http_core_main_conf_t *cmcf)
{ … }


static char *
ngx_http_merge_servers(ngx_conf_t *cf, ngx_http_core_main_conf_t *cmcf,
    ngx_http_module_t *module, ngx_uint_t ctx_index)
{ … }


static char *
ngx_http_merge_locations(ngx_conf_t *cf, ngx_queue_t *locations,
    void **loc_conf, ngx_http_module_t *module, ngx_uint_t ctx_index)
{ … }


static ngx_int_t
ngx_http_init_locations(ngx_conf_t *cf, ngx_http_core_srv_conf_t *cscf,
    ngx_http_core_loc_conf_t *pclcf)
{ … }


static ngx_int_t
ngx_http_init_static_location_trees(ngx_conf_t *cf,
    ngx_http_core_loc_conf_t *pclcf)
{ … }


ngx_int_t
ngx_http_add_location(ngx_conf_t *cf, ngx_queue_t **locations,
    ngx_http_core_loc_conf_t *clcf)
{ … }


static ngx_int_t
ngx_http_escape_location_name(ngx_conf_t *cf, ngx_http_core_loc_conf_t *clcf)
{ … }


static ngx_int_t
ngx_http_cmp_locations(const ngx_queue_t *one, const ngx_queue_t *two)
{ … }


static ngx_int_t
ngx_http_join_exact_locations(ngx_conf_t *cf, ngx_queue_t *locations)
{ … }


static void
ngx_http_create_locations_list(ngx_queue_t *locations, ngx_queue_t *q)
{ … }


/*
 * to keep cache locality for left leaf nodes, allocate nodes in following
 * order: node, left subtree, right subtree, inclusive subtree
 */

static ngx_http_location_tree_node_t *
ngx_http_create_locations_tree(ngx_conf_t *cf, ngx_queue_t *locations,
    size_t prefix)
{ … }


ngx_int_t
ngx_http_add_listen(ngx_conf_t *cf, ngx_http_core_srv_conf_t *cscf,
    ngx_http_listen_opt_t *lsopt)
{ … }


static ngx_int_t
ngx_http_add_addresses(ngx_conf_t *cf, ngx_http_core_srv_conf_t *cscf,
    ngx_http_conf_port_t *port, ngx_http_listen_opt_t *lsopt)
{ … }


/*
 * add the server address, the server names and the server core module
 * configurations to the port list
 */

static ngx_int_t
ngx_http_add_address(ngx_conf_t *cf, ngx_http_core_srv_conf_t *cscf,
    ngx_http_conf_port_t *port, ngx_http_listen_opt_t *lsopt)
{ … }


/* add the server core module configuration to the address:port */

static ngx_int_t
ngx_http_add_server(ngx_conf_t *cf, ngx_http_core_srv_conf_t *cscf,
    ngx_http_conf_addr_t *addr)
{ … }


static ngx_int_t
ngx_http_optimize_servers(ngx_conf_t *cf, ngx_http_core_main_conf_t *cmcf,
    ngx_array_t *ports)
{ … }


static ngx_int_t
ngx_http_server_names(ngx_conf_t *cf, ngx_http_core_main_conf_t *cmcf,
    ngx_http_conf_addr_t *addr)
{ … }


static ngx_int_t
ngx_http_cmp_conf_addrs(const void *one, const void *two)
{ … }


static int ngx_libc_cdecl
ngx_http_cmp_dns_wildcards(const void *one, const void *two)
{ … }


static ngx_int_t
ngx_http_init_listening(ngx_conf_t *cf, ngx_http_conf_port_t *port)
{ … }


static ngx_listening_t *
ngx_http_add_listening(ngx_conf_t *cf, ngx_http_conf_addr_t *addr)
{ … }


static ngx_int_t
ngx_http_add_addrs(ngx_conf_t *cf, ngx_http_port_t *hport,
    ngx_http_conf_addr_t *addr)
{ … }


#if (NGX_HAVE_INET6)

static ngx_int_t
ngx_http_add_addrs6(ngx_conf_t *cf, ngx_http_port_t *hport,
    ngx_http_conf_addr_t *addr)
{ … }

#endif


char *
ngx_http_types_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{ … }


char *
ngx_http_merge_types(ngx_conf_t *cf, ngx_array_t **keys, ngx_hash_t *types_hash,
    ngx_array_t **prev_keys, ngx_hash_t *prev_types_hash,
    ngx_str_t *default_types)
{ … }


ngx_int_t
ngx_http_set_default_types(ngx_conf_t *cf, ngx_array_t **types,
    ngx_str_t *default_type)
{ … }