diff options
Diffstat (limited to 'app/nginx/src/http/ngx_http.c')
| -rw-r--r-- | app/nginx/src/http/ngx_http.c | 2081 |
1 files changed, 2081 insertions, 0 deletions
diff --git a/app/nginx/src/http/ngx_http.c b/app/nginx/src/http/ngx_http.c new file mode 100644 index 0000000..c036389 --- /dev/null +++ b/app/nginx/src/http/ngx_http.c @@ -0,0 +1,2081 @@ + +/* + * 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_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[] = { + ngx_string("text/html"), + ngx_null_string +}; + + +static ngx_command_t ngx_http_commands[] = { + + { ngx_string("http"), + NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, + ngx_http_block, + 0, + 0, + NULL }, + + ngx_null_command +}; + + +static ngx_core_module_t ngx_http_module_ctx = { + ngx_string("http"), + NULL, + NULL +}; + + +ngx_module_t ngx_http_module = { + NGX_MODULE_V1, + &ngx_http_module_ctx, /* module context */ + ngx_http_commands, /* module directives */ + NGX_CORE_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 +}; + + +static char * +ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) +{ + char *rv; + ngx_uint_t mi, m, s; + ngx_conf_t pcf; + ngx_http_module_t *module; + ngx_http_conf_ctx_t *ctx; + ngx_http_core_loc_conf_t *clcf; + ngx_http_core_srv_conf_t **cscfp; + ngx_http_core_main_conf_t *cmcf; + + if (*(ngx_http_conf_ctx_t **) conf) { + return "is duplicate"; + } + + /* the main http context */ + + ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); + if (ctx == NULL) { + return NGX_CONF_ERROR; + } + + *(ngx_http_conf_ctx_t **) conf = ctx; + + + /* count the number of the http modules and set up their indices */ + + ngx_http_max_module = ngx_count_modules(cf->cycle, NGX_HTTP_MODULE); + + + /* the http main_conf context, it is the same in the all http contexts */ + + ctx->main_conf = ngx_pcalloc(cf->pool, + sizeof(void *) * ngx_http_max_module); + if (ctx->main_conf == NULL) { + return NGX_CONF_ERROR; + } + + + /* + * the http null srv_conf context, it is used to merge + * the server{}s' srv_conf's + */ + + ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); + if (ctx->srv_conf == NULL) { + return NGX_CONF_ERROR; + } + + + /* + * the http null loc_conf context, it is used to merge + * the server{}s' loc_conf's + */ + + ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); + if (ctx->loc_conf == NULL) { + return NGX_CONF_ERROR; + } + + + /* + * create the main_conf's, the null srv_conf's, and the null loc_conf's + * of the all http modules + */ + + for (m = 0; cf->cycle->modules[m]; m++) { + if (cf->cycle->modules[m]->type != NGX_HTTP_MODULE) { + continue; + } + + module = cf->cycle->modules[m]->ctx; + mi = cf->cycle->modules[m]->ctx_index; + + if (module->create_main_conf) { + ctx->main_conf[mi] = module->create_main_conf(cf); + if (ctx->main_conf[mi] == NULL) { + return NGX_CONF_ERROR; + } + } + + if (module->create_srv_conf) { + ctx->srv_conf[mi] = module->create_srv_conf(cf); + if (ctx->srv_conf[mi] == NULL) { + return NGX_CONF_ERROR; + } + } + + if (module->create_loc_conf) { + ctx->loc_conf[mi] = module->create_loc_conf(cf); + if (ctx->loc_conf[mi] == NULL) { + return NGX_CONF_ERROR; + } + } + } + + pcf = *cf; + cf->ctx = ctx; + + for (m = 0; cf->cycle->modules[m]; m++) { + if (cf->cycle->modules[m]->type != NGX_HTTP_MODULE) { + continue; + } + + module = cf->cycle->modules[m]->ctx; + + if (module->preconfiguration) { + if (module->preconfiguration(cf) != NGX_OK) { + return NGX_CONF_ERROR; + } + } + } + + /* parse inside the http{} block */ + + cf->module_type = NGX_HTTP_MODULE; + cf->cmd_type = NGX_HTTP_MAIN_CONF; + rv = ngx_conf_parse(cf, NULL); + + if (rv != NGX_CONF_OK) { + goto failed; + } + + /* + * init http{} main_conf's, merge the server{}s' srv_conf's + * and its location{}s' loc_conf's + */ + + cmcf = ctx->main_conf[ngx_http_core_module.ctx_index]; + cscfp = cmcf->servers.elts; + + for (m = 0; cf->cycle->modules[m]; m++) { + if (cf->cycle->modules[m]->type != NGX_HTTP_MODULE) { + continue; + } + + module = cf->cycle->modules[m]->ctx; + mi = cf->cycle->modules[m]->ctx_index; + + /* init http{} main_conf's */ + + if (module->init_main_conf) { + rv = module->init_main_conf(cf, ctx->main_conf[mi]); + if (rv != NGX_CONF_OK) { + goto failed; + } + } + + rv = ngx_http_merge_servers(cf, cmcf, module, mi); + if (rv != NGX_CONF_OK) { + goto failed; + } + } + + + /* create location trees */ + + for (s = 0; s < cmcf->servers.nelts; s++) { + + clcf = cscfp[s]->ctx->loc_conf[ngx_http_core_module.ctx_index]; + + if (ngx_http_init_locations(cf, cscfp[s], clcf) != NGX_OK) { + return NGX_CONF_ERROR; + } + + if (ngx_http_init_static_location_trees(cf, clcf) != NGX_OK) { + return NGX_CONF_ERROR; + } + } + + + if (ngx_http_init_phases(cf, cmcf) != NGX_OK) { + return NGX_CONF_ERROR; + } + + if (ngx_http_init_headers_in_hash(cf, cmcf) != NGX_OK) { + return NGX_CONF_ERROR; + } + + + for (m = 0; cf->cycle->modules[m]; m++) { + if (cf->cycle->modules[m]->type != NGX_HTTP_MODULE) { + continue; + } + + module = cf->cycle->modules[m]->ctx; + + if (module->postconfiguration) { + if (module->postconfiguration(cf) != NGX_OK) { + return NGX_CONF_ERROR; + } + } + } + + if (ngx_http_variables_init_vars(cf) != NGX_OK) { + return NGX_CONF_ERROR; + } + + /* + * http{}'s cf->ctx was needed while the configuration merging + * and in postconfiguration process + */ + + *cf = pcf; + + + if (ngx_http_init_phase_handlers(cf, cmcf) != NGX_OK) { + return NGX_CONF_ERROR; + } + + + /* optimize the lists of ports, addresses and server names */ + + if (ngx_http_optimize_servers(cf, cmcf, cmcf->ports) != NGX_OK) { + return NGX_CONF_ERROR; + } + + return NGX_CONF_OK; + +failed: + + *cf = pcf; + + return rv; +} + + +static ngx_int_t +ngx_http_init_phases(ngx_conf_t *cf, ngx_http_core_main_conf_t *cmcf) +{ + if (ngx_array_init(&cmcf->phases[NGX_HTTP_POST_READ_PHASE].handlers, + cf->pool, 1, sizeof(ngx_http_handler_pt)) + != NGX_OK) + { + return NGX_ERROR; + } + + if (ngx_array_init(&cmcf->phases[NGX_HTTP_SERVER_REWRITE_PHASE].handlers, + cf->pool, 1, sizeof(ngx_http_handler_pt)) + != NGX_OK) + { + return NGX_ERROR; + } + + if (ngx_array_init(&cmcf->phases[NGX_HTTP_REWRITE_PHASE].handlers, + cf->pool, 1, sizeof(ngx_http_handler_pt)) + != NGX_OK) + { + return NGX_ERROR; + } + + if (ngx_array_init(&cmcf->phases[NGX_HTTP_PREACCESS_PHASE].handlers, + cf->pool, 1, sizeof(ngx_http_handler_pt)) + != NGX_OK) + { + return NGX_ERROR; + } + + if (ngx_array_init(&cmcf->phases[NGX_HTTP_ACCESS_PHASE].handlers, + cf->pool, 2, sizeof(ngx_http_handler_pt)) + != NGX_OK) + { + return NGX_ERROR; + } + + if (ngx_array_init(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers, + cf->pool, 4, sizeof(ngx_http_handler_pt)) + != NGX_OK) + { + return NGX_ERROR; + } + + if (ngx_array_init(&cmcf->phases[NGX_HTTP_LOG_PHASE].handlers, + cf->pool, 1, sizeof(ngx_http_handler_pt)) + != NGX_OK) + { + return NGX_ERROR; + } + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_init_headers_in_hash(ngx_conf_t *cf, ngx_http_core_main_conf_t *cmcf) +{ + ngx_array_t headers_in; + ngx_hash_key_t *hk; + ngx_hash_init_t hash; + ngx_http_header_t *header; + + if (ngx_array_init(&headers_in, cf->temp_pool, 32, sizeof(ngx_hash_key_t)) + != NGX_OK) + { + return NGX_ERROR; + } + + for (header = ngx_http_headers_in; header->name.len; header++) { + hk = ngx_array_push(&headers_in); + if (hk == NULL) { + return NGX_ERROR; + } + + hk->key = header->name; + hk->key_hash = ngx_hash_key_lc(header->name.data, header->name.len); + hk->value = header; + } + + hash.hash = &cmcf->headers_in_hash; + hash.key = ngx_hash_key_lc; + hash.max_size = 512; + hash.bucket_size = ngx_align(64, ngx_cacheline_size); + hash.name = "headers_in_hash"; + hash.pool = cf->pool; + hash.temp_pool = NULL; + + if (ngx_hash_init(&hash, headers_in.elts, headers_in.nelts) != NGX_OK) { + return NGX_ERROR; + } + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_init_phase_handlers(ngx_conf_t *cf, ngx_http_core_main_conf_t *cmcf) +{ + ngx_int_t j; + ngx_uint_t i, n; + ngx_uint_t find_config_index, use_rewrite, use_access; + ngx_http_handler_pt *h; + ngx_http_phase_handler_t *ph; + ngx_http_phase_handler_pt checker; + + cmcf->phase_engine.server_rewrite_index = (ngx_uint_t) -1; + cmcf->phase_engine.location_rewrite_index = (ngx_uint_t) -1; + find_config_index = 0; + use_rewrite = cmcf->phases[NGX_HTTP_REWRITE_PHASE].handlers.nelts ? 1 : 0; + use_access = cmcf->phases[NGX_HTTP_ACCESS_PHASE].handlers.nelts ? 1 : 0; + + n = 1 /* find config phase */ + + use_rewrite /* post rewrite phase */ + + use_access /* post access phase */ + + cmcf->try_files; + + for (i = 0; i < NGX_HTTP_LOG_PHASE; i++) { + n += cmcf->phases[i].handlers.nelts; + } + + ph = ngx_pcalloc(cf->pool, + n * sizeof(ngx_http_phase_handler_t) + sizeof(void *)); + if (ph == NULL) { + return NGX_ERROR; + } + + cmcf->phase_engine.handlers = ph; + n = 0; + + for (i = 0; i < NGX_HTTP_LOG_PHASE; i++) { + h = cmcf->phases[i].handlers.elts; + + switch (i) { + + case NGX_HTTP_SERVER_REWRITE_PHASE: + if (cmcf->phase_engine.server_rewrite_index == (ngx_uint_t) -1) { + cmcf->phase_engine.server_rewrite_index = n; + } + checker = ngx_http_core_rewrite_phase; + + break; + + case NGX_HTTP_FIND_CONFIG_PHASE: + find_config_index = n; + + ph->checker = ngx_http_core_find_config_phase; + n++; + ph++; + + continue; + + case NGX_HTTP_REWRITE_PHASE: + if (cmcf->phase_engine.location_rewrite_index == (ngx_uint_t) -1) { + cmcf->phase_engine.location_rewrite_index = n; + } + checker = ngx_http_core_rewrite_phase; + + break; + + case NGX_HTTP_POST_REWRITE_PHASE: + if (use_rewrite) { + ph->checker = ngx_http_core_post_rewrite_phase; + ph->next = find_config_index; + n++; + ph++; + } + + continue; + + case NGX_HTTP_ACCESS_PHASE: + checker = ngx_http_core_access_phase; + n++; + break; + + case NGX_HTTP_POST_ACCESS_PHASE: + if (use_access) { + ph->checker = ngx_http_core_post_access_phase; + ph->next = n; + ph++; + } + + continue; + + case NGX_HTTP_TRY_FILES_PHASE: + if (cmcf->try_files) { + ph->checker = ngx_http_core_try_files_phase; + n++; + ph++; + } + + continue; + + case NGX_HTTP_CONTENT_PHASE: + checker = ngx_http_core_content_phase; + break; + + default: + checker = ngx_http_core_generic_phase; + } + + n += cmcf->phases[i].handlers.nelts; + + for (j = cmcf->phases[i].handlers.nelts - 1; j >=0; j--) { + ph->checker = checker; + ph->handler = h[j]; + ph->next = n; + ph++; + } + } + + return NGX_OK; +} + + +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) +{ + char *rv; + ngx_uint_t s; + ngx_http_conf_ctx_t *ctx, saved; + ngx_http_core_loc_conf_t *clcf; + ngx_http_core_srv_conf_t **cscfp; + + cscfp = cmcf->servers.elts; + ctx = (ngx_http_conf_ctx_t *) cf->ctx; + saved = *ctx; + rv = NGX_CONF_OK; + + for (s = 0; s < cmcf->servers.nelts; s++) { + + /* merge the server{}s' srv_conf's */ + + ctx->srv_conf = cscfp[s]->ctx->srv_conf; + + if (module->merge_srv_conf) { + rv = module->merge_srv_conf(cf, saved.srv_conf[ctx_index], + cscfp[s]->ctx->srv_conf[ctx_index]); + if (rv != NGX_CONF_OK) { + goto failed; + } + } + + if (module->merge_loc_conf) { + + /* merge the server{}'s loc_conf */ + + ctx->loc_conf = cscfp[s]->ctx->loc_conf; + + rv = module->merge_loc_conf(cf, saved.loc_conf[ctx_index], + cscfp[s]->ctx->loc_conf[ctx_index]); + if (rv != NGX_CONF_OK) { + goto failed; + } + + /* merge the locations{}' loc_conf's */ + + clcf = cscfp[s]->ctx->loc_conf[ngx_http_core_module.ctx_index]; + + rv = ngx_http_merge_locations(cf, clcf->locations, + cscfp[s]->ctx->loc_conf, + module, ctx_index); + if (rv != NGX_CONF_OK) { + goto failed; + } + } + } + +failed: + + *ctx = saved; + + return rv; +} + + +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) +{ + char *rv; + ngx_queue_t *q; + ngx_http_conf_ctx_t *ctx, saved; + ngx_http_core_loc_conf_t *clcf; + ngx_http_location_queue_t *lq; + + if (locations == NULL) { + return NGX_CONF_OK; + } + + ctx = (ngx_http_conf_ctx_t *) cf->ctx; + saved = *ctx; + + for (q = ngx_queue_head(locations); + q != ngx_queue_sentinel(locations); + q = ngx_queue_next(q)) + { + lq = (ngx_http_location_queue_t *) q; + + clcf = lq->exact ? lq->exact : lq->inclusive; + ctx->loc_conf = clcf->loc_conf; + + rv = module->merge_loc_conf(cf, loc_conf[ctx_index], + clcf->loc_conf[ctx_index]); + if (rv != NGX_CONF_OK) { + return rv; + } + + rv = ngx_http_merge_locations(cf, clcf->locations, clcf->loc_conf, + module, ctx_index); + if (rv != NGX_CONF_OK) { + return rv; + } + } + + *ctx = saved; + + return NGX_CONF_OK; +} + + +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) +{ + ngx_uint_t n; + ngx_queue_t *q, *locations, *named, tail; + ngx_http_core_loc_conf_t *clcf; + ngx_http_location_queue_t *lq; + ngx_http_core_loc_conf_t **clcfp; +#if (NGX_PCRE) + ngx_uint_t r; + ngx_queue_t *regex; +#endif + + locations = pclcf->locations; + + if (locations == NULL) { + return NGX_OK; + } + + ngx_queue_sort(locations, ngx_http_cmp_locations); + + named = NULL; + n = 0; +#if (NGX_PCRE) + regex = NULL; + r = 0; +#endif + + for (q = ngx_queue_head(locations); + q != ngx_queue_sentinel(locations); + q = ngx_queue_next(q)) + { + lq = (ngx_http_location_queue_t *) q; + + clcf = lq->exact ? lq->exact : lq->inclusive; + + if (ngx_http_init_locations(cf, NULL, clcf) != NGX_OK) { + return NGX_ERROR; + } + +#if (NGX_PCRE) + + if (clcf->regex) { + r++; + + if (regex == NULL) { + regex = q; + } + + continue; + } + +#endif + + if (clcf->named) { + n++; + + if (named == NULL) { + named = q; + } + + continue; + } + + if (clcf->noname) { + break; + } + } + + if (q != ngx_queue_sentinel(locations)) { + ngx_queue_split(locations, q, &tail); + } + + if (named) { + clcfp = ngx_palloc(cf->pool, + (n + 1) * sizeof(ngx_http_core_loc_conf_t *)); + if (clcfp == NULL) { + return NGX_ERROR; + } + + cscf->named_locations = clcfp; + + for (q = named; + q != ngx_queue_sentinel(locations); + q = ngx_queue_next(q)) + { + lq = (ngx_http_location_queue_t *) q; + + *(clcfp++) = lq->exact; + } + + *clcfp = NULL; + + ngx_queue_split(locations, named, &tail); + } + +#if (NGX_PCRE) + + if (regex) { + + clcfp = ngx_palloc(cf->pool, + (r + 1) * sizeof(ngx_http_core_loc_conf_t *)); + if (clcfp == NULL) { + return NGX_ERROR; + } + + pclcf->regex_locations = clcfp; + + for (q = regex; + q != ngx_queue_sentinel(locations); + q = ngx_queue_next(q)) + { + lq = (ngx_http_location_queue_t *) q; + + *(clcfp++) = lq->exact; + } + + *clcfp = NULL; + + ngx_queue_split(locations, regex, &tail); + } + +#endif + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_init_static_location_trees(ngx_conf_t *cf, + ngx_http_core_loc_conf_t *pclcf) +{ + ngx_queue_t *q, *locations; + ngx_http_core_loc_conf_t *clcf; + ngx_http_location_queue_t *lq; + + locations = pclcf->locations; + + if (locations == NULL) { + return NGX_OK; + } + + if (ngx_queue_empty(locations)) { + return NGX_OK; + } + + for (q = ngx_queue_head(locations); + q != ngx_queue_sentinel(locations); + q = ngx_queue_next(q)) + { + lq = (ngx_http_location_queue_t *) q; + + clcf = lq->exact ? lq->exact : lq->inclusive; + + if (ngx_http_init_static_location_trees(cf, clcf) != NGX_OK) { + return NGX_ERROR; + } + } + + if (ngx_http_join_exact_locations(cf, locations) != NGX_OK) { + return NGX_ERROR; + } + + ngx_http_create_locations_list(locations, ngx_queue_head(locations)); + + pclcf->static_locations = ngx_http_create_locations_tree(cf, locations, 0); + if (pclcf->static_locations == NULL) { + return NGX_ERROR; + } + + return NGX_OK; +} + + +ngx_int_t +ngx_http_add_location(ngx_conf_t *cf, ngx_queue_t **locations, + ngx_http_core_loc_conf_t *clcf) +{ + ngx_http_location_queue_t *lq; + + if (*locations == NULL) { + *locations = ngx_palloc(cf->temp_pool, + sizeof(ngx_http_location_queue_t)); + if (*locations == NULL) { + return NGX_ERROR; + } + + ngx_queue_init(*locations); + } + + lq = ngx_palloc(cf->temp_pool, sizeof(ngx_http_location_queue_t)); + if (lq == NULL) { + return NGX_ERROR; + } + + if (clcf->exact_match +#if (NGX_PCRE) + || clcf->regex +#endif + || clcf->named || clcf->noname) + { + lq->exact = clcf; + lq->inclusive = NULL; + + } else { + lq->exact = NULL; + lq->inclusive = clcf; + } + + lq->name = &clcf->name; + lq->file_name = cf->conf_file->file.name.data; + lq->line = cf->conf_file->line; + + ngx_queue_init(&lq->list); + + ngx_queue_insert_tail(*locations, &lq->queue); + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_cmp_locations(const ngx_queue_t *one, const ngx_queue_t *two) +{ + ngx_int_t rc; + ngx_http_core_loc_conf_t *first, *second; + ngx_http_location_queue_t *lq1, *lq2; + + lq1 = (ngx_http_location_queue_t *) one; + lq2 = (ngx_http_location_queue_t *) two; + + first = lq1->exact ? lq1->exact : lq1->inclusive; + second = lq2->exact ? lq2->exact : lq2->inclusive; + + if (first->noname && !second->noname) { + /* shift no named locations to the end */ + return 1; + } + + if (!first->noname && second->noname) { + /* shift no named locations to the end */ + return -1; + } + + if (first->noname || second->noname) { + /* do not sort no named locations */ + return 0; + } + + if (first->named && !second->named) { + /* shift named locations to the end */ + return 1; + } + + if (!first->named && second->named) { + /* shift named locations to the end */ + return -1; + } + + if (first->named && second->named) { + return ngx_strcmp(first->name.data, second->name.data); + } + +#if (NGX_PCRE) + + if (first->regex && !second->regex) { + /* shift the regex matches to the end */ + return 1; + } + + if (!first->regex && second->regex) { + /* shift the regex matches to the end */ + return -1; + } + + if (first->regex || second->regex) { + /* do not sort the regex matches */ + return 0; + } + +#endif + + rc = ngx_filename_cmp(first->name.data, second->name.data, + ngx_min(first->name.len, second->name.len) + 1); + + if (rc == 0 && !first->exact_match && second->exact_match) { + /* an exact match must be before the same inclusive one */ + return 1; + } + + return rc; +} + + +static ngx_int_t +ngx_http_join_exact_locations(ngx_conf_t *cf, ngx_queue_t *locations) +{ + ngx_queue_t *q, *x; + ngx_http_location_queue_t *lq, *lx; + + q = ngx_queue_head(locations); + + while (q != ngx_queue_last(locations)) { + + x = ngx_queue_next(q); + + lq = (ngx_http_location_queue_t *) q; + lx = (ngx_http_location_queue_t *) x; + + if (lq->name->len == lx->name->len + && ngx_filename_cmp(lq->name->data, lx->name->data, lx->name->len) + == 0) + { + if ((lq->exact && lx->exact) || (lq->inclusive && lx->inclusive)) { + ngx_log_error(NGX_LOG_EMERG, cf->log, 0, + "duplicate location \"%V\" in %s:%ui", + lx->name, lx->file_name, lx->line); + + return NGX_ERROR; + } + + lq->inclusive = lx->inclusive; + + ngx_queue_remove(x); + + continue; + } + + q = ngx_queue_next(q); + } + + return NGX_OK; +} + + +static void +ngx_http_create_locations_list(ngx_queue_t *locations, ngx_queue_t *q) +{ + u_char *name; + size_t len; + ngx_queue_t *x, tail; + ngx_http_location_queue_t *lq, *lx; + + if (q == ngx_queue_last(locations)) { + return; + } + + lq = (ngx_http_location_queue_t *) q; + + if (lq->inclusive == NULL) { + ngx_http_create_locations_list(locations, ngx_queue_next(q)); + return; + } + + len = lq->name->len; + name = lq->name->data; + + for (x = ngx_queue_next(q); + x != ngx_queue_sentinel(locations); + x = ngx_queue_next(x)) + { + lx = (ngx_http_location_queue_t *) x; + + if (len > lx->name->len + || ngx_filename_cmp(name, lx->name->data, len) != 0) + { + break; + } + } + + q = ngx_queue_next(q); + + if (q == x) { + ngx_http_create_locations_list(locations, x); + return; + } + + ngx_queue_split(locations, q, &tail); + ngx_queue_add(&lq->list, &tail); + + if (x == ngx_queue_sentinel(locations)) { + ngx_http_create_locations_list(&lq->list, ngx_queue_head(&lq->list)); + return; + } + + ngx_queue_split(&lq->list, x, &tail); + ngx_queue_add(locations, &tail); + + ngx_http_create_locations_list(&lq->list, ngx_queue_head(&lq->list)); + + ngx_http_create_locations_list(locations, x); +} + + +/* + * 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) +{ + size_t len; + ngx_queue_t *q, tail; + ngx_http_location_queue_t *lq; + ngx_http_location_tree_node_t *node; + + q = ngx_queue_middle(locations); + + lq = (ngx_http_location_queue_t *) q; + len = lq->name->len - prefix; + + node = ngx_palloc(cf->pool, + offsetof(ngx_http_location_tree_node_t, name) + len); + if (node == NULL) { + return NULL; + } + + node->left = NULL; + node->right = NULL; + node->tree = NULL; + node->exact = lq->exact; + node->inclusive = lq->inclusive; + + node->auto_redirect = (u_char) ((lq->exact && lq->exact->auto_redirect) + || (lq->inclusive && lq->inclusive->auto_redirect)); + + node->len = (u_char) len; + ngx_memcpy(node->name, &lq->name->data[prefix], len); + + ngx_queue_split(locations, q, &tail); + + if (ngx_queue_empty(locations)) { + /* + * ngx_queue_split() insures that if left part is empty, + * then right one is empty too + */ + goto inclusive; + } + + node->left = ngx_http_create_locations_tree(cf, locations, prefix); + if (node->left == NULL) { + return NULL; + } + + ngx_queue_remove(q); + + if (ngx_queue_empty(&tail)) { + goto inclusive; + } + + node->right = ngx_http_create_locations_tree(cf, &tail, prefix); + if (node->right == NULL) { + return NULL; + } + +inclusive: + + if (ngx_queue_empty(&lq->list)) { + return node; + } + + node->tree = ngx_http_create_locations_tree(cf, &lq->list, prefix + len); + if (node->tree == NULL) { + return NULL; + } + + return node; +} + + +ngx_int_t +ngx_http_add_listen(ngx_conf_t *cf, ngx_http_core_srv_conf_t *cscf, + ngx_http_listen_opt_t *lsopt) +{ + in_port_t p; + ngx_uint_t i; + struct sockaddr *sa; + ngx_http_conf_port_t *port; + ngx_http_core_main_conf_t *cmcf; + + cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); + + if (cmcf->ports == NULL) { + cmcf->ports = ngx_array_create(cf->temp_pool, 2, + sizeof(ngx_http_conf_port_t)); + if (cmcf->ports == NULL) { + return NGX_ERROR; + } + } + + sa = &lsopt->sockaddr.sockaddr; + p = ngx_inet_get_port(sa); + + port = cmcf->ports->elts; + for (i = 0; i < cmcf->ports->nelts; i++) { + + if (p != port[i].port || sa->sa_family != port[i].family) { + continue; + } + + /* a port is already in the port list */ + + return ngx_http_add_addresses(cf, cscf, &port[i], lsopt); + } + + /* add a port to the port list */ + + port = ngx_array_push(cmcf->ports); + if (port == NULL) { + return NGX_ERROR; + } + + port->family = sa->sa_family; + port->port = p; + port->addrs.elts = NULL; + + return ngx_http_add_address(cf, cscf, port, 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) +{ + ngx_uint_t i, default_server, proxy_protocol; + ngx_http_conf_addr_t *addr; +#if (NGX_HTTP_SSL) + ngx_uint_t ssl; +#endif +#if (NGX_HTTP_V2) + ngx_uint_t http2; +#endif + + /* + * we cannot compare whole sockaddr struct's as kernel + * may fill some fields in inherited sockaddr struct's + */ + + addr = port->addrs.elts; + + for (i = 0; i < port->addrs.nelts; i++) { + + if (ngx_cmp_sockaddr(&lsopt->sockaddr.sockaddr, lsopt->socklen, + &addr[i].opt.sockaddr.sockaddr, + addr[i].opt.socklen, 0) + != NGX_OK) + { + continue; + } + + /* the address is already in the address list */ + + if (ngx_http_add_server(cf, cscf, &addr[i]) != NGX_OK) { + return NGX_ERROR; + } + + /* preserve default_server bit during listen options overwriting */ + default_server = addr[i].opt.default_server; + + proxy_protocol = lsopt->proxy_protocol || addr[i].opt.proxy_protocol; + +#if (NGX_HTTP_SSL) + ssl = lsopt->ssl || addr[i].opt.ssl; +#endif +#if (NGX_HTTP_V2) + http2 = lsopt->http2 || addr[i].opt.http2; +#endif + + if (lsopt->set) { + + if (addr[i].opt.set) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "duplicate listen options for %s", addr[i].opt.addr); + return NGX_ERROR; + } + + addr[i].opt = *lsopt; + } + + /* check the duplicate "default" server for this address:port */ + + if (lsopt->default_server) { + + if (default_server) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "a duplicate default server for %s", addr[i].opt.addr); + return NGX_ERROR; + } + + default_server = 1; + addr[i].default_server = cscf; + } + + addr[i].opt.default_server = default_server; + addr[i].opt.proxy_protocol = proxy_protocol; +#if (NGX_HTTP_SSL) + addr[i].opt.ssl = ssl; +#endif +#if (NGX_HTTP_V2) + addr[i].opt.http2 = http2; +#endif + + return NGX_OK; + } + + /* add the address to the addresses list that bound to this port */ + + return ngx_http_add_address(cf, cscf, port, 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) +{ + ngx_http_conf_addr_t *addr; + + if (port->addrs.elts == NULL) { + if (ngx_array_init(&port->addrs, cf->temp_pool, 4, + sizeof(ngx_http_conf_addr_t)) + != NGX_OK) + { + return NGX_ERROR; + } + } + +#if (NGX_HTTP_V2 && NGX_HTTP_SSL \ + && !defined TLSEXT_TYPE_application_layer_protocol_negotiation \ + && !defined TLSEXT_TYPE_next_proto_neg) + + if (lsopt->http2 && lsopt->ssl) { + ngx_conf_log_error(NGX_LOG_WARN, cf, 0, + "nginx was built with OpenSSL that lacks ALPN " + "and NPN support, HTTP/2 is not enabled for %s", + lsopt->addr); + } + +#endif + + addr = ngx_array_push(&port->addrs); + if (addr == NULL) { + return NGX_ERROR; + } + + addr->opt = *lsopt; + addr->hash.buckets = NULL; + addr->hash.size = 0; + addr->wc_head = NULL; + addr->wc_tail = NULL; +#if (NGX_PCRE) + addr->nregex = 0; + addr->regex = NULL; +#endif + addr->default_server = cscf; + addr->servers.elts = NULL; + + return ngx_http_add_server(cf, cscf, addr); +} + + +/* 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) +{ + ngx_uint_t i; + ngx_http_core_srv_conf_t **server; + + if (addr->servers.elts == NULL) { + if (ngx_array_init(&addr->servers, cf->temp_pool, 4, + sizeof(ngx_http_core_srv_conf_t *)) + != NGX_OK) + { + return NGX_ERROR; + } + + } else { + server = addr->servers.elts; + for (i = 0; i < addr->servers.nelts; i++) { + if (server[i] == cscf) { + ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, + "a duplicate listen %s", addr->opt.addr); + return NGX_ERROR; + } + } + } + + server = ngx_array_push(&addr->servers); + if (server == NULL) { + return NGX_ERROR; + } + + *server = cscf; + + return NGX_OK; +} + + +static ngx_int_t +ngx_http_optimize_servers(ngx_conf_t *cf, ngx_http_core_main_conf_t *cmcf, + ngx_array_t *ports) +{ + ngx_uint_t p, a; + ngx_http_conf_port_t *port; + ngx_http_conf_addr_t *addr; + + if (ports == NULL) { + return NGX_OK; + } + + port = ports->elts; + for (p = 0; p < ports->nelts; p++) { + + ngx_sort(port[p].addrs.elts, (size_t) port[p].addrs.nelts, + sizeof(ngx_http_conf_addr_t), ngx_http_cmp_conf_addrs); + + /* + * check whether all name-based servers have the same + * configuration as a default server for given address:port + */ + + addr = port[p].addrs.elts; + for (a = 0; a < port[p].addrs.nelts; a++) { + + if (addr[a].servers.nelts > 1 +#if (NGX_PCRE) + || addr[a].default_server->captures +#endif + ) + { + if (ngx_http_server_names(cf, cmcf, &addr[a]) != NGX_OK) { + return NGX_ERROR; + } + } + } + + if (ngx_http_init_listening(cf, &port[p]) != NGX_OK) { + return NGX_ERROR; + } + } + + return NGX_OK; +} + + +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) +{ + ngx_int_t rc; + ngx_uint_t n, s; + ngx_hash_init_t hash; + ngx_hash_keys_arrays_t ha; + ngx_http_server_name_t *name; + ngx_http_core_srv_conf_t **cscfp; +#if (NGX_PCRE) + ngx_uint_t regex, i; + + regex = 0; +#endif + + ngx_memzero(&ha, sizeof(ngx_hash_keys_arrays_t)); + + ha.temp_pool = ngx_create_pool(NGX_DEFAULT_POOL_SIZE, cf->log); + if (ha.temp_pool == NULL) { + return NGX_ERROR; + } + + ha.pool = cf->pool; + + if (ngx_hash_keys_array_init(&ha, NGX_HASH_LARGE) != NGX_OK) { + goto failed; + } + + cscfp = addr->servers.elts; + + for (s = 0; s < addr->servers.nelts; s++) { + + name = cscfp[s]->server_names.elts; + + for (n = 0; n < cscfp[s]->server_names.nelts; n++) { + +#if (NGX_PCRE) + if (name[n].regex) { + regex++; + continue; + } +#endif + + rc = ngx_hash_add_key(&ha, &name[n].name, name[n].server, + NGX_HASH_WILDCARD_KEY); + + if (rc == NGX_ERROR) { + return NGX_ERROR; + } + + if (rc == NGX_DECLINED) { + ngx_log_error(NGX_LOG_EMERG, cf->log, 0, + "invalid server name or wildcard \"%V\" on %s", + &name[n].name, addr->opt.addr); + return NGX_ERROR; + } + + if (rc == NGX_BUSY) { + ngx_log_error(NGX_LOG_WARN, cf->log, 0, + "conflicting server name \"%V\" on %s, ignored", + &name[n].name, addr->opt.addr); + } + } + } + + hash.key = ngx_hash_key_lc; + hash.max_size = cmcf->server_names_hash_max_size; + hash.bucket_size = cmcf->server_names_hash_bucket_size; + hash.name = "server_names_hash"; + hash.pool = cf->pool; + + if (ha.keys.nelts) { + hash.hash = &addr->hash; + hash.temp_pool = NULL; + + if (ngx_hash_init(&hash, ha.keys.elts, ha.keys.nelts) != NGX_OK) { + goto failed; + } + } + + if (ha.dns_wc_head.nelts) { + + ngx_qsort(ha.dns_wc_head.elts, (size_t) ha.dns_wc_head.nelts, + sizeof(ngx_hash_key_t), ngx_http_cmp_dns_wildcards); + + hash.hash = NULL; + hash.temp_pool = ha.temp_pool; + + if (ngx_hash_wildcard_init(&hash, ha.dns_wc_head.elts, + ha.dns_wc_head.nelts) + != NGX_OK) + { + goto failed; + } + + addr->wc_head = (ngx_hash_wildcard_t *) hash.hash; + } + + if (ha.dns_wc_tail.nelts) { + + ngx_qsort(ha.dns_wc_tail.elts, (size_t) ha.dns_wc_tail.nelts, + sizeof(ngx_hash_key_t), ngx_http_cmp_dns_wildcards); + + hash.hash = NULL; + hash.temp_pool = ha.temp_pool; + + if (ngx_hash_wildcard_init(&hash, ha.dns_wc_tail.elts, + ha.dns_wc_tail.nelts) + != NGX_OK) + { + goto failed; + } + + addr->wc_tail = (ngx_hash_wildcard_t *) hash.hash; + } + + ngx_destroy_pool(ha.temp_pool); + +#if (NGX_PCRE) + + if (regex == 0) { + return NGX_OK; + } + + addr->nregex = regex; + addr->regex = ngx_palloc(cf->pool, regex * sizeof(ngx_http_server_name_t)); + if (addr->regex == NULL) { + return NGX_ERROR; + } + + i = 0; + + for (s = 0; s < addr->servers.nelts; s++) { + + name = cscfp[s]->server_names.elts; + + for (n = 0; n < cscfp[s]->server_names.nelts; n++) { + if (name[n].regex) { + addr->regex[i++] = name[n]; + } + } + } + +#endif + + return NGX_OK; + +failed: + + ngx_destroy_pool(ha.temp_pool); + + return NGX_ERROR; +} + + +static ngx_int_t +ngx_http_cmp_conf_addrs(const void *one, const void *two) +{ + ngx_http_conf_addr_t *first, *second; + + first = (ngx_http_conf_addr_t *) one; + second = (ngx_http_conf_addr_t *) two; + + if (first->opt.wildcard) { + /* a wildcard address must be the last resort, shift it to the end */ + return 1; + } + + if (second->opt.wildcard) { + /* a wildcard address must be the last resort, shift it to the end */ + return -1; + } + + if (first->opt.bind && !second->opt.bind) { + /* shift explicit bind()ed addresses to the start */ + return -1; + } + + if (!first->opt.bind && second->opt.bind) { + /* shift explicit bind()ed addresses to the start */ + return 1; + } + + /* do not sort by default */ + + return 0; +} + + +static int ngx_libc_cdecl +ngx_http_cmp_dns_wildcards(const void *one, const void *two) +{ + ngx_hash_key_t *first, *second; + + first = (ngx_hash_key_t *) one; + second = (ngx_hash_key_t *) two; + + return ngx_dns_strcmp(first->key.data, second->key.data); +} + + +static ngx_int_t +ngx_http_init_listening(ngx_conf_t *cf, ngx_http_conf_port_t *port) +{ + ngx_uint_t i, last, bind_wildcard; + ngx_listening_t *ls; + ngx_http_port_t *hport; + ngx_http_conf_addr_t *addr; + + addr = port->addrs.elts; + last = port->addrs.nelts; + + /* + * If there is a binding to an "*:port" then we need to bind() to + * the "*:port" only and ignore other implicit bindings. The bindings + * have been already sorted: explicit bindings are on the start, then + * implicit bindings go, and wildcard binding is in the end. + */ + + if (addr[last - 1].opt.wildcard) { + addr[last - 1].opt.bind = 1; + bind_wildcard = 1; + + } else { + bind_wildcard = 0; + } + + i = 0; + + while (i < last) { + + if (bind_wildcard && !addr[i].opt.bind) { + i++; + continue; + } + + ls = ngx_http_add_listening(cf, &addr[i]); + if (ls == NULL) { + return NGX_ERROR; + } + + hport = ngx_pcalloc(cf->pool, sizeof(ngx_http_port_t)); + if (hport == NULL) { + return NGX_ERROR; + } + + ls->servers = hport; + + hport->naddrs = i + 1; + + switch (ls->sockaddr->sa_family) { + +#if (NGX_HAVE_INET6) + case AF_INET6: + if (ngx_http_add_addrs6(cf, hport, addr) != NGX_OK) { + return NGX_ERROR; + } + break; +#endif + default: /* AF_INET */ + if (ngx_http_add_addrs(cf, hport, addr) != NGX_OK) { + return NGX_ERROR; + } + break; + } + + if (ngx_clone_listening(cf, ls) != NGX_OK) { + return NGX_ERROR; + } + + addr++; + last--; + } + + return NGX_OK; +} + + +static ngx_listening_t * +ngx_http_add_listening(ngx_conf_t *cf, ngx_http_conf_addr_t *addr) +{ + ngx_listening_t *ls; + ngx_http_core_loc_conf_t *clcf; + ngx_http_core_srv_conf_t *cscf; + + ls = ngx_create_listening(cf, &addr->opt.sockaddr.sockaddr, + addr->opt.socklen); + if (ls == NULL) { + return NULL; + } + + ls->addr_ntop = 1; + + ls->handler = ngx_http_init_connection; + + cscf = addr->default_server; + ls->pool_size = cscf->connection_pool_size; + ls->post_accept_timeout = cscf->client_header_timeout; + + clcf = cscf->ctx->loc_conf[ngx_http_core_module.ctx_index]; + + ls->logp = clcf->error_log; + ls->log.data = &ls->addr_text; + ls->log.handler = ngx_accept_log_error; + +#if (NGX_WIN32) + { + ngx_iocp_conf_t *iocpcf = NULL; + + if (ngx_get_conf(cf->cycle->conf_ctx, ngx_events_module)) { + iocpcf = ngx_event_get_conf(cf->cycle->conf_ctx, ngx_iocp_module); + } + if (iocpcf && iocpcf->acceptex_read) { + ls->post_accept_buffer_size = cscf->client_header_buffer_size; + } + } +#endif + + ls->backlog = addr->opt.backlog; + ls->rcvbuf = addr->opt.rcvbuf; + ls->sndbuf = addr->opt.sndbuf; + + ls->keepalive = addr->opt.so_keepalive; +#if (NGX_HAVE_KEEPALIVE_TUNABLE) + ls->keepidle = addr->opt.tcp_keepidle; + ls->keepintvl = addr->opt.tcp_keepintvl; + ls->keepcnt = addr->opt.tcp_keepcnt; +#endif + +#if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER) + ls->accept_filter = addr->opt.accept_filter; +#endif + +#if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT) + ls->deferred_accept = addr->opt.deferred_accept; +#endif + +#if (NGX_HAVE_INET6) + ls->ipv6only = addr->opt.ipv6only; +#endif + +#if (NGX_HAVE_SETFIB) + ls->setfib = addr->opt.setfib; +#endif + +#if (NGX_HAVE_TCP_FASTOPEN) + ls->fastopen = addr->opt.fastopen; +#endif + +#if (NGX_HAVE_REUSEPORT) + ls->reuseport = addr->opt.reuseport; +#endif + + return ls; +} + + +static ngx_int_t +ngx_http_add_addrs(ngx_conf_t *cf, ngx_http_port_t *hport, + ngx_http_conf_addr_t *addr) +{ + ngx_uint_t i; + ngx_http_in_addr_t *addrs; + struct sockaddr_in *sin; + ngx_http_virtual_names_t *vn; + + hport->addrs = ngx_pcalloc(cf->pool, + hport->naddrs * sizeof(ngx_http_in_addr_t)); + if (hport->addrs == NULL) { + return NGX_ERROR; + } + + addrs = hport->addrs; + + for (i = 0; i < hport->naddrs; i++) { + + sin = &addr[i].opt.sockaddr.sockaddr_in; + addrs[i].addr = sin->sin_addr.s_addr; + addrs[i].conf.default_server = addr[i].default_server; +#if (NGX_HTTP_SSL) + addrs[i].conf.ssl = addr[i].opt.ssl; +#endif +#if (NGX_HTTP_V2) + addrs[i].conf.http2 = addr[i].opt.http2; +#endif + addrs[i].conf.proxy_protocol = addr[i].opt.proxy_protocol; + + if (addr[i].hash.buckets == NULL + && (addr[i].wc_head == NULL + || addr[i].wc_head->hash.buckets == NULL) + && (addr[i].wc_tail == NULL + || addr[i].wc_tail->hash.buckets == NULL) +#if (NGX_PCRE) + && addr[i].nregex == 0 +#endif + ) + { + continue; + } + + vn = ngx_palloc(cf->pool, sizeof(ngx_http_virtual_names_t)); + if (vn == NULL) { + return NGX_ERROR; + } + + addrs[i].conf.virtual_names = vn; + + vn->names.hash = addr[i].hash; + vn->names.wc_head = addr[i].wc_head; + vn->names.wc_tail = addr[i].wc_tail; +#if (NGX_PCRE) + vn->nregex = addr[i].nregex; + vn->regex = addr[i].regex; +#endif + } + + return NGX_OK; +} + + +#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) +{ + ngx_uint_t i; + ngx_http_in6_addr_t *addrs6; + struct sockaddr_in6 *sin6; + ngx_http_virtual_names_t *vn; + + hport->addrs = ngx_pcalloc(cf->pool, + hport->naddrs * sizeof(ngx_http_in6_addr_t)); + if (hport->addrs == NULL) { + return NGX_ERROR; + } + + addrs6 = hport->addrs; + + for (i = 0; i < hport->naddrs; i++) { + + sin6 = &addr[i].opt.sockaddr.sockaddr_in6; + addrs6[i].addr6 = sin6->sin6_addr; + addrs6[i].conf.default_server = addr[i].default_server; +#if (NGX_HTTP_SSL) + addrs6[i].conf.ssl = addr[i].opt.ssl; +#endif +#if (NGX_HTTP_V2) + addrs6[i].conf.http2 = addr[i].opt.http2; +#endif + addrs6[i].conf.proxy_protocol = addr[i].opt.proxy_protocol; + + if (addr[i].hash.buckets == NULL + && (addr[i].wc_head == NULL + || addr[i].wc_head->hash.buckets == NULL) + && (addr[i].wc_tail == NULL + || addr[i].wc_tail->hash.buckets == NULL) +#if (NGX_PCRE) + && addr[i].nregex == 0 +#endif + ) + { + continue; + } + + vn = ngx_palloc(cf->pool, sizeof(ngx_http_virtual_names_t)); + if (vn == NULL) { + return NGX_ERROR; + } + + addrs6[i].conf.virtual_names = vn; + + vn->names.hash = addr[i].hash; + vn->names.wc_head = addr[i].wc_head; + vn->names.wc_tail = addr[i].wc_tail; +#if (NGX_PCRE) + vn->nregex = addr[i].nregex; + vn->regex = addr[i].regex; +#endif + } + + return NGX_OK; +} + +#endif + + +char * +ngx_http_types_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) +{ + char *p = conf; + + ngx_array_t **types; + ngx_str_t *value, *default_type; + ngx_uint_t i, n, hash; + ngx_hash_key_t *type; + + types = (ngx_array_t **) (p + cmd->offset); + + if (*types == (void *) -1) { + return NGX_CONF_OK; + } + + default_type = cmd->post; + + if (*types == NULL) { + *types = ngx_array_create(cf->temp_pool, 1, sizeof(ngx_hash_key_t)); + if (*types == NULL) { + return NGX_CONF_ERROR; + } + + if (default_type) { + type = ngx_array_push(*types); + if (type == NULL) { + return NGX_CONF_ERROR; + } + + type->key = *default_type; + type->key_hash = ngx_hash_key(default_type->data, + default_type->len); + type->value = (void *) 4; + } + } + + value = cf->args->elts; + + for (i = 1; i < cf->args->nelts; i++) { + + if (value[i].len == 1 && value[i].data[0] == '*') { + *types = (void *) -1; + return NGX_CONF_OK; + } + + hash = ngx_hash_strlow(value[i].data, value[i].data, value[i].len); + value[i].data[value[i].len] = '\0'; + + type = (*types)->elts; + for (n = 0; n < (*types)->nelts; n++) { + + if (ngx_strcmp(value[i].data, type[n].key.data) == 0) { + ngx_conf_log_error(NGX_LOG_WARN, cf, 0, + "duplicate MIME type \"%V\"", &value[i]); + goto next; + } + } + + type = ngx_array_push(*types); + if (type == NULL) { + return NGX_CONF_ERROR; + } + + type->key = value[i]; + type->key_hash = hash; + type->value = (void *) 4; + + next: + + continue; + } + + return NGX_CONF_OK; +} + + +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_hash_init_t hash; + + if (*keys) { + + if (*keys == (void *) -1) { + return NGX_CONF_OK; + } + + hash.hash = types_hash; + hash.key = NULL; + hash.max_size = 2048; + hash.bucket_size = 64; + hash.name = "test_types_hash"; + hash.pool = cf->pool; + hash.temp_pool = NULL; + + if (ngx_hash_init(&hash, (*keys)->elts, (*keys)->nelts) != NGX_OK) { + return NGX_CONF_ERROR; + } + + return NGX_CONF_OK; + } + + if (prev_types_hash->buckets == NULL) { + + if (*prev_keys == NULL) { + + if (ngx_http_set_default_types(cf, prev_keys, default_types) + != NGX_OK) + { + return NGX_CONF_ERROR; + } + + } else if (*prev_keys == (void *) -1) { + *keys = *prev_keys; + return NGX_CONF_OK; + } + + hash.hash = prev_types_hash; + hash.key = NULL; + hash.max_size = 2048; + hash.bucket_size = 64; + hash.name = "test_types_hash"; + hash.pool = cf->pool; + hash.temp_pool = NULL; + + if (ngx_hash_init(&hash, (*prev_keys)->elts, (*prev_keys)->nelts) + != NGX_OK) + { + return NGX_CONF_ERROR; + } + } + + *types_hash = *prev_types_hash; + + return NGX_CONF_OK; + +} + + +ngx_int_t +ngx_http_set_default_types(ngx_conf_t *cf, ngx_array_t **types, + ngx_str_t *default_type) +{ + ngx_hash_key_t *type; + + *types = ngx_array_create(cf->temp_pool, 1, sizeof(ngx_hash_key_t)); + if (*types == NULL) { + return NGX_ERROR; + } + + while (default_type->len) { + + type = ngx_array_push(*types); + if (type == NULL) { + return NGX_ERROR; + } + + type->key = *default_type; + type->key_hash = ngx_hash_key(default_type->data, + default_type->len); + type->value = (void *) 4; + + default_type++; + } + + return NGX_OK; +} |