#include #include #include #include static char *ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_merge_locations(ngx_conf_t *cf, ngx_array_t *locations, void **loc_conf, ngx_http_module_t *module, ngx_uint_t ctx_index); int ngx_http_max_module; ngx_uint_t ngx_http_total_requests; uint64_t ngx_http_total_sent; ngx_int_t (*ngx_http_top_header_filter) (ngx_http_request_t *r); ngx_int_t (*ngx_http_top_body_filter) (ngx_http_request_t *r, ngx_chain_t *ch); 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, &ngx_http_module_ctx, /* module context */ ngx_http_commands, /* module directives */ NGX_CORE_MODULE, /* module type */ NULL, /* init module */ NULL /* init child */ }; static char *ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_uint_t mi, m, s, l, p, a, n; ngx_uint_t port_found, addr_found, virtual_names; char *rv; struct sockaddr_in *addr_in; ngx_conf_t pcf; ngx_array_t in_ports; ngx_listening_t *ls; ngx_http_listen_t *lscf; ngx_http_module_t *module; ngx_http_handler_pt *h; ngx_http_conf_ctx_t *ctx; ngx_http_in_port_t *in_port, *inport; ngx_http_in_addr_t *in_addr, *inaddr; ngx_http_server_name_t *s_name, *name; ngx_http_core_srv_conf_t **cscfp, *cscf; ngx_http_core_loc_conf_t *clcf; ngx_http_core_main_conf_t *cmcf; #if (WIN32) ngx_iocp_conf_t *iocpcf; #endif /* the main http context */ ngx_test_null(ctx, ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)), 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 = 0; for (m = 0; ngx_modules[m]; m++) { if (ngx_modules[m]->type != NGX_HTTP_MODULE) { continue; } ngx_modules[m]->ctx_index = ngx_http_max_module++; } /* the main http main_conf, it's the same in the all http contexts */ ngx_test_null(ctx->main_conf, ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module), NGX_CONF_ERROR); /* the http null srv_conf, it's used to merge the server{}s' srv_conf's */ ngx_test_null(ctx->srv_conf, ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module), NGX_CONF_ERROR); /* the http null loc_conf, it's used to merge the server{}s' loc_conf's */ ngx_test_null(ctx->loc_conf, ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module), NGX_CONF_ERROR); /* create the main_conf, srv_conf and loc_conf in all http modules */ for (m = 0; ngx_modules[m]; m++) { if (ngx_modules[m]->type != NGX_HTTP_MODULE) { continue; } module = ngx_modules[m]->ctx; mi = ngx_modules[m]->ctx_index; if (module->pre_conf) { if (module->pre_conf(cf) != NGX_OK) { return NGX_CONF_ERROR; } } if (module->create_main_conf) { ngx_test_null(ctx->main_conf[mi], module->create_main_conf(cf), NGX_CONF_ERROR); } if (module->create_srv_conf) { ngx_test_null(ctx->srv_conf[mi], module->create_srv_conf(cf), NGX_CONF_ERROR); } if (module->create_loc_conf) { ngx_test_null(ctx->loc_conf[mi], module->create_loc_conf(cf), NGX_CONF_ERROR); } } /* parse inside the http{} block */ pcf = *cf; cf->ctx = ctx; cf->module_type = NGX_HTTP_MODULE; cf->cmd_type = NGX_HTTP_MAIN_CONF; rv = ngx_conf_parse(cf, NULL); if (rv != NGX_CONF_OK) { *cf = pcf; return rv; } /* * 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; ngx_modules[m]; m++) { if (ngx_modules[m]->type != NGX_HTTP_MODULE) { continue; } module = ngx_modules[m]->ctx; mi = ngx_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) { *cf = pcf; return rv; } } for (s = 0; s < cmcf->servers.nelts; s++) { /* merge the server{}s' srv_conf's */ if (module->merge_srv_conf) { rv = module->merge_srv_conf(cf, ctx->srv_conf[mi], cscfp[s]->ctx->srv_conf[mi]); if (rv != NGX_CONF_OK) { *cf = pcf; return rv; } } if (module->merge_loc_conf) { /* merge the server{}'s loc_conf */ rv = module->merge_loc_conf(cf, ctx->loc_conf[mi], cscfp[s]->ctx->loc_conf[mi]); if (rv != NGX_CONF_OK) { *cf = pcf; return rv; } /* merge the locations{}' loc_conf's */ rv = ngx_http_merge_locations(cf, &cscfp[s]->locations, cscfp[s]->ctx->loc_conf, module, mi); if (rv != NGX_CONF_OK) { *cf = pcf; return rv; } #if 0 clcfp = (ngx_http_core_loc_conf_t **) cscfp[s]->locations.elts; for (l = 0; l < cscfp[s]->locations.nelts; l++) { rv = module->merge_loc_conf(cf, cscfp[s]->ctx->loc_conf[mi], clcfp[l]->loc_conf[mi]); if (rv != NGX_CONF_OK) { *cf = pcf; return rv; } } #endif } } } /* we needed "http"'s cf->ctx while merging configuration */ *cf = pcf; /* init lists of the handlers */ ngx_init_array(cmcf->phases[NGX_HTTP_REWRITE_PHASE].handlers, cf->cycle->pool, 10, sizeof(ngx_http_handler_pt), NGX_CONF_ERROR); cmcf->phases[NGX_HTTP_REWRITE_PHASE].type = NGX_OK; /* the special find config phase for single handler */ ngx_init_array(cmcf->phases[NGX_HTTP_FIND_CONFIG_PHASE].handlers, cf->cycle->pool, 1, sizeof(ngx_http_handler_pt), NGX_CONF_ERROR); cmcf->phases[NGX_HTTP_FIND_CONFIG_PHASE].type = NGX_OK; ngx_test_null(h, ngx_push_array( &cmcf->phases[NGX_HTTP_FIND_CONFIG_PHASE].handlers), NGX_CONF_ERROR); *h = ngx_http_find_location_config; ngx_init_array(cmcf->phases[NGX_HTTP_ACCESS_PHASE].handlers, cf->cycle->pool, 10, sizeof(ngx_http_handler_pt), NGX_CONF_ERROR); cmcf->phases[NGX_HTTP_ACCESS_PHASE].type = NGX_DECLINED; ngx_init_array(cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers, cf->cycle->pool, 10, sizeof(ngx_http_handler_pt), NGX_CONF_ERROR); cmcf->phases[NGX_HTTP_CONTENT_PHASE].type = NGX_OK; /* * create the lists of the ports, the addresses and the server names * to allow quickly find the server core module configuration at run-time */ ngx_init_array(in_ports, cf->pool, 10, sizeof(ngx_http_in_port_t), NGX_CONF_ERROR); /* "server" directives */ cscfp = cmcf->servers.elts; for (s = 0; s < cmcf->servers.nelts; s++) { /* "listen" directives */ lscf = cscfp[s]->listen.elts; for (l = 0; l < cscfp[s]->listen.nelts; l++) { port_found = 0; /* AF_INET only */ in_port = in_ports.elts; for (p = 0; p < in_ports.nelts; p++) { if (lscf[l].port == in_port[p].port) { /* the port is already in the port list */ port_found = 1; addr_found = 0; in_addr = in_port[p].addrs.elts; for (a = 0; a < in_port[p].addrs.nelts; a++) { if (lscf[l].addr == in_addr[a].addr) { /* the address is already bound to this port */ /* "server_name" directives */ s_name = cscfp[s]->server_names.elts; for (n = 0; n < cscfp[s]->server_names.nelts; n++) { /* * add the server name and server core module * configuration to the address:port */ /* TODO: duplicate names can be checked here */ ngx_test_null(name, ngx_push_array(&in_addr[a].names), NGX_CONF_ERROR); name->name = s_name[n].name; name->core_srv_conf = s_name[n].core_srv_conf; } /* * check duplicate "default" server that * serves this address:port */ if (lscf[l].default_server) { if (in_addr[a].default_server) { ngx_log_error(NGX_LOG_ERR, cf->log, 0, "duplicate default server in %s:%d", lscf[l].file_name.data, lscf[l].line); return NGX_CONF_ERROR; } in_addr[a].core_srv_conf = cscfp[s]; in_addr[a].default_server = 1; } addr_found = 1; break; } else if (in_addr[a].addr == INADDR_ANY) { /* * "*:port" must be the last resort so move it * to the end of the address list and add * the new address at its place */ ngx_test_null(inaddr, ngx_push_array(&in_port[p].addrs), NGX_CONF_ERROR); ngx_memcpy(inaddr, &in_addr[a], sizeof(ngx_http_in_addr_t)); in_addr[a].addr = lscf[l].addr; in_addr[a].default_server = lscf[l].default_server; in_addr[a].core_srv_conf = cscfp[s]; /* * create the empty list of the server names that * can be served on this address:port */ ngx_init_array(inaddr->names, cf->pool, 10, sizeof(ngx_http_server_name_t), NGX_CONF_ERROR); addr_found = 1; break; } } if (!addr_found) { /* * add the address to the addresses list that * bound to this port */ ngx_test_null(inaddr, ngx_push_array(&in_port[p].addrs), NGX_CONF_ERROR); inaddr->addr = lscf[l].addr; inaddr->default_server = lscf[l].default_server; inaddr->core_srv_conf = cscfp[s]; /* * create the empty list of the server names that * can be served on this address:port */ ngx_init_array(inaddr->names, cf->pool, 10, sizeof(ngx_http_server_name_t), NGX_CONF_ERROR); } } } if (!port_found) { /* add the port to the in_port list */ ngx_test_null(in_port, ngx_push_array(&in_ports), NGX_CONF_ERROR); in_port->port = lscf[l].port; ngx_test_null(in_port->port_name.data, ngx_palloc(cf->pool, 7), NGX_CONF_ERROR); in_port->port_name.len = ngx_snprintf((char *) in_port->port_name.data, 7, ":%d", in_port->port); /* create list of the addresses that bound to this port ... */ ngx_init_array(in_port->addrs, cf->pool, 10, sizeof(ngx_http_in_addr_t), NGX_CONF_ERROR); ngx_test_null(inaddr, ngx_push_array(&in_port->addrs), NGX_CONF_ERROR); /* ... and add the address to this list */ inaddr->addr = lscf[l].addr; inaddr->default_server = lscf[l].default_server; inaddr->core_srv_conf = cscfp[s]; /* * create the empty list of the server names that * can be served on this address:port */ ngx_init_array(inaddr->names, cf->pool, 10, sizeof(ngx_http_server_name_t), NGX_CONF_ERROR); } } } /* optimize the lists of the ports, the addresses and the server names */ /* AF_INET only */ in_port = in_ports.elts; for (p = 0; p < in_ports.nelts; p++) { /* check whether the all server names point to the same server */ in_addr = in_port[p].addrs.elts; for (a = 0; a < in_port[p].addrs.nelts; a++) { virtual_names = 0; name = in_addr[a].names.elts; for (n = 0; n < in_addr[a].names.nelts; n++) { if (in_addr[a].core_srv_conf != name[n].core_srv_conf) { virtual_names = 1; break; } } /* * if the all server names point to the same server * then we do not need to check them at run-time */ if (!virtual_names) { in_addr[a].names.nelts = 0; } } /* * if there's the binding to "*:port" then we need to bind() * to "*:port" only and ignore the other bindings */ if (in_addr[a - 1].addr == INADDR_ANY) { a--; } else { a = 0; } in_addr = in_port[p].addrs.elts; while (a < in_port[p].addrs.nelts) { if (!(ls = ngx_push_array(&cf->cycle->listening))) { return NGX_CONF_ERROR; } ngx_memzero(ls, sizeof(ngx_listening_t)); addr_in = ngx_pcalloc(cf->pool, sizeof(struct sockaddr_in)); if (addr_in == NULL) { return NGX_CONF_ERROR; } #if (HAVE_SIN_LEN) addr_in->sin_len = sizeof(struct sockaddr_in); #endif addr_in->sin_family = AF_INET; addr_in->sin_addr.s_addr = in_addr[a].addr; addr_in->sin_port = htons((u_short) in_port[p].port); ls->addr_text.data = ngx_palloc(cf->pool, INET_ADDRSTRLEN + 6); if (ls->addr_text.data == NULL) { return NGX_CONF_ERROR; } ls->addr_text.len = ngx_inet_ntop(AF_INET, &in_addr[a].addr, ls->addr_text.data, INET_ADDRSTRLEN), ls->addr_text.len += ngx_snprintf((char *) ls->addr_text.data + ls->addr_text.len, 6, ":%d", in_port[p].port); ls->fd = (ngx_socket_t) -1; ls->family = AF_INET; ls->type = SOCK_STREAM; ls->protocol = IPPROTO_IP; #if (WIN32) ls->flags = WSA_FLAG_OVERLAPPED; #endif ls->sockaddr = (struct sockaddr *) addr_in; ls->socklen = sizeof(struct sockaddr_in); ls->addr = offsetof(struct sockaddr_in, sin_addr); ls->addr_text_max_len = INET_ADDRSTRLEN; ls->backlog = -1; #if 0 #if 0 ls->nonblocking = 1; #else ls->nonblocking = 0; #endif #endif ls->handler = ngx_http_init_connection; cscf = in_addr[a].core_srv_conf; ls->pool_size = cscf->connection_pool_size; ls->post_accept_timeout = cscf->post_accept_timeout; clcf = cscf->ctx->loc_conf[ngx_http_core_module.ctx_index]; ls->log = clcf->err_log; #if (WIN32) iocpcf = ngx_event_get_conf(cf->cycle->conf_ctx, ngx_iocp_module); if (iocpcf->acceptex_read) { ls->post_accept_buffer_size = cscf->client_header_buffer_size; } #endif ls->ctx = ctx; if (in_port[p].addrs.nelts > 1) { in_addr = in_port[p].addrs.elts; if (in_addr[in_port[p].addrs.nelts - 1].addr != INADDR_ANY) { /* * if this port has not the "*:port" binding then create * the separate ngx_http_in_port_t for the all bindings */ ngx_test_null(inport, ngx_palloc(cf->pool, sizeof(ngx_http_in_port_t)), NGX_CONF_ERROR); inport->port = in_port[p].port; inport->port_name = in_port[p].port_name; /* init list of the addresses ... */ ngx_init_array(inport->addrs, cf->pool, 1, sizeof(ngx_http_in_addr_t), NGX_CONF_ERROR); /* ... and set up it with the first address */ inport->addrs.nelts = 1; inport->addrs.elts = in_port[p].addrs.elts; ls->servers = inport; /* prepare for the next cycle */ in_port[p].addrs.elts = (char *) in_port[p].addrs.elts + in_port[p].addrs.size; in_port[p].addrs.nelts--; in_addr = (ngx_http_in_addr_t *) in_port[p].addrs.elts; a = 0; continue; } } ls->servers = &in_port[p]; a++; } } #if (NGX_DEBUG) in_port = in_ports.elts; for (p = 0; p < in_ports.nelts; p++) { ngx_log_debug2(NGX_LOG_DEBUG_HTTP, cf->log, 0, "port: %d %08x", in_port[p].port, &in_port[p]); in_addr = in_port[p].addrs.elts; for (a = 0; a < in_port[p].addrs.nelts; a++) { u_char ip[20]; ngx_inet_ntop(AF_INET, &in_addr[a].addr, ip, 20); ngx_log_debug2(NGX_LOG_DEBUG_HTTP, cf->log, 0, "%s %08x", ip, in_addr[a].core_srv_conf); s_name = in_addr[a].names.elts; for (n = 0; n < in_addr[a].names.nelts; n++) { ngx_log_debug2(NGX_LOG_DEBUG_HTTP, cf->log, 0, "%s %08x", s_name[n].name.data, s_name[n].core_srv_conf); } } } #endif return NGX_CONF_OK; } static char *ngx_http_merge_locations(ngx_conf_t *cf, ngx_array_t *locations, void **loc_conf, ngx_http_module_t *module, ngx_uint_t ctx_index) { char *rv; ngx_uint_t i; ngx_http_core_loc_conf_t **clcfp; clcfp = /* (ngx_http_core_loc_conf_t **) */ locations->elts; for (i = 0; i < locations->nelts; i++) { rv = module->merge_loc_conf(cf, loc_conf[ctx_index], clcfp[i]->loc_conf[ctx_index]); if (rv != NGX_CONF_OK) { return rv; } rv = ngx_http_merge_locations(cf, &clcfp[i]->locations, clcfp[i]->loc_conf, module, ctx_index); if (rv != NGX_CONF_OK) { return rv; } } return NGX_CONF_OK; }