| |
| #include <ngx_config.h> |
| #include <ngx_core.h> |
| #include <ngx_event.h> |
| #include <ngx_http.h> |
| |
| |
| static char *ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
| |
| |
| int ngx_http_max_module; |
| |
| ngx_uint_t ngx_http_total_requests; |
| uint64_t ngx_http_total_sent; |
| |
| |
| int (*ngx_http_top_header_filter) (ngx_http_request_t *r); |
| int (*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 **clcfp, *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 */ |
| |
| 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; |
| } |
| } |
| } |
| } |
| } |
| |
| /* 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; |
| |
| |
| 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_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) { |
| |
| ngx_test_null(ls, ngx_push_array(&cf->cycle->listening), |
| NGX_CONF_ERROR); |
| ngx_memzero(ls, sizeof(ngx_listening_t)); |
| |
| ngx_test_null(addr_in, |
| ngx_pcalloc(cf->pool, sizeof(struct sockaddr_in)), |
| 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); |
| |
| ngx_test_null(ls->addr_text.data, |
| ngx_palloc(cf->pool, INET_ADDRSTRLEN + 6), |
| NGX_CONF_ERROR); |
| |
| ls->addr_text.len = |
| ngx_snprintf((char *) ls->addr_text.data |
| + ngx_inet_ntop(AF_INET, |
| &in_addr[a].addr, |
| ls->addr_text.data, |
| INET_ADDRSTRLEN), |
| 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; |
| } |
