#include #include #include #include static char *ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); int ngx_http_max_module; 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_str_t http_name = ngx_string("http"); 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 }; ngx_module_t ngx_http_module = { NGX_MODULE, &http_name, /* module context */ ngx_http_commands, /* module directives */ NGX_CORE_MODULE, /* module type */ NULL /* init module */ }; static char *ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { int mi, m, s, l, p, a, n; int port_found, addr_found, virtual_names; char *rv; struct sockaddr_in *addr_in; ngx_array_t in_ports; ngx_listening_t *ls; ngx_http_module_t *module; ngx_conf_t pcf; ngx_http_conf_ctx_t *ctx; ngx_http_in_port_t *in_port, *inport; ngx_http_in_addr_t *in_addr, *inaddr; ngx_http_core_main_conf_t *cmcf; ngx_http_core_srv_conf_t **cscfp, *cscf; ngx_http_core_loc_conf_t **clcfp; ngx_http_listen_t *lscf; ngx_http_server_name_t *s_name, *name; #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->create_main_conf) { ngx_test_null(ctx->main_conf[mi], module->create_main_conf(cf->pool), NGX_CONF_ERROR); } if (module->create_srv_conf) { ngx_test_null(ctx->srv_conf[mi], module->create_srv_conf(cf->pool), NGX_CONF_ERROR); } if (module->create_loc_conf) { ngx_test_null(ctx->loc_conf[mi], module->create_loc_conf(cf->pool), 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); *cf = pcf; if (rv != NGX_CONF_OK) 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->pool, ctx->main_conf[mi]); if (rv != NGX_CONF_OK) { 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->pool, ctx->srv_conf[mi], cscfp[s]->ctx->srv_conf[mi]); if (rv != NGX_CONF_OK) { return rv; } } if (module->merge_loc_conf) { /* merge the server{}'s loc_conf */ rv = module->merge_loc_conf(cf->pool, ctx->loc_conf[mi], cscfp[s]->ctx->loc_conf[mi]); if (rv != NGX_CONF_OK) { 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->pool, cscfp[s]->ctx->loc_conf[mi], clcfp[l]->loc_conf[mi]); if (rv != NGX_CONF_OK) { return rv; } } } } } /* init list of the handlers */ ngx_init_array(cmcf->translate_handlers, cf->cycle->pool, 10, sizeof(ngx_http_handler_pt), NGX_CONF_ERROR); ngx_init_array(cmcf->index_handlers, cf->cycle->pool, 3, sizeof(ngx_http_handler_pt), NGX_CONF_ERROR); /* 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].flags & NGX_HTTP_DEFAULT_SERVER) { if (in_addr[a].flags & NGX_HTTP_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].flags |= NGX_HTTP_DEFAULT_SERVER; in_addr[a].core_srv_conf = cscfp[s]; } 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].flags = lscf[l].flags; 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->flags = lscf[l].flags; 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(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->flags = lscf[l].flags; 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); 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(ls->addr_text.data + ngx_inet_ntop(AF_INET, (char *) &in_addr[a].addr, ls->addr_text.data, INET_ADDRSTRLEN), 6, ":%d", in_port[p].port); ls->fd = -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; ls->nonblocking = 1; ls->handler = ngx_http_init_connection; ls->log = cf->log; cscf = in_addr[a].core_srv_conf; ls->pool_size = cscf->connection_pool_size; ls->post_accept_timeout = cscf->post_accept_timeout; #if (WIN32) iocpcf = ngx_event_get_conf(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++; } } /* DEBUG STUFF */ in_port = in_ports.elts; for (p = 0; p < in_ports.nelts; p++) { ngx_log_debug(cf->log, "port: %d" _ in_port[p].port); in_addr = in_port[p].addrs.elts; for (a = 0; a < in_port[p].addrs.nelts; a++) { char ip[20]; ngx_inet_ntop(AF_INET, (char *) &in_addr[a].addr, ip, 20); ngx_log_debug(cf->log, "%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_debug(cf->log, "%s %08x" _ s_name[n].name.data _ s_name[n].core_srv_conf); } } } /**/ return NGX_CONF_OK; }