| /* $Id$ */ |
| /* |
| * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| #include <pjsip/sip_util.h> |
| #include <pjsip/sip_module.h> |
| #include <pjsip/sip_endpoint.h> |
| #include <pjsip/sip_transaction.h> |
| #include <pjsip/sip_event.h> |
| #include <pjsip/sip_errno.h> |
| #include <pj/assert.h> |
| #include <pj/log.h> |
| #include <pj/pool.h> |
| #include <pj/string.h> |
| |
| struct tsx_data |
| { |
| void *token; |
| void (*cb)(void*, pjsip_event*); |
| }; |
| |
| static void mod_util_on_tsx_state(pjsip_transaction*, pjsip_event*); |
| |
| /* This module will be registered in pjsip_endpt.c */ |
| |
| pjsip_module mod_stateful_util = |
| { |
| NULL, NULL, /* prev, next. */ |
| { "mod-stateful-util", 17 }, /* Name. */ |
| -1, /* Id */ |
| PJSIP_MOD_PRIORITY_APPLICATION, /* Priority */ |
| NULL, /* load() */ |
| NULL, /* start() */ |
| NULL, /* stop() */ |
| NULL, /* unload() */ |
| NULL, /* on_rx_request() */ |
| NULL, /* on_rx_response() */ |
| NULL, /* on_tx_request. */ |
| NULL, /* on_tx_response() */ |
| &mod_util_on_tsx_state, /* on_tsx_state() */ |
| }; |
| |
| static void mod_util_on_tsx_state(pjsip_transaction *tsx, pjsip_event *event) |
| { |
| struct tsx_data *tsx_data; |
| |
| /* Check if the module has been unregistered (see ticket #1535) and also |
| * verify the event type. |
| */ |
| if (mod_stateful_util.id < 0 || event->type != PJSIP_EVENT_TSX_STATE) |
| return; |
| |
| tsx_data = (struct tsx_data*) tsx->mod_data[mod_stateful_util.id]; |
| if (tsx_data == NULL) |
| return; |
| |
| if (tsx->status_code < 200) |
| return; |
| |
| /* Call the callback, if any, and prevent the callback to be called again |
| * by clearing the transaction's module_data. |
| */ |
| tsx->mod_data[mod_stateful_util.id] = NULL; |
| |
| if (tsx_data->cb) { |
| (*tsx_data->cb)(tsx_data->token, event); |
| } |
| } |
| |
| |
| PJ_DEF(pj_status_t) pjsip_endpt_send_request( pjsip_endpoint *endpt, |
| pjsip_tx_data *tdata, |
| pj_int32_t timeout, |
| void *token, |
| pjsip_endpt_send_callback cb) |
| { |
| pjsip_transaction *tsx; |
| struct tsx_data *tsx_data; |
| pj_status_t status; |
| |
| PJ_ASSERT_RETURN(endpt && tdata && (timeout==-1 || timeout>0), PJ_EINVAL); |
| |
| /* Check that transaction layer module is registered to endpoint */ |
| PJ_ASSERT_RETURN(mod_stateful_util.id != -1, PJ_EINVALIDOP); |
| |
| PJ_UNUSED_ARG(timeout); |
| |
| status = pjsip_tsx_create_uac(&mod_stateful_util, tdata, &tsx); |
| if (status != PJ_SUCCESS) { |
| pjsip_tx_data_dec_ref(tdata); |
| return status; |
| } |
| |
| pjsip_tsx_set_transport(tsx, &tdata->tp_sel); |
| |
| tsx_data = PJ_POOL_ALLOC_T(tsx->pool, struct tsx_data); |
| tsx_data->token = token; |
| tsx_data->cb = cb; |
| |
| tsx->mod_data[mod_stateful_util.id] = tsx_data; |
| |
| status = pjsip_tsx_send_msg(tsx, NULL); |
| if (status != PJ_SUCCESS) |
| pjsip_tx_data_dec_ref(tdata); |
| |
| return status; |
| } |
| |
| |
| /* |
| * Send response statefully. |
| */ |
| PJ_DEF(pj_status_t) pjsip_endpt_respond( pjsip_endpoint *endpt, |
| pjsip_module *tsx_user, |
| pjsip_rx_data *rdata, |
| int st_code, |
| const pj_str_t *st_text, |
| const pjsip_hdr *hdr_list, |
| const pjsip_msg_body *body, |
| pjsip_transaction **p_tsx ) |
| { |
| pj_status_t status; |
| pjsip_tx_data *tdata; |
| pjsip_transaction *tsx; |
| |
| /* Validate arguments. */ |
| PJ_ASSERT_RETURN(endpt && rdata, PJ_EINVAL); |
| |
| if (p_tsx) *p_tsx = NULL; |
| |
| /* Create response message */ |
| status = pjsip_endpt_create_response( endpt, rdata, st_code, st_text, |
| &tdata); |
| if (status != PJ_SUCCESS) |
| return status; |
| |
| /* Add the message headers, if any */ |
| if (hdr_list) { |
| const pjsip_hdr *hdr = hdr_list->next; |
| while (hdr != hdr_list) { |
| pjsip_msg_add_hdr(tdata->msg, (pjsip_hdr*) |
| pjsip_hdr_clone(tdata->pool, hdr) ); |
| hdr = hdr->next; |
| } |
| } |
| |
| /* Add the message body, if any. */ |
| if (body) { |
| tdata->msg->body = pjsip_msg_body_clone( tdata->pool, body ); |
| if (tdata->msg->body == NULL) { |
| pjsip_tx_data_dec_ref(tdata); |
| return status; |
| } |
| } |
| |
| /* Create UAS transaction. */ |
| status = pjsip_tsx_create_uas(tsx_user, rdata, &tsx); |
| if (status != PJ_SUCCESS) { |
| pjsip_tx_data_dec_ref(tdata); |
| return status; |
| } |
| |
| /* Feed the request to the transaction. */ |
| pjsip_tsx_recv_msg(tsx, rdata); |
| |
| /* Send the message. */ |
| status = pjsip_tsx_send_msg(tsx, tdata); |
| if (status != PJ_SUCCESS) { |
| pjsip_tx_data_dec_ref(tdata); |
| } else if (p_tsx) { |
| *p_tsx = tsx; |
| } |
| |
| return status; |
| } |
| |
| |