diff options
author | Mark Michelson <mmichelson@digium.com> | 2013-07-30 18:14:50 +0000 |
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committer | Mark Michelson <mmichelson@digium.com> | 2013-07-30 18:14:50 +0000 |
commit | 735b30ad71110c2a51404cb8686bbe3cf14b630c (patch) | |
tree | 76b1f10135c1b7f210e576be1359539de7e3476c /res/res_pjsip_dtmf_info.c | |
parent | 895c8e0d2c97cd04299f3f179e99d8a3873c06c6 (diff) |
The large GULP->PJSIP renaming effort.
The general gist is to have a clear boundary between old SIP stuff
and new SIP stuff by having the word "SIP" for old stuff and "PJSIP"
for new stuff. Here's a brief rundown of the changes:
* The word "Gulp" in dialstrings, functions, and CLI commands is now
"PJSIP"
* chan_gulp.c is now chan_pjsip.c
* Function names in chan_gulp.c that were "gulp_*" are now "chan_pjsip_*"
* All files that were "res_sip*" are now "res_pjsip*"
* The "res_sip" directory is now "res_pjsip"
* Files in the "res_pjsip" directory that began with "sip_*" are now "pjsip_*"
* The configuration file is now "pjsip.conf" instead of "res_sip.conf"
* The module info for all PJSIP-related files now uses "PJSIP" instead of "SIP"
* CLI and AMI commands created by Asterisk's PJSIP modules now have "pjsip" as
the starting word instead of "sip"
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@395764 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'res/res_pjsip_dtmf_info.c')
-rw-r--r-- | res/res_pjsip_dtmf_info.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/res/res_pjsip_dtmf_info.c b/res/res_pjsip_dtmf_info.c new file mode 100644 index 000000000..6c69b5318 --- /dev/null +++ b/res/res_pjsip_dtmf_info.c @@ -0,0 +1,129 @@ +/* + * Asterisk -- An open source telephony toolkit. + * + * Copyright (C) 2013, Digium, Inc. + * + * Jason Parker <jparker@digium.com> + * + * See http://www.asterisk.org for more information about + * the Asterisk project. Please do not directly contact + * any of the maintainers of this project for assistance; + * the project provides a web site, mailing lists and IRC + * channels for your use. + * + * This program is free software, distributed under the terms of + * the GNU General Public License Version 2. See the LICENSE file + * at the top of the source tree. + */ + +/*** MODULEINFO + <depend>pjproject</depend> + <depend>res_pjsip</depend> + <depend>res_pjsip_session</depend> + <support_level>core</support_level> + ***/ + +#include "asterisk.h" + +#include <pjsip.h> +#include <pjsip_ua.h> + +#include "asterisk/res_pjsip.h" +#include "asterisk/res_pjsip_session.h" +#include "asterisk/module.h" + +static int dtmf_info_incoming_request(struct ast_sip_session *session, struct pjsip_rx_data *rdata) +{ + int res = 0; + pjsip_msg_body *body = rdata->msg_info.msg->body; + + pjsip_tx_data *tdata; + + char buf[body->len]; + char *cur = buf; + char *line; + + char event = '\0'; + unsigned int duration = 0; + + if (!ast_sip_is_content_type(&body->content_type, "application", "dtmf-relay")) { + return 0; + } + + body->print_body(body, buf, body->len); + + while ((line = strsep(&cur, "\r\n"))) { + char *c; + + if (!(c = strchr(line, '='))) { + continue; + } + *c++ = '\0'; + + c = ast_skip_blanks(c); + + if (!strcasecmp(line, "signal")) { + if (c[0] == '!' || c[0] == '*' || c[0] == '#' || + ('0' <= c[0] && c[0] <= '9') || + ('A' <= c[0] && c[0] <= 'D') || + ('a' <= c[0] && c[0] <= 'd')) { + event = c[0]; + } else { + ast_log(LOG_ERROR, "Invalid DTMF event signal in INFO message.\n"); + res = -1; + break; + } + } else if (!strcasecmp(line, "duration")) { + sscanf(c, "%30u", &duration); + } + } + + if (!duration) { + duration = 100; + } + + if (event == '!') { + struct ast_frame f = { AST_FRAME_CONTROL, { AST_CONTROL_FLASH, } }; + + ast_queue_frame(session->channel, &f); + } else if (event != '\0') { + struct ast_frame f = { AST_FRAME_DTMF, }; + f.len = duration; + f.subclass.integer = event; + + ast_queue_frame(session->channel, &f); + } else { + res = -1; + } + + if (pjsip_dlg_create_response(session->inv_session->dlg, rdata, !res ? 200 : 500, NULL, &tdata) == PJ_SUCCESS) { + struct pjsip_transaction *tsx = pjsip_rdata_get_tsx(rdata); + + pjsip_dlg_send_response(session->inv_session->dlg, tsx, tdata); + } + + return res; +} + +static struct ast_sip_session_supplement dtmf_info_supplement = { + .method = "INFO", + .incoming_request = dtmf_info_incoming_request, +}; + +static int load_module(void) +{ + ast_sip_session_register_supplement(&dtmf_info_supplement); + return AST_MODULE_LOAD_SUCCESS; +} + +static int unload_module(void) +{ + ast_sip_session_unregister_supplement(&dtmf_info_supplement); + return 0; +} + +AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "PJSIP DTMF INFO Support", + .load = load_module, + .unload = unload_module, + .load_pri = AST_MODPRI_APP_DEPEND, + ); |