2 * Asterisk -- An open source telephony toolkit.
4 * Copyright (C) 1999 - 2006, Digium, Inc.
6 * Mark Spencer <markster@digium.com>
8 * See http://www.asterisk.org for more information about
9 * the Asterisk project. Please do not directly contact
10 * any of the maintainers of this project for assistance;
11 * the project provides a web site, mailing lists and IRC
12 * channels for your use.
14 * This program is free software, distributed under the terms of
15 * the GNU General Public License Version 2. See the LICENSE file
16 * at the top of the source tree.
21 * \brief AGI - the Asterisk Gateway Interface
23 * \author Mark Spencer <markster@digium.com>
26 #include <sys/types.h>
28 #include <sys/socket.h>
29 #include <netinet/in.h>
30 #include <netinet/tcp.h>
31 #include <arpa/inet.h>
45 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
47 #include "asterisk/file.h"
48 #include "asterisk/logger.h"
49 #include "asterisk/channel.h"
50 #include "asterisk/pbx.h"
51 #include "asterisk/module.h"
52 #include "asterisk/astdb.h"
53 #include "asterisk/callerid.h"
54 #include "asterisk/cli.h"
55 #include "asterisk/logger.h"
56 #include "asterisk/options.h"
57 #include "asterisk/image.h"
58 #include "asterisk/say.h"
59 #include "asterisk/app.h"
60 #include "asterisk/dsp.h"
61 #include "asterisk/musiconhold.h"
62 #include "asterisk/utils.h"
63 #include "asterisk/lock.h"
64 #include "asterisk/strings.h"
65 #include "asterisk/agi.h"
68 #define MAX_COMMANDS 128
70 /* Recycle some stuff from the CLI interface */
71 #define fdprintf agi_debug_cli
73 static char *app = "AGI";
75 static char *eapp = "EAGI";
77 static char *deadapp = "DeadAGI";
79 static char *synopsis = "Executes an AGI compliant application";
80 static char *esynopsis = "Executes an EAGI compliant application";
81 static char *deadsynopsis = "Executes AGI on a hungup channel";
83 static char *descrip =
84 " [E|Dead]AGI(command|args): Executes an Asterisk Gateway Interface compliant\n"
85 "program on a channel. AGI allows Asterisk to launch external programs\n"
86 "written in any language to control a telephony channel, play audio,\n"
87 "read DTMF digits, etc. by communicating with the AGI protocol on stdin\n"
89 "Returns -1 on hangup (except for DeadAGI) or if application requested\n"
90 " hangup, or 0 on non-hangup exit. \n"
91 "Using 'EAGI' provides enhanced AGI, with incoming audio available out of band\n"
92 "on file descriptor 3\n\n"
93 "Use the CLI command 'show agi' to list available agi commands\n";
95 static int agidebug = 0;
97 struct module_symbols *me;
99 #define TONE_BLOCK_SIZE 200
101 /* Max time to connect to an AGI remote host */
102 #define MAX_AGI_CONNECT 2000
104 #define AGI_PORT 4573
106 static void agi_debug_cli(int fd, char *fmt, ...)
113 res = vasprintf(&stuff, fmt, ap);
116 ast_log(LOG_ERROR, "Out of memory\n");
119 ast_verbose("AGI Tx >> %s", stuff);
120 ast_carefulwrite(fd, stuff, strlen(stuff), 100);
125 /* launch_netscript: The fastagi handler.
126 FastAGI defaults to port 4573 */
127 static int launch_netscript(char *agiurl, char *argv[], int *fds, int *efd, int *opid)
131 struct pollfd pfds[1];
133 char *c; int port = AGI_PORT;
135 struct sockaddr_in sin;
137 struct ast_hostent ahp;
139 /* agiusl is "agi://host.domain[:port][/script/name]" */
140 host = ast_strdupa(agiurl + 6); /* Remove agi:// */
141 /* Strip off any script name */
142 if ((c = strchr(host, '/'))) {
147 if ((c = strchr(host, ':'))) {
153 ast_log(LOG_WARNING, "AGI URI's don't support Enhanced AGI yet\n");
156 hp = ast_gethostbyname(host, &ahp);
158 ast_log(LOG_WARNING, "Unable to locate host '%s'\n", host);
161 s = socket(AF_INET, SOCK_STREAM, 0);
163 ast_log(LOG_WARNING, "Unable to create socket: %s\n", strerror(errno));
166 flags = fcntl(s, F_GETFL);
168 ast_log(LOG_WARNING, "Fcntl(F_GETFL) failed: %s\n", strerror(errno));
172 if (fcntl(s, F_SETFL, flags | O_NONBLOCK) < 0) {
173 ast_log(LOG_WARNING, "Fnctl(F_SETFL) failed: %s\n", strerror(errno));
177 memset(&sin, 0, sizeof(sin));
178 sin.sin_family = AF_INET;
179 sin.sin_port = htons(port);
180 memcpy(&sin.sin_addr, hp->h_addr, sizeof(sin.sin_addr));
181 if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) && (errno != EINPROGRESS)) {
182 ast_log(LOG_WARNING, "Connect failed with unexpected error: %s\n", strerror(errno));
188 pfds[0].events = POLLOUT;
189 while (poll(pfds, 1, MAX_AGI_CONNECT) != 1) {
190 if (errno != EINTR) {
191 ast_log(LOG_WARNING, "Connect to '%s' failed: %s\n", agiurl, strerror(errno));
196 /* XXX in theory should check for partial writes... */
197 while (write(s, "agi_network: yes\n", strlen("agi_network: yes\n")) < 0) {
198 if (errno != EINTR) {
199 ast_log(LOG_WARNING, "Connect to '%s' failed: %s\n", agiurl, strerror(errno));
205 /* If we have a script parameter, relay it to the fastagi server */
206 if (!ast_strlen_zero(script))
207 fdprintf(s, "agi_network_script: %s\n", script);
209 if (option_debug > 3)
210 ast_log(LOG_DEBUG, "Wow, connected!\n");
217 static int launch_script(char *script, char *argv[], int *fds, int *efd, int *opid)
228 if (!strncasecmp(script, "agi://", 6))
229 return launch_netscript(script, argv, fds, efd, opid);
231 if (script[0] != '/') {
232 snprintf(tmp, sizeof(tmp), "%s/%s", (char *)ast_config_AST_AGI_DIR, script);
236 ast_log(LOG_WARNING, "Unable to create toast pipe: %s\n",strerror(errno));
240 ast_log(LOG_WARNING, "unable to create fromast pipe: %s\n", strerror(errno));
247 ast_log(LOG_WARNING, "unable to create audio pipe: %s\n", strerror(errno));
254 res = fcntl(audio[1], F_GETFL);
256 res = fcntl(audio[1], F_SETFL, res | O_NONBLOCK);
258 ast_log(LOG_WARNING, "unable to set audio pipe parameters: %s\n", strerror(errno));
270 ast_log(LOG_WARNING, "Failed to fork(): %s\n", strerror(errno));
274 /* Pass paths to AGI via environmental variables */
275 setenv("AST_CONFIG_DIR", ast_config_AST_CONFIG_DIR, 1);
276 setenv("AST_CONFIG_FILE", ast_config_AST_CONFIG_FILE, 1);
277 setenv("AST_MODULE_DIR", ast_config_AST_MODULE_DIR, 1);
278 setenv("AST_SPOOL_DIR", ast_config_AST_SPOOL_DIR, 1);
279 setenv("AST_MONITOR_DIR", ast_config_AST_MONITOR_DIR, 1);
280 setenv("AST_VAR_DIR", ast_config_AST_VAR_DIR, 1);
281 setenv("AST_DATA_DIR", ast_config_AST_DATA_DIR, 1);
282 setenv("AST_LOG_DIR", ast_config_AST_LOG_DIR, 1);
283 setenv("AST_AGI_DIR", ast_config_AST_AGI_DIR, 1);
284 setenv("AST_KEY_DIR", ast_config_AST_KEY_DIR, 1);
285 setenv("AST_RUN_DIR", ast_config_AST_RUN_DIR, 1);
287 /* Redirect stdin and out, provide enhanced audio channel if desired */
288 dup2(fromast[0], STDIN_FILENO);
289 dup2(toast[1], STDOUT_FILENO);
291 dup2(audio[0], STDERR_FILENO + 1);
293 close(STDERR_FILENO + 1);
296 /* unblock important signal handlers */
297 if (sigfillset(&signal_set) || pthread_sigmask(SIG_UNBLOCK, &signal_set, NULL)) {
298 ast_log(LOG_WARNING, "unable to unblock signals for AGI script: %s\n", strerror(errno));
302 /* Close everything but stdin/out/error */
303 for (x=STDERR_FILENO + 2;x<1024;x++)
306 /* Don't run AGI scripts with realtime priority -- it causes audio stutter */
311 /* Can't use ast_log since FD's are closed */
312 fprintf(stdout, "verbose \"Failed to execute '%s': %s\" 2\n", script, strerror(errno));
316 if (option_verbose > 2)
317 ast_verbose(VERBOSE_PREFIX_3 "Launched AGI Script %s\n", script);
323 /* close what we're not using in the parent */
337 static void setup_env(struct ast_channel *chan, char *request, int fd, int enhanced)
339 /* Print initial environment, with agi_request always being the first
341 fdprintf(fd, "agi_request: %s\n", request);
342 fdprintf(fd, "agi_channel: %s\n", chan->name);
343 fdprintf(fd, "agi_language: %s\n", chan->language);
344 fdprintf(fd, "agi_type: %s\n", chan->tech->type);
345 fdprintf(fd, "agi_uniqueid: %s\n", chan->uniqueid);
348 fdprintf(fd, "agi_callerid: %s\n", S_OR(chan->cid.cid_num, "unknown"));
349 fdprintf(fd, "agi_calleridname: %s\n", S_OR(chan->cid.cid_name, "unknown"));
350 fdprintf(fd, "agi_callingpres: %d\n", chan->cid.cid_pres);
351 fdprintf(fd, "agi_callingani2: %d\n", chan->cid.cid_ani2);
352 fdprintf(fd, "agi_callington: %d\n", chan->cid.cid_ton);
353 fdprintf(fd, "agi_callingtns: %d\n", chan->cid.cid_tns);
354 fdprintf(fd, "agi_dnid: %s\n", S_OR(chan->cid.cid_dnid, "unknown"));
355 fdprintf(fd, "agi_rdnis: %s\n", S_OR(chan->cid.cid_rdnis, "unknown"));
357 /* Context information */
358 fdprintf(fd, "agi_context: %s\n", chan->context);
359 fdprintf(fd, "agi_extension: %s\n", chan->exten);
360 fdprintf(fd, "agi_priority: %d\n", chan->priority);
361 fdprintf(fd, "agi_enhanced: %s\n", enhanced ? "1.0" : "0.0");
363 /* User information */
364 fdprintf(fd, "agi_accountcode: %s\n", chan->accountcode ? chan->accountcode : "");
366 /* End with empty return */
370 static int handle_answer(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
374 if (chan->_state != AST_STATE_UP) {
375 /* Answer the chan */
376 res = ast_answer(chan);
378 fdprintf(agi->fd, "200 result=%d\n", res);
379 return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE;
382 static int handle_waitfordigit(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
387 return RESULT_SHOWUSAGE;
388 if (sscanf(argv[3], "%d", &to) != 1)
389 return RESULT_SHOWUSAGE;
390 res = ast_waitfordigit_full(chan, to, agi->audio, agi->ctrl);
391 fdprintf(agi->fd, "200 result=%d\n", res);
392 return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE;
395 static int handle_sendtext(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
399 return RESULT_SHOWUSAGE;
400 /* At the moment, the parser (perhaps broken) returns with
401 the last argument PLUS the newline at the end of the input
402 buffer. This probably needs to be fixed, but I wont do that
403 because other stuff may break as a result. The right way
404 would probably be to strip off the trailing newline before
405 parsing, then here, add a newline at the end of the string
406 before sending it to ast_sendtext --DUDE */
407 res = ast_sendtext(chan, argv[2]);
408 fdprintf(agi->fd, "200 result=%d\n", res);
409 return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE;
412 static int handle_recvchar(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
416 return RESULT_SHOWUSAGE;
417 res = ast_recvchar(chan,atoi(argv[2]));
419 fdprintf(agi->fd, "200 result=%d (timeout)\n", res);
420 return RESULT_SUCCESS;
423 fdprintf(agi->fd, "200 result=%d\n", res);
424 return RESULT_SUCCESS;
427 fdprintf(agi->fd, "200 result=%d (hangup)\n", res);
428 return RESULT_FAILURE;
432 static int handle_recvtext(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
437 return RESULT_SHOWUSAGE;
438 buf = ast_recvtext(chan,atoi(argv[2]));
440 fdprintf(agi->fd, "200 result=1 (%s)\n", buf);
443 fdprintf(agi->fd, "200 result=-1\n");
445 return RESULT_SUCCESS;
448 static int handle_tddmode(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
452 return RESULT_SHOWUSAGE;
453 if (!strncasecmp(argv[2],"on",2))
457 if (!strncasecmp(argv[2],"mate",4))
459 if (!strncasecmp(argv[2],"tdd",3))
461 res = ast_channel_setoption(chan, AST_OPTION_TDD, &x, sizeof(char), 0);
462 if (res != RESULT_SUCCESS)
463 fdprintf(agi->fd, "200 result=0\n");
465 fdprintf(agi->fd, "200 result=1\n");
466 return RESULT_SUCCESS;
469 static int handle_sendimage(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
473 return RESULT_SHOWUSAGE;
474 res = ast_send_image(chan, argv[2]);
475 if (!ast_check_hangup(chan))
477 fdprintf(agi->fd, "200 result=%d\n", res);
478 return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE;
481 static int handle_controlstreamfile(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
490 if (argc < 5 || argc > 9)
491 return RESULT_SHOWUSAGE;
493 if (!ast_strlen_zero(argv[4]))
498 if ((argc > 5) && (sscanf(argv[5], "%d", &skipms) != 1))
499 return RESULT_SHOWUSAGE;
501 if (argc > 6 && !ast_strlen_zero(argv[8]))
506 if (argc > 7 && !ast_strlen_zero(argv[8]))
511 if (argc > 8 && !ast_strlen_zero(argv[8]))
516 res = ast_control_streamfile(chan, argv[3], fwd, rev, stop, pause, NULL, skipms);
518 fdprintf(agi->fd, "200 result=%d\n", res);
520 return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE;
523 static int handle_streamfile(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
526 struct ast_filestream *fs;
527 long sample_offset = 0;
530 if (argc < 4 || argc > 5)
531 return RESULT_SHOWUSAGE;
532 if ((argc > 4) && (sscanf(argv[4], "%ld", &sample_offset) != 1))
533 return RESULT_SHOWUSAGE;
535 fs = ast_openstream(chan, argv[2], chan->language);
537 fdprintf(agi->fd, "200 result=%d endpos=%ld\n", 0, sample_offset);
538 return RESULT_SUCCESS;
540 ast_seekstream(fs, 0, SEEK_END);
541 max_length = ast_tellstream(fs);
542 ast_seekstream(fs, sample_offset, SEEK_SET);
543 res = ast_applystream(chan, fs);
544 res = ast_playstream(fs);
546 fdprintf(agi->fd, "200 result=%d endpos=%ld\n", res, sample_offset);
547 return (res >= 0) ? RESULT_SHOWUSAGE : RESULT_FAILURE;
549 res = ast_waitstream_full(chan, argv[3], agi->audio, agi->ctrl);
550 /* this is to check for if ast_waitstream closed the stream, we probably are at
551 * the end of the stream, return that amount, else check for the amount */
552 sample_offset = (chan->stream) ? ast_tellstream(fs) : max_length;
553 ast_stopstream(chan);
555 /* Stop this command, don't print a result line, as there is a new command */
556 return RESULT_SUCCESS;
558 fdprintf(agi->fd, "200 result=%d endpos=%ld\n", res, sample_offset);
559 return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE;
562 /* get option - really similar to the handle_streamfile, but with a timeout */
563 static int handle_getoption(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
566 struct ast_filestream *fs;
567 long sample_offset = 0;
570 char *edigits = NULL;
572 if ( argc < 4 || argc > 5 )
573 return RESULT_SHOWUSAGE;
579 timeout = atoi(argv[4]);
580 else if (chan->pbx->dtimeout) {
581 /* by default dtimeout is set to 5sec */
582 timeout = chan->pbx->dtimeout * 1000; /* in msec */
585 fs = ast_openstream(chan, argv[2], chan->language);
587 fdprintf(agi->fd, "200 result=%d endpos=%ld\n", 0, sample_offset);
588 ast_log(LOG_WARNING, "Unable to open %s\n", argv[2]);
589 return RESULT_SUCCESS;
591 if (option_verbose > 2)
592 ast_verbose(VERBOSE_PREFIX_3 "Playing '%s' (escape_digits=%s) (timeout %d)\n", argv[2], edigits, timeout);
594 ast_seekstream(fs, 0, SEEK_END);
595 max_length = ast_tellstream(fs);
596 ast_seekstream(fs, sample_offset, SEEK_SET);
597 res = ast_applystream(chan, fs);
598 res = ast_playstream(fs);
600 fdprintf(agi->fd, "200 result=%d endpos=%ld\n", res, sample_offset);
602 return RESULT_SHOWUSAGE;
604 return RESULT_FAILURE;
606 res = ast_waitstream_full(chan, argv[3], agi->audio, agi->ctrl);
607 /* this is to check for if ast_waitstream closed the stream, we probably are at
608 * the end of the stream, return that amount, else check for the amount */
609 sample_offset = (chan->stream)?ast_tellstream(fs):max_length;
610 ast_stopstream(chan);
612 /* Stop this command, don't print a result line, as there is a new command */
613 return RESULT_SUCCESS;
616 /* If the user didnt press a key, wait for digitTimeout*/
618 res = ast_waitfordigit_full(chan, timeout, agi->audio, agi->ctrl);
619 /* Make sure the new result is in the escape digits of the GET OPTION */
620 if ( !strchr(edigits,res) )
624 fdprintf(agi->fd, "200 result=%d endpos=%ld\n", res, sample_offset);
625 return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE;
631 /*--- handle_saynumber: Say number in various language syntaxes ---*/
632 /* Need to add option for gender here as well. Coders wanted */
633 /* While waiting, we're sending a (char *) NULL. */
634 static int handle_saynumber(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
639 return RESULT_SHOWUSAGE;
640 if (sscanf(argv[2], "%d", &num) != 1)
641 return RESULT_SHOWUSAGE;
642 res = ast_say_number_full(chan, num, argv[3], chan->language, (char *) NULL, agi->audio, agi->ctrl);
644 return RESULT_SUCCESS;
645 fdprintf(agi->fd, "200 result=%d\n", res);
646 return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE;
649 static int handle_saydigits(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
655 return RESULT_SHOWUSAGE;
656 if (sscanf(argv[2], "%d", &num) != 1)
657 return RESULT_SHOWUSAGE;
659 res = ast_say_digit_str_full(chan, argv[2], argv[3], chan->language, agi->audio, agi->ctrl);
660 if (res == 1) /* New command */
661 return RESULT_SUCCESS;
662 fdprintf(agi->fd, "200 result=%d\n", res);
663 return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE;
666 static int handle_sayalpha(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
671 return RESULT_SHOWUSAGE;
673 res = ast_say_character_str_full(chan, argv[2], argv[3], chan->language, agi->audio, agi->ctrl);
674 if (res == 1) /* New command */
675 return RESULT_SUCCESS;
676 fdprintf(agi->fd, "200 result=%d\n", res);
677 return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE;
680 static int handle_saydate(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
685 return RESULT_SHOWUSAGE;
686 if (sscanf(argv[2], "%d", &num) != 1)
687 return RESULT_SHOWUSAGE;
688 res = ast_say_date(chan, num, argv[3], chan->language);
690 return RESULT_SUCCESS;
691 fdprintf(agi->fd, "200 result=%d\n", res);
692 return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE;
695 static int handle_saytime(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
700 return RESULT_SHOWUSAGE;
701 if (sscanf(argv[2], "%d", &num) != 1)
702 return RESULT_SHOWUSAGE;
703 res = ast_say_time(chan, num, argv[3], chan->language);
705 return RESULT_SUCCESS;
706 fdprintf(agi->fd, "200 result=%d\n", res);
707 return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE;
710 static int handle_saydatetime(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
714 char *format, *zone=NULL;
717 return RESULT_SHOWUSAGE;
722 /* XXX this doesn't belong here, but in the 'say' module */
723 if (!strcasecmp(chan->language, "de")) {
724 format = "A dBY HMS";
726 format = "ABdY 'digits/at' IMp";
730 if (argc > 5 && !ast_strlen_zero(argv[5]))
733 if (ast_get_time_t(argv[2], &unixtime, 0, NULL))
734 return RESULT_SHOWUSAGE;
736 res = ast_say_date_with_format(chan, unixtime, argv[3], chan->language, format, zone);
738 return RESULT_SUCCESS;
740 fdprintf(agi->fd, "200 result=%d\n", res);
741 return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE;
744 static int handle_sayphonetic(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
749 return RESULT_SHOWUSAGE;
751 res = ast_say_phonetic_str_full(chan, argv[2], argv[3], chan->language, agi->audio, agi->ctrl);
752 if (res == 1) /* New command */
753 return RESULT_SUCCESS;
754 fdprintf(agi->fd, "200 result=%d\n", res);
755 return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE;
758 static int handle_getdata(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
766 return RESULT_SHOWUSAGE;
768 timeout = atoi(argv[3]);
775 res = ast_app_getdata_full(chan, argv[2], data, max, timeout, agi->audio, agi->ctrl);
776 if (res == 2) /* New command */
777 return RESULT_SUCCESS;
779 fdprintf(agi->fd, "200 result=%s (timeout)\n", data);
781 fdprintf(agi->fd, "200 result=-1\n");
783 fdprintf(agi->fd, "200 result=%s\n", data);
784 return RESULT_SUCCESS;
787 static int handle_setcontext(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
791 return RESULT_SHOWUSAGE;
792 ast_copy_string(chan->context, argv[2], sizeof(chan->context));
793 fdprintf(agi->fd, "200 result=0\n");
794 return RESULT_SUCCESS;
797 static int handle_setextension(struct ast_channel *chan, AGI *agi, int argc, char **argv)
800 return RESULT_SHOWUSAGE;
801 ast_copy_string(chan->exten, argv[2], sizeof(chan->exten));
802 fdprintf(agi->fd, "200 result=0\n");
803 return RESULT_SUCCESS;
806 static int handle_setpriority(struct ast_channel *chan, AGI *agi, int argc, char **argv)
810 return RESULT_SHOWUSAGE;
812 if (sscanf(argv[2], "%d", &pri) != 1) {
813 if ((pri = ast_findlabel_extension(chan, chan->context, chan->exten, argv[2], chan->cid.cid_num)) < 1)
814 return RESULT_SHOWUSAGE;
817 ast_explicit_goto(chan, NULL, NULL, pri);
818 fdprintf(agi->fd, "200 result=0\n");
819 return RESULT_SUCCESS;
822 static int handle_recordfile(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
824 struct ast_filestream *fs;
826 struct timeval start;
827 long sample_offset = 0;
831 struct ast_dsp *sildet=NULL; /* silence detector dsp */
832 int totalsilence = 0;
834 int silence = 0; /* amount of silence to allow */
835 int gotsilence = 0; /* did we timeout for silence? */
836 char *silencestr=NULL;
840 /* XXX EAGI FIXME XXX */
843 return RESULT_SHOWUSAGE;
844 if (sscanf(argv[5], "%d", &ms) != 1)
845 return RESULT_SHOWUSAGE;
848 silencestr = strchr(argv[6],'s');
849 if ((argc > 7) && (!silencestr))
850 silencestr = strchr(argv[7],'s');
851 if ((argc > 8) && (!silencestr))
852 silencestr = strchr(argv[8],'s');
855 if (strlen(silencestr) > 2) {
856 if ((silencestr[0] == 's') && (silencestr[1] == '=')) {
860 silence = atoi(silencestr);
868 rfmt = chan->readformat;
869 res = ast_set_read_format(chan, AST_FORMAT_SLINEAR);
871 ast_log(LOG_WARNING, "Unable to set to linear mode, giving up\n");
874 sildet = ast_dsp_new();
876 ast_log(LOG_WARNING, "Unable to create silence detector :(\n");
879 ast_dsp_set_threshold(sildet, 256);
882 /* backward compatibility, if no offset given, arg[6] would have been
883 * caught below and taken to be a beep, else if it is a digit then it is a
885 if ((argc >6) && (sscanf(argv[6], "%ld", &sample_offset) != 1) && (!strchr(argv[6], '=')))
886 res = ast_streamfile(chan, "beep", chan->language);
888 if ((argc > 7) && (!strchr(argv[7], '=')))
889 res = ast_streamfile(chan, "beep", chan->language);
892 res = ast_waitstream(chan, argv[4]);
894 fdprintf(agi->fd, "200 result=%d (randomerror) endpos=%ld\n", res, sample_offset);
896 fs = ast_writefile(argv[2], argv[3], NULL, O_CREAT | O_WRONLY | (sample_offset ? O_APPEND : 0), 0, 0644);
899 fdprintf(agi->fd, "200 result=%d (writefile)\n", res);
901 ast_dsp_free(sildet);
902 return RESULT_FAILURE;
906 ast_applystream(chan,fs);
907 /* really should have checks */
908 ast_seekstream(fs, sample_offset, SEEK_SET);
912 while ((ms < 0) || ast_tvdiff_ms(ast_tvnow(), start) < ms) {
913 res = ast_waitfor(chan, -1);
916 fdprintf(agi->fd, "200 result=%d (waitfor) endpos=%ld\n", res,sample_offset);
918 ast_dsp_free(sildet);
919 return RESULT_FAILURE;
923 fdprintf(agi->fd, "200 result=%d (hangup) endpos=%ld\n", 0, sample_offset);
926 ast_dsp_free(sildet);
927 return RESULT_FAILURE;
929 switch(f->frametype) {
931 if (strchr(argv[4], f->subclass)) {
932 /* This is an interrupting chracter, so rewind to chop off any small
933 amount of DTMF that may have been recorded
935 ast_stream_rewind(fs, 200);
937 sample_offset = ast_tellstream(fs);
938 fdprintf(agi->fd, "200 result=%d (dtmf) endpos=%ld\n", f->subclass, sample_offset);
942 ast_dsp_free(sildet);
943 return RESULT_SUCCESS;
946 case AST_FRAME_VOICE:
947 ast_writestream(fs, f);
948 /* this is a safe place to check progress since we know that fs
949 * is valid after a write, and it will then have our current
951 sample_offset = ast_tellstream(fs);
954 ast_dsp_silence(sildet, f, &dspsilence);
956 totalsilence = dspsilence;
960 if (totalsilence > silence) {
961 /* Ended happily with silence */
975 ast_stream_rewind(fs, silence-1000);
977 sample_offset = ast_tellstream(fs);
979 fdprintf(agi->fd, "200 result=%d (timeout) endpos=%ld\n", res, sample_offset);
984 res = ast_set_read_format(chan, rfmt);
986 ast_log(LOG_WARNING, "Unable to restore read format on '%s'\n", chan->name);
987 ast_dsp_free(sildet);
989 return RESULT_SUCCESS;
992 static int handle_autohangup(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
997 return RESULT_SHOWUSAGE;
998 if (sscanf(argv[2], "%d", &timeout) != 1)
999 return RESULT_SHOWUSAGE;
1003 chan->whentohangup = time(NULL) + timeout;
1005 chan->whentohangup = 0;
1006 fdprintf(agi->fd, "200 result=0\n");
1007 return RESULT_SUCCESS;
1010 static int handle_hangup(struct ast_channel *chan, AGI *agi, int argc, char **argv)
1012 struct ast_channel *c;
1014 /* no argument: hangup the current channel */
1015 ast_softhangup(chan,AST_SOFTHANGUP_EXPLICIT);
1016 fdprintf(agi->fd, "200 result=1\n");
1017 return RESULT_SUCCESS;
1018 } else if (argc == 2) {
1019 /* one argument: look for info on the specified channel */
1020 c = ast_get_channel_by_name_locked(argv[1]);
1022 /* we have a matching channel */
1023 ast_softhangup(c,AST_SOFTHANGUP_EXPLICIT);
1024 fdprintf(agi->fd, "200 result=1\n");
1025 ast_channel_unlock(c);
1026 return RESULT_SUCCESS;
1028 /* if we get this far no channel name matched the argument given */
1029 fdprintf(agi->fd, "200 result=-1\n");
1030 return RESULT_SUCCESS;
1032 return RESULT_SHOWUSAGE;
1036 static int handle_exec(struct ast_channel *chan, AGI *agi, int argc, char **argv)
1039 struct ast_app *app;
1042 return RESULT_SHOWUSAGE;
1044 if (option_verbose > 2)
1045 ast_verbose(VERBOSE_PREFIX_3 "AGI Script Executing Application: (%s) Options: (%s)\n", argv[1], argv[2]);
1047 app = pbx_findapp(argv[1]);
1050 res = pbx_exec(chan, app, argv[2]);
1052 ast_log(LOG_WARNING, "Could not find application (%s)\n", argv[1]);
1055 fdprintf(agi->fd, "200 result=%d\n", res);
1060 static int handle_setcallerid(struct ast_channel *chan, AGI *agi, int argc, char **argv)
1063 char *l = NULL, *n = NULL;
1066 ast_copy_string(tmp, argv[2], sizeof(tmp));
1067 ast_callerid_parse(tmp, &n, &l);
1069 ast_shrink_phone_number(l);
1074 ast_set_callerid(chan, l, n, NULL);
1077 fdprintf(agi->fd, "200 result=1\n");
1078 return RESULT_SUCCESS;
1081 static int handle_channelstatus(struct ast_channel *chan, AGI *agi, int argc, char **argv)
1083 struct ast_channel *c;
1085 /* no argument: supply info on the current channel */
1086 fdprintf(agi->fd, "200 result=%d\n", chan->_state);
1087 return RESULT_SUCCESS;
1088 } else if (argc == 3) {
1089 /* one argument: look for info on the specified channel */
1090 c = ast_get_channel_by_name_locked(argv[2]);
1092 fdprintf(agi->fd, "200 result=%d\n", c->_state);
1093 ast_channel_unlock(c);
1094 return RESULT_SUCCESS;
1096 /* if we get this far no channel name matched the argument given */
1097 fdprintf(agi->fd, "200 result=-1\n");
1098 return RESULT_SUCCESS;
1100 return RESULT_SHOWUSAGE;
1104 static int handle_setvariable(struct ast_channel *chan, AGI *agi, int argc, char **argv)
1107 pbx_builtin_setvar_helper(chan, argv[2], argv[3]);
1109 fdprintf(agi->fd, "200 result=1\n");
1110 return RESULT_SUCCESS;
1113 static int handle_getvariable(struct ast_channel *chan, AGI *agi, int argc, char **argv)
1119 return RESULT_SHOWUSAGE;
1121 /* check if we want to execute an ast_custom_function */
1122 if (!ast_strlen_zero(argv[2]) && (argv[2][strlen(argv[2]) - 1] == ')')) {
1123 ret = ast_func_read(chan, argv[2], tempstr, sizeof(tempstr)) ? NULL : tempstr;
1125 pbx_retrieve_variable(chan, argv[2], &ret, tempstr, sizeof(tempstr), NULL);
1129 fdprintf(agi->fd, "200 result=1 (%s)\n", ret);
1131 fdprintf(agi->fd, "200 result=0\n");
1133 return RESULT_SUCCESS;
1136 static int handle_getvariablefull(struct ast_channel *chan, AGI *agi, int argc, char **argv)
1138 char tmp[4096] = "";
1139 struct ast_channel *chan2=NULL;
1141 if ((argc != 4) && (argc != 5))
1142 return RESULT_SHOWUSAGE;
1144 chan2 = ast_get_channel_by_name_locked(argv[4]);
1148 if (chan) { /* XXX isn't this chan2 ? */
1149 pbx_substitute_variables_helper(chan2, argv[3], tmp, sizeof(tmp) - 1);
1150 fdprintf(agi->fd, "200 result=1 (%s)\n", tmp);
1152 fdprintf(agi->fd, "200 result=0\n");
1154 if (chan2 && (chan2 != chan))
1155 ast_channel_unlock(chan2);
1156 return RESULT_SUCCESS;
1159 static int handle_verbose(struct ast_channel *chan, AGI *agi, int argc, char **argv)
1165 return RESULT_SHOWUSAGE;
1168 sscanf(argv[2], "%d", &level);
1172 prefix = VERBOSE_PREFIX_4;
1175 prefix = VERBOSE_PREFIX_3;
1178 prefix = VERBOSE_PREFIX_2;
1182 prefix = VERBOSE_PREFIX_1;
1186 if (level <= option_verbose)
1187 ast_verbose("%s %s: %s\n", prefix, chan->data, argv[1]);
1189 fdprintf(agi->fd, "200 result=1\n");
1191 return RESULT_SUCCESS;
1194 static int handle_dbget(struct ast_channel *chan, AGI *agi, int argc, char **argv)
1200 return RESULT_SHOWUSAGE;
1201 res = ast_db_get(argv[2], argv[3], tmp, sizeof(tmp));
1203 fdprintf(agi->fd, "200 result=0\n");
1205 fdprintf(agi->fd, "200 result=1 (%s)\n", tmp);
1207 return RESULT_SUCCESS;
1210 static int handle_dbput(struct ast_channel *chan, AGI *agi, int argc, char **argv)
1215 return RESULT_SHOWUSAGE;
1216 res = ast_db_put(argv[2], argv[3], argv[4]);
1217 fdprintf(agi->fd, "200 result=%c\n", res ? '0' : '1');
1218 return RESULT_SUCCESS;
1221 static int handle_dbdel(struct ast_channel *chan, AGI *agi, int argc, char **argv)
1226 return RESULT_SHOWUSAGE;
1227 res = ast_db_del(argv[2], argv[3]);
1228 fdprintf(agi->fd, "200 result=%c\n", res ? '0' : '1');
1229 return RESULT_SUCCESS;
1232 static int handle_dbdeltree(struct ast_channel *chan, AGI *agi, int argc, char **argv)
1235 if ((argc < 3) || (argc > 4))
1236 return RESULT_SHOWUSAGE;
1238 res = ast_db_deltree(argv[2], argv[3]);
1240 res = ast_db_deltree(argv[2], NULL);
1242 fdprintf(agi->fd, "200 result=%c\n", res ? '0' : '1');
1243 return RESULT_SUCCESS;
1246 static char debug_usage[] =
1247 "Usage: agi debug\n"
1248 " Enables dumping of AGI transactions for debugging purposes\n";
1250 static char no_debug_usage[] =
1251 "Usage: agi no debug\n"
1252 " Disables dumping of AGI transactions for debugging purposes\n";
1254 static int agi_do_debug(int fd, int argc, char *argv[])
1257 return RESULT_SHOWUSAGE;
1259 ast_cli(fd, "AGI Debugging Enabled\n");
1260 return RESULT_SUCCESS;
1263 static int agi_no_debug(int fd, int argc, char *argv[])
1266 return RESULT_SHOWUSAGE;
1268 ast_cli(fd, "AGI Debugging Disabled\n");
1269 return RESULT_SUCCESS;
1272 static struct ast_cli_entry cli_debug =
1273 { { "agi", "debug", NULL }, agi_do_debug, "Enable AGI debugging", debug_usage };
1275 static struct ast_cli_entry cli_no_debug =
1276 { { "agi", "no", "debug", NULL }, agi_no_debug, "Disable AGI debugging", no_debug_usage };
1278 static int handle_noop(struct ast_channel *chan, AGI *agi, int arg, char *argv[])
1280 fdprintf(agi->fd, "200 result=0\n");
1281 return RESULT_SUCCESS;
1284 static int handle_setmusic(struct ast_channel *chan, AGI *agi, int argc, char *argv[])
1286 if (!strncasecmp(argv[2], "on", 2))
1287 ast_moh_start(chan, argc > 3 ? argv[3] : NULL);
1288 else if (!strncasecmp(argv[2], "off", 3))
1290 fdprintf(agi->fd, "200 result=0\n");
1291 return RESULT_SUCCESS;
1294 static char usage_setmusic[] =
1295 " Usage: SET MUSIC ON <on|off> <class>\n"
1296 " Enables/Disables the music on hold generator. If <class> is\n"
1297 " not specified, then the default music on hold class will be used.\n"
1298 " Always returns 0.\n";
1300 static char usage_dbput[] =
1301 " Usage: DATABASE PUT <family> <key> <value>\n"
1302 " Adds or updates an entry in the Asterisk database for a\n"
1303 " given family, key, and value.\n"
1304 " Returns 1 if successful, 0 otherwise.\n";
1306 static char usage_dbget[] =
1307 " Usage: DATABASE GET <family> <key>\n"
1308 " Retrieves an entry in the Asterisk database for a\n"
1309 " given family and key.\n"
1310 " Returns 0 if <key> is not set. Returns 1 if <key>\n"
1311 " is set and returns the variable in parentheses.\n"
1312 " Example return code: 200 result=1 (testvariable)\n";
1314 static char usage_dbdel[] =
1315 " Usage: DATABASE DEL <family> <key>\n"
1316 " Deletes an entry in the Asterisk database for a\n"
1317 " given family and key.\n"
1318 " Returns 1 if successful, 0 otherwise.\n";
1320 static char usage_dbdeltree[] =
1321 " Usage: DATABASE DELTREE <family> [keytree]\n"
1322 " Deletes a family or specific keytree within a family\n"
1323 " in the Asterisk database.\n"
1324 " Returns 1 if successful, 0 otherwise.\n";
1326 static char usage_verbose[] =
1327 " Usage: VERBOSE <message> <level>\n"
1328 " Sends <message> to the console via verbose message system.\n"
1329 " <level> is the the verbose level (1-4)\n"
1330 " Always returns 1.\n";
1332 static char usage_getvariable[] =
1333 " Usage: GET VARIABLE <variablename>\n"
1334 " Returns 0 if <variablename> is not set. Returns 1 if <variablename>\n"
1335 " is set and returns the variable in parentheses.\n"
1336 " example return code: 200 result=1 (testvariable)\n";
1338 static char usage_getvariablefull[] =
1339 " Usage: GET FULL VARIABLE <variablename> [<channel name>]\n"
1340 " Returns 0 if <variablename> is not set or channel does not exist. Returns 1\n"
1341 "if <variablename> is set and returns the variable in parenthesis. Understands\n"
1342 "complex variable names and builtin variables, unlike GET VARIABLE.\n"
1343 " example return code: 200 result=1 (testvariable)\n";
1345 static char usage_setvariable[] =
1346 " Usage: SET VARIABLE <variablename> <value>\n";
1348 static char usage_channelstatus[] =
1349 " Usage: CHANNEL STATUS [<channelname>]\n"
1350 " Returns the status of the specified channel.\n"
1351 " If no channel name is given the returns the status of the\n"
1352 " current channel. Return values:\n"
1353 " 0 Channel is down and available\n"
1354 " 1 Channel is down, but reserved\n"
1355 " 2 Channel is off hook\n"
1356 " 3 Digits (or equivalent) have been dialed\n"
1357 " 4 Line is ringing\n"
1358 " 5 Remote end is ringing\n"
1360 " 7 Line is busy\n";
1362 static char usage_setcallerid[] =
1363 " Usage: SET CALLERID <number>\n"
1364 " Changes the callerid of the current channel.\n";
1366 static char usage_exec[] =
1367 " Usage: EXEC <application> <options>\n"
1368 " Executes <application> with given <options>.\n"
1369 " Returns whatever the application returns, or -2 on failure to find application\n";
1371 static char usage_hangup[] =
1372 " Usage: HANGUP [<channelname>]\n"
1373 " Hangs up the specified channel.\n"
1374 " If no channel name is given, hangs up the current channel\n";
1376 static char usage_answer[] =
1378 " Answers channel if not already in answer state. Returns -1 on\n"
1379 " channel failure, or 0 if successful.\n";
1381 static char usage_waitfordigit[] =
1382 " Usage: WAIT FOR DIGIT <timeout>\n"
1383 " Waits up to 'timeout' milliseconds for channel to receive a DTMF digit.\n"
1384 " Returns -1 on channel failure, 0 if no digit is received in the timeout, or\n"
1385 " the numerical value of the ascii of the digit if one is received. Use -1\n"
1386 " for the timeout value if you desire the call to block indefinitely.\n";
1388 static char usage_sendtext[] =
1389 " Usage: SEND TEXT \"<text to send>\"\n"
1390 " Sends the given text on a channel. Most channels do not support the\n"
1391 " transmission of text. Returns 0 if text is sent, or if the channel does not\n"
1392 " support text transmission. Returns -1 only on error/hangup. Text\n"
1393 " consisting of greater than one word should be placed in quotes since the\n"
1394 " command only accepts a single argument.\n";
1396 static char usage_recvchar[] =
1397 " Usage: RECEIVE CHAR <timeout>\n"
1398 " Receives a character of text on a channel. Specify timeout to be the\n"
1399 " maximum time to wait for input in milliseconds, or 0 for infinite. Most channels\n"
1400 " do not support the reception of text. Returns the decimal value of the character\n"
1401 " if one is received, or 0 if the channel does not support text reception. Returns\n"
1402 " -1 only on error/hangup.\n";
1404 static char usage_recvtext[] =
1405 " Usage: RECEIVE TEXT <timeout>\n"
1406 " Receives a string of text on a channel. Specify timeout to be the\n"
1407 " maximum time to wait for input in milliseconds, or 0 for infinite. Most channels\n"
1408 " do not support the reception of text. Returns -1 for failure or 1 for success, and the string in parentheses.\n";
1410 static char usage_tddmode[] =
1411 " Usage: TDD MODE <on|off>\n"
1412 " Enable/Disable TDD transmission/reception on a channel. Returns 1 if\n"
1413 " successful, or 0 if channel is not TDD-capable.\n";
1415 static char usage_sendimage[] =
1416 " Usage: SEND IMAGE <image>\n"
1417 " Sends the given image on a channel. Most channels do not support the\n"
1418 " transmission of images. Returns 0 if image is sent, or if the channel does not\n"
1419 " support image transmission. Returns -1 only on error/hangup. Image names\n"
1420 " should not include extensions.\n";
1422 static char usage_streamfile[] =
1423 " Usage: STREAM FILE <filename> <escape digits> [sample offset]\n"
1424 " Send the given file, allowing playback to be interrupted by the given\n"
1425 " digits, if any. Use double quotes for the digits if you wish none to be\n"
1426 " permitted. If sample offset is provided then the audio will seek to sample\n"
1427 " offset before play starts. Returns 0 if playback completes without a digit\n"
1428 " being pressed, or the ASCII numerical value of the digit if one was pressed,\n"
1429 " or -1 on error or if the channel was disconnected. Remember, the file\n"
1430 " extension must not be included in the filename.\n";
1432 static char usage_controlstreamfile[] =
1433 " Usage: CONTROL STREAM FILE <filename> <escape digits> [skipms] [ffchar] [rewchr] [pausechr]\n"
1434 " Send the given file, allowing playback to be controled by the given\n"
1435 " digits, if any. Use double quotes for the digits if you wish none to be\n"
1436 " permitted. Returns 0 if playback completes without a digit\n"
1437 " being pressed, or the ASCII numerical value of the digit if one was pressed,\n"
1438 " or -1 on error or if the channel was disconnected. Remember, the file\n"
1439 " extension must not be included in the filename.\n\n"
1440 " Note: ffchar and rewchar default to * and # respectively.\n";
1442 static char usage_getoption[] =
1443 " Usage: GET OPTION <filename> <escape_digits> [timeout]\n"
1444 " Behaves similar to STREAM FILE but used with a timeout option.\n";
1446 static char usage_saynumber[] =
1447 " Usage: SAY NUMBER <number> <escape digits>\n"
1448 " Say a given number, returning early if any of the given DTMF digits\n"
1449 " are received on the channel. Returns 0 if playback completes without a digit\n"
1450 " being pressed, or the ASCII numerical value of the digit if one was pressed or\n"
1451 " -1 on error/hangup.\n";
1453 static char usage_saydigits[] =
1454 " Usage: SAY DIGITS <number> <escape digits>\n"
1455 " Say a given digit string, returning early if any of the given DTMF digits\n"
1456 " are received on the channel. Returns 0 if playback completes without a digit\n"
1457 " being pressed, or the ASCII numerical value of the digit if one was pressed or\n"
1458 " -1 on error/hangup.\n";
1460 static char usage_sayalpha[] =
1461 " Usage: SAY ALPHA <number> <escape digits>\n"
1462 " Say a given character string, returning early if any of the given DTMF digits\n"
1463 " are received on the channel. Returns 0 if playback completes without a digit\n"
1464 " being pressed, or the ASCII numerical value of the digit if one was pressed or\n"
1465 " -1 on error/hangup.\n";
1467 static char usage_saydate[] =
1468 " Usage: SAY DATE <date> <escape digits>\n"
1469 " Say a given date, returning early if any of the given DTMF digits are\n"
1470 " received on the channel. <date> is number of seconds elapsed since 00:00:00\n"
1471 " on January 1, 1970, Coordinated Universal Time (UTC). Returns 0 if playback\n"
1472 " completes without a digit being pressed, or the ASCII numerical value of the\n"
1473 " digit if one was pressed or -1 on error/hangup.\n";
1475 static char usage_saytime[] =
1476 " Usage: SAY TIME <time> <escape digits>\n"
1477 " Say a given time, returning early if any of the given DTMF digits are\n"
1478 " received on the channel. <time> is number of seconds elapsed since 00:00:00\n"
1479 " on January 1, 1970, Coordinated Universal Time (UTC). Returns 0 if playback\n"
1480 " completes without a digit being pressed, or the ASCII numerical value of the\n"
1481 " digit if one was pressed or -1 on error/hangup.\n";
1483 static char usage_saydatetime[] =
1484 " Usage: SAY DATETIME <time> <escape digits> [format] [timezone]\n"
1485 " Say a given time, returning early if any of the given DTMF digits are\n"
1486 " received on the channel. <time> is number of seconds elapsed since 00:00:00\n"
1487 " on January 1, 1970, Coordinated Universal Time (UTC). [format] is the format\n"
1488 " the time should be said in. See voicemail.conf (defaults to \"ABdY\n"
1489 " 'digits/at' IMp\"). Acceptable values for [timezone] can be found in\n"
1490 " /usr/share/zoneinfo. Defaults to machine default. Returns 0 if playback\n"
1491 " completes without a digit being pressed, or the ASCII numerical value of the\n"
1492 " digit if one was pressed or -1 on error/hangup.\n";
1494 static char usage_sayphonetic[] =
1495 " Usage: SAY PHONETIC <string> <escape digits>\n"
1496 " Say a given character string with phonetics, returning early if any of the\n"
1497 " given DTMF digits are received on the channel. Returns 0 if playback\n"
1498 " completes without a digit pressed, the ASCII numerical value of the digit\n"
1499 " if one was pressed, or -1 on error/hangup.\n";
1501 static char usage_getdata[] =
1502 " Usage: GET DATA <file to be streamed> [timeout] [max digits]\n"
1503 " Stream the given file, and recieve DTMF data. Returns the digits received\n"
1504 "from the channel at the other end.\n";
1506 static char usage_setcontext[] =
1507 " Usage: SET CONTEXT <desired context>\n"
1508 " Sets the context for continuation upon exiting the application.\n";
1510 static char usage_setextension[] =
1511 " Usage: SET EXTENSION <new extension>\n"
1512 " Changes the extension for continuation upon exiting the application.\n";
1514 static char usage_setpriority[] =
1515 " Usage: SET PRIORITY <priority>\n"
1516 " Changes the priority for continuation upon exiting the application.\n"
1517 " The priority must be a valid priority or label.\n";
1519 static char usage_recordfile[] =
1520 " Usage: RECORD FILE <filename> <format> <escape digits> <timeout> \\\n"
1521 " [offset samples] [BEEP] [s=silence]\n"
1522 " Record to a file until a given dtmf digit in the sequence is received\n"
1523 " Returns -1 on hangup or error. The format will specify what kind of file\n"
1524 " will be recorded. The timeout is the maximum record time in milliseconds, or\n"
1525 " -1 for no timeout. \"Offset samples\" is optional, and, if provided, will seek\n"
1526 " to the offset without exceeding the end of the file. \"silence\" is the number\n"
1527 " of seconds of silence allowed before the function returns despite the\n"
1528 " lack of dtmf digits or reaching timeout. Silence value must be\n"
1529 " preceeded by \"s=\" and is also optional.\n";
1531 static char usage_autohangup[] =
1532 " Usage: SET AUTOHANGUP <time>\n"
1533 " Cause the channel to automatically hangup at <time> seconds in the\n"
1534 " future. Of course it can be hungup before then as well. Setting to 0 will\n"
1535 " cause the autohangup feature to be disabled on this channel.\n";
1537 static char usage_noop[] =
1541 static agi_command commands[MAX_COMMANDS] = {
1542 { { "answer", NULL }, handle_answer, "Answer channel", usage_answer },
1543 { { "channel", "status", NULL }, handle_channelstatus, "Returns status of the connected channel", usage_channelstatus },
1544 { { "database", "del", NULL }, handle_dbdel, "Removes database key/value", usage_dbdel },
1545 { { "database", "deltree", NULL }, handle_dbdeltree, "Removes database keytree/value", usage_dbdeltree },
1546 { { "database", "get", NULL }, handle_dbget, "Gets database value", usage_dbget },
1547 { { "database", "put", NULL }, handle_dbput, "Adds/updates database value", usage_dbput },
1548 { { "exec", NULL }, handle_exec, "Executes a given Application", usage_exec },
1549 { { "get", "data", NULL }, handle_getdata, "Prompts for DTMF on a channel", usage_getdata },
1550 { { "get", "full", "variable", NULL }, handle_getvariablefull, "Evaluates a channel expression", usage_getvariablefull },
1551 { { "get", "option", NULL }, handle_getoption, "Stream file, prompt for DTMF, with timeout", usage_getoption },
1552 { { "get", "variable", NULL }, handle_getvariable, "Gets a channel variable", usage_getvariable },
1553 { { "hangup", NULL }, handle_hangup, "Hangup the current channel", usage_hangup },
1554 { { "noop", NULL }, handle_noop, "Does nothing", usage_noop },
1555 { { "receive", "char", NULL }, handle_recvchar, "Receives one character from channels supporting it", usage_recvchar },
1556 { { "receive", "text", NULL }, handle_recvtext, "Receives text from channels supporting it", usage_recvtext },
1557 { { "record", "file", NULL }, handle_recordfile, "Records to a given file", usage_recordfile },
1558 { { "say", "alpha", NULL }, handle_sayalpha, "Says a given character string", usage_sayalpha },
1559 { { "say", "digits", NULL }, handle_saydigits, "Says a given digit string", usage_saydigits },
1560 { { "say", "number", NULL }, handle_saynumber, "Says a given number", usage_saynumber },
1561 { { "say", "phonetic", NULL }, handle_sayphonetic, "Says a given character string with phonetics", usage_sayphonetic },
1562 { { "say", "date", NULL }, handle_saydate, "Says a given date", usage_saydate },
1563 { { "say", "time", NULL }, handle_saytime, "Says a given time", usage_saytime },
1564 { { "say", "datetime", NULL }, handle_saydatetime, "Says a given time as specfied by the format given", usage_saydatetime },
1565 { { "send", "image", NULL }, handle_sendimage, "Sends images to channels supporting it", usage_sendimage },
1566 { { "send", "text", NULL }, handle_sendtext, "Sends text to channels supporting it", usage_sendtext },
1567 { { "set", "autohangup", NULL }, handle_autohangup, "Autohangup channel in some time", usage_autohangup },
1568 { { "set", "callerid", NULL }, handle_setcallerid, "Sets callerid for the current channel", usage_setcallerid },
1569 { { "set", "context", NULL }, handle_setcontext, "Sets channel context", usage_setcontext },
1570 { { "set", "extension", NULL }, handle_setextension, "Changes channel extension", usage_setextension },
1571 { { "set", "music", NULL }, handle_setmusic, "Enable/Disable Music on hold generator", usage_setmusic },
1572 { { "set", "priority", NULL }, handle_setpriority, "Set channel dialplan priority", usage_setpriority },
1573 { { "set", "variable", NULL }, handle_setvariable, "Sets a channel variable", usage_setvariable },
1574 { { "stream", "file", NULL }, handle_streamfile, "Sends audio file on channel", usage_streamfile },
1575 { { "control", "stream", "file", NULL }, handle_controlstreamfile, "Sends audio file on channel and allows the listner to control the stream", usage_controlstreamfile },
1576 { { "tdd", "mode", NULL }, handle_tddmode, "Toggles TDD mode (for the deaf)", usage_tddmode },
1577 { { "verbose", NULL }, handle_verbose, "Logs a message to the asterisk verbose log", usage_verbose },
1578 { { "wait", "for", "digit", NULL }, handle_waitfordigit, "Waits for a digit to be pressed", usage_waitfordigit },
1581 static int help_workhorse(int fd, char *match[])
1586 struct agi_command *e;
1588 ast_join(matchstr, sizeof(matchstr), match);
1589 for (x=0;x<sizeof(commands)/sizeof(commands[0]);x++) {
1593 /* Hide commands that start with '_' */
1594 if ((e->cmda[0])[0] == '_')
1596 ast_join(fullcmd, sizeof(fullcmd), e->cmda);
1597 if (match && strncasecmp(matchstr, fullcmd, strlen(matchstr)))
1599 ast_cli(fd, "%20.20s %s\n", fullcmd, e->summary);
1604 int agi_register(agi_command *agi)
1607 for (x=0; x<MAX_COMMANDS - 1; x++) {
1608 if (commands[x].cmda[0] == agi->cmda[0]) {
1609 ast_log(LOG_WARNING, "Command already registered!\n");
1613 for (x=0; x<MAX_COMMANDS - 1; x++) {
1614 if (!commands[x].cmda[0]) {
1619 ast_log(LOG_WARNING, "No more room for new commands!\n");
1623 void agi_unregister(agi_command *agi)
1626 for (x=0; x<MAX_COMMANDS - 1; x++) {
1627 if (commands[x].cmda[0] == agi->cmda[0]) {
1628 memset(&commands[x], 0, sizeof(agi_command));
1633 static agi_command *find_command(char *cmds[], int exact)
1639 for (x=0; x < sizeof(commands) / sizeof(commands[0]); x++) {
1640 if (!commands[x].cmda[0])
1642 /* start optimistic */
1644 for (y=0; match && cmds[y]; y++) {
1645 /* If there are no more words in the command (and we're looking for
1646 an exact match) or there is a difference between the two words,
1647 then this is not a match */
1648 if (!commands[x].cmda[y] && !exact)
1650 /* don't segfault if the next part of a command doesn't exist */
1651 if (!commands[x].cmda[y])
1653 if (strcasecmp(commands[x].cmda[y], cmds[y]))
1656 /* If more words are needed to complete the command then this is not
1657 a candidate (unless we're looking for a really inexact answer */
1658 if ((exact > -1) && commands[x].cmda[y])
1661 return &commands[x];
1667 static int parse_args(char *s, int *max, char *argv[])
1679 /* If it's escaped, put a literal quote */
1684 if (quoted && whitespace) {
1685 /* If we're starting a quote, coming off white space start a new word, too */
1693 if (!quoted && !escaped) {
1694 /* If we're not quoted, mark this as whitespace, and
1695 end the previous argument */
1699 /* Otherwise, just treat it as anything else */
1703 /* If we're escaped, print a literal, otherwise enable escaping */
1713 if (x >= MAX_ARGS -1) {
1714 ast_log(LOG_WARNING, "Too many arguments, truncating\n");
1717 /* Coming off of whitespace, start the next argument */
1726 /* Null terminate */
1733 static int agi_handle_command(struct ast_channel *chan, AGI *agi, char *buf)
1735 char *argv[MAX_ARGS];
1736 int argc = MAX_ARGS;
1740 parse_args(buf, &argc, argv);
1743 for (x=0; x<argc; x++)
1744 fprintf(stderr, "Got Arg%d: %s\n", x, argv[x]); }
1746 c = find_command(argv, 0);
1748 res = c->handler(chan, agi, argc, argv);
1750 case RESULT_SHOWUSAGE:
1751 fdprintf(agi->fd, "520-Invalid command syntax. Proper usage follows:\n");
1752 fdprintf(agi->fd, c->usage);
1753 fdprintf(agi->fd, "520 End of proper usage.\n");
1755 case AST_PBX_KEEPALIVE:
1756 /* We've been asked to keep alive, so do so */
1757 return AST_PBX_KEEPALIVE;
1759 case RESULT_FAILURE:
1760 /* They've already given the failure. We've been hung up on so handle this
1765 fdprintf(agi->fd, "510 Invalid or unknown command\n");
1770 static int run_agi(struct ast_channel *chan, char *request, AGI *agi, int pid, int dead)
1772 struct ast_channel *c;
1775 int returnstatus = 0;
1776 struct ast_frame *f;
1779 /* how many times we'll retry if ast_waitfor_nandfs will return without either
1780 channel or file descriptor in case select is interrupted by a system call (EINTR) */
1783 if (!(readf = fdopen(agi->ctrl, "r"))) {
1784 ast_log(LOG_WARNING, "Unable to fdopen file descriptor\n");
1791 setup_env(chan, request, agi->fd, (agi->audio > -1));
1794 c = ast_waitfor_nandfds(&chan, dead ? 0 : 1, &agi->ctrl, 1, NULL, &outfd, &ms);
1797 /* Idle the channel until we get a command */
1800 ast_log(LOG_DEBUG, "%s hungup\n", chan->name);
1804 /* If it's voice, write it to the audio pipe */
1805 if ((agi->audio > -1) && (f->frametype == AST_FRAME_VOICE)) {
1806 /* Write, ignoring errors */
1807 write(agi->audio, f->data, f->datalen);
1811 } else if (outfd > -1) {
1813 if (!fgets(buf, sizeof(buf), readf)) {
1814 /* Program terminated */
1817 if (option_verbose > 2)
1818 ast_verbose(VERBOSE_PREFIX_3 "AGI Script %s completed, returning %d\n", request, returnstatus);
1819 /* No need to kill the pid anymore, since they closed us */
1823 /* get rid of trailing newline, if any */
1824 if (*buf && buf[strlen(buf) - 1] == '\n')
1825 buf[strlen(buf) - 1] = 0;
1827 ast_verbose("AGI Rx << %s\n", buf);
1828 returnstatus |= agi_handle_command(chan, agi, buf);
1829 /* If the handle_command returns -1, we need to stop */
1830 if ((returnstatus < 0) || (returnstatus == AST_PBX_KEEPALIVE)) {
1835 ast_log(LOG_WARNING, "No channel, no fd?\n");
1841 /* Notify process */
1843 if (kill(pid, SIGHUP))
1844 ast_log(LOG_WARNING, "unable to send SIGHUP to AGI process %d: %s\n", pid, strerror(errno));
1847 return returnstatus;
1850 static int handle_showagi(int fd, int argc, char *argv[])
1852 struct agi_command *e;
1855 return RESULT_SHOWUSAGE;
1857 e = find_command(argv + 2, 1);
1859 ast_cli(fd, e->usage);
1861 if (find_command(argv + 2, -1)) {
1862 return help_workhorse(fd, argv + 1);
1864 ast_join(fullcmd, sizeof(fullcmd), argv+1);
1865 ast_cli(fd, "No such command '%s'.\n", fullcmd);
1869 return help_workhorse(fd, NULL);
1871 return RESULT_SUCCESS;
1874 static int handle_dumpagihtml(int fd, int argc, char *argv[])
1876 struct agi_command *e;
1882 return RESULT_SHOWUSAGE;
1884 if (!(htmlfile = fopen(argv[2], "wt"))) {
1885 ast_cli(fd, "Could not create file '%s'\n", argv[2]);
1886 return RESULT_SHOWUSAGE;
1889 fprintf(htmlfile, "<HTML>\n<HEAD>\n<TITLE>AGI Commands</TITLE>\n</HEAD>\n");
1890 fprintf(htmlfile, "<BODY>\n<CENTER><B><H1>AGI Commands</H1></B></CENTER>\n\n");
1893 fprintf(htmlfile, "<TABLE BORDER=\"0\" CELLSPACING=\"10\">\n");
1895 for (x=0;x<sizeof(commands)/sizeof(commands[0]);x++) {
1896 char *stringp, *tempstr;
1899 if (!e->cmda[0]) /* end ? */
1901 /* Hide commands that start with '_' */
1902 if ((e->cmda[0])[0] == '_')
1904 ast_join(fullcmd, sizeof(fullcmd), e->cmda);
1906 fprintf(htmlfile, "<TR><TD><TABLE BORDER=\"1\" CELLPADDING=\"5\" WIDTH=\"100%%\">\n");
1907 fprintf(htmlfile, "<TR><TH ALIGN=\"CENTER\"><B>%s - %s</B></TD></TR>\n", fullcmd,e->summary);
1910 tempstr = strsep(&stringp, "\n");
1912 fprintf(htmlfile, "<TR><TD ALIGN=\"CENTER\">%s</TD></TR>\n", tempstr);
1914 fprintf(htmlfile, "<TR><TD ALIGN=\"CENTER\">\n");
1915 while ((tempstr = strsep(&stringp, "\n")) != NULL)
1916 fprintf(htmlfile, "%s<BR>\n",tempstr);
1917 fprintf(htmlfile, "</TD></TR>\n");
1918 fprintf(htmlfile, "</TABLE></TD></TR>\n\n");
1922 fprintf(htmlfile, "</TABLE>\n</BODY>\n</HTML>\n");
1924 ast_cli(fd, "AGI HTML Commands Dumped to: %s\n", argv[2]);
1925 return RESULT_SUCCESS;
1928 static int agi_exec_full(struct ast_channel *chan, void *data, int enhanced, int dead)
1931 struct localuser *u;
1932 char *argv[MAX_ARGS];
1934 char *tmp = (char *)buf;
1942 if (ast_strlen_zero(data)) {
1943 ast_log(LOG_WARNING, "AGI requires an argument (script)\n");
1946 ast_copy_string(buf, data, sizeof(buf));
1948 memset(&agi, 0, sizeof(agi));
1949 while ((stringp = strsep(&tmp, "|")) && argc < MAX_ARGS-1)
1950 argv[argc++] = stringp;
1953 u = ast_localuser_add(me, chan);
1955 /* Answer if need be */
1956 if (chan->_state != AST_STATE_UP) {
1957 if (ast_answer(chan)) {
1958 LOCAL_USER_REMOVE(u);
1963 res = launch_script(argv[0], argv, fds, enhanced ? &efd : NULL, &pid);
1968 res = run_agi(chan, argv[0], &agi, pid, dead);
1973 ast_localuser_remove(me, u);
1977 static int agi_exec(struct ast_channel *chan, void *data)
1979 if (chan->_softhangup)
1980 ast_log(LOG_WARNING, "If you want to run AGI on hungup channels you should use DeadAGI!\n");
1981 return agi_exec_full(chan, data, 0, 0);
1984 static int eagi_exec(struct ast_channel *chan, void *data)
1989 if (chan->_softhangup)
1990 ast_log(LOG_WARNING, "If you want to run AGI on hungup channels you should use DeadAGI!\n");
1991 readformat = chan->readformat;
1992 if (ast_set_read_format(chan, AST_FORMAT_SLINEAR)) {
1993 ast_log(LOG_WARNING, "Unable to set channel '%s' to linear mode\n", chan->name);
1996 res = agi_exec_full(chan, data, 1, 0);
1998 if (ast_set_read_format(chan, readformat)) {
1999 ast_log(LOG_WARNING, "Unable to restore channel '%s' to format %s\n", chan->name, ast_getformatname(readformat));
2005 static int deadagi_exec(struct ast_channel *chan, void *data)
2007 return agi_exec_full(chan, data, 0, 1);
2010 static char showagi_help[] =
2011 "Usage: show agi [topic]\n"
2012 " When called with a topic as an argument, displays usage\n"
2013 " information on the given command. If called without a\n"
2014 " topic, it provides a list of AGI commands.\n";
2017 static char dumpagihtml_help[] =
2018 "Usage: dump agihtml <filename>\n"
2019 " Dumps the agi command list in html format to given filename\n";
2021 static struct ast_cli_entry showagi =
2022 { { "show", "agi", NULL }, handle_showagi, "Show AGI commands or specific help", showagi_help };
2024 static struct ast_cli_entry dumpagihtml =
2025 { { "dump", "agihtml", NULL }, handle_dumpagihtml, "Dumps a list of agi command in html format", dumpagihtml_help };
2027 static int unload_module(void *mod)
2029 ast_hangup_localusers(mod);
2030 ast_cli_unregister(&showagi);
2031 ast_cli_unregister(&dumpagihtml);
2032 ast_cli_unregister(&cli_debug);
2033 ast_cli_unregister(&cli_no_debug);
2034 ast_unregister_application(eapp);
2035 ast_unregister_application(deadapp);
2036 return ast_unregister_application(app);
2039 static int load_module(void *mod)
2042 ast_cli_register(&showagi);
2043 ast_cli_register(&dumpagihtml);
2044 ast_cli_register(&cli_debug);
2045 ast_cli_register(&cli_no_debug);
2046 ast_register_application(deadapp, deadagi_exec, deadsynopsis, descrip);
2047 ast_register_application(eapp, eagi_exec, esynopsis, descrip);
2048 return ast_register_application(app, agi_exec, synopsis, descrip);
2051 static const char *description(void)
2053 return "Asterisk Gateway Interface (AGI)";
2056 static const char *key(void)
2058 return ASTERISK_GPL_KEY;
2061 STD_MOD(MOD_0, NULL, NULL, NULL);