/* * Asterisk -- An open source telephony toolkit. * * Copyright (C) 1999 - 2006, Digium, Inc. * * Mark Spencer * * 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. */ /*! \file * * \brief AGI - the Asterisk Gateway Interface * * \author Mark Spencer */ #include "asterisk.h" ASTERISK_FILE_VERSION(__FILE__, "$Revision$") #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "asterisk/file.h" #include "asterisk/logger.h" #include "asterisk/channel.h" #include "asterisk/pbx.h" #include "asterisk/module.h" #include "asterisk/astdb.h" #include "asterisk/callerid.h" #include "asterisk/cli.h" #include "asterisk/logger.h" #include "asterisk/options.h" #include "asterisk/image.h" #include "asterisk/say.h" #include "asterisk/app.h" #include "asterisk/dsp.h" #include "asterisk/musiconhold.h" #include "asterisk/utils.h" #include "asterisk/lock.h" #include "asterisk/strings.h" #include "asterisk/agi.h" #define MAX_ARGS 128 #define MAX_COMMANDS 128 /* Recycle some stuff from the CLI interface */ #define fdprintf agi_debug_cli static char *app = "AGI"; static char *eapp = "EAGI"; static char *deadapp = "DeadAGI"; static char *synopsis = "Executes an AGI compliant application"; static char *esynopsis = "Executes an EAGI compliant application"; static char *deadsynopsis = "Executes AGI on a hungup channel"; static char *descrip = " [E|Dead]AGI(command|args): Executes an Asterisk Gateway Interface compliant\n" "program on a channel. AGI allows Asterisk to launch external programs\n" "written in any language to control a telephony channel, play audio,\n" "read DTMF digits, etc. by communicating with the AGI protocol on stdin\n" "and stdout.\n" " This channel will stop dialplan execution on hangup inside of this\n" "application, except when using DeadAGI. Otherwise, dialplan execution\n" "will continue normally.\n" " A locally executed AGI script will receive SIGHUP on hangup from the channel\n" "except when using DeadAGI. This can be disabled by setting the AGISIGHUP channel\n" "variable to \"no\" before executing the AGI application.\n" " Using 'EAGI' provides enhanced AGI, with incoming audio available out of band\n" "on file descriptor 3\n\n" " Use the CLI command 'agi show' to list available agi commands\n" " This application sets the following channel variable upon completion:\n" " AGISTATUS The status of the attempt to the run the AGI script\n" " text string, one of SUCCESS | FAILED | HANGUP\n"; static int agidebug = 0; #define TONE_BLOCK_SIZE 200 /* Max time to connect to an AGI remote host */ #define MAX_AGI_CONNECT 2000 #define AGI_PORT 4573 enum agi_result { AGI_RESULT_SUCCESS, AGI_RESULT_FAILURE, AGI_RESULT_HANGUP }; static int agi_debug_cli(int fd, char *fmt, ...) { char *stuff; int res = 0; va_list ap; va_start(ap, fmt); res = vasprintf(&stuff, fmt, ap); va_end(ap); if (res == -1) { ast_log(LOG_ERROR, "Out of memory\n"); } else { if (agidebug) ast_verbose("AGI Tx >> %s", stuff); /* \n provided by caller */ res = ast_carefulwrite(fd, stuff, strlen(stuff), 100); free(stuff); } return res; } /* launch_netscript: The fastagi handler. FastAGI defaults to port 4573 */ static enum agi_result launch_netscript(char *agiurl, char *argv[], int *fds, int *efd, int *opid) { int s; int flags; struct pollfd pfds[1]; char *host; char *c; int port = AGI_PORT; char *script=""; struct sockaddr_in sin; struct hostent *hp; struct ast_hostent ahp; int res; /* agiusl is "agi://host.domain[:port][/script/name]" */ host = ast_strdupa(agiurl + 6); /* Remove agi:// */ /* Strip off any script name */ if ((c = strchr(host, '/'))) { *c = '\0'; c++; script = c; } if ((c = strchr(host, ':'))) { *c = '\0'; c++; port = atoi(c); } if (efd) { ast_log(LOG_WARNING, "AGI URI's don't support Enhanced AGI yet\n"); return -1; } hp = ast_gethostbyname(host, &ahp); if (!hp) { ast_log(LOG_WARNING, "Unable to locate host '%s'\n", host); return -1; } s = socket(AF_INET, SOCK_STREAM, 0); if (s < 0) { ast_log(LOG_WARNING, "Unable to create socket: %s\n", strerror(errno)); return -1; } flags = fcntl(s, F_GETFL); if (flags < 0) { ast_log(LOG_WARNING, "Fcntl(F_GETFL) failed: %s\n", strerror(errno)); close(s); return -1; } if (fcntl(s, F_SETFL, flags | O_NONBLOCK) < 0) { ast_log(LOG_WARNING, "Fnctl(F_SETFL) failed: %s\n", strerror(errno)); close(s); return -1; } memset(&sin, 0, sizeof(sin)); sin.sin_family = AF_INET; sin.sin_port = htons(port); memcpy(&sin.sin_addr, hp->h_addr, sizeof(sin.sin_addr)); if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) && (errno != EINPROGRESS)) { ast_log(LOG_WARNING, "Connect failed with unexpected error: %s\n", strerror(errno)); close(s); return AGI_RESULT_FAILURE; } pfds[0].fd = s; pfds[0].events = POLLOUT; while ((res = poll(pfds, 1, MAX_AGI_CONNECT)) != 1) { if (errno != EINTR) { if (!res) { ast_log(LOG_WARNING, "FastAGI connection to '%s' timed out after MAX_AGI_CONNECT (%d) milliseconds.\n", agiurl, MAX_AGI_CONNECT); } else ast_log(LOG_WARNING, "Connect to '%s' failed: %s\n", agiurl, strerror(errno)); close(s); return AGI_RESULT_FAILURE; } } if (fdprintf(s, "agi_network: yes\n") < 0) { if (errno != EINTR) { ast_log(LOG_WARNING, "Connect to '%s' failed: %s\n", agiurl, strerror(errno)); close(s); return AGI_RESULT_FAILURE; } } /* If we have a script parameter, relay it to the fastagi server */ if (!ast_strlen_zero(script)) fdprintf(s, "agi_network_script: %s\n", script); if (option_debug > 3) ast_log(LOG_DEBUG, "Wow, connected!\n"); fds[0] = s; fds[1] = s; *opid = -1; return AGI_RESULT_SUCCESS; } static enum agi_result launch_script(char *script, char *argv[], int *fds, int *efd, int *opid) { char tmp[256]; int pid; int toast[2]; int fromast[2]; int audio[2]; int x; int res; sigset_t signal_set, old_set; if (!strncasecmp(script, "agi://", 6)) return launch_netscript(script, argv, fds, efd, opid); if (script[0] != '/') { snprintf(tmp, sizeof(tmp), "%s/%s", (char *)ast_config_AST_AGI_DIR, script); script = tmp; } if (pipe(toast)) { ast_log(LOG_WARNING, "Unable to create toast pipe: %s\n",strerror(errno)); return AGI_RESULT_FAILURE; } if (pipe(fromast)) { ast_log(LOG_WARNING, "unable to create fromast pipe: %s\n", strerror(errno)); close(toast[0]); close(toast[1]); return AGI_RESULT_FAILURE; } if (efd) { if (pipe(audio)) { ast_log(LOG_WARNING, "unable to create audio pipe: %s\n", strerror(errno)); close(fromast[0]); close(fromast[1]); close(toast[0]); close(toast[1]); return AGI_RESULT_FAILURE; } res = fcntl(audio[1], F_GETFL); if (res > -1) res = fcntl(audio[1], F_SETFL, res | O_NONBLOCK); if (res < 0) { ast_log(LOG_WARNING, "unable to set audio pipe parameters: %s\n", strerror(errno)); close(fromast[0]); close(fromast[1]); close(toast[0]); close(toast[1]); close(audio[0]); close(audio[1]); return AGI_RESULT_FAILURE; } } /* Block SIGHUP during the fork - prevents a race */ sigfillset(&signal_set); pthread_sigmask(SIG_BLOCK, &signal_set, &old_set); pid = fork(); if (pid < 0) { ast_log(LOG_WARNING, "Failed to fork(): %s\n", strerror(errno)); pthread_sigmask(SIG_SETMASK, &old_set, NULL); return AGI_RESULT_FAILURE; } if (!pid) { /* Pass paths to AGI via environmental variables */ setenv("AST_CONFIG_DIR", ast_config_AST_CONFIG_DIR, 1); setenv("AST_CONFIG_FILE", ast_config_AST_CONFIG_FILE, 1); setenv("AST_MODULE_DIR", ast_config_AST_MODULE_DIR, 1); setenv("AST_SPOOL_DIR", ast_config_AST_SPOOL_DIR, 1); setenv("AST_MONITOR_DIR", ast_config_AST_MONITOR_DIR, 1); setenv("AST_VAR_DIR", ast_config_AST_VAR_DIR, 1); setenv("AST_DATA_DIR", ast_config_AST_DATA_DIR, 1); setenv("AST_LOG_DIR", ast_config_AST_LOG_DIR, 1); setenv("AST_AGI_DIR", ast_config_AST_AGI_DIR, 1); setenv("AST_KEY_DIR", ast_config_AST_KEY_DIR, 1); setenv("AST_RUN_DIR", ast_config_AST_RUN_DIR, 1); /* Don't run AGI scripts with realtime priority -- it causes audio stutter */ ast_set_priority(0); /* Redirect stdin and out, provide enhanced audio channel if desired */ dup2(fromast[0], STDIN_FILENO); dup2(toast[1], STDOUT_FILENO); if (efd) { dup2(audio[0], STDERR_FILENO + 1); } else { close(STDERR_FILENO + 1); } /* Before we unblock our signals, return our trapped signals back to the defaults */ signal(SIGHUP, SIG_DFL); signal(SIGCHLD, SIG_DFL); signal(SIGINT, SIG_DFL); signal(SIGURG, SIG_DFL); signal(SIGTERM, SIG_DFL); signal(SIGPIPE, SIG_DFL); signal(SIGXFSZ, SIG_DFL); /* unblock important signal handlers */ if (pthread_sigmask(SIG_UNBLOCK, &signal_set, NULL)) { ast_log(LOG_WARNING, "unable to unblock signals for AGI script: %s\n", strerror(errno)); _exit(1); } /* Close everything but stdin/out/error */ for (x=STDERR_FILENO + 2;x<1024;x++) close(x); /* Execute script */ execv(script, argv); /* Can't use ast_log since FD's are closed */ fprintf(stdout, "verbose \"Failed to execute '%s': %s\" 2\n", script, strerror(errno)); fflush(stdout); _exit(1); } pthread_sigmask(SIG_SETMASK, &old_set, NULL); if (option_verbose > 2) ast_verbose(VERBOSE_PREFIX_3 "Launched AGI Script %s\n", script); fds[0] = toast[0]; fds[1] = fromast[1]; if (efd) { *efd = audio[1]; } /* close what we're not using in the parent */ close(toast[1]); close(fromast[0]); if (efd) close(audio[0]); *opid = pid; return AGI_RESULT_SUCCESS; } static void setup_env(struct ast_channel *chan, char *request, int fd, int enhanced) { /* Print initial environment, with agi_request always being the first thing */ fdprintf(fd, "agi_request: %s\n", request); fdprintf(fd, "agi_channel: %s\n", chan->name); fdprintf(fd, "agi_language: %s\n", chan->language); fdprintf(fd, "agi_type: %s\n", chan->tech->type); fdprintf(fd, "agi_uniqueid: %s\n", chan->uniqueid); /* ANI/DNIS */ fdprintf(fd, "agi_callerid: %s\n", S_OR(chan->cid.cid_num, "unknown")); fdprintf(fd, "agi_calleridname: %s\n", S_OR(chan->cid.cid_name, "unknown")); fdprintf(fd, "agi_callingpres: %d\n", chan->cid.cid_pres); fdprintf(fd, "agi_callingani2: %d\n", chan->cid.cid_ani2); fdprintf(fd, "agi_callington: %d\n", chan->cid.cid_ton); fdprintf(fd, "agi_callingtns: %d\n", chan->cid.cid_tns); fdprintf(fd, "agi_dnid: %s\n", S_OR(chan->cid.cid_dnid, "unknown")); fdprintf(fd, "agi_rdnis: %s\n", S_OR(chan->cid.cid_rdnis, "unknown")); /* Context information */ fdprintf(fd, "agi_context: %s\n", chan->context); fdprintf(fd, "agi_extension: %s\n", chan->exten); fdprintf(fd, "agi_priority: %d\n", chan->priority); fdprintf(fd, "agi_enhanced: %s\n", enhanced ? "1.0" : "0.0"); /* User information */ fdprintf(fd, "agi_accountcode: %s\n", chan->accountcode ? chan->accountcode : ""); /* End with empty return */ fdprintf(fd, "\n"); } static int handle_answer(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int res; res = 0; if (chan->_state != AST_STATE_UP) { /* Answer the chan */ res = ast_answer(chan); } fdprintf(agi->fd, "200 result=%d\n", res); return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE; } static int handle_waitfordigit(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int res; int to; if (argc != 4) return RESULT_SHOWUSAGE; if (sscanf(argv[3], "%d", &to) != 1) return RESULT_SHOWUSAGE; res = ast_waitfordigit_full(chan, to, agi->audio, agi->ctrl); fdprintf(agi->fd, "200 result=%d\n", res); return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE; } static int handle_sendtext(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int res; if (argc != 3) return RESULT_SHOWUSAGE; /* At the moment, the parser (perhaps broken) returns with the last argument PLUS the newline at the end of the input buffer. This probably needs to be fixed, but I wont do that because other stuff may break as a result. The right way would probably be to strip off the trailing newline before parsing, then here, add a newline at the end of the string before sending it to ast_sendtext --DUDE */ res = ast_sendtext(chan, argv[2]); fdprintf(agi->fd, "200 result=%d\n", res); return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE; } static int handle_recvchar(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int res; if (argc != 3) return RESULT_SHOWUSAGE; res = ast_recvchar(chan,atoi(argv[2])); if (res == 0) { fdprintf(agi->fd, "200 result=%d (timeout)\n", res); return RESULT_SUCCESS; } if (res > 0) { fdprintf(agi->fd, "200 result=%d\n", res); return RESULT_SUCCESS; } else { fdprintf(agi->fd, "200 result=%d (hangup)\n", res); return RESULT_FAILURE; } } static int handle_recvtext(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { char *buf; if (argc != 3) return RESULT_SHOWUSAGE; buf = ast_recvtext(chan,atoi(argv[2])); if (buf) { fdprintf(agi->fd, "200 result=1 (%s)\n", buf); free(buf); } else { fdprintf(agi->fd, "200 result=-1\n"); } return RESULT_SUCCESS; } static int handle_tddmode(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int res,x; if (argc != 3) return RESULT_SHOWUSAGE; if (!strncasecmp(argv[2],"on",2)) x = 1; else x = 0; if (!strncasecmp(argv[2],"mate",4)) x = 2; if (!strncasecmp(argv[2],"tdd",3)) x = 1; res = ast_channel_setoption(chan, AST_OPTION_TDD, &x, sizeof(char), 0); if (res != RESULT_SUCCESS) fdprintf(agi->fd, "200 result=0\n"); else fdprintf(agi->fd, "200 result=1\n"); return RESULT_SUCCESS; } static int handle_sendimage(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int res; if (argc != 3) return RESULT_SHOWUSAGE; res = ast_send_image(chan, argv[2]); if (!ast_check_hangup(chan)) res = 0; fdprintf(agi->fd, "200 result=%d\n", res); return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE; } static int handle_controlstreamfile(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int res = 0; int skipms = 3000; char *fwd = NULL; char *rev = NULL; char *pause = NULL; char *stop = NULL; if (argc < 5 || argc > 9) return RESULT_SHOWUSAGE; if (!ast_strlen_zero(argv[4])) stop = argv[4]; else stop = NULL; if ((argc > 5) && (sscanf(argv[5], "%d", &skipms) != 1)) return RESULT_SHOWUSAGE; if (argc > 6 && !ast_strlen_zero(argv[6])) fwd = argv[6]; else fwd = "#"; if (argc > 7 && !ast_strlen_zero(argv[7])) rev = argv[7]; else rev = "*"; if (argc > 8 && !ast_strlen_zero(argv[8])) pause = argv[8]; else pause = NULL; res = ast_control_streamfile(chan, argv[3], fwd, rev, stop, pause, NULL, skipms); fdprintf(agi->fd, "200 result=%d\n", res); return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE; } static int handle_streamfile(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int res; int vres; struct ast_filestream *fs; struct ast_filestream *vfs; long sample_offset = 0; long max_length; char *edigits = ""; if (argc < 4 || argc > 5) return RESULT_SHOWUSAGE; if (argv[3]) edigits = argv[3]; if ((argc > 4) && (sscanf(argv[4], "%ld", &sample_offset) != 1)) return RESULT_SHOWUSAGE; fs = ast_openstream(chan, argv[2], chan->language); if (!fs) { fdprintf(agi->fd, "200 result=%d endpos=%ld\n", 0, sample_offset); return RESULT_SUCCESS; } vfs = ast_openvstream(chan, argv[2], chan->language); if (vfs) ast_log(LOG_DEBUG, "Ooh, found a video stream, too\n"); if (option_verbose > 2) ast_verbose(VERBOSE_PREFIX_3 "Playing '%s' (escape_digits=%s) (sample_offset %ld)\n", argv[2], edigits, sample_offset); ast_seekstream(fs, 0, SEEK_END); max_length = ast_tellstream(fs); ast_seekstream(fs, sample_offset, SEEK_SET); res = ast_applystream(chan, fs); if (vfs) vres = ast_applystream(chan, vfs); ast_playstream(fs); if (vfs) ast_playstream(vfs); res = ast_waitstream_full(chan, argv[3], agi->audio, agi->ctrl); /* this is to check for if ast_waitstream closed the stream, we probably are at * the end of the stream, return that amount, else check for the amount */ sample_offset = (chan->stream) ? ast_tellstream(fs) : max_length; ast_stopstream(chan); if (res == 1) { /* Stop this command, don't print a result line, as there is a new command */ return RESULT_SUCCESS; } fdprintf(agi->fd, "200 result=%d endpos=%ld\n", res, sample_offset); return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE; } /* get option - really similar to the handle_streamfile, but with a timeout */ static int handle_getoption(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int res; int vres; struct ast_filestream *fs; struct ast_filestream *vfs; long sample_offset = 0; long max_length; int timeout = 0; char *edigits = ""; if ( argc < 4 || argc > 5 ) return RESULT_SHOWUSAGE; if ( argv[3] ) edigits = argv[3]; if ( argc == 5 ) timeout = atoi(argv[4]); else if (chan->pbx->dtimeout) { /* by default dtimeout is set to 5sec */ timeout = chan->pbx->dtimeout * 1000; /* in msec */ } fs = ast_openstream(chan, argv[2], chan->language); if (!fs) { fdprintf(agi->fd, "200 result=%d endpos=%ld\n", 0, sample_offset); ast_log(LOG_WARNING, "Unable to open %s\n", argv[2]); return RESULT_SUCCESS; } vfs = ast_openvstream(chan, argv[2], chan->language); if (vfs) ast_log(LOG_DEBUG, "Ooh, found a video stream, too\n"); if (option_verbose > 2) ast_verbose(VERBOSE_PREFIX_3 "Playing '%s' (escape_digits=%s) (timeout %d)\n", argv[2], edigits, timeout); ast_seekstream(fs, 0, SEEK_END); max_length = ast_tellstream(fs); ast_seekstream(fs, sample_offset, SEEK_SET); res = ast_applystream(chan, fs); if (vfs) vres = ast_applystream(chan, vfs); ast_playstream(fs); if (vfs) ast_playstream(vfs); res = ast_waitstream_full(chan, argv[3], agi->audio, agi->ctrl); /* this is to check for if ast_waitstream closed the stream, we probably are at * the end of the stream, return that amount, else check for the amount */ sample_offset = (chan->stream)?ast_tellstream(fs):max_length; ast_stopstream(chan); if (res == 1) { /* Stop this command, don't print a result line, as there is a new command */ return RESULT_SUCCESS; } /* If the user didnt press a key, wait for digitTimeout*/ if (res == 0 ) { res = ast_waitfordigit_full(chan, timeout, agi->audio, agi->ctrl); /* Make sure the new result is in the escape digits of the GET OPTION */ if ( !strchr(edigits,res) ) res=0; } fdprintf(agi->fd, "200 result=%d endpos=%ld\n", res, sample_offset); return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE; } /*--- handle_saynumber: Say number in various language syntaxes ---*/ /* Need to add option for gender here as well. Coders wanted */ /* While waiting, we're sending a (char *) NULL. */ static int handle_saynumber(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int res; int num; if (argc != 4) return RESULT_SHOWUSAGE; if (sscanf(argv[2], "%d", &num) != 1) return RESULT_SHOWUSAGE; res = ast_say_number_full(chan, num, argv[3], chan->language, (char *) NULL, agi->audio, agi->ctrl); if (res == 1) return RESULT_SUCCESS; fdprintf(agi->fd, "200 result=%d\n", res); return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE; } static int handle_saydigits(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int res; int num; if (argc != 4) return RESULT_SHOWUSAGE; if (sscanf(argv[2], "%d", &num) != 1) return RESULT_SHOWUSAGE; res = ast_say_digit_str_full(chan, argv[2], argv[3], chan->language, agi->audio, agi->ctrl); if (res == 1) /* New command */ return RESULT_SUCCESS; fdprintf(agi->fd, "200 result=%d\n", res); return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE; } static int handle_sayalpha(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int res; if (argc != 4) return RESULT_SHOWUSAGE; res = ast_say_character_str_full(chan, argv[2], argv[3], chan->language, agi->audio, agi->ctrl); if (res == 1) /* New command */ return RESULT_SUCCESS; fdprintf(agi->fd, "200 result=%d\n", res); return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE; } static int handle_saydate(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int res; int num; if (argc != 4) return RESULT_SHOWUSAGE; if (sscanf(argv[2], "%d", &num) != 1) return RESULT_SHOWUSAGE; res = ast_say_date(chan, num, argv[3], chan->language); if (res == 1) return RESULT_SUCCESS; fdprintf(agi->fd, "200 result=%d\n", res); return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE; } static int handle_saytime(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int res; int num; if (argc != 4) return RESULT_SHOWUSAGE; if (sscanf(argv[2], "%d", &num) != 1) return RESULT_SHOWUSAGE; res = ast_say_time(chan, num, argv[3], chan->language); if (res == 1) return RESULT_SUCCESS; fdprintf(agi->fd, "200 result=%d\n", res); return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE; } static int handle_saydatetime(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int res=0; time_t unixtime; char *format, *zone=NULL; if (argc < 4) return RESULT_SHOWUSAGE; if (argc > 4) { format = argv[4]; } else { /* XXX this doesn't belong here, but in the 'say' module */ if (!strcasecmp(chan->language, "de")) { format = "A dBY HMS"; } else { format = "ABdY 'digits/at' IMp"; } } if (argc > 5 && !ast_strlen_zero(argv[5])) zone = argv[5]; if (ast_get_time_t(argv[2], &unixtime, 0, NULL)) return RESULT_SHOWUSAGE; res = ast_say_date_with_format(chan, unixtime, argv[3], chan->language, format, zone); if (res == 1) return RESULT_SUCCESS; fdprintf(agi->fd, "200 result=%d\n", res); return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE; } static int handle_sayphonetic(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int res; if (argc != 4) return RESULT_SHOWUSAGE; res = ast_say_phonetic_str_full(chan, argv[2], argv[3], chan->language, agi->audio, agi->ctrl); if (res == 1) /* New command */ return RESULT_SUCCESS; fdprintf(agi->fd, "200 result=%d\n", res); return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE; } static int handle_getdata(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int res; char data[1024]; int max; int timeout; if (argc < 3) return RESULT_SHOWUSAGE; if (argc >= 4) timeout = atoi(argv[3]); else timeout = 0; if (argc >= 5) max = atoi(argv[4]); else max = 1024; res = ast_app_getdata_full(chan, argv[2], data, max, timeout, agi->audio, agi->ctrl); if (res == 2) /* New command */ return RESULT_SUCCESS; else if (res == 1) fdprintf(agi->fd, "200 result=%s (timeout)\n", data); else if (res < 0 ) fdprintf(agi->fd, "200 result=-1\n"); else fdprintf(agi->fd, "200 result=%s\n", data); return RESULT_SUCCESS; } static int handle_setcontext(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { if (argc != 3) return RESULT_SHOWUSAGE; ast_copy_string(chan->context, argv[2], sizeof(chan->context)); fdprintf(agi->fd, "200 result=0\n"); return RESULT_SUCCESS; } static int handle_setextension(struct ast_channel *chan, AGI *agi, int argc, char **argv) { if (argc != 3) return RESULT_SHOWUSAGE; ast_copy_string(chan->exten, argv[2], sizeof(chan->exten)); fdprintf(agi->fd, "200 result=0\n"); return RESULT_SUCCESS; } static int handle_setpriority(struct ast_channel *chan, AGI *agi, int argc, char **argv) { int pri; if (argc != 3) return RESULT_SHOWUSAGE; if (sscanf(argv[2], "%d", &pri) != 1) { if ((pri = ast_findlabel_extension(chan, chan->context, chan->exten, argv[2], chan->cid.cid_num)) < 1) return RESULT_SHOWUSAGE; } ast_explicit_goto(chan, NULL, NULL, pri); fdprintf(agi->fd, "200 result=0\n"); return RESULT_SUCCESS; } static int handle_recordfile(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { struct ast_filestream *fs; struct ast_frame *f; struct timeval start; long sample_offset = 0; int res = 0; int ms; struct ast_dsp *sildet=NULL; /* silence detector dsp */ int totalsilence = 0; int dspsilence = 0; int silence = 0; /* amount of silence to allow */ int gotsilence = 0; /* did we timeout for silence? */ char *silencestr=NULL; int rfmt=0; /* XXX EAGI FIXME XXX */ if (argc < 6) return RESULT_SHOWUSAGE; if (sscanf(argv[5], "%d", &ms) != 1) return RESULT_SHOWUSAGE; if (argc > 6) silencestr = strchr(argv[6],'s'); if ((argc > 7) && (!silencestr)) silencestr = strchr(argv[7],'s'); if ((argc > 8) && (!silencestr)) silencestr = strchr(argv[8],'s'); if (silencestr) { if (strlen(silencestr) > 2) { if ((silencestr[0] == 's') && (silencestr[1] == '=')) { silencestr++; silencestr++; if (silencestr) silence = atoi(silencestr); if (silence > 0) silence *= 1000; } } } if (silence > 0) { rfmt = chan->readformat; res = ast_set_read_format(chan, AST_FORMAT_SLINEAR); if (res < 0) { ast_log(LOG_WARNING, "Unable to set to linear mode, giving up\n"); return -1; } sildet = ast_dsp_new(); if (!sildet) { ast_log(LOG_WARNING, "Unable to create silence detector :(\n"); return -1; } ast_dsp_set_threshold(sildet, 256); } /* backward compatibility, if no offset given, arg[6] would have been * caught below and taken to be a beep, else if it is a digit then it is a * offset */ if ((argc >6) && (sscanf(argv[6], "%ld", &sample_offset) != 1) && (!strchr(argv[6], '='))) res = ast_streamfile(chan, "beep", chan->language); if ((argc > 7) && (!strchr(argv[7], '='))) res = ast_streamfile(chan, "beep", chan->language); if (!res) res = ast_waitstream(chan, argv[4]); if (res) { fdprintf(agi->fd, "200 result=%d (randomerror) endpos=%ld\n", res, sample_offset); } else { fs = ast_writefile(argv[2], argv[3], NULL, O_CREAT | O_WRONLY | (sample_offset ? O_APPEND : 0), 0, 0644); if (!fs) { res = -1; fdprintf(agi->fd, "200 result=%d (writefile)\n", res); if (sildet) ast_dsp_free(sildet); return RESULT_FAILURE; } /* Request a video update */ ast_indicate(chan, AST_CONTROL_VIDUPDATE); chan->stream = fs; ast_applystream(chan,fs); /* really should have checks */ ast_seekstream(fs, sample_offset, SEEK_SET); ast_truncstream(fs); start = ast_tvnow(); while ((ms < 0) || ast_tvdiff_ms(ast_tvnow(), start) < ms) { res = ast_waitfor(chan, -1); if (res < 0) { ast_closestream(fs); fdprintf(agi->fd, "200 result=%d (waitfor) endpos=%ld\n", res,sample_offset); if (sildet) ast_dsp_free(sildet); return RESULT_FAILURE; } f = ast_read(chan); if (!f) { fdprintf(agi->fd, "200 result=%d (hangup) endpos=%ld\n", 0, sample_offset); ast_closestream(fs); if (sildet) ast_dsp_free(sildet); return RESULT_FAILURE; } switch(f->frametype) { case AST_FRAME_DTMF: if (strchr(argv[4], f->subclass)) { /* This is an interrupting chracter, so rewind to chop off any small amount of DTMF that may have been recorded */ ast_stream_rewind(fs, 200); ast_truncstream(fs); sample_offset = ast_tellstream(fs); fdprintf(agi->fd, "200 result=%d (dtmf) endpos=%ld\n", f->subclass, sample_offset); ast_closestream(fs); ast_frfree(f); if (sildet) ast_dsp_free(sildet); return RESULT_SUCCESS; } break; case AST_FRAME_VOICE: ast_writestream(fs, f); /* this is a safe place to check progress since we know that fs * is valid after a write, and it will then have our current * location */ sample_offset = ast_tellstream(fs); if (silence > 0) { dspsilence = 0; ast_dsp_silence(sildet, f, &dspsilence); if (dspsilence) { totalsilence = dspsilence; } else { totalsilence = 0; } if (totalsilence > silence) { /* Ended happily with silence */ gotsilence = 1; break; } } break; case AST_FRAME_VIDEO: ast_writestream(fs, f); default: /* Ignore all other frames */ break; } ast_frfree(f); if (gotsilence) break; } if (gotsilence) { ast_stream_rewind(fs, silence-1000); ast_truncstream(fs); sample_offset = ast_tellstream(fs); } fdprintf(agi->fd, "200 result=%d (timeout) endpos=%ld\n", res, sample_offset); ast_closestream(fs); } if (silence > 0) { res = ast_set_read_format(chan, rfmt); if (res) ast_log(LOG_WARNING, "Unable to restore read format on '%s'\n", chan->name); ast_dsp_free(sildet); } return RESULT_SUCCESS; } static int handle_autohangup(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { int timeout; if (argc != 3) return RESULT_SHOWUSAGE; if (sscanf(argv[2], "%d", &timeout) != 1) return RESULT_SHOWUSAGE; if (timeout < 0) timeout = 0; if (timeout) chan->whentohangup = time(NULL) + timeout; else chan->whentohangup = 0; fdprintf(agi->fd, "200 result=0\n"); return RESULT_SUCCESS; } static int handle_hangup(struct ast_channel *chan, AGI *agi, int argc, char **argv) { struct ast_channel *c; if (argc == 1) { /* no argument: hangup the current channel */ ast_softhangup(chan,AST_SOFTHANGUP_EXPLICIT); fdprintf(agi->fd, "200 result=1\n"); return RESULT_SUCCESS; } else if (argc == 2) { /* one argument: look for info on the specified channel */ c = ast_get_channel_by_name_locked(argv[1]); if (c) { /* we have a matching channel */ ast_softhangup(c,AST_SOFTHANGUP_EXPLICIT); fdprintf(agi->fd, "200 result=1\n"); ast_channel_unlock(c); return RESULT_SUCCESS; } /* if we get this far no channel name matched the argument given */ fdprintf(agi->fd, "200 result=-1\n"); return RESULT_SUCCESS; } else { return RESULT_SHOWUSAGE; } } static int handle_exec(struct ast_channel *chan, AGI *agi, int argc, char **argv) { int res; struct ast_app *app; if (argc < 2) return RESULT_SHOWUSAGE; if (option_verbose > 2) ast_verbose(VERBOSE_PREFIX_3 "AGI Script Executing Application: (%s) Options: (%s)\n", argv[1], argv[2]); app = pbx_findapp(argv[1]); if (app) { res = pbx_exec(chan, app, argv[2]); } else { ast_log(LOG_WARNING, "Could not find application (%s)\n", argv[1]); res = -2; } fdprintf(agi->fd, "200 result=%d\n", res); /* Even though this is wrong, users are depending upon this result. */ return res; } static int handle_setcallerid(struct ast_channel *chan, AGI *agi, int argc, char **argv) { char tmp[256]=""; char *l = NULL, *n = NULL; if (argv[2]) { ast_copy_string(tmp, argv[2], sizeof(tmp)); ast_callerid_parse(tmp, &n, &l); if (l) ast_shrink_phone_number(l); else l = ""; if (!n) n = ""; ast_set_callerid(chan, l, n, NULL); } fdprintf(agi->fd, "200 result=1\n"); return RESULT_SUCCESS; } static int handle_channelstatus(struct ast_channel *chan, AGI *agi, int argc, char **argv) { struct ast_channel *c; if (argc == 2) { /* no argument: supply info on the current channel */ fdprintf(agi->fd, "200 result=%d\n", chan->_state); return RESULT_SUCCESS; } else if (argc == 3) { /* one argument: look for info on the specified channel */ c = ast_get_channel_by_name_locked(argv[2]); if (c) { fdprintf(agi->fd, "200 result=%d\n", c->_state); ast_channel_unlock(c); return RESULT_SUCCESS; } /* if we get this far no channel name matched the argument given */ fdprintf(agi->fd, "200 result=-1\n"); return RESULT_SUCCESS; } else { return RESULT_SHOWUSAGE; } } static int handle_setvariable(struct ast_channel *chan, AGI *agi, int argc, char **argv) { if (argv[3]) pbx_builtin_setvar_helper(chan, argv[2], argv[3]); fdprintf(agi->fd, "200 result=1\n"); return RESULT_SUCCESS; } static int handle_getvariable(struct ast_channel *chan, AGI *agi, int argc, char **argv) { char *ret; char tempstr[1024]; if (argc != 3) return RESULT_SHOWUSAGE; /* check if we want to execute an ast_custom_function */ if (!ast_strlen_zero(argv[2]) && (argv[2][strlen(argv[2]) - 1] == ')')) { ret = ast_func_read(chan, argv[2], tempstr, sizeof(tempstr)) ? NULL : tempstr; } else { pbx_retrieve_variable(chan, argv[2], &ret, tempstr, sizeof(tempstr), NULL); } if (ret) fdprintf(agi->fd, "200 result=1 (%s)\n", ret); else fdprintf(agi->fd, "200 result=0\n"); return RESULT_SUCCESS; } static int handle_getvariablefull(struct ast_channel *chan, AGI *agi, int argc, char **argv) { char tmp[4096] = ""; struct ast_channel *chan2=NULL; if ((argc != 4) && (argc != 5)) return RESULT_SHOWUSAGE; if (argc == 5) { chan2 = ast_get_channel_by_name_locked(argv[4]); } else { chan2 = chan; } if (chan) { /* XXX isn't this chan2 ? */ pbx_substitute_variables_helper(chan2, argv[3], tmp, sizeof(tmp) - 1); fdprintf(agi->fd, "200 result=1 (%s)\n", tmp); } else { fdprintf(agi->fd, "200 result=0\n"); } if (chan2 && (chan2 != chan)) ast_channel_unlock(chan2); return RESULT_SUCCESS; } static int handle_verbose(struct ast_channel *chan, AGI *agi, int argc, char **argv) { int level = 0; char *prefix; if (argc < 2) return RESULT_SHOWUSAGE; if (argv[2]) sscanf(argv[2], "%d", &level); switch (level) { case 4: prefix = VERBOSE_PREFIX_4; break; case 3: prefix = VERBOSE_PREFIX_3; break; case 2: prefix = VERBOSE_PREFIX_2; break; case 1: default: prefix = VERBOSE_PREFIX_1; break; } if (level <= option_verbose) ast_verbose("%s %s: %s\n", prefix, chan->data, argv[1]); fdprintf(agi->fd, "200 result=1\n"); return RESULT_SUCCESS; } static int handle_dbget(struct ast_channel *chan, AGI *agi, int argc, char **argv) { int res; char tmp[256]; if (argc != 4) return RESULT_SHOWUSAGE; res = ast_db_get(argv[2], argv[3], tmp, sizeof(tmp)); if (res) fdprintf(agi->fd, "200 result=0\n"); else fdprintf(agi->fd, "200 result=1 (%s)\n", tmp); return RESULT_SUCCESS; } static int handle_dbput(struct ast_channel *chan, AGI *agi, int argc, char **argv) { int res; if (argc != 5) return RESULT_SHOWUSAGE; res = ast_db_put(argv[2], argv[3], argv[4]); fdprintf(agi->fd, "200 result=%c\n", res ? '0' : '1'); return RESULT_SUCCESS; } static int handle_dbdel(struct ast_channel *chan, AGI *agi, int argc, char **argv) { int res; if (argc != 4) return RESULT_SHOWUSAGE; res = ast_db_del(argv[2], argv[3]); fdprintf(agi->fd, "200 result=%c\n", res ? '0' : '1'); return RESULT_SUCCESS; } static int handle_dbdeltree(struct ast_channel *chan, AGI *agi, int argc, char **argv) { int res; if ((argc < 3) || (argc > 4)) return RESULT_SHOWUSAGE; if (argc == 4) res = ast_db_deltree(argv[2], argv[3]); else res = ast_db_deltree(argv[2], NULL); fdprintf(agi->fd, "200 result=%c\n", res ? '0' : '1'); return RESULT_SUCCESS; } static char debug_usage[] = "Usage: agi debug\n" " Enables dumping of AGI transactions for debugging purposes\n"; static char no_debug_usage[] = "Usage: agi debug off\n" " Disables dumping of AGI transactions for debugging purposes\n"; static int agi_do_debug(int fd, int argc, char *argv[]) { if (argc != 2) return RESULT_SHOWUSAGE; agidebug = 1; ast_cli(fd, "AGI Debugging Enabled\n"); return RESULT_SUCCESS; } static int agi_no_debug_deprecated(int fd, int argc, char *argv[]) { if (argc != 3) return RESULT_SHOWUSAGE; agidebug = 0; ast_cli(fd, "AGI Debugging Disabled\n"); return RESULT_SUCCESS; } static int agi_no_debug(int fd, int argc, char *argv[]) { if (argc != 3) return RESULT_SHOWUSAGE; agidebug = 0; ast_cli(fd, "AGI Debugging Disabled\n"); return RESULT_SUCCESS; } static int handle_noop(struct ast_channel *chan, AGI *agi, int arg, char *argv[]) { fdprintf(agi->fd, "200 result=0\n"); return RESULT_SUCCESS; } static int handle_setmusic(struct ast_channel *chan, AGI *agi, int argc, char *argv[]) { if (!strncasecmp(argv[2], "on", 2)) ast_moh_start(chan, argc > 3 ? argv[3] : NULL, NULL); else if (!strncasecmp(argv[2], "off", 3)) ast_moh_stop(chan); fdprintf(agi->fd, "200 result=0\n"); return RESULT_SUCCESS; } static char usage_setmusic[] = " Usage: SET MUSIC ON \n" " Enables/Disables the music on hold generator. If is\n" " not specified, then the default music on hold class will be used.\n" " Always returns 0.\n"; static char usage_dbput[] = " Usage: DATABASE PUT \n" " Adds or updates an entry in the Asterisk database for a\n" " given family, key, and value.\n" " Returns 1 if successful, 0 otherwise.\n"; static char usage_dbget[] = " Usage: DATABASE GET \n" " Retrieves an entry in the Asterisk database for a\n" " given family and key.\n" " Returns 0 if is not set. Returns 1 if \n" " is set and returns the variable in parentheses.\n" " Example return code: 200 result=1 (testvariable)\n"; static char usage_dbdel[] = " Usage: DATABASE DEL \n" " Deletes an entry in the Asterisk database for a\n" " given family and key.\n" " Returns 1 if successful, 0 otherwise.\n"; static char usage_dbdeltree[] = " Usage: DATABASE DELTREE [keytree]\n" " Deletes a family or specific keytree within a family\n" " in the Asterisk database.\n" " Returns 1 if successful, 0 otherwise.\n"; static char usage_verbose[] = " Usage: VERBOSE \n" " Sends to the console via verbose message system.\n" " is the the verbose level (1-4)\n" " Always returns 1.\n"; static char usage_getvariable[] = " Usage: GET VARIABLE \n" " Returns 0 if is not set. Returns 1 if \n" " is set and returns the variable in parentheses.\n" " example return code: 200 result=1 (testvariable)\n"; static char usage_getvariablefull[] = " Usage: GET FULL VARIABLE []\n" " Returns 0 if is not set or channel does not exist. Returns 1\n" "if is set and returns the variable in parenthesis. Understands\n" "complex variable names and builtin variables, unlike GET VARIABLE.\n" " example return code: 200 result=1 (testvariable)\n"; static char usage_setvariable[] = " Usage: SET VARIABLE \n"; static char usage_channelstatus[] = " Usage: CHANNEL STATUS []\n" " Returns the status of the specified channel.\n" " If no channel name is given the returns the status of the\n" " current channel. Return values:\n" " 0 Channel is down and available\n" " 1 Channel is down, but reserved\n" " 2 Channel is off hook\n" " 3 Digits (or equivalent) have been dialed\n" " 4 Line is ringing\n" " 5 Remote end is ringing\n" " 6 Line is up\n" " 7 Line is busy\n"; static char usage_setcallerid[] = " Usage: SET CALLERID \n" " Changes the callerid of the current channel.\n"; static char usage_exec[] = " Usage: EXEC \n" " Executes with given .\n" " Returns whatever the application returns, or -2 on failure to find application\n"; static char usage_hangup[] = " Usage: HANGUP []\n" " Hangs up the specified channel.\n" " If no channel name is given, hangs up the current channel\n"; static char usage_answer[] = " Usage: ANSWER\n" " Answers channel if not already in answer state. Returns -1 on\n" " channel failure, or 0 if successful.\n"; static char usage_waitfordigit[] = " Usage: WAIT FOR DIGIT \n" " Waits up to 'timeout' milliseconds for channel to receive a DTMF digit.\n" " Returns -1 on channel failure, 0 if no digit is received in the timeout, or\n" " the numerical value of the ascii of the digit if one is received. Use -1\n" " for the timeout value if you desire the call to block indefinitely.\n"; static char usage_sendtext[] = " Usage: SEND TEXT \"\"\n" " Sends the given text on a channel. Most channels do not support the\n" " transmission of text. Returns 0 if text is sent, or if the channel does not\n" " support text transmission. Returns -1 only on error/hangup. Text\n" " consisting of greater than one word should be placed in quotes since the\n" " command only accepts a single argument.\n"; static char usage_recvchar[] = " Usage: RECEIVE CHAR \n" " Receives a character of text on a channel. Specify timeout to be the\n" " maximum time to wait for input in milliseconds, or 0 for infinite. Most channels\n" " do not support the reception of text. Returns the decimal value of the character\n" " if one is received, or 0 if the channel does not support text reception. Returns\n" " -1 only on error/hangup.\n"; static char usage_recvtext[] = " Usage: RECEIVE TEXT \n" " Receives a string of text on a channel. Specify timeout to be the\n" " maximum time to wait for input in milliseconds, or 0 for infinite. Most channels\n" " do not support the reception of text. Returns -1 for failure or 1 for success, and the string in parentheses.\n"; static char usage_tddmode[] = " Usage: TDD MODE \n" " Enable/Disable TDD transmission/reception on a channel. Returns 1 if\n" " successful, or 0 if channel is not TDD-capable.\n"; static char usage_sendimage[] = " Usage: SEND IMAGE \n" " Sends the given image on a channel. Most channels do not support the\n" " transmission of images. Returns 0 if image is sent, or if the channel does not\n" " support image transmission. Returns -1 only on error/hangup. Image names\n" " should not include extensions.\n"; static char usage_streamfile[] = " Usage: STREAM FILE [sample offset]\n" " Send the given file, allowing playback to be interrupted by the given\n" " digits, if any. Use double quotes for the digits if you wish none to be\n" " permitted. If sample offset is provided then the audio will seek to sample\n" " offset before play starts. Returns 0 if playback completes without a digit\n" " being pressed, or the ASCII numerical value of the digit if one was pressed,\n" " or -1 on error or if the channel was disconnected. Remember, the file\n" " extension must not be included in the filename.\n"; static char usage_controlstreamfile[] = " Usage: CONTROL STREAM FILE [skipms] [ffchar] [rewchr] [pausechr]\n" " Send the given file, allowing playback to be controled by the given\n" " digits, if any. Use double quotes for the digits if you wish none to be\n" " permitted. Returns 0 if playback completes without a digit\n" " being pressed, or the ASCII numerical value of the digit if one was pressed,\n" " or -1 on error or if the channel was disconnected. Remember, the file\n" " extension must not be included in the filename.\n\n" " Note: ffchar and rewchar default to * and # respectively.\n"; static char usage_getoption[] = " Usage: GET OPTION [timeout]\n" " Behaves similar to STREAM FILE but used with a timeout option.\n"; static char usage_saynumber[] = " Usage: SAY NUMBER \n" " Say a given number, returning early if any of the given DTMF digits\n" " are received on the channel. Returns 0 if playback completes without a digit\n" " being pressed, or the ASCII numerical value of the digit if one was pressed or\n" " -1 on error/hangup.\n"; static char usage_saydigits[] = " Usage: SAY DIGITS \n" " Say a given digit string, returning early if any of the given DTMF digits\n" " are received on the channel. Returns 0 if playback completes without a digit\n" " being pressed, or the ASCII numerical value of the digit if one was pressed or\n" " -1 on error/hangup.\n"; static char usage_sayalpha[] = " Usage: SAY ALPHA \n" " Say a given character string, returning early if any of the given DTMF digits\n" " are received on the channel. Returns 0 if playback completes without a digit\n" " being pressed, or the ASCII numerical value of the digit if one was pressed or\n" " -1 on error/hangup.\n"; static char usage_saydate[] = " Usage: SAY DATE \n" " Say a given date, returning early if any of the given DTMF digits are\n" " received on the channel. is number of seconds elapsed since 00:00:00\n" " on January 1, 1970, Coordinated Universal Time (UTC). Returns 0 if playback\n" " completes without a digit being pressed, or the ASCII numerical value of the\n" " digit if one was pressed or -1 on error/hangup.\n"; static char usage_saytime[] = " Usage: SAY TIME