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f6764f4722
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@919 65c4cc65-6c06-0410-ace0-fbb531ad65f3
387 lines
11 KiB
C
Executable File
387 lines
11 KiB
C
Executable File
/** @file app_qcall.c
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*
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* Asterisk -- A telephony toolkit for Linux.
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*
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* Call back a party and connect them to a running pbx thread
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*
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* Copyright (C) 1999, Mark Spencer
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*
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* Mark Spencer <markster@linux-support.net>
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License
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*
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* Call a user from a file contained within a queue (/var/spool/asterisk/qcall)
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*
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* The queue is a directory containing files with the call request information
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* as a single line of text as follows:
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*
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* Dialstring Caller-ID Extension Maxsecs [Identifier] [Required-response]
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*
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* Dialstring -- A Dial String (The number to be called) in the
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* format Technology/Number, such IAX/mysys/1234 or Zap/g1/1234
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*
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* Caller-ID -- A Standard nomalized representation of the Caller-ID of
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* the number being dialed (generally 10 digits in the US). Leave as
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* "asreceived" to use the default Caller*ID
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*
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* Extension -- The Extension (optionally Extension@context) that the
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* user should be "transferred" to after acceptance of the call.
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*
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* Maxsecs -- The Maximum time of the call in seconds. Specify 0 for infinite.
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*
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* Identifier -- The "Identifier" of the request. This is used to determine
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* the names of the audio prompt files played. The first prompt, the one that
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* asks for the input, is just the exact string specified as the identifier.
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* The second prompt, the one that is played after the correct input is given,
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* (generally a "thank you" recording), is the specified string with "-ok"
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* added to the end. So, if you specify "foo" as the identifier, your first
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* prompt file that will be played will be "foo" and the second one will be
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* "foo-ok". If omitted no prompt is given
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*
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* Required-Response (Optional) -- Specify a digit string to be used as the
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* acceptance "code" if you desire it to be something other then "1". This
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* can be used to implement some sort of PIN or security system. It may be
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* more then a single character.
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*
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* NOTE: It is important to remember that the process that creates these
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* files needs keep and maintain a write lock (using flock with the LOCK_EX
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* option) when writing these files.
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*
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*/
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#include <asterisk/lock.h>
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#include <asterisk/file.h>
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#include <asterisk/logger.h>
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#include <asterisk/channel.h>
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#include <asterisk/pbx.h>
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#include <asterisk/module.h>
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#include <asterisk/translate.h>
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#include <asterisk/options.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <dirent.h>
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#include <ctype.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/file.h>
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#include "../astconf.h"
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static char qdir[255];
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static char *tdesc = "Call from Queue";
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static pthread_t qcall_thread;
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static int debug = 0;
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STANDARD_LOCAL_USER;
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LOCAL_USER_DECL;
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#define OLDESTOK 14400 /* not any more then this number of secs old */
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#define INITIALONE 1 /* initial wait before the first one in secs */
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#define NEXTONE 600 /* wait before trying it again in secs */
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#define MAXWAITFORANSWER 45000 /* max call time before answer */
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/* define either one or both of these two if your application requires it */
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#if 0
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#define ACCTCODE "SOMETHING" /* Account code */
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#define AMAFLAGS AST_CDR_BILLING /* AMA flags */
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#endif
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/* define this if you want to have a particular CLID display on the user's
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phone when they receive the call */
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#if 0
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#define OURCLID "2564286275" /* The callerid to be displayed when calling */
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#endif
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static void *qcall_do(void *arg);
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static void *qcall(void *ignore)
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{
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pthread_t dialer_thread;
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DIR *dirp;
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FILE *fp;
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struct dirent *dp;
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char fname[80];
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struct stat mystat;
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time_t t;
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void *arg;
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pthread_attr_t attr;
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time(&t);
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if (debug) printf("@@@@ qcall starting at %s",ctime(&t));
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for(;;)
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{
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time(&t);
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dirp = opendir(qdir);
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if (!dirp)
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{
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perror("app_qcall:Cannot open queue directory");
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break;
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}
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while((dp = readdir(dirp)) != NULL)
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{
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if (dp->d_name[0] == '.') continue;
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sprintf(fname,"%s/%s",qdir,dp->d_name);
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if (stat(fname,&mystat) == -1)
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{
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perror("app_qcall:stat");
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fprintf(stderr,"%s\n",fname);
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continue;
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}
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/* if not a regular file, skip it */
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if ((mystat.st_mode & S_IFMT) != S_IFREG) continue;
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/* if not yet .... */
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if (mystat.st_atime == mystat.st_mtime)
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{ /* first time */
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if ((mystat.st_atime + INITIALONE) > t)
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continue;
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}
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else
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{ /* already looked at once */
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if ((mystat.st_atime + NEXTONE) > t) continue;
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}
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/* if too old */
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if (mystat.st_mtime < (t - OLDESTOK))
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{
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/* kill it, its too old */
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unlink(fname);
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continue;
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}
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/* "touch" file's access time */
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fp = fopen(fname,"r");
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if (fp) fclose(fp);
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/* make a copy of the filename string, so that we
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may go on and use the buffer */
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arg = (void *) strdup(fname);
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pthread_attr_init(&attr);
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pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
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if (pthread_create(&dialer_thread,&attr,qcall_do,arg) == -1)
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{
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perror("qcall: Cannot create thread");
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continue;
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}
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}
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closedir(dirp);
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sleep(1);
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}
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pthread_exit(NULL);
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}
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/* single thread with one file (request) to dial */
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static void *qcall_do(void *arg)
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{
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char fname[300],dialstr[300],extstr[300],ident[300],reqinp[300],buf[300];
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char clid[300],*tele,*context;
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FILE *fp;
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int ms = MAXWAITFORANSWER,maxsecs;
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struct ast_channel *channel;
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time_t t;
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/* get the filename from the arg */
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strcpy(fname,(char *)arg);
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free(arg);
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time(&t);
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fp = fopen(fname,"r");
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if (!fp) /* if cannot open request file */
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{
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perror("qcall_do:fopen");
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fprintf(stderr,"%s\n",fname);
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unlink(fname);
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pthread_exit(NULL);
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}
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/* lock the file */
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if (flock(fileno(fp),LOCK_EX) == -1)
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{
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perror("qcall_do:flock");
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fprintf(stderr,"%s\n",fname);
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pthread_exit(NULL);
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}
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strcpy(reqinp,"1"); /* default required input for acknowledgement */
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strcpy(ident, ""); /* default no ident */
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if (fscanf(fp,"%s %s %s %d %s %s",dialstr,clid,
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extstr,&maxsecs,ident,reqinp) < 4)
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{
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fprintf(stderr,"qcall_do:file line invalid in file %s:\n",fname);
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pthread_exit(NULL);
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}
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flock(fileno(fp),LOCK_UN);
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fclose(fp);
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tele = strchr(dialstr,'/');
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if (!tele)
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{
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fprintf(stderr,"qcall_do:Dial number must be in format tech/number\n");
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unlink(fname);
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pthread_exit(NULL);
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}
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*tele++ = 0;
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channel = ast_request(dialstr,AST_FORMAT_SLINEAR,tele);
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if (channel)
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{
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ast_set_read_format(channel,AST_FORMAT_SLINEAR);
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ast_set_write_format(channel,AST_FORMAT_SLINEAR);
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#ifdef OURCLID
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if (channel->callerid)
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free(channel->callerid);
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channel->callerid = strdup(OURCLID);
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if (channel->ani)
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free(channel->ani);
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channel->ani = strdup(OURCLID);
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#endif
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channel->whentohangup = 0;
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channel->appl = "AppQcall";
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channel->data = "(Outgoing Line)";
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if (option_verbose > 2)
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ast_verbose(VERBOSE_PREFIX_3 "Qcall initiating call to %s/%s on %s (%s)\n",
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dialstr,tele,channel->name,fname);
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ast_call(channel,tele,MAXWAITFORANSWER);
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}
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else
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{
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fprintf(stderr,"qcall_do:Sorry unable to obtain channel\n");
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pthread_exit(NULL);
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}
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if (strcasecmp(clid, "asreceived")) {
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if (channel->callerid) free(channel->callerid);
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channel->callerid = NULL;
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if (channel->ani) free(channel->ani);
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channel->ani = NULL;
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}
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if (channel->_state == AST_STATE_UP)
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if (debug) printf("@@@@ Autodial:Line is Up\n");
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if (option_verbose > 2)
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ast_verbose(VERBOSE_PREFIX_3 "Qcall waiting for answer on %s\n",
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channel->name);
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while(ms > 0){
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struct ast_frame *f;
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ms = ast_waitfor(channel,ms);
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f = ast_read(channel);
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if (!f)
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{
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if (debug) printf("@@@@ qcall_do:Hung Up\n");
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unlink(fname);
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break;
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}
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if (f->frametype == AST_FRAME_CONTROL)
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{
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if (f->subclass == AST_CONTROL_HANGUP)
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{
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if (debug) printf("@@@@ qcall_do:Hung Up\n");
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unlink(fname);
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ast_frfree(f);
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break;
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}
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if (f->subclass == AST_CONTROL_ANSWER)
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{
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if (debug) printf("@@@@ qcall_do:Phone Answered\n");
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if (channel->_state == AST_STATE_UP)
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{
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unlink(fname);
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if (option_verbose > 2)
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ast_verbose(VERBOSE_PREFIX_3 "Qcall got answer on %s\n",
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channel->name);
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usleep(1500000);
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if (strlen(ident)) {
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ast_streamfile(channel,ident,0);
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if (ast_readstring(channel,buf,strlen(reqinp),10000,5000,"#"))
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{
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ast_stopstream(channel);
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if (debug) printf("@@@@ qcall_do: timeout or hangup in dtmf read\n");
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ast_frfree(f);
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break;
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}
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ast_stopstream(channel);
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if (strcmp(buf,reqinp)) /* if not match */
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{
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if (debug) printf("@@@@ qcall_do: response (%s) does not match required (%s)\n",buf,reqinp);
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ast_frfree(f);
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break;
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}
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ast_frfree(f);
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}
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/* okay, now we go for it */
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context = strchr(extstr,'@');
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if (!context) context = "default";
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else *context++ = 0;
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if (option_verbose > 2)
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ast_verbose(VERBOSE_PREFIX_3 "Qcall got accept, now putting through to %s@%s on %s\n",
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extstr,context,channel->name);
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if (strlen(ident)) {
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strcat(ident,"-ok");
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/* if file existant, play it */
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if (!ast_streamfile(channel,ident,0))
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{
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ast_waitstream(channel,"");
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ast_stopstream(channel);
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}
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}
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if (strcasecmp(clid, "asreceived")) {
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channel->callerid = strdup(clid);
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channel->ani = strdup(clid);
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}
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channel->language[0] = 0;
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channel->dnid = strdup(extstr);
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#ifdef AMAFLAGS
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channel->amaflags = AMAFLAGS;
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#endif
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#ifdef ACCTCODE
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strcpy(channel->accountcode,ACCTCODE);
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#else
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channel->accountcode[0] = 0;
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#endif
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if (maxsecs) /* if finite length call */
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{
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time(&channel->whentohangup);
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channel->whentohangup += maxsecs;
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}
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strcpy(channel->exten,extstr);
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strcpy(channel->context,context);
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channel->priority = 1;
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printf("Caller ID is %s\n", channel->callerid);
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ast_pbx_run(channel);
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pthread_exit(NULL);
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}
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}
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else if(f->subclass==AST_CONTROL_RINGING)
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if (debug) printf("@@@@ qcall_do:Phone Ringing end\n");
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}
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ast_frfree(f);
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}
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ast_hangup(channel);
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if (debug) printf("@@@@ qcall_do:Hung up channel\n");
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pthread_exit(NULL);
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return NULL;
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}
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int unload_module(void)
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{
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STANDARD_HANGUP_LOCALUSERS;
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return 0;
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}
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int load_module(void)
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{
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snprintf((char *)qdir,sizeof(qdir)-1,"%s/%s",(char *)ast_config_AST_SPOOL_DIR,"qcall");
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mkdir(qdir,0660);
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pthread_create(&qcall_thread,NULL,qcall,NULL);
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return 0;
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}
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char *description(void)
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{
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return tdesc;
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}
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int usecount(void)
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{
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int res;
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STANDARD_USECOUNT(res);
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return res;
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}
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char *key()
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{
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return ASTERISK_GPL_KEY;
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}
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