2001-08-25 04:26:20 +00:00
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/*
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2005-09-14 20:46:50 +00:00
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* Asterisk -- An open source telephony toolkit.
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2001-08-25 04:26:20 +00:00
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*
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2005-09-14 20:46:50 +00:00
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* Copyright (C) 1999 - 2005, Digium, Inc.
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2001-08-25 04:26:20 +00:00
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*
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*
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2003-06-15 11:42:48 +00:00
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* Made only slightly more sane by Mark Spencer <markster@digium.com>
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*
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2005-09-14 20:46:50 +00:00
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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2001-08-25 04:26:20 +00:00
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* This program is free software, distributed under the terms of
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2005-09-14 20:46:50 +00:00
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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2005-10-24 20:12:06 +00:00
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/*! \file
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2005-09-14 20:46:50 +00:00
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*
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2005-10-24 20:12:06 +00:00
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* \brief DISA -- Direct Inward System Access Application
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2005-11-06 15:09:47 +00:00
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*
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* \author Jim Dixon <jim@lambdatel.com>
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2005-09-14 20:46:50 +00:00
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*
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2005-11-06 15:09:47 +00:00
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* \ingroup applications
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2001-08-25 04:26:20 +00:00
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*/
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2006-06-07 18:54:56 +00:00
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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2005-06-06 22:39:32 +00:00
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <math.h>
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#include <sys/time.h>
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2005-04-21 06:02:45 +00:00
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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/app.h"
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#include "asterisk/indications.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/ulaw.h"
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#include "asterisk/callerid.h"
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2006-02-01 23:05:28 +00:00
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#include "asterisk/stringfields.h"
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2006-10-03 15:53:07 +00:00
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#include "asterisk/options.h"
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2001-08-25 04:26:20 +00:00
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static char *app = "DISA";
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static char *synopsis = "DISA (Direct Inward System Access)";
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static char *descrip =
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2007-07-31 01:10:47 +00:00
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"DISA(<numeric passcode>[,<context>[,<cid>[,mailbox[,options]]]]) or\n"
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"DISA(<filename>[,,,,options])\n"
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2007-06-11 22:21:28 +00:00
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"The DISA, Direct Inward System Access, application allows someone from \n"
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"outside the telephone switch (PBX) to obtain an \"internal\" system \n"
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"dialtone and to place calls from it as if they were placing a call from \n"
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"within the switch.\n"
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"DISA plays a dialtone. The user enters their numeric passcode, followed by\n"
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"the pound sign (#). If the passcode is correct, the user is then given\n"
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"system dialtone within <context> on which a call may be placed. If the user\n"
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"enters an invalid extension and extension \"i\" exists in the specified\n"
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"context, it will be used.\n"
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"\n"
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"If you need to present a DISA dialtone without entering a password, simply\n"
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"set <passcode> to \"no-password\".\n"
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"\n"
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"Be aware that using this may compromise the security of your PBX.\n"
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"\n"
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"The arguments to this application (in extensions.conf) allow either\n"
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"specification of a single global passcode (that everyone uses), or\n"
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"individual passcodes contained in a file.\n"
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"\n"
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"The file that contains the passcodes (if used) allows a complete\n"
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"specification of all of the same arguments available on the command\n"
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"line, with the sole exception of the options. The file may contain blank\n"
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"lines, or comments starting with \"#\" or \";\".\n"
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"\n"
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"<context> specifies the dialplan context in which the user-entered extension\n"
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"will be matched. If no context is specified, the DISA application defaults\n"
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"the context to \"disa\". Presumably a normal system will have a special\n"
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"context set up for DISA use with some or a lot of restrictions.\n"
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"\n"
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"<cid> specifies a new (different) callerid to be used for this call.\n"
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"\n"
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"<mailbox[@context]> will cause a stutter-dialtone (indication \"dialrecall\")\n"
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"to be used, if the specified mailbox contains any new messages.\n"
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"\n"
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"The following options are available:\n"
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" n - the DISA application will not answer initially.\n"
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" p - the extension entered will be considered complete when a '#' is entered.\n";
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enum {
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NOANSWER_FLAG = (1 << 0),
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POUND_TO_END_FLAG = (1 << 1),
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} option_flags;
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AST_APP_OPTIONS(app_opts, {
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AST_APP_OPTION('n', NOANSWER_FLAG),
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AST_APP_OPTION('p', POUND_TO_END_FLAG),
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});
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2001-08-25 04:26:20 +00:00
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2004-10-31 23:28:42 +00:00
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static void play_dialtone(struct ast_channel *chan, char *mailbox)
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2004-08-28 19:41:18 +00:00
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{
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2006-12-25 06:38:09 +00:00
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const struct ind_tone_zone_sound *ts = NULL;
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2004-10-31 23:28:42 +00:00
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if(ast_app_has_voicemail(mailbox, NULL))
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ts = ast_get_indication_tone(chan->zone, "dialrecall");
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else
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ts = ast_get_indication_tone(chan->zone, "dial");
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2004-08-28 19:41:18 +00:00
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if (ts)
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ast_playtones_start(chan, 0, ts->data, 0);
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else
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ast_tonepair_start(chan, 350, 440, 0, 0);
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}
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2001-08-25 04:26:20 +00:00
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static int disa_exec(struct ast_channel *chan, void *data)
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{
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2006-01-16 18:52:13 +00:00
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int i,j,k,x,did_ignore,special_noanswer;
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2004-10-31 23:28:42 +00:00
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int firstdigittimeout = 20000;
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int digittimeout = 10000;
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2007-06-11 22:21:28 +00:00
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struct ast_flags flags;
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2005-11-15 19:27:18 +00:00
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char *tmp, exten[AST_MAX_EXTENSION],acctcode[20]="";
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2005-11-11 00:53:19 +00:00
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char pwline[256];
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2005-11-15 19:27:18 +00:00
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char ourcidname[256],ourcidnum[256];
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2004-08-28 17:33:43 +00:00
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struct ast_frame *f;
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2005-07-15 23:00:47 +00:00
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struct timeval lastdigittime;
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2002-05-13 22:29:39 +00:00
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int res;
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2004-08-28 17:33:43 +00:00
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time_t rstart;
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2001-08-25 04:26:20 +00:00
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FILE *fp;
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2005-11-15 19:27:18 +00:00
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AST_DECLARE_APP_ARGS(args,
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AST_APP_ARG(passcode);
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AST_APP_ARG(context);
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AST_APP_ARG(cid);
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AST_APP_ARG(mailbox);
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2007-06-11 22:21:28 +00:00
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AST_APP_ARG(options);
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2005-11-15 19:27:18 +00:00
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);
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2001-08-25 04:26:20 +00:00
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2005-10-26 19:48:14 +00:00
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if (ast_strlen_zero(data)) {
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2006-07-15 21:56:58 +00:00
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ast_log(LOG_WARNING, "DISA requires an argument (passcode/passcode file)\n");
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2005-10-19 18:19:02 +00:00
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return -1;
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}
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2004-10-31 23:28:42 +00:00
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if (chan->pbx) {
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firstdigittimeout = chan->pbx->rtimeout*1000;
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digittimeout = chan->pbx->dtimeout*1000;
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}
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2005-10-19 18:19:02 +00:00
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if (ast_set_write_format(chan,AST_FORMAT_ULAW)) {
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2006-01-04 13:49:25 +00:00
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ast_log(LOG_WARNING, "Unable to set write format to Mu-law on %s\n", chan->name);
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2001-08-25 04:26:20 +00:00
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return -1;
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}
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2005-10-19 18:19:02 +00:00
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if (ast_set_read_format(chan,AST_FORMAT_ULAW)) {
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2006-01-04 13:49:25 +00:00
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ast_log(LOG_WARNING, "Unable to set read format to Mu-law on %s\n", chan->name);
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2001-08-25 04:26:20 +00:00
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return -1;
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}
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2005-10-19 18:19:02 +00:00
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2007-06-14 19:39:12 +00:00
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ast_debug(1, "Digittimeout: %d\n", digittimeout);
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ast_debug(1, "Responsetimeout: %d\n", firstdigittimeout);
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2005-10-19 18:19:02 +00:00
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2006-05-10 13:22:15 +00:00
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tmp = ast_strdupa(data);
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2005-10-19 18:19:02 +00:00
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2005-11-15 19:27:18 +00:00
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AST_STANDARD_APP_ARGS(args, tmp);
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if (ast_strlen_zero(args.context))
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2005-11-15 19:40:08 +00:00
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args.context = "disa";
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2005-11-15 19:27:18 +00:00
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if (ast_strlen_zero(args.mailbox))
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2005-11-15 19:40:08 +00:00
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args.mailbox = "";
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2007-06-11 22:21:28 +00:00
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if (!ast_strlen_zero(args.options))
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ast_app_parse_options(app_opts, &flags, NULL, args.options);
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2005-11-15 19:27:18 +00:00
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2007-06-14 19:39:12 +00:00
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ast_debug(1, "Mailbox: %s\n",args.mailbox);
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2006-01-16 18:52:13 +00:00
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special_noanswer = 0;
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2007-06-11 22:21:28 +00:00
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if (ast_test_flag(&flags, NOANSWER_FLAG)) {
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2006-01-16 18:52:13 +00:00
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if (chan->_state != AST_STATE_UP) {
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/* answer */
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ast_answer(chan);
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}
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} else special_noanswer = 1;
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2001-08-25 04:26:20 +00:00
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i = k = x = 0; /* k is 0 for pswd entry, 1 for ext entry */
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2004-09-15 22:06:30 +00:00
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did_ignore = 0;
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2001-08-25 04:26:20 +00:00
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exten[0] = 0;
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2002-11-29 02:14:13 +00:00
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acctcode[0] = 0;
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2001-08-25 04:26:20 +00:00
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/* can we access DISA without password? */
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2004-08-28 17:33:43 +00:00
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2007-06-14 19:39:12 +00:00
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ast_debug(1, "Context: %s\n",args.context);
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2004-08-28 17:33:43 +00:00
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2005-11-15 19:27:18 +00:00
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if (!strcasecmp(args.passcode, "no-password")) {
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2005-03-26 07:08:47 +00:00
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k |= 1; /* We have the password */
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2007-06-14 19:39:12 +00:00
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ast_debug(1, "DISA no-password login success\n");
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2001-08-25 04:26:20 +00:00
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}
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2005-07-15 23:00:47 +00:00
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lastdigittime = ast_tvnow();
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2004-08-28 17:33:43 +00:00
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2005-11-15 19:27:18 +00:00
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play_dialtone(chan, args.mailbox);
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2004-08-28 17:33:43 +00:00
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2005-10-19 18:19:02 +00:00
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for (;;) {
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2001-08-25 04:26:20 +00:00
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/* if outa time, give em reorder */
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2005-07-15 23:00:47 +00:00
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if (ast_tvdiff_ms(ast_tvnow(), lastdigittime) >
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2006-01-04 13:49:25 +00:00
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((k&2) ? digittimeout : firstdigittimeout)) {
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2007-06-14 19:39:12 +00:00
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ast_debug(1,"DISA %s entry timeout on chan %s\n",
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((k&1) ? "extension" : "password"),chan->name);
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2003-06-15 11:42:48 +00:00
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break;
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2001-08-25 04:26:20 +00:00
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}
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2002-05-13 22:29:39 +00:00
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if ((res = ast_waitfor(chan, -1) < 0)) {
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2007-06-14 19:39:12 +00:00
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ast_debug(1, "Waitfor returned %d\n", res);
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2002-05-13 22:29:39 +00:00
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continue;
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2001-08-25 04:26:20 +00:00
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}
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2002-05-13 22:29:39 +00:00
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2001-08-25 04:26:20 +00:00
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f = ast_read(chan);
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2006-01-04 13:49:25 +00:00
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if (f == NULL) {
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2001-08-25 04:26:20 +00:00
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return -1;
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}
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if ((f->frametype == AST_FRAME_CONTROL) &&
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2006-01-04 13:49:25 +00:00
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(f->subclass == AST_CONTROL_HANGUP)) {
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2001-08-25 04:26:20 +00:00
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ast_frfree(f);
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return -1;
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2002-05-13 22:29:39 +00:00
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}
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if (f->frametype == AST_FRAME_VOICE) {
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2004-08-28 17:33:43 +00:00
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ast_frfree(f);
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2002-05-13 22:29:39 +00:00
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continue;
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2001-08-25 04:26:20 +00:00
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}
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2006-01-04 13:49:25 +00:00
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/* if not DTMF, just do it again */
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if (f->frametype != AST_FRAME_DTMF) {
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2001-08-25 04:26:20 +00:00
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ast_frfree(f);
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continue;
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}
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2002-05-13 22:29:39 +00:00
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2001-08-25 04:26:20 +00:00
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j = f->subclass; /* save digit */
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ast_frfree(f);
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2006-01-04 13:49:25 +00:00
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if (i == 0) {
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2005-03-26 07:08:47 +00:00
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k|=2; /* We have the first digit */
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2004-08-28 17:33:43 +00:00
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ast_playtones_stop(chan);
|
2005-03-26 07:08:47 +00:00
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}
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2005-07-15 23:00:47 +00:00
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lastdigittime = ast_tvnow();
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2001-08-25 04:26:20 +00:00
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/* got a DTMF tone */
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2006-01-04 13:49:25 +00:00
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if (i < AST_MAX_EXTENSION) { /* if still valid number of digits */
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if (!(k&1)) { /* if in password state */
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if (j == '#') { /* end of password */
|
2001-08-25 04:26:20 +00:00
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/* see if this is an integer */
|
2006-01-04 13:49:25 +00:00
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if (sscanf(args.passcode,"%d",&j) < 1) { /* nope, it must be a filename */
|
2005-11-15 19:27:18 +00:00
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fp = fopen(args.passcode,"r");
|
2006-01-04 13:49:25 +00:00
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if (!fp) {
|
2005-11-15 19:27:18 +00:00
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ast_log(LOG_WARNING,"DISA password file %s not found on chan %s\n",args.passcode,chan->name);
|
2001-08-25 04:26:20 +00:00
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return -1;
|
2006-01-04 13:49:25 +00:00
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}
|
2005-11-11 00:53:19 +00:00
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pwline[0] = 0;
|
2006-01-04 13:49:25 +00:00
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|
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while(fgets(pwline,sizeof(pwline) - 1,fp)) {
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if (!pwline[0])
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continue;
|
2005-11-11 00:53:19 +00:00
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|
if (pwline[strlen(pwline) - 1] == '\n')
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pwline[strlen(pwline) - 1] = 0;
|
2006-01-04 13:49:25 +00:00
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|
|
if (!pwline[0])
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|
continue;
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|
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/* skip comments */
|
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|
|
if (pwline[0] == '#')
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|
continue;
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|
|
if (pwline[0] == ';')
|
|
|
|
continue;
|
2005-11-15 19:27:18 +00:00
|
|
|
|
|
|
|
AST_STANDARD_APP_ARGS(args, pwline);
|
|
|
|
|
2007-06-14 19:39:12 +00:00
|
|
|
ast_debug(1, "Mailbox: %s\n",args.mailbox);
|
2005-07-07 22:42:06 +00:00
|
|
|
|
2006-01-04 13:49:25 +00:00
|
|
|
/* password must be in valid format (numeric) */
|
|
|
|
if (sscanf(args.passcode,"%d", &j) < 1)
|
|
|
|
continue;
|
|
|
|
/* if we got it */
|
2005-11-15 19:27:18 +00:00
|
|
|
if (!strcmp(exten,args.passcode)) {
|
|
|
|
if (ast_strlen_zero(args.context))
|
2005-11-15 19:40:08 +00:00
|
|
|
args.context = "disa";
|
2005-11-15 19:27:18 +00:00
|
|
|
if (ast_strlen_zero(args.mailbox))
|
2005-11-15 19:40:08 +00:00
|
|
|
args.mailbox = "";
|
2005-11-15 19:27:18 +00:00
|
|
|
break;
|
|
|
|
}
|
2006-01-04 13:49:25 +00:00
|
|
|
}
|
2001-08-25 04:26:20 +00:00
|
|
|
fclose(fp);
|
2006-01-04 13:49:25 +00:00
|
|
|
}
|
|
|
|
/* compare the two */
|
|
|
|
if (strcmp(exten,args.passcode)) {
|
2001-08-25 04:26:20 +00:00
|
|
|
ast_log(LOG_WARNING,"DISA on chan %s got bad password %s\n",chan->name,exten);
|
|
|
|
goto reorder;
|
2001-12-07 22:57:34 +00:00
|
|
|
|
2001-08-25 04:26:20 +00:00
|
|
|
}
|
|
|
|
/* password good, set to dial state */
|
2007-06-14 19:39:12 +00:00
|
|
|
ast_debug(1,"DISA on chan %s password is good\n",chan->name);
|
2005-11-15 19:27:18 +00:00
|
|
|
play_dialtone(chan, args.mailbox);
|
2004-08-28 17:33:43 +00:00
|
|
|
|
2005-03-26 07:08:47 +00:00
|
|
|
k|=1; /* In number mode */
|
2001-08-25 04:26:20 +00:00
|
|
|
i = 0; /* re-set buffer pointer */
|
2001-12-07 22:57:34 +00:00
|
|
|
exten[sizeof(acctcode)] = 0;
|
2005-10-27 02:48:56 +00:00
|
|
|
ast_copy_string(acctcode, exten, sizeof(acctcode));
|
2001-08-25 04:26:20 +00:00
|
|
|
exten[0] = 0;
|
2007-06-14 19:39:12 +00:00
|
|
|
ast_debug(1,"Successful DISA log-in on chan %s\n", chan->name);
|
2001-08-25 04:26:20 +00:00
|
|
|
continue;
|
|
|
|
}
|
|
|
|
}
|
2004-09-15 22:06:30 +00:00
|
|
|
|
2001-08-25 04:26:20 +00:00
|
|
|
exten[i++] = j; /* save digit */
|
|
|
|
exten[i] = 0;
|
2006-01-04 13:49:25 +00:00
|
|
|
if (!(k&1))
|
|
|
|
continue; /* if getting password, continue doing it */
|
|
|
|
/* if this exists */
|
2003-06-15 11:42:48 +00:00
|
|
|
|
2007-06-11 22:21:28 +00:00
|
|
|
/* user wants end of number, remove # */
|
|
|
|
if (ast_test_flag(&flags, POUND_TO_END_FLAG) && j == '#') {
|
|
|
|
exten[--i] = 0;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2005-11-15 19:27:18 +00:00
|
|
|
if (ast_ignore_pattern(args.context, exten)) {
|
2004-10-31 23:28:42 +00:00
|
|
|
play_dialtone(chan, "");
|
2004-09-15 22:06:30 +00:00
|
|
|
did_ignore = 1;
|
|
|
|
} else
|
|
|
|
if (did_ignore) {
|
|
|
|
ast_playtones_stop(chan);
|
|
|
|
did_ignore = 0;
|
|
|
|
}
|
|
|
|
|
2006-01-04 13:49:25 +00:00
|
|
|
/* if can do some more, do it */
|
2005-11-15 19:27:18 +00:00
|
|
|
if (!ast_matchmore_extension(chan,args.context,exten,1, chan->cid.cid_num)) {
|
2003-06-15 11:42:48 +00:00
|
|
|
break;
|
2004-08-28 17:33:43 +00:00
|
|
|
}
|
2003-06-15 11:42:48 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2005-10-13 23:52:42 +00:00
|
|
|
if (k == 3) {
|
|
|
|
int recheck = 0;
|
2005-11-07 04:10:41 +00:00
|
|
|
struct ast_flags flags = { AST_CDR_FLAG_POSTED };
|
2005-10-13 23:52:42 +00:00
|
|
|
|
2005-11-15 19:27:18 +00:00
|
|
|
if (!ast_exists_extension(chan, args.context, exten, 1, chan->cid.cid_num)) {
|
2005-10-23 01:39:40 +00:00
|
|
|
pbx_builtin_setvar_helper(chan, "INVALID_EXTEN", exten);
|
2005-10-13 23:52:42 +00:00
|
|
|
exten[0] = 'i';
|
|
|
|
exten[1] = '\0';
|
|
|
|
recheck = 1;
|
2001-08-25 04:26:20 +00:00
|
|
|
}
|
2005-11-15 19:27:18 +00:00
|
|
|
if (!recheck || ast_exists_extension(chan, args.context, exten, 1, chan->cid.cid_num)) {
|
2005-10-13 23:52:42 +00:00
|
|
|
ast_playtones_stop(chan);
|
|
|
|
/* We're authenticated and have a target extension */
|
2006-01-04 13:49:25 +00:00
|
|
|
if (!ast_strlen_zero(args.cid)) {
|
2005-11-15 19:27:18 +00:00
|
|
|
ast_callerid_split(args.cid, ourcidname, sizeof(ourcidname), ourcidnum, sizeof(ourcidnum));
|
2005-10-13 23:52:42 +00:00
|
|
|
ast_set_callerid(chan, ourcidnum, ourcidname, ourcidnum);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!ast_strlen_zero(acctcode))
|
2006-02-01 23:05:28 +00:00
|
|
|
ast_string_field_set(chan, accountcode, acctcode);
|
2005-09-07 19:13:00 +00:00
|
|
|
|
2006-01-16 18:52:13 +00:00
|
|
|
if (special_noanswer) flags.flags = 0;
|
2005-11-07 04:10:41 +00:00
|
|
|
ast_cdr_reset(chan->cdr, &flags);
|
2005-11-15 19:27:18 +00:00
|
|
|
ast_explicit_goto(chan, args.context, exten, 1);
|
2005-10-13 23:52:42 +00:00
|
|
|
return 0;
|
2005-07-19 23:45:21 +00:00
|
|
|
}
|
2003-06-15 11:42:48 +00:00
|
|
|
}
|
|
|
|
|
2005-10-13 23:52:42 +00:00
|
|
|
/* Received invalid, but no "i" extension exists in the given context */
|
|
|
|
|
2001-08-25 04:26:20 +00:00
|
|
|
reorder:
|
2004-08-28 17:33:43 +00:00
|
|
|
|
|
|
|
ast_indicate(chan,AST_CONTROL_CONGESTION);
|
|
|
|
/* something is invalid, give em reorder for several seconds */
|
|
|
|
time(&rstart);
|
2006-01-04 13:49:25 +00:00
|
|
|
while(time(NULL) < rstart + 10) {
|
2003-06-15 11:42:48 +00:00
|
|
|
if (ast_waitfor(chan, -1) < 0)
|
|
|
|
break;
|
|
|
|
f = ast_read(chan);
|
|
|
|
if (!f)
|
|
|
|
break;
|
|
|
|
ast_frfree(f);
|
2001-08-25 04:26:20 +00:00
|
|
|
}
|
2004-08-28 17:33:43 +00:00
|
|
|
ast_playtones_stop(chan);
|
2003-06-15 11:42:48 +00:00
|
|
|
return -1;
|
2001-08-25 04:26:20 +00:00
|
|
|
}
|
|
|
|
|
2006-08-21 02:11:39 +00:00
|
|
|
static int unload_module(void)
|
2001-08-25 04:26:20 +00:00
|
|
|
{
|
2007-07-16 13:35:20 +00:00
|
|
|
return ast_unregister_application(app);
|
2001-08-25 04:26:20 +00:00
|
|
|
}
|
|
|
|
|
2006-08-21 02:11:39 +00:00
|
|
|
static int load_module(void)
|
2001-08-25 04:26:20 +00:00
|
|
|
{
|
|
|
|
return ast_register_application(app, disa_exec, synopsis, descrip);
|
|
|
|
}
|
|
|
|
|
2006-08-21 02:11:39 +00:00
|
|
|
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "DISA (Direct Inward System Access) Application");
|