git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@75200 65c4cc65-6c06-0410-ace0-fbb531ad65f3
804 lines
24 KiB
C
804 lines
24 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2005 Anthony Minessale II (anthmct@yahoo.com)
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* Copyright (C) 2005 - 2006, Digium, Inc.
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*
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* A license has been granted to Digium (via disclaimer) for the use of
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* this code.
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*
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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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* This program is free software, distributed under the terms of
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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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/*! \file
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*
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* \brief ChanSpy: Listen in on any channel.
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*
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* \author Anthony Minessale II <anthmct@yahoo.com>
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*
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* \ingroup applications
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*/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <ctype.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/chanspy.h"
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#include "asterisk/features.h"
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#include "asterisk/options.h"
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#include "asterisk/app.h"
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#include "asterisk/utils.h"
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#include "asterisk/say.h"
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#include "asterisk/pbx.h"
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#include "asterisk/translate.h"
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#include "asterisk/module.h"
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#include "asterisk/lock.h"
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#define AST_NAME_STRLEN 256
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static const char *tdesc = "Listen to a channel, and optionally whisper into it";
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static const char *app_chan = "ChanSpy";
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static const char *desc_chan =
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" ChanSpy([chanprefix][|options]): This application is used to listen to the\n"
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"audio from an Asterisk channel. This includes the audio coming in and\n"
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"out of the channel being spied on. If the 'chanprefix' parameter is specified,\n"
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"only channels beginning with this string will be spied upon.\n"
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" While spying, the following actions may be performed:\n"
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" - Dialing # cycles the volume level.\n"
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" - Dialing * will stop spying and look for another channel to spy on.\n"
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" - Dialing a series of digits followed by # builds a channel name to append\n"
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" to 'chanprefix'. For example, executing ChanSpy(Agent) and then dialing\n"
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" the digits '1234#' while spying will begin spying on the channel\n"
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" 'Agent/1234'.\n"
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" Note: The X option supersedes the three features above in that if a valid\n"
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" single digit extension exists in the correct context ChanSpy will\n"
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" exit to it. This also disables choosing a channel based on 'chanprefix'\n"
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" and a digit sequence.\n"
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" Options:\n"
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" b - Only spy on channels involved in a bridged call.\n"
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" g(grp) - Match only channels where their ${SPYGROUP} variable is set to\n"
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" contain 'grp' in an optional : delimited list.\n"
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" q - Don't play a beep when beginning to spy on a channel, or speak the\n"
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" selected channel name.\n"
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" r[(basename)] - Record the session to the monitor spool directory. An\n"
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" optional base for the filename may be specified. The\n"
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" default is 'chanspy'.\n"
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" v([value]) - Adjust the initial volume in the range from -4 to 4. A\n"
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" negative value refers to a quieter setting.\n"
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" w - Enable 'whisper' mode, so the spying channel can talk to\n"
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" the spied-on channel.\n"
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" W - Enable 'private whisper' mode, so the spying channel can\n"
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" talk to the spied-on channel but cannot listen to that\n"
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" channel.\n"
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" o - Only listen to audio coming from this channel.\n"
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" X - Allow the user to exit ChanSpy to a valid single digit\n"
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" numeric extension in the current context or the context\n"
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" specified by the SPY_EXIT_CONTEXT channel variable. The\n"
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" name of the last channel that was spied on will be stored\n"
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" in the SPY_CHANNEL variable.\n"
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;
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static const char *app_ext = "ExtenSpy";
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static const char *desc_ext =
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" ExtenSpy(exten[@context][|options]): This application is used to listen to the\n"
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"audio from an Asterisk channel. This includes the audio coming in and\n"
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"out of the channel being spied on. Only channels created by outgoing calls for the\n"
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"specified extension will be selected for spying. If the optional context is not\n"
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"supplied, the current channel's context will be used.\n"
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" While spying, the following actions may be performed:\n"
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" - Dialing # cycles the volume level.\n"
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" - Dialing * will stop spying and look for another channel to spy on.\n"
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" Note: The X option superseeds the two features above in that if a valid\n"
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" single digit extension exists in the correct context it ChanSpy will\n"
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" exit to it.\n"
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" Options:\n"
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" b - Only spy on channels involved in a bridged call.\n"
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" g(grp) - Match only channels where their ${SPYGROUP} variable is set to\n"
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" contain 'grp' in an optional : delimited list.\n"
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" q - Don't play a beep when beginning to spy on a channel, or speak the\n"
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" selected channel name.\n"
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" r[(basename)] - Record the session to the monitor spool directory. An\n"
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" optional base for the filename may be specified. The\n"
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" default is 'chanspy'.\n"
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" v([value]) - Adjust the initial volume in the range from -4 to 4. A\n"
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" negative value refers to a quieter setting.\n"
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" w - Enable 'whisper' mode, so the spying channel can talk to\n"
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" the spied-on channel.\n"
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" W - Enable 'private whisper' mode, so the spying channel can\n"
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" talk to the spied-on channel but cannot listen to that\n"
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" channel.\n"
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" o - Only listen to audio coming from this channel.\n"
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" X - Allow the user to exit ChanSpy to a valid single digit\n"
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" numeric extension in the current context or the context\n"
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" specified by the SPY_EXIT_CONTEXT channel variable. The\n"
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" name of the last channel that was spied on will be stored\n"
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" in the SPY_CHANNEL variable.\n"
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;
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enum {
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OPTION_QUIET = (1 << 0), /* Quiet, no announcement */
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OPTION_BRIDGED = (1 << 1), /* Only look at bridged calls */
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OPTION_VOLUME = (1 << 2), /* Specify initial volume */
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OPTION_GROUP = (1 << 3), /* Only look at channels in group */
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OPTION_RECORD = (1 << 4),
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OPTION_WHISPER = (1 << 5),
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OPTION_PRIVATE = (1 << 6), /* Private Whisper mode */
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OPTION_READONLY = (1 << 7), /* Don't mix the two channels */
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OPTION_EXIT = (1 << 8), /* Exit to a valid single digit extension */
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} chanspy_opt_flags;
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enum {
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OPT_ARG_VOLUME = 0,
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OPT_ARG_GROUP,
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OPT_ARG_RECORD,
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OPT_ARG_ARRAY_SIZE,
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} chanspy_opt_args;
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AST_APP_OPTIONS(spy_opts, {
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AST_APP_OPTION('q', OPTION_QUIET),
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AST_APP_OPTION('b', OPTION_BRIDGED),
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AST_APP_OPTION('w', OPTION_WHISPER),
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AST_APP_OPTION('W', OPTION_PRIVATE),
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AST_APP_OPTION_ARG('v', OPTION_VOLUME, OPT_ARG_VOLUME),
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AST_APP_OPTION_ARG('g', OPTION_GROUP, OPT_ARG_GROUP),
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AST_APP_OPTION_ARG('r', OPTION_RECORD, OPT_ARG_RECORD),
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AST_APP_OPTION('o', OPTION_READONLY),
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AST_APP_OPTION('X', OPTION_EXIT),
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});
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struct chanspy_translation_helper {
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/* spy data */
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struct ast_channel_spy spy;
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int fd;
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int volfactor;
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};
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static void *spy_alloc(struct ast_channel *chan, void *data)
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{
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/* just store the data pointer in the channel structure */
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return data;
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}
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static void spy_release(struct ast_channel *chan, void *data)
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{
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/* nothing to do */
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}
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static int spy_generate(struct ast_channel *chan, void *data, int len, int samples)
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{
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struct chanspy_translation_helper *csth = data;
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struct ast_frame *f;
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if (csth->spy.status != CHANSPY_RUNNING)
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/* Channel is already gone more than likely */
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return -1;
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ast_mutex_lock(&csth->spy.lock);
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f = ast_channel_spy_read_frame(&csth->spy, samples);
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ast_mutex_unlock(&csth->spy.lock);
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if (!f)
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return 0;
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if (ast_write(chan, f)) {
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ast_frfree(f);
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return -1;
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}
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if (csth->fd)
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write(csth->fd, f->data, f->datalen);
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ast_frfree(f);
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return 0;
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}
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static struct ast_generator spygen = {
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.alloc = spy_alloc,
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.release = spy_release,
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.generate = spy_generate,
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};
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static int start_spying(struct ast_channel *chan, struct ast_channel *spychan, struct ast_channel_spy *spy)
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{
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int res;
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struct ast_channel *peer;
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ast_log(LOG_NOTICE, "Attaching %s to %s\n", spychan->name, chan->name);
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ast_channel_lock(chan);
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res = ast_channel_spy_add(chan, spy);
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ast_channel_unlock(chan);
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if (!res && ast_test_flag(chan, AST_FLAG_NBRIDGE) && (peer = ast_bridged_channel(chan)))
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ast_softhangup(peer, AST_SOFTHANGUP_UNBRIDGE);
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return res;
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}
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/* Map 'volume' levels from -4 through +4 into
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decibel (dB) settings for channel drivers
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*/
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static signed char volfactor_map[] = {
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-24,
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-18,
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-12,
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-6,
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0,
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6,
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12,
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18,
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24,
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};
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/* attempt to set the desired gain adjustment via the channel driver;
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if successful, clear it out of the csth structure so the
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generator will not attempt to do the adjustment itself
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*/
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static void set_volume(struct ast_channel *chan, struct chanspy_translation_helper *csth)
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{
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signed char volume_adjust = volfactor_map[csth->volfactor + 4];
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if (!ast_channel_setoption(chan, AST_OPTION_TXGAIN, &volume_adjust, sizeof(volume_adjust), 0))
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csth->volfactor = 0;
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csth->spy.read_vol_adjustment = csth->volfactor;
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csth->spy.write_vol_adjustment = csth->volfactor;
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}
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static int channel_spy(struct ast_channel *chan, struct ast_channel *spyee, int *volfactor, int fd,
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const struct ast_flags *flags, char *exitcontext)
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{
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struct chanspy_translation_helper csth;
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int running = 0, res, x = 0;
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char inp[24] = {0};
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char *name;
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struct ast_frame *f;
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struct ast_silence_generator *silgen = NULL;
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if (ast_check_hangup(chan) || ast_check_hangup(spyee))
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return 0;
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name = ast_strdupa(spyee->name);
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if (option_verbose >= 2)
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ast_verbose(VERBOSE_PREFIX_2 "Spying on channel %s\n", name);
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memset(&csth, 0, sizeof(csth));
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ast_set_flag(&csth.spy, CHANSPY_FORMAT_AUDIO);
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ast_set_flag(&csth.spy, CHANSPY_TRIGGER_NONE);
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if (!ast_test_flag(flags, OPTION_READONLY))
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ast_set_flag(&csth.spy, CHANSPY_MIXAUDIO);
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csth.spy.type = "ChanSpy";
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csth.spy.status = CHANSPY_RUNNING;
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csth.spy.read_queue.format = AST_FORMAT_SLINEAR;
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csth.spy.write_queue.format = AST_FORMAT_SLINEAR;
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ast_mutex_init(&csth.spy.lock);
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csth.volfactor = *volfactor;
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set_volume(chan, &csth);
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if (csth.volfactor) {
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ast_set_flag(&csth.spy, CHANSPY_READ_VOLADJUST);
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csth.spy.read_vol_adjustment = csth.volfactor;
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ast_set_flag(&csth.spy, CHANSPY_WRITE_VOLADJUST);
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csth.spy.write_vol_adjustment = csth.volfactor;
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}
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csth.fd = fd;
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if (start_spying(spyee, chan, &csth.spy)) {
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ast_mutex_destroy(&csth.spy.lock);
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return 0;
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}
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if (ast_test_flag(flags, OPTION_WHISPER)) {
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struct ast_filestream *beepstream;
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int old_write_format = 0;
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ast_channel_whisper_start(csth.spy.chan);
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old_write_format = chan->writeformat;
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if ((beepstream = ast_openstream_full(chan, "beep", chan->language, 1))) {
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struct ast_frame *f;
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while ((f = ast_readframe(beepstream))) {
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ast_channel_whisper_feed(csth.spy.chan, f);
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ast_frfree(f);
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}
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ast_closestream(beepstream);
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chan->stream = NULL;
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}
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if (old_write_format)
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ast_set_write_format(chan, old_write_format);
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}
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if (ast_test_flag(flags, OPTION_PRIVATE))
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silgen = ast_channel_start_silence_generator(chan);
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else
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ast_activate_generator(chan, &spygen, &csth);
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/* We can no longer rely on 'spyee' being an actual channel;
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it can be hung up and freed out from under us. However, the
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channel destructor will put NULL into our csth.spy.chan
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field when that happens, so that is our signal that the spyee
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channel has gone away.
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*/
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/* Note: it is very important that the ast_waitfor() be the first
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condition in this expression, so that if we wait for some period
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of time before receiving a frame from our spying channel, we check
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for hangup on the spied-on channel _after_ knowing that a frame
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has arrived, since the spied-on channel could have gone away while
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we were waiting
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*/
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while ((res = ast_waitfor(chan, -1) > -1) &&
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csth.spy.status == CHANSPY_RUNNING &&
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csth.spy.chan) {
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if (!(f = ast_read(chan)) || ast_check_hangup(chan)) {
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running = -1;
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break;
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}
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if (ast_test_flag(flags, OPTION_WHISPER) &&
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(f->frametype == AST_FRAME_VOICE)) {
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ast_channel_whisper_feed(csth.spy.chan, f);
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ast_frfree(f);
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continue;
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}
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res = (f->frametype == AST_FRAME_DTMF) ? f->subclass : 0;
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ast_frfree(f);
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if (!res)
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continue;
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if (x == sizeof(inp))
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x = 0;
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if (res < 0) {
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running = -1;
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break;
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}
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if (ast_test_flag(flags, OPTION_EXIT)) {
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char tmp[2];
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tmp[0] = res;
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tmp[1] = '\0';
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if (!ast_goto_if_exists(chan, exitcontext, tmp, 1)) {
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ast_debug(1, "Got DTMF %c, goto context %s\n", tmp[0], exitcontext);
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pbx_builtin_setvar_helper(chan, "SPY_CHANNEL", name);
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running = -2;
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break;
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} else {
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ast_debug(2, "Exit by single digit did not work in chanspy. Extension %s does not exist in context %s\n", tmp, exitcontext);
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}
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} else if (res >= '0' && res <= '9') {
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inp[x++] = res;
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}
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if (res == '*') {
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running = 0;
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break;
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} else if (res == '#') {
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if (!ast_strlen_zero(inp)) {
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running = atoi(inp);
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break;
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}
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(*volfactor)++;
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if (*volfactor > 4)
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*volfactor = -4;
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if (option_verbose > 2)
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ast_verbose(VERBOSE_PREFIX_3 "Setting spy volume on %s to %d\n", chan->name, *volfactor);
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csth.volfactor = *volfactor;
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set_volume(chan, &csth);
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if (csth.volfactor) {
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ast_set_flag(&csth.spy, CHANSPY_READ_VOLADJUST);
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csth.spy.read_vol_adjustment = csth.volfactor;
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ast_set_flag(&csth.spy, CHANSPY_WRITE_VOLADJUST);
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csth.spy.write_vol_adjustment = csth.volfactor;
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} else {
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ast_clear_flag(&csth.spy, CHANSPY_READ_VOLADJUST);
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ast_clear_flag(&csth.spy, CHANSPY_WRITE_VOLADJUST);
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}
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}
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}
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if (ast_test_flag(flags, OPTION_WHISPER) && csth.spy.chan)
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ast_channel_whisper_stop(csth.spy.chan);
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if (ast_test_flag(flags, OPTION_PRIVATE))
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ast_channel_stop_silence_generator(chan, silgen);
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else
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ast_deactivate_generator(chan);
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csth.spy.status = CHANSPY_DONE;
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/* If a channel still exists on our spy structure then we need to remove ourselves */
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if (csth.spy.chan) {
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ast_channel_lock(csth.spy.chan);
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ast_channel_spy_remove(csth.spy.chan, &csth.spy);
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ast_channel_unlock(csth.spy.chan);
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}
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ast_channel_spy_free(&csth.spy);
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if (option_verbose >= 2)
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ast_verbose(VERBOSE_PREFIX_2 "Done Spying on channel %s\n", name);
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return running;
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}
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static struct ast_channel *next_channel(const struct ast_channel *last, const char *spec,
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const char *exten, const char *context)
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{
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struct ast_channel *this;
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redo:
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if (spec)
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this = ast_walk_channel_by_name_prefix_locked(last, spec, strlen(spec));
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else if (exten)
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this = ast_walk_channel_by_exten_locked(last, exten, context);
|
|
else
|
|
this = ast_channel_walk_locked(last);
|
|
|
|
if (this) {
|
|
ast_channel_unlock(this);
|
|
if (!strncmp(this->name, "Zap/pseudo", 10))
|
|
goto redo;
|
|
}
|
|
|
|
return this;
|
|
}
|
|
|
|
static int common_exec(struct ast_channel *chan, const struct ast_flags *flags,
|
|
int volfactor, const int fd, const char *mygroup, const char *spec,
|
|
const char *exten, const char *context)
|
|
{
|
|
struct ast_channel *peer, *prev, *next;
|
|
char nameprefix[AST_NAME_STRLEN];
|
|
char peer_name[AST_NAME_STRLEN + 5];
|
|
char exitcontext[AST_MAX_CONTEXT] = "";
|
|
signed char zero_volume = 0;
|
|
int waitms;
|
|
int res;
|
|
char *ptr;
|
|
int num;
|
|
|
|
if (ast_test_flag(flags, OPTION_EXIT)) {
|
|
const char *c;
|
|
if ((c = pbx_builtin_getvar_helper(chan, "SPY_EXIT_CONTEXT")))
|
|
ast_copy_string(exitcontext, c, sizeof(exitcontext));
|
|
else if (!ast_strlen_zero(chan->macrocontext))
|
|
ast_copy_string(exitcontext, chan->macrocontext, sizeof(exitcontext));
|
|
else
|
|
ast_copy_string(exitcontext, chan->context, sizeof(exitcontext));
|
|
}
|
|
|
|
if (chan->_state != AST_STATE_UP)
|
|
ast_answer(chan);
|
|
|
|
ast_set_flag(chan, AST_FLAG_SPYING); /* so nobody can spy on us while we are spying */
|
|
|
|
waitms = 100;
|
|
|
|
for (;;) {
|
|
if (!ast_test_flag(flags, OPTION_QUIET)) {
|
|
res = ast_streamfile(chan, "beep", chan->language);
|
|
if (!res)
|
|
res = ast_waitstream(chan, "");
|
|
else if (res < 0) {
|
|
ast_clear_flag(chan, AST_FLAG_SPYING);
|
|
break;
|
|
}
|
|
if (!ast_strlen_zero(exitcontext)) {
|
|
char tmp[2];
|
|
tmp[0] = res;
|
|
tmp[1] = '\0';
|
|
if (!ast_goto_if_exists(chan, exitcontext, tmp, 1))
|
|
goto exit;
|
|
else
|
|
ast_debug(2, "Exit by single digit did not work in chanspy. Extension %s does not exist in context %s\n", tmp, exitcontext);
|
|
}
|
|
}
|
|
|
|
res = ast_waitfordigit(chan, waitms);
|
|
if (res < 0) {
|
|
ast_clear_flag(chan, AST_FLAG_SPYING);
|
|
break;
|
|
}
|
|
if (!ast_strlen_zero(exitcontext)) {
|
|
char tmp[2];
|
|
tmp[0] = res;
|
|
tmp[1] = '\0';
|
|
if (!ast_goto_if_exists(chan, exitcontext, tmp, 1))
|
|
goto exit;
|
|
else
|
|
ast_debug(2, "Exit by single digit did not work in chanspy. Extension %s does not exist in context %s\n", tmp, exitcontext);
|
|
}
|
|
|
|
/* reset for the next loop around, unless overridden later */
|
|
waitms = 100;
|
|
peer = prev = next = NULL;
|
|
|
|
for (peer = next_channel(peer, spec, exten, context);
|
|
peer;
|
|
prev = peer, peer = next ? next : next_channel(peer, spec, exten, context), next = NULL) {
|
|
const char *group;
|
|
int igrp = !mygroup;
|
|
char *groups[25];
|
|
int num_groups = 0;
|
|
char *dup_group;
|
|
int x;
|
|
char *s;
|
|
|
|
if (peer == prev)
|
|
break;
|
|
|
|
if (peer == chan)
|
|
continue;
|
|
|
|
if (ast_test_flag(flags, OPTION_BRIDGED) && !ast_bridged_channel(peer))
|
|
continue;
|
|
|
|
if (ast_check_hangup(peer) || ast_test_flag(peer, AST_FLAG_SPYING))
|
|
continue;
|
|
|
|
if (mygroup) {
|
|
if ((group = pbx_builtin_getvar_helper(peer, "SPYGROUP"))) {
|
|
dup_group = ast_strdupa(group);
|
|
num_groups = ast_app_separate_args(dup_group, ':', groups,
|
|
sizeof(groups) / sizeof(groups[0]));
|
|
}
|
|
|
|
for (x = 0; x < num_groups; x++) {
|
|
if (!strcmp(mygroup, groups[x])) {
|
|
igrp = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!igrp)
|
|
continue;
|
|
|
|
strcpy(peer_name, "spy-");
|
|
strncat(peer_name, peer->name, AST_NAME_STRLEN);
|
|
ptr = strchr(peer_name, '/');
|
|
*ptr++ = '\0';
|
|
|
|
for (s = peer_name; s < ptr; s++)
|
|
*s = tolower(*s);
|
|
|
|
if (!ast_test_flag(flags, OPTION_QUIET)) {
|
|
if (ast_fileexists(peer_name, NULL, NULL) != -1) {
|
|
res = ast_streamfile(chan, peer_name, chan->language);
|
|
if (!res)
|
|
res = ast_waitstream(chan, "");
|
|
if (res)
|
|
break;
|
|
} else
|
|
res = ast_say_character_str(chan, peer_name, "", chan->language);
|
|
if ((num = atoi(ptr)))
|
|
ast_say_digits(chan, atoi(ptr), "", chan->language);
|
|
}
|
|
|
|
waitms = 5000;
|
|
res = channel_spy(chan, peer, &volfactor, fd, flags, exitcontext);
|
|
|
|
if (res == -1) {
|
|
goto exit;
|
|
} else if (res == -2) {
|
|
res = 0;
|
|
goto exit;
|
|
} else if (res > 1 && spec) {
|
|
snprintf(nameprefix, AST_NAME_STRLEN, "%s/%d", spec, res);
|
|
if ((next = ast_get_channel_by_name_prefix_locked(nameprefix, strlen(nameprefix)))) {
|
|
ast_channel_unlock(next);
|
|
} else {
|
|
/* stay on this channel */
|
|
next = peer;
|
|
}
|
|
peer = NULL;
|
|
}
|
|
}
|
|
}
|
|
exit:
|
|
|
|
ast_clear_flag(chan, AST_FLAG_SPYING);
|
|
|
|
ast_channel_setoption(chan, AST_OPTION_TXGAIN, &zero_volume, sizeof(zero_volume), 0);
|
|
|
|
return res;
|
|
}
|
|
|
|
static int chanspy_exec(struct ast_channel *chan, void *data)
|
|
{
|
|
char *options = NULL;
|
|
char *spec = NULL;
|
|
char *argv[2];
|
|
char *mygroup = NULL;
|
|
char *recbase = NULL;
|
|
int fd = 0;
|
|
struct ast_flags flags;
|
|
int oldwf = 0;
|
|
int argc = 0;
|
|
int volfactor = 0;
|
|
int res;
|
|
|
|
data = ast_strdupa(data);
|
|
|
|
if ((argc = ast_app_separate_args(data, '|', argv, sizeof(argv) / sizeof(argv[0])))) {
|
|
spec = argv[0];
|
|
if (argc > 1)
|
|
options = argv[1];
|
|
|
|
if (ast_strlen_zero(spec) || !strcmp(spec, "all"))
|
|
spec = NULL;
|
|
}
|
|
|
|
if (options) {
|
|
char *opts[OPT_ARG_ARRAY_SIZE];
|
|
|
|
ast_app_parse_options(spy_opts, &flags, opts, options);
|
|
if (ast_test_flag(&flags, OPTION_GROUP))
|
|
mygroup = opts[OPT_ARG_GROUP];
|
|
|
|
if (ast_test_flag(&flags, OPTION_RECORD) &&
|
|
!(recbase = opts[OPT_ARG_RECORD]))
|
|
recbase = "chanspy";
|
|
|
|
if (ast_test_flag(&flags, OPTION_VOLUME) && opts[OPT_ARG_VOLUME]) {
|
|
int vol;
|
|
|
|
if ((sscanf(opts[OPT_ARG_VOLUME], "%d", &vol) != 1) || (vol > 4) || (vol < -4))
|
|
ast_log(LOG_NOTICE, "Volume factor must be a number between -4 and 4\n");
|
|
else
|
|
volfactor = vol;
|
|
}
|
|
|
|
if (ast_test_flag(&flags, OPTION_PRIVATE))
|
|
ast_set_flag(&flags, OPTION_WHISPER);
|
|
} else
|
|
ast_clear_flag(&flags, AST_FLAGS_ALL);
|
|
|
|
oldwf = chan->writeformat;
|
|
if (ast_set_write_format(chan, AST_FORMAT_SLINEAR) < 0) {
|
|
ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
|
|
return -1;
|
|
}
|
|
|
|
if (recbase) {
|
|
char filename[512];
|
|
|
|
snprintf(filename, sizeof(filename), "%s/%s.%d.raw", ast_config_AST_MONITOR_DIR, recbase, (int) time(NULL));
|
|
if ((fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, AST_FILE_MODE)) <= 0) {
|
|
ast_log(LOG_WARNING, "Cannot open '%s' for recording\n", filename);
|
|
fd = 0;
|
|
}
|
|
}
|
|
|
|
res = common_exec(chan, &flags, volfactor, fd, mygroup, spec, NULL, NULL);
|
|
|
|
if (fd)
|
|
close(fd);
|
|
|
|
if (oldwf && ast_set_write_format(chan, oldwf) < 0)
|
|
ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
|
|
|
|
return res;
|
|
}
|
|
|
|
static int extenspy_exec(struct ast_channel *chan, void *data)
|
|
{
|
|
char *options = NULL;
|
|
char *exten = NULL;
|
|
char *context = NULL;
|
|
char *argv[2];
|
|
char *mygroup = NULL;
|
|
char *recbase = NULL;
|
|
int fd = 0;
|
|
struct ast_flags flags;
|
|
int oldwf = 0;
|
|
int argc = 0;
|
|
int volfactor = 0;
|
|
int res;
|
|
|
|
data = ast_strdupa(data);
|
|
|
|
if ((argc = ast_app_separate_args(data, '|', argv, sizeof(argv) / sizeof(argv[0])))) {
|
|
context = argv[0];
|
|
if (!ast_strlen_zero(argv[0]))
|
|
exten = strsep(&context, "@");
|
|
if (ast_strlen_zero(context))
|
|
context = ast_strdupa(chan->context);
|
|
if (argc > 1)
|
|
options = argv[1];
|
|
}
|
|
|
|
if (options) {
|
|
char *opts[OPT_ARG_ARRAY_SIZE];
|
|
|
|
ast_app_parse_options(spy_opts, &flags, opts, options);
|
|
if (ast_test_flag(&flags, OPTION_GROUP))
|
|
mygroup = opts[OPT_ARG_GROUP];
|
|
|
|
if (ast_test_flag(&flags, OPTION_RECORD) &&
|
|
!(recbase = opts[OPT_ARG_RECORD]))
|
|
recbase = "chanspy";
|
|
|
|
if (ast_test_flag(&flags, OPTION_VOLUME) && opts[OPT_ARG_VOLUME]) {
|
|
int vol;
|
|
|
|
if ((sscanf(opts[OPT_ARG_VOLUME], "%d", &vol) != 1) || (vol > 4) || (vol < -4))
|
|
ast_log(LOG_NOTICE, "Volume factor must be a number between -4 and 4\n");
|
|
else
|
|
volfactor = vol;
|
|
}
|
|
|
|
if (ast_test_flag(&flags, OPTION_PRIVATE))
|
|
ast_set_flag(&flags, OPTION_WHISPER);
|
|
} else
|
|
ast_clear_flag(&flags, AST_FLAGS_ALL);
|
|
|
|
oldwf = chan->writeformat;
|
|
if (ast_set_write_format(chan, AST_FORMAT_SLINEAR) < 0) {
|
|
ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
|
|
return -1;
|
|
}
|
|
|
|
if (recbase) {
|
|
char filename[512];
|
|
|
|
snprintf(filename, sizeof(filename), "%s/%s.%d.raw", ast_config_AST_MONITOR_DIR, recbase, (int) time(NULL));
|
|
if ((fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, AST_FILE_MODE)) <= 0) {
|
|
ast_log(LOG_WARNING, "Cannot open '%s' for recording\n", filename);
|
|
fd = 0;
|
|
}
|
|
}
|
|
|
|
res = common_exec(chan, &flags, volfactor, fd, mygroup, NULL, exten, context);
|
|
|
|
if (fd)
|
|
close(fd);
|
|
|
|
if (oldwf && ast_set_write_format(chan, oldwf) < 0)
|
|
ast_log(LOG_ERROR, "Could Not Set Write Format.\n");
|
|
|
|
return res;
|
|
}
|
|
|
|
static int unload_module(void)
|
|
{
|
|
int res = 0;
|
|
|
|
res |= ast_unregister_application(app_chan);
|
|
res |= ast_unregister_application(app_ext);
|
|
|
|
return res;
|
|
}
|
|
|
|
static int load_module(void)
|
|
{
|
|
int res = 0;
|
|
|
|
res |= ast_register_application(app_chan, chanspy_exec, tdesc, desc_chan);
|
|
res |= ast_register_application(app_ext, extenspy_exec, tdesc, desc_ext);
|
|
|
|
return res;
|
|
}
|
|
|
|
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Listen to the audio of an active channel");
|