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	git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@228233 65c4cc65-6c06-0410-ace0-fbb531ad65f3
		
			
				
	
	
		
			278 lines
		
	
	
		
			7.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			278 lines
		
	
	
		
			7.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * Asterisk -- An open source telephony toolkit.
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 *
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 * Copyright (C) 1999-2006, Digium, Inc.
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 *
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 * Portions Copyright (C) 2005, Anthony Minessale II
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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  Call Detail Record related dialplan functions
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 *
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 * \author Anthony Minessale II 
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 *
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 * \ingroup functions
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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 "asterisk/module.h"
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#include "asterisk/channel.h"
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#include "asterisk/pbx.h"
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#include "asterisk/utils.h"
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#include "asterisk/app.h"
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#include "asterisk/cdr.h"
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/*** DOCUMENTATION
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	<function name="CDR" language="en_US">
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		<synopsis>
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			Gets or sets a CDR variable.
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		</synopsis>	
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		<syntax>
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			<parameter name="name" required="true">
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				<para>CDR field name:</para>
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				<enumlist>
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					<enum name="clid">
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						<para>Caller ID.</para>
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					</enum>
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					<enum name="lastdata">
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						<para>Last application arguments.</para>
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					</enum>
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					<enum name="disposition">
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						<para>ANSWERED, NO ANSWER, BUSY.</para>
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					</enum>
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					<enum name="src">
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						<para>Source.</para>
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					</enum>
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					<enum name="start">
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						<para>Time the call started.</para>
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					</enum>
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					<enum name="amaflags">
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						<para>DOCUMENTATION, BILL, IGNORE, etc.</para>
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					</enum>
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					<enum name="dst">
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						<para>Destination.</para>
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					</enum>
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					<enum name="answer">
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						<para>Time the call was answered.</para>
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					</enum>
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					<enum name="accountcode">
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						<para>The channel's account code.</para>
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					</enum>
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					<enum name="dcontext">
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						<para>Destination context.</para>
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					</enum>
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					<enum name="end">
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						<para>Time the call ended.</para>
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					</enum>
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					<enum name="uniqueid">
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						<para>The channel's unique id.</para>
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					</enum>
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					<enum name="dstchannel">
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						<para>Destination channel.</para>
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					</enum>
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					<enum name="duration">
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						<para>Duration of the call.</para>
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					</enum>
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					<enum name="userfield">
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						<para>The channel's user specified field.</para>
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					</enum>
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					<enum name="lastapp">
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						<para>Last application.</para>
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					</enum>
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					<enum name="billsec">
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						<para>Duration of the call once it was answered.</para>
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					</enum>
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					<enum name="channel">
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						<para>Channel name.</para>
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					</enum>
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					<enum name="sequence">
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						<para>CDR sequence number.</para>
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					</enum>
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				</enumlist>
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			</parameter>
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			<parameter name="options" required="false">
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				<optionlist>
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					<option name="l">
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						<para>Uses the most recent CDR on a channel with multiple records</para>
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					</option>
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					<option name="r">
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						<para>Searches the entire stack of CDRs on the channel.</para>
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					</option>
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					<option name="s">
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						<para>Skips any CDR's that are marked 'LOCKED' due to forkCDR() calls.
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						(on setting/writing CDR vars only)</para>
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					</option>
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					<option name="u">
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						<para>Retrieves the raw, unprocessed value.</para>
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						<para>For example, 'start', 'answer', and 'end' will be retrieved as epoch
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						values, when the <literal>u</literal> option is passed, but formatted as YYYY-MM-DD HH:MM:SS
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						otherwise.  Similarly, disposition and amaflags will return their raw
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						integral values.</para>
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					</option>
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				</optionlist>
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			</parameter>
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		</syntax>
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		<description>
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			<para>All of the CDR field names are read-only, except for <literal>accountcode</literal>,
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			<literal>userfield</literal>, and <literal>amaflags</literal>. You may, however, supply
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			a name not on the above list, and create your own variable, whose value can be changed
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			with this function, and this variable will be stored on the cdr.</para>
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			<note><para>For setting CDR values, the <literal>l</literal> flag does not apply to
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			setting the <literal>accountcode</literal>, <literal>userfield</literal>, or
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			<literal>amaflags</literal>.</para></note>
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			<para>Raw values for <literal>disposition</literal>:</para>
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			<enumlist>
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				<enum name="1">
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					<para>NO ANSWER</para>
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				</enum>
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				<enum name="2">
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					<para>BUSY</para>
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				</enum>
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				<enum name="3">
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					<para>FAILED</para>
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				</enum>
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				<enum name="4">
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					<para>ANSWERED</para>
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				</enum>
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			</enumlist>
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			<para>Raw values for <literal>amaflags</literal>:</para>
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			<enumlist>
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				<enum name="1">
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					<para>OMIT</para>
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				</enum>
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				<enum name="2">
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					<para>BILLING</para>
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				</enum>
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				<enum name="3">
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					<para>DOCUMENTATION</para>
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				</enum>
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			</enumlist>
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			<para>Example: exten => 1,1,Set(CDR(userfield)=test)</para>
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		</description>
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	</function>
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 ***/
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enum cdr_option_flags {
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	OPT_RECURSIVE = (1 << 0),
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	OPT_UNPARSED = (1 << 1),
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	OPT_LAST = (1 << 2),
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	OPT_SKIPLOCKED = (1 << 3),
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};
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AST_APP_OPTIONS(cdr_func_options, {
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	AST_APP_OPTION('l', OPT_LAST),
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	AST_APP_OPTION('r', OPT_RECURSIVE),
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	AST_APP_OPTION('s', OPT_SKIPLOCKED),
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	AST_APP_OPTION('u', OPT_UNPARSED),
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});
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static int cdr_read(struct ast_channel *chan, const char *cmd, char *parse,
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		    char *buf, size_t len)
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{
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	char *ret;
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	struct ast_flags flags = { 0 };
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	struct ast_cdr *cdr = chan ? chan->cdr : NULL;
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	AST_DECLARE_APP_ARGS(args,
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			     AST_APP_ARG(variable);
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			     AST_APP_ARG(options);
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	);
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	if (ast_strlen_zero(parse))
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		return -1;
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	if (!cdr)
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		return -1;
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	AST_STANDARD_APP_ARGS(args, parse);
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	if (!ast_strlen_zero(args.options))
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		ast_app_parse_options(cdr_func_options, &flags, NULL, args.options);
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	if (ast_test_flag(&flags, OPT_LAST))
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		while (cdr->next)
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			cdr = cdr->next;
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	if (ast_test_flag(&flags, OPT_SKIPLOCKED))
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		while (ast_test_flag(cdr, AST_CDR_FLAG_LOCKED) && cdr->next)
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			cdr = cdr->next;
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	ast_cdr_getvar(cdr, args.variable, &ret, buf, len,
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		       ast_test_flag(&flags, OPT_RECURSIVE),
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			   ast_test_flag(&flags, OPT_UNPARSED));
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	return ret ? 0 : -1;
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}
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static int cdr_write(struct ast_channel *chan, const char *cmd, char *parse,
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		     const char *value)
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{
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	struct ast_cdr *cdr = chan ? chan->cdr : NULL;
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	struct ast_flags flags = { 0 };
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	AST_DECLARE_APP_ARGS(args,
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			     AST_APP_ARG(variable);
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			     AST_APP_ARG(options);
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	);
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	if (ast_strlen_zero(parse) || !value || !chan)
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		return -1;
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	if (!cdr)
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		return -1;
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	AST_STANDARD_APP_ARGS(args, parse);
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	if (!ast_strlen_zero(args.options))
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		ast_app_parse_options(cdr_func_options, &flags, NULL, args.options);
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	if (ast_test_flag(&flags, OPT_LAST))
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		while (cdr->next)
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			cdr = cdr->next;
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	if (!strcasecmp(args.variable, "accountcode"))  /* the 'l' flag doesn't apply to setting the accountcode, userfield, or amaflags */
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		ast_cdr_setaccount(chan, value);
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	else if (!strcasecmp(args.variable, "peeraccount"))
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		ast_cdr_setpeeraccount(chan, value);
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	else if (!strcasecmp(args.variable, "userfield"))
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		ast_cdr_setuserfield(chan, value);
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	else if (!strcasecmp(args.variable, "amaflags"))
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		ast_cdr_setamaflags(chan, value);
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	else
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		ast_cdr_setvar(cdr, args.variable, value, ast_test_flag(&flags, OPT_RECURSIVE));
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		/* No need to worry about the u flag, as all fields for which setting
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		 * 'u' would do anything are marked as readonly. */
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	return 0;
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}
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static struct ast_custom_function cdr_function = {
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	.name = "CDR",
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	.read = cdr_read,
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	.write = cdr_write,
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};
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static int unload_module(void)
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{
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	return ast_custom_function_unregister(&cdr_function);
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}
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static int load_module(void)
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{
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	return ast_custom_function_register(&cdr_function);
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Call Detail Record (CDR) dialplan function");
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