/*
 * Asterisk -- An open source telephony toolkit.
 *
 * Copyright (C) 1999 - 2006, Digium, Inc.
 *
 * Mark Spencer <markster@digium.com>
 *
 * See http://www.asterisk.org for more information about
 * the Asterisk project. Please do not directly contact
 * any of the maintainers of this project for assistance;
 * the project provides a web site, mailing lists and IRC
 * channels for your use.
 *
 * This program is free software, distributed under the terms of
 * the GNU General Public License Version 2. See the LICENSE file
 * at the top of the source tree.
 */

/*! \file
 *
 * \brief The Asterisk Management Interface - AMI
 *
 * \author Mark Spencer <markster@digium.com>
 *
 * \extref OpenSSL http://www.openssl.org - for AMI/SSL
 *
 * At the moment this file contains a number of functions, namely:
 *
 * - data structures storing AMI state
 * - AMI-related API functions, used by internal asterisk components
 * - handlers for AMI-related CLI functions
 * - handlers for AMI functions (available through the AMI socket)
 * - the code for the main AMI listener thread and individual session threads
 * - the http handlers invoked for AMI-over-HTTP by the threads in main/http.c
 *
 * \ref amiconf
 */

/*! \addtogroup Group_AMI AMI functions
*/
/*! @{
 Doxygen group */

/*** MODULEINFO
	<support_level>core</support_level>
 ***/

#include "asterisk.h"

ASTERISK_FILE_VERSION(__FILE__, "$Revision: 398060 $")

#include "asterisk/_private.h"
#include "asterisk/paths.h"	/* use various ast_config_AST_* */
#include <ctype.h>
#include <sys/time.h>
#include <signal.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <regex.h>

#include "asterisk/channel.h"
#include "asterisk/file.h"
#include "asterisk/manager.h"
#include "asterisk/module.h"
#include "asterisk/config.h"
#include "asterisk/callerid.h"
#include "asterisk/lock.h"
#include "asterisk/cli.h"
#include "asterisk/app.h"
#include "asterisk/pbx.h"
#include "asterisk/md5.h"
#include "asterisk/acl.h"
#include "asterisk/utils.h"
#include "asterisk/tcptls.h"
#include "asterisk/http.h"
#include "asterisk/ast_version.h"
#include "asterisk/threadstorage.h"
#include "asterisk/linkedlists.h"
#include "asterisk/term.h"
#include "asterisk/astobj2.h"
#include "asterisk/features.h"
#include "asterisk/security_events.h"
#include "asterisk/aoc.h"
#include "asterisk/stringfields.h"

/*** DOCUMENTATION
	<manager name="Ping" language="en_US">
		<synopsis>
			Keepalive command.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
		</syntax>
		<description>
			<para>A 'Ping' action will ellicit a 'Pong' response. Used to keep the
			manager connection open.</para>
		</description>
	</manager>
	<manager name="Events" language="en_US">
		<synopsis>
			Control Event Flow.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="EventMask" required="true">
				<enumlist>
					<enum name="on">
						<para>If all events should be sent.</para>
					</enum>
					<enum name="off">
						<para>If no events should be sent.</para>
					</enum>
					<enum name="system,call,log,...">
						<para>To select which flags events should have to be sent.</para>
					</enum>
				</enumlist>
			</parameter>
		</syntax>
		<description>
			<para>Enable/Disable sending of events to this manager client.</para>
		</description>
	</manager>
	<manager name="Logoff" language="en_US">
		<synopsis>
			Logoff Manager.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
		</syntax>
		<description>
			<para>Logoff the current manager session.</para>
		</description>
	</manager>
	<manager name="Login" language="en_US">
		<synopsis>
			Login Manager.
		</synopsis>
		<syntax>
			<parameter name="ActionID">
				<para>ActionID for this transaction. Will be returned.</para>
			</parameter>
			<parameter name="Username" required="true">
				<para>Username to login with as specified in manager.conf.</para>
			</parameter>
			<parameter name="Secret">
				<para>Secret to login with as specified in manager.conf.</para>
			</parameter>
		</syntax>
		<description>
			<para>Login Manager.</para>
		</description>
	</manager>
	<manager name="Challenge" language="en_US">
		<synopsis>
			Generate Challenge for MD5 Auth.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="AuthType" required="true">
				<para>Digest algorithm to use in the challenge. Valid values are:</para>
				<enumlist>
					<enum name="MD5" />
				</enumlist>
			</parameter>
		</syntax>
		<description>
			<para>Generate a challenge for MD5 authentication.</para>
		</description>
	</manager>
	<manager name="Hangup" language="en_US">
		<synopsis>
			Hangup channel.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Channel" required="true">
				<para>The channel name to be hangup.</para>
			</parameter>
			<parameter name="Cause">
				<para>Numeric hangup cause.</para>
			</parameter>
		</syntax>
		<description>
			<para>Hangup a channel.</para>
		</description>
	</manager>
	<manager name="Status" language="en_US">
		<synopsis>
			List channel status.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Channel" required="true">
				<para>The name of the channel to query for status.</para>
			</parameter>
			<parameter name="Variables">
				<para>Comma <literal>,</literal> separated list of variable to include.</para>
			</parameter>
		</syntax>
		<description>
			<para>Will return the status information of each channel along with the
			value for the specified channel variables.</para>
		</description>
	</manager>
	<manager name="Setvar" language="en_US">
		<synopsis>
			Set a channel variable.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Channel">
				<para>Channel to set variable for.</para>
			</parameter>
			<parameter name="Variable" required="true">
				<para>Variable name.</para>
			</parameter>
			<parameter name="Value" required="true">
				<para>Variable value.</para>
			</parameter>
		</syntax>
		<description>
			<para>Set a global or local channel variable.</para>
			<note>
				<para>If a channel name is not provided then the variable is global.</para>
			</note>
		</description>
	</manager>
	<manager name="Getvar" language="en_US">
		<synopsis>
			Gets a channel variable.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Channel">
				<para>Channel to read variable from.</para>
			</parameter>
			<parameter name="Variable" required="true">
				<para>Variable name.</para>
			</parameter>
		</syntax>
		<description>
			<para>Get the value of a global or local channel variable.</para>
			<note>
				<para>If a channel name is not provided then the variable is global.</para>
			</note>
		</description>
	</manager>
	<manager name="GetConfig" language="en_US">
		<synopsis>
			Retrieve configuration.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Filename" required="true">
				<para>Configuration filename (e.g. <filename>foo.conf</filename>).</para>
			</parameter>
			<parameter name="Category">
				<para>Category in configuration file.</para>
			</parameter>
		</syntax>
		<description>
			<para>This action will dump the contents of a configuration
			file by category and contents or optionally by specified category only.</para>
		</description>
	</manager>
	<manager name="GetConfigJSON" language="en_US">
		<synopsis>
			Retrieve configuration (JSON format).
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Filename" required="true">
				<para>Configuration filename (e.g. <filename>foo.conf</filename>).</para>
			</parameter>
		</syntax>
		<description>
			<para>This action will dump the contents of a configuration file by category
			and contents in JSON format. This only makes sense to be used using rawman over
			the HTTP interface.</para>
		</description>
	</manager>
	<manager name="UpdateConfig" language="en_US">
		<synopsis>
			Update basic configuration.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="SrcFilename" required="true">
				<para>Configuration filename to read (e.g. <filename>foo.conf</filename>).</para>
			</parameter>
			<parameter name="DstFilename" required="true">
				<para>Configuration filename to write (e.g. <filename>foo.conf</filename>)</para>
			</parameter>
			<parameter name="Reload">
				<para>Whether or not a reload should take place (or name of specific module).</para>
			</parameter>
			<parameter name="Action-XXXXXX">
				<para>Action to take.</para>
				<para>X's represent 6 digit number beginning with 000000.</para>
				<enumlist>
					<enum name="NewCat" />
					<enum name="RenameCat" />
					<enum name="DelCat" />
					<enum name="EmptyCat" />
					<enum name="Update" />
					<enum name="Delete" />
					<enum name="Append" />
					<enum name="Insert" />
				</enumlist>
			</parameter>
			<parameter name="Cat-XXXXXX">
				<para>Category to operate on.</para>
				<xi:include xpointer="xpointer(/docs/manager[@name='UpdateConfig']/syntax/parameter[@name='Action-XXXXXX']/para[2])" />
			</parameter>
			<parameter name="Var-XXXXXX">
				<para>Variable to work on.</para>
				<xi:include xpointer="xpointer(/docs/manager[@name='UpdateConfig']/syntax/parameter[@name='Action-XXXXXX']/para[2])" />
			</parameter>
			<parameter name="Value-XXXXXX">
				<para>Value to work on.</para>
				<xi:include xpointer="xpointer(/docs/manager[@name='UpdateConfig']/syntax/parameter[@name='Action-XXXXXX']/para[2])" />
			</parameter>
			<parameter name="Match-XXXXXX">
				<para>Extra match required to match line.</para>
				<xi:include xpointer="xpointer(/docs/manager[@name='UpdateConfig']/syntax/parameter[@name='Action-XXXXXX']/para[2])" />
			</parameter>
			<parameter name="Line-XXXXXX">
				<para>Line in category to operate on (used with delete and insert actions).</para>
				<xi:include xpointer="xpointer(/docs/manager[@name='UpdateConfig']/syntax/parameter[@name='Action-XXXXXX']/para[2])" />
			</parameter>
		</syntax>
		<description>
			<para>This action will modify, create, or delete configuration elements
			in Asterisk configuration files.</para>
		</description>
	</manager>
	<manager name="CreateConfig" language="en_US">
		<synopsis>
			Creates an empty file in the configuration directory.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Filename" required="true">
				<para>The configuration filename to create (e.g. <filename>foo.conf</filename>).</para>
			</parameter>
		</syntax>
		<description>
			<para>This action will create an empty file in the configuration
			directory. This action is intended to be used before an UpdateConfig
			action.</para>
		</description>
	</manager>
	<manager name="ListCategories" language="en_US">
		<synopsis>
			List categories in configuration file.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Filename" required="true">
				<para>Configuration filename (e.g. <filename>foo.conf</filename>).</para>
			</parameter>
		</syntax>
		<description>
			<para>This action will dump the categories in a given file.</para>
		</description>
	</manager>
	<manager name="Redirect" language="en_US">
		<synopsis>
			Redirect (transfer) a call.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Channel" required="true">
				<para>Channel to redirect.</para>
			</parameter>
			<parameter name="ExtraChannel">
				<para>Second call leg to transfer (optional).</para>
			</parameter>
			<parameter name="Exten" required="true">
				<para>Extension to transfer to.</para>
			</parameter>
			<parameter name="ExtraExten">
				<para>Extension to transfer extrachannel to (optional).</para>
			</parameter>
			<parameter name="Context" required="true">
				<para>Context to transfer to.</para>
			</parameter>
			<parameter name="ExtraContext">
				<para>Context to transfer extrachannel to (optional).</para>
			</parameter>
			<parameter name="Priority" required="true">
				<para>Priority to transfer to.</para>
			</parameter>
			<parameter name="ExtraPriority">
				<para>Priority to transfer extrachannel to (optional).</para>
			</parameter>
		</syntax>
		<description>
			<para>Redirect (transfer) a call.</para>
		</description>
	</manager>
	<manager name="Atxfer" language="en_US">
		<synopsis>
			Attended transfer.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Channel" required="true">
				<para>Transferer's channel.</para>
			</parameter>
			<parameter name="Exten" required="true">
				<para>Extension to transfer to.</para>
			</parameter>
			<parameter name="Context" required="true">
				<para>Context to transfer to.</para>
			</parameter>
			<parameter name="Priority" required="true">
				<para>Priority to transfer to.</para>
			</parameter>
		</syntax>
		<description>
			<para>Attended transfer.</para>
		</description>
	</manager>
	<manager name="Originate" language="en_US">
		<synopsis>
			Originate a call.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Channel" required="true">
				<para>Channel name to call.</para>
			</parameter>
			<parameter name="Exten">
				<para>Extension to use (requires <literal>Context</literal> and
				<literal>Priority</literal>)</para>
			</parameter>
			<parameter name="Context">
				<para>Context to use (requires <literal>Exten</literal> and
				<literal>Priority</literal>)</para>
			</parameter>
			<parameter name="Priority">
				<para>Priority to use (requires <literal>Exten</literal> and
				<literal>Context</literal>)</para>
			</parameter>
			<parameter name="Application">
				<para>Application to execute.</para>
			</parameter>
			<parameter name="Data">
				<para>Data to use (requires <literal>Application</literal>).</para>
			</parameter>
			<parameter name="Timeout" default="30000">
				<para>How long to wait for call to be answered (in ms.).</para>
			</parameter>
			<parameter name="CallerID">
				<para>Caller ID to be set on the outgoing channel.</para>
			</parameter>
			<parameter name="Variable">
				<para>Channel variable to set, multiple Variable: headers are allowed.</para>
			</parameter>
			<parameter name="Account">
				<para>Account code.</para>
			</parameter>
			<parameter name="Async">
				<para>Set to <literal>true</literal> for fast origination.</para>
			</parameter>
			<parameter name="Codecs">
				<para>Comma-separated list of codecs to use for this call.</para>
			</parameter>
		</syntax>
		<description>
			<para>Generates an outgoing call to a
			<replaceable>Extension</replaceable>/<replaceable>Context</replaceable>/<replaceable>Priority</replaceable>
			or <replaceable>Application</replaceable>/<replaceable>Data</replaceable></para>
		</description>
	</manager>
	<manager name="Command" language="en_US">
		<synopsis>
			Execute Asterisk CLI Command.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Command" required="true">
				<para>Asterisk CLI command to run.</para>
			</parameter>
		</syntax>
		<description>
			<para>Run a CLI command.</para>
		</description>
	</manager>
	<manager name="ExtensionState" language="en_US">
		<synopsis>
			Check Extension Status.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Exten" required="true">
				<para>Extension to check state on.</para>
			</parameter>
			<parameter name="Context" required="true">
				<para>Context for extension.</para>
			</parameter>
		</syntax>
		<description>
			<para>Report the extension state for given extension. If the extension has a hint,
			will use devicestate to check the status of the device connected to the extension.</para>
			<para>Will return an <literal>Extension Status</literal> message. The response will include
			the hint for the extension and the status.</para>
		</description>
	</manager>
	<manager name="AbsoluteTimeout" language="en_US">
		<synopsis>
			Set absolute timeout.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Channel" required="true">
				<para>Channel name to hangup.</para>
			</parameter>
			<parameter name="Timeout" required="true">
				<para>Maximum duration of the call (sec).</para>
			</parameter>
		</syntax>
		<description>
			<para>Hangup a channel after a certain time. Acknowledges set time with
			<literal>Timeout Set</literal> message.</para>
		</description>
	</manager>
	<manager name="MailboxStatus" language="en_US">
		<synopsis>
			Check mailbox.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Mailbox" required="true">
				<para>Full mailbox ID <replaceable>mailbox</replaceable>@<replaceable>vm-context</replaceable>.</para>
			</parameter>
		</syntax>
		<description>
			<para>Checks a voicemail account for status.</para>
			<para>Returns whether there are messages waiting.</para>
			<para>Message: Mailbox Status.</para>
			<para>Mailbox: <replaceable>mailboxid</replaceable>.</para>
			<para>Waiting: <literal>0</literal> if messages waiting, <literal>1</literal>
			if no messages waiting.</para>
		</description>
	</manager>
	<manager name="MailboxCount" language="en_US">
		<synopsis>
			Check Mailbox Message Count.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Mailbox" required="true">
				<para>Full mailbox ID <replaceable>mailbox</replaceable>@<replaceable>vm-context</replaceable>.</para>
			</parameter>
		</syntax>
		<description>
			<para>Checks a voicemail account for new messages.</para>
			<para>Returns number of urgent, new and old messages.</para>
			<para>Message: Mailbox Message Count</para>
			<para>Mailbox: <replaceable>mailboxid</replaceable></para>
			<para>UrgentMessages: <replaceable>count</replaceable></para>
			<para>NewMessages: <replaceable>count</replaceable></para>
			<para>OldMessages: <replaceable>count</replaceable></para>
		</description>
	</manager>
	<manager name="ListCommands" language="en_US">
		<synopsis>
			List available manager commands.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
		</syntax>
		<description>
			<para>Returns the action name and synopsis for every action that
			is available to the user.</para>
		</description>
	</manager>
	<manager name="SendText" language="en_US">
		<synopsis>
			Send text message to channel.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Channel" required="true">
				<para>Channel to send message to.</para>
			</parameter>
			<parameter name="Message" required="true">
				<para>Message to send.</para>
			</parameter>
		</syntax>
		<description>
			<para>Sends A Text Message to a channel while in a call.</para>
		</description>
	</manager>
	<manager name="UserEvent" language="en_US">
		<synopsis>
			Send an arbitrary event.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="UserEvent" required="true">
				<para>Event string to send.</para>
			</parameter>
			<parameter name="Header1">
				<para>Content1.</para>
			</parameter>
			<parameter name="HeaderN">
				<para>ContentN.</para>
			</parameter>
		</syntax>
		<description>
			<para>Send an event to manager sessions.</para>
		</description>
	</manager>
	<manager name="WaitEvent" language="en_US">
		<synopsis>
			Wait for an event to occur.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Timeout" required="true">
				<para>Maximum time (in seconds) to wait for events, <literal>-1</literal> means forever.</para>
			</parameter>
		</syntax>
		<description>
			<para>This action will ellicit a <literal>Success</literal> response. Whenever
			a manager event is queued. Once WaitEvent has been called on an HTTP manager
			session, events will be generated and queued.</para>
		</description>
	</manager>
	<manager name="CoreSettings" language="en_US">
		<synopsis>
			Show PBX core settings (version etc).
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
		</syntax>
		<description>
			<para>Query for Core PBX settings.</para>
		</description>
	</manager>
	<manager name="CoreStatus" language="en_US">
		<synopsis>
			Show PBX core status variables.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
		</syntax>
		<description>
			<para>Query for Core PBX status.</para>
		</description>
	</manager>
	<manager name="Reload" language="en_US">
		<synopsis>
			Send a reload event.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Module">
				<para>Name of the module to reload.</para>
			</parameter>
		</syntax>
		<description>
			<para>Send a reload event.</para>
		</description>
	</manager>
	<manager name="CoreShowChannels" language="en_US">
		<synopsis>
			List currently active channels.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
		</syntax>
		<description>
			<para>List currently defined channels and some information about them.</para>
		</description>
	</manager>
	<manager name="ModuleLoad" language="en_US">
		<synopsis>
			Module management.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Module">
				<para>Asterisk module name (including .so extension) or subsystem identifier:</para>
				<enumlist>
					<enum name="cdr" />
					<enum name="dnsmgr" />
					<enum name="extconfig" />
					<enum name="enum" />
					<enum name="manager" />
					<enum name="http" />
					<enum name="logger" />
					<enum name="features" />
					<enum name="dsp" />
					<enum name="udptl" />
					<enum name="indications" />
					<enum name="cel" />
					<enum name="plc" />
				</enumlist>
			</parameter>
			<parameter name="LoadType" required="true">
				<para>The operation to be done on module. Subsystem identifiers may only
				be reloaded.</para>
				<enumlist>
					<enum name="load" />
					<enum name="unload" />
					<enum name="reload" />
				</enumlist>
				<para>If no module is specified for a <literal>reload</literal> loadtype,
				all modules are reloaded.</para>
			</parameter>
		</syntax>
		<description>
			<para>Loads, unloads or reloads an Asterisk module in a running system.</para>
		</description>
	</manager>
	<manager name="ModuleCheck" language="en_US">
		<synopsis>
			Check if module is loaded.
		</synopsis>
		<syntax>
			<parameter name="Module" required="true">
				<para>Asterisk module name (not including extension).</para>
			</parameter>
		</syntax>
		<description>
			<para>Checks if Asterisk module is loaded. Will return Success/Failure.
			For success returns, the module revision number is included.</para>
		</description>
	</manager>
	<manager name="AOCMessage" language="en_US">
		<synopsis>
			Generate an Advice of Charge message on a channel.
		</synopsis>
		<syntax>
			<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
			<parameter name="Channel" required="true">
				<para>Channel name to generate the AOC message on.</para>
			</parameter>
			<parameter name="ChannelPrefix">
				<para>Partial channel prefix.  By using this option one can match the beginning part
				of a channel name without having to put the entire name in.  For example
				if a channel name is SIP/snom-00000001 and this value is set to SIP/snom, then
				that channel matches and the message will be sent.  Note however that only
				the first matched channel has the message sent on it. </para>
			</parameter>
			<parameter name="MsgType" required="true">
				<para>Defines what type of AOC message to create, AOC-D or AOC-E</para>
				<enumlist>
					<enum name="D" />
					<enum name="E" />
				</enumlist>
			</parameter>
			<parameter name="ChargeType" required="true">
				<para>Defines what kind of charge this message represents.</para>
				<enumlist>
					<enum name="NA" />
					<enum name="FREE" />
					<enum name="Currency" />
					<enum name="Unit" />
				</enumlist>
			</parameter>
			<parameter name="UnitAmount(0)">
				<para>This represents the amount of units charged. The ETSI AOC standard specifies that
				this value along with the optional UnitType value are entries in a list.  To accommodate this
				these values take an index value starting at 0 which can be used to generate this list of
				unit entries.  For Example, If two unit entires were required this could be achieved by setting the
				paramter UnitAmount(0)=1234 and UnitAmount(1)=5678.  Note that UnitAmount at index 0 is
				required when ChargeType=Unit, all other entries in the list are optional.
				</para>
			</parameter>
			<parameter name="UnitType(0)">
				<para>Defines the type of unit.  ETSI AOC standard specifies this as an integer
				value between 1 and 16, but this value is left open to accept any positive
				integer.  Like the UnitAmount parameter, this value represents a list entry
				and has an index parameter that starts at 0.
				</para>
			</parameter>
			<parameter name="CurrencyName">
				<para>Specifies the currency's name.  Note that this value is truncated after 10 characters.</para>
			</parameter>
			<parameter name="CurrencyAmount">
				<para>Specifies the charge unit amount as a positive integer.  This value is required
				when ChargeType==Currency.</para>
			</parameter>
			<parameter name="CurrencyMultiplier">
				<para>Specifies the currency multiplier.  This value is required when ChargeType==Currency.</para>
				<enumlist>
					<enum name="OneThousandth" />
					<enum name="OneHundredth" />
					<enum name="OneTenth" />
					<enum name="One" />
					<enum name="Ten" />
					<enum name="Hundred" />
					<enum name="Thousand" />
				</enumlist>
			</parameter>
			<parameter name="TotalType" default="Total">
				<para>Defines what kind of AOC-D total is represented.</para>
				<enumlist>
					<enum name="Total" />
					<enum name="SubTotal" />
				</enumlist>
			</parameter>
			<parameter name="AOCBillingId">
				<para>Represents a billing ID associated with an AOC-D or AOC-E message. Note
				that only the first 3 items of the enum are valid AOC-D billing IDs</para>
				<enumlist>
					<enum name="Normal" />
					<enum name="ReverseCharge" />
					<enum name="CreditCard" />
					<enum name="CallFwdUnconditional" />
					<enum name="CallFwdBusy" />
					<enum name="CallFwdNoReply" />
					<enum name="CallDeflection" />
					<enum name="CallTransfer" />
				</enumlist>
			</parameter>
			<parameter name="ChargingAssociationId">
				<para>Charging association identifier.  This is optional for AOC-E and can be
				set to any value between -32768 and 32767</para>
			</parameter>
			<parameter name="ChargingAssociationNumber">
				<para>Represents the charging association party number.  This value is optional
				for AOC-E.</para>
			</parameter>
			<parameter name="ChargingAssociationPlan">
				<para>Integer representing the charging plan associated with the ChargingAssociationNumber.
				The value is bits 7 through 1 of the Q.931 octet containing the type-of-number and
				numbering-plan-identification fields.</para>
			</parameter>
		</syntax>
		<description>
			<para>Generates an AOC-D or AOC-E message on a channel.</para>
		</description>
	</manager>
 ***/

enum error_type {
	UNKNOWN_ACTION = 1,
	UNKNOWN_CATEGORY,
	UNSPECIFIED_CATEGORY,
	UNSPECIFIED_ARGUMENT,
	FAILURE_ALLOCATION,
	FAILURE_NEWCAT,
	FAILURE_DELCAT,
	FAILURE_EMPTYCAT,
	FAILURE_UPDATE,
	FAILURE_DELETE,
	FAILURE_APPEND
};


/*!
 * Linked list of events.
 * Global events are appended to the list by append_event().
 * The usecount is the number of stored pointers to the element,
 * excluding the list pointers. So an element that is only in
 * the list has a usecount of 0, not 1.
 *
 * Clients have a pointer to the last event processed, and for each
 * of these clients we track the usecount of the elements.
 * If we have a pointer to an entry in the list, it is safe to navigate
 * it forward because elements will not be deleted, but only appended.
 * The worst that can happen is seeing the pointer still NULL.
 *
 * When the usecount of an element drops to 0, and the element is the
 * first in the list, we can remove it. Removal is done within the
 * main thread, which is woken up for the purpose.
 *
 * For simplicity of implementation, we make sure the list is never empty.
 */
struct eventqent {
	int usecount;		/*!< # of clients who still need the event */
	int category;
	unsigned int seq;	/*!< sequence number */
	struct timeval tv;  /*!< When event was allocated */
	AST_RWLIST_ENTRY(eventqent) eq_next;
	char eventdata[1];	/*!< really variable size, allocated by append_event() */
};

static AST_RWLIST_HEAD_STATIC(all_events, eventqent);

static const int DEFAULT_ENABLED			= 0;	/*!< Default setting for manager to be enabled */
static const int DEFAULT_WEBENABLED			= 0;	/*!< Default setting for the web interface to be enabled */
static const int DEFAULT_BLOCKSOCKETS		= 0;	/*!< Default setting for block-sockets */
static const int DEFAULT_DISPLAYCONNECTS	= 1;	/*!< Default setting for displaying manager connections */
static const int DEFAULT_TIMESTAMPEVENTS	= 0;	/*!< Default setting for timestampevents */	
static const int DEFAULT_HTTPTIMEOUT 		= 60;	/*!< Default manager http timeout */
static const int DEFAULT_BROKENEVENTSACTION	= 0;	/*!< Default setting for brokeneventsaction */
static const int DEFAULT_AUTHTIMEOUT		= 30;	/*!< Default setting for authtimeout */
static const int DEFAULT_AUTHLIMIT		= 50;	/*!< Default setting for authlimit */
static const int DEFAULT_MANAGERDEBUG		= 0;	/*!< Default setting for manager debug */

static int displayconnects;
static int allowmultiplelogin = 1;
static int timestampevents;
static int httptimeout;
static int broken_events_action;
static int manager_enabled = 0;
static int webmanager_enabled = 0;
static int manager_debug = 0;	/*!< enable some debugging code in the manager */
static int authtimeout;
static int authlimit;
static char *manager_channelvars;

#define DEFAULT_REALM		"asterisk"
static char global_realm[MAXHOSTNAMELEN];	/*!< Default realm */

static int block_sockets;
static int unauth_sessions = 0;


/*! \brief
 * Descriptor for a manager session, either on the AMI socket or over HTTP.
 *
 * \note
 * AMI session have managerid == 0; the entry is created upon a connect,
 * and destroyed with the socket.
 * HTTP sessions have managerid != 0, the value is used as a search key
 * to lookup sessions (using the mansession_id cookie, or nonce key from
 * Digest Authentication http header).
 */
#define MAX_BLACKLIST_CMD_LEN 2
static const struct {
	const char *words[AST_MAX_CMD_LEN];
} command_blacklist[] = {
	{{ "module", "load", NULL }},
	{{ "module", "unload", NULL }},
	{{ "restart", "gracefully", NULL }},
};

/* In order to understand what the heck is going on with the
 * mansession_session and mansession structs, we need to have a bit of a history
 * lesson.
 *
 * In the beginning, there was the mansession. The mansession contained data that was
 * intrinsic to a manager session, such as the time that it started, the name of the logged-in
 * user, etc. In addition to these parameters were the f and fd parameters. For typical manager
 * sessions, these were used to represent the TCP socket over which the AMI session was taking
 * place. It makes perfect sense for these fields to be a part of the session-specific data since
 * the session actually defines this information.
 *
 * Then came the HTTP AMI sessions. With these, the f and fd fields need to be opened and closed
 * for every single action that occurs. Thus the f and fd fields aren't really specific to the session
 * but rather to the action that is being executed. Because a single session may execute many commands
 * at once, some sort of safety needed to be added in order to be sure that we did not end up with fd
 * leaks from one action overwriting the f and fd fields used by a previous action before the previous action
 * has had a chance to properly close its handles.
 *
 * The initial idea to solve this was to use thread synchronization, but this prevented multiple actions
 * from being run at the same time in a single session. Some manager actions may block for a long time, thus
 * creating a large queue of actions to execute. In addition, this fix did not address the basic architectural
 * issue that for HTTP manager sessions, the f and fd variables are not really a part of the session, but are
 * part of the action instead.
 *
 * The new idea was to create a structure on the stack for each HTTP Manager action. This structure would
 * contain the action-specific information, such as which file to write to. In order to maintain expectations
 * of action handlers and not have to change the public API of the manager code, we would need to name this
 * new stacked structure 'mansession' and contain within it the old mansession struct that we used to use.
 * We renamed the old mansession struct 'mansession_session' to hopefully convey that what is in this structure
 * is session-specific data. The structure that it is wrapped in, called a 'mansession' really contains action-specific
 * data.
 */
struct mansession_session {
				/* XXX need to document which fields it is protecting */
	struct sockaddr_in sin;	/*!< address we are connecting from */
	FILE *f;		/*!< fdopen() on the underlying fd */
	int fd;			/*!< descriptor used for output. Either the socket (AMI) or a temporary file (HTTP) */
	int inuse;		/*!< number of HTTP sessions using this entry */
	int needdestroy;	/*!< Whether an HTTP session should be destroyed */
	pthread_t waiting_thread;	/*!< Sleeping thread using this descriptor */
	uint32_t managerid;	/*!< Unique manager identifier, 0 for AMI sessions */
	time_t sessionstart;    /*!< Session start time */
	struct timeval sessionstart_tv; /*!< Session start time */
	time_t sessiontimeout;	/*!< Session timeout if HTTP */
	char username[80];	/*!< Logged in username */
	char challenge[10];	/*!< Authentication challenge */
	int authenticated;	/*!< Authentication status */
	int readperm;		/*!< Authorization for reading */
	int writeperm;		/*!< Authorization for writing */
	char inbuf[1025];	/*!< Buffer */
				/* we use the extra byte to add a '\0' and simplify parsing */
	int inlen;		/*!< number of buffered bytes */
	int send_events;	/*!<  XXX what ? */
	struct eventqent *last_ev;	/*!< last event processed. */
	int writetimeout;	/*!< Timeout for ast_carefulwrite() */
	time_t authstart;
	int pending_event;         /*!< Pending events indicator in case when waiting_thread is NULL */
	time_t noncetime;	/*!< Timer for nonce value expiration */
	struct ao2_container *whitefilters;
	struct ao2_container *blackfilters;
	unsigned long oldnonce;	/*!< Stale nonce value */
	unsigned long nc;	/*!< incremental  nonce counter */
	AST_LIST_HEAD_NOLOCK(mansession_datastores, ast_datastore) datastores; /*!< Data stores on the session */
	AST_LIST_ENTRY(mansession_session) list;
};

enum mansession_message_parsing {
	MESSAGE_OKAY,
	MESSAGE_LINE_TOO_LONG
};

/* In case you didn't read that giant block of text above the mansession_session struct, the
 * 'mansession' struct is named this solely to keep the API the same in Asterisk. This structure really
 * represents data that is different from Manager action to Manager action. The mansession_session pointer
 * contained within points to session-specific data.
 */
struct mansession {
	struct mansession_session *session;
	struct ast_tcptls_session_instance *tcptls_session;
	FILE *f;
	int fd;
	enum mansession_message_parsing parsing;
	int write_error:1;
	struct manager_custom_hook *hook;
	ast_mutex_t lock;
};

static struct ao2_container *sessions = NULL;

struct manager_channel_variable {
	AST_LIST_ENTRY(manager_channel_variable) entry;
	unsigned int isfunc:1;
	char name[0]; /* allocate off the end the real size. */
};

static AST_RWLIST_HEAD_STATIC(channelvars, manager_channel_variable);

/*! \brief user descriptor, as read from the config file.
 *
 * \note It is still missing some fields -- e.g. we can have multiple permit and deny
 * lines which are not supported here, and readperm/writeperm/writetimeout
 * are not stored.
 */
struct ast_manager_user {
	char username[80];
	char *secret;
	struct ast_ha *ha;		/*!< ACL setting */
	int readperm;			/*! Authorization for reading */
	int writeperm;			/*! Authorization for writing */
	int writetimeout;		/*! Per user Timeout for ast_carefulwrite() */
	int displayconnects;		/*!< XXX unused */
	int keep;			/*!< mark entries created on a reload */
	struct ao2_container *whitefilters;
	struct ao2_container *blackfilters;
	char *a1_hash;			/*!< precalculated A1 for Digest auth */
	AST_RWLIST_ENTRY(ast_manager_user) list;
};

/*! \brief list of users found in the config file */
static AST_RWLIST_HEAD_STATIC(users, ast_manager_user);

/*! \brief list of actions registered */
static AST_RWLIST_HEAD_STATIC(actions, manager_action);

/*! \brief list of hooks registered */
static AST_RWLIST_HEAD_STATIC(manager_hooks, manager_custom_hook);

static void free_channelvars(void);

/*!
 * \internal
 * \brief Find a registered action object.
 *
 * \param name Name of AMI action to find.
 *
 * \return Reffed action found or NULL
 */
static struct manager_action *action_find(const char *name)
{
	struct manager_action *act;

	AST_RWLIST_RDLOCK(&actions);
	AST_RWLIST_TRAVERSE(&actions, act, list) {
		if (!strcasecmp(name, act->action)) {
			ao2_t_ref(act, +1, "found action object");
			break;
		}
	}
	AST_RWLIST_UNLOCK(&actions);

	return act;
}

/*! \brief Add a custom hook to be called when an event is fired */
void ast_manager_register_hook(struct manager_custom_hook *hook)
{
	AST_RWLIST_WRLOCK(&manager_hooks);
	AST_RWLIST_INSERT_TAIL(&manager_hooks, hook, list);
	AST_RWLIST_UNLOCK(&manager_hooks);
}

/*! \brief Delete a custom hook to be called when an event is fired */
void ast_manager_unregister_hook(struct manager_custom_hook *hook)
{
	AST_RWLIST_WRLOCK(&manager_hooks);
	AST_RWLIST_REMOVE(&manager_hooks, hook, list);
	AST_RWLIST_UNLOCK(&manager_hooks);
}

int check_manager_enabled(void)
{
	return manager_enabled;
}

int check_webmanager_enabled(void)
{
	return (webmanager_enabled && manager_enabled);
}

/*!
 * Grab a reference to the last event, update usecount as needed.
 * Can handle a NULL pointer.
 */
static struct eventqent *grab_last(void)
{
	struct eventqent *ret;

	AST_RWLIST_WRLOCK(&all_events);
	ret = AST_RWLIST_LAST(&all_events);
	/* the list is never empty now, but may become so when
	 * we optimize it in the future, so be prepared.
	 */
	if (ret) {
		ast_atomic_fetchadd_int(&ret->usecount, 1);
	}
	AST_RWLIST_UNLOCK(&all_events);
	return ret;
}

/*!
 * Purge unused events. Remove elements from the head
 * as long as their usecount is 0 and there is a next element.
 */
static void purge_events(void)
{
	struct eventqent *ev;
	struct timeval now = ast_tvnow();

	AST_RWLIST_WRLOCK(&all_events);
	while ( (ev = AST_RWLIST_FIRST(&all_events)) &&
	    ev->usecount == 0 && AST_RWLIST_NEXT(ev, eq_next)) {
		AST_RWLIST_REMOVE_HEAD(&all_events, eq_next);
		ast_free(ev);
	}

	AST_RWLIST_TRAVERSE_SAFE_BEGIN(&all_events, ev, eq_next) {
		/* Never release the last event */
		if (!AST_RWLIST_NEXT(ev, eq_next)) {
			break;
		}

		/* 2.5 times whatever the HTTP timeout is (maximum 2.5 hours) is the maximum time that we will definitely cache an event */
		if (ev->usecount == 0 && ast_tvdiff_sec(now, ev->tv) > (httptimeout > 3600 ? 3600 : httptimeout) * 2.5) {
			AST_RWLIST_REMOVE_CURRENT(eq_next);
			ast_free(ev);
		}
	}
	AST_RWLIST_TRAVERSE_SAFE_END;
	AST_RWLIST_UNLOCK(&all_events);
}

/*!
 * helper functions to convert back and forth between
 * string and numeric representation of set of flags
 */
static const struct permalias {
	int num;
	const char *label;
} perms[] = {
	{ EVENT_FLAG_SYSTEM, "system" },
	{ EVENT_FLAG_CALL, "call" },
	{ EVENT_FLAG_LOG, "log" },
	{ EVENT_FLAG_VERBOSE, "verbose" },
	{ EVENT_FLAG_COMMAND, "command" },
	{ EVENT_FLAG_AGENT, "agent" },
	{ EVENT_FLAG_USER, "user" },
	{ EVENT_FLAG_CONFIG, "config" },
	{ EVENT_FLAG_DTMF, "dtmf" },
	{ EVENT_FLAG_REPORTING, "reporting" },
	{ EVENT_FLAG_CDR, "cdr" },
	{ EVENT_FLAG_DIALPLAN, "dialplan" },
	{ EVENT_FLAG_ORIGINATE, "originate" },
	{ EVENT_FLAG_AGI, "agi" },
	{ EVENT_FLAG_CC, "cc" },
	{ EVENT_FLAG_AOC, "aoc" },
	{ EVENT_FLAG_TEST, "test" },
	{ INT_MAX, "all" },
	{ 0, "none" },
};

/*! \brief Checks to see if a string which can be used to evaluate functions should be rejected */
static int function_capable_string_allowed_with_auths(const char *evaluating, int writepermlist)
{
	if (!(writepermlist & EVENT_FLAG_SYSTEM)
		&& (
			strstr(evaluating, "SHELL") ||       /* NoOp(${SHELL(rm -rf /)})  */
			strstr(evaluating, "EVAL")           /* NoOp(${EVAL(${some_var_containing_SHELL})}) */
		)) {
		return 0;
	}
	return 1;
}

/*! \brief Convert authority code to a list of options for a user. This will only
 * display those authority codes that have an explicit match on authority */
static const char *user_authority_to_str(int authority, struct ast_str **res)
{
	int i;
	char *sep = "";

	ast_str_reset(*res);
	for (i = 0; i < ARRAY_LEN(perms) - 1; i++) {
		if ((authority & perms[i].num) == perms[i].num) {
			ast_str_append(res, 0, "%s%s", sep, perms[i].label);
			sep = ",";
		}
	}

	if (ast_str_strlen(*res) == 0)	/* replace empty string with something sensible */
		ast_str_append(res, 0, "<none>");

	return ast_str_buffer(*res);
}


/*! \brief Convert authority code to a list of options. Note that the EVENT_FLAG_ALL
 * authority will always be returned. */
static const char *authority_to_str(int authority, struct ast_str **res)
{
	int i;
	char *sep = "";

	ast_str_reset(*res);
	for (i = 0; i < ARRAY_LEN(perms) - 1; i++) {
		if (authority & perms[i].num) {
			ast_str_append(res, 0, "%s%s", sep, perms[i].label);
			sep = ",";
		}
	}

	if (ast_str_strlen(*res) == 0)	/* replace empty string with something sensible */
		ast_str_append(res, 0, "<none>");

	return ast_str_buffer(*res);
}

/*! Tells you if smallstr exists inside bigstr
   which is delim by delim and uses no buf or stringsep
   ast_instring("this|that|more","this",'|') == 1;

   feel free to move this to app.c -anthm */
static int ast_instring(const char *bigstr, const char *smallstr, const char delim)
{
	const char *val = bigstr, *next;

	do {
		if ((next = strchr(val, delim))) {
			if (!strncmp(val, smallstr, (next - val))) {
				return 1;
			} else {
				continue;
			}
		} else {
			return !strcmp(smallstr, val);
		}
	} while (*(val = (next + 1)));

	return 0;
}

static int get_perm(const char *instr)
{
	int x = 0, ret = 0;

	if (!instr) {
		return 0;
	}

	for (x = 0; x < ARRAY_LEN(perms); x++) {
		if (ast_instring(instr, perms[x].label, ',')) {
			ret |= perms[x].num;
		}
	}

	return ret;
}

/*!
 * A number returns itself, false returns 0, true returns all flags,
 * other strings return the flags that are set.
 */
static int strings_to_mask(const char *string)
{
	const char *p;

	if (ast_strlen_zero(string)) {
		return -1;
	}

	for (p = string; *p; p++) {
		if (*p < '0' || *p > '9') {
			break;
		}
	}
	if (!*p) { /* all digits */
		return atoi(string);
	}
	if (ast_false(string)) {
		return 0;
	}
	if (ast_true(string)) {	/* all permissions */
		int x, ret = 0;
		for (x = 0; x < ARRAY_LEN(perms); x++) {
			ret |= perms[x].num;
		}
		return ret;
	}
	return get_perm(string);
}

/*! \brief Unreference manager session object.
     If no more references, then go ahead and delete it */
static struct mansession_session *unref_mansession(struct mansession_session *s)
{
	int refcount = ao2_ref(s, -1);
        if (manager_debug) {
		ast_log(LOG_DEBUG, "Mansession: %p refcount now %d\n", s, refcount - 1);
	}
	return s;
}

static void event_filter_destructor(void *obj)
{
	regex_t *regex_filter = obj;
	regfree(regex_filter);
}

static void session_destructor(void *obj)
{
	struct mansession_session *session = obj;
	struct eventqent *eqe = session->last_ev;
	struct ast_datastore *datastore;

	/* Get rid of each of the data stores on the session */
	while ((datastore = AST_LIST_REMOVE_HEAD(&session->datastores, entry))) {
		/* Free the data store */
		ast_datastore_free(datastore);
	}

	if (session->f != NULL) {
		fclose(session->f);
	}
	if (eqe) {
		ast_atomic_fetchadd_int(&eqe->usecount, -1);
	}

	if (session->whitefilters) {
		ao2_t_callback(session->whitefilters, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, NULL, NULL, "unlink all white filters");
		ao2_t_ref(session->whitefilters, -1 , "decrement ref for white container, should be last one");
	}

	if (session->blackfilters) {
		ao2_t_callback(session->blackfilters, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, NULL, NULL, "unlink all black filters");
		ao2_t_ref(session->blackfilters, -1 , "decrement ref for black container, should be last one");
	}
}

/*! \brief Allocate manager session structure and add it to the list of sessions */
static struct mansession_session *build_mansession(struct sockaddr_in sin)
{
	struct mansession_session *newsession;

	if (!(newsession = ao2_alloc(sizeof(*newsession), session_destructor))) {
		return NULL;
	}

	if (!(newsession->whitefilters = ao2_container_alloc(1, NULL, NULL))) {
		ao2_ref(newsession, -1);
		return NULL;
	}

	if (!(newsession->blackfilters = ao2_container_alloc(1, NULL, NULL))) {
		ao2_ref(newsession, -1); /* session_destructor will cleanup the other filter */
		return NULL;
	}

	newsession->fd = -1;
	newsession->waiting_thread = AST_PTHREADT_NULL;
	newsession->writetimeout = 100;
	newsession->send_events = -1;
	newsession->sin = sin;

	ao2_link(sessions, newsession);

	return newsession;
}

static int mansession_cmp_fn(void *obj, void *arg, int flags)
{
	struct mansession_session *s = obj;
	char *str = arg;
	return !strcasecmp(s->username, str) ? CMP_MATCH : 0;
}

static void session_destroy(struct mansession_session *s)
{
	unref_mansession(s);
	ao2_unlink(sessions, s);
}


static int check_manager_session_inuse(const char *name)
{
	struct mansession_session *session = ao2_find(sessions, (char *) name, 0);
	int inuse = 0;

	if (session) {
		inuse = 1;
		unref_mansession(session);
	}
	return inuse;
}


/*!
 * lookup an entry in the list of registered users.
 * must be called with the list lock held.
 */
static struct ast_manager_user *get_manager_by_name_locked(const char *name)
{
	struct ast_manager_user *user = NULL;

	AST_RWLIST_TRAVERSE(&users, user, list) {
		if (!strcasecmp(user->username, name)) {
			break;
		}
	}

	return user;
}

/*! \brief Get displayconnects config option.
 *  \param session manager session to get parameter from.
 *  \return displayconnects config option value.
 */
static int manager_displayconnects (struct mansession_session *session)
{
	struct ast_manager_user *user = NULL;
	int ret = 0;

	AST_RWLIST_RDLOCK(&users);
	if ((user = get_manager_by_name_locked (session->username))) {
		ret = user->displayconnects;
	}
	AST_RWLIST_UNLOCK(&users);

	return ret;
}

static char *handle_showmancmd(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
	struct manager_action *cur;
	struct ast_str *authority;
	int num, l, which;
	char *ret = NULL;
#ifdef AST_XML_DOCS
	char syntax_title[64], description_title[64], synopsis_title[64], seealso_title[64], arguments_title[64];
#endif

	switch (cmd) {
	case CLI_INIT:
		e->command = "manager show command";
		e->usage =
			"Usage: manager show command <actionname> [<actionname> [<actionname> [...]]]\n"
			"	Shows the detailed description for a specific Asterisk manager interface command.\n";
		return NULL;
	case CLI_GENERATE:
		l = strlen(a->word);
		which = 0;
		AST_RWLIST_RDLOCK(&actions);
		AST_RWLIST_TRAVERSE(&actions, cur, list) {
			if (!strncasecmp(a->word, cur->action, l) && ++which > a->n) {
				ret = ast_strdup(cur->action);
				break;	/* make sure we exit even if ast_strdup() returns NULL */
			}
		}
		AST_RWLIST_UNLOCK(&actions);
		return ret;
	}
	authority = ast_str_alloca(80);
	if (a->argc < 4) {
		return CLI_SHOWUSAGE;
	}

#ifdef AST_XML_DOCS
	/* setup the titles */
	term_color(synopsis_title, "[Synopsis]\n", COLOR_MAGENTA, 0, 40);
	term_color(description_title, "[Description]\n", COLOR_MAGENTA, 0, 40);
	term_color(syntax_title, "[Syntax]\n", COLOR_MAGENTA, 0, 40);
	term_color(seealso_title, "[See Also]\n", COLOR_MAGENTA, 0, 40);
	term_color(arguments_title, "[Arguments]\n", COLOR_MAGENTA, 0, 40);
#endif

	AST_RWLIST_RDLOCK(&actions);
	AST_RWLIST_TRAVERSE(&actions, cur, list) {
		for (num = 3; num < a->argc; num++) {
			if (!strcasecmp(cur->action, a->argv[num])) {
#ifdef AST_XML_DOCS
				if (cur->docsrc == AST_XML_DOC) {
					char *syntax = ast_xmldoc_printable(S_OR(cur->syntax, "Not available"), 1);
					char *synopsis = ast_xmldoc_printable(S_OR(cur->synopsis, "Not available"), 1);
					char *description = ast_xmldoc_printable(S_OR(cur->description, "Not available"), 1);
					char *arguments = ast_xmldoc_printable(S_OR(cur->arguments, "Not available"), 1);
					char *seealso = ast_xmldoc_printable(S_OR(cur->seealso, "Not available"), 1);
					ast_cli(a->fd, "%s%s\n\n%s%s\n\n%s%s\n\n%s%s\n\n%s%s\n\n",
						syntax_title, syntax,
						synopsis_title, synopsis,
						description_title, description,
						arguments_title, arguments,
						seealso_title, seealso);
					ast_free(syntax);
					ast_free(synopsis);
					ast_free(description);
					ast_free(arguments);
					ast_free(seealso);
				} else
#endif
				{
					ast_cli(a->fd, "Action: %s\nSynopsis: %s\nPrivilege: %s\n%s\n",
						cur->action, cur->synopsis,
						authority_to_str(cur->authority, &authority),
						S_OR(cur->description, ""));
				}
			}
		}
	}
	AST_RWLIST_UNLOCK(&actions);

	return CLI_SUCCESS;
}

static char *handle_mandebug(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
	switch (cmd) {
	case CLI_INIT:
		e->command = "manager set debug [on|off]";
		e->usage = "Usage: manager set debug [on|off]\n	Show, enable, disable debugging of the manager code.\n";
		return NULL;
	case CLI_GENERATE:
		return NULL;
	}

	if (a->argc == 3) {
		ast_cli(a->fd, "manager debug is %s\n", manager_debug? "on" : "off");
	} else if (a->argc == 4) {
		if (!strcasecmp(a->argv[3], "on")) {
			manager_debug = 1;
		} else if (!strcasecmp(a->argv[3], "off")) {
			manager_debug = 0;
		} else {
			return CLI_SHOWUSAGE;
		}
	}
	return CLI_SUCCESS;
}

static char *handle_showmanager(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
	struct ast_manager_user *user = NULL;
	int l, which;
	char *ret = NULL;
	struct ast_str *rauthority = ast_str_alloca(128);
	struct ast_str *wauthority = ast_str_alloca(128);

	switch (cmd) {
	case CLI_INIT:
		e->command = "manager show user";
		e->usage =
			" Usage: manager show user <user>\n"
			"        Display all information related to the manager user specified.\n";
		return NULL;
	case CLI_GENERATE:
		l = strlen(a->word);
		which = 0;
		if (a->pos != 3) {
			return NULL;
		}
		AST_RWLIST_RDLOCK(&users);
		AST_RWLIST_TRAVERSE(&users, user, list) {
			if ( !strncasecmp(a->word, user->username, l) && ++which > a->n ) {
				ret = ast_strdup(user->username);
				break;
			}
		}
		AST_RWLIST_UNLOCK(&users);
		return ret;
	}

	if (a->argc != 4) {
		return CLI_SHOWUSAGE;
	}

	AST_RWLIST_RDLOCK(&users);

	if (!(user = get_manager_by_name_locked(a->argv[3]))) {
		ast_cli(a->fd, "There is no manager called %s\n", a->argv[3]);
		AST_RWLIST_UNLOCK(&users);
		return CLI_SUCCESS;
	}

	ast_cli(a->fd, "\n");
	ast_cli(a->fd,
		"       username: %s\n"
		"         secret: %s\n"
		"            acl: %s\n"
		"      read perm: %s\n"
		"     write perm: %s\n"
		"displayconnects: %s\n",
		(user->username ? user->username : "(N/A)"),
		(user->secret ? "<Set>" : "(N/A)"),
		(user->ha ? "yes" : "no"),
		user_authority_to_str(user->readperm, &rauthority),
		user_authority_to_str(user->writeperm, &wauthority),
		(user->displayconnects ? "yes" : "no"));

	AST_RWLIST_UNLOCK(&users);

	return CLI_SUCCESS;
}

static char *handle_showmanagers(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
	struct ast_manager_user *user = NULL;
	int count_amu = 0;
	switch (cmd) {
	case CLI_INIT:
		e->command = "manager show users";
		e->usage =
			"Usage: manager show users\n"
			"       Prints a listing of all managers that are currently configured on that\n"
			" system.\n";
		return NULL;
	case CLI_GENERATE:
		return NULL;
	}
	if (a->argc != 3) {
		return CLI_SHOWUSAGE;
	}

	AST_RWLIST_RDLOCK(&users);

	/* If there are no users, print out something along those lines */
	if (AST_RWLIST_EMPTY(&users)) {
		ast_cli(a->fd, "There are no manager users.\n");
		AST_RWLIST_UNLOCK(&users);
		return CLI_SUCCESS;
	}

	ast_cli(a->fd, "\nusername\n--------\n");

	AST_RWLIST_TRAVERSE(&users, user, list) {
		ast_cli(a->fd, "%s\n", user->username);
		count_amu++;
	}

	AST_RWLIST_UNLOCK(&users);

	ast_cli(a->fd,"-------------------\n"
		      "%d manager users configured.\n", count_amu);
	return CLI_SUCCESS;
}

/*! \brief  CLI command  manager list commands */
static char *handle_showmancmds(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
	struct manager_action *cur;
	struct ast_str *authority;
#define HSMC_FORMAT "  %-15.15s  %-15.15s  %-55.55s\n"
	switch (cmd) {
	case CLI_INIT:
		e->command = "manager show commands";
		e->usage =
			"Usage: manager show commands\n"
			"	Prints a listing of all the available Asterisk manager interface commands.\n";
		return NULL;
	case CLI_GENERATE:
		return NULL;
	}
	authority = ast_str_alloca(80);
	ast_cli(a->fd, HSMC_FORMAT, "Action", "Privilege", "Synopsis");
	ast_cli(a->fd, HSMC_FORMAT, "------", "---------", "--------");

	AST_RWLIST_RDLOCK(&actions);
	AST_RWLIST_TRAVERSE(&actions, cur, list) {
		ast_cli(a->fd, HSMC_FORMAT, cur->action, authority_to_str(cur->authority, &authority), cur->synopsis);
	}
	AST_RWLIST_UNLOCK(&actions);

	return CLI_SUCCESS;
}

/*! \brief CLI command manager list connected */
static char *handle_showmanconn(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
	struct mansession_session *session;
	time_t now = time(NULL);
#define HSMCONN_FORMAT1 "  %-15.15s  %-15.15s  %-10.10s  %-10.10s  %-8.8s  %-8.8s  %-5.5s  %-5.5s\n"
#define HSMCONN_FORMAT2 "  %-15.15s  %-15.15s  %-10d  %-10d  %-8d  %-8d  %-5.5d  %-5.5d\n"
	int count = 0;
	struct ao2_iterator i;

	switch (cmd) {
	case CLI_INIT:
		e->command = "manager show connected";
		e->usage =
			"Usage: manager show connected\n"
			"	Prints a listing of the users that are currently connected to the\n"
			"Asterisk manager interface.\n";
		return NULL;
	case CLI_GENERATE:
		return NULL;
	}

	ast_cli(a->fd, HSMCONN_FORMAT1, "Username", "IP Address", "Start", "Elapsed", "FileDes", "HttpCnt", "Read", "Write");

	i = ao2_iterator_init(sessions, 0);
	while ((session = ao2_iterator_next(&i))) {
		ao2_lock(session);
		ast_cli(a->fd, HSMCONN_FORMAT2, session->username, ast_inet_ntoa(session->sin.sin_addr), (int)(session->sessionstart), (int)(now - session->sessionstart), session->fd, session->inuse, session->readperm, session->writeperm);
		count++;
		ao2_unlock(session);
		unref_mansession(session);
	}
	ao2_iterator_destroy(&i);
	ast_cli(a->fd, "%d users connected.\n", count);

	return CLI_SUCCESS;
}

/*! \brief CLI command manager list eventq */
/* Should change to "manager show connected" */
static char *handle_showmaneventq(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
	struct eventqent *s;
	switch (cmd) {
	case CLI_INIT:
		e->command = "manager show eventq";
		e->usage =
			"Usage: manager show eventq\n"
			"	Prints a listing of all events pending in the Asterisk manger\n"
			"event queue.\n";
		return NULL;
	case CLI_GENERATE:
		return NULL;
	}
	AST_RWLIST_RDLOCK(&all_events);
	AST_RWLIST_TRAVERSE(&all_events, s, eq_next) {
		ast_cli(a->fd, "Usecount: %d\n", s->usecount);
		ast_cli(a->fd, "Category: %d\n", s->category);
		ast_cli(a->fd, "Event:\n%s", s->eventdata);
	}
	AST_RWLIST_UNLOCK(&all_events);

	return CLI_SUCCESS;
}

/*! \brief CLI command manager reload */
static char *handle_manager_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
	switch (cmd) {
	case CLI_INIT:
		e->command = "manager reload";
		e->usage =
			"Usage: manager reload\n"
			"       Reloads the manager configuration.\n";
		return NULL;
	case CLI_GENERATE:
		return NULL;
	}
	if (a->argc > 2) {
		return CLI_SHOWUSAGE;
	}
	reload_manager();
	return CLI_SUCCESS;
}

static struct eventqent *advance_event(struct eventqent *e)
{
	struct eventqent *next;

	AST_RWLIST_RDLOCK(&all_events);
	if ((next = AST_RWLIST_NEXT(e, eq_next))) {
		ast_atomic_fetchadd_int(&next->usecount, 1);
		ast_atomic_fetchadd_int(&e->usecount, -1);
	}
	AST_RWLIST_UNLOCK(&all_events);
	return next;
}

#define	GET_HEADER_FIRST_MATCH	0
#define	GET_HEADER_LAST_MATCH	1
#define	GET_HEADER_SKIP_EMPTY	2

/*!
 * \brief Return a matching header value.
 *
 * \details
 * Generic function to return either the first or the last
 * matching header from a list of variables, possibly skipping
 * empty strings.
 *
 * \note At the moment there is only one use of this function in
 * this file, so we make it static.
 *
 * \note Never returns NULL.
 */
static const char *__astman_get_header(const struct message *m, char *var, int mode)
{
	int x, l = strlen(var);
	const char *result = "";

	if (!m) {
		return result;
	}

	for (x = 0; x < m->hdrcount; x++) {
		const char *h = m->headers[x];
		if (!strncasecmp(var, h, l) && h[l] == ':') {
			const char *value = h + l + 1;
			value = ast_skip_blanks(value); /* ignore leading spaces in the value */
			/* found a potential candidate */
			if ((mode & GET_HEADER_SKIP_EMPTY) && ast_strlen_zero(value)) {
				continue;	/* not interesting */
			}
			if (mode & GET_HEADER_LAST_MATCH) {
				result = value;	/* record the last match so far */
			} else {
				return value;
			}
		}
	}

	return result;
}

/*!
 * \brief Return the first matching variable from an array.
 *
 * \note This is the legacy function and is implemented in
 * therms of __astman_get_header().
 *
 * \note Never returns NULL.
 */
const char *astman_get_header(const struct message *m, char *var)
{
	return __astman_get_header(m, var, GET_HEADER_FIRST_MATCH);
}

/*!
 * \internal
 * \brief Process one "Variable:" header value string.
 *
 * \param head Current list of AMI variables to get new values added.
 * \param hdr_val Header value string to process.
 *
 * \return New variable list head.
 */
static struct ast_variable *man_do_variable_value(struct ast_variable *head, const char *hdr_val)
{
	char *parse;
	AST_DECLARE_APP_ARGS(args,
		AST_APP_ARG(vars)[64];
	);

	hdr_val = ast_skip_blanks(hdr_val); /* ignore leading spaces in the value */
	parse = ast_strdupa(hdr_val);

	/* Break the header value string into name=val pair items. */
	AST_STANDARD_APP_ARGS(args, parse);
	if (args.argc) {
		int y;

		/* Process each name=val pair item. */
		for (y = 0; y < args.argc; y++) {
			struct ast_variable *cur;
			char *var;
			char *val;

			if (!args.vars[y]) {
				continue;
			}
			var = val = args.vars[y];
			strsep(&val, "=");

			/* XXX We may wish to trim whitespace from the strings. */
			if (!val || ast_strlen_zero(var)) {
				continue;
			}

			/* Create new variable list node and prepend it to the list. */
			cur = ast_variable_new(var, val, "");
			if (cur) {
				cur->next = head;
				head = cur;
			}
		}
	}

	return head;
}

struct ast_variable *astman_get_variables(const struct message *m)
{
	int varlen;
	int x;
	struct ast_variable *head = NULL;

	static const char var_hdr[] = "Variable:";

	/* Process all "Variable:" headers. */
	varlen = strlen(var_hdr);
	for (x = 0; x < m->hdrcount; x++) {
		if (strncasecmp(var_hdr, m->headers[x], varlen)) {
			continue;
		}
		head = man_do_variable_value(head, m->headers[x] + varlen);
	}

	return head;
}

/* access for hooks to send action messages to ami */

int ast_hook_send_action(struct manager_custom_hook *hook, const char *msg)
{
	const char *action;
	int ret = 0;
	struct manager_action *act_found;
	struct mansession s = {.session = NULL, };
	struct message m = { 0 };
	char *dup_str;
	char *src;
	int x = 0;
	int curlen;

	if (hook == NULL) {
		return -1;
	}

	/* Create our own copy of the AMI action msg string. */
	src = dup_str = ast_strdup(msg);
	if (!dup_str) {
		return -1;
	}

	/* convert msg string to message struct */
	curlen = strlen(src);
	for (x = 0; x < curlen; x++) {
		int cr;	/* set if we have \r */
		if (src[x] == '\r' && x+1 < curlen && src[x+1] == '\n')
			cr = 2;	/* Found. Update length to include \r\n */
		else if (src[x] == '\n')
			cr = 1;	/* also accept \n only */
		else
			continue;
		/* don't keep empty lines */
		if (x && m.hdrcount < ARRAY_LEN(m.headers)) {
			/* ... but trim \r\n and terminate the header string */
			src[x] = '\0';
			m.headers[m.hdrcount++] = src;
		}
		x += cr;
		curlen -= x;		/* remaining size */
		src += x;		/* update pointer */
		x = -1;			/* reset loop */
	}

	action = astman_get_header(&m, "Action");
	if (strcasecmp(action, "login")) {
		act_found = action_find(action);
		if (act_found) {
			/*
			 * we have to simulate a session for this action request
			 * to be able to pass it down for processing
			 * This is necessary to meet the previous design of manager.c
			 */
			s.hook = hook;
			s.f = (void*)1; /* set this to something so our request will make it through all functions that test it*/

			ao2_lock(act_found);
			if (act_found->registered && act_found->func) {
				++act_found->active_count;
				ao2_unlock(act_found);
				ret = act_found->func(&s, &m);
				ao2_lock(act_found);
				--act_found->active_count;
			} else {
				ret = -1;
			}
			ao2_unlock(act_found);
			ao2_t_ref(act_found, -1, "done with found action object");
		}
	}
	ast_free(dup_str);
	return ret;
}


/*!
 * helper function to send a string to the socket.
 * Return -1 on error (e.g. buffer full).
 */
static int send_string(struct mansession *s, char *string)
{
	int res;
	FILE *f = s->f ? s->f : s->session->f;
	int fd = s->f ? s->fd : s->session->fd;

	/* It's a result from one of the hook's action invocation */
	if (s->hook) {
		/*
		 * to send responses, we're using the same function
		 * as for receiving events. We call the event "HookResponse"
		 */
		s->hook->helper(EVENT_FLAG_HOOKRESPONSE, "HookResponse", string);
		return 0;
	}
       
	if ((res = ast_careful_fwrite(f, fd, string, strlen(string), s->session->writetimeout))) {
		s->write_error = 1;
	}

	return res;
}

/*!
 * \brief thread local buffer for astman_append
 *
 * \note This can not be defined within the astman_append() function
 *       because it declares a couple of functions that get used to
 *       initialize the thread local storage key.
 */
AST_THREADSTORAGE(astman_append_buf);
AST_THREADSTORAGE(userevent_buf);

/*! \brief initial allocated size for the astman_append_buf */
#define ASTMAN_APPEND_BUF_INITSIZE   256

/*!
 * utility functions for creating AMI replies
 */
void astman_append(struct mansession *s, const char *fmt, ...)
{
	va_list ap;
	struct ast_str *buf;

	if (!(buf = ast_str_thread_get(&astman_append_buf, ASTMAN_APPEND_BUF_INITSIZE))) {
		return;
	}

	va_start(ap, fmt);
	ast_str_set_va(&buf, 0, fmt, ap);
	va_end(ap);

	if (s->f != NULL || s->session->f != NULL) {
		send_string(s, ast_str_buffer(buf));
	} else {
		ast_verbose("fd == -1 in astman_append, should not happen\n");
	}
}

/*! \note NOTE: XXX this comment is unclear and possibly wrong.
   Callers of astman_send_error(), astman_send_response() or astman_send_ack() must EITHER
   hold the session lock _or_ be running in an action callback (in which case s->session->busy will
   be non-zero). In either of these cases, there is no need to lock-protect the session's
   fd, since no other output will be sent (events will be queued), and no input will
   be read until either the current action finishes or get_input() obtains the session
   lock.
 */

/*! \brief send a response with an optional message,
 * and terminate it with an empty line.
 * m is used only to grab the 'ActionID' field.
 *
 * Use the explicit constant MSG_MOREDATA to remove the empty line.
 * XXX MSG_MOREDATA should go to a header file.
 */
#define MSG_MOREDATA	((char *)astman_send_response)
static void astman_send_response_full(struct mansession *s, const struct message *m, char *resp, char *msg, char *listflag)
{
	const char *id = astman_get_header(m, "ActionID");

	astman_append(s, "Response: %s\r\n", resp);
	if (!ast_strlen_zero(id)) {
		astman_append(s, "ActionID: %s\r\n", id);
	}
	if (listflag) {
		astman_append(s, "EventList: %s\r\n", listflag);	/* Start, complete, cancelled */
	}
	if (msg == MSG_MOREDATA) {
		return;
	} else if (msg) {
		astman_append(s, "Message: %s\r\n\r\n", msg);
	} else {
		astman_append(s, "\r\n");
	}
}

void astman_send_response(struct mansession *s, const struct message *m, char *resp, char *msg)
{
	astman_send_response_full(s, m, resp, msg, NULL);
}

void astman_send_error(struct mansession *s, const struct message *m, char *error)
{
	astman_send_response_full(s, m, "Error", error, NULL);
}

void astman_send_ack(struct mansession *s, const struct message *m, char *msg)
{
	astman_send_response_full(s, m, "Success", msg, NULL);
}

static void astman_start_ack(struct mansession *s, const struct message *m)
{
	astman_send_response_full(s, m, "Success", MSG_MOREDATA, NULL);
}

void astman_send_listack(struct mansession *s, const struct message *m, char *msg, char *listflag)
{
	astman_send_response_full(s, m, "Success", msg, listflag);
}

/*! \brief Lock the 'mansession' structure. */
static void mansession_lock(struct mansession *s)
{
	ast_mutex_lock(&s->lock);
}

/*! \brief Unlock the 'mansession' structure. */
static void mansession_unlock(struct mansession *s)
{
	ast_mutex_unlock(&s->lock);
}

/*! \brief
   Rather than braindead on,off this now can also accept a specific int mask value
   or a ',' delim list of mask strings (the same as manager.conf) -anthm
*/
static int set_eventmask(struct mansession *s, const char *eventmask)
{
	int maskint = strings_to_mask(eventmask);

	ao2_lock(s->session);
	if (maskint >= 0) {
		s->session->send_events = maskint;
	}
	ao2_unlock(s->session);

	return maskint;
}

static enum ast_security_event_transport_type mansession_get_transport(const struct mansession *s)
{
	return s->tcptls_session->parent->tls_cfg ? AST_SECURITY_EVENT_TRANSPORT_TLS :
			AST_SECURITY_EVENT_TRANSPORT_TCP;
}

static struct sockaddr_in *mansession_encode_sin_local(const struct mansession *s,
		struct sockaddr_in *sin_local)
{
	ast_sockaddr_to_sin(&s->tcptls_session->parent->local_address,
			    sin_local);

	return sin_local;
}

static void report_invalid_user(const struct mansession *s, const char *username)
{
	struct sockaddr_in sin_local;
	char session_id[32];
	struct ast_security_event_inval_acct_id inval_acct_id = {
		.common.event_type = AST_SECURITY_EVENT_INVAL_ACCT_ID,
		.common.version    = AST_SECURITY_EVENT_INVAL_ACCT_ID_VERSION,
		.common.service    = "AMI",
		.common.account_id = username,
		.common.session_tv = &s->session->sessionstart_tv,
		.common.local_addr = {
			.sin       = mansession_encode_sin_local(s, &sin_local),
			.transport = mansession_get_transport(s),
		},
		.common.remote_addr = {
			.sin       = &s->session->sin,
			.transport = mansession_get_transport(s),
		},
		.common.session_id = session_id,
	};

	snprintf(session_id, sizeof(session_id), "%p", s);

	ast_security_event_report(AST_SEC_EVT(&inval_acct_id));
}

static void report_failed_acl(const struct mansession *s, const char *username)
{
	struct sockaddr_in sin_local;
	char session_id[32];
	struct ast_security_event_failed_acl failed_acl_event = {
		.common.event_type = AST_SECURITY_EVENT_FAILED_ACL,
		.common.version    = AST_SECURITY_EVENT_FAILED_ACL_VERSION,
		.common.service    = "AMI",
		.common.account_id = username,
		.common.session_tv = &s->session->sessionstart_tv,
		.common.local_addr = {
			.sin       = mansession_encode_sin_local(s, &sin_local),
			.transport = mansession_get_transport(s),
		},
		.common.remote_addr = {
			.sin       = &s->session->sin,
			.transport = mansession_get_transport(s),
		},
		.common.session_id = session_id,
	};

	snprintf(session_id, sizeof(session_id), "%p", s->session);

	ast_security_event_report(AST_SEC_EVT(&failed_acl_event));
}

static void report_inval_password(const struct mansession *s, const char *username)
{
	struct sockaddr_in sin_local;
	char session_id[32];
	struct ast_security_event_inval_password inval_password = {
		.common.event_type = AST_SECURITY_EVENT_INVAL_PASSWORD,
		.common.version    = AST_SECURITY_EVENT_INVAL_PASSWORD_VERSION,
		.common.service    = "AMI",
		.common.account_id = username,
		.common.session_tv = &s->session->sessionstart_tv,
		.common.local_addr = {
			.sin       = mansession_encode_sin_local(s, &sin_local),
			.transport = mansession_get_transport(s),
		},
		.common.remote_addr = {
			.sin       = &s->session->sin,
			.transport = mansession_get_transport(s),
		},
		.common.session_id = session_id,
	};

	snprintf(session_id, sizeof(session_id), "%p", s->session);

	ast_security_event_report(AST_SEC_EVT(&inval_password));
}

static void report_auth_success(const struct mansession *s)
{
	struct sockaddr_in sin_local;
	char session_id[32];
	struct ast_security_event_successful_auth successful_auth = {
		.common.event_type = AST_SECURITY_EVENT_SUCCESSFUL_AUTH,
		.common.version    = AST_SECURITY_EVENT_SUCCESSFUL_AUTH_VERSION,
		.common.service    = "AMI",
		.common.account_id = s->session->username,
		.common.session_tv = &s->session->sessionstart_tv,
		.common.local_addr = {
			.sin       = mansession_encode_sin_local(s, &sin_local),
			.transport = mansession_get_transport(s),
		},
		.common.remote_addr = {
			.sin       = &s->session->sin,
			.transport = mansession_get_transport(s),
		},
		.common.session_id = session_id,
	};

	snprintf(session_id, sizeof(session_id), "%p", s->session);

	ast_security_event_report(AST_SEC_EVT(&successful_auth));
}

static void report_req_not_allowed(const struct mansession *s, const char *action)
{
	struct sockaddr_in sin_local;
	char session_id[32];
	char request_type[64];
	struct ast_security_event_req_not_allowed req_not_allowed = {
		.common.event_type = AST_SECURITY_EVENT_REQ_NOT_ALLOWED,
		.common.version    = AST_SECURITY_EVENT_REQ_NOT_ALLOWED_VERSION,
		.common.service    = "AMI",
		.common.account_id = s->session->username,
		.common.session_tv = &s->session->sessionstart_tv,
		.common.local_addr = {
			.sin       = mansession_encode_sin_local(s, &sin_local),
			.transport = mansession_get_transport(s),
		},
		.common.remote_addr = {
			.sin       = &s->session->sin,
			.transport = mansession_get_transport(s),
		},
		.common.session_id = session_id,

		.request_type      = request_type,
	};

	snprintf(session_id, sizeof(session_id), "%p", s->session);
	snprintf(request_type, sizeof(request_type), "Action: %s", action);

	ast_security_event_report(AST_SEC_EVT(&req_not_allowed));
}

static void report_req_bad_format(const struct mansession *s, const char *action)
{
	struct sockaddr_in sin_local;
	char session_id[32];
	char request_type[64];
	struct ast_security_event_req_bad_format req_bad_format = {
		.common.event_type = AST_SECURITY_EVENT_REQ_BAD_FORMAT,
		.common.version    = AST_SECURITY_EVENT_REQ_BAD_FORMAT_VERSION,
		.common.service    = "AMI",
		.common.account_id = s->session->username,
		.common.session_tv = &s->session->sessionstart_tv,
		.common.local_addr = {
			.sin       = mansession_encode_sin_local(s, &sin_local),
			.transport = mansession_get_transport(s),
		},
		.common.remote_addr = {
			.sin       = &s->session->sin,
			.transport = mansession_get_transport(s),
		},
		.common.session_id = session_id,

		.request_type      = request_type,
	};

	snprintf(session_id, sizeof(session_id), "%p", s->session);
	snprintf(request_type, sizeof(request_type), "Action: %s", action);

	ast_security_event_report(AST_SEC_EVT(&req_bad_format));
}

static void report_failed_challenge_response(const struct mansession *s,
		const char *response, const char *expected_response)
{
	struct sockaddr_in sin_local;
	char session_id[32];
	struct ast_security_event_chal_resp_failed chal_resp_failed = {
		.common.event_type = AST_SECURITY_EVENT_CHAL_RESP_FAILED,
		.common.version    = AST_SECURITY_EVENT_CHAL_RESP_FAILED_VERSION,
		.common.service    = "AMI",
		.common.account_id = s->session->username,
		.common.session_tv = &s->session->sessionstart_tv,
		.common.local_addr = {
			.sin       = mansession_encode_sin_local(s, &sin_local),
			.transport = mansession_get_transport(s),
		},
		.common.remote_addr = {
			.sin       = &s->session->sin,
			.transport = mansession_get_transport(s),
		},
		.common.session_id = session_id,

		.challenge         = s->session->challenge,
		.response          = response,
		.expected_response = expected_response,
	};

	snprintf(session_id, sizeof(session_id), "%p", s->session);

	ast_security_event_report(AST_SEC_EVT(&chal_resp_failed));
}

static void report_session_limit(const struct mansession *s)
{
	struct sockaddr_in sin_local;
	char session_id[32];
	struct ast_security_event_session_limit session_limit = {
		.common.event_type = AST_SECURITY_EVENT_SESSION_LIMIT,
		.common.version    = AST_SECURITY_EVENT_SESSION_LIMIT_VERSION,
		.common.service    = "AMI",
		.common.account_id = s->session->username,
		.common.session_tv = &s->session->sessionstart_tv,
		.common.local_addr = {
			.sin       = mansession_encode_sin_local(s, &sin_local),
			.transport = mansession_get_transport(s),
		},
		.common.remote_addr = {
			.sin       = &s->session->sin,
			.transport = mansession_get_transport(s),
		},
		.common.session_id = session_id,
	};

	snprintf(session_id, sizeof(session_id), "%p", s->session);

	ast_security_event_report(AST_SEC_EVT(&session_limit));
}

/*
 * Here we start with action_ handlers for AMI actions,
 * and the internal functions used by them.
 * Generally, the handlers are called action_foo()
 */

/* helper function for action_login() */
static int authenticate(struct mansession *s, const struct message *m)
{
	const char *username = astman_get_header(m, "Username");
	const char *password = astman_get_header(m, "Secret");
	int error = -1;
	struct ast_manager_user *user = NULL;
	regex_t *regex_filter;
	struct ao2_iterator filter_iter;
	struct ast_sockaddr addr;

	if (ast_strlen_zero(username)) {	/* missing username */
		return -1;
	}

	/* locate user in locked state */
	AST_RWLIST_WRLOCK(&users);

	ast_sockaddr_from_sin(&addr, &s->session->sin);

	if (!(user = get_manager_by_name_locked(username))) {
		report_invalid_user(s, username);
		ast_log(LOG_NOTICE, "%s tried to authenticate with nonexistent user '%s'\n", ast_inet_ntoa(s->session->sin.sin_addr), username);
	} else if (user->ha && !ast_apply_ha(user->ha, &addr)) {
		report_failed_acl(s, username);
		ast_log(LOG_NOTICE, "%s failed to pass IP ACL as '%s'\n", ast_inet_ntoa(s->session->sin.sin_addr), username);
	} else if (!strcasecmp(astman_get_header(m, "AuthType"), "MD5")) {
		const char *key = astman_get_header(m, "Key");
		if (!ast_strlen_zero(key) && !ast_strlen_zero(s->session->challenge) && user->secret) {
			int x;
			int len = 0;
			char md5key[256] = "";
			struct MD5Context md5;
			unsigned char digest[16];

			MD5Init(&md5);
			MD5Update(&md5, (unsigned char *) s->session->challenge, strlen(s->session->challenge));
			MD5Update(&md5, (unsigned char *) user->secret, strlen(user->secret));
			MD5Final(digest, &md5);
			for (x = 0; x < 16; x++)
				len += sprintf(md5key + len, "%2.2x", digest[x]);
			if (!strcmp(md5key, key)) {
				error = 0;
			} else {
				report_failed_challenge_response(s, key, md5key);
			}
		} else {
			ast_debug(1, "MD5 authentication is not possible.  challenge: '%s'\n",
				S_OR(s->session->challenge, ""));
		}
	} else if (user->secret) {
		if (!strcmp(password, user->secret)) {
			error = 0;
		} else {
			report_inval_password(s, username);
		}
	}

	if (error) {
		ast_log(LOG_NOTICE, "%s failed to authenticate as '%s'\n", ast_inet_ntoa(s->session->sin.sin_addr), username);
		AST_RWLIST_UNLOCK(&users);
		return -1;
	}

	/* auth complete */

	/* All of the user parameters are copied to the session so that in the event
     * of a reload and a configuration change, the session parameters are not
     * changed. */
	ast_copy_string(s->session->username, username, sizeof(s->session->username));
	s->session->readperm = user->readperm;
	s->session->writeperm = user->writeperm;
	s->session->writetimeout = user->writetimeout;

	filter_iter = ao2_iterator_init(user->whitefilters, 0);
	while ((regex_filter = ao2_iterator_next(&filter_iter))) {
		ao2_t_link(s->session->whitefilters, regex_filter, "add white user filter to session");
		ao2_t_ref(regex_filter, -1, "remove iterator ref");
	}
	ao2_iterator_destroy(&filter_iter);

	filter_iter = ao2_iterator_init(user->blackfilters, 0);
	while ((regex_filter = ao2_iterator_next(&filter_iter))) {
		ao2_t_link(s->session->blackfilters, regex_filter, "add black user filter to session");
		ao2_t_ref(regex_filter, -1, "remove iterator ref");
	}
	ao2_iterator_destroy(&filter_iter);

	s->session->sessionstart = time(NULL);
	s->session->sessionstart_tv = ast_tvnow();
	set_eventmask(s, astman_get_header(m, "Events"));

	report_auth_success(s);

	AST_RWLIST_UNLOCK(&users);
	return 0;
}

static int action_ping(struct mansession *s, const struct message *m)
{
	const char *actionid = astman_get_header(m, "ActionID");
	struct timeval now = ast_tvnow();

	astman_append(s, "Response: Success\r\n");
	if (!ast_strlen_zero(actionid)){
		astman_append(s, "ActionID: %s\r\n", actionid);
	}
	astman_append(
		s,
		"Ping: Pong\r\n"
		"Timestamp: %ld.%06lu\r\n"
		"\r\n",
		(long) now.tv_sec, (unsigned long) now.tv_usec);
	return 0;
}

static int action_getconfig(struct mansession *s, const struct message *m)
{
	struct ast_config *cfg;
	const char *fn = astman_get_header(m, "Filename");
	const char *category = astman_get_header(m, "Category");
	int catcount = 0;
	int lineno = 0;
	char *cur_category = NULL;
	struct ast_variable *v;
	struct ast_flags config_flags = { CONFIG_FLAG_WITHCOMMENTS | CONFIG_FLAG_NOCACHE };

	if (ast_strlen_zero(fn)) {
		astman_send_error(s, m, "Filename not specified");
		return 0;
	}
	cfg = ast_config_load2(fn, "manager", config_flags);
	if (cfg == CONFIG_STATUS_FILEMISSING) {
		astman_send_error(s, m, "Config file not found");
		return 0;
	} else if (cfg == CONFIG_STATUS_FILEINVALID) {
		astman_send_error(s, m, "Config file has invalid format");
		return 0;
	}

	astman_start_ack(s, m);
	while ((cur_category = ast_category_browse(cfg, cur_category))) {
		if (ast_strlen_zero(category) || (!ast_strlen_zero(category) && !strcmp(category, cur_category))) {
			lineno = 0;
			astman_append(s, "Category-%06d: %s\r\n", catcount, cur_category);
			for (v = ast_variable_browse(cfg, cur_category); v; v = v->next) {
				astman_append(s, "Line-%06d-%06d: %s=%s\r\n", catcount, lineno++, v->name, v->value);
			}
			catcount++;
		}
	}
	if (!ast_strlen_zero(category) && catcount == 0) { /* TODO: actually, a config with no categories doesn't even get loaded */
		astman_append(s, "No categories found\r\n");
	}
	ast_config_destroy(cfg);
	astman_append(s, "\r\n");

	return 0;
}

static int action_listcategories(struct mansession *s, const struct message *m)
{
	struct ast_config *cfg;
	const char *fn = astman_get_header(m, "Filename");
	char *category = NULL;
	struct ast_flags config_flags = { CONFIG_FLAG_WITHCOMMENTS | CONFIG_FLAG_NOCACHE };
	int catcount = 0;

	if (ast_strlen_zero(fn)) {
		astman_send_error(s, m, "Filename not specified");
		return 0;
	}
	if (!(cfg = ast_config_load2(fn, "manager", config_flags))) {
		astman_send_error(s, m, "Config file not found");
		return 0;
	} else if (cfg == CONFIG_STATUS_FILEINVALID) {
		astman_send_error(s, m, "Config file has invalid format");
		return 0;
	}
	astman_start_ack(s, m);
	while ((category = ast_category_browse(cfg, category))) {
		astman_append(s, "Category-%06d: %s\r\n", catcount, category);
		catcount++;
	}
	if (catcount == 0) { /* TODO: actually, a config with no categories doesn't even get loaded */
		astman_append(s, "Error: no categories found\r\n");
	}
	ast_config_destroy(cfg);
	astman_append(s, "\r\n");

	return 0;
}




/*! The amount of space in out must be at least ( 2 * strlen(in) + 1 ) */
static void json_escape(char *out, const char *in)
{
	for (; *in; in++) {
		if (*in == '\\' || *in == '\"') {
			*out++ = '\\';
		}
		*out++ = *in;
	}
	*out = '\0';
}

/*!
 * \internal
 * \brief Append a JSON escaped string to the manager stream.
 *
 * \param s AMI stream to append a string.
 * \param str String to append to the stream after JSON escaping it.
 *
 * \return Nothing
 */
static void astman_append_json(struct mansession *s, const char *str)
{
	char *buf;

	buf = ast_alloca(2 * strlen(str) + 1);
	json_escape(buf, str);
	astman_append(s, "%s", buf);
}

static int action_getconfigjson(struct mansession *s, const struct message *m)
{
	struct ast_config *cfg;
	const char *fn = astman_get_header(m, "Filename");
	char *category = NULL;
	struct ast_variable *v;
	int comma1 = 0;
	struct ast_flags config_flags = { CONFIG_FLAG_WITHCOMMENTS | CONFIG_FLAG_NOCACHE };

	if (ast_strlen_zero(fn)) {
		astman_send_error(s, m, "Filename not specified");
		return 0;
	}

	if (!(cfg = ast_config_load2(fn, "manager", config_flags))) {
		astman_send_error(s, m, "Config file not found");
		return 0;
	} else if (cfg == CONFIG_STATUS_FILEINVALID) {
		astman_send_error(s, m, "Config file has invalid format");
		return 0;
	}

	astman_start_ack(s, m);
	astman_append(s, "JSON: {");
	while ((category = ast_category_browse(cfg, category))) {
		int comma2 = 0;

		astman_append(s, "%s\"", comma1 ? "," : "");
		astman_append_json(s, category);
		astman_append(s, "\":[");
		comma1 = 1;
		for (v = ast_variable_browse(cfg, category); v; v = v->next) {
			astman_append(s, "%s\"", comma2 ? "," : "");
			astman_append_json(s, v->name);
			astman_append(s, "\":\"");
			astman_append_json(s, v->value);
			astman_append(s, "\"");
			comma2 = 1;
		}
		astman_append(s, "]");
	}
	astman_append(s, "}\r\n\r\n");

	ast_config_destroy(cfg);

	return 0;
}

/* helper function for action_updateconfig */
static enum error_type handle_updates(struct mansession *s, const struct message *m, struct ast_config *cfg, const char *dfn)
{
	int x;
	char hdr[40];
	const char *action, *cat, *var, *value, *match, *line;
	struct ast_category *category;
	struct ast_variable *v;
	struct ast_str *str1 = ast_str_create(16), *str2 = ast_str_create(16);
	enum error_type result = 0;

	for (x = 0; x < 100000; x++) {	/* 100000 = the max number of allowed updates + 1 */
		unsigned int object = 0;

		snprintf(hdr, sizeof(hdr), "Action-%06d", x);
		action = astman_get_header(m, hdr);
		if (ast_strlen_zero(action))		/* breaks the for loop if no action header */
			break;                      	/* this could cause problems if actions come in misnumbered */

		snprintf(hdr, sizeof(hdr), "Cat-%06d", x);
		cat = astman_get_header(m, hdr);
		if (ast_strlen_zero(cat)) {		/* every action needs a category */
			result =  UNSPECIFIED_CATEGORY;
			break;
		}

		snprintf(hdr, sizeof(hdr), "Var-%06d", x);
		var = astman_get_header(m, hdr);

		snprintf(hdr, sizeof(hdr), "Value-%06d", x);
		value = astman_get_header(m, hdr);

		if (!ast_strlen_zero(value) && *value == '>') {
			object = 1;
			value++;
		}

		snprintf(hdr, sizeof(hdr), "Match-%06d", x);
		match = astman_get_header(m, hdr);

		snprintf(hdr, sizeof(hdr), "Line-%06d", x);
		line = astman_get_header(m, hdr);

		if (!strcasecmp(action, "newcat")) {
			if (ast_category_get(cfg,cat)) {	/* check to make sure the cat doesn't */
				result = FAILURE_NEWCAT;	/* already exist */
				break;
			}
			if (!(category = ast_category_new(cat, dfn, -1))) {
				result = FAILURE_ALLOCATION;
				break;
			}
			if (ast_strlen_zero(match)) {
				ast_category_append(cfg, category);
			} else {
				ast_category_insert(cfg, category, match);
			}
		} else if (!strcasecmp(action, "renamecat")) {
			if (ast_strlen_zero(value)) {
				result = UNSPECIFIED_ARGUMENT;
				break;
			}
			if (!(category = ast_category_get(cfg, cat))) {
				result = UNKNOWN_CATEGORY;
				break;
			}
			ast_category_rename(category, value);
		} else if (!strcasecmp(action, "delcat")) {
			if (ast_category_delete(cfg, cat)) {
				result = FAILURE_DELCAT;
				break;
			}
		} else if (!strcasecmp(action, "emptycat")) {
			if (ast_category_empty(cfg, cat)) {
				result = FAILURE_EMPTYCAT;
				break;
			}
		} else if (!strcasecmp(action, "update")) {
			if (ast_strlen_zero(var)) {
				result = UNSPECIFIED_ARGUMENT;
				break;
			}
			if (!(category = ast_category_get(cfg,cat))) {
				result = UNKNOWN_CATEGORY;
				break;
			}
			if (ast_variable_update(category, var, value, match, object)) {
				result = FAILURE_UPDATE;
				break;
			}
		} else if (!strcasecmp(action, "delete")) {
			if ((ast_strlen_zero(var) && ast_strlen_zero(line))) {
				result = UNSPECIFIED_ARGUMENT;
				break;
			}
			if (!(category = ast_category_get(cfg, cat))) {
				result = UNKNOWN_CATEGORY;
				break;
			}
			if (ast_variable_delete(category, var, match, line)) {
				result = FAILURE_DELETE;
				break;
			}
		} else if (!strcasecmp(action, "append")) {
			if (ast_strlen_zero(var)) {
				result = UNSPECIFIED_ARGUMENT;
				break;
			}
			if (!(category = ast_category_get(cfg, cat))) {
				result = UNKNOWN_CATEGORY;
				break;
			}
			if (!(v = ast_variable_new(var, value, dfn))) {
				result = FAILURE_ALLOCATION;
				break;
			}
			if (object || (match && !strcasecmp(match, "object"))) {
				v->object = 1;
			}
			ast_variable_append(category, v);
		} else if (!strcasecmp(action, "insert")) {
			if (ast_strlen_zero(var) || ast_strlen_zero(line)) {
				result = UNSPECIFIED_ARGUMENT;
				break;
			}
			if (!(category = ast_category_get(cfg, cat))) {
				result = UNKNOWN_CATEGORY;
				break;
			}
			if (!(v = ast_variable_new(var, value, dfn))) {
				result = FAILURE_ALLOCATION;
				break;
			}
			ast_variable_insert(category, v, line);
		}
		else {
			ast_log(LOG_WARNING, "Action-%06d: %s not handled\n", x, action);
			result = UNKNOWN_ACTION;
			break;
		}
	}
	ast_free(str1);
	ast_free(str2);
	return result;
}

static int action_updateconfig(struct mansession *s, const struct message *m)
{
	struct ast_config *cfg;
	const char *sfn = astman_get_header(m, "SrcFilename");
	const char *dfn = astman_get_header(m, "DstFilename");
	int res;
	const char *rld = astman_get_header(m, "Reload");
	struct ast_flags config_flags = { CONFIG_FLAG_WITHCOMMENTS | CONFIG_FLAG_NOCACHE };
	enum error_type result;

	if (ast_strlen_zero(sfn) || ast_strlen_zero(dfn)) {
		astman_send_error(s, m, "Filename not specified");
		return 0;
	}
	if (!(cfg = ast_config_load2(sfn, "manager", config_flags))) {
		astman_send_error(s, m, "Config file not found");
		return 0;
	} else if (cfg == CONFIG_STATUS_FILEINVALID) {
		astman_send_error(s, m, "Config file has invalid format");
		return 0;
	}
	result = handle_updates(s, m, cfg, dfn);
	if (!result) {
		ast_include_rename(cfg, sfn, dfn); /* change the include references from dfn to sfn, so things match up */
		res = ast_config_text_file_save(dfn, cfg, "Manager");
		ast_config_destroy(cfg);
		if (res) {
			astman_send_error(s, m, "Save of config failed");
			return 0;
		}
		astman_send_ack(s, m, NULL);
		if (!ast_strlen_zero(rld)) {
			if (ast_true(rld)) {
				rld = NULL;
			}
			ast_module_reload(rld);
		}
	} else {
		ast_config_destroy(cfg);
		switch(result) {
		case UNKNOWN_ACTION:
			astman_send_error(s, m, "Unknown action command");
			break;
		case UNKNOWN_CATEGORY:
			astman_send_error(s, m, "Given category does not exist");
			break;
		case UNSPECIFIED_CATEGORY:
			astman_send_error(s, m, "Category not specified");
			break;
		case UNSPECIFIED_ARGUMENT:
			astman_send_error(s, m, "Problem with category, value, or line (if required)");
			break;
		case FAILURE_ALLOCATION:
			astman_send_error(s, m, "Memory allocation failure, this should not happen");
			break;
		case FAILURE_NEWCAT:
			astman_send_error(s, m, "Create category did not complete successfully");
			break;
		case FAILURE_DELCAT:
			astman_send_error(s, m, "Delete category did not complete successfully");
			break;
		case FAILURE_EMPTYCAT:
			astman_send_error(s, m, "Empty category did not complete successfully");
			break;
		case FAILURE_UPDATE:
			astman_send_error(s, m, "Update did not complete successfully");
			break;
		case FAILURE_DELETE:
			astman_send_error(s, m, "Delete did not complete successfully");
			break;
		case FAILURE_APPEND:
			astman_send_error(s, m, "Append did not complete successfully");
			break;
		}
	}
	return 0;
}

static int action_createconfig(struct mansession *s, const struct message *m)
{
	int fd;
	const char *fn = astman_get_header(m, "Filename");
	struct ast_str *filepath = ast_str_alloca(PATH_MAX);
	ast_str_set(&filepath, 0, "%s/", ast_config_AST_CONFIG_DIR);
	ast_str_append(&filepath, 0, "%s", fn);

	if ((fd = open(ast_str_buffer(filepath), O_CREAT | O_EXCL, AST_FILE_MODE)) != -1) {
		close(fd);
		astman_send_ack(s, m, "New configuration file created successfully");
	} else {
		astman_send_error(s, m, strerror(errno));
	}

	return 0;
}

static int action_waitevent(struct mansession *s, const struct message *m)
{
	const char *timeouts = astman_get_header(m, "Timeout");
	int timeout = -1;
	int x;
	int needexit = 0;
	const char *id = astman_get_header(m, "ActionID");
	char idText[256];

	if (!ast_strlen_zero(id)) {
		snprintf(idText, sizeof(idText), "ActionID: %s\r\n", id);
	} else {
		idText[0] = '\0';
	}

	if (!ast_strlen_zero(timeouts)) {
		sscanf(timeouts, "%30i", &timeout);
		if (timeout < -1) {
			timeout = -1;
		}
		/* XXX maybe put an upper bound, or prevent the use of 0 ? */
	}

	ao2_lock(s->session);
	if (s->session->waiting_thread != AST_PTHREADT_NULL) {
		pthread_kill(s->session->waiting_thread, SIGURG);
	}

	if (s->session->managerid) { /* AMI-over-HTTP session */
		/*
		 * Make sure the timeout is within the expire time of the session,
		 * as the client will likely abort the request if it does not see
		 * data coming after some amount of time.
		 */
		time_t now = time(NULL);
		int max = s->session->sessiontimeout - now - 10;

		if (max < 0) {	/* We are already late. Strange but possible. */
			max = 0;
		}
		if (timeout < 0 || timeout > max) {
			timeout = max;
		}
		if (!s->session->send_events) {	/* make sure we record events */
			s->session->send_events = -1;
		}
	}
	ao2_unlock(s->session);

	/* XXX should this go inside the lock ? */
	s->session->waiting_thread = pthread_self();	/* let new events wake up this thread */
	ast_debug(1, "Starting waiting for an event!\n");

	for (x = 0; x < timeout || timeout < 0; x++) {
		ao2_lock(s->session);
		if (AST_RWLIST_NEXT(s->session->last_ev, eq_next)) {
			needexit = 1;
		}
		/* We can have multiple HTTP session point to the same mansession entry.
		 * The way we deal with it is not very nice: newcomers kick out the previous
		 * HTTP session. XXX this needs to be improved.
		 */
		if (s->session->waiting_thread != pthread_self()) {
			needexit = 1;
		}
		if (s->session->needdestroy) {
			needexit = 1;
		}
		ao2_unlock(s->session);
		if (needexit) {
			break;
		}
		if (s->session->managerid == 0) {	/* AMI session */
			if (ast_wait_for_input(s->session->fd, 1000)) {
				break;
			}
		} else {	/* HTTP session */
			sleep(1);
		}
	}
	ast_debug(1, "Finished waiting for an event!\n");

	ao2_lock(s->session);
	if (s->session->waiting_thread == pthread_self()) {
		struct eventqent *eqe = s->session->last_ev;
		astman_send_response(s, m, "Success", "Waiting for Event completed.");
		while ((eqe = advance_event(eqe))) {
			if (((s->session->readperm & eqe->category) == eqe->category) &&
			    ((s->session->send_events & eqe->category) == eqe->category)) {
				astman_append(s, "%s", eqe->eventdata);
			}
			s->session->last_ev = eqe;
		}
		astman_append(s,
			"Event: WaitEventComplete\r\n"
			"%s"
			"\r\n", idText);
		s->session->waiting_thread = AST_PTHREADT_NULL;
	} else {
		ast_debug(1, "Abandoning event request!\n");
	}
	ao2_unlock(s->session);

	return 0;
}

static int action_listcommands(struct mansession *s, const struct message *m)
{
	struct manager_action *cur;
	struct ast_str *temp = ast_str_alloca(256);

	astman_start_ack(s, m);
	AST_RWLIST_RDLOCK(&actions);
	AST_RWLIST_TRAVERSE(&actions, cur, list) {
		if ((s->session->writeperm & cur->authority) || cur->authority == 0) {
			astman_append(s, "%s: %s (Priv: %s)\r\n",
				cur->action, cur->synopsis, authority_to_str(cur->authority, &temp));
		}
	}
	AST_RWLIST_UNLOCK(&actions);
	astman_append(s, "\r\n");

	return 0;
}

static int action_events(struct mansession *s, const struct message *m)
{
	const char *mask = astman_get_header(m, "EventMask");
	int res, x;
	const char *id = astman_get_header(m, "ActionID");
	char id_text[256];

	if (!ast_strlen_zero(id)) {
		snprintf(id_text, sizeof(id_text), "ActionID: %s\r\n", id);
	} else {
		id_text[0] = '\0';
	}

	res = set_eventmask(s, mask);
	if (broken_events_action) {
		/* if this option is set we should not return a response on
		 * error, or when all events are set */

		if (res > 0) {
			for (x = 0; x < ARRAY_LEN(perms); x++) {
				if (!strcasecmp(perms[x].label, "all") && res == perms[x].num) {
					return 0;
				}
			}
			astman_append(s, "Response: Success\r\n%s"
					 "Events: On\r\n\r\n", id_text);
		} else if (res == 0)
			astman_append(s, "Response: Success\r\n%s"
					 "Events: Off\r\n\r\n", id_text);
		return 0;
	}

	if (res > 0)
		astman_append(s, "Response: Success\r\n%s"
				 "Events: On\r\n\r\n", id_text);
	else if (res == 0)
		astman_append(s, "Response: Success\r\n%s"
				 "Events: Off\r\n\r\n", id_text);
	else
		astman_send_error(s, m, "Invalid event mask");

	return 0;
}

static int action_logoff(struct mansession *s, const struct message *m)
{
	astman_send_response(s, m, "Goodbye", "Thanks for all the fish.");
	return -1;
}

static int action_login(struct mansession *s, const struct message *m)
{

	/* still authenticated - don't process again */
	if (s->session->authenticated) {
		astman_send_ack(s, m, "Already authenticated");
		return 0;
	}

	if (authenticate(s, m)) {
		sleep(1);
		astman_send_error(s, m, "Authentication failed");
		return -1;
	}
	s->session->authenticated = 1;
	ast_atomic_fetchadd_int(&unauth_sessions, -1);
	if (manager_displayconnects(s->session)) {
		ast_verb(2, "%sManager '%s' logged on from %s\n", (s->session->managerid ? "HTTP " : ""), s->session->username, ast_inet_ntoa(s->session->sin.sin_addr));
	}
	astman_send_ack(s, m, "Authentication accepted");
	if ((s->session->send_events & EVENT_FLAG_SYSTEM)
		&& ast_test_flag(&ast_options, AST_OPT_FLAG_FULLY_BOOTED)) {
		struct ast_str *auth = ast_str_alloca(80);
		const char *cat_str = authority_to_str(EVENT_FLAG_SYSTEM, &auth);
		astman_append(s, "Event: FullyBooted\r\n"
			"Privilege: %s\r\n"
			"Status: Fully Booted\r\n\r\n", cat_str);
	}
	return 0;
}

static int action_challenge(struct mansession *s, const struct message *m)
{
	const char *authtype = astman_get_header(m, "AuthType");

	if (!strcasecmp(authtype, "MD5")) {
		if (ast_strlen_zero(s->session->challenge)) {
			snprintf(s->session->challenge, sizeof(s->session->challenge), "%ld", ast_random());
		}
		mansession_lock(s);
		astman_start_ack(s, m);
		astman_append(s, "Challenge: %s\r\n\r\n", s->session->challenge);
		mansession_unlock(s);
	} else {
		astman_send_error(s, m, "Must specify AuthType");
	}
	return 0;
}

static int action_hangup(struct mansession *s, const struct message *m)
{
	struct ast_channel *c = NULL;
	int causecode = 0; /* all values <= 0 mean 'do not set hangupcause in channel' */
	const char *name = astman_get_header(m, "Channel");
	const char *cause = astman_get_header(m, "Cause");

	if (ast_strlen_zero(name)) {
		astman_send_error(s, m, "No channel specified");
		return 0;
	}

	if (!ast_strlen_zero(cause)) {
		char *endptr;
		causecode = strtol(cause, &endptr, 10);
		if (causecode < 0 || causecode > 127 || *endptr != '\0') {
			ast_log(LOG_NOTICE, "Invalid 'Cause: %s' in manager action Hangup\n", cause);
			/* keep going, better to hangup without cause than to not hang up at all */
			causecode = 0; /* do not set channel's hangupcause */
		}
	}

	if (!(c = ast_channel_get_by_name(name))) {
		astman_send_error(s, m, "No such channel");
		return 0;
	}

	ast_channel_lock(c);
	if (causecode > 0) {
		ast_debug(1, "Setting hangupcause of channel %s to %d (is %d now)\n",
				c->name, causecode, c->hangupcause);
		c->hangupcause = causecode;
	}
	ast_softhangup_nolock(c, AST_SOFTHANGUP_EXPLICIT);
	ast_channel_unlock(c);

	c = ast_channel_unref(c);

	astman_send_ack(s, m, "Channel Hungup");

	return 0;
}

static int action_setvar(struct mansession *s, const struct message *m)
{
	struct ast_channel *c = NULL;
	const char *name = astman_get_header(m, "Channel");
	const char *varname = astman_get_header(m, "Variable");
	const char *varval = astman_get_header(m, "Value");
	int res = 0;
	
	if (ast_strlen_zero(varname)) {
		astman_send_error(s, m, "No variable specified");
		return 0;
	}

	if (!ast_strlen_zero(name)) {
		if (!(c = ast_channel_get_by_name(name))) {
			astman_send_error(s, m, "No such channel");
			return 0;
		}
	}

	res = pbx_builtin_setvar_helper(c, varname, S_OR(varval, ""));

	if (c) {
		c = ast_channel_unref(c);
	}
	if (res == 0) {
		astman_send_ack(s, m, "Variable Set");	
	} else {
		astman_send_error(s, m, "Variable not set");
	}
	return 0;
}

static int action_getvar(struct mansession *s, const struct message *m)
{
	struct ast_channel *c = NULL;
	const char *name = astman_get_header(m, "Channel");
	const char *varname = astman_get_header(m, "Variable");
	char *varval;
	char workspace[1024];

	if (ast_strlen_zero(varname)) {
		astman_send_error(s, m, "No variable specified");
		return 0;
	}

	/* We don't want users with insufficient permissions using certain functions. */
	if (!(function_capable_string_allowed_with_auths(varname, s->session->writeperm))) {
		astman_send_error(s, m, "GetVar Access Forbidden: Variable");
		return 0;
	}

	if (!ast_strlen_zero(name)) {
		if (!(c = ast_channel_get_by_name(name))) {
			astman_send_error(s, m, "No such channel");
			return 0;
		}
	}

	workspace[0] = '\0';
	if (varname[strlen(varname) - 1] == ')') {
		if (!c) {
			c = ast_dummy_channel_alloc();
			if (c) {
				ast_func_read(c, (char *) varname, workspace, sizeof(workspace));
			} else
				ast_log(LOG_ERROR, "Unable to allocate bogus channel for variable substitution.  Function results may be blank.\n");
		} else {
			ast_func_read(c, (char *) varname, workspace, sizeof(workspace));
		}
		varval = workspace;
	} else {
		pbx_retrieve_variable(c, varname, &varval, workspace, sizeof(workspace), NULL);
	}

	if (c) {
		c = ast_channel_unref(c);
	}

	astman_start_ack(s, m);
	astman_append(s, "Variable: %s\r\nValue: %s\r\n\r\n", varname, S_OR(varval, ""));

	return 0;
}

/*! \brief Manager "status" command to show channels */
/* Needs documentation... */
static int action_status(struct mansession *s, const struct message *m)
{
	const char *name = astman_get_header(m, "Channel");
	const char *cvariables = astman_get_header(m, "Variables");
	char *variables = ast_strdupa(S_OR(cvariables, ""));
	struct ast_channel *c;
	char bridge[256];
	struct timeval now = ast_tvnow();
	long elapsed_seconds = 0;
	int channels = 0;
	int all = ast_strlen_zero(name); /* set if we want all channels */
	const char *id = astman_get_header(m, "ActionID");
	char idText[256];
	AST_DECLARE_APP_ARGS(vars,
		AST_APP_ARG(name)[100];
	);
	struct ast_str *str = ast_str_create(1000);
	struct ast_channel_iterator *iter = NULL;

	if (!ast_strlen_zero(id)) {
		snprintf(idText, sizeof(idText), "ActionID: %s\r\n", id);
	} else {
		idText[0] = '\0';
	}

	if (!(function_capable_string_allowed_with_auths(variables, s->session->writeperm))) {
		astman_send_error(s, m, "Status Access Forbidden: Variables");
		return 0;
	}

	if (all) {
		if (!(iter = ast_channel_iterator_all_new())) {
			ast_free(str);
			astman_send_error(s, m, "Memory Allocation Failure");
			return 1;
		}
		c = ast_channel_iterator_next(iter);
	} else {
		if (!(c = ast_channel_get_by_name(name))) {
			astman_send_error(s, m, "No such channel");
			ast_free(str);
			return 0;
		}
	}

	astman_send_ack(s, m, "Channel status will follow");

	if (!ast_strlen_zero(cvariables)) {
		AST_STANDARD_APP_ARGS(vars, variables);
	}

	/* if we look by name, we break after the first iteration */
	for (; c; c = ast_channel_iterator_next(iter)) {
		ast_channel_lock(c);

		if (!ast_strlen_zero(cvariables)) {
			int i;
			ast_str_reset(str);
			for (i = 0; i < vars.argc; i++) {
				char valbuf[512], *ret = NULL;

				if (vars.name[i][strlen(vars.name[i]) - 1] == ')') {
					if (ast_func_read(c, vars.name[i], valbuf, sizeof(valbuf)) < 0) {
						valbuf[0] = '\0';
					}
					ret = valbuf;
				} else {
					pbx_retrieve_variable(c, vars.name[i], &ret, valbuf, sizeof(valbuf), NULL);
				}

				ast_str_append(&str, 0, "Variable: %s=%s\r\n", vars.name[i], ret);
			}
		}

		channels++;
		if (c->_bridge) {
			snprintf(bridge, sizeof(bridge), "BridgedChannel: %s\r\nBridgedUniqueid: %s\r\n", c->_bridge->name, c->_bridge->uniqueid);
		} else {
			bridge[0] = '\0';
		}
		if (c->pbx) {
			if (c->cdr) {
				elapsed_seconds = now.tv_sec - c->cdr->start.tv_sec;
			}
			astman_append(s,
			"Event: Status\r\n"
			"Privilege: Call\r\n"
			"Channel: %s\r\n"
			"CallerIDNum: %s\r\n"
			"CallerIDName: %s\r\n"
			"ConnectedLineNum: %s\r\n"
			"ConnectedLineName: %s\r\n"
			"Accountcode: %s\r\n"
			"ChannelState: %d\r\n"
			"ChannelStateDesc: %s\r\n"
			"Context: %s\r\n"
			"Extension: %s\r\n"
			"Priority: %d\r\n"
			"Seconds: %ld\r\n"
			"%s"
			"Uniqueid: %s\r\n"
			"%s"
			"%s"
			"\r\n",
			c->name,
			S_COR(c->caller.id.number.valid, c->caller.id.number.str, "<unknown>"),
			S_COR(c->caller.id.name.valid, c->caller.id.name.str, "<unknown>"),
			S_COR(c->connected.id.number.valid, c->connected.id.number.str, "<unknown>"),
			S_COR(c->connected.id.name.valid, c->connected.id.name.str, "<unknown>"),
			c->accountcode,
			c->_state,
			ast_state2str(c->_state), c->context,
			c->exten, c->priority, (long)elapsed_seconds, bridge, c->uniqueid, ast_str_buffer(str), idText);
		} else {
			astman_append(s,
				"Event: Status\r\n"
				"Privilege: Call\r\n"
				"Channel: %s\r\n"
				"CallerIDNum: %s\r\n"
				"CallerIDName: %s\r\n"
				"ConnectedLineNum: %s\r\n"
				"ConnectedLineName: %s\r\n"
				"Account: %s\r\n"
				"State: %s\r\n"
				"%s"
				"Uniqueid: %s\r\n"
				"%s"
				"%s"
				"\r\n",
				c->name,
				S_COR(c->caller.id.number.valid, c->caller.id.number.str, "<unknown>"),
				S_COR(c->caller.id.name.valid, c->caller.id.name.str, "<unknown>"),
				S_COR(c->connected.id.number.valid, c->connected.id.number.str, "<unknown>"),
				S_COR(c->connected.id.name.valid, c->connected.id.name.str, "<unknown>"),
				c->accountcode,
				ast_state2str(c->_state), bridge, c->uniqueid,
				ast_str_buffer(str), idText);
		}

		ast_channel_unlock(c);
		c = ast_channel_unref(c);

		if (!all) {
			break;
		}
	}

	if (iter) {
		ast_channel_iterator_destroy(iter);
	}

	astman_append(s,
		"Event: StatusComplete\r\n"
		"%s"
		"Items: %d\r\n"
		"\r\n", idText, channels);

	ast_free(str);

	return 0;
}

static int action_sendtext(struct mansession *s, const struct message *m)
{
	struct ast_channel *c = NULL;
	const char *name = astman_get_header(m, "Channel");
	const char *textmsg = astman_get_header(m, "Message");
	int res = 0;

	if (ast_strlen_zero(name)) {
		astman_send_error(s, m, "No channel specified");
		return 0;
	}

	if (ast_strlen_zero(textmsg)) {
		astman_send_error(s, m, "No Message specified");
		return 0;
	}

	if (!(c = ast_channel_get_by_name(name))) {
		astman_send_error(s, m, "No such channel");
		return 0;
	}

	res = ast_sendtext(c, textmsg);
	c = ast_channel_unref(c);

	if (res >= 0) {
		astman_send_ack(s, m, "Success");
	} else {
		astman_send_error(s, m, "Failure");
	}

	return 0;
}

/*! \brief  action_redirect: The redirect manager command */
static int action_redirect(struct mansession *s, const struct message *m)
{
	char buf[256];
	const char *name = astman_get_header(m, "Channel");
	const char *name2 = astman_get_header(m, "ExtraChannel");
	const char *exten = astman_get_header(m, "Exten");
	const char *exten2 = astman_get_header(m, "ExtraExten");
	const char *context = astman_get_header(m, "Context");
	const char *context2 = astman_get_header(m, "ExtraContext");
	const char *priority = astman_get_header(m, "Priority");
	const char *priority2 = astman_get_header(m, "ExtraPriority");
	struct ast_channel *chan;
	struct ast_channel *chan2;
	int pi = 0;
	int pi2 = 0;
	int res;

	if (ast_strlen_zero(name)) {
		astman_send_error(s, m, "Channel not specified");
		return 0;
	}

	if (ast_strlen_zero(context)) {
		astman_send_error(s, m, "Context not specified");
		return 0;
	}
	if (ast_strlen_zero(exten)) {
		astman_send_error(s, m, "Exten not specified");
		return 0;
	}
	if (ast_strlen_zero(priority)) {
		astman_send_error(s, m, "Priority not specified");
		return 0;
	}
	if (sscanf(priority, "%30d", &pi) != 1) {
		pi = ast_findlabel_extension(NULL, context, exten, priority, NULL);
	}
	if (pi < 1) {
		astman_send_error(s, m, "Priority is invalid");
		return 0;
	}

	if (!ast_strlen_zero(name2) && !ast_strlen_zero(context2)) {
		/* We have an ExtraChannel and an ExtraContext */
		if (ast_strlen_zero(exten2)) {
			astman_send_error(s, m, "ExtraExten not specified");
			return 0;
		}
		if (ast_strlen_zero(priority2)) {
			astman_send_error(s, m, "ExtraPriority not specified");
			return 0;
		}
		if (sscanf(priority2, "%30d", &pi2) != 1) {
			pi2 = ast_findlabel_extension(NULL, context2, exten2, priority2, NULL);
		}
		if (pi2 < 1) {
			astman_send_error(s, m, "ExtraPriority is invalid");
			return 0;
		}
	}

	chan = ast_channel_get_by_name(name);
	if (!chan) {
		snprintf(buf, sizeof(buf), "Channel does not exist: %s", name);
		astman_send_error(s, m, buf);
		return 0;
	}
	if (ast_check_hangup_locked(chan)) {
		astman_send_error(s, m, "Redirect failed, channel not up.");
		chan = ast_channel_unref(chan);
		return 0;
	}

	if (ast_strlen_zero(name2)) {
		/* Single channel redirect in progress. */
		if (chan->pbx) {
			ast_channel_lock(chan);
			/* don't let the after-bridge code run the h-exten */
			ast_set_flag(chan, AST_FLAG_BRIDGE_HANGUP_DONT);
			ast_channel_unlock(chan);
		}
		res = ast_async_goto(chan, context, exten, pi);
		if (!res) {
			astman_send_ack(s, m, "Redirect successful");
		} else {
			astman_send_error(s, m, "Redirect failed");
		}
		chan = ast_channel_unref(chan);
		return 0;
	}

	chan2 = ast_channel_get_by_name(name2);
	if (!chan2) {
		snprintf(buf, sizeof(buf), "ExtraChannel does not exist: %s", name2);
		astman_send_error(s, m, buf);
		chan = ast_channel_unref(chan);
		return 0;
	}
	if (ast_check_hangup_locked(chan2)) {
		astman_send_error(s, m, "Redirect failed, extra channel not up.");
		chan2 = ast_channel_unref(chan2);
		chan = ast_channel_unref(chan);
		return 0;
	}

	/* Dual channel redirect in progress. */
	if (chan->pbx) {
		ast_channel_lock(chan);
		/* don't let the after-bridge code run the h-exten */
		ast_set_flag(chan, AST_FLAG_BRIDGE_HANGUP_DONT
			| AST_FLAG_BRIDGE_DUAL_REDIRECT_WAIT);
		ast_channel_unlock(chan);
	}
	if (chan2->pbx) {
		ast_channel_lock(chan2);
		/* don't let the after-bridge code run the h-exten */
		ast_set_flag(chan2, AST_FLAG_BRIDGE_HANGUP_DONT
			| AST_FLAG_BRIDGE_DUAL_REDIRECT_WAIT);
		ast_channel_unlock(chan2);
	}
	res = ast_async_goto(chan, context, exten, pi);
	if (!res) {
		if (!ast_strlen_zero(context2)) {
			res = ast_async_goto(chan2, context2, exten2, pi2);
		} else {
			res = ast_async_goto(chan2, context, exten, pi);
		}
		if (!res) {
			astman_send_ack(s, m, "Dual Redirect successful");
		} else {
			astman_send_error(s, m, "Secondary redirect failed");
		}
	} else {
		astman_send_error(s, m, "Redirect failed");
	}

	/* Release the bridge wait. */
	if (chan->pbx) {
		ast_channel_lock(chan);
		ast_clear_flag(chan, AST_FLAG_BRIDGE_DUAL_REDIRECT_WAIT);
		ast_channel_unlock(chan);
	}
	if (chan2->pbx) {
		ast_channel_lock(chan2);
		ast_clear_flag(chan2, AST_FLAG_BRIDGE_DUAL_REDIRECT_WAIT);
		ast_channel_unlock(chan2);
	}

	chan2 = ast_channel_unref(chan2);
	chan = ast_channel_unref(chan);
	return 0;
}

static int action_atxfer(struct mansession *s, const struct message *m)
{
	const char *name = astman_get_header(m, "Channel");
	const char *exten = astman_get_header(m, "Exten");
	const char *context = astman_get_header(m, "Context");
	struct ast_channel *chan = NULL;
	struct ast_call_feature *atxfer_feature = NULL;
	char *feature_code = NULL;

	if (ast_strlen_zero(name)) {
		astman_send_error(s, m, "No channel specified");
		return 0;
	}
	if (ast_strlen_zero(exten)) {
		astman_send_error(s, m, "No extension specified");
		return 0;
	}

	if (!(atxfer_feature = ast_find_call_feature("atxfer"))) {
		astman_send_error(s, m, "No attended transfer feature found");
		return 0;
	}

	if (!(chan = ast_channel_get_by_name(name))) {
		astman_send_error(s, m, "Channel specified does not exist");
		return 0;
	}

	if (!ast_strlen_zero(context)) {
		pbx_builtin_setvar_helper(chan, "TRANSFER_CONTEXT", context);
	}

	for (feature_code = atxfer_feature->exten; feature_code && *feature_code; ++feature_code) {
		struct ast_frame f = { AST_FRAME_DTMF, .subclass.integer = *feature_code };
		ast_queue_frame(chan, &f);
	}

	for (feature_code = (char *)exten; feature_code && *feature_code; ++feature_code) {
		struct ast_frame f = { AST_FRAME_DTMF, .subclass.integer = *feature_code };
		ast_queue_frame(chan, &f);
	}

	chan = ast_channel_unref(chan);

	astman_send_ack(s, m, "Atxfer successfully queued");

	return 0;
}

static int check_blacklist(const char *cmd)
{
	char *cmd_copy, *cur_cmd;
	char *cmd_words[MAX_BLACKLIST_CMD_LEN] = { NULL, };
	int i;

	cmd_copy = ast_strdupa(cmd);
	for (i = 0; i < MAX_BLACKLIST_CMD_LEN && (cur_cmd = strsep(&cmd_copy, " ")); i++) {
		cur_cmd = ast_strip(cur_cmd);
		if (ast_strlen_zero(cur_cmd)) {
			i--;
			continue;
		}

		cmd_words[i] = cur_cmd;
	}

	for (i = 0; i < ARRAY_LEN(command_blacklist); i++) {
		int j, match = 1;

		for (j = 0; command_blacklist[i].words[j]; j++) {
			if (ast_strlen_zero(cmd_words[j]) || strcasecmp(cmd_words[j], command_blacklist[i].words[j])) {
				match = 0;
				break;
			}
		}

		if (match) {
			return 1;
		}
	}

	return 0;
}

/*! \brief  Manager command "command" - execute CLI command */
static int action_command(struct mansession *s, const struct message *m)
{
	const char *cmd = astman_get_header(m, "Command");
	const char *id = astman_get_header(m, "ActionID");
	char *buf = NULL, *final_buf = NULL;
	char template[] = "/tmp/ast-ami-XXXXXX";	/* template for temporary file */
	int fd;
	off_t l;

	if (ast_strlen_zero(cmd)) {
		astman_send_error(s, m, "No command provided");
		return 0;
	}

	if (check_blacklist(cmd)) {
		astman_send_error(s, m, "Command blacklisted");
		return 0;
	}

	if ((fd = mkstemp(template)) < 0) {
		ast_log(AST_LOG_WARNING, "Failed to create temporary file for command: %s\n", strerror(errno));
		astman_send_error(s, m, "Command response construction error");
		return 0;
	}

	astman_append(s, "Response: Follows\r\nPrivilege: Command\r\n");
	if (!ast_strlen_zero(id)) {
		astman_append(s, "ActionID: %s\r\n", id);
	}
	/* FIXME: Wedge a ActionID response in here, waiting for later changes */
	ast_cli_command(fd, cmd);	/* XXX need to change this to use a FILE * */
	/* Determine number of characters available */
	if ((l = lseek(fd, 0, SEEK_END)) < 0) {
		ast_log(LOG_WARNING, "Failed to determine number of characters for command: %s\n", strerror(errno));
		goto action_command_cleanup;
	}

	/* This has a potential to overflow the stack.  Hence, use the heap. */
	buf = ast_malloc(l + 1);
	final_buf = ast_malloc(l + 1);

	if (!buf || !final_buf) {
		ast_log(LOG_WARNING, "Failed to allocate memory for temporary buffer\n");
		goto action_command_cleanup;
	}

	if (lseek(fd, 0, SEEK_SET) < 0) {
		ast_log(LOG_WARNING, "Failed to set position on temporary file for command: %s\n", strerror(errno));
		goto action_command_cleanup;
	}

	if (read(fd, buf, l) < 0) {
		ast_log(LOG_WARNING, "read() failed: %s\n", strerror(errno));
		goto action_command_cleanup;
	}

	buf[l] = '\0';
	term_strip(final_buf, buf, l);
	final_buf[l] = '\0';
	astman_append(s, "%s", final_buf);

action_command_cleanup:

	close(fd);
	unlink(template);
	astman_append(s, "--END COMMAND--\r\n\r\n");

	ast_free(buf);
	ast_free(final_buf);

	return 0;
}

/*! \brief helper function for originate */
struct fast_originate_helper {
	int timeout;
	format_t format;				/*!< Codecs used for a call */
	AST_DECLARE_STRING_FIELDS (
		AST_STRING_FIELD(tech);
		/*! data can contain a channel name, extension number, username, password, etc. */
		AST_STRING_FIELD(data);
		AST_STRING_FIELD(app);
		AST_STRING_FIELD(appdata);
		AST_STRING_FIELD(cid_name);
		AST_STRING_FIELD(cid_num);
		AST_STRING_FIELD(context);
		AST_STRING_FIELD(exten);
		AST_STRING_FIELD(idtext);
		AST_STRING_FIELD(account);
	);
	int priority;
	struct ast_variable *vars;
};

/*!
 * \internal
 *
 * \param doomed Struct to destroy.
 *
 * \return Nothing
 */
static void destroy_fast_originate_helper(struct fast_originate_helper *doomed)
{
	ast_variables_destroy(doomed->vars);
	ast_string_field_free_memory(doomed);
	ast_free(doomed);
}

static void *fast_originate(void *data)
{
	struct fast_originate_helper *in = data;
	int res;
	int reason = 0;
	struct ast_channel *chan = NULL, *chans[1];
	char requested_channel[AST_CHANNEL_NAME];

	if (!ast_strlen_zero(in->app)) {
		res = ast_pbx_outgoing_app(in->tech, in->format, (char *) in->data,
			in->timeout, in->app, in->appdata, &reason, 1,
			S_OR(in->cid_num, NULL),
			S_OR(in->cid_name, NULL),
			in->vars, in->account, &chan);
	} else {
		res = ast_pbx_outgoing_exten(in->tech, in->format, (char *) in->data,
			in->timeout, in->context, in->exten, in->priority, &reason, 1,
			S_OR(in->cid_num, NULL),
			S_OR(in->cid_name, NULL),
			in->vars, in->account, &chan);
	}
	/* Any vars memory was passed to the ast_pbx_outgoing_xxx() calls. */
	in->vars = NULL;

	if (!chan) {
		snprintf(requested_channel, AST_CHANNEL_NAME, "%s/%s", in->tech, in->data);
	}
	/* Tell the manager what happened with the channel */
	chans[0] = chan;
	ast_manager_event_multichan(EVENT_FLAG_CALL, "OriginateResponse", chan ? 1 : 0, chans,
		"%s"
		"Response: %s\r\n"
		"Channel: %s\r\n"
		"Context: %s\r\n"
		"Exten: %s\r\n"
		"Reason: %d\r\n"
		"Uniqueid: %s\r\n"
		"CallerIDNum: %s\r\n"
		"CallerIDName: %s\r\n",
		in->idtext, res ? "Failure" : "Success",
		chan ? chan->name : requested_channel, in->context, in->exten, reason,
		chan ? chan->uniqueid : "<null>",
		S_OR(in->cid_num, "<unknown>"),
		S_OR(in->cid_name, "<unknown>")
		);

	/* Locked by ast_pbx_outgoing_exten or ast_pbx_outgoing_app */
	if (chan) {
		ast_channel_unlock(chan);
	}
	destroy_fast_originate_helper(in);
	return NULL;
}

static int aocmessage_get_unit_entry(const struct message *m, struct ast_aoc_unit_entry *entry, unsigned int entry_num)
{
	const char *unitamount;
	const char *unittype;
	struct ast_str *str = ast_str_alloca(32);

	memset(entry, 0, sizeof(*entry));

	ast_str_set(&str, 0, "UnitAmount(%u)", entry_num);
	unitamount = astman_get_header(m, ast_str_buffer(str));

	ast_str_set(&str, 0, "UnitType(%u)", entry_num);
	unittype = astman_get_header(m, ast_str_buffer(str));

	if (!ast_strlen_zero(unitamount) && (sscanf(unitamount, "%30u", &entry->amount) == 1)) {
		entry->valid_amount = 1;
	}

	if (!ast_strlen_zero(unittype) && sscanf(unittype, "%30u", &entry->type) == 1) {
		entry->valid_type = 1;
	}

	return 0;
}

static int action_aocmessage(struct mansession *s, const struct message *m)
{
	const char *channel = astman_get_header(m, "Channel");
	const char *pchannel = astman_get_header(m, "ChannelPrefix");
	const char *msgtype = astman_get_header(m, "MsgType");
	const char *chargetype = astman_get_header(m, "ChargeType");
	const char *currencyname = astman_get_header(m, "CurrencyName");
	const char *currencyamount = astman_get_header(m, "CurrencyAmount");
	const char *mult = astman_get_header(m, "CurrencyMultiplier");
	const char *totaltype = astman_get_header(m, "TotalType");
	const char *aocbillingid = astman_get_header(m, "AOCBillingId");
	const char *association_id= astman_get_header(m, "ChargingAssociationId");
	const char *association_num = astman_get_header(m, "ChargingAssociationNumber");
	const char *association_plan = astman_get_header(m, "ChargingAssociationPlan");

	enum ast_aoc_type _msgtype;
	enum ast_aoc_charge_type _chargetype;
	enum ast_aoc_currency_multiplier _mult = AST_AOC_MULT_ONE;
	enum ast_aoc_total_type _totaltype = AST_AOC_TOTAL;
	enum ast_aoc_billing_id _billingid = AST_AOC_BILLING_NA;
	unsigned int _currencyamount = 0;
	int _association_id = 0;
	unsigned int _association_plan = 0;
	struct ast_channel *chan = NULL;

	struct ast_aoc_decoded *decoded = NULL;
	struct ast_aoc_encoded *encoded = NULL;
	size_t encoded_size = 0;

	if (ast_strlen_zero(channel) && ast_strlen_zero(pchannel)) {
		astman_send_error(s, m, "Channel and PartialChannel are not specified. Specify at least one of these.");
		goto aocmessage_cleanup;
	}

	if (!(chan = ast_channel_get_by_name(channel)) && !ast_strlen_zero(pchannel)) {
		chan = ast_channel_get_by_name_prefix(pchannel, strlen(pchannel));
	}

	if (!chan) {
		astman_send_error(s, m, "No such channel");
		goto aocmessage_cleanup;
	}

	if (ast_strlen_zero(msgtype) || (strcasecmp(msgtype, "d") && strcasecmp(msgtype, "e"))) {
		astman_send_error(s, m, "Invalid MsgType");
		goto aocmessage_cleanup;
	}

	if (ast_strlen_zero(chargetype)) {
		astman_send_error(s, m, "ChargeType not specified");
		goto aocmessage_cleanup;
	}

	_msgtype = strcasecmp(msgtype, "d") ? AST_AOC_E : AST_AOC_D;

	if (!strcasecmp(chargetype, "NA")) {
		_chargetype = AST_AOC_CHARGE_NA;
	} else if (!strcasecmp(chargetype, "Free")) {
		_chargetype = AST_AOC_CHARGE_FREE;
	} else if (!strcasecmp(chargetype, "Currency")) {
		_chargetype = AST_AOC_CHARGE_CURRENCY;
	} else if (!strcasecmp(chargetype, "Unit")) {
		_chargetype = AST_AOC_CHARGE_UNIT;
	} else {
		astman_send_error(s, m, "Invalid ChargeType");
		goto aocmessage_cleanup;
	}

	if (_chargetype == AST_AOC_CHARGE_CURRENCY) {

		if (ast_strlen_zero(currencyamount) || (sscanf(currencyamount, "%30u", &_currencyamount) != 1)) {
			astman_send_error(s, m, "Invalid CurrencyAmount, CurrencyAmount is a required when ChargeType is Currency");
			goto aocmessage_cleanup;
		}

		if (ast_strlen_zero(mult)) {
			astman_send_error(s, m, "ChargeMultiplier unspecified, ChargeMultiplier is required when ChargeType is Currency.");
			goto aocmessage_cleanup;
		} else if (!strcasecmp(mult, "onethousandth")) {
			_mult = AST_AOC_MULT_ONETHOUSANDTH;
		} else if (!strcasecmp(mult, "onehundredth")) {
			_mult = AST_AOC_MULT_ONEHUNDREDTH;
		} else if (!strcasecmp(mult, "onetenth")) {
			_mult = AST_AOC_MULT_ONETENTH;
		} else if (!strcasecmp(mult, "one")) {
			_mult = AST_AOC_MULT_ONE;
		} else if (!strcasecmp(mult, "ten")) {
			_mult = AST_AOC_MULT_TEN;
		} else if (!strcasecmp(mult, "hundred")) {
			_mult = AST_AOC_MULT_HUNDRED;
		} else if (!strcasecmp(mult, "thousand")) {
			_mult = AST_AOC_MULT_THOUSAND;
		} else {
			astman_send_error(s, m, "Invalid ChargeMultiplier");
			goto aocmessage_cleanup;
		}
	}

	/* create decoded object and start setting values */
	if (!(decoded = ast_aoc_create(_msgtype, _chargetype, 0))) {
			astman_send_error(s, m, "Message Creation Failed");
			goto aocmessage_cleanup;
	}

	if (_msgtype == AST_AOC_D) {
		if (!ast_strlen_zero(totaltype) && !strcasecmp(totaltype, "subtotal")) {
			_totaltype = AST_AOC_SUBTOTAL;
		}

		if (ast_strlen_zero(aocbillingid)) {
			/* ignore this is optional */
		} else if (!strcasecmp(aocbillingid, "Normal")) {
			_billingid = AST_AOC_BILLING_NORMAL;
		} else if (!strcasecmp(aocbillingid, "ReverseCharge")) {
			_billingid = AST_AOC_BILLING_REVERSE_CHARGE;
		} else if (!strcasecmp(aocbillingid, "CreditCard")) {
			_billingid = AST_AOC_BILLING_CREDIT_CARD;
		} else {
			astman_send_error(s, m, "Invalid AOC-D AOCBillingId");
			goto aocmessage_cleanup;
		}
	} else {
		if (ast_strlen_zero(aocbillingid)) {
			/* ignore this is optional */
		} else if (!strcasecmp(aocbillingid, "Normal")) {
			_billingid = AST_AOC_BILLING_NORMAL;
		} else if (!strcasecmp(aocbillingid, "ReverseCharge")) {
			_billingid = AST_AOC_BILLING_REVERSE_CHARGE;
		} else if (!strcasecmp(aocbillingid, "CreditCard")) {
			_billingid = AST_AOC_BILLING_CREDIT_CARD;
		} else if (!strcasecmp(aocbillingid, "CallFwdUnconditional")) {
			_billingid = AST_AOC_BILLING_CALL_FWD_UNCONDITIONAL;
		} else if (!strcasecmp(aocbillingid, "CallFwdBusy")) {
			_billingid = AST_AOC_BILLING_CALL_FWD_BUSY;
		} else if (!strcasecmp(aocbillingid, "CallFwdNoReply")) {
			_billingid = AST_AOC_BILLING_CALL_FWD_NO_REPLY;
		} else if (!strcasecmp(aocbillingid, "CallDeflection")) {
			_billingid = AST_AOC_BILLING_CALL_DEFLECTION;
		} else if (!strcasecmp(aocbillingid, "CallTransfer")) {
			_billingid = AST_AOC_BILLING_CALL_TRANSFER;
		} else {
			astman_send_error(s, m, "Invalid AOC-E AOCBillingId");
			goto aocmessage_cleanup;
		}

		if (!ast_strlen_zero(association_id) && (sscanf(association_id, "%30d", &_association_id) != 1)) {
			astman_send_error(s, m, "Invalid ChargingAssociationId");
			goto aocmessage_cleanup;
		}
		if (!ast_strlen_zero(association_plan) && (sscanf(association_plan, "%30u", &_association_plan) != 1)) {
			astman_send_error(s, m, "Invalid ChargingAssociationPlan");
			goto aocmessage_cleanup;
		}

		if (_association_id) {
			ast_aoc_set_association_id(decoded, _association_id);
		} else if (!ast_strlen_zero(association_num)) {
			ast_aoc_set_association_number(decoded, association_num, _association_plan);
		}
	}

	if (_chargetype == AST_AOC_CHARGE_CURRENCY) {
		ast_aoc_set_currency_info(decoded, _currencyamount, _mult, ast_strlen_zero(currencyname) ? NULL : currencyname);
	} else if (_chargetype == AST_AOC_CHARGE_UNIT) {
		struct ast_aoc_unit_entry entry;
		int i;

		/* multiple unit entries are possible, lets get them all */
		for (i = 0; i < 32; i++) {
			if (aocmessage_get_unit_entry(m, &entry, i)) {
				break; /* that's the end then */
			}

			ast_aoc_add_unit_entry(decoded, entry.valid_amount, entry.amount, entry.valid_type, entry.type);
		}

		/* at least one unit entry is required */
		if (!i) {
			astman_send_error(s, m, "Invalid UnitAmount(0), At least one valid unit entry is required when ChargeType is set to Unit");
			goto aocmessage_cleanup;
		}

	}

	ast_aoc_set_billing_id(decoded, _billingid);
	ast_aoc_set_total_type(decoded, _totaltype);


	if ((encoded = ast_aoc_encode(decoded, &encoded_size, NULL)) && !ast_indicate_data(chan, AST_CONTROL_AOC, encoded, encoded_size)) {
		astman_send_ack(s, m, "AOC Message successfully queued on channel");
	} else {
		astman_send_error(s, m, "Error encoding AOC message, could not queue onto channel");
	}

aocmessage_cleanup:

	ast_aoc_destroy_decoded(decoded);
	ast_aoc_destroy_encoded(encoded);

	if (chan) {
		chan = ast_channel_unref(chan);
	}
	return 0;
}

static int action_originate(struct mansession *s, const struct message *m)
{
	const char *name = astman_get_header(m, "Channel");
	const char *exten = astman_get_header(m, "Exten");
	const char *context = astman_get_header(m, "Context");
	const char *priority = astman_get_header(m, "Priority");
	const char *timeout = astman_get_header(m, "Timeout");
	const char *callerid = astman_get_header(m, "CallerID");
	const char *account = astman_get_header(m, "Account");
	const char *app = astman_get_header(m, "Application");
	const char *appdata = astman_get_header(m, "Data");
	const char *async = astman_get_header(m, "Async");
	const char *id = astman_get_header(m, "ActionID");
	const char *codecs = astman_get_header(m, "Codecs");
	struct ast_variable *vars;
	char *tech, *data;
	char *l = NULL, *n = NULL;
	int pi = 0;
	int res;
	int to = 30000;
	int reason = 0;
	char tmp[256];
	char tmp2[256];
	format_t format = AST_FORMAT_SLINEAR;

	pthread_t th;
	if (ast_strlen_zero(name)) {
		astman_send_error(s, m, "Channel not specified");
		return 0;
	}
	if (!ast_strlen_zero(priority) && (sscanf(priority, "%30d", &pi) != 1)) {
		if ((pi = ast_findlabel_extension(NULL, context, exten, priority, NULL)) < 1) {
			astman_send_error(s, m, "Invalid priority");
			return 0;
		}
	}
	if (!ast_strlen_zero(timeout) && (sscanf(timeout, "%30d", &to) != 1)) {
		astman_send_error(s, m, "Invalid timeout");
		return 0;
	}
	ast_copy_string(tmp, name, sizeof(tmp));
	tech = tmp;
	data = strchr(tmp, '/');
	if (!data) {
		astman_send_error(s, m, "Invalid channel");
		return 0;
	}
	*data++ = '\0';
	ast_copy_string(tmp2, callerid, sizeof(tmp2));
	ast_callerid_parse(tmp2, &n, &l);
	if (n) {
		if (ast_strlen_zero(n)) {
			n = NULL;
		}
	}
	if (l) {
		ast_shrink_phone_number(l);
		if (ast_strlen_zero(l)) {
			l = NULL;
		}
	}
	if (!ast_strlen_zero(codecs)) {
		format = 0;
		ast_parse_allow_disallow(NULL, &format, codecs, 1);
	}
	if (!ast_strlen_zero(app) && s->session) {
		int bad_appdata = 0;
		/* To run the System application (or anything else that goes to
		 * shell), you must have the additional System privilege */
		if (!(s->session->writeperm & EVENT_FLAG_SYSTEM)
			&& (
				strcasestr(app, "system") ||      /* System(rm -rf /)
				                                     TrySystem(rm -rf /)       */
				strcasestr(app, "exec") ||        /* Exec(System(rm -rf /))
				                                     TryExec(System(rm -rf /)) */
				strcasestr(app, "agi") ||         /* AGI(/bin/rm,-rf /)
				                                     EAGI(/bin/rm,-rf /)       */
				strcasestr(app, "mixmonitor") ||  /* MixMonitor(blah,,rm -rf)  */
				strcasestr(app, "externalivr") || /* ExternalIVR(rm -rf)       */
				(strstr(appdata, "SHELL") && (bad_appdata = 1)) ||       /* NoOp(${SHELL(rm -rf /)})  */
				(strstr(appdata, "EVAL") && (bad_appdata = 1))           /* NoOp(${EVAL(${some_var_containing_SHELL})}) */
				)) {
			char error_buf[64];
			snprintf(error_buf, sizeof(error_buf), "Originate Access Forbidden: %s", bad_appdata ? "Data" : "Application");
			astman_send_error(s, m, error_buf);
			return 0;
		}
	}
	/* Allocate requested channel variables */
	vars = astman_get_variables(m);

	if (ast_true(async)) {
		struct fast_originate_helper *fast;

		fast = ast_calloc(1, sizeof(*fast));
		if (!fast || ast_string_field_init(fast, 252)) {
			ast_free(fast);
			ast_variables_destroy(vars);
			res = -1;
		} else {
			if (!ast_strlen_zero(id)) {
				ast_string_field_build(fast, idtext, "ActionID: %s\r\n", id);
			}
			ast_string_field_set(fast, tech, tech);
			ast_string_field_set(fast, data, data);
			ast_string_field_set(fast, app, app);
			ast_string_field_set(fast, appdata, appdata);
			ast_string_field_set(fast, cid_num, l);
			ast_string_field_set(fast, cid_name, n);
			ast_string_field_set(fast, context, context);
			ast_string_field_set(fast, exten, exten);
			ast_string_field_set(fast, account, account);
			fast->vars = vars;
			fast->format = format;
			fast->timeout = to;
			fast->priority = pi;
			if (ast_pthread_create_detached(&th, NULL, fast_originate, fast)) {
				destroy_fast_originate_helper(fast);
				res = -1;
			} else {
				res = 0;
			}
		}
	} else if (!ast_strlen_zero(app)) {
		res = ast_pbx_outgoing_app(tech, format, data, to, app, appdata, &reason, 1, l, n, vars, account, NULL);
		/* Any vars memory was passed to ast_pbx_outgoing_app(). */
	} else {
		if (exten && context && pi) {
			res = ast_pbx_outgoing_exten(tech, format, data, to, context, exten, pi, &reason, 1, l, n, vars, account, NULL);
			/* Any vars memory was passed to ast_pbx_outgoing_exten(). */
		} else {
			astman_send_error(s, m, "Originate with 'Exten' requires 'Context' and 'Priority'");
			ast_variables_destroy(vars);
			return 0;
		}
	}
	if (!res) {
		astman_send_ack(s, m, "Originate successfully queued");
	} else {
		astman_send_error(s, m, "Originate failed");
	}
	return 0;
}

static int action_mailboxstatus(struct mansession *s, const struct message *m)
{
	const char *mailbox = astman_get_header(m, "Mailbox");
	int ret;

	if (ast_strlen_zero(mailbox)) {
		astman_send_error(s, m, "Mailbox not specified");
		return 0;
	}
	ret = ast_app_has_voicemail(mailbox, NULL);
	astman_start_ack(s, m);
	astman_append(s, "Message: Mailbox Status\r\n"
			 "Mailbox: %s\r\n"
			 "Waiting: %d\r\n\r\n", mailbox, ret);
	return 0;
}

static int action_mailboxcount(struct mansession *s, const struct message *m)
{
	const char *mailbox = astman_get_header(m, "Mailbox");
	int newmsgs = 0, oldmsgs = 0, urgentmsgs = 0;;

	if (ast_strlen_zero(mailbox)) {
		astman_send_error(s, m, "Mailbox not specified");
		return 0;
	}
	ast_app_inboxcount2(mailbox, &urgentmsgs, &newmsgs, &oldmsgs);
	astman_start_ack(s, m);
	astman_append(s,   "Message: Mailbox Message Count\r\n"
			   "Mailbox: %s\r\n"
			   "UrgMessages: %d\r\n"
			   "NewMessages: %d\r\n"
			   "OldMessages: %d\r\n"
			   "\r\n",
			   mailbox, urgentmsgs, newmsgs, oldmsgs);
	return 0;
}

static int action_extensionstate(struct mansession *s, const struct message *m)
{
	const char *exten = astman_get_header(m, "Exten");
	const char *context = astman_get_header(m, "Context");
	char hint[256] = "";
	int status;
	if (ast_strlen_zero(exten)) {
		astman_send_error(s, m, "Extension not specified");
		return 0;
	}
	if (ast_strlen_zero(context)) {
		context = "default";
	}
	status = ast_extension_state(NULL, context, exten);
	ast_get_hint(hint, sizeof(hint) - 1, NULL, 0, NULL, context, exten);
	astman_start_ack(s, m);
	astman_append(s,   "Message: Extension Status\r\n"
			   "Exten: %s\r\n"
			   "Context: %s\r\n"
			   "Hint: %s\r\n"
			   "Status: %d\r\n\r\n",
			   exten, context, hint, status);
	return 0;
}

static int action_timeout(struct mansession *s, const struct message *m)
{
	struct ast_channel *c;
	const char *name = astman_get_header(m, "Channel");
	double timeout = atof(astman_get_header(m, "Timeout"));
	struct timeval when = { timeout, 0 };

	if (ast_strlen_zero(name)) {
		astman_send_error(s, m, "No channel specified");
		return 0;
	}

	if (!timeout || timeout < 0) {
		astman_send_error(s, m, "No timeout specified");
		return 0;
	}

	if (!(c = ast_channel_get_by_name(name))) {
		astman_send_error(s, m, "No such channel");
		return 0;
	}

	when.tv_usec = (timeout - when.tv_sec) * 1000000.0;

	ast_channel_lock(c);
	ast_channel_setwhentohangup_tv(c, when);
	ast_channel_unlock(c);
	c = ast_channel_unref(c);

	astman_send_ack(s, m, "Timeout Set");

	return 0;
}

static int whitefilter_cmp_fn(void *obj, void *arg, void *data, int flags)
{
	regex_t *regex_filter = obj;
	const char *eventdata = arg;
	int *result = data;

	if (!regexec(regex_filter, eventdata, 0, NULL, 0)) {
		*result = 1;
		return (CMP_MATCH | CMP_STOP);
	}

	return 0;
}

static int blackfilter_cmp_fn(void *obj, void *arg, void *data, int flags)
{
	regex_t *regex_filter = obj;
	const char *eventdata = arg;
	int *result = data;

	if (!regexec(regex_filter, eventdata, 0, NULL, 0)) {
		*result = 0;
		return (CMP_MATCH | CMP_STOP);
	}

	*result = 1;
	return 0;
}

static int match_filter(struct mansession *s, char *eventdata)
{
	int result = 0;

	ast_debug(3, "Examining event:\n%s\n", eventdata);
	if (!ao2_container_count(s->session->whitefilters) && !ao2_container_count(s->session->blackfilters)) {
		return 1; /* no filtering means match all */
	} else if (ao2_container_count(s->session->whitefilters) && !ao2_container_count(s->session->blackfilters)) {
		/* white filters only: implied black all filter processed first, then white filters */
		ao2_t_callback_data(s->session->whitefilters, OBJ_NODATA, whitefilter_cmp_fn, eventdata, &result, "find filter in session filter container"); 
	} else if (!ao2_container_count(s->session->whitefilters) && ao2_container_count(s->session->blackfilters)) {
		/* black filters only: implied white all filter processed first, then black filters */
		ao2_t_callback_data(s->session->blackfilters, OBJ_NODATA, blackfilter_cmp_fn, eventdata, &result, "find filter in session filter container"); 
	} else {
		/* white and black filters: implied black all filter processed first, then white filters, and lastly black filters */
		ao2_t_callback_data(s->session->whitefilters, OBJ_NODATA, whitefilter_cmp_fn, eventdata, &result, "find filter in session filter container"); 
		if (result) {
			result = 0;
			ao2_t_callback_data(s->session->blackfilters, OBJ_NODATA, blackfilter_cmp_fn, eventdata, &result, "find filter in session filter container"); 
		}
	}

	return result;
}

/*!
 * Send any applicable events to the client listening on this socket.
 * Wait only for a finite time on each event, and drop all events whether
 * they are successfully sent or not.
 */
static int process_events(struct mansession *s)
{
	int ret = 0;

	ao2_lock(s->session);
	if (s->session->f != NULL) {
		struct eventqent *eqe = s->session->last_ev;

		while ((eqe = advance_event(eqe))) {
			if (!ret && s->session->authenticated &&
			    (s->session->readperm & eqe->category) == eqe->category &&
			    (s->session->send_events & eqe->category) == eqe->category) {
					if (match_filter(s, eqe->eventdata)) {
						if (send_string(s, eqe->eventdata) < 0)
							ret = -1;	/* don't send more */
					}
			}
			s->session->last_ev = eqe;
		}
	}
	ao2_unlock(s->session);
	return ret;
}

static int action_userevent(struct mansession *s, const struct message *m)
{
	const char *event = astman_get_header(m, "UserEvent");
	struct ast_str *body = ast_str_thread_get(&userevent_buf, 16);
	int x;

	ast_str_reset(body);

	for (x = 0; x < m->hdrcount; x++) {
		if (strncasecmp("UserEvent:", m->headers[x], strlen("UserEvent:"))) {
			ast_str_append(&body, 0, "%s\r\n", m->headers[x]);
		}
	}

	astman_send_ack(s, m, "Event Sent");	
	manager_event(EVENT_FLAG_USER, "UserEvent", "UserEvent: %s\r\n%s", event, ast_str_buffer(body));
	return 0;
}

/*! \brief Show PBX core settings information */
static int action_coresettings(struct mansession *s, const struct message *m)
{
	const char *actionid = astman_get_header(m, "ActionID");
	char idText[150];

	if (!ast_strlen_zero(actionid)) {
		snprintf(idText, sizeof(idText), "ActionID: %s\r\n", actionid);
	} else {
		idText[0] = '\0';
	}

	astman_append(s, "Response: Success\r\n"
			"%s"
			"AMIversion: %s\r\n"
			"AsteriskVersion: %s\r\n"
			"SystemName: %s\r\n"
			"CoreMaxCalls: %d\r\n"
			"CoreMaxLoadAvg: %f\r\n"
			"CoreRunUser: %s\r\n"
			"CoreRunGroup: %s\r\n"
			"CoreMaxFilehandles: %d\r\n"
			"CoreRealTimeEnabled: %s\r\n"
			"CoreCDRenabled: %s\r\n"
			"CoreHTTPenabled: %s\r\n"
			"\r\n",
			idText,
			AMI_VERSION,
			ast_get_version(),
			ast_config_AST_SYSTEM_NAME,
			option_maxcalls,
			option_maxload,
			ast_config_AST_RUN_USER,
			ast_config_AST_RUN_GROUP,
			option_maxfiles,
			AST_CLI_YESNO(ast_realtime_enabled()),
			AST_CLI_YESNO(check_cdr_enabled()),
			AST_CLI_YESNO(check_webmanager_enabled())
			);
	return 0;
}

/*! \brief Show PBX core status information */
static int action_corestatus(struct mansession *s, const struct message *m)
{
	const char *actionid = astman_get_header(m, "ActionID");
	char idText[150];
	char startuptime[150], startupdate[150];
	char reloadtime[150], reloaddate[150];
	struct ast_tm tm;

	if (!ast_strlen_zero(actionid)) {
		snprintf(idText, sizeof(idText), "ActionID: %s\r\n", actionid);
	} else {
		idText[0] = '\0';
	}

	ast_localtime(&ast_startuptime, &tm, NULL);
	ast_strftime(startuptime, sizeof(startuptime), "%H:%M:%S", &tm);
	ast_strftime(startupdate, sizeof(startupdate), "%Y-%m-%d", &tm);
	ast_localtime(&ast_lastreloadtime, &tm, NULL);
	ast_strftime(reloadtime, sizeof(reloadtime), "%H:%M:%S", &tm);
	ast_strftime(reloaddate, sizeof(reloaddate), "%Y-%m-%d", &tm);

	astman_append(s, "Response: Success\r\n"
			"%s"
			"CoreStartupDate: %s\r\n"
			"CoreStartupTime: %s\r\n"
			"CoreReloadDate: %s\r\n"
			"CoreReloadTime: %s\r\n"
			"CoreCurrentCalls: %d\r\n"
			"\r\n",
			idText,
			startupdate,
			startuptime,
			reloaddate,
			reloadtime,
			ast_active_channels()
			);
	return 0;
}

/*! \brief Send a reload event */
static int action_reload(struct mansession *s, const struct message *m)
{
	const char *module = astman_get_header(m, "Module");
	int res = ast_module_reload(S_OR(module, NULL));

	switch (res) {
	case -1:
		astman_send_error(s, m, "A reload is in progress");
		break;
	case 0:
		astman_send_error(s, m, "No such module");
		break;
	case 1:
		astman_send_error(s, m, "Module does not support reload");
		break;
	case 2:
		astman_send_ack(s, m, "Module Reloaded");
		break;
	default:
		astman_send_error(s, m, "An unknown error occurred");
		break;
	}
	return 0;
}

/*! \brief  Manager command "CoreShowChannels" - List currently defined channels
 *          and some information about them. */
static int action_coreshowchannels(struct mansession *s, const struct message *m)
{
	const char *actionid = astman_get_header(m, "ActionID");
	char idText[256];
	struct ast_channel *c = NULL;
	int numchans = 0;
	int duration, durh, durm, durs;
	struct ast_channel_iterator *iter;

	if (!ast_strlen_zero(actionid)) {
		snprintf(idText, sizeof(idText), "ActionID: %s\r\n", actionid);
	} else {
		idText[0] = '\0';
	}

	if (!(iter = ast_channel_iterator_all_new())) {
		astman_send_error(s, m, "Memory Allocation Failure");
		return 1;
	}

	astman_send_listack(s, m, "Channels will follow", "start");

	for (; (c = ast_channel_iterator_next(iter)); ast_channel_unref(c)) {
		struct ast_channel *bc;
		char durbuf[10] = "";

		ast_channel_lock(c);

		bc = ast_bridged_channel(c);
		if (c->cdr && !ast_tvzero(c->cdr->start)) {
			duration = (int)(ast_tvdiff_ms(ast_tvnow(), c->cdr->start) / 1000);
			durh = duration / 3600;
			durm = (duration % 3600) / 60;
			durs = duration % 60;
			snprintf(durbuf, sizeof(durbuf), "%02d:%02d:%02d", durh, durm, durs);
		}

		astman_append(s,
			"Event: CoreShowChannel\r\n"
			"%s"
			"Channel: %s\r\n"
			"UniqueID: %s\r\n"
			"Context: %s\r\n"
			"Extension: %s\r\n"
			"Priority: %d\r\n"
			"ChannelState: %d\r\n"
			"ChannelStateDesc: %s\r\n"
			"Application: %s\r\n"
			"ApplicationData: %s\r\n"
			"CallerIDnum: %s\r\n"
			"CallerIDname: %s\r\n"
			"ConnectedLineNum: %s\r\n"
			"ConnectedLineName: %s\r\n"
			"Duration: %s\r\n"
			"AccountCode: %s\r\n"
			"BridgedChannel: %s\r\n"
			"BridgedUniqueID: %s\r\n"
			"\r\n", idText, c->name, c->uniqueid, c->context, c->exten, c->priority, c->_state,
			ast_state2str(c->_state), c->appl ? c->appl : "", c->data ? S_OR(c->data, "") : "",
			S_COR(c->caller.id.number.valid, c->caller.id.number.str, ""),
			S_COR(c->caller.id.name.valid, c->caller.id.name.str, ""),
			S_COR(c->connected.id.number.valid, c->connected.id.number.str, ""),
			S_COR(c->connected.id.name.valid, c->connected.id.name.str, ""),
			durbuf, S_OR(c->accountcode, ""), bc ? bc->name : "", bc ? bc->uniqueid : "");

		ast_channel_unlock(c);

		numchans++;
	}

	astman_append(s,
		"Event: CoreShowChannelsComplete\r\n"
		"EventList: Complete\r\n"
		"ListItems: %d\r\n"
		"%s"
		"\r\n", numchans, idText);

	ast_channel_iterator_destroy(iter);

	return 0;
}

/* Manager function to check if module is loaded */
static int manager_modulecheck(struct mansession *s, const struct message *m)
{
	int res;
	const char *module = astman_get_header(m, "Module");
	const char *id = astman_get_header(m, "ActionID");
	char idText[256];
#if !defined(LOW_MEMORY)
	const char *version;
#endif
	char filename[PATH_MAX];
	char *cut;

	ast_copy_string(filename, module, sizeof(filename));
	if ((cut = strchr(filename, '.'))) {
		*cut = '\0';
	} else {
		cut = filename + strlen(filename);
	}
	snprintf(cut, (sizeof(filename) - strlen(filename)) - 1, ".so");
	ast_log(LOG_DEBUG, "**** ModuleCheck .so file %s\n", filename);
	res = ast_module_check(filename);
	if (!res) {
		astman_send_error(s, m, "Module not loaded");
		return 0;
	}
	snprintf(cut, (sizeof(filename) - strlen(filename)) - 1, ".c");
	ast_log(LOG_DEBUG, "**** ModuleCheck .c file %s\n", filename);
#if !defined(LOW_MEMORY)
	version = ast_file_version_find(filename);
#endif

	if (!ast_strlen_zero(id)) {
		snprintf(idText, sizeof(idText), "ActionID: %s\r\n", id);
	} else {
		idText[0] = '\0';
	}
	astman_append(s, "Response: Success\r\n%s", idText);
#if !defined(LOW_MEMORY)
	astman_append(s, "Version: %s\r\n\r\n", version ? version : "");
#endif
	return 0;
}

static int manager_moduleload(struct mansession *s, const struct message *m)
{
	int res;
	const char *module = astman_get_header(m, "Module");
	const char *loadtype = astman_get_header(m, "LoadType");

	if (!loadtype || strlen(loadtype) == 0) {
		astman_send_error(s, m, "Incomplete ModuleLoad action.");
	}
	if ((!module || strlen(module) == 0) && strcasecmp(loadtype, "reload") != 0) {
		astman_send_error(s, m, "Need module name");
	}

	if (!strcasecmp(loadtype, "load")) {
		res = ast_load_resource(module);
		if (res) {
			astman_send_error(s, m, "Could not load module.");
		} else {
			astman_send_ack(s, m, "Module loaded.");
		}
	} else if (!strcasecmp(loadtype, "unload")) {
		res = ast_unload_resource(module, AST_FORCE_SOFT);
		if (res) {
			astman_send_error(s, m, "Could not unload module.");
		} else {
			astman_send_ack(s, m, "Module unloaded.");
		}
	} else if (!strcasecmp(loadtype, "reload")) {
		if (!ast_strlen_zero(module)) {
			res = ast_module_reload(module);
			if (res == 0) {
				astman_send_error(s, m, "No such module.");
			} else if (res == 1) {
				astman_send_error(s, m, "Module does not support reload action.");
			} else {
				astman_send_ack(s, m, "Module reloaded.");
			}
		} else {
			ast_module_reload(NULL);	/* Reload all modules */
			astman_send_ack(s, m, "All modules reloaded");
		}
	} else
		astman_send_error(s, m, "Incomplete ModuleLoad action.");
	return 0;
}

/*
 * Done with the action handlers here, we start with the code in charge
 * of accepting connections and serving them.
 * accept_thread() forks a new thread for each connection, session_do(),
 * which in turn calls get_input() repeatedly until a full message has
 * been accumulated, and then invokes process_message() to pass it to
 * the appropriate handler.
 */

/*
 * Process an AMI message, performing desired action.
 * Return 0 on success, -1 on error that require the session to be destroyed.
 */
static int process_message(struct mansession *s, const struct message *m)
{
	int ret = 0;
	struct manager_action *act_found;
	const char *user;
	const char *action;

	action = __astman_get_header(m, "Action", GET_HEADER_SKIP_EMPTY);
	if (ast_strlen_zero(action)) {
		report_req_bad_format(s, "NONE");
		mansession_lock(s);
		astman_send_error(s, m, "Missing action in request");
		mansession_unlock(s);
		return 0;
	}

	if (!s->session->authenticated
		&& strcasecmp(action, "Login")
		&& strcasecmp(action, "Logoff")
		&& strcasecmp(action, "Challenge")) {
		if (!s->session->authenticated) {
			report_req_not_allowed(s, action);
		}
		mansession_lock(s);
		astman_send_error(s, m, "Permission denied");
		mansession_unlock(s);
		return 0;
	}

	if (!allowmultiplelogin
		&& !s->session->authenticated
		&& (!strcasecmp(action, "Login")
			|| !strcasecmp(action, "Challenge"))) {
		user = astman_get_header(m, "Username");

		if (!ast_strlen_zero(user) && check_manager_session_inuse(user)) {
			report_session_limit(s);
			sleep(1);
			mansession_lock(s);
			astman_send_error(s, m, "Login Already In Use");
			mansession_unlock(s);
			return -1;
		}
	}

	act_found = action_find(action);
	if (act_found) {
		/* Found the requested AMI action. */
		int acted = 0;

		if ((s->session->writeperm & act_found->authority)
			|| act_found->authority == 0) {
			/* We have the authority to execute the action. */
			ao2_lock(act_found);
			if (act_found->registered && act_found->func) {
				ast_debug(1, "Running action '%s'\n", act_found->action);
				++act_found->active_count;
				ao2_unlock(act_found);
				ret = act_found->func(s, m);
				acted = 1;
				ao2_lock(act_found);
				--act_found->active_count;
			}
			ao2_unlock(act_found);
		}
		if (!acted) {
			/*
			 * We did not execute the action because access was denied, it
			 * was no longer registered, or no action was really registered.
			 * Complain about it and leave.
			 */
			report_req_not_allowed(s, action);
			mansession_lock(s);
			astman_send_error(s, m, "Permission denied");
			mansession_unlock(s);
		}
		ao2_t_ref(act_found, -1, "done with found action object");
	} else {
		char buf[512];

		report_req_bad_format(s, action);
		snprintf(buf, sizeof(buf), "Invalid/unknown command: %s. Use Action: ListCommands to show available commands.", action);
		mansession_lock(s);
		astman_send_error(s, m, buf);
		mansession_unlock(s);
	}
	if (ret) {
		return ret;
	}
	/* Once done with our message, deliver any pending events unless the
	   requester doesn't want them as part of this response.
	*/
	if (ast_strlen_zero(astman_get_header(m, "SuppressEvents"))) {
		return process_events(s);
	} else {
		return ret;
	}
}

/*!
 * Read one full line (including crlf) from the manager socket.
 * \note \verbatim
 * \r\n is the only valid terminator for the line.
 * (Note that, later, '\0' will be considered as the end-of-line marker,
 * so everything between the '\0' and the '\r\n' will not be used).
 * Also note that we assume output to have at least "maxlen" space.
 * \endverbatim
 */
static int get_input(struct mansession *s, char *output)
{
	int res, x;
	int maxlen = sizeof(s->session->inbuf) - 1;
	char *src = s->session->inbuf;
	int timeout = -1;
	time_t now;

	/*
	 * Look for \r\n within the buffer. If found, copy to the output
	 * buffer and return, trimming the \r\n (not used afterwards).
	 */
	for (x = 0; x < s->session->inlen; x++) {
		int cr;	/* set if we have \r */
		if (src[x] == '\r' && x+1 < s->session->inlen && src[x + 1] == '\n') {
			cr = 2;	/* Found. Update length to include \r\n */
		} else if (src[x] == '\n') {
			cr = 1;	/* also accept \n only */
		} else {
			continue;
		}
		memmove(output, src, x);	/*... but trim \r\n */
		output[x] = '\0';		/* terminate the string */
		x += cr;			/* number of bytes used */
		s->session->inlen -= x;			/* remaining size */
		memmove(src, src + x, s->session->inlen); /* remove used bytes */
		return 1;
	}
	if (s->session->inlen >= maxlen) {
		/* no crlf found, and buffer full - sorry, too long for us */
		ast_log(LOG_WARNING, "Discarding message from %s. Line too long: %.25s...\n", ast_inet_ntoa(s->session->sin.sin_addr), src);
		s->session->inlen = 0;
		s->parsing = MESSAGE_LINE_TOO_LONG;
	}
	res = 0;
	while (res == 0) {
		/* calculate a timeout if we are not authenticated */
		if (!s->session->authenticated) {
			if(time(&now) == -1) {
				ast_log(LOG_ERROR, "error executing time(): %s\n", strerror(errno));
				return -1;
			}

			timeout = (authtimeout - (now - s->session->authstart)) * 1000;
			if (timeout < 0) {
				/* we have timed out */
				return 0;
			}
		}

		ao2_lock(s->session);
		if (s->session->pending_event) {
			s->session->pending_event = 0;
			ao2_unlock(s->session);
			return 0;
		}
		s->session->waiting_thread = pthread_self();
		ao2_unlock(s->session);

		res = ast_wait_for_input(s->session->fd, timeout);

		ao2_lock(s->session);
		s->session->waiting_thread = AST_PTHREADT_NULL;
		ao2_unlock(s->session);
	}
	if (res < 0) {
		/* If we get a signal from some other thread (typically because
		 * there are new events queued), return 0 to notify the caller.
		 */
		if (errno == EINTR || errno == EAGAIN) {
			return 0;
		}
		ast_log(LOG_WARNING, "poll() returned error: %s\n", strerror(errno));
		return -1;
	}

	ao2_lock(s->session);
	res = fread(src + s->session->inlen, 1, maxlen - s->session->inlen, s->session->f);
	if (res < 1) {
		res = -1;	/* error return */
	} else {
		s->session->inlen += res;
		src[s->session->inlen] = '\0';
		res = 0;
	}
	ao2_unlock(s->session);
	return res;
}

/*!
 * \internal
 * \brief Error handling for sending parse errors. This function handles locking, and clearing the
 * parse error flag.
 *
 * \param s AMI session to process action request.
 * \param m Message that's in error.
 * \param error Error message to send.
 */
static void handle_parse_error(struct mansession *s, struct message *m, char *error)
{
	mansession_lock(s);
	astman_send_error(s, m, error);
	s->parsing = MESSAGE_OKAY;
	mansession_unlock(s);
}

/*!
 * \internal
 * \brief Read and process an AMI action request.
 *
 * \param s AMI session to process action request.
 *
 * \retval 0 Retain AMI connection for next command.
 * \retval -1 Drop AMI connection due to logoff or connection error.
 */
static int do_message(struct mansession *s)
{
	struct message m = { 0 };
	char header_buf[sizeof(s->session->inbuf)] = { '\0' };
	int res;
	int idx;
	int hdr_loss;
	time_t now;

	hdr_loss = 0;
	for (;;) {
		/* Check if any events are pending and do them if needed */
		if (process_events(s)) {
			res = -1;
			break;
		}
		res = get_input(s, header_buf);
		if (res == 0) {
			/* No input line received. */
			if (!s->session->authenticated) {
				if (time(&now) == -1) {
					ast_log(LOG_ERROR, "error executing time(): %s\n", strerror(errno));
					res = -1;
					break;
				}

				if (now - s->session->authstart > authtimeout) {
					if (displayconnects) {
						ast_verb(2, "Client from %s, failed to authenticate in %d seconds\n", ast_inet_ntoa(s->session->sin.sin_addr), authtimeout);
					}
					res = -1;
					break;
				}
			}
			continue;
		} else if (res > 0) {
			/* Input line received. */
			if (ast_strlen_zero(header_buf)) {
				if (hdr_loss) {
					mansession_lock(s);
					astman_send_error(s, &m, "Too many lines in message or allocation failure");
					mansession_unlock(s);
					res = 0;
				} else {
					switch (s->parsing) {
					case MESSAGE_OKAY:
						res = process_message(s, &m) ? -1 : 0;
						break;
					case MESSAGE_LINE_TOO_LONG:
						handle_parse_error(s, &m, "Failed to parse message: line too long");
						res = 0;
						break;
					}
				}
				break;
			} else if (m.hdrcount < ARRAY_LEN(m.headers)) {
				m.headers[m.hdrcount] = ast_strdup(header_buf);
				if (!m.headers[m.hdrcount]) {
					/* Allocation failure. */
					hdr_loss = 1;
				} else {
					++m.hdrcount;
				}
			} else {
				/* Too many lines in message. */
				hdr_loss = 1;
			}
		} else {
			/* Input error. */
			break;
		}
	}

	/* Free AMI request headers. */
	for (idx = 0; idx < m.hdrcount; ++idx) {
		ast_free((void *) m.headers[idx]);
	}
	return res;
}

/*! \brief The body of the individual manager session.
 * Call get_input() to read one line at a time
 * (or be woken up on new events), collect the lines in a
 * message until found an empty line, and execute the request.
 * In any case, deliver events asynchronously through process_events()
 * (called from here if no line is available, or at the end of
 * process_message(). )
 */
static void *session_do(void *data)
{
	struct ast_tcptls_session_instance *ser = data;
	struct mansession_session *session;
	struct mansession s = {
		.tcptls_session = data,
	};
	int flags;
	int res;
	struct sockaddr_in ser_remote_address_tmp;
	struct protoent *p;

	if (ast_atomic_fetchadd_int(&unauth_sessions, +1) >= authlimit) {
		fclose(ser->f);
		ast_atomic_fetchadd_int(&unauth_sessions, -1);
		goto done;
	}

	ast_sockaddr_to_sin(&ser->remote_address, &ser_remote_address_tmp);
	session = build_mansession(ser_remote_address_tmp);

	if (session == NULL) {
		fclose(ser->f);
		ast_atomic_fetchadd_int(&unauth_sessions, -1);
		goto done;
	}

	/* here we set TCP_NODELAY on the socket to disable Nagle's algorithm.
	 * This is necessary to prevent delays (caused by buffering) as we
	 * write to the socket in bits and peices. */
	p = getprotobyname("tcp");
	if (p) {
		int arg = 1;
		if( setsockopt(ser->fd, p->p_proto, TCP_NODELAY, (char *)&arg, sizeof(arg) ) < 0 ) {
			ast_log(LOG_WARNING, "Failed to set manager tcp connection to TCP_NODELAY mode: %s\nSome manager actions may be slow to respond.\n", strerror(errno));
		}
	} else {
		ast_log(LOG_WARNING, "Failed to set manager tcp connection to TCP_NODELAY, getprotobyname(\"tcp\") failed\nSome manager actions may be slow to respond.\n");
	}

	flags = fcntl(ser->fd, F_GETFL);
	if (!block_sockets) { /* make sure socket is non-blocking */
		flags |= O_NONBLOCK;
	} else {
		flags &= ~O_NONBLOCK;
	}
	fcntl(ser->fd, F_SETFL, flags);

	ao2_lock(session);
	/* Hook to the tail of the event queue */
	session->last_ev = grab_last();

	ast_mutex_init(&s.lock);

	/* these fields duplicate those in the 'ser' structure */
	session->fd = s.fd = ser->fd;
	session->f = s.f = ser->f;
	session->sin = ser_remote_address_tmp;
	s.session = session;

	AST_LIST_HEAD_INIT_NOLOCK(&session->datastores);

	if(time(&session->authstart) == -1) {
		ast_log(LOG_ERROR, "error executing time(): %s; disconnecting client\n", strerror(errno));
		ast_atomic_fetchadd_int(&unauth_sessions, -1);
		ao2_unlock(session);
		session_destroy(session);
		goto done;
	}
	ao2_unlock(session);

	astman_append(&s, "Asterisk Call Manager/%s\r\n", AMI_VERSION);	/* welcome prompt */
	for (;;) {
		if ((res = do_message(&s)) < 0 || s.write_error) {
			break;
		}
	}
	/* session is over, explain why and terminate */
	if (session->authenticated) {
		if (manager_displayconnects(session)) {
			ast_verb(2, "Manager '%s' logged off from %s\n", session->username, ast_inet_ntoa(session->sin.sin_addr));
		}
	} else {
		ast_atomic_fetchadd_int(&unauth_sessions, -1);
		if (displayconnects) {
			ast_verb(2, "Connect attempt from '%s' unable to authenticate\n", ast_inet_ntoa(session->sin.sin_addr));
		}
	}

	session_destroy(session);

	ast_mutex_destroy(&s.lock);
done:
	ao2_ref(ser, -1);
	ser = NULL;
	return NULL;
}

/*! \brief remove at most n_max stale session from the list. */
static void purge_sessions(int n_max)
{
	struct mansession_session *session;
	time_t now = time(NULL);
	struct ao2_iterator i;

	if (!sessions) {
		return;
	}

	i = ao2_iterator_init(sessions, 0);
	while ((session = ao2_iterator_next(&i)) && n_max > 0) {
		ao2_lock(session);
		if (session->sessiontimeout && (now > session->sessiontimeout) && !session->inuse) {
			if (session->authenticated && (VERBOSITY_ATLEAST(2)) && manager_displayconnects(session)) {
				ast_verb(2, "HTTP Manager '%s' timed out from %s\n",
					session->username, ast_inet_ntoa(session->sin.sin_addr));
			}
			ao2_unlock(session);
			session_destroy(session);
			n_max--;
		} else {
			ao2_unlock(session);
			unref_mansession(session);
		}
	}
	ao2_iterator_destroy(&i);
}

/*
 * events are appended to a queue from where they
 * can be dispatched to clients.
 */
static int append_event(const char *str, int category)
{
	struct eventqent *tmp = ast_malloc(sizeof(*tmp) + strlen(str));
	static int seq;	/* sequence number */

	if (!tmp) {
		return -1;
	}

	/* need to init all fields, because ast_malloc() does not */
	tmp->usecount = 0;
	tmp->category = category;
	tmp->seq = ast_atomic_fetchadd_int(&seq, 1);
	tmp->tv = ast_tvnow();
	AST_RWLIST_NEXT(tmp, eq_next) = NULL;
	strcpy(tmp->eventdata, str);

	AST_RWLIST_WRLOCK(&all_events);
	AST_RWLIST_INSERT_TAIL(&all_events, tmp, eq_next);
	AST_RWLIST_UNLOCK(&all_events);

	return 0;
}

AST_THREADSTORAGE(manager_event_funcbuf);

static void append_channel_vars(struct ast_str **pbuf, struct ast_channel *chan)
{
	struct manager_channel_variable *var;

	AST_RWLIST_RDLOCK(&channelvars);
	AST_LIST_TRAVERSE(&channelvars, var, entry) {
		const char *val;
		struct ast_str *res;

		if (var->isfunc) {
			res = ast_str_thread_get(&manager_event_funcbuf, 16);
			if (res && ast_func_read2(chan, var->name, &res, 0) == 0) {
				val = ast_str_buffer(res);
			} else {
				val = NULL;
			}
		} else {
			val = pbx_builtin_getvar_helper(chan, var->name);
		}
		ast_str_append(pbuf, 0, "ChanVariable(%s): %s=%s\r\n", chan->name, var->name, val ? val : "");
	}
	AST_RWLIST_UNLOCK(&channelvars);
}

/* XXX see if can be moved inside the function */
AST_THREADSTORAGE(manager_event_buf);
#define MANAGER_EVENT_BUF_INITSIZE   256

int __ast_manager_event_multichan(int category, const char *event, int chancount, struct
	ast_channel **chans, const char *file, int line, const char *func, const char *fmt, ...)
{
	struct mansession_session *session;
	struct manager_custom_hook *hook;
	struct ast_str *auth = ast_str_alloca(80);
	const char *cat_str;
	va_list ap;
	struct timeval now;
	struct ast_str *buf;
	int i;

	if (!(sessions && ao2_container_count(sessions)) && AST_RWLIST_EMPTY(&manager_hooks)) {
		return 0;
	}
	
	if (!(buf = ast_str_thread_get(&manager_event_buf, MANAGER_EVENT_BUF_INITSIZE))) {
		return -1;
	}

	cat_str = authority_to_str(category, &auth);
	ast_str_set(&buf, 0,
			"Event: %s\r\nPrivilege: %s\r\n",
			 event, cat_str);

	if (timestampevents) {
		now = ast_tvnow();
		ast_str_append(&buf, 0,
				"Timestamp: %ld.%06lu\r\n",
				 (long)now.tv_sec, (unsigned long) now.tv_usec);
	}
	if (manager_debug) {
		static int seq;
		ast_str_append(&buf, 0,
				"SequenceNumber: %d\r\n",
				 ast_atomic_fetchadd_int(&seq, 1));
		ast_str_append(&buf, 0,
				"File: %s\r\nLine: %d\r\nFunc: %s\r\n", file, line, func);
	}

	va_start(ap, fmt);
	ast_str_append_va(&buf, 0, fmt, ap);
	va_end(ap);
	for (i = 0; i < chancount; i++) {
		append_channel_vars(&buf, chans[i]);
	}

	ast_str_append(&buf, 0, "\r\n");

	append_event(ast_str_buffer(buf), category);

	/* Wake up any sleeping sessions */
	if (sessions) {
		struct ao2_iterator i;
		i = ao2_iterator_init(sessions, 0);
		while ((session = ao2_iterator_next(&i))) {
			ao2_lock(session);
			if (session->waiting_thread != AST_PTHREADT_NULL) {
				pthread_kill(session->waiting_thread, SIGURG);
			} else {
				/* We have an event to process, but the mansession is
				 * not waiting for it. We still need to indicate that there
				 * is an event waiting so that get_input processes the pending
				 * event instead of polling.
				 */
				session->pending_event = 1;
			}
			ao2_unlock(session);
			unref_mansession(session);
		}
		ao2_iterator_destroy(&i);
	}

	if (!AST_RWLIST_EMPTY(&manager_hooks)) {
		AST_RWLIST_RDLOCK(&manager_hooks);
		AST_RWLIST_TRAVERSE(&manager_hooks, hook, list) {
			hook->helper(category, event, ast_str_buffer(buf));
		}
		AST_RWLIST_UNLOCK(&manager_hooks);
	}

	return 0;
}

/*
 * support functions to register/unregister AMI action handlers,
 */
int ast_manager_unregister(char *action)
{
	struct manager_action *cur;

	AST_RWLIST_WRLOCK(&actions);
	AST_RWLIST_TRAVERSE_SAFE_BEGIN(&actions, cur, list) {
		if (!strcasecmp(action, cur->action)) {
			AST_RWLIST_REMOVE_CURRENT(list);
			break;
		}
	}
	AST_RWLIST_TRAVERSE_SAFE_END;
	AST_RWLIST_UNLOCK(&actions);

	if (cur) {
		time_t now;

		/*
		 * We have removed the action object from the container so we
		 * are no longer in a hurry.
		 */
		ao2_lock(cur);
		cur->registered = 0;
		ao2_unlock(cur);

		/*
		 * Wait up to 5 seconds for any active invocations to complete
		 * before returning.  We have to wait instead of blocking
		 * because we may be waiting for ourself to complete.
		 */
		now = time(NULL);
		while (cur->active_count) {
			if (5 <= time(NULL) - now) {
				ast_debug(1,
					"Unregister manager action %s timed out waiting for %d active instances to complete\n",
					action, cur->active_count);
				break;
			}

			sched_yield();
		}

		ao2_t_ref(cur, -1, "action object removed from list");
		ast_verb(2, "Manager unregistered action %s\n", action);
	}

	return 0;
}

static int manager_state_cb(char *context, char *exten, int state, void *data)
{
	/* Notify managers of change */
	char hint[512];
	ast_get_hint(hint, sizeof(hint), NULL, 0, NULL, context, exten);

	manager_event(EVENT_FLAG_CALL, "ExtensionStatus", "Exten: %s\r\nContext: %s\r\nHint: %s\r\nStatus: %d\r\n", exten, context, hint, state);
	return 0;
}

static int ast_manager_register_struct(struct manager_action *act)
{
	struct manager_action *cur, *prev = NULL;

	AST_RWLIST_WRLOCK(&actions);
	AST_RWLIST_TRAVERSE(&actions, cur, list) {
		int ret;

		ret = strcasecmp(cur->action, act->action);
		if (ret == 0) {
			ast_log(LOG_WARNING, "Manager: Action '%s' already registered\n", act->action);
			AST_RWLIST_UNLOCK(&actions);
			return -1;
		}
		if (ret > 0) { /* Insert these alphabetically */
			prev = cur;
			break;
		}
	}

	ao2_t_ref(act, +1, "action object added to list");
	act->registered = 1;
	if (prev) {
		AST_RWLIST_INSERT_AFTER(&actions, prev, act, list);
	} else {
		AST_RWLIST_INSERT_HEAD(&actions, act, list);
	}

	ast_verb(2, "Manager registered action %s\n", act->action);

	AST_RWLIST_UNLOCK(&actions);

	return 0;
}

/*!
 * \internal
 * \brief Destroy the registered AMI action object.
 *
 * \param obj Object to destroy.
 *
 * \return Nothing
 */
static void action_destroy(void *obj)
{
	struct manager_action *doomed = obj;

	if (doomed->synopsis) {
		/* The string fields were initialized. */
		ast_string_field_free_memory(doomed);
	}
}

/*! \brief register a new command with manager, including online help. This is
	the preferred way to register a manager command */
int ast_manager_register2(const char *action, int auth, int (*func)(struct mansession *s, const struct message *m), const char *synopsis, const char *description)
{
	struct manager_action *cur;

	cur = ao2_alloc(sizeof(*cur), action_destroy);
	if (!cur) {
		return -1;
	}
	if (ast_string_field_init(cur, 128)) {
		ao2_t_ref(cur, -1, "action object creation failed");
		return -1;
	}

	cur->action = action;
	cur->authority = auth;
	cur->func = func;
#ifdef AST_XML_DOCS
	if (ast_strlen_zero(synopsis) && ast_strlen_zero(description)) {
		char *tmpxml;

		tmpxml = ast_xmldoc_build_synopsis("manager", action, NULL);
		ast_string_field_set(cur, synopsis, tmpxml);
		ast_free(tmpxml);

		tmpxml = ast_xmldoc_build_syntax("manager", action, NULL);
		ast_string_field_set(cur, syntax, tmpxml);
		ast_free(tmpxml);

		tmpxml = ast_xmldoc_build_description("manager", action, NULL);
		ast_string_field_set(cur, description, tmpxml);
		ast_free(tmpxml);

		tmpxml = ast_xmldoc_build_seealso("manager", action, NULL);
		ast_string_field_set(cur, seealso, tmpxml);
		ast_free(tmpxml);

		tmpxml = ast_xmldoc_build_arguments("manager", action, NULL);
		ast_string_field_set(cur, arguments, tmpxml);
		ast_free(tmpxml);

		cur->docsrc = AST_XML_DOC;
	} else
#endif
	{
		ast_string_field_set(cur, synopsis, synopsis);
		ast_string_field_set(cur, description, description);
#ifdef AST_XML_DOCS
		cur->docsrc = AST_STATIC_DOC;
#endif
	}
	if (ast_manager_register_struct(cur)) {
		ao2_t_ref(cur, -1, "action object registration failed");
		return -1;
	}

	ao2_t_ref(cur, -1, "action object registration successful");
	return 0;
}
/*! @}
 END Doxygen group */

/*
 * The following are support functions for AMI-over-http.
 * The common entry point is generic_http_callback(),
 * which extracts HTTP header and URI fields and reformats
 * them into AMI messages, locates a proper session
 * (using the mansession_id Cookie or GET variable),
 * and calls process_message() as for regular AMI clients.
 * When done, the output (which goes to a temporary file)
 * is read back into a buffer and reformatted as desired,
 * then fed back to the client over the original socket.
 */

enum output_format {
	FORMAT_RAW,
	FORMAT_HTML,
	FORMAT_XML,
};

static const char * const contenttype[] = {
	[FORMAT_RAW] = "plain",
	[FORMAT_HTML] = "html",
	[FORMAT_XML] =  "xml",
};

/*!
 * locate an http session in the list. The search key (ident) is
 * the value of the mansession_id cookie (0 is not valid and means
 * a session on the AMI socket).
 */
static struct mansession_session *find_session(uint32_t ident, int incinuse)
{
	struct mansession_session *session;
	struct ao2_iterator i;

	if (ident == 0) {
		return NULL;
	}

	i = ao2_iterator_init(sessions, 0);
	while ((session = ao2_iterator_next(&i))) {
		ao2_lock(session);
		if (session->managerid == ident && !session->needdestroy) {
			ast_atomic_fetchadd_int(&session->inuse, incinuse ? 1 : 0);
			break;
		}
		ao2_unlock(session);
		unref_mansession(session);
	}
	ao2_iterator_destroy(&i);

	return session;
}

/*!
 * locate an http session in the list.
 * The search keys (nonce) and (username) is value from received
 * "Authorization" http header.
 * As well as in find_session() function, the value of the nonce can't be zero.
 * (0 meansi, that the session used for AMI socket connection).
 * Flag (stale) is set, if client used valid, but old, nonce value.
 *
 */
static struct mansession_session *find_session_by_nonce(const char *username, unsigned long nonce, int *stale)
{
	struct mansession_session *session;
	struct ao2_iterator i;

	if (nonce == 0 || username == NULL || stale == NULL) {
		return NULL;
	}

	i = ao2_iterator_init(sessions, 0);
	while ((session = ao2_iterator_next(&i))) {
		ao2_lock(session);
		if (!strcasecmp(session->username, username) && session->managerid == nonce) {
			*stale = 0;
			break;
		} else if (!strcasecmp(session->username, username) && session->oldnonce == nonce) {
			*stale = 1;
			break;
		}
		ao2_unlock(session);
		unref_mansession(session);
	}
	ao2_iterator_destroy(&i);
	return session;
}

int astman_is_authed(uint32_t ident)
{
	int authed;
	struct mansession_session *session;

	if (!(session = find_session(ident, 0)))
		return 0;

	authed = (session->authenticated != 0);

	ao2_unlock(session);
	unref_mansession(session);

	return authed;
}

int astman_verify_session_readpermissions(uint32_t ident, int perm)
{
	int result = 0;
	struct mansession_session *session;
	struct ao2_iterator i;

	if (ident == 0) {
		return 0;
	}

	i = ao2_iterator_init(sessions, 0);
	while ((session = ao2_iterator_next(&i))) {
		ao2_lock(session);
		if ((session->managerid == ident) && (session->readperm & perm)) {
			result = 1;
			ao2_unlock(session);
			unref_mansession(session);
			break;
		}
		ao2_unlock(session);
		unref_mansession(session);
	}
	ao2_iterator_destroy(&i);
	return result;
}

int astman_verify_session_writepermissions(uint32_t ident, int perm)
{
	int result = 0;
	struct mansession_session *session;
	struct ao2_iterator i;

	if (ident == 0) {
		return 0;
	}

	i = ao2_iterator_init(sessions, 0);
	while ((session = ao2_iterator_next(&i))) {
		ao2_lock(session);
		if ((session->managerid == ident) && (session->writeperm & perm)) {
			result = 1;
			ao2_unlock(session);
			unref_mansession(session);
			break;
		}
		ao2_unlock(session);
		unref_mansession(session);
	}
	ao2_iterator_destroy(&i);
	return result;
}

/*
 * convert to xml with various conversion:
 * mode & 1	-> lowercase;
 * mode & 2	-> replace non-alphanumeric chars with underscore
 */
static void xml_copy_escape(struct ast_str **out, const char *src, int mode)
{
	/* store in a local buffer to avoid calling ast_str_append too often */
	char buf[256];
	char *dst = buf;
	int space = sizeof(buf);
	/* repeat until done and nothing to flush */
	for ( ; *src || dst != buf ; src++) {
		if (*src == '\0' || space < 10) {	/* flush */
			*dst++ = '\0';
			ast_str_append(out, 0, "%s", buf);
			dst = buf;
			space = sizeof(buf);
			if (*src == '\0') {
				break;
			}
		}

		if ( (mode & 2) && !isalnum(*src)) {
			*dst++ = '_';
			space--;
			continue;
		}
		switch (*src) {
		case '<':
			strcpy(dst, "&lt;");
			dst += 4;
			space -= 4;
			break;
		case '>':
			strcpy(dst, "&gt;");
			dst += 4;
			space -= 4;
			break;
		case '\"':
			strcpy(dst, "&quot;");
			dst += 6;
			space -= 6;
			break;
		case '\'':
			strcpy(dst, "&apos;");
			dst += 6;
			space -= 6;
			break;
		case '&':
			strcpy(dst, "&amp;");
			dst += 5;
			space -= 5;
			break;

		default:
			*dst++ = mode ? tolower(*src) : *src;
			space--;
		}
	}
}

struct variable_count {
	char *varname;
	int count;
};

static int variable_count_hash_fn(const void *vvc, const int flags)
{
	const struct variable_count *vc = vvc;

	return ast_str_hash(vc->varname);
}

static int variable_count_cmp_fn(void *obj, void *vstr, int flags)
{
	/* Due to the simplicity of struct variable_count, it makes no difference
	 * if you pass in objects or strings, the same operation applies. This is
	 * due to the fact that the hash occurs on the first element, which means
	 * the address of both the struct and the string are exactly the same. */
	struct variable_count *vc = obj;
	char *str = vstr;
	return !strcmp(vc->varname, str) ? CMP_MATCH | CMP_STOP : 0;
}

/*! \brief Convert the input into XML or HTML.
 * The input is supposed to be a sequence of lines of the form
 *	Name: value
 * optionally followed by a blob of unformatted text.
 * A blank line is a section separator. Basically, this is a
 * mixture of the format of Manager Interface and CLI commands.
 * The unformatted text is considered as a single value of a field
 * named 'Opaque-data'.
 *
 * At the moment the output format is the following (but it may
 * change depending on future requirements so don't count too
 * much on it when writing applications):
 *
 * General: the unformatted text is used as a value of
 * XML output:  to be completed
 *
 * \verbatim
 *   Each section is within <response type="object" id="xxx">
 *   where xxx is taken from ajaxdest variable or defaults to unknown
 *   Each row is reported as an attribute Name="value" of an XML
 *   entity named from the variable ajaxobjtype, default to "generic"
 * \endverbatim
 *
 * HTML output:
 *   each Name-value pair is output as a single row of a two-column table.
 *   Sections (blank lines in the input) are separated by a <HR>
 *
 */
static void xml_translate(struct ast_str **out, char *in, struct ast_variable *get_vars, enum output_format format)
{
	struct ast_variable *v;
	const char *dest = NULL;
	char *var, *val;
	const char *objtype = NULL;
	int in_data = 0;	/* parsing data */
	int inobj = 0;
	int xml = (format == FORMAT_XML);
	struct variable_count *vc = NULL;
	struct ao2_container *vco = NULL;

	if (xml) {
		/* dest and objtype need only for XML format */
		for (v = get_vars; v; v = v->next) {
			if (!strcasecmp(v->name, "ajaxdest")) {
				dest = v->value;
			} else if (!strcasecmp(v->name, "ajaxobjtype")) {
				objtype = v->value;
			}
		}
		if (ast_strlen_zero(dest)) {
			dest = "unknown";
		}
		if (ast_strlen_zero(objtype)) {
			objtype = "generic";
		}
	}

	/* we want to stop when we find an empty line */
	while (in && *in) {
		val = strsep(&in, "\r\n");	/* mark start and end of line */
		if (in && *in == '\n') {	/* remove trailing \n if any */
			in++;
		}
		ast_trim_blanks(val);
		ast_debug(5, "inobj %d in_data %d line <%s>\n", inobj, in_data, val);
		if (ast_strlen_zero(val)) {
			/* empty line */
			if (in_data) {
				/* close data in Opaque mode */
				ast_str_append(out, 0, xml ? "'" : "</td></tr>\n");
				in_data = 0;
			}

			if (inobj) {
				/* close block */
				ast_str_append(out, 0, xml ? " /></response>\n" :
					"<tr><td colspan=\"2\"><hr></td></tr>\r\n");
				inobj = 0;
				ao2_ref(vco, -1);
				vco = NULL;
			}
			continue;
		}

		if (!inobj) {
			/* start new block */
			if (xml) {
				ast_str_append(out, 0, "<response type='object' id='%s'><%s", dest, objtype);
			}
			vco = ao2_container_alloc(37, variable_count_hash_fn, variable_count_cmp_fn);
			inobj = 1;
		}

		if (in_data) {
			/* Process data field in Opaque mode. This is a
			 * followup, so we re-add line feeds. */
			ast_str_append(out, 0, xml ? "\n" : "<br>\n");
			xml_copy_escape(out, val, 0);   /* data field */
			continue;
		}

		/* We expect "Name: value" line here */
		var = strsep(&val, ":");
		if (val) {
			/* found the field name */
			val = ast_skip_blanks(val);
			ast_trim_blanks(var);
		} else {
			/* field name not found, switch to opaque mode */
			val = var;
			var = "Opaque-data";
			in_data = 1;
		}


		ast_str_append(out, 0, xml ? " " : "<tr><td>");
		if ((vc = ao2_find(vco, var, 0))) {
			vc->count++;
		} else {
			/* Create a new entry for this one */
			vc = ao2_alloc(sizeof(*vc), NULL);
			vc->varname = var;
			vc->count = 1;
			ao2_link(vco, vc);
		}

		xml_copy_escape(out, var, xml ? 1 | 2 : 0); /* data name */
		if (vc->count > 1) {
			ast_str_append(out, 0, "-%d", vc->count);
		}
		ao2_ref(vc, -1);
		ast_str_append(out, 0, xml ? "='" : "</td><td>");
		xml_copy_escape(out, val, 0);	/* data field */
		if (!in_data || !*in) {
			ast_str_append(out, 0, xml ? "'" : "</td></tr>\n");
		}
	}

	if (inobj) {
		ast_str_append(out, 0, xml ? " /></response>\n" :
			"<tr><td colspan=\"2\"><hr></td></tr>\r\n");
		ao2_ref(vco, -1);
	}
}

static void process_output(struct mansession *s, struct ast_str **out, struct ast_variable *params, enum output_format format)
{
	char *buf;
	size_t l;

	if (!s->f)
		return;

	/* Ensure buffer is NULL-terminated */
	fprintf(s->f, "%c", 0);
	fflush(s->f);

	if ((l = ftell(s->f)) > 0) {
		if (MAP_FAILED == (buf = mmap(NULL, l, PROT_READ | PROT_WRITE, MAP_PRIVATE, s->fd, 0))) {
			ast_log(LOG_WARNING, "mmap failed.  Manager output was not processed\n");
		} else {
			if (format == FORMAT_XML || format == FORMAT_HTML) {
				xml_translate(out, buf, params, format);
			} else {
				ast_str_append(out, 0, "%s", buf);
			}
			munmap(buf, l);
		}
	} else if (format == FORMAT_XML || format == FORMAT_HTML) {
		xml_translate(out, "", params, format);
	}

	if (s->f) {
		if (fclose(s->f)) {
			ast_log(LOG_ERROR, "fclose() failed: %s\n", strerror(errno));
		}
		s->f = NULL;
		s->fd = -1;
	} else if (s->fd != -1) {
		if (close(s->fd)) {
			ast_log(LOG_ERROR, "close() failed: %s\n", strerror(errno));
		}
		s->fd = -1;
	} else {
		ast_log(LOG_ERROR, "process output attempted to close file/file descriptor on mansession without a valid file or file descriptor.\n");
	}
}

static int generic_http_callback(struct ast_tcptls_session_instance *ser,
					     enum ast_http_method method,
					     enum output_format format,
					     struct sockaddr_in *remote_address, const char *uri,
					     struct ast_variable *get_params,
					     struct ast_variable *headers)
{
	struct mansession s = { .session = NULL, .tcptls_session = ser };
	struct mansession_session *session = NULL;
	uint32_t ident = 0;
	int blastaway = 0;
	struct ast_variable *v, *cookies, *params = get_params;
	char template[] = "/tmp/ast-http-XXXXXX";	/* template for temporary file */
	struct ast_str *http_header = NULL, *out = NULL;
	struct message m = { 0 };
	unsigned int idx;
	size_t hdrlen;

	if (method != AST_HTTP_GET && method != AST_HTTP_HEAD && method != AST_HTTP_POST) {
		ast_http_error(ser, 501, "Not Implemented", "Attempt to use unimplemented / unsupported method");
		return -1;
	}

	cookies = ast_http_get_cookies(headers);
	for (v = cookies; v; v = v->next) {
		if (!strcasecmp(v->name, "mansession_id")) {
			sscanf(v->value, "%30x", &ident);
			break;
		}
	}
	if (cookies) {
		ast_variables_destroy(cookies);
	}

	if (!(session = find_session(ident, 1))) {

		/**/
		/* Create new session.
		 * While it is not in the list we don't need any locking
		 */
		if (!(session = build_mansession(*remote_address))) {
			ast_http_error(ser, 500, "Server Error", "Internal Server Error (out of memory)\n");
			return -1;
		}
		ao2_lock(session);
		session->sin = *remote_address;
		session->fd = -1;
		session->waiting_thread = AST_PTHREADT_NULL;
		session->send_events = 0;
		session->inuse = 1;
		/*!\note There is approximately a 1 in 1.8E19 chance that the following
		 * calculation will produce 0, which is an invalid ID, but due to the
		 * properties of the rand() function (and the constantcy of s), that
		 * won't happen twice in a row.
		 */
		while ((session->managerid = ast_random() ^ (unsigned long) session) == 0);
		session->last_ev = grab_last();
		AST_LIST_HEAD_INIT_NOLOCK(&session->datastores);
	}
	ao2_unlock(session);

	http_header = ast_str_create(128);
	out = ast_str_create(2048);

	ast_mutex_init(&s.lock);

	if (http_header == NULL || out == NULL) {
		ast_http_error(ser, 500, "Server Error", "Internal Server Error (ast_str_create() out of memory)\n");
		goto generic_callback_out;
	}

	s.session = session;
	s.fd = mkstemp(template);	/* create a temporary file for command output */
	unlink(template);
	if (s.fd <= -1) {
		ast_http_error(ser, 500, "Server Error", "Internal Server Error (mkstemp failed)\n");
		goto generic_callback_out;
	}
	s.f = fdopen(s.fd, "w+");
	if (!s.f) {
		ast_log(LOG_WARNING, "HTTP Manager, fdopen failed: %s!\n", strerror(errno));
		ast_http_error(ser, 500, "Server Error", "Internal Server Error (fdopen failed)\n");
		close(s.fd);
		goto generic_callback_out;
	}

	if (method == AST_HTTP_POST) {
		params = ast_http_get_post_vars(ser, headers);
	}

	for (v = params; v && m.hdrcount < ARRAY_LEN(m.headers); v = v->next) {
		hdrlen = strlen(v->name) + strlen(v->value) + 3;
		m.headers[m.hdrcount] = ast_malloc(hdrlen);
		if (!m.headers[m.hdrcount]) {
			/* Allocation failure */
			continue;
		}
		snprintf((char *) m.headers[m.hdrcount], hdrlen, "%s: %s", v->name, v->value);
		ast_debug(1, "HTTP Manager add header %s\n", m.headers[m.hdrcount]);
		++m.hdrcount;
	}

	if (process_message(&s, &m)) {
		if (session->authenticated) {
			if (manager_displayconnects(session)) {
				ast_verb(2, "HTTP Manager '%s' logged off from %s\n", session->username, ast_inet_ntoa(session->sin.sin_addr));
			}
		} else {
			if (displayconnects) {
				ast_verb(2, "HTTP Connect attempt from '%s' unable to authenticate\n", ast_inet_ntoa(session->sin.sin_addr));
			}
		}
		session->needdestroy = 1;
	}

	/* Free request headers. */
	for (idx = 0; idx < m.hdrcount; ++idx) {
		ast_free((void *) m.headers[idx]);
		m.headers[idx] = NULL;
	}

	ast_str_append(&http_header, 0,
		"Content-type: text/%s\r\n"
		"Cache-Control: no-cache;\r\n"
		"Set-Cookie: mansession_id=\"%08x\"; Version=1; Max-Age=%d\r\n"
		"Pragma: SuppressEvents\r\n",
		contenttype[format],
		session->managerid, httptimeout);

	if (format == FORMAT_XML) {
		ast_str_append(&out, 0, "<ajax-response>\n");
	} else if (format == FORMAT_HTML) {
		/*
		 * When handling AMI-over-HTTP in HTML format, we provide a simple form for
		 * debugging purposes. This HTML code should not be here, we
		 * should read from some config file...
		 */

#define ROW_FMT	"<tr><td colspan=\"2\" bgcolor=\"#f1f1ff\">%s</td></tr>\r\n"
#define TEST_STRING \
	"<form action=\"manager\" method=\"post\">\n\
	Action: <select name=\"action\">\n\
		<option value=\"\">-----&gt;</option>\n\
		<option value=\"login\">login</option>\n\
		<option value=\"command\">Command</option>\n\
		<option value=\"waitevent\">waitevent</option>\n\
		<option value=\"listcommands\">listcommands</option>\n\
	</select>\n\
	or <input name=\"action\"><br/>\n\
	CLI Command <input name=\"command\"><br>\n\
	user <input name=\"username\"> pass <input type=\"password\" name=\"secret\"><br>\n\
	<input type=\"submit\">\n</form>\n"

		ast_str_append(&out, 0, "<title>Asterisk&trade; Manager Interface</title>");
		ast_str_append(&out, 0, "<body bgcolor=\"#ffffff\"><table align=center bgcolor=\"#f1f1f1\" width=\"500\">\r\n");
		ast_str_append(&out, 0, ROW_FMT, "<h1>Manager Tester</h1>");
		ast_str_append(&out, 0, ROW_FMT, TEST_STRING);
	}

	process_output(&s, &out, params, format);

	if (format == FORMAT_XML) {
		ast_str_append(&out, 0, "</ajax-response>\n");
	} else if (format == FORMAT_HTML) {
		ast_str_append(&out, 0, "</table></body>\r\n");
	}

	ao2_lock(session);
	/* Reset HTTP timeout.  If we're not authenticated, keep it extremely short */
	session->sessiontimeout = time(NULL) + ((session->authenticated || httptimeout < 5) ? httptimeout : 5);

	if (session->needdestroy) {
		if (session->inuse == 1) {
			ast_debug(1, "Need destroy, doing it now!\n");
			blastaway = 1;
		} else {
			ast_debug(1, "Need destroy, but can't do it yet!\n");
			if (session->waiting_thread != AST_PTHREADT_NULL) {
				pthread_kill(session->waiting_thread, SIGURG);
			}
			session->inuse--;
		}
	} else {
		session->inuse--;
	}
	ao2_unlock(session);

	ast_http_send(ser, method, 200, NULL, http_header, out, 0, 0);
	http_header = out = NULL;

generic_callback_out:
	ast_mutex_destroy(&s.lock);

	/* Clear resource */

	if (method == AST_HTTP_POST && params) {
		ast_variables_destroy(params);
	}
	if (http_header) {
		ast_free(http_header);
	}
	if (out) {
		ast_free(out);
	}

	if (session && blastaway) {
		session_destroy(session);
	} else if (session && session->f) {
		fclose(session->f);
		session->f = NULL;
	}

	return 0;
}

static int auth_http_callback(struct ast_tcptls_session_instance *ser,
					     enum ast_http_method method,
					     enum output_format format,
					     struct sockaddr_in *remote_address, const char *uri,
					     struct ast_variable *get_params,
					     struct ast_variable *headers)
{
	struct mansession_session *session = NULL;
	struct mansession s = { .session = NULL, .tcptls_session = ser };
	struct ast_variable *v, *params = get_params;
	char template[] = "/tmp/ast-http-XXXXXX";	/* template for temporary file */
	struct ast_str *http_header = NULL, *out = NULL;
	size_t result_size = 512;
	struct message m = { 0 };
	unsigned int idx;
	size_t hdrlen;

	time_t time_now = time(NULL);
	unsigned long nonce = 0, nc;
	struct ast_http_digest d = { NULL, };
	struct ast_manager_user *user = NULL;
	int stale = 0;
	char resp_hash[256]="";
	/* Cache for user data */
	char u_username[80];
	int u_readperm;
	int u_writeperm;
	int u_writetimeout;
	int u_displayconnects;
	struct ast_sockaddr addr;

	if (method != AST_HTTP_GET && method != AST_HTTP_HEAD && method != AST_HTTP_POST) {
		ast_http_error(ser, 501, "Not Implemented", "Attempt to use unimplemented / unsupported method");
		return -1;
	}

	/* Find "Authorization: " header */
	for (v = headers; v; v = v->next) {
		if (!strcasecmp(v->name, "Authorization")) {
			break;
		}
	}

	if (!v || ast_strlen_zero(v->value)) {
		goto out_401; /* Authorization Header not present - send auth request */
	}

	/* Digest found - parse */
	if (ast_string_field_init(&d, 128)) {
		ast_http_error(ser, 500, "Server Error", "Internal Server Error (out of memory)\n");
		return -1;
	}

	if (ast_parse_digest(v->value, &d, 0, 1)) {
		/* Error in Digest - send new one */
		nonce = 0;
		goto out_401;
	}
	if (sscanf(d.nonce, "%30lx", &nonce) != 1) {
		ast_log(LOG_WARNING, "Received incorrect nonce in Digest <%s>\n", d.nonce);
		nonce = 0;
		goto out_401;
	}

	AST_RWLIST_WRLOCK(&users);
	user = get_manager_by_name_locked(d.username);
	if(!user) {
		AST_RWLIST_UNLOCK(&users);
		ast_log(LOG_NOTICE, "%s tried to authenticate with nonexistent user '%s'\n", ast_inet_ntoa(remote_address->sin_addr), d.username);
		nonce = 0;
		goto out_401;
	}

	ast_sockaddr_from_sin(&addr, remote_address);
	/* --- We have User for this auth, now check ACL */
	if (user->ha && !ast_apply_ha(user->ha, &addr)) {
		AST_RWLIST_UNLOCK(&users);
		ast_log(LOG_NOTICE, "%s failed to pass IP ACL as '%s'\n", ast_inet_ntoa(remote_address->sin_addr), d.username);
		ast_http_error(ser, 403, "Permission denied", "Permission denied\n");
		return -1;
	}

	/* --- We have auth, so check it */

	/* compute the expected response to compare with what we received */
	{
		char a2[256];
		char a2_hash[256];
		char resp[256];

		/* XXX Now request method are hardcoded in A2 */
		snprintf(a2, sizeof(a2), "%s:%s", ast_get_http_method(method), d.uri);
		ast_md5_hash(a2_hash, a2);

		if (d.qop) {
			/* RFC 2617 */
			snprintf(resp, sizeof(resp), "%s:%08lx:%s:%s:auth:%s", user->a1_hash, nonce, d.nc, d.cnonce, a2_hash);
		}  else {
			/* RFC 2069 */
			snprintf(resp, sizeof(resp), "%s:%08lx:%s", user->a1_hash, nonce, a2_hash);
		}
		ast_md5_hash(resp_hash, resp);
	}

	if (strncasecmp(d.response, resp_hash, strlen(resp_hash))) {
		/* Something was wrong, so give the client to try with a new challenge */
		AST_RWLIST_UNLOCK(&users);
		nonce = 0;
		goto out_401;
	}

	/*
	 * User are pass Digest authentication.
	 * Now, cache the user data and unlock user list.
	 */
	ast_copy_string(u_username, user->username, sizeof(u_username));
	u_readperm = user->readperm;
	u_writeperm = user->writeperm;
	u_displayconnects = user->displayconnects;
	u_writetimeout = user->writetimeout;
	AST_RWLIST_UNLOCK(&users);

	if (!(session = find_session_by_nonce(d.username, nonce, &stale))) {
		/*
		 * Create new session.
		 * While it is not in the list we don't need any locking
		 */
		if (!(session = build_mansession(*remote_address))) {
			ast_http_error(ser, 500, "Server Error", "Internal Server Error (out of memory)\n");
			return -1;
		}
		ao2_lock(session);

		ast_copy_string(session->username, u_username, sizeof(session->username));
		session->managerid = nonce;
		session->last_ev = grab_last();
		AST_LIST_HEAD_INIT_NOLOCK(&session->datastores);

		session->readperm = u_readperm;
		session->writeperm = u_writeperm;
		session->writetimeout = u_writetimeout;

		if (u_displayconnects) {
			ast_verb(2, "HTTP Manager '%s' logged in from %s\n", session->username, ast_inet_ntoa(session->sin.sin_addr));
		}
		session->noncetime = session->sessionstart = time_now;
		session->authenticated = 1;
	} else if (stale) {
		/*
		 * Session found, but nonce is stale.
		 *
		 * This could be because an old request (w/old nonce) arrived.
		 *
		 * This may be as the result of http proxy usage (separate delay or
		 * multipath) or in a situation where a page was refreshed too quickly
		 * (seen in Firefox).
		 *
		 * In this situation, we repeat the 401 auth with the current nonce
		 * value.
		 */
		nonce = session->managerid;
		ao2_unlock(session);
		stale = 1;
		goto out_401;
	} else {
		sscanf(d.nc, "%30lx", &nc);
		if (session->nc >= nc || ((time_now - session->noncetime) > 62) ) {
			/*
			 * Nonce time expired (> 2 minutes) or something wrong with nonce
			 * counter.
			 *
			 * Create new nonce key and resend Digest auth request. Old nonce
			 * is saved for stale checking...
			 */
			session->nc = 0; /* Reset nonce counter */
			session->oldnonce = session->managerid;
			nonce = session->managerid = ast_random();
			session->noncetime = time_now;
			ao2_unlock(session);
			stale = 1;
			goto out_401;
		} else {
			session->nc = nc; /* All OK, save nonce counter */
		}
	}


	/* Reset session timeout. */
	session->sessiontimeout = time(NULL) + (httptimeout > 5 ? httptimeout : 5);
	ao2_unlock(session);

	ast_mutex_init(&s.lock);
	s.session = session;
	s.fd = mkstemp(template);	/* create a temporary file for command output */
	unlink(template);
	if (s.fd <= -1) {
		ast_http_error(ser, 500, "Server Error", "Internal Server Error (mkstemp failed)\n");
		goto auth_callback_out;
	}
	s.f = fdopen(s.fd, "w+");
	if (!s.f) {
		ast_log(LOG_WARNING, "HTTP Manager, fdopen failed: %s!\n", strerror(errno));
		ast_http_error(ser, 500, "Server Error", "Internal Server Error (fdopen failed)\n");
		close(s.fd);
		goto auth_callback_out;
	}

	if (method == AST_HTTP_POST) {
		params = ast_http_get_post_vars(ser, headers);
	}

	for (v = params; v && m.hdrcount < ARRAY_LEN(m.headers); v = v->next) {
		hdrlen = strlen(v->name) + strlen(v->value) + 3;
		m.headers[m.hdrcount] = ast_malloc(hdrlen);
		if (!m.headers[m.hdrcount]) {
			/* Allocation failure */
			continue;
		}
		snprintf((char *) m.headers[m.hdrcount], hdrlen, "%s: %s", v->name, v->value);
		ast_verb(4, "HTTP Manager add header %s\n", m.headers[m.hdrcount]);
		++m.hdrcount;
	}

	if (process_message(&s, &m)) {
		if (u_displayconnects) {
			ast_verb(2, "HTTP Manager '%s' logged off from %s\n", session->username, ast_inet_ntoa(session->sin.sin_addr));
		}

		session->needdestroy = 1;
	}

	/* Free request headers. */
	for (idx = 0; idx < m.hdrcount; ++idx) {
		ast_free((void *) m.headers[idx]);
		m.headers[idx] = NULL;
	}

	if (s.f) {
		result_size = ftell(s.f); /* Calculate approx. size of result */
	}

	http_header = ast_str_create(80);
	out = ast_str_create(result_size * 2 + 512);

	if (http_header == NULL || out == NULL) {
		ast_http_error(ser, 500, "Server Error", "Internal Server Error (ast_str_create() out of memory)\n");
		goto auth_callback_out;
	}

	ast_str_append(&http_header, 0, "Content-type: text/%s\r\n", contenttype[format]);

	if (format == FORMAT_XML) {
		ast_str_append(&out, 0, "<ajax-response>\n");
	} else if (format == FORMAT_HTML) {
		ast_str_append(&out, 0,
		"<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\r\n"
		"<html><head>\r\n"
		"<title>Asterisk&trade; Manager Interface</title>\r\n"
		"</head><body style=\"background-color: #ffffff;\">\r\n"
		"<form method=\"POST\">\r\n"
		"<table align=\"center\" style=\"background-color: #f1f1f1;\" width=\"500\">\r\n"
		"<tr><th colspan=\"2\" style=\"background-color: #f1f1ff;\"><h1>Manager Tester</h1></th></tr>\r\n"
		"<tr><th colspan=\"2\" style=\"background-color: #f1f1ff;\">Action: <input name=\"action\" /> Cmd: <input name=\"command\" /><br>"
		"<input type=\"submit\" value=\"Send request\" /></th></tr>\r\n");
	}

	process_output(&s, &out, params, format);

	if (format == FORMAT_XML) {
		ast_str_append(&out, 0, "</ajax-response>\n");
	} else if (format == FORMAT_HTML) {
		ast_str_append(&out, 0, "</table></form></body></html>\r\n");
	}

	ast_http_send(ser, method, 200, NULL, http_header, out, 0, 0);
	http_header = out = NULL;

auth_callback_out:
	ast_mutex_destroy(&s.lock);

	/* Clear resources and unlock manager session */
	if (method == AST_HTTP_POST && params) {
		ast_variables_destroy(params);
	}

	ast_free(http_header);
	ast_free(out);

	ao2_lock(session);
	if (session->f) {
		fclose(session->f);
	}
	session->f = NULL;
	session->fd = -1;
	ao2_unlock(session);

	if (session->needdestroy) {
		ast_debug(1, "Need destroy, doing it now!\n");
		session_destroy(session);
	}
	ast_string_field_free_memory(&d);
	return 0;

out_401:
	if (!nonce) {
		nonce = ast_random();
	}

	ast_http_auth(ser, global_realm, nonce, nonce, stale, NULL);
	ast_string_field_free_memory(&d);
	return 0;
}

static int manager_http_callback(struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *get_params,  struct ast_variable *headers)
{
	int retval;
	struct sockaddr_in ser_remote_address_tmp;

	ast_sockaddr_to_sin(&ser->remote_address, &ser_remote_address_tmp);
	retval = generic_http_callback(ser, method, FORMAT_HTML, &ser_remote_address_tmp, uri, get_params, headers);
	ast_sockaddr_from_sin(&ser->remote_address, &ser_remote_address_tmp);
	return retval;
}

static int mxml_http_callback(struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *get_params, struct ast_variable *headers)
{
	int retval;
	struct sockaddr_in ser_remote_address_tmp;

	ast_sockaddr_to_sin(&ser->remote_address, &ser_remote_address_tmp);
	retval = generic_http_callback(ser, method, FORMAT_XML, &ser_remote_address_tmp, uri, get_params, headers);
	ast_sockaddr_from_sin(&ser->remote_address, &ser_remote_address_tmp);
	return retval;
}

static int rawman_http_callback(struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *get_params, struct ast_variable *headers)
{
	int retval;
	struct sockaddr_in ser_remote_address_tmp;

	ast_sockaddr_to_sin(&ser->remote_address, &ser_remote_address_tmp);
	retval = generic_http_callback(ser, method, FORMAT_RAW, &ser_remote_address_tmp, uri, get_params, headers);
	ast_sockaddr_from_sin(&ser->remote_address, &ser_remote_address_tmp);
	return retval;
}

static struct ast_http_uri rawmanuri = {
	.description = "Raw HTTP Manager Event Interface",
	.uri = "rawman",
	.callback = rawman_http_callback,
	.data = NULL,
	.key = __FILE__,
};

static struct ast_http_uri manageruri = {
	.description = "HTML Manager Event Interface",
	.uri = "manager",
	.callback = manager_http_callback,
	.data = NULL,
	.key = __FILE__,
};

static struct ast_http_uri managerxmluri = {
	.description = "XML Manager Event Interface",
	.uri = "mxml",
	.callback = mxml_http_callback,
	.data = NULL,
	.key = __FILE__,
};


/* Callback with Digest authentication */
static int auth_manager_http_callback(struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *get_params,  struct ast_variable *headers)
{
	int retval;
	struct sockaddr_in ser_remote_address_tmp;

	ast_sockaddr_to_sin(&ser->remote_address, &ser_remote_address_tmp);
	retval = auth_http_callback(ser, method, FORMAT_HTML, &ser_remote_address_tmp, uri, get_params, headers);
	ast_sockaddr_from_sin(&ser->remote_address, &ser_remote_address_tmp);
	return retval;
}

static int auth_mxml_http_callback(struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *get_params, struct ast_variable *headers)
{
	int retval;
	struct sockaddr_in ser_remote_address_tmp;

	ast_sockaddr_to_sin(&ser->remote_address, &ser_remote_address_tmp);
	retval = auth_http_callback(ser, method, FORMAT_XML, &ser_remote_address_tmp, uri, get_params, headers);
	ast_sockaddr_from_sin(&ser->remote_address, &ser_remote_address_tmp);
	return retval;
}

static int auth_rawman_http_callback(struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *get_params, struct ast_variable *headers)
{
	int retval;
	struct sockaddr_in ser_remote_address_tmp;

	ast_sockaddr_to_sin(&ser->remote_address, &ser_remote_address_tmp);
	retval = auth_http_callback(ser, method, FORMAT_RAW, &ser_remote_address_tmp, uri, get_params, headers);
	ast_sockaddr_from_sin(&ser->remote_address, &ser_remote_address_tmp);
	return retval;
}

static struct ast_http_uri arawmanuri = {
	.description = "Raw HTTP Manager Event Interface w/Digest authentication",
	.uri = "arawman",
	.has_subtree = 0,
	.callback = auth_rawman_http_callback,
	.data = NULL,
	.key = __FILE__,
};

static struct ast_http_uri amanageruri = {
	.description = "HTML Manager Event Interface w/Digest authentication",
	.uri = "amanager",
	.has_subtree = 0,
	.callback = auth_manager_http_callback,
	.data = NULL,
	.key = __FILE__,
};

static struct ast_http_uri amanagerxmluri = {
	.description = "XML Manager Event Interface w/Digest authentication",
	.uri = "amxml",
	.has_subtree = 0,
	.callback = auth_mxml_http_callback,
	.data = NULL,
	.key = __FILE__,
};

static int registered = 0;
static int webregged = 0;

/*! \brief cleanup code called at each iteration of server_root,
 * guaranteed to happen every 5 seconds at most
 */
static void purge_old_stuff(void *data)
{
	purge_sessions(1);
	purge_events();
}

static struct ast_tls_config ami_tls_cfg;
static struct ast_tcptls_session_args ami_desc = {
	.accept_fd = -1,
	.master = AST_PTHREADT_NULL,
	.tls_cfg = NULL,
	.poll_timeout = 5000,	/* wake up every 5 seconds */
	.periodic_fn = purge_old_stuff,
	.name = "AMI server",
	.accept_fn = ast_tcptls_server_root,	/* thread doing the accept() */
	.worker_fn = session_do,	/* thread handling the session */
};

static struct ast_tcptls_session_args amis_desc = {
	.accept_fd = -1,
	.master = AST_PTHREADT_NULL,
	.tls_cfg = &ami_tls_cfg,
	.poll_timeout = -1,	/* the other does the periodic cleanup */
	.name = "AMI TLS server",
	.accept_fn = ast_tcptls_server_root,	/* thread doing the accept() */
	.worker_fn = session_do,	/* thread handling the session */
};

/*! \brief CLI command manager show settings */
static char *handle_manager_show_settings(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
	switch (cmd) {
	case CLI_INIT:
		e->command = "manager show settings";
		e->usage =
			"Usage: manager show settings\n"
			"       Provides detailed list of the configuration of the Manager.\n";
		return NULL;
	case CLI_GENERATE:
		return NULL;
	}
#define FORMAT "  %-25.25s  %-15.15s\n"
#define FORMAT2 "  %-25.25s  %-15d\n"
	if (a->argc != 3) {
		return CLI_SHOWUSAGE;
	}
	ast_cli(a->fd, "\nGlobal Settings:\n");
	ast_cli(a->fd, "----------------\n");
	ast_cli(a->fd, FORMAT, "Manager (AMI):", AST_CLI_YESNO(manager_enabled));
	ast_cli(a->fd, FORMAT, "Web Manager (AMI/HTTP):", AST_CLI_YESNO(webmanager_enabled));
	ast_cli(a->fd, FORMAT, "TCP Bindaddress:", manager_enabled != 0 ? ast_sockaddr_stringify(&ami_desc.local_address) : "Disabled");
	ast_cli(a->fd, FORMAT2, "HTTP Timeout (minutes):", httptimeout);
	ast_cli(a->fd, FORMAT, "TLS Enable:", AST_CLI_YESNO(ami_tls_cfg.enabled));
	ast_cli(a->fd, FORMAT, "TLS Bindaddress:", ami_tls_cfg.enabled != 0 ? ast_sockaddr_stringify(&amis_desc.local_address) : "Disabled");
	ast_cli(a->fd, FORMAT, "TLS Certfile:", ami_tls_cfg.certfile);
	ast_cli(a->fd, FORMAT, "TLS Privatekey:", ami_tls_cfg.pvtfile);
	ast_cli(a->fd, FORMAT, "TLS Cipher:", ami_tls_cfg.cipher);
	ast_cli(a->fd, FORMAT, "Allow multiple login:", AST_CLI_YESNO(allowmultiplelogin));
	ast_cli(a->fd, FORMAT, "Display connects:", AST_CLI_YESNO(displayconnects));
	ast_cli(a->fd, FORMAT, "Timestamp events:", AST_CLI_YESNO(timestampevents));
	ast_cli(a->fd, FORMAT, "Channel vars:", S_OR(manager_channelvars, ""));
	ast_cli(a->fd, FORMAT, "Debug:", AST_CLI_YESNO(manager_debug));
	ast_cli(a->fd, FORMAT, "Block sockets:", AST_CLI_YESNO(block_sockets));
#undef FORMAT
#undef FORMAT2

	return CLI_SUCCESS;
}

static struct ast_cli_entry cli_manager[] = {
	AST_CLI_DEFINE(handle_showmancmd, "Show a manager interface command"),
	AST_CLI_DEFINE(handle_showmancmds, "List manager interface commands"),
	AST_CLI_DEFINE(handle_showmanconn, "List connected manager interface users"),
	AST_CLI_DEFINE(handle_showmaneventq, "List manager interface queued events"),
	AST_CLI_DEFINE(handle_showmanagers, "List configured manager users"),
	AST_CLI_DEFINE(handle_showmanager, "Display information on a specific manager user"),
	AST_CLI_DEFINE(handle_mandebug, "Show, enable, disable debugging of the manager code"),
	AST_CLI_DEFINE(handle_manager_reload, "Reload manager configurations"),
	AST_CLI_DEFINE(handle_manager_show_settings, "Show manager global settings"),
};

/*!
 * \internal
 * \brief Load the config channelvars variable.
 *
 * \param var Config variable to load.
 *
 * \return Nothing
 */
static void load_channelvars(struct ast_variable *var)
{
	struct manager_channel_variable *mcv;
	char *remaining = ast_strdupa(var->value);
	char *next;

	ast_free(manager_channelvars);
	manager_channelvars = ast_strdup(var->value);

	/*
	 * XXX TODO: To allow dialplan functions to have more than one
	 * parameter requires eliminating the '|' as a separator so we
	 * could use AST_STANDARD_APP_ARGS() to separate items.
	 */
	free_channelvars();
	AST_RWLIST_WRLOCK(&channelvars);
	while ((next = strsep(&remaining, ",|"))) {
		if (!(mcv = ast_calloc(1, sizeof(*mcv) + strlen(next) + 1))) {
			break;
		}
		strcpy(mcv->name, next); /* SAFE */
		if (strchr(next, '(')) {
			mcv->isfunc = 1;
		}
		AST_RWLIST_INSERT_TAIL(&channelvars, mcv, entry);
	}
	AST_RWLIST_UNLOCK(&channelvars);
}

/*! \internal \brief Free a user record.  Should already be removed from the list */
static void manager_free_user(struct ast_manager_user *user)
{
	if (user->a1_hash) {
		ast_free(user->a1_hash);
	}
	if (user->secret) {
		ast_free(user->secret);
	}
	ao2_t_callback(user->whitefilters, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, NULL, NULL, "unlink all white filters");
	ao2_t_callback(user->blackfilters, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, NULL, NULL, "unlink all black filters");
	ao2_t_ref(user->whitefilters, -1, "decrement ref for white container, should be last one");
	ao2_t_ref(user->blackfilters, -1, "decrement ref for black container, should be last one");
	ast_free_ha(user->ha);
	ast_free(user);
}

/*! \internal \brief Clean up resources on Asterisk shutdown */
static void manager_shutdown(void)
{
	struct ast_manager_user *user;

	if (registered) {
		ast_manager_unregister("Ping");
		ast_manager_unregister("Events");
		ast_manager_unregister("Logoff");
		ast_manager_unregister("Login");
		ast_manager_unregister("Challenge");
		ast_manager_unregister("Hangup");
		ast_manager_unregister("Status");
		ast_manager_unregister("Setvar");
		ast_manager_unregister("Getvar");
		ast_manager_unregister("GetConfig");
		ast_manager_unregister("GetConfigJSON");
		ast_manager_unregister("UpdateConfig");
		ast_manager_unregister("CreateConfig");
		ast_manager_unregister("ListCategories");
		ast_manager_unregister("Redirect");
		ast_manager_unregister("Atxfer");
		ast_manager_unregister("Originate");
		ast_manager_unregister("Command");
		ast_manager_unregister("ExtensionState");
		ast_manager_unregister("AbsoluteTimeout");
		ast_manager_unregister("MailboxStatus");
		ast_manager_unregister("MailboxCount");
		ast_manager_unregister("ListCommands");
		ast_manager_unregister("SendText");
		ast_manager_unregister("UserEvent");
		ast_manager_unregister("WaitEvent");
		ast_manager_unregister("CoreSettings");
		ast_manager_unregister("CoreStatus");
		ast_manager_unregister("Reload");
		ast_manager_unregister("CoreShowChannels");
		ast_manager_unregister("ModuleLoad");
		ast_manager_unregister("ModuleCheck");
		ast_manager_unregister("AOCMessage");
		ast_manager_unregister("Filter");
		ast_cli_unregister_multiple(cli_manager, ARRAY_LEN(cli_manager));
	}

	ast_tcptls_server_stop(&ami_desc);
	ast_tcptls_server_stop(&amis_desc);

	if (ami_tls_cfg.certfile) {
		ast_free(ami_tls_cfg.certfile);
		ami_tls_cfg.certfile = NULL;
	}
	if (ami_tls_cfg.pvtfile) {
		ast_free(ami_tls_cfg.pvtfile);
		ami_tls_cfg.pvtfile = NULL;
	}
	if (ami_tls_cfg.cipher) {
		ast_free(ami_tls_cfg.cipher);
		ami_tls_cfg.cipher = NULL;
	}

	if (sessions) {
		ao2_ref(sessions, -1);
		sessions = NULL;
	}

	while ((user = AST_LIST_REMOVE_HEAD(&users, list))) {
		manager_free_user(user);
	}
}

static int __init_manager(int reload)
{
	struct ast_config *ucfg = NULL, *cfg = NULL;
	const char *val;
	char *cat = NULL;
	int newhttptimeout = DEFAULT_HTTPTIMEOUT;
	struct ast_manager_user *user = NULL;
	struct ast_variable *var;
	struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
	char a1[256];
	char a1_hash[256];
	struct sockaddr_in ami_desc_local_address_tmp = { 0, };
	struct sockaddr_in amis_desc_local_address_tmp = { 0, };
	int tls_was_enabled = 0;

	if (!registered) {
		/* Register default actions */
		ast_manager_register_xml("Ping", 0, action_ping);
		ast_manager_register_xml("Events", 0, action_events);
		ast_manager_register_xml("Logoff", 0, action_logoff);
		ast_manager_register_xml("Login", 0, action_login);
		ast_manager_register_xml("Challenge", 0, action_challenge);
		ast_manager_register_xml("Hangup", EVENT_FLAG_SYSTEM | EVENT_FLAG_CALL, action_hangup);
		ast_manager_register_xml("Status", EVENT_FLAG_SYSTEM | EVENT_FLAG_CALL | EVENT_FLAG_REPORTING, action_status);
		ast_manager_register_xml("Setvar", EVENT_FLAG_CALL, action_setvar);
		ast_manager_register_xml("Getvar", EVENT_FLAG_CALL | EVENT_FLAG_REPORTING, action_getvar);
		ast_manager_register_xml("GetConfig", EVENT_FLAG_SYSTEM | EVENT_FLAG_CONFIG, action_getconfig);
		ast_manager_register_xml("GetConfigJSON", EVENT_FLAG_SYSTEM | EVENT_FLAG_CONFIG, action_getconfigjson);
		ast_manager_register_xml("UpdateConfig", EVENT_FLAG_CONFIG, action_updateconfig);
		ast_manager_register_xml("CreateConfig", EVENT_FLAG_CONFIG, action_createconfig);
		ast_manager_register_xml("ListCategories", EVENT_FLAG_CONFIG, action_listcategories);
		ast_manager_register_xml("Redirect", EVENT_FLAG_CALL, action_redirect);
		ast_manager_register_xml("Atxfer", EVENT_FLAG_CALL, action_atxfer);
		ast_manager_register_xml("Originate", EVENT_FLAG_ORIGINATE, action_originate);
		ast_manager_register_xml("Command", EVENT_FLAG_COMMAND, action_command);
		ast_manager_register_xml("ExtensionState", EVENT_FLAG_CALL | EVENT_FLAG_REPORTING, action_extensionstate);
		ast_manager_register_xml("AbsoluteTimeout", EVENT_FLAG_SYSTEM | EVENT_FLAG_CALL, action_timeout);
		ast_manager_register_xml("MailboxStatus", EVENT_FLAG_CALL | EVENT_FLAG_REPORTING, action_mailboxstatus);
		ast_manager_register_xml("MailboxCount", EVENT_FLAG_CALL | EVENT_FLAG_REPORTING, action_mailboxcount);
		ast_manager_register_xml("ListCommands", 0, action_listcommands);
		ast_manager_register_xml("SendText", EVENT_FLAG_CALL, action_sendtext);
		ast_manager_register_xml("UserEvent", EVENT_FLAG_USER, action_userevent);
		ast_manager_register_xml("WaitEvent", 0, action_waitevent);
		ast_manager_register_xml("CoreSettings", EVENT_FLAG_SYSTEM | EVENT_FLAG_REPORTING, action_coresettings);
		ast_manager_register_xml("CoreStatus", EVENT_FLAG_SYSTEM | EVENT_FLAG_REPORTING, action_corestatus);
		ast_manager_register_xml("Reload", EVENT_FLAG_CONFIG | EVENT_FLAG_SYSTEM, action_reload);
		ast_manager_register_xml("CoreShowChannels", EVENT_FLAG_SYSTEM | EVENT_FLAG_REPORTING, action_coreshowchannels);
		ast_manager_register_xml("ModuleLoad", EVENT_FLAG_SYSTEM, manager_moduleload);
		ast_manager_register_xml("ModuleCheck", EVENT_FLAG_SYSTEM, manager_modulecheck);
		ast_manager_register_xml("AOCMessage", EVENT_FLAG_AOC, action_aocmessage);

		ast_cli_register_multiple(cli_manager, ARRAY_LEN(cli_manager));
		ast_extension_state_add(NULL, NULL, manager_state_cb, NULL);
		registered = 1;
		/* Append placeholder event so master_eventq never runs dry */
		append_event("Event: Placeholder\r\n\r\n", 0);
	}

	ast_register_atexit(manager_shutdown);

	if ((cfg = ast_config_load2("manager.conf", "manager", config_flags)) == CONFIG_STATUS_FILEUNCHANGED) {
		return 0;
	}

	manager_enabled = DEFAULT_ENABLED;
	webmanager_enabled = DEFAULT_WEBENABLED;
	manager_debug = DEFAULT_MANAGERDEBUG;
	displayconnects = DEFAULT_DISPLAYCONNECTS;
	broken_events_action = DEFAULT_BROKENEVENTSACTION;
	block_sockets = DEFAULT_BLOCKSOCKETS;
	timestampevents = DEFAULT_TIMESTAMPEVENTS;
	httptimeout = DEFAULT_HTTPTIMEOUT;
	authtimeout = DEFAULT_AUTHTIMEOUT;
	authlimit = DEFAULT_AUTHLIMIT;

	if (!cfg || cfg == CONFIG_STATUS_FILEINVALID) {
		ast_log(LOG_NOTICE, "Unable to open AMI configuration manager.conf, or configuration is invalid. Asterisk management interface (AMI) disabled.\n");
		return 0;
	}

	/* default values */
	ast_copy_string(global_realm, S_OR(ast_config_AST_SYSTEM_NAME, DEFAULT_REALM), sizeof(global_realm));
	ast_sockaddr_setnull(&ami_desc.local_address);
	ast_sockaddr_setnull(&amis_desc.local_address);

	ami_desc_local_address_tmp.sin_family = AF_INET;
	amis_desc_local_address_tmp.sin_family = AF_INET;

	ami_desc_local_address_tmp.sin_port = htons(DEFAULT_MANAGER_PORT);

	tls_was_enabled = (reload && ami_tls_cfg.enabled);

	ami_tls_cfg.enabled = 0;
	if (ami_tls_cfg.certfile) {
		ast_free(ami_tls_cfg.certfile);
	}
	ami_tls_cfg.certfile = ast_strdup(AST_CERTFILE);
	if (ami_tls_cfg.pvtfile) {
		ast_free(ami_tls_cfg.pvtfile);
	}
	ami_tls_cfg.pvtfile = ast_strdup("");
	if (ami_tls_cfg.cipher) {
		ast_free(ami_tls_cfg.cipher);
	}
	ami_tls_cfg.cipher = ast_strdup("");

	free_channelvars();

	for (var = ast_variable_browse(cfg, "general"); var; var = var->next) {
		val = var->value;

		/* read tls config options while preventing unsupported options from being set */
		if (strcasecmp(var->name, "tlscafile")
			&& strcasecmp(var->name, "tlscapath")
			&& strcasecmp(var->name, "tlscadir")
			&& strcasecmp(var->name, "tlsverifyclient")
			&& strcasecmp(var->name, "tlsdontverifyserver")
			&& strcasecmp(var->name, "tlsclientmethod")
			&& strcasecmp(var->name, "sslclientmethod")
			&& !ast_tls_read_conf(&ami_tls_cfg, &amis_desc, var->name, val)) {
			continue;
		}

		if (!strcasecmp(var->name, "enabled")) {
			manager_enabled = ast_true(val);
		} else if (!strcasecmp(var->name, "block-sockets")) {
			block_sockets = ast_true(val);
		} else if (!strcasecmp(var->name, "webenabled")) {
			webmanager_enabled = ast_true(val);
		} else if (!strcasecmp(var->name, "port")) {
			ami_desc_local_address_tmp.sin_port = htons(atoi(val));
		} else if (!strcasecmp(var->name, "bindaddr")) {
			if (!inet_aton(val, &ami_desc_local_address_tmp.sin_addr)) {
				ast_log(LOG_WARNING, "Invalid address '%s' specified, using 0.0.0.0\n", val);
				memset(&ami_desc_local_address_tmp.sin_addr, 0,
				       sizeof(ami_desc_local_address_tmp.sin_addr));
			}
		} else if (!strcasecmp(var->name, "brokeneventsaction")) {
			broken_events_action = ast_true(val);
		} else if (!strcasecmp(var->name, "allowmultiplelogin")) {
			allowmultiplelogin = ast_true(val);
		} else if (!strcasecmp(var->name, "displayconnects")) {
			displayconnects = ast_true(val);
		} else if (!strcasecmp(var->name, "timestampevents")) {
			timestampevents = ast_true(val);
		} else if (!strcasecmp(var->name, "debug")) {
			manager_debug = ast_true(val);
		} else if (!strcasecmp(var->name, "httptimeout")) {
			newhttptimeout = atoi(val);
		} else if (!strcasecmp(var->name, "authtimeout")) {
			int timeout = atoi(var->value);

			if (timeout < 1) {
				ast_log(LOG_WARNING, "Invalid authtimeout value '%s', using default value\n", var->value);
			} else {
				authtimeout = timeout;
			}
		} else if (!strcasecmp(var->name, "authlimit")) {
			int limit = atoi(var->value);

			if (limit < 1) {
				ast_log(LOG_WARNING, "Invalid authlimit value '%s', using default value\n", var->value);
			} else {
				authlimit = limit;
			}
		} else if (!strcasecmp(var->name, "channelvars")) {
			load_channelvars(var);
		} else {
			ast_log(LOG_NOTICE, "Invalid keyword <%s> = <%s> in manager.conf [general]\n",
				var->name, val);
		}
	}

	ast_sockaddr_to_sin(&amis_desc.local_address, &amis_desc_local_address_tmp);

	/* if the amis address has not been set, default is the same as non secure ami */
	if (!amis_desc_local_address_tmp.sin_addr.s_addr) {
		amis_desc_local_address_tmp.sin_addr =
		    ami_desc_local_address_tmp.sin_addr;
	}

	if (!amis_desc_local_address_tmp.sin_port) {
		amis_desc_local_address_tmp.sin_port = htons(DEFAULT_MANAGER_TLS_PORT);
	}

	if (manager_enabled) {
		ast_sockaddr_from_sin(&ami_desc.local_address, &ami_desc_local_address_tmp);
		ast_sockaddr_from_sin(&amis_desc.local_address, &amis_desc_local_address_tmp);
	}

	AST_RWLIST_WRLOCK(&users);

	/* First, get users from users.conf */
	ucfg = ast_config_load2("users.conf", "manager", config_flags);
	if (ucfg && (ucfg != CONFIG_STATUS_FILEUNCHANGED) && ucfg != CONFIG_STATUS_FILEINVALID) {
		const char *hasmanager;
		int genhasmanager = ast_true(ast_variable_retrieve(ucfg, "general", "hasmanager"));

		while ((cat = ast_category_browse(ucfg, cat))) {
			if (!strcasecmp(cat, "general")) {
				continue;
			}

			hasmanager = ast_variable_retrieve(ucfg, cat, "hasmanager");
			if ((!hasmanager && genhasmanager) || ast_true(hasmanager)) {
				const char *user_secret = ast_variable_retrieve(ucfg, cat, "secret");
				const char *user_read = ast_variable_retrieve(ucfg, cat, "read");
				const char *user_write = ast_variable_retrieve(ucfg, cat, "write");
				const char *user_displayconnects = ast_variable_retrieve(ucfg, cat, "displayconnects");
				const char *user_writetimeout = ast_variable_retrieve(ucfg, cat, "writetimeout");

				/* Look for an existing entry,
				 * if none found - create one and add it to the list
				 */
				if (!(user = get_manager_by_name_locked(cat))) {
					if (!(user = ast_calloc(1, sizeof(*user)))) {
						break;
					}

					/* Copy name over */
					ast_copy_string(user->username, cat, sizeof(user->username));
					/* Insert into list */
					AST_LIST_INSERT_TAIL(&users, user, list);
					user->ha = NULL;
					user->keep = 1;
					user->readperm = -1;
					user->writeperm = -1;
					/* Default displayconnect from [general] */
					user->displayconnects = displayconnects;
					user->writetimeout = 100;
				}

				if (!user_secret) {
					user_secret = ast_variable_retrieve(ucfg, "general", "secret");
				}
				if (!user_read) {
					user_read = ast_variable_retrieve(ucfg, "general", "read");
				}
				if (!user_write) {
					user_write = ast_variable_retrieve(ucfg, "general", "write");
				}
				if (!user_displayconnects) {
					user_displayconnects = ast_variable_retrieve(ucfg, "general", "displayconnects");
				}
				if (!user_writetimeout) {
					user_writetimeout = ast_variable_retrieve(ucfg, "general", "writetimeout");
				}

				if (!ast_strlen_zero(user_secret)) {
					if (user->secret) {
						ast_free(user->secret);
					}
					user->secret = ast_strdup(user_secret);
				}

				if (user_read) {
					user->readperm = get_perm(user_read);
				}
				if (user_write) {
					user->writeperm = get_perm(user_write);
				}
				if (user_displayconnects) {
					user->displayconnects = ast_true(user_displayconnects);
				}
				if (user_writetimeout) {
					int value = atoi(user_writetimeout);
					if (value < 100) {
						ast_log(LOG_WARNING, "Invalid writetimeout value '%d' in users.conf\n", value);
					} else {
						user->writetimeout = value;
					}
				}
			}
		}
		ast_config_destroy(ucfg);
	}

	/* cat is NULL here in any case */

	while ((cat = ast_category_browse(cfg, cat))) {
		struct ast_ha *oldha;

		if (!strcasecmp(cat, "general")) {
			continue;
		}

		/* Look for an existing entry, if none found - create one and add it to the list */
		if (!(user = get_manager_by_name_locked(cat))) {
			if (!(user = ast_calloc(1, sizeof(*user)))) {
				break;
			}
			/* Copy name over */
			ast_copy_string(user->username, cat, sizeof(user->username));

			user->ha = NULL;
			user->readperm = 0;
			user->writeperm = 0;
			/* Default displayconnect from [general] */
			user->displayconnects = displayconnects;
			user->writetimeout = 100;
			user->whitefilters = ao2_container_alloc(1, NULL, NULL);
			user->blackfilters = ao2_container_alloc(1, NULL, NULL);

			/* Insert into list */
			AST_RWLIST_INSERT_TAIL(&users, user, list);
		} else {
			ao2_t_callback(user->whitefilters, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, NULL, NULL, "unlink all white filters");
			ao2_t_callback(user->blackfilters, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, NULL, NULL, "unlink all black filters");
		}

		/* Make sure we keep this user and don't destroy it during cleanup */
		user->keep = 1;
		oldha = user->ha;
		user->ha = NULL;

		var = ast_variable_browse(cfg, cat);
		for (; var; var = var->next) {
			if (!strcasecmp(var->name, "secret")) {
				if (user->secret) {
					ast_free(user->secret);
				}
				user->secret = ast_strdup(var->value);
			} else if (!strcasecmp(var->name, "deny") ||
				       !strcasecmp(var->name, "permit")) {
				user->ha = ast_append_ha(var->name, var->value, user->ha, NULL);
			}  else if (!strcasecmp(var->name, "read") ) {
				user->readperm = get_perm(var->value);
			}  else if (!strcasecmp(var->name, "write") ) {
				user->writeperm = get_perm(var->value);
			}  else if (!strcasecmp(var->name, "displayconnects") ) {
				user->displayconnects = ast_true(var->value);
			} else if (!strcasecmp(var->name, "writetimeout")) {
				int value = atoi(var->value);
				if (value < 100) {
					ast_log(LOG_WARNING, "Invalid writetimeout value '%s' at line %d\n", var->value, var->lineno);
				} else {
					user->writetimeout = value;
				}
			} else if (!strcasecmp(var->name, "eventfilter")) {
				const char *value = var->value;
				regex_t *new_filter = ao2_t_alloc(sizeof(*new_filter), event_filter_destructor, "event_filter allocation");
				if (new_filter) {
					int is_blackfilter;
					if (value[0] == '!') {
						is_blackfilter = 1;
						value++;
					} else {
						is_blackfilter = 0;
					}
					if (regcomp(new_filter, value, 0)) {
						ao2_t_ref(new_filter, -1, "failed to make regx");
					} else {
						if (is_blackfilter) {
							ao2_t_link(user->blackfilters, new_filter, "link new filter into black user container");
						} else {
							ao2_t_link(user->whitefilters, new_filter, "link new filter into white user container");
						}
					}
				}
			} else {
				ast_debug(1, "%s is an unknown option.\n", var->name);
			}
		}
		ast_free_ha(oldha);
	}
	ast_config_destroy(cfg);

	/* Perform cleanup - essentially prune out old users that no longer exist */
	AST_RWLIST_TRAVERSE_SAFE_BEGIN(&users, user, list) {
		if (user->keep) {	/* valid record. clear flag for the next round */
			user->keep = 0;

			/* Calculate A1 for Digest auth */
			snprintf(a1, sizeof(a1), "%s:%s:%s", user->username, global_realm, user->secret);
			ast_md5_hash(a1_hash,a1);
			if (user->a1_hash) {
				ast_free(user->a1_hash);
			}
			user->a1_hash = ast_strdup(a1_hash);
			continue;
		}
		/* We do not need to keep this user so take them out of the list */
		AST_RWLIST_REMOVE_CURRENT(list);
		ast_debug(4, "Pruning user '%s'\n", user->username);
		manager_free_user(user);
	}
	AST_RWLIST_TRAVERSE_SAFE_END;

	AST_RWLIST_UNLOCK(&users);

	if (!reload) {
		/* If you have a NULL hash fn, you only need a single bucket */
		sessions = ao2_container_alloc(1, NULL, mansession_cmp_fn);
	}

	if (webmanager_enabled && manager_enabled) {
		if (!webregged) {

			ast_http_uri_link(&rawmanuri);
			ast_http_uri_link(&manageruri);
			ast_http_uri_link(&managerxmluri);

			ast_http_uri_link(&arawmanuri);
			ast_http_uri_link(&amanageruri);
			ast_http_uri_link(&amanagerxmluri);
			webregged = 1;
		}
	} else {
		if (webregged) {
			ast_http_uri_unlink(&rawmanuri);
			ast_http_uri_unlink(&manageruri);
			ast_http_uri_unlink(&managerxmluri);

			ast_http_uri_unlink(&arawmanuri);
			ast_http_uri_unlink(&amanageruri);
			ast_http_uri_unlink(&amanagerxmluri);
			webregged = 0;
		}
	}

	if (newhttptimeout > 0) {
		httptimeout = newhttptimeout;
	}

	manager_event(EVENT_FLAG_SYSTEM, "Reload", "Module: Manager\r\nStatus: %s\r\nMessage: Manager reload Requested\r\n", manager_enabled ? "Enabled" : "Disabled");

	ast_tcptls_server_start(&ami_desc);
	if (tls_was_enabled && !ami_tls_cfg.enabled) {
		ast_tcptls_server_stop(&amis_desc);
	} else if (ast_ssl_setup(amis_desc.tls_cfg)) {
		ast_tcptls_server_start(&amis_desc);
	}

	return 0;
}

/* clear out every entry in the channelvar list */
static void free_channelvars(void)
{
	struct manager_channel_variable *var;
	AST_RWLIST_WRLOCK(&channelvars);
	while ((var = AST_RWLIST_REMOVE_HEAD(&channelvars, entry))) {
		ast_free(var);
	}
	AST_RWLIST_UNLOCK(&channelvars);
}

int init_manager(void)
{
	return __init_manager(0);
}

int reload_manager(void)
{
	return __init_manager(1);
}

int astman_datastore_add(struct mansession *s, struct ast_datastore *datastore)
{
	AST_LIST_INSERT_HEAD(&s->session->datastores, datastore, entry);

	return 0;
}

int astman_datastore_remove(struct mansession *s, struct ast_datastore *datastore)
{
	return AST_LIST_REMOVE(&s->session->datastores, datastore, entry) ? 0 : -1;
}

struct ast_datastore *astman_datastore_find(struct mansession *s, const struct ast_datastore_info *info, const char *uid)
{
	struct ast_datastore *datastore = NULL;

	if (info == NULL)
		return NULL;

	AST_LIST_TRAVERSE_SAFE_BEGIN(&s->session->datastores, datastore, entry) {
		if (datastore->info != info) {
			continue;
		}

		if (uid == NULL) {
			/* matched by type only */
			break;
		}

		if ((datastore->uid != NULL) && !strcasecmp(uid, datastore->uid)) {
			/* Matched by type AND uid */
			break;
		}
	}
	AST_LIST_TRAVERSE_SAFE_END;

	return datastore;
}
