if(@txpinterface == 'admin') {
	global $smd_akey_event, $smd_akey_styles;
	$smd_akey_event = 'smd_akey';

	$smd_akey_styles = array(
		'list' =>
         '.smd_hidden { display:none; }',
	);

	add_privs($smd_akey_event, '1');
	add_privs('plugin_prefs.smd_access_keys', '1');
	register_tab('extensions', $smd_akey_event, smd_akey_gTxt('smd_akey_tab_name'));
	register_callback('smd_akey_dispatcher', $smd_akey_event);
	register_callback('smd_akey_welcome', 'plugin_lifecycle.smd_access_keys');
	register_callback('smd_akey_prefs', 'plugin_prefs.smd_access_keys');
}

global $smd_akey_prefs;
$smd_akey_prefs = array(
	'smd_akey_file_download_expires' => array(
		'html'     => 'text_input',
		'type'     => PREF_HIDDEN,
		'position' => 10,
		'default'  => '3600',
	),
	'smd_akey_salt_length' => array(
		'html'     => 'text_input',
		'type'     => PREF_HIDDEN,
		'position' => 20,
		'default'  => '8',
	),
	'smd_akey_log_ip' => array(
		'html'     => 'yesnoradio',
		'type'     => PREF_HIDDEN,
		'position' => 30,
		'default'  => '0',
	),
);

if (!defined('SMD_AKEYS')) define("SMD_AKEYS", 'smd_akeys');

register_callback('smd_access_protect_download', 'file_download');

// ********************
// ADMIN SIDE INTERFACE
// ********************
// Jump off point for event/steps
function smd_akey_dispatcher($evt, $stp) {
	if(!$stp or !in_array($stp, array(
			'smd_akey_table_install',
			'smd_akey_table_remove',
			'smd_akey_create',
			'smd_akey_prefs',
			'smd_akey_prefsave',
			'smd_akey_multi_edit',
			'smd_akey_change_pageby',
		))) {
		smd_akey('');
	} else $stp();
}

// Bootstrap when installed/deleted
function smd_akey_welcome($evt, $stp) {
	$msg = '';
	switch ($stp) {
		case 'installed':
			smd_akey_table_install(0);
			$msg = 'Restrict your TXP world :-)';
			break;
		case 'deleted':
			smd_akey_table_remove(0);
			break;
	}
	return $msg;
}

// Main admin interface
function smd_akey($msg='') {
	global $smd_akey_event, $smd_akey_list_pageby, $smd_akey_styles, $logging, $smd_akey_prefs;

	pagetop(smd_akey_gTxt('smd_akey_tab_name'), $msg);

	if (smd_akey_table_exist(1)) {
		extract(gpsa(array('page', 'sort', 'dir', 'crit', 'search_method')));
		if ($sort === '') $sort = get_pref('smd_akey_sort_column', 'time');
		if ($dir === '') $dir = get_pref('smd_akey_sort_dir', 'desc');
		$dir = ($dir == 'asc') ? 'asc' : 'desc';

		switch ($sort) {
			case 'page':
				$sort_sql = 'page '.$dir.', time desc';
			break;

			case 'triggah':
				$sort_sql = 'triggah '.$dir.', time desc';
			break;

			case 'maximum':
				$sort_sql = 'maximum '.$dir.', time desc';
			break;

			case 'accesses':
				$sort_sql = 'accesses '.$dir.', time desc';
			break;

			case 'ip':
				$sort_sql = 'ip '.$dir.', time desc';
			break;

			default:
				$sort = 'time';
				$sort_sql = 'time '.$dir;
			break;
		}

		set_pref('smd_akey_sort_column', $sort, 'smd_akey', PREF_HIDDEN, '', 0, PREF_PRIVATE);
		set_pref('smd_akey_sort_dir', $dir, 'smd_akey', PREF_HIDDEN, '', 0, PREF_PRIVATE);

		$switch_dir = ($dir == 'desc') ? 'asc' : 'desc';

		$criteria = 1;

		if ($search_method and $crit) {
			$crit_escaped = doSlash(str_replace(array('\\','%','_','\''), array('\\\\','\\%','\\_', '\\\''), $crit));
			$critsql = array(
				'page'     => "page like '%$crit_escaped%'",
				'triggah'  => "triggah like '%$crit_escaped%'",
				'maximum'  => "maximum = '$crit_escaped'",
				'accesses' => "accesses = '$crit_escaped'",
				'ip'       => "ip like '%$crit_escaped%'",
			);

			if (array_key_exists($search_method, $critsql)) {
				$criteria = $critsql[$search_method];
				$limit = 500;
			} else {
				$search_method = '';
				$crit = '';
			}
		} else {
			$search_method = '';
			$crit = '';
		}

		$total = safe_count(SMD_AKEYS, "$criteria");

		echo '<div id="'.$smd_akey_event.'_control" class="txp-control-panel">';

		if ($total < 1) {
			if ($criteria != 1) {
				echo n.smd_akey_search_form($crit, $search_method).
					n.graf(gTxt('no_results_found'), ' class="indicator"').'</div>';
			}
		}

		$limit = max($smd_akey_list_pageby, 15);

		list($page, $offset, $numPages) = pager($total, $limit, $page);

		echo n.smd_akey_search_form($crit, $search_method).'</div>';

		// Retrieve the secret keyring table entries
		$secring = safe_rows('*', SMD_AKEYS, "$criteria order by $sort_sql limit $offset, $limit");

		// Set up the buttons and column info
		$newbtn = '<a class="navlink" href="#" onclick="return smd_akey_togglenew();">'.smd_akey_gTxt('smd_akey_btn_new').'</a>';
		$prefbtn = '<a class="navlink" href="?event='.$smd_akey_event.a.'step=smd_akey_prefs">'.smd_akey_gTxt('smd_akey_btn_pref').'</a>';
		$showip = get_pref('smd_akey_log_ip', $smd_akey_prefs['smd_akey_log_ip']['default'], 1);

		echo <<<EOC
<script type="text/javascript">
function smd_akey_togglenew() {
	box = jQuery("#smd_akey_create");
	if (box.css("display") == "none") {
		box.show();
	} else {
		box.hide();
	}
	jQuery("input.smd_focus").focus();
	return false;
}
jQuery(function() {
	jQuery("#smd_akey_add").click(function () {
		jQuery("#smd_akey_step").val('smd_akey_create');
		jQuery("#smd_akey_form").removeAttr('onsubmit').submit();
	});
});
</script>
EOC;
		// Inject styles
		echo '<style type="text/css">' . $smd_akey_styles['list'] . '</style>';

		// Access key list
		echo n.'<div id="'.$smd_akey_event.'_container" class="txp-container txp-list">';
		echo '<form name="longform" id="smd_akey_form" action="index.php" method="post" onsubmit="return verify(\''.gTxt('are_you_sure').'\')">';
		echo startTable('list');
		echo n.'<thead>'
			.n.tr(tda($newbtn . sp . $prefbtn, ' class="noline"'))
			.n.tr(
				n.column_head(smd_akey_gTxt('smd_akey_page'), 'page', $smd_akey_event, true, $switch_dir, $crit, $search_method, (('page' == $sort) ? "$dir " : '').'page').
				n.column_head(smd_akey_gTxt('smd_akey_trigger'), 'triggah', $smd_akey_event, true, $switch_dir, $crit, $search_method, (('triggah' == $sort) ? "$dir " : '')).
				n.column_head(smd_akey_gTxt('smd_akey_time'), 'time', $smd_akey_event, true, $switch_dir, $crit, $search_method, (('time' == $sort) ? "$dir " : '').'date time').
				n.column_head(smd_akey_gTxt('smd_akey_max'), 'maximum', $smd_akey_event, true, $switch_dir, $crit, $search_method, (('maximum' == $sort) ? "$dir " : '')).
				n.column_head(smd_akey_gTxt('smd_akey_accesses'), 'accesses', $smd_akey_event, true, $switch_dir, $crit, $search_method, (('accesses' == $sort) ? "$dir " : '')).
				(($showip) ? n.column_head('IP', 'ip', $smd_akey_event, true, $switch_dir, $crit, $search_method, (('ip' == $sort) ? "$dir " : '').'ip') : '').
				n.hCell('', '', ' class="multi-edit"')
			).
			n.'</thead>';

		$multiOpts = array('smd_akey_delete' => gTxt('delete'));

		echo '<tfoot>' . tr(tda(
				select_buttons()
				.n.selectInput('smd_akey_multi_edit', $multiOpts, '', true)
				.n.eInput($smd_akey_event)
				.n.fInput('submit', '', gTxt('go'), 'smallerbox')
			,' class="multi-edit" colspan="' . (($showip) ? 7 : 6) . '" style="text-align: right; border: none;"'));
		echo '</tfoot>';
		echo '<tbody>';

		// New access key row
		echo '<tr id="smd_akey_create" class="smd_hidden">';
		echo td(fInput('hidden', 'step', 'smd_akey_multi_edit', '', '', '', '', '', 'smd_akey_step').fInput('text', 'smd_akey_newpage', '', 'smd_focus', '', '', '60'))
			.td(fInput('text', 'smd_akey_triggah', ''))
			.td(fInput('text', 'smd_akey_time', safe_strftime('%Y-%m-%d %H:%M:%S'), '', '', '', '25'))
			.td(fInput('text', 'smd_akey_maximum', '', '', '', '', '5'))
			.td('&nbsp;')
			. (($showip) ? td('&nbsp;') : '')
			.td(fInput('submit', 'smd_akey_add', gTxt('add'), 'smallerbox', '', '', '', '', 'smd_akey_add'));
		echo '</tr>';

		// Remaining access keys
		foreach ($secring as $secidx => $data) {
			if ($showip) {
				$ips = do_list($data['ip'], ' ');
				$iplist = array();
				foreach ($ips as $ip) {
					$iplist[] = ($logging == 'none') ? $ip : eLink('log', 'log_list', 'search_method', 'ip', $ip, 'crit', $ip);
				}
			}
			$dkey = $data['page'].'|'.$data['t_hex'];
			echo tr(
				td('<a href="'.$data['page'].'">'.$data['page'].'</a>', '', 'page')
				. td($data['triggah'])
				. td(safe_strftime('%Y-%m-%d %H:%M:%S', $data['time']), 85, 'date time')
				. td($data['maximum'])
				. td($data['accesses'])
				. ( ($showip) ? td( trim(join(' ', $iplist)), 20, 'ip' ) : '' )
				. td( fInput('checkbox', 'selected[]', $dkey, 'checkbox'), '', 'multi-edit')
			);
		}
		echo '</tbody>';
		echo endTable();
		echo '</form>';

		echo '<div id="'.$smd_akey_event.'_navigation" class="txp-navigation">'.
			n.nav_form($smd_akey_event, $page, $numPages, $sort, $dir, $crit, $search_method, $total, $limit).

			n.pageby_form($smd_akey_event, $smd_akey_list_pageby).
			n.'</div>'.n.'</div>';

	} else {
		// Table not installed
		$btnInstall = '<form method="post" action="?event='.$smd_akey_event.a.'step=smd_akey_table_install" style="display:inline">'.fInput('submit', 'submit', smd_akey_gTxt('smd_akey_tbl_install_lbl'), 'smallerbox').'</form>';
		$btnStyle = ' style="border:0;height:25px"';
		echo startTable('list');
		echo tr(tda(strong(smd_akey_gTxt('smd_akey_prefs_some_tbl')).br.br
				.smd_akey_gTxt('smd_akey_prefs_some_explain').br.br
				.smd_akey_gTxt('smd_akey_prefs_some_opts'), ' colspan="2"')
		);
		echo tr(tda($btnInstall, $btnStyle));
		echo endTable();
	}
}

// Change and store qty-per-page value
function smd_akey_change_pageby() {
	event_change_pageby('smd_akey');
	smd_akey();
}

// The search dropdown list
function smd_akey_search_form($crit, $method) {
	global $smd_akey_event, $smd_akey_prefs;

	$doip = get_pref('smd_akey_log_ip', $smd_akey_prefs['smd_akey_log_ip']['default'], 1);

	$methods =	array(
		'page'     => smd_akey_gTxt('smd_akey_page'),
		'triggah'  => smd_akey_gTxt('smd_akey_trigger'),
		'maximum'  => smd_akey_gTxt('smd_akey_max'),
		'accesses' => smd_akey_gTxt('smd_akey_accesses'),
	);

	if ($doip) {
		$methods['ip'] = gTxt('IP');
	}

	return search_form($smd_akey_event, '', $crit, $methods, $method, 'page');
}

// Create a key from the admin side's 'New key' button
function smd_akey_create() {
	extract(gpsa(array('smd_akey_newpage', 'smd_akey_triggah', 'smd_akey_time', 'smd_akey_maximum')));

	if ($smd_akey_newpage) {
		// Just call the public tag with the relevant options
		$key = smd_access_key(
			array(
				'url' => $smd_akey_newpage,
				'trigger' => $smd_akey_triggah,
				'start' => $smd_akey_time,
				'max' => $smd_akey_maximum,
			)
		);
		$msg = smd_akey_gTxt('smd_akey_generated', array('{key}' => $key));
	} else {
		$msg = array(smd_akey_gTxt('smd_akey_need_page'), E_ERROR);
	}
	smd_akey($msg);
}

// Handle submission of the multi-edit dropdown options
function smd_akey_multi_edit() {
	$selected = gps('selected');
	$operation = gps('smd_akey_multi_edit');
	$del = 0;
	$msg = '';

	switch ($operation) {
		case 'smd_akey_delete':
			if ($selected) {
				foreach ($selected as $sel) {
					$parts = explode('|', $sel);
					$ret = safe_delete(SMD_AKEYS, "page = '" . $parts[0] . "' AND t_hex = '" . $parts[1] . "'");
					$del = ($ret) ? $del+1 : $del;
				}
				$msg = smd_akey_gTxt('smd_akey_deleted', array('{deleted}' => $del));
			}
		break;
	}

	smd_akey($msg);
}

// Display the prefs
function smd_akey_prefs() {
	global $smd_akey_event, $smd_akey_prefs;

	pagetop(smd_akey_gTxt('smd_akey_pref_legend'));

	$out = array();
	$out[] = '<form name="smd_akey_prefs" id="smd_akey_prefs" action="index.php" method="post">';
	$out[] = eInput($smd_akey_event).sInput('smd_akey_prefsave');
	$out[] = startTable('list');
	$out[] = tr(tdcs(strong(smd_akey_gTxt('smd_akey_pref_legend')), 2));
	foreach ($smd_akey_prefs as $idx => $prefobj) {
		$subout = array();
		$subout[] = tda('<label for="'.$idx.'">'.smd_akey_gTxt($idx).'</label>', ' class="noline" style="text-align: right; vertical-align: middle;"');
		$val = get_pref($idx, $prefobj['default']);
		switch ($prefobj['html']) {
			case 'text_input':
				$subout[] = fInputCell($idx, $val, '', '', '', $idx);
			break;
			case 'yesnoradio':
				$subout[] = tda(yesnoRadio($idx, $val),' class="noline"');
			break;
		}
		$out[] = tr(join(n ,$subout));
	}

	$out[] = tr(tda('&nbsp;', ' class="noline"') . tda(fInput('submit', '', gTxt('save'), 'publish'), ' class="noline"'));
	$out[] = endTable();
	$out[] = '</form>';

	echo join(n, $out);
}

// Save the prefs
function smd_akey_prefsave() {
	global $smd_akey_event, $smd_akey_prefs;

	foreach ($smd_akey_prefs as $idx => $prefobj) {
		$val = ps($idx);
		set_pref($idx, $val, $smd_akey_event, $prefobj['type'], $prefobj['html'], $prefobj['position']);
	}

	$msg = smd_akey_gTxt('smd_akey_prefs_saved');

	smd_akey($msg);
}

// Add akey table if not already installed
function smd_akey_table_install($showpane='1') {
	$GLOBALS['txp_err_count'] = 0;
	$ret = '';
	$sql = array();

	// Use 'triggah' and 'maximum' because 'trigger' and 'max' are reserved words.
	$sql[] = "CREATE TABLE IF NOT EXISTS `".PFX.SMD_AKEYS."` (
		`page` varchar(255) NOT NULL default '',
		`t_hex` varchar(12) NOT NULL default '',
		`time` int(14) NOT NULL default 0,
		`secret` varchar(255) NOT NULL default '',
		`triggah` varchar(255) NULL default '',
		`maximum` int(11) NULL default 0,
		`accesses` int(11) NULL default 0,
		`ip` text NOT NULL default '',
		PRIMARY KEY (`page`,`t_hex`)
	) ENGINE=MyISAM";

	if(gps('debug')) {
		dmp($sql);
	}
	foreach ($sql as $qry) {
		$ret = safe_query($qry);
		if ($ret===false) {
			$GLOBALS['txp_err_count']++;
			echo "<b>".$GLOBALS['txp_err_count'].".</b> ".mysql_error()."<br />\n";
			echo "<!--\n $qry \n-->\n";
		}
	}

	// Be kind to beta testers and update table
	$flds = getThings('describe `'.PFX.SMD_AKEYS.'`');
	if (!in_array('ip',$flds)) {
		safe_alter(SMD_AKEYS, "add `ip` text NOT NULL default '' after `accesses`");
	}

	// Spit out results
	if ($GLOBALS['txp_err_count'] == 0) {
		if ($showpane) {
			$msg = smd_akey_gTxt('smd_akey_tbl_installed');
			smd_akey($msg);
		}
	} else {
		if ($showpane) {
			$msg = smd_akey_gTxt('smd_akey_tbl_not_installed');
			smd_akey($msg);
		}
	}
}

// ------------------------
// Drop table if in database
function smd_akey_table_remove() {
	$ret = '';
	$sql = array();
	$GLOBALS['txp_err_count'] = 0;
	if (smd_akey_table_exist()) {
		$sql[] = "DROP TABLE IF EXISTS " .PFX.SMD_AKEYS. "; ";
		if(gps('debug')) {
			dmp($sql);
		}
		foreach ($sql as $qry) {
			$ret = safe_query($qry);
			if ($ret===false) {
				$GLOBALS['txp_err_count']++;
				echo "<b>".$GLOBALS['txp_err_count'].".</b> ".mysql_error()."<br />\n";
				echo "<!--\n $qry \n-->\n";
			}
		}
	}
	if ($GLOBALS['txp_err_count'] == 0) {
		$msg = smd_akey_gTxt('smd_akey_tbl_removed');
	} else {
		$msg = smd_akey_gTxt('smd_akey_tbl_not_removed');
		smd_akey($msg);
	}
}

// ------------------------
function smd_akey_table_exist($all='') {
	if ($all) {
		$tbls = array(SMD_AKEYS => 8);
		$out = count($tbls);
		foreach ($tbls as $tbl => $cols) {
			if (gps('debug')) {
				echo "++ TABLE ".$tbl." HAS ".count(@safe_show('columns', $tbl))." COLUMNS; REQUIRES ".$cols." ++".br;
			}
			if (count(@safe_show('columns', $tbl)) == $cols) {
				$out--;
			}
		}
		return ($out===0) ? 1 : 0;
	} else {
		if (gps('debug')) {
			echo "++ TABLE ".SMD_AKEYS." HAS ".count(@safe_show('columns', SMD_AKEYS))." COLUMNS;";
		}
		return(@safe_show('columns', SMD_AKEYS));
	}
}

//**********************
// PUBLIC SIDE INTERFACE
//**********************
function smd_access_key($atts, $thing=NULL) {
	global $smd_akey_prefs;

	extract(lAtts(array(
		'secret'    => '',
		'url'       => '',
		'site_name' => '1',
		'start'     => '',
		'trigger'   => 'smd_akey',
		'max'       => '',
		'extra'     => '',
	),$atts));

	if (smd_akey_table_exist(1)) {
		$trigger = trim($trigger);
		$trigger = ($trigger == 'file_download') ? '' : $trigger;

		$smd_akey_salt_length = get_pref('smd_akey_salt_length', $smd_akey_prefs['smd_akey_salt_length']['default']);

		// Without a URL, assume current page
		$page = rtrim( (($url) ? $url : serverSet('REQUEST_URI')), '/');
		if ($site_name) {
			$page = (strpos($page, 'http') === 0) ? $page : rtrim(hu, '/') . $page;
		}

		if (!$secret) {
			$secret = uniqid('', true);
		}

		$salt = substr(md5(uniqid(rand(), true)), 0, $smd_akey_salt_length);
		$plen = strlen($page) % 32; // Because 32 is the size of an md5 string and we don't want to fall off the end

		// Generate a timestamp. The clock starts ticking from this moment
		$ts = ($start) ? safe_strtotime($start) : time();
		$ts = ($ts === false) ? time() : $ts;
		$t_hex = dechex($ts);

		// Update/insert the remaining data
		$exists = safe_field('page', SMD_AKEYS, "page='".doSlash($page)."' AND t_hex='".doSlash($t_hex)."'");
		$maxinfo = '';
		if ($max) {
			$maxinfo = ", maximum = '".doSlash($max)."', accesses = '0'";
		}
		if ($exists) {
			safe_update(SMD_AKEYS, "triggah='".doSlash($trigger)."', time='".doSlash($ts)."', secret='".doSlash($secret)."'" . $maxinfo, "page='".doSlash($page)."' AND t_hex='".doSlash($t_hex)."'");
		} else {
			safe_insert(SMD_AKEYS, "page='".doSlash($page)."', t_hex='".doSlash($t_hex)."', triggah='".doSlash($trigger)."', secret='".doSlash($secret)."', time='".doSlash($ts)."'" . $maxinfo);
	   }

		// Tack on max if applicable
		$max = ($max) ? '.'.$max : '';

		// And any extra
		$extratok = ($extra) ? '/'.$extra : '';

		// Create the raw token...
		$token = md5($salt.$secret.$page.$trigger.$t_hex.$max.$extra);
		// ... and insert the salt partway through
		$salty_token = substr($token, 0, $plen) . $salt . substr($token, $plen);

		return $page . (($trigger) ? '/' . $trigger : '') . '/' . $salty_token . '/' . $t_hex . $max . $extratok;
	} else {
		trigger_error(smd_akey_gTxt('smd_akey_tbl_not_installed'), E_USER_NOTICE);
	}
}

// Protect a page for a given time limit from the moment the
// access token has been generated. Embed this tag at the top
// of the page you want to protect or wrap it around part of a
// page you wish to protect. The unique URL to the resource
// is generated by <txp:smd_access_key />
function smd_access_protect($atts, $thing=NULL) {
	global $smd_access_error, $smd_access_errcode, $smd_akey_info, $smd_akey_prefs, $permlink_mode;

	extract(lAtts(array(
		'trigger'      => 'smd_akey',
		'trigger_mode' => 'exact', // exact, begins, ends, contains
		'site_name'    => '1',
		'force'        => '0',
		'expires'      => '3600', // in seconds
	),$atts));

	if (smd_akey_table_exist(1)) {
		$url = serverSet('REQUEST_URI');
		$url = (($site_name && (strpos($url, hu) === false)) ? rtrim(hu, '/') : '') . $url;
		$parts = explode('/', $url);

		// Look for one of the triggers in the URL and bomb out if we find it
		$triggers = do_list($trigger);
		$trigger = $triggers[0]; // Initialise to the first value in case no others are found

		$trigoff = false;
		foreach ($triggers as $trig) {
			switch ($trigger_mode) {
				case 'exact':
					$trigoff = array_search($trig, $parts);
					$realTrig = $trig;
				break;
				case 'begins':
					$count = 0;
					foreach ($parts as $part) {
						if (strpos($part, $trig) === 0) {
							$trigoff = $count;
							$realTrig = $part;
							break;
						}
						$count++;
					}
				break;
				case 'ends':
					$count = 0;
					foreach ($parts as $part) {
						$re = '/.+'.preg_quote($trig).'$/i';
						if (preg_match($re, $part) === 1) {
							$trigoff = $count;
							$realTrig = $part;
							break;
						}
						$count++;
					}
				break;
				case 'contains':
					$count = 0;
					foreach ($parts as $part) {
						$re = '/.*'.preg_quote($trig).'.*$/i';
						if (preg_match($re, $part) === 1) {
							$trigoff = $count;
							$realTrig = $part;
							break;
						}
						$count++;
					}
				break;
			}
			if ($trigoff !== false) {
				// Found it so set the trigger to be the current item and jump out
				$trigoff = ($trigger == 'file_download') ? $trigoff + 2 : $trigoff;
				$trigger = $realTrig;
				break;
			}
		}

		$ret = false;
		$smd_access_error = $smd_access_errcode = '';
		$smd_akey_salt_length = get_pref('smd_akey_salt_length', $smd_akey_prefs['smd_akey_salt_length']['default']);
		$doip = get_pref('smd_akey_log_ip', $smd_akey_prefs['smd_akey_log_ip']['default']);

		if ($trigoff !== false) {
			$tokidx = $trigoff + 1;
			$timeidx = $trigoff + 2;
			$extraidx = $trigoff + 3;

			// OK, on a trigger page, so read the token from the URL
			$tok = (isset($parts[$tokidx]) && strlen($parts[$tokidx]) == intval(32 + $smd_akey_salt_length)) ? $parts[$tokidx] : 0;