569 lines
		
	
	
	
		
			16 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			569 lines
		
	
	
	
		
			16 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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require_once('include/items.php');
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require_once('include/auth.php');
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require_once('include/dfrn.php');
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function dfrn_poll_init(App &$a) {
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	$dfrn_id         = ((x($_GET,'dfrn_id'))         ? $_GET['dfrn_id']              : '');
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	$type            = ((x($_GET,'type'))            ? $_GET['type']                 : 'data');
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	$last_update     = ((x($_GET,'last_update'))     ? $_GET['last_update']          : '');
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	$destination_url = ((x($_GET,'destination_url')) ? $_GET['destination_url']      : '');
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	$challenge       = ((x($_GET,'challenge'))       ? $_GET['challenge']            : '');
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	$sec             = ((x($_GET,'sec'))             ? $_GET['sec']                  : '');
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	$dfrn_version    = ((x($_GET,'dfrn_version'))    ? (float) $_GET['dfrn_version'] : 2.0);
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	$perm            = ((x($_GET,'perm'))            ? $_GET['perm']                 : 'r');
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	$quiet			 = ((x($_GET,'quiet'))			 ? true							 : false);
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	$direction = (-1);
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	if(strpos($dfrn_id,':') == 1) {
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		$direction = intval(substr($dfrn_id,0,1));
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		$dfrn_id   = substr($dfrn_id,2);
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	}
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	$hidewall = false;
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	if(($dfrn_id === '') && (! x($_POST,'dfrn_id'))) {
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		if((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
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			http_status_exit(403);
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		}
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		$user = '';
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		if($a->argc > 1) {
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			$r = q("SELECT `hidewall`,`nickname` FROM `user` WHERE `user`.`nickname` = '%s' LIMIT 1",
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				dbesc($a->argv[1])
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			);
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			if (!$r)
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				http_status_exit(404);
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			$hidewall = ($r[0]['hidewall'] && !local_user());
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			$user = $r[0]['nickname'];
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		}
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		logger('dfrn_poll: public feed request from ' . $_SERVER['REMOTE_ADDR'] . ' for ' . $user);
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		header("Content-type: application/atom+xml");
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		echo dfrn::feed('', $user,$last_update, 0, $hidewall);
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		killme();
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	}
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	if(($type === 'profile') && (! strlen($sec))) {
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		$sql_extra = '';
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		switch($direction) {
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			case (-1):
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				$sql_extra = sprintf(" AND ( `dfrn-id` = '%s' OR `issued-id` = '%s' ) ", dbesc($dfrn_id),dbesc($dfrn_id));
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				$my_id = $dfrn_id;
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				break;
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			case 0:
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				$sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
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				$my_id = '1:' . $dfrn_id;
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				break;
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			case 1:
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				$sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
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				$my_id = '0:' . $dfrn_id;
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				break;
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			default:
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				goaway(z_root());
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				break; // NOTREACHED
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		}
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		$r = q("SELECT `contact`.*, `user`.`username`, `user`.`nickname`
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			FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
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			WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0
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			AND `user`.`nickname` = '%s' $sql_extra LIMIT 1",
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			dbesc($a->argv[1])
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		);
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		if (dbm::is_result($r)) {
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			$s = fetch_url($r[0]['poll'] . '?dfrn_id=' . $my_id . '&type=profile-check');
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			logger("dfrn_poll: old profile returns " . $s, LOGGER_DATA);
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			if(strlen($s)) {
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				$xml = parse_xml_string($s);
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				if((int) $xml->status == 1) {
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					$_SESSION['authenticated'] = 1;
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					if(! x($_SESSION,'remote'))
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						$_SESSION['remote'] = array();
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					$_SESSION['remote'][] = array('cid' => $r[0]['id'],'uid' => $r[0]['uid'],'url' => $r[0]['url']);
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					$_SESSION['visitor_id'] = $r[0]['id'];
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					$_SESSION['visitor_home'] = $r[0]['url'];
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					$_SESSION['visitor_handle'] = $r[0]['addr'];
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					$_SESSION['visitor_visiting'] = $r[0]['uid'];
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					if(!$quiet)
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						info( sprintf(t('%1$s welcomes %2$s'), $r[0]['username'] , $r[0]['name']) . EOL);
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					// Visitors get 1 day session.
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					$session_id = session_id();
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					$expire = time() + 86400;
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					q("UPDATE `session` SET `expire` = '%s' WHERE `sid` = '%s'",
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						dbesc($expire),
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						dbesc($session_id)
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					);
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				}
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			}
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			$profile = $r[0]['nickname'];
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			goaway((strlen($destination_url)) ? $destination_url : App::get_baseurl() . '/profile/' . $profile);
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		}
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		goaway(z_root());
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	}
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	if($type === 'profile-check' && $dfrn_version < 2.2 ) {
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		if((strlen($challenge)) && (strlen($sec))) {
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			q("DELETE FROM `profile_check` WHERE `expire` < " . intval(time()));
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			$r = q("SELECT * FROM `profile_check` WHERE `sec` = '%s' ORDER BY `expire` DESC LIMIT 1",
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				dbesc($sec)
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			);
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			if (! dbm::is_result($r)) {
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				xml_status(3, 'No ticket');
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				// NOTREACHED
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			}
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			$orig_id = $r[0]['dfrn_id'];
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			if(strpos($orig_id, ':'))
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				$orig_id = substr($orig_id,2);
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			$c = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
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				intval($r[0]['cid'])
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			);
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			if (! dbm::is_result($c)) {
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				xml_status(3, 'No profile');
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			}
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			$contact = $c[0];
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			$sent_dfrn_id = hex2bin($dfrn_id);
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			$challenge    = hex2bin($challenge);
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			$final_dfrn_id = '';
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			if(($contact['duplex']) && strlen($contact['prvkey'])) {
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				openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
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				openssl_private_decrypt($challenge,$decoded_challenge,$contact['prvkey']);
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			}
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			else {
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				openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
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				openssl_public_decrypt($challenge,$decoded_challenge,$contact['pubkey']);
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			}
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			$final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
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			if(strpos($final_dfrn_id,':') == 1)
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				$final_dfrn_id = substr($final_dfrn_id,2);
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			if($final_dfrn_id != $orig_id) {
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				logger('profile_check: ' . $final_dfrn_id . ' != ' . $orig_id, LOGGER_DEBUG);
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				// did not decode properly - cannot trust this site 
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				xml_status(3, 'Bad decryption');
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			}
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			header("Content-type: text/xml");
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			echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?><dfrn_poll><status>0</status><challenge>$decoded_challenge</challenge><sec>$sec</sec></dfrn_poll>";
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			killme();
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			// NOTREACHED
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		}
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		else {
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				// old protocol
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			switch($direction) {
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				case 1:
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					$dfrn_id = '0:' . $dfrn_id;
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					break;
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				case 0:
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					$dfrn_id = '1:' . $dfrn_id;
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					break;
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				default:
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					break;
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			}
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			q("DELETE FROM `profile_check` WHERE `expire` < " . intval(time()));
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			$r = q("SELECT * FROM `profile_check` WHERE `dfrn_id` = '%s' ORDER BY `expire` DESC",
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				dbesc($dfrn_id));
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			if (dbm::is_result($r)) {
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				xml_status(1);
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				return; // NOTREACHED
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			}
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			xml_status(0);
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			return; // NOTREACHED
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		}
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	}
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}
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function dfrn_poll_post(App &$a) {
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	$dfrn_id      = ((x($_POST,'dfrn_id'))      ? $_POST['dfrn_id']              : '');
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	$challenge    = ((x($_POST,'challenge'))    ? $_POST['challenge']            : '');
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	$url          = ((x($_POST,'url'))          ? $_POST['url']                  : '');
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	$sec          = ((x($_POST,'sec'))          ? $_POST['sec']                  : '');
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	$ptype        = ((x($_POST,'type'))         ? $_POST['type']                 : '');
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	$dfrn_version = ((x($_POST,'dfrn_version')) ? (float) $_POST['dfrn_version'] : 2.0);
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	$perm         = ((x($_POST,'perm'))         ? $_POST['perm']                 : 'r');
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	if($ptype === 'profile-check') {
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		if((strlen($challenge)) && (strlen($sec))) {
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			logger('dfrn_poll: POST: profile-check');
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			q("DELETE FROM `profile_check` WHERE `expire` < " . intval(time()));
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			$r = q("SELECT * FROM `profile_check` WHERE `sec` = '%s' ORDER BY `expire` DESC LIMIT 1",
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				dbesc($sec)
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			);
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			if (! dbm::is_result($r)) {
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				xml_status(3, 'No ticket');
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				// NOTREACHED
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			}
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			$orig_id = $r[0]['dfrn_id'];
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			if(strpos($orig_id, ':'))
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				$orig_id = substr($orig_id,2);
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			$c = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
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				intval($r[0]['cid'])
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			);
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			if (! dbm::is_result($c)) {
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				xml_status(3, 'No profile');
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			}
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			$contact = $c[0];
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			$sent_dfrn_id = hex2bin($dfrn_id);
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			$challenge    = hex2bin($challenge);
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			$final_dfrn_id = '';
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			if(($contact['duplex']) && strlen($contact['prvkey'])) {
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				openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
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				openssl_private_decrypt($challenge,$decoded_challenge,$contact['prvkey']);
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			}
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			else {
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				openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
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				openssl_public_decrypt($challenge,$decoded_challenge,$contact['pubkey']);
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			}
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			$final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
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			if(strpos($final_dfrn_id,':') == 1)
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				$final_dfrn_id = substr($final_dfrn_id,2);
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			if($final_dfrn_id != $orig_id) {
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				logger('profile_check: ' . $final_dfrn_id . ' != ' . $orig_id, LOGGER_DEBUG);
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				// did not decode properly - cannot trust this site 
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				xml_status(3, 'Bad decryption');
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			}
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			header("Content-type: text/xml");
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			echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?><dfrn_poll><status>0</status><challenge>$decoded_challenge</challenge><sec>$sec</sec></dfrn_poll>";
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			killme();
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			// NOTREACHED
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		}
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	}
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	$direction    = (-1);
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	if(strpos($dfrn_id,':') == 1) {
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		$direction = intval(substr($dfrn_id,0,1));
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		$dfrn_id   = substr($dfrn_id,2);
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	}
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	$r = q("SELECT * FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
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		dbesc($dfrn_id),
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		dbesc($challenge)
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	);
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	if (! dbm::is_result($r)) {
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		killme();
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	}
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	$type = $r[0]['type'];
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	$last_update = $r[0]['last_update'];
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	$r = q("DELETE FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s'",
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		dbesc($dfrn_id),
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		dbesc($challenge)
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	);
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	$sql_extra = '';
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	switch($direction) {
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		case (-1):
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			$sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($dfrn_id));
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			$my_id = $dfrn_id;
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			break;
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		case 0:
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			$sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
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			$my_id = '1:' . $dfrn_id;
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			break;
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		case 1:
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			$sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
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			$my_id = '0:' . $dfrn_id;
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			break;
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						|
		default:
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			goaway(z_root());
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						|
			break; // NOTREACHED
 | 
						|
	}
 | 
						|
 | 
						|
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						|
	$r = q("SELECT * FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 $sql_extra LIMIT 1");
 | 
						|
 | 
						|
 | 
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	if (! dbm::is_result($r)) {
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		killme();
 | 
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	}
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						|
 | 
						|
	$contact = $r[0];
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						|
	$owner_uid = $r[0]['uid'];
 | 
						|
	$contact_id = $r[0]['id'];
 | 
						|
 | 
						|
 | 
						|
	if($type === 'reputation' && strlen($url)) {
 | 
						|
		$r = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
 | 
						|
			dbesc($url),
 | 
						|
			intval($owner_uid)
 | 
						|
		);
 | 
						|
		$reputation = 0;
 | 
						|
		$text = '';
 | 
						|
 | 
						|
		if (dbm::is_result($r)) {
 | 
						|
			$reputation = $r[0]['rating'];
 | 
						|
			$text = $r[0]['reason'];
 | 
						|
 | 
						|
			if($r[0]['id'] == $contact_id) {	// inquiring about own reputation not allowed
 | 
						|
				$reputation = 0;
 | 
						|
				$text = '';
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?>
 | 
						|
		<reputation>
 | 
						|
			<url>$url</url>
 | 
						|
			<rating>$reputation</rating>
 | 
						|
			<description>$text</description>
 | 
						|
		</reputation>
 | 
						|
		";
 | 
						|
		killme();
 | 
						|
		// NOTREACHED
 | 
						|
	}
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						|
	else {
 | 
						|
 | 
						|
		// Update the writable flag if it changed
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		logger('dfrn_poll: post request feed: ' . print_r($_POST,true),LOGGER_DATA);
 | 
						|
		if($dfrn_version >= 2.21) {
 | 
						|
			if($perm === 'rw')
 | 
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				$writable = 1;
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						|
			else
 | 
						|
				$writable = 0;
 | 
						|
 | 
						|
			if($writable !=  $contact['writable']) {
 | 
						|
				q("UPDATE `contact` SET `writable` = %d WHERE `id` = %d",
 | 
						|
					intval($writable),
 | 
						|
					intval($contact_id)
 | 
						|
				);
 | 
						|
			}
 | 
						|
		}
 | 
						|
 | 
						|
		header("Content-type: application/atom+xml");
 | 
						|
		$o = dfrn::feed($dfrn_id, $a->argv[1], $last_update, $direction);
 | 
						|
		echo $o;
 | 
						|
		killme();
 | 
						|
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
function dfrn_poll_content(App &$a) {
 | 
						|
 | 
						|
	$dfrn_id         = ((x($_GET,'dfrn_id'))         ? $_GET['dfrn_id']              : '');
 | 
						|
	$type            = ((x($_GET,'type'))            ? $_GET['type']                 : 'data');
 | 
						|
	$last_update     = ((x($_GET,'last_update'))     ? $_GET['last_update']          : '');
 | 
						|
	$destination_url = ((x($_GET,'destination_url')) ? $_GET['destination_url']      : '');
 | 
						|
	$sec             = ((x($_GET,'sec'))             ? $_GET['sec']                  : '');
 | 
						|
	$dfrn_version    = ((x($_GET,'dfrn_version'))    ? (float) $_GET['dfrn_version'] : 2.0);
 | 
						|
	$perm            = ((x($_GET,'perm'))            ? $_GET['perm']                 : 'r');
 | 
						|
	$quiet		 = ((x($_GET,'quiet'))           ? true	                         : false);
 | 
						|
 | 
						|
	$direction = (-1);
 | 
						|
	if(strpos($dfrn_id,':') == 1) {
 | 
						|
		$direction = intval(substr($dfrn_id,0,1));
 | 
						|
		$dfrn_id = substr($dfrn_id,2);
 | 
						|
	}
 | 
						|
 | 
						|
 | 
						|
	if($dfrn_id != '') {
 | 
						|
		// initial communication from external contact
 | 
						|
		$hash = random_string();
 | 
						|
 | 
						|
		$status = 0;
 | 
						|
 | 
						|
		$r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
 | 
						|
 | 
						|
		if($type !== 'profile') {
 | 
						|
			$r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` , `type`, `last_update` )
 | 
						|
				VALUES( '%s', '%s', '%s', '%s', '%s' ) ",
 | 
						|
				dbesc($hash),
 | 
						|
				dbesc($dfrn_id),
 | 
						|
				intval(time() + 60 ),
 | 
						|
				dbesc($type),
 | 
						|
				dbesc($last_update)
 | 
						|
			);
 | 
						|
		}
 | 
						|
		$sql_extra = '';
 | 
						|
		switch($direction) {
 | 
						|
			case (-1):
 | 
						|
				if($type === 'profile')
 | 
						|
					$sql_extra = sprintf(" AND ( `dfrn-id` = '%s' OR `issued-id` = '%s' ) ", dbesc($dfrn_id),dbesc($dfrn_id));
 | 
						|
				else
 | 
						|
					$sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($dfrn_id));
 | 
						|
				$my_id = $dfrn_id;
 | 
						|
				break;
 | 
						|
			case 0:
 | 
						|
				$sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
 | 
						|
				$my_id = '1:' . $dfrn_id;
 | 
						|
				break;
 | 
						|
			case 1:
 | 
						|
				$sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
 | 
						|
				$my_id = '0:' . $dfrn_id;
 | 
						|
				break;
 | 
						|
			default:
 | 
						|
				goaway(z_root());
 | 
						|
				break; // NOTREACHED
 | 
						|
		}
 | 
						|
 | 
						|
		$nickname = $a->argv[1];
 | 
						|
 | 
						|
		$r = q("SELECT `contact`.*, `user`.`username`, `user`.`nickname`
 | 
						|
			FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
 | 
						|
			WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0
 | 
						|
			AND `user`.`nickname` = '%s' $sql_extra LIMIT 1",
 | 
						|
			dbesc($nickname)
 | 
						|
		);
 | 
						|
 | 
						|
		if (dbm::is_result($r)) {
 | 
						|
 | 
						|
			$challenge = '';
 | 
						|
			$encrypted_id = '';
 | 
						|
			$id_str = $my_id . '.' . mt_rand(1000,9999);
 | 
						|
 | 
						|
			if(($r[0]['duplex'] && strlen($r[0]['pubkey'])) || (! strlen($r[0]['prvkey']))) {
 | 
						|
				openssl_public_encrypt($hash,$challenge,$r[0]['pubkey']);
 | 
						|
				openssl_public_encrypt($id_str,$encrypted_id,$r[0]['pubkey']);
 | 
						|
			}
 | 
						|
			else {
 | 
						|
				openssl_private_encrypt($hash,$challenge,$r[0]['prvkey']);
 | 
						|
				openssl_private_encrypt($id_str,$encrypted_id,$r[0]['prvkey']);
 | 
						|
			}
 | 
						|
 | 
						|
			$challenge = bin2hex($challenge);
 | 
						|
			$encrypted_id = bin2hex($encrypted_id);
 | 
						|
		}
 | 
						|
		else {
 | 
						|
			$status = 1;
 | 
						|
			$challenge = '';
 | 
						|
			$encrypted_id = '';
 | 
						|
		}
 | 
						|
 | 
						|
		if(($type === 'profile') && (strlen($sec))) {
 | 
						|
 | 
						|
			// URL reply
 | 
						|
 | 
						|
			if($dfrn_version < 2.2) {
 | 
						|
				$s = fetch_url($r[0]['poll']
 | 
						|
					. '?dfrn_id=' . $encrypted_id
 | 
						|
					. '&type=profile-check'
 | 
						|
					. '&dfrn_version=' . DFRN_PROTOCOL_VERSION
 | 
						|
					. '&challenge=' . $challenge
 | 
						|
					. '&sec=' . $sec
 | 
						|
				);
 | 
						|
			}
 | 
						|
			else {
 | 
						|
				$s = post_url($r[0]['poll'], array(
 | 
						|
					'dfrn_id' => $encrypted_id,
 | 
						|
					'type' => 'profile-check',
 | 
						|
					'dfrn_version' => DFRN_PROTOCOL_VERSION,
 | 
						|
					'challenge' => $challenge,
 | 
						|
					'sec' => $sec
 | 
						|
				));
 | 
						|
			}
 | 
						|
 | 
						|
			$profile = ((dbm::is_result($r) && $r[0]['nickname']) ? $r[0]['nickname'] : $nickname);
 | 
						|
 | 
						|
			switch($destination_url) {
 | 
						|
				case 'profile':
 | 
						|
					$dest = App::get_baseurl() . '/profile/' . $profile . '?f=&tab=profile';
 | 
						|
					break;
 | 
						|
				case 'photos':
 | 
						|
					$dest = App::get_baseurl() . '/photos/' . $profile;
 | 
						|
					break;
 | 
						|
				case 'status':
 | 
						|
				case '':
 | 
						|
					$dest = App::get_baseurl() . '/profile/' . $profile;
 | 
						|
					break;
 | 
						|
				default:
 | 
						|
					$dest = $destination_url . '?f=&redir=1';
 | 
						|
					break;
 | 
						|
			}
 | 
						|
 | 
						|
			logger("dfrn_poll: sec profile: " . $s, LOGGER_DATA);
 | 
						|
 | 
						|
			if(strlen($s) && strstr($s,'<?xml')) {
 | 
						|
 | 
						|
				$xml = parse_xml_string($s);
 | 
						|
 | 
						|
				logger('dfrn_poll: profile: parsed xml: ' . print_r($xml,true), LOGGER_DATA);
 | 
						|
 | 
						|
				logger('dfrn_poll: secure profile: challenge: ' . $xml->challenge . ' expecting ' . $hash);
 | 
						|
				logger('dfrn_poll: secure profile: sec: ' . $xml->sec . ' expecting ' . $sec);
 | 
						|
 | 
						|
 | 
						|
				if(((int) $xml->status == 0) && ($xml->challenge == $hash)  && ($xml->sec == $sec)) {
 | 
						|
					$_SESSION['authenticated'] = 1;
 | 
						|
					if(! x($_SESSION,'remote'))
 | 
						|
						$_SESSION['remote'] = array();
 | 
						|
					$_SESSION['remote'][] = array('cid' => $r[0]['id'],'uid' => $r[0]['uid'],'url' => $r[0]['url']);
 | 
						|
					$_SESSION['visitor_id'] = $r[0]['id'];
 | 
						|
					$_SESSION['visitor_home'] = $r[0]['url'];
 | 
						|
					$_SESSION['visitor_visiting'] = $r[0]['uid'];
 | 
						|
					if(!$quiet)
 | 
						|
						info( sprintf(t('%1$s welcomes %2$s'), $r[0]['username'] , $r[0]['name']) . EOL);
 | 
						|
					// Visitors get 1 day session.
 | 
						|
					$session_id = session_id();
 | 
						|
					$expire = time() + 86400;
 | 
						|
					q("UPDATE `session` SET `expire` = '%s' WHERE `sid` = '%s'",
 | 
						|
						dbesc($expire),
 | 
						|
						dbesc($session_id)
 | 
						|
					);
 | 
						|
				}
 | 
						|
 | 
						|
				goaway($dest);
 | 
						|
			}
 | 
						|
			goaway($dest);
 | 
						|
			// NOTREACHED
 | 
						|
 | 
						|
		}
 | 
						|
		else {
 | 
						|
			// XML reply
 | 
						|
			header("Content-type: text/xml");
 | 
						|
			echo '<?xml version="1.0" encoding="UTF-8"?>' . "\r\n"
 | 
						|
				. '<dfrn_poll>' . "\r\n"
 | 
						|
				. "\t" . '<status>' . $status . '</status>' . "\r\n"
 | 
						|
				. "\t" . '<dfrn_version>' . DFRN_PROTOCOL_VERSION . '</dfrn_version>' . "\r\n"
 | 
						|
				. "\t" . '<dfrn_id>' . $encrypted_id . '</dfrn_id>' . "\r\n"
 | 
						|
				. "\t" . '<challenge>' . $challenge . '</challenge>' . "\r\n"
 | 
						|
				. '</dfrn_poll>' . "\r\n" ;
 | 
						|
			killme();
 | 
						|
			// NOTREACHED
 | 
						|
		}
 | 
						|
	}
 | 
						|
}
 |