X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=mod%2Fdfrn_poll.php;h=8a573c9565ddeef689e89e6f0264fecf1a07023f;hb=4f8445760c7a9cc89eed4f7cbb3eccb605ecabbe;hp=da60eb62921bb9cd99a4554d46a91a7717ff0628;hpb=f5826105bfc514599b2c5b6692bca14ca4bc5d78;p=friendica.git

diff --git a/mod/dfrn_poll.php b/mod/dfrn_poll.php
index da60eb6292..8a573c9565 100644
--- a/mod/dfrn_poll.php
+++ b/mod/dfrn_poll.php
@@ -1,58 +1,311 @@
 <?php
 
+require_once('include/items.php');
+require_once('include/auth.php');
+
 
 function dfrn_poll_init(&$a) {
 
-	if(x($_GET,'dfrn_id'))
-		$dfrn_id = $a->config['dfrn_poll_dfrn_id'] = $_GET['dfrn_id'];
-	if(x($_GET,'type'))
-		$type = $a->config['dfrn_poll_type'] = $_GET['type'];
-	if(x($_GET,'last_update'))
-		$last_update = $a->config['dfrn_poll_last_update'] = $_GET['last_update'];
+	$dfrn_id         = ((x($_GET,'dfrn_id'))         ? $_GET['dfrn_id']              : '');
+	$type            = ((x($_GET,'type'))            ? $_GET['type']                 : '');
+	$last_update     = ((x($_GET,'last_update'))     ? $_GET['last_update']          : '');
+	$destination_url = ((x($_GET,'destination_url')) ? $_GET['destination_url']      : '');
+	$dfrn_version    = ((x($_GET,'dfrn_version'))    ? (float) $_GET['dfrn_version'] : 0);
 
 
+	$direction = (-1);
 
-	if(! x($dfrn_id))
-		return;
 
+	if(strpos($dfrn_id,':') == 1) {
+		$direction = intval(substr($dfrn_id,0,1));
+		$dfrn_id   = substr($dfrn_id,2);
+	}
 
-	if((x($type)) && ($type == 'profile')) {
+	if(($dfrn_id === '') && (! x($_POST,'dfrn_id')) && ($a->argc > 1)) {
+		header("Content-type: application/atom+xml");
+		$o = get_feed_for($a, '*', $a->argv[1],$last_update);
+		echo $o;
+		killme();
+	}
+
+	if((isset($type)) && ($type === 'profile')) {
+
+		$sql_extra = '';
+		switch($direction) {
+			case (-1):
+				$sql_extra = sprintf(" AND ( `dfrn-id` = '%s' OR `issued-id` = '%s' ) ", dbesc($dfrn_id),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:' . $dfrn_id;
+				break;
+			default:
+				goaway($a->get_baseurl());
+				break; // NOTREACHED
+		}
 
 		$r = q("SELECT `contact`.*, `user`.`nickname` 
 			FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
-			WHERE `issued-id` = '%s' LIMIT 1",
-			dbesc($dfrn_id));
+			WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0 
+			AND `user`.`nickname` = '%s' $sql_extra LIMIT 1",
+			dbesc($a->argv[1])
+		);
+		
 		if(count($r)) {
-			$s = fetch_url($r[0]['poll'] . '?dfrn_id=' . $dfrn_id . '&type=profile-check');
+
+			$s = fetch_url($r[0]['poll'] . '?dfrn_id=' . $my_id . '&type=profile-check');
+
 			if(strlen($s)) {
+
 				$xml = simplexml_load_string($s);
+
 				if((int) $xml->status == 1) {
 					$_SESSION['authenticated'] = 1;
 					$_SESSION['visitor_id'] = $r[0]['id'];
-					$_SESSION['sysmsg'] .= "Hi {$r[0]['name']}" . EOL;
+					notice( t('Hi ') . $r[0]['name'] . EOL);
 					// Visitors get 1 day session.
 					$session_id = session_id();
 					$expire = time() + 86400;
 					q("UPDATE `session` SET `expire` = '%s' WHERE `sid` = '%s' LIMIT 1",
 						dbesc($expire),
-						dbesc($session_id)); 
+						dbesc($session_id)
+					); 
 				}
 			}
-			$profile = ((strlen($r[0]['nickname'])) ? $r[0]['nickname'] : $r[0]['uid']);
-			goaway($a->get_baseurl() . "/profile/$profile");
+			$profile = $r[0]['nickname'];
+			goaway((strlen($destination_url)) ? $destination_url : $a->get_baseurl() . '/profile/' . $profile);
 		}
 		goaway($a->get_baseurl());
+
 	}
 
-	if((x($type)) && ($type == 'profile-check')) {
+	if((isset($type)) && ($type === 'profile-check')) {
 
+		switch($direction) {
+			case 1:
+				$dfrn_id = '0:' . $dfrn_id;
+				break;
+			case 0:
+				$dfrn_id = '1:' . $dfrn_id;
+				break;
+			default:
+				break;
+		}
 		q("DELETE FROM `profile_check` WHERE `expire` < " . intval(time()));
 		$r = q("SELECT * FROM `profile_check` WHERE `dfrn_id` = '%s' ORDER BY `expire` DESC",
 			dbesc($dfrn_id));
-		if(count($r))
+		if(count($r)) {
 			xml_status(1);
+			return; // NOTREACHED
+		}
 		xml_status(0);
 		return; // NOTREACHED
 	}
 
+
+}
+
+
+
+function dfrn_poll_post(&$a) {
+
+	$dfrn_id      = ((x($_POST,'dfrn_id'))      ? $_POST['dfrn_id']              : '');
+	$challenge    = ((x($_POST,'challenge'))    ? $_POST['challenge']            : '');
+	$url          = ((x($_POST,'url'))          ? $_POST['url']                  : '');
+	$dfrn_version = ((x($_POST,'dfrn_version')) ? (float) $_POST['dfrn_version'] : 0);
+
+	$direction    = (-1);
+	if(strpos($dfrn_id,':') == 1) {
+		$direction = intval(substr($dfrn_id,0,1));
+		$dfrn_id   = substr($dfrn_id,2);
+	}
+
+
+	$r = q("SELECT * FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
+		dbesc($dfrn_id),
+		dbesc($challenge)
+	);
+
+	if(! count($r))
+		killme();
+
+	$type = $r[0]['type'];
+	$last_update = $r[0]['last_update'];
+
+	$r = q("DELETE FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
+		dbesc($dfrn_id),
+		dbesc($challenge)
+	);
+
+
+	$sql_extra = '';
+	switch($direction) {
+		case (-1):
+			$sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($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:' . $dfrn_id;
+			break;
+		default:
+			goaway($a->get_baseurl());
+			break; // NOTREACHED
+	}
+
+
+	$r = q("SELECT * FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 $sql_extra LIMIT 1");
+
+
+	if(! count($r))
+		killme();
+
+	$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;
+		$text = '';
+
+		if(count($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
+	}
+	else {
+		header("Content-type: application/atom+xml");
+		$o = get_feed_for($a,$dfrn_id, $a->argv[1], $last_update, $direction);
+		echo $o;
+		killme();
+
+	}
 }
+
+function dfrn_poll_content(&$a) {
+
+
+	$dfrn_id = '';
+	$type = 'data';
+
+	if(x($_GET,'dfrn_id'))
+		$dfrn_id = $_GET['dfrn_id'];
+	if(x($_GET,'type'))
+		$type = $_GET['type'];
+	if(x($_GET,'last_update'))
+		$last_update = $_GET['last_update'];
+
+	$dfrn_version = (float) $_GET['dfrn_version'];
+
+	$direction = (-1);
+	if(strpos($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()));
+
+		$r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` , `type`, `last_update` )
+			VALUES( '%s', '%s', '%s', '%s', '%s' ) ",
+			dbesc($hash),
+			dbesc($dfrn_id),
+			intval(time() + 60 ),
+			dbesc($type),
+			dbesc($last_update)
+		);
+
+
+		$sql_extra = '';
+		switch($direction) {
+			case (-1):
+				$sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($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:' . $dfrn_id;
+				break;
+			default:
+				goaway($a->get_baseurl());
+				break; // NOTREACHED
+		}
+
+
+
+
+		$r = q("SELECT * FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 $sql_extra LIMIT 1");
+
+		if(count($r)) {
+
+			$challenge = '';
+			$encrypted_id = '';
+			$id_str = $my_id . '.' . mt_rand(1000,9999);
+
+
+			if($r[0]['duplex'] && strlen($r[0]['pubkey'])) {
+				openssl_public_encrypt($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 {
+			$status = 1;
+		}
+		header("Content-type: text/xml");
+		echo '<?xml version="1.0" encoding="UTF-8"?>' . "\r\n"
+			. '<dfrn_poll>' . "\r\n"
+			. "\t" . '<status>' .$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();
+	}
+}
+
+