X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FModel%2FAPContact.php;h=5e992075e8d3c8999dcb1f22b67fadf2f30fa8e6;hb=2e05dac7dae0a3d028b442a2d5afbd4176a32e99;hp=634ce441a2b2c69925f55257b684bebbb7d979f8;hpb=d94a6843f29603e81db35810d2ab35e1b529d63a;p=friendica.git

diff --git a/src/Model/APContact.php b/src/Model/APContact.php
index 634ce441a2..5e992075e8 100644
--- a/src/Model/APContact.php
+++ b/src/Model/APContact.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * @copyright Copyright (C) 2020, Friendica
+ * @copyright Copyright (C) 2010-2021, the Friendica project
  *
  * @license GNU AGPL version 3 or any later version
  *
@@ -22,15 +22,23 @@
 namespace Friendica\Model;
 
 use Friendica\Content\Text\HTML;
+use Friendica\Core\Cache\Enum\Duration;
 use Friendica\Core\Logger;
+use Friendica\Core\System;
 use Friendica\Database\DBA;
+use Friendica\Database\DBStructure;
+use Friendica\DI;
+use Friendica\Network\HTTPException;
 use Friendica\Network\Probe;
 use Friendica\Protocol\ActivityNamespace;
 use Friendica\Protocol\ActivityPub;
+use Friendica\Protocol\ActivityPub\Transmitter;
 use Friendica\Util\Crypto;
 use Friendica\Util\DateTimeFormat;
+use Friendica\Util\HTTPSignature;
 use Friendica\Util\JsonLD;
 use Friendica\Util\Network;
+use Friendica\Util\Strings;
 
 class APContact
 {
@@ -40,13 +48,27 @@ class APContact
 	 * @param string $addr Address
 	 * @return array webfinger data
 	 */
-	public static function fetchWebfingerData(string $addr)
+	private static function fetchWebfingerData(string $addr)
 	{
 		$addr_parts = explode('@', $addr);
 		if (count($addr_parts) != 2) {
 			return [];
 		}
 
+		if (Contact::isLocal($addr) && ($local_uid = User::getIdForURL($addr)) && ($local_owner = User::getOwnerDataById($local_uid))) {
+			$data = [
+				'addr'      => $local_owner['addr'],
+				'baseurl'   => $local_owner['baseurl'],
+				'url'       => $local_owner['url'],
+				'subscribe' => $local_owner['baseurl'] . '/follow?url={uri}'];
+
+			if (!empty($local_owner['alias']) && ($local_owner['url'] != $local_owner['alias'])) {
+				$data['alias'] = $local_owner['alias'];
+			}
+
+			return $data;
+		}
+
 		$data = ['addr' => $addr];
 		$template = 'https://' . $addr_parts[1] . '/.well-known/webfinger?resource=acct:' . urlencode($addr);
 		$webfinger = Probe::webfinger(str_replace('{uri}', urlencode($addr), $template), 'application/jrd+json');
@@ -97,7 +119,8 @@ class APContact
 	 */
 	public static function getByURL($url, $update = null)
 	{
-		if (empty($url)) {
+		if (empty($url) || Network::isUrlBlocked($url)) {
+			Logger::info('Domain is blocked', ['url' => $url]);
 			return [];
 		}
 
@@ -119,7 +142,7 @@ class APContact
 				$apcontact = DBA::selectFirst('apcontact', [], ['addr' => $url]);
 			}
 
-			if (DBA::isResult($apcontact) && ($apcontact['updated'] > $ref_update) && !empty($apcontact['pubkey'])) {
+			if (DBA::isResult($apcontact) && ($apcontact['updated'] > $ref_update) && !empty($apcontact['pubkey']) && !empty($apcontact['uri-id'])) {
 				return $apcontact;
 			}
 
@@ -143,13 +166,51 @@ class APContact
 			$url = $apcontact['url'];
 		}
 
-		$data = ActivityPub::fetchContent($url);
+		// Detect multiple fast repeating request to the same address
+		// See https://github.com/friendica/friendica/issues/9303
+		$cachekey = 'apcontact:getByURL:' . $url;
+		$result = DI::cache()->get($cachekey);
+		if (!is_null($result)) {
+			Logger::notice('Multiple requests for the address', ['url' => $url, 'update' => $update, 'callstack' => System::callstack(20), 'result' => $result]);
+			if (!empty($fetched_contact)) {
+				return $fetched_contact;
+			}
+		} else {
+			DI::cache()->set($cachekey, System::callstack(20), Duration::FIVE_MINUTES);
+		}
+
+		if (Network::isLocalLink($url) && ($local_uid = User::getIdForURL($url))) {
+			try {
+				$data = Transmitter::getProfile($local_uid);
+				$local_owner = User::getOwnerDataById($local_uid);
+			} catch(HTTPException\NotFoundException $e) {
+				$data = null;
+			}
+		}
+
 		if (empty($data)) {
-			return $fetched_contact;
+			$local_owner = [];
+
+			$curlResult = HTTPSignature::fetchRaw($url);
+			$failed = empty($curlResult) || empty($curlResult->getBody()) ||
+				(!$curlResult->isSuccess() && ($curlResult->getReturnCode() != 410));
+
+			if (!$failed) {
+				$data = json_decode($curlResult->getBody(), true);
+				$failed = empty($data) || !is_array($data);
+			}
+
+			if (!$failed && ($curlResult->getReturnCode() == 410)) {
+				$data = ['@context' => ActivityPub::CONTEXT, 'id' => $url, 'type' => 'Tombstone'];
+			}
+
+			if ($failed) {
+				self::markForArchival($fetched_contact ?: []);
+				return $fetched_contact;
+			}
 		}
 
 		$compacted = JsonLD::compact($data);
-
 		if (empty($compacted['@id'])) {
 			return $fetched_contact;
 		}
@@ -179,11 +240,28 @@ class APContact
 
 		$apcontact['about'] = HTML::toBBCode(JsonLD::fetchElement($compacted, 'as:summary', '@value'));
 
+		$ims = JsonLD::fetchElementArray($compacted, 'vcard:hasInstantMessage');
+		if (!empty($ims)) {
+			foreach ($ims as $link) {
+				if (substr($link, 0, 5) == 'xmpp:') {
+					$apcontact['xmpp'] = substr($link, 5);
+				}
+				if (substr($link, 0, 7) == 'matrix:') {
+					$apcontact['matrix'] = substr($link, 7);
+				}
+			}
+		}
+
 		$apcontact['photo'] = JsonLD::fetchElement($compacted, 'as:icon', '@id');
 		if (is_array($apcontact['photo']) || !empty($compacted['as:icon']['as:url']['@id'])) {
 			$apcontact['photo'] = JsonLD::fetchElement($compacted['as:icon'], 'as:url', '@id');
 		}
 
+		$apcontact['header'] = JsonLD::fetchElement($compacted, 'as:image', '@id');
+		if (is_array($apcontact['header']) || !empty($compacted['as:image']['as:url']['@id'])) {
+			$apcontact['header'] = JsonLD::fetchElement($compacted['as:image'], 'as:url', '@id');
+		}
+
 		if (empty($apcontact['alias'])) {
 			$apcontact['alias'] = JsonLD::fetchElement($compacted, 'as:url', '@id');
 			if (is_array($apcontact['alias'])) {
@@ -192,8 +270,11 @@ class APContact
 		}
 
 		// Quit if none of the basic values are set
-		if (empty($apcontact['url']) || empty($apcontact['inbox']) || empty($apcontact['type'])) {
+		if (empty($apcontact['url']) || empty($apcontact['type']) || (($apcontact['type'] != 'Tombstone') && empty($apcontact['inbox']))) {
 			return $fetched_contact;
+		} elseif ($apcontact['type'] == 'Tombstone') {
+			// The "inbox" field must have a content
+			$apcontact['inbox'] = '';
 		}
 
 		// Quit if this doesn't seem to be an account at all
@@ -206,7 +287,7 @@ class APContact
 		unset($parts['path']);
 
 		if (empty($apcontact['addr'])) {
-			if (!empty($apcontact['nick'])) {
+			if (!empty($apcontact['nick']) && is_array($parts)) {
 				$apcontact['addr'] = $apcontact['nick'] . '@' . str_replace('//', '', Network::unparseURL($parts));
 			} else {
 				$apcontact['addr'] = '';
@@ -229,32 +310,55 @@ class APContact
 		}
 
 		if (!empty($apcontact['following'])) {
-			$data = ActivityPub::fetchContent($apcontact['following']);
-			if (!empty($data)) {
-				if (!empty($data['totalItems'])) {
-					$apcontact['following_count'] = $data['totalItems'];
+			if (!empty($local_owner)) {
+				$following = ActivityPub\Transmitter::getContacts($local_owner, [Contact::SHARING, Contact::FRIEND], 'following');
+			} else {
+				$following = ActivityPub::fetchContent($apcontact['following']);
+			}
+			if (!empty($following['totalItems'])) {
+				// Mastodon seriously allows for this condition?
+				// Jul 14 2021 - See https://mastodon.social/@BLUW for a negative following count
+				if ($following['totalItems'] < 0) {
+					$following['totalItems'] = 0;
 				}
+				$apcontact['following_count'] = $following['totalItems'];
 			}
 		}
 
 		if (!empty($apcontact['followers'])) {
-			$data = ActivityPub::fetchContent($apcontact['followers']);
-			if (!empty($data)) {
-				if (!empty($data['totalItems'])) {
-					$apcontact['followers_count'] = $data['totalItems'];
+			if (!empty($local_owner)) {
+				$followers = ActivityPub\Transmitter::getContacts($local_owner, [Contact::FOLLOWER, Contact::FRIEND], 'followers');
+			} else {
+				$followers = ActivityPub::fetchContent($apcontact['followers']);
+			}
+			if (!empty($followers['totalItems'])) {
+				// Mastodon seriously allows for this condition?
+				// Jul 14 2021 - See https://mastodon.online/@goes11 for a negative followers count
+				if ($followers['totalItems'] < 0) {
+					$followers['totalItems'] = 0;
 				}
+				$apcontact['followers_count'] = $followers['totalItems'];
 			}
 		}
 
 		if (!empty($apcontact['outbox'])) {
-			$data = ActivityPub::fetchContent($apcontact['outbox']);
-			if (!empty($data)) {
-				if (!empty($data['totalItems'])) {
-					$apcontact['statuses_count'] = $data['totalItems'];
+			if (!empty($local_owner)) {
+				$outbox = ActivityPub\Transmitter::getOutbox($local_owner);
+			} else {
+				$outbox = ActivityPub::fetchContent($apcontact['outbox']);
+			}
+			if (!empty($outbox['totalItems'])) {
+				// Mastodon seriously allows for this condition?
+				// Jul 20 2021 - See https://chaos.social/@m11 for a negative posts count
+				if ($outbox['totalItems'] < 0) {
+					$outbox['totalItems'] = 0;
 				}
+				$apcontact['statuses_count'] = $outbox['totalItems'];
 			}
 		}
 
+		$apcontact['discoverable'] = JsonLD::fetchElement($compacted, 'toot:discoverable', '@value');
+
 		// To-Do
 
 		// Unhandled
@@ -304,7 +408,7 @@ class APContact
 
 		if (empty($apcontact['subscribe'])) {
 			$apcontact['subscribe'] = null;
-		}		
+		}
 
 		if (!empty($apcontact['baseurl']) && empty($fetched_contact['gsid'])) {
 			$apcontact['gsid'] = GServer::getID($apcontact['baseurl']);
@@ -318,24 +422,82 @@ class APContact
 			$apcontact['alias'] = null;
 		}
 
-		$apcontact['updated'] = DateTimeFormat::utcNow();
+		if (empty($apcontact['uuid'])) {
+			$apcontact['uri-id'] = ItemURI::getIdByURI($apcontact['url']);
+		} else {
+			$apcontact['uri-id'] = ItemURI::insert(['uri' => $apcontact['url'], 'guid' => $apcontact['uuid']]);
+		}
 
-		DBA::update('apcontact', $apcontact, ['url' => $url], true);
+		$apcontact['updated'] = DateTimeFormat::utcNow();
 
 		// We delete the old entry when the URL is changed
-		if (($url != $apcontact['url']) && DBA::exists('apcontact', ['url' => $url]) && DBA::exists('apcontact', ['url' => $apcontact['url']])) {
+		if ($url != $apcontact['url']) {
+			Logger::info('Delete changed profile url', ['old' => $url, 'new' => $apcontact['url']]);
 			DBA::delete('apcontact', ['url' => $url]);
 		}
 
+		// Limit the length on incoming fields
+		$apcontact = DBStructure::getFieldsForTable('apcontact', $apcontact);
+
+		if (DBA::exists('apcontact', ['url' => $apcontact['url']])) {
+			DBA::update('apcontact', $apcontact, ['url' => $apcontact['url']]);
+		} else {
+			DBA::replace('apcontact', $apcontact);
+		}
+
 		Logger::info('Updated profile', ['url' => $url]);
 
-		return $apcontact;
+		return DBA::selectFirst('apcontact', [], ['url' => $apcontact['url']]) ?: [];
+	}
+
+	/**
+	 * Mark the given AP Contact as "to archive"
+	 *
+	 * @param array $apcontact
+	 * @return void
+	 */
+	public static function markForArchival(array $apcontact)
+	{
+		if (!empty($apcontact['inbox'])) {
+			Logger::info('Set inbox status to failure', ['inbox' => $apcontact['inbox']]);
+			HTTPSignature::setInboxStatus($apcontact['inbox'], false);
+		}
+
+		if (!empty($apcontact['sharedinbox'])) {
+			// Check if there are any available inboxes
+			$available = DBA::exists('apcontact', ["`sharedinbox` = ? AnD `inbox` IN (SELECT `url` FROM `inbox-status` WHERE `success` > `failure`)",
+				$apcontact['sharedinbox']]);
+			if (!$available) {
+				// If all known personal inboxes are failing then set their shared inbox to failure as well
+				Logger::info('Set shared inbox status to failure', ['sharedinbox' => $apcontact['sharedinbox']]);
+				HTTPSignature::setInboxStatus($apcontact['sharedinbox'], false, true);
+			}
+		}
+	}
+
+	/**
+	 * Unmark the given AP Contact as "to archive"
+	 *
+	 * @param array $apcontact
+	 * @return void
+	 */
+	public static function unmarkForArchival(array $apcontact)
+	{
+		if (!empty($apcontact['inbox'])) {
+			Logger::info('Set inbox status to success', ['inbox' => $apcontact['inbox']]);
+			HTTPSignature::setInboxStatus($apcontact['inbox'], true);
+		}
+		if (!empty($apcontact['sharedinbox'])) {
+			Logger::info('Set shared inbox status to success', ['sharedinbox' => $apcontact['sharedinbox']]);
+			HTTPSignature::setInboxStatus($apcontact['sharedinbox'], true, true);
+		}
 	}
 
 	/**
 	 * Unarchive inboxes
 	 *
-	 * @param string $url inbox url
+	 * @param string  $url    inbox url
+	 * @param boolean $shared Shared Inbox
 	 */
 	private static function unarchiveInbox($url, $shared)
 	{
@@ -343,15 +505,6 @@ class APContact
 			return;
 		}
 
-		$now = DateTimeFormat::utcNow();
-
-		$fields = ['archive' => false, 'success' => $now, 'shared' => $shared];
-
-		if (!DBA::exists('inbox-status', ['url' => $url])) {
-			$fields = array_merge($fields, ['url' => $url, 'created' => $now]);
-			DBA::replace('inbox-status', $fields);
-		} else {
-			DBA::update('inbox-status', $fields, ['url' => $url]);
-		}
+		HTTPSignature::setInboxStatus($url, true, $shared);
 	}
 }