X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;ds=sidebyside;f=src%2FModel%2FAPContact.php;h=56832cba6fb179bb2ad9f383f7248761b5ba01b1;hb=e4e9a20ac8a8a7896c3d2e4136237d399c664dd6;hp=c308da3889cec771e62cb66516a45d3c3fafc350;hpb=fb63274aafa176ee2eff964e809306719e80c847;p=friendica.git

diff --git a/src/Model/APContact.php b/src/Model/APContact.php
index c308da3889..56832cba6f 100644
--- a/src/Model/APContact.php
+++ b/src/Model/APContact.php
@@ -1,61 +1,93 @@
 <?php
-
 /**
- * @file src/Model/APContact.php
+ * @copyright Copyright (C) 2020, Friendica
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
  */
 
 namespace Friendica\Model;
 
-use Friendica\BaseObject;
 use Friendica\Content\Text\HTML;
+use Friendica\Core\Cache\Duration;
 use Friendica\Core\Logger;
+use Friendica\Core\System;
 use Friendica\Database\DBA;
+use Friendica\DI;
+use Friendica\Network\Probe;
+use Friendica\Protocol\ActivityNamespace;
 use Friendica\Protocol\ActivityPub;
-use Friendica\Util\Network;
-use Friendica\Util\JsonLD;
+use Friendica\Util\Crypto;
 use Friendica\Util\DateTimeFormat;
-use Friendica\Util\Strings;
+use Friendica\Util\HTTPSignature;
+use Friendica\Util\JsonLD;
+use Friendica\Util\Network;
 
-class APContact extends BaseObject
+class APContact
 {
 	/**
-	 * Resolves the profile url from the address by using webfinger
+	 * Fetch webfinger data
 	 *
-	 * @param string $addr profile address (user@domain.tld)
-	 * @return string url
-	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+	 * @param string $addr Address
+	 * @return array webfinger data
 	 */
-	private static function addrToUrl($addr)
+	private static function fetchWebfingerData(string $addr)
 	{
 		$addr_parts = explode('@', $addr);
 		if (count($addr_parts) != 2) {
-			return false;
+			return [];
 		}
 
-		$webfinger = 'https://' . $addr_parts[1] . '/.well-known/webfinger?resource=acct:' . urlencode($addr);
-
-		$curlResult = Network::curl($webfinger, false, ['accept_content' => 'application/jrd+json,application/json']);
-		if (!$curlResult->isSuccess() || empty($curlResult->getBody())) {
-			return false;
+		$data = ['addr' => $addr];
+		$template = 'https://' . $addr_parts[1] . '/.well-known/webfinger?resource=acct:' . urlencode($addr);
+		$webfinger = Probe::webfinger(str_replace('{uri}', urlencode($addr), $template), 'application/jrd+json');
+		if (empty($webfinger['links'])) {
+			$template = 'http://' . $addr_parts[1] . '/.well-known/webfinger?resource=acct:' . urlencode($addr);
+			$webfinger = Probe::webfinger(str_replace('{uri}', urlencode($addr), $template), 'application/jrd+json');
+			if (empty($webfinger['links'])) {
+				return [];
+			}
+			$data['baseurl'] = 'http://' . $addr_parts[1];
+		} else {
+			$data['baseurl'] = 'https://' . $addr_parts[1];
 		}
 
-		$data = json_decode($curlResult->getBody(), true);
+		foreach ($webfinger['links'] as $link) {
+			if (empty($link['rel'])) {
+				continue;
+			}
 
-		if (empty($data['links'])) {
-			return false;
-		}
+			if (!empty($link['template']) && ($link['rel'] == ActivityNamespace::OSTATUSSUB)) {
+				$data['subscribe'] = $link['template'];
+			}
 
-		foreach ($data['links'] as $link) {
-			if (empty($link['href']) || empty($link['rel']) || empty($link['type'])) {
-				continue;
+			if (!empty($link['href']) && !empty($link['type']) && ($link['rel'] == 'self') && ($link['type'] == 'application/activity+json')) {
+				$data['url'] = $link['href'];
 			}
 
-			if (($link['rel'] == 'self') && ($link['type'] == 'application/activity+json')) {
-				return $link['href'];
+			if (!empty($link['href']) && !empty($link['type']) && ($link['rel'] == 'http://webfinger.net/rel/profile-page') && ($link['type'] == 'text/html')) {
+				$data['alias'] = $link['href'];
 			}
 		}
 
-		return false;
+		if (!empty($data['url']) && !empty($data['alias']) && ($data['url'] == $data['alias'])) {
+			unset($data['alias']);
+		}
+
+		return $data;
 	}
 
 	/**
@@ -70,9 +102,11 @@ class APContact extends BaseObject
 	public static function getByURL($url, $update = null)
 	{
 		if (empty($url)) {
-			return false;
+			return [];
 		}
 
+		$fetched_contact = false;
+
 		if (empty($update)) {
 			if (is_null($update)) {
 				$ref_update = DateTimeFormat::utc('now - 1 month');
@@ -94,29 +128,47 @@ class APContact extends BaseObject
 			}
 
 			if (!is_null($update)) {
-				return DBA::isResult($apcontact) ? $apcontact : false;
+				return DBA::isResult($apcontact) ? $apcontact : [];
+			}
+
+			if (DBA::isResult($apcontact)) {
+				$fetched_contact = $apcontact;
 			}
 		}
 
-		if (empty(parse_url($url, PHP_URL_SCHEME))) {
-			$url = self::addrToUrl($url);
-			if (empty($url)) {
-				return false;
+		$apcontact = [];
+
+		$webfinger = empty(parse_url($url, PHP_URL_SCHEME));
+		if ($webfinger) {
+			$apcontact = self::fetchWebfingerData($url);
+			if (empty($apcontact['url'])) {
+				return $fetched_contact;
 			}
+			$url = $apcontact['url'];
 		}
 
 		$data = ActivityPub::fetchContent($url);
 		if (empty($data)) {
-			return false;
+			self::markForArchival($fetched_contact ?: []);
+			return $fetched_contact;
 		}
 
 		$compacted = JsonLD::compact($data);
 
 		if (empty($compacted['@id'])) {
-			return false;
+			return $fetched_contact;
+		}
+
+		// 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' => $result]);
+		} else {
+			DI::cache()->set($cachekey, System::callstack(20), Duration::FIVE_MINUTES);
 		}
 
-		$apcontact = [];
 		$apcontact['url'] = $compacted['@id'];
 		$apcontact['uuid'] = JsonLD::fetchElement($compacted, 'diaspora:guid', '@value');
 		$apcontact['type'] = str_replace('as:', '', JsonLD::fetchElement($compacted, '@type'));
@@ -133,7 +185,7 @@ class APContact extends BaseObject
 			self::unarchiveInbox($apcontact['sharedinbox'], true);
 		}
 
-		$apcontact['nick'] = JsonLD::fetchElement($compacted, 'as:preferredUsername', '@value');
+		$apcontact['nick'] = JsonLD::fetchElement($compacted, 'as:preferredUsername', '@value') ?? '';
 		$apcontact['name'] = JsonLD::fetchElement($compacted, 'as:name', '@value');
 
 		if (empty($apcontact['name'])) {
@@ -147,28 +199,41 @@ class APContact extends BaseObject
 			$apcontact['photo'] = JsonLD::fetchElement($compacted['as:icon'], 'as:url', '@id');
 		}
 
-		$apcontact['alias'] = JsonLD::fetchElement($compacted, 'as:url', '@id');
-		if (is_array($apcontact['alias'])) {
-			$apcontact['alias'] = JsonLD::fetchElement($compacted['as:url'], 'as:href', '@id');
+		if (empty($apcontact['alias'])) {
+			$apcontact['alias'] = JsonLD::fetchElement($compacted, 'as:url', '@id');
+			if (is_array($apcontact['alias'])) {
+				$apcontact['alias'] = JsonLD::fetchElement($compacted['as:url'], 'as:href', '@id');
+			}
 		}
 
 		// Quit if none of the basic values are set
 		if (empty($apcontact['url']) || empty($apcontact['inbox']) || empty($apcontact['type'])) {
-			return false;
+			return $fetched_contact;
 		}
 
 		// Quit if this doesn't seem to be an account at all
 		if (!in_array($apcontact['type'], ActivityPub::ACCOUNT_TYPES)) {
-			return false;
+			return $fetched_contact;
 		}
 
 		$parts = parse_url($apcontact['url']);
 		unset($parts['scheme']);
 		unset($parts['path']);
-		$apcontact['addr'] = $apcontact['nick'] . '@' . str_replace('//', '', Network::unparseURL($parts));
 
+		if (empty($apcontact['addr'])) {
+			if (!empty($apcontact['nick'])) {
+				$apcontact['addr'] = $apcontact['nick'] . '@' . str_replace('//', '', Network::unparseURL($parts));
+			} else {
+				$apcontact['addr'] = '';
+			}
+		}
+
+		$apcontact['pubkey'] = null;
 		if (!empty($compacted['w3id:publicKey'])) {
 			$apcontact['pubkey'] = trim(JsonLD::fetchElement($compacted['w3id:publicKey'], 'w3id:publicKeyPem', '@value'));
+			if (strstr($apcontact['pubkey'], 'RSA ')) {
+				$apcontact['pubkey'] = Crypto::rsaToPem($apcontact['pubkey']);
+			}
 		}
 
 		$apcontact['manually-approve'] = (int)JsonLD::fetchElement($compacted, 'as:manuallyApprovesFollowers');
@@ -178,6 +243,33 @@ class APContact extends BaseObject
 			$apcontact['generator'] = JsonLD::fetchElement($compacted['as:generator'], 'as:name', '@value');
 		}
 
+		if (!empty($apcontact['following'])) {
+			$data = ActivityPub::fetchContent($apcontact['following']);
+			if (!empty($data)) {
+				if (!empty($data['totalItems'])) {
+					$apcontact['following_count'] = $data['totalItems'];
+				}
+			}
+		}
+
+		if (!empty($apcontact['followers'])) {
+			$data = ActivityPub::fetchContent($apcontact['followers']);
+			if (!empty($data)) {
+				if (!empty($data['totalItems'])) {
+					$apcontact['followers_count'] = $data['totalItems'];
+				}
+			}
+		}
+
+		if (!empty($apcontact['outbox'])) {
+			$data = ActivityPub::fetchContent($apcontact['outbox']);
+			if (!empty($data)) {
+				if (!empty($data['totalItems'])) {
+					$apcontact['statuses_count'] = $data['totalItems'];
+				}
+			}
+		}
+
 		// To-Do
 
 		// Unhandled
@@ -189,74 +281,125 @@ class APContact extends BaseObject
 		// Unhandled from Kroeg
 		// kroeg:blocks, updated
 
-		// Check if the address is resolvable
-		if (self::addrToUrl($apcontact['addr']) == $apcontact['url']) {
-			$parts = parse_url($apcontact['url']);
-			unset($parts['path']);
-			$apcontact['baseurl'] = Network::unparseURL($parts);
-		} else {
-			$apcontact['addr'] = null;
+		// When the photo is too large, try to shorten it by removing parts
+		if (strlen($apcontact['photo']) > 255) {
+			$parts = parse_url($apcontact['photo']);
+			unset($parts['fragment']);
+			$apcontact['photo'] = Network::unparseURL($parts);
+
+			if (strlen($apcontact['photo']) > 255) {
+				unset($parts['query']);
+				$apcontact['photo'] = Network::unparseURL($parts);
+			}
+
+			if (strlen($apcontact['photo']) > 255) {
+				$apcontact['photo'] = substr($apcontact['photo'], 0, 255);
+			}
+		}
+
+		if (!$webfinger && !empty($apcontact['addr'])) {
+			$data = self::fetchWebfingerData($apcontact['addr']);
+			if (!empty($data)) {
+				$apcontact['baseurl'] = $data['baseurl'];
+
+				if (empty($apcontact['alias']) && !empty($data['alias'])) {
+					$apcontact['alias'] = $data['alias'];
+				}
+				if (!empty($data['subscribe'])) {
+					$apcontact['subscribe'] = $data['subscribe'];
+				}
+			} else {
+				$apcontact['addr'] = null;
+			}
 		}
 
 		if (empty($apcontact['baseurl'])) {
 			$apcontact['baseurl'] = null;
 		}
 
+		if (empty($apcontact['subscribe'])) {
+			$apcontact['subscribe'] = null;
+		}		
+
+		if (!empty($apcontact['baseurl']) && empty($fetched_contact['gsid'])) {
+			$apcontact['gsid'] = GServer::getID($apcontact['baseurl']);
+		} elseif (!empty($fetched_contact['gsid'])) {
+			$apcontact['gsid'] = $fetched_contact['gsid'];
+		} else {
+			$apcontact['gsid'] = null;
+		}
+
 		if ($apcontact['url'] == $apcontact['alias']) {
 			$apcontact['alias'] = null;
 		}
 
 		$apcontact['updated'] = DateTimeFormat::utcNow();
 
-		DBA::update('apcontact', $apcontact, ['url' => $url], true);
-
-		// Update some data in the contact table with various ways to catch them all
-		$contact_fields = ['name' => $apcontact['name'], 'about' => $apcontact['about'], 'alias' => $apcontact['alias']];
-
-		// Fetch the type and match it with the contact type
-		$contact_types = array_keys(ActivityPub::ACCOUNT_TYPES, $apcontact['type']);
-		if (!empty($contact_types)) {
-			$contact_type = array_pop($contact_types);
-			if (is_int($contact_type)) {
-				$contact_fields['contact-type'] = $contact_type;
-
-				if ($contact_fields['contact-type'] != User::ACCOUNT_TYPE_COMMUNITY) {
-					// Resetting the 'forum' and 'prv' field when it isn't a forum
-					$contact_fields['forum'] = false;
-					$contact_fields['prv'] = false;
-				} else {
-					// Otherwise set the corresponding forum type
-					$contact_fields['forum'] = !$apcontact['manually-approve'];
-					$contact_fields['prv'] = $apcontact['manually-approve'];
-				}
-			}
+		// We delete the old entry when the URL is changed
+		if ($url != $apcontact['url']) {
+			Logger::info('Delete changed profile url', ['old' => $url, 'new' => $apcontact['url']]);
+			DBA::delete('apcontact', ['url' => $url]);
 		}
 
-		DBA::update('contact', $contact_fields, ['nurl' => Strings::normaliseLink($url)]);
-
-		if (!empty($apcontact['photo'])) {
-			$contacts = DBA::select('contact', ['uid', 'id'], ['nurl' => Strings::normaliseLink($url)]);
-			while ($contact = DBA::fetch($contacts)) {
-				Contact::updateAvatar($apcontact['photo'], $contact['uid'], $contact['id']);
-			}
-			DBA::close($contacts);
+		if (DBA::exists('apcontact', ['url' => $apcontact['url']])) {
+			DBA::update('apcontact', $apcontact, ['url' => $apcontact['url']]);
+		} else {
+			DBA::replace('apcontact', $apcontact);
 		}
 
-		// Update the gcontact table
-		// These two fields don't exist in the gcontact table
-		unset($contact_fields['forum']);
-		unset($contact_fields['prv']);
-		DBA::update('gcontact', $contact_fields, ['nurl' => Strings::normaliseLink($url)]);
-
-		Logger::log('Updated profile for ' . $url, Logger::DEBUG);
+		Logger::info('Updated profile', ['url' => $url]);
 
 		return $apcontact;
 	}
 
+	/**
+	 * 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 vital inboxes
+			$vital = DBA::exists('apcontact', ["`sharedinbox` = ? AnD `inbox` IN (SELECT `url` FROM `inbox-status` WHERE `success` > `failure`)",
+				$apcontact['sharedinbox']]);
+			if (!$vital) {
+				// 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)
 	{
@@ -264,15 +407,6 @@ class APContact extends BaseObject
 			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::insert('inbox-status', $fields);
-		} else {
-			DBA::update('inbox-status', $fields, ['url' => $url]);
-		}
+		HTTPSignature::setInboxStatus($url, true, $shared);
 	}
 }