Add SessionUsers class including tests

src/Core/Session/Capability/IHandleUserSessions.php

@@ -0,0 +1,81 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2022, the Friendica project
+ *
+ * @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\Core\Session\Capability;
+
+/**
+ * Handles user infos based on session infos
+ */
+interface IHandleUserSessions
+{
+	/**
+	 * Returns the user id of locally logged-in user or false.
+	 *
+	 * @return int|bool user id or false
+	 */
+	public function getLocalUserId();
+
+	/**
+	 * Returns the public contact id of logged-in user or false.
+	 *
+	 * @return int|bool public contact id or false
+	 */
+	public function getPublicContactId();
+
+	/**
+	 * Returns public contact id of authenticated site visitor or false
+	 *
+	 * @return int|bool visitor_id or false
+	 */
+	public function getRemoteUserId();
+
+	/**
+	 * Return the user contact ID of a visitor for the given user ID they are visiting
+	 *
+	 * @param int $uid User ID
+	 *
+	 * @return int
+	 */
+	public function getRemoteContactID(int $uid): int;
+
+	/**
+	 * Returns User ID for given contact ID of the visitor
+	 *
+	 * @param int $cid Contact ID
+	 *
+	 * @return int User ID for given contact ID of the visitor
+	 */
+	public function getUserIDForVisitorContactID(int $cid): int;
+
+	/**
+	 * Returns if the current visitor is authenticated
+	 *
+	 * @return bool "true" when visitor is either a local or remote user
+	 */
+	public function isAuthenticated(): bool;
+
+	/**
+	 * Set the session variable that contains the contact IDs for the visitor's contact URL
+	 *
+	 * @param string $url Contact URL
+	 */
+	public function setVisitorsContacts();
+}

src/Core/Session/Handler/Cache.php

@@ -61,7 +61,7 @@ class Cache implements SessionHandlerInterface
 				return $data;
 			}
 		} catch (CachePersistenceException $exception) {
-			$this->logger->warning('Cannot read session.'. ['id' => $id, 'exception' => $exception]);
+			$this->logger->warning('Cannot read session.', ['id' => $id, 'exception' => $exception]);
 			return '';
 		}
 

src/Core/Session/Handler/Database.php

@@ -70,7 +70,7 @@ class Database implements SessionHandlerInterface
 				return $session['data'];
 			}
 		} catch (\Exception $exception) {
-			$this->logger->warning('Cannot read session.'. ['id' => $id, 'exception' => $exception]);
+			$this->logger->warning('Cannot read session.', ['id' => $id, 'exception' => $exception]);
 			return '';
 		}
 
@@ -114,7 +114,7 @@ class Database implements SessionHandlerInterface
 				$this->dba->insert('session', $fields);
 			}
 		} catch (\Exception $exception) {
-			$this->logger->warning('Cannot write session.'. ['id' => $id, 'exception' => $exception]);
+			$this->logger->warning('Cannot write session.', ['id' => $id, 'exception' => $exception]);
 			return false;
 		}
 
@@ -131,7 +131,7 @@ class Database implements SessionHandlerInterface
 		try {
 			return $this->dba->delete('session', ['sid' => $id]);
 		} catch (\Exception $exception) {
-			$this->logger->warning('Cannot destroy session.'. ['id' => $id, 'exception' => $exception]);
+			$this->logger->warning('Cannot destroy session.', ['id' => $id, 'exception' => $exception]);
 			return false;
 		}
 	}
@@ -141,7 +141,7 @@ class Database implements SessionHandlerInterface
 		try {
 			return $this->dba->delete('session', ["`expire` < ?", time()]);
 		} catch (\Exception $exception) {
-			$this->logger->warning('Cannot use garbage collector.'. ['exception' => $exception]);
+			$this->logger->warning('Cannot use garbage collector.', ['exception' => $exception]);
 			return false;
 		}
 	}

src/Core/Session/Model/UserSession.php

@@ -0,0 +1,121 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2022, the Friendica project
+ *
+ * @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\Core\Session\Model;
+
+use Friendica\Core\Session\Capability\IHandleSessions;
+use Friendica\Core\Session\Capability\IHandleUserSessions;
+use Friendica\Model\Contact;
+
+class UserSession implements IHandleUserSessions
+{
+	/** @var IHandleSessions */
+	private $session;
+	/** @var int|bool saves the public Contact ID for later usage */
+	protected $publicContactId = false;
+
+	public function __construct(IHandleSessions $session)
+	{
+		$this->session = $session;
+	}
+
+	/** {@inheritDoc} */
+	public function getLocalUserId()
+	{
+		if (!empty($this->session->get('authenticated')) && !empty($this->session->get('uid'))) {
+			return intval($this->session->get('uid'));
+		}
+
+		return false;
+	}
+
+	/** {@inheritDoc} */
+	public function getPublicContactId()
+	{
+		if (empty($this->publicContactId) && !empty($this->session->get('authenticated'))) {
+			if (!empty($this->session->get('my_address'))) {
+				// Local user
+				$this->publicContactId = Contact::getIdForURL($this->session->get('my_address'), 0, false);
+			} elseif (!empty($this->session->get('visitor_home'))) {
+				// Remote user
+				$this->publicContactId = Contact::getIdForURL($this->session->get('visitor_home'), 0, false);
+			}
+		} elseif (empty($this->session->get('authenticated'))) {
+			$this->publicContactId = false;
+		}
+
+		return $this->publicContactId;
+	}
+
+	/** {@inheritDoc} */
+	public function getRemoteUserId()
+	{
+		if (empty($this->session->get('authenticated'))) {
+			return false;
+		}
+
+		if (!empty($this->session->get('visitor_id'))) {
+			return (int)$this->session->get('visitor_id');
+		}
+
+		return false;
+	}
+
+	/** {@inheritDoc} */
+	public function getRemoteContactID(int $uid): int
+	{
+		if (!empty($this->session->get('remote')[$uid])) {
+			$remote = $this->session->get('remote')[$uid];
+		} else {
+			$remote = 0;
+		}
+
+		$local_user = !empty($this->session->get('authenticated')) ? $this->session->get('uid') : 0;
+
+		if (empty($remote) && ($local_user != $uid) && !empty($my_address = $this->session->get('my_address'))) {
+			$remote = Contact::getIdForURL($my_address, $uid, false);
+		}
+
+		return $remote;
+	}
+
+	/** {@inheritDoc} */
+	public function getUserIDForVisitorContactID(int $cid): int
+	{
+		if (empty($this->session->get('remote'))) {
+			return false;
+		}
+
+		return array_search($cid, $this->session->get('remote'));
+	}
+
+	/** {@inheritDoc} */
+	public function isAuthenticated(): bool
+	{
+		return $this->session->get('authenticated', false);
+	}
+
+	/** {@inheritDoc} */
+	public function setVisitorsContacts()
+	{
+		$this->session->set('remote', Contact::getVisitorByUrl($this->session->get('my_url')));
+	}
+}

src/Core/Session/Type/ArraySession.php

@@ -0,0 +1,81 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2022, the Friendica project
+ *
+ * @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\Core\Session\Type;
+
+use Friendica\Core\Session\Capability\IHandleSessions;
+
+class ArraySession implements IHandleSessions
+{
+	/** @var array */
+	protected $data = [];
+
+	public function __construct(array $data = [])
+	{
+		$this->data = $data;
+	}
+
+	public function start(): IHandleSessions
+	{
+		return $this;
+	}
+
+	public function exists(string $name): bool
+	{
+		return !empty($this->data[$name]);
+	}
+
+	public function get(string $name, $defaults = null)
+	{
+		return $this->data[$name] ?? $defaults;
+	}
+
+	public function pop(string $name, $defaults = null)
+	{
+		$value = $defaults;
+		if ($this->exists($name)) {
+			$value = $this->get($name);
+			$this->remove($name);
+		}
+
+		return $value;
+	}
+
+	public function set(string $name, $value)
+	{
+		$this->data[$name] = $value;
+	}
+
+	public function setMultiple(array $values)
+	{
+		$this->data = array_merge($values, $this->data);
+	}
+
+	public function remove(string $name)
+	{
+		unset($this->data[$name]);
+	}
+
+	public function clear()
+	{
+		$this->data = [];
+	}
+}

src/DI.php

@@ -22,6 +22,7 @@
 namespace Friendica;
 
 use Dice\Dice;
+use Friendica\Core\Session\Capability\IHandleUserSessions;
 use Friendica\Navigation\SystemMessages;
 use Psr\Log\LoggerInterface;
 
@@ -219,6 +220,11 @@ abstract class DI
 		return self::$dice->create(Core\Session\Capability\IHandleSessions::class);
 	}
 
+	public static function userSession(): IHandleUserSessions
+	{
+		return self::$dice->create(Core\Session\Capability\IHandleUserSessions::class);
+	}
+
 	/**
 	 * @return \Friendica\Core\Storage\Repository\StorageManager
 	 */

src/Model/Contact.php

@@ -261,6 +261,32 @@ class Contact
 		return DBA::selectFirst('contact', $fields, ['uri-id' => $uri_id], ['order' => ['uid']]);
 	}
 
+	/**
+	 * Fetch all remote contacts for a given contact url
+	 *
+	 * @param string $url The URL of the contact
+	 * @param array  $fields The wanted fields
+	 *
+	 * @return array all remote contacts
+	 *
+	 * @throws \Exception
+	 */
+	public static function getVisitorByUrl(string $url, array $fields = ['id', 'uid']): array
+	{
+		$remote = [];
+
+		$remote_contacts = DBA::select('contact', ['id', 'uid'], ['nurl' => Strings::normaliseLink($url), 'rel' => [Contact::FOLLOWER, Contact::FRIEND], 'self' => false]);
+		while ($contact = DBA::fetch($remote_contacts)) {
+			if (($contact['uid'] == 0) || Contact\User::isBlocked($contact['id'], $contact['uid'])) {
+				continue;
+			}
+			$remote[$contact['uid']] = $contact['id'];
+		}
+		DBA::close($remote_contacts);
+
+		return $remote;
+	}
+
 	/**
 	 * Fetches a contact by a given url
 	 *

static/dependencies.config.php

@@ -41,6 +41,7 @@ use Friendica\Core\PConfig;
 use Friendica\Core\L10n;
 use Friendica\Core\Lock;
 use Friendica\Core\Session\Capability\IHandleSessions;
+use Friendica\Core\Session\Capability\IHandleUserSessions;
 use Friendica\Core\Storage\Repository\StorageManager;
 use Friendica\Database\Database;
 use Friendica\Database\Definition\DbaDefinition;
@@ -224,6 +225,9 @@ return [
 			['start', [], Dice::CHAIN_CALL],
 		],
 	],
+	IHandleUserSessions::class => [
+		'instanceOf' => \Friendica\Core\Session\Model\UserSession::class,
+	],
 	Cookie::class => [
 		'constructParams' => [
 			$_COOKIE

tests/src/Core/Session/UserSessionTest.php

@@ -0,0 +1,218 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2022, the Friendica project
+ *
+ * @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\Test\src\Core\Session;
+
+use Friendica\Core\Session\Model\UserSession;
+use Friendica\Core\Session\Type\ArraySession;
+use Friendica\Test\MockedTest;
+
+class UserSessionTest extends MockedTest
+{
+	public function dataLocalUserId()
+	{
+		return [
+			'standard' => [
+				'data' => [
+					'authenticated' => true,
+					'uid'           => 21,
+				],
+				'expected' => 21,
+			],
+			'not_auth' => [
+				'data' => [
+					'authenticated' => false,
+					'uid'           => 21,
+				],
+				'expected' => false,
+			],
+			'no_uid' => [
+				'data' => [
+					'authenticated' => true,
+				],
+				'expected' => false,
+			],
+			'no_auth' => [
+				'data' => [
+					'uid' => 21,
+				],
+				'expected' => false,
+			],
+			'invalid' => [
+				'data' => [
+					'authenticated' => false,
+					'uid'           => 'test',
+				],
+				'expected' => false,
+			],
+		];
+	}
+
+	/**
+	 * @dataProvider dataLocalUserId
+	 */
+	public function testGetLocalUserId(array $data, $expected)
+	{
+		$userSession = new UserSession(new ArraySession($data));
+		$this->assertEquals($expected, $userSession->getLocalUserId());
+	}
+
+	public function testPublicContactId()
+	{
+		$this->markTestSkipped('Needs Contact::getIdForURL testable first');
+	}
+
+	public function dataGetRemoteUserId()
+	{
+		return [
+			'standard' => [
+				'data' => [
+					'authenticated' => true,
+					'visitor_id'    => 21,
+				],
+				'expected' => 21,
+			],
+			'not_auth' => [
+				'data' => [
+					'authenticated' => false,
+					'visitor_id'    => 21,
+				],
+				'expected' => false,
+			],
+			'no_visitor_id' => [
+				'data' => [
+					'authenticated' => true,
+				],
+				'expected' => false,
+			],
+			'no_auth' => [
+				'data' => [
+					'visitor_id' => 21,
+				],
+				'expected' => false,
+			],
+			'invalid' => [
+				'data' => [
+					'authenticated' => false,
+					'visitor_id'    => 'test',
+				],
+				'expected' => false,
+			],
+		];
+	}
+
+	/**
+	 * @dataProvider dataGetRemoteUserId
+	 */
+	public function testGetRemoteUserId(array $data, $expected)
+	{
+		$userSession = new UserSession(new ArraySession($data));
+		$this->assertEquals($expected, $userSession->getRemoteUserId());
+	}
+
+	/// @fixme Add more data when Contact::getIdForUrl ist a dynamic class
+	public function dataGetRemoteContactId()
+	{
+		return [
+			'remote_exists' => [
+				'uid'  => 1,
+				'data' => [
+					'remote' => ['1' => '21'],
+				],
+				'expected' => 21,
+			],
+		];
+	}
+
+	/**
+	 * @dataProvider dataGetRemoteContactId
+	 */
+	public function testGetRemoteContactId(int $uid, array $data, $expected)
+	{
+		$userSession = new UserSession(new ArraySession($data));
+		$this->assertEquals($expected, $userSession->getRemoteContactID($uid));
+	}
+
+	public function dataGetUserIdForVisitorContactID()
+	{
+		return [
+			'standard' => [
+				'cid'  => 21,
+				'data' => [
+					'remote' => ['3' => '21'],
+				],
+				'expected' => 3,
+			],
+			'missing' => [
+				'cid'  => 2,
+				'data' => [
+					'remote' => ['3' => '21'],
+				],
+				'expected' => false,
+			],
+			'empty' => [
+				'cid'  => 21,
+				'data' => [
+				],
+				'expected' => false,
+			],
+		];
+	}
+
+	/** @dataProvider dataGetUserIdForVisitorContactID */
+	public function testGetUserIdForVisitorContactID(int $cid, array $data, $expected)
+	{
+		$userSession = new UserSession(new ArraySession($data));
+		$this->assertEquals($expected, $userSession->getUserIDForVisitorContactID($cid));
+	}
+
+	public function dataAuthenticated()
+	{
+		return [
+			'authenticated' => [
+				'data' => [
+					'authenticated' => true,
+				],
+				'expected' => true,
+			],
+			'not_authenticated' => [
+				'data' => [
+					'authenticated' => false,
+				],
+				'expected' => false,
+			],
+			'missing' => [
+				'data' => [
+				],
+				'expected' => false,
+			],
+		];
+	}
+
+	/**
+	 * @dataProvider dataAuthenticated
+	 */
+	public function testIsAuthenticated(array $data, $expected)
+	{
+		$userSession = new UserSession(new ArraySession($data));
+		$this->assertEquals($expected, $userSession->isAuthenticated());
+	}
+}