Add imip processing

Signed-off-by: Anna Larch <anna@nextcloud.com>

appinfo/info.xml

@@ -35,6 +35,7 @@
 	<background-jobs>
 		<job>OCA\Mail\BackgroundJob\CleanupJob</job>
 		<job>OCA\Mail\BackgroundJob\OutboxWorkerJob</job>
+		<job>OCA\Mail\BackgroundJob\IMipMessageJob</job>
 	</background-jobs>
 	<repair-steps>
 		<post-migration>

lib/BackgroundJob/IMipMessageJob.php

@@ -0,0 +1,55 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * @copyright 2022 Anna Larch <anna.larch@gmx.net>
+ *
+ * @author 2022 Anna Larch <anna.larch@gmx.net>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ */
+
+namespace OCA\Mail\BackgroundJob;
+
+use OCA\Mail\Service\IMipService;
+use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\BackgroundJob\TimedJob;
+use function defined;
+use function method_exists;
+
+class IMipMessageJob extends TimedJob {
+	private IMipService $iMipService;
+
+	public function __construct(ITimeFactory $time,
+								IMipService $iMipService) {
+		parent::__construct($time);
+
+		// Run once per hour
+		$this->setInterval(60 * 60);
+		/**
+		 * @todo remove checks with 24+
+		 */
+		if (defined('\OCP\BackgroundJob\IJob::TIME_SENSITIVE') && method_exists($this, 'setTimeSensitivity')) {
+			$this->setTimeSensitivity(self::TIME_SENSITIVE);
+		}
+		$this->iMipService = $iMipService;
+	}
+
+	protected function run($argument): void {
+		$this->iMipService->process();
+	}
+}

lib/BackgroundJob/PreviewEnhancementProcessingJob.php

@@ -0,0 +1,101 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright Anna Larch <anna.larch@gmx.net>
+ *
+ * @author Anna Larch <anna.larch@gmx.net>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\Mail\BackgroundJob;
+
+use OCA\Mail\Service\AccountService;
+use OCA\Mail\Service\PreprocessingService;
+use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\BackgroundJob\IJobList;
+use OCP\BackgroundJob\TimedJob;
+use OCP\DB\Exception;
+use OCP\IUserManager;
+use Psr\Log\LoggerInterface;
+use function sprintf;
+
+class PreviewEnhancementProcessingJob extends TimedJob {
+	private IUserManager $userManager;
+	private AccountService $accountService;
+	private LoggerInterface $logger;
+	private IJobList $jobList;
+	private PreprocessingService $preprocessingService;
+
+	public function __construct(ITimeFactory $time,
+								IUserManager $userManager,
+								AccountService $accountService,
+								PreprocessingService $preprocessingService,
+								LoggerInterface $logger,
+								IJobList $jobList) {
+		parent::__construct($time);
+
+		$this->userManager = $userManager;
+		$this->accountService = $accountService;
+		$this->logger = $logger;
+		$this->jobList = $jobList;
+		$this->preprocessingService = $preprocessingService;
+
+		$this->setInterval(3600);
+		$this->setTimeSensitivity(self::TIME_SENSITIVE);
+	}
+
+	/**
+	 * @return void
+	 */
+	public function run($argument) {
+		$accountId = (int)$argument['accountId'];
+
+		try {
+			$account = $this->accountService->findById($accountId);
+		} catch (DoesNotExistException $e) {
+			$this->logger->debug('Could not find account <' . $accountId . '> removing from jobs');
+			$this->jobList->remove(self::class, $argument);
+			return;
+		}
+
+		$user = $this->userManager->get($account->getUserId());
+		if ($user === null || !$user->isEnabled()) {
+			$this->logger->debug(sprintf(
+				'Account %d of user %s could not be found or was disabled, skipping preprocessing of messages',
+				$account->getId(),
+				$account->getUserId()
+			));
+			return;
+		}
+
+		$dbAccount = $account->getMailAccount();
+		if (!is_null($dbAccount->getProvisioningId()) && $dbAccount->getInboundPassword() === null) {
+			$this->logger->info("Ignoring preprocessing job for provisioned account that has no password set yet");
+			return;
+		}
+
+		try {
+			$limitTimestamp = $this->time->getTime() - (60 * 60 * 24 * 14); // Two weeks into the past
+			$this->preprocessingService->process($limitTimestamp, $account);
+		} catch (Exception $e) {
+			$this->logger->error('Error processing messages', ['exception' => $e]);
+		}
+	}
+}

lib/Db/MailboxMapper.php

@@ -35,6 +35,7 @@
 use OCP\AppFramework\Db\MultipleObjectsReturnedException;
 use OCP\AppFramework\Db\QBMapper;
 use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\DB\Exception;
 use OCP\DB\QueryBuilder\IQueryBuilder;
 use OCP\DB\QueryBuilder\IQueryFunction;
 use OCP\IDBConnection;
@@ -129,6 +130,23 @@ public function findById(int $id): Mailbox {
 		}
 	}
 
+	/**
+	 * @return Mailbox[]
+	 *
+	 * @throws Exception
+	 */
+	public function findByIds(array $ids): array {
+		$qb = $this->db->getQueryBuilder();
+
+		$select = $qb->select('*')
+			->from($this->getTableName())
+			->where(
+				$qb->expr()->in('id', $qb->createNamedParameter($ids, IQueryBuilder::PARAM_INT_ARRAY), IQueryBuilder::PARAM_INT_ARRAY)
+			);
+		return $this->findEntities($select);
+	}
+
+
 	/**
 	 * @param int $id
 	 * @param string $uid

lib/Db/Message.php

@@ -76,6 +76,12 @@
  * @method null|string getPreviewText()
  * @method void setUpdatedAt(int $time)
  * @method int getUpdatedAt()
+ * @method bool isImipMessage()
+ * @method void setImipMessage(bool $imipMessage)
+ * @method bool isImipProcessed()
+ * @method void setImipProcessed(bool $imipProcessed)
+ * @method bool isImipError()
+ * @method void setImipError(bool $imipError)
  */
 class Message extends Entity implements JsonSerializable {
 	private const MUTABLE_FLAGS = [
@@ -114,6 +120,9 @@ class Message extends Entity implements JsonSerializable {
 	protected $flagImportant = false;
 	protected $flagMdnsent;
 	protected $previewText;
+	protected $imipMessage = false;
+	protected $imipProcessed = false;
+	protected $imipError = false;
 
 	/** @var AddressList */
 	private $from;
@@ -152,6 +161,9 @@ public function __construct() {
 		$this->addType('flagImportant', 'boolean');
 		$this->addType('flagMdnsent', 'boolean');
 		$this->addType('updatedAt', 'integer');
+		$this->addType('imipMessage', 'boolean');
+		$this->addType('imipProcessed', 'boolean');
+		$this->addType('imipError', 'boolean');
 	}
 
 	/**
@@ -316,6 +328,7 @@ function (Tag $tag) {
 			'inReplyTo' => $this->getInReplyTo(),
 			'references' => empty($this->getReferences()) ? null: json_decode($this->getReferences(), true),
 			'threadRootId' => $this->getThreadRootId(),
+			'imipMessage' => $this->isImipMessage(),
 			'previewText' => $this->getPreviewText(),
 		];
 	}

lib/Db/MessageMapper.php

@@ -312,7 +312,6 @@ public function insertBulk(Account $account, Message ...$messages): void {
 				$qb1->setParameter('flag_notjunk', $message->getFlagNotjunk(), IQueryBuilder::PARAM_BOOL);
 				$qb1->setParameter('flag_important', $message->getFlagImportant(), IQueryBuilder::PARAM_BOOL);
 				$qb1->setParameter('flag_mdnsent', $message->getFlagMdnsent(), IQueryBuilder::PARAM_BOOL);
-
 				$qb1->execute();
 
 				$messageId = $qb1->getLastInsertId();
@@ -482,6 +481,7 @@ public function updatePreviewDataBulk(Message ...$messages): array {
 				->set('preview_text', $query->createParameter('preview_text'))
 				->set('structure_analyzed', $query->createNamedParameter(true, IQueryBuilder::PARAM_BOOL))
 				->set('updated_at', $query->createNamedParameter($this->timeFactory->getTime(), IQueryBuilder::PARAM_INT))
+				->set('imip_message', $query->createParameter('imip_message'))
 				->where($query->expr()->andX(
 					$query->expr()->eq('uid', $query->createParameter('uid')),
 					$query->expr()->eq('mailbox_id', $query->createParameter('mailbox_id'))
@@ -501,6 +501,7 @@ public function updatePreviewDataBulk(Message ...$messages): array {
 					$message->getPreviewText() === null ? null : mb_strcut($message->getPreviewText(), 0, 255),
 					$message->getPreviewText() === null ? IQueryBuilder::PARAM_NULL : IQueryBuilder::PARAM_STR
 				);
+				$query->setParameter('imip_message', $message->isImipMessage(), IQueryBuilder::PARAM_BOOL);
 
 				$query->execute();
 			}
@@ -516,6 +517,50 @@ public function updatePreviewDataBulk(Message ...$messages): array {
 		return $messages;
 	}
 
+	/**
+	 * @param Message ...$messages
+	 *
+	 * @return Message[]
+	 */
+	public function updateImipData(Message ...$messages): array {
+		$this->db->beginTransaction();
+
+		try {
+			$query = $this->db->getQueryBuilder();
+			$query->update($this->getTableName())
+				->set('imip_message', $query->createParameter('imip_message'))
+				->set('imip_error', $query->createParameter('imip_error'))
+				->set('imip_processed', $query->createParameter('imip_processed'))
+				->where($query->expr()->andX(
+					$query->expr()->eq('uid', $query->createParameter('uid')),
+					$query->expr()->eq('mailbox_id', $query->createParameter('mailbox_id'))
+				));
+
+			foreach ($messages as $message) {
+				if (empty($message->getUpdatedFields())) {
+					// Micro optimization
+					continue;
+				}
+
+				$query->setParameter('uid', $message->getUid(), IQueryBuilder::PARAM_INT);
+				$query->setParameter('mailbox_id', $message->getMailboxId(), IQueryBuilder::PARAM_INT);
+				$query->setParameter('imip_message', $message->isImipMessage(), IQueryBuilder::PARAM_BOOL);
+				$query->setParameter('imip_error', $message->isImipError(), IQueryBuilder::PARAM_BOOL);
+				$query->setParameter('imip_processed', $message->isImipProcessed(), IQueryBuilder::PARAM_BOOL);
+				$query->execute();
+			}
+
+			$this->db->commit();
+		} catch (Throwable $e) {
+			// Make sure to always roll back, otherwise the outer code runs in a failed transaction
+			$this->db->rollBack();
+
+			throw $e;
+		}
+
+		return $messages;
+	}
+
 	public function resetPreviewDataFlag(): void {
 		$qb = $this->db->getQueryBuilder();
 		$update = $qb->update($this->getTableName())
@@ -1228,4 +1273,45 @@ public function resetInReplyTo(): int {
 			);
 		return $update->execute();
 	}
+
+	/**
+	 * Get all iMIP messages from the last two weeks
+	 * that haven't been processed yet
+	 * @return Message[]
+	 */
+	public function findIMipMessagesAscending(): array {
+		$time = $this->timeFactory->getTime() - 60 * 60 * 24 * 14;
+		$qb = $this->db->getQueryBuilder();
+
+		$select = $qb->select('*')
+			->from($this->getTableName())
+			->where(
+				$qb->expr()->eq('imip_message', $qb->createNamedParameter(true, IQueryBuilder::PARAM_BOOL), IQueryBuilder::PARAM_BOOL),
+				$qb->expr()->eq('imip_processed', $qb->createNamedParameter(false, IQueryBuilder::PARAM_BOOL), IQueryBuilder::PARAM_BOOL),
+				$qb->expr()->eq('imip_error', $qb->createNamedParameter(false, IQueryBuilder::PARAM_BOOL), IQueryBuilder::PARAM_BOOL),
+				$qb->expr()->eq('flag_junk', $qb->createNamedParameter(false, IQueryBuilder::PARAM_BOOL), IQueryBuilder::PARAM_BOOL),
+				$qb->expr()->gt('sent_at', $qb->createNamedParameter($time, IQueryBuilder::PARAM_INT)),
+			)->orderBy('sent_at', 'ASC'); // make sure we don't process newer messages first
+
+		return $this->findEntities($select);
+	}
+
+	/**
+	 * @return Message[]
+	 *
+	 * @throws \OCP\DB\Exception
+	 */
+	public function getUnanalysed(int $lastRun, array $mailboxIds): array {
+		$qb = $this->db->getQueryBuilder();
+
+		$select = $qb->select('*')
+			->from($this->getTableName())
+			->where(
+				$qb->expr()->lte('sent_at', $qb->createNamedParameter($lastRun. IQueryBuilder::PARAM_INT), IQueryBuilder::PARAM_INT),
+				$qb->expr()->eq('structure_analyzed', $qb->createNamedParameter(false, IQueryBuilder::PARAM_BOOL), IQueryBuilder::PARAM_BOOL),
+				$qb->expr()->in('mailbox_id', $qb->createNamedParameter($mailboxIds, IQueryBuilder::PARAM_INT_ARRAY), IQueryBuilder::PARAM_INT_ARRAY),
+			)->orderBy('sent_at', 'ASC');
+
+		return $this->findEntities($select);
+	}
 }