--- /dev/null
+<?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\Worker;
+
+use Friendica\Contact\FriendSuggest\Collection\FriendSuggests;
+use Friendica\Contact\FriendSuggest\Exception\FriendSuggestNotFoundException;
+use Friendica\Core\Logger;
+use Friendica\Core\Protocol;
+use Friendica\Core\Worker;
+use Friendica\Database\DBA;
+use Friendica\DI;
+use Friendica\Model\Contact;
+use Friendica\Model\GServer;
+use Friendica\Model\Item;
+use Friendica\Model\Post;
+use Friendica\Model\User;
+use Friendica\Protocol\Activity;
+use Friendica\Protocol\DFRN;
+use Friendica\Protocol\Diaspora;
+use Friendica\Protocol\Email;
+use Friendica\Protocol\Relay;
+use Friendica\Util\Network;
+
+class Delivery
+{
+ const MAIL = 'mail';
+ const SUGGESTION = 'suggest';
+ const RELOCATION = 'relocate';
+ const DELETION = 'drop';
+ const POST = 'wall-new';
+ const REMOVAL = 'removeme';
+ const PROFILEUPDATE = 'profileupdate';
+
+ public static function execute(string $cmd, int $post_uriid, int $contact_id, int $sender_uid = 0)
+ {
+ Logger::info('Invoked', ['cmd' => $cmd, 'target' => $post_uriid, 'sender_uid' => $sender_uid, 'contact' => $contact_id]);
+
+ $top_level = false;
+ $followup = false;
+ $public_message = false;
+
+ $items = [];
+ if ($cmd == self::MAIL) {
+ $target_item = DBA::selectFirst('mail', [], ['id' => $post_uriid]);
+ if (!DBA::isResult($target_item)) {
+ return;
+ }
+ $uid = $target_item['uid'];
+ } elseif ($cmd == self::SUGGESTION) {
+ try {
+ $target_item = DI::fsuggest()->selectOneById($post_uriid)->toArray();
+ } catch (FriendSuggestNotFoundException $e) {
+ DI::logger()->info('Cannot find FriendSuggestion', ['id' => $post_uriid]);
+ return;
+ }
+ $uid = $target_item['uid'];
+ } elseif ($cmd == self::RELOCATION) {
+ $uid = $post_uriid;
+ $target_item = [];
+ } else {
+ $item = Post::selectFirst(['id', 'parent'], ['uri-id' => $post_uriid, 'uid' => $sender_uid]);
+ if (!DBA::isResult($item) || empty($item['parent'])) {
+ Logger::warning('Post not found', ['uri-id' => $post_uriid, 'uid' => $sender_uid]);
+ return;
+ }
+ $target_id = intval($item['id']);
+ $parent_id = intval($item['parent']);
+
+ $condition = ['id' => [$target_id, $parent_id], 'visible' => true];
+ $params = ['order' => ['id']];
+ $itemdata = Post::select(Item::DELIVER_FIELDLIST, $condition, $params);
+
+ while ($item = Post::fetch($itemdata)) {
+ if ($item['verb'] == Activity::ANNOUNCE) {
+ continue;
+ }
+
+ if ($item['id'] == $parent_id) {
+ $parent = $item;
+ }
+ if ($item['id'] == $target_id) {
+ $target_item = $item;
+ }
+ $items[] = $item;
+ }
+ DBA::close($itemdata);
+
+ if (empty($target_item)) {
+ Logger::warning("No target item data. Quitting here.", ['id' => $target_id]);
+ return;
+ }
+
+ if (empty($parent)) {
+ Logger::warning('Parent ' . $parent_id . ' for item ' . $target_id . "wasn't found. Quitting here.");
+ self::setFailedQueue($cmd, $target_item);
+ return;
+ }
+
+ if (!empty($target_item['contact-uid'])) {
+ $uid = $target_item['contact-uid'];
+ } elseif (!empty($target_item['uid'])) {
+ $uid = $target_item['uid'];
+ } else {
+ Logger::info('Only public users for item ' . $target_id);
+ self::setFailedQueue($cmd, $target_item);
+ return;
+ }
+
+ $condition = ['uri' => $target_item['thr-parent'], 'uid' => $target_item['uid']];
+ $thr_parent = Post::selectFirst(['network', 'object'], $condition);
+ if (!DBA::isResult($thr_parent)) {
+ // Shouldn't happen. But when this does, we just take the parent as thread parent.
+ // That's totally okay for what we use this variable here.
+ $thr_parent = $parent;
+ }
+
+ if (!empty($contact_id) && Contact::isArchived($contact_id)) {
+ Logger::info('Contact is archived', ['id' => $contact_id, 'cmd' => $cmd, 'item' => $target_item['id']]);
+ self::setFailedQueue($cmd, $target_item);
+ return;
+ }
+
+ // avoid race condition with deleting entries
+ if ($items[0]['deleted']) {
+ foreach ($items as $item) {
+ $item['deleted'] = 1;
+ }
+ }
+
+ $top_level = $target_item['gravity'] == Item::GRAVITY_PARENT;
+
+ // This is IMPORTANT!!!!
+
+ // We will only send a "notify owner to relay" or followup message if the referenced post
+ // originated on our system by virtue of having our hostname somewhere
+ // in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
+ // if $parent['wall'] == 1 we will already have the parent message in our array
+ // and we will relay the whole lot.
+
+ $localhost = DI::baseUrl()->getHostname();
+ if (strpos($localhost, ':')) {
+ $localhost = substr($localhost, 0, strpos($localhost, ':'));
+ }
+ /**
+ *
+ * Be VERY CAREFUL if you make any changes to the following line. Seemingly innocuous changes
+ * have been known to cause runaway conditions which affected several servers, along with
+ * permissions issues.
+ *
+ */
+
+ if (!$top_level && ($parent['wall'] == 0) && stristr($target_item['uri'], $localhost)) {
+ Logger::info('Followup ' . $target_item["guid"]);
+ // local followup to remote post
+ $followup = true;
+ }
+
+ if (empty($parent['allow_cid'])
+ && empty($parent['allow_gid'])
+ && empty($parent['deny_cid'])
+ && empty($parent['deny_gid'])
+ && ($parent['private'] != Item::PRIVATE)) {
+ $public_message = true;
+ }
+ }
+
+ if (empty($items)) {
+ Logger::warning('No delivery data', ['command' => $cmd, 'uri-id' => $post_uriid, 'cid' => $contact_id]);
+ }
+
+ $owner = User::getOwnerDataById($uid);
+ if (!DBA::isResult($owner)) {
+ self::setFailedQueue($cmd, $target_item);
+ return;
+ }
+
+ // We don't deliver our items to blocked, archived or pending contacts, and not to ourselves either
+ $contact = DBA::selectFirst('contact', [],
+ ['id' => $contact_id, 'archive' => false, 'blocked' => false, 'pending' => false, 'self' => false]
+ );
+ if (!DBA::isResult($contact)) {
+ self::setFailedQueue($cmd, $target_item);
+ return;
+ }
+
+ if (Network::isUrlBlocked($contact['url'])) {
+ self::setFailedQueue($cmd, $target_item);
+ return;
+ }
+
+ $protocol = GServer::getProtocol($contact['gsid'] ?? 0);
+
+ // Transmit via Diaspora if the thread had started as Diaspora post.
+ // Also transmit via Diaspora if this is a direct answer to a Diaspora comment.
+ // This is done since the uri wouldn't match (Diaspora doesn't transmit it)
+ // Also transmit relayed posts from Diaspora contacts via Diaspora.
+ if (($contact['network'] != Protocol::DIASPORA) && in_array(Protocol::DIASPORA, [$parent['network'] ?? '', $thr_parent['network'] ?? '', $target_item['network'] ?? ''])) {
+ Logger::info('Enforcing the Diaspora protocol', ['id' => $contact['id'], 'network' => $contact['network'], 'parent' => $parent['network'], 'thread-parent' => $thr_parent['network'], 'post' => $target_item['network']]);
+ $contact['network'] = Protocol::DIASPORA;
+ }
+
+ Logger::notice('Delivering', ['cmd' => $cmd, 'uri-id' => $post_uriid, 'followup' => $followup, 'network' => $contact['network']]);
+
+ switch ($contact['network']) {
+ case Protocol::DFRN:
+ self::deliverDFRN($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup, $protocol);
+ break;
+
+ case Protocol::DIASPORA:
+ self::deliverDiaspora($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup);
+ break;
+
+ case Protocol::MAIL:
+ self::deliverMail($cmd, $contact, $owner, $target_item, $thr_parent);
+ break;
+
+ default:
+ break;
+ }
+
+ return;
+ }
+
+ /**
+ * Increased the "failed" counter in the item delivery data
+ *
+ * @param string $cmd Command
+ * @param array $item Item array
+ *
+ * @return void
+ */
+ private static function setFailedQueue(string $cmd, array $item)
+ {
+ if ($cmd != Delivery::POST) {
+ return;
+ }
+
+ Post\DeliveryData::incrementQueueFailed($item['uri-id'] ?? $item['id']);
+ }
+
+ /**
+ * Deliver content via DFRN
+ *
+ * @param string $cmd Command
+ * @param array $contact Contact record of the receiver
+ * @param array $owner Owner record of the sender
+ * @param array $items Item record of the content and the parent
+ * @param array $target_item Item record of the content
+ * @param boolean $public_message Is the content public?
+ * @param boolean $top_level Is it a thread starter?
+ * @param boolean $followup Is it an answer to a remote post?
+ * @param int|null $server_protocol The protocol of the server
+ *
+ * @return void
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+ * @throws \ImagickException
+ */
+ private static function deliverDFRN(string $cmd, array $contact, array $owner, array $items, array $target_item, bool $public_message, bool $top_level, bool $followup, int $server_protocol = null)
+ {
+ $target_item_id = $target_item['guid'] ?? '' ?: $target_item['id'] ?? null;
+
+ // Transmit Diaspora reshares via Diaspora if the Friendica contact support Diaspora
+ if (Diaspora::getReshareDetails($target_item) && Diaspora::isSupportedByContactUrl($contact['addr'])) {
+ Logger::info('Reshare will be transmitted via Diaspora', ['url' => $contact['url'], 'guid' => $target_item_id]);
+ self::deliverDiaspora($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup);
+ return;
+ }
+
+ Logger::info('Deliver ' . ($target_item_id ?? 'relocation') . ' via DFRN to ' . ($contact['addr'] ?? '' ?: $contact['url']));
+
+ if ($cmd == self::MAIL) {
+ $item = $target_item;
+ $item['body'] = Item::fixPrivatePhotos($item['body'], $owner['uid'], null, $item['contact-id']);
+ $atom = DFRN::mail($item, $owner);
+ } elseif ($cmd == self::SUGGESTION) {
+ $item = $target_item;
+ $atom = DFRN::fsuggest($item, $owner);
+ DI::fsuggest()->delete(new FriendSuggests([DI::fsuggest()->selectOneById($item['id'])]));
+ } elseif ($cmd == self::RELOCATION) {
+ $atom = DFRN::relocate($owner, $owner['uid']);
+ } elseif ($followup) {
+ $msgitems = [$target_item];
+ $atom = DFRN::entries($msgitems, $owner);
+ } else {
+ if ($target_item['deleted']) {
+ $msgitems = [$target_item];
+ } else {
+ $msgitems = [];
+ foreach ($items as $item) {
+ // Only add the parent when we don't delete other items.
+ if (($target_item['id'] == $item['id']) || ($cmd != self::DELETION)) {
+ $item['entry:comment-allow'] = true;
+ $item['entry:cid'] = ($top_level ? $contact['id'] : 0);
+ $msgitems[] = $item;
+ }
+ }
+ }
+ $atom = DFRN::entries($msgitems, $owner);
+ }
+
+ Logger::debug('Notifier entry: ' . $contact['url'] . ' ' . ($target_item_id ?? 'relocation') . ' entry: ' . $atom);
+
+ $protocol = Post\DeliveryData::DFRN;
+
+ // We don't have a relationship with contacts on a public post.
+ // Se we transmit with the new method and via Diaspora as a fallback
+ if (!empty($items) && (($items[0]['uid'] == 0) || ($contact['uid'] == 0))) {
+ // Transmit in public if it's a relay post
+ $public_dfrn = ($contact['contact-type'] == Contact::TYPE_RELAY);
+
+ $deliver_status = DFRN::transmit($owner, $contact, $atom, $public_dfrn);
+
+ // We never spool failed relay deliveries
+ if ($public_dfrn) {
+ Logger::info('Relay delivery to ' . $contact['url'] . ' with guid ' . $target_item['guid'] . ' returns ' . $deliver_status);
+
+ if ($cmd == Delivery::POST) {
+ if (($deliver_status >= 200) && ($deliver_status <= 299)) {
+ Post\DeliveryData::incrementQueueDone($target_item['uri-id'], $protocol);
+
+ GServer::setProtocol($contact['gsid'] ?? 0, $protocol);
+ } else {
+ Post\DeliveryData::incrementQueueFailed($target_item['uri-id']);
+ }
+ }
+ return;
+ }
+
+ if ((($deliver_status < 200) || ($deliver_status > 299)) && (empty($server_protocol) || ($server_protocol == Post\DeliveryData::LEGACY_DFRN))) {
+ // Transmit via Diaspora if not possible via Friendica
+ self::deliverDiaspora($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup);
+ return;
+ }
+ } else {
+ // DFRN payload over Diaspora transport layer
+ $deliver_status = DFRN::transmit($owner, $contact, $atom);
+ }
+
+ Logger::info('DFRN Delivery', ['cmd' => $cmd, 'url' => $contact['url'], 'guid' => $target_item_id, 'return' => $deliver_status]);
+
+ if (($deliver_status >= 200) && ($deliver_status <= 299)) {
+ // We successfully delivered a message, the contact is alive
+ Contact::unmarkForArchival($contact);
+
+ GServer::setProtocol($contact['gsid'] ?? 0, $protocol);
+
+ if ($cmd == Delivery::POST) {
+ Post\DeliveryData::incrementQueueDone($target_item['uri-id'], $protocol);
+ }
+ } else {
+ // The message could not be delivered. We mark the contact as "dead"
+ Contact::markForArchival($contact);
+
+ Logger::info('Delivery failed: defer message', ['id' => $target_item_id]);
+ if (!Worker::defer() && $cmd == Delivery::POST) {
+ Post\DeliveryData::incrementQueueFailed($target_item['uri-id']);
+ }
+ }
+ }
+
+ /**
+ * Deliver content via Diaspora
+ *
+ * @param string $cmd Command
+ * @param array $contact Contact record of the receiver
+ * @param array $owner Owner record of the sender
+ * @param array $items Item record of the content and the parent
+ * @param array $target_item Item record of the content
+ * @param boolean $public_message Is the content public?
+ * @param boolean $top_level Is it a thread starter?
+ * @param boolean $followup Is it an answer to a remote post?
+ *
+ * @return void
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+ * @throws \ImagickException
+ */
+ private static function deliverDiaspora(string $cmd, array $contact, array $owner, array $items, array $target_item, bool $public_message, bool $top_level, bool $followup)
+ {
+ // We don't treat Forum posts as "wall-to-wall" to be able to post them via Diaspora
+ $walltowall = $top_level && ($owner['id'] != $items[0]['contact-id']) & ($owner['account-type'] != User::ACCOUNT_TYPE_COMMUNITY);
+
+ if ($public_message) {
+ $loc = 'public batch ' . $contact['batch'];
+ } else {
+ $loc = $contact['addr'];
+ }
+
+ Logger::notice('Deliver via Diaspora', ['target' => $target_item['id'], 'guid' => $target_item['guid'], 'to' => $loc]);
+
+ if (!DI::config()->get('system', 'diaspora_enabled')) {
+ return;
+ }
+
+ if ($cmd == self::MAIL) {
+ Diaspora::sendMail($target_item, $owner, $contact);
+ return;
+ }
+
+ if ($cmd == self::SUGGESTION) {
+ return;
+ }
+
+ if (!$contact['pubkey'] && !$public_message) {
+ return;
+ }
+
+ if ($cmd == self::RELOCATION) {
+ $deliver_status = Diaspora::sendAccountMigration($owner, $contact, $owner['uid']);
+ } elseif ($target_item['deleted'] && (($target_item['uri'] === $target_item['parent-uri']) || $followup)) {
+ // top-level retraction
+ Logger::notice('diaspora retract: ' . $loc);
+ $deliver_status = Diaspora::sendRetraction($target_item, $owner, $contact, $public_message);
+ } elseif ($followup) {
+ // send comments and likes to owner to relay
+ Logger::notice('diaspora followup: ' . $loc);
+ $deliver_status = Diaspora::sendFollowup($target_item, $owner, $contact, $public_message);
+ } elseif ($target_item['uri'] !== $target_item['parent-uri']) {
+ // we are the relay - send comments, likes and relayable_retractions to our conversants
+ Logger::notice('diaspora relay: ' . $loc);
+ $deliver_status = Diaspora::sendRelay($target_item, $owner, $contact, $public_message);
+ } elseif ($top_level && !$walltowall) {
+ // currently no workable solution for sending walltowall
+ Logger::notice('diaspora status: ' . $loc);
+ $deliver_status = Diaspora::sendStatus($target_item, $owner, $contact, $public_message);
+ } else {
+ Logger::warning('Unknown mode', ['command' => $cmd, 'target' => $loc]);
+ return;
+ }
+
+ if (($deliver_status >= 200) && ($deliver_status <= 299)) {
+ // We successfully delivered a message, the contact is alive
+ Contact::unmarkForArchival($contact);
+
+ GServer::setProtocol($contact['gsid'] ?? 0, Post\DeliveryData::DIASPORA);
+
+ if ($cmd == Delivery::POST) {
+ Post\DeliveryData::incrementQueueDone($target_item['uri-id'], Post\DeliveryData::DIASPORA);
+ }
+ } else {
+ // The message could not be delivered. We mark the contact as "dead"
+ Contact::markForArchival($contact);
+
+ // When it is delivered to the public endpoint, we do mark the relay contact for archival as well
+ if ($public_message) {
+ Relay::markForArchival($contact);
+ }
+
+ if (empty($contact['contact-type']) || ($contact['contact-type'] != Contact::TYPE_RELAY)) {
+ Logger::info('Delivery failed: defer message', ['id' => ($target_item['guid'] ?? '') ?: $target_item['id']]);
+ // defer message for redelivery
+ if (!Worker::defer() && $cmd == Delivery::POST) {
+ Post\DeliveryData::incrementQueueFailed($target_item['uri-id']);
+ }
+ } elseif ($cmd == Delivery::POST) {
+ Post\DeliveryData::incrementQueueFailed($target_item['uri-id']);
+ }
+ }
+ }
+
+ /**
+ * Deliver content via mail
+ *
+ * @param string $cmd Command
+ * @param array $contact Contact record of the receiver
+ * @param array $owner Owner record of the sender
+ * @param array $target_item Item record of the content
+ * @param array $thr_parent Item record of the direct parent in the thread
+ *
+ * @return void
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+ * @throws \ImagickException
+ */
+ private static function deliverMail(string $cmd, array $contact, array $owner, array $target_item, array $thr_parent)
+ {
+ if (DI::config()->get('system', 'imap_disabled')) {
+ return;
+ }
+
+ $addr = $contact['addr'];
+ if (!strlen($addr)) {
+ return;
+ }
+
+ if ($cmd != self::POST) {
+ return;
+ }
+
+ if ($target_item['verb'] != Activity::POST) {
+ return;
+ }
+
+ if (!empty($thr_parent['object'])) {
+ $data = json_decode($thr_parent['object'], true);
+ if (!empty($data['reply_to'])) {
+ $addr = $data['reply_to'][0]['mailbox'] . '@' . $data['reply_to'][0]['host'];
+ Logger::info('Use "reply-to" address of the thread parent', ['addr' => $addr]);
+ } elseif (!empty($data['from'])) {
+ $addr = $data['from'][0]['mailbox'] . '@' . $data['from'][0]['host'];
+ Logger::info('Use "from" address of the thread parent', ['addr' => $addr]);
+ }
+ }
+
+ $local_user = DBA::selectFirst('user', [], ['uid' => $owner['uid']]);
+ if (!DBA::isResult($local_user)) {
+ return;
+ }
+
+ Logger::info('About to deliver via mail', ['guid' => $target_item['guid'], 'to' => $addr]);
+
+ $reply_to = '';
+ $mailacct = DBA::selectFirst('mailacct', ['reply_to'], ['uid' => $owner['uid']]);
+ if (DBA::isResult($mailacct) && !empty($mailacct['reply_to'])) {
+ $reply_to = $mailacct['reply_to'];
+ }
+
+ $subject = ($target_item['title'] ? Email::encodeHeader($target_item['title'], 'UTF-8') : DI::l10n()->t("\x28no subject\x29"));
+
+ // only expose our real email address to true friends
+
+ if (($contact['rel'] == Contact::FRIEND) && !$contact['blocked']) {
+ if ($reply_to) {
+ $headers = 'From: ' . Email::encodeHeader($local_user['username'],'UTF-8') . ' <' . $reply_to . '>' . "\n";
+ $headers .= 'Sender: ' . $local_user['email'] . "\n";
+ } else {
+ $headers = 'From: ' . Email::encodeHeader($local_user['username'],'UTF-8') . ' <' . $local_user['email'] . '>' . "\n";
+ }
+ } else {
+ $sender = DI::config()->get('config', 'sender_email', 'noreply@' . DI::baseUrl()->getHostname());
+ $headers = 'From: '. Email::encodeHeader($local_user['username'], 'UTF-8') . ' <' . $sender . '>' . "\n";
+ }
+
+ $headers .= 'Message-Id: <' . Email::iri2msgid($target_item['uri']) . '>' . "\n";
+
+ if ($target_item['uri'] !== $target_item['parent-uri']) {
+ $headers .= 'References: <' . Email::iri2msgid($target_item['parent-uri']) . '>';
+
+ // Export more references on deeper nested threads
+ if (($target_item['thr-parent'] != '') && ($target_item['thr-parent'] != $target_item['parent-uri'])) {
+ $headers .= ' <' . Email::iri2msgid($target_item['thr-parent']) . '>';
+ }
+
+ $headers .= "\n";
+
+ if (empty($target_item['title'])) {
+ $condition = ['uri' => $target_item['parent-uri'], 'uid' => $owner['uid']];
+ $title = Post::selectFirst(['title'], $condition);
+
+ if (DBA::isResult($title) && ($title['title'] != '')) {
+ $subject = $title['title'];
+ } else {
+ $condition = ['parent-uri' => $target_item['parent-uri'], 'uid' => $owner['uid']];
+ $title = Post::selectFirst(['title'], $condition);
+
+ if (DBA::isResult($title) && ($title['title'] != '')) {
+ $subject = $title['title'];
+ }
+ }
+ }
+
+ if (strncasecmp($subject, 'RE:', 3)) {
+ $subject = 'Re: ' . $subject;
+ }
+ }
+
+ // Try to send email
+ $success = Email::send($addr, $subject, $headers, $target_item);
+
+ if ($success) {
+ // Success
+ Post\DeliveryData::incrementQueueDone($target_item['uri-id'], Post\DeliveryData::MAIL);
+ Logger::info('Delivered via mail', ['guid' => $target_item['guid'], 'to' => $addr, 'subject' => $subject]);
+ } else {
+ // Failed
+ Logger::warning('Delivery of mail has FAILED', ['to' => $addr, 'subject' => $subject, 'guid' => $target_item['guid']]);
+ }
+ }
+}
+++ /dev/null
-<?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\Worker;
-
-use Friendica\Contact\FriendSuggest\Collection\FriendSuggests;
-use Friendica\Contact\FriendSuggest\Exception\FriendSuggestNotFoundException;
-use Friendica\Core\Logger;
-use Friendica\Core\Protocol;
-use Friendica\Core\Worker;
-use Friendica\Database\DBA;
-use Friendica\DI;
-use Friendica\Model\Contact;
-use Friendica\Model\GServer;
-use Friendica\Model\Item;
-use Friendica\Model\Post;
-use Friendica\Model\User;
-use Friendica\Protocol\Activity;
-use Friendica\Protocol\DFRN;
-use Friendica\Protocol\Diaspora;
-use Friendica\Protocol\Email;
-use Friendica\Protocol\Relay;
-use Friendica\Util\Network;
-
-class Delivery
-{
- const MAIL = 'mail';
- const SUGGESTION = 'suggest';
- const RELOCATION = 'relocate';
- const DELETION = 'drop';
- const POST = 'wall-new';
- const REMOVAL = 'removeme';
- const PROFILEUPDATE = 'profileupdate';
-
- public static function execute(string $cmd, int $post_uriid, int $contact_id, int $sender_uid = 0)
- {
- Logger::info('Invoked', ['cmd' => $cmd, 'target' => $post_uriid, 'sender_uid' => $sender_uid, 'contact' => $contact_id]);
-
- $top_level = false;
- $followup = false;
- $public_message = false;
-
- $items = [];
- if ($cmd == self::MAIL) {
- $target_item = DBA::selectFirst('mail', [], ['id' => $post_uriid]);
- if (!DBA::isResult($target_item)) {
- return;
- }
- $uid = $target_item['uid'];
- } elseif ($cmd == self::SUGGESTION) {
- try {
- $target_item = DI::fsuggest()->selectOneById($post_uriid)->toArray();
- } catch (FriendSuggestNotFoundException $e) {
- DI::logger()->info('Cannot find FriendSuggestion', ['id' => $post_uriid]);
- return;
- }
- $uid = $target_item['uid'];
- } elseif ($cmd == self::RELOCATION) {
- $uid = $post_uriid;
- $target_item = [];
- } else {
- $item = Post::selectFirst(['id', 'parent'], ['uri-id' => $post_uriid, 'uid' => $sender_uid]);
- if (!DBA::isResult($item) || empty($item['parent'])) {
- Logger::warning('Post not found', ['uri-id' => $post_uriid, 'uid' => $sender_uid]);
- return;
- }
- $target_id = intval($item['id']);
- $parent_id = intval($item['parent']);
-
- $condition = ['id' => [$target_id, $parent_id], 'visible' => true];
- $params = ['order' => ['id']];
- $itemdata = Post::select(Item::DELIVER_FIELDLIST, $condition, $params);
-
- while ($item = Post::fetch($itemdata)) {
- if ($item['verb'] == Activity::ANNOUNCE) {
- continue;
- }
-
- if ($item['id'] == $parent_id) {
- $parent = $item;
- }
- if ($item['id'] == $target_id) {
- $target_item = $item;
- }
- $items[] = $item;
- }
- DBA::close($itemdata);
-
- if (empty($target_item)) {
- Logger::warning("No target item data. Quitting here.", ['id' => $target_id]);
- return;
- }
-
- if (empty($parent)) {
- Logger::warning('Parent ' . $parent_id . ' for item ' . $target_id . "wasn't found. Quitting here.");
- self::setFailedQueue($cmd, $target_item);
- return;
- }
-
- if (!empty($target_item['contact-uid'])) {
- $uid = $target_item['contact-uid'];
- } elseif (!empty($target_item['uid'])) {
- $uid = $target_item['uid'];
- } else {
- Logger::info('Only public users for item ' . $target_id);
- self::setFailedQueue($cmd, $target_item);
- return;
- }
-
- $condition = ['uri' => $target_item['thr-parent'], 'uid' => $target_item['uid']];
- $thr_parent = Post::selectFirst(['network', 'object'], $condition);
- if (!DBA::isResult($thr_parent)) {
- // Shouldn't happen. But when this does, we just take the parent as thread parent.
- // That's totally okay for what we use this variable here.
- $thr_parent = $parent;
- }
-
- if (!empty($contact_id) && Contact::isArchived($contact_id)) {
- Logger::info('Contact is archived', ['id' => $contact_id, 'cmd' => $cmd, 'item' => $target_item['id']]);
- self::setFailedQueue($cmd, $target_item);
- return;
- }
-
- // avoid race condition with deleting entries
- if ($items[0]['deleted']) {
- foreach ($items as $item) {
- $item['deleted'] = 1;
- }
- }
-
- $top_level = $target_item['gravity'] == Item::GRAVITY_PARENT;
-
- // This is IMPORTANT!!!!
-
- // We will only send a "notify owner to relay" or followup message if the referenced post
- // originated on our system by virtue of having our hostname somewhere
- // in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
- // if $parent['wall'] == 1 we will already have the parent message in our array
- // and we will relay the whole lot.
-
- $localhost = DI::baseUrl()->getHostname();
- if (strpos($localhost, ':')) {
- $localhost = substr($localhost, 0, strpos($localhost, ':'));
- }
- /**
- *
- * Be VERY CAREFUL if you make any changes to the following line. Seemingly innocuous changes
- * have been known to cause runaway conditions which affected several servers, along with
- * permissions issues.
- *
- */
-
- if (!$top_level && ($parent['wall'] == 0) && stristr($target_item['uri'], $localhost)) {
- Logger::info('Followup ' . $target_item["guid"]);
- // local followup to remote post
- $followup = true;
- }
-
- if (empty($parent['allow_cid'])
- && empty($parent['allow_gid'])
- && empty($parent['deny_cid'])
- && empty($parent['deny_gid'])
- && ($parent['private'] != Item::PRIVATE)) {
- $public_message = true;
- }
- }
-
- if (empty($items)) {
- Logger::warning('No delivery data', ['command' => $cmd, 'uri-id' => $post_uriid, 'cid' => $contact_id]);
- }
-
- $owner = User::getOwnerDataById($uid);
- if (!DBA::isResult($owner)) {
- self::setFailedQueue($cmd, $target_item);
- return;
- }
-
- // We don't deliver our items to blocked, archived or pending contacts, and not to ourselves either
- $contact = DBA::selectFirst('contact', [],
- ['id' => $contact_id, 'archive' => false, 'blocked' => false, 'pending' => false, 'self' => false]
- );
- if (!DBA::isResult($contact)) {
- self::setFailedQueue($cmd, $target_item);
- return;
- }
-
- if (Network::isUrlBlocked($contact['url'])) {
- self::setFailedQueue($cmd, $target_item);
- return;
- }
-
- $protocol = GServer::getProtocol($contact['gsid'] ?? 0);
-
- // Transmit via Diaspora if the thread had started as Diaspora post.
- // Also transmit via Diaspora if this is a direct answer to a Diaspora comment.
- // This is done since the uri wouldn't match (Diaspora doesn't transmit it)
- // Also transmit relayed posts from Diaspora contacts via Diaspora.
- if (($contact['network'] != Protocol::DIASPORA) && in_array(Protocol::DIASPORA, [$parent['network'] ?? '', $thr_parent['network'] ?? '', $target_item['network'] ?? ''])) {
- Logger::info('Enforcing the Diaspora protocol', ['id' => $contact['id'], 'network' => $contact['network'], 'parent' => $parent['network'], 'thread-parent' => $thr_parent['network'], 'post' => $target_item['network']]);
- $contact['network'] = Protocol::DIASPORA;
- }
-
- Logger::notice('Delivering', ['cmd' => $cmd, 'uri-id' => $post_uriid, 'followup' => $followup, 'network' => $contact['network']]);
-
- switch ($contact['network']) {
- case Protocol::DFRN:
- self::deliverDFRN($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup, $protocol);
- break;
-
- case Protocol::DIASPORA:
- self::deliverDiaspora($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup);
- break;
-
- case Protocol::MAIL:
- self::deliverMail($cmd, $contact, $owner, $target_item, $thr_parent);
- break;
-
- default:
- break;
- }
-
- return;
- }
-
- /**
- * Increased the "failed" counter in the item delivery data
- *
- * @param string $cmd Command
- * @param array $item Item array
- *
- * @return void
- */
- private static function setFailedQueue(string $cmd, array $item)
- {
- if ($cmd != Delivery::POST) {
- return;
- }
-
- Post\DeliveryData::incrementQueueFailed($item['uri-id'] ?? $item['id']);
- }
-
- /**
- * Deliver content via DFRN
- *
- * @param string $cmd Command
- * @param array $contact Contact record of the receiver
- * @param array $owner Owner record of the sender
- * @param array $items Item record of the content and the parent
- * @param array $target_item Item record of the content
- * @param boolean $public_message Is the content public?
- * @param boolean $top_level Is it a thread starter?
- * @param boolean $followup Is it an answer to a remote post?
- * @param int|null $server_protocol The protocol of the server
- *
- * @return void
- * @throws \Friendica\Network\HTTPException\InternalServerErrorException
- * @throws \ImagickException
- */
- private static function deliverDFRN(string $cmd, array $contact, array $owner, array $items, array $target_item, bool $public_message, bool $top_level, bool $followup, int $server_protocol = null)
- {
- $target_item_id = $target_item['guid'] ?? '' ?: $target_item['id'] ?? null;
-
- // Transmit Diaspora reshares via Diaspora if the Friendica contact support Diaspora
- if (Diaspora::getReshareDetails($target_item) && Diaspora::isSupportedByContactUrl($contact['addr'])) {
- Logger::info('Reshare will be transmitted via Diaspora', ['url' => $contact['url'], 'guid' => $target_item_id]);
- self::deliverDiaspora($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup);
- return;
- }
-
- Logger::info('Deliver ' . ($target_item_id ?? 'relocation') . ' via DFRN to ' . ($contact['addr'] ?? '' ?: $contact['url']));
-
- if ($cmd == self::MAIL) {
- $item = $target_item;
- $item['body'] = Item::fixPrivatePhotos($item['body'], $owner['uid'], null, $item['contact-id']);
- $atom = DFRN::mail($item, $owner);
- } elseif ($cmd == self::SUGGESTION) {
- $item = $target_item;
- $atom = DFRN::fsuggest($item, $owner);
- DI::fsuggest()->delete(new FriendSuggests([DI::fsuggest()->selectOneById($item['id'])]));
- } elseif ($cmd == self::RELOCATION) {
- $atom = DFRN::relocate($owner, $owner['uid']);
- } elseif ($followup) {
- $msgitems = [$target_item];
- $atom = DFRN::entries($msgitems, $owner);
- } else {
- if ($target_item['deleted']) {
- $msgitems = [$target_item];
- } else {
- $msgitems = [];
- foreach ($items as $item) {
- // Only add the parent when we don't delete other items.
- if (($target_item['id'] == $item['id']) || ($cmd != self::DELETION)) {
- $item['entry:comment-allow'] = true;
- $item['entry:cid'] = ($top_level ? $contact['id'] : 0);
- $msgitems[] = $item;
- }
- }
- }
- $atom = DFRN::entries($msgitems, $owner);
- }
-
- Logger::debug('Notifier entry: ' . $contact['url'] . ' ' . ($target_item_id ?? 'relocation') . ' entry: ' . $atom);
-
- $protocol = Post\DeliveryData::DFRN;
-
- // We don't have a relationship with contacts on a public post.
- // Se we transmit with the new method and via Diaspora as a fallback
- if (!empty($items) && (($items[0]['uid'] == 0) || ($contact['uid'] == 0))) {
- // Transmit in public if it's a relay post
- $public_dfrn = ($contact['contact-type'] == Contact::TYPE_RELAY);
-
- $deliver_status = DFRN::transmit($owner, $contact, $atom, $public_dfrn);
-
- // We never spool failed relay deliveries
- if ($public_dfrn) {
- Logger::info('Relay delivery to ' . $contact['url'] . ' with guid ' . $target_item['guid'] . ' returns ' . $deliver_status);
-
- if ($cmd == Delivery::POST) {
- if (($deliver_status >= 200) && ($deliver_status <= 299)) {
- Post\DeliveryData::incrementQueueDone($target_item['uri-id'], $protocol);
-
- GServer::setProtocol($contact['gsid'] ?? 0, $protocol);
- } else {
- Post\DeliveryData::incrementQueueFailed($target_item['uri-id']);
- }
- }
- return;
- }
-
- if ((($deliver_status < 200) || ($deliver_status > 299)) && (empty($server_protocol) || ($server_protocol == Post\DeliveryData::LEGACY_DFRN))) {
- // Transmit via Diaspora if not possible via Friendica
- self::deliverDiaspora($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup);
- return;
- }
- } else {
- // DFRN payload over Diaspora transport layer
- $deliver_status = DFRN::transmit($owner, $contact, $atom);
- }
-
- Logger::info('DFRN Delivery', ['cmd' => $cmd, 'url' => $contact['url'], 'guid' => $target_item_id, 'return' => $deliver_status]);
-
- if (($deliver_status >= 200) && ($deliver_status <= 299)) {
- // We successfully delivered a message, the contact is alive
- Contact::unmarkForArchival($contact);
-
- GServer::setProtocol($contact['gsid'] ?? 0, $protocol);
-
- if ($cmd == Delivery::POST) {
- Post\DeliveryData::incrementQueueDone($target_item['uri-id'], $protocol);
- }
- } else {
- // The message could not be delivered. We mark the contact as "dead"
- Contact::markForArchival($contact);
-
- Logger::info('Delivery failed: defer message', ['id' => $target_item_id]);
- if (!Worker::defer() && $cmd == Delivery::POST) {
- Post\DeliveryData::incrementQueueFailed($target_item['uri-id']);
- }
- }
- }
-
- /**
- * Deliver content via Diaspora
- *
- * @param string $cmd Command
- * @param array $contact Contact record of the receiver
- * @param array $owner Owner record of the sender
- * @param array $items Item record of the content and the parent
- * @param array $target_item Item record of the content
- * @param boolean $public_message Is the content public?
- * @param boolean $top_level Is it a thread starter?
- * @param boolean $followup Is it an answer to a remote post?
- *
- * @return void
- * @throws \Friendica\Network\HTTPException\InternalServerErrorException
- * @throws \ImagickException
- */
- private static function deliverDiaspora(string $cmd, array $contact, array $owner, array $items, array $target_item, bool $public_message, bool $top_level, bool $followup)
- {
- // We don't treat Forum posts as "wall-to-wall" to be able to post them via Diaspora
- $walltowall = $top_level && ($owner['id'] != $items[0]['contact-id']) & ($owner['account-type'] != User::ACCOUNT_TYPE_COMMUNITY);
-
- if ($public_message) {
- $loc = 'public batch ' . $contact['batch'];
- } else {
- $loc = $contact['addr'];
- }
-
- Logger::notice('Deliver via Diaspora', ['target' => $target_item['id'], 'guid' => $target_item['guid'], 'to' => $loc]);
-
- if (!DI::config()->get('system', 'diaspora_enabled')) {
- return;
- }
-
- if ($cmd == self::MAIL) {
- Diaspora::sendMail($target_item, $owner, $contact);
- return;
- }
-
- if ($cmd == self::SUGGESTION) {
- return;
- }
-
- if (!$contact['pubkey'] && !$public_message) {
- return;
- }
-
- if ($cmd == self::RELOCATION) {
- $deliver_status = Diaspora::sendAccountMigration($owner, $contact, $owner['uid']);
- } elseif ($target_item['deleted'] && (($target_item['uri'] === $target_item['parent-uri']) || $followup)) {
- // top-level retraction
- Logger::notice('diaspora retract: ' . $loc);
- $deliver_status = Diaspora::sendRetraction($target_item, $owner, $contact, $public_message);
- } elseif ($followup) {
- // send comments and likes to owner to relay
- Logger::notice('diaspora followup: ' . $loc);
- $deliver_status = Diaspora::sendFollowup($target_item, $owner, $contact, $public_message);
- } elseif ($target_item['uri'] !== $target_item['parent-uri']) {
- // we are the relay - send comments, likes and relayable_retractions to our conversants
- Logger::notice('diaspora relay: ' . $loc);
- $deliver_status = Diaspora::sendRelay($target_item, $owner, $contact, $public_message);
- } elseif ($top_level && !$walltowall) {
- // currently no workable solution for sending walltowall
- Logger::notice('diaspora status: ' . $loc);
- $deliver_status = Diaspora::sendStatus($target_item, $owner, $contact, $public_message);
- } else {
- Logger::warning('Unknown mode', ['command' => $cmd, 'target' => $loc]);
- return;
- }
-
- if (($deliver_status >= 200) && ($deliver_status <= 299)) {
- // We successfully delivered a message, the contact is alive
- Contact::unmarkForArchival($contact);
-
- GServer::setProtocol($contact['gsid'] ?? 0, Post\DeliveryData::DIASPORA);
-
- if ($cmd == Delivery::POST) {
- Post\DeliveryData::incrementQueueDone($target_item['uri-id'], Post\DeliveryData::DIASPORA);
- }
- } else {
- // The message could not be delivered. We mark the contact as "dead"
- Contact::markForArchival($contact);
-
- // When it is delivered to the public endpoint, we do mark the relay contact for archival as well
- if ($public_message) {
- Relay::markForArchival($contact);
- }
-
- if (empty($contact['contact-type']) || ($contact['contact-type'] != Contact::TYPE_RELAY)) {
- Logger::info('Delivery failed: defer message', ['id' => ($target_item['guid'] ?? '') ?: $target_item['id']]);
- // defer message for redelivery
- if (!Worker::defer() && $cmd == Delivery::POST) {
- Post\DeliveryData::incrementQueueFailed($target_item['uri-id']);
- }
- } elseif ($cmd == Delivery::POST) {
- Post\DeliveryData::incrementQueueFailed($target_item['uri-id']);
- }
- }
- }
-
- /**
- * Deliver content via mail
- *
- * @param string $cmd Command
- * @param array $contact Contact record of the receiver
- * @param array $owner Owner record of the sender
- * @param array $target_item Item record of the content
- * @param array $thr_parent Item record of the direct parent in the thread
- *
- * @return void
- * @throws \Friendica\Network\HTTPException\InternalServerErrorException
- * @throws \ImagickException
- */
- private static function deliverMail(string $cmd, array $contact, array $owner, array $target_item, array $thr_parent)
- {
- if (DI::config()->get('system', 'imap_disabled')) {
- return;
- }
-
- $addr = $contact['addr'];
- if (!strlen($addr)) {
- return;
- }
-
- if ($cmd != self::POST) {
- return;
- }
-
- if ($target_item['verb'] != Activity::POST) {
- return;
- }
-
- if (!empty($thr_parent['object'])) {
- $data = json_decode($thr_parent['object'], true);
- if (!empty($data['reply_to'])) {
- $addr = $data['reply_to'][0]['mailbox'] . '@' . $data['reply_to'][0]['host'];
- Logger::info('Use "reply-to" address of the thread parent', ['addr' => $addr]);
- } elseif (!empty($data['from'])) {
- $addr = $data['from'][0]['mailbox'] . '@' . $data['from'][0]['host'];
- Logger::info('Use "from" address of the thread parent', ['addr' => $addr]);
- }
- }
-
- $local_user = DBA::selectFirst('user', [], ['uid' => $owner['uid']]);
- if (!DBA::isResult($local_user)) {
- return;
- }
-
- Logger::info('About to deliver via mail', ['guid' => $target_item['guid'], 'to' => $addr]);
-
- $reply_to = '';
- $mailacct = DBA::selectFirst('mailacct', ['reply_to'], ['uid' => $owner['uid']]);
- if (DBA::isResult($mailacct) && !empty($mailacct['reply_to'])) {
- $reply_to = $mailacct['reply_to'];
- }
-
- $subject = ($target_item['title'] ? Email::encodeHeader($target_item['title'], 'UTF-8') : DI::l10n()->t("\x28no subject\x29"));
-
- // only expose our real email address to true friends
-
- if (($contact['rel'] == Contact::FRIEND) && !$contact['blocked']) {
- if ($reply_to) {
- $headers = 'From: ' . Email::encodeHeader($local_user['username'],'UTF-8') . ' <' . $reply_to . '>' . "\n";
- $headers .= 'Sender: ' . $local_user['email'] . "\n";
- } else {
- $headers = 'From: ' . Email::encodeHeader($local_user['username'],'UTF-8') . ' <' . $local_user['email'] . '>' . "\n";
- }
- } else {
- $sender = DI::config()->get('config', 'sender_email', 'noreply@' . DI::baseUrl()->getHostname());
- $headers = 'From: '. Email::encodeHeader($local_user['username'], 'UTF-8') . ' <' . $sender . '>' . "\n";
- }
-
- $headers .= 'Message-Id: <' . Email::iri2msgid($target_item['uri']) . '>' . "\n";
-
- if ($target_item['uri'] !== $target_item['parent-uri']) {
- $headers .= 'References: <' . Email::iri2msgid($target_item['parent-uri']) . '>';
-
- // Export more references on deeper nested threads
- if (($target_item['thr-parent'] != '') && ($target_item['thr-parent'] != $target_item['parent-uri'])) {
- $headers .= ' <' . Email::iri2msgid($target_item['thr-parent']) . '>';
- }
-
- $headers .= "\n";
-
- if (empty($target_item['title'])) {
- $condition = ['uri' => $target_item['parent-uri'], 'uid' => $owner['uid']];
- $title = Post::selectFirst(['title'], $condition);
-
- if (DBA::isResult($title) && ($title['title'] != '')) {
- $subject = $title['title'];
- } else {
- $condition = ['parent-uri' => $target_item['parent-uri'], 'uid' => $owner['uid']];
- $title = Post::selectFirst(['title'], $condition);
-
- if (DBA::isResult($title) && ($title['title'] != '')) {
- $subject = $title['title'];
- }
- }
- }
-
- if (strncasecmp($subject, 'RE:', 3)) {
- $subject = 'Re: ' . $subject;
- }
- }
-
- // Try to send email
- $success = Email::send($addr, $subject, $headers, $target_item);
-
- if ($success) {
- // Success
- Post\DeliveryData::incrementQueueDone($target_item['uri-id'], Post\DeliveryData::MAIL);
- Logger::info('Delivered via mail', ['guid' => $target_item['guid'], 'to' => $addr, 'subject' => $subject]);
- } else {
- // Failed
- Logger::warning('Delivery of mail has FAILED', ['to' => $addr, 'subject' => $subject, 'guid' => $target_item['guid']]);
- }
- }
-}
projects / friendica.git / commitdiff