Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @copyright Copyright (C) 2010-2021, 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\Model;
use Friendica\Content\Text\BBCode;
use Friendica\Content\Text\HTML;
use Friendica\Core\Hook;
use Friendica\Core\Logger;
use Friendica\Core\Protocol;
use Friendica\Core\Renderer;
use Friendica\Core\Session;
use Friendica\Core\System;
use Friendica\Model\Tag;
use Friendica\Core\Worker;
use Friendica\Database\DBA;
use Friendica\DI;
use Friendica\Model\Post;
use Friendica\Protocol\Activity;
use Friendica\Protocol\ActivityPub;
use Friendica\Protocol\Diaspora;
use Friendica\Util\DateTimeFormat;
use Friendica\Util\Map;
use Friendica\Util\Network;
use Friendica\Util\Proxy;
use Friendica\Util\Strings;
use Friendica\Worker\Delivery;
use LanguageDetection\Language;
class Item
{
// Posting types, inspired by https://www.w3.org/TR/activitystreams-vocabulary/#object-types
const PT_ARTICLE = 0;
const PT_NOTE = 1;
const PT_PAGE = 2;
const PT_IMAGE = 16;
const PT_AUDIO = 17;
const PT_VIDEO = 18;
const PT_DOCUMENT = 19;
const PT_EVENT = 32;
const PT_PERSONAL_NOTE = 128;
// Posting reasons (Why had a post been stored for a user?)
const PR_NONE = 0;
const PR_TAG = 64;
const PR_TO = 65;
const PR_CC = 66;
const PR_BTO = 67;
const PR_BCC = 68;
const PR_FOLLOWER = 69;
const PR_ANNOUNCEMENT = 70;
const PR_COMMENT = 71;
const PR_STORED = 72;
const PR_GLOBAL = 73;
const PR_RELAY = 74;
const PR_FETCHED = 75;
// Field list that is used to display the items
const DISPLAY_FIELDLIST = [
'uid', 'id', 'parent', 'guid', 'network', 'gravity',
'uri-id', 'uri', 'thr-parent-id', 'thr-parent', 'parent-uri-id', 'parent-uri',
'commented', 'created', 'edited', 'received', 'verb', 'object-type', 'postopts', 'plink',
'wall', 'private', 'starred', 'origin', 'parent-origin', 'title', 'body', 'language',
'content-warning', 'location', 'coord', 'app', 'rendered-hash', 'rendered-html', 'object',
'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'mention',
'author-id', 'author-link', 'author-name', 'author-avatar', 'author-network',
'owner-id', 'owner-link', 'owner-name', 'owner-avatar', 'owner-network', 'owner-contact-type',
'causer-id', 'causer-link', 'causer-name', 'causer-avatar', 'causer-contact-type', 'causer-network',
'contact-id', 'contact-uid', 'contact-link', 'contact-name', 'contact-avatar',
'writable', 'self', 'cid', 'alias',
'event-created', 'event-edited', 'event-start', 'event-finish',
'event-summary', 'event-desc', 'event-location', 'event-type',
'event-nofinish', 'event-adjust', 'event-ignore', 'event-id',
'delivery_queue_count', 'delivery_queue_done', 'delivery_queue_failed'
];
// Field list that is used to deliver items via the protocols
const DELIVER_FIELDLIST = ['uid', 'id', 'parent', 'uri-id', 'uri', 'thr-parent', 'parent-uri', 'guid',
'parent-guid', 'received', 'created', 'edited', 'verb', 'object-type', 'object', 'target',
'private', 'title', 'body', 'raw-body', 'location', 'coord', 'app',
'inform', 'deleted', 'extid', 'post-type', 'post-reason', 'gravity',
'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
'author-id', 'author-link', 'author-name', 'author-avatar', 'owner-id', 'owner-link', 'contact-uid',
'signed_text', 'network', 'wall', 'contact-id', 'plink', 'forum_mode', 'origin',
'thr-parent-id', 'parent-uri-id', 'postopts', 'pubmail',
'event-created', 'event-edited', 'event-start', 'event-finish',
'event-summary', 'event-desc', 'event-location', 'event-type',
'event-nofinish', 'event-adjust', 'event-ignore', 'event-id'];
// All fields in the item table
const ITEM_FIELDLIST = ['id', 'uid', 'parent', 'uri', 'parent-uri', 'thr-parent',
'guid', 'uri-id', 'parent-uri-id', 'thr-parent-id', 'vid',
'contact-id', 'wall', 'gravity', 'extid', 'psid',
'created', 'edited', 'commented', 'received', 'changed', 'verb',
'postopts', 'plink', 'resource-id', 'event-id', 'inform',
'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'post-type', 'post-reason',
'private', 'pubmail', 'visible', 'starred',
'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'global', 'network',
'title', 'content-warning', 'body', 'location', 'coord', 'app',
'rendered-hash', 'rendered-html', 'object-type', 'object', 'target-type', 'target',
'author-id', 'author-link', 'author-name', 'author-avatar', 'author-network',
'owner-id', 'owner-link', 'owner-name', 'owner-avatar', 'causer-id'];
// List of all verbs that don't need additional content data.
// Never reorder or remove entries from this list. Just add new ones at the end, if needed.
const ACTIVITIES = [
Activity::LIKE, Activity::DISLIKE,
Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE,
Activity::FOLLOW,
Activity::ANNOUNCE];
const PUBLIC = 0;
const PRIVATE = 1;
const UNLISTED = 2;
/**
* Update existing item entries
*
* @param array $fields The fields that are to be changed
* @param array $condition The condition for finding the item entries
*
* In the future we may have to change permissions as well.
* Then we had to add the user id as third parameter.
*
* A return value of "0" doesn't mean an error - but that 0 rows had been changed.
*
* @return integer|boolean number of affected rows - or "false" if there was an error
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function update(array $fields, array $condition)
{
if (empty($condition) || empty($fields)) {
return false;
}
if (isset($fields['extid'])) {
$fields['external-id'] = ItemURI::getIdByURI($fields['extid']);
}
if (!empty($fields['verb'])) {
$fields['vid'] = Verb::getID($fields['verb']);
}
$rows = Post::update($fields, $condition);
if (is_bool($rows)) {
return $rows;
}
// We only need to call the line by line update for specific fields
if (empty($fields['body']) && empty($fields['file']) &&
empty($fields['attach']) && empty($fields['edited'])) {
return $rows;
}
Logger::info('Updating per single row method', ['fields' => $fields, 'condition' => $condition]);
$items = Post::select(['id', 'origin', 'uri-id', 'uid'], $condition);
$notify_items = [];
while ($item = DBA::fetch($items)) {
if (!empty($fields['body'])) {
Post\Media::insertFromAttachmentData($item['uri-id'], $fields['body']);
$content_fields = ['raw-body' => trim($fields['raw-body'] ?? $fields['body'])];
// Remove all media attachments from the body and store them in the post-media table
// @todo On shared postings (Diaspora style and commented reshare) don't fetch content from the shared part
$content_fields['raw-body'] = Post\Media::insertFromBody($item['uri-id'], $content_fields['raw-body']);
$content_fields['raw-body'] = self::setHashtags($content_fields['raw-body']);
}
if (!empty($fields['file'])) {
Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], $fields['file']);
}
if (!empty($fields['attach'])) {
Post\Media::insertFromAttachment($item['uri-id'], $fields['attach']);
}
// We only need to notfiy others when it is an original entry from us.
// Only call the notifier when the item has some content relevant change.
if ($item['origin'] && in_array('edited', array_keys($fields))) {
$notify_items[] = $item['id'];
}
}
DBA::close($items);
foreach ($notify_items as $notify_item) {
$post = Post::selectFirst(['uri-id', 'uid'], ['id' => $notify_item]);
Worker::add(PRIORITY_HIGH, "Notifier", Delivery::POST, (int)$post['uri-id'], (int)$post['uid']);
}
return $rows;
}
/**
* Delete an item and notify others about it - if it was ours
*
* @param array $condition The condition for finding the item entries
* @param integer $priority Priority for the notification
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function markForDeletion($condition, $priority = PRIORITY_HIGH)
{
$items = Post::select(['id'], $condition);
while ($item = Post::fetch($items)) {
self::markForDeletionById($item['id'], $priority);
}
DBA::close($items);
}
/**
* Delete an item for an user and notify others about it - if it was ours
*
* @param array $condition The condition for finding the item entries
* @param integer $uid User who wants to delete this item
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function deleteForUser($condition, $uid)
{
if ($uid == 0) {
return;
}
$items = Post::select(['id', 'uid', 'uri-id'], $condition);
while ($item = Post::fetch($items)) {
if (in_array($item['uid'], [$uid, 0])) {
Post\User::update($item['uri-id'], $uid, ['hidden' => true], true);
Post\ThreadUser::update($item['uri-id'], $uid, ['hidden' => true], true);
}
if ($item['uid'] == $uid) {
self::markForDeletionById($item['id'], PRIORITY_HIGH);
} elseif ($item['uid'] != 0) {
Logger::notice('Wrong ownership. Not deleting item', ['id' => $item['id']]);
}
}
DBA::close($items);
}
/**
* Mark an item for deletion, delete related data and notify others about it - if it was ours
*
* @param integer $item_id
* @param integer $priority Priority for the notification
*
* @return boolean success
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function markForDeletionById($item_id, $priority = PRIORITY_HIGH)
{
Logger::info('Mark item for deletion by id', ['id' => $item_id, 'callstack' => System::callstack()]);
// locate item to be deleted
$fields = ['id', 'uri', 'uri-id', 'uid', 'parent', 'parent-uri-id', 'origin',
'deleted', 'resource-id', 'event-id',
'verb', 'object-type', 'object', 'target', 'contact-id', 'psid', 'gravity'];
$item = Post::selectFirst($fields, ['id' => $item_id]);
if (!DBA::isResult($item)) {
Logger::info('Item not found.', ['id' => $item_id]);
return false;
}
if ($item['deleted']) {
Logger::info('Item has already been marked for deletion.', ['id' => $item_id]);
return false;
}
$parent = Post::selectFirst(['origin'], ['id' => $item['parent']]);
if (!DBA::isResult($parent)) {
$parent = ['origin' => false];
}
// clean up categories and tags so they don't end up as orphans
Post\Category::deleteByURIId($item['uri-id'], $item['uid']);
/*
* If item is a link to a photo resource, nuke all the associated photos
* (visitors will not have photo resources)
* This only applies to photos uploaded from the photos page. Photos inserted into a post do not
* generate a resource-id and therefore aren't intimately linked to the item.
*/
/// @TODO: this should first check if photo is used elsewhere
if (strlen($item['resource-id'])) {
Photo::delete(['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
}
// If item is a link to an event, delete the event.
if (intval($item['event-id'])) {
Event::delete($item['event-id']);
}
// If item has attachments, drop them
$attachments = Post\Media::getByURIId($item['uri-id'], [Post\Media::DOCUMENT]);
foreach($attachments as $attachment) {
if (preg_match("|attach/(\d+)|", $attachment['url'], $matches)) {
Attach::delete(['id' => $matches[1], 'uid' => $item['uid']]);
}
}
// Set the item to "deleted"
$item_fields = ['deleted' => true, 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()];
Post::update($item_fields, ['id' => $item['id']]);
Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], '');
if (!Post::exists(["`uri-id` = ? AND `uid` != 0 AND NOT `deleted`", $item['uri-id']])) {
self::markForDeletion(['uri-id' => $item['uri-id'], 'uid' => 0, 'deleted' => false], $priority);
}
Post\DeliveryData::delete($item['uri-id']);
// If it's the parent of a comment thread, kill all the kids
if ($item['gravity'] == GRAVITY_PARENT) {
self::markForDeletion(['parent' => $item['parent'], 'deleted' => false], $priority);
}
// Is it our comment and/or our thread?
if (($item['origin'] || $parent['origin']) && ($item['uid'] != 0)) {
// When we delete the original post we will delete all existing copies on the server as well
self::markForDeletion(['uri-id' => $item['uri-id'], 'deleted' => false], $priority);
// send the notification upstream/downstream
if ($priority) {
Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", Delivery::DELETION, (int)$item['uri-id'], (int)$item['uid']);
}
} elseif ($item['uid'] != 0) {
Post\User::update($item['uri-id'], $item['uid'], ['hidden' => true]);
Post\ThreadUser::update($item['uri-id'], $item['uid'], ['hidden' => true]);
}
Logger::info('Item has been marked for deletion.', ['id' => $item_id]);
return true;
}
private static function guid($item, $notify)
{
if (!empty($item['guid'])) {
return Strings::escapeTags(trim($item['guid']));
}
if ($notify) {
// We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
// We add the hash of our own host because our host is the original creator of the post.
$prefix_host = DI::baseUrl()->getHostname();
} else {
$prefix_host = '';
// We are only storing the post so we create a GUID from the original hostname.
if (!empty($item['author-link'])) {
$parsed = parse_url($item['author-link']);
if (!empty($parsed['host'])) {
$prefix_host = $parsed['host'];
}
}
if (empty($prefix_host) && !empty($item['plink'])) {
$parsed = parse_url($item['plink']);
if (!empty($parsed['host'])) {
$prefix_host = $parsed['host'];
}
}
if (empty($prefix_host) && !empty($item['uri'])) {
$parsed = parse_url($item['uri']);
if (!empty($parsed['host'])) {
$prefix_host = $parsed['host'];
}
}
// Is it in the format data@host.tld? - Used for mail contacts
if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
$mailparts = explode('@', $item['author-link']);
$prefix_host = array_pop($mailparts);
}
}
if (!empty($item['plink'])) {
$guid = self::guidFromUri($item['plink'], $prefix_host);
} elseif (!empty($item['uri'])) {
$guid = self::guidFromUri($item['uri'], $prefix_host);
} else {
$guid = System::createUUID(hash('crc32', $prefix_host));
}
return $guid;
}
private static function contactId($item)
{
if (!empty($item['contact-id']) && DBA::exists('contact', ['self' => true, 'id' => $item['contact-id']])) {
return $item['contact-id'];
} elseif (($item['gravity'] == GRAVITY_PARENT) && !empty($item['uid']) && !empty($item['contact-id']) && Contact::isSharing($item['contact-id'], $item['uid'])) {
return $item['contact-id'];
} elseif (!empty($item['uid']) && !Contact::isSharing($item['author-id'], $item['uid'])) {
return $item['author-id'];
} elseif (!empty($item['contact-id'])) {
return $item['contact-id'];
} else {
$contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
if (!empty($contact_id)) {
return $contact_id;
}
}
return $item['author-id'];
}
/**
* Write an item array into a spool file to be inserted later.
* This command is called whenever there are issues storing an item.
*
* @param array $item The item fields that are to be inserted
* @throws \Exception
*/
private static function spool($orig_item)
{
// Now we store the data in the spool directory
// We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
$file = 'item-' . round(microtime(true) * 10000) . '-' . mt_rand() . '.msg';
$spoolpath = get_spoolpath();
if ($spoolpath != "") {
$spool = $spoolpath . '/' . $file;
file_put_contents($spool, json_encode($orig_item));
Logger::warning("Item wasn't stored - Item was spooled into file", ['file' => $file]);
}
}
/**
* Check if the item array is a duplicate
*
* @param array $item
* @return boolean is it a duplicate?
*/
private static function isDuplicate(array $item)
{
// Checking if there is already an item with the same guid
$condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
if (Post::exists($condition)) {
Logger::notice('Found already existing item', [
'guid' => $item['guid'],
'uid' => $item['uid'],
'network' => $item['network']
]);
return true;
}
$condition = ['uri-id' => $item['uri-id'], 'uid' => $item['uid'],
'network' => [$item['network'], Protocol::DFRN]];
if (Post::exists($condition)) {
Logger::notice('duplicated item with the same uri found.', $item);
return true;
}
// On Friendica and Diaspora the GUID is unique
if (in_array($item['network'], [Protocol::DFRN, Protocol::DIASPORA])) {
$condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
if (Post::exists($condition)) {
Logger::notice('duplicated item with the same guid found.', $item);
return true;
}
} elseif ($item['network'] == Protocol::OSTATUS) {
// Check for an existing post with the same content. There seems to be a problem with OStatus.
$condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
$item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
if (Post::exists($condition)) {
Logger::notice('duplicated item with the same body found.', $item);
return true;
}
}
/*
* Check for already added items.
* There is a timing issue here that sometimes creates double postings.
* An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
*/
if (($item['uid'] == 0) && Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
Logger::notice('Global item already stored.', ['uri-id' => $item['uri-id'], 'network' => $item['network']]);
return true;
}
return false;
}
/**
* Check if the item array is valid
*
* @param array $item
* @return boolean item is valid
*/
public static function isValid(array $item)
{
// When there is no content then we don't post it
if (($item['body'] . $item['title'] == '') && !Post\Media::existsByURIId($item['uri-id'])) {
Logger::notice('No body, no title.');
return false;
}
if (!empty($item['uid'])) {
$owner = User::getOwnerDataById($item['uid'], false);
if (!$owner) {
Logger::notice('Missing item user owner data', ['uid' => $item['uid']]);
return false;
}
if ($owner['account_expired'] || $owner['account_removed']) {
Logger::notice('Item user has been deleted/expired/removed', ['uid' => $item['uid'], 'deleted' => $owner['deleted'], 'account_expired' => $owner['account_expired'], 'account_removed' => $owner['account_removed']]);
return false;
}
}
if (!empty($item['author-id']) && Contact::isBlocked($item['author-id'])) {
Logger::notice('Author is blocked node-wide', ['author-link' => $item['author-link'], 'item-uri' => $item['uri']]);
return false;
}
if (!empty($item['author-link']) && Network::isUrlBlocked($item['author-link'])) {
Logger::notice('Author server is blocked', ['author-link' => $item['author-link'], 'item-uri' => $item['uri']]);
return false;
}
if (!empty($item['owner-id']) && Contact::isBlocked($item['owner-id'])) {
Logger::notice('Owner is blocked node-wide', ['owner-link' => $item['owner-link'], 'item-uri' => $item['uri']]);
return false;
}
if (!empty($item['owner-link']) && Network::isUrlBlocked($item['owner-link'])) {
Logger::notice('Owner server is blocked', ['owner-link' => $item['owner-link'], 'item-uri' => $item['uri']]);
return false;
}
if (!empty($item['uid']) && !self::isAllowedByUser($item, $item['uid'])) {
return false;
}
if ($item['verb'] == Activity::FOLLOW) {
if (!$item['origin'] && ($item['author-id'] == Contact::getPublicIdByUserId($item['uid']))) {
// Our own follow request can be relayed to us. We don't store it to avoid notification chaos.
Logger::info("Follow: Don't store not origin follow request", ['parent-uri' => $item['parent-uri']]);
return false;
}
$condition = ['verb' => Activity::FOLLOW, 'uid' => $item['uid'],
'parent-uri' => $item['parent-uri'], 'author-id' => $item['author-id']];
if (Post::exists($condition)) {
// It happens that we receive multiple follow requests by the same author - we only store one.
Logger::info('Follow: Found existing follow request from author', ['author-id' => $item['author-id'], 'parent-uri' => $item['parent-uri']]);
return false;
}
}
return true;
}
/**
* Check if the item array is too old
*
* @param array $item
* @return boolean item is too old
*/
public static function isTooOld(array $item)
{
// check for create date and expire time
$expire_interval = DI::config()->get('system', 'dbclean-expire-days', 0);
$user = DBA::selectFirst('user', ['expire'], ['uid' => $item['uid']]);
if (DBA::isResult($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
$expire_interval = $user['expire'];
}
if (($expire_interval > 0) && !empty($item['created'])) {
$expire_date = time() - ($expire_interval * 86400);
$created_date = strtotime($item['created']);
if ($created_date < $expire_date) {
Logger::notice('Item created before expiration interval.', [
'created' => date('c', $created_date),
'expired' => date('c', $expire_date),
'$item' => $item
]);
return true;
}
}
return false;
}
/**
* Return the id of the given item array if it has been stored before
*
* @param array $item
* @return integer item id
*/
private static function getDuplicateID(array $item)
{
if (empty($item['network']) || in_array($item['network'], Protocol::FEDERATED)) {
$condition = ["`uri-id` = ? AND `uid` = ? AND `network` IN (?, ?, ?, ?)",
$item['uri-id'], $item['uid'],
Protocol::ACTIVITYPUB, Protocol::DIASPORA, Protocol::DFRN, Protocol::OSTATUS];
$existing = Post::selectFirst(['id', 'network'], $condition);
if (DBA::isResult($existing)) {
// We only log the entries with a different user id than 0. Otherwise we would have too many false positives
if ($item['uid'] != 0) {
Logger::notice('Item already existed for user', [
'uri-id' => $item['uri-id'],
'uid' => $item['uid'],
'network' => $item['network'],
'existing_id' => $existing["id"],
'existing_network' => $existing["network"]
]);
}
return $existing["id"];
}
}
return 0;
}
/**
* Fetch top-level parent data for the given item array
*
* @param array $item
* @return array item array with parent data
* @throws \Exception
*/
private static function getTopLevelParent(array $item)
{
$fields = ['uid', 'uri', 'parent-uri', 'id', 'deleted',
'uri-id', 'parent-uri-id',
'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
'wall', 'private', 'forum_mode', 'origin', 'author-id'];
$condition = ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']];
$params = ['order' => ['id' => false]];
$parent = Post::selectFirst($fields, $condition, $params);
if (!DBA::isResult($parent)) {
Logger::notice('item parent was not found - ignoring item', ['thr-parent-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
return [];
}
if ($parent['uri-id'] == $parent['parent-uri-id']) {
return $parent;
}
$condition = ['uri-id' => $parent['parent-uri-id'],
'parent-uri-id' => $parent['parent-uri-id'],
'uid' => $parent['uid']];
$params = ['order' => ['id' => false]];
$toplevel_parent = Post::selectFirst($fields, $condition, $params);
if (!DBA::isResult($toplevel_parent)) {
Logger::notice('item top level parent was not found - ignoring item', ['parent-uri-id' => $parent['parent-uri-id'], 'uid' => $parent['uid']]);
return [];
}
return $toplevel_parent;
}
/**
* Get the gravity for the given item array
*
* @param array $item
* @return integer gravity
*/
private static function getGravity(array $item)
{
$activity = DI::activity();
if (isset($item['gravity'])) {
return intval($item['gravity']);
} elseif ($item['parent-uri-id'] === $item['uri-id']) {
return GRAVITY_PARENT;
} elseif ($activity->match($item['verb'], Activity::POST)) {
return GRAVITY_COMMENT;
} elseif ($activity->match($item['verb'], Activity::FOLLOW)) {
return GRAVITY_ACTIVITY;
} elseif ($activity->match($item['verb'], Activity::ANNOUNCE)) {
return GRAVITY_ACTIVITY;
}
Logger::info('Unknown gravity for verb', ['verb' => $item['verb']]);
return GRAVITY_UNKNOWN; // Should not happen
}
public static function insert($item, $notify = false, $dontcache = false)
{
$orig_item = $item;
$priority = PRIORITY_HIGH;
// If it is a posting where users should get notifications, then define it as wall posting
if ($notify) {
$item['wall'] = 1;
$item['origin'] = 1;
$item['network'] = Protocol::DFRN;
$item['protocol'] = Conversation::PARCEL_DIRECT;
$item['direction'] = Conversation::PUSH;
if (in_array($notify, PRIORITIES)) {
$priority = $notify;
}
} else {
$item['network'] = trim(($item['network'] ?? '') ?: Protocol::PHANTOM);
}
$uid = intval($item['uid']);
$item['guid'] = self::guid($item, $notify);
$item['uri'] = substr(trim($item['uri'] ?? '') ?: self::newURI($item['uid'], $item['guid']), 0, 255);
// Store URI data
$item['uri-id'] = ItemURI::insert(['uri' => $item['uri'], 'guid' => $item['guid']]);
// Backward compatibility: parent-uri used to be the direct parent uri.
// If it is provided without a thr-parent, it probably is the old behavior.
$item['thr-parent'] = trim($item['thr-parent'] ?? $item['parent-uri'] ?? $item['uri']);
$item['parent-uri'] = $item['thr-parent'];
$item['thr-parent-id'] = $item['parent-uri-id'] = ItemURI::getIdByURI($item['thr-parent']);
// Store conversation data
$item = Conversation::insert($item);
/*
* Do we already have this item?
* We have to check several networks since Friendica posts could be repeated
* via OStatus (maybe Diasporsa as well)
*/
$duplicate = self::getDuplicateID($item);
if ($duplicate) {
return $duplicate;
}
// Additional duplicate checks
/// @todo Check why the first duplication check returns the item number and the second a 0
if (self::isDuplicate($item)) {
return 0;
}
if (!isset($item['post-type'])) {
$item['post-type'] = empty($item['title']) ? self::PT_NOTE : self::PT_ARTICLE;
}
$item['wall'] = intval($item['wall'] ?? 0);
$item['extid'] = trim($item['extid'] ?? '');
$item['author-name'] = trim($item['author-name'] ?? '');
$item['author-link'] = trim($item['author-link'] ?? '');
$item['author-avatar'] = trim($item['author-avatar'] ?? '');
$item['owner-name'] = trim($item['owner-name'] ?? '');
$item['owner-link'] = trim($item['owner-link'] ?? '');
$item['owner-avatar'] = trim($item['owner-avatar'] ?? '');
$item['received'] = (isset($item['received']) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
$item['created'] = (isset($item['created']) ? DateTimeFormat::utc($item['created']) : $item['received']);
$item['edited'] = (isset($item['edited']) ? DateTimeFormat::utc($item['edited']) : $item['created']);
$item['changed'] = (isset($item['changed']) ? DateTimeFormat::utc($item['changed']) : $item['created']);
$item['commented'] = (isset($item['commented']) ? DateTimeFormat::utc($item['commented']) : $item['created']);
$item['title'] = substr(trim($item['title'] ?? ''), 0, 255);
$item['location'] = trim($item['location'] ?? '');
$item['coord'] = trim($item['coord'] ?? '');
$item['visible'] = (isset($item['visible']) ? intval($item['visible']) : 1);
$item['deleted'] = 0;
$item['verb'] = trim($item['verb'] ?? '');
$item['object-type'] = trim($item['object-type'] ?? '');
$item['object'] = trim($item['object'] ?? '');
$item['target-type'] = trim($item['target-type'] ?? '');
$item['target'] = trim($item['target'] ?? '');
$item['plink'] = substr(trim($item['plink'] ?? ''), 0, 255);
$item['allow_cid'] = trim($item['allow_cid'] ?? '');
$item['allow_gid'] = trim($item['allow_gid'] ?? '');
$item['deny_cid'] = trim($item['deny_cid'] ?? '');
$item['deny_gid'] = trim($item['deny_gid'] ?? '');
$item['private'] = intval($item['private'] ?? self::PUBLIC);
$item['body'] = trim($item['body'] ?? '');
$item['raw-body'] = trim($item['raw-body'] ?? $item['body']);
$item['app'] = trim($item['app'] ?? '');
$item['origin'] = intval($item['origin'] ?? 0);
$item['postopts'] = trim($item['postopts'] ?? '');
$item['resource-id'] = trim($item['resource-id'] ?? '');
$item['event-id'] = intval($item['event-id'] ?? 0);
$item['inform'] = trim($item['inform'] ?? '');
$item['file'] = trim($item['file'] ?? '');
// Items cannot be stored before they happen ...
if ($item['created'] > DateTimeFormat::utcNow()) {
$item['created'] = DateTimeFormat::utcNow();
}
// We haven't invented time travel by now.
if ($item['edited'] > DateTimeFormat::utcNow()) {
$item['edited'] = DateTimeFormat::utcNow();
}
$item['plink'] = ($item['plink'] ?? '') ?: DI::baseUrl() . '/display/' . urlencode($item['guid']);
$item['gravity'] = self::getGravity($item);
$item['language'] = self::getLanguage($item);
$default = ['url' => $item['author-link'], 'name' => $item['author-name'],
'photo' => $item['author-avatar'], 'network' => $item['network']];
$item['author-id'] = ($item['author-id'] ?? 0) ?: Contact::getIdForURL($item['author-link'], 0, null, $default);
$default = ['url' => $item['owner-link'], 'name' => $item['owner-name'],
'photo' => $item['owner-avatar'], 'network' => $item['network']];
$item['owner-id'] = ($item['owner-id'] ?? 0) ?: Contact::getIdForURL($item['owner-link'], 0, null, $default);
$actor = ($item['gravity'] == GRAVITY_PARENT) ? $item['owner-id'] : $item['author-id'];
if (!$item['origin'] && ($item['uid'] != 0) && Contact::isSharing($actor, $item['uid'])) {
$item['post-reason'] = self::PR_FOLLOWER;
}
// Ensure that there is an avatar cache
Contact::checkAvatarCache($item['author-id']);
Contact::checkAvatarCache($item['owner-id']);
// The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
$item["contact-id"] = self::contactId($item);
if (!empty($item['direction']) && in_array($item['direction'], [Conversation::PUSH, Conversation::RELAY]) &&
self::isTooOld($item)) {
Logger::info('Item is too old', ['item' => $item]);
return 0;
}
if (!self::isValid($item)) {
return 0;
}
if ($item['gravity'] !== GRAVITY_PARENT) {
$toplevel_parent = self::getTopLevelParent($item);
if (empty($toplevel_parent)) {
return 0;
}
// If the thread originated from this node, we check the permission against the thread starter
$condition = ['uri-id' => $toplevel_parent['uri-id'], 'wall' => true];
$localTopLevelParent = Post::selectFirst(['uid'], $condition);
if (!empty($localTopLevelParent['uid']) && !self::isAllowedByUser($item, $localTopLevelParent['uid'])) {
return 0;
}
$parent_id = $toplevel_parent['id'];
$item['parent-uri'] = $toplevel_parent['uri'];
$item['parent-uri-id'] = $toplevel_parent['uri-id'];
$item['deleted'] = $toplevel_parent['deleted'];
$item['allow_cid'] = $toplevel_parent['allow_cid'];
$item['allow_gid'] = $toplevel_parent['allow_gid'];
$item['deny_cid'] = $toplevel_parent['deny_cid'];
$item['deny_gid'] = $toplevel_parent['deny_gid'];
$parent_origin = $toplevel_parent['origin'];
// Don't federate received participation messages
if ($item['verb'] != Activity::FOLLOW) {
$item['wall'] = $toplevel_parent['wall'];
} else {
$item['wall'] = false;
// Participations are technical messages, so they are set to "seen" automatically
$item['unseen'] = false;
}
/*
* If the parent is private, force privacy for the entire conversation
* This differs from the above settings as it subtly allows comments from
* email correspondents to be private even if the overall thread is not.
*/
if ($toplevel_parent['private']) {
$item['private'] = $toplevel_parent['private'];
}
/*
* Edge case. We host a public forum that was originally posted to privately.
* The original author commented, but as this is a comment, the permissions
* weren't fixed up so it will still show the comment as private unless we fix it here.
*/
if ((intval($toplevel_parent['forum_mode']) == 1) && ($toplevel_parent['private'] != self::PUBLIC)) {
$item['private'] = self::PUBLIC;
}
// If its a post that originated here then tag the thread as "mention"
if ($item['origin'] && $item['uid']) {
DBA::update('post-thread-user', ['mention' => true], ['uri-id' => $item['parent-uri-id'], 'uid' => $item['uid']]);
Logger::info('tagged thread as mention', ['parent' => $parent_id, 'parent-uri-id' => $item['parent-uri-id'], 'uid' => $item['uid']]);
}
// Update the contact relations
Contact\Relation::store($toplevel_parent['author-id'], $item['author-id'], $item['created']);
} else {
$parent_id = 0;
$parent_origin = $item['origin'];
}
$item['parent-uri-id'] = ItemURI::getIdByURI($item['parent-uri']);
$item['thr-parent-id'] = ItemURI::getIdByURI($item['thr-parent']);
// Is this item available in the global items (with uid=0)?
if ($item["uid"] == 0) {
$item["global"] = true;
// Set the global flag on all items if this was a global item entry
Post::update(['global' => true], ['uri-id' => $item['uri-id']]);
} else {
$item['global'] = Post::exists(['uid' => 0, 'uri-id' => $item['uri-id']]);
}
// ACL settings
if (!empty($item["allow_cid"] . $item["allow_gid"] . $item["deny_cid"] . $item["deny_gid"])) {
$item["private"] = self::PRIVATE;
}
if ($notify) {
$item['edit'] = false;
$item['parent'] = $parent_id;
Hook::callAll('post_local', $item);
} else {
Hook::callAll('post_remote', $item);
}
if (!empty($item['cancel'])) {
Logger::log('post cancelled by addon.');
return 0;
}
if (empty($item['vid']) && !empty($item['verb'])) {
$item['vid'] = Verb::getID($item['verb']);
}
// Creates or assigns the permission set
$item['psid'] = PermissionSet::getIdFromACL(
$item['uid'],
$item['allow_cid'],
$item['allow_gid'],
$item['deny_cid'],
$item['deny_gid']
);
if (!empty($item['extid'])) {
$item['external-id'] = ItemURI::getIdByURI($item['extid']);
}
if ($item['verb'] == Activity::ANNOUNCE) {
self::setOwnerforResharedItem($item);
}
if (isset($item['attachments'])) {
foreach ($item['attachments'] as $attachment) {
$attachment['uri-id'] = $item['uri-id'];
Post\Media::insert($attachment);
}
unset($item['attachments']);
}
// Remove all media attachments from the body and store them in the post-media table
$item['raw-body'] = Post\Media::insertFromBody($item['uri-id'], $item['raw-body']);
$item['raw-body'] = self::setHashtags($item['raw-body']);
Post\Media::insertFromAttachmentData($item['uri-id'], $item['body']);
// Check for hashtags in the body and repair or add hashtag links
$item['body'] = self::setHashtags($item['body']);
// Fill the cache field
self::putInCache($item);
if (stristr($item['verb'], Activity::POKE)) {
$notify_type = Delivery::POKE;
} else {
$notify_type = Delivery::POST;
}
// Filling item related side tables
if (!empty($item['attach'])) {
Post\Media::insertFromAttachment($item['uri-id'], $item['attach']);
}
if (empty($item['event-id'])) {
unset($item['event-id']);
}
if (empty($item['causer-id'])) {
unset($item['causer-id']);
}
Post::insert($item['uri-id'], $item);
if ($item['gravity'] == GRAVITY_PARENT) {
Post\Thread::insert($item['uri-id'], $item);
}
if (!in_array($item['verb'], self::ACTIVITIES)) {
Post\Content::insert($item['uri-id'], $item);
}
// Diaspora signature
if (!empty($item['diaspora_signed_text'])) {
DBA::replace('diaspora-interaction', ['uri-id' => $item['uri-id'], 'interaction' => $item['diaspora_signed_text']]);
}
// Attached file links
if (!empty($item['file'])) {
Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], $item['file']);
}
// Delivery relevant data
$delivery_data = Post\DeliveryData::extractFields($item);
if (!empty($item['origin']) || !empty($item['wall']) || !empty($delivery_data['postopts']) || !empty($delivery_data['inform'])) {
Post\DeliveryData::insert($item['uri-id'], $delivery_data);
}
// Store tags from the body if this hadn't been handled previously in the protocol classes
if (!Tag::existsForPost($item['uri-id'])) {
Tag::storeFromBody($item['uri-id'], $item['body']);
}
$condition = ['uri-id' => $item['uri-id'], 'uid' => $item['uid']];
if (Post::exists($condition)) {
Logger::notice('Item is already inserted - aborting', $condition);
return 0;
}
$post_user_id = Post\User::insert($item['uri-id'], $item['uid'], $item);
if (!$post_user_id) {
Logger::notice('Post-User is already inserted - aborting', ['uid' => $item['uid'], 'uri-id' => $item['uri-id']]);
return 0;
}
if ($item['gravity'] == GRAVITY_PARENT) {
$item['post-user-id'] = $post_user_id;
Post\ThreadUser::insert($item['uri-id'], $item['uid'], $item);
}
Logger::notice('created item', ['post-id' => $post_user_id, 'uid' => $item['uid'], 'network' => $item['network'], 'uri-id' => $item['uri-id'], 'guid' => $item['guid']]);
$posted_item = Post::selectFirst(self::ITEM_FIELDLIST, ['post-user-id' => $post_user_id]);
if (!DBA::isResult($posted_item)) {
// On failure store the data into a spool file so that the "SpoolPost" worker can try again later.
Logger::warning('Could not store item. it will be spooled', ['id' => $post_user_id]);
self::spool($orig_item);
return 0;
}
// update the commented timestamp on the parent
if (DI::config()->get('system', 'like_no_comment')) {
// Update when it is a comment
$update_commented = in_array($posted_item['gravity'], [GRAVITY_PARENT, GRAVITY_COMMENT]);
} else {
// Update when it isn't a follow or tag verb
$update_commented = !in_array($posted_item['verb'], [Activity::FOLLOW, Activity::TAG]);
}
if ($update_commented) {
$fields = ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()];
} else {
$fields = ['changed' => DateTimeFormat::utcNow()];
}
Post::update($fields, ['uri-id' => $posted_item['parent-uri-id'], 'uid' => $posted_item['uid']]);
// In that function we check if this is a forum post. Additionally we delete the item under certain circumstances
if (self::tagDeliver($posted_item['uid'], $post_user_id)) {
// Get the user information for the logging
$user = User::getById($uid);
Logger::notice('Item had been deleted', ['id' => $post_user_id, 'user' => $uid, 'account-type' => $user['account-type']]);
return 0;
}
if (!$dontcache) {
if ($notify) {
Hook::callAll('post_local_end', $posted_item);
} else {
Hook::callAll('post_remote_end', $posted_item);
}
}
if ($posted_item['gravity'] === GRAVITY_PARENT) {
self::addShadow($post_user_id);
} else {
self::addShadowPost($post_user_id);
}
self::updateContact($posted_item);
Post\UserNotification::setNotification($posted_item['uri-id'], $posted_item['uid']);
check_user_notification($posted_item['uri-id'], $posted_item['uid']);
// Distribute items to users who subscribed to their tags
self::distributeByTags($posted_item);
// Automatically reshare the item if the "remote_self" option is selected
self::autoReshare($posted_item);
$transmit = $notify || ($posted_item['visible'] && ($parent_origin || $posted_item['origin']));
if ($transmit) {
// Don't relay participation messages
if (($posted_item['verb'] == Activity::FOLLOW) &&
(!$posted_item['origin'] || ($posted_item['author-id'] != Contact::getPublicIdByUserId($uid)))) {
Logger::info('Participation messages will not be relayed', ['item' => $posted_item['id'], 'uri' => $posted_item['uri'], 'verb' => $posted_item['verb']]);
$transmit = false;
}
}
if ($transmit) {
Worker::add(['priority' => $priority, 'dont_fork' => true], 'Notifier', $notify_type, (int)$posted_item['uri-id'], (int)$posted_item['uid']);
}
return $post_user_id;
}
/**
* Change the owner of a parent item if it had been shared by a forum
*
* (public) forum posts in the new format consist of the regular post by the author
* followed by an announce message sent from the forum account.
* Changing the owner helps in grouping forum posts.
*
* @param array $item
* @return void
*/
private static function setOwnerforResharedItem(array $item)
{
$parent = Post::selectFirst(['id', 'causer-id', 'owner-id', 'author-id', 'author-link', 'origin', 'post-reason'],
['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
if (!DBA::isResult($parent)) {
Logger::error('Parent not found', ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
return;
}
$author = Contact::selectFirst(['url', 'contact-type', 'network'], ['id' => $item['author-id']]);
if (!DBA::isResult($author)) {
Logger::error('Author not found', ['id' => $item['author-id']]);
return;
}
$cid = Contact::getIdForURL($author['url'], $item['uid']);
if (empty($cid) || !Contact::isSharing($cid, $item['uid'])) {
Logger::info('The resharer is not a following contact: quit', ['resharer' => $author['url'], 'uid' => $item['uid'], 'cid' => $cid]);
return;
}
if ($author['contact-type'] != Contact::TYPE_COMMUNITY) {
if ($parent['post-reason'] == self::PR_ANNOUNCEMENT) {
Logger::info('The parent is already marked as announced: quit', ['causer' => $parent['causer-id'], 'owner' => $parent['owner-id'], 'author' => $parent['author-id'], 'uid' => $item['uid']]);
return;
}
if (Contact::isSharing($parent['owner-id'], $item['uid'])) {
Logger::info('The resharer is no forum: quit', ['resharer' => $item['author-id'], 'owner' => $parent['owner-id'], 'author' => $parent['author-id'], 'uid' => $item['uid']]);
return;
}
self::update(['post-reason' => self::PR_ANNOUNCEMENT, 'causer-id' => $item['author-id']], ['id' => $parent['id']]);
Logger::info('Set announcement post-reason', ['uri-id' => $item['uri-id'], 'thr-parent-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
return;
}
self::update(['owner-id' => $item['author-id'], 'contact-id' => $cid], ['id' => $parent['id']]);
Logger::info('Change owner of the parent', ['uri-id' => $item['uri-id'], 'thr-parent-id' => $item['thr-parent-id'], 'uid' => $item['uid'], 'owner-id' => $item['author-id'], 'contact-id' => $cid]);
}
/**
* Distribute the given item to users who subscribed to their tags
*
* @param array $item Processed item
*/
private static function distributeByTags(array $item)
{
if (($item['uid'] != 0) || ($item['gravity'] != GRAVITY_PARENT) || !in_array($item['network'], Protocol::FEDERATED)) {
return;
}
$uids = Tag::getUIDListByURIId($item['uri-id']);
foreach ($uids as $uid) {
if (Contact::isSharing($item['author-id'], $uid)) {
$fields = [];
} else {
$fields = ['post-reason' => self::PR_TAG];
}
$stored = self::storeForUserByUriId($item['uri-id'], $uid, $fields);
Logger::info('Stored item for users', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'fields' => $fields, 'stored' => $stored]);
}
}
/**
* Distributes public items to the receivers
*
* @param integer $itemid Item ID that should be added
* @param string $signed_text Original text (for Diaspora signatures), JSON encoded.
* @throws \Exception
*/
public static function distribute($itemid, $signed_text = '')
{
$condition = ["`id` IN (SELECT `parent` FROM `post-user-view` WHERE `id` = ?)", $itemid];
$parent = Post::selectFirst(['owner-id'], $condition);
if (!DBA::isResult($parent)) {
Logger::warning('Item not found', ['condition' => $condition]);
return;
}
// Only distribute public items from native networks
$condition = ['id' => $itemid, 'uid' => 0,
'network' => array_merge(Protocol::FEDERATED ,['']),
'visible' => true, 'deleted' => false, 'private' => [self::PUBLIC, self::UNLISTED]];
$item = Post::selectFirst(self::ITEM_FIELDLIST, $condition);
if (!DBA::isResult($item)) {
Logger::warning('Item not found', ['condition' => $condition]);
return;
}
$origin = $item['origin'];
$users = [];
/// @todo add a field "pcid" in the contact table that referrs to the public contact id.
$owner = DBA::selectFirst('contact', ['url', 'nurl', 'alias'], ['id' => $parent['owner-id']]);
if (!DBA::isResult($owner)) {
return;
}
$condition = ['nurl' => $owner['nurl'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
$contacts = DBA::select('contact', ['uid'], $condition);
while ($contact = DBA::fetch($contacts)) {
if ($contact['uid'] == 0) {
continue;
}
$users[$contact['uid']] = $contact['uid'];
}
DBA::close($contacts);
$condition = ['alias' => $owner['url'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
$contacts = DBA::select('contact', ['uid'], $condition);
while ($contact = DBA::fetch($contacts)) {
if ($contact['uid'] == 0) {
continue;
}
$users[$contact['uid']] = $contact['uid'];
}
DBA::close($contacts);
if (!empty($owner['alias'])) {
$condition = ['nurl' => Strings::normaliseLink($owner['alias']), 'rel' => [Contact::SHARING, Contact::FRIEND]];
$contacts = DBA::select('contact', ['uid'], $condition);
while ($contact = DBA::fetch($contacts)) {
if ($contact['uid'] == 0) {
continue;
}
$users[$contact['uid']] = $contact['uid'];
}
DBA::close($contacts);
}
$origin_uid = 0;
if ($item['uri-id'] != $item['parent-uri-id']) {
$parents = Post::select(['uid', 'origin'], ["`uri-id` = ? AND `uid` != 0", $item['parent-uri-id']]);
while ($parent = Post::fetch($parents)) {
$users[$parent['uid']] = $parent['uid'];
if ($parent['origin'] && !$origin) {
$origin_uid = $parent['uid'];
}
}
DBA::close($parents);
}
foreach ($users as $uid) {
if ($origin_uid == $uid) {
$item['diaspora_signed_text'] = $signed_text;
}
self::storeForUser($item, $uid);
}
}
/**
* Store a public item defined by their URI-ID for the given users
*
* @param integer $uri_id URI-ID of the given item
* @param integer $uid The user that will receive the item entry
* @param array $fields Additional fields to be stored
* @return integer stored item id
*/
public static function storeForUserByUriId(int $uri_id, int $uid, array $fields = [])
{
$item = Post::selectFirst(self::ITEM_FIELDLIST, ['uri-id' => $uri_id, 'uid' => 0]);
if (!DBA::isResult($item)) {
return 0;
}
if (($item['private'] == self::PRIVATE) || !in_array($item['network'], Protocol::FEDERATED)) {
Logger::notice('Item is private or not from a federated network. It will not be stored for the user.', ['uri-id' => $uri_id, 'uid' => $uid, 'private' => $item['private'], 'network' => $item['network']]);
return 0;
}
$item['post-reason'] = self::PR_STORED;
$item = array_merge($item, $fields);
$stored = self::storeForUser($item, $uid);
Logger::info('Public item stored for user', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'stored' => $stored]);
return $stored;
}
/**
* Store a public item array for the given users
*
* @param array $item The item entry that will be stored
* @param integer $uid The user that will receive the item entry
* @return integer stored item id
* @throws \Exception
*/
private static function storeForUser(array $item, int $uid)
{
if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => $uid])) {
Logger::info('Item already exists', ['uri-id' => $item['uri-id'], 'uid' => $uid]);
return 0;
}
unset($item['id']);
unset($item['parent']);
unset($item['mention']);
unset($item['starred']);
unset($item['unseen']);
unset($item['psid']);
$item['uid'] = $uid;
$item['origin'] = 0;
$item['wall'] = 0;
if ($item['gravity'] == GRAVITY_PARENT) {
$contact = Contact::getByURLForUser($item['owner-link'], $uid, false, ['id']);
} else {
$contact = Contact::getByURLForUser($item['author-link'], $uid, false, ['id']);
}
if (!empty($contact['id'])) {
$item['contact-id'] = $contact['id'];
} else {
// Shouldn't happen at all
Logger::warning('contact-id could not be fetched', ['uid' => $uid, 'item' => $item]);
$self = DBA::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
if (!DBA::isResult($self)) {
// Shouldn't happen even less
Logger::warning('self contact could not be fetched', ['uid' => $uid, 'item' => $item]);
return 0;
}
$item['contact-id'] = $self['id'];
}
/// @todo Handling of "event-id"
$notify = false;
if ($item['gravity'] == GRAVITY_PARENT) {
$contact = DBA::selectFirst('contact', [], ['id' => $item['contact-id'], 'self' => false]);
if (DBA::isResult($contact)) {
$notify = self::isRemoteSelf($contact, $item);
}
}
$distributed = self::insert($item, $notify, true);
if (!$distributed) {
Logger::info("Distributed public item wasn't stored", ['uri-id' => $item['uri-id'], 'user' => $uid]);
} else {
Logger::info('Distributed public item was stored', ['uri-id' => $item['uri-id'], 'user' => $uid, 'stored' => $distributed]);
}
return $distributed;
}
/**
* Add a shadow entry for a given item id that is a thread starter
*
* We store every public item entry additionally with the user id "0".
* This is used for the community page and for the search.
* It is planned that in the future we will store public item entries only once.
*
* @param integer $itemid Item ID that should be added
* @throws \Exception
*/
private static function addShadow($itemid)
{
$fields = ['uid', 'private', 'visible', 'deleted', 'network', 'uri-id'];
$condition = ['id' => $itemid, 'gravity' => GRAVITY_PARENT];
$item = Post::selectFirst($fields, $condition);
if (!DBA::isResult($item)) {
return;
}
// is it already a copy?
if (($itemid == 0) || ($item['uid'] == 0)) {
return;
}
// Is it a visible public post?
if (!$item["visible"] || $item["deleted"] || ($item["private"] == self::PRIVATE)) {
return;
}
// is it an entry from a connector? Only add an entry for natively connected networks
if (!in_array($item["network"], array_merge(Protocol::FEDERATED ,['']))) {
return;
}
if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
return;
}
$item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
if (DBA::isResult($item)) {
// Preparing public shadow (removing user specific data)
$item['uid'] = 0;
unset($item['id']);
unset($item['parent']);
unset($item['wall']);
unset($item['mention']);
unset($item['origin']);
unset($item['starred']);
unset($item['postopts']);
unset($item['inform']);
unset($item['post-reason']);
if ($item['uri-id'] == $item['parent-uri-id']) {
$item['contact-id'] = $item['owner-id'];
} else {
$item['contact-id'] = $item['author-id'];
}
$public_shadow = self::insert($item, false, true);
Logger::info('Stored public shadow', ['thread' => $itemid, 'id' => $public_shadow]);
}
}
/**
* Add a shadow entry for a given item id that is a comment
*
* This function does the same like the function above - but for comments
*
* @param integer $itemid Item ID that should be added
* @throws \Exception
*/
private static function addShadowPost($itemid)
{
$item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
if (!DBA::isResult($item)) {
return;
}
// Is it a toplevel post?
if ($item['gravity'] == GRAVITY_PARENT) {
self::addShadow($itemid);
return;
}
// Is this a shadow entry?
if ($item['uid'] == 0) {
return;
}
// Is there a shadow parent?
if (!Post::exists(['uri-id' => $item['parent-uri-id'], 'uid' => 0])) {
return;
}
// Is there already a shadow entry?
if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
return;
}
// Save "origin" and "parent" state
$origin = $item['origin'];
$parent = $item['parent'];
// Preparing public shadow (removing user specific data)
$item['uid'] = 0;
unset($item['id']);
unset($item['parent']);
unset($item['wall']);
unset($item['mention']);
unset($item['origin']);
unset($item['starred']);
unset($item['postopts']);
unset($item['inform']);
unset($item['post-reason']);
$item['contact-id'] = Contact::getIdForURL($item['author-link']);
$public_shadow = self::insert($item, false, true);
Logger::info('Stored public shadow', ['uri-id' => $item['uri-id'], 'id' => $public_shadow]);
// If this was a comment to a Diaspora post we don't get our comment back.
// This means that we have to distribute the comment by ourselves.
if ($origin && Post::exists(['id' => $parent, 'network' => Protocol::DIASPORA])) {
self::distribute($public_shadow);
}
}
/**
* Adds a language specification in a "language" element of given $arr.
* Expects "body" element to exist in $arr.
*
* @param array $item
* @return string detected language
* @throws \Text_LanguageDetect_Exception
*/
private static function getLanguage(array $item)
{
if (!empty($item['language'])) {
return $item['language'];
}
if (!in_array($item['gravity'], [GRAVITY_PARENT, GRAVITY_COMMENT]) || empty($item['body'])) {
return '';
}
// Convert attachments to links
$naked_body = BBCode::removeAttachment($item['body']);
if (empty($naked_body)) {
return '';
}
// Remove links and pictures
$naked_body = BBCode::removeLinks($naked_body);
// Convert the title and the body to plain text
$naked_body = trim($item['title'] . "\n" . BBCode::toPlaintext($naked_body));
// Remove possibly remaining links
$naked_body = preg_replace(Strings::autoLinkRegEx(), '', $naked_body);
if (empty($naked_body)) {
return '';
}
$ld = new Language(DI::l10n()->getAvailableLanguages());
$languages = $ld->detect($naked_body)->limit(0, 3)->close();
if (is_array($languages)) {
return json_encode($languages);
}
return '';
}
public static function getLanguageMessage(array $item)
{
$iso639 = new \Matriphe\ISO639\ISO639;
$used_languages = '';
foreach (json_decode($item['language'], true) as $language => $reliability) {
$used_languages .= $iso639->languageByCode1($language) . ' (' . $language . "): " . number_format($reliability, 5) . '\n';
}
$used_languages = DI::l10n()->t('Detected languages in this post:\n%s', $used_languages);
return $used_languages;
}
/**
* Creates an unique guid out of a given uri
*
* @param string $uri uri of an item entry
* @param string $host hostname for the GUID prefix
* @return string unique guid
*/
public static function guidFromUri($uri, $host)
{
// Our regular guid routine is using this kind of prefix as well
// We have to avoid that different routines could accidentally create the same value
$parsed = parse_url($uri);
// We use a hash of the hostname as prefix for the guid
$guid_prefix = hash("crc32", $host);
// Remove the scheme to make sure that "https" and "http" doesn't make a difference
unset($parsed["scheme"]);
// Glue it together to be able to make a hash from it
$host_id = implode("/", $parsed);
// We could use any hash algorithm since it isn't a security issue
$host_hash = hash("ripemd128", $host_id);
return $guid_prefix.$host_hash;
}
/**
* generate an unique URI
*
* @param integer $uid User id
* @param string $guid An existing GUID (Otherwise it will be generated)
*
* @return string
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function newURI($uid, $guid = "")
{
if ($guid == "") {
$guid = System::createUUID();
}
return DI::baseUrl()->get() . '/objects/' . $guid;
}
/**
* Set "success_update" and "last-item" to the date of the last time we heard from this contact
*
* This can be used to filter for inactive contacts.
* Only do this for public postings to avoid privacy problems, since poco data is public.
* Don't set this value if it isn't from the owner (could be an author that we don't know)
*
* @param array $arr Contains the just posted item record
* @throws \Exception
*/
private static function updateContact($arr)
{
// Unarchive the author
$contact = DBA::selectFirst('contact', [], ['id' => $arr["author-id"]]);
if (DBA::isResult($contact)) {
Contact::unmarkForArchival($contact);
}
// Unarchive the contact if it's not our own contact
$contact = DBA::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
if (DBA::isResult($contact)) {
Contact::unmarkForArchival($contact);
}
/// @todo On private posts we could obfuscate the date
$update = ($arr['private'] != self::PRIVATE) || in_array($arr['network'], Protocol::FEDERATED);
// Is it a forum? Then we don't care about the rules from above
if (!$update && in_array($arr["network"], [Protocol::ACTIVITYPUB, Protocol::DFRN]) && ($arr["parent-uri-id"] === $arr["uri-id"])) {
if (DBA::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
$update = true;
}
}
if ($update) {
// The "self" contact id is used (for example in the connectors) when the contact is unknown
// So we have to ensure to only update the last item when it had been our own post,
// or it had been done by a "regular" contact.
if (!empty($arr['wall'])) {
$condition = ['id' => $arr['contact-id']];
} else {
$condition = ['id' => $arr['contact-id'], 'self' => false];
}
DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']], $condition);
}
// Now do the same for the system wide contacts with uid=0
if ($arr['private'] != self::PRIVATE) {
DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
['id' => $arr['owner-id']]);
if ($arr['owner-id'] != $arr['author-id']) {
DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
['id' => $arr['author-id']]);
}
}
}
public static function setHashtags($body)
{
$body = BBCode::performWithEscapedTags($body, ['noparse', 'pre', 'code', 'img'], function ($body) {
$tags = BBCode::getTags($body);
// No hashtags?
if (!count($tags)) {
return $body;
}
// This sorting is important when there are hashtags that are part of other hashtags
// Otherwise there could be problems with hashtags like #test and #test2
// Because of this we are sorting from the longest to the shortest tag.
usort($tags, function ($a, $b) {
return strlen($b) <=> strlen($a);
});
$URLSearchString = "^\[\]";
// All hashtags should point to the home server if "local_tags" is activated
if (DI::config()->get('system', 'local_tags')) {
$body = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
"#[url=" . DI::baseUrl() . "/search?tag=$2]$2[/url]", $body);
}
// mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
$body = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
function ($match) {
return ("[url=" . str_replace("#", "&num;", $match[1]) . "]" . str_replace("#", "&num;", $match[2]) . "[/url]");
}, $body);
$body = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
function ($match) {
return ("[bookmark=" . str_replace("#", "&num;", $match[1]) . "]" . str_replace("#", "&num;", $match[2]) . "[/bookmark]");
}, $body);
$body = preg_replace_callback("/\[attachment (.*?)\](.*?)\[\/attachment\]/ism",
function ($match) {
return ("[attachment " . str_replace("#", "&num;", $match[1]) . "]" . $match[2] . "[/attachment]");
}, $body);
// Repair recursive urls
$body = preg_replace("/&num;\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
"&num;$2", $body);
foreach ($tags as $tag) {
if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=') || strlen($tag) < 2 || $tag[1] == '#') {
continue;
}
$basetag = str_replace('_', ' ', substr($tag, 1));
$newtag = '#[url=' . DI::baseUrl() . '/search?tag=' . $basetag . ']' . $basetag . '[/url]';
$body = str_replace($tag, $newtag, $body);
}
// Convert back the masked hashtags
$body = str_replace("&num;", "#", $body);
return $body;
});
return $body;
}
/**
* look for mention tags and setup a second delivery chain for forum/community posts if appropriate
*
* @param int $uid
* @param int $item_id
* @return boolean true if item was deleted, else false
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
*/
private static function tagDeliver($uid, $item_id)
{
$mention = false;
$user = DBA::selectFirst('user', [], ['uid' => $uid]);
if (!DBA::isResult($user)) {
return false;
}
$community_page = (($user['page-flags'] == User::PAGE_FLAGS_COMMUNITY) ? true : false);
$prvgroup = (($user['page-flags'] == User::PAGE_FLAGS_PRVGROUP) ? true : false);
$item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
if (!DBA::isResult($item)) {
return false;
}
$link = Strings::normaliseLink(DI::baseUrl() . '/profile/' . $user['nickname']);
/*
* Diaspora uses their own hardwired link URL in @-tags
* instead of the one we supply with webfinger
*/
$dlink = Strings::normaliseLink(DI::baseUrl() . '/u/' . $user['nickname']);
$cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
if ($cnt) {
foreach ($matches as $mtch) {
if (Strings::compareLink($link, $mtch[1]) || Strings::compareLink($dlink, $mtch[1])) {
$mention = true;
Logger::log('mention found: ' . $mtch[2]);
}
}
}
if (!$mention) {
$tags = Tag::getByURIId($item['uri-id'], [Tag::MENTION, Tag::EXCLUSIVE_MENTION]);
foreach ($tags as $tag) {
if (Strings::compareLink($link, $tag['url']) || Strings::compareLink($dlink, $tag['url'])) {
$mention = true;
DI::logger()->info('mention found in tag.', ['url' => $tag['url']]);
}
}
}
if (!$mention) {
if (($community_page || $prvgroup) &&
!$item['wall'] && !$item['origin'] && ($item['gravity'] == GRAVITY_PARENT)) {
Logger::info('Delete private group/communiy top-level item without mention', ['id' => $item['id'], 'guid'=> $item['guid']]);
Post\User::delete(['uri-id' => $item['uri-id'], 'uid' => $item['uid']]);
return true;
}
return false;
}
$arr = ['item' => $item, 'user' => $user];
Hook::callAll('tagged', $arr);
if (!$community_page && !$prvgroup) {
return false;
}
/*
* tgroup delivery - setup a second delivery chain
* prevent delivery looping - only proceed
* if the message originated elsewhere and is a top-level post
*/
if ($item['wall'] || $item['origin'] || ($item['id'] != $item['parent'])) {
return false;
}
// now change this copy of the post to a forum head message and deliver to all the tgroup members
$self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'], ['uid' => $uid, 'self' => true]);
if (!DBA::isResult($self)) {
return false;
}
$owner_id = Contact::getIdForURL($self['url']);
// also reset all the privacy bits to the forum default permissions
$private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? self::PRIVATE : self::PUBLIC;
$psid = PermissionSet::getIdFromACL(
$user['uid'],
$user['allow_cid'],
$user['allow_gid'],
$user['deny_cid'],
$user['deny_gid']
);
$forum_mode = ($prvgroup ? 2 : 1);
$fields = ['wall' => true, 'origin' => true, 'forum_mode' => $forum_mode, 'contact-id' => $self['id'],
'owner-id' => $owner_id, 'private' => $private, 'psid' => $psid];
self::update($fields, ['id' => $item['id']]);
Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', Delivery::POST, (int)$item['uri-id'], (int)$item['uid']);
self::performActivity($item['id'], 'announce', $uid);
return false;
}
/**
* Automatically reshare the item if the "remote_self" option is selected
*
* @param array $item
* @return void
*/
private static function autoReshare(array $item)
{
if ($item['gravity'] != GRAVITY_PARENT) {
return;
}
if (!DBA::exists('contact', ['id' => $item['contact-id'], 'remote_self' => Contact::MIRROR_NATIVE_RESHARE])) {
return;
}
if (!in_array($item['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN])) {
return;
}
Logger::info('Automatically reshare item', ['uid' => $item['uid'], 'id' => $item['id'], 'guid' => $item['guid'], 'uri-id' => $item['uri-id']]);
self::performActivity($item['id'], 'announce', $item['uid']);
}
public static function isRemoteSelf($contact, &$datarray)
{
if (!$contact['remote_self']) {
return false;
}
// Prevent the forwarding of posts that are forwarded
if (!empty($datarray["extid"]) && ($datarray["extid"] == Protocol::DFRN)) {
Logger::info('Already forwarded');
return false;
}
// Prevent to forward already forwarded posts
if ($datarray["app"] == DI::baseUrl()->getHostname()) {
Logger::info('Already forwarded (second test)');
return false;
}
// Only forward posts
if ($datarray["verb"] != Activity::POST) {
Logger::info('No post');
return false;
}
if (($contact['network'] != Protocol::FEED) && ($datarray['private'] == self::PRIVATE)) {
Logger::info('Not public');
return false;
}
$datarray2 = $datarray;
Logger::info('remote-self start', ['contact' => $contact['url'], 'remote_self'=> $contact['remote_self'], 'item' => $datarray]);
if ($contact['remote_self'] == Contact::MIRROR_OWN_POST) {
$self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
['uid' => $contact['uid'], 'self' => true]);
if (DBA::isResult($self)) {
$datarray['contact-id'] = $self["id"];
$datarray['owner-name'] = $self["name"];
$datarray['owner-link'] = $self["url"];
$datarray['owner-avatar'] = $self["thumb"];
$datarray['author-name'] = $datarray['owner-name'];
$datarray['author-link'] = $datarray['owner-link'];
$datarray['author-avatar'] = $datarray['owner-avatar'];
unset($datarray['edited']);
unset($datarray['network']);
unset($datarray['owner-id']);
unset($datarray['author-id']);
}
if ($contact['network'] != Protocol::FEED) {
$old_uri_id = $datarray["uri-id"] ?? 0;
$datarray["guid"] = System::createUUID();
unset($datarray["plink"]);
$datarray["uri"] = self::newURI($contact['uid'], $datarray["guid"]);
$datarray["uri-id"] = ItemURI::getIdByURI($datarray["uri"]);
$datarray["extid"] = Protocol::DFRN;
$urlpart = parse_url($datarray2['author-link']);
$datarray["app"] = $urlpart["host"];
if (!empty($old_uri_id)) {
Post\Media::copy($old_uri_id, $datarray["uri-id"]);
}
unset($datarray["parent-uri"]);
unset($datarray["thr-parent"]);
} else {
$datarray['private'] = self::PUBLIC;
}
}
if ($contact['network'] != Protocol::FEED) {
// Store the original post
$result = self::insert($datarray2);
Logger::info('remote-self post original item', ['contact' => $contact['url'], 'result'=> $result, 'item' => $datarray2]);
} else {
$datarray["app"] = "Feed";
$result = true;
}
// Trigger automatic reactions for addons
$datarray['api_source'] = true;
// We have to tell the hooks who we are - this really should be improved
$_SESSION['authenticated'] = true;
$_SESSION['uid'] = $contact['uid'];
return (bool)$result;
}
/**
*
* @param string $s
* @param int $uid
* @param array $item
* @param int $cid
* @return string
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
*/
public static function fixPrivatePhotos($s, $uid, $item = null, $cid = 0)
{
if (DI::config()->get('system', 'disable_embedded')) {
return $s;
}
Logger::info('check for photos');
$site = substr(DI::baseUrl(), strpos(DI::baseUrl(), '://'));
$orig_body = $s;
$new_body = '';
$img_start = strpos($orig_body, '[img');
$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
$img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
while (($img_st_close !== false) && ($img_len !== false)) {
$img_st_close++; // make it point to AFTER the closing bracket
$image = substr($orig_body, $img_start + $img_st_close, $img_len);
Logger::info('found photo', ['image' => $image]);
if (stristr($image, $site . '/photo/')) {
// Only embed locally hosted photos
$replace = false;
$i = basename($image);
$i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
$x = strpos($i, '-');
if ($x) {
$res = substr($i, $x + 1);
$i = substr($i, 0, $x);
$photo = Photo::getPhotoForUser($uid, $i, $res);
if (DBA::isResult($photo)) {
/*
* Check to see if we should replace this photo link with an embedded image
* 1. No need to do so if the photo is public
* 2. If there's a contact-id provided, see if they're in the access list
* for the photo. If so, embed it.
* 3. Otherwise, if we have an item, see if the item permissions match the photo
* permissions, regardless of order but first check to see if they're an exact
* match to save some processing overhead.
*/
if (self::hasPermissions($photo)) {
if ($cid) {
$recips = self::enumeratePermissions($photo);
if (in_array($cid, $recips)) {
$replace = true;
}
} elseif ($item) {
if (self::samePermissions($uid, $item, $photo)) {
$replace = true;
}
}
}
if ($replace) {
$photo_img = Photo::getImageForPhoto($photo);
// If a custom width and height were specified, apply before embedding
if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
Logger::info('scaling photo');
$width = intval($match[1]);
$height = intval($match[2]);
$photo_img->scaleDown(max($width, $height));
}
$data = $photo_img->asString();
$type = $photo_img->getType();
Logger::info('replacing photo');
$image = 'data:' . $type . ';base64,' . base64_encode($data);
Logger::debug('replaced', ['image' => $image]);
}
}
}
}
$new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
$orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
if ($orig_body === false) {
$orig_body = '';
}
$img_start = strpos($orig_body, '[img');
$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
$img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
}
$new_body = $new_body . $orig_body;
return $new_body;
}
private static function hasPermissions($obj)
{
return !empty($obj['allow_cid']) || !empty($obj['allow_gid']) ||
!empty($obj['deny_cid']) || !empty($obj['deny_gid']);
}
private static function samePermissions($uid, $obj1, $obj2)
{
// first part is easy. Check that these are exactly the same.
if (($obj1['allow_cid'] == $obj2['allow_cid'])
&& ($obj1['allow_gid'] == $obj2['allow_gid'])
&& ($obj1['deny_cid'] == $obj2['deny_cid'])
&& ($obj1['deny_gid'] == $obj2['deny_gid'])) {
return true;
}
// This is harder. Parse all the permissions and compare the resulting set.
$recipients1 = self::enumeratePermissions($obj1);
$recipients2 = self::enumeratePermissions($obj2);
sort($recipients1);
sort($recipients2);
/// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
return ($recipients1 == $recipients2);
}
/**
* Returns an array of contact-ids that are allowed to see this object
*
* @param array $obj Item array with at least uid, allow_cid, allow_gid, deny_cid and deny_gid
* @param bool $check_dead Prunes unavailable contacts from the result
* @return array
* @throws \Exception
*/
public static function enumeratePermissions(array $obj, bool $check_dead = false)
{
$aclFormater = DI::aclFormatter();
$allow_people = $aclFormater->expand($obj['allow_cid']);
$allow_groups = Group::expand($obj['uid'], $aclFormater->expand($obj['allow_gid']), $check_dead);
$deny_people = $aclFormater->expand($obj['deny_cid']);
$deny_groups = Group::expand($obj['uid'], $aclFormater->expand($obj['deny_gid']), $check_dead);
$recipients = array_unique(array_merge($allow_people, $allow_groups));
$deny = array_unique(array_merge($deny_people, $deny_groups));
$recipients = array_diff($recipients, $deny);
return $recipients;
}
public static function expire(int $uid, int $days, string $network = "", bool $force = false)
{
if (!$uid || ($days < 1)) {
return;
}
$condition = ["`uid` = ? AND NOT `deleted` AND `gravity` = ?",
$uid, GRAVITY_PARENT];
/*
* $expire_network_only = save your own wall posts
* and just expire conversations started by others
*/
$expire_network_only = DI::pConfig()->get($uid, 'expire', 'network_only', false);
if ($expire_network_only) {
$condition[0] .= " AND NOT `wall`";
}
if ($network != "") {
$condition[0] .= " AND `network` = ?";
$condition[] = $network;
}
$condition[0] .= " AND `received` < UTC_TIMESTAMP() - INTERVAL ? DAY";
$condition[] = $days;
$items = Post::select(['resource-id', 'starred', 'id', 'post-type', 'uid', 'uri-id'], $condition);
if (!DBA::isResult($items)) {
return;
}
$expire_items = DI::pConfig()->get($uid, 'expire', 'items', true);
// Forcing expiring of items - but not notes and marked items
if ($force) {
$expire_items = true;
}
$expire_notes = DI::pConfig()->get($uid, 'expire', 'notes', true);
$expire_starred = DI::pConfig()->get($uid, 'expire', 'starred', true);
$expire_photos = DI::pConfig()->get($uid, 'expire', 'photos', false);
$expired = 0;
$priority = DI::config()->get('system', 'expire-notify-priority');
while ($item = Post::fetch($items)) {
// don't expire filed items
if (DBA::exists('post-category', ['uri-id' => $item['uri-id'], 'uid' => $item['uid'], 'type' => Post\Category::FILE])) {
continue;
}
// Only expire posts, not photos and photo comments
if (!$expire_photos && !empty($item['resource-id'])) {
continue;
} elseif (!$expire_starred && intval($item['starred'])) {
continue;
} elseif (!$expire_notes && ($item['post-type'] == self::PT_PERSONAL_NOTE)) {
continue;
} elseif (!$expire_items && ($item['post-type'] != self::PT_PERSONAL_NOTE)) {
continue;
}
self::markForDeletionById($item['id'], $priority);
++$expired;
}
DBA::close($items);
Logger::log('User ' . $uid . ": expired $expired items; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
}
public static function firstPostDate($uid, $wall = false)
{
$user = User::getById($uid, ['register_date']);
if (empty($user)) {
return false;
}
$condition = ["`uid` = ? AND `wall` = ? AND NOT `deleted` AND `visible` AND `received` >= ?",
$uid, $wall, $user['register_date']];
$params = ['order' => ['received' => false]];
$thread = Post::selectFirstThread(['received'], $condition, $params);
if (DBA::isResult($thread)) {
$postdate = substr(DateTimeFormat::local($thread['received']), 0, 10);
return $postdate;
}
return false;
}
/**
* add/remove activity to an item
*
* Toggle activities as like,dislike,attend of an item
*
* @param int $item_id
* @param string $verb
* Activity verb. One of
* like, unlike, dislike, undislike, attendyes, unattendyes,
* attendno, unattendno, attendmaybe, unattendmaybe,
* announce, unannouce
* @return bool
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
* @hook 'post_local_end'
* array $arr
* 'post_id' => ID of posted item
*/
public static function performActivity(int $item_id, string $verb, int $uid)
{
if (empty($uid)) {
return false;
}
Logger::notice('Start create activity', ['verb' => $verb, 'item' => $item_id, 'user' => $uid]);
$item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
if (!DBA::isResult($item)) {
Logger::log('like: unknown item ' . $item_id);
return false;
}
$uri_id = $item['uri-id'];
if (!in_array($item['uid'], [0, $uid])) {
return false;
}
if (!Post::exists(['uri-id' => $item['parent-uri-id'], 'uid' => $uid])) {
$stored = self::storeForUserByUriId($item['parent-uri-id'], $uid);
if (($item['parent-uri-id'] == $item['uri-id']) && !empty($stored)) {
$item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $stored]);
if (!DBA::isResult($item)) {
Logger::info('Could not fetch just created item - should not happen', ['stored' => $stored, 'uid' => $uid, 'uri-id' => $uri_id]);
return false;
}
}
}
// Retrieves the local post owner
$owner = User::getOwnerDataById($uid);
if (empty($owner)) {
Logger::info('Empty owner for user', ['uid' => $uid]);
return false;
}
// Retrieve the current logged in user's public contact
$author_id = Contact::getIdForURL($owner['url']);
if (empty($author_id)) {
Logger::info('Empty public contact');
return false;
}
$activity = null;
switch ($verb) {
case 'like':
case 'unlike':
$activity = Activity::LIKE;
break;
case 'dislike':
case 'undislike':
$activity = Activity::DISLIKE;
break;
case 'attendyes':
case 'unattendyes':
$activity = Activity::ATTEND;
break;
case 'attendno':
case 'unattendno':
$activity = Activity::ATTENDNO;
break;
case 'attendmaybe':
case 'unattendmaybe':
$activity = Activity::ATTENDMAYBE;
break;
case 'follow':
case 'unfollow':
$activity = Activity::FOLLOW;
break;
case 'announce':
case 'unannounce':
$activity = Activity::ANNOUNCE;
break;
default:
Logger::notice('unknown verb', ['verb' => $verb, 'item' => $item_id]);
return false;
}
$mode = Strings::startsWith($verb, 'un') ? 'delete' : 'create';
// Enable activity toggling instead of on/off
$event_verb_flag = $activity === Activity::ATTEND || $activity === Activity::ATTENDNO || $activity === Activity::ATTENDMAYBE;
// Look for an existing verb row
// Event participation activities are mutually exclusive, only one of them can exist at all times.
if ($event_verb_flag) {
$verbs = [Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE];
// Translate to the index based activity index
$vids = [];
foreach ($verbs as $verb) {
$vids[] = Verb::getID($verb);
}
} else {
$vids = Verb::getID($activity);
}
$condition = ['vid' => $vids, 'deleted' => false, 'gravity' => GRAVITY_ACTIVITY,
'author-id' => $author_id, 'uid' => $item['uid'], 'thr-parent-id' => $uri_id];
$like_item = Post::selectFirst(['id', 'guid', 'verb'], $condition);
if (DBA::isResult($like_item)) {
/**
* Truth table for existing activities
*
* | Inputs || Outputs |
* |----------------------------||-------------------|
* | Mode | Event | Same verb || Delete? | Return? |
* |--------|-------|-----------||---------|---------|
* | create | Yes | Yes || No | Yes |
* | create | Yes | No || Yes | No |
* | create | No | Yes || No | Yes |
* | create | No | No || N/A† |
* | delete | Yes | Yes || Yes | N/A‡ |
* | delete | Yes | No || No | N/A‡ |
* | delete | No | Yes || Yes | N/A‡ |
* | delete | No | No || N/A† |
* |--------|-------|-----------||---------|---------|
* | A | B | C || A xor C | !B or C |
*
* † Can't happen: It's impossible to find an existing non-event activity without
* the same verb because we are only looking for this single verb.
*
* ‡ The "mode = delete" is returning early whether an existing activity was found or not.
*/
if ($mode == 'create' xor $like_item['verb'] == $activity) {
self::markForDeletionById($like_item['id']);
}
if (!$event_verb_flag || $like_item['verb'] == $activity) {
return true;
}
}
// No need to go further if we aren't creating anything
if ($mode == 'delete') {
return true;
}
$objtype = $item['resource-id'] ? Activity\ObjectType::IMAGE : Activity\ObjectType::NOTE;
$new_item = [
'guid' => System::createUUID(),
'uri' => self::newURI($item['uid']),
'uid' => $item['uid'],
'contact-id' => $owner['id'],
'wall' => $item['wall'],
'origin' => 1,
'network' => Protocol::DFRN,
'protocol' => Conversation::PARCEL_DIRECT,
'direction' => Conversation::PUSH,
'gravity' => GRAVITY_ACTIVITY,
'parent' => $item['id'],
'thr-parent' => $item['uri'],
'owner-id' => $author_id,
'author-id' => $author_id,
'body' => $activity,
'verb' => $activity,
'object-type' => $objtype,
'allow_cid' => $item['allow_cid'],
'allow_gid' => $item['allow_gid'],
'deny_cid' => $item['deny_cid'],
'deny_gid' => $item['deny_gid'],
'visible' => 1,
'unseen' => 1,
];
$signed = Diaspora::createLikeSignature($uid, $new_item);
if (!empty($signed)) {
$new_item['diaspora_signed_text'] = json_encode($signed);
}
$new_item_id = self::insert($new_item);
// If the parent item isn't visible then set it to visible
if (!$item['visible']) {
self::update(['visible' => true], ['id' => $item['id']]);
}
$new_item['id'] = $new_item_id;
Hook::callAll('post_local_end', $new_item);
return true;
}
/**
* Fetch the SQL condition for the given user id
*
* @param integer $owner_id User ID for which the permissions should be fetched
* @return array condition
*/
public static function getPermissionsConditionArrayByUserId(int $owner_id)
{
$local_user = local_user();
$remote_user = Session::getRemoteContactID($owner_id);
// default permissions - anonymous user
$condition = ["`private` != ?", self::