friendica/src/Model/Post/UserNotification.php
2022-02-20 05:14:36 +00:00

541 lines
16 KiB
PHP

<?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\Model\Post;
use BadMethodCallException;
use Exception;
use Friendica\Core\Hook;
use Friendica\Core\Logger;
use Friendica\Database\Database;
use Friendica\Database\DBA;
use Friendica\Database\DBStructure;
use Friendica\DI;
use Friendica\Model\Contact;
use Friendica\Model\Post;
use Friendica\Model\Subscription;
use Friendica\Model\Tag;
use Friendica\Model\User;
use Friendica\Navigation\Notifications;
use Friendica\Network\HTTPException;
use Friendica\Protocol\Activity;
use Friendica\Util\Strings;
class UserNotification
{
// Notification types
const TYPE_NONE = 0;
const TYPE_EXPLICIT_TAGGED = 1;
const TYPE_IMPLICIT_TAGGED = 2;
const TYPE_THREAD_COMMENT = 4;
const TYPE_DIRECT_COMMENT = 8;
const TYPE_COMMENT_PARTICIPATION = 16;
const TYPE_ACTIVITY_PARTICIPATION = 32;
const TYPE_DIRECT_THREAD_COMMENT = 64;
const TYPE_SHARED = 128;
/**
* Insert a new user notification entry
*
* @param integer $uri_id
* @param integer $uid
* @param array $data
* @return bool success
* @throws Exception
*/
public static function insert(int $uri_id, int $uid, array $data = []): bool
{
if (empty($uri_id)) {
throw new BadMethodCallException('Empty URI_id');
}
$fields = DBStructure::getFieldsForTable('post-user-notification', $data);
$fields['uri-id'] = $uri_id;
$fields['uid'] = $uid;
return DBA::insert('post-user-notification', $fields, Database::INSERT_IGNORE);
}
/**
* Update a user notification entry
*
* @param integer $uri_id
* @param integer $uid
* @param array $data
* @param bool $insert_if_missing
* @return bool
* @throws Exception
*/
public static function update(int $uri_id, int $uid, array $data = [], bool $insert_if_missing = false): bool
{
if (empty($uri_id)) {
throw new BadMethodCallException('Empty URI_id');
}
$fields = DBStructure::getFieldsForTable('post-user-notification', $data);
// Remove the key fields
unset($fields['uri-id']);
unset($fields['uid']);
if (empty($fields)) {
return true;
}
return DBA::update('post-user-notification', $fields, ['uri-id' => $uri_id, 'uid' => $uid], $insert_if_missing ? true : []);
}
/**
* Delete a row from the post-user-notification table
*
* @param array $conditions Field condition(s)
* @param array $options - cascade: If true we delete records in other tables that depend on the one we're deleting through
* relations (default: true)
*
* @return boolean was the deletion successful?
* @throws Exception
*/
public static function delete(array $conditions, array $options = []): bool
{
return DBA::delete('post-user-notification', $conditions, $options);
}
/**
* Checks an item for notifications and sets the "notification-type" field
*
* @ToDo:
* - Check for mentions in posts with "uid=0" where the user hadn't interacted before
*
* @param int $uri_id URI ID
* @param int $uid user ID
* @throws Exception
*/
public static function setNotification(int $uri_id, int $uid)
{
$fields = ['id', 'uri-id', 'parent-uri-id', 'uid', 'body', 'parent', 'gravity', 'vid', 'gravity',
'private', 'contact-id', 'thr-parent', 'thr-parent-id', 'parent-uri-id', 'parent-uri', 'author-id', 'verb'];
$item = Post::selectFirst($fields, ['uri-id' => $uri_id, 'uid' => $uid, 'origin' => false]);
if (!DBA::isResult($item)) {
return;
}
// "Activity::FOLLOW" is an automated activity, so we ignore it here
if ($item['verb'] == Activity::FOLLOW) {
return;
}
if ($item['uid'] == 0) {
$uids = [];
} else {
// Always include the item user
$uids = [$item['uid']];
}
// Add every user who participated so far in this thread
// This can only happen with participations on global items. (means: uid = 0)
$users = DBA::p("SELECT DISTINCT(`contact-uid`) AS `uid` FROM `post-user-view`
WHERE `contact-uid` != 0 AND `parent-uri-id` = ? AND `uid` = ?", $item['parent-uri-id'], $uid);
while ($user = DBA::fetch($users)) {
$uids[] = $user['uid'];
}
DBA::close($users);
foreach (array_unique($uids) as $uid) {
self::setNotificationForUser($item, $uid);
}
}
/**
* Checks an item for notifications for the given user and sets the "notification-type" field
*
* @param array $item Item array
* @param int $uid User ID
* @throws HTTPException\InternalServerErrorException
*/
private static function setNotificationForUser(array $item, int $uid)
{
if (Post\ThreadUser::getIgnored($item['parent-uri-id'], $uid)) {
return;
}
$user = User::getById($uid, ['account-type']);
if (in_array($user['account-type'], [User::ACCOUNT_TYPE_COMMUNITY, User::ACCOUNT_TYPE_RELAY])) {
return;
}
$author = Contact::getById($item['author-id'], ['contact-type']);
if (empty($author)) {
return;
}
$notification_type = self::TYPE_NONE;
if (self::checkShared($item, $uid)) {
$notification_type = $notification_type | self::TYPE_SHARED;
self::insertNotificationByItem(self::TYPE_SHARED, $uid, $item);
$notified = true;
} else {
$notified = false;
}
$profiles = self::getProfileForUser($uid);
// Fetch all contacts for the given profiles
$contacts = [];
$iscommunity = false;
$ret = DBA::select('contact', ['id', 'contact-type'], ['uid' => 0, 'nurl' => $profiles]);
while ($contact = DBA::fetch($ret)) {
$contacts[] = $contact['id'];
if ($contact['contact-type'] == Contact::TYPE_COMMUNITY) {
$iscommunity = true;
}
}
DBA::close($ret);
// Don't create notifications for user's posts
if (in_array($item['author-id'], $contacts)) {
return;
}
if (self::checkExplicitMention($item, $profiles)) {
$notification_type = $notification_type | self::TYPE_EXPLICIT_TAGGED;
if (!$notified) {
self::insertNotificationByItem(self::TYPE_EXPLICIT_TAGGED, $uid, $item);
$notified = true;
}
}
if (self::checkImplicitMention($item, $profiles)) {
$notification_type = $notification_type | self::TYPE_IMPLICIT_TAGGED;
if (!$notified) {
self::insertNotificationByItem(self::TYPE_IMPLICIT_TAGGED, $uid, $item);
$notified = true;
}
}
if (self::checkDirectComment($item, $contacts)) {
$notification_type = $notification_type | self::TYPE_DIRECT_COMMENT;
if (!$notified) {
self::insertNotificationByItem(self::TYPE_DIRECT_COMMENT, $uid, $item);
$notified = true;
}
}
if (!$iscommunity && self::checkDirectCommentedThread($item, $contacts)) {
$notification_type = $notification_type | self::TYPE_DIRECT_THREAD_COMMENT;
if (!$notified) {
self::insertNotificationByItem(self::TYPE_DIRECT_THREAD_COMMENT, $uid, $item);
$notified = true;
}
}
if (self::checkCommentedThread($item, $contacts)) {
$notification_type = $notification_type | self::TYPE_THREAD_COMMENT;
if (!$notified) {
self::insertNotificationByItem(self::TYPE_THREAD_COMMENT, $uid, $item);
$notified = true;
}
}
if (self::checkCommentedParticipation($item, $contacts)) {
$notification_type = $notification_type | self::TYPE_COMMENT_PARTICIPATION;
if (!$notified) {
self::insertNotificationByItem(self::TYPE_COMMENT_PARTICIPATION, $uid, $item);
$notified = true;
}
}
if (self::checkActivityParticipation($item, $contacts)) {
$notification_type = $notification_type | self::TYPE_ACTIVITY_PARTICIPATION;
if (!$notified) {
self::insertNotificationByItem(self::TYPE_ACTIVITY_PARTICIPATION, $uid, $item);
}
}
if (empty($notification_type)) {
return;
}
// Only create notifications for posts and comments, not for activities
if (($item['gravity'] == GRAVITY_ACTIVITY) && ($item['verb'] != Activity::ANNOUNCE)) {
return;
}
Logger::info('Set notification', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'notification-type' => $notification_type]);
$fields = ['notification-type' => $notification_type];
Post\User::update($item['uri-id'], $uid, $fields);
self::update($item['uri-id'], $uid, $fields, true);
}
/**
* Add a notification entry for a given item array
*
* @param int $type User notification type
* @param int $uid User ID
* @param array $item Item array
* @return void
* @throws Exception
*/
private static function insertNotificationByItem(int $type, int $uid, array $item): void
{
if (($item['verb'] != Activity::ANNOUNCE) && ($item['gravity'] == GRAVITY_ACTIVITY) &&
!in_array($type, [self::TYPE_DIRECT_COMMENT, self::TYPE_DIRECT_THREAD_COMMENT])) {
// Activities are only stored when performed on the user's post or comment
return;
}
$notification = (new Notifications\Factory\Notification(DI::logger()))->createForUser(
$uid,
$item['vid'],
$type,
$item['author-id'],
$item['gravity'] == GRAVITY_ACTIVITY ? $item['thr-parent-id'] : $item['uri-id'],
$item['parent-uri-id']
);
try {
$notification = DI::notification()->save($notification);
Subscription::pushByNotification($notification);
} catch (Exception $e) {
}
}
/**
* Add a notification entry
*
* @param int $actor Contact ID of the actor
* @param string $verb One of the Activity verb constant values
* @param int $uid User ID
* @return boolean
* @throws Exception
*/
public static function insertNotification(int $actor, string $verb, int $uid): bool
{
$notification = (new Notifications\Factory\Notification(DI::logger()))->createForRelationship(
$uid,
$actor,
$verb
);
try {
$notification = DI::notification()->save($notification);
Subscription::pushByNotification($notification);
return true;
} catch (Exception $e) {
return false;
}
}
/**
* Fetch all profiles (contact URL) of a given user
*
* @param int $uid User ID
*
* @return array Profile links
* @throws HTTPException\InternalServerErrorException
*/
private static function getProfileForUser(int $uid): array
{
$notification_data = ['uid' => $uid, 'profiles' => []];
Hook::callAll('check_item_notification', $notification_data);
$profiles = $notification_data['profiles'];
$user = DBA::selectFirst('user', ['nickname'], ['uid' => $uid]);
if (!DBA::isResult($user)) {
return [];
}
$owner = DBA::selectFirst('contact', ['url', 'alias'], ['self' => true, 'uid' => $uid]);
if (!DBA::isResult($owner)) {
return [];
}
// This is our regular URL format
$profiles[] = $owner['url'];
// Now the alias
$profiles[] = $owner['alias'];
// Notifications from Diaspora often have a URL in the Diaspora format
$profiles[] = DI::baseUrl() . '/u/' . $user['nickname'];
// Validate and add profile links
foreach ($profiles as $key => $profile) {
// Check for invalid profile urls (without scheme, host or path) and remove them
if (empty(parse_url($profile, PHP_URL_SCHEME)) || empty(parse_url($profile, PHP_URL_HOST)) || empty(parse_url($profile, PHP_URL_PATH))) {
unset($profiles[$key]);
continue;
}
// Add the normalized form
$profile = Strings::normaliseLink($profile);
$profiles[] = $profile;
// Add the SSL form
$profile = str_replace('http://', 'https://', $profile);
$profiles[] = $profile;
}
return array_unique($profiles);
}
/**
* Check for a "shared" notification for every new post of contacts from the given user
*
* @param array $item
* @param int $uid User ID
* @return bool A contact had shared something
* @throws Exception
*/
private static function checkShared(array $item, int $uid): bool
{
// Only check on original posts and reshare ("announce") activities, otherwise return
if (($item['gravity'] != GRAVITY_PARENT) && ($item['verb'] != Activity::ANNOUNCE)) {
return false;
}
// Check if the contact posted or shared something directly
if (DBA::exists('contact', ['id' => $item['contact-id'], 'notify_new_posts' => true])) {
return true;
}
return false;
}
/**
* Check for an implicit mention (only in tags, not in body) of the given user
*
* @param array $item
* @param array $profiles Profile links
* @return bool The user is mentioned
* @throws Exception
*/
private static function checkImplicitMention(array $item, array $profiles): bool
{
$mentions = Tag::getByURIId($item['uri-id'], [Tag::IMPLICIT_MENTION]);
foreach ($mentions as $mention) {
foreach ($profiles as $profile) {
if (Strings::compareLink($profile, $mention['url'])) {
return true;
}
}
}
return false;
}
/**
* Check for an explicit mention (tag and body) of the given user
*
* @param array $item
* @param array $profiles Profile links
* @return bool The user is mentioned
* @throws Exception
*/
private static function checkExplicitMention(array $item, array $profiles): bool
{
$mentions = Tag::getByURIId($item['uri-id'], [Tag::MENTION, Tag::EXCLUSIVE_MENTION]);
foreach ($mentions as $mention) {
foreach ($profiles as $profile) {
if (Strings::compareLink($profile, $mention['url'])) {
return true;
}
}
}
return false;
}
/**
* Check if the given user had created this thread
*
* @param array $item
* @param array $contacts Array of contact IDs
* @return bool The user had created this thread
* @throws Exception
*/
private static function checkCommentedThread(array $item, array $contacts): bool
{
$condition = ['parent' => $item['parent'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_PARENT];
return Post::exists($condition);
}
/**
* Check for a direct comment to a post of the given user
*
* @param array $item
* @param array $contacts Array of contact IDs
* @return bool The item is a direct comment to a user comment
* @throws Exception
*/
private static function checkDirectComment(array $item, array $contacts): bool
{
$condition = ['uri' => $item['thr-parent'], 'uid' => $item['uid'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_COMMENT];
return Post::exists($condition);
}
/**
* Check for a direct comment to the starting post of the given user
*
* @param array $item
* @param array $contacts Array of contact IDs
* @return bool The user had created this thread
* @throws Exception
*/
private static function checkDirectCommentedThread(array $item, array $contacts): bool
{
$condition = ['uri' => $item['thr-parent'], 'uid' => $item['uid'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_PARENT];
return Post::exists($condition);
}
/**
* Check if the user had commented in this thread
*
* @param array $item
* @param array $contacts Array of contact IDs
* @return bool The user had commented in the thread
* @throws Exception
*/
private static function checkCommentedParticipation(array $item, array $contacts): bool
{
$condition = ['parent' => $item['parent'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_COMMENT];
return Post::exists($condition);
}
/**
* Check if the user had interacted in this thread (Like, Dislike, ...)
*
* @param array $item
* @param array $contacts Array of contact IDs
* @return bool The user had interacted in the thread
* @throws Exception
*/
private static function checkActivityParticipation(array $item, array $contacts): bool
{
$condition = ['parent' => $item['parent'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_ACTIVITY];
return Post::exists($condition);
}
}