friendica/src/Model/UserItem.php

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<?php
/**
* @file src/Model/UserItem.php
*/
namespace Friendica\Model;
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use Friendica\Core\Hook;
use Friendica\Database\DBA;
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use Friendica\DI;
use Friendica\Util\Strings;
class UserItem
{
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const NOTIF_NONE = 0;
const NOTIF_EXPLICIT_TAGGED = 1;
const NOTIF_IMPLICIT_TAGGED = 2;
const NOTIF_THREAD_COMMENT = 4;
const NOTIF_DIRECT_COMMENT = 8;
const NOTIF_COMMENT_PARTICIPATION = 16;
const NOTIF_ACTIVITY_PARTICIPATION = 32;
const NOTIF_SHARED = 128;
/**
* Checks an item for notifications and sets the "notification-type" field
*
* @param array $item The message array that is checked for notifications
* @param int $uid User ID
*/
public static function setNotification($item, $uid)
{
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// Don't check for own posts
if ($item['origin'] || empty($uid)) {
return;
}
$fields = ['ignored', 'mention'];
$thread = Item::selectFirstThreadForUser($uid, $fields, ['iid' => $item['parent'], 'deleted' => false]);
if ($thread['ignored']) {
return;
}
$notification_type = self::NOTIF_NONE;
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if (self::checkShared($item, $uid)) {
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$notification_type = $notification_type | self::NOTIF_SHARED;
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}
$profiles = self::getProfileForUser($uid);
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if (self::checkImplicitMention($item, $uid, $profiles)) {
$notification_type = $notification_type | self::NOTIF_IMPLICIT_TAGGED;
}
if (self::checkExplicitMention($item, $uid, $profiles)) {
$notification_type = $notification_type | self::NOTIF_EXPLICIT_TAGGED;
}
$contacts = [];
$ret = DBA::select('contact', ['id'], ['uid' => 0, 'nurl' => $profiles]);
while ($contact = DBA::fetch($ret)) {
$contacts[] = $contact['id'];
}
DBA::close($ret);
if (self::checkCommentedThread($item, $uid, $contacts)) {
$notification_type = $notification_type | self::NOTIF_THREAD_COMMENT;
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}
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if (self::checkDirectComment($item, $uid, $contacts, $thread)) {
$notification_type = $notification_type | self::NOTIF_DIRECT_COMMENT;
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}
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if (self::checkCommentedParticipation($item, $uid, $contacts)) {
$notification_type = $notification_type | self::NOTIF_COMMENT_PARTICIPATION;
}
if (self::checkActivityParticipation($item, $uid, $contacts)) {
$notification_type = $notification_type | self::NOTIF_ACTIVITY_PARTICIPATION;
}
DBA::update('user-item', ['notification-type' => $notification_type], ['iid' => $item['id'], 'uid' => $uid], true);
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}
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// Fetch all contacts for the given profiles
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private static function getProfileForUser($uid)
{
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$notification_data = ['uid' => $uid, 'profiles' => []];
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Hook::callAll('check_item_notification', $notification_data);
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$profiles = $notification_data['profiles'];
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$fields = ['nickname'];
$user = DBA::selectFirst('user', $fields, ['uid' => $uid]);
if (!DBA::isResult($user)) {
return false;
}
$owner = DBA::selectFirst('contact', ['url'], ['self' => true, 'uid' => $uid]);
if (!DBA::isResult($owner)) {
return false;
}
// This is our regular URL format
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$profiles[] = $owner['url'];
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// Notifications from Diaspora are often with an URL in the Diaspora format
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$profiles[] = DI::baseUrl().'/u/'.$user['nickname'];
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$profiles2 = [];
foreach ($profiles AS $profile) {
// Check for invalid profile urls. 13 should be the shortest possible profile length:
// http://a.bc/d
// Additionally check for invalid urls that would return the normalised value "http:"
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if ((strlen($profile) >= 13) && (Strings::normaliseLink($profile) != 'http:')) {
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if (!in_array($profile, $profiles2))
$profiles2[] = $profile;
$profile = Strings::normaliseLink($profile);
if (!in_array($profile, $profiles2))
$profiles2[] = $profile;
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$profile = str_replace('http://', 'https://', $profile);
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if (!in_array($profile, $profiles2))
$profiles2[] = $profile;
}
}
return $profiles2;
}
private static function checkShared($item, $uid)
{
if ($item['gravity'] != GRAVITY_PARENT) {
return false;
}
// Send a notification for every new post?
// Either the contact had posted something directly
if (DBA::exists('contact', ['id' => $item['contact-id'], 'notify_new_posts' => true])) {
return true;
}
// Or the contact is a mentioned forum
$tags = DBA::select('term', ['url'], ['otype' => TERM_OBJ_POST, 'oid' => $itemid, 'type' => TERM_MENTION, 'uid' => $uid]);
while ($tag = DBA::fetch($tags)) {
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$condition = ['nurl' => Strings::normaliseLink($tag['url']), 'uid' => $uid, 'notify_new_posts' => true, 'contact-type' => Contact::TYPE_COMMUNITY];
if (DBA::exists('contact', $condition)) {
return true;
}
}
return false;
}
// Is the user mentioned in this post?
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private static function checkImplicitMention($item, $uid, $profiles)
{
foreach ($profiles AS $profile) {
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if (strpos($item['tag'], '='.$profile.']') || strpos($item['body'], '='.$profile.']'))
return true;
}
return false;
}
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private static function checkExplicitMention($item, $uid, $profiles)
{
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foreach ($profiles AS $profile) {
if (strpos($item['tag'], '='.$profile.']') || strpos($item['body'], '='.$profile.']'))
return !(strpos($item['body'], $profile) === false);
}
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return false;
}
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// Is it a post that the user had started?
private static function checkCommentedThread($item, $uid, $contacts)
{
// Additional check for connector posts
$condition = ['parent' => $item['parent'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_PARENT];
return Item::exists($condition);
}
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private static function checkDirectComment($item, $uid, $contacts)
{
// Additional check for connector posts
$condition = ['uri' => $item['thr-parent'], 'uid' => [0, $uid], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_COMMENT];
return Item::exists($condition);
}
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// Check for participation of one of our contacts in the thread
private static function checkCommentedParticipation($item, $uid, $contacts)
{
$condition = ['parent' => $item['parent'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_COMMENT];
return Item::exists($condition);
}
private static function checkActivityParticipation($item, $uid, $contacts)
{
$condition = ['parent' => $item['parent'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_ACTIVITY];
return Item::exists($condition);
}
}