src/Module/PermissionTooltip.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2022, the Friendica project
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 namespace Friendica\Module;
  23
  24 use Friendica\Core\Hook;
  25 use Friendica\Database\DBA;
  26 use Friendica\DI;
  27 use Friendica\Model\Group;
  28 use Friendica\Model\Post;
  29 use Friendica\Model\Tag;
  30 use Friendica\Network\HTTPException;
  31
  32 /**
  33  * Outputs the permission tooltip HTML content for the provided item, photo or event id.
  34  */
  35 class PermissionTooltip extends \Friendica\BaseModule
  36 {
  37         protected function rawContent(array $request = [])
  38         {
  39                 $type = $this->parameters['type'];
  40                 $referenceId = $this->parameters['id'];
  41
  42                 $expectedTypes = ['item', 'photo', 'event'];
  43                 if (!in_array($type, $expectedTypes)) {
  44                         throw new HTTPException\BadRequestException(DI::l10n()->t('Wrong type "%s", expected one of: %s', $type, implode(', ', $expectedTypes)));
  45                 }
  46
  47                 $condition = ['id' => $referenceId];
  48                 if ($type == 'item') {
  49                         $fields = ['uid', 'psid', 'private', 'uri-id'];
  50                         $model = Post::selectFirst($fields, $condition);
  51                 } else {
  52                         $fields = ['uid', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'];
  53                         $model = DBA::selectFirst($type, $fields, $condition);
  54                         $model['allow_cid'] = DI::aclFormatter()->expand($model['allow_cid']);
  55                         $model['allow_gid'] = DI::aclFormatter()->expand($model['allow_gid']);
  56                         $model['deny_cid']  = DI::aclFormatter()->expand($model['deny_cid']);
  57                         $model['deny_gid']  = DI::aclFormatter()->expand($model['deny_gid']);
  58                 }
  59
  60                 if (!DBA::isResult($model)) {
  61                         throw new HttpException\NotFoundException(DI::l10n()->t('Model not found'));
  62                 }
  63
  64                 if (isset($model['psid'])) {
  65                         $permissionSet = DI::permissionSet()->selectOneById($model['psid'], $model['uid']);
  66                         $model['allow_cid'] = $permissionSet->allow_cid;
  67                         $model['allow_gid'] = $permissionSet->allow_gid;
  68                         $model['deny_cid']  = $permissionSet->deny_cid;
  69                         $model['deny_gid']  = $permissionSet->deny_gid;
  70                 }
  71
  72                 // Kept for backwards compatiblity
  73                 Hook::callAll('lockview_content', $model);
  74
  75                 if ($type == 'item') {
  76                         $receivers = $this->fetchReceivers($model['uri-id']);
  77                 } else {
  78                         $receivers = '';
  79                 }
  80
  81                 if ($model['uid'] != local_user() ||
  82                         empty($model['allow_cid'])
  83                         && empty($model['allow_gid'])
  84                         && empty($model['deny_cid'])
  85                         && empty($model['deny_gid'])
  86                         && empty($receivers))
  87                 {
  88                         echo DI::l10n()->t('Remote privacy information not available.');
  89                         exit;
  90                 }
  91
  92                 $allowed_users  = $model['allow_cid'];
  93                 $allowed_groups = $model['allow_gid'];
  94                 $deny_users     = $model['deny_cid'];
  95                 $deny_groups    = $model['deny_gid'];
  96
  97                 $o = DI::l10n()->t('Visible to:') . '<br />';
  98                 $l = [];
  99
 100                 if (count($allowed_groups)) {
 101                         $key = array_search(Group::FOLLOWERS, $allowed_groups);
 102                         if ($key !== false) {
 103                                 $l[] = '<b>' . DI::l10n()->t('Followers') . '</b>';
 104                                 unset($allowed_groups[$key]);
 105                         }
 106
 107                         $key = array_search(Group::MUTUALS, $allowed_groups);
 108                         if ($key !== false) {
 109                                 $l[] = '<b>' . DI::l10n()->t('Mutuals') . '</b>';
 110                                 unset($allowed_groups[$key]);
 111                         }
 112
 113                         foreach (DI::dba()->selectToArray('group', ['name'], ['id' => $allowed_groups]) as $group) {
 114                                 $l[] = '<b>' . $group['name'] . '</b>';
 115                         }
 116                 }
 117
 118                 foreach (DI::dba()->selectToArray('contact', ['name'], ['id' => $allowed_users]) as $contact) {
 119                         $l[] = $contact['name'];
 120                 }
 121
 122                 if (count($deny_groups)) {
 123                         $key = array_search(Group::FOLLOWERS, $deny_groups);
 124                         if ($key !== false) {
 125                                 $l[] = '<b><strike>' . DI::l10n()->t('Followers') . '</strike></b>';
 126                                 unset($deny_groups[$key]);
 127                         }
 128
 129                         $key = array_search(Group::MUTUALS, $deny_groups);
 130                         if ($key !== false) {
 131                                 $l[] = '<b><strike>' . DI::l10n()->t('Mutuals') . '</strike></b>';
 132                                 unset($deny_groups[$key]);
 133                         }
 134
 135                         foreach (DI::dba()->selectToArray('group', ['name'], ['id' => $allowed_groups]) as $group) {
 136                                 $l[] = '<b><strike>' . $group['name'] . '</strike></b>';
 137                         }
 138                 }
 139
 140                 foreach (DI::dba()->selectToArray('contact', ['name'], ['id' => $deny_users]) as $contact) {
 141                         $l[] = '<strike>' . $contact['name'] . '</strike>';
 142                 }
 143
 144                 if (!empty($l)) {
 145                         echo $o . implode(', ', $l);
 146                 } else {
 147                         echo $o . $receivers;
 148                 }
 149
 150                 exit();
 151         }
 152
 153         /**
 154          * Fetch a list of receivers
 155          *
 156          * @param int $uriId
 157          * @return string
 158          */
 159         private function fetchReceivers(int $uriId):string
 160         {
 161                 // We only fetch "to" and "cc", because "bcc" should never be displayed
 162                 $receivers = [];
 163                 foreach (Tag::getByURIId($uriId, [Tag::TO, Tag::CC]) as $receiver) {
 164                         $receivers[$receiver['type']][] = $receiver['name'];
 165                 }
 166
 167                 $output = '';
 168
 169                 foreach ($receivers as $type => $receiver) {
 170                         $max = DI::config()->get('system', 'max_receivers');
 171                         $total = count($receiver);
 172                         if ($total > $max) {
 173                                 $receiver = array_slice($receiver, 0, $max);
 174                                 $receiver[] = DI::l10n()->t('%d more', $total - $max);
 175                         }
 176                         switch ($type) {
 177                                 case Tag::TO:
 178                                         $output .= DI::l10n()->t('<b>To:</b> %s<br>', implode(', ', $receiver));
 179                                         break;
 180                                 case Tag::CC:
 181                                         $output .= DI::l10n()->t('<b>CC:</b> %s<br>', implode(', ', $receiver));
 182                                         break;
 183                         }
 184                 }
 185
 186                 return $output;
 187         }
 188 }