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 use Friendica\Protocol\ActivityPub;
  32
  33 /**
  34  * Outputs the permission tooltip HTML content for the provided item, photo or event id.
  35  */
  36 class PermissionTooltip extends \Friendica\BaseModule
  37 {
  38         protected function rawContent(array $request = [])
  39         {
  40                 $type = $this->parameters['type'];
  41                 $referenceId = $this->parameters['id'];
  42
  43                 $expectedTypes = ['item', 'photo', 'event'];
  44                 if (!in_array($type, $expectedTypes)) {
  45                         throw new HTTPException\BadRequestException(DI::l10n()->t('Wrong type "%s", expected one of: %s', $type, implode(', ', $expectedTypes)));
  46                 }
  47
  48                 $condition = ['id' => $referenceId];
  49                 if ($type == 'item') {
  50                         $fields = ['uid', 'psid', 'private', 'uri-id'];
  51                         $model = Post::selectFirst($fields, $condition);
  52                 } else {
  53                         $fields = ['uid', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'];
  54                         $model = DBA::selectFirst($type, $fields, $condition);
  55                         $model['allow_cid'] = DI::aclFormatter()->expand($model['allow_cid']);
  56                         $model['allow_gid'] = DI::aclFormatter()->expand($model['allow_gid']);
  57                         $model['deny_cid']  = DI::aclFormatter()->expand($model['deny_cid']);
  58                         $model['deny_gid']  = DI::aclFormatter()->expand($model['deny_gid']);
  59                 }
  60
  61                 if (!DBA::isResult($model)) {
  62                         throw new HttpException\NotFoundException(DI::l10n()->t('Model not found'));
  63                 }
  64
  65                 if (isset($model['psid'])) {
  66                         $permissionSet = DI::permissionSet()->selectOneById($model['psid'], $model['uid']);
  67                         $model['allow_cid'] = $permissionSet->allow_cid;
  68                         $model['allow_gid'] = $permissionSet->allow_gid;
  69                         $model['deny_cid']  = $permissionSet->deny_cid;
  70                         $model['deny_gid']  = $permissionSet->deny_gid;
  71                 }
  72
  73                 // Kept for backwards compatiblity
  74                 Hook::callAll('lockview_content', $model);
  75
  76                 if ($type == 'item') {
  77                         $receivers = $this->fetchReceivers($model['uri-id']);
  78                 } else {
  79                         $receivers = '';
  80                 }
  81
  82                 if ($model['uid'] != local_user() ||
  83                         empty($model['allow_cid'])
  84                         && empty($model['allow_gid'])
  85                         && empty($model['deny_cid'])
  86                         && empty($model['deny_gid'])
  87                         && empty($receivers))
  88                 {
  89                         echo DI::l10n()->t('Remote privacy information not available.');
  90                         exit;
  91                 }
  92
  93                 $allowed_users  = $model['allow_cid'];
  94                 $allowed_groups = $model['allow_gid'];
  95                 $deny_users     = $model['deny_cid'];
  96                 $deny_groups    = $model['deny_gid'];
  97
  98                 $o = DI::l10n()->t('Visible to:') . '<br />';
  99                 $l = [];
 100
 101                 if (count($allowed_groups)) {
 102                         $key = array_search(Group::FOLLOWERS, $allowed_groups);
 103                         if ($key !== false) {
 104                                 $l[] = '<b>' . DI::l10n()->t('Followers') . '</b>';
 105                                 unset($allowed_groups[$key]);
 106                         }
 107
 108                         $key = array_search(Group::MUTUALS, $allowed_groups);
 109                         if ($key !== false) {
 110                                 $l[] = '<b>' . DI::l10n()->t('Mutuals') . '</b>';
 111                                 unset($allowed_groups[$key]);
 112                         }
 113
 114                         foreach (DI::dba()->selectToArray('group', ['name'], ['id' => $allowed_groups]) as $group) {
 115                                 $l[] = '<b>' . $group['name'] . '</b>';
 116                         }
 117                 }
 118
 119                 foreach (DI::dba()->selectToArray('contact', ['name'], ['id' => $allowed_users]) as $contact) {
 120                         $l[] = $contact['name'];
 121                 }
 122
 123                 if (count($deny_groups)) {
 124                         $key = array_search(Group::FOLLOWERS, $deny_groups);
 125                         if ($key !== false) {
 126                                 $l[] = '<b><strike>' . DI::l10n()->t('Followers') . '</strike></b>';
 127                                 unset($deny_groups[$key]);
 128                         }
 129
 130                         $key = array_search(Group::MUTUALS, $deny_groups);
 131                         if ($key !== false) {
 132                                 $l[] = '<b><strike>' . DI::l10n()->t('Mutuals') . '</strike></b>';
 133                                 unset($deny_groups[$key]);
 134                         }
 135
 136                         foreach (DI::dba()->selectToArray('group', ['name'], ['id' => $allowed_groups]) as $group) {
 137                                 $l[] = '<b><strike>' . $group['name'] . '</strike></b>';
 138                         }
 139                 }
 140
 141                 foreach (DI::dba()->selectToArray('contact', ['name'], ['id' => $deny_users]) as $contact) {
 142                         $l[] = '<strike>' . $contact['name'] . '</strike>';
 143                 }
 144
 145                 if (!empty($l)) {
 146                         echo $o . implode(', ', $l);
 147                 } else {
 148                         echo $o . $receivers;
 149                 }
 150
 151                 exit();
 152         }
 153
 154         /**
 155          * Fetch a list of receivers
 156          *
 157          * @param int $uriId
 158          * @return string
 159          */
 160         private function fetchReceivers(int $uriId):string
 161         {
 162                 // We only fetch "to" and "cc", because "bcc" should never be displayed
 163                 $receivers = [];
 164                 foreach (Tag::getByURIId($uriId, [Tag::TO, Tag::CC]) as $receiver) {
 165                         if ($receiver['url'] == ActivityPub::PUBLIC_COLLECTION) {
 166                                 $receivers[$receiver['type']][] = DI::l10n()->t('Public');
 167                         } else {
 168                                 $apcontact = DBA::selectFirst('apcontact', ['name'], ['followers' => $receiver['url']]);
 169                                 if (!empty($apcontact['name'])) {
 170                                         $receivers[$receiver['type']][] = DI::l10n()->t('Followers (%s)', $apcontact['name']);
 171                                 } else {
 172                                         $receivers[$receiver['type']][] = $receiver['name'];
 173                                 }
 174                         }
 175                 }
 176
 177                 $output = '';
 178
 179                 foreach ($receivers as $type => $receiver) {
 180                         $max = DI::config()->get('system', 'max_receivers');
 181                         $total = count($receiver);
 182                         if ($total > $max) {
 183                                 $receiver = array_slice($receiver, 0, $max);
 184                                 $receiver[] = DI::l10n()->t('%d more', $total - $max);
 185                         }
 186                         switch ($type) {
 187                                 case Tag::TO:
 188                                         $output .= DI::l10n()->t('<b>To:</b> %s<br>', implode(', ', $receiver));
 189                                         break;
 190                                 case Tag::CC:
 191                                         $output .= DI::l10n()->t('<b>CC:</b> %s<br>', implode(', ', $receiver));
 192                                         break;
 193                         }
 194                 }
 195
 196                 return $output;
 197         }
 198 }