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\Core\Session;
  26 use Friendica\Core\System;
  27 use Friendica\Database\DBA;
  28 use Friendica\DI;
  29 use Friendica\Model\APContact;
  30 use Friendica\Model\Group;
  31 use Friendica\Model\Item;
  32 use Friendica\Model\Post;
  33 use Friendica\Model\Tag;
  34 use Friendica\Model\User;
  35 use Friendica\Network\HTTPException;
  36 use Friendica\Protocol\ActivityPub;
  37
  38 /**
  39  * Outputs the permission tooltip HTML content for the provided item, photo or event id.
  40  */
  41 class PermissionTooltip extends \Friendica\BaseModule
  42 {
  43         protected function rawContent(array $request = [])
  44         {
  45                 $type = $this->parameters['type'];
  46                 $referenceId = $this->parameters['id'];
  47
  48                 $expectedTypes = ['item', 'photo', 'event'];
  49                 if (!in_array($type, $expectedTypes)) {
  50                         throw new HTTPException\BadRequestException(DI::l10n()->t('Wrong type "%s", expected one of: %s', $type, implode(', ', $expectedTypes)));
  51                 }
  52
  53                 $condition = ['id' => $referenceId, 'uid' => [0, Session::getLocalUser()]];
  54                 if ($type == 'item') {
  55                         $fields = ['uid', 'psid', 'private', 'uri-id'];
  56                         $model = Post::selectFirst($fields, $condition);
  57                 } else {
  58                         $fields = ['uid', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'];
  59                         $model = DBA::selectFirst($type, $fields, $condition);
  60                         $model['allow_cid'] = DI::aclFormatter()->expand($model['allow_cid']);
  61                         $model['allow_gid'] = DI::aclFormatter()->expand($model['allow_gid']);
  62                         $model['deny_cid']  = DI::aclFormatter()->expand($model['deny_cid']);
  63                         $model['deny_gid']  = DI::aclFormatter()->expand($model['deny_gid']);
  64                 }
  65
  66                 if (!DBA::isResult($model)) {
  67                         throw new HttpException\NotFoundException(DI::l10n()->t('Model not found'));
  68                 }
  69
  70                 if (isset($model['psid'])) {
  71                         $permissionSet = DI::permissionSet()->selectOneById($model['psid'], $model['uid']);
  72                         $model['allow_cid'] = $permissionSet->allow_cid;
  73                         $model['allow_gid'] = $permissionSet->allow_gid;
  74                         $model['deny_cid']  = $permissionSet->deny_cid;
  75                         $model['deny_gid']  = $permissionSet->deny_gid;
  76                 }
  77
  78                 // Kept for backwards compatiblity
  79                 Hook::callAll('lockview_content', $model);
  80
  81                 if ($type == 'item') {
  82                         $receivers = $this->fetchReceivers($model['uri-id']);
  83                         if (empty($receivers)) {
  84                                 switch ($model['private']) {
  85                                         case Item::PUBLIC:
  86                                                 $receivers = DI::l10n()->t('Public');
  87                                                 break;
  88
  89                                         case Item::UNLISTED:
  90                                                 $receivers = DI::l10n()->t('Unlisted');
  91                                                 break;
  92
  93                                         case Item::PRIVATE:
  94                                                 $receivers = DI::l10n()->t('Limited/Private');
  95                                                 break;
  96                                 }
  97                         }
  98                 } else {
  99                         $receivers = '';
 100                 }
 101
 102                 if (empty($model['allow_cid'])
 103                         && empty($model['allow_gid'])
 104                         && empty($model['deny_cid'])
 105                         && empty($model['deny_gid'])
 106                         && empty($receivers))
 107                 {
 108                         echo DI::l10n()->t('Remote privacy information not available.');
 109                         exit;
 110                 }
 111
 112                 $allowed_users  = $model['allow_cid'];
 113                 $allowed_groups = $model['allow_gid'];
 114                 $deny_users     = $model['deny_cid'];
 115                 $deny_groups    = $model['deny_gid'];
 116
 117                 $o = DI::l10n()->t('Visible to:') . '<br />';
 118                 $l = [];
 119
 120                 if (count($allowed_groups)) {
 121                         $key = array_search(Group::FOLLOWERS, $allowed_groups);
 122                         if ($key !== false) {
 123                                 $l[] = '<b>' . DI::l10n()->t('Followers') . '</b>';
 124                                 unset($allowed_groups[$key]);
 125                         }
 126
 127                         $key = array_search(Group::MUTUALS, $allowed_groups);
 128                         if ($key !== false) {
 129                                 $l[] = '<b>' . DI::l10n()->t('Mutuals') . '</b>';
 130                                 unset($allowed_groups[$key]);
 131                         }
 132
 133                         foreach (DI::dba()->selectToArray('group', ['name'], ['id' => $allowed_groups]) as $group) {
 134                                 $l[] = '<b>' . $group['name'] . '</b>';
 135                         }
 136                 }
 137
 138                 foreach (DI::dba()->selectToArray('contact', ['name'], ['id' => $allowed_users]) as $contact) {
 139                         $l[] = $contact['name'];
 140                 }
 141
 142                 if (count($deny_groups)) {
 143                         $key = array_search(Group::FOLLOWERS, $deny_groups);
 144                         if ($key !== false) {
 145                                 $l[] = '<b><strike>' . DI::l10n()->t('Followers') . '</strike></b>';
 146                                 unset($deny_groups[$key]);
 147                         }
 148
 149                         $key = array_search(Group::MUTUALS, $deny_groups);
 150                         if ($key !== false) {
 151                                 $l[] = '<b><strike>' . DI::l10n()->t('Mutuals') . '</strike></b>';
 152                                 unset($deny_groups[$key]);
 153                         }
 154
 155                         foreach (DI::dba()->selectToArray('group', ['name'], ['id' => $allowed_groups]) as $group) {
 156                                 $l[] = '<b><strike>' . $group['name'] . '</strike></b>';
 157                         }
 158                 }
 159
 160                 foreach (DI::dba()->selectToArray('contact', ['name'], ['id' => $deny_users]) as $contact) {
 161                         $l[] = '<strike>' . $contact['name'] . '</strike>';
 162                 }
 163
 164                 if (!empty($l)) {
 165                         echo $o . implode(', ', $l);
 166                 } else {
 167                         echo $o . $receivers;
 168                 }
 169                 System::exit();
 170         }
 171
 172         /**
 173          * Fetch a list of receivers
 174          *
 175          * @param int $uriId
 176          * @return string
 177          */
 178         private function fetchReceivers(int $uriId): string
 179         {
 180                 $own_url = '';
 181                 $uid = Session::getLocalUser();
 182                 if ($uid) {
 183                         $owner = User::getOwnerDataById($uid);
 184                         if (!empty($owner['url'])) {
 185                                 $own_url = $owner['url'];
 186                         }
 187                 }
 188
 189                 $receivers = [];
 190                 foreach (Tag::getByURIId($uriId, [Tag::TO, Tag::CC, Tag::BCC]) as $receiver) {
 191                         // We only display BCC when it contains the current user
 192                         if (($receiver['type'] == Tag::BCC) && ($receiver['url'] != $own_url)) {
 193                                 continue;
 194                         }
 195
 196                         switch (Tag::getTargetType($receiver['url'], false)) {
 197                                 case Tag::PUBLIC_COLLECTION:
 198                                         $receivers[$receiver['type']][] = DI::l10n()->t('Public');
 199                                         break;
 200                                 case Tag::GENERAL_COLLECTION:
 201                                         $receivers[$receiver['type']][] = DI::l10n()->t('Collection (%s)', $receiver['name']);
 202                                         break;
 203                                 case Tag::FOLLOWER_COLLECTION:
 204                                         $apcontact = DBA::selectFirst('apcontact', ['name'], ['followers' => $receiver['url']]);
 205                                         $receivers[$receiver['type']][] = DI::l10n()->t('Followers (%s)', $apcontact['name'] ?? $receiver['name']);
 206                                         break;
 207                                 case Tag::ACCOUNT:
 208                                         $apcontact = APContact::getByURL($receiver['url'], false);
 209                                         $receivers[$receiver['type']][] = $apcontact['name'] ?? $receiver['name'];
 210                                         break;
 211                                 default:
 212                                         $receivers[$receiver['type']][] = $receiver['name'];
 213                                         break;
 214                         }
 215                 }
 216
 217                 $output = '';
 218
 219                 foreach ($receivers as $type => $receiver) {
 220                         $max = DI::config()->get('system', 'max_receivers');
 221                         $total = count($receiver);
 222                         if ($total > $max) {
 223                                 $receiver = array_slice($receiver, 0, $max);
 224                                 $receiver[] = DI::l10n()->t('%d more', $total - $max);
 225                         }
 226                         switch ($type) {
 227                                 case Tag::TO:
 228                                         $output .= DI::l10n()->t('<b>To:</b> %s<br>', implode(', ', $receiver));
 229                                         break;
 230                                 case Tag::CC:
 231                                         $output .= DI::l10n()->t('<b>CC:</b> %s<br>', implode(', ', $receiver));
 232                                         break;
 233                                 case Tag::BCC:
 234                                         $output .= DI::l10n()->t('<b>BCC:</b> %s<br>', implode(', ', $receiver));
 235                                         break;
 236                         }
 237                 }
 238
 239                 return $output;
 240         }
 241 }