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