src/Module/Settings/UserExport.php

   1 <?php
   2 /**
   3  * @file src/Modules/Settings/UserExport.php
   4  */
   5
   6 namespace Friendica\Module\Settings;
   7
   8 use Friendica\App;
   9 use Friendica\Core\Hook;
  10 use Friendica\Core\Renderer;
  11 use Friendica\Database\DBA;
  12 use Friendica\Database\DBStructure;
  13 use Friendica\DI;
  14 use Friendica\Module\BaseSettingsModule;
  15
  16 /**
  17  * Module to export user data
  18  **/
  19 class UserExport extends BaseSettingsModule
  20 {
  21         /**
  22          * Handle the request to export data.
  23          * At the moment one can export three different data set
  24          * 1. The profile data that can be used by uimport to resettle
  25          *    to a different Friendica instance
  26          * 2. The entire data-set, profile plus postings
  27          * 3. A list of contacts as CSV file similar to the export of Mastodon
  28          *
  29          * If there is an action required through the URL / path, react
  30          * accordingly and export the requested data.
  31          **/
  32         public static function content(array $parameters = [])
  33         {
  34                 parent::content($parameters);
  35
  36                 /**
  37                  * options shown on "Export personal data" page
  38                  * list of array( 'link url', 'link text', 'help text' )
  39                  */
  40                 $options = [
  41                         ['settings/userexport/account', DI::l10n()->t('Export account'), DI::l10n()->t('Export your account info and contacts. Use this to make a backup of your account and/or to move it to another server.')],
  42                         ['settings/userexport/backup', DI::l10n()->t('Export all'), DI::l10n()->t("Export your accout info, contacts and all your items as json. Could be a very big file, and could take a lot of time. Use this to make a full backup of your account \x28photos are not exported\x29")],
  43                         ['settings/userexport/contact', DI::l10n()->t('Export Contacts to CSV'), DI::l10n()->t("Export the list of the accounts you are following as CSV file. Compatible to e.g. Mastodon.")],
  44                 ];
  45                 Hook::callAll('uexport_options', $options);
  46
  47                 $tpl = Renderer::getMarkupTemplate("settings/userexport.tpl");
  48                 return Renderer::replaceMacros($tpl, [
  49                         '$title' => DI::l10n()->t('Export personal data'),
  50                         '$options' => $options
  51                 ]);
  52         }
  53         /**
  54          * raw content generated for the different choices made
  55          * by the user. At the moment this returns a JSON file
  56          * to the browser which then offers a save / open dialog
  57          * to the user.
  58          **/
  59         public static function rawContent(array $parameters = [])
  60         {
  61                 $args = DI::args();
  62                 if ($args->getArgc() == 3) {
  63                         // @TODO Replace with router-provided arguments
  64                         $action = $args->get(2);
  65                         $user = DI::app()->user;
  66                         switch ($action) {
  67                                 case "backup":
  68                                         header("Content-type: application/json");
  69                                         header('Content-Disposition: attachment; filename="' . $user['nickname'] . '.' . $action . '"');
  70                                         self::exportAll(DI::app());
  71                                         exit();
  72                                         break;
  73                                 case "account":
  74                                         header("Content-type: application/json");
  75                                         header('Content-Disposition: attachment; filename="' . $user['nickname'] . '.' . $action . '"');
  76                                         self::exportAccount(DI::app());
  77                                         exit();
  78                                         break;
  79                                 case "contact":
  80                                         header("Content-type: application/csv");
  81                                         header('Content-Disposition: attachment; filename="' . $user['nickname'] . '-contacts.csv'. '"');
  82                                         self::exportContactsAsCSV();
  83                                         exit();
  84                                         break;
  85                                 default:
  86                                         exit();
  87                         }
  88                 }
  89         }
  90         private static function exportMultiRow(string $query)
  91         {
  92                 $dbStructure = DBStructure::definition(DI::app()->getBasePath(), false);
  93
  94                 preg_match("/\s+from\s+`?([a-z\d_]+)`?/i", $query, $match);
  95                 $table = $match[1];
  96
  97                 $result = [];
  98                 $rows = DBA::p($query);
  99                 while ($row = DBA::fetch($rows)) {
 100                         $p = [];
 101                         foreach ($row as $k => $v) {
 102                                 switch ($dbStructure[$table]['fields'][$k]['type']) {
 103                                         case 'datetime':
 104                                                 $p[$k] = $v ?? DBA::NULL_DATETIME;
 105                                                 break;
 106                                         default:
 107                                                 $p[$k] = $v;
 108                                                 break;
 109                                 }
 110                         }
 111                         $result[] = $p;
 112                 }
 113                 DBA::close($rows);
 114                 return $result;
 115         }
 116
 117         private static function exportRow(string $query)
 118         {
 119                 $dbStructure = DBStructure::definition(DI::app()->getBasePath(), false);
 120
 121                 preg_match("/\s+from\s+`?([a-z\d_]+)`?/i", $query, $match);
 122                 $table = $match[1];
 123
 124                 $result = [];
 125                 $r = q($query);
 126                 if (DBA::isResult($r)) {
 127
 128                         foreach ($r as $rr) {
 129                                 foreach ($rr as $k => $v) {
 130                                         switch ($dbStructure[$table]['fields'][$k]['type']) {
 131                                                 case 'datetime':
 132                                                         $result[$k] = $v ?? DBA::NULL_DATETIME;
 133                                                         break;
 134                                                 default:
 135                                                         $result[$k] = $v;
 136                                                         break;
 137                                         }
 138                                 }
 139                         }
 140                 }
 141                 return $result;
 142         }
 143
 144         /**
 145          * Export a list of the contacts as CSV file as e.g. Mastodon and Pleroma are doing.
 146          **/
 147         private static function exportContactsAsCSV()
 148         {
 149                 // write the table header (like Mastodon)
 150                 echo "Account address, Show boosts\n";
 151                 // get all the contacts
 152                 $contacts = DBA::select('contact', ['addr'], ['uid' => $_SESSION['uid'], 'self' => false, 'rel' => [1,3], 'deleted' => false]);
 153                 while ($contact = DBA::fetch($contacts)) {
 154                         echo $contact['addr'] . ", true\n";
 155                 }
 156                 DBA::close($contacts);
 157         }
 158         private static function exportAccount(App $a)
 159         {
 160                 $user = self::exportRow(
 161                         sprintf("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval(local_user()))
 162                 );
 163
 164                 $contact = self::exportMultiRow(
 165                         sprintf("SELECT * FROM `contact` WHERE `uid` = %d ", intval(local_user()))
 166                 );
 167
 168
 169                 $profile = self::exportMultiRow(
 170                         sprintf("SELECT * FROM `profile` WHERE `uid` = %d ", intval(local_user()))
 171                 );
 172
 173                 $photo = self::exportMultiRow(
 174                         sprintf("SELECT * FROM `photo` WHERE uid = %d AND profile = 1", intval(local_user()))
 175                 );
 176                 foreach ($photo as &$p) {
 177                         $p['data'] = bin2hex($p['data']);
 178                 }
 179
 180                 $pconfig = self::exportMultiRow(
 181                         sprintf("SELECT * FROM `pconfig` WHERE uid = %d", intval(local_user()))
 182                 );
 183
 184                 $group = self::exportMultiRow(
 185                         sprintf("SELECT * FROM `group` WHERE uid = %d", intval(local_user()))
 186                 );
 187
 188                 $group_member = self::exportMultiRow(
 189                         sprintf("SELECT `group_member`.`gid`, `group_member`.`contact-id` FROM `group_member` INNER JOIN `group` ON `group`.`id` = `group_member`.`gid` WHERE `group`.`uid` = %d", intval(local_user()))
 190                 );
 191
 192                 $output = [
 193                         'version' => FRIENDICA_VERSION,
 194                         'schema' => DB_UPDATE_VERSION,
 195                         'baseurl' => DI::baseUrl(),
 196                         'user' => $user,
 197                         'contact' => $contact,
 198                         'profile' => $profile,
 199                         'photo' => $photo,
 200                         'pconfig' => $pconfig,
 201                         'group' => $group,
 202                         'group_member' => $group_member,
 203                 ];
 204
 205                 echo json_encode($output, JSON_PARTIAL_OUTPUT_ON_ERROR);
 206         }
 207
 208         /**
 209          * echoes account data and items as separated json, one per line
 210          *
 211          * @param App $a
 212          * @throws \Exception
 213          */
 214         private static function exportAll(App $a)
 215         {
 216                 self::exportAccount($a);
 217                 echo "\n";
 218
 219                 $total = DBA::count('item', ['uid' => local_user()]);
 220                 // chunk the output to avoid exhausting memory
 221
 222                 for ($x = 0; $x < $total; $x += 500) {
 223                         $r = q("SELECT * FROM `item` WHERE `uid` = %d LIMIT %d, %d",
 224                                 intval(local_user()),
 225                                 intval($x),
 226                                 intval(500)
 227                         );
 228
 229                         $output = ['item' => $r];
 230                         echo json_encode($output, JSON_PARTIAL_OUTPUT_ON_ERROR). "\n";
 231                 }
 232         }
 233 }