Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @file src/Modules/Settings/UserExport.php
*/
namespace Friendica\Module\Settings;
use Friendica\App;
use Friendica\Core\Hook;
use Friendica\Core\L10n;
use Friendica\Core\Renderer;
use Friendica\Database\DBA;
use Friendica\Database\DBStructure;
use Friendica\DI;
use Friendica\Module\BaseSettingsModule;
/**
* Module to export user data
**/
class UserExport extends BaseSettingsModule
{
/**
* Handle the request to export data.
* At the moment one can export three different data set
* 1. The profile data that can be used by uimport to resettle
* to a different Friendica instance
* 2. The entire data-set, profile plus postings
* 3. A list of contacts as CSV file similar to the export of Mastodon
*
* If there is an action required through the URL / path, react
* accordingly and export the requested data.
**/
public static function content(array $parameters = [])
{
parent::content($parameters);
/**
* options shown on "Export personal data" page
* list of array( 'link url', 'link text', 'help text' )
*/
$options = [
['settings/userexport/account', L10n::t('Export account'), 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.')],
['settings/userexport/backup', L10n::t('Export all'), 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")],
['settings/userexport/contact', L10n::t('Export Contacts to CSV'), L10n::t("Export the list of the accounts you are following as CSV file. Compatible to e.g. Mastodon.")],
];
Hook::callAll('uexport_options', $options);
$tpl = Renderer::getMarkupTemplate("settings/userexport.tpl");
return Renderer::replaceMacros($tpl, [
'$title' => L10n::t('Export personal data'),
'$options' => $options
]);
}
/**
* raw content generated for the different choices made
* by the user. At the moment this returns a JSON file
* to the browser which then offers a save / open dialog
* to the user.
**/
public static function rawContent(array $parameters = [])
{
$args = DI::args();
if ($args->getArgc() == 3) {
// @TODO Replace with router-provided arguments
$action = $args->get(2);
$user = DI::app()->user;
switch ($action) {
case "backup":
header("Content-type: application/json");
header('Content-Disposition: attachment; filename="' . $user['nickname'] . '.' . $action . '"');
self::exportAll(DI::app());
exit();
break;
case "account":
header("Content-type: application/json");
header('Content-Disposition: attachment; filename="' . $user['nickname'] . '.' . $action . '"');
self::exportAccount(DI::app());
exit();
break;
case "contact":
header("Content-type: application/csv");
header('Content-Disposition: attachment; filename="' . $user['nickname'] . '-contacts.csv'. '"');
self::exportContactsAsCSV();
exit();
break;
default:
exit();
}
}
}
private static function exportMultiRow(string $query)
{
$dbStructure = DBStructure::definition(DI::app()->getBasePath(), false);
preg_match("/\s+from\s+`?([a-z\d_]+)`?/i", $query, $match);
$table = $match[1];
$result = [];
$rows = DBA::p($query);
while ($row = DBA::fetch($rows)) {
$p = [];
foreach ($row as $k => $v) {
switch ($dbStructure[$table]['fields'][$k]['type']) {
case 'datetime':
$p[$k] = $v ?? DBA::NULL_DATETIME;
break;
default:
$p[$k] = $v;
break;
}
}
$result[] = $p;
}
DBA::close($rows);
return $result;
}
private static function exportRow(string $query)
{
$dbStructure = DBStructure::definition(DI::app()->getBasePath(), false);
preg_match("/\s+from\s+`?([a-z\d_]+)`?/i", $query, $match);
$table = $match[1];
$result = [];
$r = q($query);
if (DBA::isResult($r)) {
foreach ($r as $rr) {
foreach ($rr as $k => $v) {
switch ($dbStructure[$table]['fields'][$k]['type']) {
case 'datetime':
$result[$k] = $v ?? DBA::NULL_DATETIME;
break;
default:
$result[$k] = $v;
break;
}
}
}
}
return $result;
}
/**
* Export a list of the contacts as CSV file as e.g. Mastodon and Pleroma are doing.
**/
private static function exportContactsAsCSV()
{
// write the table header (like Mastodon)
echo "Account address, Show boosts\n";
// get all the contacts
$contacts = DBA::select('contact', ['addr'], ['uid' => $_SESSION['uid'], 'self' => false, 'rel' => [1,3], 'deleted' => false]);
while ($contact = DBA::fetch($contacts)) {
echo $contact['addr'] . ", true\n";
}
DBA::close($contacts);
}
private static function exportAccount(App $a)
{
$user = self::exportRow(
sprintf("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval(local_user()))
);
$contact = self::exportMultiRow(
sprintf("SELECT * FROM `contact` WHERE `uid` = %d ", intval(local_user()))
);
$profile = self::exportMultiRow(
sprintf("SELECT * FROM `profile` WHERE `uid` = %d ", intval(local_user()))
);
$photo = self::exportMultiRow(
sprintf("SELECT * FROM `photo` WHERE uid = %d AND profile = 1", intval(local_user()))
);
foreach ($photo as &$p) {
$p['data'] = bin2hex($p['data']);
}
$pconfig = self::exportMultiRow(
sprintf("SELECT * FROM `pconfig` WHERE uid = %d", intval(local_user()))
);
$group = self::exportMultiRow(
sprintf("SELECT * FROM `group` WHERE uid = %d", intval(local_user()))
);
$group_member = self::exportMultiRow(
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()))
);
$output = [
'version' => FRIENDICA_VERSION,
'schema' => DB_UPDATE_VERSION,
'baseurl' => DI::baseUrl(),
'user' => $user,
'contact' => $contact,
'profile' => $profile,
'photo' => $photo,
'pconfig' => $pconfig,
'group' => $group,
'group_member' => $group_member,
];
echo json_encode($output, JSON_PARTIAL_OUTPUT_ON_ERROR);
}
/**
* echoes account data and items as separated json, one per line
*
* @param App $a
* @throws Exception
*/
private static function exportAll(App $a)
{
self::exportAccount($a);
echo "\n";
$total = DBA::count('item', ['uid' => local_user()]);
// chunk the output to avoid exhausting memory
for ($x = 0; $x < $total; $x += 500) {
$r = q("SELECT * FROM `item` WHERE `uid` = %d LIMIT %d, %d",
intval(local_user()),
intval($x),
intval(500)
);
$output = ['item' => $r];
echo json_encode($output, JSON_PARTIAL_OUTPUT_ON_ERROR). "\n";
}
}
}