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friendica_2020-09-1_sharedH.../mod/wall_attach.php

143 lines
4.3 KiB
PHP

<?php
/**
* @copyright Copyright (C) 2010-2022, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
use Friendica\App;
use Friendica\Core\Logger;
use Friendica\Core\System;
use Friendica\Database\DBA;
use Friendica\DI;
use Friendica\Model\Attach;
use Friendica\Model\User;
use Friendica\Util\Strings;
function wall_attach_post(App $a)
{
$isJson = (!empty($_GET['response']) && $_GET['response'] == 'json');
if (DI::args()->getArgc() > 1) {
$nick = DI::args()->getArgv()[1];
$owner = User::getOwnerDataByNick($nick);
if (!DBA::isResult($owner)) {
Logger::warning('owner is not a valid record:', ['owner' => $owner, 'nick' => $nick]);
if ($isJson) {
System::jsonExit(['error' => DI::l10n()->t('Invalid request.')]);
}
return;
}
} else {
Logger::warning('Argument count is zero or one (invalid)');
if ($isJson) {
System::jsonExit(['error' => DI::l10n()->t('Invalid request.')]);
}
return;
}
$can_post = false;
$page_owner_uid = $owner['uid'];
$page_owner_cid = $owner['id'];
$community_page = $owner['page-flags'] == User::PAGE_FLAGS_COMMUNITY;
if (DI::userSession()->getLocalUserId() && (DI::userSession()->getLocalUserId() == $page_owner_uid)) {
$can_post = true;
} elseif ($community_page && !empty(DI::userSession()->getRemoteContactID($page_owner_uid))) {
$contact_id = DI::userSession()->getRemoteContactID($page_owner_uid);
$can_post = DBA::exists('contact', ['blocked' => false, 'pending' => false, 'id' => $contact_id, 'uid' => $page_owner_uid]);
}
if (!$can_post) {
Logger::warning('User does not have required permissions', ['contact_id' => $contact_id, 'page_owner_uid' => $page_owner_uid]);
if ($isJson) {
System::jsonExit(['error' => DI::l10n()->t('Permission denied.')]);
}
DI::sysmsg()->addNotice(DI::l10n()->t('Permission denied.'));
System::exit();
}
if (empty($_FILES['userfile'])) {
Logger::warning('No file uploaded (empty userfile)');
if ($isJson) {
System::jsonExit(['error' => DI::l10n()->t('Invalid request.')]);
}
System::exit();
}
$tempFileName = $_FILES['userfile']['tmp_name'];
$fileName = basename($_FILES['userfile']['name']);
$fileSize = intval($_FILES['userfile']['size']);
$maxFileSize = DI::config()->get('system', 'maxfilesize');
/*
* Found html code written in text field of form, when trying to upload a
* file with filesize greater than upload_max_filesize. Cause is unknown.
* Then Filesize gets <= 0.
*/
if ($fileSize <= 0) {
$msg = DI::l10n()->t('Sorry, maybe your upload is bigger than the PHP configuration allows') . '<br />' . DI::l10n()->t('Or - did you try to upload an empty file?');
Logger::warning($msg, ['fileSize' => $fileSize]);
@unlink($tempFileName);
if ($isJson) {
System::jsonExit(['error' => $msg]);
} else {
DI::sysmsg()->addNotice($msg);
}
System::exit();
}
if ($maxFileSize && $fileSize > $maxFileSize) {
$msg = DI::l10n()->t('File exceeds size limit of %s', Strings::formatBytes($maxFileSize));
Logger::warning($msg, ['fileSize' => $fileSize]);
@unlink($tempFileName);
if ($isJson) {
System::jsonExit(['error' => $msg]);
} else {
echo $msg . '<br />';
}
System::exit();
}
$newid = Attach::storeFile($tempFileName, $page_owner_uid, $fileName, '<' . $page_owner_cid . '>');
@unlink($tempFileName);
if ($newid === false) {
$msg = DI::l10n()->t('File upload failed.');
Logger::warning($msg);
if ($isJson) {
System::jsonExit(['error' => $msg]);
} else {
echo $msg . '<br />';
}
System::exit();
}
if ($isJson) {
System::jsonExit(['ok' => true, 'id' => $newid]);
}
$lf = "\n";
echo $lf . $lf . '[attachment]' . $newid . '[/attachment]' . $lf;
System::exit();
// NOTREACHED
}