<?php
/**
* @brief importExport, a plugin for Dotclear 2
*
* @package Dotclear
* @subpackage Plugins
*
* @copyright Olivier Meunier & Association Dotclear
* @copyright GPL-2.0-only
*/
if (!defined('DC_RC_PATH')) {
return;
}
class dcImportFlat extends dcIeModule
{
protected $status = false;
public function setInfo()
{
$this->type = 'import';
$this->name = __('Flat file import');
$this->description = __('Imports a blog or a full Dotclear installation from flat file.');
}
public function process($do)
{
if ($do == 'single' || $do == 'full') {
$this->status = $do;
return;
}
$to_unlink = false;
# Single blog import
$files = $this->getPublicFiles();
$single_upl = null;
if (!empty($_POST['public_single_file']) && in_array($_POST['public_single_file'], $files)) {
$single_upl = false;
} elseif (!empty($_FILES['up_single_file'])) {
$single_upl = true;
}
if ($single_upl !== null) {
if ($single_upl) {
files::uploadStatus($_FILES['up_single_file']);
$file = DC_TPL_CACHE . '/' . md5(uniqid());
if (!move_uploaded_file($_FILES['up_single_file']['tmp_name'], $file)) {
throw new Exception(__('Unable to move uploaded file.'));
}
$to_unlink = true;
} else {
$file = $_POST['public_single_file'];
}
$unzip_file = '';
try {
# Try to unzip file
$unzip_file = $this->unzip($file);
if (false !== $unzip_file) {
$bk = new flatImport($this->core, $unzip_file);
}
# Else this is a normal file
else {
$bk = new flatImport($this->core, $file);
}
$bk->importSingle();
} catch (Exception $e) {
@unlink($unzip_file);
if ($to_unlink) {
@unlink($file);
}
throw $e;
}
@unlink($unzip_file);
if ($to_unlink) {
@unlink($file);
}
http::redirect($this->getURL() . '&do=single');
}
# Full import
$full_upl = null;
if (!empty($_POST['public_full_file']) && in_array($_POST['public_full_file'], $files)) {
$full_upl = false;
} elseif (!empty($_FILES['up_full_file'])) {
$full_upl = true;
}
if ($full_upl !== null && $this->core->auth->isSuperAdmin()) {
if (empty($_POST['your_pwd']) || !$this->core->auth->checkPassword($_POST['your_pwd'])) {
throw new Exception(__('Password verification failed'));
}
if ($full_upl) {
files::uploadStatus($_FILES['up_full_file']);
$file = DC_TPL_CACHE . '/' . md5(uniqid());
if (!move_uploaded_file($_FILES['up_full_file']['tmp_name'], $file)) {
throw new Exception(__('Unable to move uploaded file.'));
}
$to_unlink = true;
} else {
$file = $_POST['public_full_file'];
}
$unzip_file = '';
try {
# Try to unzip file
$unzip_file = $this->unzip($file);
if (false !== $unzip_file) {
$bk = new flatImport($this->core, $unzip_file);
}
# Else this is a normal file
else {
$bk = new flatImport($this->core, $file);
}
$bk->importFull();
} catch (Exception $e) {
@unlink($unzip_file);
if ($to_unlink) {
@unlink($file);
}
throw $e;
}
@unlink($unzip_file);
if ($to_unlink) {
@unlink($file);
}
http::redirect($this->getURL() . '&do=full');
}
header('content-type:text/plain');
var_dump($_POST);
exit;
}
public function gui()
{
if ($this->status == 'single') {
dcPage::success(__('Single blog successfully imported.'));
return;
}
if ($this->status == 'full') {
dcPage::success(__('Content successfully imported.'));
return;
}
$public_files = array_merge(['-' => ''], $this->getPublicFiles());
$has_files = (bool) (count($public_files) - 1);
echo
dcPage::jsJson(
'ie_import_flat_msg',
['confirm_full_import' => __('Are you sure you want to import a full backup file?')]
) .
dcPage::jsModuleLoad('importExport/js/import_flat.js');
echo
'<form action="' . $this->getURL(true) . '" method="post" enctype="multipart/form-data" class="fieldset">' .
'<h3>' . __('Single blog') . '</h3>' .
'<p>' . sprintf(__('This will import a single blog backup as new content in the current blog: <strong>%s</strong>.'), html::escapeHTML($this->core->blog->name)) . '</p>' .
'<p><label for="up_single_file">' . __('Upload a backup file') .
' (' . sprintf(__('maximum size %s'), files::size((int) DC_MAX_UPLOAD_SIZE)) . ')' . ' </label>' .
' <input type="file" id="up_single_file" name="up_single_file" size="20" />' .
'</p>';
if ($has_files) {
echo
'<p><label for="public_single_file" class="">' . __('or pick up a local file in your public directory') . ' </label> ' .
form::combo('public_single_file', $public_files) .
'</p>';
}
echo
'<p>' .
$this->core->formNonce() .
form::hidden(['do'], 1) .
form::hidden(['MAX_FILE_SIZE'], (int) DC_MAX_UPLOAD_SIZE) .
'<input type="submit" value="' . __('Import') . '" /></p>' .
'</form>';
if ($this->core->auth->isSuperAdmin()) {
echo
'<form action="' . $this->getURL(true) . '" method="post" enctype="multipart/form-data" id="formfull" class="fieldset">' .
'<h3>' . __('Multiple blogs') . '</h3>' .
'<p class="warning">' . __('This will reset all the content of your database, except users.') . '</p>' .
'<p><label for="up_full_file">' . __('Upload a backup file') . ' ' .
' (' . sprintf(__('maximum size %s'), files::size((int) DC_MAX_UPLOAD_SIZE)) . ')' . ' </label>' .
'<input type="file" id="up_full_file" name="up_full_file" size="20" />' .
'</p>';
if ($has_files) {
echo
'<p><label for="public_full_file">' . __('or pick up a local file in your public directory') . ' </label>' .
form::combo('public_full_file', $public_files) .
'</p>';
}
echo
'<p><label for="your_pwd" class="required"><abbr title="' . __('Required field') . '">*</abbr> ' . __('Your password:') . '</label>' .
form::password(
'your_pwd',
20,
255,
[
'extra_html' => 'required placeholder="' . __('Password') . '"',
'autocomplete' => 'current-password',
]
) . '</p>' .
'<p>' .
$this->core->formNonce() .
form::hidden(['do'], 1) .
form::hidden(['MAX_FILE_SIZE'], DC_MAX_UPLOAD_SIZE) .
'<input type="submit" value="' . __('Import') . '" /></p>' .
'</form>';
}
}
protected function getPublicFiles()
{
$public_files = [];
$dir = @dir($this->core->blog->public_path);
if ($dir) {
while (($entry = $dir->read()) !== false) {
$entry_path = $dir->path . '/' . $entry;
if (is_file($entry_path) && is_readable($entry_path)) {
# Do not test each zip file content here, its too long
if (substr($entry_path, -4) == '.zip') {
$public_files[$entry] = $entry_path;
} elseif (self::checkFileContent($entry_path)) {
$public_files[$entry] = $entry_path;
}
}
}
}
return $public_files;
}
protected static function checkFileContent($entry_path)
{
$ret = false;
$fp = fopen($entry_path, 'rb');
$ret = strpos(fgets($fp), '///DOTCLEAR|') === 0;
fclose($fp);
return $ret;
}
private function unzip($file)
{
$zip = new fileUnzip($file);
if ($zip->isEmpty()) {
$zip->close();
return false; //throw new Exception(__('File is empty or not a compressed file.'));
}
foreach ($zip->getFilesList() as $zip_file) {
# Check zipped file name
if (substr($zip_file, -4) != '.txt') {
continue;
}
# Check zipped file contents
$content = $zip->unzip($zip_file);
if (strpos($content, '///DOTCLEAR|') !== 0) {
unset($content);
continue;
}
$target = path::fullFromRoot($zip_file, dirname($file));
# Check existing files with same name
if (file_exists($target)) {
$zip->close();
unset($content);
throw new Exception(__('Another file with same name exists.'));
}
# Extract backup content
if (file_put_contents($target, $content) === false) {
$zip->close();
unset($content);
throw new Exception(__('Failed to extract backup file.'));
}
$zip->close();
unset($content);
# Return extracted file name
return $target;
}
$zip->close();
throw new Exception(__('No backup in compressed file.'));
}
}