<?php
//    MyDMS. Document Management System
//    Copyright (C) 2010 Matteo Lucarelli
//    Copyright (C) 2010-2016 Uwe Steinmann
//
//    This program is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 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 General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with this program; if not, write to the Free Software
//    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

include("../inc/inc.Settings.php");
include("../inc/inc.Utils.php");
include("../inc/inc.LogInit.php");
include("../inc/inc.Language.php");
include("../inc/inc.Init.php");
include("../inc/inc.Extension.php");
include("../inc/inc.DBInit.php");
include("../inc/inc.ClassUI.php");
include("../inc/inc.Authentication.php");

$accessop = new SeedDMS_AccessOperation($dms, $user, $settings);
if (!$accessop->check_controller_access('RemoveDocumentFile', $_POST)) {
	UI::exitError(getMLText("document_title", array("documentname" => getMLText("invalid_doc_id"))),getMLText("access_denied"));
}

/* Check if the form data comes from a trusted request */
if(!checkFormKey('removedocumentfile')) {
	UI::exitError(getMLText("document_title", array("documentname" => getMLText("invalid_request_token"))),getMLText("invalid_request_token"));
}

if (!isset($_POST["documentid"]) || !is_numeric($_POST["documentid"]) || intval($_POST["documentid"])<1) {
	UI::exitError(getMLText("document_title", array("documentname" => getMLText("invalid_doc_id"))),getMLText("invalid_doc_id"));
}

$documentid = $_POST["documentid"];
$document = $dms->getDocument($documentid);

if (!is_object($document)) {
	UI::exitError(getMLText("document_title", array("documentname" => getMLText("invalid_doc_id"))),getMLText("invalid_doc_id"));
}

if (!isset($_POST["fileid"]) || !is_numeric($_POST["fileid"]) || intval($_POST["fileid"])<1) {
	UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("invalid_file_id"));
}

$fileid = $_POST["fileid"];
$file = $document->getDocumentFile($fileid);

if (!is_object($file)) {
	UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("invalid_file_id"));
}


if (($document->getAccessMode($user, 'removeDocumentFile') < M_ALL)&&($user->getID()!=$file->getUserID())) {
	UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("access_denied"));
}

/* Remove preview image. */
$previewer = new SeedDMS_Preview_Previewer($settings->_cacheDir);
$previewer->deletePreview($file, $settings->_previewWidthDetail);

if (!$document->removeDocumentFile($fileid)) {
	UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("error_occured"));
} else {
	// Send notification to subscribers.
	if($notifier) {
		$notifier->sendDeleteFileMail($file, $user);
	}
}

add_log_line("?documentid=".$documentid."&fileid=".$fileid);

header("Location:../out/out.ViewDocument.php?documentid=".$documentid."&currenttab=attachments");

?>