Files
document-server-integration/web/documentserver-example/php/webeditor-ajax.php
Sergey Linnik 8050ec572a apache
2020-09-02 12:06:52 +03:00

315 lines
9.8 KiB
PHP

<?php
/**
*
* (c) Copyright Ascensio System SIA 2020
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
/**
* WebEditor AJAX Process Execution.
*/
require_once( dirname(__FILE__) . '/config.php' );
require_once( dirname(__FILE__) . '/ajax.php' );
require_once( dirname(__FILE__) . '/common.php' );
require_once( dirname(__FILE__) . '/functions.php' );
require_once( dirname(__FILE__) . '/jwtmanager.php' );
$_trackerStatus = array(
0 => 'NotFound',
1 => 'Editing',
2 => 'MustSave',
3 => 'Corrupted',
4 => 'Closed'
);
if (isset($_GET["type"]) && !empty($_GET["type"])) { //Checks if type value exists
$response_array;
@header( 'Content-Type: application/json; charset==utf-8');
@header( 'X-Robots-Tag: noindex' );
@header( 'X-Content-Type-Options: nosniff' );
nocache_headers();
sendlog(serialize($_GET), "webedior-ajax.log");
$type = $_GET["type"];
switch($type) { //Switch case for value of type
case "upload":
$response_array = upload();
$response_array['status'] = isset($response_array['error']) ? 'error' : 'success';
die (json_encode($response_array));
case "convert":
$response_array = convert();
$response_array['status'] = 'success';
die (json_encode($response_array));
case "track":
$response_array = track();
$response_array['status'] = 'success';
die (json_encode($response_array));
case "delete":
$response_array = delete();
$response_array['status'] = 'success';
die (json_encode($response_array));
default:
$response_array['status'] = 'error';
$response_array['error'] = '404 Method not found';
die(json_encode($response_array));
}
}
function upload() {
$result; $filename;
if ($_FILES['files']['error'] > 0) {
$result["error"] = 'Error ' . json_encode($_FILES['files']['error']);
return $result;
}
$tmp = $_FILES['files']['tmp_name'];
if (empty(tmp)) {
$result["error"] = 'No file sent';
return $result;
}
if (is_uploaded_file($tmp))
{
$filesize = $_FILES['files']['size'];
$ext = strtolower('.' . pathinfo($_FILES['files']['name'], PATHINFO_EXTENSION));
if ($filesize <= 0 || $filesize > $GLOBALS['FILE_SIZE_MAX']) {
$result["error"] = 'File size is incorrect';
return $result;
}
if (!in_array($ext, getFileExts())) {
$result["error"] = 'File type is not supported';
return $result;
}
$filename = GetCorrectName($_FILES['files']['name']);
if (!move_uploaded_file($tmp, getStoragePath($filename)) ) {
$result["error"] = 'Upload failed';
return $result;
}
createMeta($filename);
} else {
$result["error"] = 'Upload failed';
return $result;
}
$result["filename"] = $filename;
return $result;
}
function track() {
sendlog("Track START", "webedior-ajax.log");
sendlog("_GET params: " . serialize( $_GET ), "webedior-ajax.log");
global $_trackerStatus;
$data;
$result["error"] = 0;
if (($body_stream = file_get_contents('php://input'))===FALSE) {
$result["error"] = "Bad Request";
return $result;
}
$data = json_decode($body_stream, TRUE); //json_decode - PHP 5 >= 5.2.0
if ($data === NULL) {
$result["error"] = "Bad Response";
return $result;
}
sendlog("InputStream data: " . serialize($data), "webedior-ajax.log");
if (isJwtEnabled()) {
sendlog("jwt enabled, checking tokens", "webedior-ajax.log");
$inHeader = false;
$token = "";
if (!empty($data["token"])) {
$token = jwtDecode($data["token"]);
} elseif (!empty($_SERVER['HTTP_AUTHORIZATION'])) {
$token = jwtDecode(substr($_SERVER['HTTP_AUTHORIZATION'], strlen("Bearer ")));
$inHeader = true;
} else {
sendlog("jwt token wasn't found in body or headers", "webedior-ajax.log");
$result["error"] = "Expected JWT";
return $result;
}
if (empty($token)) {
sendlog("token was found but signature is invalid", "webedior-ajax.log");
$result["error"] = "Invalid JWT signature";
return $result;
}
$data = json_decode($token, true);
if ($inHeader) $data = $data["payload"];
}
$status = $_trackerStatus[$data["status"]];
switch ($status) {
case "MustSave":
case "Corrupted":
$userAddress = $_GET["userAddress"];
$fileName = $_GET["fileName"];
$downloadUri = $data["url"];
$curExt = strtolower('.' . pathinfo($fileName, PATHINFO_EXTENSION));
$downloadExt = strtolower('.' . pathinfo($downloadUri, PATHINFO_EXTENSION));
if ($downloadExt != $curExt) {
$key = getDocEditorKey(downloadUri);
try {
sendlog("Convert " . $downloadUri . " from " . $downloadExt . " to " . $curExt, "webedior-ajax.log");
$convertedUri;
$percent = GetConvertedUri($downloadUri, $downloadExt, $curExt, $key, FALSE, $convertedUri);
$downloadUri = $convertedUri;
} catch (Exception $e) {
sendlog("Convert after save ".$e->getMessage(), "webedior-ajax.log");
$result["error"] = "error: " . $e->getMessage();
return $result;
}
}
$saved = 1;
if (($new_data = file_get_contents($downloadUri)) === FALSE) {
$saved = 0;
} else {
$storagePath = getStoragePath($fileName, $userAddress);
$histDir = getHistoryDir($storagePath);
$verDir = getVersionDir($histDir, getFileVersion($histDir) + 1);
mkdir($verDir);
copy($storagePath, $verDir . DIRECTORY_SEPARATOR . "prev" . $downloadExt);
file_put_contents($storagePath, $new_data, LOCK_EX);
if ($changesData = file_get_contents($data["changesurl"])) {
file_put_contents($verDir . DIRECTORY_SEPARATOR . "diff.zip", $changesData, LOCK_EX);
}
$histData = $data["changeshistory"];
if (empty($histData)) {
$histData = json_encode($data["history"], JSON_PRETTY_PRINT);
}
if (!empty($histData)) {
file_put_contents($verDir . DIRECTORY_SEPARATOR . "changes.json", $histData, LOCK_EX);
}
file_put_contents($verDir . DIRECTORY_SEPARATOR . "key.txt", $data["key"], LOCK_EX);
}
$result["c"] = "saved";
$result["status"] = $saved;
break;
}
sendlog("track result: " . serialize($result), "webedior-ajax.log");
return $result;
}
function convert() {
$fileName = $_GET["filename"];
$extension = strtolower(pathinfo($fileName, PATHINFO_EXTENSION));
$internalExtension = trim(getInternalExtension($fileName),'.');
if (in_array("." + $extension, $GLOBALS['DOC_SERV_CONVERT']) && $internalExtension != "") {
$fileUri = $_GET["fileUri"];
if ($fileUri == NULL || $fileUri == "") {
$fileUri = FileUri($fileName, TRUE);
}
$key = getDocEditorKey($fileName);
$newFileUri;
$result;
$percent;
try {
$percent = GetConvertedUri($fileUri, $extension, $internalExtension, $key, TRUE, $newFileUri);
}
catch (Exception $e) {
$result["error"] = "error: " . $e->getMessage();
return $result;
}
if ($percent != 100)
{
$result["step"] = $percent;
$result["filename"] = $fileName;
$result["fileUri"] = $fileUri;
return $result;
}
$baseNameWithoutExt = substr($fileName, 0, strlen($fileName) - strlen($extension) - 1);
$newFileName = GetCorrectName($baseNameWithoutExt . "." . $internalExtension);
if (($data = file_get_contents(str_replace(" ","%20",$newFileUri))) === FALSE) {
$result["error"] = 'Bad Request';
return $result;
} else {
file_put_contents(getStoragePath($newFileName), $data, LOCK_EX);
createMeta($newFileName);
}
$stPath = getStoragePath($fileName);
unlink($stPath);
delTree(getHistoryDir($stPath));
$fileName = $newFileName;
}
$result["filename"] = $fileName;
return $result;
}
function delete() {
try {
$fileName = $_GET["fileName"];
$filePath = getStoragePath($fileName);
unlink($filePath);
delTree(getHistoryDir($filePath));
}
catch (Exception $e) {
sendlog("Deletion ".$e->getMessage(), "webedior-ajax.log");
$result["error"] = "error: " . $e->getMessage();
return $result;
}
}
function delTree($dir) {
if (!file_exists($dir) || !is_dir($dir)) return;
$files = array_diff(scandir($dir), array('.','..'));
foreach ($files as $file) {
(is_dir("$dir/$file")) ? delTree("$dir/$file") : unlink("$dir/$file");
}
return rmdir($dir);
}
?>