java-spring: https

fix: remove on develop pull request

.github/workflows/lint-java.yml

@@ -6,7 +6,7 @@ on:
     branches: [master, main]
     paths: ['web/documentserver-example/java/**']
   pull_request:
-    branches: [master, main, develop]
+    branches: [master, main]
     paths: ['web/documentserver-example/java/**']
 
 jobs:

.github/workflows/lint-nodejs.yml

@@ -6,7 +6,7 @@ on:
     branches: [master, main]
     paths: ['web/documentserver-example/nodejs/**']
   pull_request:
-    branches: [master, main, develop]
+    branches: [master, main]
     paths: ['web/documentserver-example/nodejs/**']
 
 env:

.github/workflows/lint-php.yml

@@ -6,7 +6,7 @@ on:
     branches: [master, main]
     paths: ['web/documentserver-example/php/**']
   pull_request:
-    branches: [master, main, develop]
+    branches: [master, main]
     paths: ['web/documentserver-example/php/**']
 
 jobs:
@@ -22,8 +22,10 @@ jobs:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.1'
+          php-version: '8.2'
           tools: cs2pr, phpcs
           
       - name: Run phpcs
-        run: phpcs -q --extensions=php,module,inc,install,test,profile,theme,css,info,txt,md,yml --ignore=node_modules,bower_components,vendor ./
+        run: |
+          phpcs --version
+          phpcs -q --extensions=php,module,inc,install,test,profile,theme,info --ignore=node_modules,bower_components,vendor,css,js,lib --standard=./ruleset.xml ./

.github/workflows/lint-python.yml

@@ -6,7 +6,7 @@ on:
     branches: [master, main]
     paths: ['web/documentserver-example/python/**']
   pull_request:
-    branches: [master, main, develop]
+    branches: [master, main]
     paths: ['web/documentserver-example/python/**']
 
 jobs:

.github/workflows/lint-ruby.yml

@@ -6,7 +6,7 @@ on:
     branches: [master, main]
     paths: ['web/documentserver-example/ruby/**']
   pull_request:
-    branches: [master, main, develop]
+    branches: [master, main]
     paths: ['web/documentserver-example/ruby/**']
 
 jobs:

.github/workflows/lint-spring.yml

@@ -6,7 +6,7 @@ on:
     branches: [master, main]
     paths: ['web/documentserver-example/java-spring/**']
   pull_request:
-    branches: [master, main, develop]
+    branches: [master, main]
     paths: ['web/documentserver-example/java-spring/**']
 
 jobs:

3rd-Party.license

@@ -250,6 +250,14 @@ jQuery.UI     - jQuery UI is an open source library of interface components —
 License:        MIT
 License File:   jQuery.UI.license
 
+JWT           - JSON Web Token implementation (https://github.com/firebase/php-jwt/blob/master/LICENSE)
+License:        BSD-3-Clause
+License File:   jwt.license
+
+PHP_CodeSniffer - PHP_CodeSniffer is a set of two PHP scripts; the main phpcs script that tokenizes PHP, JavaScript and CSS files to detect violations of a defined coding standard, and a second phpcbf script to automatically correct coding standard violations. PHP_CodeSniffer is an essential development tool that ensures your code remains clean and consistent. (https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt)
+License:        BSD-3-Clause
+License File:   PHP_CodeSniffer.license
+
 
 web/documentserver-example/ruby
 

CHANGELOG.md

@@ -1,5 +1,7 @@
 # Change Log
 
+- php: linter refactoring
+
 ## 1.5.0
 - nodejs: added wopi putRelativeFile action
 - nodejs: wopi editnew action for exisiting file

web/documentserver-example/java-spring/pom.xml

@@ -35,6 +35,14 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-data-jpa</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.security</groupId>
+			<artifactId>spring-security-config</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.security</groupId>
+			<artifactId>spring-security-web</artifactId>
+		</dependency>
 		<dependency>
 			<groupId>com.h2database</groupId>
 			<artifactId>h2</artifactId>

web/documentserver-example/java-spring/src/main/java/com/onlyoffice/integration/config/SecurityConfig.java

@@ -0,0 +1,37 @@
+/**
+ *
+ * (c) Copyright Ascensio System SIA 2023
+ *
+ * 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.
+ *
+ */
+
+package com.onlyoffice.integration.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.web.SecurityFilterChain;
+
+@Configuration
+public class SecurityConfig {
+
+    @Bean
+    SecurityFilterChain filterChain(final HttpSecurity http) throws Exception {
+        return http
+                .requiresChannel(channel -> channel.anyRequest().requiresSecure())
+                .authorizeRequests(authorize -> authorize.anyRequest().permitAll())
+                .build();
+    }
+
+}

web/documentserver-example/java-spring/src/main/resources/application.properties

@@ -1,7 +1,11 @@
 server.version=1.5.0
 
 server.address=
-server.port=4000
+server.port=8443
+server.ssl.key-store=classpath:springboot.p12
+server.ssl.key-store-password=111111
+server.ssl.key-alias=springboot
+server.ssl.key-password=111111
 
 filesize-max=5242880
 

web/documentserver-example/php/3rd-Party.license

@@ -21,5 +21,9 @@ License:        MIT
 License File:   jQuery.UI.license
 
 JWT           - JSON Web Token implementation (https://github.com/firebase/php-jwt/blob/master/LICENSE)
-License:        BSD
+License:        BSD-3-Clause
 License File:   jwt.license
+
+PHP_CodeSniffer - PHP_CodeSniffer is a set of two PHP scripts; the main phpcs script that tokenizes PHP, JavaScript and CSS files to detect violations of a defined coding standard, and a second phpcbf script to automatically correct coding standard violations. PHP_CodeSniffer is an essential development tool that ensures your code remains clean and consistent. (https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt)
+License:        BSD-3-Clause
+License File:   PHP_CodeSniffer.license

web/documentserver-example/php/ajax.php

@@ -1,6 +1,5 @@
 <?php
 /**
- *
  * (c) Copyright Ascensio System SIA 2023
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -14,52 +13,66 @@
  * 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.
- *
  */
 
-require( dirname(__FILE__) . '/config.php' );
-    
-// check if the request is an AJAX request
-function is_ajax() {
-    return isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest';
+require dirname(__FILE__) . '/config.php';
+
+/**
+ * Check if the request is an AJAX request
+ *
+ * @return bool
+ */
+function isAjax()
+{
+    return isset($_SERVER['HTTP_X_REQUESTED_WITH'])
+        && mb_strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest';
 }
 
-// get the http origin
-function get_http_origin() {
-	$origin = '';
-	if ( ! empty ( $_SERVER[ 'HTTP_ORIGIN' ] ) )
-		$origin = $_SERVER[ 'HTTP_ORIGIN' ];
-	return $origin;
+/**
+ * Get the http origin
+ *
+ * @return string
+ */
+function getHttpOrigin()
+{
+    $origin = '';
+    if (!empty($_SERVER['HTTP_ORIGIN'])) {
+        $origin = $_SERVER['HTTP_ORIGIN'];
+    }
+    return $origin;
 }
 
-// set headers that prevent caching in all the browsers
-function nocache_headers() {
-    $headers = array(
-		'Expires' => 'Wed, 11 Jan 1984 05:00:00 GMT',
-		'Cache-Control' => 'no-cache, must-revalidate, max-age=0',
-		'Pragma' => 'no-cache',
-	);
-	$headers['Last-Modified'] = false;
+/**
+ * Set headers that prevent caching in all the browsers
+ *
+ * @return void
+ */
+function nocacheHeaders()
+{
+    $headers = [
+        'Expires' => 'Wed, 11 Jan 1984 05:00:00 GMT',
+        'Cache-Control' => 'no-cache, must-revalidate, max-age=0',
+        'Pragma' => 'no-cache',
+    ];
+    $headers['Last-Modified'] = false;
 
+    unset($headers['Last-Modified']);
 
-	unset( $headers['Last-Modified'] );
+    // In PHP 5.3+, make sure we are not sending a Last-Modified header.
+    if (function_exists('header_remove')) {
+        @header_remove('Last-Modified');
+    } else {
+        // In PHP 5.2, send an empty Last-Modified header, but only as a
+        // last resort to override a header already sent. #WP23021
+        foreach (headers_list() as $header) {
+            if (0 === mb_stripos($header, 'Last-Modified')) {
+                $headers['Last-Modified'] = '';
+                break;
+            }
+        }
+    }
 
-	// In PHP 5.3+, make sure we are not sending a Last-Modified header.
-	if ( function_exists( 'header_remove' ) ) {
-		@header_remove( 'Last-Modified' );
-	} else {
-		// In PHP 5.2, send an empty Last-Modified header, but only as a
-		// last resort to override a header already sent. #WP23021
-		foreach ( headers_list() as $header ) {
-			if ( 0 === stripos( $header, 'Last-Modified' ) ) {
-				$headers['Last-Modified'] = '';
-				break;
-			}
-		}
-	}
-
-	foreach( $headers as $name => $field_value )
-		@header("{$name}: {$field_value}");
+    foreach ($headers as $name => $field_value) {
+        @header("{$name}: {$field_value}");
+    }
 }
-
-?>

web/documentserver-example/php/common.php

@@ -1,6 +1,5 @@
 <?php
 /**
- *
  * (c) Copyright Ascensio System SIA 2023
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -14,44 +13,62 @@
  * 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.
- *
  */
 
-require_once( dirname(__FILE__) . '/config.php' );
-require_once( dirname(__FILE__) . '/functions.php' );
+require_once dirname(__FILE__) . '/config.php';
+require_once dirname(__FILE__) . '/functions.php';
 
-// put log files into the log folder
-function sendlog($msg, $logFileName) {
+/**
+ * Put log files into the log folder
+ *
+ * @param string  $msg
+ * @param integer $logFileName
+ *
+ * @return void
+ */
+function sendlog($msg, $logFileName)
+{
     $logsFolder = "logs/";
-    if (!file_exists($logsFolder)) {  // if log folder does't exist, make it
+    if (!file_exists($logsFolder)) {  // if log folder doesn't exist, make it
         mkdir($logsFolder);
     }
     file_put_contents($logsFolder . $logFileName, $msg . PHP_EOL, FILE_APPEND);
 }
 
-// create new uuid
-function guid() {
+/**
+ * Create new uuid
+ *
+ * @return string
+ */
+function guid()
+{
     if (function_exists('com_create_guid')) {
         return com_create_guid();
-    } else {
-        mt_srand((double)microtime()*10000);  // optional for php 4.2.0 and up
-        $charid = strtoupper(md5(uniqid(rand(), true)));
-        $hyphen = chr(45);  // "-"
-        $uuid = chr(123)  // "{"
-                .substr($charid, 0, 8).$hyphen
-                .substr($charid, 8, 4).$hyphen
-                .substr($charid,12, 4).$hyphen
-                .substr($charid,16, 4).$hyphen
-                .substr($charid,20,12)
-                .chr(125);  // "}"
-        return $uuid;
     }
+    mt_srand((float) microtime() * 10000);  // optional for php 4.2.0 and up
+    $charid = mb_strtoupper(md5(uniqid(rand(), true)));
+    $hyphen = chr(45);  // "-"
+    $uuid = chr(123)  // "{"
+            .mb_substr($charid, 0, 8).$hyphen
+            .mb_substr($charid, 8, 4).$hyphen
+            .mb_substr($charid, 12, 4).$hyphen
+            .mb_substr($charid, 16, 4).$hyphen
+            .mb_substr($charid, 20, 12)
+            .chr(125);  // "}"
+    return $uuid;
 }
 
-if(!function_exists('mime_content_type')) {
-    function mime_content_type($filename) {
-
-        $mime_types = array(
+if (!function_exists('mime_content_type')) {
+    /**
+     * Create new uuid
+     *
+     * @param string  $filename
+     *
+     * @return string
+     */
+    function mime_content_type($filename)
+    {
+        $mime_types = [
 
             'txt' => 'text/plain',
             'htm' => 'text/html',
@@ -105,35 +122,36 @@ if(!function_exists('mime_content_type')) {
             // open office
             'odt' => 'application/vnd.oasis.opendocument.text',
             'ods' => 'application/vnd.oasis.opendocument.spreadsheet',
-        );
+        ];
 
         // check if the file extension is in the mime type array
-        $ext = strtolower(array_pop(explode('.',$filename)));
+        $ext = mb_strtolower(array_pop(explode('.', $filename)));
         if (array_key_exists($ext, $mime_types)) {
             return $mime_types[$ext];  // get the mime type of this extension
-        }
-        // or get the mime type from the file information
-        elseif (function_exists('finfo_open')) {
+        } elseif (function_exists('finfo_open')) { // or get the mime type from the file information
             $finfo = finfo_open(FILEINFO_MIME);
             $mimetype = finfo_file($finfo, $filename);
             finfo_close($finfo);
             return $mimetype;
         }
-        else {
-            return 'application/octet-stream';
-        }
+
+        return 'application/octet-stream';
     }
 }
 
-// get ip address
-function getClientIp() {
-    $ipaddress =
-        getenv('HTTP_CLIENT_IP')?:
-        getenv('HTTP_X_FORWARDED_FOR')?:
-        getenv('HTTP_X_FORWARDED')?:
-        getenv('HTTP_FORWARDED_FOR')?:
-        getenv('HTTP_FORWARDED')?:
-        getenv('REMOTE_ADDR')?:
+/**
+ * Get ip address
+ *
+ * @return string
+ */
+function getClientIp()
+{
+    $ipaddress = getenv('HTTP_CLIENT_IP') ?:
+        getenv('HTTP_X_FORWARDED_FOR') ?:
+        getenv('HTTP_X_FORWARDED') ?:
+        getenv('HTTP_FORWARDED_FOR') ?:
+        getenv('HTTP_FORWARDED') ?:
+        getenv('REMOTE_ADDR') ?:
         'Storage';
 
     $ipaddress = preg_replace("/[^0-9a-zA-Z.=]/", "_", $ipaddress);
@@ -141,65 +159,132 @@ function getClientIp() {
     return $ipaddress;
 }
 
-// get server url
-function serverPath($forDocumentServer = NULL) {
+/**
+ * Get server url
+ *
+ * @param string  $forDocumentServer
+ *
+ * @return string
+ */
+function serverPath($forDocumentServer = null)
+{
     return $forDocumentServer && isset($GLOBALS['EXAMPLE_URL']) && $GLOBALS['EXAMPLE_URL'] != ""
         ? $GLOBALS['EXAMPLE_URL']
         : (getScheme() . '://' . $_SERVER['HTTP_HOST']);
 }
 
-// get current user host address
-function getCurUserHostAddress($userAddress = NULL) {
+/**
+ * Get current user host address
+ *
+ * @param string  $userAddress
+ *
+ * @return string
+ */
+function getCurUserHostAddress($userAddress = null)
+{
     if ($GLOBALS['ALONE']) {
         if (empty($GLOBALS['STORAGE_PATH'])) {
             return "Storage";
-        } else {
-            return "";
         }
+        return "";
+    }
+    if (is_null($userAddress)) {
+        $userAddress = getClientIp();
     }
-    if (is_null($userAddress)) {$userAddress = getClientIp();}
     return preg_replace("[^0-9a-zA-Z.=]", '_', $userAddress);
 }
 
-// get an internal file extension
-function getInternalExtension($filename) {
-    $ext = strtolower('.' . pathinfo($filename, PATHINFO_EXTENSION));
+/**
+ * Get an internal file extension
+ *
+ * @param string  $filename
+ *
+ * @return string
+ */
+function getInternalExtension($filename)
+{
+    $ext = mb_strtolower('.' . pathinfo($filename, PATHINFO_EXTENSION));
 
-    if (in_array($ext, $GLOBALS['ExtsDocument'])) return ".docx";  // .docx for text document extensions
-    if (in_array($ext, $GLOBALS['ExtsSpreadsheet'])) return ".xlsx";  // .xlsx for spreadsheet extensions
-    if (in_array($ext, $GLOBALS['ExtsPresentation'])) return ".pptx";  // .pptx for presentation extensions
+    if (in_array($ext, $GLOBALS['ExtsDocument'])) {
+        return ".docx";
+    }  // .docx for text document extensions
+    if (in_array($ext, $GLOBALS['ExtsSpreadsheet'])) {
+        return ".xlsx";
+    }  // .xlsx for spreadsheet extensions
+    if (in_array($ext, $GLOBALS['ExtsPresentation'])) {
+        return ".pptx";
+    }  // .pptx for presentation extensions
     return "";
 }
 
-// get image url for templates
-function getTemplateImageUrl($filename) {
-    $ext = strtolower('.' . pathinfo($filename, PATHINFO_EXTENSION));
+/**
+ * Get image url for templates
+ *
+ * @param string  $filename
+ *
+ * @return string
+ */
+function getTemplateImageUrl($filename)
+{
+    $ext = mb_strtolower('.' . pathinfo($filename, PATHINFO_EXTENSION));
     $path = serverPath(true) . "/css/images/";
 
-    if (in_array($ext, $GLOBALS['ExtsDocument'])) return $path . "file_docx.svg";  // for text document extensions
-    if (in_array($ext, $GLOBALS['ExtsSpreadsheet'])) return $path . "file_xlsx.svg";  // for spreadsheet extensions
-    if (in_array($ext, $GLOBALS['ExtsPresentation'])) return $path . "file_pptx.svg";  // for presentation extensions
+    if (in_array($ext, $GLOBALS['ExtsDocument'])) {
+        return $path . "file_docx.svg";
+    }  // for text document extensions
+    if (in_array($ext, $GLOBALS['ExtsSpreadsheet'])) {
+        return $path . "file_xlsx.svg";
+    }  // for spreadsheet extensions
+    if (in_array($ext, $GLOBALS['ExtsPresentation'])) {
+        return $path . "file_pptx.svg";
+    }  // for presentation extensions
     return $path . "file_docx.svg";
 }
 
-// get the document type
-function getDocumentType($filename) {
-    $ext = strtolower('.' . pathinfo($filename, PATHINFO_EXTENSION));
+/**
+ * Get the document type
+ *
+ * @param string  $filename
+ *
+ * @return string
+ */
+function getDocumentType($filename)
+{
+    $ext = mb_strtolower('.' . pathinfo($filename, PATHINFO_EXTENSION));
 
-    if (in_array($ext, $GLOBALS['ExtsDocument'])) return "word";  // word for text document extensions
-    if (in_array($ext, $GLOBALS['ExtsSpreadsheet'])) return "cell";  // cell for spreadsheet extensions
-    if (in_array($ext, $GLOBALS['ExtsPresentation'])) return "slide";  // slide for presentation extensions
+    if (in_array($ext, $GLOBALS['ExtsDocument'])) {
+        return "word";
+    }  // word for text document extensions
+    if (in_array($ext, $GLOBALS['ExtsSpreadsheet'])) {
+        return "cell";
+    }  // cell for spreadsheet extensions
+    if (in_array($ext, $GLOBALS['ExtsPresentation'])) {
+        return "slide";
+    }  // slide for presentation extensions
     return "word";
 }
 
-// get the protocol
-function getScheme() {
+/**
+ * Get the protocol
+ *
+ * @return string
+ */
+function getScheme()
+{
     return (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? 'https' : 'http';
 }
 
-// get the storage path of the given file
-function getStoragePath($fileName, $userAddress = NULL) {
-    $storagePath = trim(str_replace(array('/','\\'), DIRECTORY_SEPARATOR, $GLOBALS['STORAGE_PATH']), DIRECTORY_SEPARATOR);
+/**
+ * Get the storage path of the given file
+ *
+ * @param string  $fileName
+ * @param string  $userAddress
+ *
+ * @return string
+ */
+function getStoragePath($fileName, $userAddress = null)
+{
+    $storagePath = trim(str_replace(['/', '\\'], DIRECTORY_SEPARATOR, $GLOBALS['STORAGE_PATH']), DIRECTORY_SEPARATOR);
     if (!empty($storagePath) && !file_exists($storagePath) && !is_dir($storagePath)) {
         mkdir($storagePath);
     }
@@ -210,9 +295,8 @@ function getStoragePath($fileName, $userAddress = NULL) {
         $directory = __DIR__ . DIRECTORY_SEPARATOR . $storagePath;
     }
 
-    if ($storagePath != "")
-    {
-        $directory =  $directory  . DIRECTORY_SEPARATOR;
+    if ($storagePath != "") {
+        $directory = $directory  . DIRECTORY_SEPARATOR;
 
         // if the file directory doesn't exist, make it
         if (!file_exists($directory) && !is_dir($directory)) {
@@ -226,39 +310,62 @@ function getStoragePath($fileName, $userAddress = NULL) {
 
     if (!file_exists($directory) && !is_dir($directory)) {
         mkdir($directory);
-    } 
+    }
     sendlog("getStoragePath result: " . $directory . basename($fileName), "common.log");
     return realpath($storagePath) === $storagePath ? $directory . $fileName : $directory . basename($fileName);
 }
 
-// get the path to the forcesaved file version
-function getForcesavePath($fileName, $userAddress, $create) {
-    $storagePath = trim(str_replace(array('/','\\'), DIRECTORY_SEPARATOR, $GLOBALS['STORAGE_PATH']), DIRECTORY_SEPARATOR);
+/**
+ * Get the path to the forcesaved file version
+ *
+ * @param string  $fileName
+ * @param string  $userAddress
+ * @param bool    $create
+ *
+ * @return string
+ */
+function getForcesavePath($fileName, $userAddress, $create)
+{
+    $storagePath = trim(str_replace(['/', '\\'], DIRECTORY_SEPARATOR, $GLOBALS['STORAGE_PATH']), DIRECTORY_SEPARATOR);
 
     // create the directory to this file version
     if (realpath($storagePath) === $storagePath) {
         $directory = $storagePath . DIRECTORY_SEPARATOR;
     } else {
-        $directory = __DIR__ . DIRECTORY_SEPARATOR . $storagePath . getCurUserHostAddress($userAddress) . DIRECTORY_SEPARATOR;
+        $directory = __DIR__ . DIRECTORY_SEPARATOR . $storagePath . getCurUserHostAddress($userAddress) .
+            DIRECTORY_SEPARATOR;
     }
 
-    if (!is_dir($directory)) return "";
+    if (!is_dir($directory)) {
+        return "";
+    }
 
     // create the directory to the history of this file version
     $directory = $directory . $fileName . "-hist" . DIRECTORY_SEPARATOR;
-    if (!$create && !is_dir($directory))  return "";
+    if (!$create && !is_dir($directory)) {
+        return "";
+    }
 
     if (!file_exists($directory) && !is_dir($directory)) {
         mkdir($directory);
     }
     $directory = $directory . $fileName;
-    if (!$create && !file_exists($directory)) return "";
+    if (!$create && !file_exists($directory)) {
+        return "";
+    }
 
     return $directory;
 }
 
-// get the path to the file history
-function getHistoryDir($storagePath) {
+/**
+ * Get the path to the file history
+ *
+ * @param string  $storagePath
+ *
+ * @return string
+ */
+function getHistoryDir($storagePath)
+{
     $directory = $storagePath . "-hist";
     // if the history directory doesn't exist, make it
     if (!file_exists($directory) && !is_dir($directory)) {
@@ -267,19 +374,36 @@ function getHistoryDir($storagePath) {
     return $directory;
 }
 
-// get the path to the specified file version
-function getVersionDir($histDir, $version) {
+/**
+ * Get the path to the specified file version
+ *
+ * @param string  $histDir
+ * @param string  $version
+ *
+ * @return string
+ */
+function getVersionDir($histDir, $version)
+{
     return $histDir . DIRECTORY_SEPARATOR . $version;
 }
 
-// get a number of the last file version from the history directory
-function getFileVersion($histDir) {
-    if (!file_exists($histDir) || !is_dir($histDir)) return 1;  // check if the history directory exists
+/**
+ * Get a number of the last file version from the history directory
+ *
+ * @param string $histDir
+ *
+ * @return int
+ */
+function getFileVersion($histDir)
+{
+    if (!file_exists($histDir) || !is_dir($histDir)) {
+        return 1;
+    }  // check if the history directory exists
 
     $cdir = scandir($histDir);
     $ver = 1;
-    foreach($cdir as $key => $fileName) {
-        if (!in_array($fileName,array(".", ".."))) {
+    foreach ($cdir as $key => $fileName) {
+        if (!in_array($fileName, [".", ".."])) {
             if (is_dir($histDir . DIRECTORY_SEPARATOR . $fileName)) {
                 $ver++;
             }
@@ -288,9 +412,14 @@ function getFileVersion($histDir) {
     return $ver;
 }
 
-// get all the stored files from the folder
-function getStoredFiles() {
-    $storagePath = trim(str_replace(array('/','\\'), DIRECTORY_SEPARATOR, $GLOBALS['STORAGE_PATH']), DIRECTORY_SEPARATOR);
+/**
+ * Get all the stored files from the folder
+ *
+ * @return array
+ */
+function getStoredFiles()
+{
+    $storagePath = trim(str_replace(['/', '\\'], DIRECTORY_SEPARATOR, $GLOBALS['STORAGE_PATH']), DIRECTORY_SEPARATOR);
     if (!empty($storagePath) && !file_exists($storagePath) && !is_dir($storagePath)) {
         mkdir($storagePath);
     }
@@ -302,10 +431,9 @@ function getStoredFiles() {
     }
 
     // get the storage path and check if it exists
-    $result = array();
-    if ($storagePath != "")
-    {
-        $directory =  $directory . DIRECTORY_SEPARATOR;
+    $result = [];
+    if ($storagePath != "") {
+        $directory = $directory . DIRECTORY_SEPARATOR;
 
         if (!file_exists($directory) && !is_dir($directory)) {
             return $result;
@@ -321,18 +449,18 @@ function getStoredFiles() {
     }
 
     $cdir = scandir($directory);  // get all the files and folders from the directory
-    $result = array();
-    foreach($cdir as $key => $fileName) {  // run through all the file and folder names
-        if (!in_array($fileName,array(".", ".."))) {
+    $result = [];
+    foreach ($cdir as $key => $fileName) {  // run through all the file and folder names
+        if (!in_array($fileName, [".", ".."])) {
             if (!is_dir($directory . DIRECTORY_SEPARATOR . $fileName)) {  // if an element isn't a directory
-                $ext = strtolower('.' . pathinfo($fileName, PATHINFO_EXTENSION));
+                $ext = mb_strtolower('.' . pathinfo($fileName, PATHINFO_EXTENSION));
                 $dat = filemtime($directory . DIRECTORY_SEPARATOR . $fileName);  // get the time of element modification
-                $result[$dat] = (object) array(  // and write the file to the result
-                        "name" => $fileName,
-                        "documentType" => getDocumentType($fileName),
-                        "canEdit" => in_array($ext, $GLOBALS['DOC_SERV_EDITED']),
-                        "isFillFormDoc" => in_array($ext, $GLOBALS['DOC_SERV_FILLFORMS'])
-                    );
+                $result[$dat] = (object) [  // and write the file to the result
+                    "name" => $fileName,
+                    "documentType" => getDocumentType($fileName),
+                    "canEdit" => in_array($ext, $GLOBALS['DOC_SERV_EDITED']),
+                    "isFillFormDoc" => in_array($ext, $GLOBALS['DOC_SERV_FILLFORMS']),
+                ];
             }
         }
     }
@@ -340,12 +468,18 @@ function getStoredFiles() {
     return array_reverse($result);
 }
 
-// get the virtual path
-function getVirtualPath($forDocumentServer) {
-    $storagePath = trim(str_replace(array('/','\\'), '/', $GLOBALS['STORAGE_PATH']), '/');
+/**
+ * Get the virtual path
+ *
+ * @param string $forDocumentServer
+ *
+ * @return string
+ */
+function getVirtualPath($forDocumentServer)
+{
+    $storagePath = trim(str_replace(['/', '\\'], '/', $GLOBALS['STORAGE_PATH']), '/');
     $storagePath = $storagePath != "" ? $storagePath . '/' : "";
 
-
     if (realpath($storagePath) === $storagePath) {
         $virtPath = serverPath($forDocumentServer) . '/' . $storagePath . '/';
     } else {
@@ -355,8 +489,18 @@ function getVirtualPath($forDocumentServer) {
     return $virtPath;
 }
 
-// get a file with meta information
-function createMeta($fileName, $uid, $uname, $userAddress = NULL) {
+/**
+ * Get a file with meta information
+ *
+ * @param string $fileName
+ * @param string $uid
+ * @param string $uname
+ * @param string $userAddress
+ *
+ * @return void
+ */
+function createMeta($fileName, $uid, $uname, $userAddress = null)
+{
     $histDir = getHistoryDir(getStoragePath($fileName, $userAddress));  // get the history directory
 
     // turn the file information into the json format
@@ -370,72 +514,113 @@ function createMeta($fileName, $uid, $uname, $userAddress = NULL) {
     file_put_contents($histDir . DIRECTORY_SEPARATOR . "createdInfo.json", json_encode($json, JSON_PRETTY_PRINT));
 }
 
-// get the file url
-function FileUri($file_name, $forDocumentServer = NULL) {
+/**
+ * Get the file url
+ *
+ * @param string $file_name
+ * @param string $forDocumentServer
+ *
+ * @return string
+ */
+function fileUri($file_name, $forDocumentServer = null)
+{
     $uri = getVirtualPath($forDocumentServer) . rawurlencode($file_name);  // add encoded file name to the virtual path
     return $uri;
 }
 
-// get file information
-function getFileInfo($fileId){
+/**
+ * Get file information
+ *
+ * @param string $fileId
+ *
+ * @return array|string
+ */
+function getFileInfo($fileId)
+{
     $storedFiles = getStoredFiles();
-    $result = array();
-    $resultID = array();
+    $result = [];
+    $resultID = [];
 
     // run through all the stored files
-    foreach ($storedFiles as $key => $value){
-        $result[$key] = (object) array(  // write all the parameters to the map
+    foreach ($storedFiles as $key => $value) {
+        $result[$key] = (object) [  // write all the parameters to the map
             "version" => getFileVersion(getHistoryDir(getStoragePath($value->name))),
             "id" => getDocEditorKey($value->name),
-            "contentLength" => number_format( filesize(getStoragePath($value->name)) / 1024, 2 )." KB",
+            "contentLength" => number_format(filesize(getStoragePath($value->name)) / 1024, 2)." KB",
             "pureContentLength" => filesize(getStoragePath($value->name)),
             "title" => $value->name,
-            "updated" => date( DATE_ATOM, filemtime(getStoragePath($value->name))),
-        );
+            "updated" => date(DATE_ATOM, filemtime(getStoragePath($value->name))),
+        ];
         // get file information by its id
-        if ($fileId != null){
-            if ($fileId == getDocEditorKey($value->name)){
+        if ($fileId != null) {
+            if ($fileId == getDocEditorKey($value->name)) {
                 $resultID[count($resultID)] = $result[$key];
             }
         }
     }
 
-    if ($fileId != null){
-        if (count($resultID) != 0) return $resultID;
-        else return "File not found";
-    }
-    else {
-        return $result;
+    if ($fileId != null) {
+        if (count($resultID) != 0) {
+            return $resultID;
+        }
+        return "File not found";
     }
+
+    return $result;
 }
 
-// get all the supported file extensions
-function getFileExts() {
-    return array_merge($GLOBALS['DOC_SERV_VIEWD'], $GLOBALS['DOC_SERV_EDITED'], $GLOBALS['DOC_SERV_CONVERT'], $GLOBALS['DOC_SERV_FILLFORMS']);
+/**
+ * Get all the supported file extensions
+ *
+ * @return array
+ */
+function getFileExts()
+{
+    return array_merge(
+        $GLOBALS['DOC_SERV_VIEWD'],
+        $GLOBALS['DOC_SERV_EDITED'],
+        $GLOBALS['DOC_SERV_CONVERT'],
+        $GLOBALS['DOC_SERV_FILLFORMS']
+    );
 }
 
-// get the correct file name if such a name already exists
-function GetCorrectName($fileName, $userAddress = NULL) {
+/**
+ * Get the correct file name if such a name already exists
+ *
+ * @param string $fileName
+ * @param string $userAddress
+ *
+ * @return string
+ */
+function GetCorrectName($fileName, $userAddress = null)
+{
     $path_parts = pathinfo($fileName);
 
-    $ext = strtolower($path_parts['extension']);
+    $ext = mb_strtolower($path_parts['extension']);
     $name = $path_parts['basename'];
-    $baseNameWithoutExt = substr($name, 0, strlen($name) - strlen($ext) - 1);  // get file name from the basename without extension
+    // get file name from the basename without extension
+    $baseNameWithoutExt = mb_substr($name, 0, mb_strlen($name) - mb_strlen($ext) - 1);
     $name = $baseNameWithoutExt . "." . $ext;
 
-    for ($i = 1; file_exists(getStoragePath($name, $userAddress)); $i++)  // if a file with such a name already exists in this directory
-    {
+    // if a file with such a name already exists in this directory
+    for ($i = 1; file_exists(getStoragePath($name, $userAddress)); $i++) {
         $name = $baseNameWithoutExt . " (" . $i . ")." . $ext;  // add an index after its base name
     }
     return $name;
 }
 
-// get document key
-function getDocEditorKey($fileName) {
-    $key = getCurUserHostAddress() . FileUri($fileName);  // get document key by adding local file url to the current user host address
+/**
+ * Get document key
+ *
+ * @param string $fileName
+ *
+ * @return string
+ */
+function getDocEditorKey($fileName)
+{
+    // get document key by adding local file url to the current user host address
+    $key = getCurUserHostAddress() . fileUri($fileName);
     $stat = filemtime(getStoragePath($fileName));  // get creation time
     $key = $key . $stat;  // and add it to the document key
-    return GenerateRevisionId($key);  // generate the document key value
+    return generateRevisionId($key);  // generate the document key value
 }
-
-?>

web/documentserver-example/php/composer.json

@@ -0,0 +1,17 @@
+{
+    "require-dev": {
+        "squizlabs/php_codesniffer": "*"
+    },
+    "scripts": {
+        "code-sniffer": [
+            "./vendor/bin/phpcs --config-set default_standard ruleset.xml",
+            "./vendor/bin/phpcs --config-set colors 1"
+        ],
+        "post-install-cmd": [
+            "@code-sniffer"
+        ],
+        "post-update-cmd": [
+            "@code-sniffer"
+        ]
+    }
+}

web/documentserver-example/php/composer.lock

@@ -0,0 +1,75 @@
+{
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
+        "This file is @generated automatically"
+    ],
+    "content-hash": "0ae1576e556ebadd2933ecd2483a4b26",
+    "packages": [],
+    "packages-dev": [
+        {
+            "name": "squizlabs/php_codesniffer",
+            "version": "3.7.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/squizlabs/PHP_CodeSniffer.git",
+                "reference": "1359e176e9307e906dc3d890bcc9603ff6d90619"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/1359e176e9307e906dc3d890bcc9603ff6d90619",
+                "reference": "1359e176e9307e906dc3d890bcc9603ff6d90619",
+                "shasum": ""
+            },
+            "require": {
+                "ext-simplexml": "*",
+                "ext-tokenizer": "*",
+                "ext-xmlwriter": "*",
+                "php": ">=5.4.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^4.0 || ^5.0 || ^6.0 || ^7.0"
+            },
+            "bin": [
+                "bin/phpcs",
+                "bin/phpcbf"
+            ],
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.x-dev"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Greg Sherwood",
+                    "role": "lead"
+                }
+            ],
+            "description": "PHP_CodeSniffer tokenizes PHP, JavaScript and CSS files and detects violations of a defined set of coding standards.",
+            "homepage": "https://github.com/squizlabs/PHP_CodeSniffer",
+            "keywords": [
+                "phpcs",
+                "standards"
+            ],
+            "support": {
+                "issues": "https://github.com/squizlabs/PHP_CodeSniffer/issues",
+                "source": "https://github.com/squizlabs/PHP_CodeSniffer",
+                "wiki": "https://github.com/squizlabs/PHP_CodeSniffer/wiki"
+            },
+            "time": "2022-06-18T07:21:10+00:00"
+        }
+    ],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": [],
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": [],
+    "platform-dev": [],
+    "plugin-api-version": "2.2.0"
+}

web/documentserver-example/php/config.php

@@ -1,19 +1,36 @@
 <?php
+/**
+ * (c) Copyright Ascensio System SIA 2023
+ *
+ * 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.
+ */
 
 $GLOBALS['version'] = "1.5.0";
 
 $GLOBALS['FILE_SIZE_MAX'] = 5242880;
 $GLOBALS['STORAGE_PATH'] = "";
-$GLOBALS['ALONE'] = FALSE;
+$GLOBALS['ALONE'] = false;
 
-$GLOBALS['DOC_SERV_FILLFORMS'] = array(".oform", ".docx");
-$GLOBALS['DOC_SERV_VIEWD'] = array(".pdf", ".djvu", ".xps", ".oxps");
-$GLOBALS['DOC_SERV_EDITED'] = array(".docx", ".xlsx", ".csv", ".pptx", ".txt", ".docxf");
-$GLOBALS['DOC_SERV_CONVERT'] = array(".docm", ".doc", ".dotx", ".dotm", ".dot", ".odt", ".fodt", ".ott", ".xlsm", ".xlsb", ".xls", ".xltx", ".xltm", ".xlt", ".ods", ".fods", ".ots", ".pptm", ".ppt", ".ppsx", ".ppsm", ".pps", ".potx", ".potm", ".pot", ".odp", ".fodp", ".otp", ".rtf", ".mht", ".html", ".htm", ".xml", ".epub", ".fb2");
+$GLOBALS['DOC_SERV_FILLFORMS'] = [".oform", ".docx"];
+$GLOBALS['DOC_SERV_VIEWD'] = [".pdf", ".djvu", ".xps", ".oxps"];
+$GLOBALS['DOC_SERV_EDITED'] = [".docx", ".xlsx", ".csv", ".pptx", ".txt", ".docxf"];
+$GLOBALS['DOC_SERV_CONVERT'] = [".docm", ".doc", ".dotx", ".dotm", ".dot",
+    ".odt", ".fodt", ".ott", ".xlsm", ".xlsb", ".xls", ".xltx", ".xltm",
+    ".xlt", ".ods", ".fods", ".ots", ".pptm", ".ppt", ".ppsx", ".ppsm", ".pps",
+    ".potx", ".potm", ".pot", ".odp", ".fodp", ".otp", ".rtf", ".mht", ".html", ".htm", ".xml", ".epub", ".fb2"];
 
 $GLOBALS['DOC_SERV_TIMEOUT'] = "120000";
 
-
 $GLOBALS['DOC_SERV_SITE_URL'] = "http://documentserver/";
 
 $GLOBALS['DOC_SERV_CONVERTER_URL'] = "ConvertService.ashx";
@@ -24,29 +41,31 @@ $GLOBALS['DOC_SERV_COMMAND_URL'] = "coauthoring/CommandService.ashx";
 $GLOBALS['DOC_SERV_JWT_SECRET'] = "";
 $GLOBALS['DOC_SERV_JWT_HEADER'] = "Authorization";
 
-$GLOBALS['DOC_SERV_VERIFY_PEER_OFF'] = TRUE;
+$GLOBALS['DOC_SERV_VERIFY_PEER_OFF'] = true;
 
 $GLOBALS['EXAMPLE_URL'] = "";
 
-$GLOBALS['MOBILE_REGEX'] = "android|avantgo|playbook|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od|ad)|iris|kindle|lge |maemo|midp|mmp|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\\/|plucker|pocket|psp|symbian|treo|up\\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino";
+$GLOBALS['MOBILE_REGEX'] = "android|avantgo|playbook|blackberry|blazer|
+    compal|elaine|fennec|hiptop|iemobile|ip(hone|od|ad)|iris|kindle|lge |
+    maemo|midp|mmp|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\\/|plucker|
+    pocket|psp|symbian|treo|up\\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino";
 
+$GLOBALS['ExtsSpreadsheet'] = [".xls", ".xlsx", ".xlsm", ".xlsb",
+    ".xlt", ".xltx", ".xltm",
+    ".ods", ".fods", ".ots", ".csv"];
 
-$GLOBALS['ExtsSpreadsheet'] = array(".xls", ".xlsx", ".xlsm", ".xlsb",
-                                    ".xlt", ".xltx", ".xltm",
-                                    ".ods", ".fods", ".ots", ".csv");
+$GLOBALS['ExtsPresentation'] = [".pps", ".ppsx", ".ppsm",
+    ".ppt", ".pptx", ".pptm",
+    ".pot", ".potx", ".potm",
+    ".odp", ".fodp", ".otp"];
 
-$GLOBALS['ExtsPresentation'] = array(".pps", ".ppsx", ".ppsm",
-                                     ".ppt", ".pptx", ".pptm",
-                                     ".pot", ".potx", ".potm",
-                                     ".odp", ".fodp", ".otp");
+$GLOBALS['ExtsDocument'] = [".doc", ".docx", ".docm",
+    ".dot", ".dotx", ".dotm",
+    ".odt", ".fodt", ".ott", ".rtf", ".txt",
+    ".html", ".htm", ".mht", ".xml",
+    ".pdf", ".djvu", ".fb2", ".epub", ".xps", ".oxps", ".oform"];
 
-$GLOBALS['ExtsDocument'] = array(".doc", ".docx", ".docm",
-                                 ".dot", ".dotx", ".dotm",
-                                 ".odt", ".fodt", ".ott", ".rtf", ".txt",
-                                 ".html", ".htm", ".mht", ".xml",
-                                 ".pdf", ".djvu", ".fb2", ".epub", ".xps", ".oxps", ".oform");
-
-$GLOBALS['LANGUAGES'] = array(
+$GLOBALS['LANGUAGES'] = [
     'en' => 'English',
     'hy' => 'Armenian',
     'az' => 'Azerbaijani',
@@ -85,6 +104,5 @@ $GLOBALS['LANGUAGES'] = array(
     'tr' => 'Turkish',
     'uk' => 'Ukrainian',
     'vi' => 'Vietnamese',
-    'aa-AA' => 'Test Language'
-);
-?>
+    'aa-AA' => 'Test Language',
+];

web/documentserver-example/php/doceditor.php

@@ -1,359 +1,434 @@
 <?php
-    /**
-     *
-     * (c) Copyright Ascensio System SIA 2023
-     *
-     * 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.
-     *
-     */
 
-    require_once( dirname(__FILE__) . '/config.php' );
-    require_once( dirname(__FILE__) . '/common.php' );
-    require_once( dirname(__FILE__) . '/functions.php' );
-    require_once( dirname(__FILE__) . '/jwtmanager.php' );
-    require_once( dirname(__FILE__) . '/users.php' );
+namespace PhpExample;
 
+/**
+ * (c) Copyright Ascensio System SIA 2023
+ *
+ * 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.
+ */
 
-    $user = getUser($_GET["user"]);
-    $isEnableDirectUrl = isset($_GET["directUrl"]) ? filter_var($_GET["directUrl"], FILTER_VALIDATE_BOOLEAN) : false;
+require_once dirname(__FILE__) . '/config.php';
+require_once dirname(__FILE__) . '/common.php';
+require_once dirname(__FILE__) . '/functions.php';
+require_once dirname(__FILE__) . '/jwtmanager.php';
+require_once dirname(__FILE__) . '/users.php';
 
-    // get the file url and upload it
-    $externalUrl = isset($_GET["fileUrl"]) ? $_GET["fileUrl"] : "";
-    if (!empty($externalUrl))
-    {
-        $filename = DoUpload($externalUrl);
-    }
-    // if the file url doesn't exist, get file name and file extension
-    else
-    {
-        $filename = basename($_GET["fileID"]);
-    }
-    $createExt = isset($_GET["fileExt"]) ? $_GET["fileExt"] : "";
+$user = getUser($_GET["user"]);
+$isEnableDirectUrl = isset($_GET["directUrl"]) ? filter_var($_GET["directUrl"], FILTER_VALIDATE_BOOLEAN) : false;
 
-    if (!empty($createExt))
-    {
-        // and get demo file name by the extension
-        $filename = tryGetDefaultByType($createExt, $user);
+// get the file url and upload it
+$externalUrl = $_GET["fileUrl"] ?? "";
+if (!empty($externalUrl)) {
+    $filename = doUpload($externalUrl);
+} else { // if the file url doesn't exist, get file name and file extension
+    $filename = basename($_GET["fileID"]);
+}
+$createExt = $_GET["fileExt"] ?? "";
 
-        // create the demo file url
-        $new_url = "doceditor.php?fileID=" . $filename . "&user=" . $_GET["user"];
-        header('Location: ' . $new_url, true);
-        exit;
-    }
+if (!empty($createExt)) {
+    // and get demo file name by the extension
+    $filename = tryGetDefaultByType($createExt, $user);
 
-    $fileuri = FileUri($filename, true);
-    $fileuriUser = realpath($GLOBALS['STORAGE_PATH']) === $GLOBALS['STORAGE_PATH'] ? getDownloadUrl($filename) . "&dmode=emb" : FileUri($filename);
-    $directUrl = getDownloadUrl($filename, FALSE);
-    $docKey = getDocEditorKey($filename);
-    $filetype = strtolower(pathinfo($filename, PATHINFO_EXTENSION));
+    // create the demo file url
+    $new_url = "doceditor.php?fileID=" . $filename . "&user=" . $_GET["user"];
+    header('Location: ' . $new_url, true);
+    exit;
+}
 
-    $ext = strtolower('.' . pathinfo($filename, PATHINFO_EXTENSION));
-    $editorsMode = empty($_GET["action"]) ? "edit" : $_GET["action"];  // get the editors mode
-    $canEdit = in_array($ext, $GLOBALS['DOC_SERV_EDITED']);  // check if the file can be edited
-    if ((!$canEdit && $editorsMode == "edit" || $editorsMode == "fillForms") && in_array($ext, $GLOBALS['DOC_SERV_FILLFORMS'])) {
-        $editorsMode = "fillForms";
-        $canEdit = true;
-    }
-    $submitForm = $editorsMode == "fillForms" && $user->id == "uid-1" && !1;  // check if the Submit form button is displayed or not
-    $mode = $canEdit && $editorsMode != "view" ? "edit" : "view";  // define if the editing mode is edit or view
-    $type = empty($_GET["type"]) ? "desktop" : $_GET["type"];
+$fileuri = fileUri($filename, true);
+$fileuriUser = realpath($GLOBALS['STORAGE_PATH']) === $GLOBALS['STORAGE_PATH'] ?
+    getDownloadUrl($filename) . "&dmode=emb" : fileUri($filename);
+$directUrl = getDownloadUrl($filename, false);
+$docKey = getDocEditorKey($filename);
+$filetype = mb_strtolower(pathinfo($filename, PATHINFO_EXTENSION));
 
-    $templatesImageUrl = getTemplateImageUrl($filename); // templates image url in the "From Template" section
-    $createUrl = getCreateUrl($filename, $user->id, $type);
-    $templates = array(
-        array (
-            "image" => "",
-            "title" => "Blank",
-            "url" => $createUrl
-        ),
-        array (
-            "image" => $templatesImageUrl,
-            "title" => "With sample content",
-            "url" => $createUrl . "&sample=true"
-        )
-    );
+$ext = mb_strtolower('.' . pathinfo($filename, PATHINFO_EXTENSION));
+$editorsMode = empty($_GET["action"]) ? "edit" : $_GET["action"];  // get the editors mode
+$canEdit = in_array($ext, $GLOBALS['DOC_SERV_EDITED']);  // check if the file can be edited
+if ((!$canEdit && $editorsMode == "edit"
+    || $editorsMode == "fillForms")
+    && in_array($ext, $GLOBALS['DOC_SERV_FILLFORMS'])
+) {
+    $editorsMode = "fillForms";
+    $canEdit = true;
+}
 
-    // specify the document config
-    $config = [
-        "type" => $type,
-        "documentType" => getDocumentType($filename),
-        "document" => [
-            "title" => $filename,
-            "url" => getDownloadUrl($filename),
-            "directUrl" => $isEnableDirectUrl ? $directUrl : "",
-            "fileType" => $filetype,
-            "key" => $docKey,
-            "info" => [
-                "owner" => "Me",
-                "uploaded" => date('d.m.y'),
-                "favorite" => $user->favorite
-            ],
-            "permissions" => [  // the permission for the document to be edited and downloaded or not
-                "comment" => $editorsMode != "view" && $editorsMode != "fillForms" && $editorsMode != "embedded" && $editorsMode != "blockcontent",
-                "copy" => !in_array("copy", $user->deniedPermissions),
-                "download" => !in_array("download", $user->deniedPermissions),
-                "edit" => $canEdit && ($editorsMode == "edit" || $editorsMode == "view" || $editorsMode == "filter" || $editorsMode == "blockcontent"),
-                "print" => !in_array("print", $user->deniedPermissions),
-                "fillForms" => $editorsMode != "view" && $editorsMode != "comment" && $editorsMode != "embedded" && $editorsMode != "blockcontent",
-                "modifyFilter" => $editorsMode != "filter",
-                "modifyContentControl" => $editorsMode != "blockcontent",
-                "review" => $canEdit && ($editorsMode == "edit" || $editorsMode == "review"),
-                "chat" => $user->id != "uid-0",
-                "reviewGroups" => $user->reviewGroups,
-                "commentGroups" => $user->commentGroups,
-                "userInfoGroups" => $user->userInfoGroups
-            ]
+// check if the Submit form button is displayed or not
+$submitForm = $editorsMode == "fillForms" && $user->id == "uid-1" && !1;
+$mode = $canEdit && $editorsMode != "view" ? "edit" : "view";  // define if the editing mode is edit or view
+$type = empty($_GET["type"]) ? "desktop" : $_GET["type"];
+
+$templatesImageUrl = getTemplateImageUrl($filename); // templates image url in the "From Template" section
+$createUrl = getCreateUrl($filename, $user->id, $type);
+$templates = [
+    [
+        "image" => "",
+        "title" => "Blank",
+        "url" => $createUrl,
+    ],
+    [
+        "image" => $templatesImageUrl,
+        "title" => "With sample content",
+        "url" => $createUrl . "&sample=true",
+    ],
+];
+
+// specify the document config
+$config = [
+    "type" => $type,
+    "documentType" => getDocumentType($filename),
+    "document" => [
+        "title" => $filename,
+        "url" => getDownloadUrl($filename),
+        "directUrl" => $isEnableDirectUrl ? $directUrl : "",
+        "fileType" => $filetype,
+        "key" => $docKey,
+        "info" => [
+            "owner" => "Me",
+            "uploaded" => date('d.m.y'),
+            "favorite" => $user->favorite,
         ],
-        "editorConfig" => [
-            "actionLink" => empty($_GET["actionLink"]) ? null : json_decode($_GET["actionLink"]),
-            "mode" => $mode,
-            "lang" => empty($_COOKIE["ulang"]) ? "en" : $_COOKIE["ulang"],
-            "callbackUrl" => getCallbackUrl($filename),  // absolute URL to the document storage service
-            "coEditing" => $editorsMode == "view" && $user->id == "uid-0" ? [
-                "mode" => "strict", 
-                "change" => false
-            ] : null,
-            "createUrl" => $user->id != "uid-0" ? $createUrl : null,
-            "templates" => $user->templates ? $templates : null,
-            "user" => [  // the user currently viewing or editing the document
-                "id" => $user->id != "uid-0" ? $user->id : null,
-                "name" => $user->name,
-                "group" => $user->group
+        "permissions" => [  // the permission for the document to be edited and downloaded or not
+            "comment" => $editorsMode != "view" && $editorsMode
+                != "fillForms" && $editorsMode != "embedded" && $editorsMode != "blockcontent",
+            "copy" => !in_array("copy", $user->deniedPermissions),
+            "download" => !in_array("download", $user->deniedPermissions),
+            "edit" => $canEdit && ($editorsMode == "edit" ||
+                    $editorsMode == "view" || $editorsMode == "filter" || $editorsMode == "blockcontent"),
+            "print" => !in_array("print", $user->deniedPermissions),
+            "fillForms" => $editorsMode != "view" && $editorsMode != "comment"
+                && $editorsMode != "embedded" && $editorsMode != "blockcontent",
+            "modifyFilter" => $editorsMode != "filter",
+            "modifyContentControl" => $editorsMode != "blockcontent",
+            "review" => $canEdit && ($editorsMode == "edit" || $editorsMode == "review"),
+            "chat" => $user->id != "uid-0",
+            "reviewGroups" => $user->reviewGroups,
+            "commentGroups" => $user->commentGroups,
+            "userInfoGroups" => $user->userInfoGroups,
+        ],
+    ],
+    "editorConfig" => [
+        "actionLink" => empty($_GET["actionLink"]) ? null : json_decode($_GET["actionLink"]),
+        "mode" => $mode,
+        "lang" => empty($_COOKIE["ulang"]) ? "en" : $_COOKIE["ulang"],
+        "callbackUrl" => getCallbackUrl($filename),  // absolute URL to the document storage service
+        "coEditing" => $editorsMode == "view" && $user->id == "uid-0" ? [
+            "mode" => "strict",
+            "change" => false,
+        ] : null,
+        "createUrl" => $user->id != "uid-0" ? $createUrl : null,
+        "templates" => $user->templates ? $templates : null,
+        "user" => [  // the user currently viewing or editing the document
+            "id" => $user->id != "uid-0" ? $user->id : null,
+            "name" => $user->name,
+            "group" => $user->group,
+        ],
+        "embedded" => [  // the parameters for the embedded document type
+            // the absolute URL that will allow the document to be saved onto the user personal computer
+            "saveUrl" => $directUrl,
+            // the absolute URL to the document serving as a source file for the document embedded into the web page
+            "embedUrl" => $directUrl,
+            // the absolute URL that will allow other users to share this document
+            "shareUrl" => $directUrl,
+            "toolbarDocked" => "top",  // the place for the embedded viewer toolbar (top or bottom)
+        ],
+        "customization" => [  // the parameters for the editor interface
+            "about" => true,  // the About section display
+            "comments" => true,
+            "feedback" => true,  // the Feedback & Support menu button display
+            // adds the request for the forced file saving to the callback handler when saving the document
+            "forcesave" => false,
+            "submitForm" => $submitForm,  // if the Submit form button is displayed or not
+            "goback" => [  // settings for the Open file location menu button and upper right corner button
+                // the absolute URL to the website address which will be opened
+                // when clicking the Open file location menu button
+                "url" => serverPath(),
             ],
-            "embedded" => [  // the parameters for the embedded document type
-                "saveUrl" => $directUrl,  // the absolute URL that will allow the document to be saved onto the user personal computer
-                "embedUrl" => $directUrl,  // the absolute URL to the document serving as a source file for the document embedded into the web page
-                "shareUrl" => $directUrl,  // the absolute URL that will allow other users to share this document
-                "toolbarDocked" => "top",  // the place for the embedded viewer toolbar (top or bottom)
-            ],
-            "customization" => [  // the parameters for the editor interface
-                "about" => true,  // the About section display
-                "comments" => true,
-                "feedback" => true,  // the Feedback & Support menu button display
-                "forcesave" => false,  // adds the request for the forced file saving to the callback handler when saving the document
-                "submitForm" => $submitForm,  // if the Submit form button is displayed or not
-                "goback" => [  // settings for the Open file location menu button and upper right corner button
-                    "url" => serverPath(),  // the absolute URL to the website address which will be opened when clicking the Open file location menu button
-                ]
-            ]
-        ]
-    ];
+        ],
+    ],
+];
 
-    // an image for inserting
-    $dataInsertImage = $isEnableDirectUrl ? [
-        "fileType" => "png",
-        "url" => serverPath(true) . "/css/images/logo.png",
-        "directUrl" => serverPath(false) . "/css/images/logo.png"
-    ] : [
-        "fileType" => "png",
-        "url" => serverPath(true) . "/css/images/logo.png"
-    ];
+// an image for inserting
+$dataInsertImage = $isEnableDirectUrl ? [
+    "fileType" => "png",
+    "url" => serverPath(true) . "/css/images/logo.png",
+    "directUrl" => serverPath(false) . "/css/images/logo.png",
+] : [
+    "fileType" => "png",
+    "url" => serverPath(true) . "/css/images/logo.png",
+];
 
-    // a document for comparing
-    $dataCompareFile = $isEnableDirectUrl ? [
-        "fileType" => "docx",
-        "url" => serverPath(true) . "/webeditor-ajax.php?type=assets&name=sample.docx",
-        "directUrl" => serverPath(false) . "/webeditor-ajax.php?type=assets&name=sample.docx"
-    ] : [
-        "fileType" => "docx",
-        "url" => serverPath(true) . "/webeditor-ajax.php?type=assets&name=sample.docx"
-    ];
+// a document for comparing
+$dataCompareFile = $isEnableDirectUrl ? [
+    "fileType" => "docx",
+    "url" => serverPath(true) . "/webeditor-ajax.php?type=assets&name=sample.docx",
+    "directUrl" => serverPath(false) . "/webeditor-ajax.php?type=assets&name=sample.docx",
+] : [
+    "fileType" => "docx",
+    "url" => serverPath(true) . "/webeditor-ajax.php?type=assets&name=sample.docx",
+];
 
-    // recipients data for mail merging
-    $dataMailMergeRecipients = $isEnableDirectUrl ? [
-        "fileType" =>"csv",
-        "url" => serverPath(true) . "/webeditor-ajax.php?type=csv",
-        "directUrl" => serverPath(false) . "/webeditor-ajax.php?type=csv"
-    ]  : [
-        "fileType" =>"csv",
-        "url" => serverPath(true) . "/webeditor-ajax.php?type=csv"
-    ];
-    
-    // users data for mentions
-    $usersForMentions = $user->id != "uid-0" ? getUsersForMentions($user->id) : null;
+// recipients data for mail merging
+$dataMailMergeRecipients = $isEnableDirectUrl ? [
+    "fileType" => "csv",
+    "url" => serverPath(true) . "/webeditor-ajax.php?type=csv",
+    "directUrl" => serverPath(false) . "/webeditor-ajax.php?type=csv",
+] : [
+    "fileType" => "csv",
+    "url" => serverPath(true) . "/webeditor-ajax.php?type=csv",
+];
 
-    // check if the secret key to generate token exists
-    if (isJwtEnabled()) {
-        $config["token"] = jwtEncode($config);  // encode config into the token
-        $dataInsertImage["token"] = jwtEncode($dataInsertImage);  // encode the dataInsertImage object into the token
-        $dataCompareFile["token"] = jwtEncode($dataCompareFile);  // encode the dataCompareFile object into the token
-        $dataMailMergeRecipients["token"] = jwtEncode($dataMailMergeRecipients);  // encode the dataMailMergeRecipients object into the token
+// users data for mentions
+$usersForMentions = $user->id != "uid-0" ? getUsersForMentions($user->id) : null;
+
+// check if the secret key to generate token exists
+if (isJwtEnabled()) {
+    $config["token"] = jwtEncode($config);  // encode config into the token
+    $dataInsertImage["token"] = jwtEncode($dataInsertImage);  // encode the dataInsertImage object into the token
+    $dataCompareFile["token"] = jwtEncode($dataCompareFile);  // encode the dataCompareFile object into the token
+    // encode the dataMailMergeRecipients object into the token
+    $dataMailMergeRecipients["token"] = jwtEncode($dataMailMergeRecipients);
+}
+
+/**
+ * Get demo file name by the extension
+ *
+ * @param string $createExt
+ * @param string $user
+ *
+ * @return string
+ */
+function tryGetDefaultByType($createExt, $user)
+{
+    $demoName = ($_GET["sample"] ? "sample." : "new.") . $createExt;
+    $demoPath = "assets" . DIRECTORY_SEPARATOR . ($_GET["sample"] ? "sample" : "new") . DIRECTORY_SEPARATOR;
+    $demoFilename = GetCorrectName($demoName);
+
+    if (!@copy(dirname(__FILE__) . DIRECTORY_SEPARATOR . $demoPath . $demoName, getStoragePath($demoFilename))) {
+        sendlog("Copy file error to ". getStoragePath($demoFilename), "common.log");
+        // Copy error!!!
     }
 
-    // get demo file name by the extension
-    function tryGetDefaultByType($createExt, $user) {
-        $demoName = ($_GET["sample"] ? "sample." : "new.") . $createExt;
-        $demoPath = "assets" . DIRECTORY_SEPARATOR . ($_GET["sample"] ? "sample" : "new") . DIRECTORY_SEPARATOR;
-        $demoFilename = GetCorrectName($demoName);
+    // create demo file meta information
+    createMeta($demoFilename, $user->id, $user->name);
 
-        if(!@copy(dirname(__FILE__) . DIRECTORY_SEPARATOR . $demoPath . $demoName, getStoragePath($demoFilename)))
-        {
-            sendlog("Copy file error to ". getStoragePath($demoFilename), "common.log");
-            // Copy error!!!
-        }
+    return $demoFilename;
+}
 
-        // create demo file meta information
-        createMeta($demoFilename, $user->id, $user->name);
+/**
+ * Get the callback url
+ *
+ * @param string $fileName
+ *
+ * @return string
+ */
+function getCallbackUrl($fileName)
+{
+    return serverPath(true) . '/'
+                . "webeditor-ajax.php"
+                . "?type=track"
+                . "&fileName=" . urlencode($fileName)
+                . "&userAddress=" . getClientIp();
+}
 
-        return $demoFilename;
-    }
+/**
+ * Get url to the created file
+ *
+ * @param string $fileName
+ * @param string $uid
+ * @param string $type
+ *
+ * @return string
+ */
+function getCreateUrl($fileName, $uid, $type)
+{
+    $ext = trim(getInternalExtension($fileName), '.');
+    return serverPath(false) . '/'
+            . "doceditor.php"
+            . "?fileExt=" . $ext
+            . "&user=" . $uid
+            . "&type=" . $type;
+}
 
-    // get the callback url
-    function getCallbackUrl($fileName) {
-        return serverPath(TRUE) . '/'
-                    . "webeditor-ajax.php"
-                    . "?type=track"
-                    . "&fileName=" . urlencode($fileName)
-                    . "&userAddress=" . getClientIp();
-    }
+/**
+ * Get url for history download
+ *
+ * @param string $fileName
+ * @param string $version
+ * @param string $file
+ * @param bool $isServer
+ *
+ * @return string
+ */
+function getHistoryDownloadUrl($fileName, $version, $file, $isServer = true)
+{
+    $userAddress = $isServer ? "&userAddress=" . getClientIp() : "";
+    return serverPath($isServer) . '/'
+        . "webeditor-ajax.php"
+        . "?type=history"
+        . "&fileName=" . urlencode($fileName)
+        . "&ver=" . $version
+        . "&file=" . urlencode($file)
+        . $userAddress;
+}
 
-    // get url to the created file
-    function getCreateUrl($fileName, $uid, $type) {
-        $ext = trim(getInternalExtension($fileName),'.');
-        return serverPath(false) . '/'
-                . "doceditor.php"
-                . "?fileExt=" . $ext
-                . "&user=" . $uid 
-                . "&type=" . $type;
-    }
+/**
+ * Get url to download a file
+ *
+ * @param string $fileName
+ * @param bool $isServer
+ *
+ * @return string
+ */
+function getDownloadUrl($fileName, $isServer = true)
+{
+    $userAddress = $isServer ? "&userAddress=" . getClientIp() : "";
+    return serverPath($isServer) . '/'
+        . "webeditor-ajax.php"
+        . "?type=download"
+        . "&fileName=" . urlencode($fileName)
+        . $userAddress;
+}
 
-    function getHistoryDownloadUrl($fileName, $version, $file, $isServer = TRUE) {
-        $userAddress = $isServer ? "&userAddress=" . getClientIp() : "";
-        return serverPath($isServer) . '/'
-            . "webeditor-ajax.php"
-            . "?type=history"
-            . "&fileName=" . urlencode($fileName)
-            . "&ver=" . $version
-            . "&file=" . urlencode($file)
-            . $userAddress;
-    }
+/**
+ * Get document history
+ *
+ * @param string $filename
+ * @param string $filetype
+ * @param string $docKey
+ * @param string $fileuri
+ * @param bool $isEnableDirectUrl
+ *
+ * @return array
+ */
+function getHistory($filename, $filetype, $docKey, $fileuri, $isEnableDirectUrl)
+{
+    $storagePath = $GLOBALS['STORAGE_PATH'];
+    $histDir = getHistoryDir(getStoragePath($filename));  // get the path to the file history
 
-    // get url to download a file
-    function getDownloadUrl($fileName, $isServer = TRUE) {
-        $userAddress = $isServer ? "&userAddress=" . getClientIp() : "";
-        return serverPath($isServer) . '/'
-            . "webeditor-ajax.php"
-            . "?type=download"
-            . "&fileName=" . urlencode($fileName)
-            . $userAddress;
-    }
+    if (getFileVersion($histDir) > 0) {  // check if the file was modified (the file version is greater than 0)
+        $curVer = getFileVersion($histDir);
 
-    // get document history
-    function getHistory($filename, $filetype, $docKey, $fileuri, $isEnableDirectUrl) {
-        $storagePath = $GLOBALS['STORAGE_PATH'];
-        $histDir = getHistoryDir(getStoragePath($filename));  // get the path to the file history
+        $hist = [];
+        $histData = [];
 
-        if (getFileVersion($histDir) > 0) {  // check if the file was modified (the file version is greater than 0)
-            $curVer = getFileVersion($histDir);
+        for ($i = 1; $i <= $curVer; $i++) {  // run through all the file versions
+            $obj = [];
+            $dataObj = [];
+            $verDir = getVersionDir($histDir, $i);  // get the path to the file version
 
-            $hist = [];
-            $histData = [];
+            // get document key
+            $key = $i == $curVer ? $docKey : file_get_contents($verDir . DIRECTORY_SEPARATOR . "key.txt");
+            $obj["key"] = $key;
+            $obj["version"] = $i;
 
-            for ($i = 1; $i <= $curVer; $i++) {  // run through all the file versions
-                $obj = [];
-                $dataObj = [];
-                $verDir = getVersionDir($histDir, $i);  // get the path to the file version
+            if ($i == 1) {  // check if the version number is equal to 1
+                // get meta data of this file
+                $createdInfo = file_get_contents($histDir . DIRECTORY_SEPARATOR . "createdInfo.json");
+                $json = json_decode($createdInfo, true);  // decode the meta data from the createdInfo.json file
 
-                $key = $i == $curVer ? $docKey : file_get_contents($verDir . DIRECTORY_SEPARATOR . "key.txt");  // get document key
-                $obj["key"] = $key;
-                $obj["version"] = $i;
-
-                if ($i == 1) {  // check if the version number is equal to 1
-                    $createdInfo = file_get_contents($histDir . DIRECTORY_SEPARATOR . "createdInfo.json");  // get meta data of this file
-                    $json = json_decode($createdInfo, true);  // decode the meta data from the createdInfo.json file
-
-                    $obj["created"] = $json["created"];
-                    $obj["user"] = [
-                        "id" => $json["uid"],
-                        "name" => $json["name"]
-                    ];
-                }
-
-
-                $fileExe = strtolower(pathinfo($filename, PATHINFO_EXTENSION));
-
-                $prevFileName = $verDir . DIRECTORY_SEPARATOR . "prev." . $filetype;
-                $prevFileName = substr($prevFileName, strlen(getStoragePath("")));
-                $dataObj["fileType"] = $fileExe;
-                $dataObj["key"] = $key;
-
-                $directUrl =  $i == $curVer ? FileUri($filename, FALSE) : getHistoryDownloadUrl($filename, $i, "prev.".$fileExe, FALSE);
-                $prevFileUrl = $i == $curVer ? $fileuri : getHistoryDownloadUrl($filename, $i, "prev.".$fileExe);
-                if (realpath($storagePath) === $storagePath) {
-                    $prevFileUrl = $i == $curVer ? getDownloadUrl($filename) : getHistoryDownloadUrl($filename, $i, "prev.".$fileExe);
-                    if ($isEnableDirectUrl) {
-                        $directUrl =  $i == $curVer ? getDownloadUrl($filename, FALSE) : getHistoryDownloadUrl($filename, $i, "prev.".$fileExe, FALSE);
-                    }
-                }
-
-                $dataObj["url"] = $prevFileUrl;  // write file url to the data object
-                if ($isEnableDirectUrl) {
-                    $dataObj["directUrl"] = $directUrl;  // write direct url to the data object
-                }
-                $dataObj["version"] = $i;
-
-                if ($i > 1) {  // check if the version number is greater than 1 (the document was modified)
-                    $changes = json_decode(file_get_contents(getVersionDir($histDir, $i - 1) . DIRECTORY_SEPARATOR . "changes.json"), true);  // get the path to the changes.json file
-                    $change = $changes["changes"][0];
-
-                    $obj["changes"] = $changes ? $changes["changes"] : null;  // write information about changes to the object
-                    $obj["serverVersion"] = $changes["serverVersion"];
-                    $obj["created"] = $change ? $change["created"] : null;
-                    $obj["user"] = $change ? $change["user"] : null;
-
-                    $prev = $histData[$i - 2];  // get the history data from the previous file version
-                    $dataObj["previous"] = $isEnableDirectUrl ? [  // write information about previous file version to the data object
-                        "fileType" => $prev["fileType"],
-                        "key" => $prev["key"],
-                        "url" => $prev["url"],
-                        "directUrl" => $prev["directUrl"]
-                    ] : [
-                        "fileType" => $prev["fileType"],
-                        "key" => $prev["key"],
-                        "url" => $prev["url"]
-                    ];
-
-                    // write the path to the diff.zip archive with differences in this file version
-                    $dataObj["changesUrl"] = getHistoryDownloadUrl($filename, $i - 1, "diff.zip");
-
-                }
-
-                if (isJwtEnabled()) {
-                    $dataObj["token"] = jwtEncode($dataObj);
-                }
-
-                array_push($hist, $obj);  // add object dictionary to the hist list
-                $histData[$i - 1] = $dataObj;  // write data object information to the history data
+                $obj["created"] = $json["created"];
+                $obj["user"] = [
+                    "id" => $json["uid"],
+                    "name" => $json["name"],
+                ];
             }
 
-            // write history information about the current file version
-            $out = [];
-            array_push($out, [
-                    "currentVersion" => $curVer,
-                    "history" => $hist
-                ],
-                $histData);
-            return $out;
+            $fileExe = mb_strtolower(pathinfo($filename, PATHINFO_EXTENSION));
+
+            $prevFileName = $verDir . DIRECTORY_SEPARATOR . "prev." . $filetype;
+            $prevFileName = mb_substr($prevFileName, mb_strlen(getStoragePath("")));
+            $dataObj["fileType"] = $fileExe;
+            $dataObj["key"] = $key;
+
+            $directUrl = $i == $curVer ? fileUri($filename, false) :
+                getHistoryDownloadUrl($filename, $i, "prev.".$fileExe, false);
+            $prevFileUrl = $i == $curVer ? $fileuri : getHistoryDownloadUrl($filename, $i, "prev.".$fileExe);
+            if (realpath($storagePath) === $storagePath) {
+                $prevFileUrl = $i == $curVer ? getDownloadUrl($filename) :
+                    getHistoryDownloadUrl($filename, $i, "prev.".$fileExe);
+                if ($isEnableDirectUrl) {
+                    $directUrl = $i == $curVer ? getDownloadUrl($filename, false) :
+                        getHistoryDownloadUrl($filename, $i, "prev.".$fileExe, false);
+                }
+            }
+
+            $dataObj["url"] = $prevFileUrl;  // write file url to the data object
+            if ($isEnableDirectUrl) {
+                $dataObj["directUrl"] = $directUrl;  // write direct url to the data object
+            }
+            $dataObj["version"] = $i;
+
+            if ($i > 1) {  // check if the version number is greater than 1 (the document was modified)
+                $changes = json_decode(file_get_contents(getVersionDir($histDir, $i - 1) .
+                    DIRECTORY_SEPARATOR . "changes.json"), true);  // get the path to the changes.json file
+                $change = $changes["changes"][0];
+
+                // write information about changes to the object
+                $obj["changes"] = $changes ? $changes["changes"] : null;
+                $obj["serverVersion"] = $changes["serverVersion"];
+                $obj["created"] = $change ? $change["created"] : null;
+                $obj["user"] = $change ? $change["user"] : null;
+
+                $prev = $histData[$i - 2];  // get the history data from the previous file version
+                // write information about previous file version to the data object
+                $dataObj["previous"] = $isEnableDirectUrl ? [
+                    "fileType" => $prev["fileType"],
+                    "key" => $prev["key"],
+                    "url" => $prev["url"],
+                    "directUrl" => $prev["directUrl"],
+                ] : [
+                    "fileType" => $prev["fileType"],
+                    "key" => $prev["key"],
+                    "url" => $prev["url"],
+                ];
+
+                // write the path to the diff.zip archive with differences in this file version
+                $dataObj["changesUrl"] = getHistoryDownloadUrl($filename, $i - 1, "diff.zip");
+            }
+
+            if (isJwtEnabled()) {
+                $dataObj["token"] = jwtEncode($dataObj);
+            }
+
+            $hist[] = $obj;  // add object dictionary to the hist list
+            $histData[$i - 1] = $dataObj;  // write data object information to the history data
         }
+
+        // write history information about the current file version
+        $out = [];
+        array_push(
+            $out,
+            [
+                "currentVersion" => $curVer,
+                "history" => $hist,
+            ],
+            $histData
+        );
+        return $out;
     }
+}
 
 ?>
 
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 <html>
 <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no, minimal-ui" />
+    <meta name="viewport" content="width=device-width, initial-scale=1,
+            maximum-scale=1, minimum-scale=1, user-scalable=no, minimal-ui" />
     <meta name="apple-mobile-web-app-capable" content="yes" />
     <meta name="mobile-web-app-capable" content="yes" />
     <link rel="icon" href="css/images/<?php echo getDocumentType($filename) ?>.ico" type="image/x-icon" />
@@ -388,7 +463,9 @@
         }
     </style>
 
-    <script type="text/javascript" src="<?php echo $GLOBALS["DOC_SERV_SITE_URL"].$GLOBALS["DOC_SERV_API_URL"] ?>"></script>
+    <script type="text/javascript" src="
+        <?php echo $GLOBALS["DOC_SERV_SITE_URL"].$GLOBALS["DOC_SERV_API_URL"] ?>">
+    </script>
 
     <script type="text/javascript">
 
@@ -436,7 +513,8 @@
             if (actionIndex != -1) {
                 var endIndex = href.indexOf("&", actionIndex + "&actionLink=".length);
                 if (endIndex != -1) {
-                    link = href.substring(0, actionIndex) + href.substring(endIndex) + "&actionLink=" + encodeURIComponent(linkParam);
+                    link = href.substring(0, actionIndex) + href.substring(endIndex) +
+                        "&actionLink=" + encodeURIComponent(linkParam);
                 } else {
                     link = href.substring(0, actionIndex) + "&actionLink=" + encodeURIComponent(linkParam);
                 }
@@ -446,11 +524,13 @@
             return link;
         }
 
-        // the user is trying to get link for opening the document which contains a bookmark, scrolling to the bookmark position
+        // the user is trying to get link for opening the document which contains a bookmark,
+        // scrolling to the bookmark position
         var onMakeActionLink = function (event) {
             var actionData = event.data;
             var linkParam = JSON.stringify(actionData);
-            docEditor.setActionLink(replaceActionLink(location.href, linkParam));  // set the link to the document which contains a bookmark
+            // set the link to the document which contains a bookmark
+            docEditor.setActionLink(replaceActionLink(location.href, linkParam));
         };
 
         // the meta information of the document is changed via the meta command
@@ -469,7 +549,11 @@
         var onRequestInsertImage = function(event) {
             docEditor.insertImage({  // insert an image into the file
                 "c": event.data.c,
-                <?php echo mb_strimwidth(json_encode($dataInsertImage), 1, strlen(json_encode($dataInsertImage)) - 2)?>
+                <?php echo mb_strimwidth(
+                    json_encode($dataInsertImage),
+                    1,
+                    mb_strlen(json_encode($dataInsertImage)) - 2
+                )?>
             })
         };
 
@@ -480,7 +564,8 @@
 
         // the user is trying to select recipients data by clicking the Mail merge button
         var onRequestMailMergeRecipients = function (event) {
-            docEditor.setMailMergeRecipients(<?php echo json_encode($dataMailMergeRecipients) ?>);  // insert recipient data for mail merge into the file
+            // insert recipient data for mail merge into the file
+            docEditor.setMailMergeRecipients(<?php echo json_encode($dataMailMergeRecipients) ?>);
         };
 
         var onRequestSaveAs = function (event) {  //  the user is trying to save file by clicking Save Copy as... button
@@ -521,11 +606,11 @@
 
         var сonnectEditor = function () {
 
-            <?php
-                if (!file_exists(getStoragePath($filename))) {
-                    echo "alert('File not found'); return;";
-                }
-            ?>
+        <?php
+        if (!file_exists(getStoragePath($filename))) {
+            echo "alert('File not found'); return;";
+        }
+        ?>
 
             config = <?php echo json_encode($config) ?>;
 
@@ -546,28 +631,30 @@
             };
 
             <?php
-                $out = getHistory($filename, $filetype, $docKey, $fileuri, $isEnableDirectUrl);
-                $history = $out[0];
-                $historyData = $out[1];
+            $out = getHistory($filename, $filetype, $docKey, $fileuri, $isEnableDirectUrl);
+            $history = $out[0];
+            $historyData = $out[1];
             ?>
 
-            <?php if ($user->id != "uid-0"): ?>
-                <?php if ($history != null && $historyData != null): ?>
+            <?php if ($user->id != "uid-0") { ?>
+                <?php if ($history != null && $historyData != null) { ?>
                     // the user is trying to show the document version history
                     config.events['onRequestHistory'] = function () {
-                        docEditor.refreshHistory(<?php echo json_encode($history) ?>);  // show the document version history
+                        // show the document version history
+                        docEditor.refreshHistory(<?php echo json_encode($history) ?>);
                     };
                     // the user is trying to click the specific document version in the document version history
                     config.events['onRequestHistoryData'] = function (event) {
                         var ver = event.data;
                         var histData = <?php echo json_encode($historyData) ?>;
-                        docEditor.setHistoryData(histData[ver - 1]);  // send the link to the document for viewing the version history
+                        // send the link to the document for viewing the version history
+                        docEditor.setHistoryData(histData[ver - 1]);
                     };
                     // the user is trying to go back to the document from viewing the document version history
                     config.events['onRequestHistoryClose'] = function () {
                         document.location.reload();
                     };
-                <?php endif; ?>
+                <?php } ?>
                 // add mentions for not anonymous users
                 config.events['onRequestUsers'] = function () {
                     docEditor.setUsers({  // set a list of users to mention in the comments
@@ -582,7 +669,7 @@
                 };
                 // prevent file renaming for anonymous users
                 config.events['onRequestRename'] = onRequestRename;
-            <?php endif; ?>
+            <?php } ?>
 
             if (config.editorConfig.createUrl) {
                 config.events.onRequestSaveAs = onRequestSaveAs;

web/documentserver-example/php/functions.php

@@ -1,6 +1,5 @@
 <?php
 /**
- *
  * (c) Copyright Ascensio System SIA 2023
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -14,28 +13,33 @@
  * 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.
- *
  */
 
-require_once( dirname(__FILE__) . '/config.php' );
-require_once( dirname(__FILE__) . '/jwtmanager.php' );
+require_once dirname(__FILE__) . '/config.php';
+require_once dirname(__FILE__) . '/jwtmanager.php';
 
-
-// file uploading
-function DoUpload($fileUri) {
+/**
+ * File uploading
+ *
+ * @param string $fileUri
+ *
+ * @throws Exception If file type is not supported or copy operation is unsuccessful
+ *
+ * @return null
+ */
+function doUpload($fileUri)
+{
     $_fileName = GetCorrectName($fileUri);
 
     // check if file extension is supported by the editor
-    $ext = strtolower('.' . pathinfo($_fileName, PATHINFO_EXTENSION));
-    if (!in_array($ext, getFileExts()))
-    {
+    $ext = mb_strtolower('.' . pathinfo($_fileName, PATHINFO_EXTENSION));
+    if (!in_array($ext, getFileExts())) {
         throw new Exception("File type is not supported");
     }
 
     // check if the file copy operation is successful
-    if(!@copy($fileUri, getStoragePath($_fileName)))
-    {
-        $errors= error_get_last();
+    if (!@copy($fileUri, getStoragePath($_fileName))) {
+        $errors = error_get_last();
         $err = "Copy file error: " . $errors['type'] . "<br />\n" . $errors['message'];
         throw new Exception($err);
     }
@@ -43,21 +47,22 @@ function DoUpload($fileUri) {
     return $_fileName;
 }
 
-
 /**
-* Generate an error code table
-*
-* @param string $errorCode   Error code
-*
-* @return null
-*/
-function ProcessConvServResponceError($errorCode) {
+ * Generate an error code table
+ *
+ * @param string $errorCode Error code
+ *
+ * @throws Exception If error code is unknown
+ *
+ * @return null
+ */
+function processConvServResponceError($errorCode)
+{
     $errorMessageTemplate = "Error occurred in the document service: ";
     $errorMessage = '';
 
     // add the error message to the error message template depending on the error code
-    switch ($errorCode)
-    {
+    switch ($errorCode) {
         case -8:
             $errorMessage = $errorMessageTemplate . "Error document VKey";
             break;
@@ -92,38 +97,48 @@ function ProcessConvServResponceError($errorCode) {
     throw new Exception($errorMessage);
 }
 
-
 /**
-* Translation key to a supported form.
-*
-* @param string $expected_key  Expected key
-*
-* @return Supported key
-*/
-function GenerateRevisionId($expected_key) {
-    if (strlen($expected_key) > 20) $expected_key = crc32( $expected_key);  // if the expected key length is greater than 20, calculate the crc32 for it
+ * Translation key to a supported form.
+ *
+ * @param string $expected_key Expected key
+ *
+ * @return string key
+ */
+function generateRevisionId($expected_key)
+{
+    if (mb_strlen($expected_key) > 20) {
+        $expected_key = crc32($expected_key);
+    }  // if the expected key length is greater than 20, calculate the crc32 for it
     $key = preg_replace("[^0-9-.a-zA-Z_=]", "_", $expected_key);
-    $key = substr($key, 0, min(array(strlen($key), 20)));  // the resulting key length is 20 or less
+    $key = mb_substr($key, 0, min([mb_strlen($key), 20]));  // the resulting key length is 20 or less
     return $key;
 }
 
-
 /**
-* Request for conversion to a service.
-*
-* @param string $document_uri            Uri for the document to convert
-* @param string $from_extension          Document extension
-* @param string $to_extension            Extension to which to convert
-* @param string $document_revision_id    Key for caching on service
-* @param bool   $is_async                Perform conversions asynchronously
-*
-* @return Document request result of conversion
-*/
-function SendRequestToConvertService($document_uri, $from_extension, $to_extension, $document_revision_id, $is_async, $filePass, $lang) {
-    if (empty($from_extension))
-    {
+ * Request for conversion to a service.
+ *
+ * @param string $document_uri         Uri for the document to convert
+ * @param string $from_extension       Document extension
+ * @param string $to_extension         Extension to which to convert
+ * @param string $document_revision_id Key for caching on service
+ * @param bool   $is_async             Perform conversions asynchronously
+ * @param string   $filePass
+ * @param string   $lang
+ *
+ * @return string request result of conversion
+ */
+function sendRequestToConvertService(
+    $document_uri,
+    $from_extension,
+    $to_extension,
+    $document_revision_id,
+    $is_async,
+    $filePass,
+    $lang
+) {
+    if (empty($from_extension)) {
         $path_parts = pathinfo($document_uri);
-        $from_extension = strtolower($path_parts['extension']);
+        $from_extension = mb_strtolower($path_parts['extension']);
     }
 
     // if title is undefined, then replace it with a random guid
@@ -137,19 +152,19 @@ function SendRequestToConvertService($document_uri, $from_extension, $to_extensi
     }
 
     // generate document token
-    $document_revision_id = GenerateRevisionId($document_revision_id);
+    $document_revision_id = generateRevisionId($document_revision_id);
 
     $urlToConverter = $GLOBALS['DOC_SERV_SITE_URL'].$GLOBALS['DOC_SERV_CONVERTER_URL'];
 
     $arr = [
         "async" => $is_async,
         "url" => $document_uri,
-        "outputtype" => trim($to_extension,'.'),
+        "outputtype" => trim($to_extension, '.'),
         "filetype" => trim($from_extension, '.'),
         "title" => $title,
         "key" => $document_revision_id,
         "password" => $filePass,
-        "region" => $lang
+        "region" => $lang,
     ];
 
     // add header token
@@ -157,88 +172,111 @@ function SendRequestToConvertService($document_uri, $from_extension, $to_extensi
     $jwtHeader = $GLOBALS['DOC_SERV_JWT_HEADER'] == "" ? "Authorization" : $GLOBALS['DOC_SERV_JWT_HEADER'];
 
     if (isJwtEnabled()) {
-        $headerToken = jwtEncode([ "payload" => $arr ]);
+        $headerToken = jwtEncode(["payload" => $arr]);
         $arr["token"] = jwtEncode($arr);
     }
 
     $data = json_encode($arr);
 
     // request parameters
-    $opts = array('http' => array(
-                'method'  => 'POST',
-                'timeout' => $GLOBALS['DOC_SERV_TIMEOUT'],
-                'header'=> "Content-type: application/json\r\n" . 
-                            "Accept: application/json\r\n" .
-                            (empty($headerToken) ? "" : $jwtHeader.": Bearer $headerToken\r\n"),
-                'content' => $data
-            )
-        );
+    $opts = ['http' => [
+        'method' => 'POST',
+        'timeout' => $GLOBALS['DOC_SERV_TIMEOUT'],
+        'header' => "Content-type: application/json\r\n" .
+                    "Accept: application/json\r\n" .
+                    (empty($headerToken) ? "" : $jwtHeader.": Bearer $headerToken\r\n"),
+        'content' => $data,
+    ],
+    ];
 
-    if (substr($urlToConverter, 0, strlen("https")) === "https") {
-        if($GLOBALS['DOC_SERV_VERIFY_PEER_OFF'] === TRUE) {
-            $opts['ssl'] = array( 'verify_peer' => FALSE, 'verify_peer_name' => FALSE );
+    if (mb_substr($urlToConverter, 0, mb_strlen("https")) === "https") {
+        if ($GLOBALS['DOC_SERV_VERIFY_PEER_OFF'] === true) {
+            $opts['ssl'] = ['verify_peer' => false, 'verify_peer_name' => false];
         }
     }
- 
+
     $context = stream_context_create($opts);
-    $response_data = file_get_contents($urlToConverter, FALSE, $context);
+    $response_data = file_get_contents($urlToConverter, false, $context);
 
     return $response_data;
 }
 
-
 /**
-* The method is to convert the file to the required format.
-*
-* Example:
-* string convertedDocumentUri;
-* GetConvertedUri("http://helpcenter.onlyoffice.com/content/GettingStarted.pdf", ".pdf", ".docx", "http://helpcenter.onlyoffice.com/content/GettingStarted.pdf", false, out convertedDocumentUri);
-* 
-* @param string $document_uri            Uri for the document to convert
-* @param string $from_extension          Document extension
-* @param string $to_extension            Extension to which to convert
-* @param string $document_revision_id    Key for caching on service
-* @param bool   $is_async                Perform conversions asynchronously
-* @param string $converted_document_uri  Uri to the converted document
-*
-* @return The percentage of completion of conversion
-*/
-function GetConvertedUri($document_uri, $from_extension, $to_extension, $document_revision_id, $is_async, &$converted_document_uri, $filePass, $lang) {
+ * The method is to convert the file to the required format.
+ *
+ * Example:
+ * string convertedDocumentUri;
+ * getConvertedUri("http://helpcenter.onlyoffice.com/content/GettingStarted.pdf",
+ * ".pdf", ".docx", "http://helpcenter.onlyoffice.com/content/GettingStarted.pdf", false, out convertedDocumentUri);
+ *
+ * @param string $document_uri           Uri for the document to convert
+ * @param string $from_extension         Document extension
+ * @param string $to_extension           Extension to which to convert
+ * @param string $document_revision_id   Key for caching on service
+ * @param bool   $is_async               Perform conversions asynchronously
+ * @param string $converted_document_uri Uri to the converted document
+ * @param string $filePass               File pass
+ * @param string $lang                   Language
+ *
+ * @throws Exception if an error occurs
+ *
+ * @return int percentage of completion of conversion
+ */
+function getConvertedUri(
+    $document_uri,
+    $from_extension,
+    $to_extension,
+    $document_revision_id,
+    $is_async,
+    &$converted_document_uri,
+    $filePass,
+    $lang
+) {
     $converted_document_uri = "";
-    $responceFromConvertService = SendRequestToConvertService($document_uri, $from_extension, $to_extension, $document_revision_id, $is_async, $filePass, $lang);
+    $responceFromConvertService = sendRequestToConvertService(
+        $document_uri,
+        $from_extension,
+        $to_extension,
+        $document_revision_id,
+        $is_async,
+        $filePass,
+        $lang
+    );
     $json = json_decode($responceFromConvertService, true);
 
     // if an error occurs, then display an error message
     $errorElement = $json["error"];
-    if ($errorElement != NULL && $errorElement != "") ProcessConvServResponceError($errorElement);
+    if ($errorElement != null && $errorElement != "") {
+        processConvServResponceError($errorElement);
+    }
 
     $isEndConvert = $json["endConvert"];
     $percent = $json["percent"];
 
     // if the conversion is completed successfully
-    if ($isEndConvert != NULL && $isEndConvert == true)
-    {
+    if ($isEndConvert != null && $isEndConvert == true) {
         // then get the file url
         $converted_document_uri = $json["fileUrl"];
         $percent = 100;
-    }
-    // otherwise, get the percentage of conversion completion
-    else if ($percent >= 100)
+    } elseif ($percent >= 100) { // otherwise, get the percentage of conversion completion
         $percent = 99;
+    }
 
     return $percent;
 }
 
-
 /**
-* Processing document received from the editing service.
-*
-* @param string $document_response     The result from editing service
-* @param string $response_uri          Uri to the converted document
-*
-* @return The percentage of completion of conversion
-*/
-function GetResponseUri($document_response, &$response_uri) {
+ * Processing document received from the editing service.
+ *
+ * @param Response $document_response The result from editing service
+ * @param string $response_uri      Uri to the converted document
+ *
+ * @throws Exception if an error occurs
+ *
+ * @return int percentage of completion of conversion
+ */
+function getResponseUri($document_response, &$response_uri)
+{
     $response_uri = "";
     $resultPercent = 0;
 
@@ -248,33 +286,35 @@ function GetResponseUri($document_response, &$response_uri) {
 
     // if an error occurs, then display an error message
     $errorElement = $document_response->Error;
-    if ($errorElement != NULL && $errorElement != "") ProcessConvServResponceError($document_response->Error);
+    if ($errorElement != null && $errorElement != "") {
+        processConvServResponceError($document_response->Error);
+    }
 
     $endConvert = $document_response->EndConvert;
-    if ($endConvert != NULL && $endConvert == "") throw new Exception("Invalid answer format");
+    if ($endConvert != null && $endConvert == "") {
+        throw new Exception("Invalid answer format");
+    }
 
     // if the conversion is completed successfully
-    if ($endConvert != NULL && strtolower($endConvert) == true)
-    {
+    if ($endConvert != null && mb_strtolower($endConvert) == true) {
         $fileUrl = $document_response->FileUrl;
-        if ($fileUrl == NULL || $fileUrl == "") throw new Exception("Invalid answer format");
+        if ($fileUrl == null || $fileUrl == "") {
+            throw new Exception("Invalid answer format");
+        }
 
         // get the response file url
         $response_uri = $fileUrl;
         $resultPercent = 100;
-    }
-    // otherwise, get the percentage of conversion completion
-    else
-    {
+    } else { // otherwise, get the percentage of conversion completion
         $percent = $document_response->Percent;
 
-        if ($percent != NULL && $percent != "")
+        if ($percent != null && $percent != "") {
             $resultPercent = $percent;
-        if ($resultPercent >= 100)
+        }
+        if ($resultPercent >= 100) {
             $resultPercent = 99;
+        }
     }
 
     return $resultPercent;
 }
-
-?>

web/documentserver-example/php/index.php

@@ -1,32 +1,34 @@
 <?php
-    /**
-     *
-     * (c) Copyright Ascensio System SIA 2023
-     *
-     * 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.
-     *
-     */
 
-    require_once( dirname(__FILE__) . '/config.php' );
-    require_once( dirname(__FILE__) . '/common.php' );
-    require_once( dirname(__FILE__) . '/functions.php' );
-    require_once( dirname(__FILE__) . '/users.php' );
+namespace PhpExample;
 
-    $user = isset($_GET["user"]) ? $_GET["user"] : "";
-    $directUrlArg = isset($_GET["directUrl"]) ? "&directUrl=" . $_GET["directUrl"] : "";
+/**
+ * (c) Copyright Ascensio System SIA 2023
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+require_once dirname(__FILE__) . '/config.php';
+require_once dirname(__FILE__) . '/common.php';
+require_once dirname(__FILE__) . '/functions.php';
+require_once dirname(__FILE__) . '/users.php';
+
+$user = $_GET["user"] ?? "";
+$directUrlArg = isset($_GET["directUrl"]) ? "&directUrl=" . $_GET["directUrl"] : "";
 ?>
 
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 <html lang="en">
 
     <head>
@@ -36,7 +38,8 @@
 
         <link rel="icon" href="./favicon.ico" type="image/x-icon" />
 
-        <link rel="stylesheet" type="text/css" href="https://fonts.googleapis.com/css?family=Open+Sans:900,800,700,600,500,400,300&subset=latin,cyrillic-ext,cyrillic,latin-ext" />
+        <link rel="stylesheet" type="text/css" href="https://fonts.googleapis.com/css?family=Open+Sans:900,
+            800,700,600,500,400,300&subset=latin,cyrillic-ext,cyrillic,latin-ext" />
 
         <link rel="stylesheet" type="text/css" href="css/stylesheet.css" />
         <link rel="stylesheet" type="text/css" href="css/media.css">
@@ -62,25 +65,36 @@
                                         <div class="create-panel clearFix">
                                             <ul class="try-editor-list clearFix">
                                                 <li>
-                                                    <a class="try-editor word reload-page" target="_blank" href="doceditor.php?fileExt=docx&user=<?php echo htmlentities($user); ?>">Document</a>
+                                                    <a class="try-editor word reload-page" target="_blank"
+                                                       href="doceditor.php?fileExt=docx&user=
+                                                       <?php echo htmlentities($user); ?>">Document</a>
                                                 </li>
                                                 <li>
-                                                    <a class="try-editor cell reload-page" target="_blank" href="doceditor.php?fileExt=xlsx&user=<?php echo htmlentities($user); ?>">Spreadsheet</a>
+                                                    <a class="try-editor cell reload-page" target="_blank"
+                                                       href="doceditor.php?fileExt=xlsx&user=
+                                                       <?php echo htmlentities($user); ?>">Spreadsheet</a>
                                                 </li>
                                                 <li>
-                                                    <a class="try-editor slide reload-page" target="_blank" href="doceditor.php?fileExt=pptx&user=<?php echo htmlentities($user); ?>">Presentation</a>
+                                                    <a class="try-editor slide reload-page" target="_blank"
+                                                       href="doceditor.php?fileExt=pptx&user=
+                                                       <?php echo htmlentities($user); ?>">Presentation</a>
                                                 </li>
                                                 <li>
-                                                    <a class="try-editor form reload-page" target="_blank" href="doceditor.php?fileExt=docxf&user=<?php echo htmlentities($user); ?>">Form template</a>
+                                                    <a class="try-editor form reload-page" target="_blank"
+                                                       href="doceditor.php?fileExt=docxf&user=
+                                                       <?php echo htmlentities($user); ?>">Form template</a>
                                                 </li>
                                             </ul>
                                             <label class="side-option">
-                                                <input type="checkbox" id="createSample" class="checkbox" />With sample content
+                                                <input type="checkbox" id="createSample" class="checkbox" />
+                                                With sample content
                                             </label>
                                         </div>
                                         <div class="upload-panel clearFix">
                                             <a class="file-upload">Upload file
-                                                <input type="file" id="fileupload" name="files" data-url="webeditor-ajax.php?type=upload&user=<?php echo htmlentities($user); ?>" />
+                                                <input type="file" id="fileupload" name="files"
+                                                       data-url="webeditor-ajax.php?type=upload&user=
+                                                       <?php echo htmlentities($user); ?>" />
                                             </a>
                                         </div>
 
@@ -90,8 +104,8 @@
                                                     <span class="select-user">Username</span>
                                                     <img id="info" class="info" src="css/images/info.svg" />
                                                     <select class="select-user" id="user">
-                                                        <?php foreach(getAllUsers() as $user_l) {
-                                                            $name = $user_l->name ? $user_l->name : "Anonymous";
+                                                        <?php foreach (getAllUsers() as $user_l) {
+                                                            $name = $user_l->name ?: "Anonymous";
                                                             echo '<option value="'.$user_l->id.'">'.$name.'</option>';
                                                         } ?>
                                                     </select>
@@ -113,8 +127,13 @@
                                             <tr>
                                                 <td valign="middle">
                                                     <label class="side-option">
-                                                        <input id="directUrl" type="checkbox" class="checkbox" />Try opening on client
-                                                        <img id="directUrlInfo" class="info info-tooltip" data-id="directUrlInfo" data-tooltip="Some files can be opened in the user's browser without connecting to the document server." src="css/images/info.svg" />
+                                                        <input id="directUrl" type="checkbox" class="checkbox" />
+                                                        Try opening on client
+                                                        <img id="directUrlInfo" class="info info-tooltip"
+                                                             data-id="directUrlInfo" data-tooltip=
+                                                             "Some files can be opened in the user's
+                                                             browser without connecting to the document server."
+                                                             src="css/images/info.svg" />
                                                     </label>
                                                 </td>
                                             </tr>
@@ -126,20 +145,32 @@
                                 <div class="main-panel">
                                     <?php
                                     $storedFiles = getStoredFiles();
-                                    if (!empty($storedFiles)): ?>
+                                    if (!empty($storedFiles)) { ?>
                                         <div id="portal-info" style="display: none">
-                                    <?php else: ?>
+                                    <?php } else { ?>
                                         <div id="portal-info" style="display: table-cell">
-                                    <?php endif; ?>
+                                    <?php } ?>
                                         <span class="portal-name">ONLYOFFICE Document Editors – Welcome!</span>
                                         <span class="portal-descr">
-                                            Get started with a demo-sample of ONLYOFFICE Document Editors, the first html5-based editors.
-                                            <br /> You may upload your own documents for testing using the "<b>Upload file</b>" button and <b>selecting</b> the necessary files on your PC.
+                                            Get started with a demo-sample of ONLYOFFICE Document Editors,
+                                            the first html5-based editors.
+                                            <br /> You may upload your own documents for testing using the
+                                            "<b>Upload file</b>" button and <b>selecting</b>
+                                            the necessary files on your PC.
                                         </span>
-                                        <span class="portal-descr">Please do NOT use this integration example on your own server without proper code modifications, it is intended for testing purposes only. In case you enabled this test example, disable it before going for production.</span>
-                                        <span class="portal-descr">You can open the same document using different users in different Web browser sessions, so you can check out multi-user editing functions.</span>
-                                        <?php foreach(getAllUsers() as $user_l) {
-                                            $name = $user_l->name ? $user_l->name : "Anonymous";
+                                        <span class="portal-descr">
+                                            Please do NOT use this integration example on your own server without
+                                            proper code modifications, it is intended for testing purposes only.
+                                            In case you enabled this test example, disable it before going for
+                                            production.
+                                        </span>
+                                        <span class="portal-descr">
+                                            You can open the same document using different
+                                            users in different Web browser sessions, so you can check out multi-user
+                                            editing functions.
+                                        </span>
+                                        <?php foreach (getAllUsers() as $user_l) {
+                                            $name = $user_l->name ?: "Anonymous";
                                             echo '<div class="user-descr">';
                                             echo '<b>'.$name.'</b>';
                                             echo '<ul>';
@@ -151,17 +182,28 @@
                                         } ?>
                                     </div>
                                     <?php
-                                        if (!empty($storedFiles)) { ?>
+                                    if (!empty($storedFiles)) { ?>
                                             <div class="stored-list">
                                                 <span class="header-list">Your documents</span>
                                                 <table class="tableHeader" cellspacing="0" cellpadding="0" width="100%">
                                                     <thead>
                                                     <tr>
-                                                        <td class="tableHeaderCell tableHeaderCellFileName">Filename</td>
-                                                        <td class="tableHeaderCell tableHeaderCellEditors contentCells-shift">Editors</td>
-                                                        <td class="tableHeaderCell tableHeaderCellViewers">Viewers</td>
-                                                        <td class="tableHeaderCell tableHeaderCellDownload">Download</td>
-                                                        <td class="tableHeaderCell tableHeaderCellRemove">Remove</td>
+                                                        <td class="tableHeaderCell tableHeaderCellFileName">
+                                                            Filename
+                                                        </td>
+                                                        <td class="tableHeaderCell tableHeaderCellEditors
+                                                        contentCells-shift">
+                                                            Editors
+                                                        </td>
+                                                        <td class="tableHeaderCell tableHeaderCellViewers">
+                                                            Viewers
+                                                        </td>
+                                                        <td class="tableHeaderCell tableHeaderCellDownload">
+                                                            Download
+                                                        </td>
+                                                        <td class="tableHeaderCell tableHeaderCellRemove">
+                                                            Remove
+                                                        </td>
                                                     </tr>
                                                     </thead>
                                                 </table>
@@ -169,90 +211,234 @@
                                                     <table cellspacing="0" cellpadding="0" width="100%">
                                                         <tbody>
                                                             <?php foreach ($storedFiles as &$storeFile) {
-                                                                echo '<tr class="tableRow" title="'.$storeFile->name.' ['.getFileVersion(getHistoryDir(getStoragePath($storeFile->name))).']">';
+                                                                echo '<tr class="tableRow" title="'.
+                                                                    $storeFile->name.' ['.
+                                                                    getFileVersion(
+                                                                        getHistoryDir(
+                                                                            getStoragePath($storeFile->name)
+                                                                        )
+                                                                    ).
+                                                                    ']">';
                                                                 echo ' <td class="contentCells">';
-                                                                echo '  <a class="stored-edit '.$storeFile->documentType.'" href="doceditor.php?fileID='.urlencode($storeFile->name).'&user='.htmlentities($user) . $directUrlArg .'" target="_blank">';
+                                                                echo '  <a class="stored-edit '.
+                                                                    $storeFile->documentType.
+                                                                    '" href="doceditor.php?fileID='.
+                                                                    urlencode($storeFile->name) .
+                                                                    '&user='.htmlentities($user) .
+                                                                    $directUrlArg .'" target="_blank">';
                                                                 echo '   <span>'.$storeFile->name.'</span>';
                                                                 echo '  </a>';
                                                                 echo ' </td>';
                                                                 if ($storeFile->canEdit) {
                                                                     echo ' <td class="contentCells contentCells-icon">';
-                                                                    echo '  <a href="doceditor.php?fileID=' . urlencode($storeFile->name) . '&user=' . htmlentities($user) . $directUrlArg . '&action=edit&type=desktop" target="_blank">';
-                                                                    echo '   <img src="css/images/desktop.svg" alt="Open in editor for full size screens" title="Open in editor for full size screens" /></a>';
+                                                                    echo '  <a href="doceditor.php?fileID=' .
+                                                                        urlencode($storeFile->name) .
+                                                                        '&user=' . htmlentities($user) .
+                                                                        $directUrlArg .
+                                                                        '&action=edit&type=desktop" target="_blank">';
+                                                                    echo '   <img src="css/images/desktop.svg" 
+                                                                            alt="Open in editor for full size screens" 
+                                                                            title="Open in editor for full size screens"
+                                                                            /></a>';
                                                                     echo ' </td>';
                                                                     echo ' <td class="contentCells contentCells-icon">';
-                                                                    echo '  <a href="doceditor.php?fileID=' . urlencode($storeFile->name) . '&user=' . htmlentities($user) . $directUrlArg . '&action=edit&type=mobile" target="_blank">';
-                                                                    echo '   <img src="css/images/mobile.svg" alt="Open in editor for mobile devices" title="Open in editor for mobile devices" /></a>';
+                                                                    echo '  <a href="doceditor.php?fileID=' .
+                                                                        urlencode($storeFile->name) .
+                                                                        '&user=' . htmlentities($user) .
+                                                                        $directUrlArg .
+                                                                        '&action=edit&type=mobile" target="_blank">';
+                                                                    echo '   <img src="css/images/mobile.svg" 
+                                                                            alt="Open in editor for mobile devices" 
+                                                                            title="Open in editor for mobile devices"
+                                                                            /></a>';
                                                                     echo ' </td>';
                                                                     echo ' <td class="contentCells contentCells-icon">';
-                                                                    echo '  <a href="doceditor.php?fileID=' . urlencode($storeFile->name) . '&user=' . htmlentities($user) . $directUrlArg . '&action=comment&type=desktop" target="_blank">';
-                                                                    echo '   <img src="css/images/comment.svg" alt="Open in editor for comment" title="Open in editor for comment" /></a>';
+                                                                    echo '  <a href="doceditor.php?fileID=' .
+                                                                        urlencode($storeFile->name) .
+                                                                        '&user=' .
+                                                                        htmlentities($user) .
+                                                                        $directUrlArg .
+                                                                        '&action=comment&type=desktop" target="_blank">'
+                                                                    ;
+                                                                    echo '   <img src="css/images/comment.svg"
+                                                                        alt="Open in editor for comment" 
+                                                                        title="Open in editor for comment" />
+                                                                        </a>';
                                                                     echo ' </td>';
                                                                     if ($storeFile->documentType == "word") {
-                                                                        echo ' <td class="contentCells contentCells-icon">';
-                                                                        echo '  <a href="doceditor.php?fileID=' . urlencode($storeFile->name) . '&user=' . htmlentities($user) . $directUrlArg . '&action=review&type=desktop" target="_blank">';
-                                                                        echo '   <img src="css/images/review.svg" alt="Open in editor for review" title="Open in editor for review" /></a>';
+                                                                        echo ' <td 
+                                                                            class="contentCells contentCells-icon">';
+                                                                        echo '  <a href="doceditor.php?fileID=' .
+                                                                            urlencode($storeFile->name) .
+                                                                            '&user=' .
+                                                                            htmlentities($user) .
+                                                                            $directUrlArg .
+                                                                            '&action=review&type=desktop"
+                                                                                target="_blank">';
+                                                                        echo '   <img src="css/images/review.svg" 
+                                                                            alt="Open in editor for review" 
+                                                                            title="Open in editor for review" />
+                                                                            </a>';
                                                                         echo ' </td>';
-                                                                    } else if ($storeFile->documentType == "cell") {
-                                                                        echo ' <td class="contentCells contentCells-icon">';
-                                                                        echo '  <a href="doceditor.php?fileID=' . urlencode($storeFile->name) . '&user=' . htmlentities($user) . $directUrlArg . '&action=filter&type=desktop" target="_blank">';
-                                                                        echo '   <img src="css/images/filter.svg" alt="Open in editor without access to change the filter" title="Open in editor without access to change the filter" /></a>';
+                                                                    } elseif ($storeFile->documentType == "cell") {
+                                                                        echo ' <td class="contentCells 
+                                                                            contentCells-icon">';
+                                                                        echo '  <a href="doceditor.php?fileID=' .
+                                                                            urlencode($storeFile->name) .
+                                                                            '&user=' .
+                                                                            htmlentities($user) .
+                                                                            $directUrlArg .
+                                                                            '&action=filter&type=desktop" 
+                                                                            target="_blank">';
+                                                                        echo '   <img src="css/images/filter.svg" 
+                                                                            alt="Open in editor without 
+                                                                            access to change the filter"
+                                                                            title="Open in editor without 
+                                                                            access to change the filter" /></a>';
                                                                         echo ' </td>';
                                                                     }
                                                                     if ($storeFile->documentType == "word") {
-                                                                        echo ' <td class="contentCells contentCells-icon ">';
-                                                                        echo '  <a href="doceditor.php?fileID=' . urlencode($storeFile->name) . '&user=' . htmlentities($user) . $directUrlArg . '&action=blockcontent&type=desktop" target="_blank">';
-                                                                        echo '   <img src="css/images/block-content.svg" alt="Open in editor without content control modification" title="Open in editor without content control modification" /></a>';
-                                                                        echo ' </td>';
-                                                                    } else{
-                                                                       echo ' <td class="contentCells contentCells-icon"></td> ';
-                                                                    }
-                                                                    if($storeFile->documentType!="word" && $storeFile->documentType!="cell"){
-                                                                        echo ' <td class="contentCells contentCells-icon"></td>';
-                                                                    }
-                                                                    if ($storeFile->isFillFormDoc) {
-                                                                        echo ' <td class="contentCells contentCells-shift contentCells-icon firstContentCellShift">';
-                                                                        echo '  <a href="doceditor.php?fileID=' . urlencode($storeFile->name) . '&user=' . htmlentities($user) . $directUrlArg . '&action=fillForms&type=desktop" target="_blank">';
-                                                                        echo '   <img src="css/images/fill-forms.svg" alt="Open in editor for filling in forms" title="Open in editor for filling in forms" /></a>';
+                                                                        echo ' <td class="contentCells 
+                                                                            contentCells-icon ">';
+                                                                        echo '  <a href="doceditor.php?fileID=' .
+                                                                            urlencode($storeFile->name) .
+                                                                            '&user=' .
+                                                                            htmlentities($user) .
+                                                                            $directUrlArg .
+                                                                            '&action=blockcontent&type=desktop" 
+                                                                            target="_blank">';
+                                                                        echo '   <img src="css/images/block-content.svg"
+                                                                            alt="Open in editor without 
+                                                                            content control modification"
+                                                                            title="Open in editor without
+                                                                            content control modification" /></a>';
                                                                         echo ' </td>';
                                                                     } else {
-                                                                        echo ' <td class="contentCells contentCells-shift contentCells-icon firstContentCellShift"></td> ';
+                                                                        echo ' <td class="contentCells 
+                                                                            contentCells-icon"></td> ';
                                                                     }
-                                                                 } else if ($storeFile->isFillFormDoc) {
-                                                                    echo ' <td class="contentCells contentCells-icon"></td>';
-                                                                    echo ' <td class="contentCells contentCells-icon">';
-                                                                    echo '  <a href="doceditor.php?fileID=' . urlencode($storeFile->name) . '&user=' . htmlentities($user) . $directUrlArg . '&action=fillForms&type=desktop" target="_blank">';
-                                                                    echo '   <img src="css/images/mobile-fill-forms.svg" alt="Open in editor for filling in forms for mobile devices" title="Open in editor for filling in forms for mobile devices" /></a>';
+                                                                    if ($storeFile->documentType != "word"
+                                                                        && $storeFile->documentType != "cell"
+                                                                    ) {
+                                                                        echo ' <td class="contentCells 
+                                                                            contentCells-icon"></td>';
+                                                                    }
+                                                                    if ($storeFile->isFillFormDoc) {
+                                                                        echo ' <td class="contentCells 
+                                                                            contentCells-shift contentCells-icon 
+                                                                            firstContentCellShift">';
+                                                                        echo '  <a href="doceditor.php?fileID=' .
+                                                                            urlencode($storeFile->name) .
+                                                                            '&user=' .
+                                                                            htmlentities($user) .
+                                                                            $directUrlArg .
+                                                                            '&action=fillForms&type=desktop"
+                                                                            target="_blank">';
+                                                                        echo '   <img src="css/images/fill-forms.svg"
+                                                                            alt="Open in editor for filling in forms"
+                                                                            title="Open in editor for filling in forms" 
+                                                                            /></a>';
+                                                                        echo ' </td>';
+                                                                    } else {
+                                                                        echo ' <td class="contentCells 
+                                                                            contentCells-shift contentCells-icon 
+                                                                            firstContentCellShift"></td> ';
+                                                                    }
+                                                                } elseif ($storeFile->isFillFormDoc) {
+                                                                    echo ' <td class="contentCells 
+                                                                            contentCells-icon"></td>';
+                                                                    echo ' <td class="contentCells 
+                                                                            contentCells-icon">';
+                                                                    echo '  <a href="doceditor.php?fileID=' .
+                                                                        urlencode($storeFile->name) .
+                                                                        '&user=' .
+                                                                        htmlentities($user) .
+                                                                        $directUrlArg .
+                                                                        '&action=fillForms&type=desktop"
+                                                                        target="_blank">';
+                                                                    echo '   <img src="css/images/mobile-fill-forms.svg"
+                                                                        alt="Open in editor for filling in forms 
+                                                                        for mobile devices" 
+                                                                        title="Open in editor for filling in forms 
+                                                                        for mobile devices" /></a>';
                                                                     echo ' </td>';
-                                                                    echo ' <td class="contentCells contentCells-icon"></td>';
-                                                                    echo ' <td class="contentCells contentCells-icon"></td>';
-                                                                    echo ' <td class="contentCells contentCells-icon"></td>';
-                                                                    echo ' <td class="contentCells contentCells-shift contentCells-icon firstContentCellShift">';
-                                                                    echo '  <a href="doceditor.php?fileID=' . urlencode($storeFile->name) . '&user=' . htmlentities($user) . $directUrlArg . '&action=fillForms&type=desktop" target="_blank">';
-                                                                    echo '   <img src="css/images/fill-forms.svg" alt="Open in editor for filling in forms" title="Open in editor for filling in forms" /></a>';
+                                                                    echo ' <td class="contentCells 
+                                                                        contentCells-icon"></td>';
+                                                                    echo ' <td class="contentCells 
+                                                                        contentCells-icon"></td>';
+                                                                    echo ' <td class="contentCells 
+                                                                        contentCells-icon"></td>';
+                                                                    echo ' <td class="contentCells 
+                                                                        contentCells-shift contentCells-icon 
+                                                                        firstContentCellShift">';
+                                                                    echo '  <a href="doceditor.php?fileID=' .
+                                                                        urlencode($storeFile->name) .
+                                                                        '&user=' .
+                                                                        htmlentities($user) .
+                                                                        $directUrlArg .
+                                                                        '&action=fillForms&type=desktop"
+                                                                        target="_blank">';
+                                                                    echo '   <img src="css/images/fill-forms.svg"
+                                                                        alt="Open in editor for filling in forms"
+                                                                        title="Open in editor for filling in forms"
+                                                                        /></a>';
                                                                     echo ' </td>';
                                                                 } else {
-                                                                    echo '<td class="contentCells contentCells-shift contentCells-icon contentCellsEmpty" colspan="6"></td>';
+                                                                    echo '<td class="contentCells 
+                                                                        contentCells-shift contentCells-icon 
+                                                                        contentCellsEmpty" colspan="6"></td>';
                                                                 }
-                                                                echo ' <td class="contentCells contentCells-icon firstContentCellViewers">';
-                                                                echo '  <a href="doceditor.php?fileID='.urlencode($storeFile->name).'&user='.htmlentities($user) . $directUrlArg . '&action=view&type=desktop" target="_blank">';
-                                                                echo '   <img src="css/images/desktop.svg" alt="Open in viewer for full size screens" title="Open in viewer for full size screens" /></a>';
+                                                                echo ' <td class="contentCells 
+                                                                        contentCells-icon firstContentCellViewers">';
+                                                                echo '  <a href="doceditor.php?fileID='.
+                                                                    urlencode($storeFile->name).
+                                                                    '&user='.htmlentities($user).
+                                                                    $directUrlArg.
+                                                                    '&action=view&type=desktop" target="_blank">';
+                                                                echo '   <img src="css/images/desktop.svg" 
+                                                                    alt="Open in viewer for full size screens" 
+                                                                    title="Open in viewer for full size screens" 
+                                                                    /></a>';
                                                                 echo ' </td>';
                                                                 echo ' <td class="contentCells contentCells-icon">';
-                                                                echo '  <a href="doceditor.php?fileID='.urlencode($storeFile->name).'&user='.htmlentities($user) . $directUrlArg . '&action=view&type=mobile" target="_blank">';
-                                                                echo '   <img src="css/images/mobile.svg" alt="Open in viewer for mobile devices" title="Open in viewer for mobile devices" /></a>';
+                                                                echo '  <a href="doceditor.php?fileID='.
+                                                                    urlencode($storeFile->name).
+                                                                    '&user='.htmlentities($user).
+                                                                    $directUrlArg.
+                                                                    '&action=view&type=mobile" target="_blank">';
+                                                                echo '   <img src="css/images/mobile.svg" 
+                                                                    alt="Open in viewer for mobile devices" 
+                                                                    title="Open in viewer for mobile devices" /></a>';
                                                                 echo ' </td>';
-                                                                echo ' <td class="contentCells contentCells-icon contentCells-shift">';
-                                                                echo '  <a href="doceditor.php?fileID='.urlencode($storeFile->name).'&user='.htmlentities($user) . $directUrlArg . '&action=embedded&type=embedded" target="_blank">';
-                                                                echo '   <img src="css/images/embeded.svg" alt="Open in embedded mode" title="Open in embedded mode" /></a>';
+                                                                echo ' <td class="contentCells 
+                                                                    contentCells-icon contentCells-shift">';
+                                                                echo '  <a href="doceditor.php?fileID='.
+                                                                    urlencode($storeFile->name).
+                                                                    '&user='.
+                                                                    htmlentities($user).
+                                                                    $directUrlArg.
+                                                                    '&action=embedded&type=embedded" target="_blank">';
+                                                                echo '   <img src="css/images/embeded.svg" 
+                                                                    alt="Open in embedded mode" 
+                                                                    title="Open in embedded mode" /></a>';
                                                                 echo ' </td>';
-                                                                echo ' <td class="contentCells contentCells-icon contentCells-shift downloadContentCellShift">';
-                                                                echo '  <a href="webeditor-ajax.php?type=download&fileName='.urlencode($storeFile->name).'">';
-                                                                echo '   <img class="icon-download" src="css/images/download.svg" alt="Download" title="Download" /></a>';
+                                                                echo ' <td class="contentCells 
+                                                                    contentCells-icon contentCells-shift 
+                                                                    downloadContentCellShift">';
+                                                                echo '  <a href="
+                                                                    webeditor-ajax.php?type=download&fileName='.
+                                                                    urlencode($storeFile->name).'">';
+                                                                echo '   <img class="icon-download" 
+                                                                    src="css/images/download.svg"
+                                                                    alt="Download" title="Download" /></a>';
                                                                 echo ' </td>';
-                                                                echo ' <td class="contentCells contentCells-icon contentCells-shift">';
-                                                                echo '  <a class="delete-file" data="'.$storeFile->name.'">';
-                                                                echo '   <img class="icon-delete" src="css/images/delete.svg" alt="Delete" title="Delete" /></a>';
+                                                                echo ' <td class="contentCells 
+                                                                    contentCells-icon contentCells-shift">';
+                                                                echo '  <a class="delete-file" data="'.
+                                                                    $storeFile->name.'">';
+                                                                echo '   <img class="icon-delete" 
+                                                                    src="css/images/delete.svg" 
+                                                                    alt="Delete" title="Delete" /></a>';
                                                                 echo ' </td>';
                                                                 echo '</tr>';
                                                             } ?>
@@ -260,8 +446,8 @@
                                                     </table>
                                                 </div>
                                             </div>
-                                    <?php
-                                        } ?>
+                                        <?php
+                                    } ?>
                                 </div>
                             </td>
                         </tr>
@@ -274,7 +460,8 @@
                     <span id="uploadFileName" class="uploadFileName"></span>
                     <div class="describeUpload">After these steps are completed, you can work with your document.</div>
                     <span id="step1" class="step">1. Loading the file.</span>
-                    <span class="step-descr">The loading speed depends on file size and additional elements it contains.</span>
+                    <span class="step-descr">The loading speed depends on file size
+                        and additional elements it contains.</span>
                     <br />
                     <span id="step2" class="step">2. Conversion.</span>
                     <span class="step-descr">The file is converted to OOXML so that you can edit it.</span>
@@ -294,7 +481,8 @@
                     <span class="step-descr">They are loaded only once, they will be cached on your computer.</span>
                     <input type="hidden" name="hiddenFileName" id="hiddenFileName" />
                     <br />
-                    <span class="progress-descr">Note the speed of all operations depends on your connection quality and server location.</span>
+                    <span class="progress-descr">Note the speed of all operations depends
+                        on your connection quality and server location.</span>
                     <br />
                     <div class="error-message">
                         <b>Upload error: </b><span></span>
@@ -302,7 +490,8 @@
                         Please select another file and try again.
                     </div>
                 </div>
-                <iframe id="embeddedView" src="" height="345px" width="432px" frameborder="0" scrolling="no" allowtransparency></iframe>
+                <iframe id="embeddedView" src="" height="345px" width="432px"
+                        frameborder="0" scrolling="no" allowtransparency></iframe>
                 <br />
                 <div class="buttonsMobile">
                     <?php if (($GLOBALS['MODE']) != "view") { ?>
@@ -314,7 +503,9 @@
                 </div>
             </div>
 
-            <span id="loadScripts" data-docs="<?php echo $GLOBALS['DOC_SERV_SITE_URL'].$GLOBALS['DOC_SERV_PRELOADER_URL'] ?>"></span>
+            <span id="loadScripts" data-docs="
+            <?php echo $GLOBALS['DOC_SERV_SITE_URL'].$GLOBALS['DOC_SERV_PRELOADER_URL'] ?>
+            "></span>
 
             <footer>
                 <div class="center">
@@ -322,7 +513,9 @@
                         <tbody>
                         <tr>
                             <td>
-                                <a href="http://api.onlyoffice.com/editors/howitworks" target="_blank">API Documentation</a>
+                                <a href="http://api.onlyoffice.com/editors/howitworks" target="_blank">
+                                    API Documentation
+                                </a>
                             </td>
                             <td>
                                 <a href="mailto:sales@onlyoffice.com">Submit your request</a>

web/documentserver-example/php/jwtmanager.php

@@ -1,6 +1,5 @@
 <?php
 /**
- *
  * (c) Copyright Ascensio System SIA 2023
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -14,33 +13,50 @@
  * 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.
- *
  */
 
-require_once( dirname(__FILE__) . '/lib/jwt/BeforeValidException.php' );
-require_once( dirname(__FILE__) . '/lib/jwt/ExpiredException.php' );
-require_once( dirname(__FILE__) . '/lib/jwt/SignatureInvalidException.php' );
-require_once( dirname(__FILE__) . '/lib/jwt/JWT.php' );
-require_once( dirname(__FILE__) . '/config.php' );
+require_once dirname(__FILE__) . '/lib/jwt/BeforeValidException.php';
+require_once dirname(__FILE__) . '/lib/jwt/ExpiredException.php';
+require_once dirname(__FILE__) . '/lib/jwt/SignatureInvalidException.php';
+require_once dirname(__FILE__) . '/lib/jwt/JWT.php';
+require_once dirname(__FILE__) . '/config.php';
 
-// check if a secret key to generate token exists or not
-function isJwtEnabled() {
+/**
+ * Check if a secret key to generate token exists or not.
+ *
+ * @return bool
+ */
+function isJwtEnabled()
+{
     return !empty($GLOBALS['DOC_SERV_JWT_SECRET']);
 }
 
-// encode a payload object into a token using a secret key
-function jwtEncode($payload) {
+/**
+ * Encode a payload object into a token using a secret key
+ *
+ * @param array $payload
+ *
+ * @return string
+ */
+function jwtEncode($payload)
+{
     return \Firebase\JWT\JWT::encode($payload, $GLOBALS["DOC_SERV_JWT_SECRET"]);
 }
 
-// decode a token into a payload object using a secret key
-function jwtDecode($token) {
+/**
+ * Decode a token into a payload object using a secret key
+ *
+ * @param string $token
+ *
+ * @return string
+ */
+function jwtDecode($token)
+{
     try {
-        $payload = \Firebase\JWT\JWT::decode($token, $GLOBALS["DOC_SERV_JWT_SECRET"], array("HS256"));
+        $payload = \Firebase\JWT\JWT::decode($token, $GLOBALS["DOC_SERV_JWT_SECRET"], ["HS256"]);
     } catch (\UnexpectedValueException $e) {
         $payload = "";
     }
 
     return $payload;
 }
-?>

web/documentserver-example/php/licenses/3rd-Party.license

@@ -21,5 +21,9 @@ License:        MIT
 License File:   jQuery.UI.license
 
 JWT           - JSON Web Token implementation (https://github.com/firebase/php-jwt/blob/master/LICENSE)
-License:        BSD
+License:        BSD-3-Clause
 License File:   jwt.license
+
+PHP_CodeSniffer - PHP_CodeSniffer is a set of two PHP scripts; the main phpcs script that tokenizes PHP, JavaScript and CSS files to detect violations of a defined coding standard, and a second phpcbf script to automatically correct coding standard violations. PHP_CodeSniffer is an essential development tool that ensures your code remains clean and consistent. (https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt)
+License:        BSD-3-Clause
+License File:   PHP_CodeSniffer.license

web/documentserver-example/php/licenses/PHP_CodeSniffer.license

@@ -0,0 +1,24 @@
+Copyright (c) 2012, Squiz Pty Ltd (ABN 77 084 670 600)
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * Neither the name of the copyright holder nor the
+      names of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

web/documentserver-example/php/ruleset.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<ruleset name="CustomRuleset">
+    <description>This standard changes the line length</description>
+
+
+    <rule ref="PSR1">
+        <exclude name="PSR1.Files.SideEffects" />
+    </rule>
+    <!-- Insert all sniff from PSR2 standard -->
+    <rule ref="PSR2"/>
+
+    <rule ref="Generic.Files.LineLength">
+        <properties>
+            <property name="lineLimit" value="120"/>
+            <property name="absoluteLineLimit" value="0"/>
+        </properties>
+     </rule>
+</ruleset>

web/documentserver-example/php/trackmanager.php

@@ -1,6 +1,5 @@
 <?php
 /**
- *
  * (c) Copyright Ascensio System SIA 2023
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -14,20 +13,23 @@
  * 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.
- *
  */
 
-require_once( dirname(__FILE__) . '/jwtmanager.php' );
-require_once( dirname(__FILE__) . '/common.php' );
-require_once( dirname(__FILE__) . '/config.php' );
+require_once dirname(__FILE__) . '/jwtmanager.php';
+require_once dirname(__FILE__) . '/common.php';
+require_once dirname(__FILE__) . '/config.php';
 
-
-// read request body
-function readBody() {
+/**
+ * Read request body
+ *
+ * @return int|array
+ */
+function readBody()
+{
     $result["error"] = 0;
 
     // get the body of the post request and check if it is correct
-    if (($body_stream = file_get_contents('php://input')) === FALSE) {
+    if (($body_stream = file_get_contents('php://input')) === false) {
         $result["error"] = "Bad Request";
         return $result;
     }
@@ -35,7 +37,7 @@ function readBody() {
     $data = json_decode($body_stream, false);
 
     // check if the response is correct
-    if ($data === NULL) {
+    if ($data === null) {
         $result["error"] = "Bad Response";
         return $result;
     }
@@ -54,7 +56,12 @@ function readBody() {
             $data = jwtDecode($data["token"]);  // decode it
             sendlog("   jwt in body", "webedior-ajax.log");
         } elseif (!empty(apache_request_headers()[$jwtHeader])) {  // if the Authorization header exists
-            $data = jwtDecode(substr(apache_request_headers()[$jwtHeader], strlen("Bearer ")));  // decode its part after Authorization prefix
+            $data = jwtDecode(
+                mb_substr(
+                    apache_request_headers()[$jwtHeader],
+                    mb_strlen("Bearer ")
+                )
+            );  // decode its part after Authorization prefix
             $inHeader = true;
             sendlog("   jwt in header", "webedior-ajax.log");
         } else {  // otherwise, an error occurs
@@ -69,63 +76,88 @@ function readBody() {
             return $result;
         }
 
-        if ($inHeader) $data = $data->payload;
+        if ($inHeader) {
+            $data = $data->payload;
+        }
     }
 
     return $data;
 }
 
-// file saving process
-function processSave($data, $fileName, $userAddress) {
+/**
+ * File saving process
+ *
+ * @param string $data
+ * @param string $fileName
+ * @param string $userAddress
+ *
+ * @return array
+ */
+function processSave($data, $fileName, $userAddress)
+{
     $downloadUri = $data->url;
     if ($downloadUri === null) {
         $result["error"] = 1;
         return $result;
     }
 
-    $curExt = strtolower('.' . pathinfo($fileName, PATHINFO_EXTENSION));  // get current file extension
-    $downloadExt = strtolower('.' . $data->filetype);  // get the extension of the downloaded file
+    $curExt = mb_strtolower('.' . pathinfo($fileName, PATHINFO_EXTENSION));  // get current file extension
+    $downloadExt = mb_strtolower('.' . $data->filetype);  // get the extension of the downloaded file
 
     $newFileName = $fileName;
 
     // convert downloaded file to the file with the current extension if these extensions aren't equal
     if ($downloadExt != $curExt) {
-        $key = GenerateRevisionId($downloadUri);
+        $key = generateRevisionId($downloadUri);
 
         try {
             sendlog("   Convert " . $downloadUri . " from " . $downloadExt . " to " . $curExt, "webedior-ajax.log");
             $convertedUri;  // convert file and give url to a new file
-            $percent = GetConvertedUri($downloadUri, $downloadExt, $curExt, $key, FALSE, $convertedUri);
+            $percent = getConvertedUri($downloadUri, $downloadExt, $curExt, $key, false, $convertedUri);
             if (!empty($convertedUri)) {
                 $downloadUri = $convertedUri;
             } else {
                 sendlog("   Convert after save convertedUri is empty", "webedior-ajax.log");
-                $baseNameWithoutExt = substr($fileName, 0, strlen($fileName) - strlen($curExt));
-                $newFileName = GetCorrectName($baseNameWithoutExt . $downloadExt, $userAddress);  // get the correct file name if it already exists
+                $baseNameWithoutExt = mb_substr($fileName, 0, mb_strlen($fileName) - mb_strlen($curExt));
+
+                // get the correct file name if it already exists
+                $newFileName = GetCorrectName($baseNameWithoutExt . $downloadExt, $userAddress);
             }
         } catch (Exception $e) {
             sendlog("   Convert after save ".$e->getMessage(), "webedior-ajax.log");
-            $baseNameWithoutExt = substr($fileName, 0, strlen($fileName) - strlen($curExt));
+            $baseNameWithoutExt = mb_substr($fileName, 0, mb_strlen($fileName) - mb_strlen($curExt));
             $newFileName = GetCorrectName($baseNameWithoutExt . $downloadExt, $userAddress);
         }
     }
 
     $saved = 1;
 
-    if (!(($new_data = file_get_contents($downloadUri, false,
-            stream_context_create(["http"=>["timeout"=>5]]))) === FALSE)) {
+    if (!(($new_data = file_get_contents(
+        $downloadUri,
+        false,
+        stream_context_create(["http" => ["timeout" => 5]])
+    )) === false)
+    ) {
         $storagePath = getStoragePath($newFileName, $userAddress);  // get the file path
         $histDir = getHistoryDir($storagePath);  // get the path to the history direction
         $verDir = getVersionDir($histDir, getFileVersion($histDir));  // get the path to the file version
 
         mkdir($verDir);  // if the path doesn't exist, create it
 
-        rename(getStoragePath($fileName, $userAddress), $verDir . DIRECTORY_SEPARATOR . "prev" . $curExt);  // get the path to the previous file version and rename the storage path with it
+        // get the path to the previous file version and rename the storage path with it
+        rename(getStoragePath($fileName, $userAddress), $verDir .
+            DIRECTORY_SEPARATOR . "prev" . $curExt);
         file_put_contents($storagePath, $new_data, LOCK_EX);  // save file to the storage directory
 
-        if ($changesData = file_get_contents($data->changesurl, false,
-            stream_context_create(["http"=>["timeout"=>5]]))) {
-            file_put_contents($verDir . DIRECTORY_SEPARATOR . "diff.zip", $changesData, LOCK_EX);  // save file changes to the diff.zip archive
+        if ($changesData = file_get_contents(
+            $data->changesurl,
+            false,
+            stream_context_create(["http" => ["timeout" => 5]])
+        )
+        ) {
+            // save file changes to the diff.zip archive
+            file_put_contents($verDir . DIRECTORY_SEPARATOR .
+                "diff.zip", $changesData, LOCK_EX);
         }
 
         $histData = empty($data->changeshistory) ? null : $data->changeshistory;
@@ -133,11 +165,16 @@ function processSave($data, $fileName, $userAddress) {
             $histData = json_encode($data->history, JSON_PRETTY_PRINT);
         }
         if (!empty($histData)) {
-            file_put_contents($verDir . DIRECTORY_SEPARATOR . "changes.json", $histData, LOCK_EX);  // write the history changes to the changes.json file
+            // write the history changes to the changes.json file
+            file_put_contents($verDir .
+                DIRECTORY_SEPARATOR . "changes.json", $histData, LOCK_EX);
         }
-        file_put_contents($verDir . DIRECTORY_SEPARATOR . "key.txt", $data->key, LOCK_EX);  // write the key value to the key.txt file
+        // write the key value to the key.txt file
+        file_put_contents($verDir .
+            DIRECTORY_SEPARATOR . "key.txt", $data->key, LOCK_EX);
 
-        $forcesavePath = getForcesavePath($newFileName, $userAddress, false);  // get the path to the forcesaved file version
+        // get the path to the forcesaved file version
+        $forcesavePath = getForcesavePath($newFileName, $userAddress, false);
         if ($forcesavePath != "") {  // if the forcesaved file version exists
             unlink($forcesavePath);  // remove it
         }
@@ -150,32 +187,41 @@ function processSave($data, $fileName, $userAddress) {
     return $result;
 }
 
-// file force saving process
-function processForceSave($data, $fileName, $userAddress) {
+/**
+ * File force saving process
+ *
+ * @param string $data
+ * @param string $fileName
+ * @param string $userAddress
+ *
+ * @return array
+ */
+function processForceSave($data, $fileName, $userAddress)
+{
     $downloadUri = $data->url;
     if ($downloadUri === null) {
         $result["error"] = 1;
         return $result;
     }
 
-    $curExt = strtolower('.' . pathinfo($fileName, PATHINFO_EXTENSION));  // get current file extension
-    $downloadExt = strtolower('.' . $data->filetype);  // get the extension of the downloaded file
+    $curExt = mb_strtolower('.' . pathinfo($fileName, PATHINFO_EXTENSION));  // get current file extension
+    $downloadExt = mb_strtolower('.' . $data->filetype);  // get the extension of the downloaded file
 
     $newFileName = false;
 
     // convert downloaded file to the file with the current extension if these extensions aren't equal
     if ($downloadExt != $curExt) {
-        $key = GenerateRevisionId($downloadUri);
+        $key = generateRevisionId($downloadUri);
 
         try {
             sendlog("   Convert " . $downloadUri . " from " . $downloadExt . " to " . $curExt, "webedior-ajax.log");
             $convertedUri;  // convert file and give url to a new file
-            $percent = GetConvertedUri($downloadUri, $downloadExt, $curExt, $key, FALSE, $convertedUri);
+            $percent = getConvertedUri($downloadUri, $downloadExt, $curExt, $key, false, $convertedUri);
             if (!empty($convertedUri)) {
                 $downloadUri = $convertedUri;
             } else {
                 sendlog("   Convert after save convertedUri is empty", "webedior-ajax.log");
-                $baseNameWithoutExt = substr($fileName, 0, strlen($fileName) - strlen($curExt));
+                $baseNameWithoutExt = mb_substr($fileName, 0, mb_strlen($fileName) - mb_strlen($curExt));
                 $newFileName = true;
             }
         } catch (Exception $e) {
@@ -186,20 +232,25 @@ function processForceSave($data, $fileName, $userAddress) {
 
     $saved = 1;
 
-    if (!(($new_data = file_get_contents($downloadUri, false,
-            stream_context_create(["http"=>["timeout"=>5]]))) === FALSE)) {
-        $baseNameWithoutExt = substr($fileName, 0, strlen($fileName) - strlen($curExt));
+    if (!(($new_data = file_get_contents(
+        $downloadUri,
+        false,
+        stream_context_create(["http" => ["timeout" => 5]])
+    )) === false)
+    ) {
+        $baseNameWithoutExt = mb_substr($fileName, 0, mb_strlen($fileName) - mb_strlen($curExt));
         $isSubmitForm = $data->forcesavetype == 3;  // SubmitForm
 
         if ($isSubmitForm) {
-            if ($newFileName){
-                $fileName = GetCorrectName($baseNameWithoutExt . "-form" . $downloadExt, $userAddress);  // get the correct file name if it already exists
+            if ($newFileName) {
+                $fileName = GetCorrectName($baseNameWithoutExt .
+                    "-form" . $downloadExt, $userAddress);  // get the correct file name if it already exists
             } else {
                 $fileName = GetCorrectName($baseNameWithoutExt . "-form" . $curExt, $userAddress);
             }
             $forcesavePath = getStoragePath($fileName, $userAddress);
         } else {
-            if ($newFileName){
+            if ($newFileName) {
                 $fileName = GetCorrectName($baseNameWithoutExt . $downloadExt, $userAddress);
             }
             // create forcesave path if it doesn't exist
@@ -224,45 +275,55 @@ function processForceSave($data, $fileName, $userAddress) {
     return $result;
 }
 
-// create a command request
-function commandRequest($method, $key, $meta = null){
+/**
+ * Create a command request
+ *
+ * @param string $method
+ * @param string $key
+ * @param string $meta
+ *
+ * @return false|string
+ */
+function commandRequest($method, $key, $meta = null)
+{
     $documentCommandUrl = $GLOBALS['DOC_SERV_SITE_URL'].$GLOBALS['DOC_SERV_COMMAND_URL'];
 
     $arr = [
         "c" => $method,
-        "key" => $key
+        "key" => $key,
     ];
 
-    if($meta)
+    if ($meta) {
         $arr["meta"] = $meta;
+    }
 
     $headerToken = "";
     $jwtHeader = $GLOBALS['DOC_SERV_JWT_HEADER'] == "" ? "Authorization" : $GLOBALS['DOC_SERV_JWT_HEADER'];
 
     if (isJwtEnabled()) {  // check if a secret key to generate token exists or not
-        $headerToken = jwtEncode([ "payload" => $arr ]);  // encode a payload object into a header token
+        $headerToken = jwtEncode(["payload" => $arr]);  // encode a payload object into a header token
         $arr["token"] = jwtEncode($arr);  // encode a payload object into a body token
     }
 
     $data = json_encode($arr);
 
-    $opts = array('http' => array(
-        'method'  => 'POST',
-        'header'=> "Content-type: application/json\r\n" .
-            (empty($headerToken) ? "" : $jwtHeader.": Bearer $headerToken\r\n"),  // add a header Authorization with a header token and Authorization prefix in it
-        'content' => $data
-    ));
+    $opts = ['http' => [
+        'method' => 'POST',
+        'header' => "Content-type: application/json\r\n" .
+            // add a header Authorization with a header token and Authorization prefix in it
+            (empty($headerToken) ? "" : $jwtHeader.
+                ": Bearer $headerToken\r\n"),
+        'content' => $data,
+    ]];
 
-    if (substr($documentCommandUrl, 0, strlen("https")) === "https") {
-        if($GLOBALS['DOC_SERV_VERIFY_PEER_OFF'] === TRUE) {
-            $opts['ssl'] = array( 'verify_peer' => FALSE, 'verify_peer_name' => FALSE );
+    if (mb_substr($documentCommandUrl, 0, mb_strlen("https")) === "https") {
+        if ($GLOBALS['DOC_SERV_VERIFY_PEER_OFF'] === true) {
+            $opts['ssl'] = ['verify_peer' => false, 'verify_peer_name' => false];
         }
     }
 
     $context = stream_context_create($opts);
-    $response_data = file_get_contents($documentCommandUrl, FALSE, $context);
+    $response_data = file_get_contents($documentCommandUrl, false, $context);
 
     return $response_data;
 }
-
-?>

web/documentserver-example/php/users.php

@@ -1,6 +1,8 @@
 <?php
+
+namespace PhpExample;
+
 /**
- *
  * (c) Copyright Ascensio System SIA 2023
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -14,12 +16,40 @@
  * 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.
- *
  */
 
-class User {
-    function __construct($id, $name, $email, $group, $reviewGroups, $commentGroups, $userInfoGroups, $favorite, $deniedPermissions, $descriptions, $templates)
-    {
+final class User
+{
+    /**
+     * Constructor
+     *
+     * @param string $id
+     * @param string $name
+     * @param string $email
+     * @param string $group
+     * @param array|null $reviewGroups
+     * @param array $commentGroups
+     * @param array|null $userInfoGroups
+     * @param bool|null $favorite
+     * @param array $deniedPermissions
+     * @param array $descriptions
+     * @param bool $templates
+     *
+     * @return void
+     */
+    public function __construct(
+        $id,
+        $name,
+        $email,
+        $group,
+        $reviewGroups,
+        $commentGroups,
+        $userInfoGroups,
+        $favorite,
+        $deniedPermissions,
+        $descriptions,
+        $templates
+    ) {
         $this->id = $id;
         $this->name = $name;
         $this->email = $email;
@@ -41,16 +71,17 @@ $descr_user_1 = [
     "Can perform all actions with comments",
     "The file favorite state is undefined",
     "Can create files from templates using data from the editor",
-    "Can see the information about all users"
+    "Can see the information about all users",
 ];
 
 $descr_user_2 = [
     "Belongs to Group2",
     "Can review only his own changes or changes made by users with no group",
-    "Can view comments, edit his own comments and comments left by users with no group. Can remove his own comments only",
+    "Can view comments, edit his own comments and comments left by users with no group. 
+        Can remove his own comments only",
     "This file is marked as favorite",
     "Can create new files from the editor",
-    "Can see the information about users from Group2 and users who don’t belong to any group"
+    "Can see the information about users from Group2 and users who don’t belong to any group",
 ];
 
 $descr_user_3 = [
@@ -62,7 +93,7 @@ $descr_user_3 = [
     "Can’t download the file",
     "Can’t print the file",
     "Can create new files from the editor",
-    "Can see the information about Group2 users"
+    "Can see the information about Group2 users",
 ];
 
 $descr_user_0 = [
@@ -80,40 +111,90 @@ $descr_user_0 = [
 ];
 
 $users = [
-    new User("uid-1", "John Smith", "smith@example.com",
-            "", null, [], null,
-            null, [], $descr_user_1, true),
-    new User("uid-2", "Mark Pottato", "pottato@example.com",
-            "group-2", ["group-2", ""], [
-                "view" => "",
-                "edit" => ["group-2", ""],
-                "remove" => ["group-2"]
-            ],
-            ["group-2", ""],
-            true, [], $descr_user_2, false),
-    new User("uid-3", "Hamish Mitchell", "mitchell@example.com",
-            "group-3", ["group-2"], [
-                "view" => ["group-3", "group-2"],
-                "edit" => ["group-2"],
-                "remove" => []
-            ],
-            ["group-2"],
-            false, ["copy", "download", "print"], $descr_user_3, false),
-    new User("uid-0", null, null,
-            "", null, [], [],
-            null, [], $descr_user_0, false)
+    new User(
+        "uid-1",
+        "John Smith",
+        "smith@example.com",
+        "",
+        null,
+        [],
+        null,
+        null,
+        [],
+        $descr_user_1,
+        true
+    ),
+    new User(
+        "uid-2",
+        "Mark Pottato",
+        "pottato@example.com",
+        "group-2",
+        ["group-2", ""],
+        [
+            "view" => "",
+            "edit" => ["group-2", ""],
+            "remove" => ["group-2"],
+        ],
+        ["group-2", ""],
+        true,
+        [],
+        $descr_user_2,
+        false
+    ),
+    new User(
+        "uid-3",
+        "Hamish Mitchell",
+        "mitchell@example.com",
+        "group-3",
+        ["group-2"],
+        [
+            "view" => ["group-3", "group-2"],
+            "edit" => ["group-2"],
+            "remove" => [],
+        ],
+        ["group-2"],
+        false,
+        ["copy", "download", "print"],
+        $descr_user_3,
+        false
+    ),
+    new User(
+        "uid-0",
+        null,
+        null,
+        "",
+        null,
+        [],
+        [],
+        null,
+        [],
+        $descr_user_0,
+        false
+    ),
 ];
 
-// get a list of all the users
-function getAllUsers() {
+/**
+ * Get a list of all the users
+ *
+ * @return array
+ */
+function getAllUsers()
+{
     global $users;
     return $users;
 }
 
-// get a user by id specified
-function getUser($id) {
+/**
+ * Get a user by id specified
+ *
+ * @param string $id
+ *
+ * @return array
+ */
+function getUser($id)
+{
     global $users;
-    foreach ($users as $user){
+    foreach ($users as $user) {
         if ($user->id == $id) {
             sendlog("User ". $user->id, "common.log");
             return $user;
@@ -122,18 +203,24 @@ function getUser($id) {
     return $users[0];
 }
 
-// get a list of users with their names and emails for mentions
-function getUsersForMentions($id) {
+/**
+ * Get a list of users with their names and emails for mentions
+ *
+ * @param string $id
+ *
+ * @return array
+ */
+function getUsersForMentions($id)
+{
     global $users;
     $usersData = [];
     foreach ($users as $user) {
         if ($user->id != $id && $user->name != null && $user->email != null) {
-            array_push($usersData,[
+            $usersData[] = [
                 "name" => $user->name,
-                "email" => $user->email
-            ]);
+                "email" => $user->email,
+            ];
         }
     }
     return $usersData;
 }
-?>

web/documentserver-example/php/webeditor-ajax.php

@@ -1,6 +1,8 @@
 <?php
+
+namespace PhpExample;
+
 /**
- *
  * (c) Copyright Ascensio System SIA 2023
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -14,34 +16,33 @@
  * 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' );
-require_once( dirname(__FILE__) . '/trackmanager.php' );
-require_once( dirname(__FILE__) . '/users.php' );
+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';
+require_once dirname(__FILE__) . '/trackmanager.php';
+require_once dirname(__FILE__) . '/users.php';
 
 // define tracker status
-$_trackerStatus = array(
+$_trackerStatus = [
     0 => 'NotFound',
     1 => 'Editing',
     2 => 'MustSave',
     3 => 'Corrupted',
     4 => 'Closed',
     6 => 'MustForceSave',
-    7 => 'CorruptedForceSave'
-);
+    7 => 'CorruptedForceSave',
+];
 
 // ignore self-signed certificate
-if($GLOBALS['DOC_SERV_VERIFY_PEER_OFF'] === TRUE) {
-    stream_context_set_default( [
+if ($GLOBALS['DOC_SERV_VERIFY_PEER_OFF'] === true) {
+    stream_context_set_default([
         'ssl' => [
             'verify_peer' => false,
             'verify_peer_name' => false,
@@ -52,12 +53,12 @@ if($GLOBALS['DOC_SERV_VERIFY_PEER_OFF'] === TRUE) {
 // check if type value exists
 if (isset($_GET["type"]) && !empty($_GET["type"])) {
     $response_array;
-    @header( 'Content-Type: application/json; charset==utf-8');
-    @header( 'X-Robots-Tag: noindex' );
-    @header( 'X-Content-Type-Options: nosniff' );
+    @header('Content-Type: application/json; charset==utf-8');
+    @header('X-Robots-Tag: noindex');
+    @header('X-Content-Type-Options: nosniff');
 
     // set headers that prevent caching in all the browsers
-    nocache_headers();
+    nocacheHeaders();
 
     // write the request result to the log file
     sendlog(serialize($_GET), "webedior-ajax.log");
@@ -65,49 +66,49 @@ if (isset($_GET["type"]) && !empty($_GET["type"])) {
     $type = $_GET["type"];
 
     // switch case for type value
-    switch($type) {
+    switch ($type) {
         case "upload":
             $response_array = upload();
             $response_array['status'] = isset($response_array['error']) ? 'error' : 'success';
-            die (json_encode($response_array));
+            die(json_encode($response_array));
         case "download":
             $response_array = download();
             $response_array['status'] = 'success';
-            die (json_encode($response_array));
+            die(json_encode($response_array));
         case "history":
             $response_array = historyDownload();
             $response_array['status'] = 'success';
-            die (json_encode($response_array));
+            die(json_encode($response_array));
         case "convert":
             $response_array = convert();
             $response_array['status'] = 'success';
-            die (json_encode($response_array));
+            die(json_encode($response_array));
         case "track":
             $response_array = track();
             $response_array['status'] = 'success';
-            die (json_encode($response_array));
+            die(json_encode($response_array));
         case "delete":
             $response_array = delete();
             $response_array['status'] = 'success';
-            die (json_encode($response_array));
+            die(json_encode($response_array));
         case "assets":
             $response_array = assets();
             $response_array['status'] = 'success';
-            die (json_encode($response_array));
+            die(json_encode($response_array));
         case "csv":
             $response_array = csv();
             $response_array['status'] = 'success';
-            die (json_encode($response_array));
+            die(json_encode($response_array));
         case "files":
             $response_array = files();
-            die (json_encode($response_array));
+            die(json_encode($response_array));
         case "saveas":
             $response_array = saveas();
             $response_array['status'] = 'success';
-            die (json_encode($response_array));
+            die(json_encode($response_array));
         case "rename":
             $response_array = renamefile();
-            die (json_encode($response_array));
+            die(json_encode($response_array));
         default:
             $response_array['status'] = 'error';
             $response_array['error'] = '404 Method not found';
@@ -115,46 +116,62 @@ if (isset($_GET["type"]) && !empty($_GET["type"])) {
     }
 }
 
-// save copy as...
-function saveas() {
-   try {
-       $result;
-       $post = json_decode(file_get_contents('php://input'), true);
-       $fileurl = $post["url"];
-       $title = $post["title"];
-       $extension = strtolower(pathinfo($title, PATHINFO_EXTENSION));
-       $allexts = array_merge($GLOBALS['DOC_SERV_CONVERT'], $GLOBALS['DOC_SERV_EDITED'], $GLOBALS['DOC_SERV_VIEWD'], $GLOBALS['DOC_SERV_FILLFORMS']);
-       $filename = GetCorrectName($title);
+/**
+ * Save copy as...
+ *
+ * @return array
+ */
+function saveas()
+{
+    try {
+        $result;
+        $post = json_decode(file_get_contents('php://input'), true);
+        $fileurl = $post["url"];
+        $title = $post["title"];
+        $extension = mb_strtolower(pathinfo($title, PATHINFO_EXTENSION));
+        $allexts = array_merge(
+            $GLOBALS['DOC_SERV_CONVERT'],
+            $GLOBALS['DOC_SERV_EDITED'],
+            $GLOBALS['DOC_SERV_VIEWD'],
+            $GLOBALS['DOC_SERV_FILLFORMS']
+        );
+        $filename = GetCorrectName($title);
 
-       if (!in_array("." . $extension, $allexts)) {
-           $result["error"] = "File type is not supported";
-           return $result;
-       }
-       $headers = get_headers($fileurl, 1);
-       $content_length = $headers["Content-Length"];
-       $data = file_get_contents(str_replace(" ","%20",$fileurl));
+        if (!in_array("." . $extension, $allexts)) {
+            $result["error"] = "File type is not supported";
+            return $result;
+        }
+        $headers = get_headers($fileurl, 1);
+        $content_length = $headers["Content-Length"];
+        $data = file_get_contents(str_replace(" ", "%20", $fileurl));
 
-       if ($data === false || $content_length <= 0 || $content_length > $GLOBALS['FILE_SIZE_MAX']) {
-           $result["error"] = "File size is incorrect";
-           return $result;
-       }
+        if ($data === false || $content_length <= 0 || $content_length > $GLOBALS['FILE_SIZE_MAX']) {
+            $result["error"] = "File size is incorrect";
+            return $result;
+        }
 
-       file_put_contents(getStoragePath($filename), $data, LOCK_EX);  // write data to the new file
-       $user = getUser($_GET["user"]);
-       createMeta($filename, $user->id, $user->name);  // and create meta data for this file
+        file_put_contents(getStoragePath($filename), $data, LOCK_EX);  // write data to the new file
+        $user = getUser($_GET["user"]);
+        createMeta($filename, $user->id, $user->name);  // and create meta data for this file
 
-       $result["file"] = $filename;
-       return $result;
-   } catch (Exception $e) {
-       sendlog("SaveAs: ".$e->getMessage(), "webedior-ajax.log");
-       $result["error"] = "error: " . 1 . "message:" . $e->getMessage();
-       return $result;
-   }
+        $result["file"] = $filename;
+        return $result;
+    } catch (Exception $e) {
+        sendlog("SaveAs: ".$e->getMessage(), "webedior-ajax.log");
+        $result["error"] = "error: " . 1 . "message:" . $e->getMessage();
+        return $result;
+    }
 }
 
-// uploading a file
-function upload() {
-    $result; $filename;
+/**
+ * Uploading a file
+ *
+ * @return array
+ */
+function upload()
+{
+    $result;
+    $filename;
 
     if ($_FILES['files']['error'] > 0) {
         $result["error"] = 'Error ' . json_encode($_FILES['files']['error']);
@@ -171,10 +188,9 @@ function upload() {
     }
 
     // check if the file was uploaded using HTTP POST
-    if (is_uploaded_file($tmp))
-    {
+    if (is_uploaded_file($tmp)) {
         $filesize = $_FILES['files']['size'];  // get the file size
-        $ext = strtolower('.' . pathinfo($_FILES['files']['name'], PATHINFO_EXTENSION));  // get file extension
+        $ext = mb_strtolower('.' . pathinfo($_FILES['files']['name'], PATHINFO_EXTENSION));  // get file extension
 
         // check if the file size is correct (it should be less than the max file size, but greater than 0)
         if ($filesize <= 0 || $filesize > $GLOBALS['FILE_SIZE_MAX']) {
@@ -188,14 +204,14 @@ function upload() {
             return $result;
         }
 
-        $filename = GetCorrectName($_FILES['files']['name']);  // get the correct file name with an index if the file with such a name already exists
-        if (!move_uploaded_file($tmp,  getStoragePath($filename)) ) {
+        // get the correct file name with an index if the file with such a name already exists
+        $filename = GetCorrectName($_FILES['files']['name']);
+        if (!move_uploaded_file($tmp, getStoragePath($filename))) {
             $result["error"] = 'Upload failed';  // file upload error
             return $result;
         }
         $user = getUser($_GET["user"]);
         createMeta($filename, $user->id, $user->name);  // create file meta data
-
     } else {
         $result["error"] = 'Upload failed';
         return $result;
@@ -206,17 +222,22 @@ function upload() {
     return $result;
 }
 
-// tracking file changes
-function track() {
+/**
+ * Tracking file changes
+ *
+ * @return array|int
+ */
+function track()
+{
     sendlog("Track START", "webedior-ajax.log");
-    sendlog("   _GET params: " . serialize( $_GET ), "webedior-ajax.log");
+    sendlog("   _GET params: " . serialize($_GET), "webedior-ajax.log");
 
     $result["error"] = 0;
 
     // get the body of the post request and check if it is correct
     $data = readBody();
 
-    if (!empty($data->error)){
+    if (!empty($data->error)) {
         return $data;
     }
 
@@ -231,8 +252,9 @@ function track() {
         case "Editing":  // status == 1
             if ($data->actions && $data->actions[0]->type == 0) {   // finished edit
                 $user = $data->actions[0]->userid;  // the user who finished editing
-                if (array_search($user, $data->users) === FALSE) {
-                    $commandRequest = commandRequest("forcesave", $data->key);  // create a command request with the forcasave method
+                if (array_search($user, $data->users) === false) {
+                    // create a command request with the forcasave method
+                    $commandRequest = commandRequest("forcesave", $data->key);
                     sendlog("   CommandRequest forcesave: " . serialize($commandRequest), "webedior-ajax.log");
                 }
             }
@@ -251,21 +273,25 @@ function track() {
     return $result;
 }
 
-// converting a file
-function convert() {
+/**
+ * Converting a file
+ *
+ * @return array
+ */
+function convert()
+{
     $post = json_decode(file_get_contents('php://input'), true);
     $fileName = basename($post["filename"]);
     $filePass = $post["filePass"];
     $lang = $_COOKIE["ulang"];
-    $extension = strtolower(pathinfo($fileName, PATHINFO_EXTENSION));
-    $internalExtension = trim(getInternalExtension($fileName),'.');
+    $extension = mb_strtolower(pathinfo($fileName, PATHINFO_EXTENSION));
+    $internalExtension = trim(getInternalExtension($fileName), '.');
 
     // check if the file with such an extension can be converted
     if (in_array("." . $extension, $GLOBALS['DOC_SERV_CONVERT']) && $internalExtension != "") {
-
         $fileUri = $post["fileUri"];
-        if ($fileUri == NULL || $fileUri == "") {
-            $fileUri =  $fileUri=serverPath(TRUE) . '/'
+        if ($fileUri == null || $fileUri == "") {
+            $fileUri = $fileUri = serverPath(true) . '/'
                 . "webeditor-ajax.php"
                 . "?type=download"
                 . "&fileName=" . urlencode($fileName)
@@ -279,15 +305,22 @@ function convert() {
 
         try {
             // convert file and get the percentage of the conversion completion
-            $percent = GetConvertedUri($fileUri, $extension, $internalExtension, $key, TRUE, $newFileUri, $filePass, $lang);
-        }
-        catch (Exception $e) {
+            $percent = getConvertedUri(
+                $fileUri,
+                $extension,
+                $internalExtension,
+                $key,
+                true,
+                $newFileUri,
+                $filePass,
+                $lang
+            );
+        } catch (Exception $e) {
             $result["error"] = "error: " . $e->getMessage();
             return $result;
         }
 
-        if ($percent != 100)
-        {
+        if ($percent != 100) {
             $result["step"] = $percent;
             $result["filename"] = $fileName;
             $result["fileUri"] = $fileUri;
@@ -295,19 +328,18 @@ function convert() {
         }
 
         // get file name without extension
-        $baseNameWithoutExt = substr($fileName, 0, strlen($fileName) - strlen($extension) - 1);
+        $baseNameWithoutExt = mb_substr($fileName, 0, mb_strlen($fileName) - mb_strlen($extension) - 1);
 
         // get the correct file name with an index if the file with such a name already exists
         $newFileName = GetCorrectName($baseNameWithoutExt . "." . $internalExtension);
 
-        if (($data = file_get_contents(str_replace(" ","%20",$newFileUri))) === FALSE) {
+        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);  // write data to the new file
-            $user = getUser($_GET["user"]);
-            createMeta($newFileName, $user->id, $user->name);  // and create meta data for this file
         }
+        file_put_contents(getStoragePath($newFileName), $data, LOCK_EX);  // write data to the new file
+        $user = getUser($_GET["user"]);
+        createMeta($newFileName, $user->id, $user->name);  // and create meta data for this file
 
         // delete the original file and its history
         $stPath = getStoragePath($fileName);
@@ -321,8 +353,13 @@ function convert() {
     return $result;
 }
 
-// removing a file
-function delete() {
+/**
+ * Removing a file
+ *
+ * @return array|void
+ */
+function delete()
+{
     try {
         $fileName = basename($_GET["fileName"]);
 
@@ -330,47 +367,67 @@ function delete() {
 
         unlink($filePath);  // delete a file
         delTree(getHistoryDir($filePath));  // delete all the elements from the history directory
-    }
-    catch (Exception $e) {
+    } catch (Exception $e) {
         sendlog("Deletion ".$e->getMessage(), "webedior-ajax.log");
         $result["error"] = "error: " . $e->getMessage();
         return $result;
     }
 }
 
-// get file information
-function files() {
+/**
+ * Get file information
+ *
+ * @return array
+ */
+function files()
+{
     try {
-        @header( "Content-Type", "application/json" );
+        @header("Content-Type", "application/json");
 
         $fileId = $_GET["fileId"];
         $result = getFileInfo($fileId);
 
         return $result;
-    }
-    catch (Exception $e) {
+    } catch (Exception $e) {
         sendlog("Files ".$e->getMessage(), "webedior-ajax.log");
         $result["error"] = "error: " . $e->getMessage();
         return $result;
     }
 }
 
-// download assets
-function assets() {
+/**
+ * Download assets
+ *
+ * @return void
+ */
+function assets()
+{
     $fileName = basename($_GET["name"]);
-    $filePath = dirname(__FILE__) . DIRECTORY_SEPARATOR . "assets" . DIRECTORY_SEPARATOR . "sample" . DIRECTORY_SEPARATOR . $fileName;
+    $filePath = dirname(__FILE__) .
+        DIRECTORY_SEPARATOR . "assets" . DIRECTORY_SEPARATOR . "sample" . DIRECTORY_SEPARATOR . $fileName;
     downloadFile($filePath);
 }
 
-// download a csv file
-function csv() {
-    $fileName =  "csv.csv";
-    $filePath = dirname(__FILE__) . DIRECTORY_SEPARATOR . "assets" . DIRECTORY_SEPARATOR . "sample" . DIRECTORY_SEPARATOR . $fileName;
+/**
+ * Download a csv file
+ *
+ * @return void
+ */
+function csv()
+{
+    $fileName = "csv.csv";
+    $filePath = dirname(__FILE__) .
+        DIRECTORY_SEPARATOR . "assets" . DIRECTORY_SEPARATOR . "sample" . DIRECTORY_SEPARATOR . $fileName;
     downloadFile($filePath);
 }
 
-// download a file from history
-function historyDownload() {
+/**
+ * Download a file from history
+ *
+ * @return array|void
+ */
+function historyDownload()
+{
     try {
         $fileName = basename($_GET["fileName"]);  // get the file name
         $userAddress = $_GET["userAddress"];
@@ -381,7 +438,7 @@ function historyDownload() {
         if (isJwtEnabled()) {
             $jwtHeader = $GLOBALS['DOC_SERV_JWT_HEADER'] == "" ? "Authorization" : $GLOBALS['DOC_SERV_JWT_HEADER'];
             if (!empty(apache_request_headers()[$jwtHeader])) {
-                $token = jwtDecode(substr(apache_request_headers()[$jwtHeader], strlen("Bearer ")));
+                $token = jwtDecode(mb_substr(apache_request_headers()[$jwtHeader], mb_strlen("Bearer ")));
                 if (empty($token)) {
                     http_response_code(403);
                     die("Invalid JWT signature");
@@ -394,7 +451,8 @@ function historyDownload() {
 
         $histDir = getHistoryDir(getStoragePath($fileName, $userAddress));
 
-        $filePath = getVersionDir($histDir, $ver) . DIRECTORY_SEPARATOR . $file;;
+        $filePath = getVersionDir($histDir, $ver) . DIRECTORY_SEPARATOR . $file;
+        ;
 
         downloadFile($filePath);  // download this file
     } catch (Exception $e) {
@@ -404,21 +462,27 @@ function historyDownload() {
     }
 }
 
-// download a file
-function download() {
+/**
+ * Download a file
+ *
+ * @return array|void
+ */
+function download()
+{
     try {
-        $fileName = realpath($GLOBALS['STORAGE_PATH']) === $GLOBALS['STORAGE_PATH'] ? $_GET["fileName"] : basename($_GET["fileName"]);  // get the file name
+        $fileName = realpath($GLOBALS['STORAGE_PATH'])
+        === $GLOBALS['STORAGE_PATH'] ? $_GET["fileName"] : basename($_GET["fileName"]);  // get the file name
         $userAddress = $_GET["userAddress"];
         $isEmbedded = $_GET["&dmode"];
 
         if (isJwtEnabled() && $isEmbedded == null && $userAddress) {
             $jwtHeader = $GLOBALS['DOC_SERV_JWT_HEADER'] == "" ? "Authorization" : $GLOBALS['DOC_SERV_JWT_HEADER'];
             if (!empty(apache_request_headers()[$jwtHeader])) {
-                $token = jwtDecode(substr(apache_request_headers()[$jwtHeader], strlen("Bearer ")));
-            }
-            if (empty($token)) {
-                http_response_code(403);
-                die("Invalid JWT signature");
+                $token = jwtDecode(mb_substr(apache_request_headers()[$jwtHeader], mb_strlen("Bearer ")));
+                if (empty($token)) {
+                    http_response_code(403);
+                    die("Invalid JWT signature");
+                }
             }
         }
         $filePath = getForcesavePath($fileName, $userAddress, false);  // get the path to the forcesaved file version
@@ -433,8 +497,15 @@ function download() {
     }
 }
 
-// download the specified file
-function downloadFile($filePath) {
+/**
+ * Download the specified file
+ *
+ * @param string $filePath
+ *
+ * @return void
+ */
+function downloadFile($filePath)
+{
     if (file_exists($filePath)) {
         if (ob_get_level()) {
             ob_end_clean();
@@ -447,7 +518,7 @@ function downloadFile($filePath) {
 
         if ($fd = fopen($filePath, 'rb')) {
             while (!feof($fd)) {
-                print fread($fd, 1024);
+                echo fread($fd, 1024);
             }
             fclose($fd);
         }
@@ -455,25 +526,39 @@ function downloadFile($filePath) {
     }
 }
 
-// delete all the elements from the directory
-function delTree($dir) {
-    if (!file_exists($dir) || !is_dir($dir)) return;
+/**
+ * Delete all the elements from the directory
+ *
+ * @param string $dir
+ *
+ * @return void|bool
+ */
+function delTree($dir)
+{
+    if (!file_exists($dir) || !is_dir($dir)) {
+        return;
+    }
 
-    $files = array_diff(scandir($dir), array('.','..'));
+    $files = array_diff(scandir($dir), ['.', '..']);
     foreach ($files as $file) {
         (is_dir("$dir/$file")) ? delTree("$dir/$file") : unlink("$dir/$file");
     }
     return rmdir($dir);
 }
 
-// rename...
-function renamefile() {
+/**
+ * Rename file
+ *
+ * @return array
+ */
+function renamefile()
+{
     $post = json_decode(file_get_contents('php://input'), true);
     $newfilename = $post["newfilename"];
 
-    $curExt = strtolower(array_pop(explode('.', $newfilename)));
+    $curExt = mb_strtolower(array_pop(explode('.', $newfilename)));
     $origExt = $post["ext"];
-    if($origExt !== $curExt){
+    if ($origExt !== $curExt) {
         $newfilename .= '.' . $origExt;
     }
 
@@ -483,5 +568,5 @@ function renamefile() {
     $commandRequest = commandRequest("meta", $dockey, $meta);  // create a command request with the forcasave method
     sendlog("   CommandRequest rename: " . serialize($commandRequest), "webedior-ajax.log");
 
-    return array("result" => $commandRequest);
-}
+    return ["result" => $commandRequest];
+}