Utils.php in N1ED - Visual editor as CKEditor plugin with Bootstrap support 7

Namespace

EdSDK\FileUploaderServer\lib\file

File

vendor/edsdk/file-uploader-server-php/src/lib/file/Utils.php

<?php

/**
 * File Uploader Server package
 * Developer: N1ED
 * Website: https://n1ed.com/
 * License: GNU General Public License Version 3 or later
 **/
namespace EdSDK\FileUploaderServer\lib\file;

class Utils {
  public static function getNameWithoutExt($filename) {
    $ext = Utils::getExt($filename);
    if ($ext == null) {
      return $filename;
    }
    return substr($filename, 0, strlen($filename) - strlen($ext) - 1);
  }
  public static function getExt($name) {
    $i = strrpos($name, '.');
    if ($i !== false) {
      return substr($name, $i + 1);
    }
    return null;
  }
  public static function getFreeFileName($dir, $defaultName, $alwaysWithIndex) {
    $i = $alwaysWithIndex ? 0 : -1;
    do {
      $i++;
      if ($i == 0) {
        $name = $defaultName;
      }
      else {
        $name = Utils::getNameWithoutExt($defaultName) . "_" . $i . (Utils::getExt($defaultName) != null ? "." . Utils::getExt($defaultName) : "");
      }
      $filePath = $dir . $name;
      $ok = !file_exists($filePath);
    } while (!$ok);
    return $name;
  }
  const PROHIBITED_SYMBOLS = "/\\?%*:|\"<>";
  public static function fixFileName($name) {
    $newName = "";
    for ($i = 0; $i < strlen($name); $i++) {
      $ch = substr($name, $i, 1);
      if (strpos(Utils::PROHIBITED_SYMBOLS, $ch) !== FALSE) {
        $ch = "_";
      }
      $newName = $newName . $ch;
    }
    return $newName;
  }
  public static function isFileNameSyntaxOk($name) {
    if (strlen($name) == 0 || $name == "." || strpos($name, "..") > -1) {
      return false;
    }
    for ($i = 0; $i < strlen(Utils::PROHIBITED_SYMBOLS); $i++) {
      if (strpos($name, substr(Utils::PROHIBITED_SYMBOLS, $i, 1)) !== false) {
        return false;
      }
    }
    if (strlen($name) > 260) {
      return false;
    }

    /*
             * TODO: fix this and uncomment
             * On Windows + IIS + PHP produces:
             * Warning:  preg_match(): Unknown modifier '\' in <b>...\vendor\edsdk\file-uploader-server-php\src\lib\file\Utils.php on line 83
             *
             * if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
                // https://stackoverflow.com/questions/6730009/validate-a-file-name-on-windows
                // https://msdn.microsoft.com/en-us/library/aa365247(v=vs.85).aspx#file_and_directory_names
                $pattern =
                    "/" .
                    "^" .
                    "(?!" .
                    "  (?:" .
                    "    CON|PRN|AUX|NUL|" .
                    "    COM[1-9]|LPT[1-9]" .
                    "  )" .
                    "  (?:\\.[^.]*)?" .
                    "  $" .
                    ")" .
                    "[^<>:\"/\\\\|?*\\x00-\\x1F]*" .
                    "[^<>:\"/\\\\|?*\\x00-\\x1F\\ .]" .
                    "$/ui";
                if (!preg_match($pattern, $name))
                    return false;
            }*/
    return true;
  }
  public static function isImage($name) {
    $exts = [
      "gif",
      "jpg",
      "jpeg",
      "png",
    ];
    $ext = Utils::getExt($name);
    for ($i = 0; $i < count($exts); $i++) {
      if ($exts[$i] === strtolower($ext)) {
        return true;
      }
    }
    return false;
  }

}

Classes

Name	Description
Utils