functions.php

<?php

function displayFilename($filename, $length) {
    // *************************************************
    // function displayFilename
    // Parameters:
    //   $filename: string with filename
    //   $length: maximum length to be displayed
    // Return value: processed filename
    //
    // Shortens the given filename if it is longer than $lenght
    // Will cut the the middle of the name and put ".." instead there 
    // *************************************************  
  $filename = basename($filename);
	if(($length < strlen($filename)) && $length) {
		$leftPart = substr($filename, 0, intval($length/2-1));
		$rightPart = substr($filename, intval(strlen($filename) - ($length/2 -1)));
		return $leftPart."..".$rightPart;
	} else {
		return $filename;
	}
}

function getMaximumUploadSize () {
    // *************************************************
    // function getMaximumUploadSize
    // Parameters: none
    // Return value: maximum allowed upload size in human readable format
    //
    // Checks some values in the PHP-configuration and calculates the max.
    // possible upload size
    // *************************************************  
	return size_hum_read(min(sizeCpuReadable(ini_get('post_max_size')),sizeCpuReadable(ini_get('upload_max_filesize'))));
}

function writeWarning($warnText) {
    // *************************************************
    // function writeWarning
    // Parameters:
    //   $text: text to be displayed
    // Return value: none
    //
    // Displays a small DIV with the correct class for skinning
    // *************************************************  
	echo "<div class=\"warning\">\n";
	echo "  <p>$warnText</p>\n";
	echo "</div>\n";
}
function writeOngoing($text) {    // *************************************************
    // function writeOngoing
    // Parameters:
    //   $text: text to be displayed
    // Return value: none
    //
    // Displays a small DIV with the correct class for skinning
    // Only displayed if enabled in the configuration
    // *************************************************  
  
	global $conf;
	if($conf['showOngoing']) {
		echo "<div class=\"ongoing\">\n";
		echo "  <p>$text</p>\n";
		echo "</div>\n";
	}
}
function writeSuccess($text) {
    // *************************************************
    // function writeSuccess
    // Parameters:
    //   $text: text to be displayed
    // Return value: none
    //
    // Displays a small DIV with the correct class for skinning
    // *************************************************    
	echo "<div class=\"success\">\n";
	echo "  <p>$text</p>\n";
	echo "</div>\n";
}

function renameFile($oldName, $newName) {
  return rename("files/".$oldName, "files/".$newName);
}

function checkFolderPermissions($folderPath) {
    // checks if the names folder has a .htpasswd-file with content
  if(!file_exists($folderPath."/.htpasswd")) {
    // no limitiation as no .htaccess available
    return false;
  }
  if(file_get_contents($folderPath."/.htpasswd") == "") {
    // no content
    return false;
  }
  return true;
}

function sendMail($receipient, $fileName, $conf, $lang) {
    // *************************************************
    // function sendMail
    // Parameters:
    //   $receipient: e-mail adress of receipient
    //   $fileName: name of file to send the link of
    //   $conf: the general configuration of SiFiEx
    //   $lang: to be used language
    // Return value: TRUE if mail was send, otherwise FALSE
    //
    // Sends an e-mail to the named e-mail-adress to notify
    // someone of a file on the SiFiEx-server
    // *************************************************  
	$header = "";
	$header .= "From: ".$conf['mailSenderName']." <".$conf['mailSenderEmail'].">\r\n";
	ini_set("sendmail_from",$conf['mailSenderEmail']);
	$body = "";
	$body .= $lang['mailStart']." ";
	$pathFull = explode("/", $_SERVER['PHP_SELF']);
	array_pop($pathFull);
	$pathToScript=implode("/", $pathFull);
	$body .= detectSSL()."://".$_SERVER['HTTP_HOST'].$pathToScript.$fileName."\n\n";
	if ($conf['mailInfoPassword']) {
		$body .= $lang['mailPassword']."\n\n";
	}
	$body .= "\n\n".$lang['mailEnd'];
	if (!mail($receipient, $lang['mailSubject'], $body, $header)) {
	  showNotification("Mail send error", $config['appName'], $lang['mailError'], $iconPath);
		writeWarning($lang['mailError']);
		return FALSE;
	} else {
	  showNotification("Mail has been sent", $config['appName'], $lang['mailSuccess'].$receipient, $iconPath);
		writeSuccess($lang['mailSuccess'].$receipient);
		return TRUE;
	}

	if ($conf['debug']) {echo "<pre>".$header."\n\n".$body."</pre>\n"; };
}

function size_hum_read($size){
    // *************************************************
    // function size_hum_read
    // Parameters:
    //   $size: value in digits
    // Return value: $size in human readable format
    //
    // Makes huge values mor user friendly (2048 becomes 2 KByte e.g.)
    // *************************************************  
	$i=0;
	$iec = array("Byte", "KByte", "MByte", "GByte", "TByte", "PByte", "EByte", "ZByte", "YByte");
	while (($size/1024)>1) {
		$size=$size/1024;
		$i++;
	}
	return substr($size,0,strpos($size,'.')+4)." ".$iec[$i];
}

function sizeCpuReadable($size) {
    // *************************************************
    // function sizeCpuReadable
    // Parameters:
    //   $size: value in human readable form as in php.ini
    // Return value: value in digits
    //
    // Translates the common shortcuts like 20M for 20 Megabytes
    // into a format we can calculate with
    // *************************************************  
	if (preg_match('/K$/', $size)) {
		return $size * 1024;
	} elseif (preg_match('/M$/', $size)) {
		return $size * 1024 * 1024;
	} elseif (preg_match('/G$/', $size)) {
		return $size * 1024 * 1024 * 1024;
	} else {
		return $size;
	}
}

function filePermissions($file, $octal = false) {
    // *************************************************
    // function filePermissions
    // Parameters:
    //   $file: name / path to file
    //   $octal: if or if not return value should be in octcal format
    // Return value: permissions of the file (e.g 0755)
    //
    // Returns current permissions of a file
    // *************************************************  
	if(!file_exists($file)) return false;
	$perms = fileperms($file);
	$cut = $octal ? 2 : 3;
	return substr(decoct($perms), $cut);
}

function detectSSL(){
    // *************************************************
    // function detectSSL
    // Parameters: none
    // Return value: http or https
    //
    // Uses different ways to figure out if the page has been
    // called using http or https
    // *************************************************  
	if($_SERVER["https"] == "on"){
		return "https";
	} elseif ($_SERVER["https"] == 1){
		return "https";
	} elseif ($_SERVER['SERVER_PORT'] == 443) {
		return "https";
	} else {
		return "http";
	}
}

function showResult ($value, $goodText, $badText) {
    // *************************************************
    // function showResult
    // Parameters:
    //   $value: value to be checked if success or not (should be TRUE or FALSE)
    //   $goodText: Text to be displayed upon success
    //   $badText: Text to be displayed on negative result
    // Return value: $value
    //
    // Displayes a CSS-skinable text depending on $value
    // *************************************************  
	if ($value) {
		echo "<span class=\"OK\">".$goodText."</span>";
	} else {
		echo "<span class=\"NotOK\">".$badText."</span>";
	}
	return $value;
}


if (!function_exists('ftp_chmod')) {
  function ftp_chmod($ftp_stream, $mode, $filename) {
    // *************************************************
    // function ftp_chmod
    // Parameters:
    //   $ftp_stream: link to already opened FTP-connection
    //   $mode: which permissions to be set (e.g. 0755)
    //   $filename: file to change the permissions for
    // Return value: $value
    //
    // Changes permissions of a file using FTP
    // This function is part of PHP5 but not included in PHP4
    // so this is a backport to enable it in PHP4
    // *************************************************
    return @ftp_site($ftp_stream, sprintf('CHMOD %o %s', $mode, $filename));
  }
}

function generateLanguagesDropdown() {
  echo "<form method=\"post\" action=\"index.php\" id=\"languageSelector\">\n";
  echo "  <select name=\"language\" size=\"1\">";
  $languages=array();
  $handle=opendir('languageFiles/');
  while ($language = readdir ($handle)) {
    if ($language != "." && $language != ".." && $language != ".svn" && $theme != ".git") {
      array_push($languages, $language);
    }
  }
  foreach ($languages as $key=>$value) {
    echo "    <option >$value</option>\n";
  }
  echo "  </select>\n";
  echo "  <input type=\"submit\" name=\"changeLanguage\" value=\"&gt;\" />\n";
  echo "</form>\n";
}

function generateThemesDropdown() {
  echo "<form method=\"post\" action=\"index.php\" id=\"themeSelector\">\n";
  echo "  <select name=\"theme\" size=\"1\">";
  $themes=array();
  $handle=opendir('themes/');
  while ($theme = readdir ($handle)) {
    if ($theme != "." && $theme != ".." && $theme != ".svn" && $theme != ".git") {
      array_push($themes, $theme);
    }
  }
  foreach ($themes as $key=>$value) {
    echo "    <option >$value</option>\n";
  }
  echo "  </select>\n";
  echo "  <input type=\"submit\" name=\"changeTheme\" value=\"&gt;\" />\n";
  echo "</form>\n";
}

function showNotification($class, $title, $text, $icon) {
  global $config;
  if($config['notificationsEnableSnarl']) {
  ?>
    <script type="text/javascript">
      myClass = new Snarl.NotificationType('<?php echo $class; ?>', true);
      Snarl.register("SiFiEx", [myClass]);
      Snarl.notify(myClass, '<?php echo $title; ?>', '<?php echo $text; ?>', Snarl.Priority.VeryLow, false);
    </script>
  <?php
  }

  if($config['notificationsEnableFluid']) {
  ?>
    <script type="text/javascript">
      try {
        window.fluid.showGrowlNotification({
        title: "<?php echo $title; ?>",
        description: "<?php echo $text; ?>",
        priority: 1,
        sticky: false,
        identifier: "<?php echo $class; ?>",
        icon: "<?php echo $icon; ?>"
        })
     } catch (e) {}
    </script>
  <?php
  }
}

function writeFile($filetobechanged, $data) {
  $filehandle = fopen($filetobechanged, 'w');
  fwrite($filehandle , stripslashes($data));
  fclose($filehandle);
}

function makeHtfiles(){
  if(isset($HTTP_POST_VARS['submit'])){
    echo "1";
    if ( isset($_POST['user']) && isset($_POST['password1'])){
      if( $_POST['password1'] == $_POST['password2'] ){
        $user = $_POST['user'];
        $password1 = $_POST['password1'];
        $htpasswd_text = "\n".$user .":".crypt($password1,CRYPT_STD_DES);

        writeFile('/.htpasswd', $htpasswd_text);

        $htaccess = "IndexIgnore .htaccess , .htpasswd , .. , . \n";
        $htaccess .= 'AuthName "Admin Access"';
        $htaccess .= "\n"."AuthType Basic \n";
        $htaccess .= "AuthUserFile ".$config['currentDir'].".htpasswd \n";
        $htaccess .= "Require valid-user";

        writeFile('/.htaccess', $htaccess);
      } else {
        echo "<p><hr></p>";
        echo "<b>Passwords do not match</b>";
        echo "<p><hr></p>";
      }
    }
  } else {
    echo '<form method="post" action="index.php"><table>';
    echo '<tr><td>Username:</td><td><INPUT TYPE="TEXT" NAME="user"></td></tr>';
    echo '<tr><td>Password:</td><td><INPUT TYPE="PASSWORD" NAME="password1"></td></tr>';
    echo '<tr><td>Password again:</td><td><INPUT TYPE="PASSWORD" NAME="password2"></td></tr>';
    echo '<tr><td><center><INPUT type=submit name="submit" VALUE="Set User / Pass">';
    echo '</center></td></tr>';
    echo '</table><form>';
  }
}

function checkAdminPassword() {
  global $HTTP_POST_VARS;
  global $_POST;
  global $config;
  if(!file_exists("admin/.htaccess") || !file_exists("admin/.htpasswd")) {
    echo "Set the Administrator Username and Password";
    if(isset($HTTP_POST_VARS['submit'])){
      if ( isset($_POST['user']) && isset($_POST['password1'])){
        if( $_POST['password1'] == $_POST['password2'] ){
          $user = $_POST['user'];
          $password1 = $_POST['password1'];
          $htpasswd_text = "\n".$user .":".crypt($password1,CRYPT_STD_DES);
          writeFile('admin/.htpasswd', $htpasswd_text);
          $htaccess = "IndexIgnore .htaccess , .htpasswd , .. , . \n";
          $htaccess .= 'AuthName "Admin Access"';
          $htaccess .= "\n"."AuthType Basic \n";
          $htaccess .= "AuthUserFile ".$config['currentDir']."/admin/.htpasswd \n";
          $htaccess .= "Require valid-user";

          writeFile('admin/.htaccess', $htaccess);
        } else {
          echo "<hr />";
          echo "<b>Passwords do not match</b>";
          echo "<hr />";
        }
      }
    } else {
      echo '<form method="post" action="index.php"><table>';
      echo '<tr><td>Username:</td><td><INPUT TYPE="TEXT" NAME="user"></td></tr>';
      echo '<tr><td>Password:</td><td><INPUT TYPE="PASSWORD" NAME="password1"></td></tr>';
      echo '<tr><td>Password again:</td><td><INPUT TYPE="PASSWORD" NAME="password2"></td></tr>';
      // echo '<tr><td>Use this login also on the main page:</td><td><input type="PASSWORD" NAME="password2"></td></tr>';
      echo '<tr><td><center><INPUT type=submit name="submit" VALUE="Set User / Pass">';
      echo '</center></td></tr>';
      echo '</table><form>';
      die();
    }

  }

}

function checkConfig() {
  if(!file_exists("config.php")) {
    require("setup/setup.php");
    if ($HTTP_POST_VARS['doFtpChanges']) {
      $tryUsingFtp = new setup;
      $tryUsingFtp->writeHtmlHeader();
      $tryUsingFtp->writeUsingFtp($HTTP_POST_VARS);
    } else {
      $initialSetup = new setup;
      $initialSetup->writeHtmlHeader();
      $initialSetup->writeAnalysis();
    }
  }
}

function checkMainFolderPermissions() {
  global $config;
  global $HTTP_POST_VARS;
  if(!is_writable($config['fileDir'])) {
    require("setup/setup.php");
    if ($HTTP_POST_VARS['doFtpChanges']) {
      $tryUsingFtp = new setup;
      $tryUsingFtp->writeHtmlHeader();
      $tryUsingFtp->writeUsingFtp($HTTP_POST_VARS);
    } else {
      $initialSetup = new setup;
      $initialSetup->writeHtmlHeader();
      $initialSetup->writeAnalysis();
    }
  }
}

function initialize() {
  global $HTTP_POST_VARS;
  global $_SESSION;
  global $config;
  if ($HTTP_POST_VARS['changeLanguage']) {
    $_SESSION['language'] = $HTTP_POST_VARS['language'];
  }
  if ($HTTP_POST_VARS['changeTheme']) {
    $_SESSION['theme'] = $HTTP_POST_VARS['theme'];
  }
  if ($_SESSION['language']) {
    $config['language'] =$_SESSION['language'];
  }
  if ($_SESSION['theme']) {
    $config['theme'] =$_SESSION['theme'];
  }
}