<?php
//  _     ___ __  __            ____       _ _
// | |   |_ _|  \/  |          / ___| __ _| | | ___ _ __ _   _
// | |    | || |\/| |  _____  | |  _ / _` | | |/ _ \ '__| | | |
// | |___ | || |  | | |_____| | |_| | (_| | | |  __/ |  | |_| |
// |_____|___|_|  |_|          \____|\__,_|_|_|\___|_|   \__, |
//                                                       |___/
//
// The LIM Gallery - Less Is More lightweight PHP Photogallery Program
// Copyright (C) 2005 LIMG-Kickass-Development Team
// 
// Free for all users, but leave this text in the header. 
// 
// CVS Version: 
// $Id: inc_global.php,v 1.6.2.1 2006/03/09 12:43:13 synox Exp $
//
// Description: All global functions are defined in this file.

  
  function setSessionDefaults() {
	global $def_table_width, $def_table_columns, $def_table_rows;
	global $def_table_numpics, $def_pic_width, $def_pic_quali;
	global $def_thumb_quali, $def_style, $def_thumbOri;

    //Set Default variables (from ../gconfig.php)
    $_SESSION['table_width']    = $def_table_width;
    $_SESSION['table_columns']  = $def_table_columns;
    $_SESSION['table_rows']     = $def_table_rows;
    $_SESSION['table_numpics']  = $def_table_numpics;
    $_SESSION['pic_width']      = $def_pic_width;
    $_SESSION['pic_quali']      = $def_pic_quali;
    $_SESSION['thumb_quali']    = $def_thumb_quali;
    $_SESSION['style']          = $def_style;
    $_SESSION['thumb_oriSize']  = $def_thumbOri;
    $_SESSION['grayscale']      = 0;
  }
 
  function setSessionCookies(){
    $gconfPath = "gconfig.php";
    $isIndex = substr_count($_SERVER['PHP_SELF'],"index.php");
    if($isIndex == 0) //if not index...
      $gconfPath = "../" . $gconfPath;
    require_once($gconfPath); //require the file with global defaults
    if($isIndex == 1)
      global $cookie_name;

    if($_COOKIE[$cookie_name]){ //check is cookie available
      //uncode the "session-string" from cookie and "rebuild" session
      $_SESSION = string_to_array($_COOKIE[$cookie_name]); 
    }else{ //set defaulst form gconfig.php
      setSessionDefaults();
    }
  }

  // Converts a string created by array_to_string() back into an array. (source php.net/array -> example)
  function string_to_array($string) {
    $retval = array();
    $string = urldecode($string);
    $tmp_array = explode('||', $string);
    $null_value = urlencode(base64_encode("^^^"));
    foreach ($tmp_array as $tmp_val) {
      list($index, $value) = explode('|', $tmp_val);
      $decoded_index = base64_decode(urldecode($index));
      if($value != $null_value)
        $retval[$decoded_index] = base64_decode(urldecode($value));
      else
        $retval[$decoded_index] = NULL;
      }
    return $retval;
  }
  
  
  /**
   * Parses the config files in the dirs and returns a hash-array 
   * with config-settings:
   * FolderName, Title, Comment, Date and "New" label duration from 
   * Text file 'config.txt'
   *
   * @param String $dirs directories where config will be searched
   * @param String $place
   * @return unknown
   */
  function parseConfig($dirs, $place) {  
    
    $allAlbumData = array(); 
    		
    foreach($dirs as $currentAlbDir){ //store each dir in currentAlbDir
    	
    
      $configPath = $place.$currentAlbDir."/aconf.txt";
      
      $albumSettings = array(); 

      if (file_exists($configPath)){
		//store the content from 'config.txt' in the string $configContent
        $configContent = trim(file_get_contents($configPath)); 
        
        // first try if there are multiple lines, then try with ... seperator
        $splitOptions = array( "\n","..."); 
        foreach ($splitOptions as $seperator ) {
        	$parts = explode($seperator,$configContent);        	
        	if ( count ( $parts) >= 2) {
        		$albumSettings = array_merge( $albumSettings, $parts); 
        		break; 
        	}
        }
      }

      
      // if there wasn't foudn a good configuration (maybe the file is empty)
      if ( count ( $albumSettings) == 0) {
      	// use Directory Name instead 
      	$date = date ( "d. F Y",  filemtime($place.$currentAlbDir)); 
      	$name = str_replace(array(".", "_"), " ", $currentAlbDir);
      	$albumSettings[] = $name;
      	$albumSettings[] = $name;
      	$albumSettings[] = $date;
      	$albumSettings[] = 5;
      }
      
      // add album name at first position of config array 
      array_unshift($albumSettings, $currentAlbDir); 
      
      $allAlbumData[$currentAlbDir] = $albumSettings;
    }
    return $allAlbumData;   
  }

  /**
   * Returns all files of a directory
   *
   * @param String $subDir
   * @param String $noSubDir
   * @return Array file list
   */
  function getDirContent($subDir,$noSubDir){
    if($noSubDir != 1)
      $subDir = "../".$subDir;
      
    $openSubDir = opendir("$subDir");
    $myPics = array();
    while($curFile=readdir($openSubDir)){
      $chkImage = @getimagesize($subDir."/".$curFile);
      if($chkImage[2]==2) //2=JPG
        array_push($myPics, $curFile);
    }
    closedir($openSubDir);
    array_multisort($myPics, SORT_ASC);
    return $myPics;
  }
  
function getAlbumDirs($subDir = "../"){

	$excludeDirectories = array( "app", "thumbs", "CVS", "comments"); 
	$myDirs = array();
	
	$openSubDir = opendir($subDir);
	while($curItem=readdir($openSubDir)){
		if ( in_array( $curItem , $excludeDirectories ) )
			continue; 
	
		$curItemFullPath = $subDir."/".$curItem;
		if(is_dir($curItemFullPath) 
			//&& file_exists($curItemFullPath."/aconf.txt") 
			&& $curItem != "." && $curItem != "..")
		array_push($myDirs, $curItem);
	}
	closedir($openSubDir);
	array_multisort($myDirs, SORT_DESC);
	return $myDirs;
}

  function getAlbums(){
    return getAlbumDirs("..");
  }
  
  function getPicNr($albumName, $picName){
    $albPics = getDirContent($albumName,2);
    $picNr = 0;
    for($i=0;$i < count($albPics);$i++){
      if($albPics[$i]==$picName){
        $picNr = $i;
	break;
      }
    }
    return $picNr;
  }

  function isLandscape($albumname, $pic, $subPath){
    $picSize = @getimagesize($subPath.$albumname."/".$pic);
    if($picSize[0] < $picSize[1]){
      return 2; //landscape=false
    }else{
      return 1; //landscape=true
    }
  }
  
  function formatCommentText($Name, $Comment){
      $replace = array (";" => "" , "'" => "" , "(" => "" , ")" => "");
  
      $Name =   strtr($Name, $replace);
      $Comment = strtr($Comment, $replace);
  
     	$Name = trim(strip_tags($Name));
    	$Comment = trim(strip_tags($Comment));
      
      return formatCommentText($Name, $Comment);
  }

  function switch2bw($from){
    $se_bw = $_SESSION[grayscale];
    if($se_bw == 1 or $se_bw == 2){
      $_SESSION[grayscale] = 0;
      $_SESSION[thumb_oriSize] = 1;
    }else{
      $_SESSION[grayscale] = 2;
      $_SESSION[thumb_oriSize] = 0;
    }
    header("Location: ".$_SERVER['HTTP_REFERER']);
  }
  
?>