<?php
/**
 * Image Manager configuration file.
 * @author $Author: gustafn $
 * @version $Id: config.inc.php,v 1.11 2010/05/23 11:58:33 gustafn Exp $
 * @package ImageManager
 *
 * @todo change all these config values to defines()
 */

// REVISION HISTORY:
//
// 2005-03-20 Yermo Lamers (www.formvista.com):
//	. unified backend.
// . created a set of defaults that make sense for bundling with Xinha.

// -------------------------------------------------------------------------

/**
* Default backend URL
*
* URL to use for unified backend.
*
* The ?__plugin=ImageManager& is required. 
*/

$IMConfig['backend_url'] = "backend.php?__plugin=ImageManager&";

/**
* Backend Installation Directory
*
* location of backend install; these are used to link to css and js
* assets because we may have the front end installed in a different
* directory than the backend. (i.e. nothing assumes that the frontend
* and the backend are in the same directory)
*/

$IMConfig['base_dir'] = getcwd();
$IMConfig['base_url'] = '';

// ------------------------------------------------------------

/**
* Path to directory containing images.
*
* File system path to the directory you want to manage the images
* for multiple user systems, set it dynamically.
*
* NOTE: This directory requires write access by PHP. That is, 
* PHP must be able to create files in this directory.
* Able to create directories is nice, but not necessary.
*
* CHANGE THIS: for out-of-the-box demo purposes we're setting this to ./demo_images
* which has some graphics in it.
*/

// $IMConfig['images_dir'] = "/some/path/to/images/directory;

$IMConfig['images_dir'] = "demo_images";

// -------------------------------------------------------------------------

/**
* URL of directory containing images.
*
* The URL to the above path, the web browser needs to be able to see it.
* It can be protected via .htaccess on apache or directory permissions on IIS,
* check you web server documentation for futher information on directory protection
* If this directory needs to be publicly accessiable, remove scripting capabilities
* for this directory (i.e. disable PHP, Perl, CGI). We only want to store assets
* in this directory and its subdirectories.
*
* CHANGE THIS: You need to change this to match the url where you have Xinha
* installed. If the images show up blank chances are this is not set correctly.
*/

// $IMConfig['images_url'] = "/url/to/above";

// try to figure out the URL of the sample images directory. For your installation
// you will probably want to keep images in another directory.

$IMConfig['images_url'] = str_replace( "backend.php", "", $_SERVER["PHP_SELF"] ) . "demo_images";

// -------------------------------------------------------------------------

/**
* PHP Safe Mode?
*
* Possible values: true, false
*
* TRUE - If PHP on the web server is in safe mode, set this to true.
* SAFE MODE restrictions: directory creation will not be possible,
* only the GD library can be used, other libraries require
* Safe Mode to be off.
*
* FALSE - Set to false if PHP on the web server is not in safe mode.
*/

$IMConfig['safe_mode'] = false;

// -------------------------------------------------------------------------

/**
* Image Library to use.
*
* Possible values: 'GD', 'IM', or 'NetPBM'
*
* The image manipulation library to use, either GD or ImageMagick or NetPBM.
* If you have safe mode ON, or don't have the binaries to other packages, 
* your choice is 'GD' only. Other packages require Safe Mode to be off.
*
* DEFAULT: GD is probably the most likely to be available. 
*/

$IMConfig['IMAGE_CLASS'] = 'GD';


// -------------------------------------------------------------------------

/**
* NetPBM or IM binary path.
*
* After defining which library to use, if it is NetPBM or IM, you need to
* specify where the binary for the selected library are. And of course
* your server and PHP must be able to execute them (i.e. safe mode is OFF).
* GD does not require the following definition.
*/

$IMConfig['IMAGE_TRANSFORM_LIB_PATH'] ='/usr/bin/';

// For windows, something like
// C:/"Program Files"/ImageMagick-5.5.7-Q16/

// -------------------------------------------------------------------------
//                OPTIONAL SETTINGS 
// -------------------------------------------------------------------------

/**
* Thumbnail prefix
*
* The prefix for thumbnail files, something like .thumb will do. The
* thumbnails files will be named as "prefix_imagefile.ext", that is,
*  prefix + orginal filename.
*/

$IMConfig['thumbnail_prefix'] = '.';

// -------------------------------------------------------------------------

/**
* Thumbnail Directory
*
* Thumbnail can also be stored in a directory, this directory
* will be created by PHP. If PHP is in safe mode, this parameter
*  is ignored, you can not create directories. 
*
*  If you do not want to store thumbnails in a directory, set this
*  to false or empty string '';
*/

$IMConfig['thumbnail_dir'] = '.thumbs';

// -------------------------------------------------------------------------

/**
 * Resize files, or not.  If the dimensions for an image are changed
 * this will control if the image is actually resized.  
 *
 * Usually you want this true, unless you are very disk space concious.
 */
 
$IMConfig['resize_files'] = true;

// -------------------------------------------------------------------------

/**
* Resized prefix
*
* The prefix for resized files, something like .resized will do.  The
* resized files will be named <prefix>_<width>x<height>_<original>
* resized files are created when one changes the dimensions of an image
* in the image manager selection dialog - the image is scaled when the
* user clicks the ok button.
*/

$IMConfig['resized_prefix'] = '.resized';

// -------------------------------------------------------------------------

/**
* Resized Directory
*
* Resized images may also be stored in a directory, except in safe mode.
*/

$IMConfig['resized_dir'] = '.resized';

/**
 * Full options
 *
 * Determines whether the user is given options for padding, 
 * background/padding colour, margin, border and border colour. 
 */

$IMConfig['show_full_options'] = true;
 
// -------------------------------------------------------------------------

/**
* Allow New Directories
*
*
* Possible values: true, false
*
* TRUE -  Allow the user to create new sub-directories in the
*        $IMConfig['base_dir'].
*
* FALSE - No directory creation.
*
* NOTE: If $IMConfig['safe_mode'] = true, this parameter
*     is ignored, you can not create directories
*
* DEFAULT: for demo purposes we turn this off.
*/

$IMConfig['allow_new_dir'] = true;

// -------------------------------------------------------------------------

/**
* Allow Uploads
*
*  Possible values: true, false
*
*  TRUE - Allow the user to upload files.
*
*  FALSE - No uploading allowed.
*
* DEFAULT: for demo purposes we turn this off.
*/

$IMConfig['allow_upload'] = false;

// -------------------------------------------------------------------------

/**
* Allow Delete
*
*  Possible values: true, false
*
*  TRUE - Allow the user to delete files/dirs
*
*  FALSE - No deleting allowed.
* 
*/

$IMConfig['allow_delete'] = true;

// -------------------------------------------------------------------------

/**
* Allow Edit
*
*  Possible values: true, false
*
*  TRUE - Allow the user to edit files
*
*  FALSE - No editing allowed.
* 
*/

$IMConfig['allow_edit'] = true;


// -------------------------------------------------------------------------

/**
* Validate Images
*
* Possible values: true, false
*
* TRUE - If set to true, uploaded files will be validated based on the 
*        function getImageSize, if we can get the image dimensions then 
*        I guess this should be a valid image. Otherwise the file will be rejected.
*
* FALSE - All uploaded files will be processed.
*
* NOTE: If uploading is not allowed, this parameter is ignored.
*/

$IMConfig['validate_images'] = true;

$IMConfig['allowed_image_extensions'] = array("jpg","gif","png","jpeg");

// -------------------------------------------------------------------------

/**
* Default Thumnail.
*
* The default thumbnail if the thumbnails can not be created, either
* due to error or bad image file.
*/

$IMConfig['default_thumbnail'] = 'img/default.gif';

// -------------------------------------------------------------------------

/**
*  Thumbnail dimensions.
*/

$IMConfig['thumbnail_width'] = 96;
$IMConfig['thumbnail_height'] = 96;

// -------------------------------------------------------------------------

/**
* Editor Temporary File Prefix.
*
* Image Editor temporary filename prefix.
*/

$IMConfig['tmp_prefix'] = '.editor_';


$IMConfig['ViewMode'] = 'thumbs';

// -------------------------------------------------------------------------

/** Margin Types 
 *  If your HTML will be used in an email, then using CSS type "margin"
 *  is not so reliable and you should set UseHSpaceVSpace to be true
 *  to go back to the old fashioned hspace="" and vspace="" attributes on
 *  images.
 */
$IMConfig['UseHSpaceVSpace'] = false;

// -------------------------------------------------------------------------

/**
 * ImageManager/Picker can provide selection interfaces for more than just 
 * images on the server ("Pictures").
 *
 *  Local - the classical ImageManager for images stored on this server.
 *
 *  YouTube  - provides selection (but not upload etc) of videos on YouTube
 *    see smart-image.js for how to make the videos work as videos instead of
 *    static images.
 *
 *  Flickr   - provides selection (but not upload etc) of public images on Flickr
 *    Set 
 *       $IMConfig['Flickr'] = array('Key' => 'yourkeyhere');
 *    to turn on Flickr support.
 * 
 *    To get a key: http://www.flickr.com/services/api/keys/
 *
 *    WARNING: Flickr restricts commercial use of the API.  If your site is in any way even 
 *     remotely commercial you need to ask for a commercial key from flickr.
 *
 *    ADDITIONAL WARNING: Flickr requires that you provide a link back to them, preferably
 *     on the image itself (linking to the image) - you can use smart-image.js to do
 *     something like this. 
 *
 *    ADDITIONAL ADDITIONAL WARNING: It's up to you to comply with the image's license!! 
 */
 
$IMConfig['Local'] = TRUE;
$IMConfig['YouTube']  = FALSE;
$IMConfig['Flickr']   = FALSE;

// These are some configurable defaults for Flickr, to override
//  $IMConfig['Flickr'] = array('Whatever' => 'You Want');
$FlickrDefaults = array
(
  // This is the URL as flickr provides it for the licence which you wish 
  // to search on by default.  The default here is the least restrictive one.
  'Default License' => 'http://creativecommons.org/licenses/by/2.0/',
    
);  


////////////////////////////////////////////////////////////////////////////////
//       ================== END OF CONFIGURATION =======================      //
////////////////////////////////////////////////////////////////////////////////


// Standard PHP Backend Data Passing
//  if data was passed using xinha_pass_to_php_backend() we merge the items
//  provided into the Config
require_once(realpath(dirname(__FILE__) . '/../../contrib/php-xinha.php'));
if($passed_data = xinha_read_passed_data())
{
  $IMConfig = array_merge($IMConfig, $passed_data);
  $IMConfig['backend_url'] .= xinha_passed_data_querystring() . '&';
  
  if($IMConfig['Flickr'])
  {
    foreach($FlickrDefaults as $k => $v)
    {
      if(!isset($IMConfig['Flickr'][$k]))
      {
        $IMConfig['Flickr'][$k] = $v;
      }
    }
  }
}
// Deprecated config passing, don't use this way any more!
elseif(isset($_REQUEST['backend_config']))
{
  if(get_magic_quotes_gpc()) {
    $_REQUEST['backend_config'] = stripslashes($_REQUEST['backend_config']);
  }
  
  if($_REQUEST['backend_config_secret_key_location'] !== 'Xinha:ImageManager')
  {
    trigger_error('Programming Error - please contact the website administrator/programmer to alert them to this problem. A non-default backend key location is being used to pass backend data to Xinha, but the same key location is not being used to receive data.  The special backend configuration has been ignored.  To resolve this, you should edit plugins/ImageManager/config.php and change the default key location from "Xinha:ImageManager" to your desired non default.  See: http://trac.xinha.org/ticket/1518', E_USER_ERROR);    
  }
  else
  {
  
  // Config specified from front end, check that it's valid
  session_start();
  $secret = $_SESSION[$_REQUEST['backend_config_secret_key_location']];

  if($_REQUEST['backend_config_hash'] !== sha1($_REQUEST['backend_config'] . $secret))
  {
    die("Backend security error.");
  }

  $to_merge = unserialize($_REQUEST['backend_config']);
  if(!is_array($to_merge))
  {
    die("Backend config syntax error.");
  }

  $IMConfig = array_merge($IMConfig, $to_merge);
  $IMConfig['backend_url'] .= "backend_config=" . rawurlencode($_REQUEST['backend_config']) . '&';
  $IMConfig['backend_url'] .= "backend_config_hash=" . rawurlencode($_REQUEST['backend_config_hash']) . '&';
  $IMConfig['backend_url'] .= "backend_config_secret_key_location=" . rawurlencode($_REQUEST['backend_config_secret_key_location']) . '&';
  }
}

define('IMAGE_CLASS', $IMConfig['IMAGE_CLASS']);
define('IMAGE_TRANSFORM_LIB_PATH', $IMConfig['IMAGE_TRANSFORM_LIB_PATH']);
define( "IM_CONFIG_LOADED", "yes" );

// bring in the debugging library

include_once( "ddt.php" );

// uncomment to send debug messages to a local file
// _setDebugLog( "/tmp/debug_log.txt" );

// turn debugging on everywhere.
// _ddtOn();

// END

?>