<?php

/**********************************************************************
 * Copyright (C) 2006 The Wikigraphe Team
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * See also http://www.fsf.org
 *********************************************************************/

if (save_image_file()) {
  $_GET['title'] = $_POST['title'];
  $_GET['mode'] = "view";
}

function save_image_file() {
  global $_FILES;
  global $_POST;
  
  /** Check if image needs to be changed. */
  if (!empty($_FILES['uploadedfile']['name']))
  {
    if (preg_match(ALLOWED_FILE_EXT, $_FILES['uploadedfile']['name'], $matches)) {
  
       if (($pos = strrpos($_FILES['uploadedfile']['name'], ".")) === FALSE)
           echo "Error - file doesn't have a dot... weird.";
       else
           $extension = substr($_FILES['uploadedfile']['name'], $pos + 1);
      /* XXX added validation for the file name. */ 
      $image_basename = validate_name($_POST['title']) . "." . $extension; 
  
       /* Check if image has the right size. */
       list($width, $height, $type, $attr) = getimagesize($_FILES['uploadedfile']['tmp_name']);
  
       if ($width > MAX_IMAGE_WIDTH || $height > MAX_IMAGE_HEIGHT) {
         echo "Image size (${width}x${height}) is too large, should be max. " . MAX_IMAGE_WIDTH . "x" . MAX_IMAGE_HEIGHT . ".";
         return false;
       } else {
       	 return save_uploaded_image_file($image_basename);
       }
     } else {
        echo "Illegal or unknown filetype";
        return false;
     }
  } else {
	return true;  	
  }
}

function save_uploaded_image_file($image_basename) {
  global $_FILES;
  global $_POST;
  global $DB;

  /* Add the original filename to our target path. Result is "uploads/filename.extension" */
  $target_path = 'data/images/' . $image_basename;

  if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) {

      $_POST['image'] = $image_basename; // KIND OF HACKY...
      $_POST['image_src'] = $target_path;

      /** Perform sql query */
      $sql = sprintf("SELECT COUNT(*) FROM `node` WHERE `title`='%s'", $_POST['title']);
      $result = $DB->getOne($sql);

      if ($result == 0)
        $sql = sprintf("INSERT INTO `%s` SET title='%s', image='%s'", 'node', $_POST['title'], $_POST['image']);
      else
        $sql = sprintf("UPDATE `%s` SET image='%s' WHERE title='%s'", 'node', $_POST['image'], $_POST['title']);

      $result = $DB->query($sql);

      if (PEAR::isError($result)) {
        echo 'Standard Message: ' . $result->getMessage() . "\n";
           echo 'Standard Code: ' . $result->getCode() . "\n";
           echo 'DBMS/User Message: ' . $result->getUserInfo() . "\n";
           echo 'DBMS/Debug Message: ' . $result->getDebugInfo() . "\n";
           exit;
      }

      return true;
  } else {
    echo "There was an error uploading the file, please try again!";
    return false;
  }
}