phpfspot

 <?php

 /***************************************************************************

  *

  * phpfspot, presents your F-Spot photo collection in Web browsers.

  *

  * Copyright (c) by Andreas Unterkircher

  *

  *  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.

  *

  ***************************************************************************/

 require_once "phpfspot.class.php";

 /**

  * PHPFSPOT_IMG class

  *

  * handles phpfspot's photos. It will output either the photo binaries

  * or can also show error messages as a on-the-fly generated picture.

  * @package phpfspot

  */

 class PHPFSPOT_IMG {

    private $db;

    private $parent;

    /**

     * PHPFSPOT_IMG class constructor

     */

    public function __construct()

    {

       $this->parent = new PHPFSPOT;

       $this->db = $this->parent->db;

    } // __construct()

    /**

     * PHPFSPOT_IMG class destructor

     */

    public function __destruct()

    {

    } // __desctruct()

    /**

     * sends the specified image to the browser

     *

     * this function will send the specified image to

     * the client - in the specified width. it also try's

     * to create on-the-fly missing thumbnails via PHPFSPOT

     * gen_thumbs function.

     * @param integer $idx

     * @param integer $width

     */

    public function showImg($idx, $width = 0, $version = NULL)

    {

       if($idx == 'rand')

          $idx = $this->parent->get_random_photo();

       /* display the lastest available version, if a wrong version has been requested */

       if(!isset($version) || !$this->parent->is_valid_version($idx, $version))

          $version = $this->parent->get_latest_version($idx);

       $details = $this->parent->get_photo_details($idx, $version);

       if(!$details) {

          $this->parent->showTextImage("The image (". $idx .") you requested is unknown");

          return;

       }

       /* no width specified - show photo in its original size */

       if($width == 0) {

          $fullpath = $this->parent->translate_path($this->parent->parse_uri($details['uri'], 'fullpath'));

       }

       /* show thumbnail */

       else {

          if(!$this->parent->is_valid_width($width)) {

             $this->parent->showTextImage("Requested width ". $width ."px is not valid!");

             return;

          }

          /* check for an entry if we already handled this photo before. If not,

             create a thumbnail for it.

          */

          if(!$this->parent->getMD5($idx)) {

             $this->parent->gen_thumb($idx);

          }

          /* get the full filesystem path to the thumbnail */

          $fullpath = $this->parent->get_thumb_path($width, $idx, $version);

          /* if the thumb file does not exist, create it */

          if(!file_exists($fullpath)) {

             $this->parent->gen_thumb($idx);

          }

       }

       if(!file_exists($fullpath)) {

          $this->parent->showTextImage("File ". basename($fullpath) ." does not exist");

          return;

       }

       if(!is_readable($fullpath)) {

          $this->parent->showTextImage("File ". basename($fullpath) ." is not readable. Check the permissions");

          return;

       }

       $mime = $this->parent->get_mime_info($fullpath);

       if(!$this->parent->checkifImageSupported($mime)) {

          $this->parent->showTextImage("Unsupported Image Type");

          return;

       }

       Header("Content-Type: ". $mime);

       Header("Content-Length: ". filesize($fullpath));

       Header("Content-Transfer-Encoding: binary\n");

       Header("Content-Disposition: inline; filename=\"". $this->parent->parse_uri($details['uri'], 'filename') ."\"");

       Header("Content-Description: ". $this->parent->parse_uri($details['uri'], 'filename'));

       Header("Accept-Ranges: bytes");

       Header("Connection: close");

       Header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");

       Header("Cache-Control: no-cache");

       Header("Pragma: no-cache");

       $file = fopen($fullpath, "rb");

       fpassthru($file);

       @fclose($file);

    } // showImg()

    /**

     * sends a random photo of the requested tag to the browser

     *

     * this function will send a random photo to the client.

     * It is selected out by the provided $tagidx. It also try's

     * to create on-the-fly missing thumbnails via PHPFSPOT

     * gen_thumbs function.

     * @param integer $idx

     */

    public function showTagImg($tagidx)

    {

       $idx = $this->parent->get_random_tag_photo($tagidx);

       $width = 30;

       $details = $this->parent->get_photo_details($idx);

       if(!$details) {

          $this->parent->showTextImage("The image (". $idx .") you requested is unknown");

          return;

       }

       /* if no entry for this photo is yet in the database, create thumb */

       if(!$this->parent->getMD5($idx)) {

          $this->parent->gen_thumb($idx);

       }

       $version = $this->parent->get_latest_version($idx);

       $fullpath = $this->parent->get_thumb_path($width, $idx, $version);

       /* if the thumb file does not exist, create it */

       if(!file_exists($fullpath)) {

          $this->parent->gen_thumb($idx);

       }

       if(!file_exists($fullpath)) {

          $this->parent->showTextImage("File ". basename($fullpath) ." does not exist");

          return;

       }

       if(!is_readable($fullpath)) {

          $this->parent->showTextImage("File ". basename($fullpath) ." is not readable. Check the permissions");

          return;

       }

       $mime = $this->parent->get_mime_info($fullpath);

       if(!$this->parent->checkifImageSupported($mime)) {

          $this->parent->showTextImage("Unsupported Image Type");

          return;

       }

       Header("Content-Type: ". $mime);

       Header("Content-Length: ". filesize($fullpath));

       Header("Content-Transfer-Encoding: binary\n");

       Header("Content-Disposition: inline; filename=\"". $this->parent->parse_uri($details['uri'], 'filename') ."\"");

       Header("Content-Description: ". $this->parent->parse_uri($details['uri'], 'filename'));

       Header("Accept-Ranges: bytes");

       Header("Connection: close");

       Header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");

       Header("Cache-Control: no-cache");

       Header("Pragma: no-cache");

       $file = fopen($fullpath, "rb");

       fpassthru($file);

       @fclose($file);

    } // showTagImg()

 } // PHPFSPOT_IMG()

 if(isset($_GET['idx']) && (is_numeric($_GET['idx']) || $_GET['idx'] == 'rand')) {

    $img = new PHPFSPOT_IMG;

    if(isset($_GET['width']) && is_numeric($_GET['width']))

       $width = $_GET['width'];

    else

       $width = NULL;

    if(isset($_GET['version']) && is_numeric($_GET['version']))

       $version = $_GET['version'];

    else

       $version = NULL;

    $img->showImg($_GET['idx'], $width, $version);

    exit(0);

 }

 if(isset($_GET['tagidx']) && is_numeric($_GET['tagidx'])) {

    $img = new PHPFSPOT_IMG;

    $img->showTagImg($_GET['tagidx']);

    exit(0);

 }

 ?>