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<?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);
}
?>
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