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<?php
/**
* Displays an image and allows modifications if required.
*
* URL parameters:
* - a: perform some action on the image, such as scaling.
* - c: which app's config to use for VFS, defaults to Horde.
* - f: the filename.
* - n: the name to set to the filename or default to same as filename.
* - p: the directory of the file.
* - s: the source, either the 'tmp' directory or VFS.
*
* Copyright 2003-2016 Horde LLC (http://www.horde.org/)
*
* See the enclosed file COPYING for license information (LGPL-2). If you
* did not receive this file, see http://www.horde.org/licenses/lgpl.
*
* @author Marko Djukic <marko@oblo.com>
* @category Horde
* @license http://www.horde.org/licenses/lgpl LGPL-2
* @package Horde
*/
require_once __DIR__ . '/../../lib/Application.php';
Horde_Registry::appInit('horde', array('nologintasks' => true));
$vars = $injector->getInstance('Horde_Variables');
$file = basename($vars->f);
$source = strtolower($vars->get('s', 'tmp'));
$app_conf = strtolower($vars->get('c', 'horde'));
$name = $vars->get('n', $file);
$action = strtolower($vars->a);
switch ($source) {
case 'vfs':
/* Change app if needed to get the right VFS config. */
$pushed = $registry->pushApp($app_conf);
/* Getting a file from Horde's VFS. */
try {
$vfs = $injector->getInstance('Horde_Core_Factory_Vfs')->create();
$file_data = $vfs->read($vars->p, $file);
} catch (Horde_Vfs_Exception $e) {
Horde::log(sprintf('Error displaying image [%s]: %s', $vars->p . '/' . $file, $e->getMessage()), 'ERR');
exit;
}
/* Return the original app if changed previously. */
if ($pushed) {
$registry->popApp($app_conf);
}
break;
case 'tmp':
/* Getting a file from Horde's temp dir. */
$tmpdir = Horde::getTempDir();
if (empty($action) || ($action == 'resize')) {
/* Use original if no action or if resizing. */
$file_name = $tmpdir . '/' . $file;
if (file_exists($tmpdir . '/mod_' . $file)) {
unlink($tmpdir . '/mod_' . $file);
}
} else {
$file_name = $tmpdir . '/mod_' . $file;
if (!file_exists($file_name)) {
copy($tmpdir . '/' . $file, $file_name);
}
}
if (!file_exists($file_name)) {
Horde::log(sprintf('Image not found [%s]', $file_name), 'ERR');
exit;
}
$file_data = file_get_contents($file_name);
break;
}
/* Load the image object. */
$type = Horde_Mime_Magic::analyzeData($file_data);
$image = $injector->getInstance('Horde_Core_Factory_Image')->create(array(
'data' => $file_data,
'type' => $type
));
/* Check if no editing action required and send the image to browser. */
if (empty($action)) {
header('Content-Disposition: attachment');
$image->display();
exit;
}
/* Image editing required. */
switch ($action) {
case 'rotate':
$image->rotate($vars->v);
break;
case 'flip':
$image->flip();
break;
case 'mirror':
$image->mirror();
break;
case 'grayscale':
$image->grayscale();
break;
case 'resize':
list($width, $height, $ratio) = explode('.', $vars->v);
/* If no width or height has been passed, get the original
* ones. */
if (empty($width) || empty($height)) {
$orig = $image->getDimensions();
}
if (empty($width)) {
$width = $orig['width'];
}
if (empty($height)) {
$height = $orig['height'];
}
$image->resize($width, $height, $ratio);
/* Since the original is always used for resizing make sure the
* write is to 'mod_'. */
$file_name = $tmpdir . '/mod_' . $file;
break;
}
/* Write out any changes to the temporary file. */
file_put_contents($file_name, $image->raw());
header('Content-Disposition: attachment');
$image->display();
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