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<?php
/**
* Displays an image and allows modifications if required.
*
* Copyright 2003-2006 Marko Djukic <marko@oblo.com>
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
*
* $Horde: horde/services/images/view.php,v 1.20.10.6 2006/05/24 02:22:03 selsky Exp $
*
* @author Marko Djukic <marko@oblo.com>
*/
@define('HORDE_BASE', dirname(__FILE__) . '/../..');
require_once HORDE_BASE . '/lib/base.php';
/* Get file info. The following parameters are available:
* 'f' - the filename.
* 's' - the source, either the 'tmp' directory or VFS.
* 'c' - which app's config to use for VFS, defaults to Horde.
* 'p' - the directory of the file.
* 'n' - the name to set to the filename or default to same as filename.
* 'a' - perform some action on the image, such as scaling. */
$file = basename(Util::getFormData('f'));
$source = strtolower(Util::getFormData('s', 'tmp'));
$app_conf = strtolower(Util::getFormData('c', 'horde'));
$name = Util::getFormData('n', $file);
$action = strtolower(Util::getFormData('a'));
switch ($source) {
case 'vfs':
/* Change app if needed to get the right VFS config. */
$changed_conf = $registry->pushApp($app_conf);
/* Getting a file from Horde's VFS. */
require_once 'VFS.php';
$vfs = &VFS::singleton($conf['vfs']['type'], Horde::getDriverConfig('vfs', $conf['vfs']['type']));
$path = Util::getFormData('p');
$file_data = $vfs->read($path, $file);
if (is_a($file_data, 'PEAR_Error')) {
Horde::logMessage(sprintf('Error displaying image [%s]: %s', $path . '/' . $file, $file_data->getMessage()), __FILE__, __LINE__, PEAR_LOG_ERR);
exit;
}
/* Return the original app if changed previously. */
if ($changed_conf) {
$registry->popApp($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;
} else {
$file_name = $tmpdir . '/mod_' . $file;
if (!file_exists($file_name)) {
copy($tmpdir . '/' . $file, $file_name);
}
}
if (!file_exists($file_name)) {
Horde::logMessage(sprintf('Image not found [%s]', $file_name), __FILE__, __LINE__, PEAR_LOG_ERR);
exit;
}
$file_data = file_get_contents($file_name);
break;
}
/* Load the image object. */
require_once 'Horde/Image.php';
$params = array('temp' => Horde::getTempDir());
if (!empty($conf['image']['convert'])) {
$image = &Horde_Image::singleton('im', $params);
} else {
$image = &Horde_Image::singleton('gd', $params);
}
$image->loadString($file, $file_data);
/* Check if no editing action required and send the image to browser. */
if (empty($action)) {
$image->display();
exit;
}
/* Image editing required. */
switch ($action) {
case 'rotate':
$image->rotate(Util::getFormData('v'));
break;
case 'flip':
$image->flip();
break;
case 'mirror':
$image->mirror();
break;
case 'grayscale':
$image->grayscale();
break;
case 'resize':
list($width, $height, $ratio) = explode('.', Util::getFormData('v'));
/* If no width or height has been passed, get the original
* ones. */
if (empty($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. */
$fp = @fopen($file_name, 'wb');
fwrite($fp, $image->raw());
fclose($fp);
$image->display();
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