mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-07 16:44:20 +01:00
62 lines
2.2 KiB
PHP
62 lines
2.2 KiB
PHP
<?php
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/**
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* API: loading available images by application and image-name (without extension)
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*
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* Usage:
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* - /egroupware/api/images.php?template=idots
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* - /egroupware/api/images.php?template=pixelegg&debug=1 gives pretty-printed JSON
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*
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* @link www.egroupware.org
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* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
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* @package api
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @version $Id$
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*/
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use EGroupware\Api;
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// switch evtl. set output-compression off, as we cant calculate a Content-Length header with transparent compression
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ini_set('zlib.output_compression', 0);
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$GLOBALS['egw_info'] = array(
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'flags' => array(
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'currentapp' => 'api',
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'noheader' => true,
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'nocachecontrol' => true,
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)
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);
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include '../header.inc.php';
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$content = json_encode(Api\Image::map(preg_match('/^[a-z0-9_-]+$/i',$_GET['template']) ? $_GET['template'] : null),
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JSON_FORCE_OBJECT | // export empty php-arrays as empty objects, not empty arrays
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JSON_UNESCAPED_SLASHES | // do not escape slashes, smaller and better readable
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(!empty($_GET['debug']) ? JSON_PRETTY_PRINT : 0));
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// use an etag over the image mapp
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$etag = '"'.md5($content).'"';
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// headers to allow caching, egw_framework specifies etag on url to force reload, even with Expires header
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Api\Session::cache_control(86400); // cache for one day
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Header('Content-Type: '.(empty($_GET['debug'])?'text/javascript':'application/json').'; charset=utf-8');
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Header('ETag: '.$etag);
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// if servers send a If-None-Match header, response with 304 Not Modified, if etag matches
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if (isset($_SERVER['HTTP_IF_NONE_MATCH']) && $_SERVER['HTTP_IF_NONE_MATCH'] == $etag)
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{
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header("HTTP/1.1 304 Not Modified");
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exit;
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}
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if (empty($_GET['debug'])) $content = 'egw.set_images('.$content.", egw && egw.window !== window);\n";
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// we run our own gzip compression, to set a correct Content-Length of the encoded content
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if (in_array('gzip', explode(',',$_SERVER['HTTP_ACCEPT_ENCODING'])) && function_exists('gzencode'))
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{
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$content = gzencode($content);
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header('Content-Encoding: gzip');
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}
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// Content-Lenght header is important, otherwise browsers dont cache!
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Header('Content-Length: '.bytes($content));
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echo $content; |