/usr/share/php/sabre21/Sabre/CardDAV/VCFExportPlugin.php is in php-sabre-dav-2.1 2.1.10-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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namespace Sabre\CardDAV;
use
Sabre\DAV,
Sabre\VObject,
Sabre\HTTP\RequestInterface,
Sabre\HTTP\ResponseInterface;
/**
* VCF Exporter
*
* This plugin adds the ability to export entire address books as .vcf files.
* This is useful for clients that don't support CardDAV yet. They often do
* support vcf files.
*
* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
* @author Evert Pot (http://evertpot.com/)
* @author Thomas Tanghus (http://tanghus.net/)
* @license http://sabre.io/license/ Modified BSD License
*/
class VCFExportPlugin extends DAV\ServerPlugin {
/**
* Reference to Server class
*
* @var Sabre\DAV\Server
*/
protected $server;
/**
* Initializes the plugin and registers event handlers
*
* @param DAV\Server $server
* @return void
*/
function initialize(DAV\Server $server) {
$this->server = $server;
$this->server->on('method:GET', [$this,'httpGet'], 90);
}
/**
* Intercepts GET requests on addressbook urls ending with ?export.
*
* @param RequestInterface $request
* @param ResponseInterface $response
* @return bool
*/
function httpGet(RequestInterface $request, ResponseInterface $response) {
$queryParams = $request->getQueryParameters();
if (!array_key_exists('export', $queryParams)) return;
$path = $request->getPath();
$node = $this->server->tree->getNodeForPath($path);
if (!($node instanceof IAddressBook)) return;
$this->server->transactionType = 'get-addressbook-export';
// Checking ACL, if available.
if ($aclPlugin = $this->server->getPlugin('acl')) {
$aclPlugin->checkPrivileges($path, '{DAV:}read');
}
$response->setHeader('Content-Type','text/directory');
$response->setStatus(200);
$nodes = $this->server->getPropertiesForPath($path, [
'{' . Plugin::NS_CARDDAV . '}address-data',
],1);
$response->setBody($this->generateVCF($nodes));
// Returning false to break the event chain
return false;
}
/**
* Merges all vcard objects, and builds one big vcf export
*
* @param array $nodes
* @return string
*/
function generateVCF(array $nodes) {
$output = "";
foreach($nodes as $node) {
if (!isset($node[200]['{' . Plugin::NS_CARDDAV . '}address-data'])) {
continue;
}
$nodeData = $node[200]['{' . Plugin::NS_CARDDAV . '}address-data'];
// Parsing this node so VObject can clean up the output.
$output .=
VObject\Reader::read($nodeData)->serialize();
}
return $output;
}
}
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