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<?php
namespace Sabre\CardDAV;
use Sabre\DAV;
use Sabre\VObject;
/**
* 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) 2007-2014 fruux GmbH (https://fruux.com/).
* @author Evert Pot (http://evertpot.com/)
* @author Thomas Tanghus (http://tanghus.net/)
* @license http://code.google.com/p/sabredav/wiki/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
*/
public function initialize(DAV\Server $server) {
$this->server = $server;
$this->server->subscribeEvent('beforeMethod',array($this,'beforeMethod'), 90);
}
/**
* 'beforeMethod' event handles. This event handles intercepts GET requests ending
* with ?export
*
* @param string $method
* @param string $uri
* @return bool
*/
public function beforeMethod($method, $uri) {
if ($method!='GET') return;
if ($this->server->httpRequest->getQueryString()!='export') return;
// splitting uri
list($uri) = explode('?',$uri,2);
$node = $this->server->tree->getNodeForPath($uri);
if (!($node instanceof IAddressBook)) return;
// Checking ACL, if available.
if ($aclPlugin = $this->server->getPlugin('acl')) {
$aclPlugin->checkPrivileges($uri, '{DAV:}read');
}
$this->server->httpResponse->setHeader('Content-Type','text/directory');
$this->server->httpResponse->sendStatus(200);
$nodes = $this->server->getPropertiesForPath($uri, array(
'{' . Plugin::NS_CARDDAV . '}address-data',
),1);
$this->server->httpResponse->sendBody($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
*/
public 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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