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<?php
// This module is currently !!!HIGHLY EXPERIMENTAL!!!
// You should think twice before running this on a production server
// as security mechanisms are not yet implemented and those that
// are implemented probably don't work.
// DAV mounts will probably fail if you don't use SSL, because some platforms refuse to send
// basic auth over non-encrypted connections.
// One could use digest auth - but then one has to calculate the A1 digest and store it for
// all acounts. We aren't doing that. We have a stored password already. We don't need another
// one. The login unfortunately is the channel nickname (webbie) as we have no way of passing
// the destination channel to DAV. You should be able to login with your account credentials
// and be directed to your default channel.
// This interface does not yet support Red stored files. Consider any content in your "store"
// directory to be throw-away until advised otherwise.
use Sabre\DAV;
require_once('vendor/autoload.php');
// workaround for HTTP-auth in CGI mode
if(x($_SERVER,'REDIRECT_REMOTE_USER')) {
$userpass = base64_decode(substr($_SERVER["REDIRECT_REMOTE_USER"],6)) ;
if(strlen($userpass)) {
list($name, $password) = explode(':', $userpass);
$_SERVER['PHP_AUTH_USER'] = $name;
$_SERVER['PHP_AUTH_PW'] = $password;
}
}
if(x($_SERVER,'HTTP_AUTHORIZATION')) {
$userpass = base64_decode(substr($_SERVER["HTTP_AUTHORIZATION"],6)) ;
if(strlen($userpass)) {
list($name, $password) = explode(':', $userpass);
$_SERVER['PHP_AUTH_USER'] = $name;
$_SERVER['PHP_AUTH_PW'] = $password;
}
}
class RedBasicAuth extends Sabre\DAV\Auth\Backend\AbstractBasic {
public $channel_name = '';
public $channel_id = 0;
public $channel_hash = '';
public $observer = '';
protected function validateUserPass($username, $password) {
require_once('include/auth.php');
$record = account_verify_password($email,$pass);
if($record && $record['account_default_channel']) {
$r = q("select * from channel where channel_account_id = %d and channel_id = %d limit 1",
intval($record['account_id']),
intval($record['account_default_channel'])
);
if($r) {
$this->currentUser = $r[0]['channel_address'];
$this->channel_name = $r[0]['channel_address'];
$this->channel_id = $r[0]['channel_id'];
$this->channel_hash = $this->observer = $r[0]['channel_hash'];
return true;
}
}
$r = q("select * from channel where channel_address = '%s' limit 1",
dbesc($username)
);
if($r) {
$x = q("select * from account where account_id = %d limit 1",
intval($r[0]['channel_account_id'])
);
if($x) {
foreach($x as $record) {
if(($record['account_flags'] == ACCOUNT_OK) || ($record['account_flags'] == ACCOUNT_UNVERIFIED)
&& (hash('whirlpool',$record['account_salt'] . $password) === $record['account_password'])) {
logger('(DAV) RedBasicAuth: password verified for ' . $username);
$this->currentUser = $r[0]['channel_address'];
$this->channel_name = $r[0]['channel_address'];
$this->channel_id = $r[0]['channel_id'];
$this->channel_hash = $this->observer = $r[0]['channel_hash'];
return true;
}
}
}
}
logger('(DAV) RedBasicAuth: password failed for ' . $username);
return false;
}
function setCurrentUser($name) {
$this->currentUser = $name;
}
}
function cloud_init(&$a) {
if(! get_config('system','enable_cloud'))
killme();
require_once('include/reddav.php');
$auth = new RedBasicAuth();
$ob_hash = get_observer_hash();
if($ob_hash) {
if(local_user()) {
$channel = $a->get_channel();
$auth->setCurrentUser($channel['channel_address']);
$auth->channel_name = $channel['channel_address'];
$auth->channel_id = $channel['channel_id'];
$auth->channel_hash = $channel['channel_hash'];
}
$auth->observer = $ob_hash;
}
$rootDirectory = new RedDirectory('/',$auth);
$server = new DAV\Server($rootDirectory);
$lockBackend = new DAV\Locks\Backend\File('store/data/locks');
$lockPlugin = new DAV\Locks\Plugin($lockBackend);
$server->addPlugin($lockPlugin);
if(! $auth->observer)
$auth->Authenticate($server,'Red Matrix');
$browser = new DAV\Browser\Plugin();
$server->addPlugin($browser);
// All we need to do now, is to fire up the server
$server->exec();
killme();
}
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