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<?php /** @file */
/**
* API Login via basic-auth or OAuth
*/
function api_login(&$a){
$record = null;
$remote_auth = false;
$sigblock = null;
require_once('include/oauth.php');
// login with oauth
try {
$oauth = new ZotOAuth1();
$req = OAuth1Request::from_request();
list($consumer,$token) = $oauth->verify_request($req);
if (!is_null($token)){
$oauth->loginUser($token->uid);
App::set_oauth_key($consumer->key);
call_hooks('logged_in', App::$user);
return;
}
killme();
}
catch(Exception $e) {
logger($e->getMessage());
}
// workarounds for HTTP-auth in CGI mode
foreach([ 'REDIRECT_REMOTE_USER', 'HTTP_AUTHORIZATION' ] as $head) {
/* Basic authentication */
if(array_key_exists($head,$_SERVER) && substr(trim($_SERVER[$head]),0,5) === 'Basic') {
$userpass = @base64_decode(substr(trim($_SERVER[$head]),6)) ;
if(strlen($userpass)) {
list($name, $password) = explode(':', $userpass);
$_SERVER['PHP_AUTH_USER'] = $name;
$_SERVER['PHP_AUTH_PW'] = $password;
}
break;
}
/* Signature authentication */
if(array_key_exists($head,$_SERVER) && substr(trim($_SERVER[$head]),0,9) === 'Signature') {
if($head !== 'HTTP_AUTHORIZATION') {
$_SERVER['HTTP_AUTHORIZATION'] = $_SERVER[$head];
continue;
}
$sigblock = \Zotlabs\Web\HTTPSig::parse_sigheader($_SERVER[$head]);
if($sigblock) {
$keyId = $sigblock['keyId'];
if($keyId) {
$r = q("select * from hubloc where hubloc_addr = '%s' limit 1",
dbesc($keyId)
);
if($r) {
$c = channelx_by_hash($r[0]['hubloc_hash']);
if($c) {
$a = q("select * from account where account_id = %d limit 1",
intval($c['channel_account_id'])
);
if($a) {
$record = [ 'channel' => $c, 'account' => $a[0] ];
$channel_login = $c['channel_id'];
}
else {
continue;
}
}
else {
continue;
}
}
else {
continue;
}
if($record) {
$verified = \Zotlabs\Web\HTTPSig::verify('',$record['channel']['channel_pubkey']);
if(! ($verified && $verified['header_signed'] && $verified['header_valid'])) {
$record = null;
}
break;
}
}
}
}
}
require_once('include/auth.php');
require_once('include/security.php');
// process normal login request
if(isset($_SERVER['PHP_AUTH_USER'])) {
$channel_login = 0;
$record = account_verify_password($_SERVER['PHP_AUTH_USER'],$_SERVER['PHP_AUTH_PW']);
if($record && $record['channel']) {
$channel_login = $record['channel']['channel_id'];
}
}
if($record['account']) {
authenticate_success($record['account']);
if($channel_login)
change_channel($channel_login);
$_SESSION['allow_api'] = true;
return true;
}
else {
$_SERVER['PHP_AUTH_PW'] = '*****';
logger('API_login failure: ' . print_r($_SERVER,true), LOGGER_DEBUG);
log_failed_login('API login failure');
retry_basic_auth();
}
}
function retry_basic_auth($method = 'Basic') {
header('WWW-Authenticate: ' . $method . ' realm="Hubzilla"');
header('HTTP/1.0 401 Unauthorized');
echo('This api requires login');
killme();
}
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