friendica/mod/openid.php

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<?php
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/**
* @file mod/openid.php
*/
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use Friendica\App;
use Friendica\Core\Authentication;
use Friendica\Core\Config;
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use Friendica\Core\L10n;
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use Friendica\Core\Logger;
use Friendica\Database\DBA;
use Friendica\Util\Strings;
function openid_content(App $a) {
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$noid = Config::get('system','no_openid');
if($noid)
$a->internalRedirect();
Logger::log('mod_openid ' . print_r($_REQUEST,true), Logger::DATA);
if(!empty($_GET['openid_mode']) && !empty($_SESSION['openid'])) {
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$openid = new LightOpenID($a->getHostName());
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if($openid->validate()) {
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$authid = $_REQUEST['openid_identity'];
if(! strlen($authid)) {
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Logger::log(L10n::t('OpenID protocol error. No ID returned.') . EOL);
$a->internalRedirect();
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}
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// NOTE: we search both for normalised and non-normalised form of $authid
// because the normalization step was removed from setting
// mod/settings.php in 8367cad so it might have left mixed
// records in the user table
//
$r = q("SELECT *
FROM `user`
WHERE ( `openid` = '%s' OR `openid` = '%s' )
AND `blocked` = 0 AND `account_expired` = 0
AND `account_removed` = 0 AND `verified` = 1
LIMIT 1",
DBA::escape($authid), DBA::escape(Strings::normaliseOpenID($authid))
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);
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if (DBA::isResult($r)) {
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// successful OpenID login
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unset($_SESSION['openid']);
Authentication::setAuthenticatedSessionForUser($r[0],true,true);
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// just in case there was no return url set
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// and we fell through
$a->internalRedirect();
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}
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// Successful OpenID login - but we can't match it to an existing account.
// New registration?
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if (intval(Config::get('config', 'register_policy')) === REGISTER_CLOSED) {
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notice(L10n::t('Account not found and OpenID registration is not permitted on this site.') . EOL);
$a->internalRedirect();
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}
unset($_SESSION['register']);
$args = '';
$attr = $openid->getAttributes();
if (is_array($attr) && count($attr)) {
foreach ($attr as $k => $v) {
if ($k === 'namePerson/friendly') {
$nick = Strings::escapeTags(trim($v));
}
if($k === 'namePerson/first') {
$first = Strings::escapeTags(trim($v));
}
if($k === 'namePerson') {
$args .= '&username=' . urlencode(Strings::escapeTags(trim($v)));
}
if ($k === 'contact/email') {
$args .= '&email=' . urlencode(Strings::escapeTags(trim($v)));
}
if ($k === 'media/image/aspect11') {
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$photosq = bin2hex(trim($v));
}
if ($k === 'media/image/default') {
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$photo = bin2hex(trim($v));
}
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}
}
if ($nick) {
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$args .= '&nickname=' . urlencode($nick);
}
elseif ($first) {
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$args .= '&nickname=' . urlencode($first);
}
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if ($photosq) {
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$args .= '&photo=' . urlencode($photosq);
}
elseif ($photo) {
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$args .= '&photo=' . urlencode($photo);
}
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$args .= '&openid_url=' . urlencode(Strings::escapeTags(trim($authid)));
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$a->internalRedirect('register?' . $args);
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// NOTREACHED
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}
}
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notice(L10n::t('Login failed.') . EOL);
$a->internalRedirect();
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// NOTREACHED
}