<?php
require_once('AuthPlugin.php');
class Auth_FAS extends AuthPlugin {
    function authenticate($username, $password) {
        if ( ucfirst(strtolower($username)) != ucfirst($username) ) {
            return false;
        }

        $username = strtolower( $username);
        $ch = curl_init();

{% if env == 'staging' %}
        curl_setopt($ch, CURLOPT_URL, 'https://admin.stg.fedoraproject.org/accounts/json/person_by_username?tg_format=json');
{% else %}
        curl_setopt($ch, CURLOPT_URL, 'https://admin.fedoraproject.org/accounts/json/person_by_username?tg_format=json');
{% endif %}
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_USERAGENT, "Auth_FAS 0.9");
        curl_setopt($ch, CURLOPT_POSTFIELDS, "username=".urlencode($username)."&user_name=".urlencode($username)."&password=".urlencode($password)."&login=Login");
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

        # WARNING: Never leave this on in production, as it will cause
        # plaintext passwords to show up in error logs.
        curl_setopt($ch, CURLOPT_VERBOSE, 0);

        # The following two lines need to be enabled when using a test FAS
        # with an invalid cert.  Otherwise they should be commented (or
        # set to True) for security.
        #curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        #curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
        $response = json_decode(curl_exec($ch), true);
        curl_close ($ch);

        if (!isset($response["success"])) {
            error_log("FAS auth failed for $username: incorrect username or password", 0);
            return false;
        }

        $groups = $response["person"]["approved_memberships"];

        for ($i = 0, $cnt = count($groups); $i < $cnt; $i++) {
            if ($groups[$i]["name"] == "cla_done") {
                error_log("FAS auth succeeded for $username", 0);
                return true;
            }
        }
        error_log("FAS auth failed for $username: insufficient group membership", 0);
        return false;
    }

    function userExists( $username ) {
        if ( ucfirst(strtolower($username)) != ucfirst($username) ) {
            return false;
        }
        return true;
    }

    function modifyUITemplate(&$template) {
        $template->set('create', false);
        $template->set('useemail', false);
        $template->set('usedomain', false);
    }

    function updateUser( &$user ){
        $user->mEmail = strtolower($user->getName())."@fedoraproject.org";
        return true;
    }

    function autoCreate() {
        return true;
    }

    function setPassword($password) {
        return false;
    }

    function setDomain( $domain ) {
        $this->domain = $domain;
    }

    function validDomain( $domain ) {
        return true;
    }

    function updateExternalDB($user) {
        return true;
    }

    function canCreateAccounts() {
        return false;
    }

    function addUser($user, $password) {
        return true;
    }

    function strict() {
        return true;
    }

    function strictUserAuth( $username ) {
        return true;
    }

    function allowPasswordChange() {
        return false;
    }

    function initUser(&$user) {
        $user->mEmail = strtolower($user->getName())."@fedoraproject.org";
        $user->mEmailAuthenticated = wfTimestampNow();
        $user->setToken();
        $user->saveSettings();
        return true;
    }
}

/**
 * Some extension information init
 */
$wgExtensionCredits['other'][] = array(
    'name' => 'Auth_FAS',
    'version' => '0.9.1',
    'author' => 'Nigel Jones',
    'description' => 'Authorisation plugin allowing login with FAS2 accounts'
);

?>
