gnu-social/plugins/OpenID/finishopenidlogin.php

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<?php
/*
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* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2008, 2009, StatusNet, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
require_once INSTALLDIR.'/plugins/OpenID/openid.php';
class FinishopenidloginAction extends Action
{
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var $error = null;
var $username = null;
var $message = null;
function handle($args)
{
parent::handle($args);
if (common_is_real_login()) {
$this->clientError(_m('Already logged in.'));
} else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
$this->showForm(_m('There was a problem with your session token. Try again, please.'));
return;
}
if ($this->arg('create')) {
if (!$this->boolean('license')) {
$this->showForm(_m('You can\'t register if you don\'t agree to the license.'),
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$this->trimmed('newname'));
return;
}
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$this->createNewUser();
} else if ($this->arg('connect')) {
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$this->connectUser();
} else {
$this->showForm(_m('Something weird happened.'),
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$this->trimmed('newname'));
}
} else {
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$this->tryLogin();
}
}
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function showPageNotice()
{
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if ($this->error) {
$this->element('div', array('class' => 'error'), $this->error);
} else {
$this->element('div', 'instructions',
sprintf(_m('This is the first time you\'ve logged into %s so we must connect your OpenID to a local account. You can either create a new account, or connect with your existing account, if you have one.'), common_config('site', 'name')));
}
}
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function title()
{
return _m('OpenID Account Setup');
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}
function showForm($error=null, $username=null)
{
$this->error = $error;
$this->username = $username;
$this->showPage();
}
/**
* @fixme much of this duplicates core code, which is very fragile.
* Should probably be replaced with an extensible mini version of
* the core registration form.
*/
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function showContent()
{
if (!empty($this->message_text)) {
$this->element('div', array('class' => 'error'), $this->message_text);
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return;
}
$this->elementStart('form', array('method' => 'post',
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'id' => 'account_connect',
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'class' => 'form_settings',
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'action' => common_local_url('finishopenidlogin')));
$this->hidden('token', common_session_token());
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$this->elementStart('fieldset', array('id' => 'form_openid_createaccount'));
$this->element('legend', null,
_m('Create new account'));
$this->element('p', null,
_m('Create a new user with this nickname.'));
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$this->elementStart('ul', 'form_data');
$this->elementStart('li');
$this->input('newname', _m('New nickname'),
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($this->username) ? $this->username : '',
_m('1-64 lowercase letters or numbers, no punctuation or spaces'));
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$this->elementEnd('li');
$this->elementStart('li');
$this->element('input', array('type' => 'checkbox',
'id' => 'license',
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'class' => 'checkbox',
'name' => 'license',
'value' => 'true'));
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$this->elementStart('label', array('for' => 'license',
'class' => 'checkbox'));
$message = _('My text and files are available under %s ' .
'except this private data: password, ' .
'email address, IM address, and phone number.');
$link = '<a href="' .
htmlspecialchars(common_config('license', 'url')) .
'">' .
htmlspecialchars(common_config('license', 'title')) .
'</a>';
$this->raw(sprintf(htmlspecialchars($message), $link));
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$this->elementEnd('label');
$this->elementEnd('li');
$this->elementEnd('ul');
$this->submit('create', _m('Create'));
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$this->elementEnd('fieldset');
$this->elementStart('fieldset', array('id' => 'form_openid_createaccount'));
$this->element('legend', null,
_m('Connect existing account'));
$this->element('p', null,
_m('If you already have an account, login with your username and password to connect it to your OpenID.'));
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$this->elementStart('ul', 'form_data');
$this->elementStart('li');
$this->input('nickname', _m('Existing nickname'));
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$this->elementEnd('li');
$this->elementStart('li');
$this->password('password', _m('Password'));
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$this->elementEnd('li');
$this->elementEnd('ul');
$this->submit('connect', _m('Connect'));
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$this->elementEnd('fieldset');
$this->elementEnd('form');
}
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function tryLogin()
{
$consumer = oid_consumer();
$response = $consumer->complete(common_local_url('finishopenidlogin'));
if ($response->status == Auth_OpenID_CANCEL) {
$this->message(_m('OpenID authentication cancelled.'));
return;
} else if ($response->status == Auth_OpenID_FAILURE) {
// Authentication failed; display the error message.
$this->message(sprintf(_m('OpenID authentication failed: %s'), $response->message));
} else if ($response->status == Auth_OpenID_SUCCESS) {
// This means the authentication succeeded; extract the
// identity URL and Simple Registration data (if it was
// returned).
$display = $response->getDisplayIdentifier();
$canonical = ($response->endpoint->canonicalID) ?
$response->endpoint->canonicalID : $response->getDisplayIdentifier();
oid_assert_allowed($display);
oid_assert_allowed($canonical);
$sreg_resp = Auth_OpenID_SRegResponse::fromSuccessResponse($response);
if ($sreg_resp) {
$sreg = $sreg_resp->contents();
}
// Launchpad teams extension
if (!oid_check_teams($response)) {
$this->message(_m('OpenID authentication aborted: you are not allowed to login to this site.'));
return;
}
$user = oid_get_user($canonical);
if ($user) {
oid_set_last($display);
# XXX: commented out at @edd's request until better
# control over how data flows from OpenID provider.
# oid_update_user($user, $sreg);
common_set_user($user);
common_real_login(true);
if (isset($_SESSION['openid_rememberme']) && $_SESSION['openid_rememberme']) {
common_rememberme($user);
}
unset($_SESSION['openid_rememberme']);
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$this->goHome($user->nickname);
} else {
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$this->saveValues($display, $canonical, $sreg);
$this->showForm(null, $this->bestNewNickname($display, $sreg));
}
}
}
function message($msg)
{
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$this->message_text = $msg;
$this->showPage();
}
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function saveValues($display, $canonical, $sreg)
{
common_ensure_session();
$_SESSION['openid_display'] = $display;
$_SESSION['openid_canonical'] = $canonical;
$_SESSION['openid_sreg'] = $sreg;
}
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function getSavedValues()
{
return array($_SESSION['openid_display'],
$_SESSION['openid_canonical'],
$_SESSION['openid_sreg']);
}
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function createNewUser()
{
# FIXME: save invite code before redirect, and check here
if (common_config('site', 'closed')) {
$this->clientError(_m('Registration not allowed.'));
return;
}
$invite = null;
if (common_config('site', 'inviteonly')) {
$code = $_SESSION['invitecode'];
if (empty($code)) {
$this->clientError(_m('Registration not allowed.'));
return;
}
$invite = Invitation::staticGet($code);
if (empty($invite)) {
$this->clientError(_m('Not a valid invitation code.'));
return;
}
}
$nickname = $this->trimmed('newname');
if (!Validate::string($nickname, array('min_length' => 1,
'max_length' => 64,
'format' => NICKNAME_FMT))) {
$this->showForm(_m('Nickname must have only lowercase letters and numbers and no spaces.'));
return;
}
if (!User::allowed_nickname($nickname)) {
$this->showForm(_m('Nickname not allowed.'));
return;
}
if (User::staticGet('nickname', $nickname)) {
$this->showForm(_m('Nickname already in use. Try another one.'));
return;
}
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list($display, $canonical, $sreg) = $this->getSavedValues();
if (!$display || !$canonical) {
$this->serverError(_m('Stored OpenID not found.'));
return;
}
# Possible race condition... let's be paranoid
$other = oid_get_user($canonical);
if ($other) {
$this->serverError(_m('Creating new account for OpenID that already has a user.'));
return;
}
Event::handle('StartOpenIDCreateNewUser', array($canonical, &$sreg));
$location = '';
if (!empty($sreg['country'])) {
if ($sreg['postcode']) {
# XXX: use postcode to get city and region
# XXX: also, store postcode somewhere -- it's valuable!
$location = $sreg['postcode'] . ', ' . $sreg['country'];
} else {
$location = $sreg['country'];
}
}
if (!empty($sreg['fullname']) && mb_strlen($sreg['fullname']) <= 255) {
$fullname = $sreg['fullname'];
} else {
$fullname = '';
}
if (!empty($sreg['email']) && Validate::email($sreg['email'], common_config('email', 'check_domain'))) {
$email = $sreg['email'];
} else {
$email = '';
}
# XXX: add language
# XXX: add timezone
$args = array('nickname' => $nickname,
'email' => $email,
'fullname' => $fullname,
'location' => $location);
if (!empty($invite)) {
$args['code'] = $invite->code;
}
$user = User::register($args);
$result = oid_link_user($user->id, $canonical, $display);
Event::handle('EndOpenIDCreateNewUser', array($user, $canonical, $sreg));
oid_set_last($display);
common_set_user($user);
common_real_login(true);
if (isset($_SESSION['openid_rememberme']) && $_SESSION['openid_rememberme']) {
common_rememberme($user);
}
unset($_SESSION['openid_rememberme']);
common_redirect(common_local_url('showstream', array('nickname' => $user->nickname)),
303);
}
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function connectUser()
{
$nickname = $this->trimmed('nickname');
$password = $this->trimmed('password');
if (!common_check_user($nickname, $password)) {
$this->showForm(_m('Invalid username or password.'));
return;
}
# They're legit!
$user = User::staticGet('nickname', $nickname);
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list($display, $canonical, $sreg) = $this->getSavedValues();
if (!$display || !$canonical) {
$this->serverError(_m('Stored OpenID not found.'));
return;
}
$result = oid_link_user($user->id, $canonical, $display);
if (!$result) {
$this->serverError(_m('Error connecting user to OpenID.'));
return;
}
if (Event::handle('StartOpenIDUpdateUser', array($user, $canonical, &$sreg))) {
oid_update_user($user, $sreg);
}
Event::handle('EndOpenIDUpdateUser', array($user, $canonical, $sreg));
oid_set_last($display);
common_set_user($user);
common_real_login(true);
if (isset($_SESSION['openid_rememberme']) && $_SESSION['openid_rememberme']) {
common_rememberme($user);
}
unset($_SESSION['openid_rememberme']);
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$this->goHome($user->nickname);
}
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function goHome($nickname)
{
$url = common_get_returnto();
if ($url) {
# We don't have to return to it again
common_set_returnto(null);
$url = common_inject_session($url);
} else {
$url = common_local_url('all',
array('nickname' =>
$nickname));
}
common_redirect($url, 303);
}
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function bestNewNickname($display, $sreg)
{
# Try the passed-in nickname
if (!empty($sreg['nickname'])) {
$nickname = $this->nicknamize($sreg['nickname']);
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if ($this->isNewNickname($nickname)) {
return $nickname;
}
}
# Try the full name
if (!empty($sreg['fullname'])) {
$fullname = $this->nicknamize($sreg['fullname']);
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if ($this->isNewNickname($fullname)) {
return $fullname;
}
}
# Try the URL
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$from_url = $this->openidToNickname($display);
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if ($from_url && $this->isNewNickname($from_url)) {
return $from_url;
}
# XXX: others?
return null;
}
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function isNewNickname($str)
{
if (!Validate::string($str, array('min_length' => 1,
'max_length' => 64,
'format' => NICKNAME_FMT))) {
return false;
}
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if (!User::allowed_nickname($str)) {
return false;
}
if (User::staticGet('nickname', $str)) {
return false;
}
return true;
}
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function openidToNickname($openid)
{
if (Auth_Yadis_identifierScheme($openid) == 'XRI') {
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return $this->xriToNickname($openid);
} else {
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return $this->urlToNickname($openid);
}
}
# We try to use an OpenID URL as a legal StatusNet user name in this order
# 1. Plain hostname, like http://evanp.myopenid.com/
# 2. One element in path, like http://profile.typekey.com/EvanProdromou/
# or http://getopenid.com/evanprodromou
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function urlToNickname($openid)
{
return common_url_to_nickname($openid);
}
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function xriToNickname($xri)
{
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$base = $this->xriBase($xri);
if (!$base) {
return null;
} else {
# =evan.prodromou
# or @gratis*evan.prodromou
$parts = explode('*', substr($base, 1));
return $this->nicknamize(array_pop($parts));
}
}
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function xriBase($xri)
{
if (substr($xri, 0, 6) == 'xri://') {
return substr($xri, 6);
} else {
return $xri;
}
}
# Given a string, try to make it work as a nickname
function nicknamize($str)
{
return common_nicknamize($str);
}
}