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')) {
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()) {
// TRANS: Client error message trying to log on with OpenID while already logged on.
$this->clientError(_m('Already logged in.'));
} else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
// TRANS: Message given when there is a problem with the user's 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')) {
// TRANS: Message given if user does not agree with the site's license.
$this->showForm(_m('You cannot register if you do not agree to the license.'),
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$this->trimmed('newname'));
return;
}
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$this->createNewUser();
} else if ($this->arg('connect')) {
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$this->connectUser();
} else {
// TRANS: Messag given on an unknown error.
$this->showForm(_m('An unknown error has occured.'),
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$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 {
$this->element('div', 'instructions',
// TRANS: Instructions given after a first successful logon using OpenID.
// TRANS: %s is the site name.
sprintf(_m('This is the first time you have logged into %s so we must connect your OpenID to a local account. You can either create a new account, or connect with your existing account, if you have one.'), common_config('site', 'name')));
}
}
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function title()
{
// TRANS: Title
return _m('TITLE','OpenID Account Setup');
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}
function showForm($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;
}
// We don't recognize this OpenID, so we're going to give the user
// two options, each in its own mini-form.
//
// First, they can create a new account using their OpenID auth
// info. The profile will be pre-populated with whatever name,
// email, and location we can get from the OpenID provider, so
// all we ask for is the license confirmation.
$this->elementStart('form', array('method' => 'post',
'id' => 'account_create',
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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,
// TRANS: Fieldset legend.
_m('Create new account'));
$this->element('p', null,
// TRANS: Form guide.
_m('Create a new user with this nickname.'));
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$this->elementStart('ul', 'form_data');
// Hook point for captcha etc
Event::handle('StartRegistrationFormData', array($this));
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$this->elementStart('li');
// TRANS: Field label.
$this->input('newname', _m('New nickname'),
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($this->username) ? $this->username : '',
// TRANS: Field title.
_m('1-64 lowercase letters or numbers, no punctuation or spaces.'));
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$this->elementEnd('li');
$this->elementStart('li');
// TRANS: Field label.
$this->input('email', _m('Email'), $this->getEmail(),
// TRANS: Field title.
_m('Used only for updates, announcements, '.
'and password recovery.'));
$this->elementEnd('li');
// Hook point for captcha etc
Event::handle('EndRegistrationFormData', array($this));
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$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'));
// TRANS: OpenID plugin link text.
// TRANS: %s is a link to a license with the license name as link text.
$message = _m('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');
// TRANS: Button label in form in which to create a new user on the site for an OpenID.
$this->submit('create', _m('BUTTON', 'Create'));
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$this->elementEnd('fieldset');
$this->elementEnd('form');
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// The second option is to attach this OpenID to an existing account
// on the local system, which they need to provide a password for.
$this->elementStart('form', array('method' => 'post',
'id' => 'account_connect',
'class' => 'form_settings',
'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,
// TRANS: Used as form legend for form in which to connect an OpenID to an existing user on the site.
_m('Connect existing account'));
$this->element('p', null,
// TRANS: User instructions for form in which to connect an OpenID to an existing user on the site.
_m('If you already have an account, login with your username and password to connect it to your OpenID.'));
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$this->elementStart('ul', 'form_data');
$this->elementStart('li');
// TRANS: Field label in form in which to connect an OpenID to an existing user on the site.
$this->input('nickname', _m('Existing nickname'));
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$this->elementEnd('li');
$this->elementStart('li');
// TRANS: Field label in form in which to connect an OpenID to an existing user on the site.
$this->password('password', _m('Password'));
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$this->elementEnd('li');
$this->elementEnd('ul');
// TRANS: Button text in form in which to connect an OpenID to an existing user on the site.
$this->submit('connect', _m('BUTTON', 'Connect'));
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$this->elementEnd('fieldset');
$this->elementEnd('form');
}
/**
* Get specified e-mail from the form, or the OpenID sreg info, or the
* invite code.
*
* @return string
*/
function getEmail()
{
$email = $this->trimmed('email');
if (!empty($email)) {
return $email;
}
// Pull from openid thingy
list($display, $canonical, $sreg) = $this->getSavedValues();
if (!empty($sreg['email'])) {
return $sreg['email'];
}
// Terrible hack for invites...
if (common_config('site', 'inviteonly')) {
$code = $_SESSION['invitecode'];
if ($code) {
$invite = Invitation::staticGet($code);
if ($invite && $invite->address_type == 'email') {
return $invite->address;
}
}
}
return '';
}
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function tryLogin()
{
$consumer = oid_consumer();
$response = $consumer->complete(common_local_url('finishopenidlogin'));
if ($response->status == Auth_OpenID_CANCEL) {
// TRANS: Status message in case the response from the OpenID provider is that the logon attempt was cancelled.
$this->message(_m('OpenID authentication cancelled.'));
return;
} else if ($response->status == Auth_OpenID_FAILURE) {
// TRANS: OpenID authentication failed; display the error message. %s is 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)) {
// TRANS: Message displayed when OpenID authentication is aborted.
$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'],
$_SESSION['openid_sreg']);
}
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function createNewUser()
{
// FIXME: save invite code before redirect, and check here
if (!Event::handle('StartRegistrationTry', array($this))) {
return;
}
if (common_config('site', 'closed')) {
// TRANS: OpenID plugin message. No new user registration is allowed on the site.
$this->clientError(_m('Registration not allowed.'));
return;
}
$invite = null;
if (common_config('site', 'inviteonly')) {
$code = $_SESSION['invitecode'];
if (empty($code)) {
// TRANS: OpenID plugin message. No new user registration is allowed on the site without an invitation code, and none was provided.
$this->clientError(_m('Registration not allowed.'));
return;
}
$invite = Invitation::staticGet($code);
if (empty($invite)) {
// TRANS: OpenID plugin message. No new user registration is allowed on the site without an invitation code, and the one provided was not valid.
$this->clientError(_m('Not a valid invitation code.'));
return;
}
}
try {
$nickname = Nickname::normalize($this->trimmed('newname'));
} catch (NicknameException $e) {
$this->showForm($e->getMessage());
return;
}
if (!User::allowed_nickname($nickname)) {
// TRANS: OpenID plugin message. The entered new user name is blacklisted.
$this->showForm(_m('Nickname not allowed.'));
return;
}
if (User::staticGet('nickname', $nickname)) {
// TRANS: OpenID plugin message. The entered new user name is already used.
$this->showForm(_m('Nickname already in use. Try another one.'));
return;
}
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list($display, $canonical, $sreg) = $this->getSavedValues();
if (!$display || !$canonical) {
// TRANS: OpenID plugin server error. A stored OpenID cannot be retrieved.
$this->serverError(_m('Stored OpenID not found.'));
return;
}
// Possible race condition... let's be paranoid
$other = oid_get_user($canonical);
if ($other) {
// TRANS: OpenID plugin server error.
$this->serverError(_m('Creating new account for OpenID that already has a user.'));
return;
}
Event::handle('StartOpenIDCreateNewUser', array($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 = '';
}
$email = $this->getEmail();
// 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($_SESSION['openid_rememberme']);
Event::handle('EndRegistrationTry', array($this));
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)) {
// TRANS: OpenID plugin message.
$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) {
// TRANS: OpenID plugin server error. A stored OpenID cannot be found.
$this->serverError(_m('Stored OpenID not found.'));
return;
}
$result = oid_link_user($user->id, $canonical, $display);
if (!$result) {
// TRANS: OpenID plugin server error. The user or user profile could not be saved.
$this->serverError(_m('Error connecting user to OpenID.'));
return;
}
if (Event::handle('StartOpenIDUpdateUser', array($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 (!Nickname::isValid($str)) {
return false;
}
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if (!User::allowed_nickname($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);
}
}