gnu-social/plugins/OpenID/OpenIDPlugin.php

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<?php
/**
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* StatusNet, the distributed open-source microblogging tool
*
* PHP version 5
*
* LICENCE: 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/>.
*
* @category Plugin
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* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Craig Andrews <candrews@integralblue.com>
* @copyright 2009-2010 StatusNet, Inc.
* @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
*/
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if (!defined('STATUSNET')) {
exit(1);
}
/**
* Plugin for OpenID authentication and identity
*
* This class enables consumer support for OpenID, the distributed authentication
* and identity system.
*
* @category Plugin
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* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Craig Andrews <candrews@integralblue.com>
* @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
* @link http://openid.net/
*/
class OpenIDPlugin extends Plugin
{
// Plugin parameter: set true to disallow non-OpenID logins
// If set, overrides the setting in database or $config['site']['openidonly']
public $openidOnly = null;
function initialize()
{
parent::initialize();
if ($this->openidOnly !== null) {
global $config;
$config['site']['openidonly'] = (bool)$this->openidOnly;
}
}
/**
* Add OpenID-related paths to the router table
*
* Hook for RouterInitialized event.
*
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* @param Net_URL_Mapper $m URL mapper
*
* @return boolean hook return
*/
function onStartInitializeRouter($m)
{
$m->connect('main/openid', array('action' => 'openidlogin'));
$m->connect('main/openidtrust', array('action' => 'openidtrust'));
$m->connect('settings/openid', array('action' => 'openidsettings'));
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$m->connect('index.php?action=finishopenidlogin',
array('action' => 'finishopenidlogin'));
$m->connect('index.php?action=finishaddopenid',
array('action' => 'finishaddopenid'));
$m->connect('main/openidserver', array('action' => 'openidserver'));
$m->connect('admin/openid', array('action' => 'openidadminpanel'));
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return true;
}
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/**
* In OpenID-only mode, disable paths for password stuff
*
* @param string $path path to connect
* @param array $defaults path defaults
* @param array $rules path rules
* @param array $result unused
*
* @return boolean hook return
*/
function onStartConnectPath(&$path, &$defaults, &$rules, &$result)
{
if (common_config('site', 'openidonly')) {
// Note that we should not remove the login and register
// actions. Lots of auth-related things link to them,
// such as when visiting a private site without a session
// or revalidating a remembered login for admin work.
//
// We take those two over with redirects to ourselves
// over in onArgsInitialize().
static $block = array('main/recoverpassword',
'settings/password');
if (in_array($path, $block)) {
return false;
}
}
return true;
}
/**
* If we've been hit with password-login args, redirect
*
* @param array $args args (URL, Get, post)
*
* @return boolean hook return
*/
function onArgsInitialize($args)
{
if (common_config('site', 'openidonly')) {
if (array_key_exists('action', $args)) {
$action = trim($args['action']);
if (in_array($action, array('login', 'register'))) {
common_redirect(common_local_url('openidlogin'));
exit(0);
} else if ($action == 'passwordsettings') {
common_redirect(common_local_url('openidsettings'));
exit(0);
} else if ($action == 'recoverpassword') {
throw new ClientException('Unavailable action');
}
}
}
return true;
}
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/**
* Public XRDS output hook
*
* Puts the bits of code needed by some OpenID providers to show
* we're good citizens.
*
* @param Action $action Action being executed
* @param XMLOutputter &$xrdsOutputter Output channel
*
* @return boolean hook return
*/
function onEndPublicXRDS($action, &$xrdsOutputter)
{
$xrdsOutputter->elementStart('XRD', array('xmlns' => 'xri://$xrd*($v*2.0)',
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'xmlns:simple' => 'http://xrds-simple.net/core/1.0',
'version' => '2.0'));
$xrdsOutputter->element('Type', null, 'xri://$xrds*simple');
//consumer
foreach (array('finishopenidlogin', 'finishaddopenid') as $finish) {
$xrdsOutputter->showXrdsService(Auth_OpenID_RP_RETURN_TO_URL_TYPE,
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common_local_url($finish));
}
//provider
$xrdsOutputter->showXrdsService('http://specs.openid.net/auth/2.0/server',
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common_local_url('openidserver'),
null,
null,
'http://specs.openid.net/auth/2.0/identifier_select');
$xrdsOutputter->elementEnd('XRD');
}
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/**
* User XRDS output hook
*
* Puts the bits of code needed to discover OpenID endpoints.
*
* @param Action $action Action being executed
* @param XMLOutputter &$xrdsOutputter Output channel
*
* @return boolean hook return
*/
function onEndUserXRDS($action, &$xrdsOutputter)
{
$xrdsOutputter->elementStart('XRD', array('xmlns' => 'xri://$xrd*($v*2.0)',
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'xml:id' => 'openid',
'xmlns:simple' => 'http://xrds-simple.net/core/1.0',
'version' => '2.0'));
$xrdsOutputter->element('Type', null, 'xri://$xrds*simple');
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//consumer
$xrdsOutputter->showXrdsService('http://specs.openid.net/auth/2.0/return_to',
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common_local_url('finishopenidlogin'));
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//provider
$xrdsOutputter->showXrdsService('http://specs.openid.net/auth/2.0/signon',
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common_local_url('openidserver'),
null,
null,
common_profile_url($action->user->nickname));
$xrdsOutputter->elementEnd('XRD');
}
/**
* If we're in OpenID-only mode, hide all the main menu except OpenID login.
*
* @param Action $action Action being run
*
* @return boolean hook return
*/
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function onStartPrimaryNav($action)
{
if (common_config('site', 'openidonly') && !common_logged_in()) {
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// TRANS: Tooltip for main menu option "Login"
$tooltip = _m('TOOLTIP', 'Login to the site');
$action->menuItem(common_local_url('openidlogin'),
// TRANS: Main menu option when not logged in to log in
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_m('MENU', 'Login'),
$tooltip,
false,
'nav_login');
// TRANS: Tooltip for main menu option "Help"
$tooltip = _m('TOOLTIP', 'Help me!');
$action->menuItem(common_local_url('doc', array('title' => 'help')),
// TRANS: Main menu option for help on the StatusNet site
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_m('MENU', 'Help'),
$tooltip,
false,
'nav_help');
if (!common_config('site', 'private')) {
// TRANS: Tooltip for main menu option "Search"
$tooltip = _m('TOOLTIP', 'Search for people or text');
$action->menuItem(common_local_url('peoplesearch'),
// TRANS: Main menu option when logged in or when the StatusNet instance is not private
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_m('MENU', 'Search'), $tooltip, false, 'nav_search');
}
Event::handle('EndPrimaryNav', array($action));
return false;
}
return true;
}
/**
* Menu for login
*
* If we're in openidOnly mode, we disable the menu for all other login.
*
* @param Action &$action Action being executed
*
* @return boolean hook return
*/
function onStartLoginGroupNav(&$action)
{
if (common_config('site', 'openidonly')) {
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$this->showOpenIDLoginTab($action);
// Even though we replace this code, we
// DON'T run the End* hook, to keep others from
// adding tabs. Not nice, but.
return false;
}
return true;
}
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/**
* Menu item for login
*
* @param Action &$action Action being executed
*
* @return boolean hook return
*/
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function onEndLoginGroupNav(&$action)
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{
$this->showOpenIDLoginTab($action);
return true;
}
/**
* Show menu item for login
*
* @param Action $action Action being executed
*
* @return void
*/
function showOpenIDLoginTab($action)
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{
$action_name = $action->trimmed('action');
$action->menuItem(common_local_url('openidlogin'),
// TRANS: OpenID plugin menu item on site logon page.
_m('MENU', 'OpenID'),
// TRANS: OpenID plugin tooltip for logon menu item.
_m('Login or register with OpenID'),
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$action_name === 'openidlogin');
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}
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/**
* Show menu item for password
*
* We hide it in openID-only mode
*
* @param Action $menu Widget for menu
* @param void &$unused Unused value
*
* @return void
*/
function onStartAccountSettingsPasswordMenuItem($menu, &$unused) {
if (common_config('site', 'openidonly')) {
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return false;
}
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return true;
}
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/**
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* Menu item for OpenID settings
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*
* @param Action &$action Action being executed
*
* @return boolean hook return
*/
function onEndAccountSettingsNav(&$action)
{
$action_name = $action->trimmed('action');
$action->menuItem(common_local_url('openidsettings'),
// TRANS: OpenID plugin menu item on user settings page.
_m('MENU', 'OpenID'),
// TRANS: OpenID plugin tooltip for user settings menu item.
_m('Add or remove OpenIDs'),
$action_name === 'openidsettings');
return true;
}
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/**
* Autoloader
*
* Loads our classes if they're requested.
*
* @param string $cls Class requested
*
* @return boolean hook return
*/
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function onAutoload($cls)
{
switch ($cls)
{
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case 'OpenidloginAction':
case 'FinishopenidloginAction':
case 'FinishaddopenidAction':
case 'XrdsAction':
case 'PublicxrdsAction':
case 'OpenidsettingsAction':
case 'OpenidserverAction':
case 'OpenidtrustAction':
case 'OpenidadminpanelAction':
require_once dirname(__FILE__) . '/' . strtolower(mb_substr($cls, 0, -6)) . '.php';
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return false;
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case 'User_openid':
require_once dirname(__FILE__) . '/User_openid.php';
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return false;
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case 'User_openid_trustroot':
require_once dirname(__FILE__) . '/User_openid_trustroot.php';
return false;
case 'Auth_OpenID_TeamsExtension':
case 'Auth_OpenID_TeamsRequest':
case 'Auth_OpenID_TeamsResponse':
require_once dirname(__FILE__) . '/extlib/teams-extension.php';
return false;
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default:
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return true;
}
}
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/**
* Sensitive actions
*
* These actions should use https when SSL support is 'sometimes'
*
* @param Action $action Action to form an URL for
* @param boolean &$ssl Whether to mark it for SSL
*
* @return boolean hook return
*/
function onSensitiveAction($action, &$ssl)
{
switch ($action)
{
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case 'finishopenidlogin':
case 'finishaddopenid':
$ssl = true;
return false;
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default:
return true;
}
}
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/**
* Login actions
*
* These actions should be visible even when the site is marked private
*
* @param Action $action Action to show
* @param boolean &$login Whether it's a login action
*
* @return boolean hook return
*/
function onLoginAction($action, &$login)
{
switch ($action)
{
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case 'openidlogin':
case 'finishopenidlogin':
case 'openidserver':
$login = true;
return false;
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default:
return true;
}
}
/**
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* We include a <meta> element linking to the userxrds page, for OpenID
* client-side authentication.
*
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* @param Action $action Action being shown
*
* @return void
*/
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function onEndShowHeadElements($action)
{
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if ($action instanceof ShowstreamAction) {
$action->element('link', array('rel' => 'openid2.provider',
'href' => common_local_url('openidserver')));
$action->element('link', array('rel' => 'openid2.local_id',
'href' => $action->profile->profileurl));
$action->element('link', array('rel' => 'openid.server',
'href' => common_local_url('openidserver')));
$action->element('link', array('rel' => 'openid.delegate',
'href' => $action->profile->profileurl));
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}
return true;
}
/**
* Redirect to OpenID login if they have an OpenID
*
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* @param Action $action Action being executed
* @param User $user User doing the action
*
* @return boolean whether to continue
*/
function onRedirectToLogin($action, $user)
{
if (common_config('site', 'openid_only') || (!empty($user) && User_openid::hasOpenID($user->id))) {
common_redirect(common_local_url('openidlogin'), 303);
return false;
}
return true;
}
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/**
* Show some extra instructions for using OpenID
*
* @param Action $action Action being executed
*
* @return boolean hook value
*/
function onEndShowPageNotice($action)
{
$name = $action->trimmed('action');
switch ($name)
{
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case 'register':
if (common_logged_in()) {
$instr = '(Have an [OpenID](http://openid.net/)? ' .
'[Add an OpenID to your account](%%action.openidsettings%%)!';
} else {
$instr = '(Have an [OpenID](http://openid.net/)? ' .
'Try our [OpenID registration]'.
'(%%action.openidlogin%%)!)';
}
break;
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case 'login':
$instr = '(Have an [OpenID](http://openid.net/)? ' .
'Try our [OpenID login]'.
'(%%action.openidlogin%%)!)';
break;
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default:
return true;
}
$output = common_markup_to_html($instr);
$action->raw($output);
return true;
}
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/**
* Load our document if requested
*
* @param string &$title Title to fetch
* @param string &$output HTML to output
*
* @return boolean hook value
*/
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function onStartLoadDoc(&$title, &$output)
{
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if ($title == 'openid') {
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$filename = INSTALLDIR.'/plugins/OpenID/doc-src/openid';
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$c = file_get_contents($filename);
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$output = common_markup_to_html($c);
return false; // success!
}
return true;
}
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/**
* Add our document to the global menu
*
* @param string $title Title being fetched
* @param string &$output HTML being output
*
* @return boolean hook value
*/
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function onEndLoadDoc($title, &$output)
{
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if ($title == 'help') {
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$menuitem = '* [OpenID](%%doc.openid%%) - what OpenID is and how to use it with this service';
$output .= common_markup_to_html($menuitem);
}
return true;
}
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/**
* Data definitions
*
* Assure that our data objects are available in the DB
*
* @return boolean hook value
*/
function onCheckSchema()
{
$schema = Schema::get();
$schema->ensureTable('user_openid',
array(new ColumnDef('canonical', 'varchar',
'255', false, 'PRI'),
new ColumnDef('display', 'varchar',
'255', false, 'UNI'),
new ColumnDef('user_id', 'integer',
null, false, 'MUL'),
new ColumnDef('created', 'datetime',
null, false),
new ColumnDef('modified', 'timestamp')));
$schema->ensureTable('user_openid_trustroot',
array(new ColumnDef('trustroot', 'varchar',
'255', false, 'PRI'),
new ColumnDef('user_id', 'integer',
null, false, 'PRI'),
new ColumnDef('created', 'datetime',
null, false),
new ColumnDef('modified', 'timestamp')));
return true;
}
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/**
* Add our tables to be deleted when a user is deleted
*
* @param User $user User being deleted
* @param array &$tables Array of table names
*
* @return boolean hook value
*/
function onUserDeleteRelated($user, &$tables)
{
$tables[] = 'User_openid';
$tables[] = 'User_openid_trustroot';
return true;
}
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/**
* Add an OpenID tab to the admin panel
*
* @param Widget $nav Admin panel nav
*
* @return boolean hook value
*/
function onEndAdminPanelNav($nav)
{
if (AdminPanelAction::canAdmin('openid')) {
$action_name = $nav->action->trimmed('action');
$nav->out->menuItem(
common_local_url('openidadminpanel'),
// TRANS: OpenID configuration menu item.
_m('MENU','OpenID'),
// TRANS: Tooltip for OpenID configuration menu item.
_m('OpenID configuration'),
$action_name == 'openidadminpanel',
'nav_openid_admin_panel'
);
}
return true;
}
/**
* Add OpenID information to the Account Management Control Document
* Event supplied by the Account Manager plugin
*
* @param array &$amcd Array that expresses the AMCD
*
* @return boolean hook value
*/
function onEndAccountManagementControlDocument(&$amcd)
{
$amcd['auth-methods']['openid'] = array(
'connect' => array(
'method' => 'POST',
'path' => common_local_url('openidlogin'),
'params' => array(
'identity' => 'openid_url'
)
)
);
}
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/**
* Add our version information to output
*
* @param array &$versions Array of version-data arrays
*
* @return boolean hook value
*/
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function onPluginVersion(&$versions)
{
$versions[] = array('name' => 'OpenID',
'version' => STATUSNET_VERSION,
'author' => 'Evan Prodromou, Craig Andrews',
'homepage' => 'http://status.net/wiki/Plugin:OpenID',
'rawdescription' =>
// TRANS: OpenID plugin description.
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_m('Use <a href="http://openid.net/">OpenID</a> to login to the site.'));
return true;
}
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function onStartOAuthLoginForm($action, &$button)
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{
if (common_config('site', 'openidonly')) {
// Cancel the regular password login form, we won't need it.
$this->showOAuthLoginForm($action);
// TRANS: button label for OAuth authorization page when needing OpenID authentication first.
$button = _m('BUTTON', 'Continue');
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return false;
} else {
// Leave the regular password login form in place.
// We'll add an OpenID link at bottom...?
return true;
}
}
/**
* @fixme merge with common code for main OpenID login form
* @param HTMLOutputter $action
*/
protected function showOAuthLoginForm($action)
{
$action->elementStart('fieldset');
// TRANS: OpenID plugin logon form legend.
$action->element('legend', null, _m('OpenID login'));
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$action->elementStart('ul', 'form_data');
$action->elementStart('li');
$provider = common_config('openid', 'trusted_provider');
$appendUsername = common_config('openid', 'append_username');
if ($provider) {
// TRANS: Field label.
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$action->element('label', array(), _m('OpenID provider'));
$action->element('span', array(), $provider);
if ($appendUsername) {
$action->element('input', array('id' => 'openid_username',
'name' => 'openid_username',
'style' => 'float: none'));
}
$action->element('p', 'form_guide',
// TRANS: Form guide.
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($appendUsername ? _m('Enter your username.') . ' ' : '') .
// TRANS: Form guide.
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_m('You will be sent to the provider\'s site for authentication.'));
$action->hidden('openid_url', $provider);
} else {
// TRANS: OpenID plugin logon form field label.
$action->input('openid_url', _m('OpenID URL'),
'',
// TRANS: OpenID plugin logon form field instructions.
_m('Your OpenID URL'));
}
$action->elementEnd('li');
$action->elementEnd('ul');
$action->elementEnd('fieldset');
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}
/**
* Handle a POST user credential check in apioauthauthorization.
* If given an OpenID URL, we'll pass us over to the regular things
* and then redirect back here on completion.
*
* @fixme merge with common code for main OpenID login form
* @param HTMLOutputter $action
*/
function onStartOAuthLoginCheck($action, &$user)
{
$provider = common_config('openid', 'trusted_provider');
if ($provider) {
$openid_url = $provider;
if (common_config('openid', 'append_username')) {
$openid_url .= $action->trimmed('openid_username');
}
} else {
$openid_url = $action->trimmed('openid_url');
}
if ($openid_url) {
require_once dirname(__FILE__) . '/openid.php';
oid_assert_allowed($openid_url);
$returnto = common_local_url(
'ApiOauthAuthorize',
array(),
array(
'oauth_token' => $action->arg('oauth_token'),
'mode' => $action->arg('mode')
)
);
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common_set_returnto($returnto);
// This will redirect if functional...
$result = oid_authenticate($openid_url,
'finishopenidlogin');
if (is_string($result)) { # error message
throw new ServerException($result);
} else {
exit(0);
}
}
return true;
}
}