mirror of
https://github.com/EGroupware/egroupware.git
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323 lines
10 KiB
PHP
323 lines
10 KiB
PHP
<?php
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/**
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* EGroupware preferences: Security and passwords
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*
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* @package preferences
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* @link http://www.egroupware.org
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* @author Joseph Engo <jengo@phpgroupware.org>
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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*/
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use EGroupware\Api;
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use EGroupware\Api\Framework;
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use EGroupware\Api\Etemplate;
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use PragmaRX\Google2FAQRCode\Google2FA;
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use EGroupware\Api\Mail\Credentials;
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/**
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* Security and passwords
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*
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* Other apps can add tabs to this popup by implementing the "preferences_security" hook
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* like eg. the OpenID App does to allow users to revoke tokens.
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*/
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class preferences_password
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{
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var $public_functions = array(
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'change' => True
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);
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const GAUTH_ANDROID = 'https://play.google.com/store/apps/details?id=com.google.android.apps.authenticator2';
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const GAUTH_IOS = 'https://appstore.com/googleauthenticator';
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/**
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* Change password, two factor auth or revoke tokens
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*
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* @param type $content
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*/
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function change($content = null)
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{
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$GLOBALS['egw_info']['flags']['app_header'] = lang('Security & Password');
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$tmpl = new Etemplate('preferences.password');
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$readonlys = $sel_options = [];
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try {
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// PHP 7.1+: using SVG image backend (requiring XMLWriter) and not ImageMagic extension
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if (class_exists('BaconQrCode\Renderer\Image\SvgImageBackEnd'))
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{
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$image_backend = new \BaconQrCode\Renderer\Image\SvgImageBackEnd;
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}
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$google2fa = new Google2FA($image_backend);
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$prefs = new Api\Preferences($GLOBALS['egw_info']['user']['account_id']);
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$prefs->read_repository();
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if (!is_array($content))
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{
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$content = [];
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$content['2fa'] = $this->generateQRCode($google2fa)+[
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'gauth_android' => self::GAUTH_ANDROID,
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'gauth_ios' => self::GAUTH_IOS,
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];
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}
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else
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{
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$secret_key = $content['2fa']['secret_key'];
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unset($content['2fa']['secret_key']);
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// check user password for everything but password change, where it will be checked anyway
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$auth = new Api\Auth();
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if ($content['tabs'] !== 'change_password' &&
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!$auth->authenticate($GLOBALS['egw_info']['user']['account_lid'], $content['password']))
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{
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$tmpl->set_validation_error('password', lang('Password is invalid'));
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}
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else
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{
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switch($content['tabs'])
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{
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case 'change_password':
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if ($GLOBALS['egw']->acl->check('nopasswordchange', 1) && $content['button']['save'])
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{
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if (($errors = self::do_change($content['password'], $content['n_passwd'], $content['n_passwd_2'])))
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{
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Framework::message(implode("\n", $errors), 'error');
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}
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else
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{
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Framework::refresh_opener(lang('Password changed'), 'preferences');
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Framework::window_close();
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}
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}
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break;
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case 'two_factor_auth':
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switch(key($content['2fa']['action']))
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{
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case 'show':
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$content['2fa'] = $this->generateQRCode($google2fa, false);
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break;
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case 'reset':
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$content['2fa'] = $this->generateQRCode($google2fa, true);
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Framework::message(lang('New secret generated, you need to save it to disable the old one!'));
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break;
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case 'disable':
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if (Credentials::delete(0, $GLOBALS['egw_info']['user']['account_id'], Credentials::TWOFA))
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{
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Framework::refresh_opener(lang('Secret deleted, two factor authentication disabled.'), 'preferences');
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Framework::window_close();
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}
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else
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{
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Framework::message(lang('Failed to delete secret!'), 'error');
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}
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break;
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default: // no action, save secret
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if (!$google2fa->verifyKey($secret_key, $content['2fa']['code']))
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{
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$tmpl->set_validation_error('code', lang('Code is invalid'), '2fa');
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break 2;
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}
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if (($content['2fa']['cred_id'] = Credentials::write(0,
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$GLOBALS['egw_info']['user']['account_lid'],
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$secret_key, Credentials::TWOFA,
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$GLOBALS['egw_info']['user']['account_id'],
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$content['2fa']['cred_id'])))
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{
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Framework::refresh_opener(lang('Two Factor Auth enabled.'), 'preferences');
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Framework::window_close();
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}
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else
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{
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Framework::message(lang('Failed to store secret!'), 'error');
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}
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break;
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}
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unset($content['2fa']['action']);
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break;
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default:
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// for other tabs call their save_callback (user password is already checked!)
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if (!empty($content['save_callbacks'][$content['tabs']]) &&
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($msg = call_user_func_array($content['save_callbacks'][$content['tabs']], [&$content])))
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{
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Framework::message($msg, 'success');
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}
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break;
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}
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}
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}
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}
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catch (Exception $e) {
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Framework::message($e->getMessage(), 'error');
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}
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// disable 2FA tab, if admin disabled it
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if ($GLOBALS['egw_info']['server']['2fa_required'] === 'disabled')
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{
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$readonlys['tabs']['two_factor_auth'] = true;
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}
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// disable password change, if user has not right to change it
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if ($GLOBALS['egw']->acl->check('nopasswordchange', 1))
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{
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$readonlys['tabs']['change_password'] = true;
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}
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$preserve = [
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'2fa' => $content['2fa']+[
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'secret_key' => $secret_key,
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]
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];
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$tmpl->setElementAttribute('tabs', 'add_tabs', true);
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$tabs =& $tmpl->getElementAttribute('tabs', 'tabs');
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if (($first_call = !isset($tabs)))
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{
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$tabs = array();
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}
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// register hooks, if openid is available, but new hook not yet registered (should be removed after 19.1)
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if (!empty($GLOBALS['egw_info']['apps']['openid']) && !Api\Hooks::implemented('preferences_security'))
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{
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Api\Hooks::read(true);
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}
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$hook_data = Api\Hooks::process(array('location' => 'preferences_security')+$content, ['openid'], true);
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foreach($hook_data as $extra_tabs)
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{
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if (!$extra_tabs) continue;
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foreach(isset($extra_tabs[0]) ? $extra_tabs : [$extra_tabs] as $extra_tab)
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{
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if (!empty($extra_tab['data']) && is_array($extra_tab['data']))
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{
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$content = array_merge($content, $extra_tab['data']);
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}
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if (!empty($extra_tab['preserve']) && is_array($extra_tab['preserve']))
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{
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$preserve = array_merge($preserve, $extra_tab['preserve']);
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}
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if (!empty($extra_tab['sel_options']) && is_array($extra_tab['sel_options']))
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{
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$sel_options = array_merge($sel_options, $extra_tab['sel_options']);
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}
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if (!empty($extra_tab['readonlys']) && is_array($extra_tab['readonlys']))
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{
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$readonlys = array_merge($readonlys, $extra_tab['readonlys']);
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}
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if (!empty($extra_tab['save_callback']))
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{
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$preserve['save_callbacks'][$extra_tab['name']] = $extra_tab['save_callback'];
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}
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// we must NOT add tabs more then once!
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if ($first_call && !empty($extra_tab['label']) && !empty($extra_tab['name']))
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{
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$tabs[] = array(
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'label' => $extra_tab['label'],
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'template' => $extra_tab['name'],
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'prepend' => $extra_tab['prepend'],
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);
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}
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//error_log(__METHOD__."() changed tabs=".array2string($tabs));
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}
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}
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$tmpl->exec('preferences.preferences_password.change', $content, $sel_options, $readonlys, $preserve, 2);
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}
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/**
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* Generate QRCode and optional new secret
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*
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* @param Google2FA $google2fa
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* @param boolean|null $generate =null null: generate new qrCode/secret, if none exists
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* true: allways generate new qrCode (to reset existing one)
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* false: use existing secret, but generate qrCode
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* @return array with keys "qrc" and "cred_id"
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*/
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protected function generateQRCode(Google2FA $google2fa, $generate=null)
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{
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$creds = Credentials::read(0, Credentials::TWOFA, $GLOBALS['egw_info']['user']['account_id']);
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if (!$generate && $creds && strlen($creds['2fa_password']) >= 16)
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{
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$secret_key = $creds['2fa_password'];
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}
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else
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{
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$secret_key = $google2fa->generateSecretKey();//16, $GLOBALS['egw_info']['user']['account_lid']);
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}
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if (isset($generate) || empty($creds))
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{
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$image = $google2fa->getQRCodeInline(
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!empty($GLOBALS['egw_info']['server']['site_title']) ?
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$GLOBALS['egw_info']['server']['site_title'] : 'EGroupware',
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$GLOBALS['egw_info']['user']['account_email'],
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$secret_key
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);
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// bacon/bacon-qr-code >= 2 does not generate a data-url itself, but 1.x does :(
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if (substr($image, 0, 11) !== 'data:image/')
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{
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$image = 'data:image/'.(substr($image, 0, 5) === '<?xml' ? 'svg+xml' : 'png').
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';base64,'.base64_encode($image);
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}
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}
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return [
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'qrc' => $image,
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'hide_qrc' => empty($image),
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'cred_id' => !empty($creds) ? $creds['2fa_cred_id'] : null,
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'secret_key' => $secret_key,
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'status' => !empty($creds) ? lang('Two Factor Auth is already setup.') : '',
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];
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}
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/**
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* Do some basic checks and then change password
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*
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* @param string $old_passwd
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* @param string $new_passwd
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* @param string $new_passwd2
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* @return array with already translated errors
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*/
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public static function do_change($old_passwd, $new_passwd, $new_passwd2)
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{
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if ($GLOBALS['egw_info']['flags']['currentapp'] != 'preferences')
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{
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Api\Translation::add_app('preferences');
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}
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$errors = array();
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if (isset($GLOBALS['egw_info']['user']['passwd']) &&
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$old_passwd !== $GLOBALS['egw_info']['user']['passwd'])
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{
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$errors[] = lang('The old password is not correct');
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}
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if ($new_passwd != $new_passwd2)
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{
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$errors[] = lang('The two passwords are not the same');
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}
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if ($old_passwd !== false && $old_passwd == $new_passwd)
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{
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$errors[] = lang('Old password and new password are the same. This is invalid. You must enter a new password');
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}
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if (!$new_passwd)
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{
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$errors[] = lang('You must enter a password');
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}
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// allow auth backends or configured password strenght to throw exceptions and display there message
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if (!$errors)
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{
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try {
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if (!$GLOBALS['egw']->auth->change_password($old_passwd, $new_passwd,
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$GLOBALS['egw']->session->account_id))
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{
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// if we have no specific error, add general message
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$errors[] = lang('Failed to change password.');
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}
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}
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catch (Exception $e) {
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$errors[] = $e->getMessage();
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}
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}
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return $errors;
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}
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}
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