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<?php
/**
* Log-in form for the "member" authentication method
* @package framework
* @subpackage security
*/
class MemberLoginForm extends LoginForm {
/**
* This field is used in the "You are logged in as %s" message
* @var string
*/
public $loggedInAsField = 'FirstName';
protected $authenticator_class = 'MemberAuthenticator';
/**
* Constructor
*
* @param Controller $controller The parent controller, necessary to
* create the appropriate form action tag.
* @param string $name The method on the controller that will return this
* form object.
* @param FieldList|FormField $fields All of the fields in the form - a
* {@link FieldList} of {@link FormField}
* objects.
* @param FieldList|FormAction $actions All of the action buttons in the
* form - a {@link FieldList} of
* {@link FormAction} objects
* @param bool $checkCurrentUser If set to TRUE, it will be checked if a
* the user is currently logged in, and if
* so, only a logout button will be rendered
* @param string $authenticatorClassName Name of the authenticator class that this form uses.
*/
function __construct($controller, $name, $fields = null, $actions = null,
$checkCurrentUser = true) {
// This is now set on the class directly to make it easier to create subclasses
// $this->authenticator_class = $authenticatorClassName;
$customCSS = project() . '/css/member_login.css';
if(Director::fileExists($customCSS)) {
Requirements::css($customCSS);
}
if(isset($_REQUEST['BackURL'])) {
$backURL = $_REQUEST['BackURL'];
} else {
$backURL = Session::get('BackURL');
}
if($checkCurrentUser && Member::currentUser() && Member::logged_in_session_exists()) {
$fields = new FieldList(
new HiddenField("AuthenticationMethod", null, $this->authenticator_class, $this)
);
$actions = new FieldList(
new FormAction("logout", _t('Member.BUTTONLOGINOTHER', "Log in as someone else"))
);
} else {
if(!$fields) {
$label=singleton('Member')->fieldLabel(Member::get_unique_identifier_field());
$fields = new FieldList(
new HiddenField("AuthenticationMethod", null, $this->authenticator_class, $this),
//Regardless of what the unique identifer field is (usually 'Email'), it will be held in the 'Email' value, below:
new TextField("Email", $label, Session::get('SessionForms.MemberLoginForm.Email'), null, $this),
new PasswordField("Password", _t('Member.PASSWORD', 'Password'))
);
if(Security::$autologin_enabled) {
$fields->push(new CheckboxField(
"Remember",
_t('Member.REMEMBERME', "Remember me next time?")
));
}
}
if(!$actions) {
$actions = new FieldList(
new FormAction('dologin', _t('Member.BUTTONLOGIN', "Log in")),
new LiteralField(
'forgotPassword',
'<p id="ForgotPassword"><a href="Security/lostpassword">' . _t('Member.BUTTONLOSTPASSWORD', "I've lost my password") . '</a></p>'
)
);
}
}
if(isset($backURL)) {
$fields->push(new HiddenField('BackURL', 'BackURL', $backURL));
}
parent::__construct($controller, $name, $fields, $actions);
// Focus on the email input when the page is loaded
Requirements::customScript(<<<JS
(function() {
var el = document.getElementById("MemberLoginForm_LoginForm_Email");
if(el && el.focus) el.focus();
})();
JS
);
}
/**
* Get message from session
*/
protected function getMessageFromSession() {
parent::getMessageFromSession();
if(($member = Member::currentUser()) && !Session::get('MemberLoginForm.force_message')) {
$this->message = _t(
'Member.LOGGEDINAS',
"You're logged in as {name}.",
array('name' => $member->{$this->loggedInAsField})
);
}
Session::set('MemberLoginForm.force_message', false);
}
/**
* Login form handler method
*
* This method is called when the user clicks on "Log in"
*
* @param array $data Submitted data
*/
public function dologin($data) {
if($this->performLogin($data)) {
$this->logInUserAndRedirect($data);
} else {
if(array_key_exists('Email', $data)){
Session::set('SessionForms.MemberLoginForm.Email', $data['Email']);
Session::set('SessionForms.MemberLoginForm.Remember', isset($data['Remember']));
}
if(isset($_REQUEST['BackURL'])) $backURL = $_REQUEST['BackURL'];
else $backURL = null;
if($backURL) Session::set('BackURL', $backURL);
if($badLoginURL = Session::get("BadLoginURL")) {
$this->controller->redirect($badLoginURL);
} else {
// Show the right tab on failed login
$loginLink = Director::absoluteURL($this->controller->Link('login'));
if($backURL) $loginLink .= '?BackURL=' . urlencode($backURL);
$this->controller->redirect($loginLink . '#' . $this->FormName() .'_tab');
}
}
}
/**
* Login in the user and figure out where to redirect the browser.
*
* The $data has this format
* array(
* 'AuthenticationMethod' => 'MemberAuthenticator',
* 'Email' => 'sam@silverstripe.com',
* 'Password' => '1nitialPassword',
* 'BackURL' => 'test/link',
* [Optional: 'Remember' => 1 ]
* )
*
* @param array $data
* @return void
*/
protected function logInUserAndRedirect($data) {
Session::clear('SessionForms.MemberLoginForm.Email');
Session::clear('SessionForms.MemberLoginForm.Remember');
if(Member::currentUser()->isPasswordExpired()) {
if(isset($_REQUEST['BackURL']) && $backURL = $_REQUEST['BackURL']) {
Session::set('BackURL', $backURL);
}
$cp = new ChangePasswordForm($this->controller, 'ChangePasswordForm');
$cp->sessionMessage('Your password has expired. Please choose a new one.', 'good');
return $this->controller->redirect('Security/changepassword');
}
// Absolute redirection URLs may cause spoofing
if(isset($_REQUEST['BackURL']) && $_REQUEST['BackURL'] && Director::is_site_url($_REQUEST['BackURL']) ) {
return $this->controller->redirect($_REQUEST['BackURL']);
}
// Spoofing attack, redirect to homepage instead of spoofing url
if(isset($_REQUEST['BackURL']) && $_REQUEST['BackURL'] && !Director::is_site_url($_REQUEST['BackURL'])) {
return $this->controller->redirect(Director::absoluteBaseURL());
}
// If a default login dest has been set, redirect to that.
if (Security::default_login_dest()) {
return $this->controller->redirect(Director::absoluteBaseURL() . Security::default_login_dest());
}
// Redirect the user to the page where he came from
$member = Member::currentUser();
if($member) {
$firstname = Convert::raw2xml($member->FirstName);
if(!empty($data['Remember'])) {
Session::set('SessionForms.MemberLoginForm.Remember', '1');
$member->logIn(true);
} else {
$member->logIn();
}
Session::set('Security.Message.message',
_t('Member.WELCOMEBACK', "Welcome Back, {firstname}", array('firstname' => $firstname))
);
Session::set("Security.Message.type", "good");
}
Controller::curr()->redirectBack();
}
/**
* Log out form handler method
*
* This method is called when the user clicks on "logout" on the form
* created when the parameter <i>$checkCurrentUser</i> of the
* {@link __construct constructor} was set to TRUE and the user was
* currently logged in.
*/
public function logout() {
$s = new Security();
$s->logout();
}
/**
* Try to authenticate the user
*
* @param array Submitted data
* @return Member Returns the member object on successful authentication
* or NULL on failure.
*/
public function performLogin($data) {
$member = call_user_func_array(array($this->authenticator_class, 'authenticate'), array($data, $this));
if($member) {
$member->LogIn(isset($data['Remember']));
return $member;
} else {
$this->extend('authenticationFailed', $data);
return null;
}
}
/**
* Forgot password form handler method
*
* This method is called when the user clicks on "I've lost my password"
*
* @param array $data Submitted data
*/
function forgotPassword($data) {
$SQL_data = Convert::raw2sql($data);
$SQL_email = $SQL_data['Email'];
$member = DataObject::get_one('Member', "\"Email\" = '{$SQL_email}'");
if($member) {
$member->generateAutologinHash();
$member->sendInfo(
'forgotPassword',
array(
'PasswordResetLink' => Security::getPasswordResetLink($member->AutoLoginHash)
)
);
$this->controller->redirect('Security/passwordsent/' . urlencode($data['Email']));
} elseif($data['Email']) {
// Avoid information disclosure by displaying the same status,
// regardless wether the email address actually exists
$this->controller->redirect('Security/passwordsent/' . urlencode($data['Email']));
} else {
$this->sessionMessage(
_t('Member.ENTEREMAIL', 'Please enter an email address to get a password reset link.'),
'bad'
);
$this->controller->redirect('Security/lostpassword');
}
}
}
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