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phorge/src/applications/auth/controller/PhabricatorAuthOneTimeLoginController.php
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PhabricatorAuthOneTimeLoginController.php
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<?php
final class PhabricatorAuthOneTimeLoginController
extends PhabricatorAuthController {
private $id;
private $key;
private $emailID;
private $linkType;
public function shouldRequireLogin() {
return false;
}
public function willProcessRequest(array $data) {
$this->linkType = $data['type'];
$this->id = $data['id'];
$this->key = $data['key'];
$this->emailID = idx($data, 'emailID');
}
public function processRequest() {
$request = $this->getRequest();
if ($request->getUser()->isLoggedIn()) {
return $this->renderError(
pht('You are already logged in.'));
}
$target_user = id(new PhabricatorPeopleQuery())
->setViewer(PhabricatorUser::getOmnipotentUser())
->withIDs(array($this->id))
->executeOne();
if (!$target_user) {
return new Aphront404Response();
}
// NOTE: As a convenience to users, these one-time login URIs may also
// be associated with an email address which will be verified when the
// URI is used.
// This improves the new user experience for users receiving "Welcome"
// emails on installs that require verification: if we did not verify the
// email, they'd immediately get roadblocked with a "Verify Your Email"
// error and have to go back to their email account, wait for a
// "Verification" email, and then click that link to actually get access to
// their account. This is hugely unwieldy, and if the link was only sent
// to the user's email in the first place we can safely verify it as a
// side effect of login.
// The email hashed into the URI so users can't verify some email they
// do not own by doing this:
//
// - Add some address you do not own;
// - request a password reset;
// - change the URI in the email to the address you don't own;
// - login via the email link; and
// - get a "verified" address you don't control.
$target_email = null;
if ($this->emailID) {
$target_email = id(new PhabricatorUserEmail())->loadOneWhere(
'userPHID = %s AND id = %d',
$target_user->getPHID(),
$this->emailID);
if (!$target_email) {
return new Aphront404Response();
}
}
$engine = new PhabricatorAuthSessionEngine();
$token = $engine->loadOneTimeLoginKey(
$target_user,
$target_email,
$this->key);
if (!$token) {
return $this->newDialog()
->setTitle(pht('Unable to Login'))
->setShortTitle(pht('Login Failure'))
->appendParagraph(
pht(
'The login link you clicked is invalid, out of date, or has '.
'already been used.'))
->appendParagraph(
pht(
'Make sure you are copy-and-pasting the entire link into '.
'your browser. Login links are only valid for 24 hours, and '.
'can only be used once.'))
->appendParagraph(
pht('You can try again, or request a new link via email.'))
->addCancelButton('/login/email/', pht('Send Another Email'));
}
if ($request->isFormPost()) {
// If we have an email bound into this URI, verify email so that clicking
// the link in the "Welcome" email is good enough, without requiring users
// to go through a second round of email verification.
$unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
// Nuke the token so that this URI is one-time only.
$token->delete();
if ($target_email) {
id(new PhabricatorUserEditor())
->setActor($target_user)
->verifyEmail($target_user, $target_email);
}
unset($unguarded);
$next = '/';
if (!PhabricatorPasswordAuthProvider::getPasswordProvider()) {
$next = '/settings/panel/external/';
} else if (PhabricatorEnv::getEnvConfig('account.editable')) {
// We're going to let the user reset their password without knowing
// the old one. Generate a one-time token for that.
$key = Filesystem::readRandomCharacters(16);
$unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
id(new PhabricatorAuthTemporaryToken())
->setObjectPHID($target_user->getPHID())
->setTokenType(
PhabricatorAuthSessionEngine::PASSWORD_TEMPORARY_TOKEN_TYPE)
->setTokenExpires(time() + phutil_units('1 hour in seconds'))
->setTokenCode(PhabricatorHash::digest($key))
->save();
unset($unguarded);
$next = (string)id(new PhutilURI('/settings/panel/password/'))
->setQueryParams(
array(
'key' => $key,
));
$request->setTemporaryCookie(PhabricatorCookies::COOKIE_HISEC, 'yes');
}
PhabricatorCookies::setNextURICookie($request, $next, $force = true);
return $this->loginUser($target_user);
}
// NOTE: We need to CSRF here so attackers can't generate an email link,
// then log a user in to an account they control via sneaky invisible
// form submissions.
switch ($this->linkType) {
case PhabricatorAuthSessionEngine::ONETIME_WELCOME:
$title = pht('Welcome to Phabricator');
break;
case PhabricatorAuthSessionEngine::ONETIME_RECOVER:
$title = pht('Account Recovery');
break;
case PhabricatorAuthSessionEngine::ONETIME_USERNAME:
case PhabricatorAuthSessionEngine::ONETIME_RESET:
default:
$title = pht('Login to Phabricator');
break;
}
$body = array();
$body[] = pht(
'Use the button below to log in as: %s',
phutil_tag('strong', array(), $target_user->getUsername()));
if ($target_email && !$target_email->getIsVerified()) {
$body[] = pht(
'Logging in will verify %s as an email address you own.',
phutil_tag('strong', array(), $target_email->getAddress()));
}
$body[] = pht(
'After logging in you should set a password for your account, or '.
'link your account to an external account that you can use to '.
'authenticate in the future.');
$dialog = $this->newDialog()
->setTitle($title)
->addSubmitButton(pht('Login (%s)', $target_user->getUsername()))
->addCancelButton('/');
foreach ($body as $paragraph) {
$dialog->appendParagraph($paragraph);
}
return id(new AphrontDialogResponse())->setDialog($dialog);
}
}

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