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PhabricatorAuthInviteEngine.php
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Thu, Jan 9, 13:32

PhabricatorAuthInviteEngine.php
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<?php
/**
* This class does an unusual amount of flow control via exceptions. The intent
* is to make the workflows highly testable, because this code is high-stakes
* and difficult to test.
*/
final class PhabricatorAuthInviteEngine extends Phobject {
private $viewer;
private $userHasConfirmedVerify;
public function setViewer(PhabricatorUser $viewer) {
$this->viewer = $viewer;
return $this;
}
public function getViewer() {
if (!$this->viewer) {
throw new PhutilInvalidStateException('setViewer');
}
return $this->viewer;
}
public function setUserHasConfirmedVerify($confirmed) {
$this->userHasConfirmedVerify = $confirmed;
return $this;
}
private function shouldVerify() {
return $this->userHasConfirmedVerify;
}
public function processInviteCode($code) {
$viewer = $this->getViewer();
$invite = id(new PhabricatorAuthInviteQuery())
->setViewer($viewer)
->withVerificationCodes(array($code))
->executeOne();
if (!$invite) {
throw id(new PhabricatorAuthInviteInvalidException(
pht('Bad Invite Code'),
pht(
'The invite code in the link you clicked is invalid. Check that '.
'you followed the link correctly.')))
->setCancelButtonURI('/')
->setCancelButtonText(pht('Curses!'));
}
$accepted_phid = $invite->getAcceptedByPHID();
if ($accepted_phid) {
if ($accepted_phid == $viewer->getPHID()) {
throw id(new PhabricatorAuthInviteInvalidException(
pht('Already Accepted'),
pht(
'You have already accepted this invitation.')))
->setCancelButtonURI('/')
->setCancelButtonText(pht('Awesome'));
} else {
throw id(new PhabricatorAuthInviteInvalidException(
pht('Already Accepted'),
pht(
'The invite code in the link you clicked has already '.
'been accepted.')))
->setCancelButtonURI('/')
->setCancelButtonText(pht('Continue'));
}
}
$email = id(new PhabricatorUserEmail())->loadOneWhere(
'address = %s',
$invite->getEmailAddress());
if ($viewer->isLoggedIn()) {
$this->handleLoggedInInvite($invite, $viewer, $email);
}
if ($email) {
$other_user = $this->loadUserForEmail($email);
if ($email->getIsVerified()) {
throw id(new PhabricatorAuthInviteLoginException(
pht('Already Registered'),
pht(
'The email address you just clicked a link from is already '.
'verified and associated with a registered account (%s). Log '.
'in to continue.',
phutil_tag('strong', array(), $other_user->getName()))))
->setCancelButtonText(pht('Log In'))
->setCancelButtonURI($this->getLoginURI());
} else if ($email->getIsPrimary()) {
throw id(new PhabricatorAuthInviteLoginException(
pht('Already Registered'),
pht(
'The email address you just clicked a link from is already '.
'the primary email address for a registered account (%s). Log '.
'in to continue.',
phutil_tag('strong', array(), $other_user->getName()))))
->setCancelButtonText(pht('Log In'))
->setCancelButtonURI($this->getLoginURI());
} else if (!$this->shouldVerify()) {
throw id(new PhabricatorAuthInviteVerifyException(
pht('Already Associated'),
pht(
'The email address you just clicked a link from is already '.
'associated with a registered account (%s), but is not '.
'verified. Log in to that account to continue. If you can not '.
'log in, you can register a new account.',
phutil_tag('strong', array(), $other_user->getName()))))
->setCancelButtonText(pht('Log In'))
->setCancelButtonURI($this->getLoginURI())
->setSubmitButtonText(pht('Register New Account'));
} else {
// NOTE: The address is not verified and not a primary address, so
// we will eventually steal it if the user completes registration.
}
}
// The invite and email address are OK, but the user needs to register.
return $invite;
}
private function handleLoggedInInvite(
PhabricatorAuthInvite $invite,
PhabricatorUser $viewer,
PhabricatorUserEmail $email = null) {
if ($email && ($email->getUserPHID() !== $viewer->getPHID())) {
$other_user = $this->loadUserForEmail($email);
if ($email->getIsVerified()) {
throw id(new PhabricatorAuthInviteAccountException(
pht('Wrong Account'),
pht(
'You are logged in as %s, but the email address you just '.
'clicked a link from is already verified and associated '.
'with another account (%s). Switch accounts, then try again.',
phutil_tag('strong', array(), $viewer->getUsername()),
phutil_tag('strong', array(), $other_user->getName()))))
->setSubmitButtonText(pht('Log Out'))
->setSubmitButtonURI($this->getLogoutURI())
->setCancelButtonURI('/');
} else if ($email->getIsPrimary()) {
// NOTE: We never steal primary addresses from other accounts, even
// if they are unverified. This would leave the other account with
// no address. Users can use password recovery to access the other
// account if they really control the address.
throw id(new PhabricatorAuthInviteAccountException(
pht('Wrong Acount'),
pht(
'You are logged in as %s, but the email address you just '.
'clicked a link from is already the primary email address '.
'for another account (%s). Switch accounts, then try again.',
phutil_tag('strong', array(), $viewer->getUsername()),
phutil_tag('strong', array(), $other_user->getName()))))
->setSubmitButtonText(pht('Log Out'))
->setSubmitButtonURI($this->getLogoutURI())
->setCancelButtonURI('/');
} else if (!$this->shouldVerify()) {
throw id(new PhabricatorAuthInviteVerifyException(
pht('Verify Email'),
pht(
'You are logged in as %s, but the email address (%s) you just '.
'clicked a link from is already associated with another '.
'account (%s). You can log out to switch accounts, or verify '.
'the address and attach it to your current account. Attach '.
'email address %s to user account %s?',
phutil_tag('strong', array(), $viewer->getUsername()),
phutil_tag('strong', array(), $invite->getEmailAddress()),
phutil_tag('strong', array(), $other_user->getName()),
phutil_tag('strong', array(), $invite->getEmailAddress()),
phutil_tag('strong', array(), $viewer->getUsername()))))
->setSubmitButtonText(
pht(
'Verify %s',
$invite->getEmailAddress()))
->setCancelButtonText(pht('Log Out'))
->setCancelButtonURI($this->getLogoutURI());
}
}
if (!$email) {
$email = id(new PhabricatorUserEmail())
->setAddress($invite->getEmailAddress())
->setIsVerified(0)
->setIsPrimary(0);
}
if (!$email->getIsVerified()) {
// We're doing this check here so that we can verify the address if
// it's already attached to the viewer's account, just not verified.
if (!$this->shouldVerify()) {
throw id(new PhabricatorAuthInviteVerifyException(
pht('Verify Email'),
pht(
'Verify this email address (%s) and attach it to your '.
'account (%s)?',
phutil_tag('strong', array(), $invite->getEmailAddress()),
phutil_tag('strong', array(), $viewer->getUsername()))))
->setSubmitButtonText(
pht(
'Verify %s',
$invite->getEmailAddress()))
->setCancelButtonURI('/');
}
$editor = id(new PhabricatorUserEditor())
->setActor($viewer);
// If this is a new email, add it to the user's account.
if (!$email->getUserPHID()) {
$editor->addEmail($viewer, $email);
}
// If another user added this email (but has not verified it),
// take it from them.
$editor->reassignEmail($viewer, $email);
$editor->verifyEmail($viewer, $email);
}
$invite->setAcceptedByPHID($viewer->getPHID());
$invite->save();
// If we make it here, the user was already logged in with the email
// address attached to their account and verified, or we attached it to
// their account (if it was not already attached) and verified it.
throw new PhabricatorAuthInviteRegisteredException();
}
private function loadUserForEmail(PhabricatorUserEmail $email) {
$user = id(new PhabricatorHandleQuery())
->setViewer(PhabricatorUser::getOmnipotentUser())
->withPHIDs(array($email->getUserPHID()))
->executeOne();
if (!$user) {
throw new Exception(
pht(
'Email record ("%s") has bad associated user PHID ("%s").',
$email->getAddress(),
$email->getUserPHID()));
}
return $user;
}
private function getLoginURI() {
return '/auth/start/';
}
private function getLogoutURI() {
return '/logout/';
}
}

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