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<?php
/**
* Secondary authentication provider interface
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup Auth
*/
namespace MediaWiki\Auth;
use MediaWiki\User\User;
use StatusValue;
/**
* A secondary provider mostly acts when the submitted authentication data has
* already been associated to a MediaWiki user account.
*
* For login, a secondary provider performs additional authentication steps
* after a PrimaryAuthenticationProvider has identified which MediaWiki user is
* trying to log in. For example, it might implement a password reset, request
* the second factor for two-factor auth, or prevent the login if the account is blocked.
*
* For account creation, a secondary provider performs optional extra steps after
* a PrimaryAuthenticationProvider has created the user; for example, it can collect
* further user information such as a biography.
*
* (For account linking, secondary providers are not involved.)
*
* This interface also provides methods for changing authentication data such
* as a second-factor token, and callbacks that are invoked after login / account creation
* succeeded or failed.
*
* @ingroup Auth
* @since 1.27
* @see https://www.mediawiki.org/wiki/Manual:SessionManager_and_AuthManager
*/
interface SecondaryAuthenticationProvider extends AuthenticationProvider {
/**
* Start an authentication flow
*
* Note that this may be called for a user even if
* beginSecondaryAccountCreation() was never called. The module should take
* the opportunity to do any necessary setup in that case.
*
* @param User $user User being authenticated. This may become a
* "UserValue" in the future, or User may be refactored into such.
* @param AuthenticationRequest[] $reqs
* @return AuthenticationResponse Expected responses:
* - PASS: The user is authenticated. Additional secondary providers may run.
* - FAIL: The user is not authenticated. Fail the authentication process.
* - ABSTAIN: Additional secondary providers may run.
* - UI: Additional AuthenticationRequests are needed to complete the process.
* - REDIRECT: Redirection to a third party is needed to complete the process.
*/
public function beginSecondaryAuthentication( $user, array $reqs );
/**
* Continue an authentication flow
* @param User $user User being authenticated. This may become a
* "UserValue" in the future, or User may be refactored into such.
* @param AuthenticationRequest[] $reqs
* @return AuthenticationResponse Expected responses:
* - PASS: The user is authenticated. Additional secondary providers may run.
* - FAIL: The user is not authenticated. Fail the authentication process.
* - ABSTAIN: Additional secondary providers may run.
* - UI: Additional AuthenticationRequests are needed to complete the process.
* - REDIRECT: Redirection to a third party is needed to complete the process.
*/
public function continueSecondaryAuthentication( $user, array $reqs );
/**
* Post-login callback
*
* This will be called at the end of a login attempt. It will not be called for unfinished
* login attempts that fail by the session timing out.
*
* @param User|null $user User that was attempted to be logged in, if known.
* This may become a "UserValue" in the future, or User may be refactored
* into such.
* @param AuthenticationResponse $response Authentication response that will be returned
* (PASS or FAIL)
*/
public function postAuthentication( $user, AuthenticationResponse $response );
/**
* Revoke the user's credentials
*
* This may cause the user to no longer exist for the provider, or the user
* may continue to exist in a "disabled" state.
*
* The intention is that the named account will never again be usable for
* normal login (i.e. there is no way to undo the revocation of access).
*
* @param string $username
*/
public function providerRevokeAccessForUser( $username );
/**
* Determine whether a property can change
* @see AuthManager::allowsPropertyChange()
* @param string $property
* @return bool
*/
public function providerAllowsPropertyChange( $property );
/**
* Validate a change of authentication data (e.g. passwords)
*
* Return StatusValue::newGood( 'ignored' ) if you don't support this
* AuthenticationRequest type.
*
* @param AuthenticationRequest $req
* @param bool $checkData If false, $req hasn't been loaded from the
* submission so checks on user-submitted fields should be skipped.
* $req->username is considered user-submitted for this purpose, even
* if it cannot be changed via $req->loadFromSubmission.
* @return StatusValue
*/
public function providerAllowsAuthenticationDataChange(
AuthenticationRequest $req, $checkData = true
);
/**
* Change or remove authentication data (e.g. passwords)
*
* If $req was returned for AuthManager::ACTION_CHANGE, the corresponding
* credentials should result in a successful login in the future.
*
* If $req was returned for AuthManager::ACTION_REMOVE, the corresponding
* credentials should no longer result in a successful login.
*
* It can be assumed that providerAllowsAuthenticationDataChange with $checkData === true
* was called before this, and passed. This method should never fail (other than throwing an
* exception).
*/
public function providerChangeAuthenticationData( AuthenticationRequest $req );
/**
* Determine whether an account creation may begin
*
* Called from AuthManager::beginAccountCreation()
*
* @note No need to test if the account exists, AuthManager checks that
* @param User $user User being created (not added to the database yet).
* This may become a "UserValue" in the future, or User may be refactored
* into such.
* @param User $creator User doing the creation. This may become a
* "UserValue" in the future, or User may be refactored into such.
* @param AuthenticationRequest[] $reqs
* @return StatusValue
*/
public function testForAccountCreation( $user, $creator, array $reqs );
/**
* Start an account creation flow
*
* @note There is no guarantee this will be called in a successful account
* creation process as the user can just abandon the process at any time
* after the primary provider has issued a PASS and still have a valid
* account. Be prepared to handle any database inconsistencies that result
* from this or continueSecondaryAccountCreation() not being called.
* @param User $user User being created (has been added to the database).
* This may become a "UserValue" in the future, or User may be refactored
* into such.
* @param User $creator User doing the creation. This may become a
* "UserValue" in the future, or User may be refactored into such.
* @param AuthenticationRequest[] $reqs
* @return AuthenticationResponse Expected responses:
* - PASS: The user creation is ok. Additional secondary providers may run.
* - ABSTAIN: Additional secondary providers may run.
* - UI: Additional AuthenticationRequests are needed to complete the process.
* - REDIRECT: Redirection to a third party is needed to complete the process.
*/
public function beginSecondaryAccountCreation( $user, $creator, array $reqs );
/**
* Continue an authentication flow
*
* @param User $user User being created (has been added to the database).
* This may become a "UserValue" in the future, or User may be refactored
* into such.
* @param User $creator User doing the creation. This may become a
* "UserValue" in the future, or User may be refactored into such.
* @param AuthenticationRequest[] $reqs
* @return AuthenticationResponse Expected responses:
* - PASS: The user creation is ok. Additional secondary providers may run.
* - ABSTAIN: Additional secondary providers may run.
* - UI: Additional AuthenticationRequests are needed to complete the process.
* - REDIRECT: Redirection to a third party is needed to complete the process.
*/
public function continueSecondaryAccountCreation( $user, $creator, array $reqs );
/**
* Post-creation callback
*
* This will be called at the end of an account creation attempt. It will not be called if
* the account creation process results in a session timeout (possibly after a successful
* user creation, while a secondary provider is waiting for a response).
*
* @param User $user User that was attempted to be created.
* This may become a "UserValue" in the future, or User may be refactored
* into such.
* @param User $creator User doing the creation. This may become a
* "UserValue" in the future, or User may be refactored into such.
* @param AuthenticationResponse $response Authentication response that will be returned
* (PASS or FAIL)
*/
public function postAccountCreation( $user, $creator, AuthenticationResponse $response );
/**
* Determine whether an account may be created
*
* @param User $user User being created (not added to the database yet).
* This may become a "UserValue" in the future, or User may be refactored
* into such.
* @param bool|string $autocreate False if this is not an auto-creation, or
* the source of the auto-creation passed to AuthManager::autoCreateUser().
* @param array $options
* - flags: (int) Bitfield of IDBAccessObject::READ_* constants, default IDBAccessObject::READ_NORMAL
* - creating: (bool) If false (or missing), this call is only testing if
* a user could be created. If set, this (non-autocreation) is for
* actually creating an account and will be followed by a call to
* testForAccountCreation(). In this case, the provider might return
* StatusValue::newGood() here and let the later call to
* testForAccountCreation() do a more thorough test.
* - canAlwaysAutocreate: (bool) If true the session provider is exempt from
* autocreate user permissions checks.
* @return StatusValue
*/
public function testUserForCreation( $user, $autocreate, array $options = [] );
/**
* Post-auto-creation callback
* @param User $user User being created (has been added to the database now).
* This may become a "UserValue" in the future, or User may be refactored
* into such.
* @param string $source The source of the auto-creation passed to
* AuthManager::autoCreateUser().
*/
public function autoCreatedAccount( $user, $source );
}