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| 1 | <?php |
| 2 | /** |
| 3 | * User password reset helper for MediaWiki. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License along |
| 16 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 18 | * http://www.gnu.org/copyleft/gpl.html |
| 19 | * |
| 20 | * @file |
| 21 | */ |
| 22 | |
| 23 | namespace MediaWiki\User; |
| 24 | |
| 25 | use LogicException; |
| 26 | use MapCacheLRU; |
| 27 | use MediaWiki\Auth\AuthManager; |
| 28 | use MediaWiki\Auth\TemporaryPasswordAuthenticationRequest; |
| 29 | use MediaWiki\Config\ServiceOptions; |
| 30 | use MediaWiki\Deferred\DeferredUpdates; |
| 31 | use MediaWiki\Deferred\SendPasswordResetEmailUpdate; |
| 32 | use MediaWiki\HookContainer\HookContainer; |
| 33 | use MediaWiki\HookContainer\HookRunner; |
| 34 | use MediaWiki\MainConfigNames; |
| 35 | use MediaWiki\Message\Message; |
| 36 | use MediaWiki\Parser\Sanitizer; |
| 37 | use MediaWiki\User\Options\UserOptionsLookup; |
| 38 | use Psr\Log\LoggerAwareInterface; |
| 39 | use Psr\Log\LoggerAwareTrait; |
| 40 | use Psr\Log\LoggerInterface; |
| 41 | use StatusValue; |
| 42 | |
| 43 | /** |
| 44 | * Helper class for the password reset functionality shared by the web UI and the API. |
| 45 | * |
| 46 | * Requires the TemporaryPasswordPrimaryAuthenticationProvider and the |
| 47 | * EmailNotificationSecondaryAuthenticationProvider (or something providing equivalent |
| 48 | * functionality) to be enabled. |
| 49 | */ |
| 50 | class PasswordReset implements LoggerAwareInterface { |
| 51 | use LoggerAwareTrait; |
| 52 | |
| 53 | private ServiceOptions $config; |
| 54 | private AuthManager $authManager; |
| 55 | private HookRunner $hookRunner; |
| 56 | private UserIdentityLookup $userIdentityLookup; |
| 57 | private UserFactory $userFactory; |
| 58 | private UserNameUtils $userNameUtils; |
| 59 | private UserOptionsLookup $userOptionsLookup; |
| 60 | |
| 61 | /** |
| 62 | * In-process cache for isAllowed lookups, by username. |
| 63 | * Contains a StatusValue object |
| 64 | * @var MapCacheLRU |
| 65 | */ |
| 66 | private $permissionCache; |
| 67 | |
| 68 | /** |
| 69 | * @internal For use by ServiceWiring |
| 70 | */ |
| 71 | public const CONSTRUCTOR_OPTIONS = [ |
| 72 | MainConfigNames::EnableEmail, |
| 73 | MainConfigNames::PasswordResetRoutes, |
| 74 | ]; |
| 75 | |
| 76 | /** |
| 77 | * This class is managed by MediaWikiServices, don't instantiate directly. |
| 78 | * |
| 79 | * @param ServiceOptions $config |
| 80 | * @param LoggerInterface $logger |
| 81 | * @param AuthManager $authManager |
| 82 | * @param HookContainer $hookContainer |
| 83 | * @param UserIdentityLookup $userIdentityLookup |
| 84 | * @param UserFactory $userFactory |
| 85 | * @param UserNameUtils $userNameUtils |
| 86 | * @param UserOptionsLookup $userOptionsLookup |
| 87 | */ |
| 88 | public function __construct( |
| 89 | ServiceOptions $config, |
| 90 | LoggerInterface $logger, |
| 91 | AuthManager $authManager, |
| 92 | HookContainer $hookContainer, |
| 93 | UserIdentityLookup $userIdentityLookup, |
| 94 | UserFactory $userFactory, |
| 95 | UserNameUtils $userNameUtils, |
| 96 | UserOptionsLookup $userOptionsLookup |
| 97 | ) { |
| 98 | $config->assertRequiredOptions( self::CONSTRUCTOR_OPTIONS ); |
| 99 | |
| 100 | $this->config = $config; |
| 101 | $this->logger = $logger; |
| 102 | |
| 103 | $this->authManager = $authManager; |
| 104 | $this->hookRunner = new HookRunner( $hookContainer ); |
| 105 | $this->userIdentityLookup = $userIdentityLookup; |
| 106 | $this->userFactory = $userFactory; |
| 107 | $this->userNameUtils = $userNameUtils; |
| 108 | $this->userOptionsLookup = $userOptionsLookup; |
| 109 | |
| 110 | $this->permissionCache = new MapCacheLRU( 1 ); |
| 111 | } |
| 112 | |
| 113 | /** |
| 114 | * Check if a given user has permission to use this functionality. |
| 115 | * @param User $user |
| 116 | * @since 1.29 Second argument for displayPassword removed. |
| 117 | * @return StatusValue |
| 118 | */ |
| 119 | public function isAllowed( User $user ) { |
| 120 | return $this->permissionCache->getWithSetCallback( |
| 121 | $user->getName(), |
| 122 | function () use ( $user ) { |
| 123 | return $this->computeIsAllowed( $user ); |
| 124 | } |
| 125 | ); |
| 126 | } |
| 127 | |
| 128 | /** |
| 129 | * @since 1.42 |
| 130 | * @return StatusValue |
| 131 | */ |
| 132 | public function isEnabled(): StatusValue { |
| 133 | $resetRoutes = $this->config->get( MainConfigNames::PasswordResetRoutes ); |
| 134 | if ( !is_array( $resetRoutes ) || !in_array( true, $resetRoutes, true ) ) { |
| 135 | // Maybe password resets are disabled, or there are no allowable routes |
| 136 | return StatusValue::newFatal( 'passwordreset-disabled' ); |
| 137 | } |
| 138 | |
| 139 | $providerStatus = $this->authManager->allowsAuthenticationDataChange( |
| 140 | new TemporaryPasswordAuthenticationRequest(), false ); |
| 141 | if ( !$providerStatus->isGood() ) { |
| 142 | // Maybe the external auth plugin won't allow local password changes |
| 143 | return StatusValue::newFatal( 'resetpass_forbidden-reason', |
| 144 | $providerStatus->getMessage() ); |
| 145 | } |
| 146 | if ( !$this->config->get( MainConfigNames::EnableEmail ) ) { |
| 147 | // Maybe email features have been disabled |
| 148 | return StatusValue::newFatal( 'passwordreset-emaildisabled' ); |
| 149 | } |
| 150 | return StatusValue::newGood(); |
| 151 | } |
| 152 | |
| 153 | /** |
| 154 | * @param User $user |
| 155 | * @return StatusValue |
| 156 | */ |
| 157 | private function computeIsAllowed( User $user ): StatusValue { |
| 158 | $enabledStatus = $this->isEnabled(); |
| 159 | if ( !$enabledStatus->isGood() ) { |
| 160 | return $enabledStatus; |
| 161 | } |
| 162 | if ( !$user->isAllowed( 'editmyprivateinfo' ) ) { |
| 163 | // Maybe not all users have permission to change private data |
| 164 | return StatusValue::newFatal( 'badaccess' ); |
| 165 | } |
| 166 | if ( $this->isBlocked( $user ) ) { |
| 167 | // Maybe the user is blocked (check this here rather than relying on the parent |
| 168 | // method as we have a more specific error message to use here and we want to |
| 169 | // ignore some types of blocks) |
| 170 | return StatusValue::newFatal( 'blocked-mailpassword' ); |
| 171 | } |
| 172 | return StatusValue::newGood(); |
| 173 | } |
| 174 | |
| 175 | /** |
| 176 | * Do a password reset. Authorization is the caller's responsibility. |
| 177 | * |
| 178 | * Process the form. At this point we know that the user passes all the criteria in |
| 179 | * userCanExecute(), and if the data array contains 'Username', etc, then Username |
| 180 | * resets are allowed. |
| 181 | * |
| 182 | * @since 1.29 Fourth argument for displayPassword removed. |
| 183 | * @param User $performingUser The user that does the password reset |
| 184 | * @param string|null $username The user whose password is reset |
| 185 | * @param string|null $email Alternative way to specify the user |
| 186 | * @return StatusValue |
| 187 | */ |
| 188 | public function execute( |
| 189 | User $performingUser, |
| 190 | $username = null, |
| 191 | $email = null |
| 192 | ) { |
| 193 | if ( !$this->isAllowed( $performingUser )->isGood() ) { |
| 194 | throw new LogicException( |
| 195 | 'User ' . $performingUser->getName() . ' is not allowed to reset passwords' |
| 196 | ); |
| 197 | } |
| 198 | |
| 199 | // Check against the rate limiter. If the $wgRateLimit is reached, we want to pretend |
| 200 | // that the request was good to avoid displaying an error message. |
| 201 | if ( $performingUser->pingLimiter( 'mailpassword' ) ) { |
| 202 | return StatusValue::newGood(); |
| 203 | } |
| 204 | |
| 205 | // We need to have a valid IP address for the hook 'User::mailPasswordInternal', but per T20347, |
| 206 | // we should send the user's name if they're logged in. |
| 207 | $ip = $performingUser->getRequest()->getIP(); |
| 208 | if ( !$ip ) { |
| 209 | return StatusValue::newFatal( 'badipaddress' ); |
| 210 | } |
| 211 | |
| 212 | $resetRoutes = $this->config->get( MainConfigNames::PasswordResetRoutes ) |
| 213 | + [ 'username' => false, 'email' => false ]; |
| 214 | if ( !$resetRoutes['username'] || $username === '' ) { |
| 215 | $username = null; |
| 216 | } |
| 217 | if ( !$resetRoutes['email'] || $email === '' ) { |
| 218 | $email = null; |
| 219 | } |
| 220 | |
| 221 | if ( $username !== null && !$this->userNameUtils->getCanonical( $username ) ) { |
| 222 | return StatusValue::newFatal( 'noname' ); |
| 223 | } |
| 224 | if ( $email !== null && !Sanitizer::validateEmail( $email ) ) { |
| 225 | return StatusValue::newFatal( 'passwordreset-invalidemail' ); |
| 226 | } |
| 227 | // At this point, $username and $email are either valid or not provided |
| 228 | |
| 229 | /** @var User[] $users */ |
| 230 | $users = []; |
| 231 | |
| 232 | if ( $username !== null ) { |
| 233 | $users[] = $this->userFactory->newFromName( $username ); |
| 234 | |
| 235 | } elseif ( $email !== null ) { |
| 236 | foreach ( $this->getUsersByEmail( $email ) as $userIdent ) { |
| 237 | // Skip users whose preference 'requireemail' is on since username was not submitted |
| 238 | if ( $this->userOptionsLookup->getBoolOption( $userIdent, 'requireemail' ) ) { |
| 239 | continue; |
| 240 | } |
| 241 | $users[] = $this->userFactory->newFromUserIdentity( $userIdent ); |
| 242 | } |
| 243 | |
| 244 | } else { |
| 245 | // The user didn't supply any data |
| 246 | return StatusValue::newFatal( 'passwordreset-nodata' ); |
| 247 | } |
| 248 | |
| 249 | // Check for hooks (captcha etc), and allow them to modify the users list |
| 250 | $data = [ |
| 251 | 'Username' => $username, |
| 252 | // Email is not provided to the hooks when we're resetting by username. |
| 253 | // We check for 'requireemail' below rather than relying on the hooks to do it. |
| 254 | // (However, we rely on the hooks doing it when resetting by email? That's a bit weird.) |
| 255 | 'Email' => $username === null ? $email : null, |
| 256 | ]; |
| 257 | |
| 258 | $error = []; |
| 259 | if ( !$this->hookRunner->onSpecialPasswordResetOnSubmit( $users, $data, $error ) ) { |
| 260 | return StatusValue::newFatal( Message::newFromSpecifier( $error ) ); |
| 261 | } |
| 262 | |
| 263 | // Get the first element in $users by using `reset` function since |
| 264 | // the key '0' might have been unset from $users array by a hook handler. |
| 265 | $firstUser = reset( $users ); |
| 266 | |
| 267 | $requireEmail = $username !== null |
| 268 | && $firstUser |
| 269 | && $this->userOptionsLookup->getBoolOption( $firstUser, 'requireemail' ); |
| 270 | if ( $requireEmail && $email === null ) { |
| 271 | // Email is required but not supplied: pretend everything's fine. |
| 272 | return StatusValue::newGood(); |
| 273 | } |
| 274 | |
| 275 | if ( !$users ) { |
| 276 | if ( $username === null ) { |
| 277 | // Don't reveal whether or not an email address is in use |
| 278 | return StatusValue::newGood(); |
| 279 | } else { |
| 280 | return StatusValue::newFatal( 'noname' ); |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | // If the user doesn't exist, or if the user doesn't have an email address, |
| 285 | // don't disclose the information. We want to pretend everything is ok per T238961. |
| 286 | // Note that all the users will have the same email address (or none), |
| 287 | // so there's no need to check more than the first. |
| 288 | if ( !$firstUser || !$firstUser->getId() || !$firstUser->getEmail() ) { |
| 289 | return StatusValue::newGood(); |
| 290 | } |
| 291 | |
| 292 | // Email is required but the email doesn't match: pretend everything's fine. |
| 293 | if ( $requireEmail && $firstUser->getEmail() !== $email ) { |
| 294 | return StatusValue::newGood(); |
| 295 | } |
| 296 | |
| 297 | $this->hookRunner->onUser__mailPasswordInternal( $performingUser, $ip, $firstUser ); |
| 298 | |
| 299 | $result = StatusValue::newGood(); |
| 300 | $reqs = []; |
| 301 | foreach ( $users as $user ) { |
| 302 | $req = TemporaryPasswordAuthenticationRequest::newRandom(); |
| 303 | $req->username = $user->getName(); |
| 304 | $req->mailpassword = true; |
| 305 | $req->caller = $performingUser->getName(); |
| 306 | |
| 307 | $status = $this->authManager->allowsAuthenticationDataChange( $req, true ); |
| 308 | // If status is good and the value is 'throttled-mailpassword', we want to pretend |
| 309 | // that the request was good to avoid displaying an error message and disclose |
| 310 | // if a reset password was previously sent. |
| 311 | if ( $status->isGood() && $status->getValue() === 'throttled-mailpassword' ) { |
| 312 | return StatusValue::newGood(); |
| 313 | } |
| 314 | |
| 315 | if ( $status->isGood() && $status->getValue() !== 'ignored' ) { |
| 316 | $reqs[] = $req; |
| 317 | } elseif ( $result->isGood() ) { |
| 318 | // only record the first error, to avoid exposing the number of users having the |
| 319 | // same email address |
| 320 | if ( $status->getValue() === 'ignored' ) { |
| 321 | $status = StatusValue::newFatal( 'passwordreset-ignored' ); |
| 322 | } |
| 323 | $result->merge( $status ); |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | $logContext = [ |
| 328 | 'requestingIp' => $ip, |
| 329 | 'requestingUser' => $performingUser->getName(), |
| 330 | 'targetUsername' => $username, |
| 331 | 'targetEmail' => $email, |
| 332 | ]; |
| 333 | |
| 334 | if ( !$result->isGood() ) { |
| 335 | $this->logger->info( |
| 336 | "{requestingUser} attempted password reset of {targetUsername} but failed", |
| 337 | $logContext + [ 'errors' => $result->getErrors() ] |
| 338 | ); |
| 339 | return $result; |
| 340 | } |
| 341 | |
| 342 | DeferredUpdates::addUpdate( |
| 343 | new SendPasswordResetEmailUpdate( $this->authManager, $reqs, $logContext ), |
| 344 | DeferredUpdates::POSTSEND |
| 345 | ); |
| 346 | |
| 347 | return StatusValue::newGood(); |
| 348 | } |
| 349 | |
| 350 | /** |
| 351 | * Check whether the user is blocked. |
| 352 | * Ignores certain types of system blocks that are only meant to force users to log in. |
| 353 | * @param User $user |
| 354 | * @return bool |
| 355 | * @since 1.30 |
| 356 | */ |
| 357 | private function isBlocked( User $user ) { |
| 358 | $block = $user->getBlock(); |
| 359 | return $block && $block->appliesToPasswordReset(); |
| 360 | } |
| 361 | |
| 362 | /** |
| 363 | * @note This is protected to allow configuring in tests. This class is not stable to extend. |
| 364 | * |
| 365 | * @param string $email |
| 366 | * @return iterable<UserIdentity> |
| 367 | */ |
| 368 | protected function getUsersByEmail( $email ) { |
| 369 | return $this->userIdentityLookup->newSelectQueryBuilder() |
| 370 | ->join( 'user', null, [ "actor_user=user_id" ] ) |
| 371 | ->where( [ 'user_email' => $email ] ) |
| 372 | ->caller( __METHOD__ ) |
| 373 | ->fetchUserIdentities(); |
| 374 | } |
| 375 | |
| 376 | } |
| 377 | |
| 378 | /** @deprecated class alias since 1.41 */ |
| 379 | class_alias( PasswordReset::class, 'PasswordReset' ); |