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| 1 | <?php |
| 2 | /** |
| 3 | * @license GPL-2.0-or-later |
| 4 | * @file |
| 5 | */ |
| 6 | |
| 7 | namespace MediaWiki\Auth; |
| 8 | |
| 9 | use InvalidArgumentException; |
| 10 | use MediaWiki\Message\Message; |
| 11 | |
| 12 | /** |
| 13 | * This is a value object to hold authentication response data |
| 14 | * |
| 15 | * An AuthenticationResponse represents both the status of the authentication |
| 16 | * (success, failure, in progress) and its state (what data is needed to continue). |
| 17 | * |
| 18 | * @ingroup Auth |
| 19 | * @since 1.27 |
| 20 | */ |
| 21 | class AuthenticationResponse { |
| 22 | /** Indicates that the authentication succeeded. */ |
| 23 | public const PASS = 'PASS'; |
| 24 | |
| 25 | /** Indicates that the authentication failed. */ |
| 26 | public const FAIL = 'FAIL'; |
| 27 | |
| 28 | /** Indicates that third-party authentication succeeded but no user exists. |
| 29 | * Either treat this like a UI response or pass $this->createRequest to |
| 30 | * AuthManager::beginCreateAccount(). For use by AuthManager only (providers |
| 31 | * should just return a PASS with no username). |
| 32 | */ |
| 33 | public const RESTART = 'RESTART'; |
| 34 | |
| 35 | /** Indicates that the authentication provider does not handle this request. */ |
| 36 | public const ABSTAIN = 'ABSTAIN'; |
| 37 | |
| 38 | /** Indicates that the authentication needs further user input of some sort. */ |
| 39 | public const UI = 'UI'; |
| 40 | |
| 41 | /** Indicates that the authentication needs to be redirected to a third party to proceed. */ |
| 42 | public const REDIRECT = 'REDIRECT'; |
| 43 | |
| 44 | /** @var string One of the constants above */ |
| 45 | public $status; |
| 46 | |
| 47 | /** @var string|null URL to redirect to for a REDIRECT response */ |
| 48 | public $redirectTarget = null; |
| 49 | |
| 50 | /** |
| 51 | * @var mixed Data for a REDIRECT response that a client might use to |
| 52 | * query the remote site via its API rather than by following $redirectTarget. |
| 53 | * Value must be something acceptable to ApiResult::addValue(). |
| 54 | */ |
| 55 | public $redirectApiData = null; |
| 56 | |
| 57 | /** |
| 58 | * @var AuthenticationRequest[] Needed AuthenticationRequests to continue |
| 59 | * after a UI or REDIRECT response. This plays the same role when continuing |
| 60 | * authentication as AuthManager::getAuthenticationRequests() does when |
| 61 | * beginning it. |
| 62 | */ |
| 63 | public $neededRequests = []; |
| 64 | |
| 65 | /** @var Message|null I18n message to display in case of UI or FAIL */ |
| 66 | public $message = null; |
| 67 | |
| 68 | /** @var string Whether the $message is an error or warning message, for styling reasons */ |
| 69 | public $messageType = 'warning'; |
| 70 | |
| 71 | /** |
| 72 | * @var string|null Local username from authentication. |
| 73 | * The value may be null if the authentication passed, but no local user is known. |
| 74 | */ |
| 75 | public $username = null; |
| 76 | |
| 77 | /** |
| 78 | * @var AuthenticationRequest|null |
| 79 | * |
| 80 | * Returned with a PrimaryAuthenticationProvider login FAIL or a PASS with |
| 81 | * no username, this can be set to a request that should result in a PASS when |
| 82 | * passed to that provider's PrimaryAuthenticationProvider::beginPrimaryAccountCreation(). |
| 83 | * The client will be able to send that back for expedited account creation where only |
| 84 | * the username needs to be filled. |
| 85 | * |
| 86 | * Returned with an AuthManager login FAIL or RESTART, this holds a |
| 87 | * CreateFromLoginAuthenticationRequest that may be passed to |
| 88 | * AuthManager::beginCreateAccount(), possibly in place of any |
| 89 | * "primary-required" requests. It may also be passed to |
| 90 | * AuthManager::beginAuthentication() to preserve the list of |
| 91 | * accounts which can be linked after success (see $linkRequest). |
| 92 | */ |
| 93 | public $createRequest = null; |
| 94 | |
| 95 | /** |
| 96 | * @var AuthenticationRequest|null When returned with a PrimaryAuthenticationProvider |
| 97 | * login PASS with no username, the request this holds will be passed to |
| 98 | * AuthManager::changeAuthenticationData() once the local user has been determined and the |
| 99 | * user has confirmed the account ownership (by reviewing the information given by |
| 100 | * $linkRequest->describeCredentials()). The provider should handle that |
| 101 | * changeAuthenticationData() call by doing the actual linking. |
| 102 | */ |
| 103 | public $linkRequest = null; |
| 104 | |
| 105 | /** |
| 106 | * @var AuthenticationRequest|null Returned with an AuthManager account |
| 107 | * creation PASS, this holds a request to pass to AuthManager::beginAuthentication() |
| 108 | * to immediately log into the created account. All provider methods except |
| 109 | * postAuthentication will be skipped. |
| 110 | */ |
| 111 | public $loginRequest = null; |
| 112 | |
| 113 | /** |
| 114 | * @var string[]|null String data that is optionally provided on a FAIL. It describes information about the |
| 115 | * failed AuthenticationResponse that shouldn't be shared with the client. |
| 116 | * |
| 117 | * The CheckUser extension uses this so that it can receive whether a login request for a locked |
| 118 | * account had the correct password. Using the I18n message would allow the client to see if the |
| 119 | * password they tried on the locked account was correct while this method does not show the client this info. |
| 120 | */ |
| 121 | public $failReasons = null; |
| 122 | |
| 123 | /** |
| 124 | * @param string|null $username Local username |
| 125 | * @return AuthenticationResponse |
| 126 | * @see AuthenticationResponse::PASS |
| 127 | */ |
| 128 | public static function newPass( $username = null ) { |
| 129 | $ret = new AuthenticationResponse; |
| 130 | $ret->status = self::PASS; |
| 131 | $ret->username = $username; |
| 132 | return $ret; |
| 133 | } |
| 134 | |
| 135 | /** |
| 136 | * @param Message $msg |
| 137 | * @param string[] $failReasons An array of strings that describes the reason(s) for a login failure |
| 138 | * @return AuthenticationResponse |
| 139 | * @see AuthenticationResponse::FAIL |
| 140 | */ |
| 141 | public static function newFail( Message $msg, array $failReasons = [] ) { |
| 142 | $ret = new AuthenticationResponse; |
| 143 | $ret->status = self::FAIL; |
| 144 | $ret->message = $msg; |
| 145 | $ret->messageType = 'error'; |
| 146 | $ret->failReasons = $failReasons; |
| 147 | return $ret; |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * @param Message $msg |
| 152 | * @return AuthenticationResponse |
| 153 | * @see AuthenticationResponse::RESTART |
| 154 | */ |
| 155 | public static function newRestart( Message $msg ) { |
| 156 | $ret = new AuthenticationResponse; |
| 157 | $ret->status = self::RESTART; |
| 158 | $ret->message = $msg; |
| 159 | return $ret; |
| 160 | } |
| 161 | |
| 162 | /** |
| 163 | * @return AuthenticationResponse |
| 164 | * @see AuthenticationResponse::ABSTAIN |
| 165 | */ |
| 166 | public static function newAbstain() { |
| 167 | $ret = new AuthenticationResponse; |
| 168 | $ret->status = self::ABSTAIN; |
| 169 | return $ret; |
| 170 | } |
| 171 | |
| 172 | /** |
| 173 | * @param AuthenticationRequest[] $reqs AuthenticationRequests needed to continue |
| 174 | * @param ?Message $msg |
| 175 | * @param string $msgtype |
| 176 | * @return AuthenticationResponse |
| 177 | * @see AuthenticationResponse::UI |
| 178 | */ |
| 179 | public static function newUI( array $reqs, ?Message $msg = null, $msgtype = 'warning' ) { |
| 180 | if ( !$reqs ) { |
| 181 | throw new InvalidArgumentException( '$reqs may not be empty' ); |
| 182 | } |
| 183 | if ( $msgtype !== 'warning' && $msgtype !== 'error' ) { |
| 184 | throw new InvalidArgumentException( $msgtype . ' is not a valid message type.' ); |
| 185 | } |
| 186 | |
| 187 | $ret = new AuthenticationResponse; |
| 188 | $ret->status = self::UI; |
| 189 | $ret->neededRequests = $reqs; |
| 190 | $ret->message = $msg; |
| 191 | $ret->messageType = $msgtype; |
| 192 | return $ret; |
| 193 | } |
| 194 | |
| 195 | /** |
| 196 | * @param AuthenticationRequest[] $reqs AuthenticationRequests needed to continue |
| 197 | * @param string $redirectTarget URL |
| 198 | * @param mixed|null $redirectApiData Data suitable for adding to an ApiResult |
| 199 | * @return AuthenticationResponse |
| 200 | * @see AuthenticationResponse::REDIRECT |
| 201 | */ |
| 202 | public static function newRedirect( array $reqs, $redirectTarget, $redirectApiData = null ) { |
| 203 | if ( !$reqs ) { |
| 204 | throw new InvalidArgumentException( '$reqs may not be empty' ); |
| 205 | } |
| 206 | |
| 207 | $ret = new AuthenticationResponse; |
| 208 | $ret->status = self::REDIRECT; |
| 209 | $ret->neededRequests = $reqs; |
| 210 | $ret->redirectTarget = $redirectTarget; |
| 211 | $ret->redirectApiData = $redirectApiData; |
| 212 | return $ret; |
| 213 | } |
| 214 | |
| 215 | } |