includes/SpecialUserlogin.php

   1 <?php
   2 /**
   3  *
   4  * @package MediaWiki
   5  * @subpackage SpecialPage
   6  */
   7
   8 /**
   9  * constructor
  10  */
  11 function wfSpecialUserlogin() {
  12         global $wgCommandLineMode;
  13         global $wgRequest;
  14         if( !$wgCommandLineMode && !isset( $_COOKIE[session_name()] )  ) {
  15                 User::SetupSession();
  16         }
  17
  18         $form = new LoginForm( $wgRequest );
  19         $form->execute();
  20 }
  21
  22 /**
  23  *
  24  * @package MediaWiki
  25  * @subpackage SpecialPage
  26  */
  27 class LoginForm {
  28         var $mName, $mPassword, $mRetype, $mReturnTo, $mCookieCheck, $mPosted;
  29         var $mAction, $mCreateaccount, $mCreateaccountMail, $mMailmypassword;
  30         var $mLoginattempt, $mRemember, $mEmail, $mDomain;
  31
  32         /**
  33          * Constructor
  34          * @param webrequest $request A webrequest object passed by reference
  35          */
  36         function LoginForm( &$request ) {
  37                 global $wgLang, $wgAllowRealName, $wgEnableEmail;
  38                 global $wgAuth;
  39
  40                 $this->mType = $request->getText( 'type' );
  41                 $this->mName = $request->getText( 'wpName' );
  42                 $this->mPassword = $request->getText( 'wpPassword' );
  43                 $this->mRetype = $request->getText( 'wpRetype' );
  44                 $this->mDomain = $request->getText( 'wpDomain' );
  45                 $this->mReturnTo = $request->getVal( 'returnto' );
  46                 $this->mCookieCheck = $request->getVal( 'wpCookieCheck' );
  47                 $this->mPosted = $request->wasPosted();
  48                 $this->mCreateaccount = $request->getCheck( 'wpCreateaccount' );
  49                 $this->mCreateaccountMail = $request->getCheck( 'wpCreateaccountMail' )
  50                                             && $wgEnableEmail;
  51                 $this->mMailmypassword = $request->getCheck( 'wpMailmypassword' )
  52                                          && $wgEnableEmail;
  53                 $this->mLoginattempt = $request->getCheck( 'wpLoginattempt' );
  54                 $this->mAction = $request->getVal( 'action' );
  55                 $this->mRemember = $request->getCheck( 'wpRemember' );
  56
  57                 if( $wgEnableEmail ) {
  58                         $this->mEmail = $request->getText( 'wpEmail' );
  59                 } else {
  60                         $this->mEmail = '';
  61                 }
  62                 if( $wgAllowRealName ) {
  63                     $this->mRealName = $request->getText( 'wpRealName' );
  64                 } else {
  65                     $this->mRealName = '';
  66                 }
  67
  68                 if( !$wgAuth->validDomain( $this->mDomain ) ) {
  69                         $this->mDomain = 'invaliddomain';
  70                 }
  71                 $wgAuth->setDomain( $this->mDomain );
  72
  73                 # When switching accounts, it sucks to get automatically logged out
  74                 if( $this->mReturnTo == $wgLang->specialPage( 'Userlogout' ) ) {
  75                         $this->mReturnTo = '';
  76                 }
  77         }
  78
  79         function execute() {
  80                 if ( !is_null( $this->mCookieCheck ) ) {
  81                         $this->onCookieRedirectCheck( $this->mCookieCheck );
  82                         return;
  83                 } else if( $this->mPosted ) {
  84                         if( $this->mCreateaccount ) {
  85                                 return $this->addNewAccount();
  86                         } else if ( $this->mCreateaccountMail ) {
  87                                 return $this->addNewAccountMailPassword();
  88                         } else if ( $this->mMailmypassword ) {
  89                                 return $this->mailPassword();
  90                         } else if ( ( 'submitlogin' == $this->mAction ) || $this->mLoginattempt ) {
  91                                 return $this->processLogin();
  92                         }
  93                 }
  94                 $this->mainLoginForm( '' );
  95         }
  96
  97         /**
  98          * @private
  99          */
 100         function addNewAccountMailPassword() {
 101                 global $wgOut;
 102
 103                 if ('' == $this->mEmail) {
 104                         $this->mainLoginForm( wfMsg( 'noemail', htmlspecialchars( $this->mName ) ) );
 105                         return;
 106                 }
 107
 108                 $u = $this->addNewaccountInternal();
 109
 110                 if ($u == NULL) {
 111                         return;
 112                 }
 113
 114                 $u->saveSettings();
 115                 $result = $this->mailPasswordInternal($u);
 116
 117                 wfRunHooks( 'AddNewAccount', array( $u ) );
 118
 119                 $wgOut->setPageTitle( wfMsg( 'accmailtitle' ) );
 120                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 121                 $wgOut->setArticleRelated( false );
 122
 123                 if( WikiError::isError( $result ) ) {
 124                         $this->mainLoginForm( wfMsg( 'mailerror', $result->getMessage() ) );
 125                 } else {
 126                         $wgOut->addWikiText( wfMsg( 'accmailtext', $u->getName(), $u->getEmail() ) );
 127                         $wgOut->returnToMain( false );
 128                 }
 129                 $u = 0;
 130         }
 131
 132
 133         /**
 134          * @private
 135          */
 136         function addNewAccount() {
 137                 global $wgUser, $wgEmailAuthentication;
 138
 139                 $u = $this->addNewAccountInternal();
 140
 141                 if ($u == NULL) {
 142                         return;
 143                 }
 144
 145                 $wgUser = $u;
 146                 $wgUser->setCookies();
 147
 148                 $wgUser->saveSettings();
 149                 if( $wgEmailAuthentication && $wgUser->isValidEmailAddr( $wgUser->getEmail() ) ) {
 150                         $wgUser->sendConfirmationMail();
 151                 }
 152
 153                 wfRunHooks( 'AddNewAccount', array( $u ) );
 154
 155                 if( $this->hasSessionCookie() ) {
 156                         return $this->successfulLogin( wfMsg( 'welcomecreation', $wgUser->getName() ), false );
 157                 } else {
 158                         return $this->cookieRedirectCheck( 'new' );
 159                 }
 160         }
 161
 162         /**
 163          * @private
 164          */
 165         function addNewAccountInternal() {
 166                 global $wgUser, $wgOut;
 167                 global $wgEnableSorbs, $wgProxyWhitelist;
 168                 global $wgMemc, $wgAccountCreationThrottle, $wgDBname;
 169                 global $wgAuth, $wgMinimalPasswordLength, $wgReservedUsernames;
 170
 171                 // If the user passes an invalid domain, something is fishy
 172                 if( !$wgAuth->validDomain( $this->mDomain ) ) {
 173                         $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 174                         return false;
 175                 }
 176
 177                 // If we are not allowing users to login locally, we should
 178                 // be checking to see if the user is actually able to
 179                 // authenticate to the authentication server before they
 180                 // create an account (otherwise, they can create a local account
 181                 // and login as any domain user). We only need to check this for
 182                 // domains that aren't local.
 183                 if( 'local' != $this->mDomain && '' != $this->mDomain ) {
 184                         if( !$wgAuth->canCreateAccounts() && ( !$wgAuth->userExists( $this->mName ) || !$wgAuth->authenticate( $this->mName, $this->mPassword ) ) ) {
 185                                 $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 186                                 return false;
 187                         }
 188                 }
 189
 190                 if ( wfReadOnly() ) {
 191                         $wgOut->readOnlyPage();
 192                         return false;
 193                 }
 194
 195                 if (!$wgUser->isAllowedToCreateAccount()) {
 196                         $this->userNotPrivilegedMessage();
 197                         return false;
 198                 }
 199
 200                 $ip = wfGetIP();
 201                 if ( $wgEnableSorbs && !in_array( $ip, $wgProxyWhitelist ) &&
 202                   $wgUser->inSorbsBlacklist( $ip ) )
 203                 {
 204                         $this->mainLoginForm( wfMsg( 'sorbs_create_account_reason' ) . ' (' . htmlspecialchars( $ip ) . ')' );
 205                         return;
 206                 }
 207
 208                 $name = trim( $this->mName );
 209                 $u = User::newFromName( $name );
 210                 if ( is_null( $u ) || in_array( $u->getName(), $wgReservedUsernames ) ) {
 211                         $this->mainLoginForm( wfMsg( 'noname' ) );
 212                         return false;
 213                 }
 214
 215                 if ( 0 != $u->idForName() ) {
 216                         $this->mainLoginForm( wfMsg( 'userexists' ) );
 217                         return false;
 218                 }
 219
 220                 if ( 0 != strcmp( $this->mPassword, $this->mRetype ) ) {
 221                         $this->mainLoginForm( wfMsg( 'badretype' ) );
 222                         return false;
 223                 }
 224
 225                 if ( !$wgUser->isValidPassword( $this->mPassword ) ) {
 226                         $this->mainLoginForm( wfMsg( 'passwordtooshort', $wgMinimalPasswordLength ) );
 227                         return false;
 228                 }
 229
 230                 if ( $wgAccountCreationThrottle ) {
 231                         $key = $wgDBname.':acctcreate:ip:'.$ip;
 232                         $value = $wgMemc->incr( $key );
 233                         if ( !$value ) {
 234                                 $wgMemc->set( $key, 1, 86400 );
 235                         }
 236                         if ( $value > $wgAccountCreationThrottle ) {
 237                                 $this->throttleHit( $wgAccountCreationThrottle );
 238                                 return false;
 239                         }
 240                 }
 241
 242                 $abortError = '';
 243                 if( !wfRunHooks( 'AbortNewAccount', array( $u, &$abortError ) ) ) {
 244                         // Hook point to add extra creation throttles and blocks
 245                         wfDebug( "LoginForm::addNewAccountInternal: a hook blocked creation\n" );
 246                         $this->mainLoginForm( $abortError );
 247                         return false;
 248                 }
 249
 250                 if( !$wgAuth->addUser( $u, $this->mPassword ) ) {
 251                         $this->mainLoginForm( wfMsg( 'externaldberror' ) );
 252                         return false;
 253                 }
 254
 255                 # Update user count
 256                 $ssUpdate = new SiteStatsUpdate( 0, 0, 0, 0, 1 );
 257                 $ssUpdate->doUpdate();
 258
 259                 return $this->initUser( $u );
 260         }
 261
 262         /**
 263          * Actually add a user to the database.
 264          * Give it a User object that has been initialised with a name.
 265          *
 266          * @param $u User object.
 267          * @return User object.
 268          * @private
 269          */
 270         function &initUser( &$u ) {
 271                 $u->addToDatabase();
 272                 $u->setPassword( $this->mPassword );
 273                 $u->setEmail( $this->mEmail );
 274                 $u->setRealName( $this->mRealName );
 275                 $u->setToken();
 276
 277                 global $wgAuth;
 278                 $wgAuth->initUser( $u );
 279
 280                 $u->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 );
 281
 282                 return $u;
 283         }
 284
 285         /**
 286          * @private
 287          */
 288         function processLogin() {
 289                 global $wgUser, $wgAuth, $wgReservedUsernames;
 290
 291                 if ( '' == $this->mName ) {
 292                         $this->mainLoginForm( wfMsg( 'noname' ) );
 293                         return;
 294                 }
 295                 $u = User::newFromName( $this->mName );
 296                 if( is_null( $u ) || in_array( $u->getName(), $wgReservedUsernames ) ) {
 297                         $this->mainLoginForm( wfMsg( 'noname' ) );
 298                         return;
 299                 }
 300                 if ( 0 == $u->getID() ) {
 301                         global $wgAuth;
 302                         /**
 303                          * If the external authentication plugin allows it,
 304                          * automatically create a new account for users that
 305                          * are externally defined but have not yet logged in.
 306                          */
 307                         if ( $wgAuth->autoCreate() && $wgAuth->userExists( $u->getName() ) ) {
 308                                 if ( $wgAuth->authenticate( $u->getName(), $this->mPassword ) ) {
 309                                         $u =& $this->initUser( $u );
 310                                 } else {
 311                                         $this->mainLoginForm( wfMsg( 'wrongpassword' ) );
 312                                         return;
 313                                 }
 314                         } else {
 315                                 $this->mainLoginForm( wfMsg( 'nosuchuser', $u->getName() ) );
 316                                 return;
 317                         }
 318                 } else {
 319                         $u->loadFromDatabase();
 320                 }
 321
 322                 if (!$u->checkPassword( $this->mPassword )) {
 323                         $this->mainLoginForm( wfMsg( $this->mPassword == '' ? 'wrongpasswordempty' : 'wrongpassword' ) );
 324                         return;
 325                 }
 326
 327                 # We've verified now, update the real record
 328                 #
 329                 if ( $this->mRemember ) {
 330                         $r = 1;
 331                 } else {
 332                         $r = 0;
 333                 }
 334                 $u->setOption( 'rememberpassword', $r );
 335
 336                 $wgAuth->updateUser( $u );
 337
 338                 $wgUser = $u;
 339                 $wgUser->setCookies();
 340
 341                 $wgUser->saveSettings();
 342
 343                 if( $this->hasSessionCookie() ) {
 344                         return $this->successfulLogin( wfMsg( 'loginsuccess', $wgUser->getName() ) );
 345                 } else {
 346                         return $this->cookieRedirectCheck( 'login' );
 347                 }
 348         }
 349
 350         /**
 351          * @private
 352          */
 353         function mailPassword() {
 354                 if ( '' == $this->mName ) {
 355                         $this->mainLoginForm( wfMsg( 'noname' ) );
 356                         return;
 357                 }
 358                 $u = User::newFromName( $this->mName );
 359                 if( is_null( $u ) ) {
 360                         $this->mainLoginForm( wfMsg( 'noname' ) );
 361                         return;
 362                 }
 363                 if ( 0 == $u->getID() ) {
 364                         $this->mainLoginForm( wfMsg( 'nosuchuser', $u->getName() ) );
 365                         return;
 366                 }
 367
 368                 $u->loadFromDatabase();
 369
 370                 $result = $this->mailPasswordInternal( $u );
 371                 if( WikiError::isError( $result ) ) {
 372                         $this->mainLoginForm( wfMsg( 'mailerror', $result->getMessage() ) );
 373                 } else {
 374                         $this->mainLoginForm( wfMsg( 'passwordsent', $u->getName() ), 'success' );
 375                 }
 376         }
 377
 378
 379         /**
 380          * @return mixed true on success, WikiError on failure
 381          * @private
 382          */
 383         function mailPasswordInternal( $u ) {
 384                 global $wgCookiePath, $wgCookieDomain, $wgCookiePrefix, $wgCookieSecure;
 385
 386                 if ( '' == $u->getEmail() ) {
 387                         return wfMsg( 'noemail', $u->getName() );
 388                 }
 389
 390                 $np = $u->randomPassword();
 391                 $u->setNewpassword( $np );
 392
 393                 setcookie( "{$wgCookiePrefix}Token", '', time() - 3600, $wgCookiePath, $wgCookieDomain, $wgCookieSecure );
 394
 395                 $u->saveSettings();
 396
 397                 $ip = wfGetIP();
 398                 if ( '' == $ip ) { $ip = '(Unknown)'; }
 399
 400                 $m = wfMsg( 'passwordremindertext', $ip, $u->getName(), $np );
 401
 402                 $result = $u->sendMail( wfMsg( 'passwordremindertitle' ), $m );
 403                 return $result;
 404         }
 405
 406
 407         /**
 408          * @param string $msg Message that will be shown on success
 409          * @param bool $auto Toggle auto-redirect to main page; default true
 410          * @private
 411          */
 412         function successfulLogin( $msg, $auto = true ) {
 413                 global $wgUser;
 414                 global $wgOut;
 415
 416                 # Run any hooks; ignore results
 417
 418                 wfRunHooks('UserLoginComplete', array(&$wgUser));
 419
 420                 $wgOut->setPageTitle( wfMsg( 'loginsuccesstitle' ) );
 421                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 422                 $wgOut->setArticleRelated( false );
 423                 $wgOut->addWikiText( $msg );
 424                 if ( !empty( $this->mReturnTo ) ) {
 425                         $wgOut->returnToMain( $auto, $this->mReturnTo );
 426                 } else {
 427                         $wgOut->returnToMain( $auto );
 428                 }
 429         }
 430
 431         /** */
 432         function userNotPrivilegedMessage() {
 433                 global $wgOut;
 434
 435                 $wgOut->setPageTitle( wfMsg( 'whitelistacctitle' ) );
 436                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 437                 $wgOut->setArticleRelated( false );
 438
 439                 $wgOut->addWikiText( wfMsg( 'whitelistacctext' ) );
 440
 441                 $wgOut->returnToMain( false );
 442         }
 443
 444         /**
 445          * @private
 446          */
 447         function mainLoginForm( $msg, $msgtype = 'error' ) {
 448                 global $wgUser, $wgOut;
 449                 global $wgAllowRealName, $wgEnableEmail;
 450                 global $wgCookiePrefix;
 451                 global $wgAuth;
 452
 453                 if ( '' == $this->mName ) {
 454                         if ( $wgUser->isLoggedIn() ) {
 455                                 $this->mName = $wgUser->getName();
 456                         } else {
 457                                 $this->mName = @$_COOKIE[$wgCookiePrefix.'UserName'];
 458                         }
 459                 }
 460
 461                 $titleObj = Title::makeTitle( NS_SPECIAL, 'Userlogin' );
 462
 463                 require_once( 'SkinTemplate.php' );
 464                 require_once( 'templates/Userlogin.php' );
 465
 466                 if ( $this->mType == 'signup' ) {
 467                         $template =& new UsercreateTemplate();
 468                         $q = 'action=submitlogin&type=signup';
 469                         $linkq = 'type=login';
 470                         $linkmsg = 'gotaccount';
 471                 } else {
 472                         $template =& new UserloginTemplate();
 473                         $q = 'action=submitlogin&type=login';
 474                         $linkq = 'type=signup';
 475                         $linkmsg = 'nologin';
 476                 }
 477
 478                 if ( !empty( $this->mReturnTo ) ) {
 479                         $returnto = '&returnto=' . wfUrlencode( $this->mReturnTo );
 480                         $q .= $returnto;
 481                         $linkq .= $returnto;
 482                 }
 483
 484                 $link = '<a href="' . htmlspecialchars ( $titleObj->getLocalUrl( $linkq ) ) . '">';
 485                 $link .= wfMsgHtml( $linkmsg . 'link' );
 486                 $link .= '</a>';
 487
 488                 # Don't show a "create account" link if the user can't
 489                 if( $this->showCreateOrLoginLink( $wgUser ) )
 490                         $template->set( 'link', wfMsgHtml( $linkmsg, $link ) );
 491                 else
 492                         $template->set( 'link', '' );
 493
 494                 $template->set( 'header', '' );
 495                 $template->set( 'name', $this->mName );
 496                 $template->set( 'password', $this->mPassword );
 497                 $template->set( 'retype', $this->mRetype );
 498                 $template->set( 'email', $this->mEmail );
 499                 $template->set( 'realname', $this->mRealName );
 500                 $template->set( 'domain', $this->mDomain );
 501
 502                 $template->set( 'action', $titleObj->getLocalUrl( $q ) );
 503                 $template->set( 'message', $msg );
 504                 $template->set( 'messagetype', $msgtype );
 505                 $template->set( 'create', $wgUser->isAllowedToCreateAccount() );
 506                 $template->set( 'createemail', $wgEnableEmail && $wgUser->isLoggedIn() );
 507                 $template->set( 'userealname', $wgAllowRealName );
 508                 $template->set( 'useemail', $wgEnableEmail );
 509                 $template->set( 'remember', $wgUser->getOption( 'rememberpassword' ) or $this->mRemember  );
 510
 511                 // Give authentication and captcha plugins a chance to modify the form
 512                 $wgAuth->modifyUITemplate( $template );
 513                 if ( $this->mType == 'signup' ) {
 514                         wfRunHooks( 'UserCreateForm', array( &$template ) );
 515                 } else {
 516                         wfRunHooks( 'UserLoginForm', array( &$template ) );
 517                 }
 518
 519                 $wgOut->setPageTitle( wfMsg( 'userlogin' ) );
 520                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 521                 $wgOut->setArticleRelated( false );
 522                 $wgOut->addTemplate( $template );
 523         }
 524
 525         /**
 526          * @private
 527          */
 528         function showCreateOrLoginLink( &$user ) {
 529                 if( $this->mType == 'signup' ) {
 530                         return( true );
 531                 } elseif( $user->isAllowedToCreateAccount() ) {
 532                         return( true );
 533                 } else {
 534                         return( false );
 535                 }
 536         }
 537
 538         /**
 539          * @private
 540          */
 541         function hasSessionCookie() {
 542                 global $wgDisableCookieCheck;
 543                 return ( $wgDisableCookieCheck ) ? true : ( isset( $_COOKIE[session_name()] ) );
 544         }
 545
 546         /**
 547          * @private
 548          */
 549         function cookieRedirectCheck( $type ) {
 550                 global $wgOut;
 551
 552                 $titleObj = Title::makeTitle( NS_SPECIAL, 'Userlogin' );
 553                 $check = $titleObj->getFullURL( 'wpCookieCheck='.$type );
 554
 555                 return $wgOut->redirect( $check );
 556         }
 557
 558         /**
 559          * @private
 560          */
 561         function onCookieRedirectCheck( $type ) {
 562                 global $wgUser;
 563
 564                 if ( !$this->hasSessionCookie() ) {
 565                         if ( $type == 'new' ) {
 566                                 return $this->mainLoginForm( wfMsg( 'nocookiesnew' ) );
 567                         } else if ( $type == 'login' ) {
 568                                 return $this->mainLoginForm( wfMsg( 'nocookieslogin' ) );
 569                         } else {
 570                                 # shouldn't happen
 571                                 return $this->mainLoginForm( wfMsg( 'error' ) );
 572                         }
 573                 } else {
 574                         return $this->successfulLogin( wfMsg( 'loginsuccess', $wgUser->getName() ) );
 575                 }
 576         }
 577
 578         /**
 579          * @private
 580          */
 581         function throttleHit( $limit ) {
 582                 global $wgOut;
 583
 584                 $wgOut->addWikiText( wfMsg( 'acct_creation_throttle_hit', $limit ) );
 585         }
 586 }
 587 ?>