92fae7b39fdef54f9cbf1c987104614ff26e3e3f hiram Fri Oct 7 10:54:31 2011 -0700 wiki patches for version 1.16.3 diff --git src/hg/wikiMods/includes.specials.SpecialUserloginUCSC.php src/hg/wikiMods/includes.specials.SpecialUserloginUCSC.php new file mode 100644 index 0000000..fa73509 --- /dev/null +++ src/hg/wikiMods/includes.specials.SpecialUserloginUCSC.php @@ -0,0 +1,1239 @@ +<?php +/** + * @file + * @ingroup SpecialPage + */ + +/** + * constructor + */ +function wfSpecialUserloginUCSC( $par = '' ) { + global $wgRequest; + if( session_id() == '' ) { + wfSetupSession(); + } + + $form = new LoginForm( $wgRequest, $par ); + $form->execute(); +} + +/** + * implements Special:Login + * @ingroup SpecialPage + */ +class LoginForm { + + const SUCCESS = 0; + const NO_NAME = 1; + const ILLEGAL = 2; + const WRONG_PLUGIN_PASS = 3; + const NOT_EXISTS = 4; + const WRONG_PASS = 5; + const EMPTY_PASS = 6; + const RESET_PASS = 7; + const ABORTED = 8; + const CREATE_BLOCKED = 9; + const THROTTLED = 10; + const USER_BLOCKED = 11; + const NEED_TOKEN = 12; + const WRONG_TOKEN = 13; + + var $mName, $mPassword, $mRetype, $mReturnTo, $mCookieCheck, $mPosted; + var $mAction, $mCreateaccount, $mCreateaccountMail, $mMailmypassword; + var $mLoginattempt, $mRemember, $mEmail, $mDomain, $mLanguage; + var $mSkipCookieCheck, $mReturnToQuery, $mToken; + + private $mExtUser = null; + + /** + * Constructor + * @param $request WebRequest: a WebRequest object passed by reference + * @param $par String: subpage parameter + */ + function LoginForm( &$request, $par = '' ) { + global $wgAuth, $wgHiddenPrefs, $wgEnableEmail, $wgRedirectOnLogin; + + $this->mType = ( $par == 'signup' ) ? $par : $request->getText( 'type' ); # Check for [[Special:Userlogin/signup]] + $this->mName = $request->getText( 'wpName' ); + $this->mPassword = $request->getText( 'wpPassword' ); + $this->mRetype = $request->getText( 'wpRetype' ); + $this->mDomain = $request->getText( 'wpDomain' ); + $this->mReturnTo = $request->getVal( 'returnto' ); + $this->mReturnToQuery = $request->getVal( 'returntoquery' ); + $this->mCookieCheck = $request->getVal( 'wpCookieCheck' ); + $this->mPosted = $request->wasPosted(); + $this->mCreateaccount = $request->getCheck( 'wpCreateaccount' ); + $this->mCreateaccountMail = $request->getCheck( 'wpCreateaccountMail' ) + && $wgEnableEmail; + $this->mMailmypassword = $request->getCheck( 'wpMailmypassword' ) + && $wgEnableEmail; + $this->mLoginattempt = $request->getCheck( 'wpLoginattempt' ); + $this->mAction = $request->getVal( 'action' ); + $this->mRemember = $request->getCheck( 'wpRemember' ); + $this->mLanguage = $request->getText( 'uselang' ); + $this->mSkipCookieCheck = $request->getCheck( 'wpSkipCookieCheck' ); + $this->mToken = ($this->mType == 'signup' ) ? $request->getVal( 'wpCreateaccountToken' ) : $request->getVal( 'wpLoginToken' ); + + if ( $wgRedirectOnLogin ) { + $this->mReturnTo = $wgRedirectOnLogin; + $this->mReturnToQuery = ''; + } + + if( $wgEnableEmail ) { + $this->mEmail = $request->getText( 'wpEmail' ); + } else { + $this->mEmail = ''; + } + if( !in_array( 'realname', $wgHiddenPrefs ) ) { + $this->mRealName = $request->getText( 'wpRealName' ); + } else { + $this->mRealName = ''; + } + + if( !$wgAuth->validDomain( $this->mDomain ) ) { + $this->mDomain = 'invaliddomain'; + } + $wgAuth->setDomain( $this->mDomain ); + + # When switching accounts, it sucks to get automatically logged out + $returnToTitle = Title::newFromText( $this->mReturnTo ); + if( is_object( $returnToTitle ) && $returnToTitle->isSpecial( 'Userlogout' ) ) { + $this->mReturnTo = ''; + $this->mReturnToQuery = ''; + } + } + + function execute() { + if ( !is_null( $this->mCookieCheck ) ) { + $this->onCookieRedirectCheck( $this->mCookieCheck ); + return; + } else if( $this->mPosted ) { + if( $this->mCreateaccount ) { + return $this->addNewAccount(); + } else if ( $this->mCreateaccountMail ) { + return $this->addNewAccountMailPassword(); + } else if ( $this->mMailmypassword ) { + return $this->mailPassword(); + } else if ( ( 'submitlogin' == $this->mAction ) || $this->mLoginattempt ) { + return $this->processLogin(); + } + } + $this->mainLoginForm( '' ); + } + + /** + * @private + */ + function addNewAccountMailPassword() { + global $wgOut; + + if ( $this->mEmail == '' ) { + $this->mainLoginForm( wfMsg( 'noemail', htmlspecialchars( $this->mName ) ) ); + return; + } + + $u = $this->addNewaccountInternal(); + + if ($u == null) { + return; + } + + // Wipe the initial password and mail a temporary one + $u->setPassword( null ); + $u->saveSettings(); + $result = $this->mailPasswordInternal( $u, false, 'createaccount-title', 'createaccount-text' ); + + wfRunHooks( 'AddNewAccount', array( $u, true ) ); + $u->addNewUserLogEntry(); + + $wgOut->setPageTitle( wfMsg( 'accmailtitle' ) ); + $wgOut->setRobotPolicy( 'noindex,nofollow' ); + $wgOut->setArticleRelated( false ); + + if( WikiError::isError( $result ) ) { + $this->mainLoginForm( wfMsg( 'mailerror', $result->getMessage() ) ); + } else { + $wgOut->addWikiMsg( 'accmailtext', $u->getName(), $u->getEmail() ); + $wgOut->returnToMain( false ); + } + $u = 0; + } + + + /** + * @private + */ + function addNewAccount() { + global $wgUser, $wgEmailAuthentication; + + # Create the account and abort if there's a problem doing so + $u = $this->addNewAccountInternal(); + if( $u == null ) + return; + + # If we showed up language selection links, and one was in use, be + # smart (and sensible) and save that language as the user's preference + global $wgLoginLanguageSelector; + if( $wgLoginLanguageSelector && $this->mLanguage ) + $u->setOption( 'language', $this->mLanguage ); + + # Send out an email authentication message if needed + if( $wgEmailAuthentication && User::isValidEmailAddr( $u->getEmail() ) ) { + global $wgOut; + $error = $u->sendConfirmationMail(); + if( WikiError::isError( $error ) ) { + $wgOut->addWikiMsg( 'confirmemail_sendfailed', $error->getMessage() ); + } else { + $wgOut->addWikiMsg( 'confirmemail_oncreate' ); + } + } + + # Save settings (including confirmation token) + $u->saveSettings(); + + # If not logged in, assume the new account as the current one and set + # session cookies then show a "welcome" message or a "need cookies" + # message as needed + if( $wgUser->isAnon() ) { + $wgUser = $u; + $wgUser->setCookies(); + wfRunHooks( 'AddNewAccount', array( $wgUser, false ) ); + $wgUser->addNewUserLogEntry(); + if( $this->hasSessionCookie() ) { + return $this->successfulCreation(); + } else { + return $this->cookieRedirectCheck( 'new' ); + } + } else { + # Confirm that the account was created + global $wgOut; + $self = SpecialPage::getTitleFor( 'UserloginUCSC' ); + $wgOut->setPageTitle( wfMsgHtml( 'accountcreated' ) ); + $wgOut->setArticleRelated( false ); + $wgOut->setRobotPolicy( 'noindex,nofollow' ); + $wgOut->addHTML( wfMsgWikiHtml( 'accountcreatedtext', $u->getName() ) ); + $wgOut->returnToMain( false, $self ); + wfRunHooks( 'AddNewAccount', array( $u, false ) ); + $u->addNewUserLogEntry(); + return true; + } + } + + /** + * @private + */ + function addNewAccountInternal() { + global $wgUser, $wgOut; + global $wgMemc, $wgAccountCreationThrottle; + global $wgAuth, $wgMinimalPasswordLength; + global $wgEmailConfirmToEdit; + + // If the user passes an invalid domain, something is fishy + if( !$wgAuth->validDomain( $this->mDomain ) ) { + $this->mainLoginForm( wfMsg( 'wrongpassword' ) ); + return false; + } + + // If we are not allowing users to login locally, we should be checking + // to see if the user is actually able to authenticate to the authenti- + // cation server before they create an account (otherwise, they can + // create a local account and login as any domain user). We only need + // to check this for domains that aren't local. + if( 'local' != $this->mDomain && $this->mDomain != '' ) { + if( !$wgAuth->canCreateAccounts() && ( !$wgAuth->userExists( $this->mName ) || !$wgAuth->authenticate( $this->mName, $this->mPassword ) ) ) { + $this->mainLoginForm( wfMsg( 'wrongpassword' ) ); + return false; + } + } + + if ( wfReadOnly() ) { + $wgOut->readOnlyPage(); + return false; + } + + # Request forgery checks. + if ( !self::getCreateaccountToken() ) { + self::setCreateaccountToken(); + $this->mainLoginForm( wfMsg( 'sessionfailure' ) ); + return false; + } + + # The user didn't pass a createaccount token + if ( !$this->mToken ) { + $this->mainLoginForm( wfMsg( 'sessionfailure' ) ); + return false; + } + + # Validate the createaccount token + if ( $this->mToken !== self::getCreateaccountToken() ) { + $this->mainLoginForm( wfMsg( 'sessionfailure' ) ); + return false; + } + + # Check permissions + if ( !$wgUser->isAllowed( 'createaccount' ) ) { + $this->userNotPrivilegedMessage(); + return false; + } elseif ( $wgUser->isBlockedFromCreateAccount() ) { + $this->userBlockedMessage(); + return false; + } + + $ip = wfGetIP(); + if ( $wgUser->isDnsBlacklisted( $ip, true /* check $wgProxyWhitelist */ ) ) { + $this->mainLoginForm( wfMsg( 'sorbs_create_account_reason' ) . ' (' . htmlspecialchars( $ip ) . ')' ); + return false; + } + + # Now create a dummy user ($u) and check if it is valid + $name = trim( $this->mName ); + $u = User::newFromName( $name, 'creatable' ); + if ( !is_object( $u ) ) { + $this->mainLoginForm( wfMsg( 'noname' ) ); + return false; + } + + if ( 0 != $u->idForName() ) { + $this->mainLoginForm( wfMsg( 'userexists' ) ); + return false; + } + + if ( 0 != strcmp( $this->mPassword, $this->mRetype ) ) { + $this->mainLoginForm( wfMsg( 'badretype' ) ); + return false; + } + + # check for minimal password length + $valid = $u->getPasswordValidity( $this->mPassword ); + if ( $valid !== true ) { + if ( !$this->mCreateaccountMail ) { + $this->mainLoginForm( wfMsgExt( $valid, array( 'parsemag' ), $wgMinimalPasswordLength ) ); + return false; + } else { + # do not force a password for account creation by email + # set invalid password, it will be replaced later by a random generated password + $this->mPassword = null; + } + } + + # if you need a confirmed email address to edit, then obviously you + # need an email address. + if ( $wgEmailConfirmToEdit && empty( $this->mEmail ) ) { + $this->mainLoginForm( wfMsg( 'noemailtitle' ) ); + return false; + } + + if( !empty( $this->mEmail ) && !User::isValidEmailAddr( $this->mEmail ) ) { + $this->mainLoginForm( wfMsg( 'invalidemailaddress' ) ); + return false; + } + + # Set some additional data so the AbortNewAccount hook can be used for + # more than just username validation + $u->setEmail( $this->mEmail ); + $u->setRealName( $this->mRealName ); + + $abortError = ''; + if( !wfRunHooks( 'AbortNewAccount', array( $u, &$abortError ) ) ) { + // Hook point to add extra creation throttles and blocks + wfDebug( "LoginForm::addNewAccountInternal: a hook blocked creation\n" ); + $this->mainLoginForm( $abortError ); + return false; + } + + if ( $wgAccountCreationThrottle && $wgUser->isPingLimitable() ) { + $key = wfMemcKey( 'acctcreate', 'ip', $ip ); + $value = $wgMemc->get( $key ); + if ( !$value ) { + $wgMemc->set( $key, 0, 86400 ); + } + if ( $value >= $wgAccountCreationThrottle ) { + $this->throttleHit( $wgAccountCreationThrottle ); + return false; + } + $wgMemc->incr( $key ); + } + + if( !$wgAuth->addUser( $u, $this->mPassword, $this->mEmail, $this->mRealName ) ) { + $this->mainLoginForm( wfMsg( 'externaldberror' ) ); + return false; + } + + self::clearCreateaccountToken(); + return $this->initUser( $u, false ); + } + + /** + * Actually add a user to the database. + * Give it a User object that has been initialised with a name. + * + * @param $u User object. + * @param $autocreate boolean -- true if this is an autocreation via auth plugin + * @return User object. + * @private + */ + function initUser( $u, $autocreate ) { + global $wgAuth; + + $u->addToDatabase(); + + if ( $wgAuth->allowPasswordChange() ) { + $u->setPassword( $this->mPassword ); + } + + $u->setEmail( $this->mEmail ); + $u->setRealName( $this->mRealName ); + $u->setToken(); + + $wgAuth->initUser( $u, $autocreate ); + + if ( $this->mExtUser ) { + $this->mExtUser->linkToLocal( $u->getId() ); + $email = $this->mExtUser->getPref( 'emailaddress' ); + if ( $email && !$this->mEmail ) { + $u->setEmail( $email ); + } + } + + $u->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 ); + $u->saveSettings(); + + # Update user count + $ssUpdate = new SiteStatsUpdate( 0, 0, 0, 0, 1 ); + $ssUpdate->doUpdate(); + + return $u; + } + + /** + * Internally authenticate the login request. + * + * This may create a local account as a side effect if the + * authentication plugin allows transparent local account + * creation. + */ + public function authenticateUserData() { + global $wgUser, $wgAuth; + if ( $this->mName == '' ) { + return self::NO_NAME; + } + + // We require a login token to prevent login CSRF + // Handle part of this before incrementing the throttle so + // token-less login attempts don't count towards the throttle + // but wrong-token attempts do. + + // If the user doesn't have a login token yet, set one. + if ( !self::getLoginToken() ) { + self::setLoginToken(); + return self::NEED_TOKEN; + } + // If the user didn't pass a login token, tell them we need one + if ( !$this->mToken ) { + return self::NEED_TOKEN; + } + + global $wgPasswordAttemptThrottle; + + $throttleCount = 0; + if ( is_array( $wgPasswordAttemptThrottle ) ) { + $throttleKey = wfMemcKey( 'password-throttle', wfGetIP(), md5( $this->mName ) ); + $count = $wgPasswordAttemptThrottle['count']; + $period = $wgPasswordAttemptThrottle['seconds']; + + global $wgMemc; + $throttleCount = $wgMemc->get( $throttleKey ); + if ( !$throttleCount ) { + $wgMemc->add( $throttleKey, 1, $period ); // start counter + } else if ( $throttleCount < $count ) { + $wgMemc->incr($throttleKey); + } else if ( $throttleCount >= $count ) { + return self::THROTTLED; + } + } + + // Validate the login token + if ( $this->mToken !== self::getLoginToken() ) { + return self::WRONG_TOKEN; + } + + // Load $wgUser now, and check to see if we're logging in as the same + // name. This is necessary because loading $wgUser (say by calling + // getName()) calls the UserLoadFromSession hook, which potentially + // creates the user in the database. Until we load $wgUser, checking + // for user existence using User::newFromName($name)->getId() below + // will effectively be using stale data. + if ( $wgUser->getName() === $this->mName ) { + wfDebug( __METHOD__.": already logged in as {$this->mName}\n" ); + return self::SUCCESS; + } + + $this->mExtUser = ExternalUser::newFromName( $this->mName ); + + # TODO: Allow some magic here for invalid external names, e.g., let the + # user choose a different wiki name. + $u = User::newFromName( $this->mName ); + if( !( $u instanceof User ) || !User::isUsableName( $u->getName() ) ) { + return self::ILLEGAL; + } + + $isAutoCreated = false; + if ( 0 == $u->getID() ) { + $status = $this->attemptAutoCreate( $u ); + if ( $status !== self::SUCCESS ) { + return $status; + } else { + $isAutoCreated = true; + } + } else { + global $wgExternalAuthType, $wgAutocreatePolicy; + if ( $wgExternalAuthType && $wgAutocreatePolicy != 'never' + && is_object( $this->mExtUser ) + && $this->mExtUser->authenticate( $this->mPassword ) ) { + # The external user and local user have the same name and + # password, so we assume they're the same. + $this->mExtUser->linkToLocal( $u->getID() ); + } + + $u->load(); + } + + // Give general extensions, such as a captcha, a chance to abort logins + $abort = self::ABORTED; + if( !wfRunHooks( 'AbortLogin', array( $u, $this->mPassword, &$abort ) ) ) { + return $abort; + } + + global $wgBlockDisablesLogin; + if (!$u->checkPassword( $this->mPassword )) { + if( $u->checkTemporaryPassword( $this->mPassword ) ) { + // The e-mailed temporary password should not be used for actu- + // al logins; that's a very sloppy habit, and insecure if an + // attacker has a few seconds to click "search" on someone's o- + // pen mail reader. + // + // Allow it to be used only to reset the password a single time + // to a new value, which won't be in the user's e-mail ar- + // chives. + // + // For backwards compatibility, we'll still recognize it at the + // login form to minimize surprises for people who have been + // logging in with a temporary password for some time. + // + // As a side-effect, we can authenticate the user's e-mail ad- + // dress if it's not already done, since the temporary password + // was sent via e-mail. + if( !$u->isEmailConfirmed() ) { + $u->confirmEmail(); + $u->saveSettings(); + } + + // At this point we just return an appropriate code/ indicating + // that the UI should show a password reset form; bot inter- + // faces etc will probably just fail cleanly here. + $retval = self::RESET_PASS; + } else { + $retval = ($this->mPassword == '') ? self::EMPTY_PASS : self::WRONG_PASS; + } + } elseif ( $wgBlockDisablesLogin && $u->isBlocked() ) { + // If we've enabled it, make it so that a blocked user cannot login + $retval = self::USER_BLOCKED; + } else { + $wgAuth->updateUser( $u ); + $wgUser = $u; + + // Please reset throttle for successful logins, thanks! + if($throttleCount) { + $wgMemc->delete($throttleKey); + } + + if ( $isAutoCreated ) { + // Must be run after $wgUser is set, for correct new user log + wfRunHooks( 'AuthPluginAutoCreate', array( $wgUser ) ); + } + + $retval = self::SUCCESS; + } + wfRunHooks( 'LoginAuthenticateAudit', array( $u, $this->mPassword, $retval ) ); + return $retval; + } + + /** + * Attempt to automatically create a user on login. Only succeeds if there + * is an external authentication method which allows it. + * @return integer Status code + */ + function attemptAutoCreate( $user ) { + global $wgAuth, $wgUser, $wgAutocreatePolicy; + + if ( $wgUser->isBlockedFromCreateAccount() ) { + wfDebug( __METHOD__.": user is blocked from account creation\n" ); + return self::CREATE_BLOCKED; + } + + /** + * If the external authentication plugin allows it, automatically cre- + * ate a new account for users that are externally defined but have not + * yet logged in. + */ + if ( $this->mExtUser ) { + # mExtUser is neither null nor false, so use the new ExternalAuth + # system. + if ( $wgAutocreatePolicy == 'never' ) { + return self::NOT_EXISTS; + } + if ( !$this->mExtUser->authenticate( $this->mPassword ) ) { + return self::WRONG_PLUGIN_PASS; + } + } else { + # Old AuthPlugin. + if ( !$wgAuth->autoCreate() ) { + return self::NOT_EXISTS; + } + if ( !$wgAuth->userExists( $user->getName() ) ) { + wfDebug( __METHOD__.": user does not exist\n" ); + return self::NOT_EXISTS; + } + if ( !$wgAuth->authenticate( $user->getName(), $this->mPassword ) ) { + wfDebug( __METHOD__.": \$wgAuth->authenticate() returned false, aborting\n" ); + return self::WRONG_PLUGIN_PASS; + } + } + + wfDebug( __METHOD__.": creating account\n" ); + $user = $this->initUser( $user, true ); + return self::SUCCESS; + } + + function processLogin() { + global $wgUser, $wgAuth; + + switch ( $this->authenticateUserData() ) { + case self::SUCCESS: + # We've verified now, update the real record + if( (bool)$this->mRemember != (bool)$wgUser->getOption( 'rememberpassword' ) ) { + $wgUser->setOption( 'rememberpassword', $this->mRemember ? 1 : 0 ); + $wgUser->saveSettings(); + } else { + $wgUser->invalidateCache(); + } + $wgUser->setCookies(); + self::clearLoginToken(); + + // Reset the throttle + $key = wfMemcKey( 'password-throttle', wfGetIP(), md5( $this->mName ) ); + global $wgMemc; + $wgMemc->delete( $key ); + + if( $this->hasSessionCookie() || $this->mSkipCookieCheck ) { + /* Replace the language object to provide user interface in + * correct language immediately on this first page load. + */ + global $wgLang, $wgRequest; + $code = $wgRequest->getVal( 'uselang', $wgUser->getOption( 'language' ) ); + $wgLang = Language::factory( $code ); + return $this->successfulLogin(); + } else { + return $this->cookieRedirectCheck( 'login' ); + } + break; + + case self::NEED_TOKEN: + case self::WRONG_TOKEN: + $this->mainLoginForm( wfMsg( 'sessionfailure' ) ); + break; + case self::NO_NAME: + case self::ILLEGAL: + $this->mainLoginForm( wfMsg( 'noname' ) ); + break; + case self::WRONG_PLUGIN_PASS: + $this->mainLoginForm( wfMsg( 'wrongpassword' ) ); + break; + case self::NOT_EXISTS: + if( $wgUser->isAllowed( 'createaccount' ) ){ + $this->mainLoginForm( wfMsgWikiHtml( 'nosuchuser', htmlspecialchars( $this->mName ) ) ); + } else { + $this->mainLoginForm( wfMsg( 'nosuchusershort', htmlspecialchars( $this->mName ) ) ); + } + break; + case self::WRONG_PASS: + $this->mainLoginForm( wfMsg( 'wrongpassword' ) ); + break; + case self::EMPTY_PASS: + $this->mainLoginForm( wfMsg( 'wrongpasswordempty' ) ); + break; + case self::RESET_PASS: + $this->resetLoginForm( wfMsg( 'resetpass_announce' ) ); + break; + case self::CREATE_BLOCKED: + $this->userBlockedMessage(); + break; + case self::THROTTLED: + $this->mainLoginForm( wfMsg( 'login-throttled' ) ); + break; + case self::USER_BLOCKED: + $this->mainLoginForm( wfMsgExt( 'login-userblocked', + array( 'parsemag', 'escape' ), $this->mName ) ); + break; + default: + throw new MWException( "Unhandled case value" ); + } + } + + function resetLoginForm( $error ) { + global $wgOut; + $wgOut->addHTML( Xml::element('p', array( 'class' => 'error' ), $error ) ); + $reset = new SpecialResetpass(); + $reset->execute( null ); + } + + /** + * @private + */ + function mailPassword() { + global $wgUser, $wgOut, $wgAuth; + + if ( wfReadOnly() ) { + $wgOut->readOnlyPage(); + return false; + } + + if( !$wgAuth->allowPasswordChange() ) { + $this->mainLoginForm( wfMsg( 'resetpass_forbidden' ) ); + return; + } + + # Check against blocked IPs so blocked users can't flood admins + # with password resets + if( $wgUser->isBlocked() ) { + $this->mainLoginForm( wfMsg( 'blocked-mailpassword' ) ); + return; + } + + # Check for hooks + $error = null; + if ( ! wfRunHooks( 'UserLoginMailPassword', array( $this->mName, &$error ) ) ) { + $this->mainLoginForm( $error ); + return; + } + + # If the user doesn't have a login token yet, set one. + if ( !self::getLoginToken() ) { + self::setLoginToken(); + $this->mainLoginForm( wfMsg( 'sessionfailure' ) ); + return; + } + + # If the user didn't pass a login token, tell them we need one + if ( !$this->mToken ) { + $this->mainLoginForm( wfMsg( 'sessionfailure' ) ); + return; + } + + # Check against the rate limiter + if( $wgUser->pingLimiter( 'mailpassword' ) ) { + $wgOut->rateLimited(); + return; + } + + if ( $this->mName == '' ) { + $this->mainLoginForm( wfMsg( 'noname' ) ); + return; + } + $u = User::newFromName( $this->mName ); + if( !$u instanceof User ) { + $this->mainLoginForm( wfMsg( 'noname' ) ); + return; + } + if ( 0 == $u->getID() ) { + $this->mainLoginForm( wfMsgWikiHtml( 'nosuchuser', htmlspecialchars( $u->getName() ) ) ); + return; + } + + # Validate the login token + if ( $this->mToken !== self::getLoginToken() ) { + $this->mainLoginForm( wfMsg( 'sessionfailure' ) ); + return; + } + + # Check against password throttle + if ( $u->isPasswordReminderThrottled() ) { + global $wgPasswordReminderResendTime; + # Round the time in hours to 3 d.p., in case someone is specifying + # minutes or seconds. + $this->mainLoginForm( wfMsgExt( 'throttled-mailpassword', array( 'parsemag' ), + round( $wgPasswordReminderResendTime, 3 ) ) ); + return; + } + + $result = $this->mailPasswordInternal( $u, true, 'passwordremindertitle', 'passwordremindertext' ); + if( WikiError::isError( $result ) ) { + $this->mainLoginForm( wfMsg( 'mailerror', $result->getMessage() ) ); + } else { + $this->mainLoginForm( wfMsg( 'passwordsent', $u->getName() ), 'success' ); + self::clearLoginToken(); + } + } + + + /** + * @param $u User object + * @param $throttle Boolean + * @param $emailTitle String: message name of email title + * @param $emailText String: message name of email text + * @return Mixed: true on success, WikiError on failure + * @private + */ + function mailPasswordInternal( $u, $throttle = true, $emailTitle = 'passwordremindertitle', $emailText = 'passwordremindertext' ) { + global $wgServer, $wgScript, $wgUser, $wgNewPasswordExpiry; + + if ( $u->getEmail() == '' ) { + return new WikiError( wfMsg( 'noemail', $u->getName() ) ); + } + $ip = wfGetIP(); + if( !$ip ) { + return new WikiError( wfMsg( 'badipaddress' ) ); + } + + wfRunHooks( 'User::mailPasswordInternal', array(&$wgUser, &$ip, &$u) ); + + $np = $u->randomPassword(); + $u->setNewpassword( $np, $throttle ); + $u->saveSettings(); + $userLanguage = $u->getOption( 'language' ); + $m = wfMsgExt( $emailText, array( 'parsemag', 'language' => $userLanguage ), $ip, $u->getName(), $np, + $wgServer . $wgScript, round( $wgNewPasswordExpiry / 86400 ) ); + $result = $u->sendMail( wfMsgExt( $emailTitle, array( 'parsemag', 'language' => $userLanguage ) ), $m ); + + return $result; + } + + /** + * @access private + */ + function returnToExternal( $auto = true, $returnto = NULL ) { + global $wgUser, $wgOut, $wgRequest; + + if ( $returnto == NULL ) { + $returnto = $wgRequest->getText( 'returnto' ); + } + + $sk = $wgUser->getSkin(); + if ( '' == $returnto ) { + $returnto = wfMsgForContent( 'mainpage' ); + } + if ( $auto ) { + $wgOut->addMeta( 'http:Refresh', '1;url=' . $returnto ); + } + $wgOut->addHTML( "\n<p>" ); + $sk = $wgUser->getSkin(); + $wgOut->addHTML($sk->makeExternalLink($returnto, "Return to $returnto")); + $wgOut->addHTML( "</p>\n" ); + } + + /** + * Run any hooks registered for logins, then HTTP redirect to + * $this->mReturnTo (or Main Page if that's undefined). Formerly we had a + * nice message here, but that's really not as useful as just being sent to + * wherever you logged in from. It should be clear that the action was + * successful, given the lack of error messages plus the appearance of your + * name in the upper right. + * + * @private + */ + function successfulLogin() { + global $wgUser, $wgOut; + + # Run any hooks; display injected HTML if any, else redirect + $injected_html = ''; + wfRunHooks('UserLoginComplete', array(&$wgUser, &$injected_html)); + + /** + * short circuit UCSC login and get to + * displaySuccessfulLogin no matter what + */ + if( 1 || $injected_html !== '' ) { + $this->displaySuccessfulLogin( 'loginsuccess', $injected_html ); + } else { + $titleObj = Title::newFromText( $this->mReturnTo ); + if ( !$titleObj instanceof Title ) { + $titleObj = Title::newMainPage(); + } + $wgOut->redirect( $titleObj->getFullURL( $this->mReturnToQuery ) ); + } + } + + /** + * Run any hooks registered for logins, then display a message welcoming + * the user. + * + * @private + */ + function successfulCreation() { + global $wgUser, $wgOut; + + # Run any hooks; display injected HTML + $injected_html = ''; + wfRunHooks('UserLoginComplete', array(&$wgUser, &$injected_html)); + + $this->displaySuccessfulLogin( 'welcomecreation', $injected_html ); + } + + /** + * Display a "login successful" page. + */ + private function displaySuccessfulLogin( $msgname, $injected_html ) { + global $wgOut, $wgUser; + + $wgOut->setPageTitle( wfMsg( 'loginsuccesstitle' ) ); + $wgOut->setRobotPolicy( 'noindex,nofollow' ); + $wgOut->setArticleRelated( false ); + $wgOut->addWikiMsg( $msgname, $wgUser->getName() ); + $wgOut->addHTML( $injected_html ); + + if ( !empty( $this->mReturnTo ) ) { + $this->returnToExternal( true, $this->mReturnTo ); + } else { + $wgOut->returnToMain( null ); + } + } + + /** */ + function userNotPrivilegedMessage($errors) { + global $wgOut; + + $wgOut->setPageTitle( wfMsg( 'permissionserrors' ) ); + $wgOut->setRobotPolicy( 'noindex,nofollow' ); + $wgOut->setArticleRelated( false ); + + $wgOut->addWikitext( $wgOut->formatPermissionsErrorMessage( $errors, 'createaccount' ) ); + // Stuff that might want to be added at the end. For example, instruc- + // tions if blocked. + $wgOut->addWikiMsg( 'cantcreateaccount-nonblock-text' ); + + $wgOut->returnToMain( false ); + } + + /** */ + function userBlockedMessage() { + global $wgOut, $wgUser; + + # Let's be nice about this, it's likely that this feature will be used + # for blocking large numbers of innocent people, e.g. range blocks on + # schools. Don't blame it on the user. There's a small chance that it + # really is the user's fault, i.e. the username is blocked and they + # haven't bothered to log out before trying to create an account to + # evade it, but we'll leave that to their guilty conscience to figure + # out. + + $wgOut->setPageTitle( wfMsg( 'cantcreateaccounttitle' ) ); + $wgOut->setRobotPolicy( 'noindex,nofollow' ); + $wgOut->setArticleRelated( false ); + + $ip = wfGetIP(); + $blocker = User::whoIs( $wgUser->mBlock->mBy ); + $block_reason = $wgUser->mBlock->mReason; + + if ( strval( $block_reason ) === '' ) { + $block_reason = wfMsg( 'blockednoreason' ); + } + $wgOut->addWikiMsg( 'cantcreateaccount-text', $ip, $block_reason, $blocker ); + $wgOut->returnToMain( false ); + } + + /** + * @private + */ + function mainLoginForm( $msg, $msgtype = 'error' ) { + global $wgUser, $wgOut, $wgHiddenPrefs, $wgEnableEmail; + global $wgCookiePrefix, $wgLoginLanguageSelector; + global $wgAuth, $wgEmailConfirmToEdit, $wgCookieExpiration; + + $titleObj = SpecialPage::getTitleFor( 'UserloginUCSC' ); + + if ( $this->mType == 'signup' ) { + // Block signup here if in readonly. Keeps user from + // going through the process (filling out data, etc) + // and being informed later. + if ( wfReadOnly() ) { + $wgOut->readOnlyPage(); + return; + } elseif ( $wgUser->isBlockedFromCreateAccount() ) { + $this->userBlockedMessage(); + return; + } elseif ( count( $permErrors = $titleObj->getUserPermissionsErrors( 'createaccount', $wgUser, true ) )>0 ) { + $wgOut->showPermissionsErrorPage( $permErrors, 'createaccount' ); + return; + } + } + + if ( $this->mName == '' ) { + if ( $wgUser->isLoggedIn() ) { + $this->mName = $wgUser->getName(); + } else { + $this->mName = isset( $_COOKIE[$wgCookiePrefix.'UserName'] ) ? $_COOKIE[$wgCookiePrefix.'UserName'] : null; + } + } + + $titleObj = SpecialPage::getTitleFor( 'UserloginUCSC' ); + + if ( $this->mType == 'signup' ) { + $template = new UsercreateTemplate(); + $q = 'action=submitlogin&type=signup'; + $linkq = 'type=login'; + $linkmsg = 'gotaccount'; + } else { + $template = new UserloginUCSCTemplate(); + $q = 'action=submitlogin&type=login'; + $linkq = 'type=signup'; + $linkmsg = 'nologin'; + } + + if ( !empty( $this->mReturnTo ) ) { + $returnto = '&returnto=' . wfUrlencode( $this->mReturnTo ); + if ( !empty( $this->mReturnToQuery ) ) + $returnto .= '&returntoquery=' . + wfUrlencode( $this->mReturnToQuery ); + $q .= $returnto; + $linkq .= $returnto; + } + + # Pass any language selection on to the mode switch link + if( $wgLoginLanguageSelector && $this->mLanguage ) + $linkq .= '&uselang=' . $this->mLanguage; + + $link = '<a href="' . htmlspecialchars ( $titleObj->getLocalUrl( $linkq ) ) . '">'; + $link .= wfMsgHtml( $linkmsg . 'link' ); # Calling either 'gotaccountlink' or 'nologinlink' + $link .= '</a>'; + + # Don't show a "create account" link if the user can't + if( $this->showCreateOrLoginLink( $wgUser ) ) + $template->set( 'link', wfMsgWikiHtml( $linkmsg, $link ) ); + else + $template->set( 'link', '' ); + + $template->set( 'header', '' ); + $template->set( 'name', $this->mName ); + $template->set( 'password', $this->mPassword ); + $template->set( 'retype', $this->mRetype ); + $template->set( 'email', $this->mEmail ); + $template->set( 'realname', $this->mRealName ); + $template->set( 'domain', $this->mDomain ); + + $template->set( 'action', $titleObj->getLocalUrl( $q ) ); + $template->set( 'message', $msg ); + $template->set( 'messagetype', $msgtype ); + $template->set( 'createemail', $wgEnableEmail && $wgUser->isLoggedIn() ); + $template->set( 'userealname', !in_array( 'realname', $wgHiddenPrefs ) ); + $template->set( 'useemail', $wgEnableEmail ); + $template->set( 'emailrequired', $wgEmailConfirmToEdit ); + $template->set( 'canreset', $wgAuth->allowPasswordChange() ); + $template->set( 'canremember', ( $wgCookieExpiration > 0 ) ); + $template->set( 'remember', $wgUser->getOption( 'rememberpassword' ) or $this->mRemember ); + + if ( $this->mType == 'signup' ) { + if ( !self::getCreateaccountToken() ) { + self::setCreateaccountToken(); + } + $template->set( 'token', self::getCreateaccountToken() ); + } else { + if ( !self::getLoginToken() ) { + self::setLoginToken(); + } + $template->set( 'token', self::getLoginToken() ); + } + + # Prepare language selection links as needed + if( $wgLoginLanguageSelector ) { + $template->set( 'languages', $this->makeLanguageSelector() ); + if( $this->mLanguage ) + $template->set( 'uselang', $this->mLanguage ); + } + + // Give authentication and captcha plugins a chance to modify the form + $wgAuth->modifyUITemplate( $template, $this->mType ); + if ( $this->mType == 'signup' ) { + wfRunHooks( 'UserCreateForm', array( &$template ) ); + } else { + wfRunHooks( 'UserLoginForm', array( &$template ) ); + } + + //Changes the title depending on permissions for creating account + if ( $wgUser->isAllowed( 'createaccount' ) ) { + $wgOut->setPageTitle( wfMsg( 'userlogin' ) ); + } else { + $wgOut->setPageTitle( wfMsg( 'userloginnocreate' ) ); + } + + $wgOut->setRobotPolicy( 'noindex,nofollow' ); + $wgOut->setArticleRelated( false ); + $wgOut->disallowUserJs(); // just in case... + $wgOut->addTemplate( $template ); + } + + /** + * @private + */ + function showCreateOrLoginLink( &$user ) { + if( $this->mType == 'signup' ) { + return( true ); + } elseif( $user->isAllowed( 'createaccount' ) ) { + return( true ); + } else { + return( false ); + } + } + + /** + * Check if a session cookie is present. + * + * This will not pick up a cookie set during _this_ request, but is meant + * to ensure that the client is returning the cookie which was set on a + * previous pass through the system. + * + * @private + */ + function hasSessionCookie() { + global $wgDisableCookieCheck, $wgRequest; + return $wgDisableCookieCheck ? true : $wgRequest->checkSessionCookie(); + } + + /** + * Get the login token from the current session + */ + public static function getLoginToken() { + global $wgRequest; + return $wgRequest->getSessionData( 'wsLoginToken' ); + } + + /** + * Randomly generate a new login token and attach it to the current session + */ + public static function setLoginToken() { + global $wgRequest; + // Use User::generateToken() instead of $user->editToken() + // because the latter reuses $_SESSION['wsEditToken'] + $wgRequest->setSessionData( 'wsLoginToken', User::generateToken() ); + } + + /** + * Remove any login token attached to the current session + */ + public static function clearLoginToken() { + global $wgRequest; + $wgRequest->setSessionData( 'wsLoginToken', null ); + } + + /** + * Get the createaccount token from the current session + */ + public static function getCreateaccountToken() { + global $wgRequest; + return $wgRequest->getSessionData( 'wsCreateaccountToken' ); + } + + /** + * Randomly generate a new createaccount token and attach it to the current session + */ + public static function setCreateaccountToken() { + global $wgRequest; + $wgRequest->setSessionData( 'wsCreateaccountToken', User::generateToken() ); + } + + /** + * Remove any createaccount token attached to the current session + */ + public static function clearCreateaccountToken() { + global $wgRequest; + $wgRequest->setSessionData( 'wsCreateaccountToken', null ); + } + + /** + * @private + */ + function cookieRedirectCheck( $type ) { + global $wgOut; + + $titleObj = SpecialPage::getTitleFor( 'UserloginUCSC' ); + $query = array( 'wpCookieCheck' => $type ); + if ( $this->mReturnTo ) $query['returnto'] = $this->mReturnTo; + $check = $titleObj->getFullURL( $query ); + + return $wgOut->redirect( $check ); + } + + /** + * @private + */ + function onCookieRedirectCheck( $type ) { + if ( !$this->hasSessionCookie() ) { + if ( $type == 'new' ) { + return $this->mainLoginForm( wfMsgExt( 'nocookiesnew', array( 'parseinline' ) ) ); + } else if ( $type == 'login' ) { + return $this->mainLoginForm( wfMsgExt( 'nocookieslogin', array( 'parseinline' ) ) ); + } else { + # shouldn't happen + return $this->mainLoginForm( wfMsg( 'error' ) ); + } + } else { + return $this->successfulLogin(); + } + } + + /** + * @private + */ + function throttleHit( $limit ) { + $this->mainLoginForm( wfMsgExt( 'acct_creation_throttle_hit', array( 'parseinline' ), $limit ) ); + } + + /** + * Produce a bar of links which allow the user to select another language + * during login/registration but retain "returnto" + * + * @return string + */ + function makeLanguageSelector() { + global $wgLang; + + $msg = wfMsgForContent( 'loginlanguagelinks' ); + if( $msg != '' && !wfEmptyMsg( 'loginlanguagelinks', $msg ) ) { + $langs = explode( "\n", $msg ); + $links = array(); + foreach( $langs as $lang ) { + $lang = trim( $lang, '* ' ); + $parts = explode( '|', $lang ); + if (count($parts) >= 2) { + $links[] = $this->makeLanguageSelectorLink( $parts[0], $parts[1] ); + } + } + return count( $links ) > 0 ? wfMsgHtml( 'loginlanguagelabel', $wgLang->pipeList( $links ) ) : ''; + } else { + return ''; + } + } + + /** + * Create a language selector link for a particular language + * Links back to this page preserving type and returnto + * + * @param $text Link text + * @param $lang Language code + */ + function makeLanguageSelectorLink( $text, $lang ) { + global $wgUser; + $self = SpecialPage::getTitleFor( 'UserloginUCSC' ); + $attr = array( 'uselang' => $lang ); + if( $this->mType == 'signup' ) + $attr['type'] = 'signup'; + if( $this->mReturnTo ) + $attr['returnto'] = $this->mReturnTo; + $skin = $wgUser->getSkin(); + return $skin->linkKnown( + $self, + htmlspecialchars( $text ), + array(), + $attr + ); + } +}