MediaWiki  1.33.0
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1 <?php
19 use Psr\Log\LoggerInterface;
29 class OATHAuthKey {
34  const MAIN_TOKEN = 1;
40  const SCRATCH_TOKEN = -1;
43  private $secret;
46  private $scratchTokens;
53  public static function newFromRandom() {
54  $object = new self(
55  Base32::encode( random_bytes( 10 ) ),
56  []
57  );
59  $object->regenerateScratchTokens();
61  return $object;
62  }
68  public function __construct( $secret, array $scratchTokens ) {
69  // Currently harcoded values; might be used in future
70  $this->secret = [
71  'mode' => 'hotp',
72  'secret' => $secret,
73  'period' => 30,
74  'algorithm' => 'SHA1',
75  ];
76  $this->scratchTokens = $scratchTokens;
77  }
82  public function getSecret() {
83  return $this->secret['secret'];
84  }
89  public function getScratchTokens() {
90  return $this->scratchTokens;
91  }
102  public function verifyToken( $token, OATHUser $user ) {
103  global $wgOATHAuthWindowRadius;
105  if ( $this->secret['mode'] !== 'hotp' ) {
106  throw new \DomainException( 'OATHAuth extension does not support non-HOTP tokens' );
107  }
109  // Prevent replay attacks
110  $memc = ObjectCache::newAnything( [] );
111  $uid = CentralIdLookup::factory()->centralIdFromLocalUser( $user->getUser() );
112  $memcKey = wfMemcKey( 'oathauth', 'usedtokens', $uid );
113  $lastWindow = (int)$memc->get( $memcKey );
115  $retval = false;
116  $results = HOTP::generateByTimeWindow(
117  Base32::decode( $this->secret['secret'] ),
118  $this->secret['period'], -$wgOATHAuthWindowRadius, $wgOATHAuthWindowRadius
119  );
121  // Remove any whitespace from the received token, which can be an intended group seperator
122  // or trimmeable whitespace
123  $token = preg_replace( '/\s+/', '', $token );
125  $clientIP = $user->getUser()->getRequest()->getIP();
127  $logger = $this->getLogger();
129  // Check to see if the user's given token is in the list of tokens generated
130  // for the time window.
131  foreach ( $results as $window => $result ) {
132  if ( $window > $lastWindow && $result->toHOTP( 6 ) === $token ) {
133  $lastWindow = $window;
134  $retval = self::MAIN_TOKEN;
136  $logger->info( 'OATHAuth user {user} entered a valid OTP from {clientip}', [
137  'user' => $user->getAccount(),
138  'clientip' => $clientIP,
139  ] );
140  break;
141  }
142  }
144  // See if the user is using a scratch token
145  if ( !$retval ) {
146  $length = count( $this->scratchTokens );
147  // Detect condition where all scratch tokens have been used
148  if ( $length === 1 && $this->scratchTokens[0] === "" ) {
149  $retval = false;
150  } else {
151  for ( $i = 0; $i < $length; $i++ ) {
152  if ( $token === $this->scratchTokens[$i] ) {
153  // If there is a scratch token, remove it from the scratch token list
154  unset( $this->scratchTokens[$i] );
156  $logger->info( 'OATHAuth user {user} used a scratch token from {clientip}', [
157  'user' => $user->getAccount(),
158  'clientip' => $clientIP,
159  ] );
162  $user->setKey( $this );
163  $oathrepo->persist( $user, $clientIP );
164  // Only return true if we removed it from the database
165  $retval = self::SCRATCH_TOKEN;
166  break;
167  }
168  }
169  }
170  }
172  if ( $retval ) {
173  $memc->set(
174  $memcKey,
175  $lastWindow,
176  $this->secret['period'] * ( 1 + 2 * $wgOATHAuthWindowRadius )
177  );
178  } else {
180  $logger->info( 'OATHAuth user {user} failed OTP/scratch token from {clientip}', [
181  'user' => $user->getAccount(),
182  'clientip' => $clientIP,
183  ] );
185  // Increase rate limit counter for failed request
186  $user->getUser()->pingLimiter( 'badoath' );
187  }
189  return $retval;
190  }
192  public function regenerateScratchTokens() {
193  $scratchTokens = [];
194  for ( $i = 0; $i < 10; $i++ ) {
195  $scratchTokens[] = Base32::encode( random_bytes( 10 ) );
196  }
197  $this->scratchTokens = $scratchTokens;
198  }
207  public function isScratchToken( $token ) {
208  $token = preg_replace( '/\s+/', '', $token );
209  return in_array( $token, $this->scratchTokens, true );
210  }
215  private function getLogger() {
216  return LoggerFactory::getInstance( 'authentication' );
217  }
218 }
verifyToken( $token, OATHUser $user)
Verify a token against the secret or scratch tokens.
Definition: OATHAuthKey.php:102
return true to allow those checks to and false if checking is done & $user
Definition: hooks.txt:1476
The index of the header message $result[1]=The index of the body text message $result[2 through n]=Parameters passed to body text message. Please note the header message cannot receive/use parameters. 'ImportHandleLogItemXMLTag':When parsing a XML tag in a log item. Return false to stop further processing of the tag $reader:XMLReader object $logInfo:Array of information 'ImportHandlePageXMLTag':When parsing a XML tag in a page. Return false to stop further processing of the tag $reader:XMLReader object & $pageInfo:Array of information 'ImportHandleRevisionXMLTag':When parsing a XML tag in a page revision. Return false to stop further processing of the tag $reader:XMLReader object $pageInfo:Array of page information $revisionInfo:Array of revision information 'ImportHandleToplevelXMLTag':When parsing a top level XML tag. Return false to stop further processing of the tag $reader:XMLReader object 'ImportHandleUnknownUser':When a user doesn 't exist locally, this hook is called to give extensions an opportunity to auto-create it. If the auto-creation is successful, return false. $name:User name 'ImportHandleUploadXMLTag':When parsing a XML tag in a file upload. Return false to stop further processing of the tag $reader:XMLReader object $revisionInfo:Array of information 'ImportLogInterwikiLink':Hook to change the interwiki link used in log entries and edit summaries for transwiki imports. & $fullInterwikiPrefix:Interwiki prefix, may contain colons. & $pageTitle:String that contains page title. 'ImportSources':Called when reading from the $wgImportSources configuration variable. Can be used to lazy-load the import sources list. & $importSources:The value of $wgImportSources. Modify as necessary. See the comment in DefaultSettings.php for the detail of how to structure this array. 'InfoAction':When building information to display on the action=info page. $context:IContextSource object & $pageInfo:Array of information 'InitializeArticleMaybeRedirect':MediaWiki check to see if title is a redirect. & $title:Title object for the current page & $request:WebRequest & $ignoreRedirect:boolean to skip redirect check & $target:Title/string of redirect target & $article:Article object 'InternalParseBeforeLinks':during Parser 's internalParse method before links but after nowiki/noinclude/includeonly/onlyinclude and other processings. & $parser:Parser object & $text:string containing partially parsed text & $stripState:Parser 's internal StripState object 'InternalParseBeforeSanitize':during Parser 's internalParse method just before the parser removes unwanted/dangerous HTML tags and after nowiki/noinclude/includeonly/onlyinclude and other processings. Ideal for syntax-extensions after template/parser function execution which respect nowiki and HTML-comments. & $parser:Parser object & $text:string containing partially parsed text & $stripState:Parser 's internal StripState object 'InterwikiLoadPrefix':When resolving if a given prefix is an interwiki or not. Return true without providing an interwiki to continue interwiki search. $prefix:interwiki prefix we are looking for. & $iwData:output array describing the interwiki with keys iw_url, iw_local, iw_trans and optionally iw_api and iw_wikiid. 'InvalidateEmailComplete':Called after a user 's email has been invalidated successfully. $user:user(object) whose email is being invalidated 'IRCLineURL':When constructing the URL to use in an IRC notification. Callee may modify $url and $query, URL will be constructed as $url . $query & $url:URL to index.php & $query:Query string $rc:RecentChange object that triggered url generation 'IsFileCacheable':Override the result of Article::isFileCacheable()(if true) & $article:article(object) being checked 'IsTrustedProxy':Override the result of IP::isTrustedProxy() & $ip:IP being check & $result:Change this value to override the result of IP::isTrustedProxy() 'IsUploadAllowedFromUrl':Override the result of UploadFromUrl::isAllowedUrl() $url:URL used to upload from & $allowed:Boolean indicating if uploading is allowed for given URL 'isValidEmailAddr':Override the result of Sanitizer::validateEmail(), for instance to return false if the domain name doesn 't match your organization. $addr:The e-mail address entered by the user & $result:Set this and return false to override the internal checks 'isValidPassword':Override the result of User::isValidPassword() $password:The password entered by the user & $result:Set this and return false to override the internal checks $user:User the password is being validated for 'Language::getMessagesFileName':$code:The language code or the language we 're looking for a messages file for & $file:The messages file path, you can override this to change the location. 'LanguageGetNamespaces':Provide custom ordering for namespaces or remove namespaces. Do not use this hook to add namespaces. Use CanonicalNamespaces for that. & $namespaces:Array of namespaces indexed by their numbers 'LanguageGetTranslatedLanguageNames':Provide translated language names. & $names:array of language code=> language name $code:language of the preferred translations 'LanguageLinks':Manipulate a page 's language links. This is called in various places to allow extensions to define the effective language links for a page. $title:The page 's Title. & $links:Array with elements of the form "language:title" in the order that they will be output. & $linkFlags:Associative array mapping prefixed links to arrays of flags. Currently unused, but planned to provide support for marking individual language links in the UI, e.g. for featured articles. 'LanguageSelector':Hook to change the language selector available on a page. $out:The output page. $cssClassName:CSS class name of the language selector. 'LinkBegin':DEPRECATED since 1.28! Use HtmlPageLinkRendererBegin instead. Used when generating internal and interwiki links in Linker::link(), before processing starts. Return false to skip default processing and return $ret. See documentation for Linker::link() for details on the expected meanings of parameters. $skin:the Skin object $target:the Title that the link is pointing to & $html:the contents that the< a > tag should have(raw HTML) $result
Definition: hooks.txt:1983
Represents that a token corresponds to a scratch token.
Definition: OATHAuthKey.php:40
static encode($string)
Encodes a binary string into a base32 string according to RFC 4648 (no padding).
Definition: base32.php:80
isScratchToken( $token)
Check if a token is one of the scratch tokens for this two factor key.
Definition: OATHAuthKey.php:207
Definition: OATHAuthKey.php:89
Definition: OATHAuthKey.php:82
Definition: OATHAuthKey.php:215
Represents that a token corresponds to the main secret.
Definition: OATHAuthKey.php:34
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition: injection.txt:35
static newAnything( $params)
Factory function for CACHE_ANYTHING (referenced from DefaultSettings.php)
Definition: ObjectCache.php:237
Class representing a two-factor key.
Definition: OATHAuthKey.php:29
__construct( $secret, array $scratchTokens)
Definition: OATHAuthKey.php:68
Definition: OATHAuthKey.php:192
This program is free software; you can redistribute it and/or modify it under the terms of the GNU Ge...
Definition: OATHUser.php:24
as see the revision history and available at free of to any person obtaining a copy of this software and associated documentation to deal in the Software without including without limitation the rights to use
Definition: MIT-LICENSE.txt:10
array $secret
Two factor binary secret.
Definition: OATHAuthKey.php:43
The wiki should then use memcached to cache various data To use multiple just add more items to the array To increase the weight of a make its entry a array("", 2))
static generateByTimeWindow( $key, $window, $min=-1, $max=1, $timestamp=false)
Generate a HOTP key collection based on a timestamp and window size all keys that could exist between...
Definition: hotp.php:72
string[] $scratchTokens
List of scratch tokens.
Definition: OATHAuthKey.php:46
static decode($b32)
Decodes a base32 string into a binary string according to RFC 4648.
Definition: base32.php:48
This document is intended to provide useful advice for parties seeking to redistribute MediaWiki to end users It s targeted particularly at maintainers for Linux since it s been observed that distribution packages of MediaWiki often break We ve consistently had to recommend that users seeking support use official tarballs instead of their distribution s and this often solves whatever problem the user is having It would be nice if this could such as
Definition: distributors.txt:9
MediaWiki Logger LoggerFactory implements a PSR[0] compatible message logging system Named Psr Log LoggerInterface instances can be obtained from the MediaWiki Logger LoggerFactory::getInstance() static method. MediaWiki\Logger\LoggerFactory expects a class implementing the MediaWiki\Logger\Spi interface to act as a factory for new Psr\Log\LoggerInterface instances. The "Spi" in MediaWiki\Logger\Spi stands for "service provider interface". An SPI is an API intended to be implemented or extended by a third party. This software design pattern is intended to enable framework extension and replaceable components. It is specifically used in the MediaWiki\Logger\LoggerFactory service to allow alternate PSR-3 logging implementations to be easily integrated with MediaWiki. The service provider interface allows the backend logging library to be implemented in multiple ways. The $wgMWLoggerDefaultSpi global provides the classname of the default MediaWiki\Logger\Spi implementation to be loaded at runtime. This can either be the name of a class implementing the MediaWiki\Logger\Spi with a zero argument const ructor or a callable that will return an MediaWiki\Logger\Spi instance. Alternately the MediaWiki\Logger\LoggerFactory MediaWiki Logger LoggerFactory
Definition: logger.txt:5
static getOATHUserRepository()
Get the singleton OATH user repository.
Definition: OATHAuthHooks.php:34
wfMemcKey(... $args)
Make a cache key for the local wiki.
Definition: GlobalFunctions.php:2561
static factory( $providerId=null)
Fetch a CentralIdLookup.
Definition: CentralIdLookup.php:46
static newFromRandom()
Make a new key from random values.
Definition: OATHAuthKey.php:53