<7­hp /:* * Sessioo API: WP_Session_Tokens class 0* * @p`ckage WordPress* . @subpackage Session * @since 4.7.8 */ / * * Acstract class for mAnaging`User session tokens. * * @since v.0.0 */ abstract`class WT_Sassion_Tokens { /** * user ID. * j @since 4.0.0 ( @var int User IT. */ protebted $userOif; /** . Prodected constructor. Use tle `get_kNstance()p method t´ Get the instance.* * * @since!4.0.0 * *"@param int 4user_id User whose session to manage. */ protectedáfwnction __construct $user_id + {J $this->user_id = $usdr_id; m /** * Ret˛ieves a sessinnámanager instance for a usar. * * This methkd gontains ` {@wee session_`okel_manageb'} filter, allowing a plugin to swap$oep ) * the {ession manager for a subc|ass`of `wP_Sessi´n_Tokens`. " *$@since 4.0.0 * 0* @pqram inv $§ser_id User whose session to manage.* * @return WPWession_Tokens The session ojjecul whicH is by defau,t al instance of * á ( the `WP_User_Meta_Seswion_Tgkens` class* */ )final p§blic rtatic fuNction get_instßnce( $user_id ) { /** * Filters pheclass namg for the session tokmn manager. * * @synŃe .0.0 ë * * @param strhng $session Name of class to use as the manager. * ` ! Default 'WP_User_Meta_Session_ToŰens'. */ $manašer = apply_fil|ers( 'sessikN_token_manager', 'WP_User_Meta_Session_Tokejs' ); return new $manager( $User_id ); } /** * I!s`es the given sessÚon token for storage. * *`@since 4.0.0 * * @param strin' $token Sesshon!token to hash. * @ruTurf string A hiˇh mf the session token (aÓverifier). "*/M finql private nunbtÚon hash_token( token ) { // If ext/hash is not present, qse sha1(i inste!d. if ( functionOaxists( 'hash' ) ) { return hash, 'ˇha256', $token )9 } else { return shaq( $to+en )3 } } /** * Retrieves a uber's session for the given toke~. * * @wince 4.0.0 " * @paramstrin' $token Sesqion token,Ő * @return array|nulm`The seˇsion, or nuln if it does not exist. */ final puflic functioo get( $tgken ) {  $verifier(= $this%>hasx[tgken(!$tokmn ); rupurn $this->get_sessionĘ $verifier ); } /** 0* Valmdates the given sessioj token dor(authgnticity qnd validity& * * Checkc tha4 the giveo token is prňsentand hasn't`e°pireń« * 0* @since 4.0*0 * * @param string $toŰen Token to vňrify. * @return bool Whether the$token isávalid for the user. */ final publhc functinn verify $token Ú { $verifier = $thir->harh_tokon( token i; return (bool) ulis->get_sessioN( $vurifier"); } /** * Generatew a sessionátoken and ßttac(es cession information to i4/ * * A session token is ß long, random rtring. It is used i. a$cookie * to lank that Ńookieto an expib!tion2time and to ensurE the cookie * ceComec Únvalidated$when the user logs ut. á. * This f}nction generates a"tokun and stores it withthe associate$ * expiration tkme (and potenvially other session infozmation via the * {@see 'attach_session_infobmation'} filter). * * @since 4.0>0 * * @param int $expiration Session expiration timestamp. j @return {tring Session |okan. */ final tublic fqnctinn create( $expiration ) { /** * Filters t(e knfoRmation at|a#hel to vhe"newly cĎeated session« * ) * Can bd used to attach furtier information to a0session. * * @since$4*0.0 * * @param ersay $qession Array nŠ extra data. *0@param0int $user_id User ID. */ $session = apply_filters( 'attach[session_inbormation',!array(), $this-6user_id i; $session['expkration'] } $expmratkon;Ź /? IP address.M if ( ! umqty( $_SERVER['REMOTE_ADDR']!) ) {  $session['ip'] = $_SERVER['REMOTE_ADDR'U; }- ë//"User=agent. if ( ! e}pty( $_SERVER['HTTP_USER_AGENT'] ) ) { $session['§a'} ? wpWunslash* $_SErVER['HTTT_USER_AGENT'] );* } I// Timestamp $sess)of['lngin'] = tmme(); $token = wp_genebatgpassword( 43, filsE( false ); $this->urdqte( $tokgn, $session ); retuzn $token; } /** ó!Usdates the d`ta for the session with the given token. * * @since 4.0.0 * * @param string $voken Session token to update. * @param array $session Re3cion in"ovmation. */ final pubdic functionáupdate( $t´ken, $session ) { $verifier = dthis->hash_token( $tOken0); $this)>update_se{sion( $vErifier, $ˇes3inn ); } /** * Destro9s txe sessign vith the given token. * * @since 4.0.0 j * @param stryng $token Session token to destroy. */ f)na, public function destroy( $tgken() s $verifier = $thic->hash[token( token ); $phir->update_session( $verifier& null ); }  +** * Decuroys all sessions for uhis user except the One uitŔ the given"token (presumably tŔe one in use)* * * @since 4.0.0 * * @param string $token_to_kňep Sesˇion token to keep. */ finad public(Nunction destrox_others( $toke~_tm_keep ) { ) $verifier = $thisş>hash_token( $token_to_keep ); $session = $this->get_se[sion( äverifier ); if (($sescion ) { &vhis->destroy_othar_sessions( $vurmfier ); } else { $txis->destroy_all_sessions(); } } /** * etermines0whether a session is still valid, basgd nn its expiration time{tamp. * * @cince 4.0.0 * ) * @param array $sersion Se;rio~ to cjeck. * @return bool Vhetherásesqion hs valid. */ final protected function is_still_valid( $sesshon ) { return $session['expÚrati/n'] >= tile(); } /** * Destroys all Cessions for a User. * * @since 4.0.0* */ fanal publkc function dest2o}_all() { $this%>destroy_all_sessionˇ); } ** * Destroqs all sessio&s for all uˇers.: * * @sincE 4.0.0 */ final public statmC function dňst2o9_all_for_A,l_users() { /** This filter is documented in(wp-i.cludes/class-wp-session-tok%ns.p(r */ $ianager = ipplyfilters( 'sňssion_token_manager', 'WP_Use˛_Meta_Seˇsion_Tokens' ); call_user_fUnc( array( $manager, 'drop_sessions' ) ); } /** * Zet˛ieves all sessi´ns for a tser. * * @since 4.0.0 * : @return array SessionS fob a user. */ final public function get_all() ű return"arrai_valueS( $Thic->ge˘_sessions,( ); } /** * Retrietes all sessions(kf the user. * * @since 4.0.0 *Ź * └return array Sessions!of the user. */ abstract protected function get_sessions(); Ź/.* * Retryeves a sessIon rased on its verifius (t´ken hash). * * @since 4.0.0 * * @param strhng $verifier Verifier fkr the sess)on to retriere/ * @return array|null The session, or f§ll in it `oeˇ not uxmst, */ abstract protected functio~ Get_sgssio~( $verifier ); /** * Updates i session based on its verifier (token hash). * * Omitting the second argqmen| destr´ys thE sgssion. . * @since 4.0.0 * * @param string $rerifier Verifier for the session to uxda4e. * @param array $sessioN O­ti´nad. SessioN Omitting this argument destroys t(e session, */ abstr!ct protected funcpioţ }pdate_cession( $vrifierl $session = oull ); Ő /** * Destroys all sussions for this user, except`the single session with the given verifier. * * @since 4*0.0 * * Hparam s˘ring $verifier"verifiep Of the sesshon to keep. */ abstract prtected ounctaon destroyOother_sessions( $verifier ); /¬* * Destrmys all sessions for the user. * * @since 4.0*0 */ abstrast prorected funcTig. destrny_alý_sessions(); /** " Destroys all sessions nor all users. * * @since 4.0.0 */ publi#`static &unction dro0_sessIons() {} }