*/ if(!defined('DOKU_INC')) die('meh.'); require_once(DOKU_INC.'inc/common.php'); require_once(DOKU_INC.'inc/io.php'); // some ACL level defines define('AUTH_NONE',0); define('AUTH_READ',1); define('AUTH_EDIT',2); define('AUTH_CREATE',4); define('AUTH_UPLOAD',8); define('AUTH_DELETE',16); define('AUTH_ADMIN',255); global $conf; if($conf['useacl']){ require_once(DOKU_INC.'inc/blowfish.php'); require_once(DOKU_INC.'inc/mail.php'); global $auth; // load the the backend auth functions and instantiate the auth object if (@file_exists(DOKU_INC.'inc/auth/'.$conf['authtype'].'.class.php')) { require_once(DOKU_INC.'inc/auth/basic.class.php'); require_once(DOKU_INC.'inc/auth/'.$conf['authtype'].'.class.php'); $auth_class = "auth_".$conf['authtype']; if (class_exists($auth_class)) { $auth = new $auth_class(); if ($auth->success == false) { // degrade to unauthenticated user unset($auth); auth_logoff(); msg($lang['authtempfail'], -1); } } else { nice_die($lang['authmodfailed']); } } else { nice_die($lang['authmodfailed']); } } // do the login either by cookie or provided credentials if($conf['useacl']){ if($auth){ if (!isset($_REQUEST['u'])) $_REQUEST['u'] = ''; if (!isset($_REQUEST['p'])) $_REQUEST['p'] = ''; if (!isset($_REQUEST['r'])) $_REQUEST['r'] = ''; $_REQUEST['http_credentials'] = false; if (!$conf['rememberme']) $_REQUEST['r'] = false; // streamline HTTP auth credentials (IIS/rewrite -> mod_php) if(isset($_SERVER['HTTP_AUTHORIZATION'])){ list($_SERVER['PHP_AUTH_USER'],$_SERVER['PHP_AUTH_PW']) = explode(':', base64_decode(substr($_SERVER['HTTP_AUTHORIZATION'], 6))); } // if no credentials were given try to use HTTP auth (for SSO) if(empty($_REQUEST['u']) && empty($_COOKIE[DOKU_COOKIE]) && !empty($_SERVER['PHP_AUTH_USER'])){ $_REQUEST['u'] = $_SERVER['PHP_AUTH_USER']; $_REQUEST['p'] = $_SERVER['PHP_AUTH_PW']; $_REQUEST['http_credentials'] = true; } // apply cleaning $_REQUEST['u'] = $auth->cleanUser($_REQUEST['u']); if(isset($_REQUEST['authtok'])){ // when an authentication token is given, trust the session auth_validateToken($_REQUEST['authtok']); }elseif(!is_null($auth) && $auth->canDo('external')){ // external trust mechanism in place $auth->trustExternal($_REQUEST['u'],$_REQUEST['p'],$_REQUEST['r']); }else{ $evdata = array( 'user' => $_REQUEST['u'], 'password' => $_REQUEST['p'], 'sticky' => $_REQUEST['r'], 'silent' => $_REQUEST['http_credentials'], ); $evt = new Doku_Event('AUTH_LOGIN_CHECK',$evdata); if($evt->advise_before()){ auth_login($evdata['user'], $evdata['password'], $evdata['sticky'], $evdata['silent']); } } } //load ACL into a global array global $AUTH_ACL; if(is_readable(DOKU_CONF.'acl.auth.php')){ $AUTH_ACL = file(DOKU_CONF.'acl.auth.php'); //support user wildcard if(isset($_SERVER['REMOTE_USER'])){ $AUTH_ACL = str_replace('%USER%',$_SERVER['REMOTE_USER'],$AUTH_ACL); $AUTH_ACL = str_replace('@USER@',$_SERVER['REMOTE_USER'],$AUTH_ACL); //legacy } }else{ $AUTH_ACL = array(); } } /** * This tries to login the user based on the sent auth credentials * * The authentication works like this: if a username was given * a new login is assumed and user/password are checked. If they * are correct the password is encrypted with blowfish and stored * together with the username in a cookie - the same info is stored * in the session, too. Additonally a browserID is stored in the * session. * * If no username was given the cookie is checked: if the username, * crypted password and browserID match between session and cookie * no further testing is done and the user is accepted * * If a cookie was found but no session info was availabe the * blowfish encrypted password from the cookie is decrypted and * together with username rechecked by calling this function again. * * On a successful login $_SERVER[REMOTE_USER] and $USERINFO * are set. * * @author Andreas Gohr * * @param string $user Username * @param string $pass Cleartext Password * @param bool $sticky Cookie should not expire * @param bool $silent Don't show error on bad auth * @return bool true on successful auth */ function auth_login($user,$pass,$sticky=false,$silent=false){ global $USERINFO; global $conf; global $lang; global $auth; $sticky ? $sticky = true : $sticky = false; //sanity check if (!$auth) return false; if(!auth_issecure()) { // Unsafe access means no login, but don't logoff return false; } if(!empty($user)){ //usual login if ($auth->checkPass($user,$pass)){ // make logininfo globally available $_SERVER['REMOTE_USER'] = $user; auth_setCookie($user,PMA_blowfish_encrypt($pass,auth_cookiesalt()),$sticky); return true; }else{ //invalid credentials - log off if(!$silent) msg($lang['badlogin'],-1); auth_logoff(); return false; } }else{ // read cookie information list($user,$sticky,$pass) = auth_getCookie(); // get session info $session = $_SESSION[DOKU_COOKIE]['auth']; if($user && $pass){ // we got a cookie - see if we can trust it if(isset($session) && $auth->useSessionCache($user) && ($session['time'] >= time()-$conf['auth_security_timeout']) && ($session['user'] == $user) && ($session['pass'] == $pass) && //still crypted ($session['buid'] == auth_browseruid()) ){ // he has session, cookie and browser right - let him in $_SERVER['REMOTE_USER'] = $user; $USERINFO = $session['info']; //FIXME move all references to session return true; } // no we don't trust it yet - recheck pass but silent $pass = PMA_blowfish_decrypt($pass,auth_cookiesalt()); return auth_login($user,$pass,$sticky,true); } } //just to be sure auth_logoff(true); return false; } /** * Checks for security (SSL) * * @author Bruno De Fraine * * @return boolean true if server reports this is a secure request */ function auth_issecure() { return ($_SERVER["SERVER_ADDR"] == "127.0.0.1") || ($_SERVER["HTTPS"] && ($_SERVER["HTTPS"] == "on")); } /** * Checks if a given authentication token was stored in the session * * Will setup authentication data using data from the session if the * token is correct. Will exit with a 401 Status if not. * * @author Andreas Gohr * @param string $token The authentication token * @return boolean true (or will exit on failure) */ function auth_validateToken($token){ if(!$token || $token != $_SESSION[DOKU_COOKIE]['auth']['token']){ // bad token header("HTTP/1.0 401 Unauthorized"); print 'Invalid auth token - maybe the session timed out'; unset($_SESSION[DOKU_COOKIE]['auth']['token']); // no second chance exit; } // still here? trust the session data global $USERINFO; $_SERVER['REMOTE_USER'] = $_SESSION[DOKU_COOKIE]['auth']['user']; $USERINFO = $_SESSION[DOKU_COOKIE]['auth']['info']; return true; } /** * Create an auth token and store it in the session * * NOTE: this is completely unrelated to the getSecurityToken() function * * @author Andreas Gohr * @return string The auth token */ function auth_createToken(){ $token = md5(mt_rand()); @session_start(); // reopen the session if needed $_SESSION[DOKU_COOKIE]['auth']['token'] = $token; session_write_close(); return $token; } /** * Builds a pseudo UID from browser and IP data * * This is neither unique nor unfakable - still it adds some * security. Using the first part of the IP makes sure * proxy farms like AOLs are stil okay. * * @author Andreas Gohr * * @return string a MD5 sum of various browser headers */ function auth_browseruid(){ $ip = clientIP(true); $uid = ''; $uid .= $_SERVER['HTTP_USER_AGENT']; $uid .= $_SERVER['HTTP_ACCEPT_ENCODING']; $uid .= $_SERVER['HTTP_ACCEPT_LANGUAGE']; $uid .= $_SERVER['HTTP_ACCEPT_CHARSET']; $uid .= substr($ip,0,strpos($ip,'.')); return md5($uid); } /** * Creates a random key to encrypt the password in cookies * * This function tries to read the password for encrypting * cookies from $conf['metadir'].'/_htcookiesalt' * if no such file is found a random key is created and * and stored in this file. * * @author Andreas Gohr * * @return string */ function auth_cookiesalt(){ global $conf; $file = $conf['metadir'].'/_htcookiesalt'; $salt = io_readFile($file); if(empty($salt)){ $salt = uniqid(rand(),true); io_saveFile($file,$salt); } return $salt; } /** * Log out the current user * * This clears all authentication data and thus log the user * off. It also clears session data. * * @author Andreas Gohr * @param bool $keepbc - when true, the breadcrumb data is not cleared */ function auth_logoff($keepbc=false){ global $conf; global $USERINFO; global $INFO, $ID; global $auth; // make sure the session is writable (it usually is) @session_start(); if(isset($_SESSION[DOKU_COOKIE]['auth']['user'])) unset($_SESSION[DOKU_COOKIE]['auth']['user']); if(isset($_SESSION[DOKU_COOKIE]['auth']['pass'])) unset($_SESSION[DOKU_COOKIE]['auth']['pass']); if(isset($_SESSION[DOKU_COOKIE]['auth']['info'])) unset($_SESSION[DOKU_COOKIE]['auth']['info']); if(!$keepbc && isset($_SESSION[DOKU_COOKIE]['bc'])) unset($_SESSION[DOKU_COOKIE]['bc']); if(isset($_SERVER['REMOTE_USER'])) unset($_SERVER['REMOTE_USER']); $USERINFO=null; //FIXME if (version_compare(PHP_VERSION, '5.2.0', '>')) { setcookie(DOKU_COOKIE,'',time()-600000,DOKU_REL,'',($conf['securecookie'] && is_ssl()),true); }else{ setcookie(DOKU_COOKIE,'',time()-600000,DOKU_REL,'',($conf['securecookie'] && is_ssl())); } if($auth && $auth->canDo('logoff')){ $auth->logOff(); } } /** * Check if a user is a manager * * Should usually be called without any parameters to check the current * user. * * The info is available through $INFO['ismanager'], too * * @author Andreas Gohr * @see auth_isadmin * @param string user - Username * @param array groups - List of groups the user is in * @param bool adminonly - when true checks if user is admin */ function auth_ismanager($user=null,$groups=null,$adminonly=false){ global $conf; global $USERINFO; global $auth; if (!$auth) return false; if(is_null($user)) { if (!isset($_SERVER['REMOTE_USER'])) { return false; } else { $user = $_SERVER['REMOTE_USER']; } } $user = $auth->cleanUser($user); if(is_null($groups)) $groups = (array) $USERINFO['grps']; $groups = array_map(array($auth,'cleanGroup'),$groups); $user = auth_nameencode($user); // check username against superuser and manager $superusers = explode(',', $conf['superuser']); $superusers = array_unique($superusers); $superusers = array_map('trim', $superusers); // prepare an array containing only true values for array_map call $alltrue = array_fill(0, count($superusers), true); $superusers = array_map('auth_nameencode', $superusers, $alltrue); // case insensitive? if(!$auth->isCaseSensitive()){ $superusers = array_map('utf8_strtolower',$superusers); $user = utf8_strtolower($user); } // check user match if(in_array($user, $superusers)) return true; // check managers if(!$adminonly){ $managers = explode(',', $conf['manager']); $managers = array_unique($managers); $managers = array_map('trim', $managers); // prepare an array containing only true values for array_map call $alltrue = array_fill(0, count($managers), true); $managers = array_map('auth_nameencode', $managers, $alltrue); if(!$auth->isCaseSensitive()) $managers = array_map('utf8_strtolower',$managers); if(in_array($user, $managers)) return true; } // check user's groups against superuser and manager if (!empty($groups)) { //prepend groups with @ and nameencode $cnt = count($groups); for($i=0; $i<$cnt; $i++){ $groups[$i] = '@'.auth_nameencode($groups[$i]); if(!$auth->isCaseSensitive()){ $groups[$i] = utf8_strtolower($groups[$i]); } } // check groups against superuser and manager foreach($superusers as $supu) if(in_array($supu, $groups)) return true; if(!$adminonly){ foreach($managers as $mana) if(in_array($mana, $groups)) return true; } } return false; } /** * Check if a user is admin * * Alias to auth_ismanager with adminonly=true * * The info is available through $INFO['isadmin'], too * * @author Andreas Gohr * @see auth_ismanager */ function auth_isadmin($user=null,$groups=null){ return auth_ismanager($user,$groups,true); } /** * Convinience function for auth_aclcheck() * * This checks the permissions for the current user * * @author Andreas Gohr * * @param string $id page ID (needs to be resolved and cleaned) * @return int permission level */ function auth_quickaclcheck($id){ global $conf; global $USERINFO; # if no ACL is used always return upload rights if(!$conf['useacl']) return AUTH_UPLOAD; return auth_aclcheck($id,$_SERVER['REMOTE_USER'],$USERINFO['grps']); } /** * Returns the maximum rights a user has for * the given ID or its namespace * * @author Andreas Gohr * * @param string $id page ID (needs to be resolved and cleaned) * @param string $user Username * @param array $groups Array of groups the user is in * @return int permission level */ function auth_aclcheck($id,$user,$groups){ global $conf; global $AUTH_ACL; global $auth; // if no ACL is used always return upload rights if(!$conf['useacl']) return AUTH_UPLOAD; if (!$auth) return AUTH_NONE; //make sure groups is an array if(!is_array($groups)) $groups = array(); //if user is superuser or in superusergroup return 255 (acl_admin) if(auth_isadmin($user,$groups)) { return AUTH_ADMIN; } $ci = ''; if(!$auth->isCaseSensitive()) $ci = 'ui'; $user = $auth->cleanUser($user); $groups = array_map(array($auth,'cleanGroup'),(array)$groups); $user = auth_nameencode($user); //prepend groups with @ and nameencode $cnt = count($groups); for($i=0; $i<$cnt; $i++){ $groups[$i] = '@'.auth_nameencode($groups[$i]); } $ns = getNS($id); $perm = -1; if($user || count($groups)){ //add ALL group $groups[] = '@ALL'; //add User if($user) $groups[] = $user; //build regexp $regexp = join('|',$groups); }else{ $regexp = '@ALL'; } //check exact match first $matches = preg_grep('/^'.preg_quote($id,'/').'\s+('.$regexp.')\s+/'.$ci,$AUTH_ACL); if(count($matches)){ foreach($matches as $match){ $match = preg_replace('/#.*$/','',$match); //ignore comments $acl = preg_split('/\s+/',$match); if($acl[2] > AUTH_DELETE) $acl[2] = AUTH_DELETE; //no admins in the ACL! if($acl[2] > $perm){ $perm = $acl[2]; } } if($perm > -1){ //we had a match - return it return $perm; } } //still here? do the namespace checks if($ns){ $path = $ns.':\*'; }else{ $path = '\*'; //root document } do{ $matches = preg_grep('/^'.$path.'\s+('.$regexp.')\s+/'.$ci,$AUTH_ACL); if(count($matches)){ foreach($matches as $match){ $match = preg_replace('/#.*$/','',$match); //ignore comments $acl = preg_split('/\s+/',$match); if($acl[2] > AUTH_DELETE) $acl[2] = AUTH_DELETE; //no admins in the ACL! if($acl[2] > $perm){ $perm = $acl[2]; } } //we had a match - return it return $perm; } //get next higher namespace $ns = getNS($ns); if($path != '\*'){ $path = $ns.':\*'; if($path == ':\*') $path = '\*'; }else{ //we did this already //looks like there is something wrong with the ACL //break here msg('No ACL setup yet! Denying access to everyone.'); return AUTH_NONE; } }while(1); //this should never loop endless //still here? return no permissions return AUTH_NONE; } /** * Encode ASCII special chars * * Some auth backends allow special chars in their user and groupnames * The special chars are encoded with this function. Only ASCII chars * are encoded UTF-8 multibyte are left as is (different from usual * urlencoding!). * * Decoding can be done with rawurldecode * * @author Andreas Gohr * @see rawurldecode() */ function auth_nameencode($name,$skip_group=false){ global $cache_authname; $cache =& $cache_authname; $name = (string) $name; if (!isset($cache[$name][$skip_group])) { if($skip_group && $name{0} =='@'){ $cache[$name][$skip_group] = '@'.preg_replace('/([\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f])/e', "'%'.dechex(ord(substr('\\1',-1)))",substr($name,1)); }else{ $cache[$name][$skip_group] = preg_replace('/([\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f])/e', "'%'.dechex(ord(substr('\\1',-1)))",$name); } } return $cache[$name][$skip_group]; } /** * Create a pronouncable password * * @author Andreas Gohr * @link http://www.phpbuilder.com/annotate/message.php3?id=1014451 * * @return string pronouncable password */ function auth_pwgen(){ $pw = ''; $c = 'bcdfghjklmnprstvwz'; //consonants except hard to speak ones $v = 'aeiou'; //vowels $a = $c.$v; //both //use two syllables... for($i=0;$i < 2; $i++){ $pw .= $c[rand(0, strlen($c)-1)]; $pw .= $v[rand(0, strlen($v)-1)]; $pw .= $a[rand(0, strlen($a)-1)]; } //... and add a nice number $pw .= rand(10,99); return $pw; } /** * Sends a password to the given user * * @author Andreas Gohr * * @return bool true on success */ function auth_sendPassword($user,$password){ global $conf; global $lang; global $auth; if (!$auth) return false; $hdrs = ''; $user = $auth->cleanUser($user); $userinfo = $auth->getUserData($user); if(!$userinfo['mail']) return false; $text = rawLocale('password'); $text = str_replace('@DOKUWIKIURL@',DOKU_URL,$text); $text = str_replace('@FULLNAME@',$userinfo['name'],$text); $text = str_replace('@LOGIN@',$user,$text); $text = str_replace('@PASSWORD@',$password,$text); $text = str_replace('@TITLE@',$conf['title'],$text); return mail_send($userinfo['name'].' <'.$userinfo['mail'].'>', $lang['regpwmail'], $text, $conf['mailfrom']); } /** * Register a new user * * This registers a new user - Data is read directly from $_POST * * @author Andreas Gohr * * @return bool true on success, false on any error */ function register(){ global $lang; global $conf; global $auth; if (!$auth) return false; if(!$_POST['save']) return false; if(!$auth->canDo('addUser')) return false; //clean username $_POST['login'] = trim($auth->cleanUser($_POST['login'])); //clean fullname and email $_POST['fullname'] = trim(preg_replace('/[\x00-\x1f:<>&%,;]+/','',$_POST['fullname'])); $_POST['email'] = trim(preg_replace('/[\x00-\x1f:<>&%,;]+/','',$_POST['email'])); if( empty($_POST['login']) || empty($_POST['fullname']) || empty($_POST['email']) ){ msg($lang['regmissing'],-1); return false; } if ($conf['autopasswd']) { $pass = auth_pwgen(); // automatically generate password } elseif (empty($_POST['pass']) || empty($_POST['passchk'])) { msg($lang['regmissing'], -1); // complain about missing passwords return false; } elseif ($_POST['pass'] != $_POST['passchk']) { msg($lang['regbadpass'], -1); // complain about misspelled passwords return false; } else { $pass = $_POST['pass']; // accept checked and valid password } //check mail if(!mail_isvalid($_POST['email'])){ msg($lang['regbadmail'],-1); return false; } //okay try to create the user if(!$auth->triggerUserMod('create', array($_POST['login'],$pass,$_POST['fullname'],$_POST['email']))){ msg($lang['reguexists'],-1); return false; } // create substitutions for use in notification email $substitutions = array( 'NEWUSER' => $_POST['login'], 'NEWNAME' => $_POST['fullname'], 'NEWEMAIL' => $_POST['email'], ); if (!$conf['autopasswd']) { msg($lang['regsuccess2'],1); notify('', 'register', '', $_POST['login'], false, $substitutions); return true; } // autogenerated password? then send him the password if (auth_sendPassword($_POST['login'],$pass)){ msg($lang['regsuccess'],1); notify('', 'register', '', $_POST['login'], false, $substitutions); return true; }else{ msg($lang['regmailfail'],-1); return false; } } /** * Update user profile * * @author Christopher Smith */ function updateprofile() { global $conf; global $INFO; global $lang; global $auth; if (!$auth) return false; if(empty($_POST['save'])) return false; if(!checkSecurityToken()) return false; // should not be able to get here without Profile being possible... if(!$auth->canDo('Profile')) { msg($lang['profna'],-1); return false; } if ($_POST['newpass'] != $_POST['passchk']) { msg($lang['regbadpass'], -1); // complain about misspelled passwords return false; } //clean fullname and email $_POST['fullname'] = trim(preg_replace('/[\x00-\x1f:<>&%,;]+/','',$_POST['fullname'])); $_POST['email'] = trim(preg_replace('/[\x00-\x1f:<>&%,;]+/','',$_POST['email'])); if ((empty($_POST['fullname']) && $auth->canDo('modName')) || (empty($_POST['email']) && $auth->canDo('modMail'))) { msg($lang['profnoempty'],-1); return false; } if (!mail_isvalid($_POST['email']) && $auth->canDo('modMail')){ msg($lang['regbadmail'],-1); return false; } if ($_POST['fullname'] != $INFO['userinfo']['name'] && $auth->canDo('modName')) $changes['name'] = $_POST['fullname']; if ($_POST['email'] != $INFO['userinfo']['mail'] && $auth->canDo('modMail')) $changes['mail'] = $_POST['email']; if (!empty($_POST['newpass']) && $auth->canDo('modPass')) $changes['pass'] = $_POST['newpass']; if (!count($changes)) { msg($lang['profnochange'], -1); return false; } if ($conf['profileconfirm']) { if (!$auth->checkPass($_SERVER['REMOTE_USER'], $_POST['oldpass'])) { msg($lang['badlogin'],-1); return false; } } if ($result = $auth->triggerUserMod('modify', array($_SERVER['REMOTE_USER'], $changes))) { // update cookie and session with the changed data $cookie = base64_decode($_COOKIE[DOKU_COOKIE]); list($user,$sticky,$pass) = explode('|',$cookie,3); if ($changes['pass']) $pass = PMA_blowfish_encrypt($changes['pass'],auth_cookiesalt()); auth_setCookie($_SERVER['REMOTE_USER'],$pass,(bool)$sticky); return true; } } /** * Send a new password * * This function handles both phases of the password reset: * * - handling the first request of password reset * - validating the password reset auth token * * @author Benoit Chesneau * @author Chris Smith * @author Andreas Gohr * * @return bool true on success, false on any error */ function act_resendpwd(){ global $lang; global $conf; global $auth; if(!actionOK('resendpwd')) return false; if (!$auth) return false; // should not be able to get here without modPass being possible... if(!$auth->canDo('modPass')) { msg($lang['resendna'],-1); return false; } $token = preg_replace('/[^a-f0-9]+/','',$_REQUEST['pwauth']); if($token){ // we're in token phase $tfile = $conf['cachedir'].'/'.$token{0}.'/'.$token.'.pwauth'; if(!@file_exists($tfile)){ msg($lang['resendpwdbadauth'],-1); return false; } $user = io_readfile($tfile); @unlink($tfile); $userinfo = $auth->getUserData($user); if(!$userinfo['mail']) { msg($lang['resendpwdnouser'], -1); return false; } $pass = auth_pwgen(); if (!$auth->triggerUserMod('modify', array($user,array('pass' => $pass)))) { msg('error modifying user data',-1); return false; } if (auth_sendPassword($user,$pass)) { msg($lang['resendpwdsuccess'],1); } else { msg($lang['regmailfail'],-1); } return true; } else { // we're in request phase if(!$_POST['save']) return false; if (empty($_POST['login'])) { msg($lang['resendpwdmissing'], -1); return false; } else { $user = trim($auth->cleanUser($_POST['login'])); } $userinfo = $auth->getUserData($user); if(!$userinfo['mail']) { msg($lang['resendpwdnouser'], -1); return false; } // generate auth token $token = md5(auth_cookiesalt().$user); //secret but user based $tfile = $conf['cachedir'].'/'.$token{0}.'/'.$token.'.pwauth'; $url = wl('',array('do'=>'resendpwd','pwauth'=>$token),true,'&'); io_saveFile($tfile,$user); $text = rawLocale('pwconfirm'); $text = str_replace('@DOKUWIKIURL@',DOKU_URL,$text); $text = str_replace('@FULLNAME@',$userinfo['name'],$text); $text = str_replace('@LOGIN@',$user,$text); $text = str_replace('@TITLE@',$conf['title'],$text); $text = str_replace('@CONFIRM@',$url,$text); if(mail_send($userinfo['name'].' <'.$userinfo['mail'].'>', $lang['regpwmail'], $text, $conf['mailfrom'])){ msg($lang['resendpwdconfirm'],1); }else{ msg($lang['regmailfail'],-1); } return true; } return false; // never reached } /** * Encrypts a password using the given method and salt * * If the selected method needs a salt and none was given, a random one * is chosen. * * The following methods are understood: * * smd5 - Salted MD5 hashing * apr1 - Apache salted MD5 hashing * md5 - Simple MD5 hashing * sha1 - SHA1 hashing * ssha - Salted SHA1 hashing * crypt - Unix crypt * mysql - MySQL password (old method) * my411 - MySQL 4.1.1 password * kmd5 - Salted MD5 hashing as used by UNB * * @author Andreas Gohr * @return string The crypted password */ function auth_cryptPassword($clear,$method='',$salt=null){ global $conf; if(empty($method)) $method = $conf['passcrypt']; //prepare a salt if(is_null($salt)) $salt = md5(uniqid(rand(), true)); switch(strtolower($method)){ case 'smd5': if(defined('CRYPT_MD5') && CRYPT_MD5) return crypt($clear,'$1$'.substr($salt,0,8).'$'); // when crypt can't handle SMD5, falls through to pure PHP implementation $magic = '1'; case 'apr1': //from http://de.php.net/manual/en/function.crypt.php#73619 comment by if(!$magic) $magic = 'apr1'; $salt = substr($salt,0,8); $len = strlen($clear); $text = $clear.'$'.$magic.'$'.$salt; $bin = pack("H32", md5($clear.$salt.$clear)); for($i = $len; $i > 0; $i -= 16) { $text .= substr($bin, 0, min(16, $i)); } for($i = $len; $i > 0; $i >>= 1) { $text .= ($i & 1) ? chr(0) : $clear{0}; } $bin = pack("H32", md5($text)); for($i = 0; $i < 1000; $i++) { $new = ($i & 1) ? $clear : $bin; if ($i % 3) $new .= $salt; if ($i % 7) $new .= $clear; $new .= ($i & 1) ? $bin : $clear; $bin = pack("H32", md5($new)); } $tmp = ''; for ($i = 0; $i < 5; $i++) { $k = $i + 6; $j = $i + 12; if ($j == 16) $j = 5; $tmp = $bin[$i].$bin[$k].$bin[$j].$tmp; } $tmp = chr(0).chr(0).$bin[11].$tmp; $tmp = strtr(strrev(substr(base64_encode($tmp), 2)), "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/", "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"); return '$'.$magic.'$'.$salt.'$'.$tmp; case 'md5': return md5($clear); case 'sha1': return sha1($clear); case 'ssha': $salt=substr($salt,0,4); return '{SSHA}'.base64_encode(pack("H*", sha1($clear.$salt)).$salt); case 'crypt': return crypt($clear,substr($salt,0,2)); case 'mysql': //from http://www.php.net/mysql comment by $nr=0x50305735; $nr2=0x12345671; $add=7; $charArr = preg_split("//", $clear); foreach ($charArr as $char) { if (($char == '') || ($char == ' ') || ($char == '\t')) continue; $charVal = ord($char); $nr ^= ((($nr & 63) + $add) * $charVal) + ($nr << 8); $nr2 += ($nr2 << 8) ^ $nr; $add += $charVal; } return sprintf("%08x%08x", ($nr & 0x7fffffff), ($nr2 & 0x7fffffff)); case 'my411': return '*'.sha1(pack("H*", sha1($clear))); case 'kmd5': $key = substr($salt, 16, 2); $hash1 = strtolower(md5($key . md5($clear))); $hash2 = substr($hash1, 0, 16) . $key . substr($hash1, 16); return $hash2; default: msg("Unsupported crypt method $method",-1); } } /** * Verifies a cleartext password against a crypted hash * * The method and salt used for the crypted hash is determined automatically * then the clear text password is crypted using the same method. If both hashs * match true is is returned else false * * @author Andreas Gohr * @return bool */ function auth_verifyPassword($clear,$crypt){ $method=''; $salt=''; //determine the used method and salt $len = strlen($crypt); if(preg_match('/^\$1\$([^\$]{0,8})\$/',$crypt,$m)){ $method = 'smd5'; $salt = $m[1]; }elseif(preg_match('/^\$apr1\$([^\$]{0,8})\$/',$crypt,$m)){ $method = 'apr1'; $salt = $m[1]; }elseif(substr($crypt,0,6) == '{SSHA}'){ $method = 'ssha'; $salt = substr(base64_decode(substr($crypt, 6)),20); }elseif($len == 32){ $method = 'md5'; }elseif($len == 40){ $method = 'sha1'; }elseif($len == 16){ $method = 'mysql'; }elseif($len == 41 && $crypt[0] == '*'){ $method = 'my411'; }elseif($len == 34){ $method = 'kmd5'; $salt = $crypt; }else{ $method = 'crypt'; $salt = substr($crypt,0,2); } //crypt and compare if(auth_cryptPassword($clear,$method,$salt) === $crypt){ return true; } return false; } /** * Set the authentication cookie and add user identification data to the session * * @param string $user username * @param string $pass encrypted password * @param bool $sticky whether or not the cookie will last beyond the session */ function auth_setCookie($user,$pass,$sticky) { global $conf; global $auth; global $USERINFO; if (!$auth) return false; $USERINFO = $auth->getUserData($user); // set cookie $cookie = base64_encode($user).'|'.((int) $sticky).'|'.base64_encode($pass); $time = $sticky ? (time()+60*60*24*365) : 0; //one year if (version_compare(PHP_VERSION, '5.2.0', '>')) { setcookie(DOKU_COOKIE,$cookie,$time,DOKU_REL,'',($conf['securecookie'] && is_ssl()),true); }else{ setcookie(DOKU_COOKIE,$cookie,$time,DOKU_REL,'',($conf['securecookie'] && is_ssl())); } // set session $_SESSION[DOKU_COOKIE]['auth']['user'] = $user; $_SESSION[DOKU_COOKIE]['auth']['pass'] = $pass; $_SESSION[DOKU_COOKIE]['auth']['buid'] = auth_browseruid(); $_SESSION[DOKU_COOKIE]['auth']['info'] = $USERINFO; $_SESSION[DOKU_COOKIE]['auth']['time'] = time(); } /** * Returns the user, (encrypted) password and sticky bit from cookie * * @returns array */ function auth_getCookie(){ if (!isset($_COOKIE[DOKU_COOKIE])) { return array(null, null, null); } list($user,$sticky,$pass) = explode('|',$_COOKIE[DOKU_COOKIE],3); $sticky = (bool) $sticky; $pass = base64_decode($pass); $user = base64_decode($user); return array($user,$sticky,$pass); } //Setup VIM: ex: et ts=2 enc=utf-8 :