]> git.mxchange.org Git - quix0rs-gnu-social.git/blobdiff - plugins/LdapAuthentication/LdapAuthenticationPlugin.php
Merged
[quix0rs-gnu-social.git] / plugins / LdapAuthentication / LdapAuthenticationPlugin.php
index 483209676575af0c1bb4c398b6c827124a1021a1..8eeb1004b0890d7a912f57db0014003f300f21e1 100644 (file)
@@ -22,7 +22,7 @@
  * @category  Plugin
  * @package   StatusNet
  * @author    Craig Andrews <candrews@integralblue.com>
- * @copyright 2009 Craig Andrews http://candrews.integralblue.com
+ * @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  * @link      http://status.net/
  */
@@ -31,53 +31,34 @@ if (!defined('STATUSNET') && !defined('LACONICA')) {
     exit(1);
 }
 
-require_once 'Net/LDAP2.php';
-
 class LdapAuthenticationPlugin extends AuthenticationPlugin
 {
-    public $host=null;
-    public $port=null;
-    public $version=null;
-    public $starttls=null;
-    public $binddn=null;
-    public $bindpw=null;
-    public $basedn=null;
-    public $options=null;
-    public $filter=null;
-    public $scope=null;
-    public $password_encoding=null;
-    public $attributes=array();
-
     function onInitializePlugin(){
         parent::onInitializePlugin();
-        if(!isset($this->host)){
-            throw new Exception("must specify a host");
-        }
-        if(!isset($this->basedn)){
-            throw new Exception("must specify a basedn");
-        }
         if(!isset($this->attributes['nickname'])){
-            throw new Exception("must specify a nickname attribute");
-        }
-        if(!isset($this->attributes['username'])){
-            throw new Exception("must specify a username attribute");
+            // TRANS: Exception thrown when initialising the LDAP Auth plugin fails because of an incorrect configuration.
+            throw new Exception(_m('You must specify a nickname attribute.'));
         }
         if($this->password_changeable && (! isset($this->attributes['password']) || !isset($this->password_encoding))){
-            throw new Exception("if password_changeable is set, the password attribute and password_encoding must also be specified");
+            // TRANS: Exception thrown when initialising the LDAP Auth plugin fails because of an incorrect configuration.
+            throw new Exception(_m('If password_changeable is set, the password attribute and password_encoding must also be specified.'));
         }
+        $this->ldapCommon = new LdapCommon(get_object_vars($this));
     }
 
     function onAutoload($cls)
-    {   
+    {
         switch ($cls)
         {
-         case 'MemcacheSchemaCache':
-            require_once(INSTALLDIR.'/plugins/LdapAuthentication/MemcacheSchemaCache.php');
+         case 'LdapCommon':
+            require_once(INSTALLDIR.'/plugins/LdapCommon/LdapCommon.php');
             return false;
         }
+
+        return parent::onAutoload($cls);
     }
 
-    function onEndShowPageNotice($action)
+    function onEndShowPageNotice(Action $action)
     {
         $name = $action->trimmed('action');
         $instr = false;
@@ -86,11 +67,13 @@ class LdapAuthenticationPlugin extends AuthenticationPlugin
         {
          case 'register':
             if($this->autoregistration) {
-                $instr = 'Have an LDAP account? Use your standard username and password.';
+                // TRANS: Instructions for LDAP authentication.
+                $instr = _m('Do you have an LDAP account? Use your standard username and password.');
             }
             break;
          case 'login':
-            $instr = 'Have an LDAP account? Use your standard username and password.';
+            // TRANS: Instructions for LDAP authentication.
+            $instr = _m('Do you have an LDAP account? Use your standard username and password.');
             break;
          default:
             return true;
@@ -102,24 +85,12 @@ class LdapAuthenticationPlugin extends AuthenticationPlugin
         }
         return true;
     }
-    
+
     //---interface implementation---//
 
     function checkPassword($username, $password)
     {
-        $entry = $this->ldap_get_user($username);
-        if(!$entry){
-            return false;
-        }else{
-            $config = $this->ldap_get_config();
-            $config['binddn']=$entry->dn();
-            $config['bindpw']=$password;
-            if($this->ldap_get_connection($config)){
-                return true;
-            }else{
-                return false;
-            }
-        }
+        return $this->ldapCommon->checkPassword($username,$password);
     }
 
     function autoRegister($username, $nickname)
@@ -127,18 +98,23 @@ class LdapAuthenticationPlugin extends AuthenticationPlugin
         if(is_null($nickname)){
             $nickname = $username;
         }
-        $entry = $this->ldap_get_user($username,$this->attributes);
+        $entry = $this->ldapCommon->get_user($username,$this->attributes);
         if($entry){
             $registration_data = array();
             foreach($this->attributes as $sn_attribute=>$ldap_attribute){
-                $registration_data[$sn_attribute]=$entry->getValue($ldap_attribute,'single');
+                //ldap won't let us read a user's password,
+                //and we're going to set the password to a random string later anyways,
+                //so don't bother trying to read it.
+                if($sn_attribute != 'password'){
+                    $registration_data[$sn_attribute]=$entry->getValue($ldap_attribute,'single');
+                }
             }
             if(isset($registration_data['email']) && !empty($registration_data['email'])){
                 $registration_data['email_confirmed']=true;
             }
             $registration_data['nickname'] = $nickname;
             //set the database saved password to a random string.
-            $registration_data['password']=common_good_rand(16);
+            $registration_data['password']=common_random_hexstr(16);
             return User::register($registration_data);
         }else{
             //user isn't in ldap, so we cannot register him
@@ -148,45 +124,12 @@ class LdapAuthenticationPlugin extends AuthenticationPlugin
 
     function changePassword($username,$oldpassword,$newpassword)
     {
-        if(! isset($this->attributes['password']) || !isset($this->password_encoding)){
-            //throw new Exception(_('Sorry, changing LDAP passwords is not supported at this time'));
-            return false;
-        }
-        $entry = $this->ldap_get_user($username);
-        if(!$entry){
-            return false;
-        }else{
-            $config = $this->ldap_get_config();
-            $config['binddn']=$entry->dn();
-            $config['bindpw']=$oldpassword;
-            if($ldap = $this->ldap_get_connection($config)){
-                $entry = $this->ldap_get_user($username,array(),$ldap);
-                
-                $newCryptedPassword = $this->hashPassword($newpassword, $this->password_encoding);
-                if ($newCryptedPassword===false) {
-                    return false;
-                }
-                if($this->password_encoding=='ad') {
-                    //TODO I believe this code will work once this bug is fixed: http://pear.php.net/bugs/bug.php?id=16796
-                    $oldCryptedPassword = $this->hashPassword($oldpassword, $this->password_encoding);
-                    $entry->delete( array($this->attributes['password'] => $oldCryptedPassword ));
-                }
-                $entry->replace( array($this->attributes['password'] => $newCryptedPassword ), true);
-                if( Net_LDAP2::isError($entry->upate()) ) {
-                    return false;
-                }
-                return true;
-            }else{
-                return false;
-            }
-        }
-
-        return false;
+        return $this->ldapCommon->changePassword($username,$oldpassword,$newpassword);
     }
 
     function suggestNicknameForUsername($username)
     {
-        $entry = $this->ldap_get_user($username, $this->attributes);
+        $entry = $this->ldapCommon->get_user($username, $this->attributes);
         if(!$entry){
             //this really shouldn't happen
             $nickname = $username;
@@ -198,211 +141,15 @@ class LdapAuthenticationPlugin extends AuthenticationPlugin
         }
         return common_nicknamize($nickname);
     }
-    
-    //---utility functions---//
-    function ldap_get_config(){
-        $config = array();
-        $keys = array('host','port','version','starttls','binddn','bindpw','basedn','options','filter','scope');
-        foreach($keys as $key){
-            $value = $this->$key;
-            if($value!==null){
-                $config[$key]=$value;
-            }
-        }
-        return $config;
-    }
-    
-    function ldap_get_connection($config = null){
-        if($config == null && isset($this->default_ldap)){
-            return $this->default_ldap;
-        }
-        
-        //cannot use Net_LDAP2::connect() as StatusNet uses
-        //PEAR::setErrorHandling(PEAR_ERROR_CALLBACK, 'handleError');
-        //PEAR handling can be overridden on instance objects, so we do that.
-        $ldap = new Net_LDAP2(isset($config)?$config:$this->ldap_get_config());
-        $ldap->setErrorHandling(PEAR_ERROR_RETURN);
-        $err=$ldap->bind();
-        if (Net_LDAP2::isError($err)) {
-            // if we were called with a config, assume caller will handle
-            // incorrect username/password (LDAP_INVALID_CREDENTIALS)
-            if (isset($config) && $err->getCode() == 0x31) {
-                return null;
-            }
-            throw new Exception('Could not connect to LDAP server: '.$err->getMessage());
-        }
-        if($config == null) $this->default_ldap=$ldap;
-
-        $c = common_memcache();
-        if (!empty($c)) {
-            $cacheObj = new MemcacheSchemaCache(
-                array('c'=>$c,
-                   'cacheKey' => common_cache_key('ldap_schema:' . crc32(serialize($config)))));
-            $ldap->registerSchemaCache($cacheObj);
-        }
-        return $ldap;
-    }
-    
-    /**
-     * get an LDAP entry for a user with a given username
-     * 
-     * @param string $username
-     * $param array $attributes LDAP attributes to retrieve
-     * @return string DN
-     */
-    function ldap_get_user($username,$attributes=array(),$ldap=null){
-        if($ldap==null) {
-            $ldap = $this->ldap_get_connection();
-        }
-        $filter = Net_LDAP2_Filter::create($this->attributes['username'], 'equals',  $username);
-        $options = array(
-            'attributes' => $attributes
-        );
-        $search = $ldap->search($this->basedn, $filter, $options);
-        
-        if (PEAR::isError($search)) {
-            common_log(LOG_WARNING, 'Error while getting DN for user: '.$search->getMessage());
-            return false;
-        }
-
-        $searchcount = $search->count();
-        if($searchcount == 0) {
-            return false;
-        }else if($searchcount == 1) {
-            $entry = $search->shiftEntry();
-            return $entry;
-        }else{
-            common_log(LOG_WARNING, 'Found ' . $searchcount . ' ldap user with the username: ' . $username);
-            return false;
-        }
-    }
-    
-    /**
-     * Code originaly from the phpLDAPadmin development team
-     * http://phpldapadmin.sourceforge.net/
-     *
-     * Hashes a password and returns the hash based on the specified enc_type.
-     *
-     * @param string $passwordClear The password to hash in clear text.
-     * @param string $encodageType Standard LDAP encryption type which must be one of
-     *        crypt, ext_des, md5crypt, blowfish, md5, sha, smd5, ssha, or clear.
-     * @return string The hashed password.
-     *
-     */
-
-    function hashPassword( $passwordClear, $encodageType ) 
-    {
-        $encodageType = strtolower( $encodageType );
-        switch( $encodageType ) {
-            case 'crypt': 
-                $cryptedPassword = '{CRYPT}' . crypt($passwordClear,$this->randomSalt(2)); 
-                break;
-                
-            case 'ext_des':
-                // extended des crypt. see OpenBSD crypt man page.
-                if ( ! defined( 'CRYPT_EXT_DES' ) || CRYPT_EXT_DES == 0 ) {return FALSE;} //Your system crypt library does not support extended DES encryption.
-                $cryptedPassword = '{CRYPT}' . crypt( $passwordClear, '_' . $this->randomSalt(8) );
-                break;
-
-            case 'md5crypt':
-                if( ! defined( 'CRYPT_MD5' ) || CRYPT_MD5 == 0 ) {return FALSE;} //Your system crypt library does not support md5crypt encryption.
-                $cryptedPassword = '{CRYPT}' . crypt( $passwordClear , '$1$' . $this->randomSalt(9) );
-                break;
-
-            case 'blowfish':
-                if( ! defined( 'CRYPT_BLOWFISH' ) || CRYPT_BLOWFISH == 0 ) {return FALSE;} //Your system crypt library does not support blowfish encryption.
-                $cryptedPassword = '{CRYPT}' . crypt( $passwordClear , '$2a$12$' . $this->randomSalt(13) ); // hardcoded to second blowfish version and set number of rounds
-                break;
-
-            case 'md5':
-                $cryptedPassword = '{MD5}' . base64_encode( pack( 'H*' , md5( $passwordClear) ) );
-                break;
-
-            case 'sha':
-                if( function_exists('sha1') ) {
-                    // use php 4.3.0+ sha1 function, if it is available.
-                    $cryptedPassword = '{SHA}' . base64_encode( pack( 'H*' , sha1( $passwordClear) ) );
-                } elseif( function_exists( 'mhash' ) ) {
-                    $cryptedPassword = '{SHA}' . base64_encode( mhash( MHASH_SHA1, $passwordClear) );
-                } else {
-                    return FALSE; //Your PHP install does not have the mhash() function. Cannot do SHA hashes.
-                }
-                break;
-
-            case 'ssha':
-                if( function_exists( 'mhash' ) && function_exists( 'mhash_keygen_s2k' ) ) {
-                    mt_srand( (double) microtime() * 1000000 );
-                    $salt = mhash_keygen_s2k( MHASH_SHA1, $passwordClear, substr( pack( "h*", md5( mt_rand() ) ), 0, 8 ), 4 );
-                    $cryptedPassword = "{SSHA}".base64_encode( mhash( MHASH_SHA1, $passwordClear.$salt ).$salt );
-                } else {
-                    return FALSE; //Your PHP install does not have the mhash() function. Cannot do SHA hashes.
-                }
-                break;
-
-            case 'smd5':
-                if( function_exists( 'mhash' ) && function_exists( 'mhash_keygen_s2k' ) ) {
-                    mt_srand( (double) microtime() * 1000000 );
-                    $salt = mhash_keygen_s2k( MHASH_MD5, $passwordClear, substr( pack( "h*", md5( mt_rand() ) ), 0, 8 ), 4 );
-                    $cryptedPassword = "{SMD5}".base64_encode( mhash( MHASH_MD5, $passwordClear.$salt ).$salt );
-                } else {
-                    return FALSE; //Your PHP install does not have the mhash() function. Cannot do SHA hashes.
-                }
-                break;
-
-            case 'ad':
-                $cryptedPassword = '';
-                $passwordClear = "\"" . $passwordClear . "\"";
-                $len = strlen($passwordClear);
-                for ($i = 0; $i < $len; $i++) {
-                    $cryptedPassword .= "{$passwordClear{$i}}\000";
-                }
-
-            case 'clear':
-            default:
-                $cryptedPassword = $passwordClear;
-        }
-
-        return $cryptedPassword;
-    }
-
-    /**
-     * Code originaly from the phpLDAPadmin development team
-     * http://phpldapadmin.sourceforge.net/
-     *
-     * Used to generate a random salt for crypt-style passwords. Salt strings are used
-     * to make pre-built hash cracking dictionaries difficult to use as the hash algorithm uses
-     * not only the user's password but also a randomly generated string. The string is
-     * stored as the first N characters of the hash for reference of hashing algorithms later.
-     *
-     * --- added 20021125 by bayu irawan <bayuir@divnet.telkom.co.id> ---
-     * --- ammended 20030625 by S C Rigler <srigler@houston.rr.com> ---
-     *
-     * @param int $length The length of the salt string to generate.
-     * @return string The generated salt string.
-     */
-     
-    function randomSalt( $length ) 
-    {
-        $possible = '0123456789'.
-            'abcdefghijklmnopqrstuvwxyz'.
-            'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.
-            './';
-        $str = "";
-        mt_srand((double)microtime() * 1000000);
-
-        while( strlen( $str ) < $length )
-            $str .= substr( $possible, ( rand() % strlen( $possible ) ), 1 );
-
-        return $str;
-    }
 
-    function onPluginVersion(&$versions)
+    function onPluginVersion(array &$versions)
     {
         $versions[] = array('name' => 'LDAP Authentication',
-                            'version' => STATUSNET_VERSION,
+                            'version' => GNUSOCIAL_VERSION,
                             'author' => 'Craig Andrews',
                             'homepage' => 'http://status.net/wiki/Plugin:LdapAuthentication',
                             'rawdescription' =>
+                            // TRANS: Plugin description.
                             _m('The LDAP Authentication plugin allows for StatusNet to handle authentication through LDAP.'));
         return true;
     }