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Diffstat (limited to 'plugins/LdapAuthentication/LdapAuthenticationPlugin.php')
-rw-r--r--plugins/LdapAuthentication/LdapAuthenticationPlugin.php164
1 files changed, 156 insertions, 8 deletions
diff --git a/plugins/LdapAuthentication/LdapAuthenticationPlugin.php b/plugins/LdapAuthentication/LdapAuthenticationPlugin.php
index 865154730..ad5dd3a02 100644
--- a/plugins/LdapAuthentication/LdapAuthenticationPlugin.php
+++ b/plugins/LdapAuthentication/LdapAuthenticationPlugin.php
@@ -46,6 +46,7 @@ class LdapAuthenticationPlugin extends AuthenticationPlugin
public $options=null;
public $filter=null;
public $scope=null;
+ public $password_encoding=null;
public $attributes=array();
function onInitializePlugin(){
@@ -68,10 +69,6 @@ class LdapAuthenticationPlugin extends AuthenticationPlugin
function checkPassword($username, $password)
{
- $ldap = $this->ldap_get_connection();
- if(!$ldap){
- return false;
- }
$entry = $this->ldap_get_user($username);
if(!$entry){
return false;
@@ -109,8 +106,38 @@ class LdapAuthenticationPlugin extends AuthenticationPlugin
function changePassword($username,$oldpassword,$newpassword)
{
- //TODO implement this
- throw new Exception(_('Sorry, changing LDAP passwords is not supported at this time'));
+ 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;
}
@@ -153,8 +180,10 @@ class LdapAuthenticationPlugin extends AuthenticationPlugin
* $param array $attributes LDAP attributes to retrieve
* @return string DN
*/
- function ldap_get_user($username,$attributes=array()){
- $ldap = $this->ldap_get_connection();
+ function ldap_get_user($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(
'scope' => 'sub',
@@ -177,4 +206,123 @@ class LdapAuthenticationPlugin extends AuthenticationPlugin
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;
+ }
}
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