diff --git a/lib/authentication/class.AuthLdap.php b/lib/authentication/class.AuthLdap.php new file mode 100644 index 0000000..899da93 --- /dev/null +++ b/lib/authentication/class.AuthLdap.php @@ -0,0 +1,401 @@ +server as $key => $host) { + echo "key=$key; host=$host
"; + $this->connection = ldap_connect( $host); + if ( $this->connection) { + echo "connected
"; + // Connected, now try binding.... + if ( $this->result=@ldap_bind( $this->connection)) { + // Bound OK! + $this->bound = $host; + return true; + } + } else { echo "not connected
";} + } + + $this->ldapErrorCode = -1; + $this->ldapErrorText = "Unable to connect to any server"; + return false; + + } + + + + function close() { + /* 2.1.2 : Simply closes the connection set up earlier. + ** Returns true if OK, false if there was an error. + */ + + if ( !@ldap_close( $this->connection)) { + $this->ldapErrorCode = ldap_errno( $this->connection); + $this->ldapErrorText = ldap_error( $this->connection); + return false; + } else + return true; + } + + + + function bind() { + /* 2.1.3 : Anonymously binds to the connection. After this is done, + ** queries and searches can be done - but read-only. + */ + + if ( !$this->result=@ldap_bind( $this->connection)) { + $this->ldapErrorCode = ldap_errno( $this->connection); + $this->ldapErrorText = ldap_error( $this->connection); + return false; + } else + return true; + } + + + + function authBind( $bindDn,$pass) { + /* 2.1.4 : Binds as an authenticated user, which usually allows for write + ** access. The FULL dn must be passed. For a directory manager, this is + ** "cn=Directory Manager" under iPlanet. For a user, it will be something + ** like "uid=jbloggs,ou=People,dc=foo,dc=com". + */ + if ( !$this->result = @ldap_bind( $this->connection,$bindDn,$pass)) { + $this->ldapErrorCode = ldap_errno( $this->connection); + $this->ldapErrorText = ldap_error( $this->connection); + return false; + } else + return true; + } + + // 2.2 Password methods ------------------------------------------------------ + + function checkPass( $uname,$pass) { + /* 2.2.1 : Checks a username and password - does this by logging on to the + ** server as a user - specified in the DN. There are several reasons why + ** this login could fail - these are listed below. + */ + + /* Construct the full DN, eg:- + ** "uid=username, ou=People, dc=orgname,dc=com" + */ + $checkDn = "uid=" .$uname. ", ou=" .$this->people. ", " .$this->dn; + // Try and connect... + $this->result = @ldap_bind( $this->connection,$checkDn,$pass); + if ( $this->result) { + // Connected OK - login credentials are fine! + return true; + } else { + /* Login failed. Return false, together with the error code and text from + ** the LDAP server. The common error codes and reasons are listed below : + ** (for iPlanet, other servers may differ) + ** 19 - Account locked out (too many invalid login attempts) + ** 32 - User does not exist + ** 49 - Wrong password + ** 53 - Account inactive (manually locked out by administrator) + */ + $this->ldapErrorCode = ldap_errno( $this->connection); + $this->ldapErrorText = ldap_error( $this->connection); + return false; + } + } + + + + function changePass( $uname,$oldPass,$newPass) { + /* 2.2.2 : Allows a password to be changed. Note that on most LDAP servers, + ** a new ACL must be defined giving users the ability to modify their + ** password attribute (userPassword). Otherwise this will fail. + */ + + $checkDn = "uid=" .$uname. ", ou=" .$this->people. ", " .$this->dn; + $this->result = @ldap_bind( $this->connection,$checkDn,$oldPass); + + if ( $this->result) { + // Connected OK - Now modify the password... + $info["userPassword"] = $newPass; + $this->result = @ldap_modify( $this->connection, $checkDn, $info); + if ( $this->result) { + // Change went OK + return true; + } else { + // Couldn't change password... + $this->ldapErrorCode = ldap_errno( $this->connection); + $this->ldapErrorText = ldap_error( $this->connection); + return false; + } + } else { + // Login failed - see checkPass method for common error codes + $this->ldapErrorCode = ldap_errno( $this->connection); + $this->ldapErrorText = ldap_error( $this->connection); + return false; + } + } + + + + function checkPassAge ( $uname) { + /* 2.2.3 : Returns days until the password will expire. + ** We have to explicitly state this is what we want returned from the + ** LDAP server - by default, it will only send back the "basic" + ** attributes. + */ + $results[0] = "passwordexpirationtime"; + $this->result = @ldap_search( $this->connection,$this->dn,"uid=".$uname,$results); + + if ( !$info=@ldap_get_entries( $this->connection, $this->result)) { + $this->ldapErrorCode = ldap_errno( $this->connection); + $this->ldapErrorText = ldap_error( $this->connection); + return false; + } else { + /* Now work out how many days remaining.... + ** Yes, it's very verbose code but I left it like this so it can easily + ** be modified for your needs. + */ + $date = $info[0]["passwordexpirationtime"][0]; + $year = substr( $date,0,4); + $month = substr( $date,4,2); + $day = substr( $date,6,2); + $hour = substr( $date,8,2); + $min = substr( $date,10,2); + $sec = substr( $date,12,2); + + $timestamp = mktime( $hour,$min,$sec,$month,$day,$year); + $today = mktime(); + $diff = $timestamp-$today; + return round( ( ( ( $diff/60)/60)/24)); + } + } + + // 2.3 Group methods --------------------------------------------------------- + + function checkGroup ( $uname,$group) { + /* 2.3.1 : Checks to see if a user is in a given group. If so, it returns + ** true, and returns false if the user isn't in the group, or any other + ** error occurs (eg:- no such user, no group by that name etc.) + */ + + $checkDn = "ou=" .$this->groups. ", " .$this->dn; + + // We need to search for the group in order to get it's entry. + $this->result = @ldap_search( $this->connection, $checkDn, "cn=" .$group); + $info = @ldap_get_entries( $this->connection, $this->result); + + // Only one entry should be returned(no groups will have the same name) + $entry = ldap_first_entry( $this->connection,$this->result); + + if ( !$entry) { + $this->ldapErrorCode = ldap_errno( $this->connection); + $this->ldapErrorText = ldap_error( $this->connection); + return false; // Couldn't find the group... + } + // Get all the member DNs + if ( !$values = @ldap_get_values( $this->connection, $entry, "uniqueMember")) { + $this->ldapErrorCode = ldap_errno( $this->connection); + $this->ldapErrorText = ldap_error( $this->connection); + return false; // No users in the group + } + foreach ( $values as $key => $value) { + /* Loop through all members - see if the uname is there... + ** Also check for sub-groups - this allows us to define a group as + ** having membership of another group. + ** FIXME:- This is pretty ugly code and unoptimised. It takes ages + ** to search if you have sub-groups. + */ + list( $cn,$ou) = explode( ",",$value); + list( $ou_l,$ou_r) = explode( "=",$ou); + + if ( $this->groups==$ou_r) { + list( $cn_l,$cn_r) = explode( "=",$cn); + // OK, So we now check the sub-group... + if ( $this->checkGroup ( $uname,$cn_r)) { + return true; + } + } + + if ( preg_match( "/$uname/i",$value)) { + return true; + } + } + } + + // 2.4 Attribute methods ----------------------------------------------------- + + function getAttribute ( $uname,$attribute) { + /* 2.4.1 : Returns an array containing a set of attribute values. + ** For most searches, this will just be one row, but sometimes multiple + ** results are returned (eg:- multiple email addresses) + */ + + $checkDn = "ou=" .$this->people. ", " .$this->dn; + $results[0] = $attribute; + + // We need to search for this user in order to get their entry. + $this->result = ldap_search( $this->connection, $checkDn, "uid=" .$uname, $results); + $info = ldap_get_entries( $this->connection, $this->result); + + // Only one entry should ever be returned (no user will have the same uid) + $entry = ldap_first_entry( $this->connection, $this->result); + + if ( !$entry) { + $this->ldapErrorCode = -1; + $this->ldapErrorText = "Couldn't find user"; + return false; // Couldn't find the user... + } + + // Get all the member DNs + if ( !$values = @ldap_get_values( $this->connection, $entry, $attribute)) { + $this->ldapErrorCode = ldap_errno( $this->connection); + $this->ldapErrorText = ldap_error( $this->connection); + return false; // No matching attributes + } + + // Return an array containing the attributes. + return $values; + } + + + + function setAttribute( $uname, $attribute, $value) { + /* 2.4.2 : Allows an attribute value to be set. + ** This can only usually be done after an authenticated bind as a + ** directory manager - otherwise, read/write access will not be granted. + */ + + // Construct a full DN... + $attrib_dn = "uid=" .$uname. ",ou=" .$this->people. "," .$this->dn; + $info[$attribute] = $value; + // Change attribute + $this->result = ldap_modify( $this->connection, $attrib_dn, $info); + if ( $this->result) { + // Change went OK + return true; + } else { + // Couldn't change password... + $this->ldapErrorCode = ldap_errno( $this->connection); + $this->ldapErrorText = ldap_error( $this->connection); + return false; + } + } + + /** + * Sets and returns the appropriate dn, based on whether there + * are values in $this->people and $this->groups. + * + * @param $peopleOrGroups + * this boolean specifies whether to build a groups + * dn or a people dn ie. if the boolean is true: + * ou=$this->people,$this->dn else: + * ou=$this->groups,$this->dn + * @return + * the dn to use + */ + function setDn( $peopleOrGroups) { + + if ( $peopleOrGroups) { + if ( isset( $this->people) && ( strlen( $this->people) > 0)) { + $checkDn = "ou=" .$this->people. ", " .$this->dn; + } + } else { + if ( isset( $this->groups) && ( strlen( $this->groups) > 0)) { + $checkDn = "ou=" .$this->groups. ", " .$this->dn; + } + } + + if ( !isset( $checkDn)) { + $checkDn = $this->dn; + } + return $checkDn; + } + // 2.5 User methods ---------------------------------------------------------- + + function getUsers( $search, $attributeArray) { + /* 2.5.1 : Returns an array containing a details of users, sorted by + ** username. The search criteria is a standard LDAP query - * returns all + ** users. The $attributeArray variable contains the required user detail field names + */ + + // builds the appropriate dn, based on whether $this->people and/or $this->group is set + $checkDn = $this->setDn( true); + + // Perform the search and get the entry handles + $this->result = ldap_search( $this->connection, $checkDn, "uid=" .$search); + $info = ldap_get_entries( $this->connection, $this->result); + for( $i = 0; $i < $info["count"]; $i++){ + // Get the username, and create an array indexed by it... + // Modify these as you see fit. + $uname = $info[$i]["uid"][0]; + // add to the array for each attribute in my list + for ( $j = 0; $j < count( $attributeArray); $j++) { + if (strtolower($attributeArray[$j]) == "dn") { + $userslist["$uname"]["$attributeArray[$j]"] = $info[$i][strtolower($attributeArray[$j])]; + } else { + $userslist["$uname"]["$attributeArray[$j]"] = $info[$i][strtolower($attributeArray[$j])][0]; + } + } + } + + if ( !@asort( $userslist)) { + /* Sort into alphabetical order. If this fails, it's because there + ** were no results returned (array is empty) - so just return false. + */ + $this->ldapErrorCode = -1; + $this->ldapErrorText = "No users found matching search criteria ".$search; + return false; + } + return $userslist; + } + +} // End of class + + +?>