Work out which attributes are available to a DN

app/Classes/LDAP/Attribute.php

@@ -120,6 +120,8 @@ class Attribute
 	public function __get(string $key): mixed
 	{
 		return match ($key) {
+			// List all the attributes
+			'attributes' => $this->attributes(),
 			// Can this attribute have more values
 			'can_addvalues' => $this->schema && (! $this->schema->is_single_value) && ((! $this->max_values_count) || ($this->values->count() < $this->max_values_count)),
 			// Schema attribute description
@@ -143,6 +145,11 @@ class Attribute
 		};
 	}
 
+	public function __toString(): string
+	{
+		return $this->__get('name');
+	}
+
 	/**
 	 * Return the hints about this attribute, ie: RDN, Required, etc
 	 *

app/Classes/LDAP/Schema/Base.php

@@ -46,6 +46,16 @@ abstract class Base {
 		}
 	}
 
+	public function __isset(string $key): bool
+	{
+		return isset($this->{$key});
+	}
+
+	public function __toString(): string
+	{
+		return $this->name;
+	}
+
 	/**
 	 * @return string
 	 * @deprecated replace with $class->description

app/Classes/LDAP/Schema/ObjectClass.php

@@ -200,6 +200,9 @@ final class ObjectClass extends Base {
 	public function __get(string $key): mixed
 	{
 		switch ($key) {
+			case 'attributes':
+				return $this->getAllAttrs();
+
 			case 'sup':
 				return $this->sup_classes;
 
@@ -216,6 +219,16 @@ final class ObjectClass extends Base {
 		}
 	}
 
+	/**
+	 * Return a list of attributes that this objectClass provides
+	 *
+	 * @return Collection
+	 */
+	public function getAllAttrs(): Collection
+	{
+		return $this->getMustAttrs()->merge($this->getMayAttrs());
+	}
+
 	/**
 	 * Adds an objectClass to the list of objectClasses that inherit
 	 * from this objectClass.
@@ -229,6 +242,17 @@ final class ObjectClass extends Base {
 		}
 	}
 
+	/**
+	 * Returns the array of objectClass names which inherit from this objectClass.
+	 *
+	 * @return Collection Names of objectClasses which inherit from this objectClass.
+	 * @deprecated use $this->child_objectclasses
+	 */
+	public function getChildObjectClasses(): Collection
+	{
+		return $this->child_objectclasses;
+	}
+
 	/**
 	 * Behaves identically to addMustAttrs, but it operates on the MAY
 	 * attributes of this objectClass.
@@ -397,6 +421,27 @@ final class ObjectClass extends Base {
 		return $result;
 	}
 
+	/**
+	 * Gets the objectClass names from which this objectClass inherits.
+	 *
+	 * @return Collection An array of objectClass names (strings)
+	 * @deprecated use $this->sup_classes;
+	 */
+	public function getSupClasses(): Collection
+	{
+		return $this->sup_classes;
+	}
+
+	/**
+	 * Gets the type of this objectClass: STRUCTURAL, ABSTRACT, or AUXILIARY.
+	 *
+	 * @deprecated use $this->type_name
+	 */
+	public function getType()
+	{
+		return $this->type;
+	}
+
 	/**
 	 * Determine if an array is listed in the may_force attrs
 	 */
@@ -492,35 +537,4 @@ final class ObjectClass extends Base {
 
 		return $i;
 	}
-
-	/**
-	 * Returns the array of objectClass names which inherit from this objectClass.
-	 *
-	 * @return Collection Names of objectClasses which inherit from this objectClass.
-	 * @deprecated use $this->child_objectclasses
-	 */
-	public function getChildObjectClasses(): Collection
-	{
-		return $this->child_objectclasses;
-	}
-
-	/**
-	 * Gets the objectClass names from which this objectClass inherits.
-	 *
-	 * @return array An array of objectClass names (strings)
-	 * @deprecated use $this->sup_classes;
-	 */
-	public function getSupClasses() {
-		return $this->sup_classes;
-	}
-
-	/**
-	 * Gets the type of this objectClass: STRUCTURAL, ABSTRACT, or AUXILIARY.
-	 *
-	 * @deprecated use $this->type_name
-	 */
-	public function getType()
-	{
-		return $this->type;
-	}
 }

app/Ldap/Entry.php

@@ -103,6 +103,21 @@ class Entry extends Model
 		return Crypt::encryptString($this->getDn());
 	}
 
+	/**
+	 * Return a list of available attributes - as per the objectClass entry of the record
+	 *
+	 * @return Collection
+	 */
+	public function getAvailableAttributes(): Collection
+	{
+		$result = collect();
+
+		foreach ($this->objectclass as $oc)
+			$result = $result->merge(config('server')->schema('objectclasses',$oc)->attributes);
+
+		return $result;
+	}
+
 	/**
 	 * Return a list of LDAP internal attributes
 	 *
@@ -115,6 +130,16 @@ class Entry extends Model
 		});
 	}
 
+	/**
+	 * Return a list of attributes without any values
+	 *
+	 * @return Collection
+	 */
+	public function getMissingAttributes(): Collection
+	{
+		return $this->getAvailableAttributes()->diff($this->getVisibleAttributes());
+	}
+
 	/**
 	 * Return this list of user attributes
 	 *