Validates an integer value based on a schema.

Validates a null value based on a schema.

Validates a number value based on a schema.

Validates an object value based on a schema.

Validates a string value based on a schema.

Handles sending a password retrieval email to a user.

Ajax handler for generating a password in the no-privilege context.

Ajax handler sends a password reset link.

Unschedules all events attached to the hook with the specified arguments.

Creates and logs a user request to perform a specific action.