Type Alias EntityResolver 

pub type EntityResolver = Arc<dyn Fn(ExternalEntityRequest<'_>) -> Option<String> + Send + Sync>;

A callback for resolving external entities.

Returns Some(replacement_text) to expand the entity, or None to reject the reference (which will produce a parse error or, in recovery mode, an empty expansion).

Security

Warning: Enabling external entity resolution opens the door to XML External Entity (XXE) attacks. Only use this with trusted input, and consider restricting which URIs the resolver is willing to fetch.

Aliased Type

pub struct EntityResolver { /* private fields */ }