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use form_data::{FormData, Limits};
use viz_utils::futures::future::BoxFuture;
use crate::{
http,
types::{Payload, PayloadDetect, PayloadError},
Context, Extract, Result,
};
pub type Multipart<T = http::Body> = FormData<T>;
impl Extract for Multipart {
type Error = PayloadError;
#[inline]
fn extract(cx: &mut Context) -> BoxFuture<'_, Result<Self, Self::Error>> {
Box::pin(async move { cx.multipart() })
}
}
impl PayloadDetect for Multipart {
#[inline]
fn detect(m: &mime::Mime) -> bool {
m.type_() == mime::MULTIPART && m.subtype() == mime::FORM_DATA
}
}
impl Context {
pub fn multipart(&mut self) -> Result<Multipart, PayloadError> {
let mut payload = Payload::<Multipart>::new();
let limits = &self.config().limits.multipart;
payload.set_limit(limits.stream_size.unwrap_or(Limits::DEFAULT_STREAM_SIZE));
let m = payload.check_header(self.mime(), self.size())?;
let boundary = m.get_param(mime::BOUNDARY);
if boundary.is_none() {
return Err(PayloadError::Parse);
}
let boundary = boundary.unwrap().as_str();
Ok(Multipart::with_limits(
self.take_body().ok_or(PayloadError::Read)?,
boundary,
limits.clone(),
))
}
}