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warp/
bodyt.rs

1use std::pin::Pin;
2use std::task::{Context, Poll};
3
4use bytes::Buf;
5use bytes::Bytes;
6use futures_util::StreamExt;
7use http_body::Frame;
8use http_body_util::{combinators::BoxBody, BodyExt};
9
10#[derive(Debug)]
11pub struct Body(BoxBody<Bytes, crate::Error>);
12
13impl Default for Body {
14    fn default() -> Self {
15        Body::empty()
16    }
17}
18
19impl http_body::Body for Body {
20    type Data = Bytes;
21    type Error = crate::Error;
22
23    fn poll_frame(
24        mut self: Pin<&mut Self>,
25        cx: &mut Context<'_>,
26    ) -> Poll<Option<Result<Frame<Self::Data>, Self::Error>>> {
27        Pin::new(&mut self.0).poll_frame(cx)
28    }
29
30    fn is_end_stream(&self) -> bool {
31        self.0.is_end_stream()
32    }
33
34    fn size_hint(&self) -> http_body::SizeHint {
35        self.0.size_hint()
36    }
37}
38
39impl Body {
40    pub(crate) fn empty() -> Self {
41        Body(
42            http_body_util::Empty::<Bytes>::new()
43                .map_err(crate::Error::new)
44                .boxed(),
45        )
46    }
47
48    pub(crate) fn wrap<B>(body: B) -> Self
49    where
50        B: http_body::Body + Send + Sync + 'static,
51        B::Error: Into<Box<dyn std::error::Error + Send + Sync>>,
52    {
53        let body = body
54            .map_frame(|f| f.map_data(|mut buf| buf.copy_to_bytes(buf.remaining())))
55            .map_err(crate::Error::new);
56        Body(http_body_util::BodyExt::boxed(body))
57    }
58
59    pub(crate) fn wrap_stream<S, B, E>(stream: S) -> Self
60    where
61        S: futures_util::Stream<Item = Result<B, E>> + Send + Sync + 'static,
62        B: Into<Bytes>,
63        E: Into<Box<dyn std::error::Error + Send + Sync>> + Send + 'static,
64    {
65        let body = http_body_util::StreamBody::new(stream.map(|item| {
66            item.map(|buf| Frame::data(buf.into()))
67                .map_err(crate::Error::new)
68        }));
69        Body(http_body_util::BodyExt::boxed(body))
70    }
71}
72
73impl From<Bytes> for Body {
74    fn from(b: Bytes) -> Self {
75        Body(
76            http_body_util::Full::new(b)
77                .map_err(crate::Error::new)
78                .boxed(),
79        )
80    }
81}
82
83impl From<&'static str> for Body {
84    fn from(s: &'static str) -> Self {
85        Bytes::from(s).into()
86    }
87}
88
89impl From<String> for Body {
90    fn from(s: String) -> Self {
91        Bytes::from(s).into()
92    }
93}
94
95impl From<&'static [u8]> for Body {
96    fn from(v: &'static [u8]) -> Self {
97        Bytes::from(v).into()
98    }
99}
100
101impl From<Vec<u8>> for Body {
102    fn from(v: Vec<u8>) -> Self {
103        Bytes::from(v).into()
104    }
105}
106
107impl From<Option<Bytes>> for Body {
108    fn from(opt: Option<Bytes>) -> Self {
109        match opt {
110            Some(b) => b.into(),
111            None => Body::empty(),
112        }
113    }
114}