actix_web/http/header/
mod.rs

1//! A Collection of Header implementations for common HTTP Headers.
2//!
3//! ## Mime Types
4//! Several header fields use MIME values for their contents. Keeping with the strongly-typed theme,
5//! the [mime] crate is used in such headers as [`ContentType`] and [`Accept`].
6
7use std::fmt;
8
9// re-export from actix-http
10// - header name / value types
11// - relevant traits for converting to header name / value
12// - all const header names
13// - header map
14// - the few typed headers from actix-http
15// - header parsing utils
16pub use actix_http::header::*;
17use bytes::{Bytes, BytesMut};
18
19mod accept;
20mod accept_charset;
21mod accept_encoding;
22mod accept_language;
23mod allow;
24mod cache_control;
25mod content_disposition;
26mod content_language;
27mod content_length;
28mod content_range;
29mod content_type;
30mod date;
31mod encoding;
32mod entity;
33mod etag;
34mod expires;
35mod if_match;
36mod if_modified_since;
37mod if_none_match;
38mod if_range;
39mod if_unmodified_since;
40mod last_modified;
41mod macros;
42mod preference;
43mod range;
44
45#[cfg(test)]
46pub(crate) use self::macros::common_header_test;
47pub(crate) use self::macros::{common_header, common_header_test_module};
48pub use self::{
49    accept::Accept,
50    accept_charset::AcceptCharset,
51    accept_encoding::AcceptEncoding,
52    accept_language::AcceptLanguage,
53    allow::Allow,
54    cache_control::{CacheControl, CacheDirective},
55    content_disposition::{ContentDisposition, DispositionParam, DispositionType},
56    content_language::ContentLanguage,
57    content_length::ContentLength,
58    content_range::{ContentRange, ContentRangeSpec},
59    content_type::ContentType,
60    date::Date,
61    encoding::Encoding,
62    entity::EntityTag,
63    etag::ETag,
64    expires::Expires,
65    if_match::IfMatch,
66    if_modified_since::IfModifiedSince,
67    if_none_match::IfNoneMatch,
68    if_range::IfRange,
69    if_unmodified_since::IfUnmodifiedSince,
70    last_modified::LastModified,
71    preference::Preference,
72    range::{ByteRangeSpec, Range},
73};
74
75/// Format writer ([`fmt::Write`]) for a [`BytesMut`].
76#[derive(Debug, Default)]
77struct Writer {
78    buf: BytesMut,
79}
80
81impl Writer {
82    /// Constructs new bytes writer.
83    pub fn new() -> Writer {
84        Writer::default()
85    }
86
87    /// Splits bytes out of writer, leaving writer buffer empty.
88    pub fn take(&mut self) -> Bytes {
89        self.buf.split().freeze()
90    }
91}
92
93impl fmt::Write for Writer {
94    #[inline]
95    fn write_str(&mut self, s: &str) -> fmt::Result {
96        self.buf.extend_from_slice(s.as_bytes());
97        Ok(())
98    }
99
100    #[inline]
101    fn write_fmt(&mut self, args: fmt::Arguments<'_>) -> fmt::Result {
102        fmt::write(self, args)
103    }
104}
actix_web/http/header/mod.rs

actix_web/http/header/
mod.rs
