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mod.rs
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mod.rs
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//! Pre-defined `HeaderName`s, traits for parsing and conversion, and other header utility methods.
use percent_encoding::{AsciiSet, CONTROLS};
// re-export from http except header map related items
pub use http::header::{
HeaderName, HeaderValue, InvalidHeaderName, InvalidHeaderValue, ToStrError,
};
// re-export const header names
pub use http::header::{
ACCEPT, ACCEPT_CHARSET, ACCEPT_ENCODING, ACCEPT_LANGUAGE, ACCEPT_RANGES,
ACCESS_CONTROL_ALLOW_CREDENTIALS, ACCESS_CONTROL_ALLOW_HEADERS,
ACCESS_CONTROL_ALLOW_METHODS, ACCESS_CONTROL_ALLOW_ORIGIN,
ACCESS_CONTROL_EXPOSE_HEADERS, ACCESS_CONTROL_MAX_AGE,
ACCESS_CONTROL_REQUEST_HEADERS, ACCESS_CONTROL_REQUEST_METHOD, AGE, ALLOW, ALT_SVC,
AUTHORIZATION, CACHE_CONTROL, CONNECTION, CONTENT_DISPOSITION, CONTENT_ENCODING,
CONTENT_LANGUAGE, CONTENT_LENGTH, CONTENT_LOCATION, CONTENT_RANGE,
CONTENT_SECURITY_POLICY, CONTENT_SECURITY_POLICY_REPORT_ONLY, CONTENT_TYPE, COOKIE,
DATE, DNT, ETAG, EXPECT, EXPIRES, FORWARDED, FROM, HOST, IF_MATCH,
IF_MODIFIED_SINCE, IF_NONE_MATCH, IF_RANGE, IF_UNMODIFIED_SINCE, LAST_MODIFIED,
LINK, LOCATION, MAX_FORWARDS, ORIGIN, PRAGMA, PROXY_AUTHENTICATE,
PROXY_AUTHORIZATION, PUBLIC_KEY_PINS, PUBLIC_KEY_PINS_REPORT_ONLY, RANGE, REFERER,
REFERRER_POLICY, REFRESH, RETRY_AFTER, SEC_WEBSOCKET_ACCEPT,
SEC_WEBSOCKET_EXTENSIONS, SEC_WEBSOCKET_KEY, SEC_WEBSOCKET_PROTOCOL,
SEC_WEBSOCKET_VERSION, SERVER, SET_COOKIE, STRICT_TRANSPORT_SECURITY, TE, TRAILER,
TRANSFER_ENCODING, UPGRADE, UPGRADE_INSECURE_REQUESTS, USER_AGENT, VARY, VIA,
WARNING, WWW_AUTHENTICATE, X_CONTENT_TYPE_OPTIONS, X_DNS_PREFETCH_CONTROL,
X_FRAME_OPTIONS, X_XSS_PROTECTION,
};
use crate::{error::ParseError, HttpMessage};
mod as_name;
mod into_pair;
mod into_value;
pub(crate) mod map;
mod shared;
mod utils;
#[doc(hidden)]
pub use self::shared::*;
pub use self::as_name::AsHeaderName;
pub use self::into_pair::IntoHeaderPair;
pub use self::into_value::IntoHeaderValue;
pub use self::map::{GetAll, HeaderMap, Removed};
pub use self::utils::{
fmt_comma_delimited, from_comma_delimited, from_one_raw_str, http_percent_encode,
};
/// A trait for any object that already represents a valid header field and value.
pub trait Header: IntoHeaderValue {
/// Returns the name of the header field
fn name() -> HeaderName;
/// Parse a header
fn parse<T: HttpMessage>(msg: &T) -> Result<Self, ParseError>;
}
/// Convert `http::HeaderMap` to our `HeaderMap`.
impl From<http::HeaderMap> for HeaderMap {
fn from(mut map: http::HeaderMap) -> HeaderMap {
HeaderMap::from_drain(map.drain())
}
}
/// This encode set is used for HTTP header values and is defined at
/// <https://tools.ietf.org/html/rfc5987#section-3.2>.
pub(crate) const HTTP_VALUE: &AsciiSet = &CONTROLS
.add(b' ')
.add(b'"')
.add(b'%')
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.add(b'(')
.add(b')')
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.add(b',')
.add(b'/')
.add(b':')
.add(b';')
.add(b'<')
.add(b'-')
.add(b'>')
.add(b'?')
.add(b'[')
.add(b'\\')
.add(b']')
.add(b'{')
.add(b'}');