44 lines
1.7 KiB
Rust
44 lines
1.7 KiB
Rust
//! Helpers for HTTP headers with the `http` crate.
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#![allow(clippy::declare_interior_mutable_const)]
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use http::{header::HeaderName, HeaderValue};
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use ruma_common::api::error::{HeaderDeserializationError, HeaderSerializationError};
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pub use ruma_common::http_headers::{
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ContentDisposition, ContentDispositionParseError, ContentDispositionType, TokenString,
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TokenStringParseError,
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};
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use web_time::{Duration, SystemTime, UNIX_EPOCH};
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/// The [`Cross-Origin-Resource-Policy`] HTTP response header.
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///
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/// [`Cross-Origin-Resource-Policy`]: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cross-Origin-Resource-Policy
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pub const CROSS_ORIGIN_RESOURCE_POLICY: HeaderName =
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HeaderName::from_static("cross-origin-resource-policy");
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/// Convert as `SystemTime` to a HTTP date header value.
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pub fn system_time_to_http_date(
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time: &SystemTime,
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) -> Result<HeaderValue, HeaderSerializationError> {
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let mut buffer = [0; 29];
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let duration =
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time.duration_since(UNIX_EPOCH).map_err(|_| HeaderSerializationError::InvalidHttpDate)?;
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date_header::format(duration.as_secs(), &mut buffer)
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.map_err(|_| HeaderSerializationError::InvalidHttpDate)?;
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Ok(HeaderValue::from_bytes(&buffer).expect("date_header should produce a valid header value"))
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}
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/// Convert a header value representing a HTTP date to a `SystemTime`.
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pub fn http_date_to_system_time(
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value: &HeaderValue,
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) -> Result<SystemTime, HeaderDeserializationError> {
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let bytes = value.as_bytes();
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let ts = date_header::parse(bytes).map_err(|_| HeaderDeserializationError::InvalidHttpDate)?;
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UNIX_EPOCH
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.checked_add(Duration::from_secs(ts))
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.ok_or(HeaderDeserializationError::InvalidHttpDate)
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}
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