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HeaderValue::from_str validate if string is visible ascii #524

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HeaderValue::from_str validate if string is visible ascii #524

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16 changes: 13 additions & 3 deletions src/header/value.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -123,7 +123,15 @@ impl HeaderValue {
/// ```
#[inline]
pub fn from_str(src: &str) -> Result<HeaderValue, InvalidHeaderValue> {
HeaderValue::try_from_generic(src, |s| Bytes::copy_from_slice(s.as_bytes()))
for &b in src.as_bytes() {
if !is_visible_ascii(b) {
return Err(InvalidHeaderValue { _priv: () });
}
}
Ok(HeaderValue {
inner: Bytes::copy_from_slice(src.as_bytes()),
is_sensitive: false,
})
}

/// Converts a HeaderName into a HeaderValue
Expand Down Expand Up @@ -203,7 +211,6 @@ impl HeaderValue {
}
}
} else {

if_downcast_into!(T, Bytes, src, {
return HeaderValue {
inner: src,
Expand All @@ -223,7 +230,10 @@ impl HeaderValue {
HeaderValue::try_from_generic(src, std::convert::identity)
}

fn try_from_generic<T: AsRef<[u8]>, F: FnOnce(T) -> Bytes>(src: T, into: F) -> Result<HeaderValue, InvalidHeaderValue> {
fn try_from_generic<T: AsRef<[u8]>, F: FnOnce(T) -> Bytes>(
src: T,
into: F,
) -> Result<HeaderValue, InvalidHeaderValue> {
for &b in src.as_ref() {
if !is_valid(b) {
return Err(InvalidHeaderValue { _priv: () });
Expand Down