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Make response content-type check case insensitive (#111)

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* Make response content-type check case insensitive

For wordpress compat

* cleaner

* clippy

* fmt

* fmt
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Nutomic 2024-05-06 11:09:23 +02:00 committed by GitHub
parent 24afad7abc
commit cf1f84993b
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1 changed files with 14 additions and 12 deletions
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26
src/fetch/mod.rs
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@ -53,19 +53,21 @@ pub async fn fetch_object_http<T: Clone, Kind: DeserializeOwned>(
url: &Url,
data: &Data<T>,
) -> Result<FetchObjectResponse<Kind>, Error> {
static CONTENT_TYPE: HeaderValue = HeaderValue::from_static(FEDERATION_CONTENT_TYPE);
static ALT_CONTENT_TYPE: HeaderValue = HeaderValue::from_static(
r#"application/ld+json; profile="https://www.w3.org/ns/activitystreams""#,
);
static ALT_CONTENT_TYPE_MASTODON: HeaderValue =
HeaderValue::from_static(r#"application/activity+json; charset=utf-8"#);
let res = fetch_object_http_with_accept(url, data, &CONTENT_TYPE).await?;
static FETCH_CONTENT_TYPE: HeaderValue = HeaderValue::from_static(FEDERATION_CONTENT_TYPE);
const VALID_RESPONSE_CONTENT_TYPES: [&str; 3] = [
FEDERATION_CONTENT_TYPE, // lemmy
r#"application/ld+json; profile="https://www.w3.org/ns/activitystreams""#, // activitypub standard
r#"application/activity+json; charset=utf-8"#, // mastodon
];
let res = fetch_object_http_with_accept(url, data, &FETCH_CONTENT_TYPE).await?;
// Ensure correct content-type to prevent vulnerabilities.
if res.content_type.as_ref() != Some(&CONTENT_TYPE)
&& res.content_type.as_ref() != Some(&ALT_CONTENT_TYPE)
&& res.content_type.as_ref() != Some(&ALT_CONTENT_TYPE_MASTODON)
{
// Ensure correct content-type to prevent vulnerabilities, with case insensitive comparison.
let content_type = res
.content_type
.as_ref()
.and_then(|c| c.to_str().ok())
.ok_or(Error::FetchInvalidContentType(res.url.clone()))?;
if !VALID_RESPONSE_CONTENT_TYPES.contains(&content_type) {
return Err(Error::FetchInvalidContentType(res.url));
}