Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-09-27 23:30:08 +01:00
Code Issues Projects Releases Packages Wiki Activity

Add resource header for mime sniffing (#39167)

Browse source 
The concept of a "resource header" is not well specced, since it is
unclear what a "resource" is. That said, it most closely matches a
"response" as part of the navigation params.

With this change, we now delay loading the document until either two
things happen:
1. We reached the end of the file
2. We processed 1445 bytes (as defined by spec)

We initially store bytes in the resource header and then after loading
parse the stored bytes. Any subsequent loading will process as before.

Part of #14024

Signed-off-by: Tim van der Lippe <tvanderlippe@gmail.com>
This commit is contained in:
Tim van der Lippe 2025-09-07 14:31:57 +02:00 • committed by GitHub
parent e3de39893f
commit a672ffb850
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
7 changed files with 133 additions and 83 deletions
Download patch file Download diff file Expand all files Collapse all files

16
components/shared/net/lib.rs
View file

@ -137,6 +137,19 @@ pub enum ReferrerPolicy {
StrictOriginWhenCrossOrigin,
}
impl ReferrerPolicy {
/// <https://w3c.github.io/webappsec-referrer-policy/#parse-referrer-policy-from-header>
pub fn parse_header_for_response(headers: &Option<Serde<HeaderMap>>) -> Self {
// Step 4. Return policy.
headers
.as_ref()
// Step 1. Let policy-tokens be the result of extracting header list values given `Referrer-Policy` and response’s header list.
.and_then(|headers| headers.typed_get::<ReferrerPolicyHeader>())
// Step 2-3.
.into()
}
}
impl Display for ReferrerPolicy {
fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
let string = match self {
@ -154,8 +167,11 @@ impl Display for ReferrerPolicy {
}
}
/// <https://w3c.github.io/webappsec-referrer-policy/#parse-referrer-policy-from-header>
impl From<Option<ReferrerPolicyHeader>> for ReferrerPolicy {
fn from(header: Option<ReferrerPolicyHeader>) -> Self {
// Step 2. Let policy be the empty string.
// Step 3. For each token in policy-tokens, if token is a referrer policy and token is not the empty string, then set policy to token.
header.map_or(ReferrerPolicy::EmptyString, |policy| match policy {
ReferrerPolicyHeader::NO_REFERRER => ReferrerPolicy::NoReferrer,
ReferrerPolicyHeader::NO_REFERRER_WHEN_DOWNGRADE => {

2
components/shared/net/policy_container.rs
View file

@ -32,7 +32,7 @@ pub struct PolicyContainer {
/// <https://html.spec.whatwg.org/multipage/#policy-container-csp-list>
pub csp_list: Option<CspList>,
/// <https://html.spec.whatwg.org/multipage/#policy-container-referrer-policy>
referrer_policy: ReferrerPolicy,
pub referrer_policy: ReferrerPolicy,
// https://html.spec.whatwg.org/multipage/#policy-container-embedder-policy
// TODO: Embedder Policy
}