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Switch to data_url::mime for document content type (#36522)

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The data_url Mime parser has a more conformant behavior in most cases,
including dealing with charsets.

Testing: wpt expectations with new passes are updated.

Signed-off-by: webbeef <me@webbeef.org>
This commit is contained in:
webbeef 2025-04-15 10:12:48 -07:00 • committed by GitHub
parent 32d59cfff4
commit 98884a5081
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GPG key ID: B5690EEEBB952194
10 changed files with 112 additions and 178 deletions
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51
components/script/dom/xmlhttprequest.rs
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@ -12,6 +12,7 @@ use std::time::{Duration, Instant};
use constellation_traits::BlobImpl;
use content_security_policy as csp;
use data_url::mime::Mime;
use dom_struct::dom_struct;
use encoding_rs::{Encoding, UTF_8};
use headers::{ContentLength, ContentType, HeaderMapExt};
@ -25,7 +26,6 @@ use js::jsval::{JSVal, NullValue};
use js::rust::wrappers::JS_ParseJSON;
use js::rust::{HandleObject, MutableHandleValue};
use js::typedarray::{ArrayBuffer, ArrayBufferU8};
use mime::{self, Mime, Name};
use net_traits::http_status::HttpStatus;
use net_traits::request::{CredentialsMode, Referrer, RequestBuilder, RequestId, RequestMode};
use net_traits::{
@ -70,6 +70,7 @@ use crate::dom::workerglobalscope::WorkerGlobalScope;
use crate::dom::xmlhttprequesteventtarget::XMLHttpRequestEventTarget;
use crate::dom::xmlhttprequestupload::XMLHttpRequestUpload;
use crate::fetch::FetchCanceller;
use crate::mime::{APPLICATION, CHARSET, HTML, MimeExt, TEXT, XML};
use crate::network_listener::{self, PreInvoke, ResourceTimingListener};
use crate::script_runtime::{CanGc, JSContext};
use crate::task_source::{SendableTaskSource, TaskSourceName};
@ -727,21 +728,19 @@ impl XMLHttpRequestMethods<crate::DomTypeHolder> for XMLHttpRequest {
let ct = request.headers.typed_get::<ContentType>();
if let Some(ct) = ct {
if let Some(encoding) = encoding {
let mime: Mime = ct.into();
for param in mime.params() {
if param.0 == mime::CHARSET &&
!param.1.as_ref().eq_ignore_ascii_case(encoding)
{
let new_params: Vec<(Name, Name)> = mime
.params()
.filter(|p| p.0 != mime::CHARSET)
.map(|p| (p.0, p.1))
let mime: Mime = ct.to_string().parse().unwrap();
for param in mime.parameters.iter() {
if param.0 == CHARSET && !param.1.eq_ignore_ascii_case(encoding) {
let params_iter = mime.parameters.iter();
let new_params: Vec<(String, String)> = params_iter
.filter(|p| p.0 != CHARSET)
.map(|p| (p.0.clone(), p.1.clone()))
.collect();
let new_mime = format!(
"{}/{}; charset={}{}{}",
mime.type_().as_ref(),
mime.subtype().as_ref(),
mime.type_,
mime.subtype,
encoding,
if new_params.is_empty() { "" } else { "; " },
new_params
@ -750,8 +749,9 @@ impl XMLHttpRequestMethods<crate::DomTypeHolder> for XMLHttpRequest {
.collect::<Vec<String>>()
.join("; ")
);
let new_mime: Mime = new_mime.parse().unwrap();
request.headers.typed_insert(ContentType::from(new_mime))
request
.headers
.typed_insert(ContentType::from_str(&new_mime).unwrap())
}
}
}
@ -1327,7 +1327,7 @@ impl XMLHttpRequest {
let mime = self
.final_mime_type()
.as_ref()
.map(|m| normalize_type_string(m.as_ref()))
.map(|m| normalize_type_string(&m.to_string()))
.unwrap_or("".to_owned());
// Step 3, 4
@ -1377,7 +1377,7 @@ impl XMLHttpRequest {
let charset = self.final_charset().unwrap_or(UTF_8);
let temp_doc: DomRoot<Document>;
match mime_type {
Some(ref mime) if mime.type_() == mime::TEXT && mime.subtype() == mime::HTML => {
Some(ref mime) if mime.matches(TEXT, HTML) => {
// Step 4
if self.response_type.get() == XMLHttpRequestResponseType::_empty {
return None;
@ -1399,9 +1399,9 @@ impl XMLHttpRequest {
}
},
Some(ref mime)
if (mime.type_() == mime::TEXT && mime.subtype() == mime::XML) ||
(mime.type_() == mime::APPLICATION && mime.subtype() == mime::XML) ||
mime.suffix() == Some(mime::XML) =>
if mime.matches(TEXT, XML) ||
mime.matches(APPLICATION, XML) ||
mime.has_suffix(XML) =>
{
temp_doc = self.handle_xml(can_gc);
// Not sure it the parser should throw an error for this case
@ -1598,14 +1598,14 @@ impl XMLHttpRequest {
// 3. If responseMIME’s parameters["charset"] exists, then set label to it.
let response_charset = self
.response_mime_type()
.and_then(|mime| mime.get_param(mime::CHARSET).map(|c| c.to_string()));
.and_then(|mime| mime.get_parameter(CHARSET).map(|c| c.to_string()));
// 4. If xhr’s override MIME type’s parameters["charset"] exists, then set label to it.
let override_charset = self
.override_mime_type
.borrow()
.as_ref()
.and_then(|mime| mime.get_param(mime::CHARSET).map(|c| c.to_string()));
.and_then(|mime| mime.get_parameter(CHARSET).map(|c| c.to_string()));
// 5. If label is null, then return null.
// 6. Let encoding be the result of getting an encoding from label.
@ -1625,15 +1625,14 @@ impl XMLHttpRequest {
.parse()
.ok()
})
.or(Some(mime::TEXT_XML));
.or(Some(Mime::new(TEXT, XML)));
}
/// <https://xhr.spec.whatwg.org/#final-mime-type>
fn final_mime_type(&self) -> Option<Mime> {
if self.override_mime_type.borrow().is_some() {
self.override_mime_type.borrow().clone()
} else {
self.response_mime_type()
match *self.override_mime_type.borrow() {
Some(ref override_mime) => Some(override_mime.clone()),
None => self.response_mime_type(),
}
}
}