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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "ScriptResponseHeaderProcessor.h"
#include "mozilla/Try.h"
#include "mozilla/dom/WorkerRef.h"
#include "mozilla/dom/WorkerScope.h"
namespace mozilla {
namespace dom {
namespace workerinternals {
namespace loader {
NS_IMPL_ISUPPORTS(ScriptResponseHeaderProcessor, nsIRequestObserver);
nsresult ScriptResponseHeaderProcessor::ProcessCrossOriginEmbedderPolicyHeader(
WorkerPrivate* aWorkerPrivate,
nsILoadInfo::CrossOriginEmbedderPolicy aPolicy, bool aIsMainScript) {
MOZ_ASSERT(aWorkerPrivate);
if (aIsMainScript) {
MOZ_TRY(aWorkerPrivate->SetEmbedderPolicy(aPolicy));
} else {
// NOTE: Spec doesn't mention non-main scripts must match COEP header with
// the main script, but it must pass CORP checking.
// see: wpt window-simple-success.https.html, the worker import script
// test-incrementer.js without coep header.
(void)NS_WARN_IF(!aWorkerPrivate->MatchEmbedderPolicy(aPolicy));
}
return NS_OK;
}
// Enforce strict MIME type checks for worker-imported scripts
// https://github.com/whatwg/html/pull/4001
nsresult ScriptResponseHeaderProcessor::EnsureExpectedModuleType(
nsIRequest* aRequest) {
nsCOMPtr<nsIChannel> channel = do_QueryInterface(aRequest);
MOZ_ASSERT(channel);
nsAutoCString mimeType;
channel->GetContentType(mimeType);
NS_ConvertUTF8toUTF16 typeString(mimeType);
if (mModuleType == JS::ModuleType::JavaScript &&
nsContentUtils::IsJavascriptMIMEType(typeString)) {
return NS_OK;
}
if (mModuleType == JS::ModuleType::JSON &&
nsContentUtils::IsJsonMimeType(typeString)) {
return NS_OK;
}
return NS_ERROR_DOM_NETWORK_ERR;
}
nsresult ScriptResponseHeaderProcessor::ProcessCrossOriginEmbedderPolicyHeader(
nsIRequest* aRequest) {
nsCOMPtr<nsIHttpChannelInternal> httpChannel = do_QueryInterface(aRequest);
MOZ_ASSERT(mWorkerRef);
// NOTE: the spec doesn't say what to do with non-HTTP workers.
// See: https://github.com/whatwg/html/issues/4916
if (!httpChannel) {
if (mIsMainScript) {
mWorkerRef->Private()->InheritOwnerEmbedderPolicyOrNull(aRequest);
}
return NS_OK;
}
nsILoadInfo::CrossOriginEmbedderPolicy coep;
MOZ_TRY(httpChannel->GetResponseEmbedderPolicy(
mWorkerRef->Private()->Trials().IsEnabled(
OriginTrial::CoepCredentialless),
&coep));
return ProcessCrossOriginEmbedderPolicyHeader(mWorkerRef->Private(), coep,
mIsMainScript);
}
} // namespace loader
} // namespace workerinternals
} // namespace dom
} // namespace mozilla
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