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LibWeb: Add FIXME: for new step 6 of Fetch's "main fetch"

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This step was added in this commit:
2d78995db8
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Sam Atkins 2023-04-19 15:49:15 +01:00 • committed by Linus Groh
parent b7e847e58b
commit 955528055c
1 changed files with 19 additions and 18 deletions
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37
Userland/Libraries/LibWeb/Fetch/Fetching/Fetching.cpp
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@ -218,8 +218,9 @@ WebIDL::ExceptionOr<Optional<JS::NonnullGCPtr<PendingResponse>>> main_fetch(JS::
// FIXME: 4. Run report Content Security Policy violations for request. // FIXME: 4. Run report Content Security Policy violations for request.
// FIXME: 5. Upgrade request to a potentially trustworthy URL, if appropriate. // FIXME: 5. Upgrade request to a potentially trustworthy URL, if appropriate.
// FIXME: 6. Upgrade a mixed content request to a potentially trustworthy URL, if appropriate.
// 6. If should request be blocked due to a bad port, should fetching request be blocked as mixed content, or // 7. If should request be blocked due to a bad port, should fetching request be blocked as mixed content, or
// should request be blocked by Content Security Policy returns blocked, then set response to a network error. // should request be blocked by Content Security Policy returns blocked, then set response to a network error.
if (Infrastructure::block_bad_port(request) == Infrastructure::RequestOrResponseBlocking::Blocked if (Infrastructure::block_bad_port(request) == Infrastructure::RequestOrResponseBlocking::Blocked
|| false // FIXME: "should fetching request be blocked as mixed content" || false // FIXME: "should fetching request be blocked as mixed content"
@ -228,14 +229,14 @@ WebIDL::ExceptionOr<Optional<JS::NonnullGCPtr<PendingResponse>>> main_fetch(JS::
response = Infrastructure::Response::network_error(vm, "Request was blocked"sv); response = Infrastructure::Response::network_error(vm, "Request was blocked"sv);
} }
// 7. If request’s referrer policy is the empty string, then set request’s referrer policy to request’s policy // 8. If request’s referrer policy is the empty string, then set request’s referrer policy to request’s policy
// container’s referrer policy. // container’s referrer policy.
if (!request->referrer_policy().has_value()) { if (!request->referrer_policy().has_value()) {
VERIFY(request->policy_container().has<HTML::PolicyContainer>()); VERIFY(request->policy_container().has<HTML::PolicyContainer>());
request->set_referrer_policy(request->policy_container().get<HTML::PolicyContainer>().referrer_policy); request->set_referrer_policy(request->policy_container().get<HTML::PolicyContainer>().referrer_policy);
} }
// 8. If request’s referrer is not "no-referrer", then set request’s referrer to the result of invoking determine // 9. If request’s referrer is not "no-referrer", then set request’s referrer to the result of invoking determine
// request’s referrer. // request’s referrer.
// NOTE: As stated in Referrer Policy, user agents can provide the end user with options to override request’s // NOTE: As stated in Referrer Policy, user agents can provide the end user with options to override request’s
// referrer to "no-referrer" or have it expose less sensitive information. // referrer to "no-referrer" or have it expose less sensitive information.
@ -248,7 +249,7 @@ WebIDL::ExceptionOr<Optional<JS::NonnullGCPtr<PendingResponse>>> main_fetch(JS::
request->set_referrer(Infrastructure::Request::Referrer::NoReferrer); request->set_referrer(Infrastructure::Request::Referrer::NoReferrer);
} }
// 9. Set request’s current URL’s scheme to "https" if all of the following conditions are true: // 10. Set request’s current URL’s scheme to "https" if all of the following conditions are true:
if ( if (
// - request’s current URL’s scheme is "http" // - request’s current URL’s scheme is "http"
request->current_url().scheme() == "http"sv request->current_url().scheme() == "http"sv
@ -361,19 +362,19 @@ WebIDL::ExceptionOr<Optional<JS::NonnullGCPtr<PendingResponse>>> main_fetch(JS::
}; };
if (recursive == Recursive::Yes) { if (recursive == Recursive::Yes) {
// 11. If response is null, then set response to the result of running the steps corresponding to the first // 12. If response is null, then set response to the result of running the steps corresponding to the first
// matching statement: // matching statement:
auto pending_response = !response auto pending_response = !response
? TRY(get_response()) ? TRY(get_response())
: PendingResponse::create(vm, request, *response); : PendingResponse::create(vm, request, *response);
// 12. If recursive is true, then return response. // 13. If recursive is true, then return response.
return pending_response; return pending_response;
} }
// 10. If recursive is false, then run the remaining steps in parallel. // 11. If recursive is false, then run the remaining steps in parallel.
Platform::EventLoopPlugin::the().deferred_invoke([&realm, &vm, &fetch_params, request, response, get_response = move(get_response)] { Platform::EventLoopPlugin::the().deferred_invoke([&realm, &vm, &fetch_params, request, response, get_response = move(get_response)] {
// 11. If response is null, then set response to the result of running the steps corresponding to the first // 12. If response is null, then set response to the result of running the steps corresponding to the first
// matching statement: // matching statement:
auto pending_response = PendingResponse::create(vm, request, Infrastructure::Response::create(vm)); auto pending_response = PendingResponse::create(vm, request, Infrastructure::Response::create(vm));
if (!response) { if (!response) {
@ -386,7 +387,7 @@ WebIDL::ExceptionOr<Optional<JS::NonnullGCPtr<PendingResponse>>> main_fetch(JS::
dbgln_if(WEB_FETCH_DEBUG, "Fetch: Running 'main fetch' pending_response load callback"); dbgln_if(WEB_FETCH_DEBUG, "Fetch: Running 'main fetch' pending_response load callback");
if (response_was_null) if (response_was_null)
response = resolved_response; response = resolved_response;
// 13. If response is not a network error and response is not a filtered response, then: // 14. If response is not a network error and response is not a filtered response, then:
if (!response->is_network_error() && !is<Infrastructure::FilteredResponse>(*response)) { if (!response->is_network_error() && !is<Infrastructure::FilteredResponse>(*response)) {
// 1. If request’s response tainting is "cors", then: // 1. If request’s response tainting is "cors", then:
if (request->response_tainting() == Infrastructure::Request::ResponseTainting::CORS) { if (request->response_tainting() == Infrastructure::Request::ResponseTainting::CORS) {
@ -421,26 +422,26 @@ WebIDL::ExceptionOr<Optional<JS::NonnullGCPtr<PendingResponse>>> main_fetch(JS::
}()); }());
} }
// 14. Let internalResponse be response, if response is a network error, and response’s internal response // 15. Let internalResponse be response, if response is a network error, and response’s internal response
// otherwise. // otherwise.
auto internal_response = response->is_network_error() auto internal_response = response->is_network_error()
? JS::NonnullGCPtr { *response } ? JS::NonnullGCPtr { *response }
: static_cast<Infrastructure::FilteredResponse&>(*response).internal_response(); : static_cast<Infrastructure::FilteredResponse&>(*response).internal_response();
// 15. If internalResponse’s URL list is empty, then set it to a clone of request’s URL list. // 16. If internalResponse’s URL list is empty, then set it to a clone of request’s URL list.
// NOTE: A response’s URL list can be empty (for example, when the response represents an about URL). // NOTE: A response’s URL list can be empty (for example, when the response represents an about URL).
if (internal_response->url_list().is_empty()) if (internal_response->url_list().is_empty())
internal_response->set_url_list(request->url_list()); internal_response->set_url_list(request->url_list());
// 16. If request has a redirect-tainted origin, then set internalResponse’s has-cross-origin-redirects to true. // 17. If request has a redirect-tainted origin, then set internalResponse’s has-cross-origin-redirects to true.
if (request->has_redirect_tainted_origin()) if (request->has_redirect_tainted_origin())
internal_response->set_has_cross_origin_redirects(true); internal_response->set_has_cross_origin_redirects(true);
// 17. If request’s timing allow failed flag is unset, then set internalResponse’s timing allow passed flag. // 18. If request’s timing allow failed flag is unset, then set internalResponse’s timing allow passed flag.
if (!request->timing_allow_failed()) if (!request->timing_allow_failed())
internal_response->set_timing_allow_passed(true); internal_response->set_timing_allow_passed(true);
// 18. If response is not a network error and any of the following returns blocked // 19. If response is not a network error and any of the following returns blocked
if (!response->is_network_error() && ( if (!response->is_network_error() && (
// FIXME: - should internalResponse to request be blocked as mixed content // FIXME: - should internalResponse to request be blocked as mixed content
false false
@ -454,7 +455,7 @@ WebIDL::ExceptionOr<Optional<JS::NonnullGCPtr<PendingResponse>>> main_fetch(JS::
response = internal_response = Infrastructure::Response::network_error(vm, TRY_OR_IGNORE("Response was blocked"_string)); response = internal_response = Infrastructure::Response::network_error(vm, TRY_OR_IGNORE("Response was blocked"_string));
} }
// 19. If response’s type is "opaque", internalResponse’s status is 206, internalResponse’s range-requested // 20. If response’s type is "opaque", internalResponse’s status is 206, internalResponse’s range-requested
// flag is set, and request’s header list does not contain `Range`, then set response and // flag is set, and request’s header list does not contain `Range`, then set response and
// internalResponse to a network error. // internalResponse to a network error.
// NOTE: Traditionally, APIs accept a ranged response even if a range was not requested. This prevents a // NOTE: Traditionally, APIs accept a ranged response even if a range was not requested. This prevents a
@ -467,14 +468,14 @@ WebIDL::ExceptionOr<Optional<JS::NonnullGCPtr<PendingResponse>>> main_fetch(JS::
response = internal_response = Infrastructure::Response::network_error(vm, TRY_OR_IGNORE("Response has status 206 and 'range-requested' flag set, but request has no 'Range' header"_string)); response = internal_response = Infrastructure::Response::network_error(vm, TRY_OR_IGNORE("Response has status 206 and 'range-requested' flag set, but request has no 'Range' header"_string));
} }
// 20. If response is not a network error and either request’s method is `HEAD` or `CONNECT`, or // 21. If response is not a network error and either request’s method is `HEAD` or `CONNECT`, or
// internalResponse’s status is a null body status, set internalResponse’s body to null and disregard // internalResponse’s status is a null body status, set internalResponse’s body to null and disregard
// any enqueuing toward it (if any). // any enqueuing toward it (if any).
// NOTE: This standardizes the error handling for servers that violate HTTP. // NOTE: This standardizes the error handling for servers that violate HTTP.
if (!response->is_network_error() && (StringView { request->method() }.is_one_of("HEAD"sv, "CONNECT"sv) || Infrastructure::is_null_body_status(internal_response->status()))) if (!response->is_network_error() && (StringView { request->method() }.is_one_of("HEAD"sv, "CONNECT"sv) || Infrastructure::is_null_body_status(internal_response->status())))
internal_response->set_body({}); internal_response->set_body({});
// 21. If request’s integrity metadata is not the empty string, then: // 22. If request’s integrity metadata is not the empty string, then:
if (!request->integrity_metadata().is_empty()) { if (!request->integrity_metadata().is_empty()) {
// 1. Let processBodyError be this step: run fetch response handover given fetchParams and a network // 1. Let processBodyError be this step: run fetch response handover given fetchParams and a network
// error. // error.
@ -495,7 +496,7 @@ WebIDL::ExceptionOr<Optional<JS::NonnullGCPtr<PendingResponse>>> main_fetch(JS::
// FIXME: 4. Fully read response’s body given processBody and processBodyError. // FIXME: 4. Fully read response’s body given processBody and processBodyError.
} }
// 22. Otherwise, run fetch response handover given fetchParams and response. // 23. Otherwise, run fetch response handover given fetchParams and response.
else { else {
TRY_OR_IGNORE(fetch_response_handover(realm, fetch_params, *response)); TRY_OR_IGNORE(fetch_response_handover(realm, fetch_params, *response));
} }