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LibWeb: Implement fetch a classic worker script
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parent
d7d84ee931
commit
3dbbb5b263
Notes:
sideshowbarker
2024-07-17 03:03:37 +09:00
Author: https://github.com/ADKaster Commit: https://github.com/SerenityOS/serenity/commit/3dbbb5b263 Pull-request: https://github.com/SerenityOS/serenity/pull/21848 Reviewed-by: https://github.com/awesomekling Reviewed-by: https://github.com/trflynn89
@ -13,6 +13,7 @@
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#include <LibWeb/Fetch/Infrastructure/HTTP/Headers.h>
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#include <LibWeb/Fetch/Infrastructure/HTTP/Requests.h>
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#include <LibWeb/Fetch/Infrastructure/HTTP/Responses.h>
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#include <LibWeb/Fetch/Infrastructure/URL.h>
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#include <LibWeb/HTML/HTMLScriptElement.h>
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#include <LibWeb/HTML/PotentialCORSRequest.h>
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#include <LibWeb/HTML/Scripting/ClassicScript.h>
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@ -32,6 +33,11 @@ OnFetchScriptComplete create_on_fetch_script_complete(JS::Heap& heap, Function<v
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return JS::create_heap_function(heap, move(function));
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}
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PerformTheFetchHook create_perform_the_fetch_hook(JS::Heap& heap, Function<WebIDL::ExceptionOr<void>(JS::NonnullGCPtr<Fetch::Infrastructure::Request>, IsTopLevel, Fetch::Infrastructure::FetchAlgorithms::ProcessResponseConsumeBodyFunction)> function)
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{
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return JS::create_heap_function(heap, move(function));
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}
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ScriptFetchOptions default_classic_script_fetch_options()
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{
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// The default classic script fetch options are a script fetch options whose cryptographic nonce is the empty string,
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@ -335,6 +341,82 @@ WebIDL::ExceptionOr<void> fetch_classic_script(JS::NonnullGCPtr<HTMLScriptElemen
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return {};
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}
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// https://html.spec.whatwg.org/multipage/webappapis.html#fetch-a-classic-worker-script
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WebIDL::ExceptionOr<void> fetch_classic_worker_script(AK::URL const& url, EnvironmentSettingsObject& fetch_client, Fetch::Infrastructure::Request::Destination destination, EnvironmentSettingsObject& settings_object, PerformTheFetchHook perform_fetch, OnFetchScriptComplete on_complete)
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{
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auto& realm = settings_object.realm();
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auto& vm = realm.vm();
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// 1. Let request be a new request whose URL is url, client is fetchClient, destination is destination, initiator type is "other",
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// mode is "same-origin", credentials mode is "same-origin", parser metadata is "not parser-inserted",
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// and whose use-URL-credentials flag is set.
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auto request = Fetch::Infrastructure::Request::create(vm);
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request->set_url(url);
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request->set_client(&fetch_client);
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request->set_destination(destination);
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request->set_initiator_type(Fetch::Infrastructure::Request::InitiatorType::Other);
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// FIXME: Use proper SameOrigin CORS mode once Origins are set properly in WorkerHost processes
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request->set_mode(Fetch::Infrastructure::Request::Mode::NoCORS);
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request->set_credentials_mode(Fetch::Infrastructure::Request::CredentialsMode::SameOrigin);
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request->set_parser_metadata(Fetch::Infrastructure::Request::ParserMetadata::NotParserInserted);
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request->set_use_url_credentials(true);
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auto process_response_consume_body = [&settings_object, on_complete = move(on_complete)](auto response, auto body_bytes) {
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// 1. Set response to response's unsafe response.
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response = response->unsafe_response();
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// 2. If either of the following conditions are met:
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// - bodyBytes is null or failure; or
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// - response's status is not an ok status,
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if (body_bytes.template has<Empty>() || body_bytes.template has<Fetch::Infrastructure::FetchAlgorithms::ConsumeBodyFailureTag>() || !Fetch::Infrastructure::is_ok_status(response->status())) {
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// then run onComplete given null, and abort these steps.
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on_complete->function()(nullptr);
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return;
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}
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// 3. If all of the following are true:
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// - response's URL's scheme is an HTTP(S) scheme; and
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// - the result of extracting a MIME type from response's header list is not a JavaScript MIME type,
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auto maybe_mime_type = MUST(response->header_list()->extract_mime_type());
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if (response->url().has_value() && Fetch::Infrastructure::is_http_or_https_scheme(response->url()->scheme()) && (!maybe_mime_type.has_value() || maybe_mime_type->is_javascript())) {
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dbgln("Invalid non-javascript mime type for worker script at {}", response->url().value());
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// then run onComplete given null, and abort these steps.
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on_complete->function()(nullptr);
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return;
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}
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// NOTE: Other fetch schemes are exempted from MIME type checking for historical web-compatibility reasons.
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// We might be able to tighten this in the future; see https://github.com/whatwg/html/issues/3255.
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// 4. Let sourceText be the result of UTF-8 decoding bodyBytes.
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auto decoder = TextCodec::decoder_for("UTF-8"sv);
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VERIFY(decoder.has_value());
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auto source_text = TextCodec::convert_input_to_utf8_using_given_decoder_unless_there_is_a_byte_order_mark(*decoder, body_bytes.template get<ByteBuffer>()).release_value_but_fixme_should_propagate_errors();
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// 5. Let script be the result of creating a classic script using sourceText, settingsObject,
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// response's URL, and the default classic script fetch options.
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auto response_url = response->url().value_or({});
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auto script = ClassicScript::create(response_url.to_deprecated_string(), source_text, settings_object, response_url);
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// 6. Run onComplete given script.
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on_complete->function()(script);
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};
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// 2. If performFetch was given, run performFetch with request, true, and with processResponseConsumeBody as defined below.
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if (perform_fetch != nullptr) {
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TRY(perform_fetch->function()(request, IsTopLevel::Yes, move(process_response_consume_body)));
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}
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// Otherwise, fetch request with processResponseConsumeBody set to processResponseConsumeBody as defined below.
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else {
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Fetch::Infrastructure::FetchAlgorithms::Input fetch_algorithms_input {};
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fetch_algorithms_input.process_response_consume_body = move(process_response_consume_body);
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TRY(Fetch::Fetching::fetch(realm, request, Fetch::Infrastructure::FetchAlgorithms::create(vm, move(fetch_algorithms_input))));
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}
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return {};
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}
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// https://html.spec.whatwg.org/multipage/webappapis.html#internal-module-script-graph-fetching-procedure
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void fetch_internal_module_script_graph(JS::Realm& realm, JS::ModuleRequest const& module_request, EnvironmentSettingsObject& fetch_client_settings_object, Fetch::Infrastructure::Request::Destination destination, ScriptFetchOptions const& options, Script& referring_script, HashTable<ModuleLocationTuple> const& visited_set, OnFetchScriptComplete on_complete)
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{
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@ -6,6 +6,7 @@
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#pragma once
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#include <LibWeb/Fetch/Infrastructure/FetchAlgorithms.h>
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#include <LibWeb/Fetch/Infrastructure/HTTP/Requests.h>
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#include <LibWeb/HTML/CORSSettingAttribute.h>
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#include <LibWeb/HTML/Scripting/ImportMap.h>
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@ -15,9 +16,16 @@
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namespace Web::HTML {
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enum class IsTopLevel {
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No,
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Yes,
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};
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using OnFetchScriptComplete = JS::NonnullGCPtr<JS::HeapFunction<void(JS::GCPtr<Script>)>>;
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using PerformTheFetchHook = JS::GCPtr<JS::HeapFunction<WebIDL::ExceptionOr<void>(JS::NonnullGCPtr<Fetch::Infrastructure::Request>, IsTopLevel, Fetch::Infrastructure::FetchAlgorithms::ProcessResponseConsumeBodyFunction)>>;
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OnFetchScriptComplete create_on_fetch_script_complete(JS::Heap& heap, Function<void(JS::GCPtr<Script>)> function);
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PerformTheFetchHook create_perform_the_fetch_hook(JS::Heap& heap, Function<WebIDL::ExceptionOr<void>(JS::NonnullGCPtr<Fetch::Infrastructure::Request>, IsTopLevel, Fetch::Infrastructure::FetchAlgorithms::ProcessResponseConsumeBodyFunction)> function);
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// https://html.spec.whatwg.org/multipage/webappapis.html#script-fetch-options
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struct ScriptFetchOptions {
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@ -67,6 +75,7 @@ WebIDL::ExceptionOr<Optional<AK::URL>> resolve_imports_match(DeprecatedString co
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Optional<AK::URL> resolve_url_like_module_specifier(DeprecatedString const& specifier, AK::URL const& base_url);
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WebIDL::ExceptionOr<void> fetch_classic_script(JS::NonnullGCPtr<HTMLScriptElement>, AK::URL const&, EnvironmentSettingsObject& settings_object, ScriptFetchOptions options, CORSSettingAttribute cors_setting, String character_encoding, OnFetchScriptComplete on_complete);
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WebIDL::ExceptionOr<void> fetch_classic_worker_script(AK::URL const&, EnvironmentSettingsObject& fetch_client, Fetch::Infrastructure::Request::Destination, EnvironmentSettingsObject& settings_object, PerformTheFetchHook, OnFetchScriptComplete);
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void fetch_internal_module_script_graph(JS::Realm&, JS::ModuleRequest const& module_request, EnvironmentSettingsObject& fetch_client_settings_object, Fetch::Infrastructure::Request::Destination, ScriptFetchOptions const&, Script& referring_script, HashTable<ModuleLocationTuple> const& visited_set, OnFetchScriptComplete on_complete);
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void fetch_external_module_script_graph(JS::Realm&, AK::URL const&, EnvironmentSettingsObject& settings_object, ScriptFetchOptions const&, OnFetchScriptComplete on_complete);
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void fetch_inline_module_script_graph(JS::Realm&, DeprecatedString const& filename, DeprecatedString const& source_text, AK::URL const& base_url, EnvironmentSettingsObject& settings_object, OnFetchScriptComplete on_complete);
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