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LibWeb: Implement the fetch a classic script AO

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Note that this unfortunately requires the same workaround as <link>
elements to handle CORS cross-origin responses.
This commit is contained in:
Timothy Flynn 2023-05-10 17:03:45 -04:00 • committed by Andreas Kling
parent 00fa23237a
commit 12976b74ca
2 changed files with 158 additions and 0 deletions
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28
Userland/Libraries/LibWeb/HTML/Scripting/Fetching.h
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@ -6,14 +6,41 @@
#pragma once
#include <LibWeb/Fetch/Infrastructure/HTTP/Requests.h>
#include <LibWeb/HTML/CORSSettingAttribute.h>
#include <LibWeb/HTML/Scripting/ImportMap.h>
#include <LibWeb/HTML/Scripting/ModuleMap.h>
#include <LibWeb/HTML/Scripting/ModuleScript.h>
#include <LibWeb/ReferrerPolicy/ReferrerPolicy.h>
namespace Web::HTML {
using OnFetchScriptComplete = JS::SafeFunction<void(JS::GCPtr<Script>)>;
// https://html.spec.whatwg.org/multipage/webappapis.html#script-fetch-options
struct ScriptFetchOptions {
// https://html.spec.whatwg.org/multipage/webappapis.html#concept-script-fetch-options-nonce
String cryptographic_nonce {};
// https://html.spec.whatwg.org/multipage/webappapis.html#concept-script-fetch-options-integrity
String integrity_metadata {};
// https://html.spec.whatwg.org/multipage/webappapis.html#concept-script-fetch-options-parser
Optional<Fetch::Infrastructure::Request::ParserMetadata> parser_metadata;
// https://html.spec.whatwg.org/multipage/webappapis.html#concept-script-fetch-options-credentials
Fetch::Infrastructure::Request::CredentialsMode credentials_mode { Fetch::Infrastructure::Request::CredentialsMode::SameOrigin };
// https://html.spec.whatwg.org/multipage/webappapis.html#concept-script-fetch-options-referrer-policy
Optional<ReferrerPolicy::ReferrerPolicy> referrer_policy;
// https://html.spec.whatwg.org/multipage/webappapis.html#concept-script-fetch-options-render-blocking
bool render_blocking { false };
// https://html.spec.whatwg.org/multipage/webappapis.html#concept-script-fetch-options-fetch-priority
Fetch::Infrastructure::Request::Priority fetch_priority {};
};
class DescendantFetchingContext : public RefCounted<DescendantFetchingContext> {
public:
static NonnullRefPtr<DescendantFetchingContext> create() { return adopt_ref(*new DescendantFetchingContext); }
@ -44,6 +71,7 @@ WebIDL::ExceptionOr<AK::URL> resolve_module_specifier(Optional<Script&> referrin
WebIDL::ExceptionOr<Optional<AK::URL>> resolve_imports_match(DeprecatedString const& normalized_specifier, Optional<AK::URL> as_url, ModuleSpecifierMap const&);
Optional<AK::URL> resolve_url_like_module_specifier(DeprecatedString const& specifier, AK::URL const& base_url);
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);
void fetch_internal_module_script_graph(JS::ModuleRequest const& module_request, EnvironmentSettingsObject& fetch_client_settings_object, StringView destination, Script& referring_script, HashTable<ModuleLocationTuple> const& visited_set, OnFetchScriptComplete on_complete);
void fetch_external_module_script_graph(AK::URL const&, EnvironmentSettingsObject& settings_object, OnFetchScriptComplete on_complete);
void fetch_inline_module_script_graph(DeprecatedString const& filename, DeprecatedString const& source_text, AK::URL const& base_url, EnvironmentSettingsObject& settings_object, OnFetchScriptComplete on_complete);