93 lines
3.9 KiB
C++
93 lines
3.9 KiB
C++
/*
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* Copyright (c) 2022, Andrew Kaster <akaster@serenityos.org>
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* Copyright (c) 2023, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Base64.h>
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#include <AK/String.h>
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#include <AK/Utf8View.h>
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#include <AK/Vector.h>
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#include <LibTextCodec/Decoder.h>
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#include <LibWeb/Fetch/FetchMethod.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/HTML/WindowOrWorkerGlobalScope.h>
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#include <LibWeb/Infra/Base64.h>
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#include <LibWeb/WebIDL/DOMException.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::HTML {
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WindowOrWorkerGlobalScopeMixin::~WindowOrWorkerGlobalScopeMixin() = default;
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// https://html.spec.whatwg.org/multipage/webappapis.html#dom-origin
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WebIDL::ExceptionOr<String> WindowOrWorkerGlobalScopeMixin::origin() const
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{
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auto& vm = this_impl().vm();
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// The origin getter steps are to return this's relevant settings object's origin, serialized.
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return TRY_OR_THROW_OOM(vm, String::from_deprecated_string(relevant_settings_object(this_impl()).origin().serialize()));
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}
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// https://html.spec.whatwg.org/multipage/webappapis.html#dom-issecurecontext
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bool WindowOrWorkerGlobalScopeMixin::is_secure_context() const
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{
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// The isSecureContext getter steps are to return true if this's relevant settings object is a secure context, or false otherwise.
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return HTML::is_secure_context(relevant_settings_object(this_impl()));
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}
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// https://html.spec.whatwg.org/multipage/webappapis.html#dom-crossoriginisolated
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bool WindowOrWorkerGlobalScopeMixin::cross_origin_isolated() const
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{
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// The crossOriginIsolated getter steps are to return this's relevant settings object's cross-origin isolated capability.
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return relevant_settings_object(this_impl()).cross_origin_isolated_capability() == CanUseCrossOriginIsolatedAPIs::Yes;
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}
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// https://html.spec.whatwg.org/multipage/webappapis.html#dom-btoa
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WebIDL::ExceptionOr<String> WindowOrWorkerGlobalScopeMixin::btoa(String const& data) const
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{
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auto& vm = this_impl().vm();
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auto& realm = *vm.current_realm();
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// The btoa(data) method must throw an "InvalidCharacterError" DOMException if data contains any character whose code point is greater than U+00FF.
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Vector<u8> byte_string;
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byte_string.ensure_capacity(data.bytes().size());
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for (u32 code_point : Utf8View(data)) {
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if (code_point > 0xff)
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return WebIDL::InvalidCharacterError::create(realm, "Data contains characters outside the range U+0000 and U+00FF");
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byte_string.append(code_point);
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}
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// Otherwise, the user agent must convert data to a byte sequence whose nth byte is the eight-bit representation of the nth code point of data,
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// and then must apply forgiving-base64 encode to that byte sequence and return the result.
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return TRY_OR_THROW_OOM(vm, encode_base64(byte_string.span()));
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}
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// https://html.spec.whatwg.org/multipage/webappapis.html#dom-atob
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WebIDL::ExceptionOr<String> WindowOrWorkerGlobalScopeMixin::atob(String const& data) const
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{
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auto& vm = this_impl().vm();
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auto& realm = *vm.current_realm();
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// 1. Let decodedData be the result of running forgiving-base64 decode on data.
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auto decoded_data = Infra::decode_forgiving_base64(data.bytes_as_string_view());
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// 2. If decodedData is failure, then throw an "InvalidCharacterError" DOMException.
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if (decoded_data.is_error())
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return WebIDL::InvalidCharacterError::create(realm, "Input string is not valid base64 data");
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// 3. Return decodedData.
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// decode_base64() returns a byte string. LibJS uses UTF-8 for strings. Use Latin1Decoder to convert bytes 128-255 to UTF-8.
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auto decoder = TextCodec::decoder_for("windows-1252"sv);
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VERIFY(decoder.has_value());
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return TRY_OR_THROW_OOM(vm, decoder->to_utf8(decoded_data.value()));
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}
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JS::NonnullGCPtr<JS::Promise> WindowOrWorkerGlobalScopeMixin::fetch(Fetch::RequestInfo const& input, Fetch::RequestInit const& init) const
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{
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auto& vm = this_impl().vm();
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return Fetch::fetch(vm, input, init);
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}
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}
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