e800605ad3
This URL library ends up being a relatively fundamental base library of the system, as LibCore depends on LibURL. This change has two main benefits: * Moving AK back more towards being an agnostic library that can be used between the kernel and userspace. URL has never really fit that description - and is not used in the kernel. * URL _should_ depend on LibUnicode, as it needs punnycode support. However, it's not really possible to do this inside of AK as it can't depend on any external library. This change brings us a little closer to being able to do that, but unfortunately we aren't there quite yet, as the code generators depend on LibCore.
132 lines
3.1 KiB
C++
132 lines
3.1 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2023, Tim Flynn <trflynn89@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/JsonValue.h>
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#include <AK/NumericLimits.h>
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#include <LibCore/AnonymousBuffer.h>
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#include <LibCore/DateTime.h>
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#include <LibCore/Proxy.h>
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#include <LibCore/Socket.h>
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#include <LibIPC/Decoder.h>
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#include <LibIPC/File.h>
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#include <LibURL/URL.h>
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#include <fcntl.h>
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namespace IPC {
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ErrorOr<size_t> Decoder::decode_size()
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{
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return static_cast<size_t>(TRY(decode<u32>()));
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}
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template<>
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ErrorOr<String> decode(Decoder& decoder)
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{
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auto length = TRY(decoder.decode_size());
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return String::from_stream(decoder.stream(), length);
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}
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template<>
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ErrorOr<ByteString> decode(Decoder& decoder)
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{
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auto length = TRY(decoder.decode_size());
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if (length == NumericLimits<u32>::max())
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return ByteString {};
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if (length == 0)
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return ByteString::empty();
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return ByteString::create_and_overwrite(length, [&](Bytes bytes) -> ErrorOr<void> {
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TRY(decoder.decode_into(bytes));
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return {};
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});
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}
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template<>
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ErrorOr<ByteBuffer> decode(Decoder& decoder)
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{
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auto length = TRY(decoder.decode_size());
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if (length == 0)
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return ByteBuffer {};
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auto buffer = TRY(ByteBuffer::create_uninitialized(length));
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auto bytes = buffer.bytes();
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TRY(decoder.decode_into(bytes));
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return buffer;
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}
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template<>
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ErrorOr<JsonValue> decode(Decoder& decoder)
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{
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auto json = TRY(decoder.decode<ByteString>());
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return JsonValue::from_string(json);
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}
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template<>
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ErrorOr<Duration> decode(Decoder& decoder)
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{
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auto nanoseconds = TRY(decoder.decode<i64>());
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return AK::Duration::from_nanoseconds(nanoseconds);
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}
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template<>
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ErrorOr<UnixDateTime> decode(Decoder& decoder)
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{
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auto nanoseconds = TRY(decoder.decode<i64>());
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return AK::UnixDateTime::from_nanoseconds_since_epoch(nanoseconds);
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}
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template<>
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ErrorOr<URL::URL> decode(Decoder& decoder)
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{
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auto url = TRY(decoder.decode<ByteString>());
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return URL::URL { url };
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}
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template<>
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ErrorOr<File> decode(Decoder& decoder)
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{
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int fd = TRY(decoder.socket().receive_fd(O_CLOEXEC));
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return File { fd, File::ConstructWithReceivedFileDescriptor };
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}
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template<>
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ErrorOr<Empty> decode(Decoder&)
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{
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return Empty {};
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}
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template<>
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ErrorOr<Core::AnonymousBuffer> decode(Decoder& decoder)
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{
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if (auto valid = TRY(decoder.decode<bool>()); !valid)
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return Core::AnonymousBuffer {};
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auto size = TRY(decoder.decode_size());
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auto anon_file = TRY(decoder.decode<IPC::File>());
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return Core::AnonymousBuffer::create_from_anon_fd(anon_file.take_fd(), size);
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}
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template<>
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ErrorOr<Core::DateTime> decode(Decoder& decoder)
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{
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auto timestamp = TRY(decoder.decode<i64>());
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return Core::DateTime::from_timestamp(static_cast<time_t>(timestamp));
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}
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template<>
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ErrorOr<Core::ProxyData> decode(Decoder& decoder)
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{
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auto type = TRY(decoder.decode<Core::ProxyData::Type>());
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auto host_ipv4 = TRY(decoder.decode<u32>());
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auto port = TRY(decoder.decode<int>());
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return Core::ProxyData { type, host_ipv4, port };
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}
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}
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