serenity/Userland/Libraries/LibIMAP/Client.h
sin-ack aedb013ee3 LibIMAP+Userland: Convert LibIMAP::Client to the Serenity Stream APIs
You now cannot get an unconnected LibIMAP::Client, but you can still
close it. This makes for a nicer API where we don't have a Client object
in a limbo state between being constructed and being connected.

This code still isn't as nice as it should be, as TLS::TLSv12 is still
not a Core::Stream::Socket subclass, which would allow for consolidating
most of the TLS/non-TLS code into a single implementation.
2022-01-13 15:16:12 +03:30

95 lines
3.7 KiB
C++

/*
* Copyright (c) 2021, Kyle Pereira <hey@xylepereira.me>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Function.h>
#include <LibCore/Promise.h>
#include <LibCore/Stream.h>
#include <LibIMAP/Parser.h>
#include <LibTLS/TLSv12.h>
namespace IMAP {
template<typename T>
using Promise = Core::Promise<T>;
class Client {
AK_MAKE_NONCOPYABLE(Client);
friend class Parser;
public:
static ErrorOr<NonnullOwnPtr<Client>> connect_tls(StringView host, u16 port);
static ErrorOr<NonnullOwnPtr<Client>> connect_plaintext(StringView host, u16 port);
Client(Client&&);
RefPtr<Promise<Empty>> connection_promise()
{
return m_connect_pending;
}
RefPtr<Promise<Optional<Response>>> send_command(Command&&);
RefPtr<Promise<Optional<Response>>> send_simple_command(CommandType);
ErrorOr<void> send_raw(StringView data);
RefPtr<Promise<Optional<SolidResponse>>> login(StringView username, StringView password);
RefPtr<Promise<Optional<SolidResponse>>> list(StringView reference_name, StringView mailbox_name);
RefPtr<Promise<Optional<SolidResponse>>> lsub(StringView reference_name, StringView mailbox_name);
RefPtr<Promise<Optional<SolidResponse>>> select(StringView string);
RefPtr<Promise<Optional<SolidResponse>>> examine(StringView string);
RefPtr<Promise<Optional<SolidResponse>>> search(Optional<String> charset, Vector<SearchKey>&& search_keys, bool uid);
RefPtr<Promise<Optional<SolidResponse>>> fetch(FetchCommand request, bool uid);
RefPtr<Promise<Optional<SolidResponse>>> store(StoreMethod, Sequence, bool silent, Vector<String> const& flags, bool uid);
RefPtr<Promise<Optional<SolidResponse>>> copy(Sequence sequence_set, StringView name, bool uid);
RefPtr<Promise<Optional<SolidResponse>>> create_mailbox(StringView name);
RefPtr<Promise<Optional<SolidResponse>>> delete_mailbox(StringView name);
RefPtr<Promise<Optional<SolidResponse>>> subscribe(StringView mailbox);
RefPtr<Promise<Optional<SolidResponse>>> unsubscribe(StringView mailbox);
RefPtr<Promise<Optional<SolidResponse>>> rename(StringView from, StringView to);
RefPtr<Promise<Optional<Response>>> authenticate(StringView method);
RefPtr<Promise<Optional<ContinueRequest>>> idle();
RefPtr<Promise<Optional<SolidResponse>>> finish_idle();
RefPtr<Promise<Optional<SolidResponse>>> status(StringView mailbox, Vector<StatusItemType> const& types);
RefPtr<Promise<Optional<SolidResponse>>> append(StringView mailbox, Message&& message, Optional<Vector<String>> flags = {}, Optional<Core::DateTime> date_time = {});
bool is_open();
void close();
Function<void(ResponseData&&)> unrequested_response_callback;
private:
Client(StringView host, u16 port, NonnullRefPtr<TLS::TLSv12>);
Client(StringView host, u16 port, NonnullOwnPtr<Core::Stream::Socket>);
void setup_callbacks();
ErrorOr<void> on_ready_to_receive();
ErrorOr<void> on_tls_ready_to_receive();
ErrorOr<void> handle_parsed_response(ParseStatus&& parse_status);
ErrorOr<void> send_next_command();
StringView m_host;
u16 m_port;
bool m_tls;
// FIXME: Convert this to a single `NonnullOwnPtr<Core::Stream::Socket>`
// once `TLS::TLSv12` is converted to a `Socket` as well.
OwnPtr<Core::Stream::Socket> m_socket;
RefPtr<TLS::TLSv12> m_tls_socket;
RefPtr<Promise<Empty>> m_connect_pending {};
int m_current_command = 1;
// Sent but response not received
Vector<RefPtr<Promise<Optional<Response>>>> m_pending_promises;
// Not yet sent
Vector<Command> m_command_queue {};
ByteBuffer m_buffer;
Parser m_parser {};
bool m_expecting_response { false };
};
}