mirror of
https://github.com/matrix-construct/construct
synced 2024-12-24 14:34:00 +01:00
688 lines
17 KiB
C++
688 lines
17 KiB
C++
// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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using namespace ircd;
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mapi::header
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IRCD_MODULE
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{
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"Client 6.2.3 :initialSync"
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};
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const string_view
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initialsync_description
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{R"(
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6.2.3
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This returns the full state for this user, with an optional limit on the number
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of messages per room to return.
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This endpoint was deprecated in r0 of this specification. Clients should instead
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call the /sync API with no since parameter.
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)"};
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//
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// sync resource
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//
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m::resource
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initialsync_resource
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{
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"/_matrix/client/r0/initialSync",
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{
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initialsync_description
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}
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};
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m::resource::response
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initialsync(client &client,
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const m::resource::request &request);
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m::resource::method
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get_initialsync
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{
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initialsync_resource, "GET", initialsync,
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{
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get_initialsync.REQUIRES_AUTH,
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-1s // No timer for this method.
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}
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};
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conf::item<size_t>
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initialsync_limit_default
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{
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{ "name", "ircd.client.initialsync.limit.default" },
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{ "default", 16L },
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};
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conf::item<size_t>
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initialsync_limit_max
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{
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{ "name", "ircd.client.initialsync.limit.max" },
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{ "default", 64L },
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};
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static void
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_initialsync(client &client,
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const m::resource::request &request,
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json::stack::object &out);
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m::resource::response
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initialsync(client &client,
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const m::resource::request &request)
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try
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{
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const auto &filter_id
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{
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request.query["filter"]
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};
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const auto &set_presence
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{
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request.query.get("set_presence", "online"_sv)
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};
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const auto &limit{[&request]
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{
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auto ret(request.query.get("limit", size_t(initialsync_limit_default)));
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ret = std::min(ret, size_t(initialsync_limit_max));
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return ret;
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}()};
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// Due to the way json::stack works the chunk buffer must be at least
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// the size of an appended input (for ex. a json::tuple). In our case this
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// buffer must hold a 64_KiB worst-case event and then a little extra.
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const unique_buffer<mutable_buffer> buf
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{
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128_KiB
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};
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m::resource::response::chunked response
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{
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client, http::OK, "application/json; charset=utf-8"
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};
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json::stack out
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{
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buf, [&response](const const_buffer &buf)
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{
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response.write(buf);
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return buf;
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}
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};
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json::stack::object object{out};
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_initialsync(client, request, object);
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return {};
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}
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catch(const std::exception &e)
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{
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log::error
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{
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"Initial sync for %s from %s failed because :%s",
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request.user_id,
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string(remote(client)),
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e.what()
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};
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throw;
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}
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static void
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initialsync_rooms(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &);
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static void
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initialsync_presence(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user &user);
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static void
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initialsync_account_data(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &);
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void
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_initialsync(client &client,
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const m::resource::request &request,
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json::stack::object &out)
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{
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const m::user user{request.user_id};
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const m::user::room user_room{user};
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const auto next_batch
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{
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int64_t(m::vm::sequence::retired)
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};
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// rooms
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{
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json::stack::member member{out, "rooms"};
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json::stack::object object{member};
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initialsync_rooms(client, request, object, user_room);
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}
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// presence
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{
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json::stack::member member{out, "presence"};
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json::stack::object object{member};
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initialsync_presence(client, request, object, user);
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}
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// account_data
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{
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json::stack::member member{out, "account_data"};
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json::stack::object object{member};
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initialsync_account_data(client, request, object, user_room);
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}
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// next_batch
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{
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json::stack::member member
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{
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out, "next_batch", json::value{next_batch}
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};
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}
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}
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void
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initialsync_presence(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user &user)
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{
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json::stack::member member{out, "events"};
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json::stack::array array{member};
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const m::user::mitsein mitsein{user};
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mitsein.for_each("join", [&array]
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(const m::user &user)
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{
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m::presence::get(std::nothrow, user, [&array]
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(const json::object &event)
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{
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json::stack::object object{array};
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// sender
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{
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json::stack::member member
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{
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object, "sender", unquote(event.get("user_id"))
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};
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}
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// type
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{
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json::stack::member member
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{
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object, "type", json::value{"m.presence"}
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};
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}
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// content
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{
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json::stack::member member
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{
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object, "content", event
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};
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}
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});
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return true;
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});
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}
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void
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initialsync_account_data(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room)
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{
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json::stack::member member{out, "events"};
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json::stack::array array{member};
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const m::room::state state{user_room};
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state.for_each("ircd.account_data", [&array]
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(const m::event &event)
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{
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json::stack::object object{array};
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// type
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{
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json::stack::member member
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{
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object, "type", at<"state_key"_>(event)
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};
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}
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// content
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{
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json::stack::member member
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{
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object, "content", at<"content"_>(event)
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};
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}
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});
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}
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static void
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initialsync_rooms_join(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room);
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static void
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initialsync_rooms_leave(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room);
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static void
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initialsync_rooms_invite(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room);
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void
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initialsync_rooms(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room)
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{
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// join
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{
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json::stack::member member{out, "join"};
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json::stack::object object{member};
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initialsync_rooms_join(client, request, object, user_room);
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}
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// leave
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{
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json::stack::member member{out, "leave"};
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json::stack::object object{member};
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initialsync_rooms_leave(client, request, object, user_room);
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}
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// invite
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{
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json::stack::member member{out, "invite"};
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json::stack::object object{member};
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initialsync_rooms_invite(client, request, object, user_room);
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}
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}
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void
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initialsync_rooms__membership(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room,
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const string_view &membership);
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void
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initialsync_rooms_join(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room)
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{
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initialsync_rooms__membership(client, request, out, user_room, "join");
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}
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void
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initialsync_rooms_leave(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room)
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{
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initialsync_rooms__membership(client, request, out, user_room, "leave");
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}
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void
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initialsync_rooms_invite(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room)
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{
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initialsync_rooms__membership(client, request, out, user_room, "invite");
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}
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static void
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initialsync_room(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room,
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const m::room &room,
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const string_view &membership);
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void
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initialsync_rooms__membership(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room,
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const string_view &membership)
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{
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const m::user::rooms rooms
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{
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user_room.user
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};
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rooms.for_each(membership, [&client, &request, &out, &user_room, &membership]
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(const m::room &room, const string_view &)
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{
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const m::room::id &room_id{room.room_id};
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json::stack::member member{out, room_id};
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json::stack::object object{member};
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initialsync_room(client, request, object, user_room, room_id, membership);
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});
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}
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static void
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initialsync_room_state(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room,
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const m::room &room);
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static void
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initialsync_room_timeline(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room,
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const m::room &room);
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static void
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initialsync_room_ephemeral(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room,
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const m::room &room);
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static void
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initialsync_room_account_data(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room,
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const m::room &room);
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static void
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initialsync_room_unread_notifications(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room,
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const m::room &room);
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void
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initialsync_room(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room,
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const m::room &room,
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const string_view &membership)
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{
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// state
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{
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json::stack::member member
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{
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out, membership != "invite"?
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"state":
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"invite_state"
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};
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json::stack::object object{member};
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initialsync_room_state(client, request, object, user_room, room);
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}
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// timeline
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{
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json::stack::member member{out, "timeline"};
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json::stack::object object{member};
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initialsync_room_timeline(client, request, object, user_room, room);
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}
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// ephemeral
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{
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json::stack::member member{out, "ephemeral"};
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json::stack::object object{member};
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initialsync_room_ephemeral(client, request, object, user_room, room);
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}
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// account_data
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{
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json::stack::member member{out, "account_data"};
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json::stack::object object{member};
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initialsync_room_ephemeral(client, request, object, user_room, room);
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}
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// unread_notifications
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{
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json::stack::member member{out, "unread_notifications"};
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json::stack::object object{member};
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initialsync_room_unread_notifications(client, request, object, user_room, room);
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}
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}
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void
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initialsync_room_state(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room,
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const m::room &room)
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{
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json::stack::array array
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{
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out, "events"
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};
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const m::room::state state
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{
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room
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};
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state.for_each([&array](const m::event &event)
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{
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array.append(event);
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});
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}
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static m::event::id::buf
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initialsync_room_timeline_events(client &client,
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const m::resource::request &request,
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json::stack::array &out,
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const m::user::room &user_room,
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const m::room &room);
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void
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initialsync_room_timeline(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room,
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const m::room &room)
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{
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// events
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m::event::id::buf prev;
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{
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json::stack::array array
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{
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out, "events"
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};
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prev = initialsync_room_timeline_events(client, request, array, user_room, room);
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}
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// prev_batch
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{
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json::stack::member member
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{
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out, "prev_batch", string_view{prev}
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};
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}
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// limited
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{
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json::stack::member member
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{
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out, "limited", json::value{false}
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};
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}
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}
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m::event::id::buf
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initialsync_room_timeline_events(client &client,
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const m::resource::request &request,
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json::stack::array &out,
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const m::user::room &user_room,
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const m::room &room)
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{
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// messages seeks to the newest event, but the client wants the oldest
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// event first so we seek down first and then iterate back up. Due to
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// an issue with rocksdb's prefix-iteration this iterator becomes
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// toxic as soon as it becomes invalid. As a result we have to copy the
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// event_id on the way down in case of renewing the iterator for the
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// way back. This is not a big deal but rocksdb should fix their shit.
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ssize_t i(0);
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m::event::idx event_idx{0};
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m::event::id::buf event_id;
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m::room::events it{room};
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for(; it && i < 10; --it, ++i)
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{
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event_idx = it.event_idx();
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event_id = m::event_id(event_idx);
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}
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if(i > 0 && !it)
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it.seek(event_idx);
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if(i > 0)
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for(; it && i > -1; ++it, --i)
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out.append(*it);
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return event_id;
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}
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static void
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initialsync_room_ephemeral_events(client &client,
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const m::resource::request &request,
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json::stack::array &out,
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const m::room &room);
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void
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initialsync_room_ephemeral(client &client,
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const m::resource::request &request,
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json::stack::object &out,
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const m::user::room &user_room,
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const m::room &room)
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{
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{
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json::stack::member member{out, "events"};
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json::stack::array array{member};
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initialsync_room_ephemeral_events(client, request, array, room);
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}
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}
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void
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initialsync_room_ephemeral_events(client &client,
|
|
const m::resource::request &request,
|
|
json::stack::array &events,
|
|
const m::room &room)
|
|
{
|
|
const m::room::members members{room};
|
|
//TODO: We're skipping receipts from members who left so we enjoy the
|
|
//TODO: joined members optimizations. Need to figure out if anyone
|
|
//TODO: left in the synced timeline and include them manually.
|
|
members.for_each("join", [&events, &room]
|
|
(const m::user &user)
|
|
{
|
|
const m::user::room user_room{user};
|
|
user_room.get(std::nothrow, "ircd.read", room.room_id, [&events, &room, &user]
|
|
(const m::event &event)
|
|
{
|
|
//TODO: skip if receipt is not for event we're actually syncing
|
|
//TODO: in the related messages timeline array.
|
|
|
|
json::stack::object object{events};
|
|
|
|
// type
|
|
{
|
|
json::stack::member member
|
|
{
|
|
object, "type", "m.receipt"
|
|
};
|
|
}
|
|
|
|
// content
|
|
{
|
|
const json::object data
|
|
{
|
|
at<"content"_>(event)
|
|
};
|
|
|
|
thread_local char buf[1024];
|
|
const json::members reformat
|
|
{
|
|
{ unquote(data.at("event_id")),
|
|
{
|
|
{ "m.read",
|
|
{
|
|
{ at<"sender"_>(event),
|
|
{
|
|
{ "ts", data.at("ts") }
|
|
}}
|
|
}}
|
|
}}
|
|
};
|
|
|
|
json::stack::member member
|
|
{
|
|
object, "content", json::stringify(mutable_buffer{buf}, reformat)
|
|
};
|
|
}
|
|
});
|
|
|
|
return true;
|
|
});
|
|
}
|
|
|
|
void
|
|
initialsync_room_account_data(client &client,
|
|
const m::resource::request &request,
|
|
json::stack::object &out,
|
|
const m::user::room &user_room,
|
|
const m::room &room)
|
|
{
|
|
|
|
}
|
|
|
|
void
|
|
initialsync_room_unread_notifications(client &client,
|
|
const m::resource::request &request,
|
|
json::stack::object &out,
|
|
const m::user::room &user_room,
|
|
const m::room &room)
|
|
{
|
|
// highlight_count
|
|
{
|
|
json::stack::member member
|
|
{
|
|
out, "highlight_count", json::value{0L}
|
|
};
|
|
}
|
|
|
|
// notification_count
|
|
{
|
|
json::stack::member member
|
|
{
|
|
out, "notification_count", json::value{0L}
|
|
};
|
|
}
|
|
}
|