mirror of
https://github.com/matrix-construct/construct
synced 2024-10-31 10:58:54 +01:00
335 lines
6.5 KiB
C++
335 lines
6.5 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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ircd::mapi::header
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IRCD_MODULE
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{
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"Client Sync :Room Account Data"
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};
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namespace ircd::m::sync
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{
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static bool room_account_data_polylog_tags(data &);
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static bool room_account_data_polylog_events_event(data &, const m::event &);
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static bool room_account_data_polylog_events(data &);
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static bool room_account_data_polylog(data &);
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static bool room_account_data_linear_tags(data &, const m::event &);
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static bool room_account_data_linear_events(data &, const m::event &);
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static bool room_account_data_linear(data &);
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extern item room_account_data;
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}
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decltype(ircd::m::sync::room_account_data)
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ircd::m::sync::room_account_data
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{
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"rooms.account_data",
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room_account_data_polylog,
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room_account_data_linear,
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{
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{ "initial", true }
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}
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};
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bool
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ircd::m::sync::room_account_data_linear(data &data)
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{
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if(!data.event || !data.event_idx)
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return false;
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const m::event &event{*data.event};
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if(json::get<"room_id"_>(event) != data.user_room.room_id)
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return false;
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json::stack::checkpoint checkpoint
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{
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*data.out
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};
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if(room_account_data_linear_events(data, event))
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return true;
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checkpoint.rollback();
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if(room_account_data_linear_tags(data, event))
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return true;
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checkpoint.rollback();
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return false;
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}
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bool
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ircd::m::sync::room_account_data_linear_events(data &data,
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const m::event &event)
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{
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if(!json::get<"state_key"_>(event))
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return false;
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const auto type
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{
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split(json::get<"type"_>(event), '!')
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};
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if(type.first != "ircd.account_data")
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return false;
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if(!type.second)
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return false;
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const m::room room
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{
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lstrip(json::get<"type"_>(event), type.first)
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};
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char membuf[MEMBERSHIP_MAX_SIZE];
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const auto membership
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{
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room.membership(membuf, data.user)
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};
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if(!membership)
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return false;
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json::stack::object rooms
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{
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*data.out, "rooms"
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};
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json::stack::object membership_
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{
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*data.out, membership
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};
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json::stack::object room_
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{
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*data.out, room.room_id
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};
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json::stack::object account_data
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{
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*data.out, "account_data"
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};
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json::stack::array array
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{
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*data.out, "events"
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};
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const scope_restore room__{data.room, &room};
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const scope_restore range_upper{data.range.second, data.event_idx + 1};
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return room_account_data_polylog_events_event(data, event);
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}
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bool
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ircd::m::sync::room_account_data_linear_tags(data &data,
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const m::event &event)
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{
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if(!json::get<"state_key"_>(event))
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return false;
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const auto type
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{
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split(json::get<"type"_>(event), '!')
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};
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if(type.first != "ircd.room_tag")
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return false;
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if(!type.second)
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return false;
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const m::room room
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{
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lstrip(json::get<"type"_>(event), type.first)
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};
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char membuf[MEMBERSHIP_MAX_SIZE];
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const auto membership
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{
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room.membership(membuf, data.user)
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};
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if(!membership)
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return false;
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json::stack::object rooms
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{
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*data.out, "rooms"
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};
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json::stack::object membership_
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{
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*data.out, membership
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};
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json::stack::object room_
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{
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*data.out, room.room_id
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};
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json::stack::object account_data
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{
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*data.out, "account_data"
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};
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json::stack::array array
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{
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*data.out, "events"
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};
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// Due to room tags being "all one event" we have to iterate all of the
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// tags for this room for this user polylog style. This is because the
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// merge algorithm for linear /sync isn't sophisticated enough to see
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// past the events[] array and know to combine all of room tags into
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// the required format. The event_idx is hacked to 0 here to trick the
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// polylog apropos() into composing all tags unconditionally.
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const scope_restore range_lower{data.range.first, 0UL};
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const scope_restore room__{data.room, &room};
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return room_account_data_polylog_tags(data);
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}
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bool
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ircd::m::sync::room_account_data_polylog(data &data)
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{
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json::stack::array array
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{
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*data.out, "events"
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};
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bool ret{false};
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if(!data.phased || int64_t(data.range.first) > 0L)
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ret |= room_account_data_polylog_events(data);
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ret |= room_account_data_polylog_tags(data);
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return ret;
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}
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bool
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ircd::m::sync::room_account_data_polylog_events(data &data)
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{
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assert(data.room);
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char typebuf[m::user::room_account_data::typebuf_size];
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const auto type
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{
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m::user::room_account_data::_type(typebuf, data.room->room_id)
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};
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bool ret{false};
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data.user_state.for_each(type, [&data, &ret]
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(const string_view &type, const string_view &state_key, const m::event::idx &event_idx)
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{
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if(!apropos(data, event_idx))
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return true;
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static const event::fetch::opts fopts
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{
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event::keys::include {"content"}
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};
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m::event::fetch event
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{
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event_idx, std::nothrow, fopts
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};
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if(!event.valid)
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return true;
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json::get<"state_key"_>(event) = state_key;
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ret |= room_account_data_polylog_events_event(data, event);
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return true;
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});
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return ret;
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}
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bool
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ircd::m::sync::room_account_data_polylog_events_event(data &data,
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const m::event &event)
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{
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json::stack::object object
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{
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*data.out
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};
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json::stack::member
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{
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object, "type", at<"state_key"_>(event)
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};
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json::stack::member
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{
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object, "content", at<"content"_>(event)
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};
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return true;
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}
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bool
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ircd::m::sync::room_account_data_polylog_tags(data &data)
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{
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json::stack::object object
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{
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*data.out
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};
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json::stack::member
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{
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object, "type", "m.tag"
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};
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json::stack::object content
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{
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object, "content"
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};
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json::stack::object tags
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{
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content, "tags"
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};
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assert(data.room);
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char typebuf[m::user::room_tags::typebuf_size];
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const auto type
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{
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m::user::room_tags::_type(typebuf, data.room->room_id)
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};
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bool ret{false};
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data.user_state.for_each(type, [&data, &tags, &ret]
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(const string_view &type, const string_view &state_key, const m::event::idx &event_idx)
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{
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// We have to ignore the since range here or Riot will forget or overwrite tags.
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//if(!apropos(data, event_idx))
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// return true;
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static const event::fetch::opts fopts
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{
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event::keys::include {"content"}
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};
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const m::event::fetch event
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{
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event_idx, std::nothrow, fopts
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};
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if(!event.valid)
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return true;
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json::stack::member tag
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{
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tags, state_key, json::get<"content"_>(event)
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};
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ret = true;
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return true;
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});
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return ret;
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}
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