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construct/modules/m_room.cc
2018-05-19 18:49:07 -07:00

143 lines
2.5 KiB
C++

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
using namespace ircd;
mapi::header
IRCD_MODULE
{
"Matrix state library; modular components."
};
extern "C" size_t
state__rebuild_present(const m::room &room)
{
size_t ret{0};
const m::room::state state
{
room
};
const auto create_id
{
state.get("m.room.create")
};
m::room::messages it
{
room, create_id
};
if(!it)
return ret;
db::txn txn
{
*m::dbs::events
};
for(; it; ++it)
{
const m::event &event{*it};
if(!defined(json::get<"state_key"_>(event)))
continue;
m::dbs::write_opts opts;
opts.event_idx = it.event_idx();
opts.present = true;
opts.history = false;
opts.head = false;
opts.refs = false;
m::dbs::_index__room_state(txn, event, opts);
m::dbs::_index__room_joined(txn, event, opts);
++ret;
}
txn();
return ret;
}
extern "C" size_t
state__rebuild_history(const m::room &room)
{
size_t ret{0};
const m::room::state state
{
room
};
const auto create_id
{
state.get("m.room.create")
};
m::room::messages it
{
room, create_id
};
if(!it)
return ret;
db::txn txn
{
*m::dbs::events
};
uint r(0);
char root[2][64] {0};
m::dbs::write_opts opts;
opts.root_in = root[++r % 2];
opts.root_out = root[++r % 2];
opts.present = false;
opts.history = true;
opts.head = false;
opts.refs = false;
int64_t depth{0};
for(; it; ++it)
{
const m::event &event{*it};
opts.event_idx = it.event_idx();
if(at<"depth"_>(event) == depth + 1)
++depth;
if(at<"depth"_>(event) != depth)
throw ircd::error
{
"Incomplete room history: gap between %ld and %ld [%s]",
depth,
at<"depth"_>(event),
string_view{at<"event_id"_>(event)}
};
if(at<"type"_>(event) == "m.room.redaction")
{
opts.root_in = m::dbs::_index_redact(txn, event, opts);
opts.root_out = root[++r % 2];
txn();
txn.clear();
}
else if(defined(json::get<"state_key"_>(event)))
{
opts.root_in = m::dbs::_index_state(txn, event, opts);
opts.root_out = root[++r % 2];
txn();
txn.clear();
}
else m::dbs::_index_ephem(txn, event, opts);
++ret;
}
txn();
return ret;
}