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modules/m_bridge: Add event picker; txn append.

This commit is contained in:
Jason Volk 2021-02-03 14:37:58 -08:00
parent 32bd0d7764
commit 51dd6bfa05

View file

@ -384,6 +384,16 @@ catch(const std::exception &e)
return range_.first;
}
namespace ircd::m::bridge
{
static bool pick_alias(const config &, const event::idx &, const event &, const room &, const json::array &);
static bool pick_room(const config &, const event::idx &, const event &, const room &, const json::array &);
static bool pick_user(const config &, const event::idx &, const event &, const json::array &, const m::user::id &);
static bool pick_user(const config &, const event::idx &, const event &, const room &, const json::array &);
static bool pick(const config &, const event::idx &, const event &);
static bool append(const config &, json::stack::array &, events::range &, size_t &, const event::idx &, const event &);
}
size_t
ircd::m::bridge::make_txn(const config &config,
json::stack &out,
@ -400,32 +410,202 @@ ircd::m::bridge::make_txn(const config &config,
};
size_t count {0};
m::events::for_each(events::range{range}, [&]
(const event::idx &event_idx, m::event event)
m::events::for_each(m::events::range{range}, [&]
(const event::idx &event_idx, const event &event)
{
if(m::internal(json::get<"room_id"_>(event)))
if(!pick(config, event_idx, event))
return true;
m::event::append::opts opts;
opts.event_idx = &event_idx;
opts.query_txnid = false;
opts.query_prev_state = true;
opts.query_redacted = false;
m::event::append
{
events, event
};
if(!append(config, events, range, count, event_idx, event))
return false;
range.second = event_idx;
++count;
const bool sufficient_buffer
{
out.remaining() > event::MAX_SIZE + 16_KiB
};
return sufficient_buffer;
return true;
});
return count;
}
bool
ircd::m::bridge::append(const config &config,
json::stack::array &events,
events::range &range,
size_t &count,
const event::idx &event_idx,
const event &event)
{
event::append::opts opts;
opts.event_idx = &event_idx;
opts.query_txnid = false;
opts.query_prev_state = true;
opts.query_redacted = false;
event::append
{
events, event, opts
};
log::debug
{
log, "[%s] ADD %s in %s idx:%lu txn:%lu:%lu events:%zu buffer:%zu",
json::get<"id"_>(config),
string_view{event.event_id},
json::get<"room_id"_>(event),
event_idx,
range.first,
range.second,
count,
events.s->remaining(),
};
++count;
range.second = event_idx;
const bool sufficient_buffer
{
events.s->remaining() > event::MAX_SIZE + 16_KiB
};
return sufficient_buffer;
}
bool
ircd::m::bridge::pick(const config &config,
const event::idx &event_idx,
const event &event)
{
const room room
{
json::get<"room_id"_>(event)
};
if(internal(room))
return false;
const bridge::namespaces &namespaces
{
json::get<"namespaces"_>(config)
};
return false
|| pick_user(config, event_idx, event, room, json::get<"users"_>(namespaces))
|| pick_room(config, event_idx, event, room, json::get<"rooms"_>(namespaces))
|| pick_alias(config, event_idx, event, room, json::get<"aliases"_>(namespaces))
;
}
bool
ircd::m::bridge::pick_user(const config &config,
const event::idx &event_idx,
const event &event,
const room &room,
const json::array &namespaces)
{
const m::user::id &sender
{
json::get<"sender"_>(event)
};
// Bridged user is the sender
if(pick_user(config, event_idx, event, namespaces, sender))
return true;
// Bridged user is target of a membership state transition
if(json::get<"type"_>(event) == "m.room.member")
{
// event::conforms ensures this is always a valid user_id
const user::id &state_key
{
json::get<"state_key"_>(event)
};
if(pick_user(config, event_idx, event, namespaces, state_key))
return true;
}
const room::members members
{
room
};
// Bridged user is in the room.
return !members.for_each("join", my_host(), [&]
(const id::user &user_id)
{
return !pick_user(config, event_idx, event, namespaces, user_id);
});
}
bool
ircd::m::bridge::pick_user(const config &config,
const event::idx &event_idx,
const event &event,
const json::array &namespaces,
const user::id &user_id)
{
for(const json::object object : namespaces)
{
const bridge::namespace_ ns
{
object
};
const globular_imatch match
{
json::get<"regex"_>(ns)
};
if(match(user_id))
return true;
}
return false;
}
bool
ircd::m::bridge::pick_room(const config &config,
const event::idx &event_idx,
const event &event,
const room &room,
const json::array &namespaces)
{
for(const json::object object : namespaces)
{
const bridge::namespace_ ns
{
object
};
const globular_imatch match
{
json::get<"regex"_>(ns)
};
if(match(room.room_id))
return true;
}
return false;
}
bool
ircd::m::bridge::pick_alias(const config &config,
const event::idx &event_idx,
const event &event,
const room &room,
const json::array &namespaces)
{
for(const json::object object : namespaces)
{
const bridge::namespace_ ns
{
object
};
const globular_imatch match
{
json::get<"regex"_>(ns)
};
//TODO: XXX
}
return false;
}