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Code Issues Releases Wiki Activity

modules/client/rooms/join: Tweak the lazychain process; remove cruft.

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This commit is contained in:
Jason Volk 2019-06-06 18:24:14 -07:00
parent e8b61b0caf
commit 48a8057cb5
1 changed files with 47 additions and 12 deletions
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59
modules/client/rooms/join.cc
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@ -375,12 +375,6 @@ bootstrap_eval_state(const json::array &state)
void
bootstrap_eval_auth_chain(const json::array &auth_chain)
{
log::info
{
m::log, "Auth chain %zu events",
auth_chain.size()
};
m::vm::opts opts;
opts.infolog_accept = true;
opts.fetch = false;
@ -395,15 +389,56 @@ bootstrap_eval_auth_chain(const json::array &auth_chain)
return;
}
std::vector<m::event> auth_events(begin(auth_chain), end(auth_chain));
std::sort(begin(auth_events), end(auth_events));
for(const auto &event : auth_events)
// Parse and sort the auth_chain first so we don't have to keep scanning
// the JSON to do the various operations that follow.
std::vector<m::event> events(begin(auth_chain), end(auth_chain));
std::sort(begin(events), end(events));
// When we selectively evaluate the auth_chain below we may need to feed
// the vm certain member events first to avoid complications; this
// subroutine will find them.
const auto find_member{[&events]
(const m::user::id &user_id)
{
const auto it(std::find_if(begin(events), end(events), [&user_id]
(const m::event &event)
{
return json::get<"type"_>(event) == "m.room.member" &&
json::get<"state_key"_>(event) == user_id;
}));
if(unlikely(it == end(events)))
throw m::NOT_FOUND
{
"No m.room.member event for %s found in auth chain.",
string_view{user_id}
};
return *it;
}};
for(const auto &event : events)
{
// Skip all events which aren't power events. We don't need them
// here yet. They can wait until state evaluation later.
if(json::get<"depth"_>(event) >= 4)
if(!m::event::auth::is_power_event(event))
continue;
if(!m::event::auth::is_power_event(event))
continue;
// Find the member event for the sender of this power event so the
// system is aware of their identity first; this isn't done for the
// create event because the vm expects that first regardless.
if(json::get<"type"_>(event) != "m.room.create")
{
const auto &member_event
{
find_member(at<"sender"_>(event))
};
m::vm::eval
{
member_event, opts
};
}
m::vm::eval
{