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modules/m_room_aliases: Add cache TTL conf item and conditions.

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This commit is contained in:
Jason Volk 2019-03-30 17:16:15 -07:00
parent 8063904c06
commit cd5b93ec27
1 changed files with 123 additions and 4 deletions
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127
modules/m_room_aliases.cc
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@ -28,6 +28,13 @@ alias_room
alias_room_id
};
conf::item<seconds>
alias_cache_ttl
{
{ "name", "ircd.m.room.aliases.cache.ttl" },
{ "default", 604800L },
};
//
// m::room::aliases
//
@ -152,10 +159,17 @@ ircd::m::room::aliases::cache::get(std::nothrow_t,
alias_room.get("ircd.room.alias", key)
};
if(!event_idx)
return false;
bool ret{false};
if(!event_idx)
return ret;
time_t ts;
if(!m::get(event_idx, "origin_server_ts", ts))
return ret;
if(ircd::time() - ts > seconds(alias_cache_ttl).count())
return ret;
m::get(std::nothrow, event_idx, "content", [&closure, &ret]
(const json::object &content)
{
@ -174,6 +188,77 @@ ircd::m::room::aliases::cache::get(std::nothrow_t,
return ret;
}
namespace ircd::m
{
thread_local char room_aliases_cache_fetch_hpbuf[384];
}
void
IRCD_MODULE_EXPORT
ircd::m::room::aliases::cache::fetch(const alias &alias,
const net::hostport &hp)
try
{
const unique_buffer<mutable_buffer> buf
{
16_KiB
};
m::v1::query::opts opts;
opts.remote = hp;
m::v1::query::directory request
{
alias, buf, std::move(opts)
};
request.wait(seconds(alias_fetch_timeout));
const http::code &code
{
request.get()
};
const json::object &response
{
request
};
if(!response.has("room_id"))
throw m::NOT_FOUND
{
"Server '%s' does not know room_id for %s",
string(room_aliases_cache_fetch_hpbuf, hp),
string_view{alias},
};
const m::room::id &room_id
{
unquote(response["room_id"])
};
set(alias, room_id);
}
catch(const ctx::timeout &e)
{
throw m::error
{
http::GATEWAY_TIMEOUT, "M_ROOM_ALIAS_TIMEOUT",
"Server '%s' did not respond with a room_id for %s in time",
string(room_aliases_cache_fetch_hpbuf, hp),
string_view{alias},
};
}
catch(const server::unavailable &e)
{
throw m::error
{
http::BAD_GATEWAY, "M_ROOM_ALIAS_UNAVAILABLE",
"Server '%s' is not available to query a room_id for %s",
string(room_aliases_cache_fetch_hpbuf, hp),
string_view{alias},
};
}
bool
IRCD_MODULE_EXPORT
ircd::m::room::aliases::cache::has(const alias &alias)
@ -184,7 +269,34 @@ ircd::m::room::aliases::cache::has(const alias &alias)
alias.swap(swapbuf)
};
return alias_room.has("ircd.room.alias", key);
const auto &event_idx
{
alias_room.get("ircd.room.alias", key)
};
if(!event_idx)
return false;
time_t ts;
if(!m::get(event_idx, "origin_server_ts", ts))
return false;
if(ircd::time() - ts > seconds(alias_cache_ttl).count())
return false;
bool ret{false};
m::get(std::nothrow, event_idx, "content", [&ret]
(const json::object &content)
{
const json::string &room_id
{
content.get("room_id")
};
ret = !empty(room_id);
});
return ret;
}
bool
@ -210,6 +322,13 @@ ircd::m::room::aliases::cache::for_each(const string_view &server,
if(server && alias.host() != server)
return false;
time_t ts;
if(!m::get(event_idx, "origin_server_ts", ts))
return true;
if(ircd::time() - ts > seconds(alias_cache_ttl).count())
return true;
m::get(std::nothrow, event_idx, "content", [&closure, &ret, &alias]
(const json::object &content)
{