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don't bump ratelimit after unsuccessful attempts

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byte[] 2020-09-14 20:52:02 -04:00
parent aefc79eb8e
commit 6a045ce88e
1 changed files with 16 additions and 5 deletions
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21
lib/philomena_web/plugs/limit_plug.ex
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@ -31,12 +31,9 @@ defmodule PhilomenaWeb.LimitPlug do
]
key = "rl-#{Enum.join(data, "")}"
amt = Redix.command!(:redix, ["GET", key]) || 0
[amt, _] =
Redix.pipeline!(:redix, [
["INCR", key],
["EXPIRE", key, time]
])
conn = increment_after_post(conn, key, time)
cond do
amt <= limit ->
@ -86,4 +83,18 @@ defmodule PhilomenaWeb.LimitPlug do
_ -> false
end
end
defp increment_after_post(conn, key, time) do
Conn.register_before_send(conn, fn conn ->
# Phoenix status returns 200 for form validation errors
if conn.status != 200 do
Redix.pipeline!(:redix, [
["INCR", key],
["EXPIRE", key, time]
])
end
conn
end)
end
end