architex/lib/matrix_server_web/client/authenticate_client_plug.ex

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defmodule MatrixServerWeb.Client.AuthenticateClientPlug do
import MatrixServerWeb.Error
import Plug.Conn
alias MatrixServer.Account
alias Plug.Conn
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def init(opts), do: opts
def call(%Conn{params: %{"access_token" => access_token}} = conn, _opts) do
authenticate(conn, access_token)
end
def call(%Conn{req_headers: headers} = conn, _opts) do
case List.keyfind(headers, "authorization", 0) do
{_, "Bearer " <> access_token} ->
authenticate(conn, access_token)
_ ->
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put_error(conn, :missing_token)
end
end
defp authenticate(conn, access_token) do
case Account.by_access_token(access_token) do
{account, device} ->
conn
|> assign(:account, account)
|> assign(:device, device)
nil ->
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put_error(conn, :unknown_token)
end
end
end