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defmodule Chessh.SSH.AuthTest do
use ExUnit.Case, async: false
alias(Chessh.{Player, Repo, Key, PlayerSession})
@localhost '127.0.0.1'
@localhost_inet {{127, 0, 0, 1}, 1}
@key_name "The Gamer Machine"
@valid_user %{username: "logan", password: "password"}
@client_test_keys_dir Path.join(Application.compile_env!(:chessh, :key_dir), "client_keys")
@client_pub_key 'id_ed25519.pub'
setup_all do
Ecto.Adapters.SQL.Sandbox.checkout(Repo)
Ecto.Adapters.SQL.Sandbox.mode(Repo, {:shared, self()})
{:ok, player} = Repo.insert(Player.registration_changeset(%Player{}, @valid_user))
{:ok, key_text} = File.read(Path.join(@client_test_keys_dir, @client_pub_key))
{:ok, _key} =
Repo.insert(
Key.changeset(%Key{}, %{key: key_text, name: @key_name})
|> Ecto.Changeset.put_assoc(:player, player)
)
:ok
end
def cleanup() do
Process.sleep(1_000)
PlayerSession.delete_all_on_node(System.fetch_env!("NODE_ID"))
# Wait for (what I believe to be the) DB Connection queue to clear?
Process.sleep(1_000)
end
def send_ssh_connection_to_pid(parent, auth_method) do
send(
parent,
{:attempted,
:ssh.connect(@localhost, Application.fetch_env!(:chessh, :port),
user: String.to_charlist(@valid_user.username),
password: String.to_charlist(@valid_user.password),
auth_methods: auth_method,
silently_accept_hosts: true,
user_dir: String.to_charlist(@client_test_keys_dir),
disconnectfun: fn _reason -> send(parent, {:disconnected, self()}) end
)}
)
end
test "Password attempts are rate limited" do
jail_attempt_threshold =
Application.get_env(:chessh, RateLimits)
|> Keyword.get(:jail_attempt_threshold)
assert :disconnect ==
Enum.reduce(
0..(jail_attempt_threshold + 1),
fn _, _ ->
Chessh.SSH.Daemon.pwd_authenticate(
@valid_user.username,
"wrong_password",
@localhost_inet
)
end
)
end
test "Player authentications are increased after a successful authentication" do
player_before = Repo.get_by(Player, username: @valid_user.username)
Chessh.SSH.Daemon.pwd_authenticate(
@valid_user.username,
@valid_user.password,
@localhost_inet
)
player_after = Repo.get_by(Player, username: @valid_user.username)
assert(player_after.authentications - player_before.authentications == 1)
end
test "INTEGRATION - Can ssh into daemon with password or public key" do
{:ok, sup} = Task.Supervisor.start_link()
test_pid = self()
Task.Supervisor.start_child(sup, fn ->
{:ok, conn} =
:ssh.connect(@localhost, Application.fetch_env!(:chessh, :port),
user: String.to_charlist(@valid_user.username),
password: String.to_charlist(@valid_user.password),
auth_methods: 'password',
silently_accept_hosts: true
)
:ssh.close(conn)
send(test_pid, :connected_via_password)
end)
assert_receive(:connected_via_password, 2_000)
Task.Supervisor.start_child(sup, fn ->
{:ok, conn} =
:ssh.connect(@localhost, Application.fetch_env!(:chessh, :port),
user: String.to_charlist(@valid_user.username),
auth_methods: 'publickey',
silently_accept_hosts: true,
user_dir: String.to_charlist(@client_test_keys_dir)
)
:ssh.close(conn)
send(test_pid, :connected_via_public_key)
end)
assert_receive(:connected_via_public_key, 2_000)
cleanup()
end
test "INTEGRATION - SSH Sessions are closed once player has more than specified concurrent sessions which are tracked by successful authentications and disconnections" do
max_concurrent_user_sessions =
Application.get_env(:chessh, RateLimits)
|> Keyword.get(:max_concurrent_user_sessions)
player = Repo.get_by(Player, username: @valid_user.username)
{:ok, sup} = Task.Supervisor.start_link()
test_pid = self()
Enum.reduce(0..(max_concurrent_user_sessions + 1), fn i, _ ->
Task.Supervisor.start_child(
sup,
fn ->
send_ssh_connection_to_pid(
test_pid,
if(rem(i, 2) == 0, do: 'publickey', else: 'password')
)
end
)
end)
conns =
Enum.map(1..max_concurrent_user_sessions, fn _ ->
assert_receive({:attempted, {:ok, conn}}, 2_000)
conn
end)
assert_receive({:disconnected, _conn}, 2_000)
# Give it time to send back the disconnection payload after session was opened
# but over threshold
:timer.sleep(100)
assert PlayerSession.concurrent_sessions(player) == max_concurrent_user_sessions
Enum.map(conns, fn conn -> :ssh.close(conn) end)
:timer.sleep(100)
assert PlayerSession.concurrent_sessions(player) == 0
cleanup()
end
end
|
