author | Kim Alvefur <zash@zash.se> |
Wed, 03 Mar 2021 11:43:38 +0100 | |
changeset 4494 | cf2bdb2aaa57 |
parent 2960 | d0ca211e1b0e |
permissions | -rw-r--r-- |
2960
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New HMAC token authentication module for Prosody.
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1 |
local base64 = require "util.encodings".base64; |
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local hmac = require "openssl.hmac"; |
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local luatz = require "luatz"; |
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local luaunit = require "luaunit"; |
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local uuid = require "uuid"; |
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local otp = require "otp"; |
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local mock = require "mock"; |
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local pkey = require "openssl.pkey"; |
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local token_utils = dofile("token_auth_utils.lib.lua"); |
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math.randomseed(os.time()) |
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local OTP_SEED = 'E3W374VRSFO4NVKE'; |
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function generate_token(jid, key) |
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local nonce = ''; |
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for i=1,32 do |
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nonce = nonce..math.random(9); |
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end |
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local utc_time_table = luatz.gmtime(luatz.time()); |
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local totp = otp.new_totp_from_key( |
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OTP_SEED, |
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token_utils.OTP_DIGITS, |
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token_utils.OTP_INTERVAL |
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):generate(0, utc_time_table); |
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local hmac_ctx = hmac.new(key, token_utils.DIGEST_TYPE) |
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local signature = hmac_ctx:final(totp..nonce..jid) |
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return totp..nonce..' '..base64.encode(signature) |
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end |
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function test_token_verification() |
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-- Test verification of a valid token |
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local key = uuid(); |
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local result = token_utils.verify_token( |
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'root', |
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generate_token('root@localhost', key), |
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'localhost', |
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OTP_SEED, |
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key |
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) |
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luaunit.assert_is(result, true) |
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end |
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function test_token_is_valid_only_once() |
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local key = uuid(); |
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local token = generate_token('root@localhost', key); |
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local result = token_utils.verify_token( |
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'root', |
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token, |
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'localhost', |
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OTP_SEED, |
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key |
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) |
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luaunit.assert_is(result, true) |
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result = token_utils.verify_token( |
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'root', |
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token, |
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'localhost', |
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OTP_SEED, |
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key |
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) |
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luaunit.assert_is(result, false) |
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end |
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function test_token_expiration() |
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-- Test that a token expires after (at most) the configured interval plus |
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-- any amount of deviations. |
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local key = uuid(); |
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local token = generate_token('root@localhost', key); |
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-- Wait two ticks of the interval window and then check that the token is |
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-- no longer valid. |
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mock.mock(os); |
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os.time.replace(function () |
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return os.time.original() + |
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(token_utils.OTP_INTERVAL + |
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(token_utils.OTP_DEVIATION * token_utils.OTP_INTERVAL)); |
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end) |
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result = token_utils.verify_token( |
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'root', |
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token, |
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'localhost', |
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OTP_SEED, |
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key |
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) |
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mock.unmock(os); |
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luaunit.assert_is(result, false) |
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end |
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os.exit(luaunit.LuaUnit.run()) |