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Log missing kid when ID token verification fails #190

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Log missing kid when ID token verification fails #190

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5 changes: 4 additions & 1 deletion lib/omniauth/strategies/openid_connect.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -317,7 +317,10 @@ def decode_id_token(id_token)
# done. However, if there is no kid, then we try each key
# individually to see if one works:
# https://github.com/nov/json-jwt/pull/92#issuecomment-824654949
raise if decoded&.header&.key?('kid')
if decoded&.header&.key?('kid')
kid = decoded.header['kid']
raise JSON::JWK::Set::KidNotFound, "kid '#{kid}' not found"
end

decoded = decode_with_each_key!(id_token, keyset)

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4 changes: 3 additions & 1 deletion test/lib/omniauth/strategies/openid_connect_test.rb
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Expand Up @@ -338,9 +338,11 @@ def test_callback_phase_with_id_token_with_kid_and_no_matching_kid
strategy.unstub(:user_info)
strategy.call!('rack.session' => { 'omniauth.state' => state, 'omniauth.nonce' => nonce })

assert_raises JSON::JWK::Set::KidNotFound do
error = assert_raises JSON::JWK::Set::KidNotFound do
strategy.callback_phase
end

assert_match %r{kid '.*' not found}, error.message
end

def test_callback_phase_with_id_token_with_hs256
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