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|
import base64
import json
from datetime import datetime, timedelta
import pytest
from jose import jws, jwt
from jose.exceptions import JWTError
@pytest.fixture
def claims():
claims = {"a": "b"}
return claims
@pytest.fixture
def key():
return "secret"
@pytest.fixture
def headers():
headers = {
"kid": "my-key-id",
}
return headers
class TestJWT:
def test_no_alg(self, claims, key):
token = jwt.encode(claims, key, algorithm="HS384")
b64header, b64payload, b64signature = token.split(".")
header_json = base64.urlsafe_b64decode(b64header.encode("utf-8"))
header = json.loads(header_json.decode("utf-8"))
del header["alg"]
bad_header_json_bytes = json.dumps(header).encode("utf-8")
bad_b64header_bytes = base64.urlsafe_b64encode(bad_header_json_bytes)
bad_b64header_bytes_short = bad_b64header_bytes.replace(b"=", b"")
bad_b64header = bad_b64header_bytes.decode("utf-8")
bad_token = ".".join([bad_b64header, b64payload, b64signature])
with pytest.raises(JWTError):
jwt.decode(token=bad_token, key=key, algorithms=[])
@pytest.mark.parametrize(
"key, token",
[
(
"1234567890",
"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJuYW1lIjoidGVzdCJ9.aNBlulVhiYSCzvsh1rTzXZC2eWJmNrMBjINT-0wQz4k",
),
(
"123456789.0",
"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJuYW1lIjoidGVzdCJ9.D8WLFPMi3yKgua2jm3BKThFsParXpgxhIbsUc39zJDw",
),
],
)
def test_numeric_key(self, key, token):
token_info = jwt.decode(token, key)
assert token_info == {"name": "test"}
def test_invalid_claims_json(self):
old_jws_verify = jws.verify
try:
token = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhIjoiYiJ9.jiMyrsmD8AoHWeQgmxZ5yq8z0lXS67_QGs52AzC8Ru8"
def return_invalid_json(token, key, algorithms, verify=True):
return b'["a", "b"}'
jws.verify = return_invalid_json
with pytest.raises(JWTError, match="Invalid payload string: "):
jwt.decode(token, "secret", ["HS256"])
finally:
jws.verify = old_jws_verify
def test_invalid_claims(self):
old_jws_verify = jws.verify
try:
token = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhIjoiYiJ9.jiMyrsmD8AoHWeQgmxZ5yq8z0lXS67_QGs52AzC8Ru8"
def return_encoded_array(token, key, algorithms, verify=True):
return b'["a","b"]'
jws.verify = return_encoded_array
with pytest.raises(JWTError, match="Invalid payload string: must be a json object"):
jwt.decode(token, "secret", ["HS256"])
finally:
jws.verify = old_jws_verify
def test_non_default_alg(self, claims, key):
encoded = jwt.encode(claims, key, algorithm="HS384")
decoded = jwt.decode(encoded, key, algorithms="HS384")
assert claims == decoded
def test_non_default_alg_positional_bwcompat(self, claims, key):
encoded = jwt.encode(claims, key, "HS384")
decoded = jwt.decode(encoded, key, "HS384")
assert claims == decoded
def test_no_alg_default_headers(self, claims, key, headers):
token = jwt.encode(claims, key, algorithm="HS384")
b64header, b64payload, b64signature = token.split(".")
bad_token = b64header + "." + b64payload
with pytest.raises(JWTError):
jwt.get_unverified_headers(bad_token)
def test_non_default_headers(self, claims, key, headers):
encoded = jwt.encode(claims, key, headers=headers)
decoded = jwt.decode(encoded, key)
assert claims == decoded
all_headers = jwt.get_unverified_headers(encoded)
for k, v in headers.items():
assert all_headers[k] == v
def test_deterministic_headers(self):
from collections import OrderedDict
from jose.utils import base64url_decode
claims = {"a": "b"}
key = "secret"
headers1 = OrderedDict(
(
("kid", "my-key-id"),
("another_key", "another_value"),
)
)
encoded1 = jwt.encode(claims, key, algorithm="HS256", headers=headers1)
encoded_headers1 = encoded1.split(".", 1)[0]
headers2 = OrderedDict(
(
("another_key", "another_value"),
("kid", "my-key-id"),
)
)
encoded2 = jwt.encode(claims, key, algorithm="HS256", headers=headers2)
encoded_headers2 = encoded2.split(".", 1)[0]
assert encoded_headers1 == encoded_headers2
# manually decode header to compare it to known good
decoded_headers1 = base64url_decode(encoded_headers1.encode("utf-8"))
assert decoded_headers1 == b"""{"alg":"HS256","another_key":"another_value","kid":"my-key-id","typ":"JWT"}"""
def test_encode(self, claims, key):
expected = (
("eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9" ".eyJhIjoiYiJ9" ".xNtk2S0CNbCBZX_f67pFgGRugaP1xi2ICfet3nwOSxw"),
("eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9" ".eyJhIjoiYiJ9" ".jiMyrsmD8AoHWeQgmxZ5yq8z0lXS67_QGs52AzC8Ru8"),
)
encoded = jwt.encode(claims, key)
assert encoded in expected
def test_decode(self, claims, key):
token = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9" ".eyJhIjoiYiJ9" ".jiMyrsmD8AoHWeQgmxZ5yq8z0lXS67_QGs52AzC8Ru8"
decoded = jwt.decode(token, key)
assert decoded == claims
@pytest.mark.parametrize(
"key",
[
b"key",
"key",
],
)
def test_round_trip_with_different_key_types(self, key):
token = jwt.encode({"testkey": "testvalue"}, key, algorithm="HS256")
verified_data = jwt.decode(token, key, algorithms=["HS256"])
assert "testkey" in verified_data.keys()
assert verified_data["testkey"] == "testvalue"
def test_leeway_is_int(self):
pass
def test_leeway_is_timedelta(self, claims, key):
nbf = datetime.utcnow() + timedelta(seconds=5)
leeway = timedelta(seconds=10)
claims = {
"nbf": nbf,
}
options = {"leeway": leeway}
token = jwt.encode(claims, key)
jwt.decode(token, key, options=options)
def test_iat_not_int(self, key):
claims = {"iat": "test"}
token = jwt.encode(claims, key)
with pytest.raises(JWTError):
jwt.decode(token, key)
def test_nbf_not_int(self, key):
claims = {"nbf": "test"}
token = jwt.encode(claims, key)
with pytest.raises(JWTError):
jwt.decode(token, key)
def test_nbf_datetime(self, key):
nbf = datetime.utcnow() - timedelta(seconds=5)
claims = {"nbf": nbf}
token = jwt.encode(claims, key)
jwt.decode(token, key)
def test_nbf_with_leeway(self, key):
nbf = datetime.utcnow() + timedelta(seconds=5)
claims = {
"nbf": nbf,
}
options = {"leeway": 10}
token = jwt.encode(claims, key)
jwt.decode(token, key, options=options)
def test_nbf_in_future(self, key):
nbf = datetime.utcnow() + timedelta(seconds=5)
claims = {"nbf": nbf}
token = jwt.encode(claims, key)
with pytest.raises(JWTError):
jwt.decode(token, key)
def test_nbf_skip(self, key):
nbf = datetime.utcnow() + timedelta(seconds=5)
claims = {"nbf": nbf}
token = jwt.encode(claims, key)
with pytest.raises(JWTError):
jwt.decode(token, key)
options = {"verify_nbf": False}
jwt.decode(token, key, options=options)
def test_exp_not_int(self, key):
claims = {"exp": "test"}
token = jwt.encode(claims, key)
with pytest.raises(JWTError):
jwt.decode(token, key)
def test_exp_datetime(self, key):
exp = datetime.utcnow() + timedelta(seconds=5)
claims = {"exp": exp}
token = jwt.encode(claims, key)
jwt.decode(token, key)
def test_exp_with_leeway(self, key):
exp = datetime.utcnow() - timedelta(seconds=5)
claims = {
"exp": exp,
}
options = {"leeway": 10}
token = jwt.encode(claims, key)
jwt.decode(token, key, options=options)
def test_exp_in_past(self, key):
exp = datetime.utcnow() - timedelta(seconds=5)
claims = {"exp": exp}
token = jwt.encode(claims, key)
with pytest.raises(JWTError):
jwt.decode(token, key)
def test_exp_skip(self, key):
exp = datetime.utcnow() - timedelta(seconds=5)
claims = {"exp": exp}
token = jwt.encode(claims, key)
with pytest.raises(JWTError):
jwt.decode(token, key)
options = {"verify_exp": False}
jwt.decode(token, key, options=options)
def test_aud_string(self, key):
aud = "audience"
claims = {"aud": aud}
token = jwt.encode(claims, key)
jwt.decode(token, key, audience=aud)
def test_aud_list(self, key):
aud = "audience"
claims = {"aud": [aud]}
token = jwt.encode(claims, key)
jwt.decode(token, key, audience=aud)
def test_aud_list_multiple(self, key):
aud = "audience"
claims = {"aud": [aud, "another"]}
token = jwt.encode(claims, key)
jwt.decode(token, key, audience=aud)
def test_aud_list_is_strings(self, key):
aud = "audience"
claims = {"aud": [aud, 1]}
token = jwt.encode(claims, key)
with pytest.raises(JWTError):
jwt.decode(token, key, audience=aud)
def test_aud_case_sensitive(self, key):
aud = "audience"
claims = {"aud": [aud]}
token = jwt.encode(claims, key)
with pytest.raises(JWTError):
jwt.decode(token, key, audience="AUDIENCE")
def test_aud_empty_claim(self, claims, key):
aud = "audience"
token = jwt.encode(claims, key)
jwt.decode(token, key, audience=aud)
def test_aud_not_string_or_list(self, key):
aud = 1
claims = {"aud": aud}
token = jwt.encode(claims, key)
with pytest.raises(JWTError):
jwt.decode(token, key)
def test_aud_given_number(self, key):
aud = "audience"
claims = {"aud": aud}
token = jwt.encode(claims, key)
with pytest.raises(JWTError):
jwt.decode(token, key, audience=1)
def test_iss_string(self, key):
iss = "issuer"
claims = {"iss": iss}
token = jwt.encode(claims, key)
jwt.decode(token, key, issuer=iss)
def test_iss_list(self, key):
iss = "issuer"
claims = {"iss": iss}
token = jwt.encode(claims, key)
jwt.decode(token, key, issuer=["https://issuer", "issuer"])
def test_iss_tuple(self, key):
iss = "issuer"
claims = {"iss": iss}
token = jwt.encode(claims, key)
jwt.decode(token, key, issuer=("https://issuer", "issuer"))
def test_iss_invalid(self, key):
iss = "issuer"
claims = {"iss": iss}
token = jwt.encode(claims, key)
with pytest.raises(JWTError):
jwt.decode(token, key, issuer="another")
def test_sub_string(self, key):
sub = "subject"
claims = {"sub": sub}
token = jwt.encode(claims, key)
jwt.decode(token, key)
def test_sub_invalid(self, key):
sub = 1
claims = {"sub": sub}
token = jwt.encode(claims, key)
with pytest.raises(JWTError):
jwt.decode(token, key)
def test_sub_correct(self, key):
sub = "subject"
claims = {"sub": sub}
token = jwt.encode(claims, key)
jwt.decode(token, key, subject=sub)
def test_sub_incorrect(self, key):
sub = "subject"
claims = {"sub": sub}
token = jwt.encode(claims, key)
with pytest.raises(JWTError):
jwt.decode(token, key, subject="another")
def test_jti_string(self, key):
jti = "JWT ID"
claims = {"jti": jti}
token = jwt.encode(claims, key)
jwt.decode(token, key)
def test_jti_invalid(self, key):
jti = 1
claims = {"jti": jti}
token = jwt.encode(claims, key)
with pytest.raises(JWTError):
jwt.decode(token, key)
def test_at_hash(self, claims, key):
access_token = "<ACCESS_TOKEN>"
token = jwt.encode(claims, key, access_token=access_token)
payload = jwt.decode(token, key, access_token=access_token)
assert "at_hash" in payload
def test_at_hash_invalid(self, claims, key):
token = jwt.encode(claims, key, access_token="<ACCESS_TOKEN>")
with pytest.raises(JWTError):
jwt.decode(token, key, access_token="<OTHER_TOKEN>")
def test_at_hash_missing_access_token(self, claims, key):
token = jwt.encode(claims, key, access_token="<ACCESS_TOKEN>")
with pytest.raises(JWTError):
jwt.decode(token, key)
def test_at_hash_missing_claim(self, claims, key):
token = jwt.encode(claims, key)
payload = jwt.decode(token, key, access_token="<ACCESS_TOKEN>")
assert "at_hash" not in payload
def test_at_hash_unable_to_calculate(self, claims, key):
token = jwt.encode(claims, key, access_token="<ACCESS_TOKEN>")
with pytest.raises(JWTError):
jwt.decode(token, key, access_token="\xe2")
def test_bad_claims(self):
bad_token = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.iOJ5SiNfaNO_pa2J4Umtb3b3zmk5C18-mhTCVNsjnck"
with pytest.raises(JWTError):
jwt.get_unverified_claims(bad_token)
def test_unverified_claims_string(self):
token = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.aW52YWxpZCBjbGFpbQ.iOJ5SiNfaNO_pa2J4Umtb3b3zmk5C18-mhTCVNsjnck"
with pytest.raises(JWTError):
jwt.get_unverified_claims(token)
def test_unverified_claims_list(self):
token = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.WyJpbnZhbGlkIiwgImNsYWltcyJd.nZvw_Rt1FfUPb5OiVbrSYZGtWSE5c-gdJ6nQnTTBkYo"
with pytest.raises(JWTError):
jwt.get_unverified_claims(token)
def test_unverified_claims_object(self, claims, key):
token = jwt.encode(claims, key)
assert jwt.get_unverified_claims(token) == claims
@pytest.mark.parametrize(
"claim,value",
[
("aud", "aud"),
("ait", "ait"),
("exp", datetime.utcnow() + timedelta(seconds=3600)),
("nbf", datetime.utcnow() - timedelta(seconds=5)),
("iss", "iss"),
("sub", "sub"),
("jti", "jti"),
],
)
def test_require(self, claims, key, claim, value):
options = {"require_" + claim: True, "verify_" + claim: False}
token = jwt.encode(claims, key)
with pytest.raises(JWTError):
jwt.decode(token, key, options=options, audience=str(value))
new_claims = dict(claims)
new_claims[claim] = value
token = jwt.encode(new_claims, key)
jwt.decode(token, key, options=options, audience=str(value))
|
