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Add test case that exercises pyOpenSSL lib calls #10

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Dec 28, 2016
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Add test case that exercises pyOpenSSL lib calls #10

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18 changes: 16 additions & 2 deletions tests/test_util.py
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Original file line number Diff line number Diff line change
Expand Up @@ -69,8 +69,8 @@ class TestReprompt:
'''alexandra.util.reprompt'''

def test_reprompt_sanity(self):
assert util.reprompt(text='foo') == util.respond(reprompt_text='foo', end_session=False)
assert util.reprompt(ssml='foo') == util.respond(reprompt_ssml='foo', end_session=False)
assert util.reprompt(text='foo') == util.respond(reprompt_text='foo', end_session=False) # noqa
assert util.reprompt(ssml='foo') == util.respond(reprompt_ssml='foo', end_session=False) # noqa


class TestValidateTimestamp:
Expand Down Expand Up @@ -166,3 +166,17 @@ def test_good_url_expired_cert(self):
for case in cases:
assert util._get_certificate(case) is None
assert self.last_log() == 'certificate expired or invalid\n'

def test_request_validation(self):
cert_url = 'https://s3.amazonaws.com/echo.api/echo-api-cert-4.pem'
sig = 'biCfiVPY/AfFHPLz3s6msyoSWewJzQo0jZxsrSelEvVw1RlZ9ehxoREB/iUK+PD2rzO+z1SdP3RlOabMf6eHCvkG1G3SJY13Q00lVbmabJVOcNGObvxuWHD0oUtdfPKSzcUok2cEiAiMtI+OkXNoCkji4kxHPx1+nvfPhNhoakALCLqEYNYTm3ifNt5WbfYe8TC+5U86+U8Bv/Xl5jaUDT9CzCjR0KEqI1Sw1tWrTGZt857Zzx0ZkF3jdD8Ljdet2d64pzkyX+Ig/91PQQt4VEvfbGcjDc32Ic3RjMTCW5amd22Bs0uWLdzn8luOh6wg2WvVbE2ME8FsvUVCEtCCSQ=='
headers = {'SignatureCertChainUrl': cert_url, 'Signature': sig}

# Valid data
data = b'{"version":"1.0","session":{"new":true,"sessionId":"SessionId.a5a7c87a-4274-45bc-ac16-fb1bc02b93e4","application":{"applicationId":"amzn1.ask.skill.d4ed8492-e5ca-47f7-86d2-103d6a918c00"},"attributes":{},"user":{"userId":"amzn1.ask.account.AHVZCEBJIIIE32N24P522JWAJBM4W2CWOZVP5R74WC6LBMHQG4NPDV4CXCHV5FONOGH3WMOUYN7QWB5BIEYR26RT3VBZIRWF77ZEQZT2E23CSAYHCFWYH4NUSD7R522J2C6TCWOEFSHXTHTN3J77Z5KNEC4IHNXBJZGZELWKI5YR4KIDEXQZDOTLTK4WDREGVGVAQK73734BCYA"}},"request":{"type":"LaunchRequest","requestId":"EdwRequestId.5399ce92-0424-4dd4-b434-40213b4cd2c9","timestamp":"2016-12-28T05:59:13Z","locale":"en-US"}}'
assert util.validate_request_certificate(headers, data) is True

# Invalid data (timestamp altered by 1 second)
data = b'{"version":"1.0","session":{"new":true,"sessionId":"SessionId.a5a7c87a-4274-45bc-ac16-fb1bc02b93e4","application":{"applicationId":"amzn1.ask.skill.d4ed8492-e5ca-47f7-86d2-103d6a918c00"},"attributes":{},"user":{"userId":"amzn1.ask.account.AHVZCEBJIIIE32N24P522JWAJBM4W2CWOZVP5R74WC6LBMHQG4NPDV4CXCHV5FONOGH3WMOUYN7QWB5BIEYR26RT3VBZIRWF77ZEQZT2E23CSAYHCFWYH4NUSD7R522J2C6TCWOEFSHXTHTN3J77Z5KNEC4IHNXBJZGZELWKI5YR4KIDEXQZDOTLTK4WDREGVGVAQK73734BCYA"}},"request":{"type":"LaunchRequest","requestId":"EdwRequestId.5399ce92-0424-4dd4-b434-40213b4cd2c9","timestamp":"2016-12-28T05:59:14Z","locale":"en-US"}}'
assert util.validate_request_certificate(headers, data) is False
assert self.last_log() == 'invalid request signature\n'