def activate(token, rsa_pub_key, product_id, key, machine_code, fields_to_return = 0,\
metadata = False, floating_time_interval = 0,\
max_overdraft = 0, friendly_name = None):
"""
Calls the Activate method in Web API 3 and returns a tuple containing
(LicenseKey, Message). If an error occurs, LicenseKey will be None. If
everything went well, no message will be returned.
More docs: https://app.cryptolens.io/docs/api/v3/Activate
"""
response = Response("", "", 0, "")
try:
response = Response.from_string(HelperMethods.send_request("key/activate", {"token":token,\
"ProductId":product_id,\
"key":key,\
"MachineCode":machine_code,\
"FieldsToReturn":fields_to_return,\
"metadata":metadata,\
"FloatingTimeInterval": floating_time_interval,\
"MaxOverdraft": max_overdraft,\
"FriendlyName" : friendly_name,\
"ModelVersion": 3 ,\
"Sign":"True",\
"SignMethod":1}))
except HTTPError as e:
response = Response.from_string(e.read())
except URLError as e:
return (None,
"Could not contact the server. Error message: " + str(e))
except Exception:
return (None, "Could not contact the server.")
pubkey = RSAPublicKey.from_string(rsa_pub_key)
if response.result == 1:
return (None, response.message)
else:
try:
if HelperMethods.verify_signature(response, pubkey):
return (LicenseKey.from_response(response),
response.message)
else:
return (None, "The signature check failed.")
except Exception:
return (None, "The signature check failed.")
def load_from_string(rsa_pub_key,
string,
signature_expiration_interval=-1):
"""
Loads a license from a string generated by save_as_string.
Note: if an error occurs, None will be returned. An error can occur
if the license string has been tampered with or if the public key is
incorrectly formatted.
:param signature_expiration_interval: If the license key was signed,
this method will check so that no more than "signatureExpirationInterval"
days have passed since the last activation.
"""
response = Response("", "", "", "")
try:
response = Response.from_string(string)
except Exception as ex:
return None
if response.result == "1":
return None
else:
try:
pubKey = RSAPublicKey.from_string(rsa_pub_key)
if HelperMethods.verify_signature(response, pubKey):
licenseKey = LicenseKey.from_response(response)
if signature_expiration_interval > 0 and \
(licenseKey.sign_date + datetime.timedelta(days=1*signature_expiration_interval) < datetime.datetime.utcnow()):
return None
return licenseKey
else:
return None
except Exception:
return None
def get_key(token, rsa_pub_key, product_id, key, fields_to_return = 0,\
metadata = False, floating_time_interval = 0):
"""
Calls the GetKey method in Web API 3 and returns a tuple containing
(LicenseKey, Message). If an error occurs, LicenseKey will be None. If
everything went well, no message will be returned.
More docs: https://app.cryptolens.io/docs/api/v3/GetKey
"""
response = Response("","",0,"")
try:
response = Response.from_string(HelperMethods.send_request("key/getkey", {"token":token,\
"ProductId":product_id,\
"key":key,\
"FieldsToReturn":fields_to_return,\
"metadata":metadata,\
"FloatingTimeInterval": floating_time_interval,\
"Sign":"True",\
"SignMethod":1}))
except Exception:
return (None, "Could not contact the server.")
pubkey = RSAPublicKey.from_string(rsa_pub_key)
if response.result == 1:
return (None, response.message)
else:
try:
if HelperMethods.verify_signature(response, pubkey):
return (LicenseKey.from_response(response), response.message)
else:
return (None, "The signature check failed.")
except Exception:
return (None, "The signature check failed.")