Mark all static methods for python2 compatibility

Author: artemlos

licensing/internal.py

@@ -16,13 +16,14 @@ class HelperMethods:
 
     server_address = "https://app.cryptolens.io/api/"
 
+    @staticmethod
     def get_SHA256(string):
         """
         Compute the SHA256 signature of a string.
         """
         return hashlib.sha256(string.encode("utf-8")).hexdigest()
 
-    
+    @staticmethod
     def verify_signature(response, rsaPublicKey):       
         """
         Verifies a signature from .NET RSACryptoServiceProvider.
@@ -33,12 +34,15 @@ def verify_signature(response, rsaPublicKey):
         verifier = PKCS1_v1_5.new(cryptoPubKey)
         return verifier.verify(h, base64.b64decode(response.signature.encode("utf-8")))
 
+    @staticmethod
     def int2base64(num):
         return base64.b64encode(int.to_bytes(num), byteorder='big')
 
+    @staticmethod
     def base642int(string):
         return int.from_bytes(base64.b64decode((string)), byteorder='big')
 
+    @staticmethod
     def send_request(method, params):
         """
         Send a POST request to method in the Web API with the specified
@@ -51,7 +55,7 @@ def send_request(method, params):
                                       urllib.parse.urlencode(params)\
                                       .encode("utf-8")).read().decode("utf-8")
 
-        
+    @staticmethod 
     def start_process(command):
 
         process = Popen(command, stdout=PIPE)

licensing/methods.py

@@ -18,6 +18,7 @@ class Key:
     License key related methods. More docs: https://app.cryptolens.io/docs/api/v3/Key.
     """
 
+    @staticmethod
     def activate(token, rsa_pub_key, product_id, key, machine_code, fields_to_return = 0,\
                  metadata = False, floating_time_interval = 0,\
                  max_overdraft = 0):
@@ -58,7 +59,8 @@ def activate(token, rsa_pub_key, product_id, key, machine_code, fields_to_return
                     return (None, "The signature check failed.")
             except Exception:
                 return (None, "The signature check failed.")
-            
+         
+    @staticmethod
     def create_trial_key(token, product_id, machine_code):
         """
         Calls the CreateTrialKey method in Web API 3 and returns a tuple containing
@@ -87,7 +89,7 @@ def create_trial_key(token, product_id, machine_code):
 
         return (jobj["key"], "")
 
-    
+    @staticmethod
     def deactivate(token, product_id, key, machine_code, floating = False):
         """
         Calls the Deactivate method in Web API 3 and returns a tuple containing
@@ -122,6 +124,7 @@ def deactivate(token, product_id, key, machine_code, floating = False):
 
 class Helpers:
 
+    @staticmethod
     def GetMachineCode():
 
         """
@@ -138,6 +141,7 @@ def GetMachineCode():
         else:
             return HelperMethods.get_SHA256(HelperMethods.compute_machine_code())
 
+    @staticmethod
     def IsOnRightMachine(license_key, is_floating_license = False, allow_overdraft=False):
 
         """

licensing/models.py

@@ -54,6 +54,7 @@ def __init__(self, ProductId, ID, Key, Created, Expires, Period, F1, F2,\
         self.sign_date = SignDate
         self.raw_response = RawResponse
 
+    @staticmethod
     def from_response(response):
 
         if response.result == "1":
@@ -78,6 +79,7 @@ def save_as_string(self):
         res.pop("license_key", None)
         return json.dumps(res)
 
+    @staticmethod
     def load_from_string(rsa_pub_key, string, signature_expiration_interval = -1):
         """
         Loads a license from a string generated by save_as_string.
@@ -115,7 +117,8 @@ def load_from_string(rsa_pub_key, string, signature_expiration_interval = -1):
                     return None
             except Exception:
                 return None
-            
+      
+    @staticmethod
     def __load_activated_machines(obj):
 
         if obj == None:
@@ -136,6 +139,7 @@ def __init__(self, license_key, signature, result, message):
         self.result = result
         self.message = message
 
+    @staticmethod
     def from_string(responseString):        
         obj = json.loads(responseString)
 
@@ -166,6 +170,7 @@ def __init__(self, modulus, exponent):
         self.modulus = modulus
         self.exponent = exponent
 
+    @staticmethod
     def from_string(rsaPubKeyString):
         """
         The rsaPubKeyString can be found at https://app.cryptolens.io/User/Security.