Simplify several functions

wo/core/acme.py

@@ -112,6 +112,7 @@ class WOAcme:
             Log.debug(self, str(e))
             Log.debug(self, "Error occured while generating "
                       "ssl.conf")
+        return 0
 
     def check_dns(self, acme_domains):
         """Check if a list of domains point to the server IP"""

wo/core/domainvalidate.py

@@ -5,7 +5,7 @@ import os
 class WODomain():
     """WordOps domain validation utilities"""
 
-    def validatedomain(self, url):
+    def validate(self, url):
         """
             This function returns domain name removing http:// and https://
             returns domain name only with or without www as user provided.
@@ -26,7 +26,7 @@ class WODomain():
 
         return (final_domain, domain_name)
 
-    def getdomainlevel(self, domain):
+    def getlevel(self, domain):
         """
             Returns the domain type : domain, subdomain and the root domain
         """

wo/core/random.py

@@ -3,15 +3,10 @@ import string
 
 
 class RANDOM:
+    """Random strings generator"""
 
-    def short(self):
+    def gen(self, length='24'):
         short_random = ''.join([random.choice
                                 (string.ascii_letters + string.digits)
-                                for n in range(8)])
+                                for n in range(length)])
         return short_random
-
-    def long(self):
-        long_random = ''.join([random.choice
-                                (string.ascii_letters + string.digits)
-                                for n in range(24)])
-        return long_random