Added first files for admin and login/signup in admin

paramecio2/libraries/db/extrafields/urlfield.py

@@ -0,0 +1,42 @@
+from paramecio2.libraries.db.corefields import CharField
+import re
+
+check_url = re.compile(
+        r'^(?:http|ftp)s?://' # http:// or https://
+        r'(?:(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+(?:[A-Z]{2,6}\.?|[A-Z0-9-]{2,}\.?)|' #domain...
+        r'localhost|' #localhost...
+        r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})' # ...or ip
+        r'(?::\d+)?' # optional port
+        r'(?:/?|[/?]\S+)$', re.IGNORECASE)
+
+class UrlField(CharField):
+    
+    def check(self, value):
+        
+        self.error=False
+        self.txt_error=''
+        
+        if not check_url.match(value):
+            
+            self.error=True
+            value=""
+            self.txt_error='No valid URL format'
+            
+        return value
+        
+check_domain=re.compile('^(([a-zA-Z]{1})|([a-zA-Z]{1}[a-zA-Z]{1})|([a-zA-Z]{1}[0-9]{1})|([0-9]{1}[a-zA-Z]{1})|([a-zA-Z0-9][a-zA-Z0-9-_]{1,61}[a-zA-Z0-9]))\.([a-zA-Z]{2,6}|[a-zA-Z0-9-]{2,30}\.[a-zA-Z]{2,3})$')
+
+class DomainField(CharField):
+    
+    def check(self, value):
+        
+        self.error=False
+        self.txt_error=''
+        
+        if not check_domain.match(value):
+            
+            self.error=True
+            value=""
+            self.txt_error='No valid domain format'
+            
+        return value