+begin check

README.md

@@ -5,3 +5,12 @@ ungleich register --name your-user-name --email your@email
 
 ungleich play-game --game register --ip
 ungleich play-game --game dns-forward --ip
+
+## Documentation
+
+- Rais CheckExc
+
+## TODOs
+
+- last result: select checkname where result = true
+- last success: select checkname where result = true

check.py

@@ -0,0 +1,45 @@
+
+class CheckException(Exception):
+    pass
+
+class WrongParameterException(CheckException):
+    pass
+
+class BaseCheck(object):
+
+    def check(self):
+        """ Should return tuple:
+        (true/false, data)
+
+        data is the raw result and can be saved in a database
+        """
+        pass
+
+
+class DNSCheck(BaseCheck):
+    def __init__(self, name, rr_type="AAAA", server=None):
+
+        self.rr_types = [ "AAAA", "A", "PTR", "TXT" ]
+        self.name = name
+        self.rr_type = rr_type
+        self.server = server
+
+        if not self.rr_type in self.rr_types:
+            raise WrongParameterException("Unsupported rr_type: {}".format(self.rr_type))
+
+
+    def rr_type_to_command(self):
+        base_cmd="dig +short"
+
+        if self.rr_type == "AAAA":
+            command = "{} {} aaaa".format(base_cmd, self.name)
+        elif self.rr_type == "A":
+            command = "{} {} a".format(base_cmd, self.name)
+        elif self.rr_type == "PTR":
+            command = "-x {}".format(base_cmd, self.name)
+        elif self.rr_type == "TXT":
+            command = "{} {} aaaa".format(base_cmd, self.name)
+
+
+
+    def check(self):