Add lib/proxy_log.py

lib/proxy_log.py

@@ -0,0 +1,45 @@
+"""
+Logger of proxy queries
+
+"""
+
+# pylint: disable=consider-using-with,too-few-public-methods
+
+import datetime
+
+class Logger:
+
+    """
+    Generic logger.
+    For specific loggers, _shorten_query() should be rewritten.
+    """
+
+    def __init__(self, filename):
+
+        self._filename = filename
+        self._file = open(filename, "a", encoding="utf-8")
+
+    def _shorten_query(self, query):
+        return query
+
+    def log(self, query, error):
+        """
+        Log `query` and `error`
+        """
+
+        message = str(datetime.datetime.now())
+        query = self._shorten_query(query)
+        if error != "":
+            message += " ERR " + query + " " + error
+        else:
+            message =  " OK  " + query
+
+        self._file.write(message+"\n")
+
+class LoggerWWO(Logger):
+    """
+    WWO logger.
+    """
+
+    def _shorten_query(self, query):
+        return "".join([x for x in query.split("&") if x.startswith("q=")])