Merge pull request #3 from tuxis-ie/implement-usage-call

Implement usage query, including buildtest

Author: uroni

test/urbackup_api_test.py

@@ -16,6 +16,10 @@
 
 
 clients = server.get_status()
+usage = server.get_usage()
+
+if len(clients) != len(usage):
+    print("Failed to retreive usage or status information. Length of both lists is different.")
 
 # Uncomment to format time differently
 # locale.setlocale(locale.LC_TIME, "german")
@@ -62,4 +66,4 @@
 if server.set_global_setting("max_image_incr", "40"):
     print("Changed global setting successfully")
 else:
-    print("Failed to change global setting")
+    print("Failed to change global setting")

urbackup_api/__init__.py

@@ -339,6 +339,20 @@ def get_status(self):
 
         return status["status"]
 
+    def get_usage(self):
+        if not self.login():
+            return None
+
+        usage = self._get_json("usage")
+
+        if not usage:
+            return None
+
+        if not "usage" in usage:
+            return None
+
+        return usage["usage"]
+
     def get_extra_clients(self):
         if not self.login():
             return None