alphaplan_fwr_import: add error handling

scripts/alphaplan_fwr_import.py

@@ -9,12 +9,21 @@ import requests
 
 def ap_send_json(jsonobj: dict, url: str, user: str, password: str, cert_file: str):
     """Sends the generated files to the Alphaplan webservice"""
-    msg = requests.post(
-        url, json=jsonobj, auth=(user, password), verify=cert_file, timeout=10
-    )
-    msg_json = msg.json()
+    try:
+        msg = requests.post(
+            url, json=jsonobj, auth=(user, password), verify=cert_file, timeout=10
+        )
+    except requests.exceptions.RequestException as e:
+        sys.exit("ERROR: %s" % e)
+
+    try:
+        msg_json = msg.json()
+    except json.decoder.JSONDecodeError:
+        sys.exit("ERROR: Did not receive a valid JSON reply from Alphaplan webservice")
+
     if msg_json["Status"] != "Ok":
         sys.exit("ERROR: AlphaPlan webservice post request failed")
+
     print("AlphaPlan webservice response: {}".format(msg_json["Meldung"]))
 
 
@@ -62,8 +71,13 @@ def main():
     for filename in files:
         print("Importing JSON file %s" % filename)
         with open(filename, "r", encoding="utf-8") as f:
+            try:
+                json_data = json.load(f)
+            except json.decoder.JSONDecodeError:
+                sys.exit("ERROR: Could not parse JSON data from %f" % filename)
+
             ap_send_json(
-                json.load(f),
+                json_data,
                 args.url,
                 args.user,
                 args.password,