From 222dc1fe35eef27d981316343e405bf19fd11d72 Mon Sep 17 00:00:00 2001
From: Florian Bach <Leseratte10@vodafone.de>
Date: Thu, 28 Apr 2022 16:32:43 +0200
Subject: [PATCH] Fix error when fulfillment server hostname doesn't resolve

---
 calibre-plugin/libadobe.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/calibre-plugin/libadobe.py b/calibre-plugin/libadobe.py
index 0e5dc39..7ec439a 100644
--- a/calibre-plugin/libadobe.py
+++ b/calibre-plugin/libadobe.py
@@ -326,6 +326,10 @@ def sendPOSTHTTPRequest(URL, document, type, returnRC = False):
         # This happens with HTTP 500 and related errors.
         print("Post request caused HTTPError %d" % (err.code))
         return err.code, "Post request caused HTTPException"
+    except uliberror.URLError as err: 
+        # This happens if the hostname cannot be resolved.
+        print("Post request failed with URLError")
+        return 900, "Post request failed with URLError"
 
 
     ret_code = handler.getcode()