User-Agent:       Opera/9.80 (X11; Linux i686; U; en) Presto/2.9.168 Version/11.52
Build Identifier: Orage 4.8.1

Foreign files feature works for me just fine when I have the 'Read only' option ticked on, if the external .ics have read-write filesystem permissions. However, keeping everything else same, when the filesystem permissions of the external .ics files are changed to read-only (via chmod -W), the events of the external files are not being loaded into the orage calendar.

Reproducible: Always

Steps to Reproduce:
1. Have an external .ics file as read-only using the chmod -w command.
2. Add that external .ics file in the 'Exchange Data' window, keeping the orage option 'Read only' turned on.
3. The events of that .ics file wouldn't show up in Orage.
Actual Results:  
Orage was unable to import the events from the read-only external .ics files.

Expected Results:  
Given that I had the option 'Read only' ticked on in the orage 'Exchange Data' window, I was under the impression that the filesystem level permissions should not matter at all. Hence, I expected the foreign files feature to work irrespective of the external file having read-write or read-only permissions.

I was just being extra cautious with my .ics files. If you guys can confirm that with the Orage option 'Read only' turned on, Orage wouldn't touch the external .ics files, then I guess this bug wouldn't be that high priority.