Fix to run libreoffice convert in the server side.

views/lists/index.odt

@@ -36,10 +36,21 @@
 
     #
     # convert the HTML in ODT file
+    # the command Xvbf is available only in the server
+    # not in the development area
     #
     fi_tmp = TemporaryFile()
-    cmd = ["libreoffice", "--headless", "--convert-to", "odt",  fhtml]
-    call(cmd, stdout=fi_tmp)
+
+    if os.path.exists('/usr/bin/Xvfb'):
+        cmd = "Xvbf :1 -screen 0 800x600x8 & "
+        cmd += "libreoffice --nologo --headless --invisible --display :1.0 --convert-to odt "
+        cmd += fhtml
+
+        call(cmd, stdout=fi_tmp, shell=True)
+
+    else:
+        cmd = ["libreoffice", "--headless", "--convert-to", "odt", fhtml]
+        call(cmd, stdout=fi_tmp)
 
     fodt = '%s.odt' % froot