[evolution-data-server] [WebDAV book backend] Return at least offline contacts when not connected

[Milan Crha <mcrha src gnome org>]

commit 94ead8415b46af815d00099573dcbf85524296ea
Author: Milan Crha <mcrha redhat com>
Date:   Thu Feb 5 14:53:33 2015 +0100

    [WebDAV book backend] Return at least offline contacts when not connected
    
    The EBackend::online state doesn't necessarily mean that the book is
    also connected, thus the book_backend_webdav_get_contact_list_sync()
    could fail with 'Authentication required' when it was tried to
    download contacts in the state without credentials.

 .../backends/webdav/e-book-backend-webdav.c        |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/addressbook/backends/webdav/e-book-backend-webdav.c 
b/addressbook/backends/webdav/e-book-backend-webdav.c
index 5f130a5..c9fce94 100644
--- a/addressbook/backends/webdav/e-book-backend-webdav.c
+++ b/addressbook/backends/webdav/e-book-backend-webdav.c
@@ -1789,7 +1789,8 @@ book_backend_webdav_get_contact_list_sync (EBookBackend *backend,
        EBookBackendWebdav *webdav = E_BOOK_BACKEND_WEBDAV (backend);
        GList *contact_list;
 
-       if (e_backend_get_online (E_BACKEND (backend))) {
+       if (e_backend_get_online (E_BACKEND (backend)) &&
+           e_source_get_connection_status (e_backend_get_source (E_BACKEND (backend))) == 
E_SOURCE_CONNECTION_STATUS_CONNECTED) {
                /* make sure the cache is up to date */
                if (!download_contacts (webdav, NULL, NULL, cancellable, error))
                        return FALSE;