[evolution-ews] Bug 751001 - Permissions on context menu for GAL should be disabled

[Milan Crha <mcrha src gnome org>]

commit c071fa7d46948625773dc279b1e8441cee709e25
Author: Milan Crha <mcrha redhat com>
Date:   Wed Jun 17 18:06:47 2015 +0200

    Bug 751001 - Permissions on context menu for GAL should be disabled

 src/configuration/e-ews-config-utils.c |   24 +++++++++++++++++++++++-
 1 files changed, 23 insertions(+), 1 deletions(-)
---
diff --git a/src/configuration/e-ews-config-utils.c b/src/configuration/e-ews-config-utils.c
index 774a0a2..c6bcc7e 100644
--- a/src/configuration/e-ews-config-utils.c
+++ b/src/configuration/e-ews-config-utils.c
@@ -1165,6 +1165,7 @@ update_ews_source_entries_cb (EShellView *shell_view,
        GtkActionGroup *action_group;
        EShell *shell;
        EShellWindow *shell_window;
+       ESource *source = NULL;
        const gchar *group;
        gboolean is_ews_source, is_online;
 
@@ -1182,7 +1183,28 @@ update_ews_source_entries_cb (EShellView *shell_view,
        else
                g_return_if_reached ();
 
-       is_ews_source = get_selected_ews_source (shell_view, NULL, NULL);
+       is_ews_source = get_selected_ews_source (shell_view, &source, NULL);
+
+       if (is_ews_source) {
+               if (!source || !e_source_has_extension (source, E_SOURCE_EXTENSION_EWS_FOLDER))
+                   is_ews_source = FALSE;
+
+               if (is_ews_source) {
+                       ESourceEwsFolder *ews_folder = e_source_get_extension (source, 
E_SOURCE_EXTENSION_EWS_FOLDER);
+
+                       /* Require both ChangeKey and folder's Id, but GAL can have a ':' in the Id,
+                          which should be ignored, because it's not a valid folder Id. */
+                       if (!e_source_ews_folder_get_id (ews_folder) ||
+                           g_strcmp0 (e_source_ews_folder_get_id (ews_folder), "") == 0 ||
+                           !e_source_ews_folder_get_change_key (ews_folder) ||
+                           g_strcmp0 (e_source_ews_folder_get_change_key (ews_folder), "") == 0 ||
+                           strchr (e_source_ews_folder_get_id (ews_folder), ':') != NULL)
+                               is_ews_source = FALSE;
+               }
+       }
+
+       g_clear_object (&source);
+
        shell_window = e_shell_view_get_shell_window (shell_view);
        shell = e_shell_window_get_shell (shell_window);