[virt-tools-list] [PATCH virt-viewer v2] ovirt-foreign-menu: Bypass errors from Host/Cluster/Data Center

[Eduardo Lima (Etrunko)]

When accessing ovirt as a regular user, it may happen that queries to
Hosts, Clusters and Data Centers return errors due to insufficient
permissions, while they will work fine if access is done by admin user.
In this case, we skip the errors and fallback to the old method.

Signed-off-by: Eduardo Lima (Etrunko) <etrunko at redhat.com>
---
 src/ovirt-foreign-menu.c | 46 +++++++++++++++++++++++++++++-----------
 1 file changed, 34 insertions(+), 12 deletions(-)

diff --git a/src/ovirt-foreign-menu.c b/src/ovirt-foreign-menu.c
index d234a27..36ec2ed 100644
--- a/src/ovirt-foreign-menu.c
+++ b/src/ovirt-foreign-menu.c
@@ -631,12 +631,21 @@ G_GNUC_END_IGNORE_DEPRECATIONS
 }
 
 static gboolean storage_domain_attached_to_data_center(OvirtStorageDomain *domain,
-                                                      OvirtDataCenter *data_center)
+                                                       OvirtDataCenter *data_center)
 {
     GStrv data_center_ids;
     char *data_center_guid;
     gboolean match;
 
+    /* For some reason we did not get data center information, so just return
+     * TRUE as it will work like a fallback to old method, where we did not
+     * check relationship between data center and storage domain.
+     */
+    if (data_center == NULL) {
+        g_debug("Could not get data center info, considering storage domain is attached to it");
+        return TRUE;
+    }
+
     g_object_get(domain, "data-center-ids", &data_center_ids, NULL);
     g_object_get(data_center, "guid", &data_center_guid, NULL);
     match = strv_contains((const gchar * const *) data_center_ids, data_center_guid);
@@ -750,9 +759,6 @@ static void data_center_fetched_cb(GObject *source_object,
     ovirt_resource_refresh_finish(resource, result, &error);
     if (error != NULL) {
         g_debug("failed to fetch Data Center: %s", error->message);
-        g_task_return_error(task, error);
-        g_object_unref(task);
-        return;
     }
 
     ovirt_foreign_menu_next_async_step(menu, task, STATE_DATA_CENTER);
@@ -767,6 +773,12 @@ static void ovirt_foreign_menu_fetch_data_center_async(OvirtForeignMenu *menu,
     g_return_if_fail(OVIRT_IS_CLUSTER(menu->priv->cluster));
 
     menu->priv->data_center = ovirt_cluster_get_data_center(menu->priv->cluster);
+
+    if (menu->priv->data_center == NULL) {
+        ovirt_foreign_menu_next_async_step(menu, task, STATE_DATA_CENTER);
+        return;
+    }
+
     ovirt_resource_refresh_async(OVIRT_RESOURCE(menu->priv->data_center),
                                  menu->priv->proxy,
                                  g_task_get_cancellable(task),
@@ -787,9 +799,6 @@ static void cluster_fetched_cb(GObject *source_object,
     ovirt_resource_refresh_finish(resource, result, &error);
     if (error != NULL) {
         g_debug("failed to fetch Cluster: %s", error->message);
-        g_task_return_error(task, error);
-        g_object_unref(task);
-        return;
     }
 
     ovirt_foreign_menu_next_async_step(menu, task, STATE_CLUSTER);
@@ -801,9 +810,16 @@ static void ovirt_foreign_menu_fetch_cluster_async(OvirtForeignMenu *menu,
 {
     g_return_if_fail(OVIRT_IS_FOREIGN_MENU(menu));
     g_return_if_fail(OVIRT_IS_PROXY(menu->priv->proxy));
-    g_return_if_fail(OVIRT_IS_HOST(menu->priv->host));
 
-    menu->priv->cluster = ovirt_host_get_cluster(menu->priv->host);
+    /* If there is no host information, we get cluster from the VM */
+    if (menu->priv->host == NULL) {
+        g_return_if_fail(OVIRT_IS_VM(menu->priv->vm));
+        menu->priv->cluster = ovirt_vm_get_cluster(menu->priv->vm);
+    } else {
+        g_return_if_fail(OVIRT_IS_HOST(menu->priv->host));
+        menu->priv->cluster = ovirt_host_get_cluster(menu->priv->host);
+    }
+
     ovirt_resource_refresh_async(OVIRT_RESOURCE(menu->priv->cluster),
                                  menu->priv->proxy,
                                  g_task_get_cancellable(task),
@@ -824,9 +840,6 @@ static void host_fetched_cb(GObject *source_object,
     ovirt_resource_refresh_finish(resource, result, &error);
     if (error != NULL) {
         g_debug("failed to fetch Host: %s", error->message);
-        g_task_return_error(task, error);
-        g_object_unref(task);
-        return;
     }
 
     ovirt_foreign_menu_next_async_step(menu, task, STATE_HOST);
@@ -841,6 +854,15 @@ static void ovirt_foreign_menu_fetch_host_async(OvirtForeignMenu *menu,
     g_return_if_fail(OVIRT_IS_VM(menu->priv->vm));
 
     menu->priv->host = ovirt_vm_get_host(menu->priv->vm);
+
+    /* In some cases the VM XML does not include host information, so we just
+     * skip to the next step
+     */
+    if (menu->priv->host == NULL) {
+        ovirt_foreign_menu_next_async_step(menu, task, STATE_HOST);
+        return;
+    }
+
     ovirt_resource_refresh_async(OVIRT_RESOURCE(menu->priv->host),
                                  menu->priv->proxy,
                                  g_task_get_cancellable(task),
-- 
2.20.1