[evolution-ews] In cases we are creating a meeting with attendees and attachments. We have to preform 3 steps in ord

[Pavel Ocheretny <pocheretny src gnome org>]

commit ad41c3faacd161299483b58e672aa8b86461ffce
Author: Pavel Ocheretny <pocheretny src gnome org>
Date:   Tue Aug 2 22:06:46 2011 +0300

    In cases we are creating a meeting with attendees and attachments. We have to preform 3 steps in order to allow attendees to receive attachments in their invite mails.
    1. create meeting and do not send invites
    2. create attachments
    3. dummy update meeting and send invites to all

 src/calendar/e-cal-backend-ews.c |   34 +++++++++++++++++++++++++++++-----
 1 files changed, 29 insertions(+), 5 deletions(-)
---
diff --git a/src/calendar/e-cal-backend-ews.c b/src/calendar/e-cal-backend-ews.c
index 0c08ae9..9b2355e 100644
--- a/src/calendar/e-cal-backend-ews.c
+++ b/src/calendar/e-cal-backend-ews.c
@@ -1203,6 +1203,10 @@ typedef struct {
 } EwsAttachmentsData;
 
 static void
+e_cal_backend_ews_modify_object (ECalBackend *backend, EDataCal *cal, EServerMethodContext context,
+				 const gchar *calobj, CalObjModType mod);
+
+static void
 ews_create_attachments_cb(GObject *object, GAsyncResult *res, gpointer user_data)
 {
 	EEwsConnection *cnc = E_EWS_CONNECTION (object);
@@ -1256,6 +1260,18 @@ ews_create_attachments_cb(GObject *object, GAsyncResult *res, gpointer user_data
 
 	e_cal_component_get_uid(create_data->comp, &comp_uid);
 	if (create_data->cb_type == 1) {
+		/*In case we have attendees we have to fake update items,
+		* this is the only way to pass attachments in meeting invite mail*/
+		if (e_cal_component_has_attendees (create_data->comp)) {
+			icalcomponent *icalcomp = e_cal_component_get_icalcomponent (create_data->comp);
+			/*fake summary update*/
+			const char* summary = icalcomponent_get_summary (icalcomp);
+			char buffer[256];
+			snprintf (buffer, 16, "%s ", summary);
+			icalcomponent_set_summary (icalcomp, buffer);
+
+			e_cal_backend_ews_modify_object ((ECalBackend *) create_data->cbews, create_data->cal, NULL, icalcomponent_as_ical_string (icalcomp), CALOBJ_MOD_ALL);
+		}
 		e_data_cal_notify_object_created (create_data->cal, create_data->context, error, comp_uid, e_cal_component_get_as_string(create_data->comp));
 	} else if (create_data->cb_type == 2) {
 
@@ -1517,7 +1533,13 @@ e_cal_backend_ews_create_object(ECalBackend *backend, EDataCal *cal, EServerMeth
 	create_data->cal = g_object_ref(cal);
 	create_data->context = context;
 
-	if (e_cal_component_has_attachments (comp))
+	/*In case we are creating a meeting with attendees and attachments. 
+	 * We have to preform 3 steps in order to allow attendees to receive attachments in their invite mails.
+	 * 1. create meeting and do not send invites
+	 * 2. create attachments
+	 * 3. dummy update meeting and send invites to all*/
+
+	if (e_cal_component_has_attachments (comp) && e_cal_component_has_attendees (comp))
 		e_ews_connection_create_items_start(priv->cnc,
 					     EWS_PRIORITY_MEDIUM,
 					     "SaveOnly",
@@ -1626,17 +1648,18 @@ ews_cal_modify_object_cb (GObject *object, GAsyncResult *res, gpointer user_data
 	e_cal_component_get_attachment_list (modify_data->oldcomp, &original_attachments);
 	e_cal_component_get_attachment_list (modify_data->comp, &modified_attachments);
 
-	/*ewscal_get_attach_differences (original_attachments, modified_attachments, &removed_attachments, &added_attachments);
+	ewscal_get_attach_differences (original_attachments, modified_attachments, &removed_attachments, &added_attachments);
 	g_slist_free (original_attachments);
-	g_slist_free (modified_attachments);*/
-	removed_attachments = original_attachments;
-	added_attachments = modified_attachments;
+	g_slist_free (modified_attachments);
+	//removed_attachments = original_attachments;
+	//added_attachments = modified_attachments;
 
 	if (added_attachments) {
 		attach_data = g_new0(EwsAttachmentsData, 1);
 
 		attach_data->cbews = g_object_ref (modify_data->cbews);
 		attach_data->comp = g_object_ref (modify_data->comp);
+		attach_data->cb_type = 2;
 
 		e_ews_connection_create_attachments_start (cnc, EWS_PRIORITY_MEDIUM,
 							   item_id, added_attachments,
@@ -1657,6 +1680,7 @@ ews_cal_modify_object_cb (GObject *object, GAsyncResult *res, gpointer user_data
 
 		attach_data->cbews = g_object_ref (modify_data->cbews);
 		attach_data->comp = g_object_ref (modify_data->comp);
+		attach_data->cb_type = 2;
 
 		e_ews_connection_delete_attachments_start (cnc, EWS_PRIORITY_MEDIUM,
 							   removed_attachments_ids,