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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the program; if not, see <http://www.gnu.org/licenses/>
*
*
* Authors:
* David Trowbridge <trowbrds@cs.colorado.edu>
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <glib/gi18n.h>
#include <gconf/gconf-client.h>
#include <libedataserver/e-source.h>
#include <libedataserver/e-source-list.h>
#include <libedataserverui/e-client-utils.h>
#include <libecal/e-cal-client.h>
#include <libecal/e-cal-util.h>
#include "publish-format-ical.h"
typedef struct {
GHashTable *zones;
ECalClient *client;
} CompTzData;
static void
insert_tz_comps (icalparameter *param, gpointer cb_data)
{
const gchar *tzid;
CompTzData *tdata = cb_data;
icaltimezone *zone = NULL;
icalcomponent *tzcomp;
GError *error = NULL;
tzid = icalparameter_get_tzid (param);
if (g_hash_table_lookup (tdata->zones, tzid))
return;
if (!e_cal_client_get_timezone_sync (tdata->client, tzid, &zone, NULL, &error)) {
g_warning ("Could not get the timezone information for %s : %s \n", tzid, error->message);
g_error_free (error);
return;
}
tzcomp = icalcomponent_new_clone (icaltimezone_get_component (zone));
g_hash_table_insert (tdata->zones, (gpointer) tzid, (gpointer) tzcomp);
}
static void
append_tz_to_comp (gpointer key, gpointer value, icalcomponent *toplevel)
{
icalcomponent_add_component (toplevel, (icalcomponent *) value);
}
static gboolean
write_calendar (const gchar *uid, ESourceList *source_list, GOutputStream *stream, GError **error)
{
ESource *source;
ECalClient *client = NULL;
GSList *objects;
icalcomponent *top_level;
gboolean res = FALSE;
source = e_source_list_peek_source_by_uid (source_list, uid);
if (source)
client = e_cal_client_new (source, E_CAL_CLIENT_SOURCE_TYPE_EVENTS, error);
if (!client) {
if (error && !error)
*error = g_error_new (E_CAL_CLIENT_ERROR, E_CAL_CLIENT_ERROR_NO_SUCH_CALENDAR, _("Could not publish calendar: Calendar backend no longer exists"));
return FALSE;
}
g_signal_connect (client, "authenticate", G_CALLBACK (e_client_utils_authenticate_handler), NULL);
if (!e_client_open_sync (E_CLIENT (client), TRUE, NULL, error)) {
g_object_unref (client);
return FALSE;
}
top_level = e_cal_util_new_top_level ();
if (e_cal_client_get_object_list_sync (client, "#t", &objects, NULL, error)) {
GSList *iter;
gchar *ical_string;
CompTzData tdata;
tdata.zones = g_hash_table_new (g_str_hash, g_str_equal);
tdata.client = client;
for (iter = objects; iter; iter = iter->next) {
icalcomponent *icalcomp = objects->data;
icalcomponent_foreach_tzid (icalcomp, insert_tz_comps, &tdata);
icalcomponent_add_component (top_level, icalcomp);
}
g_hash_table_foreach (tdata.zones, (GHFunc) append_tz_to_comp, top_level);
g_hash_table_destroy (tdata.zones);
tdata.zones = NULL;
ical_string = icalcomponent_as_ical_string_r (top_level);
res = g_output_stream_write_all (stream, ical_string, strlen (ical_string), NULL, NULL, error);
g_free (ical_string);
e_cal_client_free_icalcomp_slist (objects);
}
g_object_unref (client);
icalcomponent_free (top_level);
return res;
}
void
publish_calendar_as_ical (GOutputStream *stream, EPublishUri *uri, GError **error)
{
GSList *l;
ESourceList *source_list;
/* events */
if (!e_cal_client_get_sources (&source_list, E_CAL_CLIENT_SOURCE_TYPE_EVENTS, error))
return;
l = uri->events;
while (l) {
gchar *uid = l->data;
if (!write_calendar (uid, source_list, stream, error))
break;
l = g_slist_next (l);
}
g_object_unref (source_list);
}
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