Committing the intial patch for calendar publishing.

svn path=/trunk/; revision=30875

1 files changed, 115 insertions, 0 deletions

diff --git a/plugins/publish-calendar/publish-format-fb.c b/plugins/publish-calendar/publish-format-fb.c
new file mode 100644
index 0000000000..2e65dcfbf0
--- /dev/null
+++ b/plugins/publish-calendar/publish-format-fb.c
@@ -0,0 +1,115 @@
+/*
+ * Authors: David Trowbridge <trowbrds@cs.colorado.edu>
+ *
+ * Copyright (C) 2005 Novell, Inc. (www.novell.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ */
+
+#include <string.h>
+#include <time.h>
+#include <gconf/gconf-client.h>
+#include <libgnomevfs/gnome-vfs.h>
+#include <libedataserver/e-source.h>
+#include <libedataserver/e-source-list.h>
+#include <libecal/e-cal.h>
+#include <libecal/e-cal-util.h>
+#include <calendar/common/authentication.h>
+#include "publish-format-fb.h"
+
+static gboolean
+write_calendar (gchar *uid, ESourceList *source_list, GnomeVFSHandle *handle)
+{
+	ESource *source;
+	ECal *client = NULL;
+	GError *error = NULL;
+	GList *objects;
+	icaltimezone *utc;
+	time_t start = time(NULL), end;
+	icalcomponent *top_level;
+
+	utc = icaltimezone_get_utc_timezone ();
+	start = time_day_begin_with_zone (start, utc);
+	end = time_add_week_with_zone (start, 6, utc);
+
+	source = e_source_list_peek_source_by_uid (source_list, uid);
+	if (source)
+		client = auth_new_cal_from_source (source, E_CAL_SOURCE_TYPE_EVENT);
+	if (!client) {
+		g_warning (G_STRLOC ": Could not publish calendar: Calendar backend no longer exists");
+		return FALSE;
+	}
+
+	if (!e_cal_open (client, TRUE, &error)) {
+		/* FIXME: EError */
+		g_object_unref (client);
+		g_error_free (error);
+		return FALSE;
+	}
+
+	top_level = e_cal_util_new_top_level ();
+	error = NULL;
+
+	if (e_cal_get_free_busy (client, NULL, start, end, &objects, &error)) {
+		char *ical_string;
+		GnomeVFSFileSize bytes_written;
+		GnomeVFSResult result;
+
+		while (objects) {
+			ECalComponent *comp = objects->data;
+			icalcomponent *icalcomp = e_cal_component_get_icalcomponent (comp);
+			icalcomponent_add_component (top_level, icalcomp);
+			objects = g_list_remove (objects, comp);
+		}
+
+		ical_string = icalcomponent_as_ical_string (top_level);
+		if ((result = gnome_vfs_write (handle, (gconstpointer) ical_string, strlen (ical_string), &bytes_written)) != GNOME_VFS_OK) {
+			/* FIXME: EError */
+			gnome_vfs_close (handle);
+			return FALSE;
+		}
+	} else {
+		/* FIXME: EError */
+		g_object_unref (client);
+		g_error_free (error);
+		return FALSE;
+	}
+
+	g_object_unref (client);
+	return TRUE;
+}
+
+void
+publish_calendar_as_fb (GnomeVFSHandle *handle, EPublishUri *uri)
+{
+	GSList *l;
+	ESourceList *source_list;
+	GConfClient *gconf_client;
+
+	gconf_client = gconf_client_get_default ();
+
+	/* events */
+	source_list = e_source_list_new_for_gconf (gconf_client, "/apps/evolution/calendar/sources");
+	l = uri->events;
+	while (l) {
+		gchar *uid = l->data;
+		write_calendar (uid, source_list, handle);
+		l = g_slist_next (l);
+	}
+	g_object_unref (source_list);
+
+	g_object_unref (gconf_client);
+}