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-rw-r--r--calendar/cal-backend.c136
1 files changed, 129 insertions, 7 deletions
diff --git a/calendar/cal-backend.c b/calendar/cal-backend.c
index 6b9894e098..570c4dccdc 100644
--- a/calendar/cal-backend.c
+++ b/calendar/cal-backend.c
@@ -24,6 +24,7 @@
#include "cal-backend.h"
#include "calobj.h"
#include "../libversit/vcc.h"
+#include "icalendar.h"
@@ -37,6 +38,9 @@ typedef struct {
/* URI where the calendar data is stored */
GnomeVFSURI *uri;
+ /* format of this calendar (ical or vcal) */
+ CalendarFormat format;
+
/* List of Cal objects with their listeners */
GList *clients;
@@ -118,6 +122,9 @@ cal_backend_init (CalBackend *backend)
priv = g_new0 (CalBackendPrivate, 1);
backend->priv = priv;
+
+ /* FIXME can be CAL_VCAL or CAL_ICAL */
+ priv->format = CAL_VCAL;
}
/* Saves a calendar */
@@ -550,6 +557,103 @@ cal_backend_add_cal (CalBackend *backend, Cal *cal)
priv->clients = g_list_prepend (priv->clients, cal);
}
+
+static icalcomponent*
+icalendar_parse_file (char* fname)
+{
+ FILE* fp;
+ icalcomponent* comp = NULL;
+ gchar* str;
+ struct stat st;
+ int n;
+
+ fp = fopen (fname, "r");
+ if (!fp) {
+ g_warning ("Cannot open open calendar file.");
+ return NULL;
+ }
+
+ stat (fname, &st);
+
+ str = g_malloc (st.st_size + 2);
+
+ n = fread ((gchar*) str, 1, st.st_size, fp);
+ if (n != st.st_size) {
+ g_warning ("Read error.");
+ }
+ str[n] = '\0';
+
+ fclose (fp);
+
+ comp = icalparser_parse_string (str);
+ g_free (str);
+
+ return comp;
+}
+
+
+static void
+icalendar_calendar_load (CalBackend * cal, char* fname)
+{
+ icalcomponent *comp;
+ icalcomponent *subcomp;
+ iCalObject *ical;
+
+ comp = icalendar_parse_file (fname);
+ subcomp = icalcomponent_get_first_component (comp,
+ ICAL_ANY_COMPONENT);
+ while (subcomp) {
+ ical = ical_object_create_from_icalcomponent (subcomp);
+ if (ical->type != ICAL_EVENT &&
+ ical->type != ICAL_TODO &&
+ ical->type != ICAL_JOURNAL) {
+ g_warning ("Skipping unsupported iCalendar component.");
+ } else
+ add_object (cal, ical);
+ subcomp = icalcomponent_get_next_component (comp,
+ ICAL_ANY_COMPONENT);
+ }
+}
+
+
+/*
+ics is to be used to designate a file containing (an arbitrary set of)
+calendaring and scheduling information.
+
+ifb is to be used to designate a file containing free or busy time
+information.
+
+anything else is assumed to be a vcal file.
+*/
+
+static CalendarFormat
+cal_get_type_from_filename (char *str_uri)
+{
+ int len;
+
+ if (str_uri == NULL)
+ return CAL_VCAL;
+
+ len = strlen (str_uri);
+ if (len < 5)
+ return CAL_VCAL;
+
+ if (str_uri[ len-4 ] == '.' &&
+ str_uri[ len-3 ] == 'i' &&
+ str_uri[ len-2 ] == 'c' &&
+ str_uri[ len-1 ] == 's')
+ return CAL_ICAL;
+
+ if (str_uri[ len-4 ] == '.' &&
+ str_uri[ len-3 ] == 'i' &&
+ str_uri[ len-2 ] == 'f' &&
+ str_uri[ len-1 ] == 'b')
+ return CAL_ICAL;
+
+ return CAL_VCAL;
+}
+
+
/**
* cal_backend_load:
* @backend: A calendar backend.
@@ -586,15 +690,33 @@ cal_backend_load (CalBackend *backend, GnomeVFSURI *uri)
| GNOME_VFS_URI_HIDE_HOST_PORT
| GNOME_VFS_URI_HIDE_TOPLEVEL_METHOD));
- vobject = Parse_MIME_FromFileName (str_uri);
- g_free (str_uri);
- if (!vobject)
- return CAL_BACKEND_LOAD_ERROR;
+ /* look at the extension on the filename and decide
+ if this is a ical or vcal file */
- load_from_vobject (backend, vobject);
- cleanVObject (vobject);
- cleanStrTbl ();
+ priv->format = cal_get_type_from_filename (str_uri);
+
+ /* load */
+
+ switch (priv->format) {
+ case CAL_VCAL:
+ vobject = Parse_MIME_FromFileName (str_uri);
+
+ if (!vobject)
+ return CAL_BACKEND_LOAD_ERROR;
+
+ load_from_vobject (backend, vobject);
+ cleanVObject (vobject);
+ cleanStrTbl ();
+ break;
+ case CAL_ICAL:
+ icalendar_calendar_load (backend, str_uri);
+ break;
+ default:
+ return CAL_BACKEND_LOAD_ERROR;
+ }
+
+ g_free (str_uri);
gnome_vfs_uri_ref (uri);