/*
* Evolution calendar importer component
*
* 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:
* Rodrigo Moya <rodrigo@ximian.com>
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <glib/gi18n.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <fcntl.h>
#include <gtk/gtk.h>
#include <libecal/e-cal.h>
#include <libedataserverui/e-source-selector.h>
#include <libical/icalvcal.h>
#include "evolution-calendar-importer.h"
#include "common/authentication.h"
#include "e-util/e-import.h"
#include "e-util/e-util-private.h"
/* We timeout after 2 minutes, when opening the folders. */
#define IMPORTER_TIMEOUT_SECONDS 120
typedef struct {
EImport *import;
EImportTarget *target;
guint idle_id;
ECal *client;
ECalSourceType source_type;
icalcomponent *icalcomp;
guint cancelled:1;
} ICalImporter;
typedef struct {
guint cancelled:1;
} ICalIntelligentImporter;
static const gint import_type_map[] = {
E_CAL_SOURCE_TYPE_EVENT,
E_CAL_SOURCE_TYPE_TODO,
-1
};
static const gchar *import_type_strings[] = {
N_("Appointments and Meetings"),
N_("Tasks"),
NULL
};
/*
* Functions shared by iCalendar & vCalendar importer.
*/
static void
ivcal_import_done(ICalImporter *ici)
{
g_object_unref (ici->client);
icalcomponent_free (ici->icalcomp);
e_import_complete(ici->import, ici->target);
g_object_unref(ici->import);
g_free (ici);
}
/* This removes all components except VEVENTs and VTIMEZONEs from the toplevel */
static void
prepare_events (icalcomponent *icalcomp, GList **vtodos)
{
icalcomponent *subcomp;
icalcompiter iter;
if (vtodos)
*vtodos = NULL;
iter = icalcomponent_begin_component (icalcomp, ICAL_ANY_COMPONENT);
while ((subcomp = icalcompiter_deref (&iter)) != NULL) {
icalcomponent_kind child_kind = icalcomponent_isa (subcomp);
if (child_kind != ICAL_VEVENT_COMPONENT
&& child_kind != ICAL_VTIMEZONE_COMPONENT) {
icalcompiter_next (&iter);
icalcomponent_remove_component (icalcomp, subcomp);
if (child_kind == ICAL_VTODO_COMPONENT && vtodos)
*vtodos = g_list_prepend (*vtodos, subcomp);
else
icalcomponent_free (subcomp);
} else {
icalcompiter_next (&iter);
}
}
}
/* This removes all components except VTODOs and VTIMEZONEs from the toplevel
icalcomponent, and adds the given list of VTODO components. The list is
freed afterwards. */
static void
prepare_tasks (icalcomponent *icalcomp, GList *vtodos)
{
icalcomponent *subcomp;
GList *elem;
icalcompiter iter;
iter = icalcomponent_begin_component (icalcomp, ICAL_ANY_COMPONENT);
while ((subcomp = icalcompiter_deref (&iter)) != NULL) {
icalcomponent_kind child_kind = icalcomponent_isa (subcomp);
if (child_kind != ICAL_VTODO_COMPONENT
&& child_kind != ICAL_VTIMEZONE_COMPONENT) {
icalcompiter_next (&iter);
icalcomponent_remove_component (icalcomp, subcomp);
icalcomponent_free (subcomp);
} else {
icalcompiter_next (&iter);
}
}
for (elem = vtodos; elem; elem = elem->next) {
icalcomponent_add_component (icalcomp, elem->data);
}
g_list_free (vtodos);
}
static gboolean
update_objects (ECal *client, icalcomponent *icalcomp)
{
icalcomponent_kind kind;
icalcomponent *vcal;
gboolean success = TRUE;
kind = icalcomponent_isa (icalcomp);
if (kind == ICAL_VTODO_COMPONENT || kind == ICAL_VEVENT_COMPONENT) {
vcal = e_cal_util_new_top_level ();
if (icalcomponent_get_method (icalcomp) == ICAL_METHOD_CANCEL)
icalcomponent_set_method (vcal, ICAL_METHOD_CANCEL);
else
icalcomponent_set_method (vcal, ICAL_METHOD_PUBLISH);
icalcomponent_add_component (vcal, icalcomponent_new_clone (icalcomp));
} else if (kind == ICAL_VCALENDAR_COMPONENT) {
vcal = icalcomponent_new_clone (icalcomp);
if (!icalcomponent_get_first_property (vcal, ICAL_METHOD_PROPERTY))
icalcomponent_set_method (vcal, ICAL_METHOD_PUBLISH);
} else
return FALSE;
if (!e_cal_receive_objects (client, vcal, NULL))
success = FALSE;
icalcomponent_free (vcal);
return success;
}
struct _selector_data {
EImportTarget *target;
GtkWidget *selector;
GtkWidget *notebook;
gint page;
};
static void
button_toggled_cb (GtkWidget *widget, struct _selector_data *sd)
{
g_datalist_set_data_full(&sd->target->data, "primary-source",
g_object_ref(e_source_selector_peek_primary_selection((ESourceSelector *)sd->selector)),
g_object_unref);
g_datalist_set_data(&sd->target->data, "primary-type", GINT_TO_POINTER(import_type_map[sd->page]));
gtk_notebook_set_current_page((GtkNotebook *)sd->notebook, sd->page);
}
static void
primary_selection_changed_cb (ESourceSelector *selector, EImportTarget *target)
{
g_datalist_set_data_full(&target->data, "primary-source",
g_object_ref(e_source_selector_peek_primary_selection(selector)),
g_object_unref);
}
static GtkWidget *
ivcal_getwidget(EImport *ei, EImportTarget *target, EImportImporter *im)
{
GtkWidget *vbox, *hbox, *first = NULL;
GSList *group = NULL;
gint i;
GtkWidget *nb;
vbox = gtk_vbox_new (FALSE, FALSE);
hbox = gtk_hbox_new (FALSE, FALSE);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, TRUE, 6);
nb = gtk_notebook_new ();
gtk_notebook_set_show_tabs (GTK_NOTEBOOK (nb), FALSE);
gtk_box_pack_start (GTK_BOX (vbox), nb, TRUE, TRUE, 6);
/* Type of icalendar items */
for (i = 0; import_type_map[i] != -1; i++) {
GtkWidget *selector, *rb;
ESourceList *source_list;
ESource *primary;
GtkWidget *scrolled;
struct _selector_data *sd;
/* FIXME Better error handling */
if (!e_cal_get_sources (&source_list, import_type_map[i], NULL))
continue;
selector = e_source_selector_new (source_list);
e_source_selector_show_selection (E_SOURCE_SELECTOR (selector), FALSE);
scrolled = gtk_scrolled_window_new(NULL, NULL);
gtk_scrolled_window_set_policy((GtkScrolledWindow *)scrolled, GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
gtk_container_add((GtkContainer *)scrolled, selector);
gtk_notebook_append_page (GTK_NOTEBOOK (nb), scrolled, NULL);
/* FIXME What if no sources? */
primary = e_source_list_peek_source_any (source_list);
e_source_selector_set_primary_selection (E_SOURCE_SELECTOR (selector), primary);
g_signal_connect (selector, "primary_selection_changed", G_CALLBACK (primary_selection_changed_cb), target);
rb = gtk_radio_button_new_with_label (group, _(import_type_strings[i]));
gtk_box_pack_start (GTK_BOX (hbox), rb, FALSE, FALSE, 6);
sd = g_malloc0(sizeof(*sd));
sd->target = target;
sd->selector = selector;
sd->notebook = nb;
sd->page = i;
g_object_set_data_full((GObject *)rb, "selector-data", sd, g_free);
g_signal_connect(G_OBJECT (rb), "toggled", G_CALLBACK (button_toggled_cb), sd);
if (!group)
group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (rb));
if (first == NULL) {
g_datalist_set_data_full(&target->data, "primary-source", g_object_ref(primary), g_object_unref);
g_datalist_set_data(&target->data, "primary-type", GINT_TO_POINTER(import_type_map[i]));
first = rb;
}
g_object_unref (source_list);
}
if (first)
gtk_toggle_button_set_active((GtkToggleButton *)first, TRUE);
gtk_widget_show_all (vbox);
return vbox;
}
static gboolean
ivcal_import_items(gpointer d)
{
ICalImporter *ici = d;
switch (ici->source_type) {
case E_CAL_SOURCE_TYPE_EVENT:
prepare_events (ici->icalcomp, NULL);
if (!update_objects (ici->client, ici->icalcomp)) {
/* FIXME: e_alert ... */;
}
break;
case E_CAL_SOURCE_TYPE_TODO:
prepare_tasks (ici->icalcomp, NULL);
if (!update_objects (ici->client, ici->icalcomp)) {
/* FIXME: e_alert ... */;
}
break;
default:
g_return_val_if_reached (FALSE);
}
ivcal_import_done(ici);
ici->idle_id = 0;
return FALSE;
}
static void
ivcal_opened(ECal *ecal, ECalendarStatus status, ICalImporter *ici)
{
if (!ici->cancelled && status == E_CALENDAR_STATUS_OK) {
e_import_status(ici->import, ici->target, _("Importing..."), 0);
ici->idle_id = g_idle_add(ivcal_import_items, ici);
} else
ivcal_import_done(ici);
}
static void
ivcal_import(EImport *ei, EImportTarget *target, icalcomponent *icalcomp)
{
ECal *client;
ECalSourceType type;
type = GPOINTER_TO_INT(g_datalist_get_data(&target->data, "primary-type"));
client = auth_new_cal_from_source (g_datalist_get_data(&target->data, "primary-source"), type);
if (client) {
ICalImporter *ici = g_malloc0(sizeof(*ici));
ici->import = ei;
g_datalist_set_data(&target->data, "ivcal-data", ici);
g_object_ref(ei);
ici->target = target;
ici->icalcomp = icalcomp;
ici->client = client;
ici->source_type = type;
e_import_status(ei, target, _("Opening calendar"), 0);
g_signal_connect(client, "cal-opened", G_CALLBACK(ivcal_opened), ici);
e_cal_open_async(client, TRUE);
return;
} else {
icalcomponent_free(icalcomp);
e_import_complete(ei, target);
}
}
static void
ivcal_cancel(EImport *ei, EImportTarget *target, EImportImporter *im)
{
ICalImporter *ici = g_datalist_get_data(&target->data, "ivcal-data");
if (ici)
ici->cancelled = 1;
}
/* ********************************************************************** */
/*
* iCalendar importer functions.
*/
static gboolean
ical_supported(EImport *ei, EImportTarget *target, EImportImporter *im)
{
gchar *filename;
gchar *contents;
gboolean ret = FALSE;
EImportTargetURI *s;
if (target->type != E_IMPORT_TARGET_URI)
return FALSE;
s = (EImportTargetURI *)target;
if (s->uri_src == NULL)
return TRUE;
if (strncmp(s->uri_src, "file:///", 8) != 0)
return FALSE;
filename = g_filename_from_uri (s->uri_src, NULL, NULL);
if (!filename)
return FALSE;
if (g_file_get_contents (filename, &contents, NULL, NULL)) {
icalcomponent *icalcomp;
icalcomp = e_cal_util_parse_ics_string (contents);
g_free (contents);
if (icalcomp) {
if (icalcomponent_is_valid (icalcomp))
ret = TRUE;
else
ret = FALSE;
icalcomponent_free (icalcomp);
}
}
g_free (filename);
return ret;
}
static void
ical_import(EImport *ei, EImportTarget *target, EImportImporter *im)
{
gchar *filename;
gchar *contents;
icalcomponent *icalcomp;
EImportTargetURI *s = (EImportTargetURI *)target;
filename = g_filename_from_uri (s->uri_src, NULL, NULL);
if (!filename) {
e_import_complete(ei, target);
return;
}
if (!g_file_get_contents (filename, &contents, NULL, NULL)) {
g_free (filename);
e_import_complete(ei, target);
return;
}
g_free (filename);
icalcomp = e_cal_util_parse_ics_string (contents);
g_free (contents);
if (icalcomp)
ivcal_import(ei, target, icalcomp);
else
e_import_complete(ei, target);
}
static EImportImporter ical_importer = {
E_IMPORT_TARGET_URI,
0,
ical_supported,
ivcal_getwidget,
ical_import,
ivcal_cancel,
};
EImportImporter *
ical_importer_peek(void)
{
ical_importer.name = _("iCalendar files (.ics)");
ical_importer.description = _("Evolution iCalendar importer");
return &ical_importer;
}
/* ********************************************************************** */
/*
* vCalendar importer functions.
*/
static gboolean
vcal_supported(EImport *ei, EImportTarget *target, EImportImporter *im)
{
gchar *filename;
gchar *contents;
gboolean ret = FALSE;
EImportTargetURI *s;
if (target->type != E_IMPORT_TARGET_URI)
return FALSE;
s = (EImportTargetURI *)target;
if (s->uri_src == NULL)
return TRUE;
if (strncmp(s->uri_src, "file:///", 8) != 0)
return FALSE;
filename = g_filename_from_uri (s->uri_src, NULL, NULL);
if (!filename)
return FALSE;
/* Z: Wow, this is *efficient* */
if (g_file_get_contents(filename, &contents, NULL, NULL)) {
VObject *vcal;
icalcomponent *icalcomp;
icalcomp = e_cal_util_parse_ics_string (contents);
if (icalcomp && icalcomponent_is_valid (icalcomp)) {
/* If we can create proper iCalendar from the file, then
rather use ics importer, because it knows to read more
information than older version, the vCalendar. */
ret = FALSE;
g_free (contents);
} else {
if (icalcomp)
icalcomponent_free (icalcomp);
/* parse the file */
vcal = Parse_MIME (contents, strlen (contents));
g_free (contents);
if (vcal) {
icalcomp = icalvcal_convert (vcal);
if (icalcomp) {
icalcomponent_free (icalcomp);
ret = TRUE;
}
cleanVObject (vcal);
}
}
}
g_free (filename);
return ret;
}
/* This tries to load in a vCalendar file and convert it to an icalcomponent.
It returns NULL on failure. */
static icalcomponent*
load_vcalendar_file (const gchar *filename)
{
icalvcal_defaults defaults = { NULL };
icalcomponent *icalcomp = NULL;
gchar *contents;
gchar *default_alarm_filename;
default_alarm_filename = g_build_filename (EVOLUTION_SOUNDDIR,
"default_alarm.wav",
NULL);
defaults.alarm_audio_url = g_filename_to_uri (default_alarm_filename,
NULL, NULL);
g_free (default_alarm_filename);
defaults.alarm_audio_fmttype = (gchar *) "audio/x-wav";
defaults.alarm_description = (gchar *) _("Reminder!");
if (g_file_get_contents (filename, &contents, NULL, NULL)) {
VObject *vcal;
/* parse the file */
vcal = Parse_MIME (contents, strlen (contents));
g_free (contents);
if (vcal) {
icalcomp = icalvcal_convert_with_defaults (vcal,
&defaults);
cleanVObject (vcal);
}
}
return icalcomp;
}
static void
vcal_import(EImport *ei, EImportTarget *target, EImportImporter *im)
{
gchar *filename;
icalcomponent *icalcomp;
EImportTargetURI *s = (EImportTargetURI *)target;
filename = g_filename_from_uri(s->uri_src, NULL, NULL);
if (!filename) {
e_import_complete(ei, target);
return;
}
icalcomp = load_vcalendar_file(filename);
g_free (filename);
if (icalcomp)
ivcal_import(ei, target, icalcomp);
else
e_import_complete(ei, target);
}
static EImportImporter vcal_importer = {
E_IMPORT_TARGET_URI,
0,
vcal_supported,
ivcal_getwidget,
vcal_import,
ivcal_cancel,
};
EImportImporter *
vcal_importer_peek(void)
{
vcal_importer.name = _("vCalendar files (.vcf)");
vcal_importer.description = _("Evolution vCalendar importer");
return &vcal_importer;
}
/* ********************************************************************** */
static gboolean
gnome_calendar_supported(EImport *ei, EImportTarget *target, EImportImporter *im)
{
gchar *filename;
gboolean res;
if (target->type != E_IMPORT_TARGET_HOME)
return FALSE;
filename = g_build_filename(g_get_home_dir (), "user-cal.vcf", NULL);
res = g_file_test(filename, G_FILE_TEST_IS_REGULAR);
g_free (filename);
return res;
}
static void
gnome_calendar_import(EImport *ei, EImportTarget *target, EImportImporter *im)
{
icalcomponent *icalcomp = NULL;
gchar *filename;
GList *vtodos;
ECal *calendar_client = NULL, *tasks_client = NULL;
gint t;
gint do_calendar, do_tasks;
ICalIntelligentImporter *ici;
/* This is pretty shitty, everything runs in the gui thread and can block
for quite some time */
do_calendar = GPOINTER_TO_INT(g_datalist_get_data(&target->data, "gnomecal-do-cal"));
do_tasks = GPOINTER_TO_INT(g_datalist_get_data(&target->data, "gnomecal-do-tasks"));
/* If neither is selected, just return. */
if (!do_calendar && !do_tasks)
return;
e_import_status(ei, target, _("Opening calendar"), 0);
/* Try to open the default calendar & tasks folders. */
if (do_calendar) {
calendar_client = auth_new_cal_from_default (E_CAL_SOURCE_TYPE_EVENT);
if (!calendar_client)
goto out;
}
if (do_tasks) {
tasks_client = auth_new_cal_from_default (E_CAL_SOURCE_TYPE_TODO);
if (!tasks_client)
goto out;
}
/* Load the Gnome Calendar file and convert to iCalendar. */
filename = g_build_filename(g_get_home_dir (), "user-cal.vcf", NULL);
icalcomp = load_vcalendar_file (filename);
g_free (filename);
/* If we couldn't load the file, just return. FIXME: Error message? */
if (!icalcomp)
goto out;
ici = g_malloc0(sizeof(*ici));
g_datalist_set_data_full(&target->data, "gnomecal-data", ici, g_free);
/* Wait for client to finish opening the calendar & tasks folders. */
for (t = 0; t < IMPORTER_TIMEOUT_SECONDS; t++) {
ECalLoadState calendar_state, tasks_state;
calendar_state = tasks_state = E_CAL_LOAD_LOADED;
/* We need this so the ECal gets notified that the
folder is opened, via Corba. */
while (gtk_events_pending ())
gtk_main_iteration ();
if (do_calendar)
calendar_state = e_cal_get_load_state (calendar_client);
if (do_tasks)
tasks_state = e_cal_get_load_state (tasks_client);
if (calendar_state == E_CAL_LOAD_LOADED
&& tasks_state == E_CAL_LOAD_LOADED)
break;
g_usleep(1000000);
if (ici->cancelled)
goto out;
}
/* If we timed out, just return. */
if (t == IMPORTER_TIMEOUT_SECONDS)
goto out;
e_import_status(ei, target, _("Importing..."), 0);
/*
* Import the calendar events into the default calendar folder.
*/
prepare_events (icalcomp, &vtodos);
if (do_calendar)
update_objects (calendar_client, icalcomp);
if (ici->cancelled)
goto out;
/*
* Import the tasks into the default tasks folder.
*/
prepare_tasks (icalcomp, vtodos);
if (do_tasks)
update_objects (tasks_client, icalcomp);
out:
if (icalcomp)
icalcomponent_free (icalcomp);
if (calendar_client)
g_object_unref (calendar_client);
if (tasks_client)
g_object_unref (tasks_client);
e_import_complete(ei, target);
}
static void
calendar_toggle_cb(GtkToggleButton *tb, EImportTarget *target)
{
g_datalist_set_data(&target->data, "gnomecal-do-cal", GINT_TO_POINTER(gtk_toggle_button_get_active(tb)));
}
static void
tasks_toggle_cb(GtkToggleButton *tb, EImportTarget *target)
{
g_datalist_set_data(&target->data, "gnomecal-do-tasks", GINT_TO_POINTER(gtk_toggle_button_get_active(tb)));
}
static GtkWidget *
gnome_calendar_getwidget(EImport *ei, EImportTarget *target, EImportImporter *im)
{
GtkWidget *hbox, *w;
GConfClient *gconf;
gboolean done_cal, done_tasks;
gconf = gconf_client_get_default ();
done_cal = gconf_client_get_bool (gconf, "/apps/evolution/importer/gnome-calendar/calendar", NULL);
done_tasks = gconf_client_get_bool (gconf, "/apps/evolution/importer/gnome-calendar/tasks", NULL);
g_object_unref(gconf);
g_datalist_set_data(&target->data, "gnomecal-do-cal", GINT_TO_POINTER(!done_cal));
g_datalist_set_data(&target->data, "gnomecal-do-tasks", GINT_TO_POINTER(!done_tasks));
hbox = gtk_hbox_new (FALSE, 2);
w = gtk_check_button_new_with_label (_("Calendar Events"));
gtk_toggle_button_set_active((GtkToggleButton *)w, !done_cal);
g_signal_connect (w, "toggled", G_CALLBACK (calendar_toggle_cb), target);
gtk_box_pack_start (GTK_BOX (hbox), w, FALSE, FALSE, 0);
w = gtk_check_button_new_with_label (_("Tasks"));
gtk_toggle_button_set_active((GtkToggleButton *)w, !done_tasks);
g_signal_connect (w, "toggled", G_CALLBACK (tasks_toggle_cb), target);
gtk_box_pack_start (GTK_BOX (hbox), w, FALSE, FALSE, 0);
gtk_widget_show_all (hbox);
return hbox;
}
static void
gnome_calendar_cancel(EImport *ei, EImportTarget *target, EImportImporter *im)
{
ICalIntelligentImporter *ici = g_datalist_get_data(&target->data, "gnomecal-data");
if (ici)
ici->cancelled = 1;
}
static EImportImporter gnome_calendar_importer = {
E_IMPORT_TARGET_HOME,
0,
gnome_calendar_supported,
gnome_calendar_getwidget,
gnome_calendar_import,
gnome_calendar_cancel,
};
EImportImporter *
gnome_calendar_importer_peek(void)
{
gnome_calendar_importer.name = _("Gnome Calendar");
gnome_calendar_importer.description = _("Evolution Calendar intelligent importer");
return &gnome_calendar_importer;
}
