aboutsummaryrefslogtreecommitdiffstats
path: root/plugins/publish-calendar/publish-format-fb.c
blob: 01b4e7a926c030777f69be3adea920f60e1adc89 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
/*
 * 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)
 *
 */

#include <string.h>
#include <time.h>
#include <glib/gi18n.h>
#include <gconf/gconf-client.h>
#include <libedataserver/e-source.h>
#include <libedataserver/e-source-list.h>
#include <libecal/e-cal.h>
#include <libecal/e-cal-util.h>
#include <libecal/e-cal-time-util.h>
#include <calendar/common/authentication.h>
#include "publish-format-fb.h"

static gboolean
write_calendar (gchar *uid, ESourceList *source_list, GOutputStream *stream, gint dur_type, gint dur_value, GError **error)
{
    ESource *source;
    ECal *client = NULL;
    GList *objects;
    icaltimezone *utc;
    time_t start = time(NULL), end;
    icalcomponent *top_level;
    gchar *email = NULL;
    GList *users = NULL;
    gboolean res = FALSE;

    utc = icaltimezone_get_utc_timezone ();
    start = time_day_begin_with_zone (start, utc);

    switch (dur_type) {
    case FB_DURATION_DAYS:
        end = time_add_day_with_zone (start, dur_value, utc);
        break;
    default:
    case FB_DURATION_WEEKS:
        end = time_add_week_with_zone (start, dur_value, utc);
        break;
    case FB_DURATION_MONTHS:
        end = time_add_month_with_zone (start, dur_value, utc);
        break;
    }

    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) {
        if (error)
            *error = g_error_new (e_calendar_error_quark (), E_CALENDAR_STATUS_NO_SUCH_CALENDAR, _("Could not publish calendar: Calendar backend no longer exists"));
        return FALSE;
    }

    if (!e_cal_open (client, TRUE, error)) {
        g_object_unref (client);
        return FALSE;
    }

    if (e_cal_get_cal_address (client, &email, NULL)) {
        if (email && *email)
            users = g_list_append (users, email);
    }

    top_level = e_cal_util_new_top_level ();

    if (e_cal_get_free_busy (client, users, start, end, &objects, error)) {
        gchar *ical_string;

        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_r (top_level);
        res = g_output_stream_write_all (stream, ical_string, strlen (ical_string), NULL, NULL, error);

        g_free (ical_string);
    }

    if (users)
        g_list_free (users);

    g_free (email);
    g_object_unref (client);

    return res;
}

void
publish_calendar_as_fb (GOutputStream *stream, EPublishUri *uri, GError **error)
{
    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;
        if (!write_calendar (uid, source_list, stream, uri->fb_duration_type, uri->fb_duration_value, error))
            break;
        l = g_slist_next (l);
    }
    g_object_unref (source_list);

    g_object_unref (gconf_client);
}