1/***
2  This file is part of avahi.
3
4  avahi is free software; you can redistribute it and/or modify it
5  under the terms of the GNU Lesser General Public License as
6  published by the Free Software Foundation; either version 2.1 of the
7  License, or (at your option) any later version.
8
9  avahi is distributed in the hope that it will be useful, but WITHOUT
10  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
11  or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
12  Public License for more details.
13
14  You should have received a copy of the GNU Lesser General Public
15  License along with avahi; if not, write to the Free Software
16  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
17  USA.
18***/
19
20#ifdef HAVE_CONFIG_H
21#include <config.h>
22#endif
23
24#include <string.h>
25#include <unistd.h>
26#include <errno.h>
27#include <stdlib.h>
28#include <locale.h>
29#include <getopt.h>
30
31#include <gtk/gtk.h>
32
33#include <avahi-client/client.h>
34#include <avahi-common/strlst.h>
35#include <avahi-common/malloc.h>
36#include <avahi-common/domain.h>
37#include <avahi-common/i18n.h>
38
39#include "avahi-ui.h"
40
41typedef enum {
42    COMMAND_HELP,
43    COMMAND_SSH,
44    COMMAND_VNC,
45    COMMAND_SHELL
46} Command;
47
48typedef struct Config {
49    char *domain;
50    Command command;
51} Config;
52
53static void help(FILE *f, const char *argv0) {
54    fprintf(f,
55            _("%s [options]\n\n"
56              "    -h --help            Show this help\n"
57              "    -s --ssh             Browse SSH servers\n"
58              "    -v --vnc             Browse VNC servers\n"
59              "    -S --shell           Browse both SSH and VNC\n"
60              "    -d --domain=DOMAIN   The domain to browse in\n"),
61            argv0);
62}
63
64static int parse_command_line(Config *c, int argc, char *argv[]) {
65    int o;
66
67    static const struct option long_options[] = {
68        { "help",           no_argument,       NULL, 'h' },
69        { "ssh",            no_argument,       NULL, 's' },
70        { "vnc",            no_argument,       NULL, 'v' },
71        { "shell",          no_argument,       NULL, 'S' },
72        { "domain",         required_argument, NULL, 'd' },
73        { NULL, 0, NULL, 0 }
74    };
75
76    while ((o = getopt_long(argc, argv, "hVd:svS", long_options, NULL)) >= 0) {
77
78        switch(o) {
79            case 'h':
80                c->command = COMMAND_HELP;
81                break;
82            case 's':
83                c->command = COMMAND_SSH;
84                break;
85            case 'v':
86                c->command = COMMAND_VNC;
87                break;
88            case 'S':
89                c->command = COMMAND_SHELL;
90                break;
91            case 'd':
92                avahi_free(c->domain);
93                c->domain = avahi_strdup(optarg);
94                break;
95            default:
96                return -1;
97        }
98    }
99
100    if (optind < argc) {
101        fprintf(stderr, _("Too many arguments\n"));
102        return -1;
103    }
104
105    return 0;
106}
107
108int main(int argc, char*argv[]) {
109    GtkWidget *d;
110    Config config;
111    const char *argv0;
112
113    avahi_init_i18n();
114    setlocale(LC_ALL, "");
115
116    if ((argv0 = strrchr(argv[0], '/')))
117        argv0++;
118    else
119        argv0 = argv[0];
120
121    if (g_str_has_suffix(argv[0], "bshell"))
122        config.command = COMMAND_SHELL;
123    else if (g_str_has_suffix(argv[0], "bvnc"))
124        config.command = COMMAND_VNC;
125    else
126        config.command = COMMAND_SSH;
127
128    /* defaults to local */
129    config.domain = NULL;
130
131    if (parse_command_line(&config, argc, argv) < 0) {
132        help(stderr, argv0);
133        return 1;
134    }
135
136    bindtextdomain (GETTEXT_PACKAGE, GNOMELOCALEDIR);
137    bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
138    textdomain (GETTEXT_PACKAGE);
139
140    gtk_init(&argc, &argv);
141
142    switch (config.command) {
143        case COMMAND_HELP:
144            help(stdout, argv0);
145            return 0;
146            break;
147
148        case COMMAND_SHELL:
149            d = aui_service_dialog_new(_("Choose Shell Server"), NULL, GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_CONNECT, GTK_RESPONSE_ACCEPT, NULL);
150            aui_service_dialog_set_browse_service_types(AUI_SERVICE_DIALOG(d), "_rfb._tcp", "_ssh._tcp", NULL);
151            aui_service_dialog_set_service_type_name(AUI_SERVICE_DIALOG(d), "_rfb._tcp", _("Desktop"));
152            aui_service_dialog_set_service_type_name(AUI_SERVICE_DIALOG(d), "_ssh._tcp", _("Terminal"));
153            break;
154
155        case COMMAND_VNC:
156            d = aui_service_dialog_new(_("Choose VNC server"), NULL, GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_CONNECT, GTK_RESPONSE_ACCEPT, NULL);
157            aui_service_dialog_set_browse_service_types(AUI_SERVICE_DIALOG(d), "_rfb._tcp", NULL);
158            break;
159
160        case COMMAND_SSH:
161            d = aui_service_dialog_new(_("Choose SSH server"), NULL, GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_CONNECT, GTK_RESPONSE_ACCEPT, NULL);
162            aui_service_dialog_set_browse_service_types(AUI_SERVICE_DIALOG(d), "_ssh._tcp", NULL);
163            break;
164    }
165
166    aui_service_dialog_set_domain (AUI_SERVICE_DIALOG(d), config.domain);
167    aui_service_dialog_set_resolve_service(AUI_SERVICE_DIALOG(d), TRUE);
168    aui_service_dialog_set_resolve_host_name(AUI_SERVICE_DIALOG(d), !avahi_nss_support());
169
170    gtk_window_present(GTK_WINDOW(d));
171
172    if (gtk_dialog_run(GTK_DIALOG(d)) == GTK_RESPONSE_ACCEPT) {
173        char a[AVAHI_ADDRESS_STR_MAX], *u = NULL, *n = NULL;
174        char *h = NULL, *t = NULL;
175        const AvahiStringList *txt;
176
177        t = g_strdup(aui_service_dialog_get_service_type(AUI_SERVICE_DIALOG(d)));
178        n = g_strdup(aui_service_dialog_get_service_name(AUI_SERVICE_DIALOG(d)));
179
180        if (avahi_nss_support())
181            h = g_strdup(aui_service_dialog_get_host_name(AUI_SERVICE_DIALOG(d)));
182        else
183            h = g_strdup(avahi_address_snprint(a, sizeof(a), aui_service_dialog_get_address(AUI_SERVICE_DIALOG(d))));
184
185        g_print(_("Connecting to '%s' ...\n"), n);
186
187        if (avahi_domain_equal(t, "_rfb._tcp")) {
188            char p[AVAHI_DOMAIN_NAME_MAX+16];
189            snprintf(p, sizeof(p), "%s:%u", h, aui_service_dialog_get_port(AUI_SERVICE_DIALOG(d))-5900);
190
191            gtk_widget_destroy(d);
192
193            g_print("vncviewer %s\n", p);
194            execlp("xvncviewer", "xvncviewer", p, NULL);
195            execlp("vncviewer", "vncviewer", p, NULL);
196
197        } else {
198            char p[16];
199
200            snprintf(p, sizeof(p), "%u", aui_service_dialog_get_port(AUI_SERVICE_DIALOG(d)));
201
202            for (txt = aui_service_dialog_get_txt_data(AUI_SERVICE_DIALOG(d)); txt; txt = txt->next) {
203                char *key, *value;
204
205                if (avahi_string_list_get_pair((AvahiStringList*) txt, &key, &value, NULL) < 0)
206                    break;
207
208                if (strcmp(key, "u") == 0)
209                    u = g_strdup(value);
210
211                avahi_free(key);
212                avahi_free(value);
213            }
214
215            gtk_widget_destroy(d);
216
217            if (u) {
218                g_print("ssh -p %s -l %s %s\n", p, u, h);
219
220                if (isatty(0) || !getenv("DISPLAY"))
221                    execlp("ssh", "ssh", "-p", p, "-l", u, h, NULL);
222                else {
223                    execlp("x-terminal-emulator", "x-terminal-emulator", "-T", n, "-e", "ssh", "-p", p, "-l", u, h, NULL);
224                    execlp("gnome-terminal", "gnome-terminal", "-t", n, "-x", "ssh", "-p", p, "-l", u, h, NULL);
225                    execlp("xterm", "xterm", "-T", n, "-e", "ssh", "-p", p, "-l", u, h, NULL);
226                }
227            } else {
228                g_print("ssh -p %s %s\n", p, h);
229
230                if (isatty(0) || !getenv("DISPLAY"))
231                    execlp("ssh", "ssh", "-p", p, h, NULL);
232                else {
233                    execlp("x-terminal-emulator", "x-terminal-emulator", "-T", n, "-e", "ssh", "-p", p, h, NULL);
234                    execlp("gnome-terminal", "gnome-terminal", "-t", n, "-x", "ssh", "-p", p, h, NULL);
235                    execlp("xterm", "xterm", "-T", n, "-e", "ssh", "-p", p, h, NULL);
236                }
237            }
238        }
239
240        g_warning(_("execlp() failed: %s\n"), strerror(errno));
241
242        g_free(h);
243        g_free(u);
244        g_free(t);
245        g_free(n);
246
247    } else {
248        gtk_widget_destroy(d);
249
250        g_print(_("Canceled.\n"));
251    }
252
253    g_free(config.domain);
254
255    return 1;
256}
257