git.meshlink.io Git - catta/blob - avahi-discover-standalone/main.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of avahi.
   5
   6   avahi is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as
   8   published by the Free Software Foundation; either version 2.1 of the
   9   License, or (at your option) any later version.
  10
  11   avahi is distributed in the hope that it will be useful, but WITHOUT
  12   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13   or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
  14   Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public
  17   License along with avahi; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <string.h>
  27
  28 #include <gtk/gtk.h>
  29 #include <glade/glade.h>
  30 #include <avahi-core/core.h>
  31 #include <avahi-common/strlst.h>
  32 #include <avahi-common/util.h>
  33
  34 struct ServiceType;
  35
  36 struct Service {
  37     struct ServiceType *service_type;
  38     gchar *service_name;
  39     gchar *domain_name;
  40
  41     AvahiIfIndex interface;
  42     AvahiProtocol protocol;
  43
  44     GtkTreeRowReference *tree_ref;
  45 };
  46
  47 struct ServiceType {
  48     gchar *service_type;
  49     AvahiServiceBrowser *browser;
  50
  51     GList *services;
  52     GtkTreeRowReference *tree_ref;
  53 };
  54
  55 static GtkWidget *main_window = NULL;
  56 static GtkTreeView *tree_view = NULL;
  57 static GtkTreeStore *tree_store = NULL;
  58 static GtkLabel *info_label = NULL;
  59 static AvahiServer *server = NULL;
  60 static AvahiServiceTypeBrowser *service_type_browser = NULL;
  61 static GHashTable *service_type_hash_table = NULL;
  62 static AvahiServiceResolver *service_resolver = NULL;
  63 static struct Service *current_service = NULL;
  64
  65 static struct Service *get_service(const gchar *service_type, const gchar *service_name, const gchar*domain_name, AvahiIfIndex interface, AvahiProtocol protocol) {
  66     struct ServiceType *st;
  67     GList *l;
  68
  69     if (!(st = g_hash_table_lookup(service_type_hash_table, service_type)))
  70         return NULL;
  71
  72     for (l = st->services; l; l = l->next) {
  73         struct Service *s = l->data;
  74
  75         if (s->interface == interface &&
  76             s->protocol == protocol &&
  77             avahi_domain_equal(s->service_name, service_name) &&
  78             avahi_domain_equal(s->domain_name, domain_name))
  79             return s;
  80     }
  81
  82     return NULL;
  83 }
  84
  85 static void free_service(struct Service *s) {
  86     GtkTreeIter iter;
  87     GtkTreePath *path;
  88
  89     if (current_service == s) {
  90         current_service = NULL;
  91
  92         if (service_resolver) {
  93             avahi_service_resolver_free(service_resolver);
  94             service_resolver = NULL;
  95         }
  96
  97         gtk_label_set_text(info_label, "<i>Service removed</i>");
  98     }
  99
 100     s->service_type->services = g_list_remove(s->service_type->services, s);
 101
 102     path = gtk_tree_row_reference_get_path(s->tree_ref);
 103     gtk_tree_model_get_iter(GTK_TREE_MODEL(tree_store), &iter, path);
 104     gtk_tree_path_free(path);
 105
 106     gtk_tree_store_remove(tree_store, &iter);
 107
 108     gtk_tree_row_reference_free(s->tree_ref);
 109
 110     g_free(s->service_name);
 111     g_free(s->domain_name);
 112     g_free(s);
 113 }
 114
 115 static void service_browser_callback(AvahiServiceBrowser *b, AvahiIfIndex interface, AvahiProtocol protocol, AvahiBrowserEvent event, const gchar *service_name, const gchar *service_type, const gchar *domain_name, gpointer userdata) {
 116
 117     if (event == AVAHI_BROWSER_NEW) {
 118         struct Service *s;
 119         GtkTreeIter iter, piter;
 120         GtkTreePath *path, *ppath;
 121         gchar iface[256];
 122
 123         s = g_new(struct Service, 1);
 124         s->service_name = g_strdup(service_name);
 125         s->domain_name = g_strdup(domain_name);
 126         s->interface = interface;
 127         s->protocol = protocol;
 128         s->service_type = g_hash_table_lookup(service_type_hash_table, service_type);
 129         g_assert(s->service_type);
 130
 131         s->service_type->services = g_list_prepend(s->service_type->services, s);
 132
 133         ppath = gtk_tree_row_reference_get_path(s->service_type->tree_ref);
 134         gtk_tree_model_get_iter(GTK_TREE_MODEL(tree_store), &piter, ppath);
 135
 136         snprintf(iface, sizeof(iface), "#%i %s", interface, protocol == AF_INET ? "IPv4" : "IPv6");
 137
 138         gtk_tree_store_append(tree_store, &iter, &piter);
 139         gtk_tree_store_set(tree_store, &iter, 0, s->service_name, 1, iface, 2, s, -1);
 140
 141         path = gtk_tree_model_get_path(GTK_TREE_MODEL(tree_store), &iter);
 142         s->tree_ref = gtk_tree_row_reference_new(GTK_TREE_MODEL(tree_store), path);
 143         gtk_tree_path_free(path);
 144
 145         gtk_tree_view_expand_row(tree_view, ppath, FALSE);
 146         gtk_tree_path_free(ppath);
 147
 148
 149     } else if (event == AVAHI_BROWSER_REMOVE) {
 150         struct Service* s;
 151
 152         if ((s = get_service(service_type, service_name, domain_name, interface, protocol)))
 153             free_service(s);
 154     }
 155 }
 156
 157 static void service_type_browser_callback(AvahiServiceTypeBrowser *b, AvahiIfIndex interface, AvahiProtocol protocol, AvahiBrowserEvent event, const gchar *service_type, const gchar *domain, gpointer userdata) {
 158     struct ServiceType *st;
 159     GtkTreePath *path;
 160     GtkTreeIter iter;
 161
 162     if (event != AVAHI_BROWSER_NEW)
 163         return;
 164
 165     if (g_hash_table_lookup(service_type_hash_table, service_type))
 166         return;
 167
 168     st = g_new(struct ServiceType, 1);
 169     st->service_type = g_strdup(service_type);
 170     st->services = NULL;
 171
 172     gtk_tree_store_append(tree_store, &iter, NULL);
 173     gtk_tree_store_set(tree_store, &iter, 0, st->service_type, 1, "", 2, NULL, -1);
 174
 175     path = gtk_tree_model_get_path(GTK_TREE_MODEL(tree_store), &iter);
 176     st->tree_ref = gtk_tree_row_reference_new(GTK_TREE_MODEL(tree_store), path);
 177     gtk_tree_path_free(path);
 178
 179     g_hash_table_insert(service_type_hash_table, st->service_type, st);
 180
 181     st->browser = avahi_service_browser_new(server, -1, AF_UNSPEC, st->service_type, domain, service_browser_callback, NULL);
 182 }
 183
 184 static void update_label(struct Service *s, const gchar *hostname, const AvahiAddress *a, guint16 port, AvahiStringList *txt) {
 185     gchar t[512], address[64], *txt_s;
 186
 187     if (a && hostname) {
 188         char na[256];
 189         avahi_address_snprint(na, sizeof(na), a);
 190         snprintf(address, sizeof(address), "%s/%s:%u", hostname, na, port);
 191         txt_s = avahi_string_list_to_string(txt);
 192     } else {
 193         snprintf(address, sizeof(address), "<i>n/a</i>");
 194         txt_s = g_strdup("<i>n/a</i>");
 195     }
 196
 197     snprintf(t, sizeof(t),
 198              "<b>Service Type:</b> %s\n"
 199              "<b>Service Name:</b> %s\n"
 200              "<b>Domain Name:</b> %s\n"
 201              "<b>Interface:</b> %i %s\n"
 202              "<b>Address:</b> %s\n"
 203              "<b>TXT Data:</b> %s",
 204              s->service_type->service_type,
 205              s->service_name,
 206              s->domain_name,
 207              s->interface,
 208              s->protocol == AF_INET ? "IPv4" : "IPv6",
 209              address,
 210              txt_s);
 211
 212     gtk_label_set_markup(info_label, t);
 213
 214     g_free(txt_s);
 215 }
 216
 217 static struct Service *get_service_on_cursor(void) {
 218     GtkTreePath *path;
 219     struct Service *s;
 220     GtkTreeIter iter;
 221
 222     gtk_tree_view_get_cursor(tree_view, &path, NULL);
 223     gtk_tree_model_get_iter(GTK_TREE_MODEL(tree_store), &iter, path);
 224     gtk_tree_model_get(GTK_TREE_MODEL(tree_store), &iter, 2, &s, -1);
 225     gtk_tree_path_free(path);
 226
 227     return s;
 228 }
 229
 230
 231 static void service_resolver_callback(AvahiServiceResolver *r, AvahiIfIndex interface, AvahiProtocol protocol, AvahiResolverEvent event, const gchar *name, const gchar *type, const gchar *domain, const gchar *host_name, const AvahiAddress *a, guint16 port, AvahiStringList *txt, gpointer userdata) {
 232     struct Service *s;
 233     g_assert(r);
 234
 235     if (!(s = get_service_on_cursor()) || userdata != s) {
 236         g_assert(r == service_resolver);
 237         avahi_service_resolver_free(service_resolver);
 238         service_resolver = NULL;
 239     }
 240
 241     if (event == AVAHI_RESOLVER_TIMEOUT)
 242         gtk_label_set_markup(info_label, "<i>Failed to resolve.</i>");
 243     else
 244         update_label(s, host_name, a, port, txt);
 245 }
 246
 247 static void tree_view_on_cursor_changed(GtkTreeView *tv, gpointer userdata) {
 248     struct Service *s;
 249
 250     if (!(s = get_service_on_cursor()))
 251         return;
 252
 253     if (service_resolver)
 254         avahi_service_resolver_free(service_resolver);
 255
 256     update_label(s, NULL, NULL, 0, NULL);
 257
 258     service_resolver = avahi_service_resolver_new(server, s->interface, s->protocol, s->service_name, s->service_type->service_type, s->domain_name, AF_UNSPEC, service_resolver_callback, s);
 259 }
 260
 261 static gboolean main_window_on_delete_event(GtkWidget *widget, GdkEvent *event, gpointer user_data) {
 262     gtk_main_quit();
 263     return FALSE;
 264 }
 265
 266 int main(int argc, char *argv[]) {
 267     GladeXML *xml;
 268     AvahiServerConfig config;
 269     GtkTreeViewColumn *c;
 270     gint error;
 271
 272     gtk_init(&argc, &argv);
 273     glade_init();
 274
 275     xml = glade_xml_new(AVAHI_INTERFACES_DIR"avahi-discover.glade", NULL, NULL);
 276     main_window = glade_xml_get_widget(xml, "main_window");
 277     g_signal_connect(main_window, "delete-event", (GCallback) main_window_on_delete_event, NULL);
 278
 279     tree_view = GTK_TREE_VIEW(glade_xml_get_widget(xml, "tree_view"));
 280     g_signal_connect(GTK_WIDGET(tree_view), "cursor-changed", (GCallback) tree_view_on_cursor_changed, NULL);
 281
 282     info_label = GTK_LABEL(glade_xml_get_widget(xml, "info_label"));
 283
 284     tree_store = gtk_tree_store_new(3, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_POINTER);
 285     gtk_tree_view_set_model(tree_view, GTK_TREE_MODEL(tree_store));
 286     gtk_tree_view_insert_column_with_attributes(tree_view, -1, "Name", gtk_cell_renderer_text_new(), "text", 0, NULL);
 287     gtk_tree_view_insert_column_with_attributes(tree_view, -1, "Interface", gtk_cell_renderer_text_new(), "text", 1, NULL);
 288
 289     gtk_tree_view_column_set_resizable(c = gtk_tree_view_get_column(tree_view, 0), TRUE);
 290     gtk_tree_view_column_set_sizing(c, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 291     gtk_tree_view_column_set_expand(c, TRUE);
 292
 293     service_type_hash_table = g_hash_table_new((GHashFunc) avahi_domain_hash, (GEqualFunc) avahi_domain_equal);
 294
 295     avahi_server_config_init(&config);
 296     config.publish_hinfo = config.publish_addresses = config.publish_domain = config.publish_workstation = FALSE;
 297     server = avahi_server_new(NULL, &config, NULL, NULL, &error);
 298     avahi_server_config_free(&config);
 299
 300     g_assert(server);
 301
 302     service_type_browser = avahi_service_type_browser_new(server, -1, AF_UNSPEC, argc >= 2 ? argv[1] : NULL, service_type_browser_callback, NULL);
 303
 304     gtk_main();
 305
 306     avahi_server_free(server);
 307
 308     return 0;
 309 }