git.meshlink.io Git - catta/blob - avahi-python/avahi-discover/avahi-discover.py

   1 #!@PYTHON@
   2 # -*-python-*-
   3 # This file is part of avahi.
   4 #
   5 # avahi is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU Lesser General Public License as
   7 # published by the Free Software Foundation; either version 2 of the
   8 # License, or (at your option) any later version.
   9 #
  10 # avahi is distributed in the hope that it will be useful, but WITHOUT
  11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12 # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
  13 # License for more details.
  14 #
  15 # You should have received a copy of the GNU Lesser General Public
  16 # License along with avahi; if not, write to the Free Software
  17 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  18 # USA.
  19
  20 import os, sys
  21
  22 try:
  23     import avahi, gettext, gtk, gobject, dbus, avahi.ServiceTypeDatabase
  24     gettext.bindtextdomain(@GETTEXT_PACKAGE@, @LOCALEDIR@)
  25     gettext.textdomain(@GETTEXT_PACKAGE@)
  26     _ = gettext.gettext
  27 except ImportError, e:
  28     print "Sorry, to use this tool you need to install Avahi, pygtk and python-dbus.\n Error: %s" % e
  29     sys.exit(1)
  30 except Exception, e:
  31     print "Failed to initialize: %s" % e
  32     sys.exit(1)
  33
  34
  35 ## !!NOTE!! ##
  36 # It's really important to do this, else you won't see any events
  37 ##
  38 try:
  39     from dbus import DBusException
  40     import dbus.glib
  41 except ImportError, e:
  42     pass
  43
  44 service_type_browsers = {}
  45 service_browsers = {}
  46
  47 def error_msg(msg):
  48     d = gtk.MessageDialog(parent=None, flags=gtk.DIALOG_MODAL,
  49                           type=gtk.MESSAGE_ERROR, buttons=gtk.BUTTONS_OK)
  50     d.set_markup(msg)
  51     d.show_all()
  52     d.run()
  53     d.destroy()
  54
  55 ui_dir = "@interfacesdir@"
  56
  57 service_type_db = avahi.ServiceTypeDatabase.ServiceTypeDatabase()
  58
  59 class Main_window:
  60     def __init__(self, path="avahi-discover.ui", root="main_window", domain=None, **kwargs):
  61         path = os.path.join(ui_dir, path)
  62         gtk.window_set_default_icon_name("network-wired")
  63         self.ui = gtk.Builder()
  64         self.ui.add_from_file(path)
  65         self.ui.connect_signals(self)
  66         self.tree_view = self.ui.get_object("tree_view")
  67         self.info_label = self.ui.get_object("info_label")
  68         self.new()
  69
  70     def on_tree_view_cursor_changed(self, widget, *args):
  71         (model, iter) = widget.get_selection().get_selected()
  72         stype = None
  73         if iter is not None:
  74             (name,interface,protocol,stype,domain) = self.treemodel.get(iter,1,2,3,4,5)
  75         if stype == None:
  76             self.info_label.set_markup(_("<i>No service currently selected.</i>"))
  77             return
  78         #Asynchronous resolving
  79         self.server.ResolveService( int(interface), int(protocol), name, stype, domain, avahi.PROTO_UNSPEC, dbus.UInt32(0), reply_handler=self.service_resolved, error_handler=self.print_error)
  80
  81     def protoname(self,protocol):
  82         if protocol == avahi.PROTO_INET:
  83             return "IPv4"
  84         if protocol == avahi.PROTO_INET6:
  85             return "IPv6"
  86         return "n/a"
  87
  88     def siocgifname(self, interface):
  89         if interface <= 0:
  90             return "n/a"
  91         else:
  92             return self.server.GetNetworkInterfaceNameByIndex(interface)
  93
  94     def get_interface_name(self, interface, protocol):
  95         if interface == avahi.IF_UNSPEC and protocol == avahi.PROTO_UNSPEC:
  96             return "Wide Area"
  97         else:
  98             return str(self.siocgifname(interface)) + " " + str(self.protoname(protocol))
  99
 100     def service_resolved(self, interface, protocol, name, stype, domain, host, aprotocol, address, port, txt, flags):
 101         print "Service data for service '%s' of type '%s' in domain '%s' on %i.%i:" % (name, stype, domain, interface, protocol)
 102
 103         print "\tHost %s (%s), port %i, TXT data: %s" % (host, address, port, str(avahi.txt_array_to_string_array(txt)))
 104
 105         self.update_label(interface, protocol, name, stype, domain, host, aprotocol, address, port, avahi.txt_array_to_string_array(txt))
 106
 107     def print_error(self, err):
 108         error_label = "<b>Error:</b> %s" % (err)
 109         self.info_label.set_markup(error_label)
 110         print "Error:", str(err)
 111
 112     def lookup_type(self, stype):
 113         global service_type_db
 114
 115         try:
 116             return service_type_db[stype]
 117         except KeyError:
 118             return stype
 119
 120     def new_service(self, interface, protocol, name, stype, domain, flags):
 121         print "Found service '%s' of type '%s' in domain '%s' on %i.%i." % (name, stype, domain, interface, protocol)
 122         if self.zc_ifaces.has_key((interface,protocol)) == False:
 123
 124             ifn = self.get_interface_name(interface, protocol)
 125
 126             self.zc_ifaces[(interface,protocol)] = self.insert_row(self.treemodel, None, ifn, None,interface,protocol,None,domain)
 127         if self.zc_domains.has_key((interface,protocol,domain)) == False:
 128             self.zc_domains[(interface,protocol,domain)] = self.insert_row(self.treemodel, self.zc_ifaces[(interface,protocol)], domain,None,interface,protocol,None,domain)
 129         if self.zc_types.has_key((interface,protocol,stype,domain)) == False:
 130             thisDomain = self.zc_domains[(interface,protocol,domain)]
 131             self.zc_types[(interface,protocol,stype,domain)] = self.insert_row(self.treemodel, thisDomain, self.lookup_type(stype), name, interface,None,None,None)
 132         treeiter = self.insert_row(self.treemodel,self.zc_types[(interface,protocol,stype,domain)], name, name, interface,protocol,stype,domain)
 133         self.services_browsed[(interface, protocol, name, stype, domain)] = treeiter
 134         # expand the tree of this path
 135         self.tree_view.expand_to_path(self.treemodel.get_path(treeiter))
 136
 137     def remove_service(self, interface, protocol, name, stype, domain, flags):
 138         print "Service '%s' of type '%s' in domain '%s' on %i.%i disappeared." % (name, stype, domain, interface, protocol)
 139         self.info_label.set_markup("")
 140         treeiter=self.services_browsed[(interface, protocol, name, stype, domain)]
 141         parent = self.treemodel.iter_parent(treeiter)
 142         self.treemodel.remove(treeiter)
 143         del self.services_browsed[(interface, protocol, name, stype, domain)]
 144         if self.treemodel.iter_has_child(parent) == False:
 145             treeiter=self.zc_types[(interface,protocol,stype,domain)]
 146             parent = self.treemodel.iter_parent(treeiter)
 147             self.treemodel.remove(treeiter)
 148             del self.zc_types[(interface,protocol,stype,domain)]
 149             if self.treemodel.iter_has_child(parent) == False:
 150                 treeiter=self.zc_domains[(interface,protocol,domain)]
 151                 parent = self.treemodel.iter_parent(treeiter)
 152                 self.treemodel.remove(treeiter)
 153                 del self.zc_domains[(interface,protocol,domain)]
 154                 if self.treemodel.iter_has_child(parent) == False:
 155                     treeiter=self.zc_ifaces[(interface,protocol)]
 156                     parent = self.treemodel.iter_parent(treeiter)
 157                     self.treemodel.remove(treeiter)
 158                     del self.zc_ifaces[(interface,protocol)]
 159
 160     def new_service_type(self, interface, protocol, stype, domain, flags):
 161         global service_browsers
 162
 163         # Are we already browsing this domain for this type?
 164         if service_browsers.has_key((interface, protocol, stype, domain)):
 165             return
 166
 167         print "Browsing for services of type '%s' in domain '%s' on %i.%i ..." % (stype, domain, interface, protocol)
 168
 169         b = dbus.Interface(self.bus.get_object(avahi.DBUS_NAME, self.server.ServiceBrowserNew(interface, protocol, stype, domain, dbus.UInt32(0))),  avahi.DBUS_INTERFACE_SERVICE_BROWSER)
 170         b.connect_to_signal('ItemNew', self.new_service)
 171         b.connect_to_signal('ItemRemove', self.remove_service)
 172
 173         service_browsers[(interface, protocol, stype, domain)] = b
 174
 175     def browse_domain(self, interface, protocol, domain):
 176         global service_type_browsers
 177
 178         # Are we already browsing this domain?
 179         if service_type_browsers.has_key((interface, protocol, domain)):
 180             return
 181
 182         if self.stype is None:
 183             print "Browsing domain '%s' on %i.%i ..." % (domain, interface, protocol)
 184
 185             try:
 186                 b = dbus.Interface(self.bus.get_object(avahi.DBUS_NAME, self.server.ServiceTypeBrowserNew(interface, protocol, domain, dbus.UInt32(0))),  avahi.DBUS_INTERFACE_SERVICE_TYPE_BROWSER)
 187             except DBusException, e:
 188                 print e
 189                 error_msg("You should check that the avahi daemon is running.\n\nError : %s" % e)
 190                 sys.exit(0)
 191
 192             b.connect_to_signal('ItemNew', self.new_service_type)
 193
 194             service_type_browsers[(interface, protocol, domain)] = b
 195         else:
 196             new_service_type(interface, protocol, stype, domain)
 197
 198     def new_domain(self,interface, protocol, domain, flags):
 199         if self.zc_ifaces.has_key((interface,protocol)) == False:
 200             ifn = self.get_interface_name(interface, protocol)
 201             self.zc_ifaces[(interface,protocol)] = self.insert_row(self.treemodel, None, ifn,None,interface,protocol,None,domain)
 202         if self.zc_domains.has_key((interface,protocol,domain)) == False:
 203             self.zc_domains[(interface,protocol,domain)] = self.insert_row(self.treemodel, self.zc_ifaces[(interface,protocol)], domain,None,interface,protocol,None,domain)
 204         if domain != "local":
 205             self.browse_domain(interface, protocol, domain)
 206
 207     def pair_to_dict(self, l):
 208         res = dict()
 209         for el in l:
 210             if "=" not in el:
 211                 res[el]=''
 212             else:
 213                 tmp = el.split('=',1)
 214                 if len(tmp[0]) > 0:
 215                     res[tmp[0]] = tmp[1]
 216         return res
 217
 218
 219     def update_label(self,interface, protocol, name, stype, domain, host, aprotocol, address, port, txt):
 220         if len(txt) != 0:
 221             txts = ""
 222             txtd = self.pair_to_dict(txt)
 223             for k,v in txtd.items():
 224                 txts+="<b>" + _("TXT") + " <i>%s</i></b> = %s\n" % (k,v)
 225         else:
 226             txts = "<b>" + _("TXT Data:") + "</b> <i>" + _("empty") + "</i>"
 227
 228         infos = "<b>" + _("Service Type:") + "</b> %s\n"
 229         infos += "<b>" + _("Service Name:") + "</b> %s\n"
 230         infos += "<b>" + _("Domain Name:") + "</b> %s\n"
 231         infos += "<b>" + _("Interface:") + "</b> %s %s\n"
 232         infos += "<b>" + _("Address:") + "</b> %s/%s:%i\n%s"
 233         infos = infos % (stype, name, domain, self.siocgifname(interface), self.protoname(protocol), host, address, port, txts.strip())
 234         self.info_label.set_markup(infos)
 235
 236     def insert_row(self, model,parent,
 237                    content, name, interface,protocol,stype,domain):
 238         myiter=model.insert_after(parent,None)
 239         model.set(myiter,0,content,1,name,2,str(interface),3,str(protocol),4,stype,5,domain)
 240         return myiter
 241
 242     def new(self):
 243         self.treemodel=gtk.TreeStore(gobject.TYPE_STRING, gobject.TYPE_STRING, gobject.TYPE_STRING, gobject.TYPE_STRING, gobject.TYPE_STRING, gobject.TYPE_STRING)
 244         self.tree_view.set_model(self.treemodel)
 245
 246         #creating the columns headers
 247         self.tree_view.set_headers_visible(False)
 248         renderer=gtk.CellRendererText()
 249         column=gtk.TreeViewColumn("",renderer, text=0)
 250         column.set_resizable(True)
 251         column.set_sizing("GTK_TREE_VIEW_COLUMN_GROW_ONLY");
 252         column.set_expand(True);
 253         self.tree_view.append_column(column)
 254
 255         self.domain = None
 256         self.stype = None
 257         self.zc_ifaces = {}
 258         self.zc_domains = {}
 259         self.zc_types = {}
 260         self.services_browsed = {}
 261
 262         try:
 263             self.bus = dbus.SystemBus()
 264             self.server = dbus.Interface(self.bus.get_object(avahi.DBUS_NAME, avahi.DBUS_PATH_SERVER), avahi.DBUS_INTERFACE_SERVER)
 265         except Exception, e:
 266             print "Failed to connect to Avahi Server (Is it running?): %s" % e
 267             sys.exit(1)
 268
 269         if self.domain is None:
 270             # Explicitly browse .local
 271             self.browse_domain(avahi.IF_UNSPEC, avahi.PROTO_UNSPEC, "local")
 272
 273             # Browse for other browsable domains
 274             db = dbus.Interface(self.bus.get_object(avahi.DBUS_NAME, self.server.DomainBrowserNew(avahi.IF_UNSPEC, avahi.PROTO_UNSPEC, "", avahi.DOMAIN_BROWSER_BROWSE, dbus.UInt32(0))), avahi.DBUS_INTERFACE_DOMAIN_BROWSER)
 275             db.connect_to_signal('ItemNew', self.new_domain)
 276         else:
 277             # Just browse the domain the user wants us to browse
 278             self.browse_domain(avahi.IF_UNSPEC, avahi.PROTO_UNSPEC, domain)
 279
 280     def gtk_main_quit(self, *args):
 281         gtk.main_quit()
 282
 283 def main():
 284     main_window = Main_window()
 285     gtk.main()
 286
 287 if __name__ == "__main__":
 288     main()