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

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