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      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()
    289