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1import FrameWork
2import EasyDialogs
3from Carbon import Res
4from Carbon import Dlg
5import socket
6import string
7import macresource
8#
9# Definitions for our resources
10ID_MAIN=512
11ID_ABOUT=513
12
13ITEM_LOOKUP_ENTRY=1
14ITEM_RESULT=2
15ITEM_LOOKUP_BUTTON=3
16
17def main():
18    macresource.need("DLOG", ID_MAIN, "dnslookup-2.rsrc")
19    DNSLookup()
20
21class DNSLookup(FrameWork.Application):
22    "Application class for DNS Lookup"
23
24    def __init__(self):
25        # First init menus, etc.
26        FrameWork.Application.__init__(self)
27        # Next create our dialog
28        self.main_dialog = MyDialog(self)
29        # Now open the dialog
30        self.main_dialog.open(ID_MAIN)
31        # Finally, go into the event loop
32        self.mainloop()
33
34    def makeusermenus(self):
35        self.filemenu = m = FrameWork.Menu(self.menubar, "File")
36        self.quititem = FrameWork.MenuItem(m, "Quit", "Q", self.quit)
37
38    def quit(self, *args):
39        self._quit()
40
41    def do_about(self, *args):
42        f = Dlg.GetNewDialog(ID_ABOUT, -1)
43        while 1:
44            n = Dlg.ModalDialog(None)
45            if n == 1:
46                return
47
48class MyDialog(FrameWork.DialogWindow):
49    "Main dialog window for DNSLookup"
50    def __init__(self, parent):
51        FrameWork.DialogWindow.__init__(self, parent)
52        self.parent = parent
53
54    def do_itemhit(self, item, event):
55        if item == ITEM_LOOKUP_BUTTON:
56            self.dolookup()
57
58    def dolookup(self):
59        """Get text entered in the lookup entry area.  Place result of the
60           call to dnslookup in the result entry area."""
61        tp, h, rect = self.dlg.GetDialogItem(ITEM_LOOKUP_ENTRY)
62        txt = Dlg.GetDialogItemText(h)
63
64        tp, h, rect = self.dlg.GetDialogItem(ITEM_RESULT)
65        Dlg.SetDialogItemText(h, self.dnslookup(txt))
66
67    def dnslookup(self, str):
68        """ Perform DNS lookup on str.  If first character of digit is numeric,
69            assume that str contains an IP address.  Otherwise, assume that str
70            contains a hostname."""
71        if str == '': str = ' '
72        if str[0] in string.digits:
73            try:
74                value = socket.gethostbyaddr(str)[0]
75            except:
76                value = 'Lookup failed'
77        else:
78            try:
79                value = socket.gethostbyname(str)
80            except:
81                value = 'Lookup failed'
82        return value
83
84
85main()
86