Import Upstream version 2.7.18

Mac/Demo/example2/dnslookup-2.py

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+import FrameWork
+import EasyDialogs
+from Carbon import Res
+from Carbon import Dlg
+import socket
+import string
+import macresource
+#
+# Definitions for our resources
+ID_MAIN=512
+ID_ABOUT=513
+
+ITEM_LOOKUP_ENTRY=1
+ITEM_RESULT=2
+ITEM_LOOKUP_BUTTON=3
+
+def main():
+    macresource.need("DLOG", ID_MAIN, "dnslookup-2.rsrc")
+    DNSLookup()
+
+class DNSLookup(FrameWork.Application):
+    "Application class for DNS Lookup"
+
+    def __init__(self):
+        # First init menus, etc.
+        FrameWork.Application.__init__(self)
+        # Next create our dialog
+        self.main_dialog = MyDialog(self)
+        # Now open the dialog
+        self.main_dialog.open(ID_MAIN)
+        # Finally, go into the event loop
+        self.mainloop()
+
+    def makeusermenus(self):
+        self.filemenu = m = FrameWork.Menu(self.menubar, "File")
+        self.quititem = FrameWork.MenuItem(m, "Quit", "Q", self.quit)
+
+    def quit(self, *args):
+        self._quit()
+
+    def do_about(self, *args):
+        f = Dlg.GetNewDialog(ID_ABOUT, -1)
+        while 1:
+            n = Dlg.ModalDialog(None)
+            if n == 1:
+                return
+
+class MyDialog(FrameWork.DialogWindow):
+    "Main dialog window for DNSLookup"
+    def __init__(self, parent):
+        FrameWork.DialogWindow.__init__(self, parent)
+        self.parent = parent
+
+    def do_itemhit(self, item, event):
+        if item == ITEM_LOOKUP_BUTTON:
+            self.dolookup()
+
+    def dolookup(self):
+        """Get text entered in the lookup entry area.  Place result of the
+           call to dnslookup in the result entry area."""
+        tp, h, rect = self.dlg.GetDialogItem(ITEM_LOOKUP_ENTRY)
+        txt = Dlg.GetDialogItemText(h)
+
+        tp, h, rect = self.dlg.GetDialogItem(ITEM_RESULT)
+        Dlg.SetDialogItemText(h, self.dnslookup(txt))
+
+    def dnslookup(self, str):
+        """ Perform DNS lookup on str.  If first character of digit is numeric,
+            assume that str contains an IP address.  Otherwise, assume that str
+            contains a hostname."""
+        if str == '': str = ' '
+        if str[0] in string.digits:
+            try:
+                value = socket.gethostbyaddr(str)[0]
+            except:
+                value = 'Lookup failed'
+        else:
+            try:
+                value = socket.gethostbyname(str)
+            except:
+                value = 'Lookup failed'
+        return value
+
+
+main()