python/samba/netcmd: misc PY2/PY3 compat changes for gpo.py

Fixes:
1) various ldb.bytes that should be displayed as strings in PY3
2) sorting of lists of xml Element in PY3
3) various 'open' need to be opened in binary mode (to accept binary
   data)

Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>

python/samba/netcmd/gpo.py

@@ -212,7 +212,7 @@ def del_gpo_link(samdb, container_dn, gpo):
     found = False
     gpo_dn = str(get_gpo_dn(samdb, gpo))
     if 'gPLink' in msg:
-        gplist = parse_gplink(msg['gPLink'][0])
+        gplist = parse_gplink(str(msg['gPLink'][0]))
         for g in gplist:
             if g['dn'].lower() == gpo_dn.lower():
                 gplist.remove(g)
@@ -284,7 +284,7 @@ def backup_directory_remote_to_local(conn, remotedir, localdir):
         l_dir = l_dirs.pop()
 
         dirlist = conn.list(r_dir, attribs=attr_flags)
-        dirlist.sort()
+        dirlist.sort(key=lambda x : x['name'])
         for e in dirlist:
             r_name = r_dir + '\\' + e['name']
             l_name = os.path.join(l_dir, e['name'])
@@ -295,7 +295,7 @@ def backup_directory_remote_to_local(conn, remotedir, localdir):
                 os.mkdir(l_name)
             else:
                 data = conn.loadfile(r_name)
-                with open(l_name + SUFFIX, 'w') as f:
+                with open(l_name + SUFFIX, 'wb') as f:
                     f.write(data)
 
                 parser = find_parser(e['name'])
@@ -319,7 +319,7 @@ def copy_directory_remote_to_local(conn, remotedir, localdir):
         l_dir = l_dirs.pop()
 
         dirlist = conn.list(r_dir, attribs=attr_flags)
-        dirlist.sort()
+        dirlist.sort(key=lambda x : x['name'])
         for e in dirlist:
             r_name = r_dir + '\\' + e['name']
             l_name = os.path.join(l_dir, e['name'])
@@ -330,7 +330,7 @@ def copy_directory_remote_to_local(conn, remotedir, localdir):
                 os.mkdir(l_name)
             else:
                 data = conn.loadfile(r_name)
-                open(l_name, 'w').write(data)
+                open(l_name, 'wb').write(data)
 
 
 def copy_directory_local_to_remote(conn, localdir, remotedir,
@@ -358,7 +358,7 @@ def copy_directory_local_to_remote(conn, localdir, remotedir,
                     if not ignore_existing:
                         raise
             else:
-                data = open(l_name, 'r').read()
+                data = open(l_name, 'rb').read()
                 conn.savefile(r_name, data)
 
 
@@ -467,7 +467,7 @@ class cmd_list(Command):
         while True:
             msg = self.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=['gPLink', 'gPOptions'])[0]
             if 'gPLink' in msg:
-                glist = parse_gplink(msg['gPLink'][0])
+                glist = parse_gplink(str(msg['gPLink'][0]))
                 for g in glist:
                     if not inherit and not (g['options'] & dsdb.GPLINK_OPT_ENFORCE):
                         continue
@@ -609,7 +609,7 @@ class cmd_getlink(Command):
 
         if msg['gPLink']:
             self.outf.write("GPO(s) linked to DN %s\n" % container_dn)
-            gplist = parse_gplink(msg['gPLink'][0])
+            gplist = parse_gplink(str(msg['gPLink'][0]))
             for g in gplist:
                 msg = get_gpo_info(self.samdb, dn=g['dn'])
                 self.outf.write("    GPO     : %s\n" % msg[0]['name'][0])
@@ -675,7 +675,7 @@ class cmd_setlink(Command):
         # Update existing GPlinks or Add new one
         existing_gplink = False
         if 'gPLink' in msg:
-            gplist = parse_gplink(msg['gPLink'][0])
+            gplist = parse_gplink(str(msg['gPLink'][0]))
             existing_gplink = True
             found = False
             for g in gplist:
@@ -921,7 +921,7 @@ class cmd_fetch(Command):
             raise CommandError("GPO '%s' does not exist" % gpo)
 
         # verify UNC path
-        unc = msg['gPCFileSysPath'][0]
+        unc = str(msg['gPCFileSysPath'][0])
         try:
             [dom_name, service, sharepath] = parse_unc(unc)
         except ValueError:
@@ -1003,7 +1003,7 @@ class cmd_backup(Command):
             raise CommandError("GPO '%s' does not exist" % gpo)
 
         # verify UNC path
-        unc = msg['gPCFileSysPath'][0]
+        unc = str(msg['gPCFileSysPath'][0])
         try:
             [dom_name, service, sharepath] = parse_unc(unc)
         except ValueError:
@@ -1445,7 +1445,7 @@ class cmd_del(Command):
         # Check if valid GPO
         try:
             msg = get_gpo_info(self.samdb, gpo=gpo)[0]
-            unc_path = msg['gPCFileSysPath'][0]
+            unc_path = str(msg['gPCFileSysPath'][0])
         except Exception:
             raise CommandError("GPO '%s' does not exist" % gpo)
 
@@ -1522,7 +1522,7 @@ class cmd_aclcheck(Command):
 
         for m in msg:
             # verify UNC path
-            unc = m['gPCFileSysPath'][0]
+            unc = str(m['gPCFileSysPath'][0])
             try:
                 [dom_name, service, sharepath] = parse_unc(unc)
             except ValueError: