Bugfix patch for offlineimap

Hello John,

i fixed some tiny bugs in offlineimap, mainly just for myself. They are
more dirty fixes than real bugfixes since I'm missing the deeper insight
into the code.
Especially the first one for Curses.py is very dirty and breaks the
scaling of the interface when the terminal size changes, but at least
the terminal is in proper state after exiting offlineimap.

In the order of appearance in the patchfile:
1. 'fixes' terminal breakage on quit of curses interface in python 2.6
to 2.6.5 (fixed since 2.6.6 http://bugs.python.org/issue7567)
2. fixes netrc password authentication
3. fixes user name querying from netrc

The patch is made for git revision 6b1cb5e036

Thanks a lot for the great application!

Best regards,
buergi

offlineimap/imapserver.py

@@ -176,7 +176,7 @@ class IMAPServer:
         challenge = response.strip()
         ui.debug('imap', 'md5handler: got challenge %s' % challenge)
 
-        passwd = self.getpassword()
+        passwd = self.repos.getpassword()
         retval = self.username + ' ' + hmac.new(passwd, challenge).hexdigest()
         ui.debug('imap', 'md5handler: returning %s' % retval)
         return retval
@@ -184,7 +184,7 @@ class IMAPServer:
     def plainauth(self, imapobj):
         UIBase.getglobalui().debug('imap',
                                    'Attempting plain authentication')
-        imapobj.login(self.username, self.getpassword())
+        imapobj.login(self.username, self.repos.getpassword())
 
     def gssauth(self, response):
         data = base64.b64encode(response)

offlineimap/repository/IMAP.py

@@ -109,7 +109,7 @@ class IMAPRepository(BaseRepository):
             return user
 
         try:
-            netrcentry = netrc.netrc().authentificator(self.gethost())
+            netrcentry = netrc.netrc().authenticators(self.gethost())
         except IOError, inst:
             if inst.errno != errno.ENOENT:
                 raise
@@ -118,7 +118,7 @@ class IMAPRepository(BaseRepository):
                 return netrcentry[0]
 
         try:
-            netrcentry = netrc.netrc('/etc/netrc').authentificator(self.gethost())
+            netrcentry = netrc.netrc('/etc/netrc').authenticators(self.gethost())
         except IOError, inst:
             if inst.errno != errno.ENOENT:
                 raise

offlineimap/ui/Curses.py

@@ -122,6 +122,8 @@ class CursesUtil:
         del self.stdscr
 
     def reset(self):
+        # dirty walkaround for bug http://bugs.python.org/issue7567 in python 2.6 to 2.6.5 (fixed since #83743)
+        if (sys.version_info[0:3] >= (2,6) and  sys.version_info[0:3] <= (2,6,5)): return
         self.stop()
         self.start()