fix inaccurate UI messages when some messages are excluded from the cached lists

Some messages were excluded from the copy/delete list after the UI message said
they were copied/deleted.
Also fix Internaldate2epoch(), which was wrong.

Signed-off-by: Janna Martl <janna.martl109@gmail.com>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>

offlineimap/folder/Base.py

@@ -365,6 +365,7 @@ class BaseFolder(object):
         dryrun mode."""
 
         for uid in uidlist:
+            if self.uidexists(uid):
                 self.addmessageflags(uid, flags)
 
     def deletemessageflags(self, uid, flags):
@@ -695,11 +696,6 @@ class BaseFolder(object):
                 content = self.getmessage(uid)
                 rtime = emailutil.get_message_date(content, 'Date')
 
-            if uid > 0 and dstfolder.uidexists(uid):
-                # dst has message with that UID already, only update status
-                statusfolder.savemessage(uid, None, flags, rtime)
-                return
-
             # If any of the destinations actually stores the message body,
             # load it up.
             if dstfolder.storesmessages():
@@ -766,6 +762,16 @@ class BaseFolder(object):
             # bail out on CTRL-C or SIGTERM
             if offlineimap.accounts.Account.abort_NOW_signal.is_set():
                 break
+            if uid > 0 and dstfolder.uidexists(uid):
+                # dst has message with that UID already, only update status
+                flags = self.getmessageflags(uid)
+                rtime = self.getmessagetime(uid)
+                if dstfolder.utime_from_message:
+                    content = self.getmessage(uid)
+                    rtime = emailutil.get_message_date(content, 'Date')
+                statusfolder.savemessage(uid, None, flags, rtime)
+                copylist.remove(uid)
+
             self.ui.copyingmessage(uid, num+1, num_to_copy, self, dstfolder)
             # exceptions are caught in copymessageto()
             if self.suggeststhreads() and not globals.options.singlethreading:
@@ -790,19 +796,24 @@ class BaseFolder(object):
         that were deleted in 'self'. Delete those from dstfolder and
         statusfolder.
 
-        This function checks and protects us from action in ryrun mode.
+        This function checks and protects us from action in dryrun mode.
         """
 
         deletelist = filter(lambda uid: uid >= 0 and not
             self.uidexists(uid), statusfolder.getmessageuidlist())
+        if len(deletelist):
+            # Delete in statusfolder first to play safe. In case of abort, we
+            # won't lose message, we will just unneccessarily retransmit some.
+            # Delete messages from statusfolder that were either deleted by the
+            # user, or not being tracked (e.g. because of maxage).
+            statusfolder.deletemessages(deletelist)
+            # Filter out untracked messages
+            deletelist = filter(lambda uid: dstfolder.uidexists(uid), deletelist)
             if len(deletelist):
                 self.ui.deletingmessages(deletelist, [dstfolder])
                 if self.repository.account.dryrun:
                     return #don't delete messages in dry-run mode
-            # delete in statusfolder first to play safe. In case of abort, we
+                dstfolder.deletemessages(deletelist)
-            # won't lose message, we will just retransmit some unneccessary.
-            for folder in [statusfolder, dstfolder]:
-                folder.deletemessages(deletelist)
 
     def __syncmessagesto_flags(self, dstfolder, statusfolder):
         """Pass 3: Flag synchronization.

offlineimap/folder/IMAP.py

@@ -836,8 +836,6 @@ class IMAPFolder(BaseFolder):
         self.__deletemessages_noconvert(uidlist)
 
     def __deletemessages_noconvert(self, uidlist):
-        # Weed out ones not in self.messagelist
-        uidlist = [uid for uid in uidlist if self.uidexists(uid)]
         if not len(uidlist):
             return
 

offlineimap/folder/Maildir.py

@@ -439,9 +439,6 @@ class MaildirFolder(BaseFolder):
         :return: Nothing, or an Exception if UID but no corresponding file
                  found.
         """
-        if not self.uidexists(uid):
-            return
-
         filename = self.messagelist[uid]['filename']
         filepath = os.path.join(self.getfullname(), filename)
         try:

offlineimap/imaplibutil.py

@@ -222,6 +222,8 @@ def Internaldate2epoch(resp):
 
     Returns seconds since the epoch."""
 
+    from calendar import timegm
+
     mo = InternalDate.match(resp)
     if not mo:
         return None
@@ -245,4 +247,4 @@ def Internaldate2epoch(resp):
 
     tt = (year, mon, day, hour, min, sec, -1, -1, -1)
 
-    return time.mktime(tt)
+    return timegm(tt) - zone