[Dovecot] APPEND command truncates message
Hi,
I have been debugging a small perl script (see ShowBug2) that I use. In doing so, I think that I may have uncovered a problem with the dovecot IMAP server.
Attached are two packet traces for connections to two different IMAP servers. On both servers I run the script: i.e. I login, select a folder, search for messages and append a message. On the fvs5 server (Courier IMAP?), everything works as expected. However, on the dovecot server, the message that is saved into my mailbox has been truncated at the end of the line containing "26". I attach a copy of the saved message in MessageAsOnIMAPServer.txt.
I hope that this report might be useful. Please let me know if you require any further information.
Chris.
- OK [CAPABILITY IMAP4REV1 LOGIN-REFERRALS AUTH=LOGIN] fvs5 IMAP4rev1 2003.339p-cpanel at Tue, 18 Apr 2006 21:50:06 +0000 (GMT)
1 Login "*******" {7}
- Ready for argument
1 OK [CAPABILITY IMAP4REV1 IDLE NAMESPACE MAILBOX-REFERRALS BINARY UNSELECT SCAN SORT THREAD=REFERENCES THREAD=ORDEREDSUBJECT MULTIAPPEND] User Rodgers authenticated
2 SELECT IT-Lilac
0 EXISTS
NO Trying to get mailbox lock from process 32317
0 RECENT
OK [UIDVALIDITY 1145396966] UID validity status
OK [UIDNEXT 1] Predicted next UID
FLAGS (\Answered \Flagged \Deleted \Draft \Seen)
OK [PERMANENTFLAGS (\* \Answered \Flagged \Deleted \Draft \Seen)] Permanent flags
2 OK [READ-WRITE] SELECT completed
3 UID SEARCH HEADER Subject "lilac gpg message"
- SEARCH
3 OK UID SEARCH completed
4 APPEND IT-Lilac {717}
- Ready for argument
From chris@rodgers.org.uk Tue Apr 18 21:49:09 2006
Return-Path: <chris@rodgers.org.uk>
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for <chris@lilac.home>; Tue, 18 Apr 2006 21:49:08 +0100Received: (from chris@localhost)
by lilac.home (8.13.4/8.13.4/Submit) id k3IKn8Cm004091
for chris; Tue, 18 Apr 2006 21:49:08 +0100Date: Tue, 18 Apr 2006 21:49:08 +0100
From: Chris Rodgers <chris@rodgers.org.uk>
Message-Id: <200604182049.k3IKn8Cm004091@lilac.home>
To: chris@lilac.home
Subject: test
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1 EXISTS
1 RECENT
4 OK APPEND completed
5 LOGOUT
- BYE fvs5.freevirtualservers.com IMAP4rev1 server terminating connection
5 OK LOGOUT completed
- OK dovecot ready.
1 Login "*******" {8}
- OK
1 OK Logged in.
2 SELECT IT-Lilac
FLAGS (\Answered \Flagged \Deleted \Seen \Draft NonJunk Junk)
OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft NonJunk Junk \*)] Flags permitted.
117 EXISTS
1 RECENT
OK [UNSEEN 116] First unseen.
OK [UIDVALIDITY 1136428693] UIDs valid
OK [UIDNEXT 344] Predicted next UID
2 OK [READ-WRITE] Select completed.
3 UID SEARCH HEADER Subject "lilac gpg message"
- SEARCH
3 OK Search completed.
4 APPEND IT-Lilac {717}
- OK
From chris@rodgers.org.uk Tue Apr 18 21:49:09 2006
Return-Path: <chris@rodgers.org.uk>
Received: from lilac.home (localhost.localdomain [127.0.0.1])
by lilac.home (8.13.4/8.13.4) with ESMTP id k3IKn8cK004092
for <chris@lilac.home>; Tue, 18 Apr 2006 21:49:08 +0100Received: (from chris@localhost)
by lilac.home (8.13.4/8.13.4/Submit) id k3IKn8Cm004091
for chris; Tue, 18 Apr 2006 21:49:08 +0100Date: Tue, 18 Apr 2006 21:49:08 +0100
From: Chris Rodgers <chris@rodgers.org.uk>
Message-Id: <200604182049.k3IKn8Cm004091@lilac.home>
To: chris@lilac.home
Subject: test
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118 EXISTS
2 RECENT
4 OK Append completed.
5 LOGOUT
- BYE Logging out
5 OK Logout completed.
From chris@rodgers.org.uk Tue Apr 18 21: 49:09 2006 Return-Path: <chris@rodgers.org.uk> Received: from lilac.home (localhost.localdomain [127.0.0.1]) by lilac.home (8.13.4/8.13.4) with ESMTP id k3IKn8cK004092 for <chris@lilac.home>; Tue, 18 Apr 2006 21:49:08 +0100 Received: (from chris@localhost) by lilac.home (8.13.4/8.13.4/Submit) id k3IKn8Cm004091 for chris; Tue, 18 Apr 2006 21:49:08 +0100 Date: Tue, 18 Apr 2006 21:49:08 +0100 From: Chris Rodgers <chris@rodgers.org.uk> Message-Id: <200604182049.k3IKn8Cm004091@lilac.home> To: chris@lilac.home Subject: test Content-Length: 113 Status: O X-UID: 344 X-Keywords:
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#! /usr/bin/perl use strict;
use Mail::IMAPClient; use Term::ReadPassword;
# Check that username, password and server have been provided
my $Server = "imap.pcl.ox.ac.uk";
my $User = whoami;
chomp $User;
my $Password = read_password('Mail password: ');
my $INBOX = "IT-Lilac";
unless ($Server) { die "You must provide a server!"; } unless ($User) { die "You must provide a user!"; } unless ($Password) { die "You must provide a password!"; }
print "Connecting to $User\@$Server\n\n";
my $IMAP = Mail::IMAPClient -> new (Server => $Server, User => $User, Password => $Password, Debug => 1) or die "Could not connect to your IMAP server, stopping";
if (!$IMAP->IsAuthenticated()) { die "Could not log in to your IMAP server, stopping"; }
$IMAP -> Uid(1); # Use UID's for messages.
$IMAP -> select($INBOX);
my @msgs = $IMAP -> search("HEADER","Subject","lilac gpg message");
my $MessageBody = <<'EOM';
From chris@rodgers.org.uk Tue Apr 18 21:49:09 2006 Return-Path: <chris@rodgers.org.uk> Received: from lilac.home (localhost.localdomain [127.0.0.1]) by lilac.home (8.13.4/8.13.4) with ESMTP id k3IKn8cK004092 for <chris@lilac.home>; Tue, 18 Apr 2006 21:49:08 +0100 Received: (from chris@localhost) by lilac.home (8.13.4/8.13.4/Submit) id k3IKn8Cm004091 for chris; Tue, 18 Apr 2006 21:49:08 +0100 Date: Tue, 18 Apr 2006 21:49:08 +0100 From: Chris Rodgers <chris@rodgers.org.uk> Message-Id: <200604182049.k3IKn8Cm004091@lilac.home> To: chris@lilac.home Subject: test
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EOM
print "Length is: {" . length($MessageBody) . "}";
$IMAP -> append("IT-Lilac",$MessageBody); # BUG: For some reason, we lose a bit of the message!
print "\n";
$IMAP = $IMAP -> disconnect();
exit;
On Tue, 2006-04-18 at 23:12 +0100, Chris Rodgers wrote:
Hi,
I have been debugging a small perl script (see ShowBug2) that I use. In doing so, I think that I may have uncovered a problem with the dovecot IMAP server.
Attached are two packet traces for connections to two different IMAP servers. On both servers I run the script: i.e. I login, select a folder, search for messages and append a message. On the fvs5 server (Courier IMAP?), everything works as expected. However, on the dovecot server, the message that is saved into my mailbox has been truncated at the end of the line containing "26". I attach a copy of the saved message in MessageAsOnIMAPServer.txt.
I hope that this report might be useful. Please let me know if you require any further information.
I finally read your message. Did you figure out the cause of this? I tried the script but it seems to work correctly with me.
Also the captures look like the message was all sent correctly.. They were from the sender's side and not the receiver's, I guess?
If you're still interested in debugging this, getting the captures from receiver's side could show something. Also if you used maildir format instead of mbox does that change anything?
participants (2)
-
Chris Rodgers
-
Timo Sirainen