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From "Andrzej Rusin (JIRA)" <server-...@james.apache.org>
Subject [jira] [Created] (IMAP-374) Client command line length limit is problematic
Date Tue, 23 Apr 2013 12:59:15 GMT
Andrzej Rusin created IMAP-374:
----------------------------------

             Summary: Client command line length limit is problematic
                 Key: IMAP-374
                 URL: https://issues.apache.org/jira/browse/IMAP-374
             Project: James Imap
          Issue Type: Bug
          Components: Protocol
            Reporter: Andrzej Rusin
            Assignee: Eric Charles


I believe (based on some observations) that:

A) maximum client command line length in James IMAP is 8192 as defined in org.apache.james.protocols.netty.AbstractChannelPipelineFactory.MAX_LINE_LENGTH.

B) I do not think that IMAP RFC limits the line length, at least I did not find any reference
of that.

C) James IMAP does not seem to reply with BAD when it sees a too long line.

D) Some clients send quite long lines (I just saw one about 23000 characters and sky is the
limit) and they probably expect some answer, hanging indefinitely.

So:

1. If B is true, then we should not practically really limit in A; or rather the limit should
be really high. And looks like 640K is not enough for everyone anymore ;)

2. Probably C should be fixed.

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