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imap does not support PREAUTH #1818

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nmorey opened this issue Aug 22, 2017 · 1 comment
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imap does not support PREAUTH #1818

nmorey opened this issue Aug 22, 2017 · 1 comment
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@nmorey
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@nmorey nmorey commented Aug 22, 2017

I'm working on tunneling support for git imap-send (run curl through a preopened socket using
CURLOPT_OPENSOCKETFUNCTION and CURLOPT_SOCKOPTFUNCTION.

The command to open the socket (stdin/stdout) during testing is this one

ssh -q -C localhost /usr/sbin/imapd ./Maildir

It returns:

* PREAUTH [CAPABILITY IMAP4REV1 I18NLEVEL=1 LITERAL+ IDLE UIDPLUS NAMESPACE CHILDREN MAILBOX-REFERRALS BINARY UNSELECT ESEARCH WITHIN SCAN SORT THREAD=REFERENCES THREAD=ORDEREDSUBJECT MULTIAPPEND] Pre-authenticated user [...]

This is not supported by curl although part of the IMAP RFC.
@bagder bagder added the IMAP label Aug 22, 2017
bagder added a commit that referenced this issue Aug 22, 2017
@bagder
imap: support PREAUTH
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bagder Daniel Stenberg
GPG key ID: 5CC908FDB71E12C2 Learn about vigilant mode.
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a48f4be 
It is a defined possible greeting at server startup that means the
connection is already authenticated. See
https://tools.ietf.org/html/rfc3501#section-7.1.4

Test 846 added to verify.

Fixes #1818
@bagder bagder mentioned this issue Aug 22, 2017
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@bagder bagder commented Aug 22, 2017

PR #1820 implements a first shot at this, a very basic support of PREAUTH.
bagder added a commit that referenced this issue Aug 23, 2017
@bagder
imap: support PREAUTH
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This commit was signed with the committer’s verified signature.
bagder Daniel Stenberg
GPG key ID: 5CC908FDB71E12C2 Learn about vigilant mode.
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d64a19b 
It is a defined possible greeting at server startup that means the
connection is already authenticated. See
https://tools.ietf.org/html/rfc3501#section-7.1.4

Test 846 added to verify.

Fixes #1818
@bagder bagder closed this in befaa7b Aug 23, 2017
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@nmorey @bagder