* bug#21043: [PATCH] nnimap.el: make capability parsing more robust.
@ 2015-07-13 1:52 Nikolaus Rath
2015-07-13 5:35 ` Eric Abrahamsen
0 siblings, 1 reply; 7+ messages in thread
From: Nikolaus Rath @ 2015-07-13 1:52 UTC (permalink / raw
To: 21043; +Cc: eric, ding, emacs-devel
Package: gnus
Tags: patch
Hello,
Currently Gnus relies on the server supplying the capabilities in its
response to the LOGIN command, e.g. like this:
* CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE
SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT
MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS
LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES
WITHIN CONTEXT=SEARCH LIST-STATUS SPECIAL-USE BINARY MOVE SEARCH=FUZZY
QUOTA\r\n
1 OK Logged in\r\n
However, this assumption breaks if the server doesn't return the
capabilities automatically, or if he returns them as part of the OK
response, e.g.:
160 OK [CAPABILITY IMAP4rev1 LITERAL+ ID ENABLE ACL RIGHTS=kxten
QUOTA MAILBOX-REFERRALS NAMESPACE UIDPLUS NO_ATOMIC_RENAME UNSELECT
CHILDREN MULTIAPPEND BINARY CATENATE CONDSTORE ESEARCH SEARCH=FUZZY
SORT SORT=MODSEQ SORT=DISPLAY SORT=UID THREAD=ORDEREDSUBJECT
THREAD=REFERENCES ANNOTATEMORE ANNOTATE-EXPERIMENT-1 METADATA
LIST-EXTENDED LIST-STATUS LIST-MYRIGHTS LIST-METADATA WITHIN QRESYNC
SCAN XLIST XMOVE MOVE SPECIAL-USE CREATE-SPECIAL-USE DIGEST=SHA1
X-REPLICATION LOGINDISABLED XCONVERSATIONS COMPRESS=DEFLATE
X-QUOTA=STORAGE X-QUOTA=MESSAGE X-QUOTA=X-ANNOTATION-STORAGE
X-QUOTA=X-NUM-FOLDERS IDLE] User logged in
SESSIONID=<sloti32d1t18-237747-1436749914-1-18339819756817078727>\r\n
Currently, in this situation Gnus just keeps re-using the pre-LOGIN
capabilities (and thus does not take advantage of any additional
features).
The attached patch fixes this issue by explicitly asking the server for
its capabilities after login.
Thanks for considering,
-Nikolaus
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^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: bug#21043: [PATCH] nnimap.el: make capability parsing more robust.
2015-07-13 1:52 bug#21043: [PATCH] nnimap.el: make capability parsing more robust Nikolaus Rath
@ 2015-07-13 5:35 ` Eric Abrahamsen
2015-07-13 19:00 ` Nikolaus Rath
0 siblings, 1 reply; 7+ messages in thread
From: Eric Abrahamsen @ 2015-07-13 5:35 UTC (permalink / raw
To: emacs-devel; +Cc: ding
Nikolaus Rath <Nikolaus@rath.org> writes:
> Package: gnus
> Tags: patch
There was no patch!
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: bug#21043: [PATCH] nnimap.el: make capability parsing more robust.
2015-07-13 5:35 ` Eric Abrahamsen
@ 2015-07-13 19:00 ` Nikolaus Rath
2015-07-13 19:21 ` Lars Magne Ingebrigtsen
2015-07-13 19:24 ` Lars Magne Ingebrigtsen
0 siblings, 2 replies; 7+ messages in thread
From: Nikolaus Rath @ 2015-07-13 19:00 UTC (permalink / raw
To: Eric Abrahamsen; +Cc: 21043, ding, emacs-devel
[-- Attachment #1: Type: text/plain, Size: 399 bytes --]
On Jul 13 2015, Eric Abrahamsen <eric@ericabrahamsen.net> wrote:
> Nikolaus Rath <Nikolaus@rath.org> writes:
>
>> Package: gnus
>> Tags: patch
>
> There was no patch!
Oops. Here it is.
--
GPG encrypted emails preferred. Key id: 0xD113FCAC3C4E599F
Fingerprint: ED31 791B 2C5C 1613 AF38 8B8A D113 FCAC 3C4E 599F
»Time flies like an arrow, fruit flies like a Banana.«
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: 0001-nnimap.el-make-capability-parsing-more-robust.patch --]
[-- Type: text/x-diff, Size: 1532 bytes --]
From 241812047dedb1ba7d362c4211a06bf506d37237 Mon Sep 17 00:00:00 2001
From: Nikolaus Rath <Nikolaus@rath.org>
Date: Sun, 12 Jul 2015 18:42:48 -0700
Subject: [PATCH] nnimap.el: make capability parsing more robust.
* lisp/nnimap.el (nnimap-open-connection-1): explicitly ask server for
capabilities instead of relying on LOGIN response.
---
lisp/ChangeLog | 5 +++++
lisp/nnimap.el | 2 +-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index d8ab42e..83ac4c4 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,5 +1,10 @@
2015-07-12 Nikolaus Rath <Nikolaus@rath.org>
+ * nnimap.el (nnimap-open-connection-1): explicitly ask server for
+ capabilities instead of relying on LOGIN response.
+
+2015-07-12 Nikolaus Rath <Nikolaus@rath.org>
+
* nnimap.el (nnimap-request-group-scan)
(nnimap-request-create-group, nnimap-request-delete-group)
(nnimap-request-rename-group, nnimap-request-move-article)
diff --git a/lisp/nnimap.el b/lisp/nnimap.el
index d11b3a2..19632ad 100644
--- a/lisp/nnimap.el
+++ b/lisp/nnimap.el
@@ -520,7 +520,7 @@ If non-nil, articles flagged as deleted (using the IMAP
(funcall (nth 2 credentials)))
;; See if CAPABILITY is set as part of login
;; response.
- (dolist (response (cddr login-result))
+ (dolist (response (cddr (nnimap-command "CAPABILITY")))
(when (string= "CAPABILITY" (upcase (car response)))
(setf (nnimap-capabilities nnimap-object)
(mapcar #'upcase (cdr response))))))
--
2.1.4
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: bug#21043: [PATCH] nnimap.el: make capability parsing more robust.
2015-07-13 19:00 ` Nikolaus Rath
@ 2015-07-13 19:21 ` Lars Magne Ingebrigtsen
2015-07-14 0:37 ` Nikolaus Rath
2015-07-13 19:24 ` Lars Magne Ingebrigtsen
1 sibling, 1 reply; 7+ messages in thread
From: Lars Magne Ingebrigtsen @ 2015-07-13 19:21 UTC (permalink / raw
To: Eric Abrahamsen; +Cc: 21043, ding, emacs-devel
Nikolaus Rath <Nikolaus@rath.org> writes:
> - (dolist (response (cddr login-result))
> + (dolist (response (cddr (nnimap-command "CAPABILITY")))
That'll be an extra round trip when logging in...
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: bug#21043: [PATCH] nnimap.el: make capability parsing more robust.
2015-07-13 19:00 ` Nikolaus Rath
2015-07-13 19:21 ` Lars Magne Ingebrigtsen
@ 2015-07-13 19:24 ` Lars Magne Ingebrigtsen
2015-07-14 0:36 ` Nikolaus Rath
1 sibling, 1 reply; 7+ messages in thread
From: Lars Magne Ingebrigtsen @ 2015-07-13 19:24 UTC (permalink / raw
To: Eric Abrahamsen; +Cc: 21043, ding, emacs-devel
Nikolaus Rath <Nikolaus@rath.org> writes:
> Subject: [PATCH] nnimap.el: make capability parsing more robust.
[...]
> - (dolist (response (cddr login-result))
> + (dolist (response (cddr (nnimap-command "CAPABILITY")))
And we've already issued the CAPABILITY command in the
`open-protocol-stream' call, so if the results of that isn't in
`login-results', there's a bug in `open-protocol-stream'.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: bug#21043: [PATCH] nnimap.el: make capability parsing more robust.
2015-07-13 19:24 ` Lars Magne Ingebrigtsen
@ 2015-07-14 0:36 ` Nikolaus Rath
0 siblings, 0 replies; 7+ messages in thread
From: Nikolaus Rath @ 2015-07-14 0:36 UTC (permalink / raw
To: Lars Magne Ingebrigtsen; +Cc: Eric Abrahamsen, 21043, ding, emacs-devel
On Jul 13 2015, Lars Magne Ingebrigtsen <larsi@gnus.org> wrote:
> Nikolaus Rath <Nikolaus@rath.org> writes:
>
>> Subject: [PATCH] nnimap.el: make capability parsing more robust.
>
> [...]
>
>> - (dolist (response (cddr login-result))
>> + (dolist (response (cddr (nnimap-command "CAPABILITY")))
>
> And we've already issued the CAPABILITY command in the
> `open-protocol-stream' call, so if the results of that isn't in
> `login-results', there's a bug in `open-protocol-stream'.
No. The results of the CAPABILITY command before login may be different
than after login.
Best,
-Nikolaus
--
GPG encrypted emails preferred. Key id: 0xD113FCAC3C4E599F
Fingerprint: ED31 791B 2C5C 1613 AF38 8B8A D113 FCAC 3C4E 599F
»Time flies like an arrow, fruit flies like a Banana.«
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: bug#21043: [PATCH] nnimap.el: make capability parsing more robust.
2015-07-13 19:21 ` Lars Magne Ingebrigtsen
@ 2015-07-14 0:37 ` Nikolaus Rath
0 siblings, 0 replies; 7+ messages in thread
From: Nikolaus Rath @ 2015-07-14 0:37 UTC (permalink / raw
To: Lars Magne Ingebrigtsen; +Cc: Eric Abrahamsen, 21043, ding, emacs-devel
On Jul 13 2015, Lars Magne Ingebrigtsen <larsi@gnus.org> wrote:
> Nikolaus Rath <Nikolaus@rath.org> writes:
>
>> - (dolist (response (cddr login-result))
>> + (dolist (response (cddr (nnimap-command "CAPABILITY")))
>
> That'll be an extra round trip when logging in...
Yes. But that's not exactly a critical path, is it?
Best,
-Nikolaus
--
GPG encrypted emails preferred. Key id: 0xD113FCAC3C4E599F
Fingerprint: ED31 791B 2C5C 1613 AF38 8B8A D113 FCAC 3C4E 599F
»Time flies like an arrow, fruit flies like a Banana.«
^ permalink raw reply [flat|nested] 7+ messages in thread
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2015-07-13 1:52 bug#21043: [PATCH] nnimap.el: make capability parsing more robust Nikolaus Rath
2015-07-13 5:35 ` Eric Abrahamsen
2015-07-13 19:00 ` Nikolaus Rath
2015-07-13 19:21 ` Lars Magne Ingebrigtsen
2015-07-14 0:37 ` Nikolaus Rath
2015-07-13 19:24 ` Lars Magne Ingebrigtsen
2015-07-14 0:36 ` Nikolaus Rath
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