[Emacs-diffs] master 0d38b2f 4/4: Don't mark nnimap articles as read on a server hangup

[Katsumi Yamaoka]

branch: master
commit 0d38b2f403fa873159138b194c0d45bc4c7e61cc
Author: Lars Magne Ingebrigtsen <address@hidden>
Commit: Katsumi Yamaoka <address@hidden>

    Don't mark nnimap articles as read on a server hangup
    
    * lisp/gnus/nnimap.el (nnimap-retrieve-headers): If the server closes 
connection
    during header retrieval, error out instead of interpreting the data in
    the buffer as the only messages there.  This way, we don't mark
    articles as read on a server hangup (bug#19035).
---
 lisp/gnus/ChangeLog |    5 +++++
 lisp/gnus/nnimap.el |    2 ++
 2 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/lisp/gnus/ChangeLog b/lisp/gnus/ChangeLog
index b9ae796..7910d74 100644
--- a/lisp/gnus/ChangeLog
+++ b/lisp/gnus/ChangeLog
@@ -1,5 +1,10 @@
 2015-02-14  Lars Ingebrigtsen  <address@hidden>
 
+       * nnimap.el (nnimap-retrieve-headers): If the server closes connection
+       during header retrieval, error out instead of interpreting the data in
+       the buffer as the only messages there.  This way, we don't mark
+       articles as read on a server hangup (bug#19035).
+
        * mm-decode.el (mm-head-p): New function.
        (mm-display-part): Go to a blank line when inserting parts internally.
 
diff --git a/lisp/gnus/nnimap.el b/lisp/gnus/nnimap.el
index e7f91b7..4a9ca74 100644
--- a/lisp/gnus/nnimap.el
+++ b/lisp/gnus/nnimap.el
@@ -196,6 +196,8 @@ textual parts.")
          (nnimap-article-ranges (gnus-compress-sequence articles))
          (nnimap-header-parameters))
         t)
+       (unless (process-live-p (get-buffer-process (current-buffer)))
+         (error "Server closed connection"))
        (nnimap-transform-headers)
        (nnheader-remove-cr-followed-by-lf))
       (insert-buffer-substring