A NOTE has been added to this issue.
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http://www.dbmail.org/mantis/view.php?id=1020
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Reported By: igorbelykh86
Assigned To:
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Project: DBMail
Issue ID: 1020
Category: IMAP daemon
Reproducibility: always
Severity: minor
Priority: normal
Status: new
target:
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Date Submitted: 17-Aug-13 09:37 CEST
Last Modified: 23-Sep-13 16:58 CEST
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Summary: dbmail 3.1.2. Imap server returns wrong decoded
header fields.
Description:
Hi
After upgrading the dbmail to 3.1.2 the IMAP server has began to return
wrong decoded email headers. I've thought that it does it only for old
emails which were been received before upgrading, but no. New mails have
the problem too. This problem appears only when application try to get a
header field. Example:
CLIENT:
UID FETCH 1017 (BODY.PEEK[HEADER.FIELDS (SUBJECT FROM CC TO)] INTERNALDATE
BODY FLAGS)
SERVER:
* 127 FETCH (INTERNALDATE "16-Aug-2013 21:27:40 +0000" FLAGS (\Seen) UID
1017 BODY (("text" "plain" ("charset" "UTF-8") NIL NIL "base64" 60
1)("text" "html" ("charset" "UTF-8") NIL NIL "base64" 90 2) "alternative")
BODY[HEADER.FIELDS (SUBJECT FROM CC TO)] {98}
From: Igor Belykh <myem...@address.com>
Subject: ????? ??????
To: Igor <anotherem...@address.com>
)
A003 OK UID FETCH completed
The subject is in russian. It is encoded correctly. If get full header of
the message the server returns:
....
Subject: =?UTF-8?B?0J3QvtCy0L7QtSDQv9C40YHRjNC80L4=?=
....
what I can do to always get encoded header fields?
Thanks.
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(0003559) paul (administrator) - 17-Aug-13 10:33
http://www.dbmail.org/mantis/view.php?id=1020#c3559
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Question is: what is in the database? Was it during insertion or during
retrieval that something went wrong.
The message_idnr is 1017 in your case. Try following:
select m.message_idnr,n.headername,v.headervalue from dbmail_header h join
dbmail_headername n on h.headername_id=n.id join dbmail_headervalue v on
h.headervalue_id=v.id join dbmail_physmessage p on p.id=h.physmessage_id
join dbmail_messages m on m.physmessage_id=p.id where m.message_idnr=1017;
This should give you a dump of the cached headers. If your database is
UTF-8 encoded, and your terminal is as well, it should give you nicely
readable values.
Of course, the order of the headers returned is also wrong, but that was
fixed already and will be ok in 3.1.3.
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(0003560) igorbelykh86 (reporter) - 17-Aug-13 13:15
http://www.dbmail.org/mantis/view.php?id=1020#c3560
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Hi Paul,
All data is readable in the database. All tables is utf-8 encoded. And
system (and terminal too) default encoding is en_US.UTF-8.
Any idea?
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(0003561) igorbelykh86 (reporter) - 19-Aug-13 12:02
http://www.dbmail.org/mantis/view.php?id=1020#c3561
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Hi Paul,
I think that the problem is in receiving data from database? I've checked
the mysql server and mysql client settings. Server and client default
character set is utf8 too:
[client]
......
default-character-set=utf8
......
[mysql]
......
default-character-set=utf8
......
[mysqld]
......
collation-server = utf8_unicode_ci
init-connect='SET NAMES utf8'
character-set-server = utf8
......
What do you think what's the problem? Maybe some thing in dbmail settings
or mysql or something else?
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(0003562) jasb (reporter) - 19-Aug-13 12:04
http://www.dbmail.org/mantis/view.php?id=1020#c3562
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The [client] section of my.ini/cnf is for the mysql console client.. not
3rd party software.
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(0003563) igorbelykh86 (reporter) - 19-Aug-13 12:24
http://www.dbmail.org/mantis/view.php?id=1020#c3563
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just tried to comment line "encoding = utf8". Now it works fine.
CLIENT REQUEST:
UID FETCH 1017 (BODY.PEEK[HEADER.FIELDS (SUBJECT FROM CC TO)] INTERNALDATE
BODY FLAGS)
SERVER RESPONSE:
* 127 FETCH (INTERNALDATE "16-Aug-2013 21:27:40 +0000" FLAGS (\Seen) UID
1017 BODY (("text" "plain" ("charset" "UTF-8") NIL NIL "base64" 60
1)("text" "html" ("charset" "UTF-8") NIL NIL "base64" 90 2) "alternative")
BODY[HEADER.FIELDS (SUBJECT FROM CC TO)] {119}
From: Igor Belykh <igorbelyk...@gmail.com>
Subject: =?iso-8859-5?b?vd7S3tUg39jh7Nze?=
To: Igor <i...@zubybox.com>
)
A003 OK UID FETCH completed
How I understand these feader fields are received from source code of the
message.
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(0003564) igorbelykh86 (reporter) - 19-Aug-13 12:29
http://www.dbmail.org/mantis/view.php?id=1020#c3564
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no, in the source code the subject header field is different:
Subject: =?UTF-8?B?0J3QvtCy0L7QtSDQv9C40YHRjNC80L4=?=
So the imap server works fine if the line "encoding = utf8" is commented.
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(0003565) paul (administrator) - 19-Aug-13 12:54
http://www.dbmail.org/mantis/view.php?id=1020#c3565
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the value of the 'encoding' parameter must match the collation of the
database. Apparently your database is not in UTF8.
try:
mysql dbmail
mysql> show variables like 'collation_%';
+----------------------+-------------------+
| Variable_name | Value |
+----------------------+-------------------+
| collation_connection | utf8_general_ci |
| collation_database | koi8r_general_ci |
| collation_server | koi8r_general_ci |
+----------------------+-------------------+
3 rows in set (0.00 sec)
if the collation of the database and connection are *not* the same, you
need to set the encoding of the connection to match the collation of the
database:
mysql> SET NAMES koi8r;
mysql> show variables like 'collation_%';
+----------------------+-------------------+
| Variable_name | Value |
+----------------------+-------------------+
| collation_connection | koi8r_general_ci |
| collation_database | koi8r_general_ci |
| collation_server | koi8r_general_ci |
+----------------------+-------------------+
3 rows in set (0.00 sec)
this means in this example the 'encoding' parameter should be 'koi8r';
Without the encoding paramater, it falls back to your system's default
locale, I syspect.
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(0003566) igorbelykh86 (reporter) - 19-Aug-13 13:07
http://www.dbmail.org/mantis/view.php?id=1020#c3566
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This is result of the query:
mysql> show variables like 'collation_%';
+----------------------+-----------------+
| Variable_name | Value |
+----------------------+-----------------+
| collation_connection | utf8_general_ci |
| collation_database | utf8_general_ci |
| collation_server | utf8_general_ci |
+----------------------+-----------------+
3 rows in set (0.00 sec)
Thus the encoding parameter should be 'utf8'. Right?
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(0003580) igorbelykh86 (reporter) - 21-Sep-13 19:44
http://www.dbmail.org/mantis/view.php?id=1020#c3580
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Hi Paul,
I've found one issue with encoding in data base. There is `sortfield` cell
in the `dbmail_headervalue` table. This cell has utf8_general_ci collation
but in rows I see following:
Привет из РоÑÑии (Hello from
Russia)
instead
Привет из России (Hello from Russia)
But the `headervalue` cell contains the right value in right encoding
Regards,
Igor
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(0003581) Lionel (reporter) - 22-Sep-13 18:07
http://www.dbmail.org/mantis/view.php?id=1020#c3581
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Hi Paul,
The problem is not only with russian characters but with any language that
needs UTF-8 support.
I've done tests with russian, hebrew, arabic and greek characters, they
all have the same issue.
I suspect the problem to be in the place where the sortfield is being
created/processed when there is a new email because the sortfield is not
inserted in the database correctly. The headervalue is inserted correctly,
but not the sortfield. The way the sortfield appears in the database looks
like a typical utf-8 meta tag missing in html. However, I do not know where
in the src files this is handled.
Your input on this in order to fix it is welcomed as I think this is a
major issue for all dbmail users trying to run dbmail 3.x as with this
issue dbmail is totally useless for anyone receiving or sending emails with
characters other than english/dutch.
Thanks.
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(0003582) paul (administrator) - 23-Sep-13 16:44
http://www.dbmail.org/mantis/view.php?id=1020#c3582
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I wonder how does this affect the issue mentioned here, since the sortfield
only affects 'sorting'?
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(0003583) paul (administrator) - 23-Sep-13 16:48
http://www.dbmail.org/mantis/view.php?id=1020#c3583
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can you please provide a simple test message to verify?
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(0003584) Lionel (reporter) - 23-Sep-13 16:49
http://www.dbmail.org/mantis/view.php?id=1020#c3584
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yes you are right. We (me & Igor) figured this out yesterday while looking
at the source files.
However, we did not find a fix for the issue regarding the headers and the
subject that is totally unreadable (???? ???? ??????). Any idea what might
be the issue? or where we should be looking at to try to figure it out?
Thanks.
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(0003585) Lionel (reporter) - 23-Sep-13 16:52
http://www.dbmail.org/mantis/view.php?id=1020#c3585
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just send an email and put in the subject the following: Привет из
России (Hello from Russia)
Same problem as well with hebrew: שלום בעברית (Hello in Hebrew)
In arabic: مرحبا باللغة العربية (Hellow in Arabic)
Thanks.
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(0003586) paul (administrator) - 23-Sep-13 16:57
http://www.dbmail.org/mantis/view.php?id=1020#c3586
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ignore that last message
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(0003587) Lionel (reporter) - 23-Sep-13 16:58
http://www.dbmail.org/mantis/view.php?id=1020#c3587
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If you want to try other languages like chinese or japanese for example,
translate (Hellow in Chinese) with google translate. This issue did not
exist with dbmail 2.x
Issue History
Date Modified Username Field Change
======================================================================
17-Aug-13 09:37 igorbelykh86 New Issue
17-Aug-13 10:33 paul Note Added: 0003559
17-Aug-13 13:15 igorbelykh86 Note Added: 0003560
19-Aug-13 12:02 igorbelykh86 Note Added: 0003561
19-Aug-13 12:04 jasb Note Added: 0003562
19-Aug-13 12:24 igorbelykh86 Note Added: 0003563
19-Aug-13 12:29 igorbelykh86 Note Added: 0003564
19-Aug-13 12:54 paul Note Added: 0003565
19-Aug-13 13:07 igorbelykh86 Note Added: 0003566
21-Sep-13 19:44 igorbelykh86 Note Added: 0003580
22-Sep-13 18:07 Lionel Note Added: 0003581
23-Sep-13 16:44 paul Note Added: 0003582
23-Sep-13 16:48 paul Note Added: 0003583
23-Sep-13 16:49 Lionel Note Added: 0003584
23-Sep-13 16:52 Lionel Note Added: 0003585
23-Sep-13 16:57 paul Note Added: 0003586
23-Sep-13 16:58 Lionel Note Added: 0003587
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