[asterisk-bugs] [JIRA] (ASTERISK-20167) UTF-8 cyrillic characters in voicemail email subject cause subject corruption

[Arcadiy Ivanov (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-20167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=199709#comment-199709 ] 

Arcadiy Ivanov commented on ASTERISK-20167:
-------------------------------------------

Which raises a point - if text volume in headers is not expected to be large or at all significant, base64 it, no matter what, and be done? 33% increase in volume of insignificant amount of text beats having to figure out whether encoding involved is multibyte (to FFFF or to 10FFF?) and trying to arrange for character code alignment.

                
> UTF-8 cyrillic characters in voicemail email subject cause subject corruption
> -----------------------------------------------------------------------------
>
>                 Key: ASTERISK-20167
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20167
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Applications/app_voicemail
>    Affects Versions: 1.8.8.2
>         Environment: Linux myhost.mydomain 2.6.18-308.11.1.el5 #1 SMP Tue Jul 10 08:49:28 EDT 2012 i686 i686 i386 GNU/Linux
> Cent-OS 5.8
>            Reporter: Arcadiy Ivanov
>         Attachments: issueA20167_break_early_for_q_encoding.patch
>
>
> This has been happening ever since 1.4.x.
> ========
> In voicemail.conf:
> emailsubject=[PBX]: Сообщение от ${VM_CALLERID} в ${VM_DATE}
> ========
> The emails arrive with the following subject:
> [PBX]: Сообще�в Monday, July 23, 2012 at 11:45:46 PM
> ========
> The subject should appear as follows:
> [PBX]: Сообщение от "anonymous" <anonymous> в Monday, July 23, 2012 at 11:45:46 PM
> ========
> The raw subject header as it appears in the email message is:
> Subject: =?UTF-8?Q?=5BPBX=5D=3A_=D0=A1=D0=BE=D0=BE=D0=B1=D1=89=D0=B5=D0?=
>  =?UTF-8?Q?=BD=D0=B8=D0=B5_=D0=BE=D1=82_=22anonymous=22_=3Canonymous=3E_?=
>  =?UTF-8?Q?=D0=B2_Monday=2C_July_23=2C_2012_at_11=3A45=3A46_PM?=

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