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Charset ks_c_5601-1987 is not supported #436

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donaldpiret opened this issue Sep 26, 2012 · 6 comments
Closed

Charset ks_c_5601-1987 is not supported #436

donaldpiret opened this issue Sep 26, 2012 · 6 comments

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@donaldpiret
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We've been receiving incoming emails with charset "ks_c_5601-1987" (looks to be Korean) that mail chokes on with the following error:

ArgumentError:
       unknown encoding name - ks_c_5601-1987
     # /Users/donald/.rvm/gems/ruby-1.9.3-p194/gems/mail-2.4.4/lib/mail/version_specific/ruby_1_9.rb:56:in `force_encoding'
     # /Users/donald/.rvm/gems/ruby-1.9.3-p194/gems/mail-2.4.4/lib/mail/version_specific/ruby_1_9.rb:56:in `b_value_decode'
     # /Users/donald/.rvm/gems/ruby-1.9.3-p194/gems/mail-2.4.4/lib/mail/encodings.rb:248:in `b_value_decode'
     # /Users/donald/.rvm/gems/ruby-1.9.3-p194/gems/mail-2.4.4/lib/mail/encodings.rb:137:in `block (2 levels) in value_decode'
     # /Users/donald/.rvm/gems/ruby-1.9.3-p194/gems/mail-2.4.4/lib/mail/encodings.rb:130:in `map'
     # /Users/donald/.rvm/gems/ruby-1.9.3-p194/gems/mail-2.4.4/lib/mail/encodings.rb:130:in `block in value_decode'
     # /Users/donald/.rvm/gems/ruby-1.9.3-p194/gems/mail-2.4.4/lib/mail/encodings.rb:122:in `map'
     # /Users/donald/.rvm/gems/ruby-1.9.3-p194/gems/mail-2.4.4/lib/mail/encodings.rb:122:in `value_decode'
     # /Users/donald/.rvm/gems/ruby-1.9.3-p194/gems/mail-2.4.4/lib/mail/encodings.rb:101:in `decode_encode'
     # /Users/donald/.rvm/gems/ruby-1.9.3-p194/gems/mail-2.4.4/lib/mail/fields/unstructured_field.rb:64:in `do_decode'
     # /Users/donald/.rvm/gems/ruby-1.9.3-p194/gems/mail-2.4.4/lib/mail/fields/unstructured_field.rb:46:in `decoded'
     # /Users/donald/.rvm/gems/ruby-1.9.3-p194/gems/mail-2.4.4/lib/mail/fields/unstructured_field.rb:50:in `default'
     # /Users/donald/.rvm/gems/ruby-1.9.3-p194/gems/mail-2.4.4/lib/mail/field.rb:133:in `method_missing'
     # /Users/donald/.rvm/gems/ruby-1.9.3-p194/gems/mail-2.4.4/lib/mail/message.rb:1107:in `default'
     # /Users/donald/.rvm/gems/ruby-1.9.3-p194/gems/mail-2.4.4/lib/mail/message.rb:1042:in `subject'

Here is the content of the email:

Delivered-To: roomorama+1-1-b9e28d94@roomorama.com
Received: by 10.112.31.232 with SMTP id d8csp335407lbi;
        Tue, 25 Sep 2012 01:34:51 -0700 (PDT)
Received: by 10.68.130.194 with SMTP id og2mr27152769pbb.131.1348562089974;
        Tue, 25 Sep 2012 01:34:49 -0700 (PDT)
Return-Path: <hjkim@kimkoo.org>
Received: from sniper.bing.co.kr (mail.bing.co.kr. [211.38.186.2])
        by mx.google.com with ESMTPS id rl8si5249475pbc.292.2012.09.25.01.34.47
        (version=TLSv1/SSLv3 cipher=OTHER);
        Tue, 25 Sep 2012 01:34:49 -0700 (PDT)
Received-SPF: neutral (google.com: 211.38.186.2 is neither permitted nor denied by best guess record for domain of hjkim@kimkoo.org) client-ip=211.38.186.2;
Authentication-Results: mx.google.com; spf=neutral (google.com: 211.38.186.2 is neither permitted nor denied by best guess record for domain of hjkim@kimkoo.org) smtp.mail=hjkim@kimkoo.org
Received: (snipe 5506 invoked by alias); 25 Sep 2012 17:34:38 +0900
Received: from unknown (HELO kimkoosite.kimkooo.local) (192.168.102.4)
    by 10.3.0.250 with SMTP; 25 Sep 2012 17:34:38 +0900
Subject: =?ks_c_5601-1987?B?UkU6IMi4v/i01LKyIEVyc2m01MDMILjevcPB9rimILq4s8K9wLTP?=
    =?ks_c_5601-1987?B?tNku?=
MIME-Version: 1.0
Content-Type: multipart/mixed;
    boundary="----_=_NextPart_001_01CD9AF8.9DBAB545"
Content-class: urn:content-classes:message
Date: Tue, 25 Sep 2012 17:34:45 +0900
X-MimeOLE: Produced By Microsoft Exchange V6.5
Message-ID: <2F2CA0B44216D6429854A4D08B244D9604D322@kimkoosite.kimkooo.local>
X-MS-Has-Attach:
X-MS-TNEF-Correlator: <2F2CA0B44216D6429854A4D08B244D9604D322@kimkoosite.kimkooo.local>
Thread-Topic: =?ks_c_5601-1987?B?yLi/+LTUsrIgRXJzabTUwMwguN69w8H2uKYgurizwr3AtM+02S4=?=
Thread-Index: Ac2aNMUA8IL//1ZlTTOb9hbb8f899QAwgC09
References: <inquiries/751635@roomorama.com> <inquiries/751635/1979946@roomorama.com>
From: =?ks_c_5601-1987?B?seggx/bB+A==?= <hjkim@kimkoo.org>
To: "Roomorama" <roomorama+1-1-b9e28d94@roomorama.com>

This is a multi-part message in MIME format.

------_=_NextPart_001_01CD9AF8.9DBAB545
Content-Type: text/plain;
    charset="ks_c_5601-1987"
Content-Transfer-Encoding: quoted-printable

<snip>

------_=_NextPart_001_01CD9AF8.9DBAB545--
@ochko
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ochko commented Nov 6, 2012

I have got this error too

@radar
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radar commented Nov 16, 2012

It doesn't look like this encoding is supported by Ruby at all (as of 1.9.3p327). This issue could potentially be a Ruby bug.

List of encodings from Encoding.list call:

["ASCII-8BIT", "Big5", "Big5-HKSCS", "Big5-UAO", "CP50220", "CP50221", "CP51932", "CP850", "CP852", "CP855", "CP949", "CP950", "CP951", "EUC-JP", "EUC-KR", "EUC-TW", "Emacs-Mule", "GB12345", "GB18030", "GB1988", "GB2312", "GBK", "IBM437", "IBM737", "IBM775", "IBM852", "IBM855", "IBM857", "IBM860", "IBM861", "IBM862", "IBM863", "IBM864", "IBM865", "IBM866", "IBM869", "ISO-2022-JP", "ISO-2022-JP-2", "ISO-2022-JP-KDDI", "ISO-8859-1", "ISO-8859-10", "ISO-8859-11", "ISO-8859-13", "ISO-8859-14", "ISO-8859-15", "ISO-8859-16", "ISO-8859-2", "ISO-8859-3", "ISO-8859-4", "ISO-8859-5", "ISO-8859-6", "ISO-8859-7", "ISO-8859-8", "ISO-8859-9", "KOI8-R", "KOI8-U", "MacJapanese", "SJIS-DoCoMo", "SJIS-KDDI", "SJIS-SoftBank", "Shift_JIS", "TIS-620", "US-ASCII", "UTF-16", "UTF-16BE", "UTF-16LE", "UTF-32", "UTF-32BE", "UTF-32LE", "UTF-7", "UTF-8", "UTF8-DoCoMo", "UTF8-KDDI", "UTF8-MAC", "UTF8-SoftBank", "Windows-1250", "Windows-1251", "Windows-1252", "Windows-1253", "Windows-1254", "Windows-1255", "Windows-1256", "Windows-1257", "Windows-1258", "Windows-31J", "Windows-874", "eucJP-ms", "macCentEuro", "macCroatian", "macCyrillic", "macGreek", "macIceland", "macRoman", "macRomania", "macThai", "macTurkish", "macUkraine", "stateless-ISO-2022-JP", "stateless-ISO-2022-JP-KDDI"]

@Tony1956
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We've been getting these on another system...probably some webmail client. If it's possible in Ruby, this charset should be mapped to CP949

@jeremy
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jeremy commented Jan 26, 2013

Some backstory: http://lists.kde.org/?l=kde-i18n-doc&m=100396886120761&w=2

Apparently ks_c_5601-1987 can be treated as EUC-KR.

@jeremy jeremy closed this as completed in 88457e6 Jan 27, 2013
@jeremy jeremy mentioned this issue Jan 27, 2013
Closed
@glongman
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glongman commented May 1, 2013

has this been released? We are running 2.5.2 2.5.3 and are having this issue

Edit: (typo) we are running 2.5.3!

@shivamd shivamd mentioned this issue Feb 19, 2015
Open
@jimmysoho
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Just ran into this one too. We are on ruby 2.3.1. The fix was made in Mail::Ruby19 Ruby19.pick_encoding. But it seems this fix is also needed in ruby 2.x.

@seonghobae seonghobae mentioned this issue Jun 20, 2023
Open
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7 participants
@jeremy @radar @ochko @donaldpiret @glongman @jimmysoho @Tony1956