#44570 [Opn]: mb_encode_mimeheader incorrectly folds iso-2022 text
| From: | tokul at users dot sourceforge dot net | Date: | Sun, 30 Mar 2008 12:45:55 +0000 |
| Subject: | #44570 [Opn]: mb_encode_mimeheader incorrectly folds iso-2022 text | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-123781@lists.php.net to get a copy of this message | ||
ID: 44570
User updated by: tokul at users dot sourceforge dot net
Reported By: tokul at users dot sourceforge dot net
Status: Open
Bug Type: mbstring related
Operating System: Linux Debian Etch
PHP Version: 5.2CVS-2008-03-30 (snap)
New Comment:
If mbstring.internal_encoding is set, code does not need
mb_convert_encoding() call.
Previous Comments:
------------------------------------------------------------------------
[2008-03-30 12:28:18] tokul at users dot sourceforge dot net
Description:
------------
mb_encode_mimeheader incorrectly folds iso-2022 texts. rfc 2047 chapter
3 second paragraph says that folded string must be reverted to ASCII.
Code just splits ISO-2022 string without adding appropriate escapes.
Code works as expected only when mbstring.internal_encoding is set to
correct value. This dependency of mb_encode_mimeheader() is not
documented and catches all users that are not used to
mb_encode_mimeheader() quirks.
Reproduce code:
---------------
/** See
http://etext.lib.virginia.edu/japanese/hyakunin/frames/hyakuframes.html
*/
$string = "\xe7\xa7\x8b\xe3\x81\xae\xe7\x94\xb0\xe3\x81\xae\x20"
."\xe3\x81\x8b\xe3\x82\x8a\xe3\x81\xbb\xe3\x81\xae\xe5\xba\xb5"
."\xe3\x81\xae\x20\xe8\x8b\xab\xe3\x82\x92\xe3\x81\x82"
."\xe3\x82\x89\xe3\x81\xbf\x20\x20\xe3\x82\x8f\xe3\x81\x8c"
."\xe8\xa1\xa3\xe6\x89\x8b\xe3\x81\xaf\x20\xe9\x9c\xb2"
."\xe3\x81\xab\xe3\x81\xac\xe3\x82\x8c\xe3\x81\xa4\xe3\x81\xa4";
$string_iso2022 = mb_convert_encoding($string,'iso-2022-jp','utf-8');
echo mb_encode_mimeheader($string_iso2022,'iso-2022-jp','b');
Expected result:
----------------
=?ISO-2022-JP?B?GyRCPSkkTkVEJE4bKEIgGyRCJCskaiRbJE4wQyROGyhCIBskQkZRGyhC?=
=?ISO-2022-JP?B?GyRCJHIkIiRpJF8bKEIgIBskQiRvJCwwYTxqJE8bKEIgGyRCTyobKEI=?=
=?ISO-2022-JP?B?GyRCJEskTCRsJEQkRBsoQg==?=
Actual result:
--------------
=?ISO-2022-JP?B?GyRCPSkkTkVEJE4bKEIgGyRCJCskaiRbJE4wQyROGyhCIBskQkZRJHIk?=
=?ISO-2022-JP?B?IiRpJF8bKEIgIBskQiRvJCwwYTxqJE8bKEIgGyRCTyokSyRMJGwkRCRE?=
=?ISO-2022-JP?B?GyhC?=
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Edit this bug report at http://bugs.php.net/?id=44570&edit=1