Bug #53377 [Opn->Sus]: imap_mime_header_decode() doesn't ignore \t during long MIME header unfolding

[aharvey]

Edit report at http://bugs.php.net/bug.php?id=53377&edit=1

 ID:                 53377
 Updated by:         ahar...@php.net
 Reported by:        up at co dot inbox dot lv
 Summary:            imap_mime_header_decode() doesn't ignore \t during
                     long MIME header unfolding
-Status:             Open
+Status:             Suspended
 Type:               Bug
 Package:            IMAP related
 Operating System:   Linux
 PHP Version:        5.3.3
-Assigned To:        
+Assigned To:        aharvey
 Block user comment: N
 Private report:     N

 New Comment:

Fixed on trunk. I'll verify that we want this for 5.3.4 before

committing it onto the 5.3 branch, since we're in a release cycle

at present.


Previous Comments:
------------------------------------------------------------------------
[2010-11-23 11:35:02] ahar...@php.net

Automatic comment from SVN on behalf of aharvey
Revision: http://svn.php.net/viewvc/?view=revision&revision=305686
Log: Fix bug #53377 (imap_mime_header_decode() doesn't ignore \t during
long MIME
header unfolding).

------------------------------------------------------------------------
[2010-11-22 12:48:53] up at co dot inbox dot lv

Description:
------------
Function imap_mime_header_decode() doesn't respect \t (HTAB) characters
marking continuation of header defined in RFC822 as one of the LWSP
chars, however SPACE is still ignored. Source string:



{{{

public 'subject' => string
'=?utf-8?B?V3VzaHUgaW5mb3JtIC0gU2FjZW5zaWJhcyBJZ2F1bmk=?=       
=?utf-8?B?amEgKFRhbGxpbmEpLCDRgdC+0YDQtdCy0L3QvtCy0LDQvdC40Y8g0LIg0KLQsNC7?=    
=?utf-8?B?0LvQuNC90LUgMTEg0LTQtdC60LDQsdGA0Y8=?='
(length=182)

}}}



where spaces between =?...?= lines are actually tabs, results to

{{{

array

  0 => 

    object(stdClass)[54]

      public 'charset' => string 'utf-8' (length=5)

      public 'text' => string 'Wushu inform - Sacensibas Igauni'
(length=32)

  1 => 

    object(stdClass)[53]

      public 'charset' => string 'default' (length=7)

      public 'text' => string ' ' (length=1)

  2 => 

    object(stdClass)[55]

      public 'charset' => string 'utf-8' (length=5)

      public 'text' => string 'ja (Tallina), соревнования в
Тал' (length=48)

  3 => 

    object(stdClass)[56]

      public 'charset' => string 'default' (length=7)

      public 'text' => string ' ' (length=1)

  4 => 

    object(stdClass)[57]

      public 'charset' => string 'utf-8' (length=5)

      public 'text' => string 'лине 11 декабря' (length=26)



}}}



This produces:

{{{

Wushu inform - Sacensibas Igauni ja (Tallina), соревнования
в Тал лине 11 декабря

}}}



with unwanted spaces in words "Igauni ja" and "Тал лине".

Test script:
---------------
    $str = "=?utf-8?B?V3VzaHUgaW5mb3JtIC0gU2FjZW5zaWJhcyBJZ2F1bmk=?="

       
."\t=?utf-8?B?amEgKFRhbGxpbmEpLCDRgdC+0YDQtdCy0L3QvtCy0LDQvdC40Y8g0LIg0KLQsNC7?="

        ."\t=?utf-8?B?0LvQuNC90LUgMTEg0LTQtdC60LDQsdGA0Y8=?=";



    var_dump(imap_mime_header_decode($str));

    var_dump(imap_mime_header_decode(str_replace("\t", " ", $str)))

Expected result:
----------------
array

  0 => 

    object(stdClass)[5]

      public 'charset' => string 'utf-8' (length=5)

      public 'text' => string 'Wushu inform - Sacensibas Igauni'
(length=32)

  1 => 

    object(stdClass)[4]

      public 'charset' => string 'utf-8' (length=5)

      public 'text' => string 'ja (Tallina),
б�аОб�аЕаВаНаОаВаАаНаИб� аВ аЂаАаЛ'
(length=48)

  2 => 

    object(stdClass)[3]

      public 'charset' => string 'utf-8' (length=5)

      public 'text' => string 'аЛаИаНаЕ 11
аДаЕаКаАаБб�б�' (length=26)



Actual result:
--------------
array

  0 => 

    object(stdClass)[1]

      public 'charset' => string 'utf-8' (length=5)

      public 'text' => string 'Wushu inform - Sacensibas Igauni'
(length=32)

  1 => 

    object(stdClass)[2]

      public 'charset' => string 'default' (length=7)

      public 'text' => string ' ' (length=1)

  2 => 

    object(stdClass)[3]

      public 'charset' => string 'utf-8' (length=5)

      public 'text' => string 'ja (Tallina),
б�аОб�аЕаВаНаОаВаАаНаИб� аВ аЂаАаЛ'
(length=48)

  3 => 

    object(stdClass)[4]

      public 'charset' => string 'default' (length=7)

      public 'text' => string ' ' (length=1)

  4 => 

    object(stdClass)[5]

      public 'charset' => string 'utf-8' (length=5)

      public 'text' => string 'аЛаИаНаЕ 11
аДаЕаКаАаБб�б�' (length=26)




------------------------------------------------------------------------



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Edit this bug report at http://bugs.php.net/bug.php?id=53377&edit=1