Bug #66117 [Fbk->NoF]: imap_fetchstructure dparameters[0]->value incomplete

From: Date: Sun, 25 Oct 2020 04:22:08 +0000
Subject: Bug #66117 [Fbk->NoF]: imap_fetchstructure dparameters[0]->value incomplete
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-229910@lists.php.net to get a copy of this message 
Edit report at https://bugs.php.net/bug.php?id=66117&edit=1

 ID:               66117
 Updated by:       php-bugs@lists.php.net
 Reported by:      saygushkin at gmail dot com
 Summary:          imap_fetchstructure dparameters[0]->value incomplete
-Status:           Feedback
+Status:           No Feedback
 Type:             Bug
 Package:          IMAP related
 Operating System: Linux
 PHP Version:      5.4.22
 Assigned To:      cmb
 Private report:   N

 New Comment:

No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Re-Opened". Thank you.


Previous Comments:
------------------------------------------------------------------------
[2020-10-16 14:27:27] cmb@php.net

Based on requinix' comment, it's pretty clear what happens: the
continuation is ignored.  I can, however, not reproduce the
reported behavior.

------------------------------------------------------------------------
[2013-11-19 19:21:51] requinix@php.net

Expected and actual outputs are backwards.

The relevant RFC is #2231: "MIME Parameter Value and Encoded Word Extensions: Character Sets,
Languages, and Continuations"
http://tools.ietf.org/html/rfc2231

tl;dr: the filename would be interpreted as coming in multiple parts (because of the *Ns) and
contains charset info (because of the trailing *s), and the value is decoded as UTF-8 (raw value is
formatted as charset'language'value).

------------------------------------------------------------------------
[2013-11-19 13:05:54] saygushkin at gmail dot com

fix summary

------------------------------------------------------------------------
[2013-11-19 13:01:14] saygushkin at gmail dot com

Description:
------------
---
From manual page: http://www.php.net/function.imap-fetchstructure#refsect1-function.imap-fetchstructure-returnvalues
---

I attached to the mail of the file with name "пустой
файл.txt".
Filename in dparameters->value is incomplete.
Mail source code:

--------------030200090909050404050001
Content-Type: text/plain; charset="UTF-8";
	name="=?UTF-8?B?0L/Rg9GB0YLQvtC5INGE0LDQudC7LnR4dA==?="
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
	filename*0*="UTF-8''%D0%BF%D1%83%D1%81%D1%82%D0%BE%D0%B9%20%D1%84%D0%B0%D0";
	filename*1*="%B9%D0%BB%2E%74%78%74"

0L/Rg9GB0YLQvtC5INGE0LDQudC7Cg==

--------------030200090909050404050001--

Test script:
---------------
$imapStream = imap_open($imapPath, $login, $password);

$mailIds = imap_search($imapStream, 'ALL', SE_UID);

$mailId = array_shift(mailIds);

$mailStructure = imap_fetchstructure($imapStream, $mailId, FT_UID);

var_dump($mailStructure);
var_dump($mailStructure->parts[1]->dparameters[0]->value);
var_dump(urldecode('%D0%BF%D1%83%D1%81%D1%82%D0%BE%D0%B9%20%D1%84%D0%B0%D0'));

Expected result:
----------------
["dparameters"]=>
array(1) {
  [0]=>
  object(stdClass)#724 (2) {
    ["attribute"]=>
    string(8) "filename"
    ["value"]=>
    string(61) "UTF-8''%D0%BF%D1%83%D1%81%D1%82%D0%BE%D0%B9%20%D1%84%D0%B0%D0"
  }
}
["ifparameters"]=>
int(1)
["parameters"]=>
array(2) {
  [0]=>
  object(stdClass)#725 (2) {
    ["attribute"]=>
    string(7) "charset"
    ["value"]=>
    string(5) "UTF-8"
  }
  [1]=>
  object(stdClass)#726 (2) {
    ["attribute"]=>
    string(4) "name"
    ["value"]=>
    string(48) "=?UTF-8?B?0L/Rg9GB0YLQvtC5INGE0LDQudC7LnR4dA==?="
  }
}

string(61) "UTF-8''%D0%BF%D1%83%D1%81%D1%82%D0%BE%D0%B9%20%D1%84%D0%B0%D0"
string(18) "пустой фа�"

Actual result:
--------------
["dparameters"]=>
array(1) {
  [0]=>
  object(stdClass)#724 (2) {
    ["attribute"]=>
    string(8) "filename"
    ["value"]=>
    string(61)
"UTF-8''%D0%BF%D1%83%D1%81%D1%82%D0%BE%D0%B9%20%D1%84%D0%B0%D0%B9%D0%BB%2E%74%78%74"
  }
}
["ifparameters"]=>
int(1)
["parameters"]=>
array(2) {
  [0]=>
  object(stdClass)#725 (2) {
    ["attribute"]=>
    string(7) "charset"
    ["value"]=>
    string(5) "UTF-8"
  }
  [1]=>
  object(stdClass)#726 (2) {
    ["attribute"]=>
    string(4) "name"
    ["value"]=>
    string(48) "=?UTF-8?B?0L/Rg9GB0YLQvtC5INGE0LDQudC7LnR4dA==?="
  }
}

string(61)
"UTF-8''%D0%BF%D1%83%D1%81%D1%82%D0%BE%D0%B9%20%D1%84%D0%B0%D0%B9%D0%BB%2E%74%78%74"
string(25) "пустой файл.txt"


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



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