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Bug #12740 LDAP modify functions do not handle special characters
Submitted: 2001-08-14 09:41 UTC Modified: 2001-11-12 07:30 UTC
From: christian at metamerge dot com Assigned:
Status: Closed Package: LDAP related
PHP Version: 4.0.5 OS: Linux RH 7.1
Private report: No CVE-ID: None
 [2001-08-14 09:41 UTC] christian at metamerge dot com

I am working with PHP 4.0.5 and OpenLDAP 2.0.11.

I encounter problems when modifying some entries with attributes containing special chars (such as ?, ?...). The error returned by the LDAP server is "invalid syntax".

I have read some documentation about this. OpenLDAP can accept special chars, provided values are base64-encoded, when we use the tools that come with the application (ldapadd, ldapmodify, etc.).

But how to do this from PHP functions? I tried to base64_encode the values,
it naturally didn't do the trick (those values were considered as normal, and thus were not decoded - this polutes my directory.) Same goes for urlencoding.

Please help!


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 [2001-08-14 09:50 UTC]
Please include a short example script in this report.

 [2001-10-02 18:39 UTC]
I can't reprocude this with my test scripts. If this still
happens with PHP 4.0.6, reopen. Check also your locale settings.

 [2001-10-09 14:03 UTC] christian at metamerge dot com
// Here is a function to translate all values of a multi-dimensional array to UTF8

function encoder ($array)
  while ( list ($key, $val) = each ($array) ) 
    if (!is_array($val))
      $array[$key] = utf8_encode($val);
    else $array[$key] = encoder ($val);
  return $array;

//Here is a call where 
// - $conn_id is a valid connection ID
// - $dn is the dn of the object to add
// - $array is the array containing the values of the attributes indexed by name

$array = encoder($arr); 
ldap_add($conn_id, $dn, $array);

// this call fails 
// - if $array contains a special char (e.g ?, ?...) , thus returning SYNTAX ERROR
// - if $dn contains a special char (e.g ?, ?...) , thus returning No Such Object
 [2001-10-09 14:05 UTC] christian at metamerge dot com
What would the locale setting change? According to the docs, PHP have a UTF8 internal reprsentation of data...
 [2001-10-23 04:07 UTC]
Okay, does the ldap server support ldap v3?
If so, you should propably try to add this:

ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3)


 [2001-11-12 07:30 UTC]
The problem turned out to be that the syntax for the
attribute was IA5, thus not allowing non-ASCII. We
should see if we can report more precise error messages
that includes which attribute was the problem.

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