Edit report at http://bugs.php.net/bug.php?id=53217&edit=1

 ID:                 53217
 User updated by:    bell at ctrlf5 dot co dot za
 Reported by:        bell at ctrlf5 dot co dot za
-Summary:            PDO treats backslashes in pgsql passwords as escape
                     characters
+Summary:            PDO-pgsql fails to escape backslashes in passwords
 Status:             Bogus
 Type:               Bug
 Package:            PDO related
 Operating System:   Ubuntu 10.04 AMD64 W/S
 PHP Version:        5.3.3
 Block user comment: N
 Private report:     N

 New Comment:

I have read the documentation. I says that the function takes a password
as a parameter. As it stands the password needs to be escaped. This is a
bug, and a relatively easily addressable one at that.



It would be nice if the maintainer who closed the bug most recently
could likewise have read the issue. Any reference to the specifics or
merits of the bug would have been preferable to the cut and paste
notice. The condescending (and likely sarcastic) "thanks" in the
boilerplate fobbing off just makes it all the more annoying.


Previous Comments:
------------------------------------------------------------------------
[2010-11-25 20:35:52] il...@php.net

Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php



------------------------------------------------------------------------
[2010-11-01 19:19:00] fel...@php.net

Well, I was wondering about the connect string using the password with
others parameters, not when using the password on a separated parameter
(as in your example). In this case, I guess it could be escaped, as
requested.

------------------------------------------------------------------------
[2010-11-01 18:44:20] bell at ctrlf5 dot co dot za

So you believe that it is not PDO's responsibility to escape input
values before passing them to underlying functions?



That doesn't sound right.

------------------------------------------------------------------------
[2010-11-01 18:24:06] fel...@php.net

This is due the libpq behavior. See
http://www.postgresql.org/docs/8.1/static/libpq.html

------------------------------------------------------------------------
[2010-11-01 08:04:30] bell at ctrlf5 dot co dot za

Description:
------------
When using a password containing a backslash to connect to PostgreSQL
database via PDO the driver appears to be treating the backslash as an
escape charcter. 



The problem is not global to PDO since MySQL works as expected.



It is not global to libpq since PearDB and the psql command line tool
work as expected.



Further explanation in the comments in the test script.

Test script:
---------------
$host = 'localhost';

$database = 'imix';

$username = 'imix';

// Password is |\/|ix3dUp

/*

  Works for MySQL - Doesn't work for pgsql - wireshark shows |/x3edUp
sent to server, error message shows password correctly 

*/

$mysql_password = '|\/|ix3dUp';

/*

  Doesn't work for pg - |/x3edUp still sent to server - error message
still shows password correctly - this is because \ is one of the two
chars escaped in a single quoted string

*/

// $password = '|\\/|ix3dUp';

/*

  Works for pgsql, not for mysql - Error message on mysql attempt shows
two backslashes

  Initial parse treats the first one as an escape, handing two to PDO -
pgsql driver seems to interpret the first remaining one as an escape
which really doesn't sound right ...

*/

$pgsql_password = '|\\\/|ix3dUp';



$mysql_connection = new PDO('mysql:host='.$host.';dbname='.$database,
$username, $mysql_password);



$pgsql_connection = new PDO('pgsql:host='.$host.';dbname='.$database,
$username, $pgsql_password);



Expected result:
----------------
I would expect the password as used for MySQL to work for both the
engines.

Actual result:
--------------
Test script as it stands executes without error.


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



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