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Authentication using MDB2

 
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danny876



Joined: 31 Aug 2006
Posts: 5
PostPosted: Mon Oct 02, 2006 1:56 pm    Post subject: Authentication using MDB2 Reply with quote
Hello all.

My problem is quite simple but I have been stuck on it for about 2 months now. I must be really dumb! So please help if you can!!

Task: To create a basic log in form using the Auth package. Example taken from the Auth package documentation.

Success = Using the DB container
Failure = Using the MDB2 container

Here's what I have observed:
1) It returns an error when trying to do quote('username', 'type').
2) Printing the error says that it cannot find package MDB2/Datatype.php

I am a bit confused as to why it is looking for a file called datatype.php
as it's not included in the Auth or MDB2 download.

It's exactly the same set up for DB (which works like a dream).

I have placed the mysql.php in the folders but I am not sure what else I need to do.

PLEASE HELP I NEED TO DO THIS TO MOVE ON - can't use DB coz it's slow and out of date. Besides - i dislike unsolved problems.

THANK YOU!!

Dan.
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primeminister
Site Admin


Joined: 16 Apr 2006
Posts: 94
Location: Netherlands
PostPosted: Tue Oct 03, 2006 8:28 am    Post subject: Reply with quote
Hi Dan,

Can you give me the way you connect to MDB2?

This is what they say on the PEAR Website in the MDB2 End-user documentation:
Code:

<?php
require_once 'MDB2.php';

$dsn = array(
    'phptype'  => 'mysql',
    'username' => 'someuser',
    'password' => 'apasswd',
    'hostspec' => 'localhost',
    'database' => 'thedb',
);
// don't really know if this is
$options = array(
    'debug'       => 0,
    'portability' => MDB2_PORTABILITY_ALL,
);

// uses MDB2::factory() to create the instance
// and also attempts to connect to the host
$mdb2 =& MDB2::connect($dsn, $options);
if (PEAR::isError($mdb2)) {
    die($mdb2->getMessage());
}
?>


I think you don't give the phptype or quote() is messingup your DSN
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danny876



Joined: 31 Aug 2006
Posts: 5
PostPosted: Tue Oct 03, 2006 12:36 pm    Post subject: Hi again Reply with quote
THANK FOR THE REPLY!

Here you go:

This code I think is very similar to the example given in the Auth documentation.

I really realy appreciate the help!


Dan.




Code:

<?php
require_once "../../pear/auth/Auth.php";

function loginFunction()
{
     /*
      * Change the HTML output so that it fits to your
      * application.
      */
     echo "<form method=\"post\" action=\"index.php?login=1\">";
     echo "<input type=\"text\" name=\"username\">";
     echo "<input type=\"password\" name=\"password\">";
     echo "<input type=\"submit\">";
     echo "</form>";
}

if (isset($_GET['login']) && $_GET['login'] == 1) {
     $optional = true;
} else {
     $optional = false;
}

$options = array(
  'dsn' => 'mysql://user:password@host/database',
  );

$a = new Auth("MDB2", $options, "loginFunction");

$a->start();

echo "Everybody can see this text!<br />";

if (!isset($_GET['login'])) {
     echo "<a href=\"index.php?login=1\">Click here to log in</a>\n";
}

if ($a->getAuth()) {
    echo "YOU ARE LOGGED IN!";
  } else {
   echo 'I am not logged in';
   echo '<br>'.$_GET['login'];
}
?>
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danny876



Joined: 31 Aug 2006
Posts: 5
PostPosted: Tue Oct 03, 2006 12:37 pm    Post subject: Also Reply with quote
Also I am using the MDB2 container found in Auth.
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danny876



Joined: 31 Aug 2006
Posts: 5
PostPosted: Tue Oct 03, 2006 11:07 pm    Post subject: More info... Reply with quote
Just to clarify that is goes wrong at this point....

The key thing to note here, is that it goes wrong before it executes this query.

So... what could I be doing wrong that would prevent quote() from working correctly?? A small portion of the error I receive (which I should have placed at the start) is...

Quote:

MDB2_Error Object ( [error_message_prefix] => [mode] => 1 [level] => 1024 [code] => -4 [message] => MDB2 Error: not found [userinfo] => unable to find package 'MDB2_Datatype' file 'MDB2/Datatype.php'


Here is the segment where the code goes ... wrong.

[code]
$query = sprintf("SELECT %s FROM %s WHERE %s = %s",
$sql_from,
$this->options['final_table'],
$this->options['final_usernamecol'],
$this->db->quote($username, 'text')
);
[/code]

It manages to pass the username as i have done the below which prints the username (before $query).

echo $username; exit();


Thanks to those brainy enough to help Very Happy

Dan.
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danny876



Joined: 31 Aug 2006
Posts: 5
PostPosted: Fri Oct 06, 2006 9:45 pm    Post subject: SOLVED Reply with quote
Right...Basically here is what I did to fix this.

Deleted everything and started again. I must have done a manual installation on a shared host/server incorrectly.

Rule No. 1 : Do not change any of the includes with pear, auth, mdb2 or db.

Rule No. 2 : Do not enter a DSN and you'll be passing this through from a secure location anyhow.

Rule No. 3 : For manual installations on shared host this is the structure

-- A Folder you call MyPearFolder
---- Pear
---- MDB2
---- DB
---- Auth
------Auth

Rule No. 4 : Never ever give up!

Rule No. 5 : Use the examples supplied on the pear website - they simple and are invaluable.

Rule No. 6 : Set your include path to be the location of host/MyPearFolder/

Rule No. 7 : If unsure on how to connect using your specific database container. Look at the tests include in the Auth folder, they will include example $options (=connection parameters). Usually easy as CPE jobs (copy, paste and edit jobs) don't u just love acronyms.

At the top of every script place the following:


Code:

ini_set("include_path", "/host/belowrootordomain/MyPearFolder/");


I truely hopes this helps others who a little pear-like challenged..
Been stuck now for so long i haven't got anything in my head to continue with LOL!

I'll be creating a blog with this info in soon,
hope people will find it of interest!

Kind Regards,
A now very happy chappy.
Dan.
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primeminister
Site Admin


Joined: 16 Apr 2006
Posts: 94
Location: Netherlands
PostPosted: Sun Oct 08, 2006 2:57 pm    Post subject: Reply with quote
He Dan,

Great that you've got that working and thanx for sharing.

cya!
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mrsocks



Joined: 03 Feb 2007
Posts: 14
PostPosted: Sun Feb 04, 2007 8:45 am    Post subject: Reply with quote
did you ever really figure out what was going on with this issue?
i am trying to use insert with mdb2 and the insert is throwing the:

'unable to find package 'MDB2_Datatype' file 'MDB2/Datatype.php''

error.

any suggestions as to what really caused this?

thanks.
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