[google-apps-apis] Authorization required?

[andy]

I'm working on a test script to work with out Google Apps account, but
I keep getting weird error:

Authorization required
Error 401

I know my account works, because I have a VB.NET program that works
and pulls down account information.  However, when I use the code
below, I gt the above error in HTML format.  Can someone tell me what
I'm doing wrong?  Thanks!

--- CODE BLOCK ---

<?php

$domain = "domain.com";
$auth_url = "https://www.google.com/accounts/ClientLogin";;
$list_url = "https://apps-apis.google.com/a/feeds/"; . $domain . "/user/
2.0";

$user = "webmas...@domain.com";
$pass = "xxxxxx";

$resp = get_auth($auth_url, $user, $pass);

if (substr($resp, 0, 3) != "SID")
{
    echo("Error.");
    die;
}

$responses = preg_split("/\n/", $resp);

$params = array();

foreach($responses as $response)
{
    $d = preg_split("/=/", $response, 2);

    if (strlen($d[0]) > 0)
    {
        $params[$d[0]] = $d[1];
    }
}

echo($params['Auth']);
echo("\n");
echo(get_list($list_url, $params['Auth']));

function get_auth($url, $user, $pass)
{
    $data = "Email=" . urlencode($user) . "&Passwd=" . urlencode
($pass) .
            "&accountType=HOSTED&service=apps";

    echo($data."\n");

    $ch = curl_init($url);

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST,  false);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);

    $r = curl_exec($ch);

    curl_close($ch);

    return $r;
}

function get_list($url, $authkey)
{
    $str = array(
        "Content-type: application/atom+xml",
        "Authorization: GoogleLogin auth: " + $authkey
    );

    $ch = curl_init($url);

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST,  false);
    curl_setopt($ch, CURLOPT_HTTPHEADER, $str);

    $r = curl_exec($ch);

    curl_close($ch);

    return $r;
}

?>

--- CODE BLOCK ---
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