I can't wrap my brain around why this isn't work... I really think it should be. Please help.
Here is the error I get:
signature_invalid base_string:GET&https%3A%2F%2Fwww.google.com%2Faccounts%2FOAuthGetRequestToken&oauth_callback%3Dhttp%253A%252F%252Fnoveis.net%252Fauthsub%252Findex.php%26oauth_consumer_key%CONSUMER KEY HERE%26oauth_nonce%3D3bafa031c03f6d1590f2539091245270%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1282159845%26oauth_version%3D1.0%26scope%3Dhttps%253A%252F%252Fwww.googleapis.com%252Fauth%252Flatitude
Here is my code:
<?php
$consumer = ''; // Would be consumer key
$secret = ''; // Would be secret
$callback = ''; // Would be callback URL
$mt = microtime();
$rand = mt_rand();
$nonce = md5($mt . $rand);
$time = time();
$url = 'https://www.google.com/accounts/OAuthGetRequestToken';
$path = '/accounts/OAuthGetRequestToken';
$scope = 'https://www.googleapis.com/auth/latitude';
$post = array(
'oauth_callback' => $callback,
'oauth_consumer_key' => $consumer,
'oauth_nonce' => $nonce,
'oauth_signature_method' => 'HMAC-SHA1',
'oauth_timestamp' => $time,
'oauth_version' => '1.0'
);
$post_string = '';
foreach($post as $key => $value)
{
$post_string .= $key.'='.urlencode($value).'&';
}
$post_string = rtrim($post_string, '&');
$key_parts = array($consumer, $secret);
$key_parts = array_map('urlencode', $key_parts);
$key = implode('&', $key_parts);
$base_string = 'GET&'.urlencode($scope).'&'.$post_string;
$signature = base64_encode(hash_hmac('sha1', $base_string, $key, true));
$post['oauth_signature'] = $signature;
$header_string = '';
foreach($post as $key => $value)
{
$header_string .= $key.'="'.urlencode($value).'", ';
}
$header_string = trim($header_string);
$header_string = rtrim($header_string, ',');
$header[] = 'GET '.$path.'?scope='.urlencode($scope).' HTTP/1.1';
$header[] = 'Host: www.google.com';
$header[] = 'Accept: */*';
//$header[] = 'Content-Type: application/x-www-form-urlencoded';
$header[] = 'Authorization: OAuth '.$header_string;
$ch = curl_init();
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
curl_setopt($ch, CURLOPT_URL, $url.'?scope='.$scope);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
$result = curl_exec($ch);
curl_close($ch);
print_r($result);
?>