Delicious PHP oAuth Yahoo SDK Add Bookmark - oauth

Question

I'm really having a difficult time trying to find a way to successfully authenticate a user and post a bookmark to their delicious account.
I downloaded Yahoo's YOS Social SDK then began modifying the oauth sampleapp.php. It basically handles the oAuth process by creating a login link that sends you to Yahoo to grant permission then sends you back to the callback URL you specify.
My thought was to modify the sampleapp.php file to make a request to delicious posts/add API to add a new bookmark once they oAuth process is over, but I'm running into some problems. I think I'm handling the POST request in the wrong manner.
Here is my code:
<?php
require dirname(__FILE__).'/lib/Yahoo.inc';
error_reporting(E_ALL | E_NOTICE);
ini_set('display_errors', true);
YahooLogger::setDebug(true);
YahooLogger::setDebugDestination('LOG');
ini_set('session.save_handler', 'files');
session_save_path('/tmp/');
session_start();
define('OAUTH_CONSUMER_KEY', '<YOURS_GOES_HERE>');
define('OAUTH_CONSUMER_SECRET', '<YOURS_GOES_HERE>');
define('OAUTH_DOMAIN', '<YOURS_GOES_HERE>');
define('OAUTH_APP_ID', '<YOURS_GOES_HERE>');
if(array_key_exists("logout", $_GET)) {
YahooSession::clearSession();
header("Location: sampleapp.php");
}
$hasSession = YahooSession::hasSession(OAUTH_CONSUMER_KEY, OAUTH_CONSUMER_SECRET, OAUTH_APP_ID);
if($hasSession == FALSE) {
$callback = YahooUtil::current_url();
$auth_url = YahooSession::createAuthorizationUrl(OAUTH_CONSUMER_KEY, OAUTH_CONSUMER_SECRET, $callback);
}
else {
$session = YahooSession::requireSession(OAUTH_CONSUMER_KEY, OAUTH_CONSUMER_SECRET, OAUTH_APP_ID);
if($session) {
$consumer = new stdclass();
$consumer->key = OAUTH_CONSUMER_KEY;
$consumer->secret = OAUTH_CONSUMER_SECRET;
$nativeSession = new NativeSessionStore();
$token = $nativeSession->fetchAccessToken();
$client = new OAuthClient($consumer, $token, OAUTH_PARAMS_IN_HEADERS, OAUTH_SIGNATURE_HMAC_SHA1);
$request_url = 'http://api.del.icio.us/v2/posts/add';
$bookmark_url = 'http://www.tegdesign.com';
$parameters = array("url" => urlencode($bookmark_url), "description" => "test");
$response = $client->post($request_url,'TEXT',$parameters);
echo '<pre>';
print_r($response);
echo '</pre>';
}
}
if($hasSession == FALSE) {
echo sprintf("Login\n", $auth_url);
} else if($hasSession) {
echo "<p>Logout</p>";
}
?>
And here is the output of $response variable:
Array
(
[method] => POST
[url] => http://api.del.icio.us/v2/posts/add
[code] => 401
[requestHeaders] => Array
(
[0] => Accept: application/json
[1] => Authorization: OAuth realm="yahooapis.com",oauth_version="1.0",oauth_nonce="<MINE_SHOWS_HERE>",oauth_timestamp="1289407587",oauth_consumer_key="<MINE_SHOWS_HERE>",oauth_token="<MINE_SHOWS_HERE>",oauth_signature_method="HMAC-SHA1",oauth_signature="<MINE_SHOWS_HERE>"
[2] => Content-Type: TEXT
)
[requestBody] => Array
(
[url] => http%3A%2F%2Fwww.tegdesign.com
[description] => test
)
[responseHeaders] => Array
(
[Date] => Wed, 10 Nov 2010 16:46:32 GMT
[WWW-Authenticate] => OAuth oauth_problem="signature_invalid", realm="yahooapis.com"
[Content-Type] => application/json
[Cache-Control] => private
[Age] => 0
[Transfer-Encoding] => chunked
[Connection] => keep-alive
[Server] => YTS/1.17.21
)
[responseBody] => {"error":{"lang":"en-US","description":"Please provide valid credentials"}}
)
Does anybody have knowledge on using Delicious new API to successfully authenticate and post a bookmark on behalf a user? I'm having a terrible time.
Thanks,
Tegan

Answer 1

Set your content type to "application/x-www-form-urlencoded" instead of 'Text' on the below line.
$response = $client->post($request_url,'TEXT',$parameters);