Magento api rest oauth not authorizing consumer - php

Question

I'm attempting to connect to my magento api from an external server but i'm having an issue with OAuth.
I've created a consumer in the backend, assigned what it can access, authorized the consumer through oauth using terminal and it gave me my token and token secret.
My PHP is as follows;
<?php
$hostUrl = 'redacted';
$callbackUrl = $hostUrl."oauth_customer.php";
$temporaryCredentialsRequestUrl = $hostUrl."oauth/initiate?oauth_callback=".urlencode($callbackUrl);
$adminAuthorizationUrl = $hostUrl."oauth/authorize";
$accessTokenRequestUrl = $hostUrl."oauth/token";
$apiUrl = $hostUrl."api/rest";
$consumerKey = 'redacted';
$consumerSecret = 'redacted';
session_start();
if (!isset($_GET['oauth_token']) && isset($_SESSION['state']) && $_SESSION['state'] == 1) {
$_SESSION['state'] = 0;
}
try {
$authType = ($_SESSION['state'] == 2) ? OAUTH_AUTH_TYPE_AUTHORIZATION : OAUTH_AUTH_TYPE_URI;
$oauthClient = new OAuth($consumerKey, $consumerSecret, OAUTH_SIG_METHOD_HMACSHA1, $authType);
$oauthClient->enableDebug();
if (!isset($_GET['oauth_token']) && !$_SESSION['state']) {
$requestToken = $oauthClient->getRequestToken($temporaryCredentialsRequestUrl);
$_SESSION['secret'] = $requestToken['oauth_token_secret'];
$_SESSION['state'] = 1;
header('Location: ' . $adminAuthorizationUrl . '?oauth_token=' . $requestToken['oauth_token']);
exit;
} else if ($_SESSION['state'] == 1) {
$oauthClient->setToken($_GET['oauth_token'], $_SESSION['secret']);
$accessToken = $oauthClient->getAccessToken($accessTokenRequestUrl);
$_SESSION['state'] = 2;
$_SESSION['token'] = $accessToken['oauth_token'];
$_SESSION['secret'] = $accessToken['oauth_token_secret'];
header('Location: ' . $callbackUrl);
exit;
} else {
$oauthClient->setToken($_SESSION['token'], $_SESSION['secret']);
$resourceUrl = "$apiUrl/products";
$oauthClient->fetch($resourceUrl, array(), 'GET', array('Content-Type' => 'application/json'));
$productsList = json_decode($oauthClient->getLastResponse());
print_r($productsList);
}
} catch (OAuthException $e) {
print_r($e->getMessage());
echo "<br/>";
print_r($e->lastResponse);
}
?>
When I run this php file it redirects me to the magento site and says;
AUTHORIZE APPLICATION
consumer_name requests access to your account
After authorization application will have access to you account.
Authorize | Reject
When I click "Authorize" it redirects me to a 404 within magento. If I return to the php file it will redirect me to that same "authorize application" page over and over again.
I already have the token and such so I assume that it should already be authorized.
I'm attempting to access the name of products as well as their inventory quantity so I can't simply use guest access. Any help would be greatly appreciated.

Answer 1

Your callback URL should not be on the remote host, it should be on your application's host.

Answer 2

Remove $callbackUrl row and exchange with this code:
$callbackUrl = 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'];