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<?php
require __DIR__ . '/vendor/autoload.php';
session_start();
$consumer_key = getenv('CONSUMER_KEY');
$consumer_secret = getenv('CONSUMER_SECRET');
$client = new Tumblr\API\Client($consumer_key, $consumer_secret);
$requestHandler = $client->getRequestHandler();
$requestHandler->setBaseUrl('https://www.tumblr.com/');
// Check if the user has already authenticated
if(isset($_SESSION['perm_token']) && !empty($_SESSION['perm_token']) && isset($_SESSION['perm_secret']) && !empty($_SESSION['perm_secret'])) {
$token = $_SESSION['perm_token'];
$token_secret = $_SESSION['perm_secret'];
}
// Check if the user was here earlier by checking cookies
else if (isset($_COOKIE['perm_token']) && !empty($_COOKIE['perm_token']) && isset($_COOKIE['perm_secret']) && !empty($_COOKIE['perm_secret'])) {
$token = $_COOKIE['perm_token'];
$token_secret = $_COOKIE['perm_secret'];
}
// Check if this is the user's first visit
else if (!isset($_GET['oauth_verifier'])) {
// Grab the oauth token
$resp = $requestHandler->request('POST', 'oauth/request_token', array());
$out = $result = $resp->body;
$data = array();
parse_str($out, $data);
// Save temporary tokens to session
$_SESSION['tmp_token'] = $data['oauth_token'];
$_SESSION['tmp_secret'] = $data['oauth_token_secret'];
// Redirect user to Tumblr auth page
session_regenerate_id(true);
$header_url = 'https://www.tumblr.com/oauth/authorize?oauth_token=' . $data['oauth_token'];
header('Location: ' . $header_url);
die();
}
// Check if the user was just sent back from the Tumblr authentication site
else {
$verifier = $_GET['oauth_verifier'];
// Use the stored temporary tokens
$client->setToken($_SESSION['tmp_token'], $_SESSION['tmp_secret']);
// Access the permanent tokens
$resp = $requestHandler->request('POST', 'oauth/access_token', array('oauth_verifier' => $verifier));
$out = $result = $resp->body;
$data = array();
parse_str($out, $data);
// Set permanent tokens
$token = $data['oauth_token'];
$token_secret = $data['oauth_token_secret'];;
$_SESSION['perm_token'] = $data['oauth_token'];
$_SESSION['perm_secret'] = $data['oauth_token_secret'];
// Set cookies in case the user comes back later
setcookie("perm_token", $_SESSION['perm_token']);
setcookie("perm_secret", $_SESSION['perm_secret']);
// Redirect user to homepage for a clean URL
session_regenerate_id(true);
$header_url = 'https://example.com/vox-populi/';
header('Location: ' . $header_url);
die();
}
// Authenticate via OAuth
$client = new Tumblr\API\Client(
$consumer_key,
$consumer_secret,
$token,
$token_secret
);
// Set up a function to check if variables are blank later (this function accepts 0, 0.0, and "0" as valid)
function not_blank($value) {
return !empty($value) && isset($value) && $value !== '';
}
// Grab the callback URL
$url = $_GET['callback'];
if (!not_blank($url)) {
$url = 'Location: https://example.com/vox-populi/';
}
// See what action we need to do
$action = $_GET['action'];
if (!not_blank($action)) {
header('Location: ' . $url);
die();
}
// Follow a new blog
if ($action == "follow") {
$blogName = $_GET['blog_name'];
if(not_blank($blogName)) {
$client->follow($blogName);
print 'success';
} else {
print 'failure';
}
}
// Unfollow a blog
if ($action == "unfollow") {
$blogName = $_GET['blog_name'];
if(not_blank($blogName)) {
$client->unfollow($blogName);
print 'success';
} else {
print 'failure';
}
}
// Like a post
if ($action == "like") {
$postId = $_GET['post_id'];
$reblogKey = $_GET['reblog_key'];
if(not_blank($postId) && not_blank($reblogKey)) {
$client->like($postId, $reblogKey);
print 'success';
} else {
print 'failure';
}
}
// Unlike a post
if ($action == "unlike") {
$postId = $_GET['post_id'];
$reblogKey = $_GET['reblog_key'];
if(not_blank($postId) && not_blank($reblogKey)) {
$client->unlike($postId, $reblogKey);
print 'success';
} else {
print 'failure';
}
}
// Reblog a post
if ($action == "reblog") {
$blogName = $_GET['blog_name'];
$id = $_GET['id'];
$reblogKey = $_GET['reblog_key'];
if(not_blank($blogName) && not_blank($id) && not_blank($reblogKey)) {
$client->reblogPost($blogName, $id, $reblogKey);
print 'success';
} else {
print 'failure';
}
}
// Unreblog a post
if ($action == "reblog") {
$blogName = $_GET['blog_name'];
$id = $_GET['id'];
$reblogKey = $_GET['reblog_key'];
if(not_blank($blogName) && not_blank($id) && not_blank($reblogKey)) {
$client->deletePost($blogName, $id, $reblogKey);
print 'success';
} else {
print 'failure';
}
}
?>
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