Fixed little issue.

Added a sign method.

lib/ostatus/push.js

@@ -63,23 +63,27 @@ function subscribe(url, config, callback) {
 	console.log("Data: " + data);
 	Http.post(url, data, headers, function(err, response, body) {
 		if (err) return callback(err);
-		if (response.statusCode == 200) {
+		if (response.statusCode == 202) {
 			callback(null, "pending");
 		} else if (response.statusCode == 204) {
 			callback(null, "accepted");
 		} else {
-			callback(new Error("Push subscribe returned http status code " + response.statusCode));
-		}
+			callback(new Error("Push subscribe http error " + response.statusCode + "\n" + body));
+		} 
 	});
 }
 
+function sign(data, secret) {
+	var hmac = Crypto.createHmac("sha1", secret);
+	var hash = hmac.update(data);
+	return hmac.digest(encoding="hex");
+}
+
 function distribute(data, url, secret, callback) {
 	var headers = {"Content-Type": "application/atom-xml"};
 
 	if (secret != undefined) {
-		var hmac = Crypto.createHmac("sha1", secret);
-		var hash = hmac.update(data);
-		var digest = "sha1="+  hmac.digest(encoding="hex");
+		var digest = "sha1="+  sign(data, secret);
 		headers["X-Hub-Signature"] = digest;
 		console.log("Digest: " + digest);
 	}
@@ -107,3 +111,4 @@ function _secret(size) {
 exports.verify = verify;
 exports.distribute = distribute;
 exports.subscribe = subscribe;
+exports.sign = sign;