public static bool fetchPushMessages(bool force = false)
{
if (force == false && lastUpdate + cooldownPeriod > Clock.getTimestamp())
{
return(false);
}
lastUpdate = Clock.getTimestamp();
if (pushNotificationAuthKey == null)
{
if (!registerWithPushNotificationServer())
{
return(false);
}
}
try
{
string receiver = Base58Check.Base58CheckEncoding.EncodePlain(Node.walletStorage.getPrimaryAddress());
nonce++;
byte[] sig = Crypto.sha512(UTF8Encoding.UTF8.GetBytes(nonce + pushNotificationAuthKey));
using (WebClient client = new WebClient())
{
string url = String.Format("{0}/fetch.php?tag={1}&nonce={2}&sig={3}", Config.pushServiceUrl, receiver, nonce, Crypto.hashToString(sig));
string htmlCode = client.DownloadString(url);
if (htmlCode.StartsWith("ERROR"))
{
if (htmlCode.StartsWith("ERROR: Nonce too low "))
{
nonce = Int32.Parse(htmlCode.Substring("ERROR: Nonce too low ".Length));
}
return(false);
}
if (htmlCode == "UNREGISTERED")
{
pushNotificationAuthKey = null;
registerWithPushNotificationServer();
return(false);
}
List <string[]> jsonResponse = JsonConvert.DeserializeObject <List <string[]> >(htmlCode);
if (jsonResponse != null && jsonResponse.Count > 0)
{
lastUpdate = 0; // If data was available, fetch it again without cooldown
}
foreach (string[] str in jsonResponse)
{
try
{
byte[] data = Convert.FromBase64String(str[1]);
if (str[2] != "")
{
byte[] pk = Convert.FromBase64String(str[2]);
Friend f = FriendList.getFriend(new Address(pk).address);
if (f != null && pk != null)
{
f.setPublicKey(pk);
}
}
StreamProcessor.receiveData(data, null);
}
catch (Exception e)
{
Logging.error("Exception occured in fetchPushMessages while parsing the json response: {0}", e);
}
try
{
nonce++;
sig = Crypto.sha512(UTF8Encoding.UTF8.GetBytes(nonce + pushNotificationAuthKey));
string id = str[0];
url = String.Format("{0}/remove.php?id={1}&nonce={2}&sig={3}", Config.pushServiceUrl, id, nonce, Crypto.hashToString(sig));
htmlCode = client.DownloadString(url);
}
catch (Exception e)
{
Logging.error("Exception occured in fetchPushMessages while removing the message from server: {0}", e);
}
}
}
}
catch (Exception e)
{
Logging.error("Exception occured in fetchPushMessages: {0}", e);
return(false);
}
return(true);
}
public static bool fetchPushMessages(bool force = false)
{
if (force == false && lastUpdate + cooldownPeriod > Clock.getTimestamp())
{
return(false);
}
lastUpdate = Clock.getTimestamp();
try
{
string URI = String.Format("{0}/fetch.php", Config.pushServiceUrl);
string unique_uri = String.Format("{0}/uniqueid.php", Config.pushServiceUrl);
string receiver = Base58Check.Base58CheckEncoding.EncodePlain(Node.walletStorage.getPrimaryAddress());
WebClient uclient = new WebClient();
byte[] checksum = Convert.FromBase64String(uclient.DownloadString(unique_uri));
byte[] sig = CryptoManager.lib.getSignature(checksum, Node.walletStorage.getPrimaryPrivateKey());
using (WebClient client = new WebClient())
{
string url = String.Format("{0}?tag={1}&sig={2}", URI, receiver, HttpUtility.UrlEncode(Convert.ToBase64String(sig)));
string htmlCode = client.DownloadString(url);
Logging.info("fetchPushMessages: {0}", htmlCode);
if (htmlCode == "FALSE")
{
return(false);
}
lastUpdate = 0; // If data was available, fetch it again without cooldown
List <string[]> jsonResponse = JsonConvert.DeserializeObject <List <string[]> >(htmlCode);
foreach (string[] str in jsonResponse)
{
try
{
byte[] data = Convert.FromBase64String(str[0]);
if (str[1] != "")
{
byte[] pk = Convert.FromBase64String(str[1]);
Friend f = FriendList.getFriend(new Address(pk).address);
if (f != null)
{
f.publicKey = pk;
}
FriendList.saveToStorage();
}
StreamProcessor.receiveData(data, null);
}
catch (Exception e)
{
Logging.error(string.Format("Exception occured in fetchPushMessages while parsing the json response. {0}", e));
}
}
}
}
catch (Exception e)
{
Logging.error(string.Format("Exception occured in fetchPushMessages. {0}", e));
return(false);
}
return(true);
}
