public IActionResult Index([FromQuery] string k)
{
// Create the return object
QueryResult queryResult = new QueryResult()
{
URL = null
};
// Return empty if no key specified in query string
if (k == null || k == string.Empty)
{
return(View(queryResult));
}
// Make a connection to Cassandra and get a session
CassandraConnection cassandraConnection = new CassandraConnection();
ISession csSession = cassandraConnection.GetSession();
URLLookup urlLookup = new URLLookup(csSession);
// Get the actual long URL
if (!urlLookup.LookupURL(k, out string url))
{
// Return NotFound page if key doesn't exist
return(NotFound());
}
// Attache the URL to the result object
queryResult.URL = url;
// Return result
return(View(queryResult));
}
public object Index([FromForm] string url)
{
// Create object to return
APIResult result = new APIResult()
{
Status = (int)APIStatus.Failure,
Message = "",
URL = url,
Shortcut = string.Empty,
Popularity = 0
};
// Get the URL's SHA512 & SHA256 hash
string sha512 = SHA512Hash.GetSHA512Hash(url);
string sha256 = SHA256Hash.GetSHA256Hash(url);
// Open up a connection to Cassandra
CassandraConnection csConnection = new CassandraConnection();
// Get connection session
ISession csSession = csConnection.GetSession();
// Lookup database and return the URL's signature if it exists
SignatureLookup signatureLookup = new SignatureLookup(csSession);
if (signatureLookup.LookupSignature(sha512, sha256, out string signature, out long hits))
{
result.Shortcut = this.MakeShortcut(signature);
result.Popularity = hits;
result.Status = (int)APIStatus.Success;
return(Json(result));
}
// Get total URL count from the running service
long id = 0;
try
{
const string BOT = "<~BOT~>";
const string EOT = "<~EOT~>";
const string COMMAND_COUNT = "COUNT";
string message = string.Format("{0}{1}{2}", BOT, COMMAND_COUNT, EOT);
string ip = "127.0.0.1";
int port = 7079;
AsyncClientSocket asyncClientSocket = new AsyncClientSocket();
asyncClientSocket.Transmit(ip, port, message, out string response);
//SyncClientSocket.Transmit(ip, port, message, out string response);
if (response == string.Empty)
{
result.Message = "Service Unavailable!";
return(Json(result));
}
id = long.Parse(response);
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
// Prepare dictionary
char[] dictionary =
{
'A', 'B', 'C', 'D', 'E', 'F',
'G', 'H', 'I', 'J', 'K', 'L',
'M', 'N', 'O', 'P', 'Q', 'R',
'S', 'T', 'U', 'V', 'W', 'X',
'Y', 'Z',
'a', 'b', 'c', 'd', 'e', 'f',
'g', 'h', 'i', 'j', 'k', 'l',
'm', 'n', 'o', 'p', 'q', 'r',
's', 't', 'u', 'v', 'w', 'x',
'y', 'z',
'0', '1', '2', '3', '4', '5',
'6', '7', '8', '9'
};
// Get signature
signature = BaseN.ChangeBase(id, dictionary);
// Unique signature is now set
result.Shortcut = this.MakeShortcut(signature);
// Insert the new URL into the database
URLInsertion urlInsertion = new URLInsertion(csSession);
if (urlInsertion.InsertURL(url, signature, sha512, sha256))
{
result.Popularity = 1;
result.Status = (int)APIStatus.Success;
}
return(Json(result));
}