private bool ValidateRetrieveRequest(CompanyListRetrieveRequest req)
{
if (req.LoginToken == null)
{
return(false);
}
if (req.UserId <= 0)
{
return(false);
}
if (req.NamePortion == null || req.NamePortion.Equals(""))
{
return(false);
}
return(true);
}
private void HandlePutRequest(HttpListenerContext ctx)
{
try
{
#region Input Validation
if (!ctx.Request.HasEntityBody)
{
WriteBodyResponse(ctx, 400, "Invalid Format", "Request did not contain a body");
return;
}
CompanyListRetrieveRequest entry = JsonDataObjectUtil <CompanyListRetrieveRequest> .ParseObject(ctx);
if (entry == null)
{
WriteBodylessResponse(ctx, 400, "Invalid Format");
return;
}
if (!ValidateRetrieveRequest(entry))
{
WriteBodyResponse(ctx, 400, "Invalid Format", "One or more fields contained an invalid value or were missing");
return;
}
#endregion
MySqlDataManipulator connection = new MySqlDataManipulator();
using (connection)
{
bool res = connection.Connect(MySqlDataManipulator.GlobalConfiguration.GetConnectionString());
if (!res)
{
WriteBodyResponse(ctx, 500, "Unexpected Server Error", "Connection to database failed");
return;
}
#region User Validation
OverallUser mappedUser = connection.GetUserById(entry.UserId);
if (mappedUser == null)
{
WriteBodyResponse(ctx, 404, "Not Found", "User was not found on on the server");
return;
}
if (!UserVerificationUtil.LoginTokenValid(mappedUser, entry.LoginToken))
{
WriteBodyResponse(ctx, 401, "Not Authorized", "Login token was incorrect.");
return;
}
#endregion
#region Input sanitation
if (entry.NamePortion.Contains('`'))
{
WriteBodyResponse(ctx, 400, "Bad Request", "Request contained a backtick character(`)." +
"This character is disallowed due to SQL injection attacks.");
return;
}
#endregion
List <CompanyId> companies = connection.GetCompaniesWithNamePortion(entry.NamePortion);
if (companies == null)
{
WriteBodyResponse(ctx, 500, "Internal Server Error", "Error occured while retrieving companies: " + connection.LastException.Message);
return;
}
JsonListStringConstructor retConstructor = new JsonListStringConstructor();
companies.ForEach(req => retConstructor.AddElement(WriteCompanyIdToOutput(req)));
WriteBodyResponse(ctx, 200, "OK", retConstructor.ToString());
}
}
catch (HttpListenerException)
{
//HttpListeners dispose themselves when an exception occurs, so we can do no more.
}
catch (Exception e)
{
WriteBodyResponse(ctx, 500, "Internal Server Error", e.Message);
}
}