private static bool checkValidity(string str, COMMAND_CHECK_TYPES type, Logger logger)
{
if (str == "")
{
return(false);
}
bool valid = true;
str = str.ToLower(); //legal chars for any type of input, first is for g_id, 2nd is for nickname and 3rd is for message
string[] validChars = { "0123456789", "0123456789abcdefghijklmnopqrstuvwxyz",
"0123456789abcdefghijklmnopqrstuvwxyz@^$.?,!#$%&/()=?»«@£§€{}.-;:'<@>_,]+ " };
switch (type.ToString())
{
case "gID":
{
int i = 0;
while (valid && i < str.Length) // chars in validChars which are numbers only
{
string a = "" + str[i];
if (!(validChars[0].Contains(a)))
{
goto default;
}
i++;
}
if (Double.Parse(str) < 1 || Double.Parse(str) > 99)
{
goto default;
}
return(true);
}
case "nickname":
{
int i = 0;
while (valid && i < str.Length) // chars in validChars which are numbers and letters
{
string a = "" + str[i];
if (!(validChars[1].Contains(a)))
{
goto default;
}
i++;
}
return(true);
}
case "message":
{
int i = 0;
while (valid && i < str.Length) // chars in validChars which are numbers, letters and signs
{
string a = "" + str[i];
if (!(validChars[2].Contains(a)))
{
goto default;
}
i++;
}
return(true);
}
default:
{
logger.logWarnMessage("The inserted input is ilegal for: " + type.ToString() + " parameter");
return(false);
}
}
}
/// <summary>
/// deals with inputs from user
/// </summary>
/// <param name="type"></param>
/// <param name="logger"></param>
/// <returns></returns>
private static string receiveCMD(COMMAND_CHECK_TYPES type, Logger logger)
{
int counter = 0; //attemps counter. 3 is max attempts allowed
string str = "";
switch (type.ToString())
{
case "gID": //gID check
{
alerts(ALERTS_TYPE.menu, logger);
do
{
if (counter == 3)
{
goto default;
}
alerts(ALERTS_TYPE.g_ID, logger);
str = Console.ReadLine();
if (Equals(str, "menu") || counter == 3)
{
goto default;
}
counter++;
}while (!(checkValidity(str, COMMAND_CHECK_TYPES.gID, logger))); //g_ID valid numbers and range check
return(str);
}
case "nickname": //nickname check
{
do
{
if (counter == 3)
{
goto default;
}
alerts(ALERTS_TYPE.nickname, logger);
str = Console.ReadLine();
if (Equals(str, "menu") || counter == 3)
{
goto default;
}
counter++;
}while (!(checkValidity(str, COMMAND_CHECK_TYPES.nickname, logger))); //nickname valid chars check
return(str);
}
case "message": //message check
{
do
{
if (counter == 3)
{
goto default;
}
alerts(ALERTS_TYPE.message, logger);
str = Console.ReadLine();
if (Equals(str, "menu") || counter == 3)
{
goto default;
}
counter++;
}while (!(checkValidity(str, COMMAND_CHECK_TYPES.message, logger))); //message valid chars check
return(str);
}
default:
{
Console.Clear();
if (counter == 3) //max attempts
{
alerts(ALERTS_TYPE.attemps, logger);
}
alerts(ALERTS_TYPE.menuSwitch, logger);
return(null);
}
}
}
