[dusk-dev] Name validation function for players and pets

[Wildern t. S. <tim...@ya...>]

This is my version of the function "isValidName" for
LivingThing.java.   "conf/dirtyWordFile" allows for real time
blocking of offensive patterns in character names.

    The version in 2.7.3 restricts the players name to only letters. 
I think this would eliminate a large portion of the current new dusk
population.  I see nothing wrong with names like "death_god" and
"]V[agic".  But I do agree that names like "_______" and "00043212"
are fairly unwanted.  The strValid variable below can be adjusted to
contain whatever characters are allowed (remove the numbers if so
desired), and the "conf/dirtyWordFile" can include patterns like "__"
(a double underscore to force a single underscore between other valid
chars)
    My version also puts a value in prefs to limit the length of
player names.


    boolean isValidName(String strName)
    {
        if (strName == null)
            return false;
        if (strName.equals("")
            || strName.length() > namecap
            || (strName.toLowerCase().equals("god")
            || (strName.toLowerCase().equals("default")))
            return false;

        String strValid = "0123456789_]['#";
        char[] letters = strName.toCharArray();
        char[] validChars = strValid.toCharArray();

        for(int n=0;n<letters.length;n++)
        {
            if (!Character.isLetter(letters[n]))
            {
                for(int i=0;i<validChars.length;i++)
                {
                    if (letters[n] != validChars[i])
                        return false;
                }
            }
        }

        RandomAccessFile rafFile = null;
        try
        {
            String strDirtyWord;
            String strLowerCaseName = strName.toLowerCase();
            rafFile = new RandomAccessFile("conf/dirtyWordFile",
"r");
            strDirtyWord = rafFile.readLine();
            while (strDirtyWord != null)
            {
                if (strLowerCaseName.indexOf(strDirtyWord) != -1)
                {
                    rafFile.close();
                    return false;
                }
                strDirtyWord = rafFile.readLine();
            }
            rafFile.close();
        }catch (Exception e)
        {
            System.out.println(strName + " had an error checking for
bad name in isBadName():"+e.toString());
            return false;
        }
        return true;
    }


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