Ti Ru

This is a chapter review question for my Info Security Class regarding SQL injections. I would like to complete the chapter reviews before the final and im having trouble finding the answer in my book, notes, and on the internet. Any help would be much appreciated.


What is the purpose of a client-side web proxy? How can it defeat the mitigation strategy of using java script to sanitize user input in a browser?

Its a requirment for the class. How would i go about accounting for the spaces before and after the dashes? Would the below code work?

mm / dd / yyyy
012345678910111213


if (x.length() == 13) { //Checking the length of the date is correct (so nobody enters something like "1/2/94") String temp = String.valueOf(x.charAt(0)) + String.valueOf(x.charAt(1)); month = Integer.parseInt(temp); symbol = x.charAt(3); temp = String.valueOf(x.charAt(5)) + String.valueOf(x.charAt(6)); day = Integer.parseInt(temp); symbol2 = x.charAt(8); year = Integer.parseInt(String.valueOf(x.substring(10)));

This is a post from http://www.dreamincode.net/forums/topic/143081-numerology-report/ - I couldnt figure out how to quote it. Basically what i am trying to figure out is how to make required user input in the format, mm / dd / yyyy with spaces before and after the dashes.
import java.util.Scanner; public class Numerology { private static int month, day, year, date, numerology; private static char symbol, symbol2; public static void main(String[] args) { System.out.print("Enter your birth date (mm/dd/yyyy):"); Birthday(); } //Asks for the users birthday, and goes on to check it. private static void Birthday() { String x = new Scanner(System.in).nextLine(); if (x.length() == 10) { //Checking the length of the date is correct (so nobody enters something like "1/2/94") String temp = String.valueOf(x.charAt(0)) + String.valueOf(x.charAt(1)); month = Integer.parseInt(temp); symbol = x.charAt(2); temp = String.valueOf(x.charAt(3)) + String.valueOf(x.charAt(4)); day = Integer.parseInt(temp); symbol2 = x.charAt(5); year = Integer.parseInt(String.valueOf(x.substring(6))); Check(); } else { System.out.println("Bad date: put date in the format mm/dd/yy."); } } //Checks each part of the date, and start numerology if the date is correct private static void Check() { //Check Month is correct if (month < 1 || month > 12) { System.out.printf("Bad month:%d\n", month); System.out.print("Enter birth date (mm/dd/yyyy):"); Birthday(); } else //Check symbols are correct if (symbol != '/' || symbol2 != '/') { System.out.print("Use forward slashes between mm/dd/yyyy!\n"); System.out.print("Enter birth date (mm/dd/yyyy):"); Birthday(); } else // Check year is correct if (year < 1880 || year > 2280) { System.out.printf("Bad year for %d\n", year); System.out.print("Enter birth date (mm/dd/yyyy):"); Birthday(); } else if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) { if (day < 1 || day > 31) { System.out.printf("Bad day for %d/%d : %d\n", month, year, day); System.out.print("Enter birth date (mm/dd/yyyy):"); Birthday(); } } else if (month == 4 || month == 6 || month == 9 | month == 11) { if (day < 1 || day > 30) { System.out.printf("Bad day for %d/%d : %d\n", month, year, day); System.out.print("Enter birth date (mm/dd/yyyy):"); Birthday(); } } else if (month == 2) { if (year % 4 == 0 || year % 400 == 0 || year == 2000) { if (day < 1 || day > 29) { System.out.printf("Bad day for %d/%d : %d\n", month, year, day); } System.out.print("Enter birth date (mm/dd/yyyy):"); Birthday(); } if (year % 4 != 0 || year % 100 == 0 || year % 400 != 0 || year != 2000) { if (day < 1 || day > 28) { System.out.printf("Bad day for %d/%d : %d\n", month, year, day); } System.out.print("Enter birth date (mm/dd/yyyy):"); Birthday(); } } //Everything is good, go onto numerology. Numerology(); } //Starts numerology report private static void Numerology() { System.out.println( "Welcome to the numerology report for " + month+ "/" + day+ "/" + year); date = month + day + year; do { date = ((date % 10) + (date / 10)); } while (date >= 10); numerology = date; switch (numerology) { case 1: System.out.println(":1: Your luck is about to change so get ready! "); break; case 2: System.out.println(":2: Keep trying you are making it. "); break; case 3: System.out.println(":3: It's time to relax! "); break; case 4: System.out.println(":4: Money prolems are about to get solved. "); break; case 5: System.out.println(":5: If you stay optimistic, your dreams will come true."); break; case 6: System.out.println(":6: Although things may seem bad, don't worry."); break; case 7: System.out.println(":7: You are about to find the love of your life."); break; case 8: System.out.println(":8: Too much fun is not very healthy."); break; case 9: System.out.println(":9: Something unexpected will happen today."); break; } } }



Thanks!