| // Password strength meter |
| // by Randy |
| // www.layoutdb.net.ms |
| // www.whiplashstudio.net.ms |
| // randy.malone@yahoo.com |
| |
| var shortPass = 'Not long enough' |
| var badPass = 'Bad' |
| var goodPass = 'Good' |
| var strongPass = 'Strong' |
| |
| |
| |
| function passwordStrength(password,username) |
| { |
| score = 0 |
| |
| //password < 4 |
| if (password.length < 4 ) { return shortPass } |
| |
| //password == username |
| if (password.toLowerCase()==username.toLowerCase()) return badPass |
| |
| //password length |
| score += password.length * 4 |
| score += ( checkRepetition(1,password).length - password.length ) * 1 |
| score += ( checkRepetition(2,password).length - password.length ) * 1 |
| score += ( checkRepetition(3,password).length - password.length ) * 1 |
| score += ( checkRepetition(4,password).length - password.length ) * 1 |
| |
| //password has 3 numbers |
| if (password.match(/(.*[0-9].*[0-9].*[0-9])/)) score += 5 |
| |
| //password has 2 sybols |
| if (password.match(/(.*[!,@,#,$,%,^,&,*,?,_,~].*[!,@,#,$,%,^,&,*,?,_,~])/)) score += 10 |
| |
| //password has Upper and Lower chars |
| if (password.match(/([a-z].*[A-Z])|([A-Z].*[a-z])/)) score += 10 |
| |
| //password has number and chars |
| if (password.match(/([a-zA-Z])/) && password.match(/([0-9])/)) score += 15 |
| // |
| //password has number and symbol |
| if (password.match(/([!,@,#,$,%,^,&,*,?,_,~])/) && password.match(/([0-9])/)) score += 15 |
| |
| //password has char and symbol |
| if (password.match(/([!,@,#,$,%,^,&,*,?,_,~])/) && password.match(/([a-zA-Z])/)) score += 15 |
| |
| //password is just a nubers or chars |
| if (password.match(/^\w+$/) || password.match(/^\d+$/) ) score -= 10 |
| |
| //verifing 0 < score < 100 |
| if ( score < 0 ) score = 0 |
| if ( score > 100 ) score = 100 |
| |
| if (score < 34 ) return badPass |
| if (score < 68 ) return goodPass |
| return strongPass |
| } |
| |
| |
| // checkRepetition(1,'aaaaaaabcbc') = 'abcbc' |
| // checkRepetition(2,'aaaaaaabcbc') = 'aabc' |
| // checkRepetition(2,'aaaaaaabcdbcd') = 'aabcd' |
| |
| function checkRepetition(pLen,str) { |
| res = "" |
| for ( i=0; i<str.length ; i++ ) { |
| repeated=true |
| for (j=0;j < pLen && (j+i+pLen) < str.length;j++) |
| repeated=repeated && (str.charAt(j+i)==str.charAt(j+i+pLen)) |
| if (j<pLen) repeated=false |
| if (repeated) { |
| i+=pLen-1 |
| repeated=false |
| } |
| else { |
| res+=str.charAt(i) |
| } |
| } |
| return res |
| } |
| // pretty badass, huh? you know it. |