angularjs随机密码生成器至少有一个上,下,数字和特殊字符

Question

如何使这个随机密码生成器生成至少一个组件？目前,生成的密码中不包含数字,或者省略任何其他类型.如何让它生成至少一种类型？

        $scope.passwordLength = 12;
        $scope.addUpper       = true;
        $scope.addNumbers     = true;
        $scope.addSymbols     = true;

        $scope.createPassword = function(){
            var lowerCharacters = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'];
            var upperCharacters = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'];
            var numbers = ['0','1','2','3','4','5','6','7','8','9'];
            var symbols = ['!', '#', '$', '%', '&', '\'', '(', ')', '*', '+', ',', '-', '.', '/', ':', ';', '<', '=', '>', '?', '@', '[', '\\', ']', '^', '_', '`', '{', '|', '}', '~'];
            var finalCharacters = lowerCharacters;
            if($scope.addUpper){
                finalCharacters = finalCharacters.concat(upperCharacters);
            }
            if($scope.addNumbers){
                finalCharacters = finalCharacters.concat(numbers);
            }
            if($scope.addSymbols){
                finalCharacters = finalCharacters.concat(symbols);
            }
            var passwordArray = [];
            for (var i = 1; i < $scope.passwordLength; i++) {
                passwordArray.push(finalCharacters[Math.floor(Math.random() * finalCharacters.length)]);
            };
            $scope.password = passwordArray.join("");
        };

Answer 1

你正在做的是创建所有可能的字符数组(finalCharacters)并随机取12个字符.

你需要做的是从每个阵列需要(至少需要一个随机字符upperCharacters,numbers,symbols)和将它洗.

算法示例:

• 生成lowerCharacters的数量,upperCharacters的数量,数字的数量和符号的数量(即3个较低,3个较高,3个数字,3个符号)
• 推的随机字符适当数量的来自每个阵列(lowerCharacters,upperCharacters,...)到阵列(即passwordArray)
• 拖曳 passwordArray
• 加入 passwordArray

第一步可能是:

• noOfLowerCharacters = 0,noOfUpperCharacters = 0,noOfUpperCharacters = 0
• 计算所需类型的数量(1,2或3).将其存储在变量中noOfneededTypes.
• 从范围1到(passwordLength- noOfneededTypes)取随机数.将其存储在变量中noOfLowerCharacters.
• 创造usedTypeCounter.将值设置为1
• 如果addUpper那么从范围1到(passwordLength- noOfneededTypes+ usedTypeCounter- noOfLowerCharacters)取随机数.将其存储在变量中noOfUpperCharacters.增加usedTypeCounter
• 如果addNumbers然后取从范围的随机数1到(passwordLength- noOfneededTypes+ usedTypeCounter- noOfLowerCharacters- noOfUpperCharacters).将其存储在变量中noOfNumbers.
• 如果addSymbols那么noOfSymbols= passwordLength- noOfLowerCharacters- noOfUpperCharacters-noOfNumbers

实施示例:

  $scope.passwordLength = 12;
  $scope.addUpper = true;
  $scope.addNumbers = true;
  $scope.addSymbols = true;

  function getRandomInt(min, max) {
    return Math.floor(Math.random() * (max - min + 1)) + min;
  }

  // shuffle function taken from http://stackoverflow.com/a/12646864/4989081
  function shuffleArray(array) {
    for (var i = array.length - 1; i > 0; i--) {
      var j = Math.floor(Math.random() * (i + 1));
      var temp = array[i];
      array[i] = array[j];
      array[j] = temp;
    }
    return array;
  }

  $scope.createPassword = function() {
    var lowerCharacters = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'];
    var upperCharacters = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'];
    var numbers = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'];
    var symbols = ['!', '#', '$', '%', '&', '\'', '(', ')', '*', '+', ',', '-', '.', '/', ':', ';', '<', '=', '>', '?', '@', '[', '\\', ']', '^', '_', '`', '{', '|', '}', '~'];

var noOfLowerCharacters = 0,
  noOfUpperCharacters = 0,
  noOfNumbers = 0,
  noOfSymbols = 0;

var noOfneededTypes = $scope.addUpper + $scope.addNumbers + $scope.addSymbols;

var noOfLowerCharacters = getRandomInt(1, $scope.passwordLength - noOfneededTypes);

var usedTypeCounter = 1;

if ($scope.addUpper) {
  noOfUpperCharacters = getRandomInt(1, $scope.passwordLength - noOfneededTypes + usedTypeCounter - noOfLowerCharacters);
  usedTypeCounter++;
}

if ($scope.addNumbers) {
  noOfNumbers = getRandomInt(1, $scope.passwordLength - noOfneededTypes + usedTypeCounter - noOfLowerCharacters - noOfUpperCharacters);
  usedTypeCounter++;
}

if ($scope.addSymbols) {
  noOfSymbols = $scope.passwordLength - noOfLowerCharacters - noOfUpperCharacters - noOfNumbers;
}

var passwordArray = [];

for (var i = 0; i < noOfLowerCharacters; i++) {
  passwordArray.push(lowerCharacters[getRandomInt(1, lowerCharacters.length - 1)]);
}

for (var i = 0; i < noOfUpperCharacters; i++) {
  passwordArray.push(upperCharacters[getRandomInt(1, upperCharacters.length - 1)]);
}

for (var i = 0; i < noOfNumbers; i++) {
  passwordArray.push(numbers[getRandomInt(1, numbers.length - 1)]);
}

for (var i = 0; i < noOfSymbols; i++) {
  passwordArray.push(symbols[getRandomInt(1, symbols.length - 1)]);
}

passwordArray = shuffleArray(passwordArray);

return passwordArray.join("");
};

$scope.password = $scope.createPassword();

见工作:http://jsfiddle.net/cmoqkkw8/