Today I had to generate a random password for new opportunities at a customer site. Basically it’s part of a free trial programme – when a sales guy adds a new opportunity they grant access to the services offered by the Company for a limited period of time. So we added a field to the opportunity form and pre-fill it with random chars on load.
The code below will set til field new_onetimepassword to a pseudo random string (lowercase, uppercase, numbers and specials) of a random length (14 to 20 chars total) and set the value of new_onetimepassword accordingly.
function OnLoad() {
var formType = Xrm.Page.ui.getFormType();
if (formType == 1) // create
{
Xrm.Page.getAttribute(“pa_onetimepassword”).setValue(GenerateRandomPassword());
}
}
function GenerateRandomPassword() {
var specials = ‘!@#$%&*()_-+{}:”<>?\[];,./’;
var lowercase = ‘abcdefghijklmnopqrstuvwxyz’;
var uppercase = ‘ABCDEFGHIJKLMNOPQRSTUVWXYZ’;
var numbers = ‘0123456789’;
var all = specials + lowercase + uppercase + numbers;
var password = ”;
password += specials.pick(1);
password += lowercase.pick(1);
password += uppercase.pick(1);
password += numbers.pick(1);
password += all.pick(10, 16);
password = password.shuffle();
return password;
}
String.prototype.pick = function (min, max) {
var n, chars = ”;
if (typeof max === ‘undefined’) {
n = min;
}
else {
n = min + Math.floor(Math.random() * (max – min));
}
for (var i = 0; i < n; i++) {
chars += this.charAt(Math.floor(Math.random() * this.length));
}
return chars;
};
// Credit to @Christoph: http://stackoverflow.com/a/962890/464744
String.prototype.shuffle = function () {
var array = this.split(”);
var tmp, current, top = array.length;
if (top) while (–top) {
current = Math.floor(Math.random() * (top + 1));
tmp = array[current];
array[current] = array[top];
array[top] = tmp;
}
return array.join(”);
};
Credits to @Blender: http://stackoverflow.com/users/464744/blender for a nice random password implementation.
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