/
util.js
37 lines (30 loc) · 1000 Bytes
/
util.js
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var crypto = require('crypto');
module.exports={
pad: function(str, len, pad, dir) {
var STR_PAD_LEFT = 1;
var STR_PAD_RIGHT = 2;
var STR_PAD_BOTH = 3;
if (typeof(len) == "undefined") { var len = 0; }
if (typeof(pad) == "undefined") { var pad = ' '; }
if (typeof(dir) == "undefined") { var dir = STR_PAD_RIGHT; }
if (len + 1 >= str.length) {
switch (dir){
case STR_PAD_LEFT:
str = Array(len + 1 - str.length).join(pad) + str;
break;
case STR_PAD_BOTH:
var right = Math.ceil((padlen = len - str.length) / 2);
var left = padlen - right;
str = Array(left+1).join(pad) + str + Array(right+1).join(pad);
break;
default:
str = str + Array(len + 1 - str.length).join(pad);
break;
} // switch
}
return str;
},
hash: function(str){
return require('crypto').createHash('sha1').update(str+"TEHWDOEIUF").digest('hex');
}
}