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field_type.hashed-text.js
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field_type.hashed-text.js
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var Sealious = require('sealious');
var Promise = require("bluebird");
var crypto = require("crypto");
var field_type_hashed_text = new Sealious.ChipTypes.FieldType({
name: "hashed-text",
extends: "text",
get_description: function(context, params){
var message = "Hash text with chosen algorithm (default md5)";
if (params && Object.keys(params).length > 0) {
message += " with ";
if (params.digits) {
message += "required digits: " + params.digits + " ";
}
if (params.capitals) {
message += "required capitals: " + params.capitals + " ";
}
}
return message;
},
is_proper_value: function(accept, reject, context, params, new_value){
var pattern_array = [];
if (params instanceof Object){
if (params.required_digits){
pattern_array.push(new RegExp("(.*[0-9]+.*){" + params.required_digits + "}"));
}
if (params.required_capitals){
pattern_array.push(new RegExp("(.*[A-Z]+.*){" + params.required_capitals + "}"));
}
var isAccepted = pattern_array.map(n => n.test(new_value)).reduce( (a,b) => a && b, true);
if (isAccepted) {
accept();
}
else {
var digits = params.required_digits || "0";
var capitals = params.required_capitals || "0";
reject("It didn't fulfill the requirements: required digits - " + digits + ", required capitals " + capitals);
}
}
else {
accept();
}
},
encode: function(context, params, value_in_code){
var salt = "", algorithm = "md5";
if (params) {
if (params.salt){
salt = params.salt;
}
else if (params.algorithm){
algorithm = params.algorithm;
}
}
return new Promise(function(resolve, reject){
crypto.pbkdf2(value_in_code, salt, 4096, 64, algorithm, function(err, key){
if (err){
reject(err);
} else {
resolve(key.toString('hex'))
}
});
})
}
})

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