Category Archives: JavaScript

AES decrypt in postman

Posted on 2023 年 05 月 31 日 by cowman.chiang

sample code:

var CryptoJS = require("crypto-js"); 
let secretKey = 'yourSecretKey'; 

function decrypt(aesStr, key) { 
    return CryptoJS.AES.decrypt( 
        aesStr, 
        CryptoJS.enc.Utf8.parse(padding(key)), 
        { 
            mode: CryptoJS.mode.ECB, 
            padding: CryptoJS.pad.Pkcs7 
        } 
    ).toString(CryptoJS.enc.Utf8) 
} 

function padding(key) { 
    return key.padEnd(32, '\0'); 
} 

//decrypt("encryptedData", secretKey)

var CryptoJS = require("crypto-js");

let secretKey = 'yourSecretKey';

function decrypt(aesStr, key) {

return CryptoJS.AES.decrypt(

aesStr,

CryptoJS.enc.Utf8.parse(padding(key)),

{

mode: CryptoJS.mode.ECB,

padding: CryptoJS.pad.Pkcs7

}

).toString(CryptoJS.enc.Utf8)

}

function padding(key) {

return key.padEnd(32, '\0');

}

//decrypt("encryptedData", secretKey)

Here we choose AES-256 to encrypt / decrypt the secure information. When using AES, the length of the secretKey is important. The length of secretKey in AES-128 is 16 bits, and in AES-256 is 32 bits. And … Continue reading →

Posted in JavaScript, Postman | Comments Off

[JavaScript] cannot call methods on [Object] prior to initialization; attempted to call method ‘refresh’

Posted on 2018 年 05 月 29 日 by cowman.chiang

try to force initialize the object first. stackOverflow: selectmenu (‘refresh’, true)

Posted in JavaScript | Leave a comment

[JavaScript][jQuery] How to enable/disable select field?

Posted on 2015 年 12 月 15 日 by cowman.chiang

[jQuery]

$('input[type=radio][name=ldap-sync-type]').change(function() {
    if (this.value == '0') {
        $("select[name=day-option]").prop("disabled", true);
        $("select[name=clock-option]").prop("disabled", true);
    } else if (this.value == '1') {
        $("select[name=day-option]").prop("disabled", false);
        $("select[name=clock-option]").prop("disabled", false);
    }
});

$('input[type=radio][name=ldap-sync-type]').change(function() {

if (this.value == '0') {

$("select[name=day-option]").prop("disabled", true);

$("select[name=clock-option]").prop("disabled", true);

} else if (this.value == '1') {

$("select[name=day-option]").prop("disabled", false);

$("select[name=clock-option]").prop("disabled", false);

}

});

[JavaScript]

$('input[type=radio][name=ldap-sync-type]').change(function() {
    if (this.value == '0') {
        $("select[name=day-option]").attr("disabled", "disabled");
        $("select[name=clock-option]").attr("disabled", "disabled");
    } else if (this.value == '1') {
        $("select[name=day-option]").removeAttr("disabled");
        $("select[name=clock-option]").removeAttr("disabled");
    }
});

$('input[type=radio][name=ldap-sync-type]').change(function() {

if (this.value == '0') {

$("select[name=day-option]").attr("disabled", "disabled");

$("select[name=clock-option]").attr("disabled", "disabled");

} else if (this.value == '1') {

$("select[name=day-option]").removeAttr("disabled");

$("select[name=clock-option]").removeAttr("disabled");

}

});

Posted in JavaScript, jQuery | Leave a comment

Javascript的月份是從0開始…

Posted on 2014 年 12 月 16 日 by cowman.chiang

受教了~修正 etherpad 的日期顯示以 “yyyy-mm-mm hh-mm” 顯示的過程中發現月份總是少一個月可是看 code 又沒有什麼問題所以用 google 搜尋 “jquery + 少1個月” 及 “javascript + 少1個月” 發現了是 javascript 對於月份是少一個月 Orz… 所以 etherpad 的原本的寫法還不錯，貼上來註記一下

var converterPad = function (UNIX_timestamp) {
    var a = new Date(UNIX_timestamp);
    //原本的寫法是用英文顯示
    //var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
    //後來改以數字顯示
    var months = ['01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12'];
    var year = a.getFullYear();
    var month = months[a.getMonth()];

    //這邊是原本想直接用function直接抓值，結果發現都少一個月，只好自己加1
    //var temp = a.getMonth() + 1;
    //var month = (( temp + 1 < 10) ? "0" : "") + temp;

    var date = (( a.getDate() < 10) ? "0" : "") + a.getDate();
    var hour = (( a.getHours() < 10) ? "0" : "") + a.getHours();
    var min = ((a.getMinutes() < 10) ? "0" : "") + a.getMinutes();
    //return date + '. ' + month + ' ' + year + ' ' + hour + ':' + min + ' ';
    return year + '-' + month + '-' + date + ' ' + hour  + ':' + min;
};

var converterPad = function (UNIX_timestamp) {

var a = new Date(UNIX_timestamp);

//原本的寫法是用英文顯示

//var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];

//後來改以數字顯示

var months = ['01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12'];

var year = a.getFullYear();

var month = months[a.getMonth()];

//這邊是原本想直接用function直接抓值，結果發現都少一個月，只好自己加1

//var temp = a.getMonth() + 1;

//var month = (( temp + 1 < 10) ? "0" : "") + temp;

var date = (( a.getDate() < 10) ? "0" : "") + a.getDate();

var hour = (( a.getHours() < 10) ? "0" : "") + a.getHours();

var min = ((a.getMinutes() < 10) ? "0" : "") + a.getMinutes();

//return date + '. ' + month + ' ' + year + ' ' + hour + ':' + min + ' ';

return year + '-' + month + '-' + date + ' ' + hour + ':' + min;

};

Posted in etherpad, JavaScript | Leave a comment

(滑鼠位置) Row顯目變色處理

Posted on 2014 年 02 月 18 日 by cowman.chiang

這主要是透過 javascript 來讓滑鼠游標存在的 Row 變顏色原始碼如下 (參考Change table row background colour on mouse over-move using JavaScript