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Web Server TLS/SSL Cipher Suite Setting - Best Practice

nginx seting:

ssl_prefer_server_ciphers on;
ssl_ciphers 'ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-CHACHA20-POLY1305:ECDHE-ARIA256-GCM-SHA384:DHE-RSA-ARIA256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:ECDHE-ARIA128-GCM-SHA256:DHE-RSA-ARIA128-GCM-SHA256:DHE-RSA-AES256-CCM8:DHE-RSA-AES256-CCM:DHE-RSA-AES128-CCM8:DHE-RSA-AES128-CCM';

---

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ZIP Slip - File Generation Sample Code by PHP

Sample Code

<?php

$zip = new ZipArchive();
$filename = "./zip-slip-test.zip";

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JAVA HTTP Client Sample codes

HttpURLConnection

/**
 * @see https://docs.oracle.com/javase/8/docs/api/java/net/URLConnection.html
 * @see https://docs.oracle.com/javase/8/docs/api/java/net/HttpURLConnection.html
 * @see https://www.baeldung.com/java-http-request
 */

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Mobile App Deep Link Table (URL Scheme | App link | Universal link)

Table

App	Andriod URL Scheme	App link	iOS URL Scheme	Universal link
LINE	line://	https://lin.ee/f6fcOKR	line://	https://lin.ee/f6fcOKR
LINE LIFF	line://app/1431716824-lWG5eryW?to=/cgm	https://liff.line.me/1431716824-lWG5eryW?to=/cgm	line://app/1431716824-lWG5eryW?to=/cgm	https://liff.line.me/1431716824-lWG5eryW?to=/cgm
UberEats	ubereats://	https://www.ubereats.com	ubereats://	https://www.ubereats.com
Chrome	chrome://		chrome://

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CURL timeout error handling (Connection/Operation timed out)

CURL parameter --max-time includes --connect-timeout to separate the timeout of the handshake phase.

CURL - Timeouts · Everything curl

In addition, CURL can distinguish timeout errors at different stages: "connection timeout" and "operation timeout".

For example, CURL command with 5 second connection timeout and 25 second maximum timeout setting:

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Public key's fingerprint formula

The public key file (key.pub) contains the binary key that is packaged into a base64 string.

Formula

The public key's fingerprint formula:

# SHA256

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LINE Pay API (v3) sample codes in multi-languages

• PHP
• C#
• Python
• Ruby
• Golang
• Java
• NodeJS

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Yii2 App Basic Environment Setting Switch for WEB & Console

Server Variable Solution

Add server variable condition for ./web/index.php & ./yii:

if (isset($_SERVER['APP_ENV']) && $_SERVER['APP_ENV']=='production') {

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JavaScript HTML Entities Encode & Decode

Like PHP's htmlentities()/htmlspecialchars() functions, JavaScript is easy to implement it.

Encode

/**

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JavaScript nl2br & br2nl functions

The exchange of new line & br HTML tag could refer to PHP - nl2br() function, which uses to inserts HTML line breaks before all newlines in a string.

These JavaScript functions consider whether to use insert or replace to handle the swap.

nl2br