sefgit’s gists

sefgit / validateInitData.py

Created September 12, 2025 23:38 — forked from Malith-Rukshan/validateInitData.py

Validate Init data of Telegram Mini-App | TypeScript & Python

	import hmac

	def checkValidateInitData(hash_str, init_data, token, c_str="WebAppData"):
	"""
	Validates the data received from the Telegram web app, using the
	method documented here:
	https://core.telegram.org/bots/webapps#validating-data-received-via-the-web-app

	hash_str - the has string passed by the webapp
	init_data - the query string passed by the webapp

sefgit / demo-manifest.json

Last active September 14, 2025 06:48

demo-manifest.json

	{
	"url": "https://mini-app.local:5173",
	"name": "CryptoX",
	"iconUrl": "https://logoipsum.com/logoipsum-avatar.png"
	}

sefgit / gist:4d92daa055fa6e4666dc24c6e060ad90

Created August 25, 2025 01:17

vite Buffer issue

	npm install buffer

	import { Buffer } from 'buffer';
	globalThis.Buffer = Buffer;



	npm install -D vite-plugin-node-polyfills

sefgit / sha512.html

Created August 18, 2025 13:47 — forked from grazerblade/sha512.html

SHA512 hash converter via Javascript (from the orig cryptostorm.is website)

	<meta name="description" content="Easily calculate SHA-512 algorithms" />
	<script type="text/javascript" src="assets/js/sha512.js">
	</script>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<script type="text/javascript">
	//<![CDATA[

	function calcSHA()
	{
	calcHash("SHA-512");

sefgit / simulateNativeLink.js

Created August 14, 2025 12:59 — forked from smitroshin/simulateNativeLink.js

Simulate native link click programmatically in React.js

	const simulateNativeLink = (rowData, e) => {
	if (e.ctrlKey \|\| e.metaKey \|\| e.which === 2 \|\| e.button === 4) {
	const link = document.createElement('a');
	link.target = '_blank';
	link.rel = 'noopener noreferrer';
	link.href = `/my-orders/${rowData.id}`;
	link.click();
	} else {
	history.push(`/my-orders/${rowData.id}`);
	}

sefgit / ImpPubKeyFromPriv.c

Created August 4, 2025 05:08 — forked from aleks-f/ImpPubKeyFromPriv.c

CryptoAPI: import public key from private key PEM

	#include "windows.h"
	#include "wincrypt.h"
	#include "stdio.h"

	/* This code example:

	1) creates a Crypto Service Provider
	2) generates keys
	3) extracts public key
	4) exports private key into PEM

sefgit / gist:58899aa240c14ef2fda87547bbff837e

Created July 24, 2025 04:34

unblock files

	dir "." -Recurse \| Unblock-File

	Get-ChildItem "." -Recurse -Include *.dll \| Unblock-File

sefgit / scroll.html

Last active June 27, 2025 10:21

auto scroll

sefgit / websocket-hook.js

Created June 22, 2025 10:42

websocket hook

	//
	// https://stackoverflow.com/questions/70205816/intercept-websocket-messages
	//
	function listen(fn){
	fn = fn \|\| console.log;

	let property = Object.getOwnPropertyDescriptor(MessageEvent.prototype, "data");

	const data = property.get;

sefgit / websocket_proxy.js

Created June 22, 2025 02:35 — forked from Checksum/websocket_proxy.js

Intercepting WebSockets in the browser using JavaScript

	const WebSocketProxy = new Proxy(window.WebSocket, {
	construct(target, args) {
	console.log("Proxying WebSocket connection", ...args);
	const ws = new target(...args);

	// Configurable hooks
	ws.hooks = {
	beforeSend: () => null,
	beforeReceive: () => null
	};