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How to recover lost Python source code if it's still resident in-memory

I screwed up using git ("git checkout --" on the wrong file) and managed to delete the code I had just written... but it was still running in a process in a docker container. Here's how I got it back, using https://pypi.python.org/pypi/pyrasite/ and https://pypi.python.org/pypi/uncompyle6

Attach a shell to the docker container

Install GDB (needed by pyrasite)

apt-get update && apt-get install gdb

Add the following line in `/etc/dnsmasq.conf`

dhcp-script=/etc/detect_new_device.sh

Setup sendmail to send email to your text number.

Reference:

https://wiki.openwrt.org/doc/howto/smtp.client

Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

	function decodeBase62(number) {
	var alphabet = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
	var out = 0
	var len = number.length - 1
	for (var t = 0; t <= len; t++) {
	out = out + alphabet.indexOf(number.substr(t, 1)) * Math.pow(62, len - t)
	}
	return out
	}

	#EXTM3U name="四川电信IPTV"
	#EXTINF:-1,CCTV-1高清
	http://192.168.2.2/rtp/239.93.0.184:5140
	#EXTINF:-1,CCTV-2高清
	http://192.168.2.2/rtp/239.93.1.23:6000
	#EXTINF:-1,CCTV-3高清
	http://192.168.2.2/rtp/239.93.1.11:2223
	#EXTINF:-1,CCTV-5高清
	http://192.168.2.2/rtp/239.93.1.12:2224
	#EXTINF:-1,CCTV-6高清

	#!/usr/bin/python
	# -- coding: utf-8 --
	# __author__ = 'ihciah'
	# cid_hash_file function from https://github.com/binux/lixian.xunlei/blob/master/libs/tools.py
	# Gist: https://gist.github.com/ihciah/30eda05ca36ee9f9f190067538b0ae04

	import hashlib
	import inotify.adapters
	import os
	import sys

	FROM python:2.7

	ENV VERSION 1.0.11

	RUN apt-get update && apt-get install -y \
	git --no-install-recommends

	RUN mkdir /app

	WORKDIR /app

	// disable iitc plugin if it's on
	// go to https://www.ingress.com/intel
	// open console and paste in the code below, press enter
	// join https://t.me/passcodes for more passcodes

	// add jquery
	var jq = document.createElement('script');
	jq.src = "https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js";
	document.getElementsByTagName('head')[0].appendChild(jq);

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">
	<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
	</head>
	<body>

	<script>

	#!/bin/bash

	# CHANGE THESE
	auth_email="[email protected]"
	auth_key="c2547eb745079dac9320b638f5e225cf483cc5cfdda41" # found in cloudflare account settings
	zone_name="example.com"
	record_name="www.example.com"

	# MAYBE CHANGE THESE
	ip=$(curl -s http://ipv4.icanhazip.com)