Bryan Walters GameGamer43

SKS Keyserver Network Under Attack

This work is released under a Creative Commons Attribution-NoDerivatives 4.0 International License.

Terminological Note

"OpenPGP" refers to the OpenPGP protocol, in much the same way that HTML refers to the protocol that specifies how to write a web page. "GnuPG", "SequoiaPGP", "OpenPGP.js", and others are implementations of the OpenPGP protocol in the same way that Mozilla Firefox, Google Chromium, and Microsoft Edge refer to software packages that process HTML data.

Who am I?

Moved to Shopify/graphql-design-tutorial

Scaling your API with rate limiters

The following are examples of the four types rate limiters discussed in the accompanying blog post. In the examples below I've used pseudocode-like Ruby, so if you're unfamiliar with Ruby you should be able to easily translate this approach to other languages. Complete examples in Ruby are also provided later in this gist.

In most cases you'll want all these examples to be classes, but I've used simple functions here to keep the code samples brief.

Request rate limiter

This uses a basic token bucket algorithm and relies on the fact that Redis scripts execute atomically. No other operations can run between fetching the count and writing the new count.

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

React lifecycle cheatsheet

Method	Side effects¹	State updates²	Example uses
Mounting
`componentWillMount`		✓	Constructor equivalent for `createClass`
`render`			Create and return element(s)
`componentDidMount`	✓	✓	DOM manipulations, network requests, etc.
Updating
`componentWillReceiveProps`		✓	Update `state` based on changed `props`

	import AppKit
	import Charts
	import CoreVideo
	import SwiftUI

	struct FPSMeasurement: Identifiable, Equatable {
	let id: Int
	let fps: Int

	static func == (lhs: FPSMeasurement, rhs: FPSMeasurement) -> Bool {

	module Entry::TrackerBlocking
	extend ActiveSupport::Concern

	included do
	has_many :blocked_trackers
	end

	email_service_blockers = {
	"ActiveCampaign" => /lt\.php(.*)?l\=open/,
	"AWeber" => "openrate.aweber.com",

	Mute these words in your settings here: https://twitter.com/settings/muted_keywords

	ActivityTweet
	generic_activity_highlights
	generic_activity_momentsbreaking
	RankedOrganicTweet
	suggest_activity
	suggest_activity_feed
	suggest_activity_highlights
	suggest_activity_tweet

	import React, { Component, Placeholder } from 'react';
	import { unstable_deferredUpdates } from 'react-dom';
	import logo from './logo.svg';
	import {createCache, createResource} from 'simple-cache-provider';
	import { track } from "interaction-tracking";

	const fetchUserList = () =>
	fetch('https://jsonplaceholder.typicode.com/users')
	.then(data => data.json());

	Following are my steps to build the ARM64 version of xnu-4570.1.46, hope this is helpfull for saving time.
	1. Use Xcode 9.0
	2. Preparation is same as macOS, and there is a guide: https://0xcc.re/building-xnu-kernel-macosx-sierrra-10-12-x/
	3. There is an ARM64 version libfirehose: https://github.com/Proteas/install_firehose_lib
	4. Copy and edit the ARM64 config(CFLAGS, LDFLAGS) from darwin-on-arm/xnu to your target project
	5. Example CFLAGS: -Darm64 -DARM64 -D__arm64__ -D__ARM64__ -DLP64 -DCONFIG_EMBEDDED -mkernel -DARM64_BOARD_CONFIG_T8011=1
	6. Fix compiling stage errors by directly importing the missing headers or editing the code
	7. Fix linking stage errors by implementing place holder funcitons for: chudxnu_cpu_alloc, etc
	8. If missing symbol __divti3 in linking stage, get the runtime from llvm.