Victor Tran tranvictor

Following a block from the network socket to the hard drive

Note: All links to the code are based on a fixed revision, so we can link line numbers. Code might have changed by now, nonetheless use these revisions when doing updates to this document.

Preconditons

the app was configured and started
all services registered
the discovery protocol discovered some nodes
the peermanager successfully connected a node
established an encrypted multiplexed session

Tinder API documentation

Note: this was written in April/May 2014 and the API may has definitely changed since. I have nothing to do with Tinder, nor its API, and I do not offer any support for anything you may build on top of this. Proceed with caution

http://rsty.org/

I've sniffed most of the Tinder API to see how it works. You can use this to create bots (etc) very trivially. Some example python bot code is here -> https://gist.github.com/rtt/5a2e0cfa638c938cca59 (horribly quick and dirty, you've been warned!)

	0x63825c174ab367968EC60f061753D3bbD36A0D8F - FPR
	0x4Cb01bd05E4652CbB9F312aE604f4549D2bf2C99 - APR
	0x2295fc6BC32cD12fdBb852cFf4014cEAc6d79C10 - Custom (PT)
	0x742e8BB8e6bDE9CB2DF5449f8de7510798727fB1 - APR
	0x57f8160e1c59D16C01BbE181fD94db4E56b60495 - Utility (WETH)
	0x3e9FFBA3C3eB91f501817b031031a71de2d3163B - APR
	0x0232Ba609782Cea145Ec3663F52CF7aEb4AC773C - APR
	0xa33c7c22d0BB673c2aEa2C048BB883b679fa1BE9 - APR
	0x1d57EF26709beB756e026308413f685339A73A9D - APR
	0x751Eea622edd1E3D768C18afbCaeC7DcE7750C65 - APR

	echo ">> Prepare"
	ls /etc/apt/sources.list.d/ \| grep mongodb
	if [ $? -ne 0 ]; then
	sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10
	echo "deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.0 multiverse" \| sudo tee /etc/apt/sources.list.d/mongodb-org-3.0.list
	fi

	echo ">> Updating System"
	sudo apt-get update
	# handle current bug in grub menu

	package main

	import (
	"bytes"
	"encoding/hex"
	"encoding/json"
	"io/ioutil"
	"log"
	"net/http"

	Add all the following lines to the file: “/etc/sysctl.conf”

	fs.file-max = 5000000
	net.core.netdev_max_backlog = 400000
	net.core.optmem_max = 10000000
	net.core.rmem_default = 10000000
	net.core.rmem_max = 10000000
	net.core.somaxconn = 100000
	net.core.wmem_default = 10000000
	net.core.wmem_max = 10000000

	dependencies:
	cache_directories:
	- mongodb-linux-x86_64-2.6.4
	pre:
	- if [[ ! -d mongodb-linux-x86_64-2.6.4 ]]; then wget http://downloads.mongodb.org/linux/mongodb-linux-x86_64-2.6.4.tgz && tar xvzf mongodb-linux-x86_64-2.6.4.tgz; fi
	- sudo /etc/init.d/mongodb stop
	- sudo cp mongodb-linux-x86_64-2.6.4/bin/* /usr/bin
	- sudo /etc/init.d/mongodb start

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD

	class ApplicationController < ActionController::Base
	def anonymous_id
	if !session.has_key? :session_id
	# LAME we have to write to the session to get it to initialize itself
	# the following line could be anything that writes to the session
	# except don't write to session_id, because that's what we need
	session[:id] = session[:id]
	end
	session[:session_id]
	end

	# unicorn_rails -c /srv/myapp/current/config/unicorn.rb -E production -D

	rails_env = ENV['RAILS_ENV'] \|\| 'production'

	working_directory (rails_env == 'production' ? "/srv/myapp/current" : `pwd`.gsub("\n", ""))
	worker_processes (rails_env == 'production' ? 10 : 4)
	preload_app true
	timeout 30

	if rails_env == 'production'