Gene Semerenko genesem

GPL3 LICENSE SYNOPSIS

TL;DR* Here's what the license entails:

1. Anyone can copy, modify and distribute this software.
2. You have to include the license and copyright notice with each and every distribution.
3. You can use this software privately.
4. You can use this software for commercial purposes.
5. If you dare build your business solely from this code, you risk open-sourcing the whole code base.

When setting up (that's immediately when user enables it in settings) Opera VPN sends few API requests to https://api.surfeasy.com to obtain credentials and proxy IPs, see below, also see The Oprah Proxy.

The browser then talks to a proxy de0.opera-proxy.net (when VPN location is set to Germany), it's IP address can only be resolved from within Opera when VPN is on, it's 185.108.219.42 (or similar, see below). It's an HTTP/S proxy which requires auth.

When loading a page with Opera VPN enabled, the browser sends a lot of requests to de0.opera-proxy.net with Proxy-Authorization request header.

The Proxy-Authorization header decoded: CC68FE24C34B5B2414FB1DC116342EADA7D5C46B:9B9BE3FAE674A33D1820315F4CC94372926C8210B6AEC0B662EC7CAD611D86A3 (that's sha1(device_id):device_password, where device_id and device_password come from the POST /v2/register_device API call, please note that this decoded header is from another Opera installation and thus contains

	name old time/op new time/op delta
	BinaryTree17 5.44s ± 2% 3.27s ± 2% -39.90% (p=0.000 n=20+19)
	Fannkuch11 4.95s ± 2% 2.68s ± 2% -45.87% (p=0.000 n=20+20)
	FmtFprintfEmpty 142ns ± 2% 49ns ± 3% -65.39% (p=0.000 n=20+18)
	FmtFprintfFloat 765ns ± 2% 260ns ± 2% -66.02% (p=0.000 n=20+20)
	FmtFprintfInt 341ns ± 2% 95ns ± 2% -72.08% (p=0.000 n=19+20)
	FmtFprintfIntInt 554ns ± 2% 150ns ± 1% -72.95% (p=0.000 n=20+19)
	FmtFprintfPrefixedInt 497ns ± 3% 178ns ± 3% -64.12% (p=0.000 n=20+20)
	FmtFprintfString 466ns ± 2% 86ns ± 3% -81.54% (p=0.000 n=20+20)
	FmtManyArgs 2.23µs ± 2% 0.59µs ± 1% -73.46% (p=0.000 n=20+17)

	// Create our own MyResponseWriter to wrap a standard http.ResponseWriter
	// so we can store the status code.
	type MyResponseWriter struct {
	status int
	http.ResponseWriter
	}

	func NewMyResponseWriter(res http.ResponseWriter) *MyResponseWriter {
	// Default the status code to 200
	return &MyResponseWriter{200, res}

	location /resize {
	alias /tmp/nginx/resize;
	set $width 150;
	set $height 100;
	set $dimens "";

	if ($uri ~* "^/resize_(\d+)x(\d+)/(.*)" ) {
	set $width $1;
	set $height $2;
	set $image_path $3;

	#!/bin/bash

	MAILFILE=/tmp/mail.$$
	CURLFILE=/tmp/mail.$$.curl
	cat > $MAILFILE
	curl -i -F message=@$MAILFILE "http://localhost/incoming_messages" > $CURLFILE
	if grep 'HTTP/1.1 204 No Content' $CURLFILE
	then
	rm -f $CURLFILE $MAILFILE
	fi


	# a two ways: classic and with recoursive function


	def fibonacci():
	'''classic implementation'''
	a, b = 0, 1
	while True:
	yield a
	a, b = b, a + b

	# to generate your dhparam.pem file, run in the terminal
	openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

	/*

	Watch out, os.IsExist(err) != !os.IsNotExist(err)

	They are error checkers, so use them only when err != nil, and you want to handle
	specific errors in a different way!

	Their main purpose is to wrap around OS error messages for you, so you don't have to test
	for Windows/Unix/Mobile/other OS error messages for "file exists/directory exists" and
	"file does not exist/directory does not exist"