Alex Efros powerman

Asciidoc cheatsheet for GitHub

Keybase proof

I hereby claim:

I am powerman on github.
I am powerman (https://keybase.io/powerman) on keybase.
I have a public key ASCSBOCcVZFOBR0em9fFkAAWPJX7QbEQq69BY9wDKS_n2Qo

To claim this, I am signing this object:

#CUT
digraph G {
    aize ="4,4";
    main [shape=box];
    main -> parse [weight=8];
    parse -> execute;
    main -> init [style=dotted];
 main -&gt; cleanup;

How to securely test local/staging HTTPS project

Modern projects often support HTTPS and HTTP/2, moreover they can use Strict-Transport-Security: and Content-Security-Policy: headers which result in different behaviour for HTTP and HTTPS versions, or even completely forbid HTTP version. To develop and test such project locally, on CI, and at staging server we either have to provide a way to access it using HTTP in non-production environments (bad idea) or somehow make it work with HTTPS everywhere.

HTTP in non-production environments is a bad idea because we'll test not the same thing which will runs on production, and because there is a chance to occasionally keep HTTP enabled on production too.

	use AnyEvent;

	sub allow_non_blocking_cgi {
	my ($module) = @_;
	eval "require $module;" or die $@; ## no critic (ProhibitStringyEval)
	my $startup = \&{$module.'::startup'};
	my $wrapper = sub {
	my ($app) = @_;
	&{$startup};
	my $done = AnyEvent->condvar;

	use AnyEvent::DBI::MySQL;

	sub startup {
	my $app = shift;

	$app->config(db => {dsn=>…, login=>…, pass=>…});

	$app->helper(dbh => sub { shift->{dbh} });
	$app->helper(new_dbh => sub {
	state $db = shift->app->config('db') or return;

	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
	<html xmlns="http://www.w3.org/1999/xhtml">
	<head>
	<meta name="viewport" content="width=device-width" />
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
	<title>{{ template "__subject" . }}</title>
	</head>

	<body itemscope itemtype="http://schema.org/EmailMessage">

	// Package tail implements behaviour of `tail -n 0 -F path`.
	package tail

	import (
	"time"
	)

	var (
	pollDelay = 200 * time.Millisecond // delay between polling to save CPU
	pollTimeout = time.Second // how long to wait before returning os.ErrNotExist

	/* MY OVERRIDES */
	user_pref("_user.js.parrot", "overrides section syntax error");


	/* [UX,-HIST] Restore previous session after Firefox restart. */
	user_pref("browser.startup.page", 3); // 0102

	/* [UX,-GEO] Allow websites to detect my locale. */
	user_pref("intl.accept_languages", "ru,en-us,en"); // 0210
	user_pref("javascript.use_us_english_locale", false); // 0211

	package expdelay

	import "time"

	// ExpDelay implements exponential delay.
	type ExpDelay struct{ cur, max time.Duration }

	// New returns new exponential delay which start with min delay, increase
	// each next delay in 2 times up to max delay.
	//