unicorn Ruby/Rack server user+dev discussion/patches/pulls/bugs/help
 help / color / Atom feed
From: Sam Saffron <sam.saffron@gmail.com>
To: unicorn-public <unicorn-public@bogomips.org>
Subject: env reuse and hijack
Date: Wed, 29 Nov 2017 11:13:57 +1100
Message-ID: <CAAtdryPG3nLuyo0jxfYW1YHu1Q+ZpkLkd4KdWC8vA46B5haZxw@mail.gmail.com> (raw)

I was reading through unicorn today and noticed that it uses
`HttpParser_clear` to clear up env between requests as opposed to
allocating a new `env` object.

This is generally fine, but if you hijack a request you may want to
still look at env after this is done leading to situations where you
are looking at the wrong env by the time you are dealing with the
hijacked request

I guess I have 2 questions

1. Should Rack specify that env must be "re-initialized" if for any
reason a request is hijacked?

2. Should unicorn allow you to opt for env "recycle" via a rack key?

I don't really have the answers here, my simplest course of action is
simple to clone all the key/value pairs in env on to a new hash when I
hijack, but it feels wasteful.

             reply index

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-29  0:13 Sam Saffron [this message]
2017-11-29  1:03 ` Eric Wong
2017-12-05  1:53   ` Eric Wong
2017-12-16  1:49     ` [PATCH] avoid reusing env on hijack Eric Wong

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://bogomips.org/unicorn/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAAtdryPG3nLuyo0jxfYW1YHu1Q+ZpkLkd4KdWC8vA46B5haZxw@mail.gmail.com \
    --to=sam.saffron@gmail.com \
    --cc=unicorn-public@bogomips.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

unicorn Ruby/Rack server user+dev discussion/patches/pulls/bugs/help

Archives are clonable:
	git clone --mirror https://bogomips.org/unicorn-public
	git clone --mirror http://ou63pmih66umazou.onion/unicorn-public

Newsgroups are available over NNTP:
	nntp://news.public-inbox.org/inbox.comp.lang.ruby.unicorn
	nntp://ou63pmih66umazou.onion/inbox.comp.lang.ruby.unicorn

 note: .onion URLs require Tor: https://www.torproject.org/

AGPL code for this site: git clone https://public-inbox.org/ public-inbox