net/http: add support for SameSite option in http.Cookie

The same-site cookie attribute prevents a cookie from being sent along with
cross-site requests. The main goal is mitigate the risk of cross-origin
information leakage and provides some protection against cross-site request
forgery attacks.

This change adds the option to http.Cookie so it can be stored and
passed to HTTP clients.

Spec: https://tools.ietf.org/html/draft-ietf-httpbis-cookie-same-site-00

Fixes #15867

Based on
https://github.com/reedloden/go/commit/eb31a0f063c80058bbb3abff4ca09b3565985500
by Reed Loden <reed@hackerone.com>

Change-Id: I98c8a9a92358b2f632990576879759e3aff38cff
Reviewed-on: https://go-review.googlesource.com/79919
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
3 files changed
tree: 9cebc822e60592dbde785bcb3fe3f390f1160f12
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. CONTRIBUTING.md
  12. CONTRIBUTORS
  13. favicon.ico
  14. LICENSE
  15. PATENTS
  16. README.md
  17. robots.txt
README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

Gopher image Gopher image by Renee French, licensed under Creative Commons 3.0 Attributions license.

Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.

Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.

Download and Install

Binary Distributions

Official binary distributions are available at https://golang.org/dl/.

After downloading a binary release, visit https://golang.org/doc/install or load doc/install.html in your web browser for installation instructions.

Install From Source

If a binary distribution is not available for your combination of operating system and architecture, visit https://golang.org/doc/install/source or load doc/install-source.html in your web browser for source installation instructions.

Contributing

Go is the work of thousands of contributors. We appreciate your help!

To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html

Note that the Go project uses the issue tracker for bug reports and proposals only. See https://golang.org/wiki/Questions for a list of places to ask questions about the Go language.