Replace the anti-CSRF token with a [cross origin protection by Go](https://go.dev/doc/go1.25#nethttppkgnethttp) that uses a stateless way of verifying if a request was cross origin or not. This allows is to remove al lot of code and replace it with a few lines of code and we no longer have to hand roll this protection. The new protection uses indicators by the browser itself that indicate if the request is cross-origin, thus we no longer have to take care of ensuring the generated CSRF token is passed back to the server any request by the the browser will have send this indicator.
Resolvesforgejo/forgejo#3538
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/9830
Reviewed-by: oliverpool <oliverpool@noreply.codeberg.org>
Reviewed-by: Mathieu Fenniak <mfenniak@noreply.codeberg.org>
Co-authored-by: Gusted <postmaster@gusted.xyz>
Co-committed-by: Gusted <postmaster@gusted.xyz>
Since page templates keep changing, some pages that contained forms with
CSRF token no longer have them.
It leads to some calls of `GetCSRF` returning an empty string, which
fails the tests. Like
3269b04d61/tests/integration/attachment_test.go (L62-L63)
The test did try to get the CSRF token and provided it, but it was
empty.
(cherry picked from commit 13283873e9d523d5a5557f55d64f702c1a9f76ec)
Conflicts:
tests/integration/integration_test.go
trivial context conflict
Remove unused CSRF options, decouple "new csrf protector" and "prepare"
logic, do not redirect to home page if CSRF validation falis (it
shouldn't happen in daily usage, if it happens, redirecting to home
doesn't help either but just makes the problem more complex for "fetch")
(cherry picked from commit 1fede04b83288d8a91304a83b7601699bb5cba04)
Conflicts:
options/locale/locale_en-US.ini
tests/integration/repo_branch_test.go
trivial context conflicts
Change all license headers to comply with REUSE specification.
Fix#16132
Co-authored-by: flynnnnnnnnnn <flynnnnnnnnnn@github>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>
