gotosocial/internal/api/security/flocblock.go
psa c1824b034b
[chore] Replace blocking Floc with Topics. (#1068)
Google abandoned Floc in favour of Topics and changed the
necessary permissions policy. Currently, the Floc policy will
block Topics. This change includes switching to the updated
policy to be ahead of Google abandoning recognising the Floc
policy.

Update the function documentation to include the current relevant
documentation.
2022-11-17 15:04:06 +01:00

31 lines
1.3 KiB
Go

/*
GoToSocial
Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package security
import "github.com/gin-gonic/gin"
// FlocBlock is a middleware that prevents google chrome cohort tracking by
// writing the Permissions-Policy header after all other parts of the request
// have been completed. Floc was replaced by Topics in 2022 and the spec says
// that interest-cohort will also block Topics (as of 2022-Nov).
// See: https://smartframe.io/blog/google-topics-api-everything-you-need-to-know
// See: https://github.com/patcg-individual-drafts/topics
func (m *Module) FlocBlock(c *gin.Context) {
c.Header("Permissions-Policy", "browsing-topics=()")
}