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Diffstat (limited to 'internal/middleware/extraheaders.go')
| -rw-r--r-- | internal/middleware/extraheaders.go | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/internal/middleware/extraheaders.go b/internal/middleware/extraheaders.go new file mode 100644 index 000000000..c7d4dd3e2 --- /dev/null +++ b/internal/middleware/extraheaders.go @@ -0,0 +1,37 @@ +/* + 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 middleware + +import "github.com/gin-gonic/gin" + +// ExtraHeaders returns a new gin middleware which adds various extra headers to the response. +func ExtraHeaders() gin.HandlerFunc { + return func(c *gin.Context) { + // Inform all callers which server implementation this is. + c.Header("Server", "gotosocial") + // Prevent google chrome cohort tracking. Originally this was referred + // to as FlocBlock. 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 + c.Header("Permissions-Policy", "browsing-topics=()") + } +} |