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new.go
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new.go
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// SPDX-License-Identifier: AGPL-3.0-only
//
// 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, version 3.
//
// 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 <https://www.gnu.org/licenses/>
//go:build !dev
package origin
import (
"net/http"
"github.com/gofiber/fiber/v2"
"github.com/bangumi/server/internal/web/res"
"github.com/bangumi/server/internal/web/res/code"
)
func New(allowed string) fiber.Handler {
return func(ctx *fiber.Ctx) error {
if ctx.Method() == http.MethodGet {
return ctx.Next()
}
origin := ctx.Get(fiber.HeaderOrigin)
if origin == "" {
return res.HTTPError(ctx, code.BadRequest, "empty origin is not allowed")
}
if origin != allowed {
return res.HTTPError(ctx, code.BadRequest, "cross-site request is not allowed")
}
return ctx.Next()
}
}