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// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// 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 nodeinfo
import (
"net/http"
"github.com/gin-gonic/gin"
apiutil "github.com/superseriousbusiness/gotosocial/internal/api/util"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/middleware"
"github.com/superseriousbusiness/gotosocial/internal/processing"
)
const (
// NodeInfoWellKnownPath is the base path for serving responses
// to nodeinfo lookup requests, minus the '.well-known' prefix.
NodeInfoWellKnownPath = "/nodeinfo"
)
type Module struct {
processor *processing.Processor
}
// New returns a new nodeinfo module
func New(processor *processing.Processor) *Module {
return &Module{
processor: processor,
}
}
func (m *Module) Route(attachHandler func(method string, path string, f ...gin.HandlerFunc) gin.IRoutes) {
// If instance is configured to serve instance stats
// faithfully at nodeinfo, we should allow robots to
// crawl nodeinfo endpoints in a limited capacity.
// In all other cases, disallow everything.
var robots gin.HandlerFunc
if config.GetInstanceStatsMode() == config.InstanceStatsModeServe {
robots = middleware.RobotsHeaders("allowSome")
} else {
robots = middleware.RobotsHeaders("")
}
// Attach handler, injecting robots http header middleware.
attachHandler(http.MethodGet, NodeInfoWellKnownPath, robots, m.NodeInfoWellKnownGETHandler)
}
// NodeInfoWellKnownGETHandler swagger:operation GET /.well-known/nodeinfo nodeInfoWellKnownGet
//
// Returns a well-known response which redirects callers to `/nodeinfo/2.0`.
//
// eg. `{"links":[{"rel":"http://nodeinfo.diaspora.software/ns/schema/2.0","href":"http://example.org/nodeinfo/2.0"}]}`
// See: https://nodeinfo.diaspora.software/protocol.html
//
// ---
// tags:
// - .well-known
//
// produces:
// - application/json
//
// responses:
// '200':
// schema:
// "$ref": "#/definitions/wellKnownResponse"
func (m *Module) NodeInfoWellKnownGETHandler(c *gin.Context) {
if _, err := apiutil.NegotiateAccept(c, apiutil.JSONAcceptHeaders...); err != nil {
apiutil.ErrorHandler(c, gtserror.NewErrorNotAcceptable(err, err.Error()), m.processor.InstanceGetV1)
return
}
resp, errWithCode := m.processor.Fedi().NodeInfoRelGet(c.Request.Context())
if errWithCode != nil {
apiutil.ErrorHandler(c, errWithCode, m.processor.InstanceGetV1)
return
}
// Encode JSON HTTP response.
apiutil.EncodeJSONResponse(
c.Writer,
c.Request,
http.StatusOK,
apiutil.AppJSON,
resp,
)
}
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