gotosocial/internal/api/activitypub/publickey/publickeyget.go

70 lines
2.3 KiB
Go

// 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 publickey
import (
"errors"
"net/http"
"strings"
"github.com/gin-gonic/gin"
apiutil "github.com/superseriousbusiness/gotosocial/internal/api/util"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
)
// PublicKeyGETHandler should be served at eg https://example.org/users/:username/main-key.
//
// The goal here is to return a MINIMAL activitypub representation of an account
// in the form of a vocab.ActivityStreamsPerson. The account will only contain the id,
// public key, username, and type of the account.
func (m *Module) PublicKeyGETHandler(c *gin.Context) {
// usernames on our instance are always lowercase
requestedUsername := strings.ToLower(c.Param(UsernameKey))
if requestedUsername == "" {
err := errors.New("no username specified in request")
apiutil.ErrorHandler(c, gtserror.NewErrorBadRequest(err, err.Error()), m.processor.InstanceGetV1)
return
}
contentType, err := apiutil.NegotiateAccept(c, apiutil.ActivityPubOrHTMLHeaders...)
if err != nil {
apiutil.ErrorHandler(c, gtserror.NewErrorNotAcceptable(err, err.Error()), m.processor.InstanceGetV1)
return
}
if contentType == string(apiutil.TextHTML) {
// redirect to the user's profile
c.Redirect(http.StatusSeeOther, "/@"+requestedUsername)
return
}
resp, errWithCode := m.processor.Fedi().UserGet(c.Request.Context(), requestedUsername, c.Request.URL)
if errWithCode != nil {
apiutil.ErrorHandler(c, errWithCode, m.processor.InstanceGetV1)
return
}
// Encode JSON HTTP response.
apiutil.EncodeJSONResponse(
c.Writer,
c.Request,
http.StatusOK,
contentType,
resp,
)
}