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/*
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 user
import (
"encoding/json"
"errors"
"net/http"
"strings"
"github.com/gin-gonic/gin"
"github.com/superseriousbusiness/gotosocial/internal/api"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
)
// FollowingGETHandler returns a collection of URIs for accounts that the target user follows, formatted so that other AP servers can understand it.
func (m *Module) FollowingGETHandler(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")
api.ErrorHandler(c, gtserror.NewErrorBadRequest(err, err.Error()), m.processor.InstanceGet)
return
}
format, err := api.NegotiateAccept(c, api.HTMLOrActivityPubHeaders...)
if err != nil {
api.ErrorHandler(c, gtserror.NewErrorNotAcceptable(err, err.Error()), m.processor.InstanceGet)
return
}
if format == string(api.TextHTML) {
// redirect to the user's profile
c.Redirect(http.StatusSeeOther, "/@"+requestedUsername)
return
}
resp, errWithCode := m.processor.GetFediFollowing(transferContext(c), requestedUsername, c.Request.URL)
if errWithCode != nil {
api.ErrorHandler(c, errWithCode, m.processor.InstanceGet)
return
}
b, err := json.Marshal(resp)
if err != nil {
api.ErrorHandler(c, gtserror.NewErrorInternalError(err), m.processor.InstanceGet)
return
}
c.Data(http.StatusOK, format, b)
}
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