77 lines
2.4 KiB
Go
77 lines
2.4 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package user
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"github.com/gin-gonic/gin"
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"github.com/sirupsen/logrus"
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)
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// UsersGETHandler should be served at https://example.org/users/:username.
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//
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// The goal here is to return the activitypub representation of an account
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// in the form of a vocab.ActivityStreamsPerson. This should only be served
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// to REMOTE SERVERS that present a valid signature on the GET request, on
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// behalf of a user, otherwise we risk leaking information about users publicly.
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//
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// And of course, the request should be refused if the account or server making the
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// request is blocked.
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func (m *Module) UsersGETHandler(c *gin.Context) {
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l := logrus.WithFields(logrus.Fields{
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"func": "UsersGETHandler",
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"url": c.Request.RequestURI,
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})
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requestedUsername := c.Param(UsernameKey)
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if requestedUsername == "" {
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c.JSON(http.StatusBadRequest, gin.H{"error": "no username specified in request"})
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return
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}
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format, err := negotiateFormat(c)
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if err != nil {
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c.JSON(http.StatusNotAcceptable, gin.H{"error": fmt.Sprintf("could not negotiate format with given Accept header(s): %s", err)})
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return
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}
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l.Tracef("negotiated format: %s", format)
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ctx := transferContext(c)
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user, errWithCode := m.processor.GetFediUser(ctx, requestedUsername, c.Request.URL) // GetFediUser handles auth as well
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if errWithCode != nil {
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l.Info(errWithCode.Error())
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c.JSON(errWithCode.Code(), gin.H{"error": errWithCode.Safe()})
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return
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}
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b, mErr := json.Marshal(user)
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if mErr != nil {
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err := fmt.Errorf("could not marshal json: %s", mErr)
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l.Error(err)
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c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
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return
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}
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c.Data(http.StatusOK, format, b)
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}
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