mirror of
https://github.com/superseriousbusiness/gotosocial
synced 2024-11-24 05:13:10 +00:00
90 lines
3.1 KiB
Go
90 lines
3.1 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 webfinger
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import (
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"context"
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"fmt"
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"net/http"
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"strings"
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"github.com/gin-gonic/gin"
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"github.com/sirupsen/logrus"
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"github.com/superseriousbusiness/gotosocial/internal/util"
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)
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// WebfingerGETRequest handles requests to, for example, https://example.org/.well-known/webfinger?resource=acct:some_user@example.org
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func (m *Module) WebfingerGETRequest(c *gin.Context) {
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l := m.log.WithFields(logrus.Fields{
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"func": "WebfingerGETRequest",
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"user-agent": c.Request.UserAgent(),
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})
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q, set := c.GetQuery("resource")
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if !set || q == "" {
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l.Debug("aborting request because no resource was set in query")
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c.JSON(http.StatusBadRequest, gin.H{"error": "no 'resource' in request query"})
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return
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}
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// remove the acct: prefix if it's present
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trimAcct := strings.TrimPrefix(q, "acct:")
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// remove the first @ in @whatever@example.org if it's present
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namestring := strings.TrimPrefix(trimAcct, "@")
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// at this point we should have a string like some_user@example.org
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l.Debugf("got finger request for '%s'", namestring)
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usernameAndAccountDomain := strings.Split(namestring, "@")
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if len(usernameAndAccountDomain) != 2 {
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l.Debugf("aborting request because username and domain could not be parsed from %s", namestring)
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c.JSON(http.StatusBadRequest, gin.H{"error": "bad request"})
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return
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}
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username := strings.ToLower(usernameAndAccountDomain[0])
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accountDomain := strings.ToLower(usernameAndAccountDomain[1])
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if username == "" || accountDomain == "" {
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l.Debug("aborting request because username or domain was empty")
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c.JSON(http.StatusBadRequest, gin.H{"error": "bad request"})
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return
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}
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if accountDomain != m.config.AccountDomain && accountDomain != m.config.Host {
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l.Debugf("aborting request because accountDomain %s does not belong to this instance", accountDomain)
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c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("accountDomain %s does not belong to this instance", accountDomain)})
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return
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}
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// transfer the signature verifier from the gin context to the request context
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ctx := c.Request.Context()
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verifier, signed := c.Get(string(util.APRequestingPublicKeyVerifier))
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if signed {
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ctx = context.WithValue(ctx, util.APRequestingPublicKeyVerifier, verifier)
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}
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resp, err := m.processor.GetWebfingerAccount(ctx, username)
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if err != nil {
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l.Debugf("aborting request with an error: %s", err.Error())
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c.JSON(err.Code(), gin.H{"error": err.Safe()})
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return
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}
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c.JSON(http.StatusOK, resp)
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}
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