117 lines
4.0 KiB
Go
117 lines
4.0 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021-2022 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/ap"
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"github.com/superseriousbusiness/gotosocial/internal/api"
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"github.com/superseriousbusiness/gotosocial/internal/config"
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)
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// WebfingerGETRequest swagger:operation GET /.well-known/webfinger webfingerGet
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//
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// Handles webfinger account lookup requests.
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//
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// For example, a GET to `https://goblin.technology/.well-known/webfinger?resource=acct:tobi@goblin.technology` would return:
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//
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// ```
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// {"subject":"acct:tobi@goblin.technology","aliases":["https://goblin.technology/users/tobi","https://goblin.technology/@tobi"],"links":[{"rel":"http://webfinger.net/rel/profile-page","type":"text/html","href":"https://goblin.technology/@tobi"},{"rel":"self","type":"application/activity+json","href":"https://goblin.technology/users/tobi"}]}
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// ```
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//
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// See: https://webfinger.net/
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//
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// ---
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// tags:
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// - webfinger
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//
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// produces:
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// - application/json
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//
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// responses:
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// '200':
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// schema:
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// "$ref": "#/definitions/wellKnownResponse"
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func (m *Module) WebfingerGETRequest(c *gin.Context) {
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l := logrus.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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resourceQuery, set := c.GetQuery("resource")
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if !set || resourceQuery == "" {
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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(resourceQuery, "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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requestedAccountDomain := strings.ToLower(usernameAndAccountDomain[1])
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if username == "" || requestedAccountDomain == "" {
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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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accountDomain := config.GetAccountDomain()
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host := config.GetHost()
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if requestedAccountDomain != accountDomain && requestedAccountDomain != host {
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l.Debugf("aborting request because accountDomain %s does not belong to this instance", requestedAccountDomain)
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c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("accountDomain %s does not belong to this instance", requestedAccountDomain)})
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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(ap.ContextRequestingPublicKeyVerifier))
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if signed {
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ctx = context.WithValue(ctx, ap.ContextRequestingPublicKeyVerifier, verifier)
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}
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resp, errWithCode := m.processor.GetWebfingerAccount(ctx, username)
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if errWithCode != nil {
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api.ErrorHandler(c, errWithCode, m.processor.InstanceGet)
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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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