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[chore] Improve unsupported_grant_type error (#1572) 

This attempts to provide a slightly more comprehensive error message for
the end user when an incorrect grant type is used. This is not something
the user can typically resolve but should hopefully be informative for
the (client) developer.
This commit is contained in:
Daenney 2023-02-28 11:38:34 +01:00 committed by GitHub
parent d550f0ecbe
commit e4c5f9adfd
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1 changed files with 11 additions and 5 deletions
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16
internal/oauth/server.go
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@ -20,6 +20,7 @@ package oauth
import (
"context"
"errors"
"fmt"
"net/http"
"strings"
@ -28,7 +29,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/oauth2/v4"
"github.com/superseriousbusiness/oauth2/v4/errors"
oautherr "github.com/superseriousbusiness/oauth2/v4/errors"
"github.com/superseriousbusiness/oauth2/v4/manage"
"github.com/superseriousbusiness/oauth2/v4/server"
)
@ -56,7 +57,8 @@ const (
OOBTokenPath = "/oauth/oob" // #nosec G101 else we get a hardcoded credentials warning
// HelpfulAdvice is a handy hint to users;
// particularly important during the login flow
HelpfulAdvice = "If you arrived at this error during a login/oauth flow, please try clearing your session cookies and logging in again; if problems persist, make sure you're using the correct credentials"
HelpfulAdvice = "If you arrived at this error during a login/oauth flow, please try clearing your session cookies and logging in again; if problems persist, make sure you're using the correct credentials"
HelpfulAdviceGrant = "If you arrived at this error during a login/oauth flow, your client is trying to use an unsupported OAuth grant type. Supported grant types are: authorization_code, client_credentials; please reach out to developer of your client"
)
// Server wraps some oauth2 server functions in an interface, exposing only what is needed
@ -102,12 +104,12 @@ func New(ctx context.Context, database db.Basic) Server {
}
srv := server.NewServer(sc, manager)
srv.SetInternalErrorHandler(func(err error) *errors.Response {
srv.SetInternalErrorHandler(func(err error) *oautherr.Response {
log.Errorf(nil, "internal oauth error: %s", err)
return nil
})
srv.SetResponseErrorHandler(func(re *errors.Response) {
srv.SetResponseErrorHandler(func(re *oautherr.Response) {
log.Errorf(nil, "internal response error: %s", re.Error)
})
@ -131,7 +133,11 @@ func (s *s) HandleTokenRequest(r *http.Request) (map[string]interface{}, gtserro
gt, tgr, err := s.server.ValidationTokenRequest(r)
if err != nil {
help := fmt.Sprintf("could not validate token request: %s", err)
return nil, gtserror.NewErrorBadRequest(err, help, HelpfulAdvice)
adv := HelpfulAdvice
if errors.Is(err, oautherr.ErrUnsupportedGrantType) {
adv = HelpfulAdviceGrant
}
return nil, gtserror.NewErrorBadRequest(err, help, adv)
}
ti, err := s.server.GetAccessToken(ctx, gt, tgr)