107 lignes
3,2 Kio
Go
107 lignes
3,2 Kio
Go
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package fosite
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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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"context"
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"github.com/pkg/errors"
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)
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// NewRevocationRequest handles incoming token revocation requests and
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// validates various parameters as specified in:
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// https://tools.ietf.org/html/rfc7009#section-2.1
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//
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// The authorization server first validates the client credentials (in
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// case of a confidential client) and then verifies whether the token
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// was issued to the client making the revocation request. If this
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// validation fails, the request is refused and the client is informed
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// of the error by the authorization server as described below.
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//
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// In the next step, the authorization server invalidates the token.
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// The invalidation takes place immediately, and the token cannot be
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// used again after the revocation.
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//
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// * https://tools.ietf.org/html/rfc7009#section-2.2
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// An invalid token type hint value is ignored by the authorization
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// server and does not influence the revocation response.
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func (f *Fosite) NewRevocationRequest(ctx context.Context, r *http.Request) error {
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if r.Method != "POST" {
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return errors.Wrap(ErrInvalidRequest, "HTTP method is not POST")
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} else if err := r.ParseForm(); err != nil {
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return errors.Wrap(ErrInvalidRequest, err.Error())
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}
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clientID, clientSecret, ok := r.BasicAuth()
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if !ok {
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return errors.Wrap(ErrInvalidRequest, "HTTP Authorization header missing or invalid")
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}
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client, err := f.Store.GetClient(ctx, clientID)
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if err != nil {
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return errors.Wrap(ErrInvalidClient, err.Error())
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}
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// Enforce client authentication for confidential clients
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if !client.IsPublic() {
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if err := f.Hasher.Compare(client.GetHashedSecret(), []byte(clientSecret)); err != nil {
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return errors.Wrap(ErrInvalidClient, err.Error())
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}
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}
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token := r.PostForm.Get("token")
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tokenTypeHint := TokenType(r.PostForm.Get("token_type_hint"))
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var found bool
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for _, loader := range f.RevocationHandlers {
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if err := loader.RevokeToken(ctx, token, tokenTypeHint); err == nil {
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found = true
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} else if errors.Cause(err) == ErrUnknownRequest {
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// do nothing
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} else if err != nil {
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return err
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}
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}
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if !found {
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return errors.WithStack(ErrInvalidRequest)
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}
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return nil
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}
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// WriteRevocationResponse writes a token revocation response as specified in:
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// https://tools.ietf.org/html/rfc7009#section-2.2
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//
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// The authorization server responds with HTTP status code 200 if the
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// token has been revoked successfully or if the client submitted an
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// invalid token.
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//
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// Note: invalid tokens do not cause an error response since the client
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// cannot handle such an error in a reasonable way. Moreover, the
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// purpose of the revocation request, invalidating the particular token,
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// is already achieved.
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func (f *Fosite) WriteRevocationResponse(rw http.ResponseWriter, err error) {
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switch errors.Cause(err) {
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case ErrInvalidRequest:
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fallthrough
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case ErrInvalidClient:
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rw.Header().Set("Content-Type", "application/json;charset=UTF-8")
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rfcerr := ErrorToRFC6749Error(err)
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js, err := json.Marshal(rfcerr)
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if err != nil {
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http.Error(rw, fmt.Sprintf(`{"error": "%s"}`, err.Error()), http.StatusInternalServerError)
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return
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}
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rw.WriteHeader(rfcerr.Code)
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rw.Write(js)
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default:
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// 200 OK
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rw.WriteHeader(http.StatusOK)
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}
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}
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