Basic logout flow and better UX

internal/hydra/client.go

@@ -70,7 +70,57 @@ func (c *Client) RejectLoginRequest(challenge string, req *RejectRequest) (*Reje
 }
 
 func (c *Client) LogoutRequest(challenge string) (*LogoutResponse, error) {
-	return nil, nil
+	u := fromURL(*c.baseURL, "/oauth2/auth/requests/logout", url.Values{
+		"logout_challenge": []string{challenge},
+	})
+
+	res, err := c.http.Get(u)
+	if err != nil {
+		return nil, errors.Wrap(err, "could not retrieve logout response")
+	}
+
+	if res.StatusCode < http.StatusOK || res.StatusCode >= http.StatusBadRequest {
+		return nil, errors.Wrapf(ErrUnexpectedHydraResponse, "hydra responded with status code '%d'", res.StatusCode)
+	}
+
+	defer res.Body.Close()
+
+	decoder := json.NewDecoder(res.Body)
+	logoutRes := &LogoutResponse{}
+
+	if err := decoder.Decode(logoutRes); err != nil {
+		return nil, errors.Wrap(err, "could not decode json response")
+	}
+
+	return logoutRes, nil
+}
+
+func (c *Client) AcceptLogoutRequest(challenge string) (*AcceptResponse, error) {
+	u := fromURL(*c.baseURL, "/oauth2/auth/requests/logout/accept", url.Values{
+		"logout_challenge": []string{challenge},
+	})
+
+	res := &AcceptResponse{}
+
+	if err := c.putJSON(u, nil, res); err != nil {
+		return nil, err
+	}
+
+	return res, nil
+}
+
+func (c *Client) RejectLogoutRequest(challenge string, req *RejectRequest) (*RejectResponse, error) {
+	u := fromURL(*c.baseURL, "/oauth2/auth/requests/logout/reject", url.Values{
+		"logout_challenge": []string{challenge},
+	})
+
+	res := &RejectResponse{}
+
+	if err := c.putJSON(u, req, res); err != nil {
+		return nil, err
+	}
+
+	return res, nil
 }
 
 func (c *Client) ConsentRequest(challenge string) (*ConsentResponse, error) {

internal/hydra/request.go

@@ -1,12 +1,15 @@
 package hydra
 
 type AcceptLoginRequest struct {
-	Subject     string `json:"subject"`
-	Remember    bool   `json:"remember"`
-	RememberFor int    `json:"remember_for"`
-	ACR         string `json:"acr"`
+	Subject     string                 `json:"subject"`
+	Remember    bool                   `json:"remember"`
+	RememberFor int                    `json:"remember_for"`
+	ACR         string                 `json:"acr"`
+	Context     map[string]interface{} `json:"context"`
 }
 
+type AcceptLogoutRequest struct{}
+
 type AcceptConsentRequest struct {
 	GrantScope               []string             `json:"grant_scope"`
 	GrantAccessTokenAudience []string             `json:"grant_access_token_audience"`

internal/hydra/response.go

@@ -68,6 +68,10 @@ type RejectResponse struct {
 }
 
 type LogoutResponse struct {
+	Subject     string `json:"subject"`
+	SessionID   string `json:"sid"`
+	RPInitiated bool   `json:"rp_initiated"`
+	RequestURL  string `json:"request_url"`
 }
 
 type ConsentResponse struct {
@@ -80,4 +84,5 @@ type ConsentResponse struct {
 	OidcContext                  OidcContextResponseFragment `json:"oidc_context"`
 	RequestedAccessTokenAudience []string                    `json:"requested_access_token_audience"`
 	SessionID                    string                      `json:"session_id"`
+	Context                      map[string]interface{}      `json:"context"`
 }