// tokensHandler handles all OAuth 2.0 grant types
// (POST /v1/oauth/tokens)
func (s *Service) tokensHandler(w http.ResponseWriter, r *http.Request) {
// Parse the form so r.Form becomes available
if err := r.ParseForm(); err != nil {
response.Error(w, err.Error(), http.StatusInternalServerError)
return
}
// Map of grant types against handler functions
grantTypes := map[string]func(r *http.Request, client *models.OauthClient) (*AccessTokenResponse, error){
"authorization_code": s.authorizationCodeGrant,
"password": s.passwordGrant,
"client_credentials": s.clientCredentialsGrant,
"refresh_token": s.refreshTokenGrant,
}
// Check the grant type
grantHandler, ok := grantTypes[r.Form.Get("grant_type")]
if !ok {
response.Error(w, ErrInvalidGrantType.Error(), http.StatusBadRequest)
return
}
// Client auth
client, err := s.basicAuthClient(r)
if err != nil {
response.UnauthorizedError(w, err.Error())
return
}
// Grant processing
resp, err := grantHandler(r, client)
if err != nil {
response.Error(w, err.Error(), getErrStatusCode(err))
return
}
// Write response to json
response.WriteJSON(w, resp, 200)
}
// introspectHandler handles OAuth 2.0 introspect request
// (POST /v1/oauth/introspect)
func (s *Service) introspectHandler(w http.ResponseWriter, r *http.Request) {
// Client auth
client, err := s.basicAuthClient(r)
if err != nil {
response.UnauthorizedError(w, err.Error())
return
}
// Introspect the token
resp, err := s.introspectToken(r, client)
if err != nil {
response.Error(w, err.Error(), getErrStatusCode(err))
return
}
// Write response to json
response.WriteJSON(w, resp, 200)
}