| // Licensed to the Apache Software Foundation (ASF) under one or more |
| // contributor license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright ownership. |
| // The ASF licenses this file to You under the Apache License, Version 2.0 |
| // (the "License"); you may not use this file except in compliance with |
| // the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package bufconnect |
| |
| import ( |
| "errors" |
| ) |
| |
| // AuthError wraps the error returned in the auth provider to add additional context. |
| type AuthError struct { |
| cause error |
| |
| tokenEnvKey string |
| } |
| |
| // Unwrap returns the underlying error. |
| func (e *AuthError) Unwrap() error { |
| return e.cause |
| } |
| |
| // Error implements the error interface and returns the error message. |
| func (e *AuthError) Error() string { |
| if e.cause == nil { |
| return "unknown error" |
| } |
| return e.cause.Error() |
| } |
| |
| // TokenEnvKey returns the environment variable used, if any, for authentication. |
| func (e *AuthError) TokenEnvKey() string { |
| return e.tokenEnvKey |
| } |
| |
| // AsAuthError uses errors.As to unwrap any error and look for an *AuthError. |
| func AsAuthError(err error) (*AuthError, bool) { |
| var authErr *AuthError |
| ok := errors.As(err, &authErr) |
| return authErr, ok |
| } |