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errors.go
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/
errors.go
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/*
* Copyright 2017-2019 Kopano and its licensors
*
* Licensed 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 oidc
import (
"fmt"
"net/http"
"github.com/libregraph/lico/utils"
)
// OAuth2Error defines a general OAuth2 error with id and decription.
type OAuth2Error struct {
ErrorID string `json:"error"`
ErrorDescription string `json:"error_description"`
}
// Error implements the error interface.
func (err *OAuth2Error) Error() string {
return err.ErrorID
}
// Description implements the ErrorWithDescription interface.
func (err *OAuth2Error) Description() string {
return err.ErrorDescription
}
// NewOAuth2Error creates a new error with id and description.
func NewOAuth2Error(id string, description string) utils.ErrorWithDescription {
return &OAuth2Error{id, description}
}
// WriteWWWAuthenticateError writes the provided error with the provided
// http status code to the provided http response writer as a
// WWW-Authenticate header with comma separated fields for id and
// description.
func WriteWWWAuthenticateError(rw http.ResponseWriter, code int, err error) {
if code == 0 {
code = http.StatusUnauthorized
}
var description string
switch err.(type) {
case utils.ErrorWithDescription:
description = err.(utils.ErrorWithDescription).Description()
default:
}
rw.Header().Set("WWW-Authenticate", fmt.Sprintf("error=\"%s\", error_description=\"%s\"", err.Error(), description))
rw.WriteHeader(code)
}
// IsErrorWithID returns true if the given error is an OAuth2Error error with
// the given ID.
func IsErrorWithID(err error, id string) bool {
if err == nil {
return false
}
oauth2Error, ok := err.(*OAuth2Error)
if !ok {
return false
}
return oauth2Error.ErrorID == id
}