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//
// Copyright (c) 2015-2024 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
package madmin
import (
"encoding/hex"
"encoding/json"
"encoding/xml"
"fmt"
"io"
"net/http"
"unicode/utf8"
)
/* **** SAMPLE ERROR RESPONSE ****
<?xml version="1.0" encoding="UTF-8"?>
<Error>
<Code>AccessDenied</Code>
<Message>Access Denied</Message>
<BucketName>bucketName</BucketName>
<Key>objectName</Key>
<RequestId>F19772218238A85A</RequestId>
<HostId>GuWkjyviSiGHizehqpmsD1ndz5NClSP19DOT+s2mv7gXGQ8/X1lhbDGiIJEXpGFD</HostId>
</Error>
*/
// ErrorResponse - Is the typed error returned by all API operations.
type ErrorResponse struct {
XMLName xml.Name `xml:"Error" json:"-"`
Code string
Message string
BucketName string
Key string
RequestID string `xml:"RequestId"`
HostID string `xml:"HostId"`
// Region where the bucket is located. This header is returned
// only in HEAD bucket and ListObjects response.
Region string
}
// Error - Returns HTTP error string
func (e ErrorResponse) Error() string {
return e.Message
}
const (
reportIssue = "Please report this issue at https://github.com/minio/minio/issues."
)
// httpRespToErrorResponse returns a new encoded ErrorResponse
// structure as error.
func httpRespToErrorResponse(resp *http.Response) error {
if resp == nil || resp.Body == nil {
msg := "Response is empty. " + reportIssue
return ErrInvalidArgument(msg)
}
defer closeResponse(resp)
// Limit to 100K
body, err := io.ReadAll(io.LimitReader(resp.Body, 100<<10))
if err != nil {
return ErrorResponse{
Code: resp.Status,
Message: fmt.Sprintf("Failed to read server response: %s.", err),
}
}
var errResp ErrorResponse
// Decode the json error
err = json.Unmarshal(body, &errResp)
if err != nil {
// We might get errors as XML, try that.
xmlErr := xml.Unmarshal(body, &errResp)
if xmlErr != nil {
bodyString := string(body)
if !utf8.Valid(body) {
bodyString = hex.EncodeToString(body)
}
if len(bodyString) > 1024 {
bodyString = bodyString[:1021] + "..."
}
return ErrorResponse{
Code: resp.Status,
Message: fmt.Sprintf("Failed to parse server response (%s): %s", err.Error(), bodyString),
}
}
}
return errResp
}
// ToErrorResponse - Returns parsed ErrorResponse struct from body and
// http headers.
//
// For example:
//
// import admin "github.com/minio/madmin-go/v3"
// ...
// ...
// ss, err := adm.ServiceStatus(...)
// if err != nil {
// resp := admin.ToErrorResponse(err)
// }
// ...
func ToErrorResponse(err error) ErrorResponse {
switch err := err.(type) {
case ErrorResponse:
return err
default:
return ErrorResponse{}
}
}
// ErrInvalidArgument - Invalid argument response.
func ErrInvalidArgument(message string) error {
return ErrorResponse{
Code: "InvalidArgument",
Message: message,
RequestID: "minio",
}
}
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