138 lines
3.4 KiB
Go
138 lines
3.4 KiB
Go
//
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// MinIO Object Storage (c) 2021 MinIO, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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package madmin
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import (
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"encoding/hex"
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"encoding/json"
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"encoding/xml"
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"fmt"
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"io"
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"io/ioutil"
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"net/http"
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"unicode/utf8"
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)
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/* **** SAMPLE ERROR RESPONSE ****
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<?xml version="1.0" encoding="UTF-8"?>
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<Error>
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<Code>AccessDenied</Code>
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<Message>Access Denied</Message>
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<BucketName>bucketName</BucketName>
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<Key>objectName</Key>
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<RequestId>F19772218238A85A</RequestId>
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<HostId>GuWkjyviSiGHizehqpmsD1ndz5NClSP19DOT+s2mv7gXGQ8/X1lhbDGiIJEXpGFD</HostId>
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</Error>
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*/
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// ErrorResponse - Is the typed error returned by all API operations.
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type ErrorResponse struct {
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XMLName xml.Name `xml:"Error" json:"-"`
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Code string
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Message string
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BucketName string
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Key string
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RequestID string `xml:"RequestId"`
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HostID string `xml:"HostId"`
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// Region where the bucket is located. This header is returned
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// only in HEAD bucket and ListObjects response.
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Region string
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}
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// Error - Returns HTTP error string
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func (e ErrorResponse) Error() string {
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return e.Message
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}
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const (
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reportIssue = "Please report this issue at https://github.com/minio/minio/issues."
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)
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// httpRespToErrorResponse returns a new encoded ErrorResponse
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// structure as error.
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func httpRespToErrorResponse(resp *http.Response) error {
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if resp == nil || resp.Body == nil {
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msg := "Response is empty. " + reportIssue
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return ErrInvalidArgument(msg)
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}
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defer closeResponse(resp)
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// Limit to 100K
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body, err := ioutil.ReadAll(io.LimitReader(resp.Body, 100<<10))
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if err != nil {
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return ErrorResponse{
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Code: resp.Status,
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Message: fmt.Sprintf("Failed to read server response: %s.", err),
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}
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}
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var errResp ErrorResponse
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// Decode the json error
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err = json.Unmarshal(body, &errResp)
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if err != nil {
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// We might get errors as XML, try that.
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xmlErr := xml.Unmarshal(body, &errResp)
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if xmlErr != nil {
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bodyString := string(body)
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if !utf8.Valid(body) {
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bodyString = hex.EncodeToString(body)
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}
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if len(bodyString) > 1024 {
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bodyString = bodyString[:1021] + "..."
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}
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return ErrorResponse{
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Code: resp.Status,
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Message: fmt.Sprintf("Failed to parse server response (%s): %s", err.Error(), bodyString),
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}
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}
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}
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return errResp
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}
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// ToErrorResponse - Returns parsed ErrorResponse struct from body and
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// http headers.
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//
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// For example:
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//
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// import admin "github.com/minio/madmin-go"
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// ...
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// ...
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// ss, err := adm.ServiceStatus(...)
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// if err != nil {
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// resp := admin.ToErrorResponse(err)
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// }
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// ...
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func ToErrorResponse(err error) ErrorResponse {
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switch err := err.(type) {
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case ErrorResponse:
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return err
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default:
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return ErrorResponse{}
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}
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}
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// ErrInvalidArgument - Invalid argument response.
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func ErrInvalidArgument(message string) error {
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return ErrorResponse{
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Code: "InvalidArgument",
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Message: message,
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RequestID: "minio",
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}
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}
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