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minio/pkg/api/errors.go

211 lines
6.3 KiB

/*
* Minimalist Object Storage, (C) 2015 Minio, Inc.
*
* 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 api
import (
"encoding/xml"
"net/http"
)
// Error structure
type Error struct {
Code string
Description string
HTTPStatusCode int
}
// ErrorResponse - error response format
type ErrorResponse struct {
XMLName xml.Name `xml:"Error" json:"-"`
Code string
Message string
Resource string
RequestID string
HostID string
}
// Error codes, non exhaustive list - http://docs.aws.amazon.com/AmazonS3/latest/API/ErrorResponses.html
const (
AccessDenied = iota
BadDigest
BucketAlreadyExists
EntityTooSmall
EntityTooLarge
IncompleteBody
InternalError
InvalidAccessKeyID
InvalidBucketName
InvalidDigest
InvalidRange
InvalidRequest
MalformedXML
MissingContentLength
MissingRequestBodyError
NoSuchBucket
NoSuchKey
NoSuchUpload
NotImplemented
RequestTimeTooSkewed
SignatureDoesNotMatch
TooManyBuckets
MethodNotAllowed
)
// Error codes, non exhaustive list - standard HTTP errors
const (
NotAcceptable = iota + 23
)
// Error code to Error structure map
var errorCodeResponse = map[int]Error{
AccessDenied: {
Code: "AccessDenied",
Description: "Access Denied",
HTTPStatusCode: http.StatusForbidden,
},
BadDigest: {
Code: "BadDigest",
Description: "The Content-MD5 you specified did not match what we received.",
HTTPStatusCode: http.StatusBadRequest,
},
BucketAlreadyExists: {
Code: "BucketAlreadyExists",
Description: "The requested bucket name is not available.",
HTTPStatusCode: http.StatusConflict,
},
EntityTooSmall: {
Code: "EntityTooSmall",
Description: "Your proposed upload is smaller than the minimum allowed object size.",
HTTPStatusCode: http.StatusBadRequest,
},
EntityTooLarge: {
Code: "EntityTooLarge",
Description: "Your proposed upload exceeds the maximum allowed object size.",
HTTPStatusCode: http.StatusBadRequest,
},
IncompleteBody: {
Code: "IncompleteBody",
Description: "You did not provide the number of bytes specified by the Content-Length HTTP header",
HTTPStatusCode: http.StatusBadRequest,
},
InternalError: {
Code: "InternalError",
Description: "We encountered an internal error, please try again.",
HTTPStatusCode: http.StatusInternalServerError,
},
InvalidAccessKeyID: {
Code: "InvalidAccessKeyID",
Description: "The access key ID you provided does not exist in our records.",
HTTPStatusCode: http.StatusForbidden,
},
InvalidBucketName: {
Code: "InvalidBucketName",
Description: "The specified bucket is not valid.",
HTTPStatusCode: http.StatusBadRequest,
},
InvalidDigest: {
Code: "InvalidDigest",
Description: "The Content-MD5 you specified is not valid.",
HTTPStatusCode: http.StatusBadRequest,
},
InvalidRange: {
Code: "InvalidRange",
Description: "The requested range cannot be satisfied.",
HTTPStatusCode: http.StatusRequestedRangeNotSatisfiable,
},
MalformedXML: {
Code: "MalformedXML",
Description: "The XML you provided was not well-formed or did not validate against our published schema.",
HTTPStatusCode: http.StatusBadRequest,
},
MissingContentLength: {
Code: "MissingContentLength",
Description: "You must provide the Content-Length HTTP header.",
HTTPStatusCode: http.StatusLengthRequired,
},
MissingRequestBodyError: {
Code: "MissingRequestBodyError",
Description: "Request body is empty.",
HTTPStatusCode: http.StatusLengthRequired,
},
NoSuchBucket: {
Code: "NoSuchBucket",
Description: "The specified bucket does not exist.",
HTTPStatusCode: http.StatusNotFound,
},
NoSuchKey: {
Code: "NoSuchKey",
Description: "The specified key does not exist.",
HTTPStatusCode: http.StatusNotFound,
},
NoSuchUpload: {
Code: "NoSuchUpload",
Description: "The specified multipart upload does not exist.",
HTTPStatusCode: http.StatusNotFound,
},
NotImplemented: {
Code: "NotImplemented",
Description: "A header you provided implies functionality that is not implemented.",
HTTPStatusCode: http.StatusNotImplemented,
},
RequestTimeTooSkewed: {
Code: "RequestTimeTooSkewed",
Description: "The difference between the request time and the server's time is too large.",
HTTPStatusCode: http.StatusForbidden,
},
SignatureDoesNotMatch: {
Code: "SignatureDoesNotMatch",
Description: "The request signature we calculated does not match the signature you provided.",
HTTPStatusCode: http.StatusForbidden,
},
TooManyBuckets: {
Code: "TooManyBuckets",
Description: "You have attempted to create more buckets than allowed.",
HTTPStatusCode: http.StatusBadRequest,
},
MethodNotAllowed: {
Code: "MethodNotAllowed",
Description: "The specified method is not allowed against this resource.",
HTTPStatusCode: http.StatusMethodNotAllowed,
},
NotAcceptable: {
Code: "NotAcceptable",
Description: "The requested resource is only capable of generating content not acceptable according to the Accept headers sent in the request.",
HTTPStatusCode: http.StatusNotAcceptable,
},
}
// errorCodeError provides errorCode to Error. It returns empty if the code provided is unknown
func getErrorCode(code int) Error {
return errorCodeResponse[code]
}
// getErrorResponse gets in standard error and resource value and
// provides a encodable populated response values
func getErrorResponse(err Error, resource string) ErrorResponse {
var data = ErrorResponse{}
data.Code = err.Code
data.Message = err.Description
if resource != "" {
data.Resource = resource
}
// TODO implement this in future
data.RequestID = "3L137"
data.HostID = "3L137"
return data
}