mirror of https://github.com/minio/minio.git
495 lines
16 KiB
Go
495 lines
16 KiB
Go
/*
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* Minio Cloud Storage, (C) 2015 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 main
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import (
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"encoding/xml"
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"net/http"
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)
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// APIError structure
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type APIError struct {
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Code string
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Description string
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HTTPStatusCode int
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}
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// APIErrorResponse - error response format
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type APIErrorResponse 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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Key string
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BucketName string
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Resource string
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RequestID string `xml:"RequestId"`
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HostID string `xml:"HostId"`
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}
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// APIErrorCode type of error status.
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type APIErrorCode int
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// Error codes, non exhaustive list - http://docs.aws.amazon.com/AmazonS3/latest/API/ErrorResponses.html
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const (
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ErrNone APIErrorCode = iota
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ErrAccessDenied
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ErrBadDigest
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ErrBucketAlreadyExists
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ErrEntityTooSmall
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ErrEntityTooLarge
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ErrIncompleteBody
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ErrInternalError
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ErrInvalidAccessKeyID
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ErrInvalidBucketName
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ErrInvalidDigest
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ErrInvalidRange
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ErrInvalidMaxKeys
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ErrInvalidMaxUploads
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ErrInvalidMaxParts
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ErrInvalidPartNumberMarker
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ErrInvalidRequestBody
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ErrInvalidCopySource
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ErrInvalidCopyDest
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ErrInvalidPolicyDocument
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ErrMalformedXML
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ErrMissingContentLength
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ErrMissingContentMD5
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ErrMissingRequestBodyError
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ErrNoSuchBucket
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ErrNoSuchBucketPolicy
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ErrNoSuchKey
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ErrNoSuchUpload
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ErrNotImplemented
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ErrRequestTimeTooSkewed
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ErrSignatureDoesNotMatch
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ErrMethodNotAllowed
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ErrInvalidPart
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ErrInvalidPartOrder
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ErrAuthorizationHeaderMalformed
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ErrMalformedPOSTRequest
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ErrSignatureVersionNotSupported
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ErrBucketNotEmpty
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ErrAllAccessDisabled
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ErrMalformedPolicy
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ErrMissingFields
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ErrMissingCredTag
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ErrCredMalformed
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ErrInvalidRegion
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ErrInvalidService
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ErrInvalidRequestVersion
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ErrMissingSignTag
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ErrMissingSignHeadersTag
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ErrPolicyAlreadyExpired
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ErrMalformedDate
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ErrMalformedExpires
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ErrAuthHeaderEmpty
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ErrExpiredPresignRequest
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ErrMissingDateHeader
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ErrInvalidQuerySignatureAlgo
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ErrInvalidQueryParams
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ErrBucketAlreadyOwnedByYou
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// Add new error codes here.
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// Minio extended errors.
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ErrReadQuorum
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ErrWriteQuorum
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ErrStorageFull
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ErrObjectExistsAsDirectory
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ErrPolicyNesting
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)
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// error code to APIError structure, these fields carry respective
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// descriptions for all the error responses.
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var errorCodeResponse = map[APIErrorCode]APIError{
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ErrInvalidCopyDest: {
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Code: "InvalidRequest",
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Description: "This copy request is illegal because it is trying to copy an object to itself.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrInvalidCopySource: {
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Code: "InvalidArgument",
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Description: "Copy Source must mention the source bucket and key: sourcebucket/sourcekey.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrInvalidRequestBody: {
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Code: "InvalidArgument",
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Description: "Body shouldn't be set for this request.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrInvalidMaxUploads: {
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Code: "InvalidArgument",
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Description: "Argument maxUploads must be an integer between 0 and 2147483647.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrInvalidMaxKeys: {
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Code: "InvalidArgument",
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Description: "Argument maxKeys must be an integer between 0 and 2147483647.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrInvalidMaxParts: {
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Code: "InvalidArgument",
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Description: "Argument maxParts must be an integer between 1 and 10000.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrInvalidPartNumberMarker: {
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Code: "InvalidArgument",
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Description: "Argument partNumberMarker must be an integer.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrInvalidPolicyDocument: {
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Code: "InvalidPolicyDocument",
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Description: "The content of the form does not meet the conditions specified in the policy document.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrAccessDenied: {
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Code: "AccessDenied",
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Description: "Access Denied.",
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HTTPStatusCode: http.StatusForbidden,
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},
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ErrBadDigest: {
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Code: "BadDigest",
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Description: "The Content-Md5 you specified did not match what we received.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrBucketAlreadyExists: {
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Code: "BucketAlreadyExists",
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Description: "The requested bucket name is not available.",
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HTTPStatusCode: http.StatusConflict,
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},
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ErrEntityTooSmall: {
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Code: "EntityTooSmall",
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Description: "Your proposed upload is smaller than the minimum allowed object size.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrEntityTooLarge: {
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Code: "EntityTooLarge",
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Description: "Your proposed upload exceeds the maximum allowed object size.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrIncompleteBody: {
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Code: "IncompleteBody",
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Description: "You did not provide the number of bytes specified by the Content-Length HTTP header.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrInternalError: {
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Code: "InternalError",
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Description: "We encountered an internal error, please try again.",
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HTTPStatusCode: http.StatusInternalServerError,
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},
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ErrInvalidAccessKeyID: {
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Code: "InvalidAccessKeyID",
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Description: "The access key ID you provided does not exist in our records.",
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HTTPStatusCode: http.StatusForbidden,
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},
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ErrInvalidBucketName: {
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Code: "InvalidBucketName",
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Description: "The specified bucket is not valid.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrInvalidDigest: {
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Code: "InvalidDigest",
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Description: "The Content-Md5 you specified is not valid.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrInvalidRange: {
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Code: "InvalidRange",
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Description: "The requested range cannot be satisfied.",
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HTTPStatusCode: http.StatusRequestedRangeNotSatisfiable,
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},
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ErrMalformedXML: {
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Code: "MalformedXML",
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Description: "The XML you provided was not well-formed or did not validate against our published schema.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrMissingContentLength: {
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Code: "MissingContentLength",
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Description: "You must provide the Content-Length HTTP header.",
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HTTPStatusCode: http.StatusLengthRequired,
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},
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ErrMissingContentMD5: {
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Code: "MissingContentMD5",
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Description: "Missing required header for this request: Content-Md5.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrMissingRequestBodyError: {
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Code: "MissingRequestBodyError",
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Description: "Request body is empty.",
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HTTPStatusCode: http.StatusLengthRequired,
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},
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ErrNoSuchBucket: {
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Code: "NoSuchBucket",
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Description: "The specified bucket does not exist.",
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HTTPStatusCode: http.StatusNotFound,
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},
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ErrNoSuchBucketPolicy: {
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Code: "NoSuchBucketPolicy",
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Description: "The specified bucket does not have a bucket policy.",
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HTTPStatusCode: http.StatusNotFound,
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},
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ErrNoSuchKey: {
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Code: "NoSuchKey",
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Description: "The specified key does not exist.",
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HTTPStatusCode: http.StatusNotFound,
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},
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ErrNoSuchUpload: {
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Code: "NoSuchUpload",
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Description: "The specified multipart upload does not exist.",
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HTTPStatusCode: http.StatusNotFound,
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},
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ErrNotImplemented: {
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Code: "NotImplemented",
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Description: "A header you provided implies functionality that is not implemented.",
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HTTPStatusCode: http.StatusNotImplemented,
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},
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ErrRequestTimeTooSkewed: {
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Code: "RequestTimeTooSkewed",
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Description: "The difference between the request time and the server's time is too large.",
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HTTPStatusCode: http.StatusForbidden,
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},
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ErrSignatureDoesNotMatch: {
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Code: "SignatureDoesNotMatch",
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Description: "The request signature we calculated does not match the signature you provided. Check your key and signing method.",
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HTTPStatusCode: http.StatusForbidden,
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},
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ErrMethodNotAllowed: {
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Code: "MethodNotAllowed",
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Description: "The specified method is not allowed against this resource.",
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HTTPStatusCode: http.StatusMethodNotAllowed,
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},
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ErrInvalidPart: {
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Code: "InvalidPart",
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Description: "One or more of the specified parts could not be found.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrInvalidPartOrder: {
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Code: "InvalidPartOrder",
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Description: "The list of parts was not in ascending order. The parts list must be specified in order by part number.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrAuthorizationHeaderMalformed: {
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Code: "AuthorizationHeaderMalformed",
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Description: "The authorization header is malformed; the region is wrong; expecting 'us-east-1'.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrMalformedPOSTRequest: {
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Code: "MalformedPOSTRequest",
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Description: "The body of your POST request is not well-formed multipart/form-data.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrSignatureVersionNotSupported: {
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Code: "InvalidRequest",
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Description: "The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrBucketNotEmpty: {
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Code: "BucketNotEmpty",
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Description: "The bucket you tried to delete is not empty.",
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HTTPStatusCode: http.StatusConflict,
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},
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ErrAllAccessDisabled: {
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Code: "AllAccessDisabled",
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Description: "All access to this bucket has been disabled.",
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HTTPStatusCode: http.StatusForbidden,
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},
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ErrMalformedPolicy: {
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Code: "MalformedPolicy",
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Description: "Policy has invalid resource.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrMissingFields: {
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Code: "MissingFields",
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Description: "Missing fields in request.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrMissingCredTag: {
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Code: "InvalidRequest",
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Description: "Missing Credential field for this request.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrCredMalformed: {
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Code: "CredentialMalformed",
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Description: "Credential field malformed does not follow accessKeyID/credScope.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrMalformedDate: {
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Code: "MalformedDate",
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Description: "Invalid date format header, expected to be in ISO8601, RFC1123 or RFC1123Z time format.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrInvalidRegion: {
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Code: "InvalidRegion",
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Description: "Region does not match.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrInvalidService: {
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Code: "AccessDenied",
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Description: "Service scope should be of value 's3'.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrInvalidRequestVersion: {
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Code: "AccessDenied",
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Description: "Request scope should be of value 'aws4_request'.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrMissingSignTag: {
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Code: "AccessDenied",
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Description: "Signature header missing Signature field.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrMissingSignHeadersTag: {
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Code: "InvalidArgument",
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Description: "Signature header missing SignedHeaders field.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrPolicyAlreadyExpired: {
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Code: "AccessDenied",
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Description: "Invalid according to Policy: Policy expired.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrMalformedExpires: {
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Code: "MalformedExpires",
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Description: "Malformed expires header, expected non-zero number.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrAuthHeaderEmpty: {
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Code: "InvalidArgument",
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Description: "Authorization header is invalid -- one and only one ' ' (space) required.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrMissingDateHeader: {
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Code: "AccessDenied",
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Description: "AWS authentication requires a valid Date or x-amz-date header",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrInvalidQuerySignatureAlgo: {
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Code: "AuthorizationQueryParametersError",
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Description: "X-Amz-Algorithm only supports \"AWS4-HMAC-SHA256\".",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrExpiredPresignRequest: {
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Code: "AccessDenied",
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Description: "Request has expired.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrInvalidQueryParams: {
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Code: "AuthorizationQueryParametersError",
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Description: "Query-string authentication version 4 requires the X-Amz-Algorithm, X-Amz-Credential, X-Amz-Signature, X-Amz-Date, X-Amz-SignedHeaders, and X-Amz-Expires parameters.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrBucketAlreadyOwnedByYou: {
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Code: "BucketAlreadyOwnedByYou",
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Description: "Your previous request to create the named bucket succeeded and you already own it.",
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HTTPStatusCode: http.StatusConflict,
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},
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/// Minio extensions.
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ErrStorageFull: {
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Code: "XMinioStorageFull",
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Description: "Storage backend has reached its minimum free disk threshold. Please delete few objects to proceed.",
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HTTPStatusCode: http.StatusInternalServerError,
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},
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ErrObjectExistsAsDirectory: {
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Code: "XMinioObjectExistsAsDirectory",
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Description: "Object name already exists as a directory.",
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HTTPStatusCode: http.StatusConflict,
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},
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ErrReadQuorum: {
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Code: "XMinioReadQuorum",
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Description: "Multiple disk failures, unable to reconstruct data.",
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HTTPStatusCode: http.StatusServiceUnavailable,
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},
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ErrWriteQuorum: {
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Code: "XMinioWriteQuorum",
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Description: "Multiple disks failures, unable to write data.",
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HTTPStatusCode: http.StatusServiceUnavailable,
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},
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ErrPolicyNesting: {
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Code: "XMinioPolicyNesting",
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Description: "Policy nesting conflict has occurred.",
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HTTPStatusCode: http.StatusConflict,
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},
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// Add your error structure here.
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}
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// toAPIErrorCode - Converts embedded errors. Convenience
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// function written to handle all cases where we have known types of
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// errors returned by underlying layers.
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func toAPIErrorCode(err error) (apiErr APIErrorCode) {
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if err == nil {
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return ErrNone
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}
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// Verify if the underlying error is signature mismatch.
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if err == errSignatureMismatch {
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return ErrSignatureDoesNotMatch
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}
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switch err.(type) {
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case StorageFull:
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apiErr = ErrStorageFull
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case BadDigest:
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apiErr = ErrBadDigest
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case IncompleteBody:
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apiErr = ErrIncompleteBody
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case ObjectExistsAsDirectory:
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apiErr = ErrObjectExistsAsDirectory
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case BucketNameInvalid:
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apiErr = ErrInvalidBucketName
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case BucketNotFound:
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apiErr = ErrNoSuchBucket
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case BucketNotEmpty:
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apiErr = ErrBucketNotEmpty
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case BucketExists:
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apiErr = ErrBucketAlreadyOwnedByYou
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case ObjectNotFound:
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apiErr = ErrNoSuchKey
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case ObjectNameInvalid:
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apiErr = ErrNoSuchKey
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case InvalidUploadID:
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apiErr = ErrNoSuchUpload
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case InvalidPart:
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apiErr = ErrInvalidPart
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case InsufficientWriteQuorum:
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apiErr = ErrWriteQuorum
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case InsufficientReadQuorum:
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apiErr = ErrReadQuorum
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case PartTooSmall:
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apiErr = ErrEntityTooSmall
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default:
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apiErr = ErrInternalError
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}
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return apiErr
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}
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// getAPIError provides API Error for input API error code.
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func getAPIError(code APIErrorCode) APIError {
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return errorCodeResponse[code]
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}
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// getErrorResponse gets in standard error and resource value and
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// provides a encodable populated response values
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func getAPIErrorResponse(err APIError, resource string) APIErrorResponse {
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var data = APIErrorResponse{}
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data.Code = err.Code
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data.Message = err.Description
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if resource != "" {
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data.Resource = resource
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}
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// TODO implement this in future
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data.RequestID = "3L137"
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data.HostID = "3L137"
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return data
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}
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