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663 lines (641 loc) · 22.8 KB
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/*
* Minio Cloud 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 cmd
import (
"encoding/xml"
"net/http"
)
// APIError structure
type APIError struct {
Code string
Description string
HTTPStatusCode int
}
// APIErrorResponse - error response format
type APIErrorResponse struct {
XMLName xml.Name `xml:"Error" json:"-"`
Code string
Message string
Key string
BucketName string
Resource string
RequestID string `xml:"RequestId"`
HostID string `xml:"HostId"`
}
// APIErrorCode type of error status.
type APIErrorCode int
// Error codes, non exhaustive list - http://docs.aws.amazon.com/AmazonS3/latest/API/ErrorResponses.html
const (
ErrNone APIErrorCode = iota
ErrAccessDenied
ErrBadDigest
ErrEntityTooSmall
ErrEntityTooLarge
ErrIncompleteBody
ErrInternalError
ErrInvalidAccessKeyID
ErrInvalidBucketName
ErrInvalidDigest
ErrInvalidRange
ErrInvalidMaxKeys
ErrInvalidMaxUploads
ErrInvalidMaxParts
ErrInvalidPartNumberMarker
ErrInvalidRequestBody
ErrInvalidCopySource
ErrInvalidCopyDest
ErrInvalidPolicyDocument
ErrInvalidObjectState
ErrMalformedXML
ErrMissingContentLength
ErrMissingContentMD5
ErrMissingRequestBodyError
ErrNoSuchBucket
ErrNoSuchBucketPolicy
ErrNoSuchKey
ErrNoSuchUpload
ErrNotImplemented
ErrPreconditionFailed
ErrRequestTimeTooSkewed
ErrSignatureDoesNotMatch
ErrMethodNotAllowed
ErrInvalidPart
ErrInvalidPartOrder
ErrAuthorizationHeaderMalformed
ErrMalformedPOSTRequest
ErrSignatureVersionNotSupported
ErrBucketNotEmpty
ErrAllAccessDisabled
ErrMalformedPolicy
ErrMissingFields
ErrMissingCredTag
ErrCredMalformed
ErrInvalidRegion
ErrInvalidService
ErrInvalidRequestVersion
ErrMissingSignTag
ErrMissingSignHeadersTag
ErrPolicyAlreadyExpired
ErrMalformedDate
ErrMalformedPresignedDate
ErrMalformedCredentialDate
ErrMalformedCredentialRegion
ErrMalformedExpires
ErrNegativeExpires
ErrAuthHeaderEmpty
ErrExpiredPresignRequest
ErrRequestNotReadyYet
ErrUnsignedHeaders
ErrMissingDateHeader
ErrInvalidQuerySignatureAlgo
ErrInvalidQueryParams
ErrBucketAlreadyOwnedByYou
// Add new error codes here.
// Bucket notification related errors.
ErrEventNotification
ErrARNNotification
ErrRegionNotification
ErrOverlappingFilterNotification
ErrFilterNameInvalid
ErrFilterNamePrefix
ErrFilterNameSuffix
ErrFilterValueInvalid
ErrOverlappingConfigs
// S3 extended errors.
ErrContentSHA256Mismatch
// Add new extended error codes here.
// Minio extended errors.
ErrReadQuorum
ErrWriteQuorum
ErrStorageFull
ErrObjectExistsAsDirectory
ErrPolicyNesting
ErrInvalidObjectName
ErrServerNotInitialized
// Add new extended error codes here.
// Please open a https://github.com/minio/minio/issues before adding
// new error codes here.
)
// error code to APIError structure, these fields carry respective
// descriptions for all the error responses.
var errorCodeResponse = map[APIErrorCode]APIError{
ErrInvalidCopyDest: {
Code: "InvalidRequest",
Description: "This copy request is illegal because it is trying to copy an object to itself.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrInvalidCopySource: {
Code: "InvalidArgument",
Description: "Copy Source must mention the source bucket and key: sourcebucket/sourcekey.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrInvalidRequestBody: {
Code: "InvalidArgument",
Description: "Body shouldn't be set for this request.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrInvalidMaxUploads: {
Code: "InvalidArgument",
Description: "Argument max-uploads must be an integer between 0 and 2147483647",
HTTPStatusCode: http.StatusBadRequest,
},
ErrInvalidMaxKeys: {
Code: "InvalidArgument",
Description: "Argument maxKeys must be an integer between 0 and 2147483647",
HTTPStatusCode: http.StatusBadRequest,
},
ErrInvalidMaxParts: {
Code: "InvalidArgument",
Description: "Argument max-parts must be an integer between 0 and 2147483647",
HTTPStatusCode: http.StatusBadRequest,
},
ErrInvalidPartNumberMarker: {
Code: "InvalidArgument",
Description: "Argument partNumberMarker must be an integer.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrInvalidPolicyDocument: {
Code: "InvalidPolicyDocument",
Description: "The content of the form does not meet the conditions specified in the policy document.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrAccessDenied: {
Code: "AccessDenied",
Description: "Access Denied.",
HTTPStatusCode: http.StatusForbidden,
},
ErrBadDigest: {
Code: "BadDigest",
Description: "The Content-Md5 you specified did not match what we received.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrEntityTooSmall: {
Code: "EntityTooSmall",
Description: "Your proposed upload is smaller than the minimum allowed object size.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrEntityTooLarge: {
Code: "EntityTooLarge",
Description: "Your proposed upload exceeds the maximum allowed object size.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrIncompleteBody: {
Code: "IncompleteBody",
Description: "You did not provide the number of bytes specified by the Content-Length HTTP header.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrInternalError: {
Code: "InternalError",
Description: "We encountered an internal error, please try again.",
HTTPStatusCode: http.StatusInternalServerError,
},
ErrInvalidAccessKeyID: {
Code: "InvalidAccessKeyID",
Description: "The access key ID you provided does not exist in our records.",
HTTPStatusCode: http.StatusForbidden,
},
ErrInvalidBucketName: {
Code: "InvalidBucketName",
Description: "The specified bucket is not valid.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrInvalidDigest: {
Code: "InvalidDigest",
Description: "The Content-Md5 you specified is not valid.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrInvalidRange: {
Code: "InvalidRange",
Description: "The requested range is not satisfiable",
HTTPStatusCode: http.StatusRequestedRangeNotSatisfiable,
},
ErrMalformedXML: {
Code: "MalformedXML",
Description: "The XML you provided was not well-formed or did not validate against our published schema.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrMissingContentLength: {
Code: "MissingContentLength",
Description: "You must provide the Content-Length HTTP header.",
HTTPStatusCode: http.StatusLengthRequired,
},
ErrMissingContentMD5: {
Code: "MissingContentMD5",
Description: "Missing required header for this request: Content-Md5.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrMissingRequestBodyError: {
Code: "MissingRequestBodyError",
Description: "Request body is empty.",
HTTPStatusCode: http.StatusLengthRequired,
},
ErrNoSuchBucket: {
Code: "NoSuchBucket",
Description: "The specified bucket does not exist",
HTTPStatusCode: http.StatusNotFound,
},
ErrNoSuchBucketPolicy: {
Code: "NoSuchBucketPolicy",
Description: "The bucket policy does not exist",
HTTPStatusCode: http.StatusNotFound,
},
ErrNoSuchKey: {
Code: "NoSuchKey",
Description: "The specified key does not exist.",
HTTPStatusCode: http.StatusNotFound,
},
ErrNoSuchUpload: {
Code: "NoSuchUpload",
Description: "The specified multipart upload does not exist. The upload ID may be invalid, or the upload may have been aborted or completed.",
HTTPStatusCode: http.StatusNotFound,
},
ErrNotImplemented: {
Code: "NotImplemented",
Description: "A header you provided implies functionality that is not implemented",
HTTPStatusCode: http.StatusNotImplemented,
},
ErrPreconditionFailed: {
Code: "PreconditionFailed",
Description: "At least one of the pre-conditions you specified did not hold",
HTTPStatusCode: http.StatusPreconditionFailed,
},
ErrRequestTimeTooSkewed: {
Code: "RequestTimeTooSkewed",
Description: "The difference between the request time and the server's time is too large.",
HTTPStatusCode: http.StatusForbidden,
},
ErrSignatureDoesNotMatch: {
Code: "SignatureDoesNotMatch",
Description: "The request signature we calculated does not match the signature you provided. Check your key and signing method.",
HTTPStatusCode: http.StatusForbidden,
},
ErrMethodNotAllowed: {
Code: "MethodNotAllowed",
Description: "The specified method is not allowed against this resource.",
HTTPStatusCode: http.StatusMethodNotAllowed,
},
ErrInvalidPart: {
Code: "InvalidPart",
Description: "One or more of the specified parts could not be found.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrInvalidPartOrder: {
Code: "InvalidPartOrder",
Description: "The list of parts was not in ascending order. The parts list must be specified in order by part number.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrInvalidObjectState: {
Code: "InvalidObjectState",
Description: "The operation is not valid for the current state of the object.",
HTTPStatusCode: http.StatusForbidden,
},
ErrAuthorizationHeaderMalformed: {
Code: "AuthorizationHeaderMalformed",
Description: "The authorization header is malformed; the region is wrong; expecting 'us-east-1'.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrMalformedPOSTRequest: {
Code: "MalformedPOSTRequest",
Description: "The body of your POST request is not well-formed multipart/form-data.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrSignatureVersionNotSupported: {
Code: "InvalidRequest",
Description: "The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrBucketNotEmpty: {
Code: "BucketNotEmpty",
Description: "The bucket you tried to delete is not empty",
HTTPStatusCode: http.StatusConflict,
},
ErrAllAccessDisabled: {
Code: "AllAccessDisabled",
Description: "All access to this bucket has been disabled.",
HTTPStatusCode: http.StatusForbidden,
},
ErrMalformedPolicy: {
Code: "MalformedPolicy",
Description: "Policy has invalid resource.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrMissingFields: {
Code: "MissingFields",
Description: "Missing fields in request.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrMissingCredTag: {
Code: "InvalidRequest",
Description: "Missing Credential field for this request.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrCredMalformed: {
Code: "AuthorizationQueryParametersError",
Description: "Error parsing the X-Amz-Credential parameter; the Credential is mal-formed; expecting \"<YOUR-AKID>/YYYYMMDD/REGION/SERVICE/aws4_request\".",
HTTPStatusCode: http.StatusBadRequest,
},
ErrMalformedDate: {
Code: "MalformedDate",
Description: "Invalid date format header, expected to be in ISO8601, RFC1123 or RFC1123Z time format.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrMalformedPresignedDate: {
Code: "AuthorizationQueryParametersError",
Description: "X-Amz-Date must be in the ISO8601 Long Format \"yyyyMMdd'T'HHmmss'Z'\"",
HTTPStatusCode: http.StatusBadRequest,
},
// FIXME: Should contain the invalid param set as seen in https://github.com/minio/minio/issues/2385.
// right Description: "Error parsing the X-Amz-Credential parameter; incorrect date format \"%s\". This date in the credential must be in the format \"yyyyMMdd\".",
// Need changes to make sure variable messages can be constructed.
ErrMalformedCredentialDate: {
Code: "AuthorizationQueryParametersError",
Description: "Error parsing the X-Amz-Credential parameter; incorrect date format \"%s\". This date in the credential must be in the format \"yyyyMMdd\".",
HTTPStatusCode: http.StatusBadRequest,
},
// FIXME: Should contain the invalid param set as seen in https://github.com/minio/minio/issues/2385.
// right Description: "Error parsing the X-Amz-Credential parameter; the region 'us-east-' is wrong; expecting 'us-east-1'".
// Need changes to make sure variable messages can be constructed.
ErrMalformedCredentialRegion: {
Code: "AuthorizationQueryParametersError",
Description: "Error parsing the X-Amz-Credential parameter; the region is wrong;",
HTTPStatusCode: http.StatusBadRequest,
},
ErrInvalidRegion: {
Code: "InvalidRegion",
Description: "Region does not match.",
HTTPStatusCode: http.StatusBadRequest,
},
// FIXME: Should contain the invalid param set as seen in https://github.com/minio/minio/issues/2385.
// right Description: "Error parsing the X-Amz-Credential parameter; incorrect service \"s4\". This endpoint belongs to \"s3\".".
// Need changes to make sure variable messages can be constructed.
ErrInvalidService: {
Code: "AuthorizationQueryParametersError",
Description: "Error parsing the X-Amz-Credential parameter; incorrect service. This endpoint belongs to \"s3\".",
HTTPStatusCode: http.StatusBadRequest,
},
// FIXME: Should contain the invalid param set as seen in https://github.com/minio/minio/issues/2385.
// Description: "Error parsing the X-Amz-Credential parameter; incorrect terminal "aws4_reque". This endpoint uses "aws4_request".
// Need changes to make sure variable messages can be constructed.
ErrInvalidRequestVersion: {
Code: "AuthorizationQueryParametersError",
Description: "Error parsing the X-Amz-Credential parameter; incorrect terminal. This endpoint uses \"aws4_request\".",
HTTPStatusCode: http.StatusBadRequest,
},
ErrMissingSignTag: {
Code: "AccessDenied",
Description: "Signature header missing Signature field.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrMissingSignHeadersTag: {
Code: "InvalidArgument",
Description: "Signature header missing SignedHeaders field.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrPolicyAlreadyExpired: {
Code: "AccessDenied",
Description: "Invalid according to Policy: Policy expired.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrMalformedExpires: {
Code: "AuthorizationQueryParametersError",
Description: "X-Amz-Expires should be a number",
HTTPStatusCode: http.StatusBadRequest,
},
ErrNegativeExpires: {
Code: "AuthorizationQueryParametersError",
Description: "X-Amz-Expires must be non-negative",
HTTPStatusCode: http.StatusBadRequest,
},
ErrAuthHeaderEmpty: {
Code: "InvalidArgument",
Description: "Authorization header is invalid -- one and only one ' ' (space) required.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrMissingDateHeader: {
Code: "AccessDenied",
Description: "AWS authentication requires a valid Date or x-amz-date header",
HTTPStatusCode: http.StatusBadRequest,
},
ErrInvalidQuerySignatureAlgo: {
Code: "AuthorizationQueryParametersError",
Description: "X-Amz-Algorithm only supports \"AWS4-HMAC-SHA256\".",
HTTPStatusCode: http.StatusBadRequest,
},
ErrExpiredPresignRequest: {
Code: "AccessDenied",
Description: "Request has expired",
HTTPStatusCode: http.StatusForbidden,
},
ErrRequestNotReadyYet: {
Code: "AccessDenied",
Description: "Request is not valid yet",
HTTPStatusCode: http.StatusForbidden,
},
// FIXME: Actual XML error response also contains the header which missed in list of signed header parameters.
ErrUnsignedHeaders: {
Code: "AccessDenied",
Description: "There were headers present in the request which were not signed",
HTTPStatusCode: http.StatusBadRequest,
},
ErrInvalidQueryParams: {
Code: "AuthorizationQueryParametersError",
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.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrBucketAlreadyOwnedByYou: {
Code: "BucketAlreadyOwnedByYou",
Description: "Your previous request to create the named bucket succeeded and you already own it.",
HTTPStatusCode: http.StatusConflict,
},
/// Bucket notification related errors.
ErrEventNotification: {
Code: "InvalidArgument",
Description: "A specified event is not supported for notifications.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrARNNotification: {
Code: "InvalidArgument",
Description: "A specified destination ARN does not exist or is not well-formed. Verify the destination ARN.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrRegionNotification: {
Code: "InvalidArgument",
Description: "A specified destination is in a different region than the bucket. You must use a destination that resides in the same region as the bucket.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrOverlappingFilterNotification: {
Code: "InvalidArgument",
Description: "An object key name filtering rule defined with overlapping prefixes, overlapping suffixes, or overlapping combinations of prefixes and suffixes for the same event types.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrFilterNameInvalid: {
Code: "InvalidArgument",
Description: "filter rule name must be either prefix or suffix",
HTTPStatusCode: http.StatusBadRequest,
},
ErrFilterNamePrefix: {
Code: "InvalidArgument",
Description: "Cannot specify more than one prefix rule in a filter.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrFilterNameSuffix: {
Code: "InvalidArgument",
Description: "Cannot specify more than one suffix rule in a filter.",
HTTPStatusCode: http.StatusBadRequest,
},
ErrFilterValueInvalid: {
Code: "InvalidArgument",
Description: "Size of filter rule value cannot exceed 1024 bytes in UTF-8 representation",
HTTPStatusCode: http.StatusBadRequest,
},
ErrOverlappingConfigs: {
Code: "InvalidArgument",
Description: "Configurations overlap. Configurations on the same bucket cannot share a common event type.",
HTTPStatusCode: http.StatusBadRequest,
},
/// S3 extensions.
ErrContentSHA256Mismatch: {
Code: "XAmzContentSHA256Mismatch",
Description: "The provided 'x-amz-content-sha256' header does not match what was computed.",
HTTPStatusCode: http.StatusBadRequest,
},
/// Minio extensions.
ErrStorageFull: {
Code: "XMinioStorageFull",
Description: "Storage backend has reached its minimum free disk threshold. Please delete few objects to proceed.",
HTTPStatusCode: http.StatusInternalServerError,
},
ErrObjectExistsAsDirectory: {
Code: "XMinioObjectExistsAsDirectory",
Description: "Object name already exists as a directory.",
HTTPStatusCode: http.StatusConflict,
},
ErrReadQuorum: {
Code: "XMinioReadQuorum",
Description: "Multiple disk failures, unable to reconstruct data.",
HTTPStatusCode: http.StatusServiceUnavailable,
},
ErrWriteQuorum: {
Code: "XMinioWriteQuorum",
Description: "Multiple disks failures, unable to write data.",
HTTPStatusCode: http.StatusServiceUnavailable,
},
ErrPolicyNesting: {
Code: "XMinioPolicyNesting",
Description: "New bucket policy conflicts with an existing policy. Please try again with new prefix.",
HTTPStatusCode: http.StatusConflict,
},
ErrInvalidObjectName: {
Code: "XMinioInvalidObjectName",
Description: "Object name contains unsupported characters. Unsupported characters are `^*|\\\"",
HTTPStatusCode: http.StatusBadRequest,
},
ErrServerNotInitialized: {
Code: "XMinioServerNotInitialized",
Description: "Server not initialized, please try again.",
HTTPStatusCode: http.StatusServiceUnavailable,
},
// Add your error structure here.
}
// toAPIErrorCode - Converts embedded errors. Convenience
// function written to handle all cases where we have known types of
// errors returned by underlying layers.
func toAPIErrorCode(err error) (apiErr APIErrorCode) {
if err == nil {
return ErrNone
}
err = errorCause(err)
// Verify if the underlying error is signature mismatch.
switch err {
case errSignatureMismatch:
apiErr = ErrSignatureDoesNotMatch
case errContentSHA256Mismatch:
apiErr = ErrContentSHA256Mismatch
}
if apiErr != ErrNone {
// If there was a match in the above switch case.
return apiErr
}
switch err.(type) {
case
73A7
StorageFull:
apiErr = ErrStorageFull
case BadDigest:
apiErr = ErrBadDigest
case IncompleteBody:
apiErr = ErrIncompleteBody
case ObjectExistsAsDirectory:
apiErr = ErrObjectExistsAsDirectory
case PrefixAccessDenied:
apiErr = ErrAccessDenied
case BucketNameInvalid:
apiErr = ErrInvalidBucketName
case BucketNotFound:
apiErr = ErrNoSuchBucket
case BucketNotEmpty:
apiErr = ErrBucketNotEmpty
case BucketExists:
apiErr = ErrBucketAlreadyOwnedByYou
case ObjectNotFound:
apiErr = ErrNoSuchKey
case ObjectNameInvalid:
apiErr = ErrInvalidObjectName
case InvalidUploadID:
apiErr = ErrNoSuchUpload
case InvalidPart:
apiErr = ErrInvalidPart
case InsufficientWriteQuorum:
apiErr = ErrWriteQuorum
case InsufficientReadQuorum:
apiErr = ErrReadQuorum
case UnsupportedDelimiter:
apiErr = ErrNotImplemented
case InvalidMarkerPrefixCombination:
apiErr = ErrNotImplemented
case InvalidUploadIDKeyCombination:
apiErr = ErrNotImplemented
case MalformedUploadID:
apiErr = ErrNoSuchUpload
case PartTooSmall:
apiErr = ErrEntityTooSmall
case SHA256Mismatch:
apiErr = ErrContentSHA256Mismatch
case ObjectTooLarge:
apiErr = ErrEntityTooLarge
case ObjectTooSmall:
apiErr = ErrEntityTooSmall
default:
apiErr = ErrInternalError
}
return apiErr
}
// getAPIError provides API Error for input API error code.
func getAPIError(code APIErrorCode) APIError {
return errorCodeResponse[code]
}
// getErrorResponse gets in standard error and resource value and
// provides a encodable populated response values
func getAPIErrorResponse(err APIError, resource string) APIErrorResponse {
var data = APIErrorResponse{}
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
}