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/*
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* Minimalist Object 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 api
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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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// Error structure
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type Error 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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// ErrorResponse - error response format
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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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Resource string
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RequestID string
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HostID string
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}
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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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AccessDenied = iota
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BadDigest
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BucketAlreadyExists
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EntityTooSmall
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EntityTooLarge
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IncompleteBody
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InternalError
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InvalidAccessKeyID
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InvalidBucketName
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InvalidDigest
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InvalidRange
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MalformedXML
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MissingContentLength
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MissingRequestBodyError
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NoSuchBucket
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NoSuchKey
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NoSuchUpload
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NotImplemented
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RequestTimeTooSkewed
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SignatureDoesNotMatch
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TooManyBuckets
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)
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// Error codes, non exhaustive list - standard HTTP errors
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const (
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NotAcceptable = iota + 21
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)
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// Error code to Error structure map
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var errorCodeResponse = map[int]Error{
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AccessDenied: {
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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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BadDigest: {
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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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BucketAlreadyExists: {
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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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EntityTooSmall: {
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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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EntityTooLarge: {
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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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IncompleteBody: {
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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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InternalError: {
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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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InvalidAccessKeyID: {
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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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InvalidBucketName: {
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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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InvalidDigest: {
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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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InvalidRange: {
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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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MalformedXML: {
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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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MissingContentLength: {
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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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MissingRequestBodyError: {
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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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NoSuchBucket: {
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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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NoSuchKey: {
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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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NoSuchUpload: {
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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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NotImplemented: {
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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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RequestTimeTooSkewed: {
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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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SignatureDoesNotMatch: {
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Code: "SignatureDoesNotMatch",
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Description: "The request signature we calculated does not match the signature you provided.",
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HTTPStatusCode: http.StatusForbidden,
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},
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TooManyBuckets: {
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Code: "TooManyBuckets",
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Description: "You have attempted to create more buckets than allowed.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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NotAcceptable: {
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Code: "NotAcceptable",
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Description: "The requested resource is only capable of generating content not acceptable according to the Accept headers sent in the request.",
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HTTPStatusCode: http.StatusNotAcceptable,
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},
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}
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// errorCodeError provides errorCode to Error. It returns empty if the code provided is unknown
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func getErrorCode(code int) Error {
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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 getErrorResponse(err Error, resource string) ErrorResponse {
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var data = ErrorResponse{}
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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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