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54ae364def
This PR introduces two new features - AWS STS compatible STS API named AssumeRoleWithClientGrants ``` POST /?Action=AssumeRoleWithClientGrants&Token=<jwt> ``` This API endpoint returns temporary access credentials, access tokens signature types supported by this API - RSA keys - ECDSA keys Fetches the required public key from the JWKS endpoints, provides them as rsa or ecdsa public keys. - External policy engine support, in this case OPA policy engine - Credentials are stored on disks
120 lines
3.9 KiB
Go
120 lines
3.9 KiB
Go
/*
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* Minio Cloud Storage, (C) 2018 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 cmd
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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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// writeSTSErrorRespone writes error headers
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func writeSTSErrorResponse(w http.ResponseWriter, errorCode STSErrorCode) {
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stsError := getSTSError(errorCode)
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// Generate error response.
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stsErrorResponse := getSTSErrorResponse(stsError)
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encodedErrorResponse := encodeResponse(stsErrorResponse)
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writeResponse(w, stsError.HTTPStatusCode, encodedErrorResponse, mimeXML)
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}
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// STSError structure
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type STSError 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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// STSErrorResponse - error response format
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type STSErrorResponse struct {
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XMLName xml.Name `xml:"https://sts.amazonaws.com/doc/2011-06-15/ ErrorResponse" json:"-"`
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Error struct {
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Type string `xml:"Type"`
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Code string `xml:"Code"`
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Message string `xml:"Message"`
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} `xml:"Error"`
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RequestID string `xml:"RequestId"`
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}
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// STSErrorCode type of error status.
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type STSErrorCode int
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// Error codes, non exhaustive list - http://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRoleWithSAML.html
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const (
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ErrSTSNone STSErrorCode = iota
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ErrSTSMissingParameter
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ErrSTSInvalidParameterValue
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ErrSTSClientGrantsExpiredToken
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ErrSTSInvalidClientGrantsToken
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ErrSTSMalformedPolicyDocument
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ErrSTSNotInitialized
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ErrSTSInternalError
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)
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// error code to STSError structure, these fields carry respective
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// descriptions for all the error responses.
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var stsErrCodeResponse = map[STSErrorCode]STSError{
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ErrSTSMissingParameter: {
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Code: "MissingParameter",
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Description: "A required parameter for the specified action is not supplied.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrSTSInvalidParameterValue: {
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Code: "InvalidParameterValue",
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Description: "An invalid or out-of-range value was supplied for the input parameter.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrSTSClientGrantsExpiredToken: {
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Code: "ExpiredToken",
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Description: "The client grants that was passed is expired or is not valid.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrSTSInvalidClientGrantsToken: {
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Code: "InvalidClientGrantsToken",
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Description: "The client grants token that was passed could not be validated by Minio.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrSTSMalformedPolicyDocument: {
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Code: "MalformedPolicyDocument",
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Description: "The request was rejected because the policy document was malformed.",
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HTTPStatusCode: http.StatusBadRequest,
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},
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ErrSTSNotInitialized: {
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Code: "STSNotInitialized",
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Description: "STS API not initialized, please try again.",
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HTTPStatusCode: http.StatusServiceUnavailable,
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},
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ErrSTSInternalError: {
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Code: "InternalError",
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Description: "We encountered an internal error generating credentials, please try again.",
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HTTPStatusCode: http.StatusInternalServerError,
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},
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}
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// getSTSError provides STS Error for input STS error code.
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func getSTSError(code STSErrorCode) STSError {
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return stsErrCodeResponse[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 getSTSErrorResponse(err STSError) STSErrorResponse {
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errRsp := STSErrorResponse{}
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errRsp.Error.Code = err.Code
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errRsp.Error.Message = err.Description
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errRsp.RequestID = "3L137"
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return errRsp
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}
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