package openid

import (
	"crypto"
	"crypto/ecdsa"
	"crypto/ed25519"
	"crypto/elliptic"
	"crypto/rsa"
	"encoding/base64"
	"errors"
	"fmt"
	"math/big"
)

// JWKS - https://tools.ietf.org/html/rfc7517
type JWKS struct {
	Keys []*JWKS `json:"keys,omitempty"`

	Kty string `json:"kty"`
	Use string `json:"use,omitempty"`
	Kid string `json:"kid,omitempty"`
	Alg string `json:"alg,omitempty"`

	bucketSSEConfig = "bucket-encryption.xml"
)

// PutBucketEncryptionHandler - Stores given bucket encryption configuration
// https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketEncryption.html
func (api objectAPIHandlers) PutBucketEncryptionHandler(w http.ResponseWriter, r *http.Request) {
	ctx := newContext(r, w, "PutBucketEncryption")

	defer logger.AuditLog(ctx, w, r, mustGetClaimsFromToken(r))

type STSErrorCode int

//go:generate stringer -type=STSErrorCode -trimprefix=Err $GOFILE

// Error codes, non exhaustive list - http://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRoleWithSAML.html
const (
	ErrSTSNone STSErrorCode = iota
	ErrSTSAccessDenied
	ErrSTSMissingParameter
	ErrSTSInvalidParameterValue
	ErrSTSWebIdentityExpiredToken
	ErrSTSClientGrantsExpiredToken
	ErrSTSInvalidClientGrantsToken

			// handle otherwise we would see a signature mismatch.
			// `aws-cli` sets this as part of signed headers.
			//
			// According to
			// http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.20
			// Expect header is always of form:
			//
			//   Expect       =  "Expect" ":" 1#expectation
			//   expectation  =  "100-continue" | expectation-extension
			//

	bucketPolicyConfig = "policy.json"
)

// PutBucketPolicyHandler - This HTTP handler stores given bucket policy configuration as per
// https://docs.aws.amazon.com/AmazonS3/latest/dev/access-policy-language-overview.html
func (api objectAPIHandlers) PutBucketPolicyHandler(w http.ResponseWriter, r *http.Request) {
	ctx := newContext(r, w, "PutBucketPolicy")

	defer logger.AuditLog(ctx, w, r, mustGetClaimsFromToken(r))

	)

	ErrInvalidNumberOfErasureEndpoints = newErrFn(
		"Invalid total number of endpoints for erasure mode",
		"Please provide number of endpoints greater or equal to 2",
		"For more information, please refer to https://min.io/docs/minio/linux/operations/concepts/erasure-coding.html",
	)

	ErrStorageClassValue = newErrFn(

	// MinioBannerName - MinIO banner name for startup message.
	MinioBannerName = "MinIO Object Storage Server"

	// MinioLicense - MinIO server license.
	MinioLicense = "GNU AGPLv3 - https://www.gnu.org/licenses/agpl-3.0.html"

func (a And) Validate() error {
	// > This is used in a Lifecycle Rule Filter to apply a logical AND to two or more predicates.
	// ref: https://docs.aws.amazon.com/AmazonS3/latest/API/API_LifecycleRuleAndOperator.html
	// i.e, predCount >= 2
	var predCount int
	if a.Prefix.set {
		predCount++
	}
	predCount += len(a.Tags)
	if a.ObjectSizeGreaterThan > 0 {
		predCount++
	}
	if a.ObjectSizeLessThan > 0 {
		predCount++

//
// arn:partition:service:region:account-id:resource-type/resource-id
//
// In this implementation, account-id is empty.
//
// Reference: https://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html

const (
	arnPrefixArn        = "arn"
	arnPartitionMinio   = "minio"
	arnServiceIAM       = "iam"
	arnResourceTypeRole = "role"
)

// ARN - representation of resources based on AWS ARNs.
type ARN struct {

	}

	if objInfo.IsRemote() {
		// Check if object is being restored. For more information on x-amz-restore header see
		// https://docs.aws.amazon.com/AmazonS3/latest/API/API_HeadObject.html#API_HeadObject_ResponseSyntax
		w.Header()[xhttp.AmzStorageClass] = []string{objInfo.TransitionedObject.Tier}
	}

	if lc, err := globalLifecycleSys.Get(objInfo.Bucket); err == nil {