package jwt

// This file is a re-implementation of the original code here with some
// additional allocation tweaks reproduced using GODEBUG=allocfreetrace=1
// original file https://github.com/golang-jwt/jwt/blob/main/parser.go
// borrowed under MIT License https://github.com/golang-jwt/jwt/blob/main/LICENSE

import (
	"bytes"
	"crypto"
	"crypto/hmac"
	"encoding/base64"
	"errors"
	"fmt"
	"hash"
	"sync"
	"time"

}

func TestParseSelectStatement(t *testing.T) {
	exp, err := ParseSelectStatement("select _3,_1,_2 as 'mytest'  from S3object")
	if err != nil {
		t.Fatalf("parse alias sql error: %v", err)
	}
	if exp.selectAST.Expression.Expressions[2].As != "mytest" {
		t.Fatalf("parse alias sql error: %s not equal %s", exp.selectAST.Expression.Expressions[2].As, err)
	}

	azpClaim = "azp"
)

// Validate - validates the id_token.
func (r *Config) Validate(ctx context.Context, arn arn.ARN, token, accessToken, dsecs string, claims jwtgo.MapClaims) error {
	jp := new(jwtgo.Parser)
	jp.ValidMethods = []string{
		"RS256", "RS384", "RS512",
		"ES256", "ES384", "ES512",
		"HS256", "HS384", "HS512",
		"RS3256", "RS3384", "RS3512",
		"ES3256", "ES3384", "ES3512",
	}

// minioVersionToReleaseTime - parses a standard official release
// MinIO version string.
//
// An official binary's version string is the release time formatted
// with RFC3339 (in UTC) - e.g. `2017-09-29T19:16:56Z`
func minioVersionToReleaseTime(version string) (releaseTime time.Time, err error) {
	return time.Parse(time.RFC3339, version)
}

	if !d.IsValid() {
		return Errorf("invalid destination")
	}

	if !wildcard.Match(d.Bucket, bucketName) {
		return Errorf("bucket name does not match")
	}
	return nil
}

// parseDestination - parses string to Destination.
func parseDestination(s string) (Destination, error) {
	if !strings.HasPrefix(s, DestinationARNPrefix) && !strings.HasPrefix(s, DestinationARNMinIOPrefix) {

	for _, opt := range opts {
		opt(p)
	}

	if p.adminURL == "" {
		return nil, errors.New("Admin URL cannot be empty")
	}

	_, err := url.Parse(p.adminURL)
	if err != nil {
		return nil, fmt.Errorf("Unable to parse the adminURL %s: %w", p.adminURL, err)
	}

	if p.client.Transport == nil {
		p.client.Transport = http.DefaultTransport
	}

	if p.oeConfig.TokenEndpoint == "" {

	if err := json.Unmarshal(data, &s); err != nil {
		return err
	}

	eventName, err := ParseName(s)
	if err != nil {
		return err
	}

	*name = eventName
	return nil
}

// ParseName - parses string to Name.
func ParseName(s string) (Name, error) {
	switch s {
	case "s3:BucketCreated:*":
		return BucketCreated, nil
	case "s3:BucketRemoved:*":
		return BucketRemoved, nil
	case "s3:ObjectAccessed:*":

	if uuid == "" {
		uuid = mustGetUUID()
	}
	arn := madmin.ARN{
		Type:   t.Type,
		ID:     uuid,
		Region: t.Region,
		Bucket: t.TargetBucket,
	}
	return arn.String()
}

// Returns parsed target config. If KMS is configured, remote target is decrypted
func parseBucketTargetConfig(bucket string, cdata, cmetadata []byte) (*madmin.BucketTargets, error) {
	var (
		data []byte
		err  error

}

// GetRolePolicy - returns policies associated with a role ARN.
func (sys *IAMSys) GetRolePolicy(arnStr string) (arn.ARN, string, error) {
	roleArn, err := arn.Parse(arnStr)
	if err != nil {
		return arn.ARN{}, "", fmt.Errorf("RoleARN parse err: %v", err)
	}
	rolePolicy, ok := sys.rolesMap[roleArn]
	if !ok {
		return arn.ARN{}, "", fmt.Errorf("RoleARN %s is not defined.", arnStr)
	}

	for _, b := range results.Buckets.Buckets {
		if b.Name == bucketName {
			createdBucket = b
		}
	}
	c.Assert(createdBucket.Name != "", true)

	// Parse the bucket modtime
	creationTime, err := time.Parse(iso8601TimeFormat, createdBucket.CreationDate)
	c.Assert(err, nil)

	// Check if bucket modtime is consistent (not less than current time and not late more than 5 minutes)