package s3select

import (
	"bytes"
	"encoding/binary"
	"fmt"
	"hash/crc32"
	"net/http"
	"strconv"
	"sync/atomic"
	"time"
)

// A message is in the format specified in
// https://docs.aws.amazon.com/AmazonS3/latest/API/images/s3select-frame-diagram-frame-overview.png
// hence the calculation is made accordingly.
func totalByteLength(headerLength, payloadLength int) int {
	return 4 + 4 + 4 + headerLength + payloadLength + 4

## Get Started

### 1. Prerequisites

- Install MinIO - [MinIO Quickstart Guide](https://min.io/docs/minio/linux/index.html#quickstart-for-linux)
- Install `awscli` - [Installing AWS Command Line Interface](https://docs.aws.amazon.com/cli/latest/userguide/cli-chap-install.html)

### 2. Set bucket WORM configuration

apiVersion: release-notes/v2
kind: bug-fix
area: traffic-management
issue:
  - 36961
releaseNotes:
  - |

import java.util.regex.Pattern;

public class S3RegionalResource {
    //https://docs.aws.amazon.com/AmazonS3/latest/userguide/access-bucket-intro.html#virtual-host-style-url-ex
    private static final Pattern REGIONAL_ENDPOINT_PATTERN = Pattern.compile("^s3:\\/\\/(.+)?\\.s3[.-]([a-z0-9-]+)\\.amazonaws\\.com(\\.[a-z]+)?\\/(.+)");

    //https://docs.aws.amazon.com/AmazonS3/latest/userguide/access-bucket-intro.html#accessing-a-bucket-using-S3-format

### Response Elements

XML response for this API is similar to [AWS STS AssumeRole](https://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRole.html#API_AssumeRole_ResponseElements)

### Errors

XML error response for this API is similar to [AWS STS AssumeRole](https://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRole.html#API_AssumeRole_Errors)

## Sample `POST` Request

```

issue: []

docs: []

releaseNotes:
- |
  **Added** values to the Istio Gateway Helm charts for configuring annotations on the ServiceAccount.  Can be used to enable [IAM Roles for Service Accounts](https://docs.aws.amazon.com/eks/latest/userguide/iam-roles-for-service-accounts.html) on AWS EKS.

upgradeNotes: []

	"versioning",
	"versions",
	"website",
}

// Signature and API related constants.
const (
	signV2Algorithm = "AWS"
)

// AWS S3 Signature V2 calculation rule is give here:
// http://docs.aws.amazon.com/AmazonS3/latest/dev/RESTAuthentication.html#RESTAuthenticationStringToSign
func doesPolicySignatureV2Match(formValues http.Header) (auth.Credentials, APIErrorCode) {
	accessKey := formValues.Get(xhttp.AmzAccessKeyID)

	fmt.Println(buf.Bytes())
}

// Continuation Message
// ====================
// Header specification
// --------------------
// Continuation messages contain two headers, as follows:
// https://docs.aws.amazon.com/AmazonS3/latest/API/images/s3select-frame-diagram-cont.png
//
// Payload specification
// ---------------------
// Continuation messages have no payload.
func genContinuationMessage() {
	buf := new(bytes.Buffer)

    public static final JvmVendorSpec ADOPTOPENJDK = matching(KnownJvmVendor.ADOPTOPENJDK);

    public static final JvmVendorSpec AMAZON = matching(KnownJvmVendor.AMAZON);

    public static final JvmVendorSpec APPLE = matching(KnownJvmVendor.APPLE);

    public static final JvmVendorSpec AZUL = matching(KnownJvmVendor.AZUL);

[BoringSSL]: https://boringssl.googlesource.com/boringssl/
[Bouncy Castle]: https://www.bouncycastle.org/java.html
[Conscrypt]: https://www.conscrypt.org/
[Corretto]: https://github.com/corretto/amazon-corretto-crypto-provider
[GraalVM]: https://www.graalvm.org/
[OpenJDK]: https://openjdk.java.net/groups/security/
[OpenJSSE]: https://github.com/openjsse/openjsse
[OpenSSL]: https://www.openssl.org/