net.datenwerke.rs.amazons3.service.amazons3

Class AWS4SignerBase

java.lang.Object

net.datenwerke.rs.amazons3.service.amazons3.AWS4SignerBase

Direct Known Subclasses:

AWS4SignerForAuthorizationHeader, AWS4SignerForChunkedUpload

public abstract class AWS4SignerBase
extends java.lang.Object

Common methods and properties for all AWS4 signer variants

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	ALGORITHM
static java.lang.String	DateStringFormat
static java.lang.String	EMPTY_BODY_SHA256 SHA256 hash of an empty request body
static java.lang.String	ISO8601BasicFormat format strings for the date/time and date stamps required during signing
static java.lang.String	SCHEME
static java.lang.String	TERMINATOR
static java.lang.String	UNSIGNED_PAYLOAD

Constructor Summary

Constructors

Constructor and Description
AWS4SignerBase(java.net.URL endpointUrl, java.lang.String httpMethod, java.lang.String serviceName, java.lang.String regionName) Create a new AWS V4 signer.

Method Summary

Modifier and Type	Method and Description
static java.lang.String	getCanonicalizedQueryString(java.util.Map<java.lang.String,java.lang.String> parameters) Examines the specified query string parameters and returns a canonicalized form.
static byte[]	hash(byte[] data) Hashes the byte array using the SHA-256 algorithm.
static byte[]	hash(java.lang.String text) Hashes the string contents (assumed to be UTF-8) using the SHA-256 algorithm.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

EMPTY_BODY_SHA256

public static final java.lang.String EMPTY_BODY_SHA256

SHA256 hash of an empty request body

See Also:

Constant Field Values

UNSIGNED_PAYLOAD

public static final java.lang.String UNSIGNED_PAYLOAD

See Also:

Constant Field Values

SCHEME

public static final java.lang.String SCHEME

See Also:

Constant Field Values

ALGORITHM

public static final java.lang.String ALGORITHM

See Also:

Constant Field Values

TERMINATOR

public static final java.lang.String TERMINATOR

See Also:

Constant Field Values

ISO8601BasicFormat

public static final java.lang.String ISO8601BasicFormat

format strings for the date/time and date stamps required during signing

See Also:

Constant Field Values

DateStringFormat

public static final java.lang.String DateStringFormat

See Also:

Constant Field Values

Constructor Detail

AWS4SignerBase

public AWS4SignerBase(java.net.URL endpointUrl,
                      java.lang.String httpMethod,
                      java.lang.String serviceName,
                      java.lang.String regionName)

Create a new AWS V4 signer.

Parameters:

endpointUri - The service endpoint, including the path to any resource.

httpMethod - The HTTP verb for the request, e.g. GET.

serviceName - The signing name of the service, e.g. 's3'.

regionName - The system name of the AWS region associated with the endpoint, e.g. us-east-1.

Method Detail

getCanonicalizedQueryString

public static java.lang.String getCanonicalizedQueryString(java.util.Map<java.lang.String,java.lang.String> parameters)

Examines the specified query string parameters and returns a canonicalized form.

The canonicalized query string is formed by first sorting all the query string parameters, then URI encoding both the key and value and then joining them, in order, separating key value pairs with an '&'.

Parameters:

parameters - The query string parameters to be canonicalized.

Returns:

A canonicalized form for the specified query string parameters.

hash

public static byte[] hash(java.lang.String text)

Hashes the string contents (assumed to be UTF-8) using the SHA-256 algorithm.

hash

public static byte[] hash(byte[] data)

Hashes the byte array using the SHA-256 algorithm.