com.amazonaws.services.cloudfront.util

Class SignerUtils

java.lang.Object

com.amazonaws.services.cloudfront.util.SignerUtils

public class SignerUtils
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SignerUtils.Protocol Enumeration of protocols for presigned URLs

Constructor Summary

Constructors

Constructor and Description
SignerUtils()

Method Summary

Modifier and Type	Method and Description
static String	buildCannedPolicy(String resourceUrlOrPath, Date dateLessThan) Returns a "canned" policy for the given parameters.
static String	buildCustomPolicy(String resourcePath, Date expiresOn, Date activeFrom, String ipAddress) Returns a custom policy for the given parameters.
static String	generateResourcePath(SignerUtils.Protocol protocol, String distributionDomain, String resourcePath) Returns the resource path for the given distribution, object, and protocol.
static PrivateKey	loadPrivateKey(File privateKeyFile) Creates a private key from the file given, either in RSA private key (.pem) or pkcs8 (.der) format.
static PrivateKey	loadPrivateKey(String privateKeyFilePath)
static String	makeBytesUrlSafe(byte[] bytes) Converts the given data to be safe for use in signed URLs for a private distribution by using specialized Base64 encoding.
static String	makeStringUrlSafe(String str) Converts the given string to be safe for use in signed URLs for a private distribution.
static byte[]	signWithSha1RSA(byte[] dataToSign, PrivateKey privateKey) Signs the data given with the private key given, using the SHA1withRSA algorithm provided by bouncy castle.

Methods inherited from class java.lang.Object

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

Constructor Detail

SignerUtils

public SignerUtils()

Method Detail

buildCannedPolicy

public static String buildCannedPolicy(String resourceUrlOrPath,
                                       Date dateLessThan)

Returns a "canned" policy for the given parameters. For more information, see Overview of Signed URLs.

buildCustomPolicy

public static String buildCustomPolicy(String resourcePath,
                                       Date expiresOn,
                                       Date activeFrom,
                                       String ipAddress)

Returns a custom policy for the given parameters.

makeBytesUrlSafe

public static String makeBytesUrlSafe(byte[] bytes)

Converts the given data to be safe for use in signed URLs for a private distribution by using specialized Base64 encoding.

makeStringUrlSafe

public static String makeStringUrlSafe(String str)

Converts the given string to be safe for use in signed URLs for a private distribution.

generateResourcePath

public static String generateResourcePath(SignerUtils.Protocol protocol,
                                          String distributionDomain,
                                          String resourcePath)

Returns the resource path for the given distribution, object, and protocol.

signWithSha1RSA

public static byte[] signWithSha1RSA(byte[] dataToSign,
                                     PrivateKey privateKey)
                              throws InvalidKeyException

Signs the data given with the private key given, using the SHA1withRSA algorithm provided by bouncy castle.

Throws:

InvalidKeyException

loadPrivateKey

public static PrivateKey loadPrivateKey(File privateKeyFile)
                                 throws InvalidKeySpecException,
                                        IOException

Creates a private key from the file given, either in RSA private key (.pem) or pkcs8 (.der) format. Other formats will cause an exception to be thrown.

Throws:

InvalidKeySpecException

IOException

loadPrivateKey

public static PrivateKey loadPrivateKey(String privateKeyFilePath)
                                 throws InvalidKeySpecException,
                                        IOException

Throws:

InvalidKeySpecException

IOException