Package de.brendamour.jpasskit.util

Class CertUtils

java.lang.Object

de.brendamour.jpasskit.util.CertUtils

public class CertUtils
extends Object

Constructor Summary

Constructors

Constructor	Description
CertUtils()

Method Summary

Modifier and Type	Method	Description
static Set<String>	extractApnsTopics(X509Certificate certificate)	Extract topics for sending push notifications from X509Certificate certificate.
static org.apache.commons.lang3.tuple.ImmutablePair<PrivateKey,X509Certificate>	extractCertificateWithKey(KeyStore keyStore, char[] keyStorePassword)	Extract a pair of key and certificate from an already loaded KeyStore.
static String	getProviderName()
static InputStream	toInputStream(String path)	Load a keystore from an already opened InputStream.
static KeyStore	toKeyStore(InputStream keyStoreInputStream, char[] keyStorePassword)	Load a keystore from an already opened InputStream.
static X509Certificate	toX509Certificate(InputStream certificateInputStream)	Load a DER Certificate from an already opened InputStream.

Methods inherited from class java.lang.Object

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

Constructor Details

CertUtils

public CertUtils()

Method Details

toInputStream

public static InputStream toInputStream(String path)
                                 throws FileNotFoundException

Load a keystore from an already opened InputStream. The caller is responsible for closing the resulting stream when it's no longer needed.

Parameters:

path - path of a key store or certificate.

Returns:

InputStream loaded from path

Throws:

FileNotFoundException - If no file exists at the given path.

toKeyStore

public static KeyStore toKeyStore(InputStream keyStoreInputStream,
 char[] keyStorePassword)
                           throws CertificateException

Load a keystore from an already opened InputStream. The caller is responsible for closing the stream after this method completes successfully or fails.

Parameters:

keyStoreInputStream - InputStream containing the signing key store.

keyStorePassword - password to access the key store.

Returns:

KeyStore loaded from keyPath

Throws:

IllegalArgumentException - If either keyPath is or keyPath or keyPassword is empty.

IllegalStateException - If KeyStore loading failed.

CertificateException - If any of the certificates in the keystore could not be loaded.

toX509Certificate

public static X509Certificate toX509Certificate(InputStream certificateInputStream)
                                         throws CertificateException

Load a DER Certificate from an already opened InputStream. The caller is responsible for closing the stream after this method completes successfully or fails.

Parameters:

certificateInputStream - InputStream containing the certificate.

Returns:

X509Certificate loaded from certificateInputStream

Throws:

IllegalStateException - If X509Certificate loading failed.

CertificateException - If X509Certificate is invalid or cannot be loaded.

extractCertificateWithKey

public static org.apache.commons.lang3.tuple.ImmutablePair<PrivateKey,X509Certificate> extractCertificateWithKey(KeyStore keyStore,
 char[] keyStorePassword)

Extract a pair of key and certificate from an already loaded KeyStore.

Parameters:

keyStore - KeyStore instance.

keyStorePassword - password to access the key store.

Returns:

pair of valid PrivateKey and X509Certificate loaded from keyStore

Throws:

IllegalStateException - If X509Certificate loading failed.

extractApnsTopics

public static Set<String> extractApnsTopics(X509Certificate certificate)
                                     throws IOException

Extract topics for sending push notifications from X509Certificate certificate.

Parameters:

certificate - X509Certificate instance.

Returns:

unique Set of topics from a certificate

Throws:

IOException - If X509Certificate parsing failed.

getProviderName

public static String getProviderName()