Package org.jivesoftware.smackx.ox.util

Class OpenPgpPubSubUtil

java.lang.Object

org.jivesoftware.smackx.ox.util.OpenPgpPubSubUtil

public class OpenPgpPubSubUtil
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final String	PEP_NODE_PUBLIC_KEYS	Name of the OX metadata node.
static final String	PEP_NODE_PUBLIC_KEYS_NOTIFY	Feature to be announced using the ServiceDiscoveryManager to subscribe to the OX metadata node.
static final String	PEP_NODE_SECRET_KEY	Name of the OX secret key node.

Constructor Summary

Constructors

Constructor	Description
OpenPgpPubSubUtil()

Method Summary

Modifier and Type	Method	Description
static void	changeAccessModelIfNecessary(LeafNode node, AccessModel accessModel)	Query the access model of node.
static boolean	deletePubkeysListNode(PepManager pepManager)	Delete our metadata node.
static boolean	deletePublicKeyNode(PepManager pepManager, org.pgpainless.key.OpenPgpV4Fingerprint fingerprint)	Delete the public key node of the key with fingerprint fingerprint.
static boolean	deleteSecretKeyNode(PepManager pepManager)	Delete the private backup node.
static void	depositSecretKey(XMPPConnection connection, SecretkeyElement element)	Publishes a SecretkeyElement to the secret key node.
static PubkeyElement	fetchPubkey(XMPPConnection connection, BareJid contact, org.pgpainless.key.OpenPgpV4Fingerprint v4_fingerprint)	Fetch the OpenPGP public key of a contact, identified by its OpenPGP v4_fingerprint.
static PublicKeysListElement	fetchPubkeysList(XMPPConnection connection)	Consult the public key metadata node and fetch a list of all of our published OpenPGP public keys.
static PublicKeysListElement	fetchPubkeysList(XMPPConnection connection, BareJid contact)	Consult the public key metadata node of contact to fetch the list of their published OpenPGP public keys.
static SecretkeyElement	fetchSecretKey(PepManager pepManager)	Fetch the latest SecretkeyElement from the private backup node.
static LeafNode	getOpenLeafNode(PubSubManager pubSubManager, String nodeName)	Use reflection magic to get a LeafNode without doing a disco#info query.
static String	PEP_NODE_PUBLIC_KEY(org.pgpainless.key.OpenPgpV4Fingerprint id)	Name of the OX public key node, which contains the key with id id.
static void	publishPublicKey(PepManager pepManager, PubkeyElement pubkeyElement, org.pgpainless.key.OpenPgpV4Fingerprint fingerprint)	Publish the users OpenPGP public key to the public key node if necessary.

Methods inherited from class java.lang.Object

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

Field Details

PEP_NODE_PUBLIC_KEYS

public static final String PEP_NODE_PUBLIC_KEYS

Name of the OX metadata node.

See Also:

• XEP-0373 §4.2
• Constant Field Values

PEP_NODE_SECRET_KEY

public static final String PEP_NODE_SECRET_KEY

Name of the OX secret key node.

See Also:

• Constant Field Values

PEP_NODE_PUBLIC_KEYS_NOTIFY

public static final String PEP_NODE_PUBLIC_KEYS_NOTIFY

Feature to be announced using the ServiceDiscoveryManager to subscribe to the OX metadata node.

See Also:

• XEP-0373 §4.4
• Constant Field Values

Constructor Details

OpenPgpPubSubUtil

public OpenPgpPubSubUtil()

Method Details

PEP_NODE_PUBLIC_KEY

public static String PEP_NODE_PUBLIC_KEY(org.pgpainless.key.OpenPgpV4Fingerprint id)

Name of the OX public key node, which contains the key with id id.

Parameters:

id - upper case hex encoded OpenPGP v4 fingerprint of the key.

Returns:

PEP node name.

changeAccessModelIfNecessary

public static void changeAccessModelIfNecessary(LeafNode node,
 AccessModel accessModel)
                                         throws XMPPException.XMPPErrorException,
SmackException.NotConnectedException,
InterruptedException,
SmackException.NoResponseException

Query the access model of node. If it is different from accessModel, change the access model of the node to accessModel.

Parameters:

node - LeafNode whose PubSub access model we want to change

accessModel - new access model.

Throws:

XMPPException.XMPPErrorException - in case of an XMPP protocol error.

SmackException.NotConnectedException - if we are not connected.

InterruptedException - if the thread is interrupted.

SmackException.NoResponseException - if the server doesn't respond.

See Also:

• XEP-0060 §4.5 - Node Access Models

publishPublicKey

public static void publishPublicKey(PepManager pepManager,
 PubkeyElement pubkeyElement,
 org.pgpainless.key.OpenPgpV4Fingerprint fingerprint)
                             throws InterruptedException,
PubSubException.NotALeafNodeException,
XMPPException.XMPPErrorException,
SmackException.NotConnectedException,
SmackException.NoResponseException

Publish the users OpenPGP public key to the public key node if necessary. Also announce the key to other users by updating the metadata node.

Parameters:

pepManager - The PEP manager.

pubkeyElement - PubkeyElement containing the public key

fingerprint - fingerprint of the public key

Throws:

InterruptedException - if the thread gets interrupted.

PubSubException.NotALeafNodeException - if either the metadata node or the public key node is not a LeafNode.

XMPPException.XMPPErrorException - in case of an XMPP protocol error.

SmackException.NotConnectedException - if we are not connected.

SmackException.NoResponseException - if the server doesn't respond.

See Also:

• XEP-0373 §4.1

fetchPubkeysList

public static PublicKeysListElement fetchPubkeysList(XMPPConnection connection)
                                              throws InterruptedException,
XMPPException.XMPPErrorException,
PubSubException.NotAPubSubNodeException,
PubSubException.NotALeafNodeException,
SmackException.NotConnectedException,
SmackException.NoResponseException

Consult the public key metadata node and fetch a list of all of our published OpenPGP public keys.

Parameters:

connection - XMPP connection

Returns:

content of our metadata node.

Throws:

InterruptedException - if the thread gets interrupted.

XMPPException.XMPPErrorException - in case of an XMPP protocol exception.

PubSubException.NotAPubSubNodeException - in case the queried entity is not a PubSub node

PubSubException.NotALeafNodeException - in case the queried node is not a LeafNode

SmackException.NotConnectedException - in case we are not connected

SmackException.NoResponseException - in case the server doesn't respond

See Also:

• XEP-0373 §4.3: Discovering Public Keys of a User

fetchPubkeysList

public static PublicKeysListElement fetchPubkeysList(XMPPConnection connection,
 BareJid contact)
                                              throws InterruptedException,
XMPPException.XMPPErrorException,
SmackException.NoResponseException,
PubSubException.NotALeafNodeException,
SmackException.NotConnectedException,
PubSubException.NotAPubSubNodeException

Consult the public key metadata node of contact to fetch the list of their published OpenPGP public keys.

Parameters:

connection - XMPP connection

contact - BareJid of the user we want to fetch the list from.

Returns:

content of contact's metadata node.

Throws:

InterruptedException - if the thread gets interrupted.

XMPPException.XMPPErrorException - in case of an XMPP protocol exception.

SmackException.NoResponseException - in case the server doesn't respond

PubSubException.NotALeafNodeException - in case the queried node is not a LeafNode

SmackException.NotConnectedException - in case we are not connected

PubSubException.NotAPubSubNodeException - in case the queried entity is not a PubSub node

See Also:

• XEP-0373 §4.3: Discovering Public Keys of a User

deletePubkeysListNode

public static boolean deletePubkeysListNode(PepManager pepManager)
                                     throws XMPPException.XMPPErrorException,
SmackException.NotConnectedException,
InterruptedException,
SmackException.NoResponseException

Delete our metadata node.

Parameters:

pepManager - The PEP manager.

Returns:

true if the node existed and was deleted, false if the node did not exist.

Throws:

XMPPException.XMPPErrorException - in case of an XMPP protocol error.

SmackException.NotConnectedException - if we are not connected.

InterruptedException - if the thread is interrupted.

SmackException.NoResponseException - if the server doesn't respond.

deletePublicKeyNode

public static boolean deletePublicKeyNode(PepManager pepManager,
 org.pgpainless.key.OpenPgpV4Fingerprint fingerprint)
                                   throws XMPPException.XMPPErrorException,
SmackException.NotConnectedException,
InterruptedException,
SmackException.NoResponseException

Delete the public key node of the key with fingerprint fingerprint.

Parameters:

pepManager - The PEP manager.

fingerprint - fingerprint of the key we want to delete

Returns:

true if the node existed and was deleted, false if the node did not exist.

Throws:

XMPPException.XMPPErrorException - in case of an XMPP protocol error.

SmackException.NotConnectedException - if we are not connected.

InterruptedException - if the thread gets interrupted.

SmackException.NoResponseException - if the server doesn't respond.

fetchPubkey

public static PubkeyElement fetchPubkey(XMPPConnection connection,
 BareJid contact,
 org.pgpainless.key.OpenPgpV4Fingerprint v4_fingerprint)
                                 throws InterruptedException,
XMPPException.XMPPErrorException,
PubSubException.NotAPubSubNodeException,
PubSubException.NotALeafNodeException,
SmackException.NotConnectedException,
SmackException.NoResponseException

Fetch the OpenPGP public key of a contact, identified by its OpenPGP v4_fingerprint.

Parameters:

connection - XMPP connection

contact - BareJid of the contact we want to fetch a key from.

v4_fingerprint - upper case, hex encoded v4 fingerprint of the contacts key.

Returns:

PubkeyElement containing the requested public key.

Throws:

InterruptedException - if the thread gets interrupted.A

XMPPException.XMPPErrorException - in case of an XMPP protocol error.

PubSubException.NotAPubSubNodeException - in case the targeted entity is not a PubSub node.

PubSubException.NotALeafNodeException - in case the fetched node is not a LeafNode.

SmackException.NotConnectedException - in case we are not connected.

SmackException.NoResponseException - if the server doesn't respond.

See Also:

• XEP-0373 §4.3

depositSecretKey

public static void depositSecretKey(XMPPConnection connection,
 SecretkeyElement element)
                             throws InterruptedException,
PubSubException.NotALeafNodeException,
XMPPException.XMPPErrorException,
SmackException.NotConnectedException,
SmackException.NoResponseException,
SmackException.FeatureNotSupportedException

Publishes a SecretkeyElement to the secret key node. The node will be configured to use the whitelist access model to prevent access from subscribers.

Parameters:

connection - XMPPConnection of the user

element - a SecretkeyElement containing the encrypted secret key of the user

Throws:

InterruptedException - if the thread gets interrupted.

PubSubException.NotALeafNodeException - if something is wrong with the PubSub node

XMPPException.XMPPErrorException - in case of an protocol related error

SmackException.NotConnectedException - if we are not connected

SmackException.NoResponseException - /watch?v=0peBq89ZTrc

SmackException.FeatureNotSupportedException - if the Server doesn't support the whitelist access model

See Also:

• XEP-0373 §5. Synchronizing the Secret Key with a Private PEP Node

fetchSecretKey

public static SecretkeyElement fetchSecretKey(PepManager pepManager)
                                       throws InterruptedException,
PubSubException.NotALeafNodeException,
XMPPException.XMPPErrorException,
SmackException.NotConnectedException,
SmackException.NoResponseException

Fetch the latest SecretkeyElement from the private backup node.

Parameters:

pepManager - the PEP manager.

Returns:

the secret key node or null, if it doesn't exist.

Throws:

InterruptedException - if the thread gets interrupted

PubSubException.NotALeafNodeException - if there is an issue with the PubSub node

XMPPException.XMPPErrorException - if there is an XMPP protocol related issue

SmackException.NotConnectedException - if we are not connected

SmackException.NoResponseException - /watch?v=7U0FzQzJzyI

See Also:

• XEP-0373 §5. Synchronizing the Secret Key with a Private PEP Node

deleteSecretKeyNode

public static boolean deleteSecretKeyNode(PepManager pepManager)
                                   throws XMPPException.XMPPErrorException,
SmackException.NotConnectedException,
InterruptedException,
SmackException.NoResponseException

Delete the private backup node.

Parameters:

pepManager - the PEP manager.

Returns:

true if the node existed and was deleted, false if the node did not exist.

Throws:

XMPPException.XMPPErrorException - if there is an XMPP protocol related issue

SmackException.NotConnectedException - if we are not connected

InterruptedException - if the thread gets interrupted

SmackException.NoResponseException - if the server sends no response

getOpenLeafNode

public static LeafNode getOpenLeafNode(PubSubManager pubSubManager,
 String nodeName)
                                throws PubSubException.NotALeafNodeException

Use reflection magic to get a LeafNode without doing a disco#info query. This method is useful for fetching nodes that are configured with the access model 'open', since some servers that announce support for that access model do not allow disco#info queries from contacts which are not subscribed to the node owner. Therefore this method fetches the node directly and puts it into the PubSubManagers node map. Note: Due to the lack of a disco#info query, it might happen, that the node doesn't exist on the server, even though we add it to the node map.

Parameters:

pubSubManager - pubsub manager

nodeName - name of the node

Returns:

leafNode TODO javadoc me please

Throws:

PubSubException.NotALeafNodeException - in case we already have the node cached, but it is not a LeafNode.

See Also:

• Ejabberd bug tracker about the issue
• Topic on the standards mailing list