tigase.xmpp.impl

## Class JabberIqPrivacy

- java.lang.Object
- - tigase.xmpp.XMPPProcessor
  - - tigase.xmpp.impl.JabberIqPrivacy

- All Implemented Interfaces:
    Comparable<XMPPImplIfc>, XMPPImplIfc, XMPPPacketFilterIfc, XMPPPreprocessorIfc, XMPPProcessorIfc

      public class JabberIqPrivacy
      extends XMPPProcessor
      implements XMPPProcessorIfc, XMPPPreprocessorIfc, XMPPPacketFilterIfc

  Describe class JabberIqPrivacy here. Created: Mon Oct 9 18:18:11 2006
  Version:
    $Rev$
  Author:
    Artur Hefczyc

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class and Description
    --- | ---
    `protected static class` | `JabberIqPrivacy.ITEM_ACTION`
    `protected static class` | `JabberIqPrivacy.ITEM_SUBSCRIPTIONS`
    `protected static class` | `JabberIqPrivacy.ITEM_TYPE`

  - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected static String` | `ACTIVE_EL_NAME`
    `protected static Element` | `BLOCKED_ELEM`
    `protected static Comparator<Element>` | `compar`
    `protected static String` | `DEFAULT_EL_NAME`
    `protected static Element[]` | `DISCO_FEATURES`
    `protected static String[][]` | `ELEMENTS`
    `protected static String` | `ERROR_EL_NAME`
    `protected static String` | `ID`
    `protected static String` | `LIST_EL_NAME`
    `protected static Logger` | `log` Private logger for class instances.
    `protected static String` | `PRESENCE_EL_NAME`
    `protected static String` | `PRESENCE_IN_EL_NAME`
    `protected static String` | `PRESENCE_OUT_EL_NAME`
    `protected static RosterAbstract` | `roster_util`
    `protected static String` | `XMLNS`
    `protected static String[]` | `XMLNSS`

    - ### Fields inherited from class tigase.xmpp.XMPPProcessor

      `ALL_NAMES, ALL_PATHS, cmpInfo`

    - ### Fields inherited from interface tigase.xmpp.XMPPImplIfc

      `CLIENT_XMLNS`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `JabberIqPrivacy()`

  - ### Method Summary

    All Methods Static Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected boolean` | `allowed(Packet packet, XMPPResourceConnection session)`
    `protected boolean` | `allowedByDefault(Packet packet, XMPPResourceConnection session)`
    `void` | `filter(Packet packet, XMPPResourceConnection session, NonAuthUserRepository repo, Queue<Packet> results)`
    `String` | `id()` Method `id` returns a unique ID of the plugin.
    `protected boolean` | `matchToPrivacyListElement(boolean packetIn, Packet packet, Element elem, JabberIqPrivacy.ITEM_ACTION action)`
    `protected Packet` | `prepareError(Packet packet, XMPPResourceConnection session)`
    `boolean` | `preProcess(Packet packet, XMPPResourceConnection session, NonAuthUserRepository repo, Queue<Packet> results, Map<String,Object> settings)` Performs pre-processing of `packet`.
    `void` | `process(Packet packet, XMPPResourceConnection session, NonAuthUserRepository repo, Queue<Packet> results, Map<String,Object> settings)`
    `protected void` | `processGetRequest(Packet packet, XMPPResourceConnection session, Queue<Packet> results)`
    `protected void` | `processSetRequest(Packet packet, XMPPResourceConnection session, Queue<Packet> results)`
    `Element[]` | `supDiscoFeatures(XMPPResourceConnection session)` Method `supDiscoFeatures` returns an array of XML `Element`s with service discovery features which have to be returned to the client uppon request.
    `String[][]` | `supElementNamePaths()` Method `supElementNamePaths` returns an array of element names in form of a full path to the XML element for stanzas which can be processed by this plugin.
    `String[]` | `supNamespaces()` Method `supNamespaces` returns an array of name-spaces for stanzas which can be processed by this plugin.
    `static Authorization` | `validateList(XMPPResourceConnection session, List<Element> items)` Method description

    - ### Methods inherited from class tigase.xmpp.XMPPProcessor

      `canHandle, compareTo, concurrentThreadsPerQueue, getComponentInfo, getInstance, getStatistics, init, isSupporting, supElements, supStreamFeatures, supTypes, toString`

    - ### Methods inherited from class java.lang.Object

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

    - ### Methods inherited from interface tigase.xmpp.XMPPImplIfc

      `canHandle, concurrentQueuesNo, concurrentThreadsPerQueue, getComponentInfo, getStatistics, init, isSupporting, supElements, supStreamFeatures, supTypes`

    - ### Methods inherited from interface java.lang.Comparable

      `compareTo`

- - ### Field Detail

    - #### ACTIVE_EL_NAME

          protected static final String ACTIVE_EL_NAME

      See Also:
        Constant Field Values

    - #### BLOCKED_ELEM

          protected static final Element BLOCKED_ELEM

    - #### DEFAULT_EL_NAME

          protected static final String DEFAULT_EL_NAME

      See Also:
        Constant Field Values

    - #### ELEMENTS

          protected static final String[][] ELEMENTS

    - #### LIST_EL_NAME

          protected static final String LIST_EL_NAME

      See Also:
        Constant Field Values

    - #### log

          protected static Logger log

      Private logger for class instances.

    - #### ERROR_EL_NAME

          protected static final String ERROR_EL_NAME

      See Also:
        Constant Field Values

    - #### PRESENCE_EL_NAME

          protected static final String PRESENCE_EL_NAME

      See Also:
        Constant Field Values

    - #### PRESENCE_IN_EL_NAME

          protected static final String PRESENCE_IN_EL_NAME

      See Also:
        Constant Field Values

    - #### PRESENCE_OUT_EL_NAME

          protected static final String PRESENCE_OUT_EL_NAME

      See Also:
        Constant Field Values

    - #### XMLNS

          protected static final String XMLNS

      See Also:
        Constant Field Values

    - #### ID

          protected static final String ID

      See Also:
        Constant Field Values

    - #### XMLNSS

          protected static final String[] XMLNSS

    - #### roster_util

          protected static RosterAbstract roster_util

    - #### DISCO_FEATURES

          protected static final Element[] DISCO_FEATURES

    - #### compar

          protected static final Comparator<Element> compar

  - ### Constructor Detail

    - #### JabberIqPrivacy

          public JabberIqPrivacy()

  - ### Method Detail

    - #### filter

          public void filter(Packet packet,
                             XMPPResourceConnection session,
                             NonAuthUserRepository repo,
                             Queue<Packet> results)

      Specified by:
        `filter` in interface `XMPPPacketFilterIfc`

    - #### id

          public String id()

      Description copied from interface: `XMPPImplIfc`
      Method `id` returns a unique ID of the plugin. Each plugin has own, unique ID which is used in the configuration file to determine whether it needs to be loaded or not. In most cases the ID can be equal to XMLNS of the packages processed by the plugin.
      Specified by:
        `id` in interface `XMPPImplIfc`
      Returns:
        a `String` value

    - #### preProcess

          public boolean preProcess(Packet packet,
                                    XMPPResourceConnection session,
                                    NonAuthUserRepository repo,
                                    Queue<Packet> results,
                                    Map<String,Object> settings)

      Performs pre-processing of `packet`. Intention for the pre-processors is to allow them for packet blocking.
      `preProcess` method checks only incoming stanzas so it doesn't check for presence-out at all.
      Specified by:
        `preProcess` in interface `XMPPPreprocessorIfc`
      Parameters:
        `packet` - packet is which being processed. This parameter may never be null. Even though this is not immutable object it mustn't be altered. None of it's fields or attributes can be changed during processing.
        `session` - user session which keeps all the user session data and also gives an access to the user's repository data. It allows for storing information in a permanent storage or in memory only during the live of the online session. This parameter can be null if there is no online user session at the time of the packet processing.
        `repo` - this is a user data storage which is normally used when the user session (parameter above) is null. This is repository allows for a very restricted access only. It allows for storing some user private data (doesn't allow overwriting existing data) like messages for offline users and it also allows for reading user public data like VCard.
        `results` - this a collection with packets which have been generated as input packet processing results. Regardless a response to a user request is sent or the packet is forwarded to it's destination it is always required that a copy of the input packet is created and stored in the results queue.
        `settings` - this map keeps plugin specific settings loaded from the Tigase server configuration. In most cases it is unused, however if the plugin needs to access an external database that this is a way to pass database connection string to the plugin.
      Returns:
        the pre-processing result; if the value is ‘true’ then the packet is blocked and no further processing is performed.

    - #### process

          public void process(Packet packet,
                              XMPPResourceConnection session,
                              NonAuthUserRepository repo,
                              Queue<Packet> results,
                              Map<String,Object> settings)
                       throws XMPPException

      Specified by:
        `process` in interface `XMPPProcessorIfc`
      Parameters:
        `packet` - packet is which being processed. This parameter may never be null. Even though this is not immutable object it mustn't be altered. None of it's fields or attributes can be changed during processing.
        `session` - user session which keeps all the user session data and also gives an access to the user's repository data. It allows for storing information in a permanent storage or in memory only during the live of the online session. This parameter can be null if there is no online user session at the time of the packet processing.
        `repo` - this is a user data storage which is normally used when the user session (parameter above) is null. This is repository allows for a very restricted access only. It allows for storing some user private data (doesn't allow overwriting existing data) like messages for offline users and it also allows for reading user public data like VCard.
        `results` - this a collection with packets which have been generated as input packet processing results. Regardless a response to a user request is sent or the packet is forwarded to it's destination it is always required that a copy of the input packet is created and stored in the results queue.
        `settings` - this map keeps plugin specific settings loaded from the Tigase server configuration. In most cases it is unused, however if the plugin needs to access an external database that this is a way to pass database connection string to the plugin.
      Throws:
        `XMPPException`

    - #### supDiscoFeatures

          public Element[] supDiscoFeatures(XMPPResourceConnection session)

      Description copied from interface: `XMPPImplIfc`
      Method `supDiscoFeatures` returns an array of XML `Element`s with service discovery features which have to be returned to the client uppon request. Service discovery features returned by this method correspond to services supported by this plugin.
      Specified by:
        `supDiscoFeatures` in interface `XMPPImplIfc`
      Overrides:
        `supDiscoFeatures` in class `XMPPProcessor`
      Parameters:
        `session` - a `XMPPResourceConnection` value
      Returns:
        an `Element[]` value

    - #### supElementNamePaths

          public String[][] supElementNamePaths()

      Description copied from interface: `XMPPImplIfc`
      Method `supElementNamePaths` returns an array of element names in form of a full path to the XML element for stanzas which can be processed by this plugin. Each element name path corresponds to XMLNS returned in array by `supNamespaces()` method. The element path itself is represented by a String array with each path element as a separate String.
      Specified by:
        `supElementNamePaths` in interface `XMPPImplIfc`
      Overrides:
        `supElementNamePaths` in class `XMPPProcessor`
      Returns:
        a `String[][]` value is an array for element paths for which the plugin offers processing capabilities. Each path is in form of a String array in order to reduce parsing overhead.

    - #### supNamespaces

          public String[] supNamespaces()

      Description copied from interface: `XMPPImplIfc`
      Method `supNamespaces` returns an array of name-spaces for stanzas which can be processed by this plugin. Each namespace corresponds to element name returned in array by `supElemenets()` method.
      Specified by:
        `supNamespaces` in interface `XMPPImplIfc`
      Overrides:
        `supNamespaces` in class `XMPPProcessor`
      Returns:
        a `String[]` value

    - #### allowed

          protected boolean allowed(Packet packet,
                                    XMPPResourceConnection session)

    - #### allowedByDefault

          protected boolean allowedByDefault(Packet packet,
                                             XMPPResourceConnection session)
                                      throws NoConnectionIdException,
                                             NotAuthorizedException

      Throws:
        `NoConnectionIdException`
        `NotAuthorizedException`

    - #### matchToPrivacyListElement

          protected boolean matchToPrivacyListElement(boolean packetIn,
                                                      Packet packet,
                                                      Element elem,
                                                      JabberIqPrivacy.ITEM_ACTION action)

    - #### prepareError

          protected Packet prepareError(Packet packet,
                                        XMPPResourceConnection session)

    - #### processGetRequest

          protected void processGetRequest(Packet packet,
                                           XMPPResourceConnection session,
                                           Queue<Packet> results)
                                    throws NotAuthorizedException,
                                           XMPPException,
                                           TigaseDBException

      Throws:
        `NotAuthorizedException`
        `XMPPException`
        `TigaseDBException`

    - #### processSetRequest

          protected void processSetRequest(Packet packet,
                                           XMPPResourceConnection session,
                                           Queue<Packet> results)
                                    throws NotAuthorizedException,
                                           XMPPException,
                                           TigaseDBException

      Throws:
        `NotAuthorizedException`
        `XMPPException`
        `TigaseDBException`

    - #### validateList

          public static Authorization validateList(XMPPResourceConnection session,
                                                   List<Element> items)

      Method description
      Parameters:
        `session` -
        `items` -

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