Package org.jivesoftware.smack.filter

Class IQReplyFilter

java.lang.Object
org.jivesoftware.smack.filter.IQReplyFilter
All Implemented Interfaces:
StanzaFilter, Predicate<Stanza>
Direct Known Subclasses:
IQResultReplyFilter
public class IQReplyFilter extends Object implements StanzaFilter
Filters for packets which are a valid reply to an IQ request.

Such a stanza must have the same stanza id and must be an IQ stanza of type RESULT or ERROR. Moreover, it is necessary to check the from address to ignore forged replies.

We accept a from address if one of the following is true:

  • It matches the to address of the request.
  • The to address of the request was empty and the from address matches either the bare jid of the server or the (bare or full jid) of the client.
  • To to was our bare address and the from is empty.

For a discussion of the issues, see the thread "Spoofing of iq ids and misbehaving servers" from 2014-01 on the jdev@jabber.org mailing list and following discussion in February and March.

  • Constructor Details

    • IQReplyFilter

      public IQReplyFilter(IQ iqPacket, XMPPConnection conn)
      Filters for packets which are a valid reply to an IQ request.

      Such a stanza must have the same stanza id and must be an IQ stanza of type RESULT or ERROR. Moreover, it is necessary to check the from address to ignore forged replies.

      We accept a from address if one of the following is true:

      • It matches the to address of the request.
      • The to address of the request was empty and the from address matches either the bare jid of the server or the (bare or full jid) of the client.
      • To to was our bare address and the from is empty.

      For a discussion of the issues, see the thread "Spoofing of iq ids and misbehaving servers" from 2014-01 on the jdev@jabber.org mailing list and following discussion in February and March.

      Parameters:
      iqPacket - An IQ request. Filter for replies to this packet.
      conn - connection.

  • Method Details

    • accept

      public boolean accept(Stanza packet)
      Description copied from interface: StanzaFilter
      Tests whether or not the specified stanza should pass the filter.
      Specified by:
      accept in interface StanzaFilter
      Parameters:
      packet - the stanza to test.
      Returns:
      true if and only if stanza passes the filter.

    • toString

      public String toString()
      Overrides:
      toString in class Object