设置结点的ID为固定ID

https://www.java.net//forum/topic/jxta/jxta-community-forum/how-initialize-pse-jxse-27

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borysd

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Joined: 2009-11-22

 

 

Does anybody know how to initialize PSE in 2.7? If I start a rdv peer without peerId or infrastructureID then an edge peer can connect to it. As soon as I set any of IDs I'm getting the following message on the edge peer
SEVERE: EndpointRouterMsg declared src address does not match the sender's address.
tempMsgERM.getSrcAddress()=jxta://uuid-59616261646162614A78746150325033246734A29C11461D9CC3BB9B20842C1E03, tempEASuposedToBe=jxta://cbid-59616261646162614A78746150325033426F9328E59F083D855D65F748B6F87E03

It looks to me that it wants the peerId to be generated based on a certificate that jxse automatically generated for the WorldGroup. But if I want the peerId to be always the same it seems that I need to generate all artifacts for PSE myself.
How to properly initialize PSE in 2.7? I mean how it supposed to be initialized? Examples provided with jxse 2.7 were not working for me till I commented peerId out. I think there is some way designers of jxse 2.7 intended PSE to be used.

Thank you.

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buzzheavyyear

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Joined: 2005-06-18

 

 

Sounds like you are deleting the keystore each time you do a restart - if 2.7 discovers that the keystore has gone then it creates a new one and generates a new certificate. Don't forget to save and restore the configuration and it helps to delete the cache.

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borysd

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Joined: 2009-11-22

 

 

Can you explain me how to save it?
I tried
MyNetworkConfigurator.save();

but it causes exception in
PeerGroup NetPeerGroup = MyNetworkManager.startNetwork();

May 24, 2011 8:40:57 AM net.jxta.impl.peergroup.StdPeerGroup initFirst
SEVERE: Failed to make PSE membership credential 'ready for join'
May 24, 2011 8:40:57 AM net.jxta.peergroup.WorldPeerGroupFactory newWorldPeerGroup
SEVERE: World Peer Group could not be instantiated.

net.jxta.exception.PeerGroupException: Failed to login to this group: null. Error=0
at net.jxta.impl.peergroup.StdPeerGroup.initFirst(StdPeerGroup.java:704)
at net.jxta.impl.peergroup.Platform.initFirst(Platform.java:214)
at net.jxta.impl.peergroup.GenericPeerGroup.init(GenericPeerGroup.java:907)
at net.jxta.peergroup.WorldPeerGroupFactory.newWorldPeerGroup(WorldPeerGroupFactory.java:312)
at net.jxta.peergroup.WorldPeerGroupFactory.<init>(WorldPeerGroupFactory.java:182)
at net.jxta.peergroup.NetPeerGroupFactory.<init>(NetPeerGroupFactory.java:203)
at net.jxta.platform.NetworkManager.startNetwork(NetworkManager.java:408)
at Examples.K_Service.Edge_Jill_The_Customer.main(Edge_Jill_The_Customer.java:128)
Edge Jill, The Customer net.jxta.exception.PeerGroupException: World Peer Group could not be instantiated.

Thank you

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buzzheavyyear

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Joined: 2005-06-18

 

 

1. Delete your jxta run dir/folder
2. Create a new jxta configuration, including peer name, peerid if you need to, username, password and all of your network setup
3. Save the configuration file - this usually defaults to PlatformConfig in the jxta run dir
4. Set up the path to the keystore - there is a default
5. Start jxta.
6. Stop jxta, turn off the machine and have a cup of coffee
7. You might want to delete the cache files/dirs in the jxta run dir. Don't delete the keystore!
8. Load the configuration - you shouldn't need to set anything except for the username and password - these are for the keystore - everything else should be in the config file.
9. Set the keystore path if you need to ... must be the one defined above
9 Start jxta.
Read through the source of NetworkManager and NetworkConfigurtor. Believe me, it works!

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tah_mas

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Joined: 2012-08-06

 

 

I've got the same problem i.e. as soon as I set the peerID my code breaks with:

Aug 6, 2012 4:48:53 PM net.jxta.impl.endpoint.WireFormatMessageBinary$Instantiator enforceCbjxOnIncoming
SEVERE: EndpointRouterMsg declared src address does not match the sender's address. tempMsgERM.getSrcAddress()=jxta://cbid-59616261646162614E504720503250331884408F6046A2521650BBCBACD41AB303, tempEASuposedToBe=jxta://cbid-59616261646162614A787461503250335BBE5BCADE2ABB3297475FFEBE0F860903

I've followed your instructions above and modified the practicaljxta2 (http://sourceforge.net/projects/practicaljxta/files/) examples Examples.B_Exploring_Connectivity_Issues.RendezVous_Jack and Examples.B_Exploring_Connectivity_Issues.Endge_Anna to reflect this but I cannot get 2.7 to work without commenting out the setPeerId (MyNetworkConfigurator.setPeerID(PID)) and removing the configurator.save() call. Unfortunately in my application I must set the peerID so this is not a solution for me.

Any advice / pointers appreciated as I'm not sure what to try next.

Thanks,
tah_mas

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tah_mas

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Joined: 2012-08-06

 

 

ok I think I have solved it.. I used to call NetworkConfigurator.setPeerId but changing this to NetworkManager.setPeerId fixes the problem. I'm new to jxta so not quite sure what the difference is...

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 发现个问题，即使通过NetworkManager.setPeerId设置了结点id，但是通过PeerGroup.getPeerID返回的确实另外一个值，说明该调用并没有起作用。。。，Why？

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Oh, my!还是忘掉MembershipService和AccessService吧！！！

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问题基本解决，虽然对PSEMembershipService还是一知半解：

      参照《Practical JXTA II》的例子Example 620 - Custom PSE Peer Group & Joining。

 

在开始的时候创建keystore等，首先是变量声明：

    // ************************ PSEMembershipService *******************************
    // TODO: myPrivateKeyPassword与myKeyStorePassword必须相同
    public static final String myPrincipalName = "Principal - " + refPeerGroupName;
    public static final String myPrivateKeyPassword = "PrivateKey Password - " + refPeerGroupName;
//        public static final String myPrivateKeyPassword = "a123456";
    
    public static final String myKeyStoreFileName = "MyKeyStoreFile";
    public static final String myKeyStoreLocation = ".jxta";
    public static final String myKeyStorePassword = "KeyStore Password - " + refPeerGroupName;
//    public static final String myKeyStorePassword = "a123456";
    public static final String myKeyStoreProvider = "KeyStore Provider - " + refPeerGroupName;
    
    public static final File myKeyStoreDirectory = new File(myKeyStoreLocation);
    public static final File myKeyStoreFile = new File(myKeyStoreLocation + File.separator + myKeyStoreFileName);
    
    public static final X509Certificate theX509Certificate;
    public static final PrivateKey thePrivateKey;
    
    static {
        // Static initialization of certificates
        PSEUtils.IssuerInfo forPSE = PSEUtils.genCert(refPeerGroupName, null);
        theX509Certificate = forPSE.cert;
        thePrivateKey = forPSE.issuerPkey;
    }

其次是配置：

            // Preparing data
            myKeyStoreDirectory.mkdirs();
            
            // Creating the key store
            FileKeyStoreManager myFileKeyStoreManager = new FileKeyStoreManager((String)null, myKeyStoreProvider, myKeyStoreFile);
            myFileKeyStoreManager.createKeyStore(myKeyStorePassword.toCharArray());
            
            if(!myFileKeyStoreManager.isInitialized()) {
                System.out.println("Keystore is NOT initialized");
            } else {
                System.out.println("Keystore is initialized");
            }
            
            // Loading the (empty) keystore
            KeyStore myKeyStore = myFileKeyStoreManager.loadKeyStore(myKeyStorePassword.toCharArray());
            
            // Setting data
            X509Certificate[] temp = {theX509Certificate};
            myKeyStore.setKeyEntry(config.getPeerId(), thePrivateKey, myPrivateKeyPassword.toCharArray(), temp);
            
            // Saving the data
            myFileKeyStoreManager.saveKeyStore(myKeyStore, myKeyStorePassword.toCharArray());
            
            // Reloading the KeyStore
            myKeyStore = myFileKeyStoreManager.loadKeyStore(myKeyStorePassword.toCharArray());
            
            // Retrieving Certificate
            X509Certificate myCertificate = (X509Certificate)myKeyStore.getCertificate(config.getPeerId());
            
            if(myCertificate == null) {
                System.out.println("X509 Certificate CANNOT be retrieved");
            } else {
                System.out.println("X509 Certificate can be retrieved: " + myCertificate.toString());
            }
            
            // Retrieving private key
            PrivateKey myPrivateKey = (PrivateKey)myKeyStore.getKey(config.getPeerId(), myPrivateKeyPassword.toCharArray());
            if(myPrivateKey == null) {
                System.out.println("Private key CANNOT be retrieved");
            } else {
                System.out.println("Private key can be retrieved: " + myPrivateKey.toString());
            }

尤其需要注意的是：myPrivateKeyPassword与myKeyStorePassword必须相同，否则还是会抛出异常。按理来说不应该是这样的，怀疑可能是jxta的实现有问题，太乱，反正现在能跑起来了，先这样吧。

设置结点ID的时候，要调用NetworkConfigurator.setPeerId。

 

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一个有趣的现象，在ShadowPeerGroup.java的不同版本中，getDefaultModuleImplAdvertisement方法使用的MembershipService是不同的。

v2.5版中，使用的是PSEMembershipService；v2.6版中使用的是NoneMembershipService；而v2.7版中又回到了PSEMembershipService。在《Practical JXTA II》中（P127），有这样的说明，PSE Membership Service是默认的Membership Service，虽然该书基于JXTA v2.6版本（显然与源代码冲突）。

 

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晕了，还是不行，启动时抛异常（网上没有解决方法）：

SEVERE: EndpointRouterMsg declared src address does not match the sender's address. tempMsgERM.getSrcAddress()=jxta://cbid-8A634329B1C84ABF9E489F006BDE4B9EC627F04A469202F565EB71A52CAFFDA303, tempEASuposedToBe=jxta://cbid-59616261646162614A78746150325033DD0327CEA6B0E911250B6820AF286AD703

两种解决方式：

1 使用v2.6版（还需要解决无法连接外网rdv的问题）

2 参考v2.6版（主要是ShadowPeerGroup.java）,修改v2.7版，使用NoneMembershipService。

 

 我X，用v2.6版一切正常（现在连接外网rdv也没有问题了）；还是以前的观点，v2.7版问题多多，只具有参考意义。