| CDO and Negotiator [message #421775] |
Wed, 13 August 2008 12:52  |
Eclipse User |
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Originally posted by: fdo.scodi.ch
Hello
I'm trying to use the CDO Negotiator and it does work.
So my problem now, the exception that is thrown on the client side, is not
really an exception I can use.
If I change my PasswordCredentials to "user2", I get the following:
org.eclipse.net4j.connector.ConnectorException: Connector not connected
....
On the server side I get a much better exception:
java.lang.SecurityException: No such user: user2
....
This is the exception I would like to have on the client side.
Here is my server configuration:
<acceptor type="tcp" listenAddr="0.0.0.0" port="2036">
<negotiator type="challenge" description="c:/temp/users.db"/>
</acceptor>
This here is my client:
IPasswordCredentialsProvider credentialsProvider = new
PasswordCredentialsProvider(new
PasswordCredentials("user","pw".toCharArray()));
ResponseNegotiator responseNegotiator = new ResponseNegotiator();
responseNegotiator.setCredentialsProvider(credentialsProvide r);
responseNegotiator.activate();
Net4jTransportInjector.clientNegotiator = responseNegotiator;
IManagedContainer container = ContainerUtil.createContainer(); // Create
a wiring container
Net4jUtil.prepareContainer(container); // Prepare the Net4j kernel
TCPUtil.prepareContainer(container); // Prepare the JVM transport
CDOUtil.prepareContainer(container, false); // Prepare the CDO client
IConnector connector = TCPUtil.getConnector(container, URL); // Open a
TCP connection
CDOSessionConfiguration configuration =
CDOUtil.createSessionConfiguration();
configuration.setConnector(connector);
configuration.setRepositoryName(REPOSITORY);
configuration.setLegacySupportEnabled(false);
CDOSession session = configuration.openSession();
session.getPackageRegistry().putEPackage(DataPackage.eINSTAN CE);
So I don't know if this is the correct way to do this on the client side,
if not correct me. Maybe something is initialized the wrong way...
Is there some documentation on Negotiators?
thanks for help
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| Re: CDO and Negotiator [message #421785 is a reply to message #421775] |
Wed, 13 August 2008 14:14  |
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Hi Flavio,
I'm not absolutely sure but IIRC the challenge negotiator by design does
not answer back falied authentication. Generally I believe that a client
must at least not be able to distinguish invalid user name from password
mismatch. But if you feel that the connector should throw a
SecurityException please file an enhancement request so that I can look
at this.
Cheers
/Eike
Flavio Donzé schrieb:
> Hello
>
> I'm trying to use the CDO Negotiator and it does work.
>
> So my problem now, the exception that is thrown on the client side, is
> not really an exception I can use. If I change my PasswordCredentials
> to "user2", I get the following:
> org.eclipse.net4j.connector.ConnectorException: Connector not connected
> ....
>
> On the server side I get a much better exception:
> java.lang.SecurityException: No such user: user2
> ....
>
> This is the exception I would like to have on the client side.
>
> Here is my server configuration:
>
> <acceptor type="tcp" listenAddr="0.0.0.0" port="2036">
> <negotiator type="challenge" description="c:/temp/users.db"/>
> </acceptor>
>
> This here is my client:
>
> IPasswordCredentialsProvider credentialsProvider = new
> PasswordCredentialsProvider(new
> PasswordCredentials("user","pw".toCharArray()));
>
> ResponseNegotiator responseNegotiator = new ResponseNegotiator();
> responseNegotiator.setCredentialsProvider(credentialsProvide r);
> responseNegotiator.activate();
> Net4jTransportInjector.clientNegotiator =
> responseNegotiator;
>
> IManagedContainer container = ContainerUtil.createContainer();
> // Create a wiring container
> Net4jUtil.prepareContainer(container); // Prepare the Net4j
> kernel
> TCPUtil.prepareContainer(container); // Prepare the JVM transport
> CDOUtil.prepareContainer(container, false); // Prepare the CDO
> client
>
> IConnector connector = TCPUtil.getConnector(container, URL);
> // Open a TCP connection
> CDOSessionConfiguration configuration =
> CDOUtil.createSessionConfiguration();
> configuration.setConnector(connector);
> configuration.setRepositoryName(REPOSITORY);
> configuration.setLegacySupportEnabled(false);
> CDOSession session = configuration.openSession();
> session.getPackageRegistry().putEPackage(DataPackage.eINSTAN CE);
>
>
> So I don't know if this is the correct way to do this on the client
> side, if not correct me. Maybe something is initialized the wrong way...
>
> Is there some documentation on Negotiators?
>
> thanks for help
>
>
Cheers
/Eike
----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper
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| Re: CDO and Negotiator [message #421801 is a reply to message #421785] |
Wed, 13 August 2008 18:41 |
|
FYI:
244029: Challenge Negotiator should throw an SecurityException if login
failed
https://bugs.eclipse.org/bugs/show_bug.cgi?id=244029
Eike Stepper schrieb:
> Hi Flavio,
>
> I'm not absolutely sure but IIRC the challenge negotiator by design
> does not answer back falied authentication. Generally I believe that a
> client must at least not be able to distinguish invalid user name from
> password mismatch. But if you feel that the connector should throw a
> SecurityException please file an enhancement request so that I can
> look at this.
>
> Cheers
> /Eike
>
>
>
> Flavio Donzé schrieb:
>> Hello
>>
>> I'm trying to use the CDO Negotiator and it does work.
>>
>> So my problem now, the exception that is thrown on the client side,
>> is not really an exception I can use. If I change my
>> PasswordCredentials to "user2", I get the following:
>> org.eclipse.net4j.connector.ConnectorException: Connector not connected
>> ....
>>
>> On the server side I get a much better exception:
>> java.lang.SecurityException: No such user: user2
>> ....
>>
>> This is the exception I would like to have on the client side.
>>
>> Here is my server configuration:
>>
>> <acceptor type="tcp" listenAddr="0.0.0.0" port="2036">
>> <negotiator type="challenge" description="c:/temp/users.db"/>
>> </acceptor>
>>
>> This here is my client:
>>
>> IPasswordCredentialsProvider credentialsProvider = new
>> PasswordCredentialsProvider(new
>> PasswordCredentials("user","pw".toCharArray()));
>>
>> ResponseNegotiator responseNegotiator = new
>> ResponseNegotiator();
>> responseNegotiator.setCredentialsProvider(credentialsProvide r);
>> responseNegotiator.activate();
>> Net4jTransportInjector.clientNegotiator =
>> responseNegotiator;
>>
>> IManagedContainer container =
>> ContainerUtil.createContainer(); // Create a wiring container
>> Net4jUtil.prepareContainer(container); // Prepare the Net4j
>> kernel
>> TCPUtil.prepareContainer(container); // Prepare the JVM
>> transport
>> CDOUtil.prepareContainer(container, false); // Prepare the
>> CDO client
>>
>> IConnector connector = TCPUtil.getConnector(container, URL);
>> // Open a TCP connection
>> CDOSessionConfiguration configuration =
>> CDOUtil.createSessionConfiguration();
>> configuration.setConnector(connector);
>> configuration.setRepositoryName(REPOSITORY);
>> configuration.setLegacySupportEnabled(false);
>> CDOSession session =
>> configuration.openSession();
>> session.getPackageRegistry().putEPackage(DataPackage.eINSTAN CE);
>>
>>
>> So I don't know if this is the correct way to do this on the client
>> side, if not correct me. Maybe something is initialized the wrong way...
>>
>> Is there some documentation on Negotiators?
>>
>> thanks for help
>>
>>
Cheers
/Eike
----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper
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