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https://issues.apache.org/jira/browse/TINKERPOP-2389?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17172358#comment-17172358
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ASF GitHub Bot commented on TINKERPOP-2389:
-------------------------------------------
vtslab opened a new pull request #1308:
URL: https://github.com/apache/tinkerpop/pull/1308
[https://issues.apache.org/jira/browse/TINKERPOP-2389](https://issues.apache.org/jira/browse/TINKERPOP-2389)
This work is by no means finished, but is a first shot along the lines of
the discussion linked to in the JIRA ticket. The work includes and Authorized
API, called from the AbstractChannelizer, as well as a small
WhitelistAuthorizer demo implementation included in the gremlin-server tests.
The current WIP PR is only intended to simplify a review of this first concept.
As the RequestMessage object passed to the authorize() method is not easy to
handle, I thought it useful to do some first preprocessing common to future
Authorizer implementations:
- split authorization requests in those for bytecode requests and those for
string-based requests
- get and cast the object corresponding to Token.ARGS_GREMLIN
This is not entirely consistent though as the other Token.ARGS_XYZ are left
unpacked in the original RequestMessage.
Any feedback is welcomed.
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> Authorization support in TinkerPop
> ----------------------------------
>
> Key: TINKERPOP-2389
> URL: https://issues.apache.org/jira/browse/TINKERPOP-2389
> Project: TinkerPop
> Issue Type: Improvement
> Components: server
> Affects Versions: 3.4.7
> Reporter: Shekhar Bansal
> Priority: Major
> Attachments: Screenshot 2020-06-25 at 15.15.04.png
>
>
> Use case:
> # Tinkerpop supports multiple graphs using a single API and admin might want
> to restrict access to some of the graphs.
> # Admin might want to restrict read/write access to certain users.
>
> Proposal
> Add read/write access restrictions at graph level. We can extend it to
> executing scripts by adding execute privileges.
>
> Changes required
> Add `authorizer` block similar to `authentication` block in yaml file
>
> {code:java}
> authorization: {
> authorizer:
> org.apache.tinkerpop.gremlin.server.authorization.AllowAllAuthorizer,
> authorizationHandler:
> org.apache.tinkerpop.gremlin.server.handler.SaslAuthorizationHandler,
> config: {
> }
> }{code}
>
> Authorization will be done only if authentication is enabled. Authentication
> is done at per session basis while authorization will be done for each and
> every request.
> In `SaslAuthorizationHandler` or `HttpAuthorizationHandler` query will be
> parsed and depending on the step instructions, the query will be marked as of
> type read or write and then privilege evaluation will be done by calling
> `isAccessAllowed` method of `Authorizer`
> {code:java}
> public interface Authorizer {
> /**
> * Whether or not the authorization requires check.
> * If false will not authorzie user.
> */
> public boolean requireAuthorization();
> /**
> * Setup is called once upon system startup to initialize the {@code
> Authorizer}.
> */
> public void setup(final Map<String, Object> config);
> /**
> * A "standard" authorization implementation
> */
> public boolean isAccessAllowed(AuthorizationRequest authorizationRequest)
> throws AuthorizationException;
> }
> {code}
> Access policies can be defined in tools like `Apache Ranger`, sample policy:
> !Screenshot 2020-06-25 at 15.15.04.png|width=1017,height=548!
>
>
>
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