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https://issues.apache.org/jira/browse/TINKERPOP-2389?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17222192#comment-17222192
]
ASF GitHub Bot commented on TINKERPOP-2389:
-------------------------------------------
vtslab commented on a change in pull request #1308:
URL: https://github.com/apache/tinkerpop/pull/1308#discussion_r513471861
##########
File path:
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/util/BytecodeUtil.java
##########
@@ -43,4 +47,16 @@ private BytecodeUtil() {}
s ->
s.getOperator().equals(TraversalSource.Symbols.withStrategies) &&
clazz.isAssignableFrom(s.getArguments()[0].getClass())),
os -> (A) os.getArguments()[0]);
}
+
+ /**
+ * Parses {@link Bytecode} to find {@link Step} objects in the step
instructions.
+ * @return
+ */
+ public static Iterator<Step> findSteps(final Bytecode bytecode, final
Class<?> clazz) {
Review comment:
OK, I will do that. Note that the bytecode analysis of lambdas depends
on magic strings that will come from the JavaTranslator anyway. So, this
implies moving the magic strings to ByteUtil and also touching JavaTranslator
(for the better!)
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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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