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https://issues.apache.org/jira/browse/SOLR-7275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14493947#comment-14493947
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Shalin Shekhar Mangar commented on SOLR-7275:
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Thanks Anshum. I have a comment and a few questions:
# Since this issue is about creating a pluggable authorization module, please
create a different linked issue for a default/basic implementation. We should
not be discussing/reviewing any specific implementation here.
# We need to define the contract between this new plugin type and Solr better.
For example:
## When is it created?
## When is it shutdown?
## How is it configured? How is the configuration changed?
## Is it per-collection or for the whole cluster?
## Can we have multiple such plugins?
## How are configuration changes propagated to different nodes? Is the plugin
re-initialized or re-created?
> Pluggable authorization module in Solr
> --------------------------------------
>
> Key: SOLR-7275
> URL: https://issues.apache.org/jira/browse/SOLR-7275
> Project: Solr
> Issue Type: Sub-task
> Reporter: Anshum Gupta
> Assignee: Anshum Gupta
> Attachments: SOLR-7275.patch
>
>
> Solr needs an interface that makes it easy for different authorization
> systems to be plugged into it. Here's what I plan on doing:
> Define an interface {{SolrAuthorizationPlugin}} with one single method
> {{isAuthorized}}. This would take in a {{SolrRequestContext}} object and
> return an {{SolrAuthorizationResponse}} object. The object as of now would
> only contain a single boolean value but in the future could contain more
> information e.g. ACL for document filtering etc.
> The reason why we need a context object is so that the plugin doesn't need to
> understand Solr's capabilities e.g. how to extract the name of the collection
> or other information from the incoming request as there are multiple ways to
> specify the target collection for a request. Similarly request type can be
> specified by {{qt}} or {{/handler_name}}.
> Flow:
> Request -> SolrDispatchFilter -> isAuthorized(context) -> Process/Return.
> {code}
> public interface SolrAuthorizationPlugin {
> public SolrAuthorizationResponse isAuthorized(SolrRequestContext context);
> }
> {code}
> {code}
> public class SolrRequestContext {
> UserInfo; // Will contain user context from the authentication layer.
> HTTPRequest request;
> Enum OperationType; // Correlated with user roles.
> String[] CollectionsAccessed;
> String[] FieldsAccessed;
> String Resource;
> }
> {code}
> {code}
> public class SolrAuthorizationResponse {
> boolean authorized;
> public boolean isAuthorized();
> }
> {code}
> User Roles:
> * Admin
> * Collection Level:
> * Query
> * Update
> * Admin
> Using this framework, an implementation could be written for specific
> security systems e.g. Apache Ranger or Sentry. It would keep all the security
> system specific code out of Solr.
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