Anshum Gupta created SOLR-7275:
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Summary: 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
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 AuthResponse isAuthorized();
}
{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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