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Switch Kerberos authentication provider to a dedicated _kerberos grant. Introduce Tokens for common access/refresh token tasks. #39366

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merged 5 commits into from
Jul 1, 2019
Merged

Switch Kerberos authentication provider to a dedicated _kerberos grant. Introduce Tokens for common access/refresh token tasks. #39366

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5fdd55b
Switch Kerberos authentication provider to a dedicated `_kerberos` gr…
azasypkin Jun 20, 2019
9353068
Merge branch 'master' into issue-xxx-token-manager
azasypkin Jun 21, 2019
bec52bc
Merge branch 'master' into issue-xxx-token-manager
azasypkin Jun 24, 2019
977c132
Review#1: improve/fix code comments, properly log the case when token…
azasypkin Jun 24, 2019
635a86d
Merge branch 'master' of github.com:elastic/kibana into issue-xxx-tok…
kobelb Jul 1, 2019
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8 changes: 6 additions & 2 deletions x-pack/legacy/plugins/security/server/lib/authentication/authenticator.ts
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Expand Up @@ -22,6 +22,7 @@ import { DeauthenticationResult } from './deauthentication_result';
import { Session } from './session';
import { LoginAttempt } from './login_attempt';
import { AuthenticationProviderSpecificOptions } from './providers/base';
import { Tokens } from './tokens';

interface ProviderSession {
provider: string;
Expand Down Expand Up @@ -56,11 +57,14 @@ function assertRequest(request: Legacy.Request) {
*/
function getProviderOptions(server: Legacy.Server) {
const config = server.config();
const client = getClient(server);
const log = server.log.bind(server);

return {
client: getClient(server),
log: server.log.bind(server),
client,
log,
basePath: config.get<string>('server.basePath'),
tokens: new Tokens({ client, log }),
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note: basic is the only provider that doesn't use tokens and it's pretty cheap to instantiate it even if basic provider is used, so I decided to have it as provider option instead of re-creating it for every provider that uses tokens.

};
}

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13 changes: 9 additions & 4 deletions x-pack/legacy/plugins/security/server/lib/authentication/providers/base.mock.ts
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Expand Up @@ -4,16 +4,21 @@
* you may not use this file except in compliance with the Elastic License.
*/

import { stub } from 'sinon';
import { stub, createStubInstance } from 'sinon';
import { Tokens } from '../tokens';
import { AuthenticationProviderOptions } from './base';

export function mockAuthenticationProviderOptions(
providerOptions: Partial<AuthenticationProviderOptions> = {}
providerOptions: Partial<Pick<AuthenticationProviderOptions, 'basePath'>> = {}
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note: we don't need anything except for basePath as an argument here, but I decided to keep "args as an object" pattern here for now, to have less updates and account for the future options we may want to tweak in tests.

) {
const client = { callWithRequest: stub(), callWithInternalUser: stub() };
const log = stub();

return {
client: { callWithRequest: stub(), callWithInternalUser: stub() },
log: stub(),
client,
log,
basePath: '/base-path',
tokens: createStubInstance(Tokens),
...providerOptions,
};
}
2 changes: 2 additions & 0 deletions x-pack/legacy/plugins/security/server/lib/authentication/providers/base.ts
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Expand Up @@ -8,6 +8,7 @@ import { Legacy } from 'kibana';
import { AuthenticationResult } from '../authentication_result';
import { DeauthenticationResult } from '../deauthentication_result';
import { LoginAttempt } from '../login_attempt';
import { Tokens } from '../tokens';

/**
* Describes a request complemented with `loginAttempt` method.
Expand All @@ -23,6 +24,7 @@ export interface AuthenticationProviderOptions {
basePath: string;
client: Legacy.Plugins.elasticsearch.Cluster;
log: (tags: string[], message: string) => void;
tokens: PublicMethodsOf<Tokens>;
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note: relying on PublicMethodsOf makes it super simple to mock tokens in TS tests. I hate that tests dictate how we should write code, but here it's more or less logically acceptable.

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This feels similar to what you have to do in Java/C# when you extract an interface that only has the public properties for the sake of testing. What you have here seems less intrusive, and makes me wonder if it's a pattern that we should embrace more widely?

I have a bad habit of pretending that TS is more similar to the type systems in Java/C# than it really is, so it's great learning techniques like these from you.

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What you have here seems less intrusive, and makes me wonder if it's a pattern that we should embrace more widely?

In a NP world we won't have too many of these cases (contracts are usually plain objects with public only stuff on them, that's is trivial to mock and work with without additional TS voodoo), hopefully, but in places where we still want something like this I believe we embrace this approach.

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Yes, the core has the same problems. We pass around ES6 classes and later in tests have type errors passing POJO with the same interface. We haven't decided on the official solution in the core #33396
but in some places already started using a separate interface for the contracts https://github.com/skaapgif/kibana/blob/a52d038cbaf605c29a94a3872d4eb70fb60c3fd2/src/legacy/server/saved_objects/service/saved_objects_client.ts#L132
Probably declaring TokenContract is more self-describing than PublicMethodsOf<Tokens>

}

/**
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2 changes: 1 addition & 1 deletion x-pack/legacy/plugins/security/server/lib/authentication/providers/basic.test.ts
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Expand Up @@ -24,7 +24,7 @@ describe('BasicAuthenticationProvider', () => {
let callWithRequest: sinon.SinonStub;
beforeEach(() => {
const providerOptions = mockAuthenticationProviderOptions();
callWithRequest = providerOptions.client.callWithRequest as sinon.SinonStub;
callWithRequest = providerOptions.client.callWithRequest;
provider = new BasicAuthenticationProvider(providerOptions);
});

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