mongodb/jstests/replsets/initial_sync_unsupported_auth_schema.js

// Test that initial sync aborts when it encounters auth data from unsupported
// auth schemas (see: SERVER-17671)

function testInitialSyncAbortsWithUnsupportedAuthSchema(schema) {
    'use strict';

    load("jstests/replsets/rslib.js");  // For reInitiateWithoutThrowingOnAbortedMember

    // Create a replica set with one data-bearing node and one arbiter to
    // ensure availability when the added node fasserts later in the test
    var rst = new ReplSetTest({nodes: {n0: {}, arbiter: {}}});
    rst.startSet();
    rst.initiate();

    // Simulate unsupported auth data by setting the auth schema version to an
    // invalid or outdated version
    var versionColl = rst.getPrimary().getDB('admin').system.version;
    var res = versionColl.insert(schema);
    assert.commandWorked(res);

    // Add another node to the replica set to allow an initial sync to occur
    var initSyncNode =
        rst.add({setParameter: 'numInitialSyncAttempts=1', rsConfig: {votes: 0, priority: 0}});
    var initSyncNodeAdminDB = initSyncNode.getDB("admin");

    clearRawMongoProgramOutput();
    reInitiateWithoutThrowingOnAbortedMember(rst);

    assert.soon(function() {
        try {
            initSyncNodeAdminDB.runCommand({ping: 1});
        } catch (e) {
            return true;
        }
        return false;
    }, "Node did not terminate due to unsupported auth schema during initial sync", 60 * 1000);

    rst.stop(initSyncNode, undefined, {allowedExitCode: MongoRunner.EXIT_ABRUPT});

    var msg;
    if (schema.hasOwnProperty('currentVersion')) {
        msg = new RegExp('During initial sync, found auth schema version ' + schema.currentVersion);
    } else {
        msg = /During initial sync, found malformed auth schema version/;
    }

    assert(rawMongoProgramOutput().match(msg),
           'Initial sync should have aborted due to an invalid or unsupported' +
               ' authSchema version: ' + tojson(schema));

    rst.stopSet();
}

function testInitialSyncAbortsWithExistingUserAndNoAuthSchema() {
    'use strict';

    // Create a replica set with one data-bearing node and one arbiter to
    // ensure availability when the added node fasserts later in the test
    var rst = new ReplSetTest({nodes: {n0: {}, arbiter: {}}});
    rst.startSet();
    rst.initiate();

    // Simulate unsupported auth data by inserting a user document without inserting
    // a corresponding auth schema
    var userColl = rst.getPrimary().getDB('admin').system.users;
    var res = userColl.insert({});
    assert.commandWorked(res);

    // Add another node to the replica set to allow an initial sync to occur
    var initSyncNode =
        rst.add({setParameter: 'numInitialSyncAttempts=1', rsConfig: {votes: 0, priority: 0}});
    var initSyncNodeAdminDB = initSyncNode.getDB("admin");

    clearRawMongoProgramOutput();
    reInitiateWithoutThrowingOnAbortedMember(rst);

    assert.soon(function() {
        try {
            initSyncNodeAdminDB.runCommand({ping: 1});
        } catch (e) {
            return true;
        }
        return false;
    }, "Node did not terminate due to unsupported auth schema during initial sync", 60 * 1000);

    rst.stop(initSyncNode, undefined, {allowedExitCode: MongoRunner.EXIT_ABRUPT});

    var msg = /During initial sync, found documents in admin\.system\.users/;

    assert(rawMongoProgramOutput().match(msg),
           'Initial sync should have aborted due to an existing user document and' +
               ' a missing auth schema');

    rst.stopSet();
}

testInitialSyncAbortsWithUnsupportedAuthSchema({_id: 'authSchema'});
testInitialSyncAbortsWithUnsupportedAuthSchema({_id: 'authSchema', currentVersion: 1});
testInitialSyncAbortsWithUnsupportedAuthSchema({_id: 'authSchema', currentVersion: 2});
testInitialSyncAbortsWithExistingUserAndNoAuthSchema();