/**
 * This test does a full rollover of the X509 auth for cluster membership. After the rollover,
 * the cluster will have a new CA and the dn components used to determine cluster membership
 * will have changed;
 *
 * @tags: [requires_persistence, requires_replication]
 */

(function() {
'use strict';

const rst = new ReplSetTest({
    nodes: 3,
    waitForKeys: false,
    nodeOptions: {
        sslMode: "preferSSL",
        clusterAuthMode: "x509",
        sslPEMKeyFile: "jstests/libs/server.pem",
        sslCAFile: "jstests/libs/ca.pem",
        sslAllowInvalidHostnames: ""
    }
});
rst.startSet();

rst.initiateWithAnyNodeAsPrimary(
    Object.extend(rst.getReplSetConfig(), {writeConcernMajorityJournalDefault: true}));

// Create a user to login as when auth is enabled later
rst.getPrimary().getDB('admin').createUser({user: 'root', pwd: 'root', roles: ['root']}, {w: 3});
rst.nodes.forEach((node) => {
    assert(node.getDB("admin").auth("root", "root"));
});

// Future connections should authenticate immediately on connecting so that replSet actions succeed.
const originalAwaitConnection = MongoRunner.awaitConnection;
MongoRunner.awaitConnection = function(args) {
    const conn = originalAwaitConnection(args);
    assert(conn.getDB('admin').auth('root', 'root'));
    return conn;
};

// All the certificates' DNs share this base
const dnBase = "C=US, ST=New York, L=New York,";
// This is the DN of the rollover certificate.
const rolloverDN = dnBase + " O=MongoDB Inc. (Rollover), OU=Kernel (Rollover), CN=server";
// This is the DN of the original certificate
const originalDN = dnBase + " O=MongoDB, OU=Kernel, CN=server";

// This will rollover the cluster to a new config in a rolling fashion. It will return when
// there is a primary and we are able to write to it.
const rolloverConfig = function(newConfig) {
    const restart = function(node) {
        const nodeId = rst.getNodeId(node);
        rst.stop(nodeId);
        const configId = "n" + nodeId;
        rst.nodeOptions[configId] = Object.merge(rst.nodeOptions[configId], newConfig, true);
        const newNode = rst.start(nodeId, {}, true, true);
        rst.awaitSecondaryNodes();
    };

    rst.nodes.forEach(function(node) {
        restart(node);
    });

    assert.soon(() => {
        let primary = rst.getPrimary();
        assert.commandWorked(primary.getDB("admin").runCommand({hello: 1}));
        assert.commandWorked(primary.getDB('test').a.insert({a: 1, str: 'TESTTESTTEST'}));

        // Start a shell that connects to the server with the current CA/cert configuration
        // and ensure that it's able to connect and authenticate with x509.
        const shellArgs = [
            'mongo',
            primary.name,
            '--eval',
            ';',
            '--ssl',
            '--sslAllowInvalidHostnames',
            '--sslCAFile',
            newConfig['sslCAFile'],
            '--sslPEMKeyFile',
            newConfig['sslPEMKeyFile'],
            '--authenticationDatabase=$external',
            '--authenticationMechanism=MONGODB-X509'
        ];
        assert.eq(_runMongoProgram.apply(null, shellArgs), 0);

        return true;
    });
};

jsTestLog("Rolling over CA certificate to combined old and new CA's");
rolloverConfig({
    sslPEMKeyFile: "jstests/libs/server.pem",
    sslCAFile: "jstests/libs/rollover_ca_merged.pem",
    setParameter: {
        tlsX509ClusterAuthDNOverride: rolloverDN,
    }
});

jsTestLog("Rolling over to new certificate with new cluster DN and new CA");
rolloverConfig({
    sslPEMKeyFile: "jstests/libs/rollover_server.pem",
    sslCAFile: "jstests/libs/rollover_ca_merged.pem",
    setParameter: {
        tlsX509ClusterAuthDNOverride: originalDN,
    }
});

jsTestLog("Rolling over to new CA only");
rolloverConfig({
    sslPEMKeyFile: "jstests/libs/rollover_server.pem",
    sslCAFile: "jstests/libs/rollover_ca.pem",
});

rst.stopSet();
})();