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// Validate dropUser performed via transaction.
(function() {
'use strict';
function runTest(conn, testCB) {
const admin = conn.getDB('admin');
const test = conn.getDB('test');
admin.createUser({user: 'admin', pwd: 'pwd', roles: ['__system']});
admin.auth('admin', 'pwd');
// user1 -> role2 -> role1
// \___________.^
assert.commandWorked(test.runCommand({createRole: 'role1', roles: [], privileges: []}));
assert.commandWorked(test.runCommand({createRole: 'role2', roles: ['role1'], privileges: []}));
assert.commandWorked(
test.runCommand({createUser: 'user1', roles: ['role1', 'role2'], pwd: 'pwd'}));
const beforeDrop = assert.commandWorked(test.runCommand({usersInfo: 'user1'})).users[0].roles;
assert.eq(beforeDrop.length, 2);
assert.eq(beforeDrop.map((r) => r.role).sort(), ['role1', 'role2']);
testCB(test);
// Callback should end up dropping role1
// And we should have no references left to it.
const allUsers = assert.commandWorked(test.runCommand({usersInfo: 1})).users;
assert.eq(allUsers.length, 1);
assert.eq(allUsers[0]._id, 'test.user1');
assert.eq(allUsers[0].roles.map((r) => r.role), ['role2']);
const allRoles = assert.commandWorked(test.runCommand({rolesInfo: 1})).roles;
assert.eq(allRoles.length, 1);
assert.eq(allRoles[0]._id, 'test.role2');
assert.eq(allRoles[0].roles.length, 0);
admin.logout();
}
//// Standalone
// We don't have transactions in standalone mode.
// Behavior elides transaction machinery, but is still protected by
// local mutex on the UMC commands.
// Expect the second command to block.
{
const kFailpointDelay = 10 * 1000;
const mongod = MongoRunner.runMongod({auth: null});
assert.commandWorked(mongod.getDB('admin').runCommand({
configureFailPoint: 'umcTransaction',
mode: 'alwaysOn',
data: {commitDelayMS: NumberInt(kFailpointDelay)},
}));
runTest(mongod, function(test) {
// Pause and cause next op to block.
const start = Date.now();
const parallelShell = startParallelShell(
`
db.getSiblingDB('admin').auth('admin', 'pwd');
assert.commandWorked(db.getSiblingDB('test').runCommand({dropRole: 'role1'}));
`,
mongod.port);
// Other UMCs block.
assert.commandWorked(test.runCommand({updateRole: 'role2', privileges: []}));
parallelShell();
assert.gte(Date.now() - start, kFailpointDelay);
});
MongoRunner.stopMongod(mongod);
}
//// ReplicaSet
// Ensure that dropRoles generates a transaction by checking for applyOps.
{
const rst = new ReplSetTest({nodes: 3, keyFile: 'jstests/libs/key1'});
rst.startSet();
rst.initiate();
rst.awaitSecondaryNodes();
function relevantOp(op) {
return ((op.op === 'u') || (op.op === 'd')) &&
((op.ns === 'admin.system.users') || (op.ns === 'admin.system.roles'));
}
function probableTransaction(op) {
return (op.op === 'c') && (op.ns === 'admin.$cmd') && (op.o.applyOps !== undefined) &&
op.o.applyOps.some(relevantOp);
}
runTest(rst.getPrimary(), function(test) {
assert.commandWorked(test.runCommand({dropRole: 'role1'}));
const oplog = test.getSiblingDB('local').oplog.rs.find({}).toArray();
jsTest.log('Oplog: ' + tojson(oplog));
// Events were not executed directly on the collections.
const updatesAndDrops = oplog.filter(relevantOp);
assert.eq(updatesAndDrops.length,
0,
'Found expected actions on priv collections: ' + tojson(updatesAndDrops));
// They were executed by way of a transaction.
const txns = oplog.filter(probableTransaction);
assert.eq(
txns.length, 1, 'Found unexpected number of probable transactions: ' + tojson(txns));
const txnOps = txns[0].o.applyOps;
assert.eq(
txnOps.length, 3, 'Found unexpected number of ops in transaction: ' + tojson(txnOps));
// Op1: Remove 'role1' from user1
const msgUpdateUser = 'First op should be update admin.system.users' + tojson(txnOps);
assert.eq(txnOps[0].op, 'u', msgUpdateUser);
assert.eq(txnOps[0].ns, 'admin.system.users', msgUpdateUser);
assert.eq(txnOps[0].o2._id, 'test.user1', msgUpdateUser);
assert.eq(txnOps[0].o.diff.u.roles, [{role: 'role2', db: 'test'}], msgUpdateUser);
// Op2: Remove 'role1' from role2
const msgUpdateRole = 'Second op should be update admin.system.roles' + tojson(txnOps);
assert.eq(txnOps[1].op, 'u', msgUpdateRole);
assert.eq(txnOps[1].ns, 'admin.system.roles', msgUpdateRole);
assert.eq(txnOps[1].o2._id, 'test.role2', msgUpdateRole);
assert.eq(txnOps[1].o.diff.u.roles, [], msgUpdateRole);
// Op3: Remove 'role1' document
const msgDropRole = 'Third op should be drop from admin.system.roles' + tojson(txnOps);
assert.eq(txnOps[2].op, 'd', msgDropRole);
assert.eq(txnOps[2].ns, 'admin.system.roles', msgUpdateRole);
assert.eq(txnOps[2].o._id, 'test.role1', msgUpdateRole);
jsTest.log('Oplog applyOps: ' + tojson(txns));
});
rst.stopSet();
}
})();
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