// PasswordValid returns whether the given password
// is valid for the user.
func (u *User) PasswordValid(password string) bool {
// If the user is deactivated, no point in carrying on
if u.IsDeactivated() {
return false
}
// Since these are potentially set by a User, we intentionally use the
// slower pbkdf2 style hashing. Also, we don't expect to have thousands
// of Users trying to log in at the same time (which we *do* expect of
// Unit and Machine agents.)
if u.doc.PasswordSalt != "" {
return utils.UserPasswordHash(password, u.doc.PasswordSalt) == u.doc.PasswordHash
}
// In Juju 1.16 and older, we did not set a Salt for the user password,
// so check if the password hash matches using CompatSalt. if it
// does, then set the password again so that we get a proper salt
if utils.UserPasswordHash(password, utils.CompatSalt) == u.doc.PasswordHash {
// This will set a new Salt for the password. We ignore if it
// fails because we will try again at the next request
logger.Debugf("User %s logged in with CompatSalt resetting password for new salt",
u.Name())
err := u.SetPassword(password)
if err != nil {
logger.Errorf("Cannot set resalted password for user %q", u.Name())
}
return true
}
return false
}
func (s *UserSuite) TestPasswordValidUpdatesSalt(c *gc.C) {
u, err := s.State.AddUser("someuser", "password")
c.Assert(err, gc.IsNil)
compatHash := utils.UserPasswordHash("foo", utils.CompatSalt)
err = u.SetPasswordHash(compatHash, "")
c.Assert(err, gc.IsNil)
beforeSalt, beforeHash := state.GetUserPasswordSaltAndHash(u)
c.Assert(beforeSalt, gc.Equals, "")
c.Assert(beforeHash, gc.Equals, compatHash)
c.Assert(u.PasswordValid("bar"), jc.IsFalse)
// A bad password doesn't trigger a rewrite
afterBadSalt, afterBadHash := state.GetUserPasswordSaltAndHash(u)
c.Assert(afterBadSalt, gc.Equals, "")
c.Assert(afterBadHash, gc.Equals, compatHash)
// When we get a valid check, we then add a salt and rewrite the hash
c.Assert(u.PasswordValid("foo"), jc.IsTrue)
afterSalt, afterHash := state.GetUserPasswordSaltAndHash(u)
c.Assert(afterSalt, gc.Not(gc.Equals), "")
c.Assert(afterHash, gc.Not(gc.Equals), compatHash)
c.Assert(afterHash, gc.Equals, utils.UserPasswordHash("foo", afterSalt))
// running PasswordValid again doesn't trigger another rewrite
c.Assert(u.PasswordValid("foo"), jc.IsTrue)
lastSalt, lastHash := state.GetUserPasswordSaltAndHash(u)
c.Assert(lastSalt, gc.Equals, afterSalt)
c.Assert(lastHash, gc.Equals, afterHash)
}
func (s *UserSuite) TestSetPasswordHashWithSalt(c *gc.C) {
u, err := s.State.AddUser("someuser", "password")
c.Assert(err, gc.IsNil)
err = u.SetPasswordHash(utils.UserPasswordHash("foo", "salted"), "salted")
c.Assert(err, gc.IsNil)
c.Assert(u.PasswordValid("foo"), jc.IsTrue)
salt, hash := state.GetUserPasswordSaltAndHash(u)
c.Assert(salt, gc.Equals, "salted")
c.Assert(hash, gc.Not(gc.Equals), utils.UserPasswordHash("foo", utils.CompatSalt))
}
// resetAdminPasswordAndFetchDBNames logs into the database with a
// plausible password and returns all the database's db names. We need
// to try several passwords because we don't know what state the mongo
// server is in when Reset is called. If the test has set a custom
// password, we're out of luck, but if they are using
// DefaultStatePassword, we can succeed.
func resetAdminPasswordAndFetchDBNames(session *mgo.Session) ([]string, bool) {
// First try with no password
dbnames, err := session.DatabaseNames()
if err == nil {
return dbnames, true
}
if !isUnauthorized(err) {
panic(err)
}
// Then try the two most likely passwords in turn.
for _, password := range []string{
DefaultMongoPassword,
utils.UserPasswordHash(DefaultMongoPassword, utils.CompatSalt),
} {
admin := session.DB("admin")
if err := admin.Login("admin", password); err != nil {
logger.Infof("failed to log in with password %q", password)
continue
}
dbnames, err := session.DatabaseNames()
if err == nil {
if err := admin.RemoveUser("admin"); err != nil {
panic(err)
}
return dbnames, true
}
if !isUnauthorized(err) {
panic(err)
}
logger.Infof("unauthorized access when getting database names; password %q", password)
}
return nil, false
}
// AddUser adds a user to the state.
func (st *State) AddUser(name, password string) (*User, error) {
if !names.IsUser(name) {
return nil, fmt.Errorf("invalid user name %q", name)
}
salt, err := utils.RandomSalt()
if err != nil {
return nil, err
}
u := &User{
st: st,
doc: userDoc{
Name: name,
PasswordHash: utils.UserPasswordHash(password, salt),
PasswordSalt: salt,
},
}
ops := []txn.Op{{
C: st.users.Name,
Id: name,
Assert: txn.DocMissing,
Insert: &u.doc,
}}
err = st.runTransaction(ops)
if err == txn.ErrAborted {
err = fmt.Errorf("user already exists")
}
if err != nil {
return nil, err
}
return u, nil
}
// SetPassword sets the password associated with the user.
func (u *User) SetPassword(password string) error {
salt, err := utils.RandomSalt()
if err != nil {
return err
}
return u.SetPasswordHash(utils.UserPasswordHash(password, salt), salt)
}
func (s *UserSuite) TestAddUserSetsSalt(c *gc.C) {
u, err := s.State.AddUser("someuser", "a-password")
c.Assert(err, gc.IsNil)
salt, hash := state.GetUserPasswordSaltAndHash(u)
c.Check(hash, gc.Not(gc.Equals), "")
c.Check(salt, gc.Not(gc.Equals), "")
c.Check(utils.UserPasswordHash("a-password", salt), gc.Equals, hash)
c.Check(u.PasswordValid("a-password"), jc.IsTrue)
}
// NewConn returns a new Conn that uses the
// given environment. The environment must have already
// been bootstrapped.
func NewConn(environ environs.Environ) (*Conn, error) {
info, _, err := environ.StateInfo()
if err != nil {
return nil, err
}
password := environ.Config().AdminSecret()
if password == "" {
return nil, fmt.Errorf("cannot connect without admin-secret")
}
err = environs.CheckEnvironment(environ)
if err != nil {
return nil, err
}
info.Password = password
opts := state.DefaultDialOpts()
st, err := state.Open(info, opts, environs.NewStatePolicy())
if errors.IsUnauthorized(err) {
logger.Infof("authorization error while connecting to state server; retrying")
// We can't connect with the administrator password,;
// perhaps this was the first connection and the
// password has not been changed yet.
info.Password = utils.UserPasswordHash(password, utils.CompatSalt)
// We try for a while because we might succeed in
// connecting to mongo before the state has been
// initialized and the initial password set.
for a := redialStrategy.Start(); a.Next(); {
st, err = state.Open(info, opts, environs.NewStatePolicy())
if !errors.IsUnauthorized(err) {
break
}
}
if err != nil {
return nil, err
}
if err := st.SetAdminMongoPassword(password); err != nil {
return nil, err
}
} else if err != nil {
return nil, err
}
conn := &Conn{
Environ: environ,
State: st,
}
if err := conn.updateSecrets(); err != nil {
conn.Close()
return nil, fmt.Errorf("unable to push secrets: %v", err)
}
return conn, nil
}
func (s *UserSuite) TestSetPasswordHash(c *gc.C) {
u, err := s.State.AddUser("someuser", "password")
c.Assert(err, gc.IsNil)
err = u.SetPasswordHash(utils.UserPasswordHash("foo", utils.CompatSalt), utils.CompatSalt)
c.Assert(err, gc.IsNil)
c.Assert(u.PasswordValid("foo"), jc.IsTrue)
c.Assert(u.PasswordValid("bar"), jc.IsFalse)
// User passwords should *not* use the fast PasswordHash function
hash := utils.AgentPasswordHash("foo-12345678901234567890")
c.Assert(err, gc.IsNil)
err = u.SetPasswordHash(hash, "")
c.Assert(err, gc.IsNil)
c.Assert(u.PasswordValid("foo-12345678901234567890"), jc.IsFalse)
}
// PasswordValid returns whether the given password is valid
// for the given unit.
func (u *Unit) PasswordValid(password string) bool {
agentHash := utils.AgentPasswordHash(password)
if agentHash == u.doc.PasswordHash {
return true
}
// In Juju 1.16 and older we used the slower password hash for unit
// agents. So check to see if the supplied password matches the old
// path, and if so, update it to the new mechanism.
// We ignore any error in setting the password hash, as we'll just try
// again next time
if utils.UserPasswordHash(password, utils.CompatSalt) == u.doc.PasswordHash {
logger.Debugf("%s logged in with old password hash, changing to AgentPasswordHash",
u.Tag())
u.setPasswordHash(agentHash)
return true
}
return false
}
func (s *CloudInitSuite) TestFinishBootstrapConfig(c *gc.C) {
attrs := dummySampleConfig().Merge(testing.Attrs{
"authorized-keys": "we-are-the-keys",
"admin-secret": "lisboan-pork",
"agent-version": "1.2.3",
"state-server": false,
})
cfg, err := config.New(config.NoDefaults, attrs)
c.Assert(err, gc.IsNil)
oldAttrs := cfg.AllAttrs()
mcfg := &cloudinit.MachineConfig{
Bootstrap: true,
}
cons := constraints.MustParse("mem=1T cpu-power=999999999")
err = environs.FinishMachineConfig(mcfg, cfg, cons)
c.Assert(err, gc.IsNil)
c.Check(mcfg.AuthorizedKeys, gc.Equals, "we-are-the-keys")
c.Check(mcfg.DisableSSLHostnameVerification, jc.IsFalse)
password := utils.UserPasswordHash("lisboan-pork", utils.CompatSalt)
c.Check(mcfg.APIInfo, gc.DeepEquals, &api.Info{
Password: password, CACert: testing.CACert,
})
c.Check(mcfg.StateInfo, gc.DeepEquals, &state.Info{
Password: password, CACert: testing.CACert,
})
c.Check(mcfg.StateServingInfo.StatePort, gc.Equals, cfg.StatePort())
c.Check(mcfg.StateServingInfo.APIPort, gc.Equals, cfg.APIPort())
c.Check(mcfg.Constraints, gc.DeepEquals, cons)
oldAttrs["ca-private-key"] = ""
oldAttrs["admin-secret"] = ""
c.Check(mcfg.Config.AllAttrs(), gc.DeepEquals, oldAttrs)
srvCertPEM := mcfg.StateServingInfo.Cert
srvKeyPEM := mcfg.StateServingInfo.PrivateKey
_, _, err = cert.ParseCertAndKey(srvCertPEM, srvKeyPEM)
c.Check(err, gc.IsNil)
err = cert.Verify(srvCertPEM, testing.CACert, time.Now())
c.Assert(err, gc.IsNil)
err = cert.Verify(srvCertPEM, testing.CACert, time.Now().AddDate(9, 0, 0))
c.Assert(err, gc.IsNil)
err = cert.Verify(srvCertPEM, testing.CACert, time.Now().AddDate(10, 0, 1))
c.Assert(err, gc.NotNil)
}
func testPasswordHash() string {
return utils.UserPasswordHash(testPassword, utils.CompatSalt)
}
func (e *environ) Bootstrap(ctx environs.BootstrapContext, args environs.BootstrapParams) error {
selectedTools, err := common.EnsureBootstrapTools(ctx, e, config.PreferredSeries(e.Config()), args.Constraints.Arch)
if err != nil {
return err
}
defer delay()
if err := e.checkBroken("Bootstrap"); err != nil {
return err
}
password := e.Config().AdminSecret()
if password == "" {
return fmt.Errorf("admin-secret is required for bootstrap")
}
if _, ok := e.Config().CACert(); !ok {
return fmt.Errorf("no CA certificate in environment configuration")
}
logger.Infof("would pick tools from %s", selectedTools)
cfg, err := environs.BootstrapConfig(e.Config())
if err != nil {
return fmt.Errorf("cannot make bootstrap config: %v", err)
}
estate, err := e.state()
if err != nil {
return err
}
estate.mu.Lock()
defer estate.mu.Unlock()
if estate.bootstrapped {
return fmt.Errorf("environment is already bootstrapped")
}
// Write the bootstrap file just like a normal provider. However
// we need to release the mutex for the save state to work, so regain
// it after the call.
estate.mu.Unlock()
if err := bootstrap.SaveState(e.Storage(), &bootstrap.BootstrapState{StateInstances: []instance.Id{"localhost"}}); err != nil {
logger.Errorf("failed to save state instances: %v", err)
estate.mu.Lock() // otherwise defered unlock will fail
return err
}
estate.mu.Lock() // back at it
if e.ecfg().stateServer() {
// TODO(rog) factor out relevant code from cmd/jujud/bootstrap.go
// so that we can call it here.
info := stateInfo()
st, err := state.Initialize(info, cfg, state.DefaultDialOpts(), estate.statePolicy)
if err != nil {
panic(err)
}
if err := st.SetEnvironConstraints(args.Constraints); err != nil {
panic(err)
}
if err := st.SetAdminMongoPassword(utils.UserPasswordHash(password, utils.CompatSalt)); err != nil {
panic(err)
}
_, err = st.AddUser("admin", password)
if err != nil {
panic(err)
}
estate.apiServer, err = apiserver.NewServer(st, "localhost:0", []byte(testing.ServerCert), []byte(testing.ServerKey), DataDir, LogDir)
if err != nil {
panic(err)
}
estate.apiState = st
}
estate.bootstrapped = true
estate.ops <- OpBootstrap{Context: ctx, Env: e.name, Args: args}
return nil
}