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account.go
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account.go
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package account
import (
"errors"
"fmt"
"regexp"
"sort"
"time"
"github.com/google/uuid"
log "github.com/sirupsen/logrus"
"golang.org/x/net/context"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"k8s.io/kubectl/pkg/util/slice"
"github.com/argoproj/argo-cd/v2/common"
"github.com/argoproj/argo-cd/v2/pkg/apiclient/account"
"github.com/argoproj/argo-cd/v2/server/rbacpolicy"
"github.com/argoproj/argo-cd/v2/util/password"
"github.com/argoproj/argo-cd/v2/util/rbac"
"github.com/argoproj/argo-cd/v2/util/session"
"github.com/argoproj/argo-cd/v2/util/settings"
)
// Server provides a Session service
type Server struct {
sessionMgr *session.SessionManager
settingsMgr *settings.SettingsManager
enf *rbac.Enforcer
}
// NewServer returns a new instance of the Session service
func NewServer(sessionMgr *session.SessionManager, settingsMgr *settings.SettingsManager, enf *rbac.Enforcer) *Server {
return &Server{sessionMgr, settingsMgr, enf}
}
// UpdatePassword updates the password of the currently authenticated account or the account specified in the request.
func (s *Server) UpdatePassword(ctx context.Context, q *account.UpdatePasswordRequest) (*account.UpdatePasswordResponse, error) {
issuer := session.Iss(ctx)
username := session.Sub(ctx)
updatedUsername := username
if q.Name != "" {
updatedUsername = q.Name
}
// check for permission is user is trying to change someone else's password
// assuming user is trying to update someone else if username is different or issuer is not Argo CD
if updatedUsername != username || issuer != session.SessionManagerClaimsIssuer {
if err := s.enf.EnforceErr(ctx.Value("claims"), rbacpolicy.ResourceAccounts, rbacpolicy.ActionUpdate, q.Name); err != nil {
return nil, err
}
}
if issuer == session.SessionManagerClaimsIssuer {
// local user is changing own password or another user password
// user is changing own password.
// ensure token belongs to a user, not project
if q.Name == "" && rbacpolicy.IsProjectSubject(username) {
return nil, status.Errorf(codes.InvalidArgument, "password can only be changed for local users, not user %q", username)
}
err := s.sessionMgr.VerifyUsernamePassword(username, q.CurrentPassword)
if err != nil {
return nil, status.Errorf(codes.InvalidArgument, "current password does not match")
}
} else {
// SSO user is changing or local user password
iat, err := session.Iat(ctx)
if err != nil {
return nil, err
}
if time.Since(iat) > common.ChangePasswordSSOTokenMaxAge {
return nil, errors.New("SSO token is too old. Please use 'argocd relogin' to get a new token.")
}
}
//Need to validate password complexity with regular expression
passwordPattern, err := s.settingsMgr.GetPasswordPattern()
if err != nil {
return nil, err
}
validPasswordRegexp, err := regexp.Compile(passwordPattern)
if err != nil {
return nil, err
}
if !validPasswordRegexp.Match([]byte(q.NewPassword)) {
err := fmt.Errorf("New password does not match the following expression: %s.", passwordPattern)
return nil, err
}
hashedPassword, err := password.HashPassword(q.NewPassword)
if err != nil {
return nil, err
}
err = s.settingsMgr.UpdateAccount(updatedUsername, func(acc *settings.Account) error {
acc.PasswordHash = hashedPassword
now := time.Now().UTC()
acc.PasswordMtime = &now
return nil
})
if err != nil {
return nil, err
}
if updatedUsername == username {
log.Infof("user '%s' updated password", username)
} else {
log.Infof("user '%s' updated password of user '%s'", username, updatedUsername)
}
return &account.UpdatePasswordResponse{}, nil
}
// CanI checks if the current account has permission to perform an action
func (s *Server) CanI(ctx context.Context, r *account.CanIRequest) (*account.CanIResponse, error) {
if !slice.ContainsString(rbacpolicy.Actions, r.Action, nil) {
return nil, status.Errorf(codes.InvalidArgument, "%v does not contain %s", rbacpolicy.Actions, r.Action)
}
if !slice.ContainsString(rbacpolicy.Resources, r.Resource, nil) {
return nil, status.Errorf(codes.InvalidArgument, "%v does not contain %s", rbacpolicy.Resources, r.Resource)
}
ok := s.enf.Enforce(ctx.Value("claims"), r.Resource, r.Action, r.Subresource)
if ok {
return &account.CanIResponse{Value: "yes"}, nil
} else {
return &account.CanIResponse{Value: "no"}, nil
}
}
func toApiAccount(name string, a settings.Account) *account.Account {
var capabilities []string
for _, c := range a.Capabilities {
capabilities = append(capabilities, string(c))
}
var tokens []*account.Token
for _, t := range a.Tokens {
tokens = append(tokens, &account.Token{Id: t.ID, ExpiresAt: t.ExpiresAt, IssuedAt: t.IssuedAt})
}
sort.Slice(tokens, func(i, j int) bool {
return tokens[i].IssuedAt > tokens[j].IssuedAt
})
return &account.Account{
Name: name,
Enabled: a.Enabled,
Capabilities: capabilities,
Tokens: tokens,
}
}
func (s *Server) ensureHasAccountPermission(ctx context.Context, action string, account string) error {
// account has always has access to itself
if session.Sub(ctx) == account && session.Iss(ctx) == session.SessionManagerClaimsIssuer {
return nil
}
if err := s.enf.EnforceErr(ctx.Value("claims"), rbacpolicy.ResourceAccounts, action, account); err != nil {
return err
}
return nil
}
// ListAccounts returns the list of accounts
func (s *Server) ListAccounts(ctx context.Context, r *account.ListAccountRequest) (*account.AccountsList, error) {
resp := account.AccountsList{}
accounts, err := s.settingsMgr.GetAccounts()
if err != nil {
return nil, err
}
for name, a := range accounts {
if err := s.ensureHasAccountPermission(ctx, rbacpolicy.ActionGet, name); err == nil {
resp.Items = append(resp.Items, toApiAccount(name, a))
}
}
sort.Slice(resp.Items, func(i, j int) bool {
return resp.Items[i].Name < resp.Items[j].Name
})
return &resp, nil
}
// GetAccount returns an account
func (s *Server) GetAccount(ctx context.Context, r *account.GetAccountRequest) (*account.Account, error) {
if err := s.ensureHasAccountPermission(ctx, rbacpolicy.ActionGet, r.Name); err != nil {
return nil, err
}
a, err := s.settingsMgr.GetAccount(r.Name)
if err != nil {
return nil, err
}
return toApiAccount(r.Name, *a), nil
}
// CreateToken creates a token
func (s *Server) CreateToken(ctx context.Context, r *account.CreateTokenRequest) (*account.CreateTokenResponse, error) {
if err := s.ensureHasAccountPermission(ctx, rbacpolicy.ActionUpdate, r.Name); err != nil {
return nil, err
}
id := r.Id
if id == "" {
uniqueId, err := uuid.NewRandom()
if err != nil {
return nil, err
}
id = uniqueId.String()
}
var tokenString string
err := s.settingsMgr.UpdateAccount(r.Name, func(account *settings.Account) error {
if account.TokenIndex(id) > -1 {
return fmt.Errorf("account already has token with id '%s'", id)
}
if !account.HasCapability(settings.AccountCapabilityApiKey) {
return fmt.Errorf("account '%s' does not have %s capability", r.Name, settings.AccountCapabilityApiKey)
}
now := time.Now()
var err error
tokenString, err = s.sessionMgr.Create(fmt.Sprintf("%s:%s", r.Name, settings.AccountCapabilityApiKey), r.ExpiresIn, id)
if err != nil {
return err
}
var expiresAt int64
if r.ExpiresIn > 0 {
expiresAt = now.Add(time.Duration(r.ExpiresIn) * time.Second).Unix()
}
account.Tokens = append(account.Tokens, settings.Token{
ID: id,
IssuedAt: now.Unix(),
ExpiresAt: expiresAt,
})
return nil
})
if err != nil {
return nil, err
}
return &account.CreateTokenResponse{Token: tokenString}, nil
}
// DeleteToken deletes a token
func (s *Server) DeleteToken(ctx context.Context, r *account.DeleteTokenRequest) (*account.EmptyResponse, error) {
if err := s.ensureHasAccountPermission(ctx, rbacpolicy.ActionUpdate, r.Name); err != nil {
return nil, err
}
err := s.settingsMgr.UpdateAccount(r.Name, func(account *settings.Account) error {
if index := account.TokenIndex(r.Id); index > -1 {
account.Tokens = append(account.Tokens[:index], account.Tokens[index+1:]...)
return nil
}
return status.Errorf(codes.NotFound, "token with id '%s' does not exist", r.Id)
})
if err != nil {
return nil, err
}
return &account.EmptyResponse{}, nil
}