2015-08-18 05:57:27 +05:30
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package server
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import (
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"errors"
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"fmt"
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"html/template"
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"net/http"
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"net/url"
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"path"
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"sort"
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"time"
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"github.com/coreos/go-oidc/jose"
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"github.com/coreos/go-oidc/key"
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"github.com/coreos/go-oidc/oauth2"
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"github.com/coreos/go-oidc/oidc"
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"github.com/coreos/pkg/health"
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"github.com/jonboulle/clockwork"
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"github.com/coreos/dex/client"
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"github.com/coreos/dex/connector"
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"github.com/coreos/dex/pkg/log"
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"github.com/coreos/dex/refresh"
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"github.com/coreos/dex/session"
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"github.com/coreos/dex/user"
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usersapi "github.com/coreos/dex/user/api"
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useremail "github.com/coreos/dex/user/email"
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2015-12-08 04:59:58 +05:30
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"github.com/coreos/dex/user/manager"
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2015-08-18 05:57:27 +05:30
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)
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const (
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LoginPageTemplateName = "login.html"
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RegisterTemplateName = "register.html"
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VerifyEmailTemplateName = "verify-email.html"
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SendResetPasswordEmailTemplateName = "send-reset-password.html"
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ResetPasswordTemplateName = "reset-password.html"
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APIVersion = "v1"
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)
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type OIDCServer interface {
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ClientMetadata(string) (*oidc.ClientMetadata, error)
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2015-08-29 04:33:51 +05:30
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NewSession(connectorID, clientID, clientState string, redirectURL url.URL, nonce string, register bool, scope []string) (string, error)
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2015-08-18 05:57:27 +05:30
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Login(oidc.Identity, string) (string, error)
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// CodeToken exchanges a code for an ID token and a refresh token string on success.
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CodeToken(creds oidc.ClientCredentials, sessionKey string) (*jose.JWT, string, error)
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ClientCredsToken(creds oidc.ClientCredentials) (*jose.JWT, error)
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// RefreshToken takes a previously generated refresh token and returns a new ID token
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// if the token is valid.
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RefreshToken(creds oidc.ClientCredentials, token string) (*jose.JWT, error)
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KillSession(string) error
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}
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type JWTVerifierFactory func(clientID string) oidc.JWTVerifier
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type Server struct {
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IssuerURL url.URL
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KeyManager key.PrivateKeyManager
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KeySetRepo key.PrivateKeySetRepo
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SessionManager *session.SessionManager
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ClientIdentityRepo client.ClientIdentityRepo
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ConnectorConfigRepo connector.ConnectorConfigRepo
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Templates *template.Template
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LoginTemplate *template.Template
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RegisterTemplate *template.Template
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VerifyEmailTemplate *template.Template
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SendResetPasswordEmailTemplate *template.Template
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ResetPasswordTemplate *template.Template
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HealthChecks []health.Checkable
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Connectors []connector.Connector
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UserRepo user.UserRepo
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2015-12-08 04:59:58 +05:30
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UserManager *manager.UserManager
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2015-08-18 05:57:27 +05:30
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PasswordInfoRepo user.PasswordInfoRepo
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RefreshTokenRepo refresh.RefreshTokenRepo
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UserEmailer *useremail.UserEmailer
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2015-10-01 05:05:58 +05:30
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EnableRegistration bool
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2015-08-18 05:57:27 +05:30
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localConnectorID string
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}
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func (s *Server) Run() chan struct{} {
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stop := make(chan struct{})
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chans := []chan struct{}{
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key.NewKeySetSyncer(s.KeySetRepo, s.KeyManager).Run(),
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}
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for _, idpc := range s.Connectors {
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chans = append(chans, idpc.Sync())
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}
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go func() {
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<-stop
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for _, ch := range chans {
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close(ch)
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}
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}()
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return stop
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}
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func (s *Server) KillSession(sessionKey string) error {
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sessionID, err := s.SessionManager.ExchangeKey(sessionKey)
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if err != nil {
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return err
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}
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_, err = s.SessionManager.Kill(sessionID)
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return err
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}
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func (s *Server) ProviderConfig() oidc.ProviderConfig {
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iss := s.IssuerURL.String()
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cfg := oidc.ProviderConfig{
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Issuer: iss,
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AuthEndpoint: iss + httpPathAuth,
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TokenEndpoint: iss + httpPathToken,
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KeysEndpoint: iss + httpPathKeys,
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GrantTypesSupported: []string{oauth2.GrantTypeAuthCode, oauth2.GrantTypeClientCreds},
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ResponseTypesSupported: []string{"code"},
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SubjectTypesSupported: []string{"public"},
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IDTokenAlgValuesSupported: []string{"RS256"},
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TokenEndpointAuthMethodsSupported: []string{"client_secret_basic"},
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}
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return cfg
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}
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func (s *Server) absURL(paths ...string) url.URL {
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url := s.IssuerURL
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paths = append([]string{url.Path}, paths...)
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url.Path = path.Join(paths...)
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return url
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}
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func (s *Server) AddConnector(cfg connector.ConnectorConfig) error {
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connectorID := cfg.ConnectorID()
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ns := s.IssuerURL
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ns.Path = path.Join(ns.Path, httpPathAuth, connectorID)
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idpc, err := cfg.Connector(ns, s.Login, s.Templates)
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if err != nil {
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return err
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}
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s.Connectors = append(s.Connectors, idpc)
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sortable := sortableIDPCs(s.Connectors)
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sort.Sort(sortable)
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// We handle the LocalConnector specially because it needs access to the
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// UserRepo and the PasswordInfoRepo; if it turns out that other connectors
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// need access to these resources we'll figure out how to provide it in a
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// cleaner manner.
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localConn, ok := idpc.(*connector.LocalConnector)
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if ok {
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s.localConnectorID = connectorID
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if s.UserRepo == nil {
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return errors.New("UserRepo cannot be nil")
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}
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if s.PasswordInfoRepo == nil {
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return errors.New("PasswordInfoRepo cannot be nil")
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}
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localConn.SetLocalIdentityProvider(&connector.LocalIdentityProvider{
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UserRepo: s.UserRepo,
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PasswordInfoRepo: s.PasswordInfoRepo,
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})
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localCfg, ok := cfg.(*connector.LocalConnectorConfig)
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if !ok {
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return errors.New("config for LocalConnector not a LocalConnectorConfig?")
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}
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if len(localCfg.PasswordInfos) > 0 {
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err := user.LoadPasswordInfos(s.PasswordInfoRepo,
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localCfg.PasswordInfos)
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if err != nil {
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return err
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}
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}
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}
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log.Infof("Loaded IdP connector: id=%s type=%s", connectorID, cfg.ConnectorType())
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return nil
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}
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func (s *Server) HTTPHandler() http.Handler {
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checks := make([]health.Checkable, len(s.HealthChecks))
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copy(checks, s.HealthChecks)
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for _, idpc := range s.Connectors {
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idpc := idpc
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checks = append(checks, idpc)
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}
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clock := clockwork.NewRealClock()
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mux := http.NewServeMux()
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mux.HandleFunc(httpPathDiscovery, handleDiscoveryFunc(s.ProviderConfig()))
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2015-10-01 05:05:58 +05:30
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mux.HandleFunc(httpPathAuth, handleAuthFunc(s, s.Connectors, s.LoginTemplate, s.EnableRegistration))
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2015-08-18 05:57:27 +05:30
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mux.HandleFunc(httpPathToken, handleTokenFunc(s))
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mux.HandleFunc(httpPathKeys, handleKeysFunc(s.KeyManager, clock))
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mux.Handle(httpPathHealth, makeHealthHandler(checks))
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2015-10-01 05:05:58 +05:30
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if s.EnableRegistration {
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2015-12-24 00:18:20 +05:30
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mux.HandleFunc(httpPathRegister, handleRegisterFunc(s, s.RegisterTemplate))
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2015-10-01 05:05:58 +05:30
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}
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2015-08-18 05:57:27 +05:30
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mux.HandleFunc(httpPathEmailVerify, handleEmailVerifyFunc(s.VerifyEmailTemplate,
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s.IssuerURL, s.KeyManager.PublicKeys, s.UserManager))
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mux.Handle(httpPathVerifyEmailResend, s.NewClientTokenAuthHandler(handleVerifyEmailResendFunc(s.IssuerURL,
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s.KeyManager.PublicKeys,
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s.UserEmailer,
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s.UserRepo,
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s.ClientIdentityRepo)))
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mux.Handle(httpPathSendResetPassword, &SendResetPasswordEmailHandler{
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tpl: s.SendResetPasswordEmailTemplate,
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emailer: s.UserEmailer,
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sm: s.SessionManager,
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cr: s.ClientIdentityRepo,
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})
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mux.Handle(httpPathResetPassword, &ResetPasswordHandler{
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tpl: s.ResetPasswordTemplate,
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issuerURL: s.IssuerURL,
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um: s.UserManager,
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keysFunc: s.KeyManager.PublicKeys,
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})
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2015-11-10 04:05:11 +05:30
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mux.Handle(httpPathAcceptInvitation, &InvitationHandler{
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passwordResetURL: s.absURL(httpPathResetPassword),
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issuerURL: s.IssuerURL,
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um: s.UserManager,
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keysFunc: s.KeyManager.PublicKeys,
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signerFunc: s.KeyManager.Signer,
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redirectValidityWindow: s.SessionManager.ValidityWindow,
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})
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2015-08-18 05:57:27 +05:30
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mux.HandleFunc(httpPathDebugVars, health.ExpvarHandler)
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pcfg := s.ProviderConfig()
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for _, idpc := range s.Connectors {
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errorURL, err := url.Parse(fmt.Sprintf("%s?connector_id=%s", pcfg.AuthEndpoint, idpc.ID()))
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if err != nil {
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log.Fatal(err)
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}
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idpc.Register(mux, *errorURL)
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}
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apiBasePath := path.Join(httpPathAPI, APIVersion)
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registerDiscoveryResource(apiBasePath, mux)
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clientPath, clientHandler := registerClientResource(apiBasePath, s.ClientIdentityRepo)
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mux.Handle(path.Join(apiBasePath, clientPath), s.NewClientTokenAuthHandler(clientHandler))
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usersAPI := usersapi.NewUsersAPI(s.UserManager, s.ClientIdentityRepo, s.UserEmailer, s.localConnectorID)
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2015-09-29 02:21:48 +05:30
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handler := NewUserMgmtServer(usersAPI, s.JWTVerifierFactory(), s.UserManager, s.ClientIdentityRepo).HTTPHandler()
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path := path.Join(apiBasePath, UsersSubTree)
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mux.Handle(path, handler)
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mux.Handle(path+"/", handler)
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2015-08-18 05:57:27 +05:30
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return http.Handler(mux)
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}
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// NewClientTokenAuthHandler returns the given handler wrapped in middleware which requires a Client Bearer token.
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func (s *Server) NewClientTokenAuthHandler(handler http.Handler) http.Handler {
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return &clientTokenMiddleware{
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issuerURL: s.IssuerURL.String(),
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ciRepo: s.ClientIdentityRepo,
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keysFunc: s.KeyManager.PublicKeys,
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next: handler,
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}
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}
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func (s *Server) ClientMetadata(clientID string) (*oidc.ClientMetadata, error) {
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return s.ClientIdentityRepo.Metadata(clientID)
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}
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2015-08-29 04:33:51 +05:30
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func (s *Server) NewSession(ipdcID, clientID, clientState string, redirectURL url.URL, nonce string, register bool, scope []string) (string, error) {
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sessionID, err := s.SessionManager.NewSession(ipdcID, clientID, clientState, redirectURL, nonce, register, scope)
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2015-08-18 05:57:27 +05:30
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if err != nil {
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return "", err
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}
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log.Infof("Session %s created: clientID=%s clientState=%s", sessionID, clientID, clientState)
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return s.SessionManager.NewSessionKey(sessionID)
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}
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func (s *Server) Login(ident oidc.Identity, key string) (string, error) {
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sessionID, err := s.SessionManager.ExchangeKey(key)
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if err != nil {
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return "", err
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}
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ses, err := s.SessionManager.AttachRemoteIdentity(sessionID, ident)
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if err != nil {
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return "", err
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}
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log.Infof("Session %s remote identity attached: clientID=%s identity=%#v", sessionID, ses.ClientID, ident)
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if ses.Register {
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code, err := s.SessionManager.NewSessionKey(sessionID)
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if err != nil {
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return "", err
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}
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ru := s.absURL(httpPathRegister)
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q := ru.Query()
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q.Set("code", code)
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q.Set("state", ses.ClientState)
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ru.RawQuery = q.Encode()
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return ru.String(), nil
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}
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usr, err := s.UserRepo.GetByRemoteIdentity(nil, user.RemoteIdentity{
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ConnectorID: ses.ConnectorID,
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ID: ses.Identity.ID,
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})
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if err != nil {
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if err == user.ErrorNotFound {
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// If has authenticated via a connector, but no local identity there
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// are a couple of possibilities:
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// * Maybe they are using the wrong connector:
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if ses.Identity.Email != "" {
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if connID, err := getConnectorForUserByEmail(s.UserRepo,
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ses.Identity.Email); err == nil {
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return newLoginURLFromSession(s.IssuerURL,
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ses, true, []string{connID},
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"wrong-connector").String(), nil
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}
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}
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// * User needs to register
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return newLoginURLFromSession(s.IssuerURL,
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ses, true, []string{ses.ConnectorID}, "register-maybe").String(), nil
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}
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return "", err
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}
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2015-09-26 02:54:51 +05:30
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if usr.Disabled {
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return "", user.ErrorNotFound
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}
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2015-08-18 05:57:27 +05:30
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ses, err = s.SessionManager.AttachUser(sessionID, usr.ID)
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if err != nil {
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return "", err
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}
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log.Infof("Session %s user identified: clientID=%s user=%#v", sessionID, ses.ClientID, usr)
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|
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code, err := s.SessionManager.NewSessionKey(sessionID)
|
|
|
|
if err != nil {
|
|
|
|
return "", err
|
|
|
|
}
|
|
|
|
|
|
|
|
ru := ses.RedirectURL
|
|
|
|
q := ru.Query()
|
|
|
|
q.Set("code", code)
|
|
|
|
q.Set("state", ses.ClientState)
|
|
|
|
ru.RawQuery = q.Encode()
|
|
|
|
|
|
|
|
return ru.String(), nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (s *Server) ClientCredsToken(creds oidc.ClientCredentials) (*jose.JWT, error) {
|
|
|
|
ok, err := s.ClientIdentityRepo.Authenticate(creds)
|
|
|
|
if err != nil {
|
|
|
|
log.Errorf("Failed fetching client %s from repo: %v", creds.ID, err)
|
|
|
|
return nil, oauth2.NewError(oauth2.ErrorServerError)
|
2015-09-05 01:15:32 +05:30
|
|
|
}
|
|
|
|
if !ok {
|
2015-08-18 05:57:27 +05:30
|
|
|
return nil, oauth2.NewError(oauth2.ErrorInvalidClient)
|
|
|
|
}
|
|
|
|
|
|
|
|
signer, err := s.KeyManager.Signer()
|
|
|
|
if err != nil {
|
|
|
|
log.Errorf("Failed to generate ID token: %v", err)
|
|
|
|
return nil, oauth2.NewError(oauth2.ErrorServerError)
|
|
|
|
}
|
|
|
|
|
|
|
|
now := time.Now()
|
|
|
|
exp := now.Add(s.SessionManager.ValidityWindow)
|
|
|
|
claims := oidc.NewClaims(s.IssuerURL.String(), creds.ID, creds.ID, now, exp)
|
|
|
|
claims.Add("name", creds.ID)
|
|
|
|
|
|
|
|
jwt, err := jose.NewSignedJWT(claims, signer)
|
|
|
|
if err != nil {
|
|
|
|
log.Errorf("Failed to generate ID token: %v", err)
|
|
|
|
return nil, oauth2.NewError(oauth2.ErrorServerError)
|
|
|
|
}
|
|
|
|
|
|
|
|
log.Infof("Client token sent: clientID=%s", creds.ID)
|
|
|
|
|
|
|
|
return jwt, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (s *Server) CodeToken(creds oidc.ClientCredentials, sessionKey string) (*jose.JWT, string, error) {
|
|
|
|
ok, err := s.ClientIdentityRepo.Authenticate(creds)
|
|
|
|
if err != nil {
|
|
|
|
log.Errorf("Failed fetching client %s from repo: %v", creds.ID, err)
|
|
|
|
return nil, "", oauth2.NewError(oauth2.ErrorServerError)
|
2015-09-05 01:15:32 +05:30
|
|
|
}
|
|
|
|
if !ok {
|
2015-08-18 05:57:27 +05:30
|
|
|
log.Errorf("Failed to Authenticate client %s", creds.ID)
|
|
|
|
return nil, "", oauth2.NewError(oauth2.ErrorInvalidClient)
|
|
|
|
}
|
|
|
|
|
|
|
|
sessionID, err := s.SessionManager.ExchangeKey(sessionKey)
|
|
|
|
if err != nil {
|
|
|
|
return nil, "", oauth2.NewError(oauth2.ErrorInvalidGrant)
|
|
|
|
}
|
|
|
|
|
|
|
|
ses, err := s.SessionManager.Kill(sessionID)
|
|
|
|
if err != nil {
|
|
|
|
return nil, "", oauth2.NewError(oauth2.ErrorInvalidRequest)
|
|
|
|
}
|
|
|
|
|
|
|
|
if ses.ClientID != creds.ID {
|
|
|
|
return nil, "", oauth2.NewError(oauth2.ErrorInvalidGrant)
|
|
|
|
}
|
|
|
|
|
|
|
|
signer, err := s.KeyManager.Signer()
|
|
|
|
if err != nil {
|
|
|
|
log.Errorf("Failed to generate ID token: %v", err)
|
|
|
|
return nil, "", oauth2.NewError(oauth2.ErrorServerError)
|
|
|
|
}
|
|
|
|
|
|
|
|
user, err := s.UserRepo.Get(nil, ses.UserID)
|
|
|
|
if err != nil {
|
|
|
|
log.Errorf("Failed to fetch user %q from repo: %v: ", ses.UserID, err)
|
|
|
|
return nil, "", oauth2.NewError(oauth2.ErrorServerError)
|
|
|
|
}
|
|
|
|
|
|
|
|
claims := ses.Claims(s.IssuerURL.String())
|
|
|
|
user.AddToClaims(claims)
|
|
|
|
|
|
|
|
jwt, err := jose.NewSignedJWT(claims, signer)
|
|
|
|
if err != nil {
|
|
|
|
log.Errorf("Failed to generate ID token: %v", err)
|
|
|
|
return nil, "", oauth2.NewError(oauth2.ErrorServerError)
|
|
|
|
}
|
|
|
|
|
2015-09-01 02:08:06 +05:30
|
|
|
// Generate refresh token when 'scope' contains 'offline_access'.
|
|
|
|
var refreshToken string
|
|
|
|
|
|
|
|
for _, scope := range ses.Scope {
|
|
|
|
if scope == "offline_access" {
|
|
|
|
log.Infof("Session %s requests offline access, will generate refresh token", sessionID)
|
|
|
|
|
|
|
|
refreshToken, err = s.RefreshTokenRepo.Create(ses.UserID, creds.ID)
|
|
|
|
switch err {
|
|
|
|
case nil:
|
|
|
|
break
|
|
|
|
default:
|
|
|
|
log.Errorf("Failed to generate refresh token: %v", err)
|
|
|
|
return nil, "", oauth2.NewError(oauth2.ErrorServerError)
|
|
|
|
}
|
|
|
|
break
|
|
|
|
}
|
2015-08-18 05:57:27 +05:30
|
|
|
}
|
2015-09-01 02:08:06 +05:30
|
|
|
|
|
|
|
log.Infof("Session %s token sent: clientID=%s", sessionID, creds.ID)
|
2015-08-18 05:57:27 +05:30
|
|
|
return jwt, refreshToken, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (s *Server) RefreshToken(creds oidc.ClientCredentials, token string) (*jose.JWT, error) {
|
|
|
|
ok, err := s.ClientIdentityRepo.Authenticate(creds)
|
|
|
|
if err != nil {
|
|
|
|
log.Errorf("Failed fetching client %s from repo: %v", creds.ID, err)
|
|
|
|
return nil, oauth2.NewError(oauth2.ErrorServerError)
|
2015-09-05 01:15:32 +05:30
|
|
|
}
|
|
|
|
if !ok {
|
2015-08-18 05:57:27 +05:30
|
|
|
log.Errorf("Failed to Authenticate client %s", creds.ID)
|
|
|
|
return nil, oauth2.NewError(oauth2.ErrorInvalidClient)
|
|
|
|
}
|
|
|
|
|
|
|
|
userID, err := s.RefreshTokenRepo.Verify(creds.ID, token)
|
|
|
|
switch err {
|
|
|
|
case nil:
|
|
|
|
break
|
|
|
|
case refresh.ErrorInvalidToken:
|
|
|
|
return nil, oauth2.NewError(oauth2.ErrorInvalidRequest)
|
|
|
|
case refresh.ErrorInvalidClientID:
|
|
|
|
return nil, oauth2.NewError(oauth2.ErrorInvalidClient)
|
|
|
|
default:
|
|
|
|
return nil, oauth2.NewError(oauth2.ErrorServerError)
|
|
|
|
}
|
|
|
|
|
|
|
|
user, err := s.UserRepo.Get(nil, userID)
|
|
|
|
if err != nil {
|
|
|
|
// The error can be user.ErrorNotFound, but we are not deleting
|
|
|
|
// user at this moment, so this shouldn't happen.
|
|
|
|
log.Errorf("Failed to fetch user %q from repo: %v: ", userID, err)
|
|
|
|
return nil, oauth2.NewError(oauth2.ErrorServerError)
|
|
|
|
}
|
|
|
|
|
|
|
|
signer, err := s.KeyManager.Signer()
|
|
|
|
if err != nil {
|
|
|
|
log.Errorf("Failed to refresh ID token: %v", err)
|
|
|
|
return nil, oauth2.NewError(oauth2.ErrorServerError)
|
|
|
|
}
|
|
|
|
|
|
|
|
now := time.Now()
|
|
|
|
expireAt := now.Add(session.DefaultSessionValidityWindow)
|
|
|
|
|
|
|
|
claims := oidc.NewClaims(s.IssuerURL.String(), user.ID, creds.ID, now, expireAt)
|
|
|
|
user.AddToClaims(claims)
|
|
|
|
|
|
|
|
jwt, err := jose.NewSignedJWT(claims, signer)
|
|
|
|
if err != nil {
|
|
|
|
log.Errorf("Failed to generate ID token: %v", err)
|
|
|
|
return nil, oauth2.NewError(oauth2.ErrorServerError)
|
|
|
|
}
|
|
|
|
|
2015-09-01 02:08:06 +05:30
|
|
|
log.Infof("New token sent: clientID=%s", creds.ID)
|
2015-08-18 05:57:27 +05:30
|
|
|
|
|
|
|
return jwt, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func (s *Server) JWTVerifierFactory() JWTVerifierFactory {
|
|
|
|
noop := func() error { return nil }
|
|
|
|
|
|
|
|
keyFunc := func() []key.PublicKey {
|
|
|
|
keys, err := s.KeyManager.PublicKeys()
|
|
|
|
if err != nil {
|
|
|
|
log.Errorf("error getting public keys from manager: %v", err)
|
|
|
|
return []key.PublicKey{}
|
|
|
|
}
|
|
|
|
return keys
|
|
|
|
}
|
|
|
|
return func(clientID string) oidc.JWTVerifier {
|
|
|
|
|
|
|
|
return oidc.NewJWTVerifier(s.IssuerURL.String(), clientID, noop, keyFunc)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
type sortableIDPCs []connector.Connector
|
|
|
|
|
|
|
|
func (s sortableIDPCs) Len() int {
|
|
|
|
return len([]connector.Connector(s))
|
|
|
|
}
|
|
|
|
|
|
|
|
func (s sortableIDPCs) Less(i, j int) bool {
|
|
|
|
idpcs := []connector.Connector(s)
|
|
|
|
return idpcs[i].ID() < idpcs[j].ID()
|
|
|
|
}
|
|
|
|
|
|
|
|
func (s sortableIDPCs) Swap(i, j int) {
|
|
|
|
idpcs := []connector.Connector(s)
|
|
|
|
idpcs[i], idpcs[j] = idpcs[j], idpcs[i]
|
|
|
|
}
|