package localdb
import (
- "bytes"
"context"
- "crypto/hmac"
- "crypto/sha256"
- "encoding/base64"
"errors"
- "fmt"
+ "net/http"
"net/url"
- "strings"
- "sync"
- "text/template"
- "time"
- "git.curoverse.com/arvados.git/lib/controller/rpc"
- "git.curoverse.com/arvados.git/sdk/go/arvados"
- "git.curoverse.com/arvados.git/sdk/go/auth"
- "github.com/coreos/go-oidc"
- "golang.org/x/oauth2"
+ "git.arvados.org/arvados.git/lib/controller/rpc"
+ "git.arvados.org/arvados.git/sdk/go/arvados"
+ "git.arvados.org/arvados.git/sdk/go/auth"
+ "git.arvados.org/arvados.git/sdk/go/httpserver"
)
-type googleLoginController struct {
- issuer string // override OIDC issuer URL (normally https://accounts.google.com) for testing
- provider *oidc.Provider
- mu sync.Mutex
+type loginController interface {
+ Login(ctx context.Context, opts arvados.LoginOptions) (arvados.LoginResponse, error)
+ Logout(ctx context.Context, opts arvados.LogoutOptions) (arvados.LogoutResponse, error)
+ UserAuthenticate(ctx context.Context, options arvados.UserAuthenticateOptions) (arvados.APIClientAuthorization, error)
}
-func (ctrl *googleLoginController) getProvider() (*oidc.Provider, error) {
- ctrl.mu.Lock()
- defer ctrl.mu.Unlock()
- if ctrl.provider == nil {
- issuer := ctrl.issuer
- if issuer == "" {
- issuer = "https://accounts.google.com"
+func chooseLoginController(cluster *arvados.Cluster, railsProxy *railsProxy) loginController {
+ wantGoogle := cluster.Login.GoogleClientID != ""
+ wantSSO := cluster.Login.ProviderAppID != ""
+ wantPAM := cluster.Login.PAM
+ wantLDAP := cluster.Login.LDAP.Enable
+ switch {
+ case wantGoogle && !wantSSO && !wantPAM && !wantLDAP:
+ return &googleLoginController{Cluster: cluster, RailsProxy: railsProxy}
+ case !wantGoogle && wantSSO && !wantPAM && !wantLDAP:
+ return &ssoLoginController{railsProxy}
+ case !wantGoogle && !wantSSO && wantPAM && !wantLDAP:
+ return &pamLoginController{Cluster: cluster, RailsProxy: railsProxy}
+ case !wantGoogle && !wantSSO && !wantPAM && wantLDAP:
+ return &ldapLoginController{Cluster: cluster, RailsProxy: railsProxy}
+ default:
+ return errorLoginController{
+ error: errors.New("configuration problem: exactly one of Login.GoogleClientID, Login.ProviderAppID, Login.PAM, or Login.LDAP.Enable must be configured"),
}
- provider, err := oidc.NewProvider(context.Background(), issuer)
- if err != nil {
- return nil, err
- }
- ctrl.provider = provider
}
- return ctrl.provider, nil
}
-func (ctrl *googleLoginController) Login(ctx context.Context, cluster *arvados.Cluster, railsproxy *railsProxy, opts arvados.LoginOptions) (arvados.LoginResponse, error) {
- provider, err := ctrl.getProvider()
- if err != nil {
- return ctrl.loginError(fmt.Errorf("error setting up OpenID Connect provider: %s", err))
- }
- redirURL, err := (*url.URL)(&cluster.Services.Controller.ExternalURL).Parse("/login")
- if err != nil {
- return ctrl.loginError(fmt.Errorf("error making redirect URL: %s", err))
- }
- conf := &oauth2.Config{
- ClientID: cluster.Login.GoogleClientID,
- ClientSecret: cluster.Login.GoogleClientSecret,
- Endpoint: provider.Endpoint(),
- Scopes: []string{oidc.ScopeOpenID, "profile", "email"},
- RedirectURL: redirURL.String(),
- }
- verifier := provider.Verifier(&oidc.Config{
- ClientID: conf.ClientID,
- })
- if opts.State == "" {
- // Initiate Google sign-in.
- if opts.ReturnTo == "" {
- return ctrl.loginError(errors.New("missing return_to parameter"))
- }
- me := url.URL(cluster.Services.Controller.ExternalURL)
- callback, err := me.Parse("/" + arvados.EndpointLogin.Path)
- if err != nil {
- return ctrl.loginError(err)
- }
- conf.RedirectURL = callback.String()
- state := ctrl.newOAuth2State([]byte(cluster.SystemRootToken), opts.Remote, opts.ReturnTo)
- return arvados.LoginResponse{
- RedirectLocation: conf.AuthCodeURL(state.String(),
- // prompt=select_account tells Google
- // to show the "choose which Google
- // account" page, even if the client
- // is currently logged in to exactly
- // one Google account.
- oauth2.SetAuthURLParam("prompt", "select_account")),
- }, nil
- } else {
- // Callback after Google sign-in.
- state := ctrl.parseOAuth2State(opts.State)
- if !state.verify([]byte(cluster.SystemRootToken)) {
- return ctrl.loginError(errors.New("invalid OAuth2 state"))
- }
- oauth2Token, err := conf.Exchange(ctx, opts.Code)
- if err != nil {
- return ctrl.loginError(fmt.Errorf("error in OAuth2 exchange: %s", err))
- }
- rawIDToken, ok := oauth2Token.Extra("id_token").(string)
- if !ok {
- return ctrl.loginError(errors.New("error in OAuth2 exchange: no ID token in OAuth2 token"))
- }
- idToken, err := verifier.Verify(ctx, rawIDToken)
- if err != nil {
- return ctrl.loginError(fmt.Errorf("error verifying ID token: %s", err))
- }
- var claims struct {
- Name string `json:"name"`
- Email string `json:"email"`
- Verified bool `json:"email_verified"`
- }
- if err := idToken.Claims(&claims); err != nil {
- return ctrl.loginError(fmt.Errorf("error extracting claims from ID token: %s", err))
- }
- if !claims.Verified {
- return ctrl.loginError(errors.New("cannot authenticate using an unverified email address"))
- }
-
- firstname, lastname := strings.TrimSpace(claims.Name), ""
- if names := strings.Fields(firstname); len(names) > 1 {
- firstname = strings.Join(names[0:len(names)-1], " ")
- lastname = names[len(names)-1]
- }
+// Login and Logout are passed through to the wrapped railsProxy;
+// UserAuthenticate is rejected.
+type ssoLoginController struct{ *railsProxy }
- ctxRoot := auth.NewContext(ctx, &auth.Credentials{Tokens: []string{cluster.SystemRootToken}})
- return railsproxy.UserSessionCreate(ctxRoot, rpc.UserSessionCreateOptions{
- ReturnTo: state.Remote + "," + state.ReturnTo,
- AuthInfo: map[string]interface{}{
- "email": claims.Email,
- "first_name": firstname,
- "last_name": lastname,
- },
- })
- }
+func (ctrl *ssoLoginController) UserAuthenticate(ctx context.Context, opts arvados.UserAuthenticateOptions) (arvados.APIClientAuthorization, error) {
+ return arvados.APIClientAuthorization{}, httpserver.ErrorWithStatus(errors.New("username/password authentication is not available"), http.StatusBadRequest)
}
-func (ctrl *googleLoginController) loginError(sendError error) (resp arvados.LoginResponse, err error) {
- tmpl, err := template.New("error").Parse(`<h2>Login error:</h2><p>{{.}}</p>`)
- if err != nil {
- return
- }
- err = tmpl.Execute(&resp.HTML, sendError.Error())
- return
-}
+type errorLoginController struct{ error }
-func (ctrl *googleLoginController) newOAuth2State(key []byte, remote, returnTo string) oauth2State {
- s := oauth2State{
- Time: time.Now().Unix(),
- Remote: remote,
- ReturnTo: returnTo,
- }
- s.HMAC = s.computeHMAC(key)
- return s
+func (ctrl errorLoginController) Login(context.Context, arvados.LoginOptions) (arvados.LoginResponse, error) {
+ return arvados.LoginResponse{}, ctrl.error
}
-
-type oauth2State struct {
- HMAC []byte // hash of other fields; see computeHMAC()
- Time int64 // creation time (unix timestamp)
- Remote string // remote cluster if requesting a salted token, otherwise blank
- ReturnTo string // redirect target
+func (ctrl errorLoginController) Logout(context.Context, arvados.LogoutOptions) (arvados.LogoutResponse, error) {
+ return arvados.LogoutResponse{}, ctrl.error
}
-
-func (ctrl *googleLoginController) parseOAuth2State(encoded string) (s oauth2State) {
- // Errors are not checked. If decoding/parsing fails, the
- // token will be rejected by verify().
- decoded, _ := base64.RawURLEncoding.DecodeString(encoded)
- f := strings.Split(string(decoded), "\n")
- if len(f) != 4 {
- return
- }
- fmt.Sscanf(f[0], "%x", &s.HMAC)
- fmt.Sscanf(f[1], "%x", &s.Time)
- fmt.Sscanf(f[2], "%s", &s.Remote)
- fmt.Sscanf(f[3], "%s", &s.ReturnTo)
- return
+func (ctrl errorLoginController) UserAuthenticate(context.Context, arvados.UserAuthenticateOptions) (arvados.APIClientAuthorization, error) {
+ return arvados.APIClientAuthorization{}, ctrl.error
}
-func (s oauth2State) verify(key []byte) bool {
- if delta := time.Now().Unix() - s.Time; delta < 0 || delta > 300 {
- return false
+func noopLogout(cluster *arvados.Cluster, opts arvados.LogoutOptions) (arvados.LogoutResponse, error) {
+ target := opts.ReturnTo
+ if target == "" {
+ if cluster.Services.Workbench2.ExternalURL.Host != "" {
+ target = cluster.Services.Workbench2.ExternalURL.String()
+ } else {
+ target = cluster.Services.Workbench1.ExternalURL.String()
+ }
}
- return hmac.Equal(s.computeHMAC(key), s.HMAC)
-}
-
-func (s oauth2State) String() string {
- var buf bytes.Buffer
- enc := base64.NewEncoder(base64.RawURLEncoding, &buf)
- fmt.Fprintf(enc, "%x\n%x\n%s\n%s", s.HMAC, s.Time, s.Remote, s.ReturnTo)
- enc.Close()
- return buf.String()
+ return arvados.LogoutResponse{RedirectLocation: target}, nil
}
-func (s oauth2State) computeHMAC(key []byte) []byte {
- mac := hmac.New(sha256.New, key)
- fmt.Fprintf(mac, "%x %s %s", s.Time, s.Remote, s.ReturnTo)
- return mac.Sum(nil)
+func createAPIClientAuthorization(ctx context.Context, conn *rpc.Conn, rootToken string, authinfo rpc.UserSessionAuthInfo) (arvados.APIClientAuthorization, error) {
+ ctxRoot := auth.NewContext(ctx, &auth.Credentials{Tokens: []string{rootToken}})
+ resp, err := conn.UserSessionCreate(ctxRoot, rpc.UserSessionCreateOptions{
+ // Send a fake ReturnTo value instead of the caller's
+ // opts.ReturnTo. We won't follow the resulting
+ // redirect target anyway.
+ ReturnTo: ",https://none.invalid",
+ AuthInfo: authinfo,
+ })
+ if err != nil {
+ return arvados.APIClientAuthorization{}, err
+ }
+ target, err := url.Parse(resp.RedirectLocation)
+ if err != nil {
+ return arvados.APIClientAuthorization{}, err
+ }
+ token := target.Query().Get("api_token")
+ return conn.APIClientAuthorizationCurrent(auth.NewContext(ctx, auth.NewCredentials(token)), arvados.GetOptions{})
}
projects / arvados.git / blobdiff