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*: connectors use a different identity object than storage

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This commit is contained in:
Eric Chiang 2016-08-02 21:14:24 -07:00
parent e716c14718
commit f4c5722e42
7 changed files with 121 additions and 95 deletions
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26
connector/connector.go
View File

@ -1,11 +1,7 @@
// Package connector defines interfaces for federated identity strategies.
package connector
import (
"net/http"
"github.com/coreos/poke/storage"
)
import "net/http"
// Connector is a mechanism for federating login to a remote identity service.
//
@ -15,18 +11,32 @@ type Connector interface {
Close() error
}
// Identity represents the ID Token claims supported by the server.
type Identity struct {
UserID string
Username string
Email string
EmailVerified bool
// ConnectorData holds data used by the connector for subsequent requests after initial
// authentication, such as access tokens for upstream provides.
//
// This data is never shared with end users, OAuth clients, or through the API.
ConnectorData []byte
}
// PasswordConnector is an optional interface for password based connectors.
type PasswordConnector interface {
Login(username, password string) (identity storage.Identity, validPassword bool, err error)
Login(username, password string) (identity Identity, validPassword bool, err error)
}
// CallbackConnector is an optional interface for callback based connectors.
type CallbackConnector interface {
LoginURL(callbackURL, state string) (string, error)
HandleCallback(r *http.Request) (identity storage.Identity, state string, err error)
HandleCallback(r *http.Request) (identity Identity, state string, err error)
}
// GroupsConnector is an optional interface for connectors which can map a user to groups.
type GroupsConnector interface {
Groups(identity storage.Identity) ([]string, error)
Groups(identity Identity) ([]string, error)
}

7
connector/github/github.go
View File

@ -14,7 +14,6 @@ import (
"golang.org/x/oauth2/github"
"github.com/coreos/poke/connector"
"github.com/coreos/poke/storage"
)
const baseURL = "https://api.github.com"
@ -85,7 +84,7 @@ func (e *oauth2Error) Error() string {
return e.error + ": " + e.errorDescription
}
func (c *githubConnector) HandleCallback(r *http.Request) (identity storage.Identity, state string, err error) {
func (c *githubConnector) HandleCallback(r *http.Request) (identity connector.Identity, state string, err error) {
q := r.URL.Query()
if errType := q.Get("error"); errType != "" {
return identity, "", &oauth2Error{errType, q.Get("error_description")}
@ -128,7 +127,7 @@ func (c *githubConnector) HandleCallback(r *http.Request) (identity storage.Iden
if username == "" {
username = user.Login
}
identity = storage.Identity{
identity = connector.Identity{
UserID: strconv.Itoa(user.ID),
Username: username,
Email: user.Email,
@ -138,7 +137,7 @@ func (c *githubConnector) HandleCallback(r *http.Request) (identity storage.Iden
return identity, q.Get("state"), nil
}
func (c *githubConnector) Groups(identity storage.Identity) ([]string, error) {
func (c *githubConnector) Groups(identity connector.Identity) ([]string, error) {
var data connectorData
if err := json.Unmarshal(identity.ConnectorData, &data); err != nil {
return nil, fmt.Errorf("decode connector data: %v", err)

10
connector/ldap/ldap.go
View File

@ -8,7 +8,6 @@ import (
"gopkg.in/ldap.v2"
"github.com/coreos/poke/connector"
"github.com/coreos/poke/storage"
)
// Config holds the configuration parameters for the LDAP connector.
@ -32,6 +31,8 @@ type ldapConnector struct {
Config
}
var _ connector.PasswordConnector = (*ldapConnector)(nil)
func (c *ldapConnector) do(f func(c *ldap.Conn) error) error {
// TODO(ericchiang): Connection pooling.
conn, err := ldap.Dial("tcp", c.Host)
@ -43,15 +44,16 @@ func (c *ldapConnector) do(f func(c *ldap.Conn) error) error {
return f(conn)
}
func (c *ldapConnector) Login(username, password string) (storage.Identity, error) {
func (c *ldapConnector) Login(username, password string) (connector.Identity, bool, error) {
err := c.do(func(conn *ldap.Conn) error {
return conn.Bind(fmt.Sprintf("uid=%s,%s", username, c.BindDN), password)
})
if err != nil {
return storage.Identity{}, err
// TODO(ericchiang): Determine when the user has entered invalid credentials.
return connector.Identity{}, false, err
}
return storage.Identity{Username: username}, nil
return connector.Identity{Username: username}, true, nil
}
func (c *ldapConnector) Close() error {

20
connector/mock/connectortest.go
View File

@ -2,12 +2,13 @@
package mock
import (
"bytes"
"errors"
"fmt"
"net/http"
"net/url"
"github.com/coreos/poke/connector"
"github.com/coreos/poke/storage"
)
// New returns a mock connector which requires no user interaction. It always returns
@ -16,6 +17,11 @@ func New() connector.Connector {
return mockConnector{}
}
var (
_ connector.CallbackConnector = mockConnector{}
_ connector.GroupsConnector = mockConnector{}
)
type mockConnector struct{}
func (m mockConnector) Close() error { return nil }
@ -31,16 +37,22 @@ func (m mockConnector) LoginURL(callbackURL, state string) (string, error) {
return u.String(), nil
}
func (m mockConnector) HandleCallback(r *http.Request) (storage.Identity, string, error) {
return storage.Identity{
var connectorData = []byte("foobar")
func (m mockConnector) HandleCallback(r *http.Request) (connector.Identity, string, error) {
return connector.Identity{
UserID: "0-385-28089-0",
Username: "Kilgore Trout",
Email: "kilgore@kilgore.trout",
EmailVerified: true,
ConnectorData: connectorData,
}, r.URL.Query().Get("state"), nil
}
func (m mockConnector) Groups(identity storage.Identity) ([]string, error) {
func (m mockConnector) Groups(identity connector.Identity) ([]string, error) {
if !bytes.Equal(identity.ConnectorData, connectorData) {
return nil, errors.New("connector data mismatch")
}
return []string{"authors"}, nil
}

65
server/handlers.go
View File

@ -180,17 +180,14 @@ func (s *Server) handleConnectorLogin(w http.ResponseWriter, r *http.Request) {
renderPasswordTmpl(w, state, r.URL.String(), "Invalid credentials")
return
}
groups, ok, err := s.groups(identity, state, conn.Connector)
redirectURL, err := s.finalizeLogin(identity, state, connID, conn.Connector)
if err != nil {
log.Printf("Failed to finalize login: %v", err)
s.renderError(w, http.StatusInternalServerError, errServerError, "")
return
}
if ok {
identity.Groups = groups
}
s.redirectToApproval(w, r, identity, connID, state)
http.Redirect(w, r, redirectURL, http.StatusSeeOther)
default:
s.notFound(w, r)
}
@ -215,40 +212,30 @@ func (s *Server) handleConnectorCallback(w http.ResponseWriter, r *http.Request)
s.renderError(w, http.StatusInternalServerError, errServerError, "")
return
}
groups, ok, err := s.groups(identity, state, conn.Connector)
redirectURL, err := s.finalizeLogin(identity, state, connID, conn.Connector)
if err != nil {
log.Printf("Failed to finalize login: %v", err)
s.renderError(w, http.StatusInternalServerError, errServerError, "")
return
}
if ok {
identity.Groups = groups
}
s.redirectToApproval(w, r, identity, connID, state)
http.Redirect(w, r, redirectURL, http.StatusSeeOther)
}
func (s *Server) redirectToApproval(w http.ResponseWriter, r *http.Request, identity storage.Identity, connectorID, state string) {
updater := func(a storage.AuthRequest) (storage.AuthRequest, error) {
a.Identity = &identity
a.ConnectorID = connectorID
return a, nil
}
if err := s.storage.UpdateAuthRequest(state, updater); err != nil {
log.Printf("Failed to updated auth request with identity: %v", err)
s.renderError(w, http.StatusInternalServerError, errServerError, "")
return
}
http.Redirect(w, r, path.Join(s.issuerURL.Path, "/approval")+"?state="+state, http.StatusSeeOther)
func (s *Server) finalizeLogin(identity connector.Identity, authReqID, connectorID string, conn connector.Connector) (string, error) {
claims := storage.Identity{
UserID: identity.UserID,
Username: identity.Username,
Email: identity.Email,
EmailVerified: identity.EmailVerified,
}
func (s *Server) groups(identity storage.Identity, authReqID string, conn connector.Connector) ([]string, bool, error) {
groupsConn, ok := conn.(connector.GroupsConnector)
if !ok {
return nil, false, nil
}
if ok {
authReq, err := s.storage.GetAuthRequest(authReqID)
if err != nil {
log.Printf("get auth request: %v", err)
return nil, false, err
return "", fmt.Errorf("get auth request: %v", err)
}
reqGroups := func() bool {
for _, scope := range authReq.Scopes {
@ -258,11 +245,23 @@ func (s *Server) groups(identity storage.Identity, authReqID string, conn connec
}
return false
}()
if !reqGroups {
return nil, false, nil
if reqGroups {
if claims.Groups, err = groupsConn.Groups(identity); err != nil {
return "", fmt.Errorf("getting groups: %v", err)
}
groups, err := groupsConn.Groups(identity)
return groups, true, err
}
}
updater := func(a storage.AuthRequest) (storage.AuthRequest, error) {
a.Identity = &claims
a.ConnectorID = connectorID
a.ConnectorData = identity.ConnectorData
return a, nil
}
if err := s.storage.UpdateAuthRequest(authReqID, updater); err != nil {
return "", fmt.Errorf("failed to update auth request: %v", err)
}
return path.Join(s.issuerURL.Path, "/approval") + "?state=" + authReqID, nil
}
func (s *Server) handleApproval(w http.ResponseWriter, r *http.Request) {

11
storage/kubernetes/types.go
View File

@ -77,8 +77,6 @@ type Identity struct {
Email string `json:"email"`
EmailVerified bool `json:"emailVerified"`
Groups []string `json:"groups,omitempty"`
ConnectorData []byte `json:"connectorData,omitempty"`
}
func fromStorageIdentity(i storage.Identity) Identity {
@ -88,7 +86,6 @@ func fromStorageIdentity(i storage.Identity) Identity {
Email: i.Email,
EmailVerified: i.EmailVerified,
Groups: i.Groups,
ConnectorData: i.ConnectorData,
}
}
@ -99,7 +96,6 @@ func toStorageIdentity(i Identity) storage.Identity {
Email: i.Email,
EmailVerified: i.EmailVerified,
Groups: i.Groups,
ConnectorData: i.ConnectorData,
}
}
@ -127,6 +123,7 @@ type AuthRequest struct {
Identity *Identity `json:"identity,omitempty"`
// The connector used to login the user. Set when the user authenticates.
ConnectorID string `json:"connectorID,omitempty"`
ConnectorData []byte `json:"connectorData,omitempty"`
Expiry time.Time `json:"expiry"`
}
@ -149,6 +146,7 @@ func toStorageAuthRequest(req AuthRequest) storage.AuthRequest {
State: req.State,
ForceApprovalPrompt: req.ForceApprovalPrompt,
ConnectorID: req.ConnectorID,
ConnectorData: req.ConnectorData,
Expiry: req.Expiry,
}
if req.Identity != nil {
@ -176,6 +174,7 @@ func (cli *client) fromStorageAuthRequest(a storage.AuthRequest) AuthRequest {
State: a.State,
ForceApprovalPrompt: a.ForceApprovalPrompt,
ConnectorID: a.ConnectorID,
ConnectorData: a.ConnectorData,
Expiry: a.Expiry,
}
if a.Identity != nil {
@ -199,7 +198,9 @@ type AuthCode struct {
State string `json:"state,omitempty"`
Identity Identity `json:"identity,omitempty"`
ConnectorID string `json:"connectorID,omitempty"`
ConnectorData []byte `json:"connectorData,omitempty"`
Expiry time.Time `json:"expiry"`
}
@ -224,6 +225,7 @@ func (cli *client) fromStorageAuthCode(a storage.AuthCode) AuthCode {
ClientID: a.ClientID,
RedirectURI: a.RedirectURI,
ConnectorID: a.ConnectorID,
ConnectorData: a.ConnectorData,
Nonce: a.Nonce,
Scopes: a.Scopes,
Identity: fromStorageIdentity(a.Identity),
@ -237,6 +239,7 @@ func toStorageAuthCode(a AuthCode) storage.AuthCode {
ClientID: a.ClientID,
RedirectURI: a.RedirectURI,
ConnectorID: a.ConnectorID,
ConnectorData: a.ConnectorData,
Nonce: a.Nonce,
Scopes: a.Scopes,
Identity: toStorageIdentity(a.Identity),

15
storage/storage.go
View File

@ -104,12 +104,6 @@ type Identity struct {
EmailVerified bool
Groups []string
// ConnectorData holds data used by the connector for subsequent requests after initial
// authentication, such as access tokens for upstream provides.
//
// This data is never shared with end users, OAuth clients, or through the API.
ConnectorData []byte
}
// AuthRequest represents a OAuth2 client authorization request. It holds the state
@ -133,8 +127,11 @@ type AuthRequest struct {
// The identity of the end user. Generally nil until the user authenticates
// with a backend.
Identity *Identity
// The connector used to login the user. Set when the user authenticates.
// The connector used to login the user and any data the connector wishes to persists.
// Set when the user authenticates.
ConnectorID string
ConnectorData []byte
Expiry time.Time
}
@ -145,7 +142,9 @@ type AuthCode struct {
ClientID string
RedirectURI string
ConnectorID string
ConnectorData []byte
Nonce string
@ -163,7 +162,9 @@ type Refresh struct {
// Client this refresh token is valid for.
ClientID string
ConnectorID string
ConnectorData []byte
// Scopes present in the initial request. Refresh requests may specify a set
// of scopes different from the initial request when refreshing a token,