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auth_config.go
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/
auth_config.go
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package origin
import (
"crypto/md5"
"fmt"
"net/url"
"github.com/pborman/uuid"
"k8s.io/kubernetes/pkg/storage"
"github.com/openshift/origin/pkg/auth/server/session"
configapi "github.com/openshift/origin/pkg/cmd/server/api"
"github.com/openshift/origin/pkg/cmd/server/api/latest"
"github.com/openshift/origin/pkg/cmd/server/etcd"
identityregistry "github.com/openshift/origin/pkg/user/registry/identity"
identityetcd "github.com/openshift/origin/pkg/user/registry/identity/etcd"
userregistry "github.com/openshift/origin/pkg/user/registry/user"
useretcd "github.com/openshift/origin/pkg/user/registry/user/etcd"
)
type AuthConfig struct {
Options configapi.OAuthConfig
// AssetPublicAddresses contains valid redirectURI prefixes to direct browsers to the web console
AssetPublicAddresses []string
// EtcdHelper provides storage capabilities
EtcdHelper storage.Interface
// EtcdBackends is a list of storage interfaces, each of which talks to a single etcd backend.
// These are only used to ensure newly created tokens are distributed to all backends before returning them for use.
// EtcdHelper should normally be used for storage functions.
EtcdBackends []storage.Interface
UserRegistry userregistry.Registry
IdentityRegistry identityregistry.Registry
SessionAuth *session.Authenticator
}
func BuildAuthConfig(options configapi.MasterConfig) (*AuthConfig, error) {
client, err := etcd.EtcdClient(options.EtcdClientInfo)
if err != nil {
return nil, err
}
etcdHelper, err := NewEtcdStorage(client, options.EtcdStorageConfig.OpenShiftStorageVersion, options.EtcdStorageConfig.OpenShiftStoragePrefix)
if err != nil {
return nil, fmt.Errorf("Error setting up server storage: %v", err)
}
// Build a list of storage.Interface objects, each of which only speaks to one of the etcd backends
etcdBackends := []storage.Interface{}
for _, url := range options.EtcdClientInfo.URLs {
backendClientInfo := options.EtcdClientInfo
backendClientInfo.URLs = []string{url}
backendClient, err := etcd.EtcdClient(backendClientInfo)
if err != nil {
return nil, err
}
backendEtcdHelper, err := NewEtcdStorage(backendClient, options.EtcdStorageConfig.OpenShiftStorageVersion, options.EtcdStorageConfig.OpenShiftStoragePrefix)
if err != nil {
return nil, fmt.Errorf("Error setting up server storage: %v", err)
}
etcdBackends = append(etcdBackends, backendEtcdHelper)
}
var sessionAuth *session.Authenticator
if options.OAuthConfig.SessionConfig != nil {
secure := isHTTPS(options.OAuthConfig.MasterPublicURL)
auth, err := BuildSessionAuth(secure, options.OAuthConfig.SessionConfig)
if err != nil {
return nil, err
}
sessionAuth = auth
}
// Build the list of valid redirect_uri prefixes for a login using the openshift-web-console client to redirect to
// TODO: allow configuring this
// TODO: remove hard-coding of development UI server
assetPublicURLs := []string{}
if !options.DisabledFeatures.Has(configapi.FeatureWebConsole) {
assetPublicURLs = []string{options.OAuthConfig.AssetPublicURL, "http://localhost:9000", "https://localhost:9000"}
}
userStorage := useretcd.NewREST(etcdHelper)
userRegistry := userregistry.NewRegistry(userStorage)
identityStorage := identityetcd.NewREST(etcdHelper)
identityRegistry := identityregistry.NewRegistry(identityStorage)
ret := &AuthConfig{
Options: *options.OAuthConfig,
AssetPublicAddresses: assetPublicURLs,
EtcdHelper: etcdHelper,
EtcdBackends: etcdBackends,
IdentityRegistry: identityRegistry,
UserRegistry: userRegistry,
SessionAuth: sessionAuth,
}
return ret, nil
}
func BuildSessionAuth(secure bool, config *configapi.SessionConfig) (*session.Authenticator, error) {
secrets, err := getSessionSecrets(config.SessionSecretsFile)
if err != nil {
return nil, err
}
sessionStore := session.NewStore(secure, int(config.SessionMaxAgeSeconds), secrets...)
return session.NewAuthenticator(sessionStore, config.SessionName), nil
}
func getSessionSecrets(filename string) ([]string, error) {
// Build secrets list
secrets := []string{}
if len(filename) != 0 {
sessionSecrets, err := latest.ReadSessionSecrets(filename)
if err != nil {
return nil, fmt.Errorf("error reading sessionSecretsFile %s: %v", filename, err)
}
if len(sessionSecrets.Secrets) == 0 {
return nil, fmt.Errorf("sessionSecretsFile %s contained no secrets", filename)
}
for _, s := range sessionSecrets.Secrets {
secrets = append(secrets, s.Authentication)
secrets = append(secrets, s.Encryption)
}
} else {
// Generate random signing and encryption secrets if none are specified in config
secrets = append(secrets, fmt.Sprintf("%x", md5.Sum([]byte(uuid.NewRandom().String()))))
secrets = append(secrets, fmt.Sprintf("%x", md5.Sum([]byte(uuid.NewRandom().String()))))
}
return secrets, nil
}
// isHTTPS returns true if the given URL is a valid https URL
func isHTTPS(u string) bool {
parsedURL, err := url.Parse(u)
return err == nil && parsedURL.Scheme == "https"
}