254 lines
9.0 KiB
Go
254 lines
9.0 KiB
Go
// This file is part of MinIO Console Server
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// Copyright (c) 2021 MinIO, Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package operatorapi
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import (
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"bytes"
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"context"
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"net/http"
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"time"
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"github.com/minio/minio-go/v7/pkg/credentials"
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"github.com/minio/console/restapi"
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iampolicy "github.com/minio/pkg/iam/policy"
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"github.com/go-openapi/runtime"
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"github.com/go-openapi/runtime/middleware"
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"github.com/minio/console/models"
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"github.com/minio/console/operatorapi/operations"
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"github.com/minio/console/operatorapi/operations/user_api"
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"github.com/minio/console/pkg/acl"
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"github.com/minio/console/pkg/auth"
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"github.com/minio/console/pkg/auth/idp/oauth2"
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)
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func registerLoginHandlers(api *operations.OperatorAPI) {
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// get login strategy
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api.UserAPILoginDetailHandler = user_api.LoginDetailHandlerFunc(func(params user_api.LoginDetailParams) middleware.Responder {
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loginDetails, err := getLoginDetailsResponse()
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if err != nil {
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return user_api.NewLoginDetailDefault(int(err.Code)).WithPayload(err)
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}
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return user_api.NewLoginDetailOK().WithPayload(loginDetails)
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})
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// post login
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api.UserAPILoginHandler = user_api.LoginHandlerFunc(func(params user_api.LoginParams) middleware.Responder {
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loginResponse, err := getLoginResponse(params.Body)
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if err != nil {
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return user_api.NewLoginDefault(int(err.Code)).WithPayload(err)
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}
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// Custom response writer to set the session cookies
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return middleware.ResponderFunc(func(w http.ResponseWriter, p runtime.Producer) {
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cookies := restapi.NewSessionCookieForConsole(loginResponse.SessionID)
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for _, cookie := range cookies {
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http.SetCookie(w, &cookie)
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}
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user_api.NewLoginCreated().WithPayload(loginResponse).WriteResponse(w, p)
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})
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})
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api.UserAPILoginOauth2AuthHandler = user_api.LoginOauth2AuthHandlerFunc(func(params user_api.LoginOauth2AuthParams) middleware.Responder {
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loginResponse, err := getLoginOauth2AuthResponse()
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if err != nil {
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return user_api.NewLoginOauth2AuthDefault(int(err.Code)).WithPayload(err)
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}
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// Custom response writer to set the session cookies
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return middleware.ResponderFunc(func(w http.ResponseWriter, p runtime.Producer) {
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cookies := restapi.NewSessionCookieForConsole(loginResponse.SessionID)
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for _, cookie := range cookies {
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http.SetCookie(w, &cookie)
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}
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user_api.NewLoginOauth2AuthCreated().WithPayload(loginResponse).WriteResponse(w, p)
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})
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})
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api.UserAPILoginOperatorHandler = user_api.LoginOperatorHandlerFunc(func(params user_api.LoginOperatorParams) middleware.Responder {
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loginResponse, err := getLoginOperatorResponse(params.Body)
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if err != nil {
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return user_api.NewLoginOperatorDefault(int(err.Code)).WithPayload(err)
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}
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// Custom response writer to set the session cookies
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return middleware.ResponderFunc(func(w http.ResponseWriter, p runtime.Producer) {
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cookies := restapi.NewSessionCookieForConsole(loginResponse.SessionID)
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for _, cookie := range cookies {
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http.SetCookie(w, &cookie)
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}
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user_api.NewLoginOperatorCreated().WithPayload(loginResponse).WriteResponse(w, p)
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})
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})
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}
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// login performs a check of consoleCredentials against MinIO, generates some claims and returns the jwt
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// for subsequent authentication
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func login(credentials restapi.ConsoleCredentialsI) (*string, error) {
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// try to obtain consoleCredentials,
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tokens, err := credentials.Get()
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if err != nil {
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return nil, err
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}
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// if we made it here, the consoleCredentials work, generate a jwt with claims
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token, err := auth.NewEncryptedTokenForClient(&tokens, credentials.GetAccountAccessKey(), credentials.GetActions())
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if err != nil {
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LogError("error authenticating user: %v", err)
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return nil, errInvalidCredentials
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}
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return &token, nil
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}
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// getAccountPolicy will return the associated policy of the current account
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func getAccountPolicy(ctx context.Context, client restapi.MinioAdmin) (*iampolicy.Policy, error) {
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// Obtain the current policy assigned to this user
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// necessary for generating the list of allowed endpoints
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accountInfo, err := client.AccountInfo(ctx)
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if err != nil {
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return nil, err
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}
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return iampolicy.ParseConfig(bytes.NewReader(accountInfo.Policy))
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}
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// getConsoleCredentials will return consoleCredentials interface including the associated policy of the current account
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func getConsoleCredentials(ctx context.Context, accessKey, secretKey string) (*restapi.ConsoleCredentials, error) {
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creds, err := newConsoleCredentials(secretKey)
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if err != nil {
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return nil, err
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}
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// cCredentials will be sts credentials, account credentials will be need it in the scenario the user wish
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// to change its password
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cCredentials := &restapi.ConsoleCredentials{
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ConsoleCredentials: creds,
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AccountAccessKey: accessKey,
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}
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tokens, err := cCredentials.Get()
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if err != nil {
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return nil, err
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}
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// initialize admin client
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mAdminClient, err := restapi.NewMinioAdminClient(&models.Principal{
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STSAccessKeyID: tokens.AccessKeyID,
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STSSecretAccessKey: tokens.SecretAccessKey,
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STSSessionToken: tokens.SessionToken,
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})
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if err != nil {
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return nil, err
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}
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userAdminClient := restapi.AdminClient{Client: mAdminClient}
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// Obtain the current policy assigned to this user
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// necessary for generating the list of allowed endpoints
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policy, err := getAccountPolicy(ctx, userAdminClient)
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if err != nil {
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return nil, err
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}
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// by default every user starts with an empty array of available actions
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// therefore we would have access only to pages that doesn't require any privilege
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// ie: service-account page
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var actions []string
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// if a policy is assigned to this user we parse the actions from there
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if policy != nil {
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actions = acl.GetActionsStringFromPolicy(policy)
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}
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cCredentials.Actions = actions
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return cCredentials, nil
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}
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// getLoginResponse performs login() and serializes it to the handler's output
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func getLoginResponse(lr *models.LoginRequest) (*models.LoginResponse, *models.Error) {
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ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
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defer cancel()
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// prepare console credentials
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consolCreds, err := getConsoleCredentials(ctx, *lr.AccessKey, *lr.SecretKey)
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if err != nil {
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return nil, prepareError(errInvalidCredentials, nil, err)
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}
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sessionID, err := login(consolCreds)
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if err != nil {
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return nil, prepareError(errInvalidCredentials, nil, err)
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}
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// serialize output
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loginResponse := &models.LoginResponse{
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SessionID: *sessionID,
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}
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return loginResponse, nil
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}
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// getLoginDetailsResponse returns information regarding the Console authentication mechanism.
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func getLoginDetailsResponse() (*models.LoginDetails, *models.Error) {
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loginStrategy := models.LoginDetailsLoginStrategyServiceDashAccount
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redirectURL := ""
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if oauth2.IsIDPEnabled() {
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loginStrategy = models.LoginDetailsLoginStrategyRedirect
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// initialize new oauth2 client
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oauth2Client, err := oauth2.NewOauth2ProviderClient(nil, restapi.GetConsoleHTTPClient())
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if err != nil {
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return nil, prepareError(err)
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}
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// Validate user against IDP
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identityProvider := &auth.IdentityProvider{Client: oauth2Client}
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redirectURL = identityProvider.GenerateLoginURL()
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}
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loginDetails := &models.LoginDetails{
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LoginStrategy: loginStrategy,
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Redirect: redirectURL,
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}
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return loginDetails, nil
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}
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func getLoginOauth2AuthResponse() (*models.LoginResponse, *models.Error) {
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creds, err := newConsoleCredentials(getK8sSAToken())
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if err != nil {
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return nil, prepareError(err)
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}
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consoleCredentials := restapi.ConsoleCredentials{ConsoleCredentials: creds, Actions: []string{}}
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token, err := login(consoleCredentials)
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if err != nil {
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return nil, prepareError(errInvalidCredentials, nil, err)
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}
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// serialize output
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loginResponse := &models.LoginResponse{
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SessionID: *token,
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}
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return loginResponse, nil
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}
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func newConsoleCredentials(secretKey string) (*credentials.Credentials, error) {
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creds, err := auth.GetConsoleCredentialsForOperator(secretKey)
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if err != nil {
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return nil, err
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}
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return creds, nil
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}
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// getLoginOperatorResponse validate the provided service account token against k8s api
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func getLoginOperatorResponse(lmr *models.LoginOperatorRequest) (*models.LoginResponse, *models.Error) {
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creds, err := newConsoleCredentials(*lmr.Jwt)
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if err != nil {
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return nil, prepareError(err)
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}
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consoleCreds := restapi.ConsoleCredentials{ConsoleCredentials: creds, Actions: []string{}}
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token, err := login(consoleCreds)
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if err != nil {
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return nil, prepareError(errInvalidCredentials, nil, err)
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}
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// serialize output
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loginResponse := &models.LoginResponse{
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SessionID: *token,
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}
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return loginResponse, nil
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}
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