Support m.login.token in /login.

clientapi/auth/authtypes/logintypes.go

@@ -10,4 +10,5 @@ const (
 	LoginTypeSharedSecret       = "org.matrix.login.shared_secret"
 	LoginTypeRecaptcha          = "m.login.recaptcha"
 	LoginTypeApplicationService = "m.login.application_service"
+	LoginTypeToken              = "m.login.token"
 )

clientapi/auth/login.go

@@ -0,0 +1,83 @@
+// Copyright 2021 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package auth
+
+import (
+	"context"
+	"encoding/json"
+	"io"
+	"io/ioutil"
+	"net/http"
+
+	"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
+	"github.com/matrix-org/dendrite/clientapi/jsonerror"
+	"github.com/matrix-org/dendrite/setup/config"
+	uapi "github.com/matrix-org/dendrite/userapi/api"
+	"github.com/matrix-org/util"
+)
+
+// LoginFromJSONReader performs authentication given a login request body reader and
+// some context. It returns the basic login information and a cleanup function to be
+// called after authorization has completed, with the result of the authorization.
+// If the final return value is non-nil, an error occurred and the cleanup function
+// is nil.
+func LoginFromJSONReader(ctx context.Context, r io.Reader, accountDB AccountDatabase, userAPI UserInternalAPIForLogin, cfg *config.ClientAPI) (*Login, LoginCleanupFunc, *util.JSONResponse) {
+	reqBytes, err := ioutil.ReadAll(r)
+	if err != nil {
+		err := &util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: jsonerror.BadJSON("Reading request body failed: " + err.Error()),
+		}
+		return nil, nil, err
+	}
+
+	var header struct {
+		Type string `json:"type"`
+	}
+	if err := json.Unmarshal(reqBytes, &header); err != nil {
+		err := &util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: jsonerror.BadJSON("Reading request body failed: " + err.Error()),
+		}
+		return nil, nil, err
+	}
+
+	var typ Type
+	switch header.Type {
+	case authtypes.LoginTypePassword:
+		typ = &LoginTypePassword{
+			GetAccountByPassword: accountDB.GetAccountByPassword,
+			Config:               cfg,
+		}
+	case authtypes.LoginTypeToken:
+		typ = &LoginTypeToken{
+			UserAPI: userAPI,
+			Config:  cfg,
+		}
+	default:
+		err := util.JSONResponse{
+			Code: http.StatusBadRequest,
+			JSON: jsonerror.InvalidArgumentValue("unhandled login type: " + header.Type),
+		}
+		return nil, nil, &err
+	}
+
+	return typ.LoginFromJSON(ctx, reqBytes)
+}
+
+// UserInternalAPIForLogin contains the aspects of UserAPI required for logging in.
+type UserInternalAPIForLogin interface {
+	uapi.LoginTokenInternalAPI
+}

clientapi/auth/login_test.go

@@ -0,0 +1,131 @@
+// Copyright 2021 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package auth
+
+import (
+	"context"
+	"reflect"
+	"strings"
+	"testing"
+
+	"github.com/matrix-org/dendrite/clientapi/jsonerror"
+	"github.com/matrix-org/dendrite/setup/config"
+	uapi "github.com/matrix-org/dendrite/userapi/api"
+)
+
+func TestLoginFromJSONReader(t *testing.T) {
+	ctx := context.Background()
+
+	tsts := []struct {
+		Name string
+		Body string
+
+		WantErrCode       string
+		WantUsername      string
+		WantDeviceID      string
+		WantDeletedTokens []string
+	}{
+		{Name: "empty", WantErrCode: "M_BAD_JSON"},
+		{
+			Name: "passwordWorks",
+			Body: `{
+				"type": "m.login.password",
+				"identifier": { "type": "m.id.user", "user": "alice" },
+				"password": "herpassword",
+				"device_id": "adevice"
+            }`,
+			WantUsername: "alice",
+			WantDeviceID: "adevice",
+		},
+		{
+			Name: "tokenWorks",
+			Body: `{
+				"type": "m.login.token",
+				"token": "atoken",
+				"device_id": "adevice"
+            }`,
+			WantUsername:      "@auser:example.com",
+			WantDeviceID:      "adevice",
+			WantDeletedTokens: []string{"atoken"},
+		},
+	}
+	for _, tst := range tsts {
+		t.Run(tst.Name, func(t *testing.T) {
+			var accountDB fakeAccountDB
+			var userAPI fakeUserInternalAPI
+			cfg := &config.ClientAPI{
+				Matrix: &config.Global{
+					ServerName: serverName,
+				},
+			}
+			login, cleanup, errRes := LoginFromJSONReader(ctx, strings.NewReader(tst.Body), &accountDB, &userAPI, cfg)
+			if tst.WantErrCode == "" {
+				if errRes != nil {
+					t.Fatalf("LoginFromJSONReader failed: %+v", errRes)
+				}
+				cleanup(ctx, nil)
+			} else {
+				if errRes == nil {
+					t.Fatalf("LoginFromJSONReader err: got %+v, want code %q", errRes, tst.WantErrCode)
+				} else if merr, ok := errRes.JSON.(*jsonerror.MatrixError); ok && merr.ErrCode != tst.WantErrCode {
+					t.Fatalf("LoginFromJSONReader err: got %+v, want code %q", errRes, tst.WantErrCode)
+				}
+				return
+			}
+
+			if login.Username() != tst.WantUsername {
+				t.Errorf("Username: got %q, want %q", login.Username(), tst.WantUsername)
+			}
+
+			if login.DeviceID == nil {
+				if tst.WantDeviceID != "" {
+					t.Errorf("DeviceID: got %v, want %q", login.DeviceID, tst.WantDeviceID)
+				}
+			} else {
+				if *login.DeviceID != tst.WantDeviceID {
+					t.Errorf("DeviceID: got %q, want %q", *login.DeviceID, tst.WantDeviceID)
+				}
+			}
+
+			if !reflect.DeepEqual(userAPI.DeletedTokens, tst.WantDeletedTokens) {
+				t.Errorf("DeletedTokens: got %+v, want %+v", userAPI.DeletedTokens, tst.WantDeletedTokens)
+			}
+		})
+	}
+}
+
+type fakeAccountDB struct {
+	AccountDatabase
+}
+
+func (*fakeAccountDB) GetAccountByPassword(ctx context.Context, localpart, password string) (*uapi.Account, error) {
+	return &uapi.Account{}, nil
+}
+
+type fakeUserInternalAPI struct {
+	UserInternalAPIForLogin
+
+	DeletedTokens []string
+}
+
+func (ua *fakeUserInternalAPI) PerformLoginTokenDeletion(ctx context.Context, req *uapi.PerformLoginTokenDeletionRequest, res *uapi.PerformLoginTokenDeletionResponse) error {
+	ua.DeletedTokens = append(ua.DeletedTokens, req.Token)
+	return nil
+}
+
+func (*fakeUserInternalAPI) QueryLoginToken(ctx context.Context, req *uapi.QueryLoginTokenRequest, res *uapi.QueryLoginTokenResponse) error {
+	res.Data = &uapi.LoginTokenData{UserID: "@auser:example.com"}
+	return nil
+}

clientapi/auth/login_token.go

@@ -0,0 +1,84 @@
+// Copyright 2021 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package auth
+
+import (
+	"context"
+	"net/http"
+
+	"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
+	"github.com/matrix-org/dendrite/clientapi/httputil"
+	"github.com/matrix-org/dendrite/clientapi/jsonerror"
+	"github.com/matrix-org/dendrite/setup/config"
+	uapi "github.com/matrix-org/dendrite/userapi/api"
+	"github.com/matrix-org/util"
+)
+
+// LoginTypeToken describes how to authenticate with a login token.
+type LoginTypeToken struct {
+	UserAPI uapi.LoginTokenInternalAPI
+	Config  *config.ClientAPI
+}
+
+// Name implements Type.
+func (t *LoginTypeToken) Name() string {
+	return authtypes.LoginTypeToken
+}
+
+// LoginFromJSON implements Type. The cleanup function deletes the token from
+// the database on success.
+func (t *LoginTypeToken) LoginFromJSON(ctx context.Context, reqBytes []byte) (*Login, LoginCleanupFunc, *util.JSONResponse) {
+	var r loginTokenRequest
+	if err := httputil.UnmarshalJSON(reqBytes, &r); err != nil {
+		return nil, nil, err
+	}
+
+	return t.login(ctx, &r)
+}
+
+// loginTokenRequest struct to hold the possible parameters from an HTTP request.
+type loginTokenRequest struct {
+	Login
+	Token string `json:"token"`
+}
+
+// login parses and validates the login token. It returns basic user information.
+func (t *LoginTypeToken) login(ctx context.Context, r *loginTokenRequest) (*Login, LoginCleanupFunc, *util.JSONResponse) {
+	var res uapi.QueryLoginTokenResponse
+	if err := t.UserAPI.QueryLoginToken(ctx, &uapi.QueryLoginTokenRequest{Token: r.Token}, &res); err != nil {
+		util.GetLogger(ctx).WithError(err).Error("UserAPI.QueryLoginToken failed")
+		jsonErr := jsonerror.InternalServerError()
+		return nil, nil, &jsonErr
+	}
+	if res.Data == nil {
+		return nil, nil, &util.JSONResponse{
+			Code: http.StatusForbidden,
+			JSON: jsonerror.Forbidden("invalid login token"),
+		}
+	}
+
+	r.Login.Identifier.Type = "m.id.user"
+	r.Login.Identifier.User = res.Data.UserID
+
+	cleanup := func(ctx context.Context, authRes *util.JSONResponse) {
+		if authRes == nil || authRes.Code == http.StatusOK {
+			var res uapi.PerformLoginTokenDeletionResponse
+			if err := t.UserAPI.PerformLoginTokenDeletion(ctx, &uapi.PerformLoginTokenDeletionRequest{Token: r.Token}, &res); err != nil {
+				util.GetLogger(ctx).WithError(err).Error("UserAPI.PerformLoginTokenDeletion failed")
+			}
+		}
+	}
+	return &r.Login, cleanup, nil
+}

clientapi/auth/user_interactive.go

@@ -63,11 +63,8 @@ type LoginIdentifier struct {
 
 // Login represents the shared fields used in all forms of login/sudo endpoints.
 type Login struct {
-	Type       string          `json:"type"`
-	Identifier LoginIdentifier `json:"identifier"`
-	User       string          `json:"user"`    // deprecated in favour of identifier
-	Medium     string          `json:"medium"`  // deprecated in favour of identifier
-	Address    string          `json:"address"` // deprecated in favour of identifier
+	LoginIdentifier                 // Flat fields deprecated in favour of `identifier`.
+	Identifier      LoginIdentifier `json:"identifier"`
 
 	// Both DeviceID and InitialDisplayName can be omitted, or empty strings ("")
 	// Thus a pointer is needed to differentiate between the two

clientapi/routing/login.go

@@ -16,14 +16,13 @@ package routing
 
 import (
 	"context"
-	"io/ioutil"
 	"net/http"
 
 	"github.com/matrix-org/dendrite/clientapi/auth"
 	"github.com/matrix-org/dendrite/clientapi/jsonerror"
 	"github.com/matrix-org/dendrite/clientapi/userutil"
 	"github.com/matrix-org/dendrite/setup/config"
-	userapi "github.com/matrix-org/dendrite/userapi/api"
+	uapi "github.com/matrix-org/dendrite/userapi/api"
 	"github.com/matrix-org/dendrite/userapi/storage/accounts"
 	"github.com/matrix-org/gomatrixserverlib"
 	"github.com/matrix-org/util"
@@ -55,7 +54,7 @@ func passwordLogin() flows {
 
 // Login implements GET and POST /login
 func Login(
-	req *http.Request, accountDB accounts.Database, userAPI userapi.UserInternalAPI,
+	req *http.Request, accountDB accounts.Database, userAPI uapi.UserInternalAPI,
 	cfg *config.ClientAPI,
 ) util.JSONResponse {
 	if req.Method == http.MethodGet {
@@ -65,18 +64,7 @@ func Login(
 			JSON: passwordLogin(),
 		}
 	} else if req.Method == http.MethodPost {
-		typePassword := auth.LoginTypePassword{
-			GetAccountByPassword: accountDB.GetAccountByPassword,
-			Config:               cfg,
-		}
-		body, err := ioutil.ReadAll(req.Body)
-		if err != nil {
-			return util.JSONResponse{
-				Code: http.StatusBadRequest,
-				JSON: jsonerror.BadJSON("Reading request body failed: " + err.Error()),
-			}
-		}
-		login, cleanup, authErr := typePassword.LoginFromJSON(req.Context(), body)
+		login, cleanup, authErr := auth.LoginFromJSONReader(req.Context(), req.Body, accountDB, userAPI, cfg)
 		if authErr != nil {
 			return *authErr
 		}
@@ -92,7 +80,7 @@ func Login(
 }
 
 func completeAuth(
-	ctx context.Context, serverName gomatrixserverlib.ServerName, userAPI userapi.UserInternalAPI, login *auth.Login,
+	ctx context.Context, serverName gomatrixserverlib.ServerName, userAPI uapi.UserInternalAPI, login *auth.Login,
 	ipAddr, userAgent string,
 ) util.JSONResponse {
 	token, err := auth.GenerateAccessToken()
@@ -107,8 +95,8 @@ func completeAuth(
 		return jsonerror.InternalServerError()
 	}
 
-	var performRes userapi.PerformDeviceCreationResponse
-	err = userAPI.PerformDeviceCreation(ctx, &userapi.PerformDeviceCreationRequest{
+	var performRes uapi.PerformDeviceCreationResponse
+	err = userAPI.PerformDeviceCreation(ctx, &uapi.PerformDeviceCreationRequest{
 		DeviceDisplayName: login.InitialDisplayName,
 		DeviceID:          login.DeviceID,
 		AccessToken:       token,