memos/server/router/api/v1/auth_service.go
2024-09-21 18:23:30 +08:00

306 lines
10 KiB
Go

package v1
import (
"context"
"fmt"
"log/slog"
"regexp"
"strings"
"time"
"github.com/pkg/errors"
"golang.org/x/crypto/bcrypt"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/status"
"google.golang.org/protobuf/types/known/emptypb"
"github.com/usememos/memos/internal/util"
"github.com/usememos/memos/plugin/idp"
"github.com/usememos/memos/plugin/idp/oauth2"
v1pb "github.com/usememos/memos/proto/gen/api/v1"
storepb "github.com/usememos/memos/proto/gen/store"
"github.com/usememos/memos/store"
)
const (
unmatchedUsernameAndPasswordError = "unmatched username and password"
)
func (s *APIV1Service) GetAuthStatus(ctx context.Context, _ *v1pb.GetAuthStatusRequest) (*v1pb.User, error) {
user, err := s.GetCurrentUser(ctx)
if err != nil {
return nil, status.Errorf(codes.Unauthenticated, "failed to get current user: %v", err)
}
if user == nil {
// Set the cookie header to expire access token.
if err := s.clearAccessTokenCookie(ctx); err != nil {
return nil, status.Errorf(codes.Internal, "failed to set grpc header: %v", err)
}
return nil, status.Errorf(codes.Unauthenticated, "user not found")
}
return convertUserFromStore(user), nil
}
func (s *APIV1Service) SignIn(ctx context.Context, request *v1pb.SignInRequest) (*v1pb.User, error) {
user, err := s.Store.GetUser(ctx, &store.FindUser{
Username: &request.Username,
})
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get user, error: %v", err)
}
if user == nil {
return nil, status.Errorf(codes.InvalidArgument, unmatchedUsernameAndPasswordError)
}
// Compare the stored hashed password, with the hashed version of the password that was received.
if err := bcrypt.CompareHashAndPassword([]byte(user.PasswordHash), []byte(request.Password)); err != nil {
return nil, status.Errorf(codes.InvalidArgument, unmatchedUsernameAndPasswordError)
}
workspaceGeneralSetting, err := s.Store.GetWorkspaceGeneralSetting(ctx)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get workspace general setting, error: %v", err)
}
// Check if the password auth in is allowed.
if workspaceGeneralSetting.DisallowPasswordAuth && user.Role == store.RoleUser {
return nil, status.Errorf(codes.PermissionDenied, "password signin is not allowed")
}
if user.RowStatus == store.Archived {
return nil, status.Errorf(codes.PermissionDenied, "user has been archived with username %s", request.Username)
}
expireTime := time.Now().Add(AccessTokenDuration)
if request.NeverExpire {
// Set the expire time to 100 years.
expireTime = time.Now().Add(100 * 365 * 24 * time.Hour)
}
if err := s.doSignIn(ctx, user, expireTime); err != nil {
return nil, status.Errorf(codes.Internal, "failed to sign in, error: %v", err)
}
return convertUserFromStore(user), nil
}
func (s *APIV1Service) SignInWithSSO(ctx context.Context, request *v1pb.SignInWithSSORequest) (*v1pb.User, error) {
identityProvider, err := s.Store.GetIdentityProvider(ctx, &store.FindIdentityProvider{
ID: &request.IdpId,
})
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get identity provider, error: %v", err)
}
if identityProvider == nil {
return nil, status.Errorf(codes.InvalidArgument, "identity provider not found")
}
var userInfo *idp.IdentityProviderUserInfo
if identityProvider.Type == storepb.IdentityProvider_OAUTH2 {
oauth2IdentityProvider, err := oauth2.NewIdentityProvider(identityProvider.Config.GetOauth2Config())
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to create oauth2 identity provider, error: %v", err)
}
token, err := oauth2IdentityProvider.ExchangeToken(ctx, request.RedirectUri, request.Code)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to exchange token, error: %v", err)
}
userInfo, err = oauth2IdentityProvider.UserInfo(token)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get user info, error: %v", err)
}
}
identifierFilter := identityProvider.IdentifierFilter
if identifierFilter != "" {
identifierFilterRegex, err := regexp.Compile(identifierFilter)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to compile identifier filter regex, error: %v", err)
}
if !identifierFilterRegex.MatchString(userInfo.Identifier) {
return nil, status.Errorf(codes.PermissionDenied, "identifier %s does not match the filter %s", userInfo.Identifier, identifierFilter)
}
}
user, err := s.Store.GetUser(ctx, &store.FindUser{
Username: &userInfo.Identifier,
})
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get user, error: %v", err)
}
if user == nil {
userCreate := &store.User{
Username: userInfo.Identifier,
// The new signup user should be normal user by default.
Role: store.RoleUser,
Nickname: userInfo.DisplayName,
Email: userInfo.Email,
}
password, err := util.RandomString(20)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to generate random password, error: %v", err)
}
passwordHash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to generate password hash, error: %v", err)
}
userCreate.PasswordHash = string(passwordHash)
user, err = s.Store.CreateUser(ctx, userCreate)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to create user, error: %v", err)
}
}
if user.RowStatus == store.Archived {
return nil, status.Errorf(codes.PermissionDenied, "user has been archived with username %s", userInfo.Identifier)
}
if err := s.doSignIn(ctx, user, time.Now().Add(AccessTokenDuration)); err != nil {
return nil, status.Errorf(codes.Internal, "failed to sign in, error: %v", err)
}
return convertUserFromStore(user), nil
}
func (s *APIV1Service) doSignIn(ctx context.Context, user *store.User, expireTime time.Time) error {
accessToken, err := GenerateAccessToken(user.Email, user.ID, expireTime, []byte(s.Secret))
if err != nil {
return status.Errorf(codes.Internal, "failed to generate access token, error: %v", err)
}
if err := s.UpsertAccessTokenToStore(ctx, user, accessToken, "user login"); err != nil {
return status.Errorf(codes.Internal, "failed to upsert access token to store, error: %v", err)
}
cookie, err := s.buildAccessTokenCookie(ctx, accessToken, expireTime)
if err != nil {
return status.Errorf(codes.Internal, "failed to build access token cookie, error: %v", err)
}
if err := grpc.SetHeader(ctx, metadata.New(map[string]string{
"Set-Cookie": cookie,
})); err != nil {
return status.Errorf(codes.Internal, "failed to set grpc header, error: %v", err)
}
return nil
}
func (s *APIV1Service) SignUp(ctx context.Context, request *v1pb.SignUpRequest) (*v1pb.User, error) {
workspaceGeneralSetting, err := s.Store.GetWorkspaceGeneralSetting(ctx)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get workspace general setting, error: %v", err)
}
if workspaceGeneralSetting.DisallowUserRegistration {
return nil, status.Errorf(codes.PermissionDenied, "sign up is not allowed")
}
passwordHash, err := bcrypt.GenerateFromPassword([]byte(request.Password), bcrypt.DefaultCost)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to generate password hash, error: %v", err)
}
create := &store.User{
Username: request.Username,
Nickname: request.Username,
PasswordHash: string(passwordHash),
}
if !util.UIDMatcher.MatchString(strings.ToLower(create.Username)) {
return nil, status.Errorf(codes.InvalidArgument, "invalid username: %s", create.Username)
}
hostUserType := store.RoleHost
existedHostUsers, err := s.Store.ListUsers(ctx, &store.FindUser{
Role: &hostUserType,
})
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to list host users, error: %v", err)
}
if len(existedHostUsers) == 0 {
// Change the default role to host if there is no host user.
create.Role = store.RoleHost
} else {
create.Role = store.RoleUser
}
user, err := s.Store.CreateUser(ctx, create)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to create user, error: %v", err)
}
if err := s.doSignIn(ctx, user, time.Now().Add(AccessTokenDuration)); err != nil {
return nil, status.Errorf(codes.Internal, "failed to sign in, error: %v", err)
}
return convertUserFromStore(user), nil
}
func (s *APIV1Service) SignOut(ctx context.Context, _ *v1pb.SignOutRequest) (*emptypb.Empty, error) {
accessToken, ok := ctx.Value(accessTokenContextKey).(string)
// Try to delete the access token from the store.
if ok {
user, _ := s.GetCurrentUser(ctx)
if user != nil {
if _, err := s.DeleteUserAccessToken(ctx, &v1pb.DeleteUserAccessTokenRequest{
Name: fmt.Sprintf("%s%d", UserNamePrefix, user.ID),
AccessToken: accessToken,
}); err != nil {
slog.Error("failed to delete access token", "error", err)
}
}
}
if err := s.clearAccessTokenCookie(ctx); err != nil {
return nil, status.Errorf(codes.Internal, "failed to set grpc header, error: %v", err)
}
return &emptypb.Empty{}, nil
}
func (s *APIV1Service) clearAccessTokenCookie(ctx context.Context) error {
cookie, err := s.buildAccessTokenCookie(ctx, "", time.Time{})
if err != nil {
return errors.Wrap(err, "failed to build access token cookie")
}
if err := grpc.SetHeader(ctx, metadata.New(map[string]string{
"Set-Cookie": cookie,
})); err != nil {
return errors.Wrap(err, "failed to set grpc header")
}
return nil
}
func (*APIV1Service) buildAccessTokenCookie(ctx context.Context, accessToken string, expireTime time.Time) (string, error) {
attrs := []string{
fmt.Sprintf("%s=%s", AccessTokenCookieName, accessToken),
"Path=/",
"HttpOnly",
}
if expireTime.IsZero() {
attrs = append(attrs, "Expires=Thu, 01 Jan 1970 00:00:00 GMT")
} else {
attrs = append(attrs, "Expires="+expireTime.Format(time.RFC1123))
}
md, ok := metadata.FromIncomingContext(ctx)
if !ok {
return "", errors.New("failed to get metadata from context")
}
var origin string
for _, v := range md.Get("origin") {
origin = v
}
isHTTPS := strings.HasPrefix(origin, "https://")
if isHTTPS {
attrs = append(attrs, "SameSite=None")
attrs = append(attrs, "Secure")
} else {
attrs = append(attrs, "SameSite=Strict")
}
return strings.Join(attrs, "; "), nil
}
func (s *APIV1Service) GetCurrentUser(ctx context.Context) (*store.User, error) {
username, ok := ctx.Value(usernameContextKey).(string)
if !ok {
return nil, nil
}
user, err := s.Store.GetUser(ctx, &store.FindUser{
Username: &username,
})
if err != nil {
return nil, err
}
return user, nil
}