memos/server/auth.go

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package server
import (
"encoding/json"
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"fmt"
"net/http"
"regexp"
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"github.com/pkg/errors"
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"github.com/usememos/memos/api"
"github.com/usememos/memos/common"
"github.com/usememos/memos/plugin/idp"
"github.com/usememos/memos/plugin/idp/oauth2"
"github.com/usememos/memos/store"
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"github.com/labstack/echo/v4"
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"golang.org/x/crypto/bcrypt"
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)
func (s *Server) registerAuthRoutes(g *echo.Group) {
g.POST("/auth/signin", func(c echo.Context) error {
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ctx := c.Request().Context()
signin := &api.SignIn{}
if err := json.NewDecoder(c.Request().Body).Decode(signin); err != nil {
return echo.NewHTTPError(http.StatusBadRequest, "Malformatted signin request").SetInternal(err)
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}
userFind := &api.UserFind{
Username: &signin.Username,
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}
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user, err := s.Store.FindUser(ctx, userFind)
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if err != nil && common.ErrorCode(err) != common.NotFound {
return echo.NewHTTPError(http.StatusInternalServerError, "Incorrect login credentials, please try again")
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}
if user == nil {
return echo.NewHTTPError(http.StatusUnauthorized, "Incorrect login credentials, please try again")
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} else if user.RowStatus == api.Archived {
return echo.NewHTTPError(http.StatusForbidden, fmt.Sprintf("User has been archived with username %s", signin.Username))
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}
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// Compare the stored hashed password, with the hashed version of the password that was received.
if err := bcrypt.CompareHashAndPassword([]byte(user.PasswordHash), []byte(signin.Password)); err != nil {
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// If the two passwords don't match, return a 401 status.
return echo.NewHTTPError(http.StatusUnauthorized, "Incorrect login credentials, please try again")
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}
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if err = setUserSession(c, user); err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to set signin session").SetInternal(err)
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}
if err := s.createUserAuthSignInActivity(c, user); err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to create activity").SetInternal(err)
}
return c.JSON(http.StatusOK, composeResponse(user))
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})
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g.POST("/auth/signin/sso", func(c echo.Context) error {
ctx := c.Request().Context()
signin := &api.SSOSignIn{}
if err := json.NewDecoder(c.Request().Body).Decode(signin); err != nil {
return echo.NewHTTPError(http.StatusBadRequest, "Malformatted signin request").SetInternal(err)
}
identityProviderMessage, err := s.Store.GetIdentityProvider(ctx, &store.FindIdentityProviderMessage{
ID: &signin.IdentityProviderID,
})
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to find identity provider").SetInternal(err)
}
var userInfo *idp.IdentityProviderUserInfo
if identityProviderMessage.Type == store.IdentityProviderOAuth2 {
oauth2IdentityProvider, err := oauth2.NewIdentityProvider(identityProviderMessage.Config.OAuth2Config)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to create identity provider instance").SetInternal(err)
}
token, err := oauth2IdentityProvider.ExchangeToken(ctx, signin.RedirectURI, signin.Code)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to exchange token").SetInternal(err)
}
userInfo, err = oauth2IdentityProvider.UserInfo(token)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to get user info").SetInternal(err)
}
}
identifierFilter := identityProviderMessage.IdentifierFilter
if identifierFilter != "" {
identifierFilterRegex, err := regexp.Compile(identifierFilter)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to compile identifier filter").SetInternal(err)
}
if !identifierFilterRegex.MatchString(userInfo.Identifier) {
return echo.NewHTTPError(http.StatusUnauthorized, "Access denied, identifier does not match the filter.").SetInternal(err)
}
}
user, err := s.Store.FindUser(ctx, &api.UserFind{
Username: &userInfo.Identifier,
})
if err != nil && common.ErrorCode(err) != common.NotFound {
return echo.NewHTTPError(http.StatusInternalServerError, "Incorrect login credentials, please try again")
}
if user == nil {
userCreate := &api.UserCreate{
Username: userInfo.Identifier,
// The new signup user should be normal user by default.
Role: api.NormalUser,
Nickname: userInfo.DisplayName,
Email: userInfo.Email,
Password: userInfo.Email,
OpenID: common.GenUUID(),
}
password, err := common.RandomString(20)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to generate random password").SetInternal(err)
}
passwordHash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to generate password hash").SetInternal(err)
}
userCreate.PasswordHash = string(passwordHash)
user, err = s.Store.CreateUser(ctx, userCreate)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to create user").SetInternal(err)
}
}
if user.RowStatus == api.Archived {
return echo.NewHTTPError(http.StatusForbidden, fmt.Sprintf("User has been archived with username %s", userInfo.Identifier))
}
if err = setUserSession(c, user); err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to set signin session").SetInternal(err)
}
if err := s.createUserAuthSignInActivity(c, user); err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to create activity").SetInternal(err)
}
return c.JSON(http.StatusOK, composeResponse(user))
})
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g.POST("/auth/signup", func(c echo.Context) error {
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ctx := c.Request().Context()
signup := &api.SignUp{}
if err := json.NewDecoder(c.Request().Body).Decode(signup); err != nil {
return echo.NewHTTPError(http.StatusBadRequest, "Malformatted signup request").SetInternal(err)
}
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userCreate := &api.UserCreate{
Username: signup.Username,
// The new signup user should be normal user by default.
Role: api.NormalUser,
Nickname: signup.Username,
Password: signup.Password,
OpenID: common.GenUUID(),
}
hostUserType := api.Host
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existedHostUsers, err := s.Store.FindUserList(ctx, &api.UserFind{
Role: &hostUserType,
})
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if err != nil {
return echo.NewHTTPError(http.StatusBadRequest, "Failed to find users").SetInternal(err)
}
if len(existedHostUsers) == 0 {
// Change the default role to host if there is no host user.
userCreate.Role = api.Host
} else {
allowSignUpSetting, err := s.Store.FindSystemSetting(ctx, &api.SystemSettingFind{
Name: api.SystemSettingAllowSignUpName,
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})
if err != nil && common.ErrorCode(err) != common.NotFound {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to find system setting").SetInternal(err)
}
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allowSignUpSettingValue := false
if allowSignUpSetting != nil {
err = json.Unmarshal([]byte(allowSignUpSetting.Value), &allowSignUpSettingValue)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to unmarshal system setting allow signup").SetInternal(err)
}
}
if !allowSignUpSettingValue {
return echo.NewHTTPError(http.StatusUnauthorized, "signup is disabled").SetInternal(err)
}
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}
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if err := userCreate.Validate(); err != nil {
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return echo.NewHTTPError(http.StatusBadRequest, "Invalid user create format").SetInternal(err)
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}
passwordHash, err := bcrypt.GenerateFromPassword([]byte(signup.Password), bcrypt.DefaultCost)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to generate password hash").SetInternal(err)
}
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userCreate.PasswordHash = string(passwordHash)
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user, err := s.Store.CreateUser(ctx, userCreate)
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if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to create user").SetInternal(err)
}
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if err := s.createUserAuthSignUpActivity(c, user); err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to create activity").SetInternal(err)
}
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err = setUserSession(c, user)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to set signup session").SetInternal(err)
}
return c.JSON(http.StatusOK, composeResponse(user))
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})
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g.POST("/auth/signout", func(c echo.Context) error {
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err := removeUserSession(c)
if err != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Failed to set sign out session").SetInternal(err)
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}
return c.JSON(http.StatusOK, true)
})
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}
func (s *Server) createUserAuthSignInActivity(c echo.Context, user *api.User) error {
ctx := c.Request().Context()
payload := api.ActivityUserAuthSignInPayload{
UserID: user.ID,
IP: echo.ExtractIPFromRealIPHeader()(c.Request()),
}
payloadBytes, err := json.Marshal(payload)
if err != nil {
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return errors.Wrap(err, "failed to marshal activity payload")
}
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activity, err := s.Store.CreateActivity(ctx, &api.ActivityCreate{
CreatorID: user.ID,
Type: api.ActivityUserAuthSignIn,
Level: api.ActivityInfo,
Payload: string(payloadBytes),
})
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if err != nil || activity == nil {
return errors.Wrap(err, "failed to create activity")
}
return err
}
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func (s *Server) createUserAuthSignUpActivity(c echo.Context, user *api.User) error {
ctx := c.Request().Context()
payload := api.ActivityUserAuthSignUpPayload{
Username: user.Username,
IP: echo.ExtractIPFromRealIPHeader()(c.Request()),
}
payloadBytes, err := json.Marshal(payload)
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if err != nil {
return errors.Wrap(err, "failed to marshal activity payload")
}
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activity, err := s.Store.CreateActivity(ctx, &api.ActivityCreate{
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CreatorID: user.ID,
Type: api.ActivityUserAuthSignUp,
Level: api.ActivityInfo,
Payload: string(payloadBytes),
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})
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if err != nil || activity == nil {
return errors.Wrap(err, "failed to create activity")
}
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return err
}