feat: add user api handler

This commit is contained in:
Fritz Heiden 2025-03-13 19:04:24 +01:00
parent 947ff566d1
commit ca5b14fc13
3 changed files with 336 additions and 0 deletions

View File

@ -42,6 +42,14 @@ func main() {
webServer.Initialize()
defer webServer.Close()
authenticator := server.Authenticator{}
authenticator.SetUserManager(&userManager)
userApiHandler := server.UsersApiHandler{}
userApiHandler.SetUserManager(&userManager)
userApiHandler.SetRouter(webServer.Router())
userApiHandler.Initialize(&authenticator)
var wg sync.WaitGroup
wg.Add(1)
go func() {

66
server/authenticator.go Normal file
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@ -0,0 +1,66 @@
package server
import (
"fmt"
d "playback-device-server/data"
m "playback-device-server/management"
"strings"
"github.com/labstack/echo/v4"
"github.com/rs/zerolog/log"
)
type AuthContext struct {
echo.Context
User *d.User
Session *d.Session
}
type Authenticator struct {
userManager *m.UserManager
}
func (r *Authenticator) SetUserManager(userManager *m.UserManager) {
r.userManager = userManager
}
func (r *Authenticator) Authenticate(path string, exceptions []string) func(next echo.HandlerFunc) echo.HandlerFunc {
return func(next echo.HandlerFunc) echo.HandlerFunc {
return func(context echo.Context) error {
requestURI := context.Request().RequestURI
if !strings.HasPrefix(requestURI, path) {
return next(context)
}
for _, exception := range exceptions {
if strings.HasPrefix(requestURI, exception) {
return next(context)
}
}
cookie, err := context.Cookie("token")
if err != nil {
SendError(401, context, "no session token found")
return err
}
session, error := r.userManager.GetSession(cookie.Value)
if error != nil {
SendError(401, context, fmt.Sprintf("session not found: %s", cookie.Value))
return fmt.Errorf("session not found: %s", cookie.Value)
}
user, error := r.userManager.GetUserById(session.UserID)
if error != nil {
log.Error().Err(error).Msg("error getting user by id")
SendError(401, context, "no user found for given session")
return error
}
if user == nil {
SendError(401, context, "no user found for given session")
return fmt.Errorf("no user found for session '%s'", cookie.Value)
}
authContext := AuthContext{Context: context, User: user, Session: session}
return next(authContext)
}
}
}

262
server/user_api_handler.go Normal file
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@ -0,0 +1,262 @@
package server
import (
"fmt"
"net/http"
d "playback-device-server/data"
m "playback-device-server/management"
"github.com/labstack/echo/v4"
"github.com/rs/zerolog/log"
)
type UsersApiHandler struct {
router *echo.Echo
userManager *m.UserManager
}
func (r *UsersApiHandler) Initialize(authenticator *Authenticator) {
r.router.Use(authenticator.Authenticate("/api/users", []string{"/api/users/login"}))
usersApi := r.router.Group("/api/users")
usersApi.POST("/login", r.handleLogin)
usersApi.POST("/logout", r.handleLogout)
usersApi.GET("/session/info", r.handleGetSessionInfo)
usersApi.POST("/newpassword", r.handleChangePassword)
usersApi.PUT("/:id", r.handleUpdateConfig)
usersApi.GET("", r.handleGetUsers)
usersApi.POST("", r.handleCreateUser)
usersApi.DELETE("/:id", r.handleDeleteUser)
}
func (r UsersApiHandler) handleLogin(context echo.Context) error {
var loginData struct {
Username string `json:"username"`
Password string `json:"password"`
}
var errorResponse struct {
Error string `json:"error"`
}
error := context.Bind(&loginData)
if error != nil {
log.Info().Msgf("failed to bind login data: %s", error)
errorResponse.Error = fmt.Sprintf("%s", error)
context.JSON(400, errorResponse)
return error
}
token, error := r.userManager.Login(loginData.Username, loginData.Password)
if error != nil {
log.Info().Msgf("failed to login: %s", error)
errorResponse.Error = fmt.Sprintf("%s", error)
context.JSON(400, errorResponse)
return error
}
thirdyDays := 30 * 24 * 60 * 60
cookie := &http.Cookie{
Name: "token",
Value: token,
Path: "/",
HttpOnly: true,
MaxAge: thirdyDays,
}
context.SetCookie(cookie)
return context.JSON(200, "")
}
func (r UsersApiHandler) handleLogout(context echo.Context) error {
r.removeTokenCookie(&context)
context.JSON(200, "")
authContext := context.(AuthContext)
session := authContext.Session
r.userManager.DeleteSession(session.Token)
return nil
}
func (r UsersApiHandler) handleChangePassword(context echo.Context) error {
authContext := context.(AuthContext)
user := authContext.User
var data struct {
CurrentPassword string `json:"currentPassword"`
NewPassword string `json:"newPassword"`
}
error := context.Bind(&data)
if error != nil {
SendError(500, context, fmt.Sprintf("Failed to change password: %s", error))
return error
}
error = r.userManager.UpdatePassword(data.CurrentPassword, data.NewPassword, user)
if error != nil {
SendError(500, context, fmt.Sprintf("Failed to change password: %s", error))
}
return error
}
func (r UsersApiHandler) handleGetSessionInfo(context echo.Context) error {
authContext := context.(AuthContext)
user := authContext.User
response := struct {
UserId string `json:"user_id"`
Username string `json:"username"`
IsAdmin bool `json:"is_admin"`
}{
UserId: user.ID,
Username: user.Username,
IsAdmin: user.IsAdmin,
}
return context.JSON(200, response)
}
func (r UsersApiHandler) handleGetUsers(context echo.Context) error {
users, error := r.userManager.GetUsers()
if error != nil {
SendError(500, context, fmt.Sprintf("failed to get user list: %s", error))
}
return context.JSON(200, users)
}
func (r UsersApiHandler) handleCreateUser(context echo.Context) error {
authContext := context.(AuthContext)
user := authContext.User
if !user.IsAdmin {
SendError(403, context, "permission denied")
log.Info().Msg("failed to delete user: permission denied")
return fmt.Errorf("permission denied")
}
var newUser d.User
error := context.Bind(&newUser)
if error != nil {
SendError(500, context, fmt.Sprintf("Failed to create user: %s", error))
return error
}
id, error := r.userManager.CreateUser(&newUser)
if error != nil {
SendError(500, context, fmt.Sprintf("Failed to create user: %s", error))
return error
}
user.ID = id
return context.JSON(200, user)
}
func (r UsersApiHandler) handleDeleteUser(context echo.Context) error {
authContext := context.(AuthContext)
user := authContext.User
if !user.IsAdmin {
SendError(403, context, "permission denied")
log.Info().Msg("failed to delete user: permission denied")
return fmt.Errorf("permission denied")
}
id := context.Param("id")
exists, error := r.userManager.UserIdExists(id)
if error != nil {
SendError(500, context, fmt.Sprintf("Failed to delete user: %s", error))
return error
}
if !exists {
SendError(404, context, fmt.Sprintf("Failed to delete user: Could not find user id %s", id))
return fmt.Errorf("not found")
}
error = r.userManager.DeleteUser(id)
if error != nil {
SendError(500, context, fmt.Sprintf("Failed to delete user: %s", error))
return error
}
return context.JSON(200, "")
}
func (r *UsersApiHandler) removeTokenCookie(context *echo.Context) {
cookie := &http.Cookie{
Name: "token",
Path: "/",
HttpOnly: true,
MaxAge: -1,
}
(*context).SetCookie(cookie)
}
func (r *UsersApiHandler) handleUpdateConfig(context echo.Context) error {
authContext := context.(AuthContext)
user := authContext.User
if !user.IsAdmin {
SendError(403, context, "permission denied")
log.Info().Msg("failed to delete user: permission denied")
return fmt.Errorf("permission denied")
}
id := context.Param("id")
data := struct {
IsAdmin int `json:"is_admin"`
}{
IsAdmin: -1,
}
error := context.Bind(&data)
if error != nil {
SendError(500, context, fmt.Sprintf("Failed to update user config: %s", error))
return error
}
updatingUser, error := r.userManager.GetUserById(id)
if error != nil {
SendError(500, context, fmt.Sprintf("Failed to update user config: %s", error))
return error
}
if user.ID != id && data.IsAdmin != -1 {
updatingUser.IsAdmin = data.IsAdmin == 1
}
error = r.userManager.UpdateUser(updatingUser)
if error != nil {
SendError(500, context, fmt.Sprintf("Failed to update user config: %s", error))
return error
}
return context.JSON(200, updatingUser)
}
func (r *UsersApiHandler) SetRouter(router *echo.Echo) {
r.router = router
}
func (r *UsersApiHandler) SetUserManager(userManager *m.UserManager) {
r.userManager = userManager
}