package user
import (
"crypto/rand"
"crypto/sha256"
"encoding/hex"
"fmt"
"html"
"net/http"
"time"
auth "donetick.com/core/internal/authorization"
cModel "donetick.com/core/internal/circle/model"
cRepo "donetick.com/core/internal/circle/repo"
"donetick.com/core/internal/email"
uModel "donetick.com/core/internal/user/model"
uRepo "donetick.com/core/internal/user/repo"
"donetick.com/core/internal/utils"
"donetick.com/core/logging"
jwt "github.com/appleboy/gin-jwt/v2"
"github.com/gin-gonic/gin"
limiter "github.com/ulule/limiter/v3"
"google.golang.org/api/googleapi"
"google.golang.org/api/oauth2/v1"
)
type Handler struct {
userRepo *uRepo.UserRepository
circleRepo *cRepo.CircleRepository
jwtAuth *jwt.GinJWTMiddleware
email *email.EmailSender
}
func NewHandler(ur *uRepo.UserRepository, cr *cRepo.CircleRepository, jwtAuth *jwt.GinJWTMiddleware, email *email.EmailSender) *Handler {
return &Handler{
userRepo: ur,
circleRepo: cr,
jwtAuth: jwtAuth,
email: email,
}
}
func (h *Handler) GetAllUsers() gin.HandlerFunc {
return func(c *gin.Context) {
currentUser, ok := auth.CurrentUser(c)
if !ok {
c.JSON(500, gin.H{
"error": "Error getting current user",
})
return
}
users, err := h.userRepo.GetAllUsers(c, currentUser.CircleID)
if err != nil {
c.JSON(500, gin.H{
"error": "Error getting users",
})
return
}
c.JSON(200, gin.H{
"res": users,
})
}
}
func (h *Handler) signUp(c *gin.Context) {
type SignUpReq struct {
Username string `json:"username" binding:"required,min=4,max=20"`
Password string `json:"password" binding:"required,min=8,max=45"`
Email string `json:"email" binding:"required,email"`
DisplayName string `json:"displayName"`
}
var signupReq SignUpReq
if err := c.BindJSON(&signupReq); err != nil {
c.JSON(400, gin.H{
"error": "Invalid request",
})
return
}
if signupReq.DisplayName == "" {
signupReq.DisplayName = signupReq.Username
}
password, err := auth.EncodePassword(signupReq.Password)
signupReq.Username = html.EscapeString(signupReq.Username)
signupReq.DisplayName = html.EscapeString(signupReq.DisplayName)
if err != nil {
c.JSON(500, gin.H{
"error": "Error encoding password",
})
return
}
var insertedUser *uModel.User
if insertedUser, err = h.userRepo.CreateUser(c, &uModel.User{
Username: signupReq.Username,
Password: password,
DisplayName: signupReq.DisplayName,
Email: signupReq.Email,
CreatedAt: time.Now(),
UpdatedAt: time.Now(),
}); err != nil {
c.JSON(500, gin.H{
"error": "Error creating user",
})
return
}
// var userCircle *circle.Circle
// var userRole string
userCircle, err := h.circleRepo.CreateCircle(c, &cModel.Circle{
Name: signupReq.DisplayName + "'s circle",
CreatedAt: time.Now(),
UpdatedAt: time.Now(),
InviteCode: utils.GenerateInviteCode(c),
})
if err != nil {
c.JSON(500, gin.H{
"error": "Error creating circle",
})
return
}
if err := h.circleRepo.AddUserToCircle(c, &cModel.UserCircle{
UserID: insertedUser.ID,
CircleID: userCircle.ID,
Role: "admin",
IsActive: true,
CreatedAt: time.Now(),
UpdatedAt: time.Now(),
}); err != nil {
c.JSON(500, gin.H{
"error": "Error adding user to circle",
})
return
}
insertedUser.CircleID = userCircle.ID
if err := h.userRepo.UpdateUser(c, insertedUser); err != nil {
c.JSON(500, gin.H{
"error": "Error updating user",
})
return
}
c.JSON(201, gin.H{})
}
func (h *Handler) GetUserProfile(c *gin.Context) {
user, ok := auth.CurrentUser(c)
if !ok {
c.JSON(500, gin.H{
"error": "Error getting user",
})
return
}
c.JSON(200, gin.H{
"res": user,
})
}
func (h *Handler) thirdPartyAuthCallback(c *gin.Context) {
// read :provider from path param, if param is google check the token with google if it's valid and fetch the user details:
logger := logging.FromContext(c)
provider := c.Param("provider")
logger.Infow("account.handler.thirdPartyAuthCallback", "provider", provider)
if provider == "google" {
c.Set("auth_provider", "3rdPartyAuth")
type OAuthRequest struct {
Token string `json:"token" binding:"required"`
Provider string `json:"provider" binding:"required"`
}
var body OAuthRequest
if err := c.ShouldBindJSON(&body); err != nil {
logger.Errorw("account.handler.thirdPartyAuthCallback failed to bind", "err", err)
c.JSON(http.StatusBadRequest, gin.H{
"error": "Invalid request",
})
return
}
// logger.Infow("account.handler.thirdPartyAuthCallback", "token", token)
service, err := oauth2.New(http.DefaultClient)
// tokenInfo, err := service.Tokeninfo().AccessToken(token).Do()
userinfo, err := service.Userinfo.Get().Do(googleapi.QueryParameter("access_token", body.Token))
logger.Infow("account.handler.thirdPartyAuthCallback", "tokenInfo", userinfo)
if err != nil {
logger.Errorw("account.handler.thirdPartyAuthCallback failed to get token info", "err", err)
c.JSON(http.StatusBadRequest, gin.H{
"error": "Invalid token",
})
return
}
acc, err := h.userRepo.FindByEmail(c, userinfo.Email)
if err != nil {
// create a random password for the user using crypto/rand:
password := auth.GenerateRandomPassword(12)
encodedPassword, err := auth.EncodePassword(password)
acc = &uModel.User{
Username: userinfo.Id,
Email: userinfo.Email,
Image: userinfo.Picture,
Password: encodedPassword,
DisplayName: userinfo.GivenName,
Provider: 2,
}
createdUser, err := h.userRepo.CreateUser(c, acc)
if err != nil {
c.JSON(http.StatusInternalServerError, gin.H{
"error": "Unable to create user",
})
return
}
// Create Circle for the user:
userCircle, err := h.circleRepo.CreateCircle(c, &cModel.Circle{
Name: userinfo.GivenName + "'s circle",
CreatedAt: time.Now(),
UpdatedAt: time.Now(),
InviteCode: utils.GenerateInviteCode(c),
})
if err != nil {
c.JSON(500, gin.H{
"error": "Error creating circle",
})
return
}
if err := h.circleRepo.AddUserToCircle(c, &cModel.UserCircle{
UserID: createdUser.ID,
CircleID: userCircle.ID,
Role: "admin",
IsActive: true,
CreatedAt: time.Now(),
UpdatedAt: time.Now(),
}); err != nil {
c.JSON(500, gin.H{
"error": "Error adding user to circle",
})
return
}
createdUser.CircleID = userCircle.ID
if err := h.userRepo.UpdateUser(c, createdUser); err != nil {
c.JSON(500, gin.H{
"error": "Error updating user",
})
return
}
}
// use auth to generate a token for the user:
c.Set("user_account", acc)
h.jwtAuth.Authenticator(c)
tokenString, expire, err := h.jwtAuth.TokenGenerator(acc)
if err != nil {
logger.Errorw("Unable to Generate a Token")
c.JSON(http.StatusInternalServerError, gin.H{
"error": "Unable to Generate a Token",
})
return
}
c.JSON(http.StatusOK, gin.H{"token": tokenString, "expire": expire})
return
}
}
func (h *Handler) resetPassword(c *gin.Context) {
log := logging.FromContext(c)
type ResetPasswordReq struct {
Email string `json:"email" binding:"required,email"`
}
var req ResetPasswordReq
if err := c.ShouldBindJSON(&req); err != nil {
c.JSON(http.StatusBadRequest, gin.H{
"error": "Invalid request",
})
return
}
user, err := h.userRepo.FindByEmail(c, req.Email)
if err != nil {
c.JSON(http.StatusOK, gin.H{})
log.Error("account.handler.resetPassword failed to find user")
return
}
if user.Provider != 0 {
// user create account thought login with Gmail. they can reset the password they just need to login with google again
c.JSON(
http.StatusForbidden,
gin.H{
"error": "User account created with google login. Please login with google",
},
)
return
}
// generate a random password:
token, err := auth.GenerateEmailResetToken(c)
if err != nil {
c.JSON(http.StatusInternalServerError, gin.H{
"error": "Unable to generate token",
})
return
}
err = h.userRepo.SetPasswordResetToken(c, req.Email, token)
if err != nil {
c.JSON(http.StatusInternalServerError, gin.H{
"error": "Unable to generate password",
})
return
}
// send an email to the user with the new password:
err = h.email.SendResetPasswordEmail(c, req.Email, token)
if err != nil {
log.Errorw("account.handler.resetPassword failed to send email", "err", err)
c.JSON(http.StatusInternalServerError, gin.H{
"error": "Unable to send email",
})
return
}
// send an email to the user with the new password:
c.JSON(http.StatusOK, gin.H{})
}
func (h *Handler) updateUserPassword(c *gin.Context) {
logger := logging.FromContext(c)
// read the code from query param:
code := c.Query("c")
email, code, err := email.DecodeEmailAndCode(code)
if err != nil {
logger.Errorw("account.handler.verify failed to decode email and code", "err", err)
c.JSON(http.StatusBadRequest, gin.H{
"error": "Invalid code",
})
return
}
// read password from body:
type RequestBody struct {
Password string `json:"password" binding:"required,min=8,max=32"`
}
var body RequestBody
if err := c.ShouldBindJSON(&body); err != nil {
logger.Errorw("user.handler.resetAccountPassword failed to bind", "err", err)
c.JSON(http.StatusBadRequest, gin.H{
"error": "Invalid request",
})
return
}
password, err := auth.EncodePassword(body.Password)
if err != nil {
c.JSON(http.StatusInternalServerError, gin.H{
"error": "Unable to process password",
})
return
}
err = h.userRepo.UpdatePasswordByToken(c.Request.Context(), email, code, password)
if err != nil {
logger.Errorw("account.handler.resetAccountPassword failed to reset password", "err", err)
c.JSON(http.StatusInternalServerError, gin.H{
"error": "Unable to reset password",
})
return
}
c.JSON(http.StatusOK, gin.H{})
}
func (h *Handler) UpdateUserDetails(c *gin.Context) {
type UpdateUserReq struct {
DisplayName *string `json:"displayName" binding:"omitempty"`
ChatID *int64 `json:"chatID" binding:"omitempty"`
Image *string `json:"image" binding:"omitempty"`
}
user, ok := auth.CurrentUser(c)
if !ok {
c.JSON(500, gin.H{
"error": "Error getting user",
})
return
}
var req UpdateUserReq
if err := c.ShouldBindJSON(&req); err != nil {
c.JSON(400, gin.H{
"error": "Invalid request",
})
return
}
// update non-nil fields:
if req.DisplayName != nil {
user.DisplayName = *req.DisplayName
}
if req.ChatID != nil {
user.ChatID = *req.ChatID
}
if req.Image != nil {
user.Image = *req.Image
}
if err := h.userRepo.UpdateUser(c, user); err != nil {
c.JSON(500, gin.H{
"error": "Error updating user",
})
return
}
c.JSON(200, user)
}
func (h *Handler) CreateLongLivedToken(c *gin.Context) {
currentUser, ok := auth.CurrentUser(c)
if !ok {
c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to get current user"})
return
}
type TokenRequest struct {
Name string `json:"name" binding:"required"`
}
var req TokenRequest
if err := c.ShouldBindJSON(&req); err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid request"})
return
}
// Step 1: Generate a secure random number
randomBytes := make([]byte, 16) // 128 bits are enough for strong randomness
_, err := rand.Read(randomBytes)
if err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to generate random part of the token"})
return
}
timestamp := time.Now().Unix()
hashInput := fmt.Sprintf("%s:%d:%x", currentUser.Username, timestamp, randomBytes)
hash := sha256.Sum256([]byte(hashInput))
token := hex.EncodeToString(hash[:])
tokenModel, err := h.userRepo.StoreAPIToken(c, currentUser.ID, req.Name, token)
if err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to store the token"})
return
}
c.JSON(http.StatusOK, gin.H{"res": tokenModel})
}
func (h *Handler) GetAllUserToken(c *gin.Context) {
currentUser, ok := auth.CurrentUser(c)
if !ok {
c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to get current user"})
return
}
tokens, err := h.userRepo.GetAllUserTokens(c, currentUser.ID)
if err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to get user tokens"})
return
}
c.JSON(http.StatusOK, gin.H{"res": tokens})
}
func (h *Handler) DeleteUserToken(c *gin.Context) {
currentUser, ok := auth.CurrentUser(c)
if !ok {
c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to get current user"})
return
}
tokenID := c.Param("id")
err := h.userRepo.DeleteAPIToken(c, currentUser.ID, tokenID)
if err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to delete the token"})
return
}
c.JSON(http.StatusOK, gin.H{})
}
func Routes(router *gin.Engine, h *Handler, auth *jwt.GinJWTMiddleware, limiter *limiter.Limiter) {
userRoutes := router.Group("users")
userRoutes.Use(auth.MiddlewareFunc(), utils.RateLimitMiddleware(limiter))
{
userRoutes.GET("/", h.GetAllUsers())
userRoutes.GET("/profile", h.GetUserProfile)
userRoutes.PUT("", h.UpdateUserDetails)
userRoutes.POST("/tokens", h.CreateLongLivedToken)
userRoutes.GET("/tokens", h.GetAllUserToken)
userRoutes.DELETE("/tokens/:id", h.DeleteUserToken)
}
authRoutes := router.Group("auth")
authRoutes.Use(utils.RateLimitMiddleware(limiter))
{
authRoutes.POST("/", h.signUp)
authRoutes.POST("login", auth.LoginHandler)
authRoutes.GET("refresh", auth.RefreshHandler)
authRoutes.POST("/:provider/callback", h.thirdPartyAuthCallback)
authRoutes.POST("reset", h.resetPassword)
authRoutes.POST("password", h.updateUserPassword)
}
}
