493 lines
13 KiB
Go
493 lines
13 KiB
Go
package users
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import (
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"crypto/rand"
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"encoding/hex"
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"io"
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"net/http"
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"time"
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"golang.org/x/crypto/bcrypt"
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"git.andr3h3nriqu3s.com/andr3/fyp/logic/db"
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. "git.andr3h3nriqu3s.com/andr3/fyp/logic/db_types"
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dbtypes "git.andr3h3nriqu3s.com/andr3/fyp/logic/db_types"
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. "git.andr3h3nriqu3s.com/andr3/fyp/logic/models"
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. "git.andr3h3nriqu3s.com/andr3/fyp/logic/tasks/utils"
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. "git.andr3h3nriqu3s.com/andr3/fyp/logic/utils"
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)
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func generateSalt() string {
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salt := make([]byte, 4)
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_, err := io.ReadFull(rand.Reader, salt)
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if err != nil {
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panic("TODO handle this better")
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}
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return hex.EncodeToString(salt)
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}
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func hashPassword(password string, salt string) (string, error) {
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bytes_salt, err := hex.DecodeString(salt)
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if err != nil {
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return "", err
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}
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bytes, err := bcrypt.GenerateFromPassword(append([]byte(password), bytes_salt...), 14)
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return string(bytes), err
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}
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func genToken() string {
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token := make([]byte, 60)
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_, err := io.ReadFull(rand.Reader, token)
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if err != nil {
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panic("TODO handle this better")
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}
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return hex.EncodeToString(token)
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}
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func deleteToken(db db.Db, userId string, time time.Time) (err error) {
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_, err = db.Exec("delete from tokens where emit_day=$1 and user_id=$2", time, userId)
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return
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}
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func generateToken(db db.Db, email string, password string, name string) (string, bool) {
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row, err := db.Query("select id, salt, password from users where email = $1;", email)
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if err != nil || !row.Next() {
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return "", false
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}
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var db_id string
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var db_salt string
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var db_password string
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err = row.Scan(&db_id, &db_salt, &db_password)
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if err != nil {
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return "", false
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}
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bytes_salt, err := hex.DecodeString(db_salt)
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if err != nil {
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panic("TODO handle better! Somethign is wrong with salt being stored in the database")
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}
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if err = bcrypt.CompareHashAndPassword([]byte(db_password), append([]byte(password), bytes_salt...)); err != nil {
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return "", false
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}
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token := genToken()
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_, err = db.Exec("insert into tokens (user_id, token, name) values ($1, $2, $3);", db_id, token, name)
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if err != nil {
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return "", false
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}
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return token, true
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}
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func DeleteUser(base BasePack, task Task) (err error) {
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ids, err := GetDbMultitple[JustId](base.GetDb(), "models where user_id=$1;", task.ExtraTaskInfo)
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if err != nil {
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task.UpdateStatusLog(base, TASK_FAILED_RUNNING, "Could not get models list")
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return
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}
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for i := range ids {
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err = DeleteModel(base, ids[i].Id)
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if err != nil {
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base.GetLogger().Error("Could not delete model", "err", err)
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}
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}
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_, err = base.GetDb().Exec("delete from users where id=$1", task.ExtraTaskInfo)
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if err != nil {
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task.UpdateStatusLog(base, TASK_FAILED_RUNNING, "Could not delete user")
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return
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}
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task.UpdateStatusLog(base, TASK_DONE, "User deleted with success")
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return
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}
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func UsersEndpints(db db.Db, handle *Handle) {
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type UserLogin struct {
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Email string `json:"email"`
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Password string `json:"password"`
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}
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PostAuthJson(handle, "/login", dbtypes.User_Not_Auth, func(c *Context, dat *UserLogin) *Error {
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// TODO Give this to the generateToken function
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token, login := generateToken(db, dat.Email, dat.Password, "Logged in user")
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if !login {
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return c.SendJSONStatus(http.StatusUnauthorized, "Email or password are incorrect")
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}
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user, err := dbtypes.UserFromToken(c.Db, token)
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if err != nil {
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return c.E500M("Failed to get user from token", err)
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}
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if user.UserType == int(User_Deleted) {
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return c.JsonBadRequest("Your user is in the process of being deleted!")
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}
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type UserReturn struct {
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Token string `json:"token"`
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Id string `json:"id"`
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UserType int `json:"user_type"`
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Username string `json:"username"`
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Email string `json:"email"`
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}
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userReturn := UserReturn{
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Token: token,
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Id: user.Id,
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UserType: user.UserType,
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Username: user.Username,
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Email: user.Email,
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}
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return c.SendJSON(userReturn)
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})
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type UserRegister struct {
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Username string `json:"username" validate:"required"`
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Email string `json:"email" validate:"required"`
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Password string `json:"password" validate:"required"`
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}
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PostAuthJson(handle, "/register", dbtypes.User_Not_Auth, func(c *Context, dat *UserRegister) *Error {
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var prevUser struct {
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Username string
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Email string
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}
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err := GetDBOnce(c, &prevUser, "users where username=$1 or email=$2;", dat.Username, dat.Email)
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if err == NotFoundError {
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// Do nothing the user does not exist and it's ok to create a new one
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} else if err != nil {
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return c.E500M("Falied to get user data", err)
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} else {
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if prevUser.Email == dat.Email {
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return c.SendJSONStatus(http.StatusBadRequest, "Email already in use!")
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}
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if prevUser.Username == dat.Username {
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return c.SendJSONStatus(http.StatusBadRequest, "Username already in use!")
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}
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}
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if len([]byte(dat.Password)) > 68 {
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return c.JsonBadRequest("Password is to long!")
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}
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salt := generateSalt()
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hash_password, err := hashPassword(dat.Password, salt)
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if err != nil {
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return c.E500M("Falied to store password", err)
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}
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_, err = db.Exec("insert into users (username, email, salt, password) values ($1, $2, $3, $4);", dat.Username, dat.Email, salt, hash_password)
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if err != nil {
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return c.E500M("Falied to create user", err)
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}
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// TODO Give this to the generateToken function
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token, login := generateToken(db, dat.Email, dat.Password, "User Login")
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if !login {
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return c.SendJSONStatus(500, "Could not login after creatting account please try again later")
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}
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user, err := dbtypes.UserFromToken(c.Db, token)
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if err != nil {
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return c.E500M("Falied to create user", err)
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}
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type UserReturn struct {
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Token string `json:"token"`
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Id string `json:"id"`
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UserType int `json:"user_type"`
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Username string `json:"username"`
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Email string `json:"email"`
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}
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userReturn := UserReturn{
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Token: token,
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Id: user.Id,
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UserType: user.UserType,
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Username: user.Username,
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Email: user.Email,
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}
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return c.SendJSON(userReturn)
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})
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// TODO allow admin users to update this data
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handle.GetAuth("/user/info", dbtypes.User_Normal, func(c *Context) *Error {
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user, err := dbtypes.UserFromToken(c.Db, *c.Token)
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if err != nil {
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return c.E500M("Falied to get user data", err)
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}
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type UserReturn struct {
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Id string `json:"id"`
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UserType int `json:"user_type"`
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Username string `json:"username"`
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Email string `json:"email"`
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}
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userReturn := UserReturn{
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Id: user.Id,
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UserType: user.UserType,
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Username: user.Username,
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Email: user.Email,
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}
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return c.SendJSON(userReturn)
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})
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// Handles updating users
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type UpdateUserData struct {
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Id string `json:"id"`
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Email string `json:"email"`
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}
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PostAuthJson(handle, "/user/info", dbtypes.User_Normal, func(c *Context, dat *UpdateUserData) *Error {
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if dat.Id != c.User.Id && c.User.UserType != int(dbtypes.User_Admin) {
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return c.SendJSONStatus(403, "You need to be an admin to update another users account")
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}
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if dat.Id != c.User.Id {
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var data struct {
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Id string
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}
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err := GetDBOnce(c, &data, "users where id=$1", dat.Id)
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if err == NotFoundError {
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return c.JsonBadRequest("User does not exist")
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} else if err != nil {
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return c.E500M("Falied to get data for user", err)
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}
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}
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var data JustId
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err := GetDBOnce(c, &data, "users where email=$1", dat.Email)
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if err != nil && err != NotFoundError {
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return c.E500M("Falied to get data for user", err)
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}
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if err != NotFoundError {
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if data.Id == dat.Id {
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return c.JsonBadRequest("Email is the name as the previous one!")
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} else {
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return c.JsonBadRequest("Email already in use")
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}
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}
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_, err = c.Db.Exec("update users set email=$2 where id=$1", dat.Id, dat.Email)
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if err != nil {
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return c.E500M("Failed to update data", err)
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}
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var user struct {
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Id string
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Username string
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Email string
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User_Type int
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}
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err = GetDBOnce(c, &user, "users where id=$1", dat.Id)
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if err != nil {
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return c.E500M("Failed to get user data", err)
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}
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toReturnUser := dbtypes.User{
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Id: user.Id,
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Username: user.Username,
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Email: user.Email,
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UserType: user.User_Type,
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}
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return c.SendJSON(toReturnUser)
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})
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type PasswordUpdate struct {
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Old_Password string `json:"old_password" validate:"required"`
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Password string `json:"password" validate:"required"`
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Password2 string `json:"password2" validate:"required"`
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}
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PostAuthJson(handle, "/user/info/password", dbtypes.User_Normal, func(c *Context, dat *PasswordUpdate) *Error {
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if dat.Password != dat.Password2 {
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return c.JsonBadRequest("New passwords did not match")
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}
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// TODO remote token
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_, login := generateToken(db, c.User.Email, dat.Old_Password, "Update password Token")
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if !login {
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return c.JsonBadRequest("Password is incorrect")
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}
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salt := generateSalt()
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hash_password, err := hashPassword(dat.Password, salt)
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if err != nil {
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return c.E500M("Failed to parse the password", err)
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}
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_, err = db.Exec("update users set salt=$1, password=$2 where id=$3", salt, hash_password, c.User.Id)
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if err != nil {
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return c.E500M("Failed to update password", err)
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}
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return c.SendJSON(c.User.Id)
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})
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type TokenList struct {
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Id string `json:"id"`
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Page int `json:"page"`
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}
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PostAuthJson[TokenList](handle, "/user/token/list", 1, func(c *Context, obj *TokenList) *Error {
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if obj.Id == "" {
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obj.Id = c.User.Id
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}
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if obj.Id != c.User.Id && c.User.UserType < int(dbtypes.User_Admin) {
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return c.JsonBadRequest("Could not find user tokens")
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}
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type Token struct {
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CreationDate time.Time `json:"create_date" db:"emit_day"`
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TimeToLive int `json:"time_to_live" db:"time_to_live"`
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Name string `json:"name"`
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}
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tokens, err := GetDbMultitple[Token](c, "tokens where user_id=$1 order by emit_day desc limit 11 offset $2;", obj.Id, 10*obj.Page)
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if err != nil {
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return c.E500M("Failed get tokens", err)
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}
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max_len := min(11, len(tokens))
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c.ShowMessage = false
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return c.SendJSON(struct {
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TokenList []*Token `json:"token_list"`
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ShowNext bool `json:"show_next"`
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}{
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tokens[0:max_len],
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len(tokens) > 10,
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})
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})
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type NewToken struct {
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Name string `json:"name" validate:"required"`
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ExpiryTime int `json:"expiry"`
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Password string `json:"password" validate:"required"`
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}
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PostAuthJson(handle, "/user/token/add", User_Normal, func(c *Context, obj *NewToken) *Error {
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// TODO handle this for admin
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token, generated := generateToken(c.Db, c.User.Email, obj.Password, obj.Name)
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if !generated {
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return c.JsonBadRequest("Password provided is incorrect")
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}
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_, err := c.Db.Exec("update tokens set time_to_live=$1 where token=$2 and user_id=$3", obj.ExpiryTime, token, c.User.Id)
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if err != nil {
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return c.E500M("Failed to update token info", err)
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}
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return c.SendJSON(struct {
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Name string `json:"name"`
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ExpiryTime int `json:"expiry"`
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Token string `json:"token"`
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}{
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obj.Name, obj.ExpiryTime, token,
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})
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})
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type TokenDelete struct {
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Time time.Time `json:"time" validate:"required"`
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}
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DeleteAuthJson(handle, "/user/token", User_Normal, func(c *Context, obj *TokenDelete) *Error {
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// TODO allow admin user to delete to other persons token
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err := deleteToken(c.Db, c.User.Id, obj.Time)
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if err != nil {
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return c.E500M("Could not delete token", err)
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}
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return c.SendJSON("Ok")
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})
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type DeleteUser struct {
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Id string `json:"id" validate:"required"`
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Password string `json:"password" validate:"required"`
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}
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DeleteAuthJson(handle, "/user/delete", User_Normal, func(c *Context, obj *DeleteUser) *Error {
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// TODO let admin delete users
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if c.User.Id != obj.Id {
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return c.E500M("TODO implement this for admins", nil)
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}
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// TODO let admin delete users
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// Verify the user password
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_, generated := generateToken(c.Db, c.User.Email, obj.Password, "User Verification")
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if !generated {
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return c.JsonBadRequest("Password provided is incorrect")
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}
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// Disable the ability for the user to create new tasks
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_, err := c.Db.Exec(
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"update models as m set can_train=0 "+
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"from users as u "+
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"where u.id=$1 and u.id=m.user_id;",
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obj.Id,
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)
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if err != nil {
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return c.E500M("Failed to stop the models", err)
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}
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type CreateNewTask struct {
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UserId string `db:"user_id"`
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TaskType int `db:"task_type"`
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Status int `db:"status"`
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ExtraTaskInfo string `db:"extra_task_info"`
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}
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newTask := CreateNewTask{
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UserId: c.Handle.Config.ServiceUser.UserId,
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// TODO move this to an enum
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TaskType: int(TASK_TYPE_DELETE_USER),
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Status: TASK_PREPARING,
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ExtraTaskInfo: obj.Id,
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}
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t_id, err := InsertReturnId(c, &newTask, "tasks", "id")
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if err != nil {
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return c.E500M("Failed to create task", err)
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}
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task := Task{Id: t_id}
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type taskId struct {
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Id string `db:"t.id"`
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}
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tasks, err := GetDbMultitple[taskId](c, "tasks as t "+
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"left join models as m on m.id=t.model_id "+
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"where (t.user_id=$1 or m.user_id=$1) and t.status in (0,1,2,3) "+
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"group by t.id;",
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obj.Id)
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for i := range tasks {
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err = task.Depend(c, tasks[i].Id)
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if err != nil {
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c.Logger.Error("Failed to mark task as depency", "err", err)
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}
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}
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err = task.UpdateStatus(c, TASK_TODO, "Task ready")
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if err != nil {
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return c.E500M("Failed to mark task as ready", err)
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}
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_, err = c.Db.Exec("update users set user_type=-1 where id=$1", obj.Id)
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if err != nil {
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return c.E500M("Failed to delete user", err)
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}
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return c.SendJSON("User to be deleted")
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})
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}
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