alai-server/backend/controllers/user.go

186 lines
4.8 KiB
Go

package controllers
import (
"encoding/json"
"errors"
"net/http"
"strconv"
"git.cromer.cl/Proyecto-Titulo/alai-server/backend/database"
"git.cromer.cl/Proyecto-Titulo/alai-server/backend/middlewares"
"git.cromer.cl/Proyecto-Titulo/alai-server/backend/models"
"git.cromer.cl/Proyecto-Titulo/alai-server/backend/utils"
"github.com/julienschmidt/httprouter"
)
func ListUser(writer http.ResponseWriter, request *http.Request, params httprouter.Params) {
gdb := database.Connect()
defer database.Close(gdb)
var users []models.User
queryParams := request.URL.Query()
limit, offset, err := utils.GetLimitOffset(queryParams)
if err != nil {
utils.JSONErrorOutput(writer, http.StatusBadRequest, err.Error())
return
}
filters := []string{
"name",
"username",
"email",
"password",
}
whereClause, err := utils.GenerateWhereFilter(filters, queryParams)
if err != nil {
utils.JSONErrorOutput(writer, http.StatusBadRequest, err.Error())
return
}
result := gdb.Model(&models.User{}).Where(whereClause).Order("ID asc").Limit(limit).Offset(offset).Find(&users)
if result.Error != nil {
utils.JSONErrorOutput(writer, http.StatusBadRequest, result.Error.Error())
return
} else {
for i := range users {
users[i].Password = ""
}
writer.Header().Set("Content-Type", "application/json")
writer.WriteHeader(http.StatusOK)
json.NewEncoder(writer).Encode(users)
}
}
func GetUser(writer http.ResponseWriter, request *http.Request, params httprouter.Params) {
gdb := database.Connect()
defer database.Close(gdb)
var user models.User
result := gdb.Model(&models.User{}).Find(&user, params.ByName("id"))
if result.Error != nil {
utils.JSONErrorOutput(writer, http.StatusBadRequest, result.Error.Error())
return
} else if result.RowsAffected == 0 {
writer.WriteHeader(http.StatusNotFound)
return
} else {
user.Password = ""
writer.Header().Set("Content-Type", "application/json")
writer.WriteHeader(http.StatusOK)
json.NewEncoder(writer).Encode(user)
}
}
func CreateUser(writer http.ResponseWriter, request *http.Request, params httprouter.Params) {
gdb := database.Connect()
defer database.Close(gdb)
var user models.User
decoder := json.NewDecoder(request.Body)
err := decoder.Decode(&user)
if err != nil {
utils.JSONErrorOutput(writer, http.StatusBadRequest, err.Error())
return
}
user.HashPassword(user.Password)
result := gdb.Create(&user)
if result.Error != nil {
utils.JSONErrorOutput(writer, http.StatusBadRequest, result.Error.Error())
return
} else {
writer.WriteHeader(http.StatusNoContent)
}
}
func UpdateUser(writer http.ResponseWriter, request *http.Request, params httprouter.Params) {
gdb := database.Connect()
defer database.Close(gdb)
claims := request.Context().Value(middlewares.JWTContextKey).(*utils.JWTClaim)
username := claims.Username
var user models.User
decoder := json.NewDecoder(request.Body)
err := decoder.Decode(&user)
if err != nil {
utils.JSONErrorOutput(writer, http.StatusBadRequest, err.Error())
return
}
user.ID, err = strconv.ParseUint(params.ByName("id"), 10, 64)
if err != nil {
utils.JSONErrorOutput(writer, http.StatusBadRequest, err.Error())
return
}
if user.NewPassword != "" {
var tmpUser models.User
result := gdb.Where(&models.User{Username: username}).Find(&tmpUser)
if result.Error != nil {
utils.JSONErrorOutput(writer, http.StatusBadRequest, result.Error.Error())
return
} else if result.RowsAffected == 0 {
writer.WriteHeader(http.StatusNotFound)
return
}
// If the logged in user and the modified user are no the same, password can't be changed
if tmpUser.ID != user.ID {
utils.JSONErrorOutput(writer, http.StatusBadRequest, errors.New("only the same user may change password").Error())
return
}
err = tmpUser.CheckPassword(user.Password)
if err != nil {
utils.JSONErrorOutput(writer, http.StatusBadRequest, errors.New("incorrect user or password").Error())
return
}
user.HashPassword(user.NewPassword)
} else {
user.Password = ""
}
result := gdb.Updates(&user)
if result.Error != nil {
utils.JSONErrorOutput(writer, http.StatusBadRequest, result.Error.Error())
return
} else if result.RowsAffected == 0 {
writer.WriteHeader(http.StatusNotFound)
return
} else {
writer.WriteHeader(http.StatusNoContent)
}
}
func DeleteUser(writer http.ResponseWriter, request *http.Request, params httprouter.Params) {
gdb := database.Connect()
defer database.Close(gdb)
var user models.User
user.ID, _ = strconv.ParseUint(params.ByName("id"), 10, 64)
result := gdb.Unscoped().Delete(&user)
if result.Error != nil {
utils.JSONErrorOutput(writer, http.StatusBadRequest, result.Error.Error())
return
} else if result.RowsAffected == 0 {
writer.WriteHeader(http.StatusNotFound)
return
} else {
writer.WriteHeader(http.StatusNoContent)
}
}