alai-server/backend/controllers/user.go

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package controllers
import (
"encoding/json"
"errors"
"net/http"
"strconv"
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"git.cromer.cl/Proyecto-Titulo/alai-server/backend/database"
"git.cromer.cl/Proyecto-Titulo/alai-server/backend/models"
"git.cromer.cl/Proyecto-Titulo/alai-server/backend/utils"
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"github.com/julienschmidt/httprouter"
)
func Login(writer http.ResponseWriter, request *http.Request, params httprouter.Params) {
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gdb := database.Connect()
defer database.Close(gdb)
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var receivedUser models.User
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var user models.User
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decoder := json.NewDecoder(request.Body)
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err := decoder.Decode(&receivedUser)
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if err != nil {
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utils.JSONErrorOutput(writer, http.StatusBadRequest, err.Error())
return
}
result := gdb.Model(models.User{}).Where(&models.User{Username: receivedUser.Username}).Find(&user)
if result.Error != nil {
utils.JSONErrorOutput(writer, http.StatusBadRequest, result.Error.Error())
return
} else if result.RowsAffected == 0 {
utils.JSONErrorOutput(writer, http.StatusBadRequest, errors.New("incorrect user or password").Error())
return
}
err = user.CheckPassword(receivedUser.Password)
if err != nil {
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utils.JSONErrorOutput(writer, http.StatusBadRequest, errors.New("incorrect user or password").Error())
return
}
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type Token struct {
Token string `json:"token"`
}
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tokenString, err := utils.GenerateJWT(user.Email, user.Username)
if err != nil {
utils.JSONErrorOutput(writer, http.StatusBadRequest, err.Error())
return
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}
token := Token{Token: tokenString}
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writer.Header().Set("Content-Type", "application/json")
writer.WriteHeader(http.StatusOK)
json.NewEncoder(writer).Encode(token)
}
func AuthenticateUser(writer http.ResponseWriter, request *http.Request, params httprouter.Params) {
writer.Header().Set("Content-Type", "application/json")
writer.WriteHeader(http.StatusNoContent)
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}
func ListUsers(writer http.ResponseWriter, request *http.Request, params httprouter.Params) {
gdb := database.Connect()
defer database.Close(gdb)
var users []models.User
result := gdb.Model(&models.User{}).Order("ID asc").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)
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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) {
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gdb := database.Connect()
defer database.Close(gdb)
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var user models.User
decoder := json.NewDecoder(request.Body)
err := decoder.Decode(&user)
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if err != nil {
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utils.JSONErrorOutput(writer, http.StatusBadRequest, err.Error())
return
}
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user.HashPassword(user.Password)
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result := gdb.Create(&user)
if result.Error != nil {
utils.JSONErrorOutput(writer, http.StatusBadRequest, result.Error.Error())
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return
} else {
writer.WriteHeader(http.StatusNoContent)
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}
}
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func UpdateUser(writer http.ResponseWriter, request *http.Request, params httprouter.Params) {
gdb := database.Connect()
defer database.Close(gdb)
var user models.User
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decoder := json.NewDecoder(request.Body)
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err := decoder.Decode(&user)
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if err != nil {
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utils.JSONErrorOutput(writer, http.StatusBadRequest, err.Error())
return
}
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user.ID, err = strconv.ParseUint(params.ByName("id"), 10, 64)
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if err != nil {
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utils.JSONErrorOutput(writer, http.StatusBadRequest, err.Error())
return
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}
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if user.Password != "" {
user.HashPassword(user.Password)
}
result := gdb.Updates(&user)
if result.Error != nil {
utils.JSONErrorOutput(writer, http.StatusBadRequest, result.Error.Error())
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return
} else if result.RowsAffected == 0 {
writer.WriteHeader(http.StatusNotFound)
return
} else {
writer.WriteHeader(http.StatusNoContent)
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}
}
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func DeleteUser(writer http.ResponseWriter, request *http.Request, params httprouter.Params) {
gdb := database.Connect()
defer database.Close(gdb)
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var user models.User
user.ID, _ = strconv.ParseUint(params.ByName("id"), 10, 64)
result := gdb.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)
}
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}