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auth.go
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auth.go
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package controllers
import (
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"net/http"
"strconv"
"github.com/IanVinkHub/gojapi/app"
"github.com/IanVinkHub/gojapi/app/db"
"github.com/IanVinkHub/gojapi/app/jio"
"github.com/IanVinkHub/gojapi/models/dbmodels"
"github.com/IanVinkHub/gojapi/models/reqmodels"
"github.com/IanVinkHub/gojapi/models/resmodels"
"golang.org/x/crypto/bcrypt"
)
const cost = 12
const methodNotAllowedMessage = "Method not allowed for this API endpoint"
func getUserLogin(w http.ResponseWriter, body reqmodels.LoginPost) *resmodels.LoginPost {
// Get all users
rows, err := qb.From("users").WhereValue("username", body.Username).All()
if err != nil {
jio.Error(w, err, 500)
return nil
}
//returnedRows
var returnedRow resmodels.LoginPost
userRows := db.ReadRows(dbmodels.User{}, rows)
if len(userRows) == 0 {
// Comparing hash for adding realistic delay to try to prevent username checking for existance by delay
bcrypt.CompareHashAndPassword([]byte("Password123456"), []byte(body.Password))
errMsg := jio.CreateErrorMsg(jio.CredentialsNotFound, nil)
jio.WriteMsg(w, "", errMsg)
return nil
}
if len(userRows) > 1 {
jio.Error(w, err, 500)
return nil
}
user := userRows[0].(dbmodels.User)
// Check if correct password was given
err = bcrypt.CompareHashAndPassword([]byte(user.Password), []byte(body.Password))
if err != nil {
errMsg := jio.CreateErrorMsg(jio.CredentialsNotFound, nil)
jio.WriteMsg(w, "", errMsg)
return nil
}
token := app.CreateUserToken(user.Username)
userToken, errMsg := app.GetUserToken(user.Username, token)
if errMsg != nil {
jio.WriteMsg(w, "", errMsg)
return nil
}
returnedRow = resmodels.LoginPost{ID: user.ID, Username: user.Username, Auth: userToken.GetTokenPostResponse()}
return &returnedRow
}
// Login handles the login api call
func Login(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" {
jio.Error(w, errors.New(methodNotAllowedMessage), 405)
return
}
// Read body
b := jio.Readbody(w, r)
if b == nil {
return
}
// Unmarshal body to body variable
var body reqmodels.LoginPost
err := json.Unmarshal(b, &body)
if err != nil {
errMsg := jio.CreateErrorMsgError(jio.InvalidJSON, []string{}, err)
jio.WriteMsg(w, "", errMsg)
return
}
// Check if any params are invalid
errorParam := jio.CheckParamsStruc(body)
if len(errorParam) > 0 {
errMsg := jio.CreateErrorMsg(jio.InvalidParameters, errorParam)
jio.WriteMsg(w, "", errMsg)
return
}
returnedRow := getUserLogin(w, body)
if returnedRow == nil {
return
}
fmt.Println(returnedRow.Auth.Token)
jio.WriteMsg(w, returnedRow, "")
}
// Register handles the register api call
func Register(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" {
jio.Error(w, errors.New(methodNotAllowedMessage), 405)
return
}
// Read body
b, err := ioutil.ReadAll(r.Body)
defer r.Body.Close()
if err != nil {
jio.Error(w, err, 500)
return
}
// Unmarshal body to body variable
var body reqmodels.LoginPost
err = json.Unmarshal(b, &body)
if err != nil {
errMsg := jio.CreateErrorMsgError(jio.InvalidJSON, []string{}, err)
jio.WriteMsg(w, "", errMsg)
return
}
// Check if any params are invalid
errorParam := jio.CheckParamsStruc(body)
if len(errorParam) > 0 {
errMsg := jio.CreateErrorMsg(jio.InvalidParameters, errorParam)
jio.WriteMsg(w, "", errMsg)
return
}
// Get all users
rows, err := qb.From("users").WhereValue("username", body.Username).All()
if err != nil {
jio.Error(w, err, 500)
return
}
// Check if username not yet used
userRows := db.ReadRows(dbmodels.User{}, rows)
if len(userRows) != 0 {
errMsg := jio.CreateErrorMsg(jio.CredentialsExist, nil)
jio.WriteMsg(w, "", errMsg)
return
}
// Encrypt password
psw, err := bcrypt.GenerateFromPassword([]byte(body.Password), cost)
if err != nil {
jio.Error(w, err, 500)
return
}
oldpsw := body.Password
body.Password = string(psw)
// Insert user data
rows, err = qb.Insert("users", body)
if err != nil {
jio.Error(w, err, 500)
return
}
// Gets the data to return and makes sure password won't return
fmt.Println(body.Username)
fmt.Println(body.Password)
body.Password = oldpsw
returnedRow := getUserLogin(w, body)
if returnedRow == nil {
return
}
fmt.Println(returnedRow.Auth.Token)
jio.WriteMsg(w, returnedRow, "")
}
// Changepassword handles the changepassword api call
func Changepassword(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" {
jio.Error(w, errors.New(methodNotAllowedMessage), 405)
return
}
// Read body
b := jio.Readbody(w, r)
if b == nil {
return
}
// Unmarshal body to body variable
var body reqmodels.ChangePasswordPost
err := json.Unmarshal(b, &body)
if err != nil {
errMsg := jio.CreateErrorMsgError(jio.InvalidJSON, []string{}, err)
jio.WriteMsg(w, "", errMsg)
return
}
// Check if any params are invalid
errorParam := jio.CheckParamsStruc(body)
if len(errorParam) > 0 {
errMsg := jio.CreateErrorMsg(jio.InvalidParameters, errorParam)
jio.WriteMsg(w, "", errMsg)
return
}
returnedRow := getUserLogin(w, reqmodels.LoginPost{Username: body.Username, Password: body.Password})
if returnedRow == nil {
return
}
// Encrypt password
psw, err := bcrypt.GenerateFromPassword([]byte(body.NewPassword), cost)
if err != nil {
jio.Error(w, err, 500)
return
}
_, err = qb.WhereValue("id", strconv.Itoa(returnedRow.ID)).Update("users", reqmodels.LoginPost{Username: body.Username, Password: string(psw)})
if err != nil {
jio.Error(w, err, 500)
return
}
// Gets the data to return and makes sure password won't return
/*
returnRows := []resmodels.LoginPost{}
userRows := db.ReadRows(dbmodels.User{}, rows)
user := userRows[0].(dbmodels.User)
returnRows = append(returnRows, resmodels.LoginPost{ID: user.ID, Username: user.Username, Auth: CreateUserToken(user.Username)})*/
returnedRow = getUserLogin(w, reqmodels.LoginPost{Username: body.Username, Password: body.NewPassword})
if returnedRow == nil {
return
}
fmt.Println(returnedRow.Auth.Token)
jio.WriteMsg(w, returnedRow, "")
}
// Logout handles the logout api call
func Logout(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" {
jio.Error(w, errors.New(methodNotAllowedMessage), 405)
return
}
// Read body
b := jio.Readbody(w, r)
if b == nil {
return
}
// Unmarshal body to body variable
var body reqmodels.TokenPost
err := json.Unmarshal(b, &body)
if err != nil {
fmt.Println(err)
fmt.Println(err.Error())
errMsg := jio.CreateErrorMsgError(jio.InvalidJSON, []string{}, err)
jio.WriteMsg(w, "", errMsg)
return
}
errMsg := app.DeleteUserToken(body.Username, body.AuthToken)
if errMsg != nil {
jio.WriteMsg(w, "", errMsg)
return
}
jio.WriteMsg(w, "Succesfully logged out.", "")
}
// GetTokenInfo handles the token info api call
func GetTokenInfo(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" {
jio.Error(w, errors.New(methodNotAllowedMessage), 405)
return
}
// Read body
b := jio.Readbody(w, r)
if b == nil {
return
}
// Unmarshal body to body variable
var body reqmodels.TokenPost
err := json.Unmarshal(b, &body)
if err != nil {
fmt.Println(err)
fmt.Println(err.Error())
errMsg := jio.CreateErrorMsgError(jio.InvalidJSON, []string{}, err)
jio.WriteMsg(w, "", errMsg)
return
}
userToken, errMsg := app.GetUserToken(body.Username, body.AuthToken)
if errMsg != nil {
jio.WriteMsg(w, "", errMsg)
return
}
jio.WriteMsg(w, userToken.GetTokenPostResponse(), "")
}
// RefreshTokenPost handles the refresh token api Call
func RefreshTokenPost(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" {
jio.Error(w, errors.New(methodNotAllowedMessage), 405)
return
}
// Read body
b := jio.Readbody(w, r)
if b == nil {
return
}
// Unmarshal body to body variable
var body reqmodels.TokenPost
err := json.Unmarshal(b, &body)
if err != nil {
errMsg := jio.CreateErrorMsgError(jio.InvalidJSON, []string{}, err)
jio.WriteMsg(w, "", errMsg)
return
}
newToken, errMsg := app.RefreshUserToken(body.Username, body.AuthToken)
if errMsg != nil {
jio.WriteMsg(w, "", errMsg)
return
}
userToken, errMsg := app.GetUserToken(body.Username, newToken)
if errMsg != nil {
jio.WriteMsg(w, "", errMsg)
return
}
jio.WriteMsg(w, userToken.GetTokenPostResponse(), "")
}