LibraryManagementSystem/window_changepassmember.cpp at master · Nilsae/LibraryManagementSystem · GitHub

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#include "window_changepassmember.h"
#include "ui_window_changepassmember.h"
#include "window_updateaccount.h"
#include "ui_window_updateaccount.h"
#include <QFile>
#include <QTextStream>
#include <QDebug>
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonArray>
#include <bits/stdc++.h>
#include <QDate>
#include <QString>
#include <QPair>
#include<QMessageBox>
#include<QCryptographicHash>
#include<globalvaribals.h>
#include<QByteArray>
#include<QDir>
#include "globalvaribals.h"
Window_ChangePassMember::Window_ChangePassMember(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::Window_ChangePassMember)
{
    ui->setupUi(this);
}

Window_ChangePassMember::~Window_ChangePassMember()
{
    delete ui;
}

void Window_ChangePassMember::on_pushButton_ChangePass_clicked()
{
    QDir account;
       account.cd("..");
       account.cd("Login_MY_FINAL");
       account.cd("RowData");
       QFile AccountsFile (account.path()+"/accounts.json");
       AccountsFile.open(QIODevice::ReadWrite);
       QJsonDocument jsonDocAcc = QJsonDocument::fromJson( AccountsFile.readAll() );
       QJsonObject Accounts_Obj=jsonDocAcc.object();
       AccountsFile.close();


       QString MemberId = QString::number(GlobalVaribals::CurrentId);
       if(Accounts_Obj.find(MemberId)==Accounts_Obj.end()){
           QMessageBox::warning(this," ","Member Account not found!");
           this->close();
           return;
       }
       QJsonValueRef Account_ref = Accounts_Obj.find(MemberId).value();
       QJsonObject Account_Obj= Account_ref.toObject();

       QString RealHashedPassword= Account_Obj["Password"].toString();
       QString EnteredOLDPassword = ui->lineEdit_OldPass->text();
       QString EnteredNEWPassword = ui->lineEdit_NewPass->text();
       QString EnteredConfirmPassword =ui->lineEdit_ConfirmPass->text();
       if(EnteredNEWPassword.size()<8){
           QMessageBox::warning(this,"","Password can not be less than 8 characters.");
           this->close();
           return;

       }
       if(EnteredNEWPassword==""||EnteredConfirmPassword==""){
           QMessageBox::warning(this,"","All sections haven't filled out");
           this->close();
       }
       else{
       if(EnteredConfirmPassword!=EnteredNEWPassword){
           QMessageBox::warning(this,"","New Password and confirmed password did not match");
           this->close();
              return;
       }

       char*  ch;
       QByteArray ba = EnteredOLDPassword.toLatin1();
       ch=ba.data ();
       QString HashedOLDEnteredPassword = QString(QCryptographicHash::hash((ch),QCryptographicHash::Keccak_512).toHex());
        ba = EnteredNEWPassword.toLatin1();
       ch=ba.data ();
       QString HashedNEWEnteredPassword = QString(QCryptographicHash::hash((ch),QCryptographicHash::Keccak_512).toHex());
       if(RealHashedPassword==HashedNEWEnteredPassword){

           QMessageBox::warning(this,"","Entered Password is equal to the previous one");
           this->close();
              return;

       }
       if(RealHashedPassword==HashedOLDEnteredPassword&&EnteredConfirmPassword==EnteredNEWPassword){
           QString newPassword= ui->lineEdit_NewPass->text();
           QString MemberName= Account_Obj["Name"].toString();
            QString Username= Account_Obj["Username"].toString();
           QString ExpireDate= Account_Obj["ExpireDate"].toString();
           QString date_added= Account_Obj["date_added"].toString();
           int AccountType= Account_Obj["AccountType"].toInt();
           QJsonObject RentedBooks= Account_Obj["RentedBooks"].toObject();
           QJsonObject EditedAccount = { {"Name", MemberName},
                                          {"Username", Username},
                                      {"id", MemberId},
                                          {"date_added", date_added},
                                  {"ExpireDate", ExpireDate},
                                          {"AccountType", AccountType},
                                          {"Password", HashedNEWEnteredPassword},
                                      {"RentedBooks",RentedBooks}
                                        };
           Accounts_Obj.remove(MemberId);
          Accounts_Obj[MemberId]=EditedAccount;


          QJsonDocument doc( Accounts_Obj );

          if( !AccountsFile.open( QIODevice::WriteOnly ) ) //write json content to file.
          {
              qDebug()<<"error opening file for write.\n";
                 return;
          }

          AccountsFile.write(doc.toJson());
          AccountsFile.close();


              QMessageBox::information(this,"","Password updated successfully");
               return;
       }
       if(RealHashedPassword!=HashedOLDEnteredPassword){
           QMessageBox::warning(this,"","Incorrect old password");
           this->close();
              return;
       }

   }

}