Kennwortmanager KeePassX Weiterentwicklung der Version 1
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keepassx1/src/dialogs/PasswordDlg.cpp

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/***************************************************************************
* Copyright (C) 2005-2006 by Tarek Saidi *
* tarek.saidi@arcor.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <QFileDialog>
#include <QDir>
#include <QStringList>
#include <QCheckBox>
#include <QLineEdit>
#include <QComboBox>
#include <QPushButton>
#include <QMessageBox>
#include <QStringList>
#include "main.h"
#include "KpxConfig.h"
#include "PasswordDlg.h"
#include "lib/FileDialogs.h"
CPasswordDialog::CPasswordDialog(QWidget* parent,IDatabase* DB,bool ShowExitButton,bool ChangeKeyMode)
: QDialog(parent)
{
setupUi(this);
createBanner(Banner,getPixmap("key"),tr("Database Key"));
db=DB;
QString mountDir=config->mountDir();
QDir media(mountDir);
if(media.exists()){
QStringList Paths;
Paths=media.entryList(QStringList()<<"*",QDir::Dirs);
Paths.erase(Paths.begin()); // delete "."
Paths.erase(Paths.begin()); // delete ".."
for(int i=0;i<Paths.count();i++)
Combo_Dirs->addItem(mountDir+Paths[i]);
}
Combo_Dirs->setEditText(QString());
if(config->rememberLastKey() && !ChangeKeyMode){
switch(config->lastKeyType()){
case KEYFILE:
setStateKeyFileOnly();
Combo_Dirs->setEditText(QDir::cleanPath(QDir::current().absoluteFilePath(config->lastKeyLocation())));
break;
case BOTH:
setStateBoth();
CheckBox_Both->setChecked(true);
Combo_Dirs->setEditText(QDir::cleanPath(QDir::current().absoluteFilePath(config->lastKeyLocation())));
}
// if(LastKeyType==Password){... is not required because it is already the default state.
}
connect( Combo_Dirs, SIGNAL( editTextChanged(const QString&) ),this, SLOT( OnComboTextChanged(const QString&)));
connect( ButtonCancel, SIGNAL( clicked() ), this, SLOT( OnCancel() ) );
connect( Edit_Password, SIGNAL( textChanged(const QString&) ), this, SLOT( OnPasswordChanged(const QString&) ) );
connect( CheckBox_Both, SIGNAL( stateChanged(int) ), this, SLOT( OnCheckBox_BothChanged(int) ) );
connect( ButtonChangeEchoMode, SIGNAL( clicked() ), this, SLOT( ChangeEchoModeDatabaseKey() ) );
connect( Edit_Password, SIGNAL( returnPressed() ), this, SLOT( OnOK() ) );
connect( Edit_PasswordRep, SIGNAL( returnPressed() ), this, SLOT( OnOK() ) );
connect( ButtonExit, SIGNAL( clicked()),this,SLOT(OnButtonExit()));
ButtonExit->setVisible(ShowExitButton);
Mode_Set=ChangeKeyMode;
if(!ChangeKeyMode){
Edit_PasswordRep->hide();
Label_PasswordRep->hide();
connect( ButtonOK, SIGNAL( clicked() ), this, SLOT( OnOK() ) );
connect( ButtonBrowse, SIGNAL( clicked() ), this, SLOT( OnButtonBrowse() ) );
}else{
connect( ButtonOK, SIGNAL( clicked() ), this, SLOT( OnOK_Set() ) );
connect( ButtonBrowse, SIGNAL( clicked() ), this, SLOT( OnButtonBrowse_Set() ) );
}
if(!config->showPasswordsPasswordDlg())ChangeEchoModeDatabaseKey();
}
void CPasswordDialog::setStatePasswordOnly(){
Combo_Dirs->setEnabled(false);
ButtonBrowse->setEnabled(false);
Label_KeyFile->setEnabled(false);
Label_Password->setEnabled(true);
Label_PasswordRep->setEnabled(true);
Edit_Password->setEnabled(true);
Edit_PasswordRep->setEnabled(true);
ButtonChangeEchoMode->setEnabled(true);
KeyType=PASSWORD;
}
void CPasswordDialog::setStateKeyFileOnly(){
Combo_Dirs->setEnabled(true);
ButtonBrowse->setEnabled(true);
Label_KeyFile->setEnabled(true);
Label_Password->setEnabled(false);
Label_PasswordRep->setEnabled(false);
Edit_Password->setEnabled(false);
Edit_PasswordRep->setEnabled(false);
ButtonChangeEchoMode->setEnabled(false);
KeyType=KEYFILE;
}
void CPasswordDialog::setStateBoth(){
Combo_Dirs->setEnabled(true);
ButtonBrowse->setEnabled(true);
Label_KeyFile->setEnabled(true);
Label_Password->setEnabled(true);
Label_PasswordRep->setEnabled(true);
Edit_Password->setEnabled(true);
Edit_PasswordRep->setEnabled(true);
ButtonChangeEchoMode->setEnabled(true);
KeyType=BOTH;
}
void CPasswordDialog::OnButtonBrowse()
{
QString filename=KpxFileDialogs::openExistingFile(this,"PasswordDlg",tr("Select a Key File"),
QStringList() << tr("All Files (*)") << tr("Key Files (*.key)"));
if(filename!=QString()){
Combo_Dirs->setEditText(filename);
}
return;
}
void CPasswordDialog::OnButtonBrowse_Set()
{
QString filename=KpxFileDialogs::saveFile(this,"PasswordDlg",tr("Select a Key File"),
QStringList() << tr("All Files (*)") << tr("Key Files (*.key)"),
false);
if(filename!=QString()){
Combo_Dirs->setEditText(filename);
}
return;
}
void CPasswordDialog::OnCancel()
{
done(0);
}
void CPasswordDialog::OnOK(){
password=Edit_Password->text();
keyfile=Combo_Dirs->currentText();
if(password.isEmpty() && keyfile.isEmpty()){
QMessageBox::warning(this,tr("Error"),tr("Please enter a Password or select a key file."),tr("OK"),"","",0,0);
return;
}
if(KeyType==BOTH){
if(password.isEmpty()){
QMessageBox::warning(this,tr("Error"),tr("Please enter a Password."),tr("OK"),"","",0,0);
return;}
if(keyfile.isEmpty()){
QMessageBox::warning(this,tr("Error"),tr("Please choose a key file."),tr("OK"),"","",0,0);
return;}
}
if(KeyType==BOTH || KeyType==KEYFILE){
QFileInfo fileinfo(keyfile);
if(!fileinfo.exists()){
QMessageBox::warning(this,tr("Error"),tr("The selected key file or directory does not exist."),tr("OK"),"","",0,0);
return;
}
if(!fileinfo.isReadable()){
QMessageBox::warning(this,tr("Error"),tr("The selected key file or directory is not readable.\nPlease check your permissions."),tr("OK"),"","",0,0);
return;
}
if(fileinfo.isDir()){
if(keyfile.right(1)!="/")keyfile+="/";
QFile file(keyfile+"pwsafe.key");
if(!file.exists()){
QDir dir(keyfile);
QStringList files;
files=dir.entryList(QStringList()<<"*.key",QDir::Files);
if(!files.size()){
QMessageBox::warning(this,tr("Error"),tr("The given directory does not contain any key files."),tr("OK"),"","",0,0);
return;}
if(files.size()>1){
QMessageBox::warning(this,tr("Error"),tr("The given directory contains more then one key file.\nPlease specify the key file directly."),tr("OK"),"","",0,0);
return;}
QFile file(keyfile+files[0]);
Q_ASSERT(file.exists());
if(!QFileInfo(file).isReadable()){
QMessageBox::warning(this,tr("Error"),tr("The key file found in the given directory is not readable.\nPlease check your permissions."),tr("OK"),"","",0,0);
return;}
keyfile+=files[0];
}
else{ /* pwsafe.key exists */
if(!QFileInfo(file).isReadable()){
QMessageBox::warning(this,tr("Error"),tr("The key file found in the given directory is not readable.\nPlease check your permissions."),tr("OK"),"","",0,0);
return;}
keyfile+="pwsafe.key";
}
}
else{ /* not a directory */
QFile file(keyfile);
if(!file.exists()){
QMessageBox::warning(this,tr("Error"),tr("Key file could not be found."),tr("OK"),"","",0,0);
return;}
if(!QFileInfo(file).isReadable()){
QMessageBox::warning(this,tr("Error"),tr("Key file is not readable.\nPlease check your permissions."),tr("OK"),"","",0,0);
return;}
}
}
if(doAuth())done(1);
}
void CPasswordDialog::OnOK_Set(){
password=Edit_Password->text();
if(password!=Edit_PasswordRep->text()){
QMessageBox::warning(this,tr("Warning"),tr("Password an password repetition are not equal.\nPlease check your input."),tr("OK"),"","",0,0);
return;
}
keyfile=Combo_Dirs->currentText();
if(password.isEmpty() && keyfile.isEmpty()){
QMessageBox::warning(this,tr("Error"),tr("Please enter a password or select a key file."),tr("OK"),"","",0,0);
return;
}
if(!keyfile.isEmpty()){
QFile file(keyfile);
if(QFileInfo(file).isDir()){
if(keyfile.right(1)!="/")keyfile+="/";
keyfile+="pwsafe.key";
}
if(file.exists()){
switch(QMessageBox::question(this,tr("File exists."),tr("A file with the selected name already exists, should this file be used as key file or do you want to overwrite it with a newly generated one?"),
tr("Use"),tr("Overwrite"),tr("Cancel"),0,2)){
case 0:
OverwriteKeyFile=false;
break;
case 1:
OverwriteKeyFile=true;
break;
case 2:
return;
}
}
IFilePasswordAuth* DbAuth=dynamic_cast<IFilePasswordAuth*>(db);
if(OverwriteKeyFile){
if(!DbAuth->createKeyFile(keyfile,32,true)){
QMessageBox::warning(this,tr("Error"),tr("Key file could not be created.\n%1").arg(db->getError()),tr("OK"),"","",0,0);
return;
}
}
}
if(doAuth())done(1);
}
bool CPasswordDialog::doAuth(){
IFilePasswordAuth* DbAuth=dynamic_cast<IFilePasswordAuth*>(db);
if(!password.isEmpty() && keyfile.isEmpty()){
DbAuth->authByPwd(password);
}
if(password.isEmpty() && !keyfile.isEmpty()){
if(!DbAuth->authByFile(keyfile))return false;
}
if(!password.isEmpty() && !keyfile.isEmpty()){
if(!DbAuth->authByFile(keyfile))return false;
}
if(config->rememberLastKey()){
QString KeyLocation=keyfile;
if(config->saveRelativePaths()){
KeyLocation=KeyLocation.left(KeyLocation.lastIndexOf("/"));
KeyLocation=makePathRelative(KeyLocation,QDir::currentPath())+keyfile.right(keyfile.length()-keyfile.lastIndexOf("/")-1);
}
config->setLastKeyLocation(KeyLocation);
config->setLastKeyType(KeyType);
}
return true;
}
void CPasswordDialog::OnPasswordChanged(const QString &txt){
Edit_PasswordRep->setText(QString());
if(CheckBox_Both->isChecked() || txt.isEmpty())
setStateBoth();
else
setStatePasswordOnly();
}
void CPasswordDialog::OnComboTextChanged(const QString& txt){
if(CheckBox_Both->isChecked() || txt.isEmpty())
setStateBoth();
else
setStateKeyFileOnly();
}
void CPasswordDialog::OnCheckBox_BothChanged(int state){
if(state==Qt::Checked)
setStateBoth();
if(state==Qt::Unchecked){
if(!Edit_Password->text().isEmpty() && !Combo_Dirs->currentText().isEmpty()){
Combo_Dirs->setEditText(QString());
setStatePasswordOnly();
}
else{
if(Edit_Password->text().isEmpty())
setStateKeyFileOnly();
else
setStatePasswordOnly();
}
}
}
void CPasswordDialog::ChangeEchoModeDatabaseKey(){
if(Edit_Password->echoMode()==QLineEdit::Normal){
Edit_Password->setEchoMode(QLineEdit::Password);
Edit_PasswordRep->setEchoMode(QLineEdit::Password);}
else{
Edit_Password->setEchoMode(QLineEdit::Normal);
Edit_PasswordRep->setEchoMode(QLineEdit::Normal);}
}
void CPasswordDialog::OnButtonExit(){
done(2);
}