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tdelibs/kdeui/kpassdlg.cpp

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// vi: ts=8 sts=4 sw=4
/* This file is part of the KDE libraries
Copyright (C) 1998 Pietro Iglio <iglio@fub.it>
Copyright (C) 1999,2000 Geert Jansen <jansen@kde.org>
Copyright (C) 2004,2005 Andrew Coles <andrew_coles@yahoo.co.uk>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <unistd.h>
#include <tqwidget.h>
#include <tqlineedit.h>
#include <tqlabel.h>
#include <tqlayout.h>
#include <tqsize.h>
#include <tqevent.h>
#include <tqkeycode.h>
#include <tqcheckbox.h>
#include <tqregexp.h>
#include <tqhbox.h>
#include <tqwhatsthis.h>
#include <tqptrdict.h>
#include <kglobal.h>
#include <kdebug.h>
#include <kapplication.h>
#include <klocale.h>
#include <kiconloader.h>
#include <kmessagebox.h>
#include <kaboutdialog.h>
#include <kconfig.h>
#include <kstandarddirs.h>
#include <kprogress.h>
#include <sys/time.h>
#include <sys/resource.h>
#include "kpassdlg.h"
#include "../kdesu/defaults.h"
/*
* Password line editor.
*/
// BCI: Add a real d-pointer and put the int into that
static TQPtrDict<int>* d_ptr = 0;
static void cleanup_d_ptr() {
delete d_ptr;
}
static int * ourMaxLength( const KPasswordEdit* const e ) {
if ( !d_ptr ) {
d_ptr = new TQPtrDict<int>;
d_ptr->setAutoDelete(true);
qAddPostRoutine( cleanup_d_ptr );
}
int* ret = d_ptr->find( (void*) e );
if ( ! ret ) {
ret = new int;
d_ptr->replace( (void*) e, ret );
}
return ret;
}
static void delete_d( const KPasswordEdit* const e ) {
if ( d_ptr )
d_ptr->remove( (void*) e );
}
const int KPasswordEdit::PassLen = 200;
class KPasswordDialog::KPasswordDialogPrivate
{
public:
KPasswordDialogPrivate()
: m_MatchLabel( 0 ), iconName( 0 ), allowEmptyPasswords( false ),
minimumPasswordLength(0), maximumPasswordLength(KPasswordEdit::PassLen - 1),
passwordStrengthWarningLevel(1), m_strengthBar(0),
reasonablePasswordLength(8)
{}
TQLabel *m_MatchLabel;
TQString iconName;
bool allowEmptyPasswords;
int minimumPasswordLength;
int maximumPasswordLength;
int passwordStrengthWarningLevel;
KProgress* m_strengthBar;
int reasonablePasswordLength;
};
KPasswordEdit::KPasswordEdit(TQWidget *parent, const char *name)
: TQLineEdit(parent, name)
{
init();
KConfig* const cfg = KGlobal::config();
KConfigGroupSaver saver(cfg, "Passwords");
const TQString val = cfg->readEntry("EchoMode", "OneStar");
if (val == "ThreeStars")
m_EchoMode = ThreeStars;
else if (val == "NoEcho")
m_EchoMode = NoEcho;
else
m_EchoMode = OneStar;
setInputMethodEnabled( true );
}
KPasswordEdit::KPasswordEdit(TQWidget *parent, const char *name, int echoMode)
: TQLineEdit(parent, name), m_EchoMode(echoMode)
{
init();
}
KPasswordEdit::KPasswordEdit(EchoModes echoMode, TQWidget *parent, const char *name)
: TQLineEdit(parent, name), m_EchoMode(echoMode)
{
init();
}
KPasswordEdit::KPasswordEdit(EchoMode echoMode, TQWidget *parent, const char *name)
: TQLineEdit(parent, name)
, m_EchoMode( echoMode == TQLineEdit::NoEcho ? NoEcho : OneStar )
{
init();
}
void KPasswordEdit::init()
{
setEchoMode(TQLineEdit::Password); // Just in case
setAcceptDrops(false);
int* t = ourMaxLength(this);
*t = (PassLen - 1); // the internal max length
m_Password = new char[PassLen];
m_Password[0] = '\000';
m_Length = 0;
}
KPasswordEdit::~KPasswordEdit()
{
memset(m_Password, 0, PassLen * sizeof(char));
delete[] m_Password;
delete_d(this);
}
void KPasswordEdit::insert(const TQString &txt)
{
const TQCString localTxt = txt.local8Bit();
const unsigned int lim = localTxt.length();
const int m_MaxLength = maxPasswordLength();
for(unsigned int i=0; i < lim; ++i)
{
const unsigned char ke = localTxt[i];
if (m_Length < m_MaxLength)
{
m_Password[m_Length] = ke;
m_Password[++m_Length] = '\000';
}
}
showPass();
}
void KPasswordEdit::erase()
{
m_Length = 0;
memset(m_Password, 0, PassLen * sizeof(char));
setText("");
}
void KPasswordEdit::focusInEvent(TQFocusEvent *e)
{
const TQString txt = text();
setUpdatesEnabled(false);
TQLineEdit::focusInEvent(e);
setUpdatesEnabled(true);
setText(txt);
}
void KPasswordEdit::keyPressEvent(TQKeyEvent *e)
{
switch (e->key()) {
case Key_Return:
case Key_Enter:
case Key_Escape:
e->ignore();
break;
case Key_Backspace:
case Key_Delete:
case 0x7f: // Delete
if (e->state() & (ControlButton | AltButton))
e->ignore();
else if (m_Length) {
m_Password[--m_Length] = '\000';
showPass();
}
break;
default:
const unsigned char ke = e->text().local8Bit()[0];
if (ke >= 32) {
insert(e->text());
} else
e->ignore();
break;
}
}
bool KPasswordEdit::event(TQEvent *e) {
switch(e->type()) {
case TQEvent::MouseButtonPress:
case TQEvent::MouseButtonRelease:
case TQEvent::MouseButtonDblClick:
case TQEvent::MouseMove:
case TQEvent::IMStart:
case TQEvent::IMCompose:
return true; //Ignore
case TQEvent::IMEnd:
{
TQIMEvent* const ie = (TQIMEvent*) e;
if (!ie->text().isEmpty())
insert( ie->text() );
return true;
}
case TQEvent::AccelOverride:
{
TQKeyEvent* const k = (TQKeyEvent*) e;
switch (k->key()) {
case Key_U:
if (k->state() & ControlButton) {
m_Length = 0;
m_Password[m_Length] = '\000';
showPass();
}
}
return true; // stop bubbling
}
default:
// Do nothing
break;
}
return TQLineEdit::event(e);
}
void KPasswordEdit::showPass()
{
TQString tmp;
switch (m_EchoMode) {
case OneStar:
tmp.fill('*', m_Length);
setText(tmp);
break;
case ThreeStars:
tmp.fill('*', m_Length*3);
setText(tmp);
break;
case NoEcho: default:
emit textChanged(TQString::null); //To update the password comparison if need be.
break;
}
}
void KPasswordEdit::setMaxPasswordLength(int newLength)
{
if (newLength >= PassLen) newLength = PassLen - 1; // belt and braces
if (newLength < 0) newLength = 0;
int* t = ourMaxLength(this);
*t = newLength;
while (m_Length > newLength) {
m_Password[m_Length] = '\000';
--m_Length;
}
showPass();
}
int KPasswordEdit::maxPasswordLength() const
{
return *(ourMaxLength(this));
}
/*
* Password dialog.
*/
KPasswordDialog::KPasswordDialog(Types type, bool enableKeep, int extraBttn,
TQWidget *parent, const char *name)
: KDialogBase(parent, name, true, "", Ok|Cancel|extraBttn,
Ok, true), m_Keep(enableKeep? 1 : 0), m_Type(type), d(new KPasswordDialogPrivate)
{
d->iconName = "password";
init();
}
KPasswordDialog::KPasswordDialog(Types type, bool enableKeep, int extraBttn, const TQString& icon,
TQWidget *parent, const char *name )
: KDialogBase(parent, name, true, "", Ok|Cancel|extraBttn,
Ok, true), m_Keep(enableKeep? 1 : 0), m_Type(type), d(new KPasswordDialogPrivate)
{
if ( icon.stripWhiteSpace().isEmpty() )
d->iconName = "password";
else
d->iconName = icon;
init();
}
KPasswordDialog::KPasswordDialog(int type, TQString prompt, bool enableKeep,
int extraBttn)
: KDialogBase(0L, "Password Dialog", true, "", Ok|Cancel|extraBttn,
Ok, true), m_Keep(enableKeep? 1 : 0), m_Type(type), d(new KPasswordDialogPrivate)
{
d->iconName = "password";
init();
setPrompt(prompt);
}
void KPasswordDialog::init()
{
m_Row = 0;
KConfig* const cfg = KGlobal::config();
const KConfigGroupSaver saver(cfg, "Passwords");
bool def = ( qstrcmp( qAppName(), "kdesu" ) == 0 ? defKeep : false );
if (m_Keep && cfg->readBoolEntry("Keep", def))
++m_Keep;
m_pMain = new TQWidget(this);
setMainWidget(m_pMain);
m_pGrid = new TQGridLayout(m_pMain, 10, 3, 0, 0);
m_pGrid->addColSpacing(1, 10);
// Row 1: pixmap + prompt
TQLabel *lbl;
const TQPixmap pix( KGlobal::iconLoader()->loadIcon( d->iconName, KIcon::NoGroup, KIcon::SizeHuge, 0, 0, true));
if (!pix.isNull()) {
lbl = new TQLabel(m_pMain);
lbl->setPixmap(pix);
lbl->setAlignment(AlignHCenter|AlignVCenter);
lbl->setFixedSize(lbl->sizeHint());
m_pGrid->addWidget(lbl, 0, 0, AlignCenter);
}
m_pHelpLbl = new TQLabel(m_pMain);
m_pHelpLbl->setAlignment(AlignLeft|AlignVCenter|WordBreak);
m_pGrid->addWidget(m_pHelpLbl, 0, 2, AlignLeft);
m_pGrid->addRowSpacing(1, 10);
m_pGrid->setRowStretch(1, 12);
// Row 2+: space for 4 extra info lines
m_pGrid->addRowSpacing(6, 5);
m_pGrid->setRowStretch(6, 12);
// Row 3: Password editor #1
lbl = new TQLabel(m_pMain);
lbl->setAlignment(AlignLeft|AlignVCenter);
lbl->setText(i18n("&Password:"));
lbl->setFixedSize(lbl->sizeHint());
m_pGrid->addWidget(lbl, 7, 0, AlignLeft);
TQHBoxLayout *h_lay = new TQHBoxLayout();
m_pGrid->addLayout(h_lay, 7, 2);
m_pEdit = new KPasswordEdit(m_pMain);
m_pEdit2 = 0;
lbl->setBuddy(m_pEdit);
TQSize size = m_pEdit->sizeHint();
m_pEdit->setFixedHeight(size.height());
m_pEdit->setMinimumWidth(size.width());
h_lay->addWidget(m_pEdit);
// Row 4: Password editor #2 or keep password checkbox
if ((m_Type == Password) && m_Keep) {
m_pGrid->addRowSpacing(8, 10);
m_pGrid->setRowStretch(8, 12);
TQCheckBox* const cb = new TQCheckBox(i18n("&Keep password"), m_pMain);
cb->setFixedSize(cb->sizeHint());
if (m_Keep > 1)
cb->setChecked(true);
else
m_Keep = 0;
connect(cb, TQT_SIGNAL(toggled(bool)), TQT_SLOT(slotKeep(bool)));
m_pGrid->addWidget(cb, 9, 2, AlignLeft|AlignVCenter);
} else if (m_Type == NewPassword) {
m_pGrid->addRowSpacing(8, 10);
lbl = new TQLabel(m_pMain);
lbl->setAlignment(AlignLeft|AlignVCenter);
lbl->setText(i18n("&Verify:"));
lbl->setFixedSize(lbl->sizeHint());
m_pGrid->addWidget(lbl, 9, 0, AlignLeft);
h_lay = new TQHBoxLayout();
m_pGrid->addLayout(h_lay, 9, 2);
m_pEdit2 = new KPasswordEdit(m_pMain);
lbl->setBuddy(m_pEdit2);
size = m_pEdit2->sizeHint();
m_pEdit2->setFixedHeight(size.height());
m_pEdit2->setMinimumWidth(size.width());
h_lay->addWidget(m_pEdit2);
// Row 6: Password strength meter
m_pGrid->addRowSpacing(10, 10);
m_pGrid->setRowStretch(10, 12);
TQHBox* const strengthBox = new TQHBox(m_pMain);
strengthBox->setSpacing(10);
m_pGrid->addMultiCellWidget(strengthBox, 11, 11, 0, 2);
TQLabel* const passStrengthLabel = new TQLabel(strengthBox);
passStrengthLabel->setAlignment(AlignLeft|AlignVCenter);
passStrengthLabel->setText(i18n("Password strength meter:"));
d->m_strengthBar = new KProgress(100, strengthBox, "PasswordStrengthMeter");
d->m_strengthBar->setPercentageVisible(false);
const TQString strengthBarWhatsThis(i18n("The password strength meter gives an indication of the security "
"of the password you have entered. To improve the strength of "
"the password, try:\n"
" - using a longer password;\n"
" - using a mixture of upper- and lower-case letters;\n"
" - using numbers or symbols, such as #, as well as letters."));
TQWhatsThis::add(passStrengthLabel, strengthBarWhatsThis);
TQWhatsThis::add(d->m_strengthBar, strengthBarWhatsThis);
// Row 6: Label saying whether the passwords match
m_pGrid->addRowSpacing(12, 10);
m_pGrid->setRowStretch(12, 12);
d->m_MatchLabel = new TQLabel(m_pMain);
d->m_MatchLabel->setAlignment(AlignLeft|AlignVCenter|WordBreak);
m_pGrid->addMultiCellWidget(d->m_MatchLabel, 13, 13, 0, 2);
d->m_MatchLabel->setText(i18n("Passwords do not match"));
connect( m_pEdit, TQT_SIGNAL(textChanged(const TQString&)), TQT_SLOT(enableOkBtn()) );
connect( m_pEdit2, TQT_SIGNAL(textChanged(const TQString&)), TQT_SLOT(enableOkBtn()) );
enableOkBtn();
}
erase();
}
KPasswordDialog::~KPasswordDialog()
{
delete d;
}
void KPasswordDialog::clearPassword()
{
m_pEdit->erase();
}
/* KDE 4: Make it const TQString & */
void KPasswordDialog::setPrompt(TQString prompt)
{
m_pHelpLbl->setText(prompt);
m_pHelpLbl->setFixedSize(275, m_pHelpLbl->heightForWidth(275));
}
TQString KPasswordDialog::prompt() const
{
return m_pHelpLbl->text();
}
/* KDE 4: Make them const TQString & */
void KPasswordDialog::addLine(TQString key, TQString value)
{
if (m_Row > 3)
return;
TQLabel *lbl = new TQLabel(key, m_pMain);
lbl->setAlignment(AlignLeft|AlignTop);
lbl->setFixedSize(lbl->sizeHint());
m_pGrid->addWidget(lbl, m_Row+2, 0, AlignLeft);
lbl = new TQLabel(value, m_pMain);
lbl->setAlignment(AlignTop|WordBreak);
lbl->setFixedSize(275, lbl->heightForWidth(275));
m_pGrid->addWidget(lbl, m_Row+2, 2, AlignLeft);
++m_Row;
}
void KPasswordDialog::erase()
{
m_pEdit->erase();
m_pEdit->setFocus();
if (m_Type == NewPassword)
m_pEdit2->erase();
}
void KPasswordDialog::slotOk()
{
if (m_Type == NewPassword) {
if (strcmp(m_pEdit->password(), m_pEdit2->password())) {
KMessageBox::sorry(this, i18n("You entered two different "
"passwords. Please try again."));
erase();
return;
}
if (d->m_strengthBar && d->m_strengthBar->progress() < d->passwordStrengthWarningLevel) {
int retVal = KMessageBox::warningContinueCancel(this,
i18n( "The password you have entered has a low strength. "
"To improve the strength of "
"the password, try:\n"
" - using a longer password;\n"
" - using a mixture of upper- and lower-case letters;\n"
" - using numbers or symbols as well as letters.\n"
"\n"
"Would you like to use this password anyway?"),
i18n("Low Password Strength"));
if (retVal == KMessageBox::Cancel) return;
}
}
if (!checkPassword(m_pEdit->password())) {
erase();
return;
}
accept();
}
void KPasswordDialog::slotCancel()
{
reject();
}
void KPasswordDialog::slotKeep(bool keep)
{
m_Keep = keep;
}
// static . antlarr: KDE 4: Make it const TQString & prompt
int KPasswordDialog::getPassword(TQCString &password, TQString prompt,
int *keep)
{
const bool enableKeep = (keep && *keep);
KPasswordDialog* const dlg = new KPasswordDialog(int(Password), prompt, enableKeep);
const int ret = dlg->exec();
if (ret == Accepted) {
password = dlg->password();
if (enableKeep)
*keep = dlg->keep();
}
delete dlg;
return ret;
}
// static . antlarr: KDE 4: Make it const TQString & prompt
int KPasswordDialog::getNewPassword(TQCString &password, TQString prompt)
{
KPasswordDialog* const dlg = new KPasswordDialog(NewPassword, prompt);
const int ret = dlg->exec();
if (ret == Accepted)
password = dlg->password();
delete dlg;
return ret;
}
// static
void KPasswordDialog::disableCoreDumps()
{
struct rlimit rlim;
rlim.rlim_cur = rlim.rlim_max = 0;
setrlimit(RLIMIT_CORE, &rlim);
}
void KPasswordDialog::virtual_hook( int id, void* data )
{ KDialogBase::virtual_hook( id, data ); }
void KPasswordDialog::enableOkBtn()
{
if (m_Type == NewPassword) {
const bool match = strcmp(m_pEdit->password(), m_pEdit2->password()) == 0
&& (d->allowEmptyPasswords || m_pEdit->password()[0]);
const TQString pass(m_pEdit->password());
const int minPasswordLength = minimumPasswordLength();
if ((int) pass.length() < minPasswordLength) {
enableButtonOK(false);
} else {
enableButtonOK( match );
}
if ( match && d->allowEmptyPasswords && m_pEdit->password()[0] == 0 ) {
d->m_MatchLabel->setText( i18n("Password is empty") );
} else {
if ((int) pass.length() < minPasswordLength) {
d->m_MatchLabel->setText(i18n("Password must be at least 1 character long", "Password must be at least %n characters long", minPasswordLength));
} else {
d->m_MatchLabel->setText( match? i18n("Passwords match")
:i18n("Passwords do not match") );
}
}
// Password strength calculator
// Based on code in the Master Password dialog in Firefox
// (pref-masterpass.js)
// Original code triple-licensed under the MPL, GPL, and LGPL
// so is license-compatible with this file
const double lengthFactor = d->reasonablePasswordLength / 8.0;
int pwlength = (int) (pass.length() / lengthFactor);
if (pwlength > 5) pwlength = 5;
const TQRegExp numRxp("[0-9]", true, false);
int numeric = (int) (pass.contains(numRxp) / lengthFactor);
if (numeric > 3) numeric = 3;
const TQRegExp symbRxp("\\W", false, false);
int numsymbols = (int) (pass.contains(symbRxp) / lengthFactor);
if (numsymbols > 3) numsymbols = 3;
const TQRegExp upperRxp("[A-Z]", true, false);
int upper = (int) (pass.contains(upperRxp) / lengthFactor);
if (upper > 3) upper = 3;
int pwstrength=((pwlength*10)-20) + (numeric*10) + (numsymbols*15) + (upper*10);
if ( pwstrength < 0 ) {
pwstrength = 0;
}
if ( pwstrength > 100 ) {
pwstrength = 100;
}
d->m_strengthBar->setProgress(pwstrength);
}
}
void KPasswordDialog::setAllowEmptyPasswords(bool allowed) {
d->allowEmptyPasswords = allowed;
enableOkBtn();
}
bool KPasswordDialog::allowEmptyPasswords() const {
return d->allowEmptyPasswords;
}
void KPasswordDialog::setMinimumPasswordLength(int minLength) {
d->minimumPasswordLength = minLength;
enableOkBtn();
}
int KPasswordDialog::minimumPasswordLength() const {
return d->minimumPasswordLength;
}
void KPasswordDialog::setMaximumPasswordLength(int maxLength) {
if (maxLength < 0) maxLength = 0;
if (maxLength >= KPasswordEdit::PassLen) maxLength = KPasswordEdit::PassLen - 1;
d->maximumPasswordLength = maxLength;
m_pEdit->setMaxPasswordLength(maxLength);
if (m_pEdit2) m_pEdit2->setMaxPasswordLength(maxLength);
}
int KPasswordDialog::maximumPasswordLength() const {
return d->maximumPasswordLength;
}
// reasonable password length code contributed by Steffen Mthing
void KPasswordDialog::setReasonablePasswordLength(int reasonableLength) {
if (reasonableLength < 1) reasonableLength = 1;
if (reasonableLength >= maximumPasswordLength()) reasonableLength = maximumPasswordLength();
d->reasonablePasswordLength = reasonableLength;
}
int KPasswordDialog::reasonablePasswordLength() const {
return d->reasonablePasswordLength;
}
void KPasswordDialog::setPasswordStrengthWarningLevel(int warningLevel) {
if (warningLevel < 0) warningLevel = 0;
if (warningLevel > 99) warningLevel = 99;
d->passwordStrengthWarningLevel = warningLevel;
}
int KPasswordDialog::passwordStrengthWarningLevel() const {
return d->passwordStrengthWarningLevel;
}
#include "kpassdlg.moc"
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