Add setting a root password if none is set to opie-login

If you directly start Opie-Taskbar or use AutoLogin
you will not be presented by a set root password gui

7 files changed, 541 insertions, 2 deletions

diff --git a/core/opie-login/.cvsignore b/core/opie-login/.cvsignore
index 0c3cc62..b80bdc4 100644
--- a/core/opie-login/.cvsignore
+++ b/core/opie-login/.cvsignore
@@ -1,7 +1,9 @@
 *.moc
 Makefile*
 loginwindow.cpp
 loginwindow.h
+passworddialog.h
+passworddialog.cpp
 moc_*
 .moc
 .obj
diff --git a/core/opie-login/loginwindowimpl.cpp b/core/opie-login/loginwindowimpl.cpp
index 32f98f3..73c2cbe 100644
--- a/core/opie-login/loginwindowimpl.cpp
+++ b/core/opie-login/loginwindowimpl.cpp
@@ -44,12 +44,13 @@
 
 #include <opie2/odevice.h>
 
 #include <stdio.h>
 #include <stdlib.h>
 
+#include "passworddialogimpl.h"
 #include "loginwindowimpl.h"
 #include "loginapplication.h"
 #include "inputmethods.h"
 
 using namespace Opie::Core;
 
@@ -87,22 +88,27 @@ LoginWindowImpl::LoginWindowImpl ( ) : LoginWindow ( 0, "LOGIN-WINDOW", WStyle_C
 		setBackgroundPixmap ( bgpix );
 		m_caption-> setBackgroundPixmap ( bgpix);
 		TextLabel1-> setBackgroundPixmap ( bgpix);
 		TextLabel2-> setBackgroundPixmap ( bgpix);
 	}
 
-	m_caption-> setText ( tr("<center>Welcome to OPIE %1</center><center>& %2 %3</center>"). arg(QPE_VERSION). arg ( ODevice::inst ( )-> systemString ( )). arg ( ODevice::inst ( )-> systemVersionString ( )));
+//	m_caption-> setText ( tr("<center>Welcome to OPIE %1</center><center>& %2 %3</center>"). arg(QPE_VERSION). arg ( ODevice::inst ( )-> systemString ( )). arg ( ODevice::inst ( )-> systemVersionString ( )));
 
 	Config cfg ( "opie-login" );
 	cfg. setGroup ( "General" );
 	QString last = cfg. readEntry ( "LastLogin" );
 
 	if ( !last. isEmpty ( ))
 		m_user-> setEditText ( last );
 
 	calcMaxWindowRect ( );
+
+        if ( PasswordDialogImpl::needDialog() )
+            QTimer::singleShot(10, this,  SLOT(showPasswordDialog()) );
+
+
 }
 
 LoginWindowImpl::~LoginWindowImpl ( )
 {
 }
 
@@ -245,6 +251,12 @@ void LoginWindowImpl::login ( )
 	}
 	else {
 		QMessageBox::warning ( this, tr( "Wrong password" ), tr( "The given password is incorrect." ));
 		m_password-> clear ( );
 	}
 }
+
+void LoginWindowImpl::showPasswordDialog() {
+    PasswordDialogImpl dia( this );
+    dia.showMaximized();
+    dia.exec();
+}
diff --git a/core/opie-login/loginwindowimpl.h b/core/opie-login/loginwindowimpl.h
index df8dbbb..1de212c 100644
--- a/core/opie-login/loginwindowimpl.h
+++ b/core/opie-login/loginwindowimpl.h
@@ -46,12 +46,13 @@ protected slots:
 	void suspend ( );
 	void backlight ( );
 	void login ( );
 	void toggleEchoMode ( bool );
 	void calcMaxWindowRect ( );
 	void receive ( const QCString &, const QByteArray & );
+        void showPasswordDialog();
 
 protected:
 	virtual void keyPressEvent ( QKeyEvent *e );
 
 	QStringList getAllUsers ( );
 	bool changeIdentity ( const char *user );
diff --git a/core/opie-login/opie-login.pro b/core/opie-login/opie-login.pro
index 63d4481..175d0b6 100644
--- a/core/opie-login/opie-login.pro
+++ b/core/opie-login/opie-login.pro
@@ -1,21 +1,23 @@
 TEMPLATE    = app
 CONFIG      = qt warn_on  usepam
 
 HEADERS     = loginwindowimpl.h \
               loginapplication.h \
+	      passworddialogimpl.h   \
               ../launcher/inputmethods.h \
               ../apps/calibrate/calibrate.h
 
 SOURCES     = loginwindowimpl.cpp \
               loginapplication.cpp \
+              passworddialogimpl.cpp   \
               ../launcher/inputmethods.cpp \
               ../apps/calibrate/calibrate.cpp \
               main.cpp
 
-INTERFACES  = loginwindow.ui
+INTERFACES  = loginwindow.ui passworddialog.ui
 
 INCLUDEPATH += $(OPIEDIR)/include ../launcher ../apps/calibrate
 DEPENDPATH  += $(OPIEDIR)/include ../launcher ../apps/calibrate
 
 LIBS        += -lqpe -lopiecore2
 
diff --git a/core/opie-login/passworddialog.ui b/core/opie-login/passworddialog.ui
new file mode 100644
index 0000000..f2b2c88
--- a/dev/null
+++ b/core/opie-login/passworddialog.ui
@@ -0,0 +1,225 @@
+<!DOCTYPE UI><UI>
+<class>PasswordDialog</class>
+<widget>
+    <class>QDialog</class>
+    <property stdset="1">
+        <name>name</name>
+        <cstring>PasswordDialog</cstring>
+    </property>
+    <property stdset="1">
+        <name>geometry</name>
+        <rect>
+            <x>0</x>
+            <y>0</y>
+            <width>625</width>
+            <height>277</height>
+        </rect>
+    </property>
+    <property stdset="1">
+        <name>caption</name>
+        <string>Set Password</string>
+        <comment>Caption of the password dialog</comment>
+    </property>
+    <property>
+        <name>layoutMargin</name>
+    </property>
+    <property>
+        <name>layoutSpacing</name>
+    </property>
+    <grid>
+        <property stdset="1">
+            <name>margin</name>
+            <number>4</number>
+        </property>
+        <property stdset="1">
+            <name>spacing</name>
+            <number>4</number>
+        </property>
+        <widget row="0"  column="0" >
+            <class>QLabel</class>
+            <property stdset="1">
+                <name>name</name>
+                <cstring>m_header</cstring>
+            </property>
+            <property stdset="1">
+                <name>text</name>
+                <string>&lt;qt&gt;&lt;h2&gt;Please set a password for the Superuser.&lt;/h2&gt;&lt;/qt&gt;</string>
+            </property>
+        </widget>
+        <widget row="1"  column="0" >
+            <class>QLayoutWidget</class>
+            <property stdset="1">
+                <name>name</name>
+                <cstring>Layout5</cstring>
+            </property>
+            <grid>
+                <property stdset="1">
+                    <name>margin</name>
+                    <number>0</number>
+                </property>
+                <property stdset="1">
+                    <name>spacing</name>
+                    <number>6</number>
+                </property>
+                <widget row="0"  column="1" >
+                    <class>QLineEdit</class>
+                    <property stdset="1">
+                        <name>name</name>
+                        <cstring>m_pass</cstring>
+                    </property>
+                    <property stdset="1">
+                        <name>echoMode</name>
+                        <enum>Password</enum>
+                    </property>
+                </widget>
+                <widget row="0"  column="0" >
+                    <class>QLabel</class>
+                    <property stdset="1">
+                        <name>name</name>
+                        <cstring>m_passLabel</cstring>
+                    </property>
+                    <property stdset="1">
+                        <name>text</name>
+                        <string>&lt;b&gt;Password:&lt;/b&gt;</string>
+                    </property>
+                    <property>
+                        <name>buddy</name>
+                        <cstring>m_pass</cstring>
+                    </property>
+                </widget>
+                <widget row="0"  column="2" >
+                    <class>QToolButton</class>
+                    <property stdset="1">
+                        <name>name</name>
+                        <cstring>ToolButton3</cstring>
+                    </property>
+                    <property stdset="1">
+                        <name>text</name>
+                        <string></string>
+                    </property>
+                    <property stdset="1">
+                        <name>pixmap</name>
+                        <pixmap>image0</pixmap>
+                    </property>
+                    <property stdset="1">
+                        <name>toggleButton</name>
+                        <bool>true</bool>
+                    </property>
+                    <property stdset="1">
+                        <name>toggleButton</name>
+                        <bool>true</bool>
+                    </property>
+                </widget>
+                <widget row="1"  column="3" >
+                    <class>QToolButton</class>
+                    <property stdset="1">
+                        <name>name</name>
+                        <cstring>ToolButton1_2</cstring>
+                    </property>
+                    <property stdset="1">
+                        <name>text</name>
+                        <string></string>
+                    </property>
+                    <property stdset="1">
+                        <name>pixmap</name>
+                        <pixmap>image1</pixmap>
+                    </property>
+                </widget>
+                <widget row="1"  column="1" >
+                    <class>QLineEdit</class>
+                    <property stdset="1">
+                        <name>name</name>
+                        <cstring>m_confirm</cstring>
+                    </property>
+                    <property stdset="1">
+                        <name>echoMode</name>
+                        <enum>Password</enum>
+                    </property>
+                </widget>
+                <widget row="0"  column="3" >
+                    <class>QToolButton</class>
+                    <property stdset="1">
+                        <name>name</name>
+                        <cstring>ToolButton1</cstring>
+                    </property>
+                    <property stdset="1">
+                        <name>text</name>
+                        <string></string>
+                    </property>
+                    <property stdset="1">
+                        <name>pixmap</name>
+                        <pixmap>image1</pixmap>
+                    </property>
+                </widget>
+                <widget row="1"  column="0" >
+                    <class>QLabel</class>
+                    <property stdset="1">
+                        <name>name</name>
+                        <cstring>m_confirmLbl</cstring>
+                    </property>
+                    <property stdset="1">
+                        <name>text</name>
+                        <string>&lt;b&gt;Confirm:&lt;/b&gt;</string>
+                    </property>
+                </widget>
+            </grid>
+        </widget>
+        <spacer row="2"  column="0" >
+            <property>
+                <name>name</name>
+                <cstring>Spacer2</cstring>
+            </property>
+            <property stdset="1">
+                <name>orientation</name>
+                <enum>Vertical</enum>
+            </property>
+            <property stdset="1">
+                <name>sizeType</name>
+                <enum>Expanding</enum>
+            </property>
+            <property>
+                <name>sizeHint</name>
+                <size>
+                    <width>20</width>
+                    <height>20</height>
+                </size>
+            </property>
+        </spacer>
+    </grid>
+</widget>
+<images>
+    <image>
+        <name>image0</name>
+        <data format="XPM.GZ" length="394">789cd3d7528808f055d0d2e72a2e492cc94c5648ce482c52d04a29cdcdad8c8eb5ade6523234530022230543251d2e253d856405bffcbc54105b19c856360003b0141a808a2983b03284848a298304c108240e15033141045829580cac07ac4e590f5d0c22a4876caf32d45898797a48044caf32c22948e629c39d0457a78ce60f65b8f104ec50d6c366af1e865eb4b0aab5e602008bcd444d</data>
+    </image>
+    <image>
+        <name>image1</name>
+        <data format="XPM.GZ" length="341">789c558fcd0a02310c84ef7d8ad0b915c9bae84d7c04c5a3201e4275d1c32ab8eb41c477b73fa96e43a1f30d4d266d1ced771b728d194619af9efc451ee44ecfbe7f1d8eebb7b1ed92c259506b67c63279dade6fe7a81134e6a9224ac4ae2bc85565075004901c8820731069a648b490effc26eac4a25dcc195373c94231b87a8349fabf894b7a3d27a76af8cf01eb0e534757d70da1bf8a933f2bf30509e84b68</data>
+    </image>
+</images>
+<connections>
+    <connection>
+        <sender>ToolButton3</sender>
+        <signal>toggled(bool)</signal>
+        <receiver>PasswordDialog</receiver>
+        <slot>slotToggleEcho(bool)</slot>
+    </connection>
+    <connection>
+        <sender>ToolButton1</sender>
+        <signal>clicked()</signal>
+        <receiver>m_pass</receiver>
+        <slot>clear()</slot>
+    </connection>
+    <connection>
+        <sender>ToolButton1_2</sender>
+        <signal>clicked()</signal>
+        <receiver>m_confirm</receiver>
+        <slot>clear()</slot>
+    </connection>
+    <slot access="protected">slotToggleEcho(bool)</slot>
+</connections>
+<tabstops>
+    <tabstop>m_pass</tabstop>
+    <tabstop>m_confirm</tabstop>
+</tabstops>
+</UI>
diff --git a/core/opie-login/passworddialogimpl.cpp b/core/opie-login/passworddialogimpl.cpp
new file mode 100644
index 0000000..aeb7516
--- a/dev/null
+++ b/core/opie-login/passworddialogimpl.cpp
@@ -0,0 +1,232 @@
+/*
+               =.            This file is part of the OPIE Project
+             .=l.            Copyright (c)  2004 Holger Hans Peter Freyther <zecke@handhelds.org>
+           .>+-=
+ _;:,     .>    :=|.         This file is free software; you can
+.> <`_,   >  .   <=          redistribute it and/or modify it under
+:`=1 )Y*s>-.--   :           the terms of the GNU General Public
+.="- .-=="i,     .._         License as published by the Free Software
+ - .   .-<_>     .<>         Foundation; either version 2 of the License,
+     ._= =}       :          or (at your option) any later version.
+    .%`+i>       _;_.
+    .i_,=:_.      -<s.       This file 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 file;
+  -_. . .   )=.  =           see the file COPYING. If not, write to the
+    --        :-=`           Free Software Foundation, Inc.,
+                             59 Temple Place - Suite 330,
+                             Boston, MA 02111-1307, USA.
+
+*/
+
+
+#include <qlayout.h>
+#include <qlabel.h>
+#include <qlineedit.h>
+#include <qvalidator.h>
+#include <qmessagebox.h>
+#include <qhbox.h>
+#include <qtoolbutton.h>
+
+#include <sys/types.h>
+#include <pwd.h>
+#include <shadow.h>
+#include <stdio.h>
+#include <time.h>
+#include <unistd.h>
+
+
+#include "passworddialogimpl.h"
+
+
+// This function is taken from 'busybox'.
+static int i64c(int i) {
+    if (i <= 0)
+        return ('.');
+    if (i == 1)
+        return ('/');
+    if (i >= 2 && i < 12)
+        return ('0' - 2 + i);
+    if (i >= 12 && i < 38)
+        return ('A' - 12 + i);
+    if (i >= 38 && i < 63)
+        return ('a' - 38 + i);
+    return ('z');
+}
+
+// This function is taken from 'busybox'.
+static char *crypt_make_salt() {
+    time_t now;
+    static unsigned long x;
+    static char result[3];
+
+    ::time(&now);
+    x += now + getpid() + clock();
+    result[0] = i64c(((x >> 18) ^ (x >> 6)) & 077);
+    result[1] = i64c(((x >> 12) ^ x) & 077);
+    result[2] = '\0';
+    return result;
+}
+
+/*
+ * Modal dialog to force root password. It is quite hard as it only leave
+ * when a password is set.
+ * Also it prevalidates the password...
+ */
+PasswordDialogImpl::PasswordDialogImpl( QWidget* parent )
+    : PasswordDialog( parent, 0, true ), m_isSet( PasswordDialogImpl::needDialog() ) {
+}
+
+PasswordDialogImpl::~PasswordDialogImpl() {
+    /* qt does the stuff for us */
+}
+
+void PasswordDialogImpl::done(int res) {
+    m_isSet = true;
+
+    /*
+     * The user hit 'Ok' see if we can safe the file
+     * if not an error will be raised and m_isSet altered.
+     * On cancel we will see if it is now ok...
+     */
+    if ( res == Accepted )
+        writePassword();
+    else if(PasswordDialogImpl::needDialog() ) {
+        switch( QMessageBox::warning(this,tr("Trying to leave without password set") ,
+                                     tr("<qt>No password was set. This could lead to you not beeing"
+                                        "able to remotely connect to your machine."
+                                        "Do you want to continue not setting a password?</qt>" ),
+                                     QMessageBox::Ok, QMessageBox::Cancel ) ) {
+        case QMessageBox::Cancel:
+            m_isSet = false;
+            break;
+        case  QMessageBox::Ok:
+        default:
+            break;
+        }
+
+    }
+
+    if(m_isSet)
+        PasswordDialog::done( res );
+}
+
+/*
+ * Lets see if we can write either shadow
+ *
+ */
+/**
+ * CRYPT the password and then tries to write it either to the shadow password
+ * or  to the plain /etc/passwd
+ */
+void PasswordDialogImpl::writePassword() {
+    /*
+     * Check if both texts are the same
+     */
+    if ( m_pass->text() != m_confirm->text() )
+        return error( tr("Passwords don't match"),
+                      tr("<qt>The two passwords don't match. Please try again.</qt>") );
+
+
+    /*
+     * Now crypt the password so we can write it later
+     */
+    char* password = ::crypt( m_pass->text().latin1(), crypt_make_salt() );
+
+    if ( !password )
+        return error( tr("Password not legal" ),
+                      tr("<qt>The entered password is not a valid password."
+                         "Please try entering a valid password.</qt>" ) );
+
+    /* rewind and rewrite the password file */
+    ::setpwent();
+
+    FILE* file = ::fopen( "/etc/passwd.new", "w" );
+    struct passwd* pass;
+    while ( (pass = ::getpwent()) != 0l ) {
+        /* no  shadow password support */
+        if ( pass->pw_uid == 0  )
+            pass->pw_passwd = password;
+
+        ::putpwent( pass, file );
+    }
+
+    ::fclose( file );
+    ::endpwent();
+    ::unlink("/etc/passwd");
+    ::rename("/etc/passwd.new","/etc/passwd" );
+
+    /* should be done now */
+#ifdef  OPIE_LOGIN_SHADOW_PW
+    #error "Can't write Shadow Passwords fixme"
+#endif
+}
+
+/**
+ * Raise an error. Delete input and set the focus after showing
+ * the error to the user
+ */
+void PasswordDialogImpl::error( const QString& caption, const QString& text ) {
+    m_isSet = false;
+    QMessageBox::critical(this,caption, text,
+                          QMessageBox::Ok, QMessageBox::NoButton );
+
+    m_pass->setText("");
+    m_pass->setFocus();
+
+    m_confirm->setText("");
+}
+
+void PasswordDialogImpl::slotToggleEcho( bool b ) {
+    m_pass->   setEchoMode( b ? QLineEdit::Normal : QLineEdit::Password );
+    m_confirm->setEchoMode( b ? QLineEdit::Normal : QLineEdit::Password );
+}
+
+/////////////////////////
+/// static functions
+///
+
+/**
+ * Ask whether or not we need to show the dialog. It returns true if
+ * no root password is set so that the user will be able to set one.
+ */
+bool PasswordDialogImpl::needDialog() {
+   /*
+    * This can cope with no password and shadow passwords
+    * Let us go through the user database until we find  'root' and then
+    * see if it is 'shadow' and see if shadow is empty or see if the password is empty
+    */
+    bool need = false;
+    struct passwd *pwd;
+    ::setpwent();
+
+    while((pwd = ::getpwent() ) ) {
+        /* found root */
+        if( pwd->pw_uid == 0 ) {
+            QString str = QString::fromLatin1(pwd->pw_passwd );
+
+            /*
+             * If str is really empty it is passwordless anyway...
+             * else it is shadow based
+             */
+            if(str.isEmpty() )
+                need = true;
+            else if ( str == '*' || str == 'x' )
+#ifdef OPIE_LOGIN_SHADOW_PW
+                need =  QString::fromLatin1( ::getspnam( pwd->pw_name )->sp_pwdp ).isEmpty();
+#else
+            ;
+#endif
+            break;
+        }
+    }
+    ::endpwent();
+
+    return need;
+}
diff --git a/core/opie-login/passworddialogimpl.h b/core/opie-login/passworddialogimpl.h
new file mode 100644
index 0000000..f8953dd
--- a/dev/null
+++ b/core/opie-login/passworddialogimpl.h
@@ -0,0 +1,65 @@
+/*
+               =.            This file is part of the OPIE Project
+             .=l.            Copyright (c)  2004 Holger Hans Peter Freyther <zecke@handhelds.org>
+           .>+-=
+ _;:,     .>    :=|.         This file is free software; you can
+.> <`_,   >  .   <=          redistribute it and/or modify it under
+:`=1 )Y*s>-.--   :           the terms of the GNU General Public
+.="- .-=="i,     .._         License as published by the Free Software
+ - .   .-<_>     .<>         Foundation; either version 2 of the License,
+     ._= =}       :          or (at your option) any later version.
+    .%`+i>       _;_.
+    .i_,=:_.      -<s.       This file 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 file;
+  -_. . .   )=.  =           see the file COPYING. If not, write to the
+    --        :-=`           Free Software Foundation, Inc.,
+                             59 Temple Place - Suite 330,
+                             Boston, MA 02111-1307, USA.
+
+*/
+
+
+#ifndef OPIE_LOGIN_PASSWORDIMPL_DIALOG_H
+#define OPIE_LOGIN_PASSWORDIMPL_DIALOG_H
+
+#include "passworddialog.h"
+
+
+class QLineEdit;
+/**
+ * Small Dialog and Class to set the root password if it
+ * is not empty.
+ * \code
+ * if(PasswordDialogImpl::needDialog()) {
+ *   PasswordDialogImpl *dia = new PasswordDialogImpl()
+ *   dia->exec();
+ *   dia->delete();
+ * }
+ */
+class PasswordDialogImpl : public PasswordDialog {
+    Q_OBJECT
+public:
+    PasswordDialogImpl( QWidget *parent );
+    ~PasswordDialogImpl();
+    static bool needDialog();
+
+protected slots:
+    void done( int );
+    void slotToggleEcho( bool );
+
+private:
+    void writePassword();
+    void writeShadow();
+    void error( const QString&, const QString& );
+    bool m_isSet : 1;
+};
+
+
+#endif