- last login name is saved

- wait image should be displayed right now
- the qApp object is destroyed before the launcher is started -- this
  should prevent some semaphore permission problems
- added a (very basic) crash handler
- added a simple "respawned too fast" detection in case of qt/e fb problems
- if opie-login is started with -a <user> or --autologin <user> it doesn't
  prompt for a username/password - instead it loads qpe directly using the
  specified user account
  So even if you are not running multiuser, you should now start qpe with:
  opie-login --autologin=root

1 files changed, 51 insertions, 219 deletions

diff --git a/core/opie-login/loginwindowimpl.cpp b/core/opie-login/loginwindowimpl.cpp
index c59338f..3694513 100644
--- a/core/opie-login/loginwindowimpl.cpp
+++ b/core/opie-login/loginwindowimpl.cpp
@@ -13,27 +13,15 @@
 
 #include <qpe/resource.h>
 #include <qpe/qcopenvelope_qws.h>
+#include <qpe/config.h>
 
 #include <opie/odevice.h>
 
 #include <stdio.h>
-
-#include <pwd.h>
-#include <grp.h>
-#include <unistd.h>
 #include <stdlib.h>
-#include <signal.h>
-
-#ifdef USEPAM
-extern "C" {
-#include <security/pam_appl.h>
-}
-#else
-#include <crypt.h>
-#include <shadow.h>
-#endif
 
 #include "loginwindowimpl.h"
+#include "loginapplication.h"
 #include "inputmethods.h"
 
 using namespace Opie;
@@ -54,7 +42,7 @@ LoginWindowImpl::LoginWindowImpl ( ) : LoginWindow ( 0, "LOGIN-WINDOW", WStyle_C
 	setActiveWindow ( );
 	m_password-> setFocus ( );
 
-	m_user-> insertStringList ( getAllUsers ( ));
+	m_user-> insertStringList ( lApp-> allUsers ( ));
 
 	QTimer::singleShot ( 0, this, SLOT( showIM ( )));
 
@@ -65,6 +53,13 @@ LoginWindowImpl::LoginWindowImpl ( ) : LoginWindow ( 0, "LOGIN-WINDOW", WStyle_C
 		setBackgroundPixmap ( bgpix );
 
 	m_caption-> setText ( m_caption-> text ( ) + tr( "<center>%1 %2</center>" ). 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 );
 }
 
 LoginWindowImpl::~LoginWindowImpl ( )
@@ -90,22 +85,6 @@ void LoginWindowImpl::toggleEchoMode ( bool t )
 	m_password-> setEchoMode ( t ? QLineEdit::Normal : QLineEdit::Password );
 }
 
-
-QStringList LoginWindowImpl::getAllUsers ( )
-{
-	struct passwd *pwd;
-	QStringList sl;
-
-	while (( pwd = ::getpwent ( ))) {
-		if (( pwd-> pw_uid == 0 ) || ( pwd-> pw_uid >= 500 && pwd-> pw_uid < 65534 ))
-			sl << QString ( pwd-> pw_name );
-	}
-
-	::endpwent ( );
-
-	return sl;
-}
-
 void LoginWindowImpl::showIM ( )
 {
 	m_input-> showInputMethod ( );
@@ -118,8 +97,7 @@ void LoginWindowImpl::restart ( )
 
 void LoginWindowImpl::quit ( )
 {
-	qApp-> quit ( );
-	::kill ( ::getppid ( ), SIGUSR1 );
+	lApp-> quitToConsole ( );
 }
 
 void LoginWindowImpl::suspend ( )
@@ -136,207 +114,61 @@ void LoginWindowImpl::backlight ( )
 	e << -2; // toggle
 }
 
-#ifdef USEPAM
-
-static const char *_PAM_SERVICE = "xdm";
-static const char *PAM_password;
-
-typedef const struct pam_message pam_message_type;
-
-static int PAM_conv( int, pam_message_type **,  struct pam_response **,  void * );
-
-static struct pam_conv PAM_conversation = {
-  &PAM_conv,
-  NULL
-};
-
-//----------------------------------------------------------------------------
-
-static char *COPY_STRING( const char * s ) {
-  return (s) ? strdup(s) : (char *)NULL;
-}
-
-#define GET_MEM if (reply) realloc(reply, size);\
-                     else reply = (struct pam_response *)malloc(size); \
-	             if (!reply) return PAM_CONV_ERR; \
-	             size += sizeof(struct pam_response)
-
-
-static int PAM_conv( int num_msg, pam_message_type **msg,
-		     struct pam_response **resp,  void *)
-{
-  int count = 0, replies = 0;
-  struct pam_response *reply = NULL;
-  int size = sizeof(struct pam_response);
-
-  for( count = 0; count < num_msg; count++ ) {
-    switch (msg[count]->msg_style) {
-    case PAM_PROMPT_ECHO_ON:
-      /* user name given to PAM already */
-      return PAM_CONV_ERR;
-
-    case PAM_PROMPT_ECHO_OFF:
-      /* wants password */
-      GET_MEM;
-      reply[replies].resp_retcode = PAM_SUCCESS;
-      reply[replies].resp = COPY_STRING(PAM_password);
-      replies++;
-      /* PAM frees resp */
-      break;
-    case PAM_TEXT_INFO:
-      break;
-    default:
-      /* unknown or PAM_ERROR_MSG */
-      if (reply) free (reply);
-      return PAM_CONV_ERR;
-    }
-  }
-  if (reply) *resp = reply;
-  return PAM_SUCCESS;
-}
-
-
-static bool pwcheck_PAM( const char *user, const char *password )
-{
-  bool pw_correct = false;
-  int pam_error;
-  int pam_return = 0;
-  pam_handle_t *pamh = 0;
-  PAM_password = password;
-
-  pam_error = pam_start( _PAM_SERVICE, user, &PAM_conversation, &pamh );
-  if( pam_error == PAM_SUCCESS ) {
-    pam_error = pam_authenticate( pamh, 0 );
-    if( pam_error == PAM_SUCCESS ) {
-      //-- password correct
-      pw_correct = true;
-      pam_return = PAM_SUCCESS;
-    } else {
-      pam_return = pam_error;
-    }
-  } else {
-    //  cerr << "PAM error: " << pam_strerror( pamh, pam_error ) << endl;
-  }
-  pam_end( pamh, pam_return );
-  return pw_correct;
-}
-
-#else
-
-//----------------------------------------------------------------------------
-
-static bool pwcheck_Unix( const char *user, const char *pass )
-{
-	char *encrypted, *correct;
-	struct passwd *pw;
-
-	if ( !user || !pass )
-		return false;
-
-	pw = getpwnam ( user );
-
-	if ( !pw )
-		return false;
-
-	if (( strcmp ( pw-> pw_passwd, "x" ) == 0 ) || ( strcmp ( pw-> pw_passwd, "*" ) == 0 )) {
-		struct spwd *sp = getspnam ( pw-> pw_name );
-
-		if ( !sp )
-			return false;
-
-		correct = sp-> sp_pwdp;
+class WaitLogo : public QLabel {
+public:
+	WaitLogo ( ) : QLabel ( 0, "wait hack!", WStyle_Customize | WStyle_NoBorder | WStyle_Tool )
+	{
+		QImage img = Resource::loadImage ( "launcher/new_wait" );
+		QPixmap pix;
+		pix. convertFromImage ( img );
+		setPixmap ( pix );
+		setAlignment ( AlignCenter );
+		move ( 0, 0 );
+		resize ( qApp-> desktop ( )-> width ( ), qApp-> desktop ( )-> height ( ));
+		
+		m_visible = false;
+		show ( );
 	}
-	else
-		correct = pw-> pw_passwd;
-
-	if ( correct == 0 || correct[0] == '\0' )
-		return true;
 
-	encrypted = crypt ( pass, correct );
-	return ( strcmp ( encrypted, correct ) == 0 );
-}
-
-#endif
-
-
-bool LoginWindowImpl::changeIdentity ( const char *user )
-{
-	const char *DEFAULT_LOGIN_PATH      = "/bin:/usr/bin";
-	const char *DEFAULT_ROOT_LOGIN_PATH = "/usr/sbin:/bin:/usr/bin:/sbin";
-
-	bool fail = false;
-	struct passwd *pw = getpwnam ( user );
-
-	fail |= ( pw == 0 );
-	fail |= ( initgroups ( pw-> pw_name, pw-> pw_gid ));
-	endgrent ( );
-	fail |= ( setgid ( pw-> pw_gid ));
-	fail |= ( setuid ( pw-> pw_uid ));
-
-	fail |= ( chdir ( pw-> pw_dir ) && chdir ( "/" ));
+	virtual void showEvent ( QShowEvent *e )
+	{
+		QLabel::showEvent ( e );
+		m_visible = true;
+	}
 
-	fail |= ( setenv ( "HOME",    pw-> pw_dir, 1 ));
-	fail |= ( setenv ( "SHELL",   pw-> pw_shell, 1 ));
-	fail |= ( setenv ( "USER",    pw-> pw_name, 1 ));
-	fail |= ( setenv ( "LOGNAME", pw-> pw_name, 1 ));
-	fail |= ( setenv ( "PATH",    ( pw-> pw_uid ? DEFAULT_LOGIN_PATH : DEFAULT_ROOT_LOGIN_PATH ), 1 ));
+	virtual void paintEvent ( QPaintEvent *e )
+	{
+		QLabel::paintEvent ( e );
+		if ( m_visible )
+			qApp-> quit ( );
+	}
 
-	return !fail;
-}
+private:
+	bool m_visible;
+};
 
 void LoginWindowImpl::login ( )
 {
 	const char *user = ::strdup ( m_user-> currentText ( ). local8Bit ( ));
 	const char *pass = ::strdup ( m_password-> text ( ). local8Bit ( ));
-	bool ok;
 
 	if ( !user || !user [0] )
 		return;
 	if ( !pass )
 		pass = "";
 
-#if defined( USEPAM )
-	ok = pwcheck_PAM ( user, pass );
-#else
-	ok = pwcheck_Unix ( user, pass );
-#endif
-
-	if ( ok ) {
-		if ( changeIdentity ( user )) {
-			// Draw a big wait icon, the image can be altered in later revisions
-			QWidget *d = QApplication::desktop ( );
-			m_input-> hideInputMethod ( );
-
-			QImage img = Resource::loadImage( "launcher/new_wait" );
-			QPixmap pix;
-			pix. convertFromImage ( img );
-			QLabel *w = new QLabel ( 0, "wait hack!", WStyle_Customize | WStyle_NoBorder | WStyle_Tool );
-			w-> setPixmap ( pix );
-			w-> setAlignment ( AlignCenter );
-			w-> showMaximized ( );
-			qApp-> processEvents ( );
-
-			char *opie = ::getenv ( "OPIEDIR" );
-			char *arg = new char [::strlen ( opie ) + 8 + 1];
-
-			::strcpy ( arg, opie );
-			::strcat ( arg, "/bin/qpe" );
-
-			// start qpe via a login shell
-			::execl ( "/bin/sh", "-sh", "-c", arg, 0 );
-
-			w-> hide ( );
-			delete w;
-
-			QMessageBox::critical ( this, tr( "Failure" ), tr( "Could not start OPIE\n(%1)." ). arg ( arg ));
-			delete [] arg;
-
-			restart ( );
-		}
-		else {
-			QMessageBox::critical ( this, tr( "Failure" ), tr( "Could not switch to new user identity" ));
-			restart ( );
-		}
+	if ( lApp-> checkPassword ( user, pass )) {
+		Config cfg ( "opie-login" );
+		cfg. setGroup ( "General" );
+		cfg. writeEntry ( "LastLogin", user );
+		cfg. write ( );
+
+		lApp-> setLoginAs ( user );
+
+		// Draw a big wait icon, the image can be altered in later revisions
+		m_input-> hideInputMethod ( );
+		new WaitLogo ( );
+		// WaitLogo::showEvent() calls qApp-> quit()
 	}
 	else {
 		QMessageBox::warning ( this, tr( "Wrong password" ), tr( "The given password is incorrect." ));