summaryrefslogtreecommitdiffstats
path: root/tdm/kfrontend/sakdlg.cc
blob: 8ba04697e915b44ce5385e66e5b547eee543d915 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
//===========================================================================
//
// This file is part of the KDE project
//
// Copyright (c) 2010-2011 Timothy Pearson <kb9vqf@pearsoncomputing.net>

#include <config.h>

#include "sakdlg.h"

#include <dmctl.h>

#include <kapplication.h>
#include <klocale.h>
#include <kpushbutton.h>
#include <kseparator.h>
#include <kstandarddirs.h>
#include <kglobalsettings.h>
#include <tdeconfig.h>
#include <kiconloader.h>
#include <tdesu/defaults.h>
#include <kpassdlg.h>
#include <kdebug.h>
#include <kuser.h>
#include <dcopref.h>
#include <kmessagebox.h>
#include <kdialog.h>

#include <tqlayout.h>
#include <tqpushbutton.h>
#include <tqmessagebox.h>
#include <tqsimplerichtext.h>
#include <tqlabel.h>
#include <tqstringlist.h>
#include <tqfontmetrics.h>
#include <tqstyle.h>
#include <tqapplication.h>
#include <tqlistview.h>
#include <tqheader.h>
#include <tqcheckbox.h>
#include <tqtimer.h>

#include <fcntl.h>
#include <ctype.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <pwd.h>
#include <sys/types.h>
#include <sys/socket.h>

#include <X11/Xutil.h>
#include <X11/keysym.h>
#include <X11/Xatom.h>
#include <fixx11h.h>

#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <limits.h>
#include <dirent.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/select.h>
#include <sys/time.h>
#include <termios.h>
#include <signal.h>
#include <libgen.h>

#include "kfdialog.h"

#ifndef AF_LOCAL
# define AF_LOCAL	AF_UNIX
#endif

#define FIFO_DIR "/tmp/tdesocket-global/tdm"
#define FIFO_FILE "/tmp/tdesocket-global/tdm/tdmctl-%1"
#define FIFO_SAK_FILE "/tmp/tdesocket-global/tdm/tdmctl-sak-%1"

bool trinity_desktop_lock_use_system_modal_dialogs = TRUE;
extern bool trinity_desktop_lock_use_sak;

//===========================================================================
//
// Simple dialog for displaying an unlock status or recurring error message
//
SAKDlg::SAKDlg(TQWidget *parent)
    : TQDialog(parent, "information dialog", true, (trinity_desktop_lock_use_system_modal_dialogs?((WFlags)WStyle_StaysOnTop):((WFlags)WX11BypassWM))),
      mUnlockingFailed(false), mPipe_fd(-1), closingDown(false)
{
    if (trinity_desktop_lock_use_system_modal_dialogs) {
        // Signal that we do not want any window controls to be shown at all
        Atom kde_wm_system_modal_notification;
        kde_wm_system_modal_notification = XInternAtom(tqt_xdisplay(), "_KDE_WM_MODAL_SYS_NOTIFICATION", False);
        XChangeProperty(tqt_xdisplay(), winId(), kde_wm_system_modal_notification, XA_INTEGER, 32, PropModeReplace, (unsigned char *) "TRUE", 1L);
    }
    setCaption(TDM_LOGIN_SCREEN_BASE_TITLE);

    frame = new TQFrame( this );
    if (trinity_desktop_lock_use_system_modal_dialogs)
        frame->setFrameStyle( TQFrame::NoFrame );
    else
        frame->setFrameStyle( TQFrame::Panel | TQFrame::Raised );
    frame->setLineWidth( 2 );

    KSMModalDialogHeader* theader = new KSMModalDialogHeader( frame );

    KUser user;

    mStatusLabel = new TQLabel( "<b> </b>", frame );
    mStatusLabel->setAlignment( TQLabel::AlignVCenter );

    TQVBoxLayout *unlockDialogLayout = new TQVBoxLayout( this );
    unlockDialogLayout->addWidget( frame );

    TQHBoxLayout *layStatus = new TQHBoxLayout( 0, 0, KDialog::spacingHint());
    layStatus->addWidget( mStatusLabel );

    frameLayout = new TQGridLayout( frame, 1, 1, KDialog::marginHint(), KDialog::spacingHint() );
    frameLayout->addMultiCellWidget( theader, 0, 0, 0, 1, AlignTop | AlignLeft );
    frameLayout->addMultiCellLayout( layStatus, 1, 1, 0, 1, AlignLeft | AlignVCenter);

    mStatusLabel->setText("<b>" + i18n("Press Ctrl+Alt+Del to begin.") + "</b><p>" + i18n("This process helps keep your password secure.") + "<br>" + i18n("It prevents unauthorized users from emulating the login screen."));

    installEventFilter(this);

    mSATDEProcess = new TDEProcess;
    *mSATDEProcess << "tdmtsak" << "dm";
    connect(mSATDEProcess, TQT_SIGNAL(processExited(TDEProcess*)), this, TQT_SLOT(slotSATDEProcessExited()));
    mSATDEProcess->start();

    TQTimer::singleShot( 0, this, TQT_SLOT(handleInputPipe()) );
}

void SAKDlg::slotSATDEProcessExited()
{
    int retcode = mSATDEProcess->exitStatus();
    if (retcode != 0) trinity_desktop_lock_use_sak = false;
    closingDown = true;
    hide();
}

void SAKDlg::handleInputPipe(void) {
	if (closingDown) {
		::unlink(mPipeFilename.ascii());
		return;
	}

	if (isShown() == false) {
		TQTimer::singleShot( 100, this, TQT_SLOT(handleInputPipe()) );
		return;
	}

	char readbuf[2048];
	int displayNumber;
	TQString currentDisplay;
	currentDisplay = TQString(getenv("DISPLAY"));
	currentDisplay = currentDisplay.replace(":", "");
	displayNumber = currentDisplay.toInt();
	mPipeFilename = TQString(FIFO_SAK_FILE).arg(displayNumber);
	::unlink((TQString(FIFO_FILE).arg(displayNumber)).ascii());

	/* Create the FIFOs if they do not exist */
	umask(0);
	struct stat buffer;
	int status;
	char *fifo_parent_dir = strdup(FIFO_DIR);
	dirname(fifo_parent_dir);
	status = stat(fifo_parent_dir, &buffer);
	if (status != 0) {
		mkdir(fifo_parent_dir, 0644);
	}
	free(fifo_parent_dir);
	status = stat(FIFO_DIR, &buffer);
	if (status == 0) {
		int file_mode = ((buffer.st_mode & S_IRWXU) >> 6) * 100;
		file_mode = file_mode + ((buffer.st_mode & S_IRWXG) >> 3) * 10;
		file_mode = file_mode + ((buffer.st_mode & S_IRWXO) >> 0) * 1;
		if ((file_mode != 600) || (buffer.st_uid != 0) || (buffer.st_gid != 0)) {
			::unlink(mPipeFilename.ascii());
			printf("[WARNING] Possible security breach!  Please check permissions on " FIFO_DIR " (must be 600 and owned by root/root, got %d %d/%d).  Not listening for login credentials on remote control socket.\n", file_mode, buffer.st_uid, buffer.st_gid); fflush(stdout);
			return;
		}
	}
	mkdir(FIFO_DIR,0600);
	mknod(mPipeFilename.ascii(), S_IFIFO|0600, 0);
	chmod(mPipeFilename.ascii(), 0600);

	mPipe_fd = ::open(mPipeFilename.ascii(), O_RDONLY | O_NONBLOCK);
	int numread;
	TQString inputcommand = "";
	while ((!inputcommand.contains('\n')) && (!closingDown)) {
		numread = ::read(mPipe_fd, readbuf, 2048);
		readbuf[numread] = 0;
		readbuf[2047] = 0;
		inputcommand += readbuf;
		if (!tqApp->hasPendingEvents()) {
			usleep(500);
		}
		tqApp->processEvents();
	}
	if (closingDown) {
		::unlink(mPipeFilename.ascii());
		return;
	}
	inputcommand = inputcommand.replace('\n', "");
	TQStringList commandList = TQStringList::split('\t', inputcommand, false);
	if ((*(commandList.at(0))) == "CLOSE") {
		mSATDEProcess->kill();
	}
	if (!closingDown) {
		TQTimer::singleShot( 0, this, TQT_SLOT(handleInputPipe()) );
		::close(mPipe_fd);
		::unlink(mPipeFilename.ascii());
	}
	else {
		::unlink(mPipeFilename.ascii());
	}
}

SAKDlg::~SAKDlg()
{
    if ((mSATDEProcess) && (mSATDEProcess->isRunning())) {
        mSATDEProcess->kill(SIGTERM);
        delete mSATDEProcess;
    }
    if (mPipe_fd != -1) {
        closingDown = true;
        ::close(mPipe_fd);
        ::unlink(mPipeFilename.ascii());
    }
    hide();
}

void SAKDlg::closeDialogForced()
{
    TQDialog::reject();
}

void SAKDlg::reject()
{

}

void SAKDlg::updateLabel(TQString &txt)
{
    mStatusLabel->setPaletteForegroundColor(Qt::black);
    mStatusLabel->setText("<b>" + txt + "</b>");
}

void SAKDlg::show()
{
    TQDialog::show();
    TQApplication::flushX();
}

#include "sakdlg.moc"