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/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
*
* This 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 software 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 software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#include <vncconfig/Legacy.h>
#include <rfb/LogWriter.h>
#include <rfb/Password.h>
#include <rfb_win32/CurrentUser.h>
using namespace rfb;
using namespace win32;
static LogWriter vlog("Legacy");
void LegacyPage::LoadPrefs()
{
// VNC 3.3.3R3 Preferences Algorithm, as described by vncProperties.cpp
// - Load user-specific settings, based on logged-on user name,
// from HKLM/Software/ORL/WinVNC3/<user>. If they don't exist,
// try again with username "Default".
// - Load system-wide settings from HKLM/Software/ORL/WinVNC3.
// - If AllowProperties is non-zero then load the user's own
// settings from HKCU/Software/ORL/WinVNC3.
// Get the name of the current user
TCharArray username;
try {
UserName name;
username.buf = name.takeBuf();
} catch (rdr::SystemException& e) {
if (e.err != ERROR_NOT_LOGGED_ON)
throw;
}
// Open and read the WinVNC3 registry key
allowProperties = true;
RegKey winvnc3;
try {
winvnc3.openKey(HKEY_LOCAL_MACHINE, _T("Software\\ORL\\WinVNC3"));
int debugMode = winvnc3.getInt(_T("DebugMode"), 0);
const char* debugTarget = 0;
if (debugMode & 2) debugTarget = "file";
if (debugMode & 4) debugTarget = "stderr";
if (debugTarget) {
char logSetting[32];
sprintf(logSetting, "*:%s:%d", debugTarget, winvnc3.getInt(_T("DebugLevel"), 0));
regKey.setString(_T("Log"), TStr(logSetting));
}
TCharArray authHosts;
authHosts.buf = winvnc3.getString(_T("AuthHosts"), 0);
if (authHosts.buf) {
CharArray newHosts;
newHosts.buf = strDup("");
// Reformat AuthHosts to Hosts. Wish I'd left the format the same. :( :( :(
try {
CharArray tmp(authHosts.buf);
while (tmp.buf) {
// Split the AuthHosts string into patterns to match
CharArray first;
rfb::strSplit(tmp.buf, ':', &first.buf, &tmp.buf);
if (strlen(first.buf)) {
int bits = 0;
CharArray pattern(1+4*4+4);
pattern.buf[0] = first.buf[0];
pattern.buf[1] = 0;
// Split the pattern into IP address parts and process
rfb::CharArray address;
address.buf = rfb::strDup(&first.buf[1]);
while (address.buf) {
rfb::CharArray part;
rfb::strSplit(address.buf, '.', &part.buf, &address.buf);
if (bits)
strcat(pattern.buf, ".");
if (strlen(part.buf) > 3)
throw rdr::Exception("Invalid IP address part");
if (strlen(part.buf) > 0) {
strcat(pattern.buf, part.buf);
bits += 8;
}
}
// Pad out the address specification if required
int addrBits = bits;
while (addrBits < 32) {
if (addrBits) strcat(pattern.buf, ".");
strcat(pattern.buf, "0");
addrBits += 8;
}
// Append the number of bits to match
char buf[4];
sprintf(buf, "/%d", bits);
strcat(pattern.buf, buf);
// Append this pattern to the Hosts value
int length = strlen(newHosts.buf) + strlen(pattern.buf) + 2;
CharArray tmpHosts(length);
strcpy(tmpHosts.buf, pattern.buf);
if (strlen(newHosts.buf)) {
strcat(tmpHosts.buf, ",");
strcat(tmpHosts.buf, newHosts.buf);
}
delete [] newHosts.buf;
newHosts.buf = tmpHosts.takeBuf();
}
}
// Finally, save the Hosts value
regKey.setString(_T("Hosts"), TStr(newHosts.buf));
} catch (rdr::Exception) {
MsgBox(0, _T("Unable to convert AuthHosts setting to Hosts format."),
MB_ICONWARNING | MB_OK);
}
} else {
regKey.setString(_T("Hosts"), _T("+"));
}
regKey.setBool(_T("LocalHost"), winvnc3.getBool(_T("LoopbackOnly"), false));
// *** check AllowLoopback?
if (winvnc3.getBool(_T("AuthRequired"), true))
regKey.setString(_T("SecurityTypes"), _T("VncAuth"));
else
regKey.setString(_T("SecurityTypes"), _T("None"));
int connectPriority = winvnc3.getInt(_T("ConnectPriority"), 0);
regKey.setBool(_T("DisconnectClients"), connectPriority == 0);
regKey.setBool(_T("AlwaysShared"), connectPriority == 1);
regKey.setBool(_T("NeverShared"), connectPriority == 2);
} catch(rdr::Exception) {
}
// Open the local, default-user settings
allowProperties = true;
try {
RegKey userKey;
userKey.openKey(winvnc3, _T("Default"));
vlog.info("loading Default prefs");
LoadUserPrefs(userKey);
} catch(rdr::Exception& e) {
vlog.error("error reading Default settings:%s", e.str());
}
// Open the local, user-specific settings
if (userSettings && username.buf) {
try {
RegKey userKey;
userKey.openKey(winvnc3, username.buf);
vlog.info("loading local User prefs");
LoadUserPrefs(userKey);
} catch(rdr::Exception& e) {
vlog.error("error reading local User settings:%s", e.str());
}
// Open the user's own settings
if (allowProperties) {
try {
RegKey userKey;
userKey.openKey(HKEY_CURRENT_USER, _T("Software\\ORL\\WinVNC3"));
vlog.info("loading global User prefs");
LoadUserPrefs(userKey);
} catch(rdr::Exception& e) {
vlog.error("error reading global User settings:%s", e.str());
}
}
}
// Disable the Options menu item if appropriate
regKey.setBool(_T("DisableOptions"), !allowProperties);
}
void LegacyPage::LoadUserPrefs(const RegKey& key)
{
if (key.getBool(_T("HTTPConnect"), true))
regKey.setInt(_T("HTTPPortNumber"), key.getInt(_T("PortNumber"), 5900)-100);
else
regKey.setInt(_T("HTTPPortNumber"), 0);
regKey.setInt(_T("PortNumber"), key.getBool(_T("SocketConnect")) ? key.getInt(_T("PortNumber"), 5900) : 0);
if (key.getBool(_T("AutoPortSelect"), false)) {
MsgBox(0, _T("The AutoPortSelect setting is not supported by this release.")
_T("The port number will default to 5900."),
MB_ICONWARNING | MB_OK);
regKey.setInt(_T("PortNumber"), 5900);
}
regKey.setInt(_T("IdleTimeout"), key.getInt(_T("IdleTimeout"), 0));
regKey.setBool(_T("RemoveWallpaper"), key.getBool(_T("RemoveWallpaper")));
regKey.setBool(_T("RemovePattern"), key.getBool(_T("RemoveWallpaper")));
regKey.setBool(_T("DisableEffects"), key.getBool(_T("RemoveWallpaper")));
if (key.getInt(_T("QuerySetting"), 2) != 2) {
regKey.setBool(_T("QueryConnect"), key.getInt(_T("QuerySetting")) > 2);
MsgBox(0, _T("The QuerySetting option has been replaced by QueryConnect.")
_T("Please see the documentation for details of the QueryConnect option."),
MB_ICONWARNING | MB_OK);
}
regKey.setInt(_T("QueryTimeout"), key.getInt(_T("QueryTimeout"), 10));
ObfuscatedPasswd passwd;
key.getBinary(_T("Password"), (void**)&passwd.buf, &passwd.length, 0, 0);
regKey.setBinary(_T("Password"), passwd.buf, passwd.length);
bool enableInputs = key.getBool(_T("InputsEnabled"), true);
regKey.setBool(_T("AcceptKeyEvents"), enableInputs);
regKey.setBool(_T("AcceptPointerEvents"), enableInputs);
regKey.setBool(_T("AcceptCutText"), enableInputs);
regKey.setBool(_T("SendCutText"), enableInputs);
switch (key.getInt(_T("LockSetting"), 0)) {
case 0: regKey.setString(_T("DisconnectAction"), _T("None")); break;
case 1: regKey.setString(_T("DisconnectAction"), _T("Lock")); break;
case 2: regKey.setString(_T("DisconnectAction"), _T("Logoff")); break;
};
regKey.setBool(_T("DisableLocalInputs"), key.getBool(_T("LocalInputsDisabled"), false));
// *** ignore polling preferences
// PollUnderCursor, PollForeground, OnlyPollConsole, OnlyPollOnEvent
regKey.setBool(_T("UseHooks"), !key.getBool(_T("PollFullScreen"), false));
if (key.isValue(_T("AllowShutdown")))
MsgBox(0, _T("The AllowShutdown option is not supported by this release."), MB_ICONWARNING | MB_OK);
if (key.isValue(_T("AllowEditClients")))
MsgBox(0, _T("The AllowEditClients option is not supported by this release."), MB_ICONWARNING | MB_OK);
allowProperties = key.getBool(_T("AllowProperties"), allowProperties);
}
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