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tdelibs/tdeio/kpasswdserver/kpasswdserver.cpp

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/*
This file is part of the KDE Password Server
Copyright (C) 2002 Waldo Bastian (bastian@kde.org)
Copyright (C) 2005 David Faure (faure@kde.org)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
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 library; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
//----------------------------------------------------------------------------
//
// KDE Password Server
// $Id$
#include "kpasswdserver.h"
#include <time.h>
#include <tqtimer.h>
#include <kapplication.h>
#include <klocale.h>
#include <kmessagebox.h>
#include <kdebug.h>
#include <tdeio/passdlg.h>
#include <tdewallet.h>
#include "config.h"
#ifdef Q_WS_X11
#include <X11/X.h>
#include <X11/Xlib.h>
#endif
extern "C" {
KDE_EXPORT KDEDModule *create_kpasswdserver(const TQCString &name)
{
return new KPasswdServer(name);
}
}
int
KPasswdServer::AuthInfoList::compareItems(TQPtrCollection::Item n1, TQPtrCollection::Item n2)
{
if (!n1 || !n2)
return 0;
AuthInfo *i1 = (AuthInfo *) n1;
AuthInfo *i2 = (AuthInfo *) n2;
int l1 = i1->directory.length();
int l2 = i2->directory.length();
if (l1 > l2)
return -1;
if (l1 < l2)
return 1;
return 0;
}
KPasswdServer::KPasswdServer(const TQCString &name)
: KDEDModule(name)
{
m_authDict.setAutoDelete(true);
m_authPending.setAutoDelete(true);
m_seqNr = 0;
m_wallet = 0;
connect(this, TQT_SIGNAL(windowUnregistered(long)),
this, TQT_SLOT(removeAuthForWindowId(long)));
}
KPasswdServer::~KPasswdServer()
{
delete m_wallet;
}
// Helper - returns the wallet key to use for read/store/checking for existence.
static TQString makeWalletKey( const TQString& key, const TQString& realm )
{
return realm.isEmpty() ? key : key + '-' + realm;
}
// Helper for storeInWallet/readFromWallet
static TQString makeMapKey( const char* key, int entryNumber )
{
TQString str = TQString::fromLatin1( key );
if ( entryNumber > 1 )
str += "-" + TQString::number( entryNumber );
return str;
}
static bool storeInWallet( KWallet::Wallet* wallet, const TQString& key, const TDEIO::AuthInfo &info )
{
if ( !wallet->hasFolder( KWallet::Wallet::PasswordFolder() ) )
if ( !wallet->createFolder( KWallet::Wallet::PasswordFolder() ) )
return false;
wallet->setFolder( KWallet::Wallet::PasswordFolder() );
// Before saving, check if there's already an entry with this login.
// If so, replace it (with the new password). Otherwise, add a new entry.
typedef TQMap<TQString,TQString> Map;
int entryNumber = 1;
Map map;
TQString walletKey = makeWalletKey( key, info.realmValue );
kdDebug(130) << "storeInWallet: walletKey=" << walletKey << " reading existing map" << endl;
if ( wallet->readMap( walletKey, map ) == 0 ) {
Map::ConstIterator end = map.end();
Map::ConstIterator it = map.find( "login" );
while ( it != end ) {
if ( it.data() == info.username ) {
break; // OK, overwrite this entry
}
it = map.find( TQString( "login-" ) + TQString::number( ++entryNumber ) );
}
// If no entry was found, create a new entry - entryNumber is set already.
}
const TQString loginKey = makeMapKey( "login", entryNumber );
const TQString passwordKey = makeMapKey( "password", entryNumber );
kdDebug(130) << "storeInWallet: writing to " << loginKey << "," << passwordKey << endl;
// note the overwrite=true by default
map.insert( loginKey, info.username );
map.insert( passwordKey, info.password );
wallet->writeMap( walletKey, map );
return true;
}
static bool readFromWallet( KWallet::Wallet* wallet, const TQString& key, const TQString& realm, TQString& username, TQString& password, bool userReadOnly, TQMap<TQString,TQString>& knownLogins )
{
//kdDebug(130) << "readFromWallet: key=" << key << " username=" << username << " password=" /*<< password*/ << " userReadOnly=" << userReadOnly << " realm=" << realm << endl;
if ( wallet->hasFolder( KWallet::Wallet::PasswordFolder() ) )
{
wallet->setFolder( KWallet::Wallet::PasswordFolder() );
TQMap<TQString,TQString> map;
if ( wallet->readMap( makeWalletKey( key, realm ), map ) == 0 )
{
typedef TQMap<TQString,TQString> Map;
int entryNumber = 1;
Map::ConstIterator end = map.end();
Map::ConstIterator it = map.find( "login" );
while ( it != end ) {
//kdDebug(130) << "readFromWallet: found " << it.key() << "=" << it.data() << endl;
Map::ConstIterator pwdIter = map.find( makeMapKey( "password", entryNumber ) );
if ( pwdIter != end ) {
if ( it.data() == username )
password = pwdIter.data();
knownLogins.insert( it.data(), pwdIter.data() );
}
it = map.find( TQString( "login-" ) + TQString::number( ++entryNumber ) );
}
//kdDebug(130) << knownLogins.count() << " known logins" << endl;
if ( !userReadOnly && !knownLogins.isEmpty() && username.isEmpty() ) {
// Pick one, any one...
username = knownLogins.begin().key();
password = knownLogins.begin().data();
//kdDebug(130) << "readFromWallet: picked the first one : " << username << endl;
}
return true;
}
}
return false;
}
TDEIO::AuthInfo
KPasswdServer::checkAuthInfo(TDEIO::AuthInfo info, long windowId)
{
return checkAuthInfo(info, windowId, 0);
}
TDEIO::AuthInfo
KPasswdServer::checkAuthInfo(TDEIO::AuthInfo info, long windowId, unsigned long usertime)
{
kdDebug(130) << "KPasswdServer::checkAuthInfo: User= " << info.username
<< ", WindowId = " << windowId << endl;
if( usertime != 0 )
kapp->updateUserTimestamp( usertime );
TQString key = createCacheKey(info);
Request *request = m_authPending.first();
TQString path2 = info.url.directory(false, false);
for(; request; request = m_authPending.next())
{
if (request->key != key)
continue;
if (info.verifyPath)
{
TQString path1 = request->info.url.directory(false, false);
if (!path2.startsWith(path1))
continue;
}
request = new Request;
request->client = callingDcopClient();
request->transaction = request->client->beginTransaction();
request->key = key;
request->info = info;
m_authWait.append(request);
return info;
}
const AuthInfo *result = findAuthInfoItem(key, info);
if (!result || result->isCanceled)
{
if (!result &&
(info.username.isEmpty() || info.password.isEmpty()) &&
!KWallet::Wallet::keyDoesNotExist(KWallet::Wallet::NetworkWallet(),
KWallet::Wallet::PasswordFolder(), makeWalletKey(key, info.realmValue)))
{
TQMap<TQString, TQString> knownLogins;
if (openWallet(windowId)) {
if (readFromWallet(m_wallet, key, info.realmValue, info.username, info.password,
info.readOnly, knownLogins))
{
info.setModified(true);
return info;
}
}
}
info.setModified(false);
return info;
}
updateAuthExpire(key, result, windowId, false);
return copyAuthInfo(result);
}
TDEIO::AuthInfo
KPasswdServer::queryAuthInfo(TDEIO::AuthInfo info, TQString errorMsg, long windowId, long seqNr)
{
return queryAuthInfo(info, errorMsg, windowId, seqNr, 0 );
}
TDEIO::AuthInfo
KPasswdServer::queryAuthInfo(TDEIO::AuthInfo info, TQString errorMsg, long windowId, long seqNr, unsigned long usertime)
{
kdDebug(130) << "KPasswdServer::queryAuthInfo: User= " << info.username
<< ", Message= " << info.prompt << ", WindowId = " << windowId << endl;
if ( !info.password.isEmpty() ) // should we really allow the caller to pre-fill the password?
kdDebug(130) << "password was set by caller" << endl;
if( usertime != 0 )
kapp->updateUserTimestamp( usertime );
TQString key = createCacheKey(info);
Request *request = new Request;
request->client = callingDcopClient();
request->transaction = request->client->beginTransaction();
request->key = key;
request->info = info;
request->windowId = windowId;
request->seqNr = seqNr;
if (errorMsg == "<NoAuthPrompt>")
{
request->errorMsg = TQString::null;
request->prompt = false;
}
else
{
request->errorMsg = errorMsg;
request->prompt = true;
}
m_authPending.append(request);
if (m_authPending.count() == 1)
TQTimer::singleShot(0, this, TQT_SLOT(processRequest()));
return info;
}
void
KPasswdServer::addAuthInfo(TDEIO::AuthInfo info, long windowId)
{
kdDebug(130) << "KPasswdServer::addAuthInfo: User= " << info.username
<< ", RealmValue= " << info.realmValue << ", WindowId = " << windowId << endl;
TQString key = createCacheKey(info);
m_seqNr++;
addAuthInfoItem(key, info, windowId, m_seqNr, false);
}
bool
KPasswdServer::openWallet( WId windowId )
{
if ( m_wallet && !m_wallet->isOpen() ) { // forced closed
delete m_wallet;
m_wallet = 0;
}
if ( !m_wallet )
m_wallet = KWallet::Wallet::openWallet(
KWallet::Wallet::NetworkWallet(), windowId );
return m_wallet != 0;
}
void
KPasswdServer::processRequest()
{
Request *request = m_authPending.first();
if (!request)
return;
TDEIO::AuthInfo &info = request->info;
kdDebug(130) << "KPasswdServer::processRequest: User= " << info.username
<< ", Message= " << info.prompt << endl;
const AuthInfo *result = findAuthInfoItem(request->key, request->info);
if (result && (request->seqNr < result->seqNr))
{
kdDebug(130) << "KPasswdServer::processRequest: auto retry!" << endl;
if (result->isCanceled)
{
info.setModified(false);
}
else
{
updateAuthExpire(request->key, result, request->windowId, false);
info = copyAuthInfo(result);
}
}
else
{
m_seqNr++;
bool askPw = request->prompt;
if (result && !info.username.isEmpty() &&
!request->errorMsg.isEmpty())
{
TQString prompt = request->errorMsg;
prompt += i18n(" Do you want to retry?");
int dlgResult = KMessageBox::warningContinueCancelWId(request->windowId, prompt,
i18n("Authentication"), i18n("Retry"));
if (dlgResult != KMessageBox::Continue)
askPw = false;
}
int dlgResult = TQDialog::Rejected;
if (askPw)
{
TQString username = info.username;
TQString password = info.password;
bool hasWalletData = false;
TQMap<TQString, TQString> knownLogins;
if ( ( username.isEmpty() || password.isEmpty() )
&& !KWallet::Wallet::keyDoesNotExist(KWallet::Wallet::NetworkWallet(), KWallet::Wallet::PasswordFolder(), makeWalletKey( request->key, info.realmValue )) )
{
// no login+pass provided, check if tdewallet has one
if ( openWallet( request->windowId ) )
hasWalletData = readFromWallet( m_wallet, request->key, info.realmValue, username, password, info.readOnly, knownLogins );
}
TDEIO::PasswordDialog dlg( info.prompt, username, info.keepPassword );
if (info.caption.isEmpty())
dlg.setPlainCaption( i18n("Authorization Dialog") );
else
dlg.setPlainCaption( info.caption );
if ( !info.comment.isEmpty() )
dlg.addCommentLine( info.commentLabel, info.comment );
if ( !password.isEmpty() )
dlg.setPassword( password );
if (info.readOnly)
dlg.setUserReadOnly( true );
else
dlg.setKnownLogins( knownLogins );
if (hasWalletData)
dlg.setKeepPassword( true );
#ifdef Q_WS_X11
XSetTransientForHint( tqt_xdisplay(), dlg.winId(), request->windowId);
#endif
dlgResult = dlg.exec();
if (dlgResult == TQDialog::Accepted)
{
info.username = dlg.username();
info.password = dlg.password();
info.keepPassword = dlg.keepPassword();
// When the user checks "keep password", that means:
// * if the wallet is enabled, store it there for long-term, and in kpasswdserver
// only for the duration of the window (#92928)
// * otherwise store in kpasswdserver for the duration of the KDE session.
if ( info.keepPassword ) {
if ( openWallet( request->windowId ) ) {
if ( storeInWallet( m_wallet, request->key, info ) )
// password is in wallet, don't keep it in memory after window is closed
info.keepPassword = false;
}
}
}
}
if ( dlgResult != TQDialog::Accepted )
{
addAuthInfoItem(request->key, info, 0, m_seqNr, true);
info.setModified( false );
}
else
{
addAuthInfoItem(request->key, info, request->windowId, m_seqNr, false);
info.setModified( true );
}
}
TQCString replyType;
TQByteArray replyData;
TQDataStream stream2(replyData, IO_WriteOnly);
stream2 << info << m_seqNr;
replyType = "TDEIO::AuthInfo";
request->client->endTransaction( request->transaction,
replyType, replyData);
m_authPending.remove((unsigned int) 0);
// Check all requests in the wait queue.
for(Request *waitRequest = m_authWait.first();
waitRequest; )
{
bool keepQueued = false;
TQString key = waitRequest->key;
request = m_authPending.first();
TQString path2 = waitRequest->info.url.directory(false, false);
for(; request; request = m_authPending.next())
{
if (request->key != key)
continue;
if (info.verifyPath)
{
TQString path1 = request->info.url.directory(false, false);
if (!path2.startsWith(path1))
continue;
}
keepQueued = true;
break;
}
if (keepQueued)
{
waitRequest = m_authWait.next();
}
else
{
const AuthInfo *result = findAuthInfoItem(waitRequest->key, waitRequest->info);
TQCString replyType;
TQByteArray replyData;
TQDataStream stream2(replyData, IO_WriteOnly);
if (!result || result->isCanceled)
{
waitRequest->info.setModified(false);
stream2 << waitRequest->info;
}
else
{
updateAuthExpire(waitRequest->key, result, waitRequest->windowId, false);
TDEIO::AuthInfo info = copyAuthInfo(result);
stream2 << info;
}
replyType = "TDEIO::AuthInfo";
waitRequest->client->endTransaction( waitRequest->transaction,
replyType, replyData);
m_authWait.remove();
waitRequest = m_authWait.current();
}
}
if (m_authPending.count())
TQTimer::singleShot(0, this, TQT_SLOT(processRequest()));
}
TQString KPasswdServer::createCacheKey( const TDEIO::AuthInfo &info )
{
if( !info.url.isValid() ) {
// Note that a null key will break findAuthInfoItem later on...
kdWarning(130) << "createCacheKey: invalid URL " << info.url << endl;
return TQString::null;
}
// Generate the basic key sequence.
TQString key = info.url.protocol();
key += '-';
if (!info.url.user().isEmpty())
{
key += info.url.user();
key += "@";
}
key += info.url.host();
int port = info.url.port();
if( port )
{
key += ':';
key += TQString::number(port);
}
return key;
}
TDEIO::AuthInfo
KPasswdServer::copyAuthInfo(const AuthInfo *i)
{
TDEIO::AuthInfo result;
result.url = i->url;
result.username = i->username;
result.password = i->password;
result.realmValue = i->realmValue;
result.digestInfo = i->digestInfo;
result.setModified(true);
return result;
}
const KPasswdServer::AuthInfo *
KPasswdServer::findAuthInfoItem(const TQString &key, const TDEIO::AuthInfo &info)
{
AuthInfoList *authList = m_authDict.find(key);
if (!authList)
return 0;
TQString path2 = info.url.directory(false, false);
for(AuthInfo *current = authList->first();
current; )
{
if ((current->expire == AuthInfo::expTime) &&
(difftime(time(0), current->expireTime) > 0))
{
authList->remove();
current = authList->current();
continue;
}
if (info.verifyPath)
{
TQString path1 = current->directory;
if (path2.startsWith(path1) &&
(info.username.isEmpty() || info.username == current->username))
return current;
}
else
{
if (current->realmValue == info.realmValue &&
(info.username.isEmpty() || info.username == current->username))
return current; // TODO: Update directory info,
}
current = authList->next();
}
return 0;
}
void
KPasswdServer::removeAuthInfoItem(const TQString &key, const TDEIO::AuthInfo &info)
{
AuthInfoList *authList = m_authDict.find(key);
if (!authList)
return;
for(AuthInfo *current = authList->first();
current; )
{
if (current->realmValue == info.realmValue)
{
authList->remove();
current = authList->current();
}
else
{
current = authList->next();
}
}
if (authList->isEmpty())
{
m_authDict.remove(key);
}
}
void
KPasswdServer::addAuthInfoItem(const TQString &key, const TDEIO::AuthInfo &info, long windowId, long seqNr, bool canceled)
{
AuthInfoList *authList = m_authDict.find(key);
if (!authList)
{
authList = new AuthInfoList;
m_authDict.insert(key, authList);
}
AuthInfo *current = authList->first();
for(; current; current = authList->next())
{
if (current->realmValue == info.realmValue)
{
authList->take();
break;
}
}
if (!current)
{
current = new AuthInfo;
current->expire = AuthInfo::expTime;
kdDebug(130) << "Creating AuthInfo" << endl;
}
else
{
kdDebug(130) << "Updating AuthInfo" << endl;
}
current->url = info.url;
current->directory = info.url.directory(false, false);
current->username = info.username;
current->password = info.password;
current->realmValue = info.realmValue;
current->digestInfo = info.digestInfo;
current->seqNr = seqNr;
current->isCanceled = canceled;
updateAuthExpire(key, current, windowId, info.keepPassword && !canceled);
// Insert into list, keep the list sorted "longest path" first.
authList->inSort(current);
}
void
KPasswdServer::updateAuthExpire(const TQString &key, const AuthInfo *auth, long windowId, bool keep)
{
AuthInfo *current = const_cast<AuthInfo *>(auth);
if (keep)
{
current->expire = AuthInfo::expNever;
}
else if (windowId && (current->expire != AuthInfo::expNever))
{
current->expire = AuthInfo::expWindowClose;
if (!current->windowList.contains(windowId))
current->windowList.append(windowId);
}
else if (current->expire == AuthInfo::expTime)
{
current->expireTime = time(0)+10;
}
// Update mWindowIdList
if (windowId)
{
TQStringList *keysChanged = mWindowIdList.find(windowId);
if (!keysChanged)
{
keysChanged = new TQStringList;
mWindowIdList.insert(windowId, keysChanged);
}
if (!keysChanged->contains(key))
keysChanged->append(key);
}
}
void
KPasswdServer::removeAuthForWindowId(long windowId)
{
TQStringList *keysChanged = mWindowIdList.find(windowId);
if (!keysChanged) return;
for(TQStringList::ConstIterator it = keysChanged->begin();
it != keysChanged->end(); ++it)
{
TQString key = *it;
AuthInfoList *authList = m_authDict.find(key);
if (!authList)
continue;
AuthInfo *current = authList->first();
for(; current; )
{
if (current->expire == AuthInfo::expWindowClose)
{
if (current->windowList.remove(windowId) && current->windowList.isEmpty())
{
authList->remove();
current = authList->current();
continue;
}
}
current = authList->next();
}
}
}
#include "kpasswdserver.moc"
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