kutils: allow storing and retreiving of temporary passwords via KPasswdStore

the implementation supports it and KIO now uses that feature

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>

kio/kio/slavebase.cpp

@@ -303,7 +303,7 @@ void SlaveBase::dispatchLoop()
         int ret = -1;
         if (d->appConnection.hasTaskAvailable() || d->appConnection.waitForIncomingTask(ms)) {
             // dispatch application messages
-            int cmd;
+            int cmd = 0;
             QByteArray data;
             ret = d->appConnection.read(&cmd, data);
 
@@ -578,6 +578,14 @@ void SlaveBase::reparseConfiguration()
 
 bool SlaveBase::openPasswordDialog(AuthInfo& info, const QString &errorMsg)
 {
+    KPasswdStore* passwdstore = d->passwdStore();
+    Q_ASSERT(passwdstore);
+
+    passwdstore->openStore();
+    if (checkCachedAuthentication(info)) {
+        return true;
+    }
+
     if (metaData(QLatin1String("no-auth-prompt")).compare(QLatin1String("true"), Qt::CaseInsensitive) == 0) {
         return false;
     }
@@ -587,9 +595,6 @@ bool SlaveBase::openPasswordDialog(AuthInfo& info, const QString &errorMsg)
 
     AuthInfo dlgInfo(info);
 
-    KPasswdStore* passwdstore = d->passwdStore();
-    Q_ASSERT(passwdstore);
-
     // assemble dialog-flags
     KPasswordDialog::KPasswordDialogFlags dialogFlags;
 
@@ -605,9 +610,8 @@ bool SlaveBase::openPasswordDialog(AuthInfo& info, const QString &errorMsg)
         dialogFlags |= KPasswordDialog::ShowUsernameLine;
     }
 
-    // If store is not enabled and the caller explicitly requested for it,
+    // If the caller explicitly requested for it do not show the keep password checkbox.
-    // do not show the keep password checkbox.
+    if (dlgInfo.keepPassword) {
-    if (dlgInfo.keepPassword && !passwdstore->cacheOnly()) {
         dialogFlags |= KPasswordDialog::ShowKeepPassword;
     }
 
@@ -636,9 +640,8 @@ bool SlaveBase::openPasswordDialog(AuthInfo& info, const QString &errorMsg)
         dlg->setUsernameReadOnly(true);
     }
 
-    if (!passwdstore->cacheOnly()) {
+    // even if the store is not open passwords can be temporary stored
     dlg->setKeepPassword(true);
-    }
 
     if (dlgInfo.getExtraField(AUTHINFO_EXTRAFIELD_DOMAIN).isValid()) {
         dlg->setDomain(dlgInfo.getExtraField(AUTHINFO_EXTRAFIELD_DOMAIN).toString());
@@ -948,16 +951,21 @@ bool SlaveBase::checkCachedAuthentication(AuthInfo &info)
 {
     KPasswdStore* passwdstore = d->passwdStore();
     Q_ASSERT(passwdstore);
+    if (!passwdstore->isOpen() && !passwdstore->cacheOnly()) {
+        // let it fail the first time, if authorization is really required openPasswordDialog()
+        // will open the store and call this method
+        return false;
+    }
     const qlonglong windowId = metaData(QLatin1String("window-id")).toLongLong();
     QByteArray authkey = authInfoKey(info);
-    if (passwdstore->hasPasswd(authkey, windowId)) {
+    QString passwd = passwdstore->getPasswd(authkey, windowId);
-        const QString passwd = passwdstore->getPasswd(authkey, windowId);
+    if (!passwd.isEmpty()) {
         info = authInfoFromData(passwd.toLatin1());
         return true;
     }
     authkey = authInfoKey2(info);
-    if (passwdstore->hasPasswd(authkey, windowId)) {
+    passwd = passwdstore->getPasswd(authkey, windowId);
-        const QString passwd = passwdstore->getPasswd(authkey, windowId);
+    if (!passwd.isEmpty()) {
         info = authInfoFromData(passwd.toLatin1());
         return true;
     }

kutils/kpasswdstore/kded/kded_kpasswdstore.cpp

@@ -32,6 +32,23 @@ KPasswdStoreModule::~KPasswdStoreModule()
     qDeleteAll(m_stores);
 }
 
+bool KPasswdStoreModule::isOpen(const QByteArray &cookie, const QString &storeid)
+{
+   KPasswdStoreMap::const_iterator it = m_stores.begin();
+    while (it != m_stores.end()) {
+        if (it.key() != cookie) {
+            it++;
+            continue;
+        }
+        KPasswdStoreImpl *store = it.value();
+        if (store->storeID() == storeid) {
+            return store->isOpen();
+        }
+        it++;
+    }
+    return false;
+}
+
 bool KPasswdStoreModule::openStore(const QByteArray &cookie, const QString &storeid, const qlonglong windowid)
 {
     KPasswdStoreMap::iterator it = m_stores.begin();

kutils/kpasswdstore/kded/kded_kpasswdstore.h

@@ -34,6 +34,7 @@ public:
     ~KPasswdStoreModule();
 
 public Q_SLOTS:
+    Q_SCRIPTABLE bool isOpen(const QByteArray &cookie, const QString &storeid);
     Q_SCRIPTABLE bool openStore(const QByteArray &cookie, const QString &storeid, const qlonglong windowid = 0);
     Q_SCRIPTABLE bool closeStore(const QByteArray &cookie, const QString &storeid, const qlonglong windowid = 0);
 

kutils/kpasswdstore/kded/kpasswdstoreimpl.cpp

@@ -91,6 +91,11 @@ QString KPasswdStoreImpl::storeID() const
     return m_storeid;
 }
 
+bool KPasswdStoreImpl::isOpen() const
+{
+    return (m_passwdtimer.elapsed() < m_timeout);
+}
+
 bool KPasswdStoreImpl::openStore(const qlonglong windowid)
 {
     if (m_cacheonly) {

kutils/kpasswdstore/kded/kpasswdstoreimpl.h

@@ -35,6 +35,7 @@ public:
 
     QString storeID() const;
 
+    bool isOpen() const;
     bool openStore(const qlonglong windowid);
     bool closeStore();
 

kutils/kpasswdstore/kpasswdstore.cpp

@@ -97,6 +97,16 @@ void KPasswdStore::setStoreID(const QString &id)
     d->storeid = id;
 }
 
+bool KPasswdStore::isOpen() const
+{
+    d->ensureInterface();
+    KLockFile klockfile(getLockName(d->cookie, d->storeid));
+    klockfile.lock();
+    QDBusReply<bool> result = d->interface->call("isOpen", d->cookie, d->storeid);
+    klockfile.unlock();
+    return result.value();
+}
+
 bool KPasswdStore::openStore(const qlonglong windowid)
 {
     d->ensureInterface();
@@ -120,14 +130,9 @@ bool KPasswdStore::cacheOnly() const
     return result.value();
 }
 
-bool KPasswdStore::hasPasswd(const QByteArray &key, const qlonglong windowid)
-{
-    return !getPasswd(key, windowid).isEmpty();
-}
-
 QString KPasswdStore::getPasswd(const QByteArray &key, const qlonglong windowid)
 {
-    if (!openStore(windowid)) {
+    if (!openStore(windowid) && !cacheOnly()) {
         return QString();
     }
     QDBusReply<QString> result = d->interface->call("getPasswd", d->cookie, d->storeid, key, windowid);
@@ -136,7 +141,7 @@ QString KPasswdStore::getPasswd(const QByteArray &key, const qlonglong windowid)
 
 bool KPasswdStore::storePasswd(const QByteArray &key, const QString &passwd, const qlonglong windowid)
 {
-    if (!openStore(windowid)) {
+    if (!openStore(windowid) && !cacheOnly()) {
         return false;
     }
     QDBusReply<bool> result = d->interface->call("storePasswd", d->cookie, d->storeid, key, passwd, windowid);

kutils/kpasswdstore/kpasswdstore.h

@@ -70,6 +70,11 @@ public:
     */
     void setStoreID(const QString &id);
 
+    /*!
+        @brief Returns true if the store is open, false otherwise
+    */
+    bool isOpen() const;
+
     /*!
         @brief Opens the store by asking for the password for it and returns
         @p true if the store is open, @p false otherwise
@@ -88,11 +93,6 @@ public:
     */
     bool cacheOnly() const;
 
-    /*!
-        @brief Returns @p true if there is password for the given @p key in the
-        password store, @p false otherwise
-    */
-    bool hasPasswd(const QByteArray &key, const qlonglong windowid = 0);
     /*!
         @brief Retrieves password for the given @p key from the password store
     */