4 files changed, 103 insertions, 5 deletions

diff --git a/context.cpp b/context.cpp
index ebdb042..e6c0aae 100644
--- a/context.cpp
+++ b/context.cpp
@@ -602,8 +602,83 @@ void Context::decryptVerify(QByteArray in) {
 
 void Context::sign(const QByteArray &inBuffer, QByteArray *outBuffer) {
 
+    gpgme_error_t err;
+    gpgme_data_t in, out;
+    gpgme_sign_result_t result;
+
+    err = gpgme_data_new_from_mem (&in, "Hallo Leute\n", 12, 0);
+    checkErr(err);
+
+    err = gpgme_data_new (&out);
+    checkErr(err);
+/*
+    `GPGME_SIG_MODE_NORMAL'
+          A normal signature is made, the output includes the plaintext
+          and the signature.
+
+    `GPGME_SIG_MODE_DETACH'
+          A detached signature is made.
+
+    `GPGME_SIG_MODE_CLEAR'
+          A clear text signature is made.  The ASCII armor and text
+          mode settings of the context are ignored.
+
+*/
+    //err = gpgme_op_sign (mCtx, in, out, GPGME_SIG_MODE_NORMAL);
+    err = gpgme_op_sign (mCtx, in, out, GPGME_SIG_MODE_CLEAR);
+    checkErr(err);
+    result = gpgme_op_sign_result (mCtx);
+
+    err = readToBuffer(out, outBuffer);
+
+    qDebug() << "sig: " << QString::fromUtf8(*outBuffer);
+
 }
 
+bool Context::sign(QStringList *uidList, const QByteArray &inBuffer, QByteArray *outBuffer ) {
+
+    gpgme_error_t err;
+    gpgme_data_t in, out;
+    gpgme_sign_result_t result;
+
+    if (uidList->count() == 0) {
+        QMessageBox::critical(0, tr("No Key Selected"), tr("No Key Selected"));
+        return false;
+    }
+
+    // at start or end?
+    gpgme_signers_clear(mCtx);
+
+    //gpgme_encrypt_result_t e_result;
+    gpgme_key_t signers[uidList->count()+1];
+
+
+    // TODO: do we really need array? adding one key in loop should be ok
+    for (int i = 0; i < uidList->count(); i++) {
+        // the last 0 is for public keys, 1 would return private keys
+        gpgme_op_keylist_start(mCtx, uidList->at(i).toAscii().constData(), 0);
+        gpgme_op_keylist_next(mCtx, &signers[i]);
+        gpgme_op_keylist_end(mCtx);
+
+        err = gpgme_signers_add (mCtx, signers[i]);
+        checkErr(err);
+    }
+
+     err = gpgme_data_new_from_mem(&in, inBuffer.data(), inBuffer.size(), 1);
+     checkErr(err);
+     err = gpgme_data_new (&out);
+     checkErr(err);
+
+     err = gpgme_op_sign (mCtx, in, out, GPGME_SIG_MODE_CLEAR);
+     checkErr (err);
+     result = gpgme_op_sign_result (mCtx);
+     err = readToBuffer(out, outBuffer);
+
+     gpgme_data_release(in);
+     gpgme_data_release(out);
+
+     return (err == GPG_ERR_NO_ERROR);
+}
 }
 
 
diff --git a/context.h b/context.h
index 5d553ff..bd73a79 100644
--- a/context.h
+++ b/context.h
@@ -73,6 +73,7 @@ public:
     void verify(QByteArray in);
     void decryptVerify(QByteArray in);
     void sign(const QByteArray &inBuffer, QByteArray *outBuffer);
+    bool sign(QStringList *uidList, const QByteArray &inBuffer, QByteArray *outBuffer );
 
 signals:
     void keyDBChanged();
diff --git a/gpgwin.cpp b/gpgwin.cpp
index 36c75d5..3aa1b62 100644
--- a/gpgwin.cpp
+++ b/gpgwin.cpp
@@ -218,6 +218,12 @@ void GpgWin::createActions()
     fileEncryptionAct->setToolTip(tr("Encrypt/Decrypt File"));
     connect(fileEncryptionAct, SIGNAL(triggered()), this, SLOT(fileEncryption()));
 
+    signAct = new QAction(tr("&Sign"), this);
+    //signAct->setIcon(QIcon(iconPath + "encrypted.png"));
+    //signAct->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_E));
+    signAct->setToolTip(tr("Sign Message"));
+    connect(signAct, SIGNAL(triggered()), this, SLOT(sign()));
+
     /** Key Menu
      */
     importKeyFromFileAct = new QAction(tr("&File"), this);
@@ -288,6 +294,7 @@ void GpgWin::createMenus()
     cryptMenu = menuBar()->addMenu(tr("&Crypt"));
     cryptMenu->addAction(encryptAct);
     cryptMenu->addAction(decryptAct);
+    cryptMenu->addAction(signAct);
     cryptMenu->addSeparator();
     cryptMenu->addAction(fileEncryptionAct);
 
@@ -540,7 +547,7 @@ void GpgWin::encrypt()
 void GpgWin::decrypt()
 {
     QByteArray *decrypted = new QByteArray();
-    QByteArray text = edit->toPlainText().toAscii();
+    QByteArray text = edit->toPlainText().toAscii(); // TODO: toUtf8() here?
     preventNoDataErr(&text);
     mCtx->decrypt(text, decrypted);
     if (!decrypted->isEmpty()) {
@@ -689,8 +696,6 @@ void GpgWin::importKeyFromFile()
 void GpgWin::openKeyManagement()
 {
 
-    mCtx->verify(QByteArray());
-
     if (!keyMgmt) {
         keyMgmt = new KeyMgmt(mCtx, iconPath);
 //        keyMgmt->resize(800, 400);
@@ -700,6 +705,21 @@ void GpgWin::openKeyManagement()
     keyMgmt->activateWindow();
 }
 
+void GpgWin::sign() {
+    // test-stuff that does not belong here ;-)
+    //mCtx->verify(QByteArray());
+    //mCtx->sign(QByteArray(), new QByteArray());
+    // end of test
+
+    QStringList *uidList = mKeyList->getChecked();
+
+    QByteArray *tmp = new QByteArray();
+    if (mCtx->sign(uidList, edit->toPlainText().toUtf8(), tmp)) {
+        QString *tmp2 = new QString(*tmp);
+        edit->setPlainText(*tmp2);
+    }
+}
+
 void GpgWin::importKeyDialog()
 {
 
diff --git a/gpgwin.h b/gpgwin.h
index b994845..47e0700 100644
--- a/gpgwin.h
+++ b/gpgwin.h
@@ -81,6 +81,7 @@ public slots:
     void openSettingsDialog();
     void openTutorial();
     void checkAttachmentFolder();
+    void sign();
 //    void dropEvent(QDropEvent *event);
 
 private:
@@ -121,6 +122,7 @@ private:
     QAction *quitAct;
     QAction *encryptAct;
     QAction *decryptAct;
+    QAction *signAct;
     QAction *importKeyDialogAct;
     QAction *importKeyFromFileAct;
     QAction *importKeyFromEditAct;
@@ -131,8 +133,8 @@ private:
     QAction *cutAct;
     QAction *pasteAct;
     QAction *selectallAct;
-	QAction *undoAct;
-	QAction *redoAct;
+    QAction *undoAct;
+    QAction *redoAct;
     QAction *aboutAct;
     QAction *fileEncryptionAct;
     QAction *openSettingsAct;