From 11d720efd34559125bbc01111a7b428c5a4ae83e Mon Sep 17 00:00:00 2001
From: ubbo <ubbo@34ebc366-c3a9-4b3c-9f84-69acf7962910>
Date: Sat, 19 Sep 2009 23:02:45 +0000
Subject: add method for private-key export to context

git-svn-id: http://cpunk.de/svn/src/gpg4usb/trunk@222 34ebc366-c3a9-4b3c-9f84-69acf7962910
---
 context.cpp | 27 +++++++++++++++++++++++++++
 context.h   |  5 +++++
 2 files changed, 32 insertions(+)

diff --git a/context.cpp b/context.cpp
index 947aacb..1d32000 100644
--- a/context.cpp
+++ b/context.cpp
@@ -429,6 +429,33 @@ void Context::checkErr(gpgme_error_t err) const
     }
 }
 
+
+/** export private key, TODO errohandling, e.g. like in seahorse (seahorse-gpg-op.c) **/ 
+
+void Context::exportSecretKey(QString uid, QByteArray *outBuffer)
+{
+	QStringList arguments;
+	arguments << "--armor" << "--export-secret-key" << uid;
+	QByteArray *err = new QByteArray();
+	executeGpgCommand(arguments, outBuffer, err);
+}
+
+/** return type should be gpgme_error_t*/
+void Context::executeGpgCommand(QStringList arguments, QByteArray *stdOut, QByteArray *stdErr)
+{
+	gpgme_engine_info_t engine = gpgme_ctx_get_engine_info(mCtx);
+
+	QStringList args;
+	args << "--homedir" << engine->home_dir << "--batch" << arguments;	
+
+	QProcess gpg;
+    gpg.start(engine->file_name, args);
+    gpg.waitForFinished();
+
+    *stdOut = gpg.readAllStandardOutput();    
+    *stdErr = gpg.readAllStandardError();   
+}
+
 }
 
 
diff --git a/context.h b/context.h
index 5826692..c3397e4 100644
--- a/context.h
+++ b/context.h
@@ -68,6 +68,7 @@ public:
                  QByteArray *outBuffer);
     bool decrypt(const QByteArray &inBuffer, QByteArray *outBuffer);
     void clearCache();
+    void exportSecretKey(QString uid, QByteArray *outBuffer);
 
 signals:
     void keyDBChanged();
@@ -88,6 +89,10 @@ private:
     gpgme_error_t passphrase(const char *uid_hint,
                              const char *passphrase_info,
                              int last_was_bad, int fd);
+                             
+    void executeGpgCommand(QStringList arguments, 
+                                    QByteArray *stdOut, 
+                                    QByteArray *stdErr);                
 
 };
 } // namespace GpgME
-- 
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