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+/*
+ *      context.h
+ *
+ *      Copyright 2008 gpg4usb-team <[email protected]>
+ *
+ *      This program 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 program 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 program; if not, write to the Free Software
+ *      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ *      MA 02110-1301, USA.
+ */
+
+#ifndef __SGPGMEPP_CONTEXT_H__
+#define __SGPGMEPP_CONTEXT_H__
+
+#include <gpgme.h>
+#include <QByteArray>
+#include <QString>
+#include <QLinkedList>
+
+class GpgKey
+{
+  public:
+    QString id;
+    QString name;
+    QString email;
+    int privkey;
+    //bool privkey;
+};
+
+typedef QLinkedList< GpgKey > GpgKeyList;
+
+namespace GpgME {
+
+  class Context {
+
+  public:
+    Context(); // Consttructor
+    ~Context(); // Destructor
+
+    void importKeyFromFile(QString pathToFile);
+    void importKey(QByteArray inBuffer);
+    GpgKeyList listKeys();
+    void deleteKeys(QList<QString> *uidList);
+    bool encrypt(QList<QString> *uidList, const QByteArray& inBuffer, QByteArray* outBuffer);
+
+    bool decrypt(const QByteArray& inBuffer, QByteArray* outBuffer);
+    void clearCache();
+
+  private:
+    gpgme_ctx_t m_ctx;
+    gpgme_data_t in, out;
+    gpgme_error_t err;
+    gpgme_error_t readToBuffer(gpgme_data_t in, QByteArray* outBuffer);
+    QByteArray m_cache;
+    bool debug;
+    void checkErr(gpgme_error_t err) const;
+    void checkErr(gpgme_error_t err, QString comment) const;
+
+    static gpgme_error_t passphraseCb(void *hook, const char *uid_hint,
+                      const char *passphrase_info,
+                      int last_was_bad, int fd);
+    gpgme_error_t passphrase(const char *uid_hint,
+                 const char *passphrase_info,
+                 int last_was_bad, int fd);
+
+  };
+} // namespace GpgME
+
+#endif // __SGPGMEPP_CONTEXT_H__