Rewrite import key with rnp

plugins/Pass/jobs/rnpjob.cpp

@@ -0,0 +1,42 @@
+#include <QDebug>
+
+#include "rnpjob.h"
+extern "C" {
+#include <rnp/rnp.h>
+#include <rnp/rnp_err.h>
+}
+
+RnpJob::RnpJob(QDir rnp_homedir):
+    m_rnp_homedir(rnp_homedir)
+{
+    auto ret = rnp_ffi_create(&this->m_ffi,
+                   RNP_KEYSTORE_GPG,
+                   RNP_KEYSTORE_GPG);
+    if(ret != RNP_SUCCESS) {
+        qDebug() << "Err : " << ret;
+        qFatal("Error on rnp ffi init!");
+    }
+}
+
+RnpJob::~RnpJob(){
+    auto ret = rnp_ffi_destroy(this->m_ffi);
+    if(ret != RNP_SUCCESS) {
+        qDebug() << "Err : " << ret;
+        qFatal("Something go wrong on rnp ffi detroy");
+    }
+}
+
+bool RnpJob::passProvider(rnp_ffi_t        ffi,
+                      void *           app_ctx,
+                      rnp_key_handle_t key,
+                      const char *     pgp_context,
+                      char             buf[],
+                      size_t           buf_len)
+{
+    if (strcmp(pgp_context, "protect")) {
+        return false;
+    }
+
+    strncpy(buf, "password", buf_len);
+    return true;
+}