From 79439e76cc5b302222874a1f9e93665cb12801ac Mon Sep 17 00:00:00 2001
From: Andre Heinecke <aheinecke@intevation.de>
Date: Mon, 5 Sep 2016 12:53:02 +0200
Subject: [PATCH] cpp: Add convenience update function to a key

* lang/cpp/src/key.cpp (Key::update): New.
* lang/cpp/src/key.h: Update accordingly.

--
This function helps if you have an incomplete key or want
to make sure all info in a key is complete (e.g. validity / tofuinfo)
---
 lang/cpp/src/key.cpp | 22 ++++++++++++++++++++++
 lang/cpp/src/key.h   |  6 ++++++
 2 files changed, 28 insertions(+)

diff --git a/lang/cpp/src/key.cpp b/lang/cpp/src/key.cpp
index 204eeca2..cfa1ba31 100644
--- a/lang/cpp/src/key.cpp
+++ b/lang/cpp/src/key.cpp
@@ -24,6 +24,7 @@
 
 #include "util.h"
 #include "tofuinfo.h"
+#include "context.h"
 
 #include <gpgme.h>
 
@@ -322,6 +323,27 @@ const Key &Key::mergeWith(const Key &other)
     return *this;
 }
 
+void Key::update()
+{
+    auto ctx = Context::createForProtocol(protocol());
+    if (!ctx) {
+        return;
+    }
+    ctx->setKeyListMode(KeyListMode::Local |
+                        KeyListMode::Signatures |
+                        KeyListMode::SignatureNotations |
+                        KeyListMode::Validate |
+                        KeyListMode::WithTofu);
+    Error err;
+    auto newKey = ctx->key(primaryFingerprint(), err, hasSecret());
+    delete ctx;
+    if (err) {
+        return;
+    }
+    swap(newKey);
+    return;
+}
+
 //
 //
 // class Subkey
diff --git a/lang/cpp/src/key.h b/lang/cpp/src/key.h
index 85b16dfc..f193093c 100644
--- a/lang/cpp/src/key.h
+++ b/lang/cpp/src/key.h
@@ -146,6 +146,12 @@ public:
 
     unsigned int keyListMode() const;
 
+    /*! Update information about this key.
+     * Starts a keylisting for this key with validity
+     * and tofu information gathering. Blocks for
+     * how long the keylisting takes.*/
+    void update();
+
 private:
     gpgme_key_t impl() const
     {