From 3f845ea2994f53e29abeb3fa158c35f1ee56e7e8 Mon Sep 17 00:00:00 2001
From: Sjors Provoost <sjors@sprovoost.nl>
Date: Tue, 29 Oct 2019 20:53:49 +0100
Subject: node: add externalSigners to interface

---
 src/interfaces/node.h   |  6 ++++++
 src/node/interfaces.cpp | 10 ++++++++++
 2 files changed, 16 insertions(+)

diff --git a/src/interfaces/node.h b/src/interfaces/node.h
index 1dd1e92e2f..35b6160cea 100644
--- a/src/interfaces/node.h
+++ b/src/interfaces/node.h
@@ -6,6 +6,7 @@
 #define BITCOIN_INTERFACES_NODE_H
 
 #include <amount.h>     // For CAmount
+#include <external_signer.h>
 #include <net.h>        // For NodeId
 #include <net_types.h>  // For banmap_t
 #include <netaddress.h> // For Network
@@ -110,6 +111,11 @@ public:
     //! Disconnect node by id.
     virtual bool disconnectById(NodeId id) = 0;
 
+#ifdef ENABLE_EXTERNAL_SIGNER
+    //! List external signers
+    virtual std::vector<ExternalSigner> externalSigners() = 0;
+#endif
+
     //! Get total bytes recv.
     virtual int64_t getTotalBytesRecv() = 0;
 
diff --git a/src/node/interfaces.cpp b/src/node/interfaces.cpp
index 8befbf5e30..171f15d4fb 100644
--- a/src/node/interfaces.cpp
+++ b/src/node/interfaces.cpp
@@ -170,6 +170,16 @@ public:
         }
         return false;
     }
+#ifdef ENABLE_EXTERNAL_SIGNER
+    std::vector<ExternalSigner> externalSigners() override
+    {
+        std::vector<ExternalSigner> signers = {};
+        const std::string command = gArgs.GetArg("-signer", "");
+        if (command == "") return signers;
+        ExternalSigner::Enumerate(command, signers, Params().NetworkIDString());
+        return signers;
+    }
+#endif
     int64_t getTotalBytesRecv() override { return m_context->connman ? m_context->connman->GetTotalBytesRecv() : 0; }
     int64_t getTotalBytesSent() override { return m_context->connman ? m_context->connman->GetTotalBytesSent() : 0; }
     size_t getMempoolSize() override { return m_context->mempool ? m_context->mempool->size() : 0; }
-- 
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