From be06e8f53858de489e07f8432ad4bd92eda564f9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9o=20Haf?= <leo@haf.ovh>
Date: Tue, 25 Mar 2025 13:25:54 +0100
Subject: [PATCH] add sign message action

---
 Dockerfile             |  1 +
 actions/signmessage.sh | 28 ++++++++++++++++++++++++++++
 manifest.yaml          | 29 +++++++++++++++++++++++++++++
 3 files changed, 58 insertions(+)
 create mode 100644 actions/signmessage.sh

diff --git a/Dockerfile b/Dockerfile
index b637410..9dfe582 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -87,6 +87,7 @@ COPY ./manager/target/${ARCH}-unknown-linux-musl/release/bitcoind-manager \
      ./actions/reindex.sh \
      ./actions/sendcoin.sh \
      ./actions/sendall.sh \
+     ./actions/signmessage.sh \
      ./actions/reindex_chainstate.sh \
      ./actions/prioritise-transaction.sh \
      ./check-rpc.sh \
diff --git a/actions/signmessage.sh b/actions/signmessage.sh
new file mode 100644
index 0000000..5ffca19
--- /dev/null
+++ b/actions/signmessage.sh
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+set -e
+
+if ! bitcoin-cli listwalletdir | jq -e '.wallets[] | select(.name == "coin")' &> /dev/null; then
+	bitcoin-cli createwallet "coin" &> /dev/null
+fi
+
+if ! bitcoin-cli getwalletinfo &> /dev/null; then
+    bitcoin-cli loadwallet coin &> /dev/null
+fi
+
+cat > input.json
+ADDRESS=$(jq -r '.["address"]' input.json)
+MESSAGE=$(jq -r '.["message"]' input.json)
+rm input.json
+
+SIG=$(bitcoin-cli signmessage "$ADDRESS" "$MESSAGE")
+
+result="    {
+    \"version\": \"0\",
+    \"message\": \"Signature: $SIG\",
+    \"value\": null,
+    \"copyable\": true,
+    \"qr\": false
+}"
+
+echo $result
\ No newline at end of file
diff --git a/manifest.yaml b/manifest.yaml
index b6c2da4..52028b6 100644
--- a/manifest.yaml
+++ b/manifest.yaml
@@ -323,6 +323,35 @@ actions:
         range: "[0,1000000]"
         default: 0
         nullable: false
+  signmessage:
+    name: "Sign message"
+    description: "Sign a message with a bitcoin address."
+    allowed-statuses:
+      - running
+    implementation:
+      type: docker
+      image: main
+      system: false
+      entrypoint: signmessage.sh
+      args: []
+      io-format: json
+      mounts:
+        main: /root/.bitcoin
+      inject: true
+    input-spec:
+      address:
+        type: string
+        name: Address
+        description: "The bitcoin address to use to sign the message."
+        placeholder: ""
+        nullable: false
+      message:
+        type: string
+        name: Message
+        description: "The message to sign."
+        placeholder: ""
+        nullable: false
+
 migrations:
   from:
     "*":