From 2f7ceb68ecc05a600f76a7ba5dfdffde9e990723 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9o=20Haf?= <leo@haf.ovh>
Date: Wed, 26 Mar 2025 13:33:14 +0100
Subject: [PATCH 1/2] add assume UTXO support

---
 Dockerfile            |  1 +
 actions/assumeutxo.sh | 28 ++++++++++++++++++++++++++++
 manifest.yaml         | 23 ++++++++++++++++++++++-
 3 files changed, 51 insertions(+), 1 deletion(-)
 create mode 100644 actions/assumeutxo.sh

diff --git a/Dockerfile b/Dockerfile
index 9dfe582..59ca264 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -88,6 +88,7 @@ COPY ./manager/target/${ARCH}-unknown-linux-musl/release/bitcoind-manager \
      ./actions/sendcoin.sh \
      ./actions/sendall.sh \
      ./actions/signmessage.sh \
+     /actions/assumeutxo.sh \
      ./actions/reindex_chainstate.sh \
      ./actions/prioritise-transaction.sh \
      ./check-rpc.sh \
diff --git a/actions/assumeutxo.sh b/actions/assumeutxo.sh
new file mode 100644
index 0000000..42d8882
--- /dev/null
+++ b/actions/assumeutxo.sh
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+set -e
+
+cat > input.json
+
+URL=$(jq -r '.["location"]' input.json)
+
+rm input.json
+
+mkdir -p /tmp/snap
+
+if [ -e "/tmp/snap/snapshot" ]; then
+    bitcoin-cli loadtxoutset /tmp/snap/snapshot &
+else
+    wget -q $URL -O /tmp/snap/snapshot
+    bitcoin-cli loadtxoutset /tmp/snap/snapshot &
+fi
+
+result="    {
+    \"version\": \"0\",
+    \"message\": \"Consult the logs to see the progression of the snapshot loading. / DO NOT RESTART UNTIL THE SNAPSHOT IS LOADED.\",
+    \"value\": null,
+    \"copyable\": false,
+    \"qr\": false
+}"
+
+echo $result
diff --git a/manifest.yaml b/manifest.yaml
index 52028b6..fbbeba3 100644
--- a/manifest.yaml
+++ b/manifest.yaml
@@ -351,7 +351,28 @@ actions:
         description: "The message to sign."
         placeholder: ""
         nullable: false
-
+  assumeutxo:
+    name: "Assume UTXO"
+    description: "Use an UTXO snapshot for instant use of your node."
+    allowed-statuses:
+      - running
+    implementation:
+      type: docker
+      image: main
+      system: false
+      entrypoint: assumeutxo.sh
+      args: []
+      io-format: json
+      mounts:
+        main: /root/.bitcoin
+      inject: true
+    input-spec:
+      location:
+        type: string
+        name: "Snapshot URL"
+        description: "The URL where we download the snapshot"
+        placeholder: ""
+        nullable: false
 migrations:
   from:
     "*":

From 90d7acaa39111be5a10dbbbbf06091972b28cbdb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9o=20Haf?= <leo@haf.ovh>
Date: Wed, 2 Apr 2025 18:25:25 +0200
Subject: [PATCH 2/2] fix path + add more explicit error and check

---
 Dockerfile            |  2 +-
 actions/assumeutxo.sh | 49 ++++++++++++++++++++++++++++++++++---------
 2 files changed, 40 insertions(+), 11 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 59ca264..c942e2b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -88,7 +88,7 @@ COPY ./manager/target/${ARCH}-unknown-linux-musl/release/bitcoind-manager \
      ./actions/sendcoin.sh \
      ./actions/sendall.sh \
      ./actions/signmessage.sh \
-     /actions/assumeutxo.sh \
+     ./actions/assumeutxo.sh \
      ./actions/reindex_chainstate.sh \
      ./actions/prioritise-transaction.sh \
      ./check-rpc.sh \
diff --git a/actions/assumeutxo.sh b/actions/assumeutxo.sh
index 42d8882..a93bd54 100644
--- a/actions/assumeutxo.sh
+++ b/actions/assumeutxo.sh
@@ -11,18 +11,47 @@ rm input.json
 mkdir -p /tmp/snap
 
 if [ -e "/tmp/snap/snapshot" ]; then
-    bitcoin-cli loadtxoutset /tmp/snap/snapshot &
+    if [ $(sha256sum /tmp/snap/snapshot | awk '{ print $1 }') = "dc4bb43d58d6a25e91eae93eb052d72e3318bd98ec62a5d0c11817cefbba177b" ] || [ $(sha256sum /tmp/snap/snapshot | awk '{ print $1 }') = "43b3b1ad6e1005ffc0ff49514d0ffcc3e3ce671cc8d02da7fa7bac5405f89de4" ]; then
+        bitcoin-cli loadtxoutset /tmp/snap/snapshot &
+        result="    {
+            \"version\": \"0\",
+            \"message\": \"Consult the logs to see the progression of the snapshot loading. / DO NOT RESTART UNTIL THE SNAPSHOT IS LOADED.\",
+            \"value\": null,
+            \"copyable\": false,
+            \"qr\": false
+        }"
+    else
+        result="    {
+        \"version\": \"0\",
+        \"message\": \"The cached snapshot is not valid, deleting the cache, you can retry.\",
+        \"value\": null,
+        \"copyable\": false,
+        \"qr\": false
+        } "
+        rm /tmp/snap/snapshot
+    fi
 else
     wget -q $URL -O /tmp/snap/snapshot
-    bitcoin-cli loadtxoutset /tmp/snap/snapshot &
+    if [ $(sha256sum /tmp/snap/snapshot | awk '{ print $1 }') = "dc4bb43d58d6a25e91eae93eb052d72e3318bd98ec62a5d0c11817cefbba177b" ] || [ $(sha256sum /tmp/snap/snapshot | awk '{ print $1 }') = "43b3b1ad6e1005ffc0ff49514d0ffcc3e3ce671cc8d02da7fa7bac5405f89de4" ]; then
+        bitcoin-cli loadtxoutset /tmp/snap/snapshot &
+        result="    {
+            \"version\": \"0\",
+            \"message\": \"Consult the logs to see the progression of the snapshot loading. / DO NOT RESTART UNTIL THE SNAPSHOT IS LOADED.\",
+            \"value\": null,
+            \"copyable\": false,
+            \"qr\": false
+        }"
+    else
+        result="    {
+        \"version\": \"0\",
+        \"message\": \"The download link is not a valid snapshot\",
+        \"value\": null,
+        \"copyable\": false,
+        \"qr\": false
+        }"
+
+        rm /tmp/snap/snapshot
+    fi
 fi
 
-result="    {
-    \"version\": \"0\",
-    \"message\": \"Consult the logs to see the progression of the snapshot loading. / DO NOT RESTART UNTIL THE SNAPSHOT IS LOADED.\",
-    \"value\": null,
-    \"copyable\": false,
-    \"qr\": false
-}"
-
 echo $result