Add mutinynet

sauron/.gitignore

@@ -0,0 +1 @@
+.venv/

sauron/README.md

@@ -24,6 +24,14 @@ Here is a fully reptilian example running against [blockstream.info](https://blo
 lightningd --mainnet --disable-plugin bcli --plugin $PWD/sauron.py --sauron-api-endpoint https://blockstream.info/api/
 ```
 
+
+Here is an example running against [mutinynet.com](https://mutinynet.com/):
+
+```
+lightningd --signet --disable-plugin bcli --plugin $PWD/sauron.py --sauron-api-endpoint https://mutinynet.com/api/
+```
+
+
 You can use also proxy your requests through [Tor](https://www.torproject.org/) by
 specifying a SOCKS proxy to use with the `--sauron-tor-proxy` startup option, in
 the form `address:port`.

sauron/requirements.txt

@@ -1,2 +1,2 @@
-pyln-client>=23.2
+pyln-client>=23.2,<=24.5
 requests[socks]>=2.23.0

sauron/sauron.py

@@ -40,12 +40,29 @@ def fetch(url):
 
 
 @plugin.init()
-def init(plugin, options, configuration, **kwargs):
-    plugin.api_endpoint = options["sauron-api-endpoint"]
+def init(plugin, options, **kwargs):
+    plugin.api_endpoint = options.get("sauron-api-endpoint", None)
     if not plugin.api_endpoint:
         raise SauronError("You need to specify the sauron-api-endpoint option.")
         sys.exit(1)
 
+    # Test for Esplora or mempoolspace
+    try:
+        # Esplora API
+        feerate_url = "{}/fee-estimates".format(plugin.api_endpoint)
+        feerate_req = fetch(feerate_url)
+        assert feerate_req.status_code == 200
+        plugin.is_mempoolspace = False
+    except AssertionError as e0:
+        try:
+            # MutinyNet API
+            feerate_url = "{}/v1/fees/recommended".format(plugin.api_endpoint)
+            feerate_req = fetch(feerate_url)
+            assert feerate_req.status_code == 200
+            plugin.is_mempoolspace = True
+        except AssertionError as e1:
+            raise Exception("Sauron API cannot be reached") from e1
+
     if options["sauron-tor-proxy"]:
         address, port = options["sauron-tor-proxy"].split(":")
         socks5_proxy = "socks5h://{}:{}".format(address, port)
@@ -188,7 +205,12 @@ def getutxout(plugin, txid, vout, **kwargs):
 
 @plugin.method("estimatefees")
 def estimatefees(plugin, **kwargs):
-    feerate_url = "{}/fee-estimates".format(plugin.api_endpoint)
+    if plugin.is_mempoolspace:
+        # MutinyNet API
+        feerate_url = "{}/v1/fees/recommended".format(plugin.api_endpoint)
+    else:
+        # Blockstream API
+        feerate_url = "{}/fee-estimates".format(plugin.api_endpoint)
 
     feerate_req = fetch(feerate_url)
     assert feerate_req.status_code == 200
@@ -204,7 +226,7 @@ def estimatefees(plugin, **kwargs):
         urgent = int(feerates["6"] * 10**3)
         very_urgent = int(feerates["2"] * 10**3)
 
-    feerate_floor = int(feerates["1008"] * 10**3)
+    feerate_floor = int(feerates.get("1008", slow) * 10**3)
     feerates = [
         {"blocks": 2, "feerate": very_urgent},
         {"blocks": 6, "feerate": urgent},
@@ -229,7 +251,7 @@ def estimatefees(plugin, **kwargs):
 plugin.add_option(
     "sauron-api-endpoint",
     "",
-    "The URL of the esplora instance to hit (including '/api').",
+    "The URL of the esplora or mempool.space instance to hit (including '/api').",
 )
 
 plugin.add_option(