add spark backend and fix c-lightning.

docs/guide/wallets.md

@@ -21,6 +21,11 @@ Using this wallet requires the installation of the `pylightning` Python package.
 - `LNBITS_BACKEND_WALLET_CLASS`: **CLightningWallet**
 - `CLIGHTNING_RPC`: /file/path/lightning-rpc
 
+### Spark (c-lightning)
+
+- `LNBITS_BACKEND_WALLET_CLASS`: **SparkWallet**
+- `SPARK_URL`: http://10.147.17.230:9737/rpc
+- `SPARK_TOKEN`: secret_access_key
 
 ### LND (gRPC)
 

lnbits/wallets/__init__.py

@@ -7,3 +7,4 @@ from .opennode import OpenNodeWallet
 from .lnpay import LNPayWallet
 from .lnbits import LNbitsWallet
 from .lndrest import LndRestWallet
+from .spark import SparkWallet

lnbits/wallets/clightning.py

@@ -28,20 +28,26 @@ class CLightningWallet(Wallet):
 
     def pay_invoice(self, bolt11: str) -> PaymentResponse:
         r = self.l1.pay(bolt11)
-        ok, checking_id, fee_msat, error_message = True, None, 0, None
+        ok, checking_id, fee_msat, error_message = True, r["payment_hash"], r["msatoshi_sent"] - r["msatoshi"], None
         return PaymentResponse(ok, checking_id, fee_msat, error_message)
 
     def get_invoice_status(self, checking_id: str) -> PaymentStatus:
         r = self.l1.listinvoices(checking_id)
-        if r["invoices"][0]["status"] == "unpaid":
+        if not r["invoices"]:
             return PaymentStatus(False)
-        return PaymentStatus(True)
+        if r["invoices"][0]["label"] == checking_id:
+            return PaymentStatus(r["pays"][0]["status"] == "paid")
+        raise KeyError("supplied an invalid checking_id")
 
     def get_payment_status(self, checking_id: str) -> PaymentStatus:
-        r = self.l1.listsendpays(checking_id)
-        if not r.ok:
+        r = self.l1.listpays(payment_hash=checking_id)
+        if not r["pays"]:
+            return PaymentStatus(False)
+        if r["pays"][0]["payment_hash"] == checking_id:
+            status = r["pays"][0]["status"]
+            if status == "complete":
+                return PaymentStatus(True)
+            elif status == "failed":
+                return PaymentStatus(False)
             return PaymentStatus(None)
-        payments = [p for p in r.json()["payments"] if p["payment_hash"] == checking_id]
-        payment = payments[0] if payments else None
-        statuses = {"UNKNOWN": None, "IN_FLIGHT": None, "SUCCEEDED": True, "FAILED": False}
-        return PaymentStatus(statuses[payment["status"]] if payment else None)
+        raise KeyError("supplied an invalid checking_id")

lnbits/wallets/spark.py

@@ -0,0 +1,86 @@
+import random
+import requests
+from os import getenv
+
+from .base import InvoiceResponse, PaymentResponse, PaymentStatus, Wallet
+
+
+class SparkError(Exception):
+    pass
+
+
+class UnknownError(Exception):
+    pass
+
+
+class SparkWallet(Wallet):
+    def __init__(self):
+        self.url = getenv("SPARK_URL")
+        self.token = getenv("SPARK_TOKEN")
+
+    def __getattr__(self, key):
+        def call(*args, **kwargs):
+            if args and kwargs:
+                raise TypeError(f"must supply either named arguments or a list of arguments, not both: {args} {kwargs}")
+            elif args:
+                params = args
+            elif kwargs:
+                params = kwargs
+
+            r = requests.post(self.url, headers={"X-Access": self.token}, json={"method": key, "params": params})
+            try:
+                data = r.json()
+            except:
+                raise UnknownError(r.text)
+            if not r.ok:
+                raise SparkError(data["message"])
+            return data
+
+        return call
+
+    def create_invoice(self, amount: int, memo: str = "", description_hash: bytes = b"") -> InvoiceResponse:
+        label = "lbs{}".format(random.random())
+        print(description_hash, len(description_hash))
+
+        try:
+            if description_hash:
+                r = self.invoicewithdescriptionhash(
+                    msatoshi=amount * 1000, label=label, description_hash=description_hash.hex(),
+                )
+            else:
+                r = self.invoice(msatoshi=amount * 1000, label=label, description=memo, exposeprivatechannels=True)
+            ok, checking_id, payment_request, error_message = True, label, r["bolt11"], None
+        except (SparkError, UnknownError) as e:
+            ok, checking_id, payment_request, error_message = False, None, None, str(e)
+
+        return InvoiceResponse(ok, checking_id, payment_request, error_message)
+
+    def pay_invoice(self, bolt11: str) -> PaymentResponse:
+        try:
+            r = self.pay(bolt11)
+            ok, checking_id, fee_msat, error_message = True, r["payment_hash"], r["msatoshi_sent"] - r["msatoshi"], None
+        except (SparkError, UnknownError) as e:
+            ok, checking_id, fee_msat, error_message = False, None, None, str(e)
+
+        return PaymentResponse(ok, checking_id, fee_msat, error_message)
+
+    def get_invoice_status(self, checking_id: str) -> PaymentStatus:
+        r = self.listinvoices(label=checking_id)
+        if not r or not r.get("invoices"):
+            return PaymentStatus(None)
+        if r["invoices"][0]["status"] == "unpaid":
+            return PaymentStatus(False)
+        return PaymentStatus(True)
+
+    def get_payment_status(self, checking_id: str) -> PaymentStatus:
+        r = self.listpays(payment_hash=checking_id)
+        if not r["pays"]:
+            return PaymentStatus(False)
+        if r["pays"][0]["payment_hash"] == checking_id:
+            status = r["pays"][0]["status"]
+            if status == "complete":
+                return PaymentStatus(True)
+            elif status == "failed":
+                return PaymentStatus(False)
+            return PaymentStatus(None)
+        raise KeyError("supplied an invalid checking_id")