From 19df2f888b90ab415d7b2ff7cfa19ce2c36df235 Mon Sep 17 00:00:00 2001
From: Ben Arc <ben@arc.wales>
Date: Wed, 20 Oct 2021 03:59:24 +0100
Subject: [PATCH] Added decode lnurl and extra payment check

---
 lnbits/core/templates/core/_api_docs.html | 31 ++++++++++++++++++-
 lnbits/core/views/api.py                  | 37 ++++++++++++++++++++++-
 2 files changed, 66 insertions(+), 2 deletions(-)

diff --git a/lnbits/core/templates/core/_api_docs.html b/lnbits/core/templates/core/_api_docs.html
index 4bb38fad..2acadc76 100644
--- a/lnbits/core/templates/core/_api_docs.html
+++ b/lnbits/core/templates/core/_api_docs.html
@@ -19,7 +19,7 @@
       <q-card-section>
         <code><span class="text-light-green">GET</span> /api/v1/wallet</code>
         <h5 class="text-caption q-mt-sm q-mb-none">Headers</h5>
-        <code>{"X-Api-Key": "<i>{{ wallet.adminkey }}</i>"}</code><br />
+        <code>{"X-Api-Key": "<i>{{ wallet.inkey }}</i>"}</code><br />
         <h5 class="text-caption q-mt-sm q-mb-none">
           Returns 200 OK (application/json)
         </h5>
@@ -94,6 +94,35 @@
       </q-card-section>
     </q-card>
   </q-expansion-item>
+
+  <q-expansion-item
+    group="api"
+    dense
+    expand-separator
+    label="Decode an invoice"
+  >
+    <q-card>
+      <q-card-section>
+        <code
+          ><span class="text-light-green">POST</span>
+          /api/v1/payments/decode</code
+        >
+        <h5 class="text-caption q-mt-sm q-mb-none">Headers</h5>
+        <code>{"X-Api-Key": "<i>{{ wallet.inkey }}</i>"}</code><br />
+        <h5 class="text-caption q-mt-sm q-mb-none">Body (application/json)</h5>
+        <code>{"invoice": &lt;string&gt;}</code>
+        <h5 class="text-caption q-mt-sm q-mb-none">
+          Returns 200 (application/json)
+        </h5>
+        <h5 class="text-caption q-mt-sm q-mb-none">Curl example</h5>
+        <code
+          >curl -X POST {{ request.url_root }}api/v1/payments/decode -d
+          '{"data": &lt;bolt11/lnurl, string&gt;}' -H "X-Api-Key:
+          <i>{{ wallet.inkey }}</i>" -H "Content-type: application/json"</code
+        >
+      </q-card-section>
+    </q-card>
+  </q-expansion-item>
   <q-expansion-item
     group="api"
     dense
diff --git a/lnbits/core/views/api.py b/lnbits/core/views/api.py
index ee330707..8853bc08 100644
--- a/lnbits/core/views/api.py
+++ b/lnbits/core/views/api.py
@@ -5,7 +5,7 @@ from binascii import unhexlify
 from http import HTTPStatus
 from typing import Dict, Optional, Union
 from urllib.parse import ParseResult, parse_qs, urlencode, urlparse, urlunparse
-
+from lnbits.bolt11 import Invoice
 import httpx
 from fastapi import Query, Request
 from fastapi.exceptions import HTTPException
@@ -34,6 +34,7 @@ from ..services import (
     create_invoice,
     pay_invoice,
     perform_lnurlauth,
+    check_invoice_status,
 )
 from ..tasks import api_invoice_listeners
 
@@ -61,6 +62,16 @@ async def api_update_wallet(
 
 @core_app.get("/api/v1/payments")
 async def api_payments(wallet: WalletTypeInfo = Depends(get_key_type)):
+    await get_payments(
+        wallet_id=wallet.wallet.id,
+        pending=True,
+        complete=True,
+    )
+    pendingPayments = await get_payments(wallet_id=wallet.wallet.id, pending=True)
+    for payment in pendingPayments:
+        await check_invoice_status(
+            wallet_id=payment.wallet_id, payment_hash=payment.payment_hash
+        )
     return await get_payments(wallet_id=wallet.wallet.id, pending=True, complete=True)
 
 
@@ -441,6 +452,30 @@ async def api_lnurlscan(code: str):
     return params
 
 
+@core_app.post("/api/v1/payments/decode")
+async def api_payments_decode(data: str = Query(None)):
+    try:
+        if g.data["data"][:5] == "LNURL":
+            url = lnurl.decode(g.data["data"])
+            return {"domain": url}
+        else:
+            invoice = bolt11.decode(g.data["data"])
+            return {
+                "payment_hash": invoice.payment_hash,
+                "amount_msat": invoice.amount_msat,
+                "description": invoice.description,
+                "description_hash": invoice.description_hash,
+                "payee": invoice.payee,
+                "date": invoice.date,
+                "expiry": invoice.expiry,
+                "secret": invoice.secret,
+                "route_hints": invoice.route_hints,
+                "min_final_cltv_expiry": invoice.min_final_cltv_expiry,
+            }
+    except:
+        return {"message": "Failed to decode"}
+
+
 @core_app.post("/api/v1/lnurlauth", dependencies=[Depends(WalletAdminKeyChecker())])
 async def api_perform_lnurlauth(callback: str):
     err = await perform_lnurlauth(callback)