added pypng

Pipfile

@@ -25,6 +25,7 @@ trio = "==0.16.0"
 hypercorn = {extras = ["trio"], version = "*"}
 sqlalchemy-aio = "*"
 pyqrcode = "*"
+pypng = "*"
 
 [dev-packages]
 black = "==20.8b1"

Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "259c5d4b87c631fa28c4df9714e3cac58e4d73e64375752b4d564140e220a22b"
+            "sha256": "0ce59c4683840d106bd734853c04d6ce18ac2eee8ef001d663111833bb51931d"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -307,31 +307,38 @@
         },
         "pydantic": {
             "hashes": [
-                "sha256:025bf13ce27990acc059d0c5be46f416fc9b293f45363b3d19855165fee1874f",
-                "sha256:185e18134bec5ef43351149fe34fda4758e53d05bb8ea4d5928f0720997b79ef",
-                "sha256:213125b7e9e64713d16d988d10997dabc6a1f73f3991e1ff8e35ebb1409c7dc9",
-                "sha256:24ca47365be2a5a3cc3f4a26dcc755bcdc9f0036f55dcedbd55663662ba145ec",
-                "sha256:38be427ea01a78206bcaf9a56f835784afcba9e5b88fbdce33bbbfbcd7841229",
-                "sha256:475f2fa134cf272d6631072554f845d0630907fce053926ff634cc6bc45bf1af",
-                "sha256:514b473d264671a5c672dfb28bdfe1bf1afd390f6b206aa2ec9fed7fc592c48e",
-                "sha256:59e45f3b694b05a69032a0d603c32d453a23f0de80844fb14d55ab0c6c78ff2f",
-                "sha256:5b24e8a572e4b4c18f614004dda8c9f2c07328cb5b6e314d6e1bbd536cb1a6c1",
-                "sha256:6e3874aa7e8babd37b40c4504e3a94cc2023696ced5a0500949f3347664ff8e2",
-                "sha256:8d72e814c7821125b16f1553124d12faba88e85405b0864328899aceaad7282b",
-                "sha256:a4143c8d0c456a093387b96e0f5ee941a950992904d88bc816b4f0e72c9a0009",
-                "sha256:b2b054d095b6431cdda2f852a6d2f0fdec77686b305c57961b4c5dd6d863bf3c",
-                "sha256:c59ea046aea25be14dc22d69c97bee629e6d48d2b2ecb724d7fe8806bf5f61cd",
-                "sha256:d1fe3f0df8ac0f3a9792666c69a7cd70530f329036426d06b4f899c025aca74e",
-                "sha256:d8df4b9090b595511906fa48deda47af04e7d092318bfb291f4d45dfb6bb2127",
-                "sha256:dba5c1f0a3aeea5083e75db9660935da90216f8a81b6d68e67f54e135ed5eb23",
-                "sha256:e682f6442ebe4e50cb5e1cfde7dda6766fb586631c3e5569f6aa1951fd1a76ef",
-                "sha256:ecb54491f98544c12c66ff3d15e701612fc388161fd455242447083350904730",
-                "sha256:f5b06f5099e163295b8ff5b1b71132ecf5866cc6e7f586d78d7d3fd6e8084608",
-                "sha256:f6864844b039805add62ebe8a8c676286340ba0c6d043ae5dea24114b82a319e",
-                "sha256:ffd180ebd5dd2a9ac0da4e8b995c9c99e7c74c31f985ba090ee01d681b1c4b95"
+                "sha256:0b71ca069c16470cb00be0acaf0657eb74cbc4ff5f11b42e79647f170956cda3",
+                "sha256:12ed0b175bba65e29dfc5859cd539d3512f58bb776bf620a3d3338501fd0f389",
+                "sha256:22fe5756c6c57279234e4c4027a3549507aca29e9ee832d6aa39c367cb43c99f",
+                "sha256:26821f61623b01d618bd8b3243f790ac8bd7ae31b388c0e41aa586002cf350eb",
+                "sha256:2bc9e9f5d91a29dec53346efc5c719d82297885d89c8a62b971492fba222c68d",
+                "sha256:42b8fb1e4e4783c4aa31df44b64714f96aa4deeacbacf3713a8a238ee7df3b2b",
+                "sha256:4a83d24bcf9ce8e6fa55c379bba1359461eedb85721bfb3151e240871e2b13a8",
+                "sha256:5759a4b276bda5ac2360f00e9b1e711aaac51fabd155b422d27f3339710f4264",
+                "sha256:77e04800d19acc2a8fbb95fe3d47ff397ce137aa5a2b32cc23a87bac70dda343",
+                "sha256:865410a6df71fb60294887770d19c67d499689f7ce64245182653952cdbd4183",
+                "sha256:91baec8ed771d4c53d71ef549d8e36b0f92a31c32296062d562d1d7074dd1d6e",
+                "sha256:999cc108933425752e45d1bf2f57d3cf091f2a5e8b9b8afab5b8872d2cc7645f",
+                "sha256:a0ff36e3f929d76b91d1624c6673dbdc1407358700d117bb7f29d5696c52d288",
+                "sha256:a989924324513215ad2b2cfd187426e6372f76f507b17361142c0b792294960c",
+                "sha256:ad2fae68e185cfae5b6d83e7915352ff0b6e5fa84d84bc6a94c3e2de58327114",
+                "sha256:b4e03c84f4e96e3880c9d34508cccbd0f0df6e7dc14b17f960ea8c71448823a3",
+                "sha256:c26d380af3e9a8eb9abe3b6337cea28f057b5425330817c918cf74d0a0a2303d",
+                "sha256:c8a3600435b83a4f28f5379f3bb574576521180f691828268268e9f172f1b1eb",
+                "sha256:ccc2ab0a240d01847f3d5f0f9e1582d450a2fc3389db33a7af8e7447b205a935",
+                "sha256:d361d181a3fb53ebfdc2fb1e3ca55a6b2ad717578a5e119c99641afd11b31a47",
+                "sha256:d5aeab86837f8799df0d84bec1190e6cc0062d5c5374636b5599234f2b39fe0a",
+                "sha256:edf37d30ea60179ef067add9772cf42299ea6cd490b3c94335a68f1021944ac4"
             ],
-            "markers": "python_version >= '3.6'",
-            "version": "==1.7.3"
+            "markers": "python_full_version >= '3.6.1'",
+            "version": "==1.8"
+        },
+        "pypng": {
+            "hashes": [
+                "sha256:1032833440c91bafee38a42c38c02d00431b24c42927feb3e63b104d8550170b"
+            ],
+            "index": "pypi",
+            "version": "==0.0.20"
         },
         "pyqrcode": {
             "hashes": [

lnbits/extensions/withdraw/views.py

@@ -1,6 +1,7 @@
 from quart import g, abort, render_template
 from http import HTTPStatus
 import pyqrcode
+import png
 from lnbits.decorators import check_user_exists, validate_uuids
 
 from . import withdraw_ext