Merge pull request #152 from lnbits/LNURLimg

lnbits/extensions/withdraw/templates/withdraw/index.html

@@ -58,7 +58,20 @@
                   type="a"
                   :href="props.row.withdraw_url"
                   target="_blank"
-                ></q-btn>
+                >
+                  <q-tooltip> shareable link </q-tooltip></q-btn
+                >
+                <q-btn
+                  unelevated
+                  dense
+                  size="xs"
+                  icon="web_asset"
+                  :color="($q.dark.isActive) ? 'grey-7' : 'grey-5'"
+                  type="a"
+                  :href="'/withdraw/img/' + props.row.id"
+                  target="_blank"
+                  ><q-tooltip> embeddable image </q-tooltip></q-btn
+                >
                 <q-btn
                   unelevated
                   dense
@@ -66,7 +79,8 @@
                   icon="visibility"
                   :color="($q.dark.isActive) ? 'grey-7' : 'grey-5'"
                   @click="openQrCodeDialog(props.row.id)"
-                ></q-btn>
+                  ><q-tooltip> view LNURL </q-tooltip></q-btn
+                >
               </q-td>
               <q-td v-for="col in props.cols" :key="col.name" :props="props">
                 {{ col.value }}

lnbits/extensions/withdraw/views.py

@@ -1,6 +1,7 @@
 from quart import g, abort, render_template
 from http import HTTPStatus
-
+import pyqrcode
+from io import BytesIO
 from lnbits.decorators import check_user_exists, validate_uuids
 
 from . import withdraw_ext
@@ -20,6 +21,24 @@ async def display(link_id):
     return await render_template("withdraw/display.html", link=link, unique=True)
 
 
+@withdraw_ext.route("/img/<link_id>")
+async def img(link_id):
+    link = await get_withdraw_link(link_id, 0) or abort(HTTPStatus.NOT_FOUND, "Withdraw link does not exist.")
+    qr = pyqrcode.create(link.lnurl)
+    stream = BytesIO()
+    qr.svg(stream, scale=3)
+    return (
+        stream.getvalue(),
+        200,
+        {
+            "Content-Type": "image/svg+xml",
+            "Cache-Control": "no-cache, no-store, must-revalidate",
+            "Pragma": "no-cache",
+            "Expires": "0",
+        },
+    )
+
+
 @withdraw_ext.route("/print/<link_id>")
 async def print_qr(link_id):
     link = await get_withdraw_link(link_id) or abort(HTTPStatus.NOT_FOUND, "Withdraw link does not exist.")