serverwallet

commit 68a98f8ec74e88992772fe1252e8006258b08fe1
Author: lash <dev@holbrook.no>
Date:   Thu, 23 Oct 2025 02:33:21 +0100

Initial commit

Diffstat:
A
.gitignore
 | 
4
++++
A
requirements.txt
 | 
15
+++++++++++++++
A
srvaddrgen/__init__.py
 | 
1
+
A
srvaddrgen/app/app.py
 | 
56
++++++++++++++++++++++++++++++++++++++++++++++++++++++++
A
srvaddrgen/const.py
 | 
6
++++++

5 files changed, 82 insertions(+), 0 deletions(-)
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,4 @@
+uwsgi.ini
+build
+*.egg-info
+__pycache__
diff --git a/requirements.txt b/requirements.txt
@@ -0,0 +1,15 @@
+asn1crypto==1.5.1
+base58==2.1.1
+bip32==4.0
+cffi==2.0.0
+coincurve==20.0.0
+pycparser==2.23
+uWSGI==2.0.31
+asn1crypto==1.5.1
+base58==2.1.1
+bip32==4.0
+cffi==2.0.0
+coincurve==20.0.0
+lmdb==1.7.5
+pycparser==2.23
+uWSGI==2.0.31
diff --git a/srvaddrgen/__init__.py b/srvaddrgen/__init__.py
@@ -0,0 +1 @@
+from .const import DbKey
diff --git a/srvaddrgen/app/app.py b/srvaddrgen/app/app.py
@@ -0,0 +1,56 @@
+import os
+import json
+import hashlib
+import logging
+from bip32 import BIP32
+import base58
+import lmdb
+
+from srvaddrgen import DbKey
+
+logging.basicConfig(level=logging.DEBUG)
+logg = logging.getLogger()
+
+
+def application(environ, start_response):
+    status_code = 200
+    status_reason = 'OK'
+    status_content = b''
+
+    db_path = os.environ.get('SRVADDRGEN_DB_PATH', 'srvaddrgen_data')
+    env = lmdb.open(db_path, readonly=False)
+    xpub = os.environ.get("SRVADDRGEN_BTC_XPUB", None)
+    idx = -1
+    addr = None
+    k = DbKey.BTC_XPUB.value
+    xpub_bin = xpub.encode('utf-8')
+    if xpub != None:
+        tx = env.begin(write=True)
+        v = tx.get(k)
+        if v == None:
+            logg.info('BTC XPUB not set')
+            v = b'\x00' * 8
+            v += xpub_bin 
+            tx.put(k, v, dupdata=False)
+        tx.commit()
+
+    tx = env.begin()
+    v = tx.get(k)
+    idx = int.from_bytes(v[:8]) 
+    if v[8:] != xpub_bin:
+        status_code = 500
+        status_reason = 'Key changed.'
+        status_content = b'Master key has changed on server. Contact server administrator.'
+   
+    xpub = v[8:].decode('utf-8')
+    o = BIP32.from_xpub(xpub)
+    pubk_bytes = o.get_pubkey_from_path('m/0/' + str(idx))
+    addr = b'\x00' + hashlib.new('ripemd160', hashlib.new('sha256', pubk_bytes).digest()).digest()
+    pfx = hashlib.new('sha256', hashlib.new('sha256', addr).digest()).digest()[:4]
+    status_content = base58.b58encode(addr + pfx)
+
+    status = str(status_code) + ' ' + status_reason
+    headers = [('Content-Type', 'text/plain')]
+    start_response(status, headers)
+    #return json.dumps(o).encode('utf-8')
+    return status_content
diff --git a/srvaddrgen/const.py b/srvaddrgen/const.py
@@ -0,0 +1,6 @@
+import enum
+
+class DbKey(enum.Enum):
+    ADDR = b'\x00'
+    BTC_XPUB = b'\x01'
+    BTC_LIGHTNING = b'\x02'