support pc development with JS http bridge

tools/http2udb.py

@@ -0,0 +1,128 @@
+#!/usr/bin/python
+from __future__ import print_function, absolute_import, unicode_literals
+from http.server import BaseHTTPRequestHandler,HTTPServer
+
+from fido2.hid import CtapHidDevice, CTAPHID
+from fido2.client import Fido2Client, ClientError
+from fido2.ctap import CtapError
+from fido2.ctap1 import CTAP1
+from fido2.ctap2 import *
+from fido2.cose import *
+from fido2.utils import Timeout
+
+import socket,json,base64,ssl
+
+httpport = 8080
+udpport = 8111
+
+
+
+def ForceU2F(client,device):
+    client.ctap = CTAP1(device)
+    client.pin_protocol = None
+    client._do_make_credential = client._ctap1_make_credential
+    client._do_get_assertion = client._ctap1_get_assertion
+
+
+if __name__ == '__main__':
+    dev = next(CtapHidDevice.list_devices(), None)
+    print(dev)
+    if not dev:
+        raise RuntimeError('No FIDO device found')
+    client = Fido2Client(dev, 'https://example.com')
+    ForceU2F(client, dev)
+    ctap = client.ctap
+
+
+def to_websafe(data):
+    data = data.replace('+','-')
+    data = data.replace('/','_')
+    data = data.replace('=','')
+    return data
+
+def from_websafe(data):
+    data = data.replace('-','+')
+    data = data.replace('_','/')
+    return data + '=='[:(3*len(data)) % 4]
+
+def write(data):
+    msg = from_websafe(data)
+    msg = base64.b64decode(msg)
+    chal = b'A'*32
+    appid = b'A'*32
+    #print (msg)
+    #print (msg.decode())
+    #print (str(msg))
+    #msg = msg.decode('ascii')
+    #print('ascii:',repr(msg))
+    #print('ascii:',(type(msg)))
+    #print(msg + chal)
+
+    #data = client_param + app_param + struct.pack('>B', len(key_handle)) + key_handle
+    #msg = str(msg.decode())
+    #print(msg.decode())
+    s = ctap.authenticate(chal,appid,msg,)
+    print(s)
+    #sock.sendto(msg, ('127.0.0.1', udpport))
+
+def read():
+    #msg = [0]*64
+    pkt, _ = sock.recvfrom(1000)
+    #for i,v in enumerate(pkt):
+        #msg[i] = ord(v)
+    msg = base64.b64encode(pkt)
+    msg = to_websafe(pkt)
+    return msg
+
+class UDPBridge(BaseHTTPRequestHandler):
+    def end_headers (self):
+        self.send_header('Access-Control-Allow-Origin', '*')
+        BaseHTTPRequestHandler.end_headers(self)
+
+    def do_POST(self):
+        content_len = int(self.headers.get('Content-Length', 0))
+        post_body = self.rfile.read(content_len)
+        data = json.loads(post_body)['data']
+
+        print(data)
+        msg = from_websafe(data)
+        msg = base64.b64decode(msg)
+        chal = b'A'*32
+        appid = b'A'*32
+
+        s = ctap.authenticate(chal,appid,msg,)
+
+        data = struct.pack('B',s.user_presence) + struct.pack('>L',s.counter) + s.signature
+        data = base64.b64encode(data).decode('ascii')
+        data = to_websafe(data)
+        data = json.dumps({'data':data})
+        data = data.encode('ascii')
+
+        self.send_response(200)
+        self.send_header('Content-type','text/json')
+        self.end_headers()
+        self.wfile.write(data)
+
+
+    def do_GET(self):
+        self.send_response(200)
+        self.send_header('Content-type','text/json')
+        self.end_headers()
+
+        #msg = {'data': read()}
+        msg = {'data': 'rest'}
+
+        self.wfile.write(json.dumps(msg).encode())
+
+try:
+    server = HTTPServer(('', httpport), UDPBridge)
+    print('Started httpserver on port ' , httpport)
+
+    server.socket = ssl.wrap_socket (server.socket,
+            keyfile="../web/localhost.key", 
+            certfile='../web/localhost.crt', server_side=True)
+
+    server.serve_forever()
+except KeyboardInterrupt:
+    server.socket.close()
+