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Add first PoC

config
sqozz 3 years ago
commit
f4d951a088
  1. 1
      requirements.txt
  2. 40
      update_server.py

1
requirements.txt

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bottle==0.12.13

40
update_server.py

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#!/usr/bin/env python3
import hashlib
from bottle import route, run, request, HTTPResponse, response
import pdb
updated = True
filename = "firmware.bin"
@route('/update')
def update():
#for header in request.headers.keys():
# print("{}: {}".format(header, request.headers.get(header, "")))
requestor_mac = request.headers.get("X-Esp8266-Sta-Mac")
running_fw_md5 = request.headers.get("X-Esp8266-Sketch-Md5", "")
print("Update request from {} with fw {}".format(requestor_mac, running_fw_md5))
available_fw_md5 = md5(filename)
print("Lates firmware available is {} - ".format(available_fw_md5), end="")
if available_fw_md5 != running_fw_md5:
print("Differs, updating…")
response.set_header('Content-Type', 'application/octet-stream')
response.set_header('Content-Disposition', ' attachment; filename={}'.format(filename))
with open(filename, "rb") as firmware:
fw = firmware.read()
response.set_header('Content-Length', '{}'.format(len(fw)))
response.set_header('X-MD5', available_fw_md5)
return fw
else:
print("Same, skipping…")
return HTTPResponse(status=304, body="")
def md5(fname):
hash_md5 = hashlib.md5()
with open(fname, "rb") as f:
for chunk in iter(lambda: f.read(4096), b""):
hash_md5.update(chunk)
return hash_md5.hexdigest()
run(host='localhost', port=8080, debug=True)
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