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