Socket Open
Socket has timed out: [Errno 104] ECONNRESET
Socket Close

Socket Open
assertion "0" failed: file "../../py/../extmod/modussl_mbedtls.c", line 151, function: socket_new
abort() was called at PC 0x40131ad3 on core 0

Backtrace: 0x400873fb:0x3ffce020 0x40087427:0x3ffce040 0x40131ad3:0x3ffce060 0x400ecf2b:0x3ffce090 0x400df716:0x3ffce0e0 0x400dbbc1:0x3ffce110 0x400dbc29:0x3ffce130 0x400e8c09:0x3ffce150 0x400df7a4:0x3ffce1f0 0x400dbbc1:0x3ffce220 0x400e8b7f:0x3ffce240 0x400df7a4:0x3ffce2e0 0x400dbbc1:0x3ffce360 0x400e8b7f:0x3ffce380 0x400df7a4:0x3ffce420 0x400dbbc1:0x3ffce450 0x400dbbee:0x3ffce470 0x400f7352:0x3ffce490 0x400f75b5:0x3ffce530 0x400eeea7:0x3ffce550

Rebooting...
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def verify_server(socket):
    certHash = binascii.hexlify(
        hashlib.sha256(socket.getpeercert(True)).digest())
    print("Certificate Hash: " + str(certHash))
    for server in server_dict:
        if certHash in server['fingerprints']:
            return True
    return False


def send_to_server(data, url, server_index=0):
    wdt.feed()
    print("Sending " + str(data) + "to server " + url)
    s = socket.socket()
    print("Socket Open")
    try:
        s.settimeout(30)
        # server redundancy should be implemented. #FIXME: This will probably
        # do a dns lookup every time - probably shouldn't.
        ai = socket.getaddrinfo(server_dict[server_index]['address'], 443)
        addr = ai[0][-1]  # cache this
        s.connect(addr)
        s = ssl.wrap_socket(s, cert=sump_cert_2.CERT, key=sump_cert_2.KEY)

        if not verify_server(s):
            print("Certificate doesn't match.")
            s.close()
            return None

        server = server_dict[server_index]
        http_headers = '\r\n'.join([
            "POST {} HTTP/1.1".format(url),
            "Connection: Keep-Alive",
            "Accept: */*",
            "Host: {}".format(server['address']),
            "User-Agent: SafeSumpSeldon",
            "Content-Type: application/x-msgpack",
            "Content-Length: {}".format(len(data)),
            "\r\n"])
        s.write(http_headers)
        s.write(data)
        response = s.read(2048)
    except OSError as e:
        print("Socket has timed out: {}".format(e))
    except Exception as e:
        print("Server connection failed: {}".format(e))
        store_in_backlog(data)
    else:
        return response
        # process_backlog()
    finally:
        s.close()
        print("Socket Close")
    return None