Link fails with 403 repeatedly until it eventually recovers

[lawik]

06:48:16.099 [warn] [NervesHubLink] error: {:error, {:upgrade_failure, %{reason: %Mint.WebSocket.UpgradeFailureError{status_code: 403, headers: [{"date", "Fri, 17 May 2024 06:48:15 GMT"}, {"content-length", "0"}, {"vary", "accept-encoding"}, {"cache-control", "max-age=0, private, must-revalidate"}]}, status_code: 403, resp_headers: [{"date", "Fri, 17 May 2024 06:48:15 GMT"}, {"content-length", "0"}, {"vary", "accept-encoding"}, {"cache-control", "max-age=0, private, must-revalidate"}]}}}

06:48:16.099 [info]     :alarm_handler: {:set,
 {NervesHubLink.Disconnected,
  [
    reason: {:error,
     {:upgrade_failure,
      %{
        reason: %Mint.WebSocket.UpgradeFailureError{
          status_code: 403,
          headers: [
            {"date", "Fri, 17 May 2024 06:48:15 GMT"},
            {"content-length", "0"},
            {"vary", "accept-encoding"},
            {"cache-control", "max-age=0, private, must-revalidate"}
          ]
        },
        status_code: 403,
        resp_headers: [
          {"date", "Fri, 17 May 2024 06:48:15 GMT"},
          {"content-length", "0"},
          {"vary", "accept-encoding"},
          {"cache-control", "max-age=0, private, must-revalidate"}
        ]
      }}}
  ]}}

06:48:16.108 [warn] [NervesHubLink.Socket] Unhandled handle_info: {:EXIT, #Port<0.100>, :normal}

06:48:32.561 [info] disconnect --------

06:48:32.562 [warn] [NervesHubLink] error: {:error, {:upgrade_failure, %{reason: %Mint.WebSocket.UpgradeFailureError{status_code: 403, headers: [{"date", "Fri, 17 May 2024 06:48:31 GMT"}, {"content-length", "0"}, {"vary", "accept-encoding"}, {"cache-control", "max-age=0, private, must-revalidate"}]}, status_code: 403, resp_headers: [{"date", "Fri, 17 May 2024 06:48:31 GMT"}, {"content-length", "0"}, {"vary", "accept-encoding"}, {"cache-control", "max-age=0, private, must-revalidate"}]}}}

06:48:32.563 [info]     :alarm_handler: {:set,
 {NervesHubLink.Disconnected,
  [
    reason: {:error,
     {:upgrade_failure,
      %{
        reason: %Mint.WebSocket.UpgradeFailureError{
          status_code: 403,
          headers: [
            {"date", "Fri, 17 May 2024 06:48:31 GMT"},
            {"content-length", "0"},
            {"vary", "accept-encoding"},
            {"cache-control", "max-age=0, private, must-revalidate"}
          ]
        },
        status_code: 403,
        resp_headers: [
          {"date", "Fri, 17 May 2024 06:48:31 GMT"},
          {"content-length", "0"},
          {"vary", "accept-encoding"},
          {"cache-control", "max-age=0, private, must-revalidate"}
        ]
      }}}
  ]}}

06:48:32.572 [warn] [NervesHubLink.Socket] Unhandled handle_info: {:EXIT, #Port<0.105>, :normal}

This might be the setup of NervesCloud @joshk, or it could be normal thing.

Is there a token or something written to the data partition or something. It seems to happen after I've done a firmware update, it starts up, gets networking but fails to auth?

[lawik]

@joshk have a hunch this is because it tries to connect the NervesHubLink before NervesTime.synchronized? is true. Haven't verified but it seems plausible. If the time behavior is kind of naive or silly on start it might give a time that is several hours off and we allow about 90 seconds of diff.

[joshk]

I think @lawik has hit the nail on the head.

I have a PR which would add a time synchronisation check when the network is checked, but before I create a PR for that I would like to make a simple RTC lib or module in the NervesTime lib that bypasses NTP when using your host computer. (good for testing)

[joshk]

I had another idea, instead of a way to bypass NTP, I instead added a way to bypass the time sync check