Crashes without internet connection

[nicorikken]

Describe the bug
OpenAndroidInstaller crashes without an internet connection.

To Reproduce
Steps to reproduce the behavior:

1. Install as Flatpak
2. Ensure no internet connection
3. Run by clicking the icon and see the app failing to start
4. Run as Flatpak through the CLI and see a stacktrace

Expected behavior
Internet connection is not necessary.

Log file

Logs from running flatpak from the commandline

$ flatpak run org.openandroidinstaller.OpenAndroidInstaller
Traceback (most recent call last):
  File "/usr/lib/python3.10/urllib/request.py", line 1348, in do_open
    h.request(req.get_method(), req.selector, req.data, headers,
  File "/usr/lib/python3.10/http/client.py", line 1283, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/usr/lib/python3.10/http/client.py", line 1329, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/usr/lib/python3.10/http/client.py", line 1278, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/usr/lib/python3.10/http/client.py", line 1038, in _send_output
    self.send(msg)
  File "/usr/lib/python3.10/http/client.py", line 976, in send
    self.connect()
  File "/usr/lib/python3.10/http/client.py", line 1448, in connect
    super().connect()
  File "/usr/lib/python3.10/http/client.py", line 942, in connect
    self.sock = self._create_connection(
  File "/usr/lib/python3.10/socket.py", line 824, in create_connection
    for res in getaddrinfo(host, port, 0, SOCK_STREAM):
  File "/usr/lib/python3.10/socket.py", line 955, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno -3] Temporary failure in name resolution

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/app/lib/python3.10/site-packages/flet/flet.py", line 492, in _download_fletd
    urllib.request.urlretrieve(flet_url, temp_arch)
  File "/usr/lib/python3.10/urllib/request.py", line 241, in urlretrieve
    with contextlib.closing(urlopen(url, data)) as fp:
  File "/usr/lib/python3.10/urllib/request.py", line 216, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/lib/python3.10/urllib/request.py", line 519, in open
    response = self._open(req, data)
  File "/usr/lib/python3.10/urllib/request.py", line 536, in _open
    result = self._call_chain(self.handle_open, protocol, protocol +
  File "/usr/lib/python3.10/urllib/request.py", line 496, in _call_chain
    result = func(*args)
  File "/usr/lib/python3.10/urllib/request.py", line 1391, in https_open
    return self.do_open(http.client.HTTPSConnection, req,
  File "/usr/lib/python3.10/urllib/request.py", line 1351, in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error [Errno -3] Temporary failure in name resolution>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/app/lib/python3.10/site-packages/openandroidinstaller/openandroidinstaller.py", line 337, in <module>
    startup()
  File "/app/lib/python3.10/site-packages/click/core.py", line 1130, in __call__
    return self.main(*args, **kwargs)
  File "/app/lib/python3.10/site-packages/click/core.py", line 1055, in main
    rv = self.invoke(ctx)
  File "/app/lib/python3.10/site-packages/click/core.py", line 1404, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/app/lib/python3.10/site-packages/click/core.py", line 760, in invoke
    return __callback(*args, **kwargs)
  File "/app/lib/python3.10/site-packages/openandroidinstaller/openandroidinstaller.py", line 330, in startup
    ft.app(
  File "/app/lib/python3.10/site-packages/flet/flet.py", line 102, in app
    conn = _connect_internal(
  File "/app/lib/python3.10/site-packages/flet/flet.py", line 192, in _connect_internal
    port = _start_flet_server(
  File "/app/lib/python3.10/site-packages/flet/flet.py", line 292, in _start_flet_server
    fletd_path = _download_fletd()
  File "/app/lib/python3.10/site-packages/flet/flet.py", line 500, in _download_fletd
    os.remove(temp_arch)
FileNotFoundError: [Errno 2] No such file or directory: '/tmp/fletd-0.3.2-linux-amd64.tar.gz'

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: Debian 10
• Version: 0.4.3-beta

Additional context
Went to a Repaircafé with images downloaded in advance and didn't expect to need an internet connection. Had to hussle to get one and start the process.

[tsterbak]

That's a good catch, thanks for reporting it.
I'm in contract with the developers of the frontend frame work to resolve this issue.

[tsterbak]

I'm working on resolving this for the flatpak version.
@nicorikken did you have the same issues with, the executable version?

[nicorikken]

Today I tried with 0.5.1-beta. Flatpak still produces the error. The executable downloaded from the GitHub releases page works well.

[tsterbak]

Today I tried with 0.5.1-beta. Flatpak still produces the error. The executable downloaded from the GitHub releases page works well.

Thanks for trying again :) . Very good to know!
I guess the flatpak tries to initialize something on the first start, while the executable already has it for some reason