No connection unless proxy is set

[RyanHakurei]

The app will claim that there is not an internet connection unless a proxy is set.

[jorgheymans]

This is what i'm seeing, running Ubuntu 19.1

[TingPing]

It has nothing to do with this package I'm sure.

[jorgheymans]

I installed the normal spotify client, there i don't have the error so firewall rules are definitely ok. Can you please reopen ?

[TingPing]

Maybe Spotify loads proxy settings from somewhere on the host?

I don't know, but flatpak doesn't firewall anything.

[jorgheymans]

i'm guessing flatpak maybe isolates or prohibits some system calls which bubble up eventually as an internet connection error. Is there a way to see what flatpak is doing in the background, a logfile or so?

[Erick555]

Flatpak does block some syscalls but it shouldn't cause such issues. You may debug spotify itself with --show-console flag.

[jorgheymans]

here is the output, but not sure the flag got passed to spotify ? (not i on purpose put wrong password, as you can see it's an http transport error)

heymjo@heymjo-xps-13-9370:~$ /app/extra/bin/spotify: /app/lib/libcurl-gnutls.so.4: no version information available (required by /app/extra/bin/spotify)
Gtk-Message: 21:26:18.981: Failed to load module "overlay-scrollbar"
Gtk-Message: 21:26:18.983: Failed to load module "atk-bridge"
Gtk-Message: 21:26:18.995: Failed to load module "canberra-gtk-module"
/app/extra/share/spotify/spotify: /app/lib/libcurl-gnutls.so.4: no version information available (required by /app/extra/share/spotify/spotify)
/proc/self/exe: /app/lib/libcurl-gnutls.so.4: no version information available (required by /proc/self/exe)
19:26:19.140 I [connectivity_manager.cpp:116    ] Access allowance changed from online: 0 stream: 0, sync: 0, persistent conn: 0 to online: 1 stream: 1, sync: 0, persistent conn: 1
19:26:19.143 I [network_controller.cpp:76       ] Connectivity policy is initially allow_all
19:26:19.143 I [network_controller.cpp:78       ] Connection type is initially unknown
19:26:19.143 I [network_controller.cpp:96       ] Enabling all persistent connections
19:26:19.143 I [connectivity_manager.cpp:286    ] Connectivity rules changed from network: 1 (roaming: 0), sync over wifi: 1, sync over cellular: 0 to network: 1 (roaming: 1), sync over wifi: 1, sync over cellular: 0
19:26:19.143 I [connectivity_manager.cpp:134    ] Scheduling emission of signal.
19:26:19.144 I [connectivity_manager.cpp:125    ] Emitting signal.
19:26:19.145 I [nm_network_notifier.cpp:144     ] D-Bus name 'org.freedesktop.NetworkManager' does not exist on system bus
/proc/self/exe: /app/lib/libcurl-gnutls.so.4: no version information available (required by /proc/self/exe)
19:26:19.198 I [mpris.cpp:310                   ] Received MPRIS MediaPlayer2.Player 'Get' request, but no metadata is available
19:26:19.198 I [mpris.cpp:310                   ] Received MPRIS MediaPlayer2.Player 'Get' request, but no metadata is available
[0330/212619.562448:ERROR:buffer_manager.cc(488)] [.DisplayCompositor]GL ERROR :GL_INVALID_OPERATION : glBufferData: <- error from previous GL command
19:26:24.143 E [storage_error_logger_impl.cpp:101] Storage error: realm: -1, file: 0000000000000000000000000000000000000000, error: 18, OS error: 61, count: 1, path /home/heymjo/.var/app/com.spotify.Client/cache/spotify/Storage/
19:26:31.469 I [local_authenticator.cpp:442     ] Skipping offline login: no such user
19:26:31.687 I [login_controller_impl.cpp:86    ] Login5: Failed authenticating: login5_http_transport_error
19:26:31.687 I [login_controller_impl.cpp:517   ] Login5: success required

(note i have other flatpak apps like zoom working just fine)

[TingPing]

Flatpak does literally nothing to isolate you from network interfaces.

[TingPing]

login5_http_transport_error

If you want to debug this further you could install and configure Wireshark to capture HTTP traffic maybe.

[baloo]

I hit the same issue, and I've been running tcpdump and strace. It looks like it connects fine, my guess is that it's related to this instead:

19:26:24.143 E [storage_error_logger_impl.cpp:101] Storage error: realm: -1, file: 0000000000000000000000000000000000000000, error: 18, OS error: 61, count: 1, path /home/heymjo/.var/app/com.spotify.Client/cache/spotify/Storage

but I've been unable to find what syscall triggered that :(