Data channel messages can be sent only when the data channel is open.
Otherwise the message is simply lost. Clients of the
PeerConnectionWrapper do not need to be aware of that detail or keep
track of whether the data channel was open already or not, so now data
channel messages sent before the data channel is open are queued and
sent once the data channel is opened.
Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>
Data channel messages are expected to be sent using the "status" data
channel that is locally created. However, if another data channel was
opened by the remote peer the reference to the "status" data channel was
overwritten with the new data channel, and messages were sent instead on
the remote data channel.
In current Talk versions that was not a problem, and the change makes no
difference either, because since the support for Janus 1.x was added
data channel messages are listened on all data channels, independently
of their label or whether they were created by the local or remote peer.
However, in older Talk versions this fixes a regression introduced with
the support for Janus 1.x. In those versions only messages coming from
the "status" or "JanusDataChannel" data channels were taken into
account. When Janus is not used the WebUI opens the legacy
"simplewebrtc" data channel, so that data channel may be the one used to
send data channel messages (if it is open after the "status" data
channel), but the messages received on that data channel were ignored by
the WebUI. Nevertheless, at this point this is more an academic problem
than a real world problem, as it is unlikely that there are many
Nextcloud servers with Talk < 16 and without HPB being used.
Independently of all that, when the peer connection is removed only the
"status" data channel is disposed, but none of the remote data channels
are. This is just a variation of an already existing bug (the last open
data channel was the one disposed due to being the last saved reference,
but the rest were not) and it will be fixed in another commit.
Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>
The legacy name was a bit strange, so now it is renamed to just "send"
as the parameter type ("DataChannelMessage") gives enough context.
Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>
This implicitly fixes trying to send the initial state on the latest
remote data channel found (which is the one stored in the "dataChannel"
attribute of the "PeerConnectionWrapper") when any other existing data
channel changes its status to open. Nevertheless, as all this will be
reworked, no unit test was added for it.
Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>
Log methods are static, so they can not be mocked using Mockito.
Although it might be possible to use PowerMockito a dummy implementation
was added instead, as Log uses are widespread and it is not something
worth mocking anyway.
Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>
The PeerConnectionWrapper does not need to be injected in the
application, nor the Context needs to be injected in the
PeerConnectionWrapper. This all seems to be leftovers from the past, and
removing them would ease adding unit tests for the
PeerConnectionWrapper.
Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>
