Using path package methods can cause errors on windows machines.
path methods are used for url operations and unix specific operation.
filepath methods are used for file system paths and its cross platform.
Remove strings.HasSuffix and use filepath.Ext and path.Ext for file and
url extenstions respectively.
## Summary
This commit refactors some of the flags of cloudflared to their own module, so that they can be used across the code without requiring to literal strings which are much more error prone.
Closes TUN-8914
Support rolling out the `support_datagram_v3` feature via remote feature rollout (DNS TXT record) with `dv3` key.
Consolidated some of the feature evaluation code into the features module to simplify the lookup of available features at runtime.
Reduced complexity for management logs feature lookup since it's a default feature.
Closes TUN-8807
Implements the endpoint that retrieves the configuration of a running instance.
The configuration consists in a map of cli flag to the provided value along with the uid that of the user that started the process
Allows for debugging the payloads that are sent in client mode to
the ssh server. Required to be run with --log-directory to capture
logging output. Additionally has maximum limit that is provided with
the flag that will only capture the first N number of reads plus
writes through the WebSocket stream. These reads/writes are not directly
captured at the packet boundary so some reconstruction from the
log messages will be required.
Added User-Agent for all out-going cloudflared access
tcp requests in client mode.
Added check to not run terminal logging in cloudflared access tcp
client mode to not obstruct the stdin and stdout.
By default, we want streaming logs to be able to stream debug logs
from cloudflared without needing to update the remote cloudflared's
configuration. This disconnects the provided local log level sent
to console, file, etc. from the level that management tunnel will
utilize via requested filters.
This change is focused on fixing rotating loggers in Windows
where it was failing due to Windows file semantics disallowing
the rotation while that file was still being open (because we
had multiple lumberjacks pointing to the same file).
This is fixed by ensuring the initialization happens only once.
This addresses a bug where logging would not be output when
cloudflared was run as a Windows Service.
That was happening because Windows Services have no stderr/out,
and the ConsoleWriter log was failing inside zerolog, which would
then not proceed to the next logger (the file logger).
We now overcome that by using our own multi writer that is resilient
to errors.
