* lib/api, lib/connections, gui: Show connection error for disconnected devices (fixes#3345)
This adds functionality in the connetions service to track the last
error per address. That is in turn exposed in the /rest/system/status
API method, as that is also where we already show the listener status
from the connection service.
The GUI uses this info where it lists addresses, showing errors (if any)
in red underneath each address.
I also slightly refactored the existing status method on the connection
service to have a better name and return typed information.
* ok
* review
* formatting
* review
Using AngularJS markup (that is, AngularJS expressions enclosed in double curly braces) in HTML attributes that reference URLs is not recommended: the browser may attempt to fetch the URL before the AngularJS compiler evaluates the markup, resulting in a request for an invalid URL.
* lib/tlsutil: Enable TLS 1.3 when available, on test builds (fixes#5065)
This enables TLS 1.3 negotiation on Go 1.12 by setting the GODEBUG
variable. For now, this just gets enabled on test versions (those with a
dash in the version number).
Users wishing to enable this on production builds can set GODEBUG
manually.
The string representation of connections now includes the TLS version
and cipher suite. This becomes part of the log output on connections.
That is, when talking to an old client:
Established secure connection .../TLS1.2-TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
and now potentially:
Established secure connection .../TLS1.3-TLS_AES_128_GCM_SHA256
(The cipher suite was there previously in the log output, but not the
TLS version.)
I also added this info as a new Crypto() method on the connection, and
propagate this out to the API and GUI, where it can be seen in the
connection address hover (although with bad word wrapping sometimes).
* wip
* wip
This adds booleans to the /system/version response to advice the GUI
whether the running version is a candidate release or not. (We could
parse it from the version string, but why duplicate the logic.)
Additionally the settings dialog locks down the upgrade and usage
reporting options on candidate releases. This matches the current
behavior, it just makes it obvious what actually *can* be chosen.
