Log4netTextFormatter does not escape message containing XML

[mkb137]

Describe the bug
The Log4netTextFormatter does not escape a log message containing XML special characters. For example,

Log.Debug( "Do<Something>")

will result in XML like:

<log4net:message>Do<Something></log4net:message>

Tools attempting to parse the XML will fail.

Expected behavior
The XML should be escaped, as in:

<log4net:message>Do&lt;Something&gt;</log4net:message>

Additional context
I'm using a customized version of Sentinel as the log reader (https://github.com/mkb137/Sentinel)

[FantasticFiasco]

Thanks! I'll look into this tonight, but I am currently on holiday and won't probably release a new version until the weekend. Will you be able to work around the issue?

[mkb137]

Yes, no problem.

[FantasticFiasco]

There is a new pre-release available on www.nuget.org, with a fix for your issue.

Would you be able to validate that the pre-release works as you'd expect? You will have to make some changes to your configuration of the UDP sink, please see the migration instructions here.

[mkb137]

I tried it and confirmed that it works.

[FantasticFiasco]

Release v6.0.0 is now live on nuget.org.

Thank you for reporting the issue!

[mkb137]

If you want to add it to your documentation, this is how you configure the sink in app.config settings:

		<add key="serilog:using:Udp" value="Serilog.Sinks.Udp" />
		<add key="serilog:write-to:Udp"/>
		<add key="serilog:write-to:Udp.remoteAddress" value="127.0.0.1"/>
		<add key="serilog:write-to:Udp.remotePort" value="9998"/>
		<add key="serilog:write-to:Udp.family" value="InterNetwork"/>
		<add key="serilog:write-to:Udp.formatter" value="Serilog.Sinks.Udp.TextFormatters.Log4netTextFormatter, Serilog.Sinks.Udp, Version=6.0.0.0, Culture=neutral, PublicKeyToken=24c2f752a8e58a10"/>

[FantasticFiasco]

Thanks! I've updated the readme with your provided configuration.

Best wishes to you on your coding journey!