Andreas Bilger created LOG4NET-652:
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Summary: Pattern with context property causes
PlatformNotSupportedException on Linux
Key: LOG4NET-652
URL: https://issues.apache.org/jira/browse/LOG4NET-652
Project: Log4net
Issue Type: Bug
Components: Core
Affects Versions: 2.0.10
Environment: Linux (Docker), .NET Core 2.2, .NET Core 3.1
Reporter: Andreas Bilger
Attachments: ConsoleApp1.zip
As mentioned in LOG4NET-429 and LOG4NET-421 (introduced in LOG4NET-205), having
a custom property in a layout pattern makes each each log event resolve the
(Windows) user name with
{code:c#}
log4net.Core.LoggingEvent.get_UserName()
{code}
which calls
{code:c#}
System.Security.Principal.WindowsIdentity.GetCurrent()
{code}
On Linux this leads to an internal exception:
{code:bash}
System.PlatformNotSupportedException: Windows Principal functionality is not
supported on this platform.
{code}
This happens with versions 2.0.10 and 2.0.11 on .NET Core 2.2 and .NET Core 3.1.
I attached a small console application project for reproduction in a docker
image:
* Extract the zip
* Run {{docker build . -f Dockerfile -t log4net.test:latest}} to build a Linux
docker image and compile the code
* Run {{docker run --name l4n -it --rm log4net.test:latest}} to run that image
in a docker container and open an interactive shell
* And in the shell, run {{dotnet ConsoleApp1.dll}} to execute the compiled
assembly
With internal debugging enabled, this produces the following console output:
{code:bash}
log4net: log4net assembly [log4net, Version=2.0.11.0, Culture=neutral,
PublicKeyToken=669e0ddf0bb1aa2a]. Loaded from [/app/log4net.dll]. (.NET Runtime
[3.1.8] on Unix 4.19.128.0)
log4net: defaultRepositoryType [log4net.Repository.Hierarchy.Hierarchy]
log4net: Creating repository for assembly [ConsoleApp1, Version=1.0.0.0,
Culture=neutral, PublicKeyToken=null]
log4net: Assembly [ConsoleApp1, Version=1.0.0.0, Culture=neutral,
PublicKeyToken=null] Loaded From [/app/ConsoleApp1.dll]
log4net: Assembly [ConsoleApp1, Version=1.0.0.0, Culture=neutral,
PublicKeyToken=null] does not have a RepositoryAttribute specified.
log4net: Assembly [ConsoleApp1, Version=1.0.0.0, Culture=neutral,
PublicKeyToken=null] using repository [log4net-default-repository] and
repository type [log4net.Repository.Hierarchy.Hierarchy]
log4net: Creating repository [log4net-default-repository] using type
[log4net.Repository.Hierarchy.Hierarchy]
log4net: configuring repository [log4net-default-repository] using file
[/app/ConsoleApp1.log4net.config]
log4net: configuring repository [log4net-default-repository] using stream
log4net: loading XML configuration
log4net: Configuring Repository [log4net-default-repository]
log4net: Configuration update mode [Merge].
log4net: Logger [root] Level string is [DEBUG].
log4net: Logger [root] level set to [name="DEBUG",value=30000].
log4net: Loading Appender [Log] type: [log4net.Appender.RollingFileAppender]
log4net: Setting Property [File] to String value [Logs/ConsoleApp1]
log4net: Setting Property [AppendToFile] to Boolean value [True]
log4net: Setting Property [LockingModel] to object
[log4net.Appender.FileAppender+InterProcessLock]
log4net: Setting Property [RollingStyle] to RollingMode value [Date]
log4net: Setting Property [StaticLogFileName] to Boolean value [False]
log4net: Setting Property [DatePattern] to String value [-yyyy-MMMM\.\l\o\g]
log4net: Converter [message] Option [] Format
[min=-1,max=2147483647,leftAlign=False]
log4net: Converter [newline] Option [] Format
[min=-1,max=2147483647,leftAlign=False]
log4net: Setting Property [ConversionPattern] to String value [%date
[%property{pid}|%3thread] %-5level %message%newline]
log4net: Converter [date] Option [] Format
[min=-1,max=2147483647,leftAlign=False]
log4net: Converter [literal] Option [ [] Format
[min=-1,max=2147483647,leftAlign=False]
log4net: Converter [property] Option [pid] Format
[min=-1,max=2147483647,leftAlign=False]
log4net: Converter [literal] Option [|] Format
[min=-1,max=2147483647,leftAlign=False]
log4net: Converter [thread] Option [] Format
[min=3,max=2147483647,leftAlign=False]
log4net: Converter [literal] Option [] ] Format
[min=-1,max=2147483647,leftAlign=False]
log4net: Converter [level] Option [] Format
[min=5,max=2147483647,leftAlign=True]
log4net: Converter [literal] Option [ ] Format
[min=-1,max=2147483647,leftAlign=False]
log4net: Converter [message] Option [] Format
[min=-1,max=2147483647,leftAlign=False]
log4net: Converter [newline] Option [] Format
[min=-1,max=2147483647,leftAlign=False]
log4net: Setting Property [Layout] to object [log4net.Layout.PatternLayout]
log4net: Type = [0], r0 = [-1970-January.log], r1 = [-1970-January.log]
log4net: Type = [1], r0 = [-1970-January.log], r1 = [-1970-January.log]
log4net: Type = [2], r0 = [-1970-January.log], r1 = [-1970-January.log]
log4net: Type = [3], r0 = [-1970-January.log], r1 = [-1970-January.log]
log4net: Type = [4], r0 = [-1970-January.log], r1 = [-1970-January.log]
log4net: Type = [5], r0 = [-1970-January.log], r1 = [-1970-February.log]
log4net: Searched for existing files in [/app/Logs]
log4net: curSizeRollBackups starts at [0]
log4net: Opening file for writing [/app/Logs/ConsoleApp1-2020-September.log]
append [True]
log4net: Created Appender [Log]
log4net: Adding appender named [Log] to logger [root].
log4net: Hierarchy Threshold []
log4net:ERROR [RollingFileAppender] ErrorCode: GenericFailure. Failed in
DoAppend
System.PlatformNotSupportedException: Windows Principal functionality is not
supported on this platform.
at System.Security.Principal.WindowsIdentity.GetCurrent()
at log4net.Core.LoggingEvent.get_UserName()
at log4net.Core.LoggingEvent.CreateCompositeProperties()
at log4net.Core.LoggingEvent.LookupProperty(String key)
at log4net.Layout.Pattern.PropertyPatternConverter.Convert(TextWriter
writer, LoggingEvent loggingEvent)
at log4net.Layout.Pattern.PatternLayoutConverter.Convert(TextWriter writer,
Object state)
at log4net.Util.PatternConverter.Format(TextWriter writer, Object state)
at log4net.Layout.PatternLayout.Format(TextWriter writer, LoggingEvent
loggingEvent)
at log4net.Appender.AppenderSkeleton.RenderLoggingEvent(TextWriter writer,
LoggingEvent loggingEvent)
at log4net.Appender.TextWriterAppender.Append(LoggingEvent loggingEvent)
at log4net.Appender.FileAppender.Append(LoggingEvent loggingEvent)
at log4net.Appender.RollingFileAppender.Append(LoggingEvent loggingEvent)
at log4net.Appender.AppenderSkeleton.DoAppend(LoggingEvent loggingEvent)
{code}
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