All,
I occasionally see this in my catalina log file:
17-Jun-2020 06:29:57.499 INFO [http-nio-8080-exec-2]
org.apache.coyote.http11.Http11Processor.service Error parsing HTTP request
header
Note: further occurrences of HTTP request parsing errors will be logged at
DEBUG level.
java.lang.IllegalArgumentException: Invalid character found in method
name. HTTP method names must be tokens
at
org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:416)
at
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:260)
at
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1639)
at
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
We are set up to use header authentication -- so at
https://agora2004.cs.calvin.edu we have an nginx server running as a proxy. It
adds the correct header to the http request and forwards to
agora2004.cs.calvin.edu:8080 where tomcat9 is listening.
Is it possible that this error is just from some bot trying to connect to 8080
directly? Or is this indicative of some other problem.
BTW, I'm also having routing problems on my installation -- so I cannot go to a
subpage right now. I'm wondering if this error is part of that problem.
thanks.
Vic
Prof. Victor Norman
Computer Science
Calvin College University
[email protected]<mailto:[email protected]>
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"A designer knows he has achieved perfection not when there is nothing left to
add, but when there is nothing left to take away." -- Antoine de Saint Exupéry
