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Merge pull request #885 from Fate-JH/cus-filter

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Simple Regex Filter
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Mazo 2021-07-02 17:31:01 +01:00 committed by GitHub
parent abf7135e64 a6b09faa84
commit 8da38d6c3d
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3 changed files with 36 additions and 24 deletions
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3
build.sbt
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@ -79,8 +79,7 @@ lazy val psforeverSettings = Seq(
"io.circe" %% "circe-generic" % "0.14.1",
"io.circe" %% "circe-parser" % "0.14.1",
"org.scala-lang.modules" %% "scala-parallel-collections" % "1.0.3",
"org.bouncycastle" % "bcprov-jdk15on" % "1.69",
"org.codehaus.janino" % "janino" % "3.1.4"
"org.bouncycastle" % "bcprov-jdk15on" % "1.69"
),
// TODO(chord): remove exclusion when SessionActor is refactored: https://github.com/psforever/PSF-LoginServer/issues/279
coverageExcludedPackages := "net\\.psforever\\.actors\\.session\\.SessionActor.*"

28
config/logback.xml
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@ -20,17 +20,9 @@
<encoder>
<pattern>%date{ISO8601} %5level %logger{35} - %msg%n</pattern>
</encoder>
<filter class="ch.qos.logback.core.filter.EvaluatorFilter">
<evaluator>
<matcher>
<Name>encrypted</Name>
<!-- occurs during latency or relogging complications; the messages are useless -->
<regex>Unexpected packet type EncryptedPacket</regex>
</matcher>
<expression>encrypted.matches(formattedMessage)</expression>
</evaluator>
<OnMatch>DENY</OnMatch>
<OnMismatch>NEUTRAL</OnMismatch>
<filter class="net.psforever.filter.MsgRegexFilter">
<!-- occurs during latency or relogging complications; the messages are useless -->
<regex>Unexpected packet type EncryptedPacket</regex>
</filter>
<filter class="net.psforever.filters.LoggerPrefixFilter">
<!--
@ -103,17 +95,9 @@
<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
<level>WARN</level>
</filter>
<filter class="ch.qos.logback.core.filter.EvaluatorFilter">
<evaluator>
<matcher>
<Name>encrypted</Name>
<!-- occurs during logging or relogging complications; the messages are useless -->
<regex>Unexpected packet type EncryptedPacket</regex>
</matcher>
<expression>encrypted.matches(formattedMessage)</expression>
</evaluator>
<OnMatch>DENY</OnMatch>
<OnMismatch>NEUTRAL</OnMismatch>
<filter class="net.psforever.filters.MsgRegexFilter">
<!-- occurs during logging or relogging complications; the messages are useless -->
<regex>Unexpected packet type EncryptedPacket</regex>
</filter>
</appender>

29
server/src/main/java/net/psforever/filters/MsgRegexFilter.java Normal file
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@ -0,0 +1,29 @@
package net.psforever.filters;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.filter.Filter;
import ch.qos.logback.core.spi.FilterReply;
/**
* Disrupts a variety of messages that, when formatted, match against the configured regular expression.
* A replacement for the `EvaluatorFilter`.
*/
public class MsgRegexFilter extends Filter<ILoggingEvent> {
private String regex;
@Override
public FilterReply decide(ILoggingEvent event) {
if (isStarted() && event.getFormattedMessage().matches(regex)) {
return FilterReply.DENY;
} else {
return FilterReply.NEUTRAL;
}
}
@Override
public void start() {
if (this.regex != null) {
super.start();
}
}
}