nmode's Git Repositories - signal-cli/blob - src/main/java/org/asamk/signal/logging/LogConfigurator.java

   1 package org.asamk.signal.logging;
   2
   3 import java.io.File;
   4
   5 import ch.qos.logback.classic.Level;
   6 import ch.qos.logback.classic.Logger;
   7 import ch.qos.logback.classic.LoggerContext;
   8 import ch.qos.logback.classic.PatternLayout;
   9 import ch.qos.logback.classic.spi.Configurator;
  10 import ch.qos.logback.classic.spi.ILoggingEvent;
  11 import ch.qos.logback.core.ConsoleAppender;
  12 import ch.qos.logback.core.FileAppender;
  13 import ch.qos.logback.core.Layout;
  14 import ch.qos.logback.core.encoder.LayoutWrappingEncoder;
  15 import ch.qos.logback.core.filter.Filter;
  16 import ch.qos.logback.core.spi.ContextAwareBase;
  17 import ch.qos.logback.core.spi.FilterReply;
  18
  19 public class LogConfigurator extends ContextAwareBase implements Configurator {
  20
  21     private static int verboseLevel = 0;
  22     private static File logFile = null;
  23     private static boolean scrubSensitiveInformation = false;
  24
  25     public static void setVerboseLevel(int verboseLevel) {
  26         LogConfigurator.verboseLevel = verboseLevel;
  27     }
  28
  29     public static void setLogFile(File logFile) {
  30         LogConfigurator.logFile = logFile;
  31     }
  32
  33     public static void setScrubSensitiveInformation(final boolean scrubSensitiveInformation) {
  34         LogConfigurator.scrubSensitiveInformation = scrubSensitiveInformation;
  35     }
  36
  37     public ExecutionStatus configure(LoggerContext lc) {
  38         final var rootLogger = lc.getLogger(Logger.ROOT_LOGGER_NAME);
  39
  40         final var defaultLevel = verboseLevel > 1 ? Level.ALL : verboseLevel > 0 ? Level.INFO : Level.WARN;
  41         rootLogger.setLevel(defaultLevel);
  42
  43         final var consoleLayout = verboseLevel == 0 || logFile != null
  44                 ? createSimpleLoggingLayout(lc)
  45                 : createDetailedLoggingLayout(lc);
  46         final var consoleAppender = createLoggingConsoleAppender(lc, createLayoutWrappingEncoder(consoleLayout));
  47         rootLogger.addAppender(consoleAppender);
  48
  49         lc.getLogger("org.asamk").setLevel(verboseLevel > 1 ? Level.ALL : verboseLevel > 0 ? Level.DEBUG : Level.INFO);
  50
  51         if (logFile != null) {
  52             consoleAppender.addFilter(new Filter<>() {
  53                 @Override
  54                 public FilterReply decide(final ILoggingEvent event) {
  55                     return !"LibSignal".equals(event.getLoggerName()) && (
  56                             event.getLevel().isGreaterOrEqual(Level.WARN) || (
  57                                     event.getLevel().isGreaterOrEqual(Level.INFO) && event.getLoggerName()
  58                                             .startsWith("org.asamk")
  59                             )
  60                     )
  61
  62                             ? FilterReply.NEUTRAL : FilterReply.DENY;
  63                 }
  64             });
  65
  66             final var fileLayout = createDetailedLoggingLayout(lc);
  67             final var fileAppender = createLoggingFileAppender(lc, createLayoutWrappingEncoder(fileLayout));
  68             rootLogger.addAppender(fileAppender);
  69         }
  70         return ExecutionStatus.DO_NOT_INVOKE_NEXT_IF_ANY;
  71     }
  72
  73     private ConsoleAppender<ILoggingEvent> createLoggingConsoleAppender(
  74             final LoggerContext lc, final LayoutWrappingEncoder<ILoggingEvent> layoutEncoder
  75     ) {
  76         return new ConsoleAppender<>() {{
  77             setContext(lc);
  78             setName("console");
  79             setTarget("System.err");
  80             setEncoder(layoutEncoder);
  81             start();
  82         }};
  83     }
  84
  85     private FileAppender<ILoggingEvent> createLoggingFileAppender(
  86             final LoggerContext lc, final LayoutWrappingEncoder<ILoggingEvent> layoutEncoder
  87     ) {
  88         return new FileAppender<>() {{
  89             setContext(lc);
  90             setName("file");
  91             setFile(logFile.getAbsolutePath());
  92             setEncoder(layoutEncoder);
  93             start();
  94         }};
  95     }
  96
  97     private LayoutWrappingEncoder<ILoggingEvent> createLayoutWrappingEncoder(final Layout<ILoggingEvent> l) {
  98         return new LayoutWrappingEncoder<>() {{
  99             setContext(l.getContext());
 100             setLayout(l);
 101         }};
 102     }
 103
 104     private PatternLayout createSimpleLoggingLayout(final LoggerContext lc) {
 105         final var patternLayout = getPatternLayout();
 106         patternLayout.setPattern("%-5level %logger{0} - %msg%n");
 107         patternLayout.setContext(lc);
 108         patternLayout.start();
 109         return patternLayout;
 110     }
 111
 112     private PatternLayout createDetailedLoggingLayout(final LoggerContext lc) {
 113         final var patternLayout = getPatternLayout();
 114         patternLayout.setPattern("%d{yyyy-MM-dd'T'HH:mm:ss.SSSXX} [%thread] %-5level %logger{36} - %msg%n");
 115         patternLayout.setContext(lc);
 116         patternLayout.start();
 117         return patternLayout;
 118     }
 119
 120     private PatternLayout getPatternLayout() {
 121         if (scrubSensitiveInformation) {
 122             return new ScrubberPatternLayout();
 123         } else {
 124             return new PatternLayout();
 125         }
 126     }
 127 }