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     @Override
  38     public ExecutionStatus configure(LoggerContext lc) {
  39         final var rootLogger = lc.getLogger(Logger.ROOT_LOGGER_NAME);
  40
  41         final var defaultLevel = verboseLevel > 1 ? Level.ALL : verboseLevel > 0 ? Level.INFO : Level.WARN;
  42         rootLogger.setLevel(defaultLevel);
  43
  44         final var consoleLayout = verboseLevel == 0 || logFile != null
  45                 ? createSimpleLoggingLayout(lc)
  46                 : createDetailedLoggingLayout(lc);
  47         final var consoleAppender = createLoggingConsoleAppender(lc, createLayoutWrappingEncoder(consoleLayout));
  48         rootLogger.addAppender(consoleAppender);
  49
  50         lc.getLogger("org.asamk").setLevel(verboseLevel > 1 ? Level.ALL : verboseLevel > 0 ? Level.DEBUG : Level.INFO);
  51
  52         if (logFile != null) {
  53             consoleAppender.addFilter(new Filter<>() {
  54                 @Override
  55                 public FilterReply decide(final ILoggingEvent event) {
  56                     return !"LibSignal".equals(event.getLoggerName()) && (
  57                             event.getLevel().isGreaterOrEqual(Level.WARN) || (
  58                                     event.getLevel().isGreaterOrEqual(Level.INFO) && event.getLoggerName()
  59                                             .startsWith("org.asamk")
  60                             )
  61                     )
  62
  63                             ? FilterReply.NEUTRAL : FilterReply.DENY;
  64                 }
  65             });
  66
  67             final var fileLayout = createDetailedLoggingLayout(lc);
  68             final var fileAppender = createLoggingFileAppender(lc, createLayoutWrappingEncoder(fileLayout));
  69             rootLogger.addAppender(fileAppender);
  70         }
  71         return ExecutionStatus.DO_NOT_INVOKE_NEXT_IF_ANY;
  72     }
  73
  74     private ConsoleAppender<ILoggingEvent> createLoggingConsoleAppender(
  75             final LoggerContext lc, final LayoutWrappingEncoder<ILoggingEvent> layoutEncoder
  76     ) {
  77         return new ConsoleAppender<>() {{
  78             setContext(lc);
  79             setName("console");
  80             setTarget("System.err");
  81             setEncoder(layoutEncoder);
  82             start();
  83         }};
  84     }
  85
  86     private FileAppender<ILoggingEvent> createLoggingFileAppender(
  87             final LoggerContext lc, final LayoutWrappingEncoder<ILoggingEvent> layoutEncoder
  88     ) {
  89         return new FileAppender<>() {{
  90             setContext(lc);
  91             setName("file");
  92             setFile(logFile.getAbsolutePath());
  93             setEncoder(layoutEncoder);
  94             start();
  95         }};
  96     }
  97
  98     private LayoutWrappingEncoder<ILoggingEvent> createLayoutWrappingEncoder(final Layout<ILoggingEvent> l) {
  99         return new LayoutWrappingEncoder<>() {{
 100             setContext(l.getContext());
 101             setLayout(l);
 102         }};
 103     }
 104
 105     private PatternLayout createSimpleLoggingLayout(final LoggerContext lc) {
 106         final var patternLayout = getPatternLayout();
 107         patternLayout.setPattern("%-5level %logger{0} - %msg%n");
 108         patternLayout.setContext(lc);
 109         patternLayout.start();
 110         return patternLayout;
 111     }
 112
 113     private PatternLayout createDetailedLoggingLayout(final LoggerContext lc) {
 114         final var patternLayout = getPatternLayout();
 115         patternLayout.setPattern("%d{yyyy-MM-dd'T'HH:mm:ss.SSSXX} [%thread] %-5level %logger{36} - %msg%n");
 116         patternLayout.setContext(lc);
 117         patternLayout.start();
 118         return patternLayout;
 119     }
 120
 121     private PatternLayout getPatternLayout() {
 122         if (scrubSensitiveInformation) {
 123             return new ScrubberPatternLayout();
 124         } else {
 125             return new PatternLayout();
 126         }
 127     }
 128 }