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 event.getLevel().isGreaterOrEqual(Level.WARN) || (
  56                             event.getLevel().isGreaterOrEqual(Level.INFO) && event.getLoggerName()
  57                                     .startsWith("org.asamk")
  58                     )
  59
  60                             ? FilterReply.NEUTRAL : FilterReply.DENY;
  61                 }
  62             });
  63
  64             final var fileLayout = createDetailedLoggingLayout(lc);
  65             final var fileAppender = createLoggingFileAppender(lc, createLayoutWrappingEncoder(fileLayout));
  66             rootLogger.addAppender(fileAppender);
  67         }
  68         return ExecutionStatus.DO_NOT_INVOKE_NEXT_IF_ANY;
  69     }
  70
  71     private ConsoleAppender<ILoggingEvent> createLoggingConsoleAppender(
  72             final LoggerContext lc, final LayoutWrappingEncoder<ILoggingEvent> layoutEncoder
  73     ) {
  74         return new ConsoleAppender<>() {{
  75             setContext(lc);
  76             setName("console");
  77             setTarget("System.err");
  78             setEncoder(layoutEncoder);
  79             start();
  80         }};
  81     }
  82
  83     private FileAppender<ILoggingEvent> createLoggingFileAppender(
  84             final LoggerContext lc, final LayoutWrappingEncoder<ILoggingEvent> layoutEncoder
  85     ) {
  86         return new FileAppender<>() {{
  87             setContext(lc);
  88             setName("file");
  89             setFile(logFile.getAbsolutePath());
  90             setEncoder(layoutEncoder);
  91             start();
  92         }};
  93     }
  94
  95     private LayoutWrappingEncoder<ILoggingEvent> createLayoutWrappingEncoder(final Layout<ILoggingEvent> l) {
  96         return new LayoutWrappingEncoder<>() {{
  97             setContext(l.getContext());
  98             setLayout(l);
  99         }};
 100     }
 101
 102     private PatternLayout createSimpleLoggingLayout(final LoggerContext lc) {
 103         final var patternLayout = getPatternLayout();
 104         patternLayout.setPattern("%-5level %logger{0} - %msg%n");
 105         patternLayout.setContext(lc);
 106         patternLayout.start();
 107         return patternLayout;
 108     }
 109
 110     private PatternLayout createDetailedLoggingLayout(final LoggerContext lc) {
 111         final var patternLayout = getPatternLayout();
 112         patternLayout.setPattern("%d{yyyy-MM-dd'T'HH:mm:ss.SSSXX} [%thread] %-5level %logger{36} - %msg%n");
 113         patternLayout.setContext(lc);
 114         patternLayout.start();
 115         return patternLayout;
 116     }
 117
 118     private PatternLayout getPatternLayout() {
 119         if (scrubSensitiveInformation) {
 120             return new ScrubberPatternLayout();
 121         } else {
 122             return new PatternLayout();
 123         }
 124     }
 125 }