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

   1 /*
   2   Copyright (C) 2015-2022 AsamK and contributors
   3
   4   This program is free software: you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation, either version 3 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal;
  18
  19 import net.sourceforge.argparse4j.ArgumentParsers;
  20 import net.sourceforge.argparse4j.DefaultSettings;
  21 import net.sourceforge.argparse4j.impl.Arguments;
  22 import net.sourceforge.argparse4j.inf.ArgumentParserException;
  23 import net.sourceforge.argparse4j.inf.Namespace;
  24
  25 import org.asamk.signal.commands.exceptions.CommandException;
  26 import org.asamk.signal.commands.exceptions.IOErrorException;
  27 import org.asamk.signal.commands.exceptions.UnexpectedErrorException;
  28 import org.asamk.signal.commands.exceptions.UntrustedKeyErrorException;
  29 import org.asamk.signal.commands.exceptions.UserErrorException;
  30 import org.asamk.signal.manager.ManagerLogger;
  31 import org.asamk.signal.util.SecurityProvider;
  32 import org.bouncycastle.jce.provider.BouncyCastleProvider;
  33 import org.slf4j.bridge.SLF4JBridgeHandler;
  34
  35 import java.io.File;
  36 import java.security.Security;
  37
  38 public class Main {
  39
  40     public static void main(String[] args) {
  41         // enable unlimited strength crypto via Policy, supported on relevant JREs
  42         Security.setProperty("crypto.policy", "unlimited");
  43         installSecurityProviderWorkaround();
  44
  45         // Configuring the logger needs to happen before any logger is initialized
  46
  47         final var nsLog = parseArgs(args);
  48         final var verboseLevel = nsLog == null ? 0 : nsLog.getInt("verbose");
  49         final var logFile = nsLog == null ? null : nsLog.<File>get("log-file");
  50         configureLogging(verboseLevel, logFile);
  51
  52         var parser = App.buildArgumentParser();
  53
  54         var ns = parser.parseArgsOrFail(args);
  55
  56         int status = 0;
  57         try {
  58             new App(ns).init();
  59         } catch (CommandException e) {
  60             System.err.println(e.getMessage());
  61             if (verboseLevel > 0 && e.getCause() != null) {
  62                 e.getCause().printStackTrace();
  63             }
  64             status = getStatusForError(e);
  65         } catch (Throwable e) {
  66             e.printStackTrace();
  67             status = 2;
  68         }
  69         System.exit(status);
  70     }
  71
  72     private static void installSecurityProviderWorkaround() {
  73         // Register our own security provider
  74         Security.insertProviderAt(new SecurityProvider(), 1);
  75         Security.addProvider(new BouncyCastleProvider());
  76     }
  77
  78     private static Namespace parseArgs(String[] args) {
  79         var parser = ArgumentParsers.newFor("signal-cli", DefaultSettings.VERSION_0_9_0_DEFAULT_SETTINGS)
  80                 .includeArgumentNamesAsKeysInResult(true)
  81                 .build()
  82                 .defaultHelp(false);
  83         parser.addArgument("--verbose").action(Arguments.count());
  84         parser.addArgument("--log-file").type(File.class);
  85
  86         try {
  87             return parser.parseKnownArgs(args, null);
  88         } catch (ArgumentParserException e) {
  89             return null;
  90         }
  91     }
  92
  93     private static void configureLogging(final int verboseLevel, final File logFile) {
  94         LogConfigurator.setVerboseLevel(verboseLevel);
  95         LogConfigurator.setLogFile(logFile);
  96
  97         if (verboseLevel > 0) {
  98             java.util.logging.Logger.getLogger("")
  99                     .setLevel(verboseLevel > 2 ? java.util.logging.Level.FINEST : java.util.logging.Level.INFO);
 100             ManagerLogger.initLogger();
 101         }
 102         SLF4JBridgeHandler.removeHandlersForRootLogger();
 103         SLF4JBridgeHandler.install();
 104     }
 105
 106     private static int getStatusForError(final CommandException e) {
 107         if (e instanceof UserErrorException) {
 108             return 1;
 109         } else if (e instanceof UnexpectedErrorException) {
 110             return 2;
 111         } else if (e instanceof IOErrorException) {
 112             return 3;
 113         } else if (e instanceof UntrustedKeyErrorException) {
 114             return 4;
 115         } else {
 116             return 2;
 117         }
 118     }
 119 }