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.impl.Arguments;
  21 import net.sourceforge.argparse4j.inf.ArgumentParserException;
  22 import net.sourceforge.argparse4j.inf.Namespace;
  23
  24 import org.asamk.signal.commands.exceptions.CommandException;
  25 import org.asamk.signal.commands.exceptions.IOErrorException;
  26 import org.asamk.signal.commands.exceptions.UnexpectedErrorException;
  27 import org.asamk.signal.commands.exceptions.UntrustedKeyErrorException;
  28 import org.asamk.signal.commands.exceptions.UserErrorException;
  29 import org.asamk.signal.manager.Manager;
  30 import org.asamk.signal.util.SecurityProvider;
  31 import org.bouncycastle.jce.provider.BouncyCastleProvider;
  32 import org.slf4j.bridge.SLF4JBridgeHandler;
  33
  34 import java.security.Security;
  35
  36 public class Main {
  37
  38     public static void main(String[] args) {
  39         // enable unlimited strength crypto via Policy, supported on relevant JREs
  40         Security.setProperty("crypto.policy", "unlimited");
  41         installSecurityProviderWorkaround();
  42
  43         // Configuring the logger needs to happen before any logger is initialized
  44         final var verboseLevel = getVerboseLevel(args);
  45         configureLogging(verboseLevel);
  46
  47         var parser = App.buildArgumentParser();
  48
  49         var ns = parser.parseArgsOrFail(args);
  50
  51         int status = 0;
  52         try {
  53             new App(ns).init();
  54         } catch (CommandException e) {
  55             System.err.println(e.getMessage());
  56             if (verboseLevel > 0 && e.getCause() != null) {
  57                 e.getCause().printStackTrace();
  58             }
  59             status = getStatusForError(e);
  60         } catch (Throwable e) {
  61             e.printStackTrace();
  62             status = 2;
  63         }
  64         System.exit(status);
  65     }
  66
  67     private static void installSecurityProviderWorkaround() {
  68         // Register our own security provider
  69         Security.insertProviderAt(new SecurityProvider(), 1);
  70         Security.addProvider(new BouncyCastleProvider());
  71     }
  72
  73     private static int getVerboseLevel(String[] args) {
  74         var parser = ArgumentParsers.newFor("signal-cli").build().defaultHelp(false);
  75         parser.addArgument("--verbose").action(Arguments.count());
  76
  77         Namespace ns;
  78         try {
  79             ns = parser.parseKnownArgs(args, null);
  80         } catch (ArgumentParserException e) {
  81             return 0;
  82         }
  83
  84         return ns.getInt("verbose");
  85     }
  86
  87     private static void configureLogging(final int verboseLevel) {
  88         final var defaultLogLevel = verboseLevel > 1 ? "trace" : verboseLevel > 0 ? "debug" : "info";
  89         System.setProperty("org.slf4j.simpleLogger.defaultLogLevel", defaultLogLevel);
  90         if (verboseLevel > 0) {
  91             System.setProperty("org.slf4j.simpleLogger.showThreadName", "true");
  92             System.setProperty("org.slf4j.simpleLogger.showShortLogName", "false");
  93             System.setProperty("org.slf4j.simpleLogger.showDateTime", "true");
  94             System.setProperty("org.slf4j.simpleLogger.dateTimeFormat", "yyyy-MM-dd'T'HH:mm:ss.SSSXX");
  95             java.util.logging.Logger.getLogger("")
  96                     .setLevel(verboseLevel > 2 ? java.util.logging.Level.FINEST : java.util.logging.Level.INFO);
  97             Manager.initLogger();
  98         } else {
  99             System.setProperty("org.slf4j.simpleLogger.showThreadName", "false");
 100             System.setProperty("org.slf4j.simpleLogger.showShortLogName", "true");
 101             System.setProperty("org.slf4j.simpleLogger.showDateTime", "false");
 102         }
 103         SLF4JBridgeHandler.removeHandlersForRootLogger();
 104         SLF4JBridgeHandler.install();
 105     }
 106
 107     private static int getStatusForError(final CommandException e) {
 108         if (e instanceof UserErrorException) {
 109             return 1;
 110         } else if (e instanceof UnexpectedErrorException) {
 111             return 2;
 112         } else if (e instanceof IOErrorException) {
 113             return 3;
 114         } else if (e instanceof UntrustedKeyErrorException) {
 115             return 4;
 116         } else {
 117             return 2;
 118         }
 119     }
 120 }