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

   1 /*
   2   Copyright (C) 2015-2020 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.ArgumentParser;
  22 import net.sourceforge.argparse4j.inf.ArgumentParserException;
  23 import net.sourceforge.argparse4j.inf.MutuallyExclusiveGroup;
  24 import net.sourceforge.argparse4j.inf.Namespace;
  25 import net.sourceforge.argparse4j.inf.Subparser;
  26 import net.sourceforge.argparse4j.inf.Subparsers;
  27
  28 import org.asamk.Signal;
  29 import org.asamk.signal.commands.Command;
  30 import org.asamk.signal.commands.Commands;
  31 import org.asamk.signal.commands.DbusCommand;
  32 import org.asamk.signal.commands.ExtendedDbusCommand;
  33 import org.asamk.signal.commands.LocalCommand;
  34 import org.asamk.signal.manager.BaseConfig;
  35 import org.asamk.signal.manager.Manager;
  36 import org.asamk.signal.util.IOUtils;
  37 import org.asamk.signal.util.SecurityProvider;
  38 import org.bouncycastle.jce.provider.BouncyCastleProvider;
  39 import org.freedesktop.dbus.DBusConnection;
  40 import org.freedesktop.dbus.exceptions.DBusException;
  41 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
  42
  43 import java.io.File;
  44 import java.security.Security;
  45 import java.util.Map;
  46
  47 import static org.whispersystems.signalservice.internal.util.Util.isEmpty;
  48
  49 public class Main {
  50
  51     public static void main(String[] args) {
  52         installSecurityProviderWorkaround();
  53
  54         Namespace ns = parseArgs(args);
  55         if (ns == null) {
  56             System.exit(1);
  57         }
  58
  59         int res = handleCommands(ns);
  60         System.exit(res);
  61     }
  62
  63     public static void installSecurityProviderWorkaround() {
  64         // Register our own security provider
  65         Security.insertProviderAt(new SecurityProvider(), 1);
  66         Security.addProvider(new BouncyCastleProvider());
  67     }
  68
  69     private static int handleCommands(Namespace ns) {
  70         final String username = ns.getString("username");
  71         Manager m;
  72         Signal ts;
  73         DBusConnection dBusConn = null;
  74         try {
  75             if (ns.getBoolean("dbus") || ns.getBoolean("dbus_system")) {
  76                 try {
  77                     m = null;
  78                     int busType;
  79                     if (ns.getBoolean("dbus_system")) {
  80                         busType = DBusConnection.SYSTEM;
  81                     } else {
  82                         busType = DBusConnection.SESSION;
  83                     }
  84                     dBusConn = DBusConnection.getConnection(busType);
  85                     ts = dBusConn.getRemoteObject(
  86                             DbusConfig.SIGNAL_BUSNAME, DbusConfig.SIGNAL_OBJECTPATH,
  87                             Signal.class);
  88                 } catch (UnsatisfiedLinkError e) {
  89                     System.err.println("Missing native library dependency for dbus service: " + e.getMessage());
  90                     return 1;
  91                 } catch (DBusException e) {
  92                     e.printStackTrace();
  93                     if (dBusConn != null) {
  94                         dBusConn.disconnect();
  95                     }
  96                     return 3;
  97                 }
  98             } else {
  99                 String dataPath = ns.getString("config");
 100                 if (isEmpty(dataPath)) {
 101                     dataPath = getDefaultDataPath();
 102                 }
 103
 104                 m = new Manager(username, dataPath);
 105                 ts = m;
 106                 try {
 107                     m.init();
 108                 } catch (Exception e) {
 109                     System.err.println("Error loading state file: " + e.getMessage());
 110                     return 2;
 111                 }
 112             }
 113
 114             String commandKey = ns.getString("command");
 115             final Map<String, Command> commands = Commands.getCommands();
 116             if (commands.containsKey(commandKey)) {
 117                 Command command = commands.get(commandKey);
 118
 119                 if (dBusConn != null) {
 120                     if (command instanceof ExtendedDbusCommand) {
 121                         return ((ExtendedDbusCommand) command).handleCommand(ns, ts, dBusConn);
 122                     } else if (command instanceof DbusCommand) {
 123                         return ((DbusCommand) command).handleCommand(ns, ts);
 124                     } else {
 125                         System.err.println(commandKey + " is not yet implemented via dbus");
 126                         return 1;
 127                     }
 128                 } else {
 129                     if (command instanceof LocalCommand) {
 130                         return ((LocalCommand) command).handleCommand(ns, m);
 131                     } else if (command instanceof DbusCommand) {
 132                         return ((DbusCommand) command).handleCommand(ns, ts);
 133                     } else {
 134                         System.err.println(commandKey + " is only works via dbus");
 135                         return 1;
 136                     }
 137                 }
 138             }
 139             return 0;
 140         } finally {
 141             if (dBusConn != null) {
 142                 dBusConn.disconnect();
 143             }
 144         }
 145     }
 146
 147     /**
 148      * Uses $XDG_DATA_HOME/signal-cli if it exists, or if none of the legacy directories exist:
 149      * - $HOME/.config/signal
 150      * - $HOME/.config/textsecure
 151      *
 152      * @return the data directory to be used by signal-cli.
 153      */
 154     private static String getDefaultDataPath() {
 155         String dataPath = IOUtils.getDataHomeDir() + "/signal-cli";
 156         if (new File(dataPath).exists()) {
 157             return dataPath;
 158         }
 159
 160         String legacySettingsPath = System.getProperty("user.home") + "/.config/signal";
 161         if (new File(legacySettingsPath).exists()) {
 162             return legacySettingsPath;
 163         }
 164
 165         legacySettingsPath = System.getProperty("user.home") + "/.config/textsecure";
 166         if (new File(legacySettingsPath).exists()) {
 167             return legacySettingsPath;
 168         }
 169
 170         return dataPath;
 171     }
 172
 173     private static Namespace parseArgs(String[] args) {
 174         ArgumentParser parser = ArgumentParsers.newFor("signal-cli")
 175                 .build()
 176                 .defaultHelp(true)
 177                 .description("Commandline interface for Signal.")
 178                 .version(BaseConfig.PROJECT_NAME + " " + BaseConfig.PROJECT_VERSION);
 179
 180         parser.addArgument("-v", "--version")
 181                 .help("Show package version.")
 182                 .action(Arguments.version());
 183         parser.addArgument("--config")
 184                 .help("Set the path, where to store the config (Default: $XDG_DATA_HOME/signal-cli , $HOME/.local/share/signal-cli).");
 185
 186         MutuallyExclusiveGroup mut = parser.addMutuallyExclusiveGroup();
 187         mut.addArgument("-u", "--username")
 188                 .help("Specify your phone number, that will be used for verification.");
 189         mut.addArgument("--dbus")
 190                 .help("Make request via user dbus.")
 191                 .action(Arguments.storeTrue());
 192         mut.addArgument("--dbus-system")
 193                 .help("Make request via system dbus.")
 194                 .action(Arguments.storeTrue());
 195
 196         Subparsers subparsers = parser.addSubparsers()
 197                 .title("subcommands")
 198                 .dest("command")
 199                 .description("valid subcommands")
 200                 .help("additional help");
 201
 202         final Map<String, Command> commands = Commands.getCommands();
 203         for (Map.Entry<String, Command> entry : commands.entrySet()) {
 204             Subparser subparser = subparsers.addParser(entry.getKey());
 205             entry.getValue().attachToSubparser(subparser);
 206         }
 207
 208         Namespace ns;
 209         try {
 210             ns = parser.parseArgs(args);
 211         } catch (ArgumentParserException e) {
 212             parser.handleError(e);
 213             return null;
 214         }
 215
 216         if ("link".equals(ns.getString("command"))) {
 217             if (ns.getString("username") != null) {
 218                 parser.printUsage();
 219                 System.err.println("You cannot specify a username (phone number) when linking");
 220                 System.exit(2);
 221             }
 222         } else if (!ns.getBoolean("dbus") && !ns.getBoolean("dbus_system")) {
 223             if (ns.getString("username") == null) {
 224                 parser.printUsage();
 225                 System.err.println("You need to specify a username (phone number)");
 226                 System.exit(2);
 227             }
 228             if (!PhoneNumberFormatter.isValidNumber(ns.getString("username"), null)) {
 229                 System.err.println("Invalid username (phone number), make sure you include the country code.");
 230                 System.exit(2);
 231             }
 232         }
 233         if (ns.getList("recipient") != null && !ns.getList("recipient").isEmpty() && ns.getString("group") != null) {
 234             System.err.println("You cannot specify recipients by phone number and groups at the same time");
 235             System.exit(2);
 236         }
 237         return ns;
 238     }
 239 }