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.connections.impl.DBusConnection;
  40 import org.freedesktop.dbus.exceptions.DBusException;
  41 import org.whispersystems.signalservice.api.push.exceptions.AuthorizationFailedException;
  42 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
  43
  44 import java.io.File;
  45 import java.security.Security;
  46 import java.util.Map;
  47
  48 import static org.whispersystems.signalservice.internal.util.Util.isEmpty;
  49
  50 public class Main {
  51
  52     public static void main(String[] args) {
  53         installSecurityProviderWorkaround();
  54
  55         Namespace ns = parseArgs(args);
  56         if (ns == null) {
  57             System.exit(1);
  58         }
  59
  60         int res = handleCommands(ns);
  61         System.exit(res);
  62     }
  63
  64     public static void installSecurityProviderWorkaround() {
  65         // Register our own security provider
  66         Security.insertProviderAt(new SecurityProvider(), 1);
  67         Security.addProvider(new BouncyCastleProvider());
  68     }
  69
  70     private static int handleCommands(Namespace ns) {
  71         final String username = ns.getString("username");
  72         Manager m;
  73         Signal ts;
  74         DBusConnection dBusConn = null;
  75         try {
  76             if (ns.getBoolean("dbus") || ns.getBoolean("dbus_system")) {
  77                 try {
  78                     m = null;
  79                     DBusConnection.DBusBusType busType;
  80                     if (ns.getBoolean("dbus_system")) {
  81                         busType = DBusConnection.DBusBusType.SYSTEM;
  82                     } else {
  83                         busType = DBusConnection.DBusBusType.SESSION;
  84                     }
  85                     dBusConn = DBusConnection.getConnection(busType);
  86                     ts = dBusConn.getRemoteObject(
  87                             DbusConfig.SIGNAL_BUSNAME, DbusConfig.SIGNAL_OBJECTPATH,
  88                             Signal.class);
  89                 } catch (UnsatisfiedLinkError e) {
  90                     System.err.println("Missing native library dependency for dbus service: " + e.getMessage());
  91                     return 1;
  92                 } catch (DBusException e) {
  93                     e.printStackTrace();
  94                     if (dBusConn != null) {
  95                         dBusConn.disconnect();
  96                     }
  97                     return 3;
  98                 }
  99             } else {
 100                 String dataPath = ns.getString("config");
 101                 if (isEmpty(dataPath)) {
 102                     dataPath = getDefaultDataPath();
 103                 }
 104
 105                 m = new Manager(username, dataPath);
 106                 ts = m;
 107                 try {
 108                     m.init();
 109                 } catch (AuthorizationFailedException e) {
 110                     if (!"register".equals(ns.getString("command"))) {
 111                         // Register command should still be possible, if current authorization fails
 112                         System.err.println("Authorization failed, was the number registered elsewhere?");
 113                         return 2;
 114                     }
 115                 } catch (Exception e) {
 116                     System.err.println("Error loading state file: " + e.getMessage());
 117                     return 2;
 118                 }
 119             }
 120
 121             String commandKey = ns.getString("command");
 122             final Map<String, Command> commands = Commands.getCommands();
 123             if (commands.containsKey(commandKey)) {
 124                 Command command = commands.get(commandKey);
 125
 126                 if (dBusConn != null) {
 127                     if (command instanceof ExtendedDbusCommand) {
 128                         return ((ExtendedDbusCommand) command).handleCommand(ns, ts, dBusConn);
 129                     } else if (command instanceof DbusCommand) {
 130                         return ((DbusCommand) command).handleCommand(ns, ts);
 131                     } else {
 132                         System.err.println(commandKey + " is not yet implemented via dbus");
 133                         return 1;
 134                     }
 135                 } else {
 136                     if (command instanceof LocalCommand) {
 137                         return ((LocalCommand) command).handleCommand(ns, m);
 138                     } else if (command instanceof DbusCommand) {
 139                         return ((DbusCommand) command).handleCommand(ns, ts);
 140                     } else {
 141                         System.err.println(commandKey + " is only works via dbus");
 142                         return 1;
 143                     }
 144                 }
 145             }
 146             return 0;
 147         } finally {
 148             if (dBusConn != null) {
 149                 dBusConn.disconnect();
 150             }
 151         }
 152     }
 153
 154     /**
 155      * Uses $XDG_DATA_HOME/signal-cli if it exists, or if none of the legacy directories exist:
 156      * - $HOME/.config/signal
 157      * - $HOME/.config/textsecure
 158      *
 159      * @return the data directory to be used by signal-cli.
 160      */
 161     private static String getDefaultDataPath() {
 162         String dataPath = IOUtils.getDataHomeDir() + "/signal-cli";
 163         if (new File(dataPath).exists()) {
 164             return dataPath;
 165         }
 166
 167         String legacySettingsPath = System.getProperty("user.home") + "/.config/signal";
 168         if (new File(legacySettingsPath).exists()) {
 169             return legacySettingsPath;
 170         }
 171
 172         legacySettingsPath = System.getProperty("user.home") + "/.config/textsecure";
 173         if (new File(legacySettingsPath).exists()) {
 174             return legacySettingsPath;
 175         }
 176
 177         return dataPath;
 178     }
 179
 180     private static Namespace parseArgs(String[] args) {
 181         ArgumentParser parser = ArgumentParsers.newFor("signal-cli")
 182                 .build()
 183                 .defaultHelp(true)
 184                 .description("Commandline interface for Signal.")
 185                 .version(BaseConfig.PROJECT_NAME + " " + BaseConfig.PROJECT_VERSION);
 186
 187         parser.addArgument("-v", "--version")
 188                 .help("Show package version.")
 189                 .action(Arguments.version());
 190         parser.addArgument("--config")
 191                 .help("Set the path, where to store the config (Default: $XDG_DATA_HOME/signal-cli , $HOME/.local/share/signal-cli).");
 192
 193         MutuallyExclusiveGroup mut = parser.addMutuallyExclusiveGroup();
 194         mut.addArgument("-u", "--username")
 195                 .help("Specify your phone number, that will be used for verification.");
 196         mut.addArgument("--dbus")
 197                 .help("Make request via user dbus.")
 198                 .action(Arguments.storeTrue());
 199         mut.addArgument("--dbus-system")
 200                 .help("Make request via system dbus.")
 201                 .action(Arguments.storeTrue());
 202
 203         Subparsers subparsers = parser.addSubparsers()
 204                 .title("subcommands")
 205                 .dest("command")
 206                 .description("valid subcommands")
 207                 .help("additional help");
 208
 209         final Map<String, Command> commands = Commands.getCommands();
 210         for (Map.Entry<String, Command> entry : commands.entrySet()) {
 211             Subparser subparser = subparsers.addParser(entry.getKey());
 212             entry.getValue().attachToSubparser(subparser);
 213         }
 214
 215         Namespace ns;
 216         try {
 217             ns = parser.parseArgs(args);
 218         } catch (ArgumentParserException e) {
 219             parser.handleError(e);
 220             return null;
 221         }
 222
 223         if ("link".equals(ns.getString("command"))) {
 224             if (ns.getString("username") != null) {
 225                 parser.printUsage();
 226                 System.err.println("You cannot specify a username (phone number) when linking");
 227                 System.exit(2);
 228             }
 229         } else if (!ns.getBoolean("dbus") && !ns.getBoolean("dbus_system")) {
 230             if (ns.getString("username") == null) {
 231                 parser.printUsage();
 232                 System.err.println("You need to specify a username (phone number)");
 233                 System.exit(2);
 234             }
 235             if (!PhoneNumberFormatter.isValidNumber(ns.getString("username"), null)) {
 236                 System.err.println("Invalid username (phone number), make sure you include the country code.");
 237                 System.exit(2);
 238             }
 239         }
 240         if (ns.getList("recipient") != null && !ns.getList("recipient").isEmpty() && ns.getString("group") != null) {
 241             System.err.println("You cannot specify recipients by phone number and groups at the same time");
 242             System.exit(2);
 243         }
 244         return ns;
 245     }
 246 }