/* <!-- copyright */
/*
 * aria2 - The high speed download utility
 *
 * Copyright (C) 2006 Tatsuhiro Tsujikawa
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * In addition, as a special exception, the copyright holders give
 * permission to link the code of portions of this program with the
 * OpenSSL library under certain conditions as described in each
 * individual source file, and distribute linked combinations
 * including the two.
 * You must obey the GNU General Public License in all respects
 * for all of the code used other than OpenSSL.  If you modify
 * file(s) with this exception, you may extend this exception to your
 * version of the file(s), but you are not obligated to do so.  If you
 * do not wish to do so, delete this exception statement from your
 * version.  If you delete this exception statement from all source
 * files in the program, then also delete it here.
 */
/* copyright --> */
#include "common.h"
#include "FeatureConfig.h"
#include "messageDigest.h"

void showVersion() {
  cout << PACKAGE << _(" version ") << PACKAGE_VERSION << endl;
  cout << "**Configuration**" << endl;
  cout << FeatureConfig::getInstance()->getConfigurationSummary();
#ifdef ENABLE_MESSAGE_DIGEST
  cout << "message digest algorithms: " << MessageDigestContext::getSupportedAlgoString() << endl;
#endif // ENABLE_MESSAGE_DIGEST
  cout << endl;
  cout << "Copyright (C) 2006, 2007 Tatsuhiro Tsujikawa" << endl;
  cout << endl;
  cout <<
    _("This program is free software; you can redistribute it and/or modify\n"
      "it under the terms of the GNU General Public License as published by\n"
      "the Free Software Foundation; either version 2 of the License, or\n"
      "(at your option) any later version.\n"
      "\n"
      "This program is distributed in the hope that it will be useful,\n"
      "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
      "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
      "GNU General Public License for more details.\n"
      "\n"
      "You should have received a copy of the GNU General Public License\n"
      "along with this program; if not, write to the Free Software\n"
      "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA\n");
  cout << endl;
  cout << _("Contact Info:") << endl;
  cout << "Tatsuhiro Tsujikawa <tujikawa at users dot sourceforge dot net>" << endl;
  cout << endl;

}

void showUsage() {
  printf(_("Usage: %s [options] URL ...\n"), PACKAGE_NAME);
#ifdef ENABLE_BITTORRENT
  printf(_("       %s [options] -T TORRENT_FILE URL ...\n"), PACKAGE_NAME);
#endif // ENABLE_BITTORRENT
#ifdef ENABLE_METALINK
  printf(_("       %s [options] -M METALINK_FILE\n"), PACKAGE_NAME);
#endif // ENABLE_METALINK
  cout << endl;
  cout << _("Options:") << endl;
  cout << _(" -d, --dir=DIR                The directory to store the downloaded file.") << endl;
  cout << _(" -o, --out=FILE               The file name of the downloaded file.") << endl;
  cout << _(" -l, --log=LOG                The file name of the log file. If '-' is\n"
	    "                              specified, log is written to stdout.") << endl;
#ifdef HAVE_DAEMON
  cout << _(" -D, --daemon                 Run as daemon.") << endl;
#endif // HAVE_DAEMON
  cout << _(" -s, --split=N                Download a file using N connections. N must be\n"
	    "                              between 1 and 5. This option affects all URLs.\n"
	    "                              Thus, aria2 connects to each URL with\n"
	    "                              N connections.\n"
	    "                              Default: 1") << endl;
  cout << _(" --retry-wait=SEC             Set the seconds to wait to retry after an error\n"
	    "                              has occured. Specify a value between 0 and 60.\n"
	    "                              Default: 5") << endl;
  cout << _(" -t, --timeout=SEC            Set timeout in seconds. Default: 60") << endl;
  cout << _(" -m, --max-tries=N            Set number of tries. 0 means unlimited.\n"
	    "                              Default: 5") << endl;
  /*
  cout << _(" --min-segment-size=SIZE[K|M] Set minimum segment size. You can append\n"
	    "                              K or M(1K = 1024, 1M = 1024K). This\n"
	    "                              value must be greater than or equal to\n"
	    "                              1024. Default: 1M") << endl;
  */
  cout << _(" --http-proxy=HOST:PORT       Use HTTP proxy server. This affects all URLs.") << endl;
  cout << _(" --http-user=USER             Set HTTP user. This affects all URLs.") << endl;
  cout << _(" --http-passwd=PASSWD         Set HTTP password. This affects all URLs.") << endl;
  cout << _(" --http-proxy-user=USER       Set HTTP proxy user. This affects all URLs.") << endl;
  cout << _(" --http-proxy-passwd=PASSWD   Set HTTP proxy password. This affects all URLs.") << endl;
  cout << _(" --http-proxy-method=METHOD   Set the method to use in proxy request.\n"
	    "                              METHOD is either 'get' or 'tunnel'.\n"
	    "                              Default: tunnel") << endl;
  cout << _(" --http-auth-scheme=SCHEME    Set HTTP authentication scheme. Currently, basic\n"
	    "                              is the only supported scheme.\n"
	    "                              Default: basic") << endl;
  cout << _(" --referer=REFERER            Set Referer. This affects all URLs.") << endl;
  cout << _(" --ftp-user=USER              Set FTP user. This affects all URLs.\n"
	    "                              Default: anonymous") << endl;
  cout << _(" --ftp-passwd=PASSWD          Set FTP password. This affects all URLs.\n"
	    "                              Default: ARIA2USER@") << endl;
  cout << _(" --ftp-type=TYPE              Set FTP transfer type. TYPE is either 'binary'\n"
	    "                              or 'ascii'.\n"
	    "                              Default: binary") << endl;
  cout << _(" -p, --ftp-pasv               Use passive mode in FTP.") << endl;
  cout << _(" --ftp-via-http-proxy=METHOD  Use HTTP proxy in FTP. METHOD is either 'get' or\n"
	    "                              'tunnel'.\n"
	    "                              Default: tunnel") << endl;
  cout << _(" --lowest-speed-limit=SPEED   Close connection if download speed is lower than\n"
	    "                              or equal to this value(bytes per sec).\n"
	    "                              0 means aria2 does not have a lowest speed limit.\n"
	    "                              You can append K or M(1K = 1024, 1M = 1024K).\n"

	    "                              This option does not affect BitTorrent downloads.\n"
	    "                              Default: 0") << endl;
  cout << _(" --max-download-limit=SPEED   Set max download speed in bytes per sec.\n"
	    "                              0 means unrestricted.\n"
	    "                              You can append K or M(1K = 1024, 1M = 1024K).\n"
	    "                              Default: 0") << endl;
  cout << _(" --file-allocation=METHOD     Specify file allocation method. METHOD is either\n"
	    "                              'none' or 'prealloc'. 'none' doesn't pre-allocate\n"
	    "                              file space. 'prealloc' pre-allocates file space\n"
	    "                              before download begins. This may take some time\n"
	    "                              depending on the size of the file.\n"
	    "                              Default: none") << endl;
  cout << _(" --allow-overwrite=true|false If false, aria2 doesn't download a file which\n"
  		"                              already exists but the corresponding .aria2 file\n"
  		"                              doesn't exist.\n"
            "                              Default: false") << endl;
  cout << _(" -Z, --force-sequential[=true|false] Fetch URIs in the command-line sequentially\n"
	    "                              and download each URI in a separate session, like\n"
	    "                              the usual command-line download utilities.\n"
	    "                              Default: false") << endl;
  cout << _(" --auto-file-renaming[=true|false] Rename file name if the same file already\n"
	    "                              exists. This option works only in http(s)/ftp\n"
	    "                              download.\n"
	    "                              The new file name has a dot and a number(1..9999)\n"
	    "                              appended.\n"
	    "                              Default: true") << endl;
  cout << _(" -P, --parameterized-uri[=true|false] Enable parameterized URI support.\n"
	    "                              You can specify set of parts:\n"
	    "                              http://{sv1,sv2,sv3}/foo.iso\n"
	    "                              Also you can specify numeric sequences with step\n"
	    "                              counter:\n"
	    "                              http://host/image[000-100:2].img\n"
	    "                              A step counter can be omitted.\n"
	    "                              If all URIs do not point to the same file, such\n"
	    "                              as the second example above, -Z option is\n"
	    "                              required.\n"
	    "                              Default: false") << endl;
  cout << _(" --enable-http-keep-alive[=true|false] Enable HTTP/1.1 persistant connection.\n"
	    "                              Default: false") << endl;
  cout << _(" --enable-http-pipelining[=true|false] Enable HTTP/1.1 pipelining.\n"
	    "                              Default: false") << endl;
#ifdef ENABLE_MESSAGE_DIGEST
  cout << _(" --check-integrity=true|false  Check file integrity by validating piece hash.\n"
	    "                              This option only affects in BitTorrent downloads\n"
	    "                              and Metalink downloads with chunk checksums.\n"
	    "                              Use this option to re-download a damaged portion\n"
	    "                              of a file.\n"
	    "                              You may need to specify --allow-overwrite=true\n"
	    "                              if the .aria2 file doesn't exist.\n"
	    "                              Default: false") << endl;
  cout << _(" --realtime-chunk-checksum=true|false  Validate chunk checksum while\n"
	    "                              downloading a file in Metalink mode. This option\n"
	    "                              on affects Metalink mode with chunk checksums.\n"
	    "                              Default: true") << endl;
#endif // ENABLE_MESSAGE_DIGEST
  cout << _(" -c, --continue               Continue downloading a partially downloaded\n"
	    "                              file. Use this option to resume a download\n"
	    "                              started by a web browser or another program\n"
	    "                              which downloads files sequentially from the\n"
	    "                              beginning. Currently this option is only\n"
	    "                              applicable to http(s)/ftp downloads.") << endl;
  cout << _(" -U, --user-agent=USER_AGENT  Set user agent for http(s) downloads.") << endl;
  cout << _(" -n, --no-netrc               Disables netrc support.") << endl;
  cout << _(" -i, --input-file=FILE        Downloads URIs found in FILE. You can specify\n"
	    "                              multiple URIs for a single entity: separate\n"
	    "                              URIs on a single line using the TAB character.\n"
	    "                              Reads input from stdin when '-' is specified.") << endl;
  cout << _(" -j, --max-concurrent-downloads=N Set maximum number of concurrent downloads.\n"
	    "                              It should be used with the -i option.\n"
	    "                              Default: 5") << endl;
  cout << _(" --load-cookies=FILE          Load cookies from FILE. The format of FILE is\n"
	    "                              the same used by Netscape and Mozilla.") << endl;
#if defined ENABLE_BITTORRENT || ENABLE_METALINK
  cout << _(" -S, --show-files             Print file listing of .torrent or .metalink file\n"
	    "                              and exit.") << endl;
  cout << _(" --select-file=INDEX...       Set file to download by specifing its index.\n"
	    "                              You can find the file index using the\n"
	    "                              --show-files option. Multiple indexes can be\n"
	    "                              specified by using ',', for example: \"3,6\".\n"
	    "                              You can also use '-' to specify a range: \"1-5\".\n"
	    "                              ',' and '-' can be used together.\n"
	    "                              When used with the -M option, index may vary\n"
	    "                              depending on the query(see --metalink-* options).") << endl;
#endif // ENABLE_BITTORRENT || ENABLE_METALINK
#ifdef ENABLE_BITTORRENT
  cout << _(" -T, --torrent-file=TORRENT_FILE  The path to the .torrent file.") << endl;
  cout << _(" --follow-torrent=true|false  Set to false to prevent aria2 from\n"
	    "                              entering BitTorrent mode even if the filename of\n"
	    "                              the downloaded file ends with .torrent.\n"
	    "                              Default: true") << endl;
  cout << _(" --direct-file-mapping=true|false Directly read from and write to each file\n"
	    "                              mentioned in .torrent file.\n"
	    "                              Default: true") << endl;
  cout << _(" --listen-port=PORT           Set TCP port number for BitTorrent downloads.\n"
	    "                              Default: 6881-6999") << endl;
  cout << _(" --max-upload-limit=SPEED     Set max upload speed in bytes per sec.\n"
	    "                              0 means unrestricted.\n"
	    "                              You can append K or M(1K = 1024, 1M = 1024K).\n"
	    "                              Default: 0") << endl;
  cout << _(" --seed-time=MINUTES          Specify seeding time in minutes. Also see the\n"
	    "                              --seed-ratio option.") << endl;
  cout << _(" --seed-ratio=RATIO           Specify share ratio. Seed completed torrents\n"
	    "                              until share ratio reaches RATIO. 1.0 is\n"
	    "                              encouraged. If --seed-time option is specified\n"
	    "                              along with this option, seeding ends when at\n"
	    "                              least one of the conditions is satisfied.") << endl;
  cout << _(" --peer-id-prefix=PEERI_ID_PREFIX Specify the prefix of peer ID. The peer ID in\n"
	    "                              in BitTorrent is 20 byte length. If more than 20\n"
	    "                              bytes are specified, only first 20\n"
	    "                              bytes are used. If less than 20 bytes are\n"
	    "                              specified, the random alphabet characters are\n"
	    "                              added to make it's length 20 bytes.\n"
	    "                              Default: -aria2-") << endl;
#endif // ENABLE_BITTORRENT
#ifdef ENABLE_METALINK
  cout << _(" -M, --metalink-file=METALINK_FILE The file path to the .metalink file.") << endl;
  cout << _(" -C, --metalink-servers=NUM_SERVERS The number of servers to connect to\n"
	    "                              simultaneously.\n"
	    "                              Default: 5") << endl;
  cout << _(" --metalink-version=VERSION   The version of the file to download.") << endl;
  cout << _(" --metalink-language=LANGUAGE The language of the file to download.") << endl;
  cout << _(" --metalink-os=OS             The operating system of the file to download.") << endl;
  cout << _(" --metalink-location=LOCATION The location of the prefered server.") << endl;
  cout << _(" --follow-metalink=true|false Set to false to prevent aria2 from\n"
	    "                              entering Metalink mode even if the filename of\n"
	    "                              the downloaded file ends with .metalink.\n"
	    "                              Default: true") << endl;
#endif // ENABLE_METALINK
  cout << _(" -v, --version                Print the version number and exit.") << endl;
  cout << _(" -h, --help                   Print this message and exit.") << endl;
  cout << endl;
  cout << "URL:" << endl;
  cout << _(" You can specify multiple URLs. All URLs must point to the same file\n"
	    " or downloading will fail.") << endl;
  cout << endl;
  cout << _("Examples:") << endl;
  cout << _(" Download a file using 1 connection:") << endl;
  cout << "  aria2c http://AAA.BBB.CCC/file.zip" << endl;
  cout << _(" Download a file using 2 connections:") << endl;
  cout << "  aria2c -s 2 http://AAA.BBB.CCC/file.zip" << endl;
  cout << _(" Download a file using 2 connections, each connects to a different server:") << endl;
  cout << "  aria2c http://AAA.BBB.CCC/file.zip http://DDD.EEE.FFF/GGG/file.zip" << endl;
  cout << _(" You can mix up different protocols:") << endl;
  cout << "  aria2c http://AAA.BBB.CCC/file.zip ftp://DDD.EEE.FFF/GGG/file.zip" << endl;
  cout << _(" Parameterized URI:") << endl;
  cout << "  aria2c -P http://{server1,server2,server3}/file.iso" << endl;
  cout << _(" Parameterized URI. -Z option is required in this case:") << endl;
  cout << "  aria2c -P -Z http://host/file[001-100:2].img" << endl;
#ifdef ENABLE_BITTORRENT
  cout << endl;
  cout << _(" Download a torrent:") << endl;
  cout << "  aria2c -o test.torrent http://AAA.BBB.CCC/file.torrent" << endl;
  cout << _(" Download a torrent using a local .torrent file:") << endl;
  cout << "  aria2c -T test.torrent" << endl;
  cout << _(" Download only selected files:") << endl;
  cout << "  aria2c -T test.torrent dir/file1.zip dir/file2.zip" << endl;
  cout << _(" Print file listing of .torrent file:") << endl;
  cout << "  aria2c -T test.torrent -S" << endl;  
#endif // ENABLE_BITTORRENT
#ifdef ENABLE_METALINK
  cout << endl;
  cout << _(" Metalink downloading:") << endl;
  cout << "  aria2c http://AAA.BBB.CCC/file.metalink" << endl;
  cout << _(" Download a file using local .metalink file:") << endl;
  cout << "  aria2c -M test.metalink" << endl;
  cout << _(" Metalink downloading with preferences:") << endl;
  cout << "  aria2c -M test.metalink --metalink-version=1.1.1 --metalink-language=en-US" << endl;
  cout << _(" Download only selected files:") << endl;
  cout << "  aria2c -M test.metalink --metalink-language=en-US dir/file1.zip dir/file2.zip" << endl;
  cout << _(" Download only selected files using index:") << endl;
  cout << "  aria2c -M test.metalink --metalink-language=en-US --select-file 1,3-5" << endl;
  cout << _(" Print file listing of .metalink file:") << endl;
  cout << "  aria2c -M test.metalink -S --metalink-language=en-US" << endl;
#endif // ENABLE_METALINK
  cout << endl;
  printf(_("Report bugs to %s"), "<tujikawa at users dot sourceforge dot net>");
  cout << endl;
}