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transmission/cli/cli.c

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/******************************************************************************
* $Id$
*
* Copyright (c) Transmission authors and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*****************************************************************************/
#include <stdio.h> /* fprintf () */
#include <stdlib.h> /* atoi () */
#include <string.h> /* memcmp () */
#include <signal.h>
#include <libtransmission/transmission.h>
#include <libtransmission/tr-getopt.h>
#include <libtransmission/utils.h> /* tr_wait_msec */
#include <libtransmission/variant.h>
#include <libtransmission/version.h>
#include <libtransmission/web.h> /* tr_webRun */
/***
****
***/
#define MEM_K 1024
#define MEM_K_STR "KiB"
#define MEM_M_STR "MiB"
#define MEM_G_STR "GiB"
#define MEM_T_STR "TiB"
#define DISK_K 1000
#define DISK_B_STR "B"
#define DISK_K_STR "kB"
#define DISK_M_STR "MB"
#define DISK_G_STR "GB"
#define DISK_T_STR "TB"
#define SPEED_K 1000
#define SPEED_B_STR "B/s"
#define SPEED_K_STR "kB/s"
#define SPEED_M_STR "MB/s"
#define SPEED_G_STR "GB/s"
#define SPEED_T_STR "TB/s"
/***
****
***/
#define LINEWIDTH 80
#define MY_CONFIG_NAME "transmission"
#define MY_READABLE_NAME "transmission-cli"
static bool showVersion = false;
static bool verify = false;
static sig_atomic_t gotsig = false;
static sig_atomic_t manualUpdate = false;
static const char * torrentPath = NULL;
static const struct tr_option options[] =
{
{ 'b', "blocklist", "Enable peer blocklists", "b", 0, NULL },
{ 'B', "no-blocklist", "Disable peer blocklists", "B", 0, NULL },
{ 'd', "downlimit", "Set max download speed in "SPEED_K_STR, "d", 1, "<speed>" },
{ 'D', "no-downlimit", "Don't limit the download speed", "D", 0, NULL },
{ 910, "encryption-required", "Encrypt all peer connections", "er", 0, NULL },
{ 911, "encryption-preferred", "Prefer encrypted peer connections", "ep", 0, NULL },
{ 912, "encryption-tolerated", "Prefer unencrypted peer connections", "et", 0, NULL },
{ 'f', "finish", "Run a script when the torrent finishes", "f", 1, "<script>" },
{ 'g', "config-dir", "Where to find configuration files", "g", 1, "<path>" },
{ 'm', "portmap", "Enable portmapping via NAT-PMP or UPnP", "m", 0, NULL },
{ 'M', "no-portmap", "Disable portmapping", "M", 0, NULL },
{ 'p', "port", "Port for incoming peers (Default: " TR_DEFAULT_PEER_PORT_STR ")", "p", 1, "<port>" },
{ 't', "tos", "Peer socket TOS (0 to 255, default=" TR_DEFAULT_PEER_SOCKET_TOS_STR ")", "t", 1, "<tos>" },
{ 'u', "uplimit", "Set max upload speed in "SPEED_K_STR, "u", 1, "<speed>" },
{ 'U', "no-uplimit", "Don't limit the upload speed", "U", 0, NULL },
{ 'v', "verify", "Verify the specified torrent", "v", 0, NULL },
{ 'V', "version", "Show version number and exit", "V", 0, NULL },
{ 'w', "download-dir", "Where to save downloaded data", "w", 1, "<path>" },
{ 0, NULL, NULL, NULL, 0, NULL }
};
static const char *
getUsage (void)
{
return "A fast and easy BitTorrent client\n"
"\n"
"Usage: " MY_READABLE_NAME " [options] <file|url|magnet>";
}
static int parseCommandLine (tr_variant*, int argc, const char ** argv);
static void sigHandler (int signal);
static char*
tr_strlratio (char * buf, double ratio, size_t buflen)
{
if ((int)ratio == TR_RATIO_NA)
tr_strlcpy (buf, _ ("None"), buflen);
else if ((int)ratio == TR_RATIO_INF)
tr_strlcpy (buf, "Inf", buflen);
else if (ratio < 10.0)
tr_snprintf (buf, buflen, "%.2f", ratio);
else if (ratio < 100.0)
tr_snprintf (buf, buflen, "%.1f", ratio);
else
tr_snprintf (buf, buflen, "%.0f", ratio);
return buf;
}
static bool waitingOnWeb;
static void
onTorrentFileDownloaded (tr_session * session UNUSED,
bool did_connect UNUSED,
bool did_timeout UNUSED,
long response_code UNUSED,
const void * response,
size_t response_byte_count,
void * ctor)
{
tr_ctorSetMetainfo (ctor, response, response_byte_count);
waitingOnWeb = false;
}
static void
getStatusStr (const tr_stat * st,
char * buf,
size_t buflen)
{
if (st->activity == TR_STATUS_CHECK_WAIT)
{
tr_snprintf (buf, buflen, "Waiting to verify local files");
}
else if (st->activity == TR_STATUS_CHECK)
{
tr_snprintf (buf, buflen,
"Verifying local files (%.2f%%, %.2f%% valid)",
tr_truncd (100 * st->recheckProgress, 2),
tr_truncd (100 * st->percentDone, 2));
}
else if (st->activity == TR_STATUS_DOWNLOAD)
{
char upStr[80];
char dnStr[80];
char ratioStr[80];
tr_formatter_speed_KBps (upStr, st->pieceUploadSpeed_KBps, sizeof (upStr));
tr_formatter_speed_KBps (dnStr, st->pieceDownloadSpeed_KBps, sizeof (dnStr));
tr_strlratio (ratioStr, st->ratio, sizeof (ratioStr));
tr_snprintf (buf, buflen,
"Progress: %.1f%%, "
"dl from %d of %d peers (%s), "
"ul to %d (%s) "
"[%s]",
tr_truncd (100 * st->percentDone, 1),
st->peersSendingToUs, st->peersConnected, dnStr,
st->peersGettingFromUs, upStr,
ratioStr);
}
else if (st->activity == TR_STATUS_SEED)
{
char upStr[80];
char ratioStr[80];
tr_formatter_speed_KBps (upStr, st->pieceUploadSpeed_KBps, sizeof (upStr));
tr_strlratio (ratioStr, st->ratio, sizeof (ratioStr));
tr_snprintf (buf, buflen,
"Seeding, uploading to %d of %d peer(s), %s [%s]",
st->peersGettingFromUs, st->peersConnected, upStr, ratioStr);
}
else
{
*buf = '\0';
}
}
static const char*
getConfigDir (int argc, const char ** argv)
{
int c;
const char * configDir = NULL;
const char * optarg;
const int ind = tr_optind;
while ((c = tr_getopt (getUsage (), argc, argv, options, &optarg)))
{
if (c == 'g')
{
configDir = optarg;
break;
}
}
tr_optind = ind;
if (configDir == NULL)
configDir = tr_getDefaultConfigDir (MY_CONFIG_NAME);
return configDir;
}
int
main (int argc, char ** argv)
{
int error;
tr_session * h;
tr_ctor * ctor;
tr_torrent * tor = NULL;
tr_variant settings;
const char * configDir;
uint8_t * fileContents;
size_t fileLength;
const char * str;
tr_formatter_mem_init (MEM_K, MEM_K_STR, MEM_M_STR, MEM_G_STR, MEM_T_STR);
tr_formatter_size_init (DISK_K,DISK_K_STR, DISK_M_STR, DISK_G_STR, DISK_T_STR);
tr_formatter_speed_init (SPEED_K, SPEED_K_STR, SPEED_M_STR, SPEED_G_STR, SPEED_T_STR);
printf ("%s %s\n", MY_READABLE_NAME, LONG_VERSION_STRING);
/* user needs to pass in at least one argument */
if (argc < 2)
{
tr_getopt_usage (MY_READABLE_NAME, getUsage (), options);
return EXIT_FAILURE;
}
/* load the defaults from config file + libtransmission defaults */
tr_variantInitDict (&settings, 0);
configDir = getConfigDir (argc, (const char**)argv);
tr_sessionLoadSettings (&settings, configDir, MY_CONFIG_NAME);
/* the command line overrides defaults */
if (parseCommandLine (&settings, argc, (const char**)argv))
return EXIT_FAILURE;
if (showVersion)
return EXIT_SUCCESS;
/* Check the options for validity */
if (!torrentPath)
{
fprintf (stderr, "No torrent specified!\n");
return EXIT_FAILURE;
}
if (tr_variantDictFindStr (&settings, TR_KEY_download_dir, &str, NULL))
{
if (!tr_fileExists (str, NULL))
{
tr_mkdirp (str, 0700);
if (!tr_fileExists (str, NULL))
{
fprintf (stderr, "Unable to create download directory \"%s\"!\n", str);
return EXIT_FAILURE;
}
}
}
h = tr_sessionInit ("cli", configDir, false, &settings);
ctor = tr_ctorNew (h);
fileContents = tr_loadFile (torrentPath, &fileLength);
tr_ctorSetPaused (ctor, TR_FORCE, false);
if (fileContents != NULL)
{
tr_ctorSetMetainfo (ctor, fileContents, fileLength);
}
else if (!memcmp (torrentPath, "magnet:?", 8))
{
tr_ctorSetMetainfoFromMagnetLink (ctor, torrentPath);
}
else if (!memcmp (torrentPath, "http", 4))
{
tr_webRun (h, torrentPath, NULL, NULL, onTorrentFileDownloaded, ctor);
waitingOnWeb = true;
while (waitingOnWeb)
tr_wait_msec (1000);
}
else
{
fprintf (stderr, "ERROR: Unrecognized torrent \"%s\".\n", torrentPath);
fprintf (stderr, " * If you're trying to create a torrent, use transmission-create.\n");
fprintf (stderr, " * If you're trying to see a torrent's info, use transmission-show.\n");
tr_sessionClose (h);
return EXIT_FAILURE;
}
tr_free (fileContents);
tor = tr_torrentNew (ctor, &error);
tr_ctorFree (ctor);
if (!tor)
{
fprintf (stderr, "Failed opening torrent file `%s'\n", torrentPath);
tr_sessionClose (h);
return EXIT_FAILURE;
}
signal (SIGINT, sigHandler);
#ifndef WIN32
signal (SIGHUP, sigHandler);
#endif
tr_torrentStart (tor);
if (verify)
{
verify = false;
tr_torrentVerify (tor, NULL, NULL);
}
for (;;)
{
char line[LINEWIDTH];
const tr_stat * st;
const char * messageName[] = { NULL, "Tracker gave a warning:",
"Tracker gave an error:",
"Error:" };
tr_wait_msec (200);
if (gotsig)
{
gotsig = false;
printf ("\nStopping torrent...\n");
tr_torrentStop (tor);
}
if (manualUpdate)
{
manualUpdate = false;
if (!tr_torrentCanManualUpdate (tor))
{
fprintf (stderr, "\nReceived SIGHUP, but can't send a manual update now\n");
}
else
{
fprintf (stderr, "\nReceived SIGHUP: manual update scheduled\n");
tr_torrentManualUpdate (tor);
}
}
st = tr_torrentStat (tor);
if (st->activity == TR_STATUS_STOPPED)
break;
getStatusStr (st, line, sizeof (line));
printf ("\r%-*s", LINEWIDTH, line);
if (messageName[st->error])
fprintf (stderr, "\n%s: %s\n", messageName[st->error], st->errorString);
}
tr_sessionSaveSettings (h, configDir, &settings);
printf ("\n");
tr_variantFree (&settings);
tr_sessionClose (h);
return EXIT_SUCCESS;
}
/***
****
****
***/
static int
parseCommandLine (tr_variant * d, int argc, const char ** argv)
{
int c;
const char * optarg;
while ((c = tr_getopt (getUsage (), argc, argv, options, &optarg)))
{
switch (c)
{
case 'b':
tr_variantDictAddBool (d, TR_KEY_blocklist_enabled, true);
break;
case 'B': tr_variantDictAddBool (d, TR_KEY_blocklist_enabled, false);
break;
case 'd':
tr_variantDictAddInt (d, TR_KEY_speed_limit_down, atoi (optarg));
tr_variantDictAddBool (d, TR_KEY_speed_limit_down_enabled, true);
break;
case 'D': tr_variantDictAddBool (d, TR_KEY_speed_limit_down_enabled, false);
break;
case 'f':
tr_variantDictAddStr (d, TR_KEY_script_torrent_done_filename, optarg);
tr_variantDictAddBool (d, TR_KEY_script_torrent_done_enabled, true);
break;
case 'g': /* handled above */
break;
case 'm':
tr_variantDictAddBool (d, TR_KEY_port_forwarding_enabled, true);
break;
case 'M':
tr_variantDictAddBool (d, TR_KEY_port_forwarding_enabled, false);
break;
case 'p':
tr_variantDictAddInt (d, TR_KEY_peer_port, atoi (optarg));
break;
case 't':
tr_variantDictAddInt (d, TR_KEY_peer_socket_tos, atoi (optarg));
break;
case 'u':
tr_variantDictAddInt (d, TR_KEY_speed_limit_up, atoi (optarg));
tr_variantDictAddBool (d, TR_KEY_speed_limit_up_enabled, true);
break;
case 'U':
tr_variantDictAddBool (d, TR_KEY_speed_limit_up_enabled, false);
break;
case 'v':
verify = true;
break;
case 'V':
showVersion = true;
break;
case 'w':
tr_variantDictAddStr (d, TR_KEY_download_dir, optarg);
break;
case 910:
tr_variantDictAddInt (d, TR_KEY_encryption, TR_ENCRYPTION_REQUIRED);
break;
case 911:
tr_variantDictAddInt (d, TR_KEY_encryption, TR_ENCRYPTION_PREFERRED);
break;
case 912:
tr_variantDictAddInt (d, TR_KEY_encryption, TR_CLEAR_PREFERRED);
break;
case TR_OPT_UNK:
if (torrentPath == NULL)
torrentPath = optarg;
break;
default:
return 1;
}
}
return 0;
}
static void
sigHandler (int signal)
{
switch (signal)
{
case SIGINT:
gotsig = true;
break;
#ifndef WIN32
case SIGHUP:
manualUpdate = true;
break;
#endif
default:
break;
}
}
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