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transmission/libtransmission/session.c

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/*
* This file Copyright (C) Mnemosyne LLC
*
* This file is licensed by the GPL version 2. Works owned by the
* Transmission project are granted a special exemption to clause 2(b)
* so that the bulk of its code can remain under the MIT license.
* This exemption does not extend to derived works not owned by
* the Transmission project.
*
* $Id$
*/
#include <assert.h>
#include <errno.h> /* ENOENT */
#include <stdlib.h>
#include <string.h> /* memcpy */
#include <signal.h>
#include <sys/types.h> /* stat(), umask() */
#include <sys/stat.h> /* stat(), umask() */
#include <unistd.h> /* stat */
#include <dirent.h> /* opendir */
#include <event2/dns.h> /* evdns_base_free() */
#include <event2/event.h>
#include <libutp/utp.h>
//#define TR_SHOW_DEPRECATED
#include "transmission.h"
#include "announcer.h"
#include "bandwidth.h"
#include "bencode.h"
#include "blocklist.h"
#include "cache.h"
#include "crypto.h"
#include "fdlimit.h"
#include "list.h"
#include "net.h"
#include "peer-io.h"
#include "peer-mgr.h"
#include "platform.h" /* tr_lock, tr_getTorrentDir(), tr_getFreeSpace() */
#include "port-forwarding.h"
#include "rpc-server.h"
#include "session.h"
#include "stats.h"
#include "torrent.h"
#include "tr-dht.h" /* tr_dhtUpkeep() */
#include "tr-udp.h"
#include "tr-utp.h"
#include "tr-lpd.h"
#include "trevent.h"
#include "utils.h"
#include "verify.h"
#include "version.h"
#include "web.h"
enum
{
#ifdef TR_LIGHTWEIGHT
DEFAULT_CACHE_SIZE_MB = 2,
DEFAULT_PREFETCH_ENABLED = false,
#else
DEFAULT_CACHE_SIZE_MB = 4,
DEFAULT_PREFETCH_ENABLED = true,
#endif
SAVE_INTERVAL_SECS = 360
};
#define dbgmsg( ... ) \
do { \
if( tr_deepLoggingIsActive( ) ) \
tr_deepLog( __FILE__, __LINE__, NULL, __VA_ARGS__ ); \
} while( 0 )
static tr_port
getRandomPort( tr_session * s )
{
return tr_cryptoWeakRandInt( s->randomPortHigh - s->randomPortLow + 1) + s->randomPortLow;
}
/* Generate a peer id : "-TRxyzb-" + 12 random alphanumeric
characters, where x is the major version number, y is the
minor version number, z is the maintenance number, and b
designates beta (Azureus-style) */
void
tr_peerIdInit( uint8_t * buf )
{
int i;
int val;
int total = 0;
const char * pool = "0123456789abcdefghijklmnopqrstuvwxyz";
const int base = 36;
memcpy( buf, PEERID_PREFIX, 8 );
tr_cryptoRandBuf( buf+8, 11 );
for( i=8; i<19; ++i ) {
val = buf[i] % base;
total += val;
buf[i] = pool[val];
}
val = total % base ? base - ( total % base ) : 0;
buf[19] = pool[val];
buf[20] = '\0';
}
/***
****
***/
tr_encryption_mode
tr_sessionGetEncryption( tr_session * session )
{
assert( session );
return session->encryptionMode;
}
void
tr_sessionSetEncryption( tr_session * session,
tr_encryption_mode mode )
{
assert( session );
assert( mode == TR_ENCRYPTION_PREFERRED
|| mode == TR_ENCRYPTION_REQUIRED
|| mode == TR_CLEAR_PREFERRED );
session->encryptionMode = mode;
}
/***
****
***/
struct tr_bindinfo
{
int socket;
tr_address addr;
struct event * ev;
};
static void
close_bindinfo( struct tr_bindinfo * b )
{
if( ( b != NULL ) && ( b->socket >=0 ) )
{
event_free( b->ev );
b->ev = NULL;
tr_netCloseSocket( b->socket );
}
}
static void
close_incoming_peer_port( tr_session * session )
{
close_bindinfo( session->public_ipv4 );
close_bindinfo( session->public_ipv6 );
}
static void
free_incoming_peer_port( tr_session * session )
{
close_bindinfo( session->public_ipv4 );
tr_free( session->public_ipv4 );
session->public_ipv4 = NULL;
close_bindinfo( session->public_ipv6 );
tr_free( session->public_ipv6 );
session->public_ipv6 = NULL;
}
static void
accept_incoming_peer( int fd, short what UNUSED, void * vsession )
{
int clientSocket;
tr_port clientPort;
tr_address clientAddr;
tr_session * session = vsession;
clientSocket = tr_netAccept( session, fd, &clientAddr, &clientPort );
if( clientSocket > 0 ) {
tr_deepLog( __FILE__, __LINE__, NULL, "new incoming connection %d (%s)",
clientSocket, tr_peerIoAddrStr( &clientAddr, clientPort ) );
tr_peerMgrAddIncoming( session->peerMgr, &clientAddr, clientPort,
clientSocket, NULL );
}
}
static void
open_incoming_peer_port( tr_session * session )
{
struct tr_bindinfo * b;
/* bind an ipv4 port to listen for incoming peers... */
b = session->public_ipv4;
b->socket = tr_netBindTCP( &b->addr, session->private_peer_port, false );
if( b->socket >= 0 ) {
b->ev = event_new( session->event_base, b->socket, EV_READ | EV_PERSIST, accept_incoming_peer, session );
event_add( b->ev, NULL );
}
/* and do the exact same thing for ipv6, if it's supported... */
if( tr_net_hasIPv6( session->private_peer_port ) ) {
b = session->public_ipv6;
b->socket = tr_netBindTCP( &b->addr, session->private_peer_port, false );
if( b->socket >= 0 ) {
b->ev = event_new( session->event_base, b->socket, EV_READ | EV_PERSIST, accept_incoming_peer, session );
event_add( b->ev, NULL );
}
}
}
const tr_address*
tr_sessionGetPublicAddress( const tr_session * session, int tr_af_type, bool * is_default_value )
{
const char * default_value;
const struct tr_bindinfo * bindinfo;
switch( tr_af_type )
{
case TR_AF_INET:
bindinfo = session->public_ipv4;
default_value = TR_DEFAULT_BIND_ADDRESS_IPV4;
break;
case TR_AF_INET6:
bindinfo = session->public_ipv6;
default_value = TR_DEFAULT_BIND_ADDRESS_IPV6;
break;
default:
bindinfo = NULL;
default_value = "";
break;
}
if( is_default_value && bindinfo )
*is_default_value = !tr_strcmp0( default_value, tr_address_to_string( &bindinfo->addr ) );
return bindinfo ? &bindinfo->addr : NULL;
}
/***
****
***/
#ifdef TR_LIGHTWEIGHT
#define TR_DEFAULT_ENCRYPTION TR_CLEAR_PREFERRED
#else
#define TR_DEFAULT_ENCRYPTION TR_ENCRYPTION_PREFERRED
#endif
static int
parse_tos( const char *str )
{
char *p;
int value;
if( !evutil_ascii_strcasecmp( str, "" ) )
return 0;
if( !evutil_ascii_strcasecmp( str, "default" ) )
return 0;
if( !evutil_ascii_strcasecmp( str, "lowcost" ) )
return 0x10;
if( !evutil_ascii_strcasecmp( str, "mincost" ) )
return 0x10;
if( !evutil_ascii_strcasecmp( str, "throughput" ) )
return 0x08;
if( !evutil_ascii_strcasecmp( str, "reliability" ) )
return 0x04;
if( !evutil_ascii_strcasecmp( str, "lowdelay" ) )
return 0x02;
value = strtol( str, &p, 0 );
if( !p || ( p == str ) )
return 0;
return value;
}
static const char *
format_tos(int value)
{
static char buf[8];
switch(value) {
case 0: return "default";
case 0x10: return "lowcost";
case 0x08: return "throughput";
case 0x04: return "reliability";
case 0x02: return "lowdelay";
default:
snprintf(buf, 8, "%d", value);
return buf;
}
}
void
tr_sessionGetDefaultSettings( tr_benc * d )
{
assert( tr_bencIsDict( d ) );
tr_bencDictReserve( d, 60 );
tr_bencDictAddBool( d, TR_PREFS_KEY_BLOCKLIST_ENABLED, false );
tr_bencDictAddStr ( d, TR_PREFS_KEY_BLOCKLIST_URL, "http://www.example.com/blocklist" );
tr_bencDictAddInt ( d, TR_PREFS_KEY_MAX_CACHE_SIZE_MB, DEFAULT_CACHE_SIZE_MB );
tr_bencDictAddBool( d, TR_PREFS_KEY_DHT_ENABLED, true );
tr_bencDictAddBool( d, TR_PREFS_KEY_UTP_ENABLED, true );
tr_bencDictAddBool( d, TR_PREFS_KEY_LPD_ENABLED, false );
tr_bencDictAddStr ( d, TR_PREFS_KEY_DOWNLOAD_DIR, tr_getDefaultDownloadDir( ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_DSPEED_KBps, 100 );
tr_bencDictAddBool( d, TR_PREFS_KEY_DSPEED_ENABLED, false );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ENCRYPTION, TR_DEFAULT_ENCRYPTION );
tr_bencDictAddInt ( d, TR_PREFS_KEY_IDLE_LIMIT, 30 );
tr_bencDictAddBool( d, TR_PREFS_KEY_IDLE_LIMIT_ENABLED, false );
tr_bencDictAddStr ( d, TR_PREFS_KEY_INCOMPLETE_DIR, tr_getDefaultDownloadDir( ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_INCOMPLETE_DIR_ENABLED, false );
tr_bencDictAddInt ( d, TR_PREFS_KEY_MSGLEVEL, TR_MSG_INF );
tr_bencDictAddInt ( d, TR_PREFS_KEY_DOWNLOAD_QUEUE_SIZE, 5 );
tr_bencDictAddBool( d, TR_PREFS_KEY_DOWNLOAD_QUEUE_ENABLED, true );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_LIMIT_GLOBAL, atoi( TR_DEFAULT_PEER_LIMIT_GLOBAL_STR ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_LIMIT_TORRENT, atoi( TR_DEFAULT_PEER_LIMIT_TORRENT_STR ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_PORT, atoi( TR_DEFAULT_PEER_PORT_STR ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_PEER_PORT_RANDOM_ON_START, false );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_PORT_RANDOM_LOW, 49152 );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_PORT_RANDOM_HIGH, 65535 );
tr_bencDictAddStr ( d, TR_PREFS_KEY_PEER_SOCKET_TOS, TR_DEFAULT_PEER_SOCKET_TOS_STR );
tr_bencDictAddBool( d, TR_PREFS_KEY_PEX_ENABLED, true );
tr_bencDictAddBool( d, TR_PREFS_KEY_PORT_FORWARDING, true );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PREALLOCATION, TR_PREALLOCATE_SPARSE );
tr_bencDictAddBool( d, TR_PREFS_KEY_PREFETCH_ENABLED, DEFAULT_PREFETCH_ENABLED );
tr_bencDictAddBool( d, TR_PREFS_KEY_QUEUE_STALLED_ENABLED, true );
tr_bencDictAddInt ( d, TR_PREFS_KEY_QUEUE_STALLED_MINUTES, 30 );
tr_bencDictAddReal( d, TR_PREFS_KEY_RATIO, 2.0 );
tr_bencDictAddBool( d, TR_PREFS_KEY_RATIO_ENABLED, false );
tr_bencDictAddBool( d, TR_PREFS_KEY_RENAME_PARTIAL_FILES, true );
tr_bencDictAddBool( d, TR_PREFS_KEY_RPC_AUTH_REQUIRED, false );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_BIND_ADDRESS, "0.0.0.0" );
tr_bencDictAddBool( d, TR_PREFS_KEY_RPC_ENABLED, false );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_PASSWORD, "" );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_USERNAME, "" );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_WHITELIST, TR_DEFAULT_RPC_WHITELIST );
tr_bencDictAddBool( d, TR_PREFS_KEY_RPC_WHITELIST_ENABLED, true );
tr_bencDictAddInt ( d, TR_PREFS_KEY_RPC_PORT, atoi( TR_DEFAULT_RPC_PORT_STR ) );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_URL, TR_DEFAULT_RPC_URL_STR );
tr_bencDictAddBool( d, TR_PREFS_KEY_SCRAPE_PAUSED_TORRENTS, true );
tr_bencDictAddStr ( d, TR_PREFS_KEY_SCRIPT_TORRENT_DONE_FILENAME, "" );
tr_bencDictAddBool( d, TR_PREFS_KEY_SCRIPT_TORRENT_DONE_ENABLED, false );
tr_bencDictAddInt ( d, TR_PREFS_KEY_SEED_QUEUE_SIZE, 10 );
tr_bencDictAddBool( d, TR_PREFS_KEY_SEED_QUEUE_ENABLED, false );
tr_bencDictAddBool( d, TR_PREFS_KEY_ALT_SPEED_ENABLED, false );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_UP_KBps, 50 ); /* half the regular */
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_DOWN_KBps, 50 ); /* half the regular */
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_TIME_BEGIN, 540 ); /* 9am */
tr_bencDictAddBool( d, TR_PREFS_KEY_ALT_SPEED_TIME_ENABLED, false );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_TIME_END, 1020 ); /* 5pm */
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_TIME_DAY, TR_SCHED_ALL );
tr_bencDictAddInt ( d, TR_PREFS_KEY_USPEED_KBps, 100 );
tr_bencDictAddBool( d, TR_PREFS_KEY_USPEED_ENABLED, false );
tr_bencDictAddInt ( d, TR_PREFS_KEY_UMASK, 022 );
tr_bencDictAddInt ( d, TR_PREFS_KEY_UPLOAD_SLOTS_PER_TORRENT, 14 );
tr_bencDictAddStr ( d, TR_PREFS_KEY_BIND_ADDRESS_IPV4, TR_DEFAULT_BIND_ADDRESS_IPV4 );
tr_bencDictAddStr ( d, TR_PREFS_KEY_BIND_ADDRESS_IPV6, TR_DEFAULT_BIND_ADDRESS_IPV6 );
tr_bencDictAddBool( d, TR_PREFS_KEY_START, true );
tr_bencDictAddBool( d, TR_PREFS_KEY_TRASH_ORIGINAL, false );
}
void
tr_sessionGetSettings( tr_session * s, struct tr_benc * d )
{
assert( tr_bencIsDict( d ) );
tr_bencDictReserve( d, 60 );
tr_bencDictAddBool( d, TR_PREFS_KEY_BLOCKLIST_ENABLED, tr_blocklistIsEnabled( s ) );
tr_bencDictAddStr ( d, TR_PREFS_KEY_BLOCKLIST_URL, tr_blocklistGetURL( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_MAX_CACHE_SIZE_MB, tr_sessionGetCacheLimit_MB( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_DHT_ENABLED, s->isDHTEnabled );
tr_bencDictAddBool( d, TR_PREFS_KEY_UTP_ENABLED, s->isUTPEnabled );
tr_bencDictAddBool( d, TR_PREFS_KEY_LPD_ENABLED, s->isLPDEnabled );
tr_bencDictAddStr ( d, TR_PREFS_KEY_DOWNLOAD_DIR, s->downloadDir );
tr_bencDictAddInt ( d, TR_PREFS_KEY_DOWNLOAD_QUEUE_SIZE, tr_sessionGetQueueSize( s, TR_DOWN ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_DOWNLOAD_QUEUE_ENABLED, tr_sessionGetQueueEnabled( s, TR_DOWN ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_DSPEED_KBps, tr_sessionGetSpeedLimit_KBps( s, TR_DOWN ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_DSPEED_ENABLED, tr_sessionIsSpeedLimited( s, TR_DOWN ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ENCRYPTION, s->encryptionMode );
tr_bencDictAddInt ( d, TR_PREFS_KEY_IDLE_LIMIT, tr_sessionGetIdleLimit( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_IDLE_LIMIT_ENABLED, tr_sessionIsIdleLimited( s ) );
tr_bencDictAddStr ( d, TR_PREFS_KEY_INCOMPLETE_DIR, tr_sessionGetIncompleteDir( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_INCOMPLETE_DIR_ENABLED, tr_sessionIsIncompleteDirEnabled( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_MSGLEVEL, tr_getMessageLevel( ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_LIMIT_GLOBAL, s->peerLimit );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_LIMIT_TORRENT, s->peerLimitPerTorrent );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_PORT, tr_sessionGetPeerPort( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_PEER_PORT_RANDOM_ON_START, s->isPortRandom );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_PORT_RANDOM_LOW, s->randomPortLow );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PEER_PORT_RANDOM_HIGH, s->randomPortHigh );
tr_bencDictAddStr ( d, TR_PREFS_KEY_PEER_SOCKET_TOS, format_tos(s->peerSocketTOS) );
tr_bencDictAddStr ( d, TR_PREFS_KEY_PEER_CONGESTION_ALGORITHM, s->peer_congestion_algorithm );
tr_bencDictAddBool( d, TR_PREFS_KEY_PEX_ENABLED, s->isPexEnabled );
tr_bencDictAddBool( d, TR_PREFS_KEY_PORT_FORWARDING, tr_sessionIsPortForwardingEnabled( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PREALLOCATION, s->preallocationMode );
tr_bencDictAddInt ( d, TR_PREFS_KEY_PREFETCH_ENABLED, s->isPrefetchEnabled );
tr_bencDictAddBool( d, TR_PREFS_KEY_QUEUE_STALLED_ENABLED, tr_sessionGetQueueStalledEnabled( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_QUEUE_STALLED_MINUTES, tr_sessionGetQueueStalledMinutes( s ) );
tr_bencDictAddReal( d, TR_PREFS_KEY_RATIO, s->desiredRatio );
tr_bencDictAddBool( d, TR_PREFS_KEY_RATIO_ENABLED, s->isRatioLimited );
tr_bencDictAddBool( d, TR_PREFS_KEY_RENAME_PARTIAL_FILES, tr_sessionIsIncompleteFileNamingEnabled( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_RPC_AUTH_REQUIRED, tr_sessionIsRPCPasswordEnabled( s ) );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_BIND_ADDRESS, tr_sessionGetRPCBindAddress( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_RPC_ENABLED, tr_sessionIsRPCEnabled( s ) );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_PASSWORD, tr_sessionGetRPCPassword( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_RPC_PORT, tr_sessionGetRPCPort( s ) );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_URL, tr_sessionGetRPCUrl( s ) );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_USERNAME, tr_sessionGetRPCUsername( s ) );
tr_bencDictAddStr ( d, TR_PREFS_KEY_RPC_WHITELIST, tr_sessionGetRPCWhitelist( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_RPC_WHITELIST_ENABLED, tr_sessionGetRPCWhitelistEnabled( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_SCRAPE_PAUSED_TORRENTS, s->scrapePausedTorrents );
tr_bencDictAddBool( d, TR_PREFS_KEY_SCRIPT_TORRENT_DONE_ENABLED, tr_sessionIsTorrentDoneScriptEnabled( s ) );
tr_bencDictAddStr ( d, TR_PREFS_KEY_SCRIPT_TORRENT_DONE_FILENAME, tr_sessionGetTorrentDoneScript( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_SEED_QUEUE_SIZE, tr_sessionGetQueueSize( s, TR_UP ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_SEED_QUEUE_ENABLED, tr_sessionGetQueueEnabled( s, TR_UP ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_ALT_SPEED_ENABLED, tr_sessionUsesAltSpeed( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_UP_KBps, tr_sessionGetAltSpeed_KBps( s, TR_UP ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_DOWN_KBps, tr_sessionGetAltSpeed_KBps( s, TR_DOWN ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_TIME_BEGIN, tr_sessionGetAltSpeedBegin( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_ALT_SPEED_TIME_ENABLED, tr_sessionUsesAltSpeedTime( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_TIME_END, tr_sessionGetAltSpeedEnd( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_ALT_SPEED_TIME_DAY, tr_sessionGetAltSpeedDay( s ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_USPEED_KBps, tr_sessionGetSpeedLimit_KBps( s, TR_UP ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_USPEED_ENABLED, tr_sessionIsSpeedLimited( s, TR_UP ) );
tr_bencDictAddInt ( d, TR_PREFS_KEY_UMASK, s->umask );
tr_bencDictAddInt ( d, TR_PREFS_KEY_UPLOAD_SLOTS_PER_TORRENT, s->uploadSlotsPerTorrent );
tr_bencDictAddStr ( d, TR_PREFS_KEY_BIND_ADDRESS_IPV4, tr_address_to_string( &s->public_ipv4->addr ) );
tr_bencDictAddStr ( d, TR_PREFS_KEY_BIND_ADDRESS_IPV6, tr_address_to_string( &s->public_ipv6->addr ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_START, !tr_sessionGetPaused( s ) );
tr_bencDictAddBool( d, TR_PREFS_KEY_TRASH_ORIGINAL, tr_sessionGetDeleteSource( s ) );
}
bool
tr_sessionLoadSettings( tr_benc * d, const char * configDir, const char * appName )
{
int err = 0;
char * filename;
tr_benc fileSettings;
tr_benc sessionDefaults;
tr_benc tmp;
bool success = false;
assert( tr_bencIsDict( d ) );
/* initializing the defaults: caller may have passed in some app-level defaults.
* preserve those and use the session defaults to fill in any missing gaps. */
tr_bencInitDict( &sessionDefaults, 0 );
tr_sessionGetDefaultSettings( &sessionDefaults );
tr_bencMergeDicts( &sessionDefaults, d );
tmp = *d; *d = sessionDefaults; sessionDefaults = tmp;
/* if caller didn't specify a config dir, use the default */
if( !configDir || !*configDir )
configDir = tr_getDefaultConfigDir( appName );
/* file settings override the defaults */
filename = tr_buildPath( configDir, "settings.json", NULL );
err = tr_bencLoadFile( &fileSettings, TR_FMT_JSON, filename );
if( !err ) {
tr_bencMergeDicts( d, &fileSettings );
tr_bencFree( &fileSettings );
}
/* cleanup */
tr_bencFree( &sessionDefaults );
tr_free( filename );
success = (err==0) || (err==ENOENT);
return success;
}
void
tr_sessionSaveSettings( tr_session * session,
const char * configDir,
const tr_benc * clientSettings )
{
tr_benc settings;
char * filename = tr_buildPath( configDir, "settings.json", NULL );
assert( tr_bencIsDict( clientSettings ) );
tr_bencInitDict( &settings, 0 );
/* the existing file settings are the fallback values */
{
tr_benc fileSettings;
const int err = tr_bencLoadFile( &fileSettings, TR_FMT_JSON, filename );
if( !err )
{
tr_bencMergeDicts( &settings, &fileSettings );
tr_bencFree( &fileSettings );
}
}
/* the client's settings override the file settings */
tr_bencMergeDicts( &settings, clientSettings );
/* the session's true values override the file & client settings */
{
tr_benc sessionSettings;
tr_bencInitDict( &sessionSettings, 0 );
tr_sessionGetSettings( session, &sessionSettings );
tr_bencMergeDicts( &settings, &sessionSettings );
tr_bencFree( &sessionSettings );
}
/* save the result */
tr_bencToFile( &settings, TR_FMT_JSON, filename );
/* cleanup */
tr_free( filename );
tr_bencFree( &settings );
}
/***
****
***/
/**
* Periodically save the .resume files of any torrents whose
* status has recently changed. This prevents loss of metadata
* in the case of a crash, unclean shutdown, clumsy user, etc.
*/
static void
onSaveTimer( int foo UNUSED, short bar UNUSED, void * vsession )
{
tr_torrent * tor = NULL;
tr_session * session = vsession;
if( tr_cacheFlushDone( session->cache ) )
tr_err( "Error while flushing completed pieces from cache" );
while(( tor = tr_torrentNext( session, tor )))
tr_torrentSave( tor );
tr_statsSaveDirty( session );
tr_timerAdd( session->saveTimer, SAVE_INTERVAL_SECS, 0 );
}
/***
****
***/
static void tr_sessionInitImpl( void * );
struct init_data
{
tr_session * session;
const char * configDir;
bool done;
bool messageQueuingEnabled;
tr_benc * clientSettings;
};
tr_session *
tr_sessionInit( const char * tag,
const char * configDir,
bool messageQueuingEnabled,
tr_benc * clientSettings )
{
int64_t i;
tr_session * session;
struct init_data data;
assert( tr_bencIsDict( clientSettings ) );
tr_timeUpdate( time( NULL ) );
/* initialize the bare skeleton of the session object */
session = tr_new0( tr_session, 1 );
session->udp_socket = -1;
session->udp6_socket = -1;
session->lock = tr_lockNew( );
session->cache = tr_cacheNew( 1024*1024*2 );
session->tag = tr_strdup( tag );
session->magicNumber = SESSION_MAGIC_NUMBER;
tr_bandwidthConstruct( &session->bandwidth, session, NULL );
tr_peerIdInit( session->peer_id );
tr_bencInitList( &session->removedTorrents, 0 );
/* nice to start logging at the very beginning */
if( tr_bencDictFindInt( clientSettings, TR_PREFS_KEY_MSGLEVEL, &i ) )
tr_setMessageLevel( i );
/* start the libtransmission thread */
tr_netInit( ); /* must go before tr_eventInit */
tr_eventInit( session );
assert( session->events != NULL );
/* run the rest in the libtransmission thread */
data.done = false;
data.session = session;
data.configDir = configDir;
data.messageQueuingEnabled = messageQueuingEnabled;
data.clientSettings = clientSettings;
tr_runInEventThread( session, tr_sessionInitImpl, &data );
while( !data.done )
tr_wait_msec( 100 );
return session;
}
static void turtleCheckClock( tr_session * s, struct tr_turtle_info * t );
static void
onNowTimer( int foo UNUSED, short bar UNUSED, void * vsession )
{
int usec;
const int min = 100;
const int max = 999999;
struct timeval tv;
tr_torrent * tor = NULL;
tr_session * session = vsession;
const time_t now = time( NULL );
assert( tr_isSession( session ) );
assert( session->nowTimer != NULL );
/**
*** tr_session things to do once per second
**/
tr_timeUpdate( now );
tr_dhtUpkeep( session );
if( session->turtle.isClockEnabled )
turtleCheckClock( session, &session->turtle );
while(( tor = tr_torrentNext( session, tor ))) {
if( tor->isRunning ) {
if( tr_torrentIsSeed( tor ) )
++tor->secondsSeeding;
else
++tor->secondsDownloading;
}
}
/**
*** Set the timer
**/
/* schedule the next timer for right after the next second begins */
gettimeofday( &tv, NULL );
usec = 1000000 - tv.tv_usec;
if( usec > max ) usec = max;
if( usec < min ) usec = min;
tr_timerAdd( session->nowTimer, 0, usec );
/* fprintf( stderr, "time %zu sec, %zu microsec\n", (size_t)tr_time(), (size_t)tv.tv_usec ); */
}
static void loadBlocklists( tr_session * session );
static void
tr_sessionInitImpl( void * vdata )
{
tr_benc settings;
struct init_data * data = vdata;
tr_benc * clientSettings = data->clientSettings;
tr_session * session = data->session;
assert( tr_amInEventThread( session ) );
assert( tr_bencIsDict( clientSettings ) );
dbgmsg( "tr_sessionInit: the session's top-level bandwidth object is %p",
&session->bandwidth );
tr_bencInitDict( &settings, 0 );
tr_sessionGetDefaultSettings( &settings );
tr_bencMergeDicts( &settings, clientSettings );
assert( session->event_base != NULL );
session->nowTimer = evtimer_new( session->event_base, onNowTimer, session );
onNowTimer( 0, 0, session );
#ifndef WIN32
/* Don't exit when writing on a broken socket */
signal( SIGPIPE, SIG_IGN );
#endif
tr_setMessageQueuing( data->messageQueuingEnabled );
tr_setConfigDir( session, data->configDir );
session->peerMgr = tr_peerMgrNew( session );
session->shared = tr_sharedInit( session );
/**
*** Blocklist
**/
{
char * filename = tr_buildPath( session->configDir, "blocklists", NULL );
tr_mkdirp( filename, 0777 );
tr_free( filename );
loadBlocklists( session );
}
assert( tr_isSession( session ) );
session->saveTimer = evtimer_new( session->event_base, onSaveTimer, session );
tr_timerAdd( session->saveTimer, SAVE_INTERVAL_SECS, 0 );
tr_announcerInit( session );
/* first %s is the application name
second %s is the version number */
tr_inf( _( "%s %s started" ), TR_NAME, LONG_VERSION_STRING );
tr_statsInit( session );
tr_webInit( session );
tr_sessionSet( session, &settings );
tr_udpInit( session );
if( session->isLPDEnabled )
tr_lpdInit( session, &session->public_ipv4->addr );
/* cleanup */
tr_bencFree( &settings );
data->done = true;
}
static void turtleBootstrap( tr_session *, struct tr_turtle_info * );
static void setPeerPort( tr_session * session, tr_port port );
static void
sessionSetImpl( void * vdata )
{
int64_t i;
double d;
bool boolVal;
const char * str;
struct tr_bindinfo b;
struct init_data * data = vdata;
tr_session * session = data->session;
tr_benc * settings = data->clientSettings;
struct tr_turtle_info * turtle = &session->turtle;
assert( tr_isSession( session ) );
assert( tr_bencIsDict( settings ) );
assert( tr_amInEventThread( session ) );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_MSGLEVEL, &i ) )
tr_setMessageLevel( i );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_UMASK, &i ) ) {
session->umask = (mode_t)i;
umask( session->umask );
}
/* misc features */
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_MAX_CACHE_SIZE_MB, &i ) )
tr_sessionSetCacheLimit_MB( session, i );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_PEER_LIMIT_TORRENT, &i ) )
tr_sessionSetPeerLimitPerTorrent( session, i );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_PEX_ENABLED, &boolVal ) )
tr_sessionSetPexEnabled( session, boolVal );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_DHT_ENABLED, &boolVal ) )
tr_sessionSetDHTEnabled( session, boolVal );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_UTP_ENABLED, &boolVal ) )
tr_sessionSetUTPEnabled( session, boolVal );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_LPD_ENABLED, &boolVal ) )
tr_sessionSetLPDEnabled( session, boolVal );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_ENCRYPTION, &i ) )
tr_sessionSetEncryption( session, i );
if( tr_bencDictFindStr( settings, TR_PREFS_KEY_PEER_SOCKET_TOS, &str ) )
session->peerSocketTOS = parse_tos( str );
if( tr_bencDictFindStr( settings, TR_PREFS_KEY_PEER_CONGESTION_ALGORITHM, &str ) )
session->peer_congestion_algorithm = tr_strdup(str);
else
session->peer_congestion_algorithm = tr_strdup("");
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_BLOCKLIST_ENABLED, &boolVal ) )
tr_blocklistSetEnabled( session, boolVal );
if( tr_bencDictFindStr( settings, TR_PREFS_KEY_BLOCKLIST_URL, &str ) )
tr_blocklistSetURL( session, str );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_START, &boolVal ) )
tr_sessionSetPaused( session, !boolVal );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_TRASH_ORIGINAL, &boolVal) )
tr_sessionSetDeleteSource( session, boolVal );
/* torrent queues */
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_QUEUE_STALLED_MINUTES, &i ) )
tr_sessionSetQueueStalledMinutes( session, i );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_QUEUE_STALLED_ENABLED, &boolVal ) )
tr_sessionSetQueueStalledEnabled( session, boolVal );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_DOWNLOAD_QUEUE_SIZE, &i ) )
tr_sessionSetQueueSize( session, TR_DOWN, i );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_DOWNLOAD_QUEUE_ENABLED, &boolVal ) )
tr_sessionSetQueueEnabled( session, TR_DOWN, boolVal );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_SEED_QUEUE_SIZE, &i ) )
tr_sessionSetQueueSize( session, TR_UP, i );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_SEED_QUEUE_ENABLED, &boolVal ) )
tr_sessionSetQueueEnabled( session, TR_UP, boolVal );
/* files and directories */
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_PREFETCH_ENABLED, &boolVal ) )
session->isPrefetchEnabled = boolVal;
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_PREALLOCATION, &i ) )
session->preallocationMode = i;
if( tr_bencDictFindStr( settings, TR_PREFS_KEY_DOWNLOAD_DIR, &str ) )
tr_sessionSetDownloadDir( session, str );
if( tr_bencDictFindStr( settings, TR_PREFS_KEY_INCOMPLETE_DIR, &str ) )
tr_sessionSetIncompleteDir( session, str );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_INCOMPLETE_DIR_ENABLED, &boolVal ) )
tr_sessionSetIncompleteDirEnabled( session, boolVal );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_RENAME_PARTIAL_FILES, &boolVal ) )
tr_sessionSetIncompleteFileNamingEnabled( session, boolVal );
/* rpc server */
if( session->rpcServer != NULL ) /* close the old one */
tr_rpcClose( &session->rpcServer );
session->rpcServer = tr_rpcInit( session, settings );
/* public addresses */
free_incoming_peer_port( session );
str = TR_PREFS_KEY_BIND_ADDRESS_IPV4;
tr_bencDictFindStr( settings, TR_PREFS_KEY_BIND_ADDRESS_IPV4, &str );
if( !tr_address_from_string( &b.addr, str ) || ( b.addr.type != TR_AF_INET ) )
b.addr = tr_inaddr_any;
b.socket = -1;
session->public_ipv4 = tr_memdup( &b, sizeof( struct tr_bindinfo ) );
str = TR_PREFS_KEY_BIND_ADDRESS_IPV6;
tr_bencDictFindStr( settings, TR_PREFS_KEY_BIND_ADDRESS_IPV6, &str );
if( !tr_address_from_string( &b.addr, str ) || ( b.addr.type != TR_AF_INET6 ) )
b.addr = tr_in6addr_any;
b.socket = -1;
session->public_ipv6 = tr_memdup( &b, sizeof( struct tr_bindinfo ) );
/* incoming peer port */
if( tr_bencDictFindInt ( settings, TR_PREFS_KEY_PEER_PORT_RANDOM_LOW, &i ) )
session->randomPortLow = i;
if( tr_bencDictFindInt ( settings, TR_PREFS_KEY_PEER_PORT_RANDOM_HIGH, &i ) )
session->randomPortHigh = i;
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_PEER_PORT_RANDOM_ON_START, &boolVal ) )
tr_sessionSetPeerPortRandomOnStart( session, boolVal );
if( !tr_bencDictFindInt( settings, TR_PREFS_KEY_PEER_PORT, &i ) )
i = session->private_peer_port;
setPeerPort( session, boolVal ? getRandomPort( session ) : i );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_PORT_FORWARDING, &boolVal ) )
tr_sessionSetPortForwardingEnabled( session, boolVal );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_PEER_LIMIT_GLOBAL, &i ) )
session->peerLimit = i;
/**
**/
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_UPLOAD_SLOTS_PER_TORRENT, &i ) )
session->uploadSlotsPerTorrent = i;
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_USPEED_KBps, &i ) )
tr_sessionSetSpeedLimit_KBps( session, TR_UP, i );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_USPEED_ENABLED, &boolVal ) )
tr_sessionLimitSpeed( session, TR_UP, boolVal );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_DSPEED_KBps, &i ) )
tr_sessionSetSpeedLimit_KBps( session, TR_DOWN, i );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_DSPEED_ENABLED, &boolVal ) )
tr_sessionLimitSpeed( session, TR_DOWN, boolVal );
if( tr_bencDictFindReal( settings, TR_PREFS_KEY_RATIO, &d ) )
tr_sessionSetRatioLimit( session, d );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_RATIO_ENABLED, &boolVal ) )
tr_sessionSetRatioLimited( session, boolVal );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_IDLE_LIMIT, &i ) )
tr_sessionSetIdleLimit( session, i );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_IDLE_LIMIT_ENABLED, &boolVal ) )
tr_sessionSetIdleLimited( session, boolVal );
/**
*** Turtle Mode
**/
/* update the turtle mode's fields */
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_ALT_SPEED_UP_KBps, &i ) )
turtle->speedLimit_Bps[TR_UP] = toSpeedBytes( i );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_ALT_SPEED_DOWN_KBps, &i ) )
turtle->speedLimit_Bps[TR_DOWN] = toSpeedBytes( i );
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_ALT_SPEED_TIME_BEGIN, &i ) )
turtle->beginMinute = i;
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_ALT_SPEED_TIME_END, &i ) )
turtle->endMinute = i;
if( tr_bencDictFindInt( settings, TR_PREFS_KEY_ALT_SPEED_TIME_DAY, &i ) )
turtle->days = i;
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_ALT_SPEED_TIME_ENABLED, &boolVal ) )
turtle->isClockEnabled = boolVal;
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_ALT_SPEED_ENABLED, &boolVal ) )
turtle->isEnabled = boolVal;
turtleBootstrap( session, turtle );
/**
*** Scripts
**/
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_SCRIPT_TORRENT_DONE_ENABLED, &boolVal ) )
tr_sessionSetTorrentDoneScriptEnabled( session, boolVal );
if( tr_bencDictFindStr( settings, TR_PREFS_KEY_SCRIPT_TORRENT_DONE_FILENAME, &str ) )
tr_sessionSetTorrentDoneScript( session, str );
if( tr_bencDictFindBool( settings, TR_PREFS_KEY_SCRAPE_PAUSED_TORRENTS, &boolVal ) )
session->scrapePausedTorrents = boolVal;
data->done = true;
}
void
tr_sessionSet( tr_session * session, struct tr_benc * settings )
{
struct init_data data;
data.done = false;
data.session = session;
data.clientSettings = settings;
/* run the rest in the libtransmission thread */
tr_runInEventThread( session, sessionSetImpl, &data );
while( !data.done )
tr_wait_msec( 100 );
}
/***
****
***/
void
tr_sessionSetDownloadDir( tr_session * session, const char * dir )
{
assert( tr_isSession( session ) );
if( session->downloadDir != dir )
{
tr_free( session->downloadDir );
session->downloadDir = tr_strdup( dir );
}
}
const char *
tr_sessionGetDownloadDir( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->downloadDir;
}
int64_t
tr_sessionGetDownloadDirFreeSpace( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_getFreeSpace( session->downloadDir );
}
/***
****
***/
void
tr_sessionSetIncompleteFileNamingEnabled( tr_session * session, bool b )
{
assert( tr_isSession( session ) );
assert( tr_isBool( b ) );
session->isIncompleteFileNamingEnabled = b;
}
bool
tr_sessionIsIncompleteFileNamingEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->isIncompleteFileNamingEnabled;
}
/***
****
***/
void
tr_sessionSetIncompleteDir( tr_session * session, const char * dir )
{
assert( tr_isSession( session ) );
if( session->incompleteDir != dir )
{
tr_free( session->incompleteDir );
session->incompleteDir = tr_strdup( dir );
}
}
const char*
tr_sessionGetIncompleteDir( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->incompleteDir;
}
void
tr_sessionSetIncompleteDirEnabled( tr_session * session, bool b )
{
assert( tr_isSession( session ) );
assert( tr_isBool( b ) );
session->isIncompleteDirEnabled = b;
}
bool
tr_sessionIsIncompleteDirEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->isIncompleteDirEnabled;
}
/***
****
***/
void
tr_sessionLock( tr_session * session )
{
assert( tr_isSession( session ) );
tr_lockLock( session->lock );
}
void
tr_sessionUnlock( tr_session * session )
{
assert( tr_isSession( session ) );
tr_lockUnlock( session->lock );
}
bool
tr_sessionIsLocked( const tr_session * session )
{
return tr_isSession( session ) && tr_lockHave( session->lock );
}
/***********************************************************************
* tr_setBindPort
***********************************************************************
*
**********************************************************************/
static void
peerPortChanged( void * session )
{
tr_torrent * tor = NULL;
assert( tr_isSession( session ) );
close_incoming_peer_port( session );
open_incoming_peer_port( session );
tr_sharedPortChanged( session );
while(( tor = tr_torrentNext( session, tor )))
tr_torrentChangeMyPort( tor );
}
static void
setPeerPort( tr_session * session, tr_port port )
{
session->private_peer_port = port;
session->public_peer_port = port;
tr_runInEventThread( session, peerPortChanged, session );
}
void
tr_sessionSetPeerPort( tr_session * session, tr_port port )
{
if( tr_isSession( session ) && ( session->private_peer_port != port ) )
{
setPeerPort( session, port );
}
}
tr_port
tr_sessionGetPeerPort( const tr_session * session )
{
return tr_isSession( session ) ? session->private_peer_port : 0;
}
tr_port
tr_sessionSetPeerPortRandom( tr_session * session )
{
assert( tr_isSession( session ) );
tr_sessionSetPeerPort( session, getRandomPort( session ) );
return session->private_peer_port;
}
void
tr_sessionSetPeerPortRandomOnStart( tr_session * session,
bool random )
{
assert( tr_isSession( session ) );
session->isPortRandom = random;
}
bool
tr_sessionGetPeerPortRandomOnStart( tr_session * session )
{
assert( tr_isSession( session ) );
return session->isPortRandom;
}
tr_port_forwarding
tr_sessionGetPortForwarding( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_sharedTraversalStatus( session->shared );
}
/***
****
***/
void
tr_sessionSetRatioLimited( tr_session * session, bool isLimited )
{
assert( tr_isSession( session ) );
session->isRatioLimited = isLimited;
}
void
tr_sessionSetRatioLimit( tr_session * session, double desiredRatio )
{
assert( tr_isSession( session ) );
session->desiredRatio = desiredRatio;
}
bool
tr_sessionIsRatioLimited( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->isRatioLimited;
}
double
tr_sessionGetRatioLimit( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->desiredRatio;
}
/***
****
***/
void
tr_sessionSetIdleLimited( tr_session * session, bool isLimited )
{
assert( tr_isSession( session ) );
session->isIdleLimited = isLimited;
}
void
tr_sessionSetIdleLimit( tr_session * session, uint16_t idleMinutes )
{
assert( tr_isSession( session ) );
session->idleLimitMinutes = idleMinutes;
}
bool
tr_sessionIsIdleLimited( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->isIdleLimited;
}
uint16_t
tr_sessionGetIdleLimit( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->idleLimitMinutes;
}
/***
****
**** SPEED LIMITS
****
***/
bool
tr_sessionGetActiveSpeedLimit_Bps( const tr_session * session, tr_direction dir, unsigned int * setme_Bps )
{
int isLimited = true;
if( !tr_isSession( session ) )
return false;
if( tr_sessionUsesAltSpeed( session ) )
*setme_Bps = tr_sessionGetAltSpeed_Bps( session, dir );
else if( tr_sessionIsSpeedLimited( session, dir ) )
*setme_Bps = tr_sessionGetSpeedLimit_Bps( session, dir );
else
isLimited = false;
return isLimited;
}
bool
tr_sessionGetActiveSpeedLimit_KBps( const tr_session * session,
tr_direction dir,
double * setme_KBps )
{
unsigned int Bps = 0;
const bool is_active = tr_sessionGetActiveSpeedLimit_Bps( session, dir, &Bps );
*setme_KBps = toSpeedKBps( Bps );
return is_active;
}
static void
updateBandwidth( tr_session * session, tr_direction dir )
{
unsigned int limit_Bps = 0;
const bool isLimited = tr_sessionGetActiveSpeedLimit_Bps( session, dir, &limit_Bps );
const bool zeroCase = isLimited && !limit_Bps;
tr_bandwidthSetLimited( &session->bandwidth, dir, isLimited && !zeroCase );
tr_bandwidthSetDesiredSpeed_Bps( &session->bandwidth, dir, limit_Bps );
}
enum
{
MINUTES_PER_HOUR = 60,
MINUTES_PER_DAY = MINUTES_PER_HOUR * 24,
MINUTES_PER_WEEK = MINUTES_PER_DAY * 7
};
static void
turtleUpdateTable( struct tr_turtle_info * t )
{
int day;
tr_bitfield * b = &t->minutes;
tr_bitfieldSetHasNone( b );
for( day=0; day<7; ++day )
{
if( t->days & (1<<day) )
{
int i;
const time_t begin = t->beginMinute;
time_t end = t->endMinute;
if( end <= begin )
end += MINUTES_PER_DAY;
for( i=begin; i<end; ++i )
tr_bitfieldAdd( b, (i+day*MINUTES_PER_DAY) % MINUTES_PER_WEEK );
}
}
}
static void
altSpeedToggled( void * vsession )
{
tr_session * session = vsession;
struct tr_turtle_info * t = &session->turtle;
assert( tr_isSession( session ) );
updateBandwidth( session, TR_UP );
updateBandwidth( session, TR_DOWN );
if( t->callback != NULL )
(*t->callback)( session, t->isEnabled, t->changedByUser, t->callbackUserData );
}
static void
useAltSpeed( tr_session * s, struct tr_turtle_info * t,
bool enabled, bool byUser )
{
assert( tr_isSession( s ) );
assert( t != NULL );
assert( tr_isBool( enabled ) );
assert( tr_isBool( byUser ) );
if( t->isEnabled != enabled )
{
t->isEnabled = enabled;
t->changedByUser = byUser;
tr_runInEventThread( s, altSpeedToggled, s );
}
}
/**
* @return whether turtle should be on/off according to the scheduler
*/
static bool
getInTurtleTime( const struct tr_turtle_info * t )
{
struct tm tm;
size_t minute_of_the_week;
const time_t now = tr_time( );
tr_localtime_r( &now, &tm );
minute_of_the_week = tm.tm_wday * MINUTES_PER_DAY
+ tm.tm_hour * MINUTES_PER_HOUR
+ tm.tm_min;
if( minute_of_the_week >= MINUTES_PER_WEEK ) /* leap minutes? */
minute_of_the_week = MINUTES_PER_WEEK - 1;
return tr_bitfieldHas( &t->minutes, minute_of_the_week );
}
static inline tr_auto_switch_state_t
autoSwitchState( bool enabled )
{
return enabled ? TR_AUTO_SWITCH_ON : TR_AUTO_SWITCH_OFF;
}
static void
turtleCheckClock( tr_session * s, struct tr_turtle_info * t )
{
bool enabled;
bool alreadySwitched;
tr_auto_switch_state_t newAutoTurtleState;
assert( t->isClockEnabled );
enabled = getInTurtleTime( t );
newAutoTurtleState = autoSwitchState( enabled );
alreadySwitched = ( t->autoTurtleState == newAutoTurtleState );
if( !alreadySwitched )
{
tr_inf( "Time to turn %s turtle mode!", (enabled?"on":"off") );
t->autoTurtleState = newAutoTurtleState;
useAltSpeed( s, t, enabled, false );
}
}
/* Called after the turtle's fields are loaded from an outside source.
* It initializes the implementation fields
* and turns on turtle mode if the clock settings say to. */
static void
turtleBootstrap( tr_session * session, struct tr_turtle_info * turtle )
{
turtle->changedByUser = false;
turtle->autoTurtleState = TR_AUTO_SWITCH_UNUSED;
tr_bitfieldConstruct( &turtle->minutes, MINUTES_PER_WEEK );
turtleUpdateTable( turtle );
if( turtle->isClockEnabled )
{
turtle->isEnabled = getInTurtleTime( turtle );
turtle->autoTurtleState = autoSwitchState( turtle->isEnabled );
}
altSpeedToggled( session );
}
/***
**** Primary session speed limits
***/
void
tr_sessionSetSpeedLimit_Bps( tr_session * s, tr_direction d, unsigned int Bps )
{
assert( tr_isSession( s ) );
assert( tr_isDirection( d ) );
s->speedLimit_Bps[d] = Bps;
updateBandwidth( s, d );
}
void
tr_sessionSetSpeedLimit_KBps( tr_session * s, tr_direction d, unsigned int KBps )
{
tr_sessionSetSpeedLimit_Bps( s, d, toSpeedBytes( KBps ) );
}
unsigned int
tr_sessionGetSpeedLimit_Bps( const tr_session * s, tr_direction d )
{
assert( tr_isSession( s ) );
assert( tr_isDirection( d ) );
return s->speedLimit_Bps[d];
}
unsigned int
tr_sessionGetSpeedLimit_KBps( const tr_session * s, tr_direction d )
{
return toSpeedKBps( tr_sessionGetSpeedLimit_Bps( s, d ) );
}
void
tr_sessionLimitSpeed( tr_session * s, tr_direction d, bool b )
{
assert( tr_isSession( s ) );
assert( tr_isDirection( d ) );
assert( tr_isBool( b ) );
s->speedLimitEnabled[d] = b;
updateBandwidth( s, d );
}
bool
tr_sessionIsSpeedLimited( const tr_session * s, tr_direction d )
{
assert( tr_isSession( s ) );
assert( tr_isDirection( d ) );
return s->speedLimitEnabled[d];
}
/***
**** Alternative speed limits that are used during scheduled times
***/
void
tr_sessionSetAltSpeed_Bps( tr_session * s, tr_direction d, unsigned int Bps )
{
assert( tr_isSession( s ) );
assert( tr_isDirection( d ) );
s->turtle.speedLimit_Bps[d] = Bps;
updateBandwidth( s, d );
}
void
tr_sessionSetAltSpeed_KBps( tr_session * s, tr_direction d, unsigned int KBps )
{
tr_sessionSetAltSpeed_Bps( s, d, toSpeedBytes( KBps ) );
}
unsigned int
tr_sessionGetAltSpeed_Bps( const tr_session * s, tr_direction d )
{
assert( tr_isSession( s ) );
assert( tr_isDirection( d ) );
return s->turtle.speedLimit_Bps[d];
}
unsigned int
tr_sessionGetAltSpeed_KBps( const tr_session * s, tr_direction d )
{
return toSpeedKBps( tr_sessionGetAltSpeed_Bps( s, d ) );
}
static void
userPokedTheClock( tr_session * s, struct tr_turtle_info * t )
{
tr_dbg( "Refreshing the turtle mode clock due to user changes" );
t->autoTurtleState = TR_AUTO_SWITCH_UNUSED;
turtleUpdateTable( t );
if( t->isClockEnabled )
{
const bool enabled = getInTurtleTime( t );
useAltSpeed( s, t, enabled, true );
t->autoTurtleState = autoSwitchState( enabled );
}
}
void
tr_sessionUseAltSpeedTime( tr_session * s, bool b )
{
struct tr_turtle_info * t = &s->turtle;
assert( tr_isSession( s ) );
assert( tr_isBool ( b ) );
if( t->isClockEnabled != b ) {
t->isClockEnabled = b;
userPokedTheClock( s, t );
}
}
bool
tr_sessionUsesAltSpeedTime( const tr_session * s )
{
assert( tr_isSession( s ) );
return s->turtle.isClockEnabled;
}
void
tr_sessionSetAltSpeedBegin( tr_session * s, int minute )
{
assert( tr_isSession( s ) );
assert( 0<=minute && minute<(60*24) );
if( s->turtle.beginMinute != minute ) {
s->turtle.beginMinute = minute;
userPokedTheClock( s, &s->turtle );
}
}
int
tr_sessionGetAltSpeedBegin( const tr_session * s )
{
assert( tr_isSession( s ) );
return s->turtle.beginMinute;
}
void
tr_sessionSetAltSpeedEnd( tr_session * s, int minute )
{
assert( tr_isSession( s ) );
assert( 0<=minute && minute<(60*24) );
if( s->turtle.endMinute != minute ) {
s->turtle.endMinute = minute;
userPokedTheClock( s, &s->turtle );
}
}
int
tr_sessionGetAltSpeedEnd( const tr_session * s )
{
assert( tr_isSession( s ) );
return s->turtle.endMinute;
}
void
tr_sessionSetAltSpeedDay( tr_session * s, tr_sched_day days )
{
assert( tr_isSession( s ) );
if( s->turtle.days != days ) {
s->turtle.days = days;
userPokedTheClock( s, &s->turtle );
}
}
tr_sched_day
tr_sessionGetAltSpeedDay( const tr_session * s )
{
assert( tr_isSession( s ) );
return s->turtle.days;
}
void
tr_sessionUseAltSpeed( tr_session * session, bool enabled )
{
useAltSpeed( session, &session->turtle, enabled, true );
}
bool
tr_sessionUsesAltSpeed( const tr_session * s )
{
assert( tr_isSession( s ) );
return s->turtle.isEnabled;
}
void
tr_sessionSetAltSpeedFunc( tr_session * session,
tr_altSpeedFunc func,
void * userData )
{
assert( tr_isSession( session ) );
session->turtle.callback = func;
session->turtle.callbackUserData = userData;
}
void
tr_sessionClearAltSpeedFunc( tr_session * session )
{
tr_sessionSetAltSpeedFunc( session, NULL, NULL );
}
/***
****
***/
void
tr_sessionSetPeerLimit( tr_session * session, uint16_t n )
{
assert( tr_isSession( session ) );
session->peerLimit = n;
}
uint16_t
tr_sessionGetPeerLimit( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->peerLimit;
}
void
tr_sessionSetPeerLimitPerTorrent( tr_session * session, uint16_t n )
{
assert( tr_isSession( session ) );
session->peerLimitPerTorrent = n;
}
uint16_t
tr_sessionGetPeerLimitPerTorrent( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->peerLimitPerTorrent;
}
/***
****
***/
void
tr_sessionSetPaused( tr_session * session, bool isPaused )
{
assert( tr_isSession( session ) );
session->pauseAddedTorrent = isPaused;
}
bool
tr_sessionGetPaused( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->pauseAddedTorrent;
}
void
tr_sessionSetDeleteSource( tr_session * session, bool deleteSource )
{
assert( tr_isSession( session ) );
session->deleteSourceTorrent = deleteSource;
}
bool
tr_sessionGetDeleteSource( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->deleteSourceTorrent;
}
/***
****
***/
unsigned int
tr_sessionGetPieceSpeed_Bps( const tr_session * session, tr_direction dir )
{
return tr_isSession( session ) ? tr_bandwidthGetPieceSpeed_Bps( &session->bandwidth, 0, dir ) : 0;
}
unsigned int
tr_sessionGetRawSpeed_Bps( const tr_session * session, tr_direction dir )
{
return tr_isSession( session ) ? tr_bandwidthGetRawSpeed_Bps( &session->bandwidth, 0, dir ) : 0;
}
double
tr_sessionGetRawSpeed_KBps( const tr_session * session, tr_direction dir )
{
return toSpeedKBps( tr_sessionGetRawSpeed_Bps( session, dir ) );
}
int
tr_sessionCountTorrents( const tr_session * session )
{
return tr_isSession( session ) ? session->torrentCount : 0;
}
static int
compareTorrentByCur( const void * va, const void * vb )
{
const tr_torrent * a = *(const tr_torrent**)va;
const tr_torrent * b = *(const tr_torrent**)vb;
const uint64_t aCur = a->downloadedCur + a->uploadedCur;
const uint64_t bCur = b->downloadedCur + b->uploadedCur;
if( aCur != bCur )
return aCur > bCur ? -1 : 1; /* close the biggest torrents first */
return 0;
}
static void closeBlocklists( tr_session * );
static void
sessionCloseImpl( void * vsession )
{
tr_session * session = vsession;
tr_torrent * tor;
int i, n;
tr_torrent ** torrents;
assert( tr_isSession( session ) );
free_incoming_peer_port( session );
if( session->isLPDEnabled )
tr_lpdUninit( session );
tr_utpClose( session );
tr_dhtUninit( session );
event_free( session->saveTimer );
session->saveTimer = NULL;
event_free( session->nowTimer );
session->nowTimer = NULL;
tr_verifyClose( session );
tr_sharedClose( session );
tr_rpcClose( &session->rpcServer );
/* Close the torrents. Get the most active ones first so that
* if we can't get them all closed in a reasonable amount of time,
* at least we get the most important ones first. */
tor = NULL;
n = session->torrentCount;
torrents = tr_new( tr_torrent *, session->torrentCount );
for( i = 0; i < n; ++i )
torrents[i] = tor = tr_torrentNext( session, tor );
qsort( torrents, n, sizeof( tr_torrent* ), compareTorrentByCur );
for( i = 0; i < n; ++i )
tr_torrentFree( torrents[i] );
tr_free( torrents );
/* Close the announcer *after* closing the torrents
so that all the &event=stopped messages will be
queued to be sent by tr_announcerClose() */
tr_announcerClose( session );
/* and this goes *after* announcer close so that
it won't be idle until the announce events are sent... */
tr_webClose( session, TR_WEB_CLOSE_WHEN_IDLE );
tr_cacheFree( session->cache );
session->cache = NULL;
/* gotta keep udp running long enough to send out all
the &event=stopped UDP tracker messages */
while( !tr_tracker_udp_is_idle( session ) ) {
tr_tracker_udp_upkeep( session );
tr_wait_msec( 100 );
}
/* we had to wait until UDP trackers were closed before closing these: */
evdns_base_free( session->evdns_base, 0 );
session->evdns_base = NULL;
tr_tracker_udp_close( session );
tr_udpUninit( session );
tr_statsClose( session );
tr_peerMgrFree( session->peerMgr );
closeBlocklists( session );
tr_fdClose( session );
session->isClosed = true;
}
static int
deadlineReached( const time_t deadline )
{
return time( NULL ) >= deadline;
}
#define SHUTDOWN_MAX_SECONDS 20
void
tr_sessionClose( tr_session * session )
{
const time_t deadline = time( NULL ) + SHUTDOWN_MAX_SECONDS;
assert( tr_isSession( session ) );
dbgmsg( "shutting down transmission session %p... now is %zu, deadline is %zu", session, (size_t)time(NULL), (size_t)deadline );
/* close the session */
tr_runInEventThread( session, sessionCloseImpl, session );
while( !session->isClosed && !deadlineReached( deadline ) )
{
dbgmsg( "waiting for the libtransmission thread to finish" );
tr_wait_msec( 100 );
}
/* "shared" and "tracker" have live sockets,
* so we need to keep the transmission thread alive
* for a bit while they tell the router & tracker
* that we're closing now */
while( ( session->shared || session->web || session->announcer || session->announcer_udp )
&& !deadlineReached( deadline ) )
{
dbgmsg( "waiting on port unmap (%p) or announcer (%p)... now %zu deadline %zu",
session->shared, session->announcer, (size_t)time(NULL), (size_t)deadline );
tr_wait_msec( 100 );
}
tr_webClose( session, TR_WEB_CLOSE_NOW );
/* close the libtransmission thread */
tr_eventClose( session );
while( session->events != NULL )
{
static bool forced = false;
dbgmsg( "waiting for libtransmission thread to finish... now %zu deadline %zu", (size_t)time(NULL), (size_t)deadline );
tr_wait_msec( 500 );
if( deadlineReached( deadline ) && !forced )
{
dbgmsg( "calling event_loopbreak()" );
forced = true;
event_base_loopbreak( session->event_base );
}
if( deadlineReached( deadline+3 ) )
{
dbgmsg( "deadline+3 reached... calling break...\n" );
break;
}
}
/* free the session memory */
tr_bencFree( &session->removedTorrents );
tr_bandwidthDestruct( &session->bandwidth );
tr_bitfieldDestruct( &session->turtle.minutes );
tr_lockFree( session->lock );
if( session->metainfoLookup ) {
tr_bencFree( session->metainfoLookup );
tr_free( session->metainfoLookup );
}
tr_free( session->torrentDoneScript );
tr_free( session->tag );
tr_free( session->configDir );
tr_free( session->resumeDir );
tr_free( session->torrentDir );
tr_free( session->downloadDir );
tr_free( session->incompleteDir );
tr_free( session->blocklist_url );
tr_free( session->peer_congestion_algorithm );
tr_free( session );
}
struct sessionLoadTorrentsData
{
tr_session * session;
tr_ctor * ctor;
int * setmeCount;
tr_torrent ** torrents;
bool done;
};
static void
sessionLoadTorrents( void * vdata )
{
int i;
int n = 0;
struct stat sb;
DIR * odir = NULL;
tr_list * l = NULL;
tr_list * list = NULL;
struct sessionLoadTorrentsData * data = vdata;
const char * dirname = tr_getTorrentDir( data->session );
assert( tr_isSession( data->session ) );
tr_ctorSetSave( data->ctor, false ); /* since we already have them */
if( !stat( dirname, &sb )
&& S_ISDIR( sb.st_mode )
&& ( ( odir = opendir ( dirname ) ) ) )
{
struct dirent *d;
for( d = readdir( odir ); d != NULL; d = readdir( odir ) )
{
if( tr_str_has_suffix( d->d_name, ".torrent" ) )
{
tr_torrent * tor;
char * path = tr_buildPath( dirname, d->d_name, NULL );
tr_ctorSetMetainfoFromFile( data->ctor, path );
if(( tor = tr_torrentNew( data->ctor, NULL )))
{
tr_list_prepend( &list, tor );
++n;
}
tr_free( path );
}
}
closedir( odir );
}
data->torrents = tr_new( tr_torrent *, n );
for( i = 0, l = list; l != NULL; l = l->next )
data->torrents[i++] = (tr_torrent*) l->data;
assert( i == n );
tr_list_free( &list, NULL );
if( n )
tr_inf( _( "Loaded %d torrents" ), n );
if( data->setmeCount )
*data->setmeCount = n;
data->done = true;
}
tr_torrent **
tr_sessionLoadTorrents( tr_session * session,
tr_ctor * ctor,
int * setmeCount )
{
struct sessionLoadTorrentsData data;
data.session = session;
data.ctor = ctor;
data.setmeCount = setmeCount;
data.torrents = NULL;
data.done = false;
tr_runInEventThread( session, sessionLoadTorrents, &data );
while( !data.done )
tr_wait_msec( 100 );
return data.torrents;
}
/***
****
***/
void
tr_sessionSetPexEnabled( tr_session * session, bool enabled )
{
assert( tr_isSession( session ) );
session->isPexEnabled = enabled != 0;
}
bool
tr_sessionIsPexEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->isPexEnabled;
}
bool
tr_sessionAllowsDHT( const tr_session * session )
{
return tr_sessionIsDHTEnabled( session );
}
bool
tr_sessionIsDHTEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->isDHTEnabled;
}
static void
toggleDHTImpl( void * data )
{
tr_session * session = data;
assert( tr_isSession( session ) );
tr_udpUninit( session );
session->isDHTEnabled = !session->isDHTEnabled;
tr_udpInit( session );
}
void
tr_sessionSetDHTEnabled( tr_session * session, bool enabled )
{
assert( tr_isSession( session ) );
assert( tr_isBool( enabled ) );
if( ( enabled != 0 ) != ( session->isDHTEnabled != 0 ) )
tr_runInEventThread( session, toggleDHTImpl, session );
}
/***
****
***/
bool
tr_sessionIsUTPEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
#ifdef WITH_UTP
return session->isUTPEnabled;
#else
return false;
#endif
}
static void
toggle_utp( void * data )
{
tr_session * session = data;
assert( tr_isSession( session ) );
session->isUTPEnabled = !session->isUTPEnabled;
tr_udpSetSocketBuffers( session );
/* But don't call tr_utpClose -- see reset_timer in tr-utp.c for an
explanation. */
}
void
tr_sessionSetUTPEnabled( tr_session * session, bool enabled )
{
assert( tr_isSession( session ) );
assert( tr_isBool( enabled ) );
if( ( enabled != 0 ) != ( session->isUTPEnabled != 0 ) )
tr_runInEventThread( session, toggle_utp, session );
}
/***
****
***/
static void
toggleLPDImpl( void * data )
{
tr_session * session = data;
assert( tr_isSession( session ) );
if( session->isLPDEnabled )
tr_lpdUninit( session );
session->isLPDEnabled = !session->isLPDEnabled;
if( session->isLPDEnabled )
tr_lpdInit( session, &session->public_ipv4->addr );
}
void
tr_sessionSetLPDEnabled( tr_session * session, bool enabled )
{
assert( tr_isSession( session ) );
assert( tr_isBool( enabled ) );
if( ( enabled != 0 ) != ( session->isLPDEnabled != 0 ) )
tr_runInEventThread( session, toggleLPDImpl, session );
}
bool
tr_sessionIsLPDEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->isLPDEnabled;
}
bool
tr_sessionAllowsLPD( const tr_session * session )
{
return tr_sessionIsLPDEnabled( session );
}
/***
****
***/
void
tr_sessionSetCacheLimit_MB( tr_session * session, int max_bytes )
{
assert( tr_isSession( session ) );
tr_cacheSetLimit( session->cache, toMemBytes( max_bytes ) );
}
int
tr_sessionGetCacheLimit_MB( const tr_session * session )
{
assert( tr_isSession( session ) );
return toMemMB( tr_cacheGetLimit( session->cache ) );
}
/***
****
***/
struct port_forwarding_data
{
bool enabled;
struct tr_shared * shared;
};
static void
setPortForwardingEnabled( void * vdata )
{
struct port_forwarding_data * data = vdata;
tr_sharedTraversalEnable( data->shared, data->enabled );
tr_free( data );
}
void
tr_sessionSetPortForwardingEnabled( tr_session * session, bool enabled )
{
struct port_forwarding_data * d;
d = tr_new0( struct port_forwarding_data, 1 );
d->shared = session->shared;
d->enabled = enabled;
tr_runInEventThread( session, setPortForwardingEnabled, d );
}
bool
tr_sessionIsPortForwardingEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_sharedTraversalIsEnabled( session->shared );
}
/***
****
***/
static int
tr_stringEndsWith( const char * str, const char * end )
{
const size_t slen = strlen( str );
const size_t elen = strlen( end );
return slen >= elen && !memcmp( &str[slen - elen], end, elen );
}
static void
loadBlocklists( tr_session * session )
{
int binCount = 0;
int newCount = 0;
struct stat sb;
char * dirname;
DIR * odir = NULL;
tr_list * list = NULL;
const bool isEnabled = session->isBlocklistEnabled;
/* walk through the directory and find blocklists */
dirname = tr_buildPath( session->configDir, "blocklists", NULL );
if( !stat( dirname,
&sb ) && S_ISDIR( sb.st_mode )
&& ( ( odir = opendir( dirname ) ) ) )
{
struct dirent *d;
for( d = readdir( odir ); d; d = readdir( odir ) )
{
char * filename;
if( !d->d_name || d->d_name[0] == '.' ) /* skip dotfiles, ., and ..
*/
continue;
filename = tr_buildPath( dirname, d->d_name, NULL );
if( tr_stringEndsWith( filename, ".bin" ) )
{
/* if we don't already have this blocklist, add it */
if( !tr_list_find( list, filename,
(TrListCompareFunc)strcmp ) )
{
tr_list_append( &list,
_tr_blocklistNew( filename, isEnabled ) );
++binCount;
}
}
else
{
/* strip out the file suffix, if there is one, and add ".bin"
instead */
tr_blocklist * b;
const char * dot = strrchr( d->d_name, '.' );
const int len = dot ? dot - d->d_name
: (int)strlen( d->d_name );
char * tmp = tr_strdup_printf(
"%s" TR_PATH_DELIMITER_STR "%*.*s.bin",
dirname, len, len, d->d_name );
b = _tr_blocklistNew( tmp, isEnabled );
_tr_blocklistSetContent( b, filename );
tr_list_append( &list, b );
++newCount;
tr_free( tmp );
}
tr_free( filename );
}
closedir( odir );
}
session->blocklists = list;
if( binCount )
tr_dbg( "Found %d blocklists in \"%s\"", binCount, dirname );
if( newCount )
tr_dbg( "Found %d new blocklists in \"%s\"", newCount, dirname );
tr_free( dirname );
}
static void
closeBlocklists( tr_session * session )
{
tr_list_free( &session->blocklists,
(TrListForeachFunc)_tr_blocklistFree );
}
void
tr_sessionReloadBlocklists( tr_session * session )
{
closeBlocklists( session );
loadBlocklists( session );
tr_peerMgrOnBlocklistChanged( session->peerMgr );
}
int
tr_blocklistGetRuleCount( const tr_session * session )
{
int n = 0;
tr_list * l;
assert( tr_isSession( session ) );
for( l = session->blocklists; l; l = l->next )
n += _tr_blocklistGetRuleCount( l->data );
return n;
}
bool
tr_blocklistIsEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->isBlocklistEnabled;
}
void
tr_blocklistSetEnabled( tr_session * session, bool isEnabled )
{
tr_list * l;
assert( tr_isSession( session ) );
session->isBlocklistEnabled = isEnabled != 0;
for( l=session->blocklists; l!=NULL; l=l->next )
_tr_blocklistSetEnabled( l->data, isEnabled );
}
bool
tr_blocklistExists( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->blocklists != NULL;
}
int
tr_blocklistSetContent( tr_session * session, const char * contentFilename )
{
tr_list * l;
int ruleCount;
tr_blocklist * b;
const char * defaultName = DEFAULT_BLOCKLIST_FILENAME;
tr_sessionLock( session );
for( b = NULL, l = session->blocklists; !b && l; l = l->next )
if( tr_stringEndsWith( _tr_blocklistGetFilename( l->data ),
defaultName ) )
b = l->data;
if( !b )
{
char * path = tr_buildPath( session->configDir, "blocklists", defaultName, NULL );
b = _tr_blocklistNew( path, session->isBlocklistEnabled );
tr_list_append( &session->blocklists, b );
tr_free( path );
}
ruleCount = _tr_blocklistSetContent( b, contentFilename );
tr_sessionUnlock( session );
return ruleCount;
}
bool
tr_sessionIsAddressBlocked( const tr_session * session,
const tr_address * addr )
{
tr_list * l;
assert( tr_isSession( session ) );
for( l = session->blocklists; l; l = l->next )
if( _tr_blocklistHasAddress( l->data, addr ) )
return true;
return false;
}
void
tr_blocklistSetURL( tr_session * session, const char * url )
{
if( session->blocklist_url != url )
{
tr_free( session->blocklist_url );
session->blocklist_url = tr_strdup( url );
}
}
const char *
tr_blocklistGetURL ( const tr_session * session )
{
return session->blocklist_url;
}
/***
****
***/
static void
metainfoLookupInit( tr_session * session )
{
struct stat sb;
const char * dirname = tr_getTorrentDir( session );
DIR * odir = NULL;
tr_ctor * ctor = NULL;
tr_benc * lookup;
int n = 0;
assert( tr_isSession( session ) );
/* walk through the directory and find the mappings */
lookup = tr_new0( tr_benc, 1 );
tr_bencInitDict( lookup, 0 );
ctor = tr_ctorNew( session );
tr_ctorSetSave( ctor, false ); /* since we already have them */
if( !stat( dirname, &sb ) && S_ISDIR( sb.st_mode ) && ( ( odir = opendir( dirname ) ) ) )
{
struct dirent *d;
while(( d = readdir( odir )))
{
if( tr_str_has_suffix( d->d_name, ".torrent" ) )
{
tr_info inf;
char * path = tr_buildPath( dirname, d->d_name, NULL );
tr_ctorSetMetainfoFromFile( ctor, path );
if( !tr_torrentParse( ctor, &inf ) )
{
++n;
tr_bencDictAddStr( lookup, inf.hashString, path );
}
tr_free( path );
}
}
closedir( odir );
}
tr_ctorFree( ctor );
session->metainfoLookup = lookup;
tr_dbg( "Found %d torrents in \"%s\"", n, dirname );
}
const char*
tr_sessionFindTorrentFile( const tr_session * session,
const char * hashString )
{
const char * filename = NULL;
if( !session->metainfoLookup )
metainfoLookupInit( (tr_session*)session );
tr_bencDictFindStr( session->metainfoLookup, hashString, &filename );
return filename;
}
void
tr_sessionSetTorrentFile( tr_session * session,
const char * hashString,
const char * filename )
{
/* since we walk session->configDir/torrents/ to build the lookup table,
* and tr_sessionSetTorrentFile() is just to tell us there's a new file
* in that same directory, we don't need to do anything here if the
* lookup table hasn't been built yet */
if( session->metainfoLookup )
tr_bencDictAddStr( session->metainfoLookup, hashString, filename );
}
/***
****
***/
void
tr_sessionSetRPCEnabled( tr_session * session, bool isEnabled )
{
assert( tr_isSession( session ) );
tr_rpcSetEnabled( session->rpcServer, isEnabled );
}
bool
tr_sessionIsRPCEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_rpcIsEnabled( session->rpcServer );
}
void
tr_sessionSetRPCPort( tr_session * session,
tr_port port )
{
assert( tr_isSession( session ) );
tr_rpcSetPort( session->rpcServer, port );
}
tr_port
tr_sessionGetRPCPort( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_rpcGetPort( session->rpcServer );
}
void
tr_sessionSetRPCUrl( tr_session * session,
const char * url )
{
assert( tr_isSession( session ) );
tr_rpcSetUrl( session->rpcServer, url );
}
const char*
tr_sessionGetRPCUrl( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_rpcGetUrl( session->rpcServer );
}
void
tr_sessionSetRPCCallback( tr_session * session,
tr_rpc_func func,
void * user_data )
{
assert( tr_isSession( session ) );
session->rpc_func = func;
session->rpc_func_user_data = user_data;
}
void
tr_sessionSetRPCWhitelist( tr_session * session,
const char * whitelist )
{
assert( tr_isSession( session ) );
tr_rpcSetWhitelist( session->rpcServer, whitelist );
}
const char*
tr_sessionGetRPCWhitelist( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_rpcGetWhitelist( session->rpcServer );
}
void
tr_sessionSetRPCWhitelistEnabled( tr_session * session, bool isEnabled )
{
assert( tr_isSession( session ) );
tr_rpcSetWhitelistEnabled( session->rpcServer, isEnabled );
}
bool
tr_sessionGetRPCWhitelistEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_rpcGetWhitelistEnabled( session->rpcServer );
}
void
tr_sessionSetRPCPassword( tr_session * session,
const char * password )
{
assert( tr_isSession( session ) );
tr_rpcSetPassword( session->rpcServer, password );
}
const char*
tr_sessionGetRPCPassword( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_rpcGetPassword( session->rpcServer );
}
void
tr_sessionSetRPCUsername( tr_session * session,
const char * username )
{
assert( tr_isSession( session ) );
tr_rpcSetUsername( session->rpcServer, username );
}
const char*
tr_sessionGetRPCUsername( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_rpcGetUsername( session->rpcServer );
}
void
tr_sessionSetRPCPasswordEnabled( tr_session * session, bool isEnabled )
{
assert( tr_isSession( session ) );
tr_rpcSetPasswordEnabled( session->rpcServer, isEnabled );
}
bool
tr_sessionIsRPCPasswordEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_rpcIsPasswordEnabled( session->rpcServer );
}
const char *
tr_sessionGetRPCBindAddress( const tr_session * session )
{
assert( tr_isSession( session ) );
return tr_rpcGetBindAddress( session->rpcServer );
}
/****
*****
****/
bool
tr_sessionIsTorrentDoneScriptEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->isTorrentDoneScriptEnabled;
}
void
tr_sessionSetTorrentDoneScriptEnabled( tr_session * session, bool isEnabled )
{
assert( tr_isSession( session ) );
assert( tr_isBool( isEnabled ) );
session->isTorrentDoneScriptEnabled = isEnabled;
}
const char *
tr_sessionGetTorrentDoneScript( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->torrentDoneScript;
}
void
tr_sessionSetTorrentDoneScript( tr_session * session, const char * scriptFilename )
{
assert( tr_isSession( session ) );
if( session->torrentDoneScript != scriptFilename )
{
tr_free( session->torrentDoneScript );
session->torrentDoneScript = tr_strdup( scriptFilename );
}
}
/***
****
***/
void
tr_sessionSetQueueSize( tr_session * session, tr_direction dir, int n )
{
assert( tr_isSession( session ) );
assert( tr_isDirection( dir ) );
session->queueSize[dir] = n;
}
int
tr_sessionGetQueueSize( const tr_session * session, tr_direction dir )
{
assert( tr_isSession( session ) );
assert( tr_isDirection( dir ) );
return session->queueSize[dir];
}
void
tr_sessionSetQueueEnabled( tr_session * session, tr_direction dir, bool is_enabled )
{
assert( tr_isSession( session ) );
assert( tr_isDirection( dir ) );
assert( tr_isBool( is_enabled ) );
session->queueEnabled[dir] = is_enabled;
}
bool
tr_sessionGetQueueEnabled( const tr_session * session, tr_direction dir )
{
assert( tr_isSession( session ) );
assert( tr_isDirection( dir ) );
return session->queueEnabled[dir];
}
void
tr_sessionSetQueueStalledMinutes( tr_session * session, int minutes )
{
assert( tr_isSession( session ) );
assert( minutes > 0 );
session->queueStalledMinutes = minutes;
}
void
tr_sessionSetQueueStalledEnabled( tr_session * session, bool is_enabled )
{
assert( tr_isSession( session ) );
assert( tr_isBool( is_enabled ) );
session->stalledEnabled = is_enabled;
}
bool
tr_sessionGetQueueStalledEnabled( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->stalledEnabled;
}
int
tr_sessionGetQueueStalledMinutes( const tr_session * session )
{
assert( tr_isSession( session ) );
return session->queueStalledMinutes;
}
tr_torrent *
tr_sessionGetNextQueuedTorrent( tr_session * session, tr_direction direction )
{
tr_torrent * tor = NULL;
tr_torrent * best_tor = NULL;
int best_position = INT_MAX;
assert( tr_isSession( session ) );
assert( tr_isDirection( direction ) );
while(( tor = tr_torrentNext( session, tor )))
{
int position;
if( !tr_torrentIsQueued( tor ) )
continue;
if( direction != tr_torrentGetQueueDirection( tor ) )
continue;
position = tr_torrentGetQueuePosition( tor );
if( best_position > position ) {
best_position = position;
best_tor = tor;
}
}
return best_tor;
}
int
tr_sessionCountQueueFreeSlots( tr_session * session, tr_direction dir )
{
tr_torrent * tor;
int active_count;
const int max = tr_sessionGetQueueSize( session, dir );
const tr_torrent_activity activity = dir == TR_UP ? TR_STATUS_SEED : TR_STATUS_DOWNLOAD;
if( !tr_sessionGetQueueEnabled( session, dir ) )
return INT_MAX;
tor = NULL;
active_count = 0;
while(( tor = tr_torrentNext( session, tor )))
if( !tr_torrentIsStalled( tor ) )
if( tr_torrentGetActivity( tor ) == activity )
++active_count;
if( active_count >= max )
return 0;
return max - active_count;
}
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