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transmission/libtransmission/session.c
Mike Gelfand f6f7bf8227 #4400, #5462: Move random helpers to crypto-utils 
On a way to factoring out OpenSSL support to a standalone file to ease
addition of other crypto libraries support in the future, move helpers
providing random numbers/data generation to crypto-utils.{c,h}. OpenSSL-
related functionality (generation of cryptographically strong random
data) is moved to crypto-utils-openssl.c.

Rename functions to follow currently accepted style:
* tr_cryptoRandBuf -> tr_rand_buffer
* tr_cryptoRandInt -> tr_rand_int
* tr_cryptoWeakRandInt -> tr_rand_int_weak

Fix rare case of invalid value being returned from tr_rand_int. Return
value for abs(INT_MIN) may be undefined and thus negative, and so
tr_rand_int will return negative value which is incorrect (out of
requested and expected range).
2014-12-04 11:27:38 +00:00

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/*
* This file Copyright (C) 2008-2014 Mnemosyne LLC
*
* It may be used under the GNU GPL versions 2 or 3
* or any future license endorsed by Mnemosyne LLC.
*
* $Id$
*/
#include <assert.h>
#include <errno.h> /* ENOENT */
#include <limits.h> /* INT_MAX */
#include <stdlib.h>
#include <string.h> /* memcpy */
#include <signal.h>
#include <sys/types.h> /* umask () */
#include <sys/stat.h> /* umask () */
#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 "blocklist.h"
#include "cache.h"
#include "crypto-utils.h"
#include "fdlimit.h"
#include "file.h"
#include "list.h"
#include "log.h"
#include "net.h"
#include "peer-io.h"
#include "peer-mgr.h"
#include "platform.h" /* tr_lock, tr_getTorrentDir () */
#include "platform-quota.h" /* tr_device_info_free() */
#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 "variant.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_logGetDeepEnabled ()) \
tr_logAddDeep (__FILE__, __LINE__, NULL, __VA_ARGS__); \
} \
while (0)
static tr_port
getRandomPort (tr_session * s)
{
return tr_rand_int_weak (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_rand_buffer (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 (evutil_socket_t 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_logAddDeep (__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:
tr_snprintf (buf, 8, "%d", value);
return buf;
}
}
void
tr_sessionGetDefaultSettings (tr_variant * d)
{
assert (tr_variantIsDict (d));
tr_variantDictReserve (d, 63);
tr_variantDictAddBool (d, TR_KEY_blocklist_enabled, false);
tr_variantDictAddStr (d, TR_KEY_blocklist_url, "http://www.example.com/blocklist");
tr_variantDictAddInt (d, TR_KEY_cache_size_mb, DEFAULT_CACHE_SIZE_MB);
tr_variantDictAddBool (d, TR_KEY_dht_enabled, true);
tr_variantDictAddBool (d, TR_KEY_utp_enabled, true);
tr_variantDictAddBool (d, TR_KEY_lpd_enabled, false);
tr_variantDictAddStr (d, TR_KEY_download_dir, tr_getDefaultDownloadDir ());
tr_variantDictAddInt (d, TR_KEY_speed_limit_down, 100);
tr_variantDictAddBool (d, TR_KEY_speed_limit_down_enabled, false);
tr_variantDictAddInt (d, TR_KEY_encryption, TR_DEFAULT_ENCRYPTION);
tr_variantDictAddInt (d, TR_KEY_idle_seeding_limit, 30);
tr_variantDictAddBool (d, TR_KEY_idle_seeding_limit_enabled, false);
tr_variantDictAddStr (d, TR_KEY_incomplete_dir, tr_getDefaultDownloadDir ());
tr_variantDictAddBool (d, TR_KEY_incomplete_dir_enabled, false);
tr_variantDictAddInt (d, TR_KEY_message_level, TR_LOG_INFO);
tr_variantDictAddInt (d, TR_KEY_download_queue_size, 5);
tr_variantDictAddBool (d, TR_KEY_download_queue_enabled, true);
tr_variantDictAddInt (d, TR_KEY_peer_limit_global, atoi (TR_DEFAULT_PEER_LIMIT_GLOBAL_STR));
tr_variantDictAddInt (d, TR_KEY_peer_limit_per_torrent, atoi (TR_DEFAULT_PEER_LIMIT_TORRENT_STR));
tr_variantDictAddInt (d, TR_KEY_peer_port, atoi (TR_DEFAULT_PEER_PORT_STR));
tr_variantDictAddBool (d, TR_KEY_peer_port_random_on_start, false);
tr_variantDictAddInt (d, TR_KEY_peer_port_random_low, 49152);
tr_variantDictAddInt (d, TR_KEY_peer_port_random_high, 65535);
tr_variantDictAddStr (d, TR_KEY_peer_socket_tos, TR_DEFAULT_PEER_SOCKET_TOS_STR);
tr_variantDictAddBool (d, TR_KEY_pex_enabled, true);
tr_variantDictAddBool (d, TR_KEY_port_forwarding_enabled, true);
tr_variantDictAddInt (d, TR_KEY_preallocation, TR_PREALLOCATE_SPARSE);
tr_variantDictAddBool (d, TR_KEY_prefetch_enabled, DEFAULT_PREFETCH_ENABLED);
tr_variantDictAddInt (d, TR_KEY_peer_id_ttl_hours, 6);
tr_variantDictAddBool (d, TR_KEY_queue_stalled_enabled, true);
tr_variantDictAddInt (d, TR_KEY_queue_stalled_minutes, 30);
tr_variantDictAddReal (d, TR_KEY_ratio_limit, 2.0);
tr_variantDictAddBool (d, TR_KEY_ratio_limit_enabled, false);
tr_variantDictAddBool (d, TR_KEY_rename_partial_files, true);
tr_variantDictAddBool (d, TR_KEY_rpc_authentication_required, false);
tr_variantDictAddStr (d, TR_KEY_rpc_bind_address, "0.0.0.0");
tr_variantDictAddBool (d, TR_KEY_rpc_enabled, false);
tr_variantDictAddStr (d, TR_KEY_rpc_password, "");
tr_variantDictAddStr (d, TR_KEY_rpc_username, "");
tr_variantDictAddStr (d, TR_KEY_rpc_whitelist, TR_DEFAULT_RPC_WHITELIST);
tr_variantDictAddBool (d, TR_KEY_rpc_whitelist_enabled, true);
tr_variantDictAddInt (d, TR_KEY_rpc_port, atoi (TR_DEFAULT_RPC_PORT_STR));
tr_variantDictAddStr (d, TR_KEY_rpc_url, TR_DEFAULT_RPC_URL_STR);
tr_variantDictAddBool (d, TR_KEY_scrape_paused_torrents_enabled, true);
tr_variantDictAddStr (d, TR_KEY_script_torrent_done_filename, "");
tr_variantDictAddBool (d, TR_KEY_script_torrent_done_enabled, false);
tr_variantDictAddInt (d, TR_KEY_seed_queue_size, 10);
tr_variantDictAddBool (d, TR_KEY_seed_queue_enabled, false);
tr_variantDictAddBool (d, TR_KEY_alt_speed_enabled, false);
tr_variantDictAddInt (d, TR_KEY_alt_speed_up, 50); /* half the regular */
tr_variantDictAddInt (d, TR_KEY_alt_speed_down, 50); /* half the regular */
tr_variantDictAddInt (d, TR_KEY_alt_speed_time_begin, 540); /* 9am */
tr_variantDictAddBool (d, TR_KEY_alt_speed_time_enabled, false);
tr_variantDictAddInt (d, TR_KEY_alt_speed_time_end, 1020); /* 5pm */
tr_variantDictAddInt (d, TR_KEY_alt_speed_time_day, TR_SCHED_ALL);
tr_variantDictAddInt (d, TR_KEY_speed_limit_up, 100);
tr_variantDictAddBool (d, TR_KEY_speed_limit_up_enabled, false);
tr_variantDictAddInt (d, TR_KEY_umask, 022);
tr_variantDictAddInt (d, TR_KEY_upload_slots_per_torrent, 14);
tr_variantDictAddStr (d, TR_KEY_bind_address_ipv4, TR_DEFAULT_BIND_ADDRESS_IPV4);
tr_variantDictAddStr (d, TR_KEY_bind_address_ipv6, TR_DEFAULT_BIND_ADDRESS_IPV6);
tr_variantDictAddBool (d, TR_KEY_start_added_torrents, true);
tr_variantDictAddBool (d, TR_KEY_trash_original_torrent_files, false);
}
void
tr_sessionGetSettings (tr_session * s, tr_variant * d)
{
assert (tr_variantIsDict (d));
tr_variantDictReserve (d, 63);
tr_variantDictAddBool (d, TR_KEY_blocklist_enabled, tr_blocklistIsEnabled (s));
tr_variantDictAddStr (d, TR_KEY_blocklist_url, tr_blocklistGetURL (s));
tr_variantDictAddInt (d, TR_KEY_cache_size_mb, tr_sessionGetCacheLimit_MB (s));
tr_variantDictAddBool (d, TR_KEY_dht_enabled, s->isDHTEnabled);
tr_variantDictAddBool (d, TR_KEY_utp_enabled, s->isUTPEnabled);
tr_variantDictAddBool (d, TR_KEY_lpd_enabled, s->isLPDEnabled);
tr_variantDictAddStr (d, TR_KEY_download_dir, tr_sessionGetDownloadDir (s));
tr_variantDictAddInt (d, TR_KEY_download_queue_size, tr_sessionGetQueueSize (s, TR_DOWN));
tr_variantDictAddBool (d, TR_KEY_download_queue_enabled, tr_sessionGetQueueEnabled (s, TR_DOWN));
tr_variantDictAddInt (d, TR_KEY_speed_limit_down, tr_sessionGetSpeedLimit_KBps (s, TR_DOWN));
tr_variantDictAddBool (d, TR_KEY_speed_limit_down_enabled, tr_sessionIsSpeedLimited (s, TR_DOWN));
tr_variantDictAddInt (d, TR_KEY_encryption, s->encryptionMode);
tr_variantDictAddInt (d, TR_KEY_idle_seeding_limit, tr_sessionGetIdleLimit (s));
tr_variantDictAddBool (d, TR_KEY_idle_seeding_limit_enabled, tr_sessionIsIdleLimited (s));
tr_variantDictAddStr (d, TR_KEY_incomplete_dir, tr_sessionGetIncompleteDir (s));
tr_variantDictAddBool (d, TR_KEY_incomplete_dir_enabled, tr_sessionIsIncompleteDirEnabled (s));
tr_variantDictAddInt (d, TR_KEY_message_level, tr_logGetLevel ());
tr_variantDictAddInt (d, TR_KEY_peer_limit_global, s->peerLimit);
tr_variantDictAddInt (d, TR_KEY_peer_limit_per_torrent, s->peerLimitPerTorrent);
tr_variantDictAddInt (d, TR_KEY_peer_port, tr_sessionGetPeerPort (s));
tr_variantDictAddBool (d, TR_KEY_peer_port_random_on_start, s->isPortRandom);
tr_variantDictAddInt (d, TR_KEY_peer_port_random_low, s->randomPortLow);
tr_variantDictAddInt (d, TR_KEY_peer_port_random_high, s->randomPortHigh);
tr_variantDictAddStr (d, TR_KEY_peer_socket_tos, format_tos (s->peerSocketTOS));
tr_variantDictAddStr (d, TR_KEY_peer_congestion_algorithm, s->peer_congestion_algorithm);
tr_variantDictAddBool (d, TR_KEY_pex_enabled, s->isPexEnabled);
tr_variantDictAddBool (d, TR_KEY_port_forwarding_enabled, tr_sessionIsPortForwardingEnabled (s));
tr_variantDictAddInt (d, TR_KEY_preallocation, s->preallocationMode);
tr_variantDictAddInt (d, TR_KEY_prefetch_enabled, s->isPrefetchEnabled);
tr_variantDictAddInt (d, TR_KEY_peer_id_ttl_hours, s->peer_id_ttl_hours);
tr_variantDictAddBool (d, TR_KEY_queue_stalled_enabled, tr_sessionGetQueueStalledEnabled (s));
tr_variantDictAddInt (d, TR_KEY_queue_stalled_minutes, tr_sessionGetQueueStalledMinutes (s));
tr_variantDictAddReal (d, TR_KEY_ratio_limit, s->desiredRatio);
tr_variantDictAddBool (d, TR_KEY_ratio_limit_enabled, s->isRatioLimited);
tr_variantDictAddBool (d, TR_KEY_rename_partial_files, tr_sessionIsIncompleteFileNamingEnabled (s));
tr_variantDictAddBool (d, TR_KEY_rpc_authentication_required, tr_sessionIsRPCPasswordEnabled (s));
tr_variantDictAddStr (d, TR_KEY_rpc_bind_address, tr_sessionGetRPCBindAddress (s));
tr_variantDictAddBool (d, TR_KEY_rpc_enabled, tr_sessionIsRPCEnabled (s));
tr_variantDictAddStr (d, TR_KEY_rpc_password, tr_sessionGetRPCPassword (s));
tr_variantDictAddInt (d, TR_KEY_rpc_port, tr_sessionGetRPCPort (s));
tr_variantDictAddStr (d, TR_KEY_rpc_url, tr_sessionGetRPCUrl (s));
tr_variantDictAddStr (d, TR_KEY_rpc_username, tr_sessionGetRPCUsername (s));
tr_variantDictAddStr (d, TR_KEY_rpc_whitelist, tr_sessionGetRPCWhitelist (s));
tr_variantDictAddBool (d, TR_KEY_rpc_whitelist_enabled, tr_sessionGetRPCWhitelistEnabled (s));
tr_variantDictAddBool (d, TR_KEY_scrape_paused_torrents_enabled, s->scrapePausedTorrents);
tr_variantDictAddBool (d, TR_KEY_script_torrent_done_enabled, tr_sessionIsTorrentDoneScriptEnabled (s));
tr_variantDictAddStr (d, TR_KEY_script_torrent_done_filename, tr_sessionGetTorrentDoneScript (s));
tr_variantDictAddInt (d, TR_KEY_seed_queue_size, tr_sessionGetQueueSize (s, TR_UP));
tr_variantDictAddBool (d, TR_KEY_seed_queue_enabled, tr_sessionGetQueueEnabled (s, TR_UP));
tr_variantDictAddBool (d, TR_KEY_alt_speed_enabled, tr_sessionUsesAltSpeed (s));
tr_variantDictAddInt (d, TR_KEY_alt_speed_up, tr_sessionGetAltSpeed_KBps (s, TR_UP));
tr_variantDictAddInt (d, TR_KEY_alt_speed_down, tr_sessionGetAltSpeed_KBps (s, TR_DOWN));
tr_variantDictAddInt (d, TR_KEY_alt_speed_time_begin, tr_sessionGetAltSpeedBegin (s));
tr_variantDictAddBool (d, TR_KEY_alt_speed_time_enabled, tr_sessionUsesAltSpeedTime (s));
tr_variantDictAddInt (d, TR_KEY_alt_speed_time_end, tr_sessionGetAltSpeedEnd (s));
tr_variantDictAddInt (d, TR_KEY_alt_speed_time_day, tr_sessionGetAltSpeedDay (s));
tr_variantDictAddInt (d, TR_KEY_speed_limit_up, tr_sessionGetSpeedLimit_KBps (s, TR_UP));
tr_variantDictAddBool (d, TR_KEY_speed_limit_up_enabled, tr_sessionIsSpeedLimited (s, TR_UP));
tr_variantDictAddInt (d, TR_KEY_umask, s->umask);
tr_variantDictAddInt (d, TR_KEY_upload_slots_per_torrent, s->uploadSlotsPerTorrent);
tr_variantDictAddStr (d, TR_KEY_bind_address_ipv4, tr_address_to_string (&s->public_ipv4->addr));
tr_variantDictAddStr (d, TR_KEY_bind_address_ipv6, tr_address_to_string (&s->public_ipv6->addr));
tr_variantDictAddBool (d, TR_KEY_start_added_torrents, !tr_sessionGetPaused (s));
tr_variantDictAddBool (d, TR_KEY_trash_original_torrent_files, tr_sessionGetDeleteSource (s));
}
bool
tr_sessionLoadSettings (tr_variant * dict, const char * configDir, const char * appName)
{
int err = 0;
char * filename;
tr_variant fileSettings;
tr_variant sessionDefaults;
tr_variant tmp;
bool success = false;
assert (tr_variantIsDict (dict));
/* 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_variantInitDict (&sessionDefaults, 0);
tr_sessionGetDefaultSettings (&sessionDefaults);
tr_variantMergeDicts (&sessionDefaults, dict);
tmp = *dict;
*dict = 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_variantFromFile (&fileSettings, TR_VARIANT_FMT_JSON, filename);
if (!err)
{
tr_variantMergeDicts (dict, &fileSettings);
tr_variantFree (&fileSettings);
}
/* cleanup */
tr_variantFree (&sessionDefaults);
tr_free (filename);
success = (err==0) || (err==ENOENT);
return success;
}
void
tr_sessionSaveSettings (tr_session * session,
const char * configDir,
const tr_variant * clientSettings)
{
tr_variant settings;
char * filename = tr_buildPath (configDir, "settings.json", NULL);
assert (tr_variantIsDict (clientSettings));
tr_variantInitDict (&settings, 0);
/* the existing file settings are the fallback values */
{
tr_variant fileSettings;
const int err = tr_variantFromFile (&fileSettings, TR_VARIANT_FMT_JSON, filename);
if (!err)
{
tr_variantMergeDicts (&settings, &fileSettings);
tr_variantFree (&fileSettings);
}
}
/* the client's settings override the file settings */
tr_variantMergeDicts (&settings, clientSettings);
/* the session's true values override the file & client settings */
{
tr_variant sessionSettings;
tr_variantInitDict (&sessionSettings, 0);
tr_sessionGetSettings (session, &sessionSettings);
tr_variantMergeDicts (&settings, &sessionSettings);
tr_variantFree (&sessionSettings);
}
/* save the result */
tr_variantToFile (&settings, TR_VARIANT_FMT_JSON, filename);
/* cleanup */
tr_free (filename);
tr_variantFree (&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 (evutil_socket_t foo UNUSED, short bar UNUSED, void * vsession)
{
tr_torrent * tor = NULL;
tr_session * session = vsession;
if (tr_cacheFlushDone (session->cache))
tr_logAddError ("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
{
bool done;
bool messageQueuingEnabled;
tr_session * session;
const char * configDir;
tr_variant * clientSettings;
};
tr_session *
tr_sessionInit (const char * tag,
const char * configDir,
bool messageQueuingEnabled,
tr_variant * clientSettings)
{
int64_t i;
tr_session * session;
struct init_data data;
assert (tr_variantIsDict (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_variantInitList (&session->removedTorrents, 0);
/* nice to start logging at the very beginning */
if (tr_variantDictFindInt (clientSettings, TR_KEY_message_level, &i))
tr_logSetLevel (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 (50);
return session;
}
static void turtleCheckClock (tr_session * s, struct tr_turtle_info * t);
static void
onNowTimer (evutil_socket_t 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 */
tr_gettimeofday (&tv);
usec = 1000000 - tv.tv_usec;
if (usec > max)
usec = max;
if (usec < min)
usec = min;
tr_timerAdd (session->nowTimer, 0, usec);
/* fprintf (stderr, "time %"TR_PRIuSIZE" sec, %"TR_PRIuSIZE" microsec\n", (size_t)tr_time (), (size_t)tv.tv_usec); */
}
static void loadBlocklists (tr_session * session);
static void
tr_sessionInitImpl (void * vdata)
{
tr_variant settings;
struct init_data * data = vdata;
tr_variant * clientSettings = data->clientSettings;
tr_session * session = data->session;
assert (tr_amInEventThread (session));
assert (tr_variantIsDict (clientSettings));
dbgmsg ("tr_sessionInit: the session's top-level bandwidth object is %p",
(void*)&session->bandwidth);
tr_variantInitDict (&settings, 0);
tr_sessionGetDefaultSettings (&settings);
tr_variantMergeDicts (&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_logSetQueueEnabled (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_sys_dir_create (filename, TR_SYS_DIR_CREATE_PARENTS, 0777, NULL);
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_logAddInfo (_("%s %s started"), TR_NAME, LONG_VERSION_STRING);
tr_statsInit (session);
tr_sessionSet (session, &settings);
tr_udpInit (session);
if (session->isLPDEnabled)
tr_lpdInit (session, &session->public_ipv4->addr);
/* cleanup */
tr_variantFree (&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_variant * settings = data->clientSettings;
struct tr_turtle_info * turtle = &session->turtle;
assert (tr_isSession (session));
assert (tr_variantIsDict (settings));
assert (tr_amInEventThread (session));
if (tr_variantDictFindInt (settings, TR_KEY_message_level, &i))
tr_logSetLevel (i);
if (tr_variantDictFindInt (settings, TR_KEY_umask, &i))
{
session->umask = (mode_t)i;
umask (session->umask);
}
/* misc features */
if (tr_variantDictFindInt (settings, TR_KEY_cache_size_mb, &i))
tr_sessionSetCacheLimit_MB (session, i);
if (tr_variantDictFindInt (settings, TR_KEY_peer_limit_per_torrent, &i))
tr_sessionSetPeerLimitPerTorrent (session, i);
if (tr_variantDictFindBool (settings, TR_KEY_pex_enabled, &boolVal))
tr_sessionSetPexEnabled (session, boolVal);
if (tr_variantDictFindBool (settings, TR_KEY_dht_enabled, &boolVal))
tr_sessionSetDHTEnabled (session, boolVal);
if (tr_variantDictFindBool (settings, TR_KEY_utp_enabled, &boolVal))
tr_sessionSetUTPEnabled (session, boolVal);
if (tr_variantDictFindBool (settings, TR_KEY_lpd_enabled, &boolVal))
tr_sessionSetLPDEnabled (session, boolVal);
if (tr_variantDictFindInt (settings, TR_KEY_encryption, &i))
tr_sessionSetEncryption (session, i);
if (tr_variantDictFindStr (settings, TR_KEY_peer_socket_tos, &str, NULL))
session->peerSocketTOS = parse_tos (str);
if (tr_variantDictFindStr (settings, TR_KEY_peer_congestion_algorithm, &str, NULL))
session->peer_congestion_algorithm = tr_strdup (str);
else
session->peer_congestion_algorithm = tr_strdup ("");
if (tr_variantDictFindBool (settings, TR_KEY_blocklist_enabled, &boolVal))
tr_blocklistSetEnabled (session, boolVal);
if (tr_variantDictFindStr (settings, TR_KEY_blocklist_url, &str, NULL))
tr_blocklistSetURL (session, str);
if (tr_variantDictFindBool (settings, TR_KEY_start_added_torrents, &boolVal))
tr_sessionSetPaused (session, !boolVal);
if (tr_variantDictFindBool (settings, TR_KEY_trash_original_torrent_files, &boolVal))
tr_sessionSetDeleteSource (session, boolVal);
if (tr_variantDictFindInt (settings, TR_KEY_peer_id_ttl_hours, &i))
session->peer_id_ttl_hours = i;
/* torrent queues */
if (tr_variantDictFindInt (settings, TR_KEY_queue_stalled_minutes, &i))
tr_sessionSetQueueStalledMinutes (session, i);
if (tr_variantDictFindBool (settings, TR_KEY_queue_stalled_enabled, &boolVal))
tr_sessionSetQueueStalledEnabled (session, boolVal);
if (tr_variantDictFindInt (settings, TR_KEY_download_queue_size, &i))
tr_sessionSetQueueSize (session, TR_DOWN, i);
if (tr_variantDictFindBool (settings, TR_KEY_download_queue_enabled, &boolVal))
tr_sessionSetQueueEnabled (session, TR_DOWN, boolVal);
if (tr_variantDictFindInt (settings, TR_KEY_seed_queue_size, &i))
tr_sessionSetQueueSize (session, TR_UP, i);
if (tr_variantDictFindBool (settings, TR_KEY_seed_queue_enabled, &boolVal))
tr_sessionSetQueueEnabled (session, TR_UP, boolVal);
/* files and directories */
if (tr_variantDictFindBool (settings, TR_KEY_prefetch_enabled, &boolVal))
session->isPrefetchEnabled = boolVal;
if (tr_variantDictFindInt (settings, TR_KEY_preallocation, &i))
session->preallocationMode = i;
if (tr_variantDictFindStr (settings, TR_KEY_download_dir, &str, NULL))
tr_sessionSetDownloadDir (session, str);
if (tr_variantDictFindStr (settings, TR_KEY_incomplete_dir, &str, NULL))
tr_sessionSetIncompleteDir (session, str);
if (tr_variantDictFindBool (settings, TR_KEY_incomplete_dir_enabled, &boolVal))
tr_sessionSetIncompleteDirEnabled (session, boolVal);
if (tr_variantDictFindBool (settings, TR_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);
tr_variantDictFindStr (settings, TR_KEY_bind_address_ipv4, &str, NULL);
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));
tr_variantDictFindStr (settings, TR_KEY_bind_address_ipv6, &str, NULL);
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_variantDictFindInt (settings, TR_KEY_peer_port_random_low, &i))
session->randomPortLow = i;
if (tr_variantDictFindInt (settings, TR_KEY_peer_port_random_high, &i))
session->randomPortHigh = i;
if (tr_variantDictFindBool (settings, TR_KEY_peer_port_random_on_start, &boolVal))
tr_sessionSetPeerPortRandomOnStart (session, boolVal);
if (!tr_variantDictFindInt (settings, TR_KEY_peer_port, &i))
i = session->private_peer_port;
setPeerPort (session, boolVal ? getRandomPort (session) : i);
if (tr_variantDictFindBool (settings, TR_KEY_port_forwarding_enabled, &boolVal))
tr_sessionSetPortForwardingEnabled (session, boolVal);
if (tr_variantDictFindInt (settings, TR_KEY_peer_limit_global, &i))
session->peerLimit = i;
/**
**/
if (tr_variantDictFindInt (settings, TR_KEY_upload_slots_per_torrent, &i))
session->uploadSlotsPerTorrent = i;
if (tr_variantDictFindInt (settings, TR_KEY_speed_limit_up, &i))
tr_sessionSetSpeedLimit_KBps (session, TR_UP, i);
if (tr_variantDictFindBool (settings, TR_KEY_speed_limit_up_enabled, &boolVal))
tr_sessionLimitSpeed (session, TR_UP, boolVal);
if (tr_variantDictFindInt (settings, TR_KEY_speed_limit_down, &i))
tr_sessionSetSpeedLimit_KBps (session, TR_DOWN, i);
if (tr_variantDictFindBool (settings, TR_KEY_speed_limit_down_enabled, &boolVal))
tr_sessionLimitSpeed (session, TR_DOWN, boolVal);
if (tr_variantDictFindReal (settings, TR_KEY_ratio_limit, &d))
tr_sessionSetRatioLimit (session, d);
if (tr_variantDictFindBool (settings, TR_KEY_ratio_limit_enabled, &boolVal))
tr_sessionSetRatioLimited (session, boolVal);
if (tr_variantDictFindInt (settings, TR_KEY_idle_seeding_limit, &i))
tr_sessionSetIdleLimit (session, i);
if (tr_variantDictFindBool (settings, TR_KEY_idle_seeding_limit_enabled, &boolVal))
tr_sessionSetIdleLimited (session, boolVal);
/**
*** Turtle Mode
**/
/* update the turtle mode's fields */
if (tr_variantDictFindInt (settings, TR_KEY_alt_speed_up, &i))
turtle->speedLimit_Bps[TR_UP] = toSpeedBytes (i);
if (tr_variantDictFindInt (settings, TR_KEY_alt_speed_down, &i))
turtle->speedLimit_Bps[TR_DOWN] = toSpeedBytes (i);
if (tr_variantDictFindInt (settings, TR_KEY_alt_speed_time_begin, &i))
turtle->beginMinute = i;
if (tr_variantDictFindInt (settings, TR_KEY_alt_speed_time_end, &i))
turtle->endMinute = i;
if (tr_variantDictFindInt (settings, TR_KEY_alt_speed_time_day, &i))
turtle->days = i;
if (tr_variantDictFindBool (settings, TR_KEY_alt_speed_time_enabled, &boolVal))
turtle->isClockEnabled = boolVal;
if (tr_variantDictFindBool (settings, TR_KEY_alt_speed_enabled, &boolVal))
turtle->isEnabled = boolVal;
turtleBootstrap (session, turtle);
/**
*** Scripts
**/
if (tr_variantDictFindBool (settings, TR_KEY_script_torrent_done_enabled, &boolVal))
tr_sessionSetTorrentDoneScriptEnabled (session, boolVal);
if (tr_variantDictFindStr (settings, TR_KEY_script_torrent_done_filename, &str, NULL))
tr_sessionSetTorrentDoneScript (session, str);
if (tr_variantDictFindBool (settings, TR_KEY_scrape_paused_torrents_enabled, &boolVal))
session->scrapePausedTorrents = boolVal;
data->done = true;
}
void
tr_sessionSet (tr_session * session, tr_variant * 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)
{
struct tr_device_info * info = NULL;
assert (tr_isSession (session));
if (dir != NULL)
info = tr_device_info_create (dir);
tr_device_info_free (session->downloadDir);
session->downloadDir = info;
}
const char *
tr_sessionGetDownloadDir (const tr_session * session)
{
const char * dir = NULL;
assert (tr_isSession (session));
if ((session != NULL) && (session->downloadDir != NULL))
dir = session->downloadDir->path;
return dir;
}
int64_t
tr_sessionGetDirFreeSpace (tr_session * session, const char * dir)
{
int64_t free_space;
if (!tr_strcmp0 (dir, tr_sessionGetDownloadDir (session)))
free_space = tr_device_info_get_free_space (session->downloadDir);
else
free_space = tr_getDirFreeSpace (dir);
return free_space;
}
/***
****
***/
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);
}
/***
**** Peer Port
***/
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)
{
bool 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_logAddInfo ("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_logAddDebug ("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;
}
tr_torrent **
tr_sessionGetTorrents (tr_session * session, int * setme_n)
{
int i;
int n;
tr_torrent ** torrents;
tr_torrent * tor;
assert (tr_isSession (session));
assert (setme_n != NULL);
n = tr_sessionCountTorrents (session);
*setme_n = n;
torrents = tr_new (tr_torrent *, n);
tor = NULL;
for (i=0; i<n; ++i)
torrents[i] = tor = tr_torrentNext (session, tor);
return torrents;
}
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)
{
int i, n;
tr_torrent ** torrents;
tr_session * session = vsession;
assert (tr_isSession (session));
session->isClosing = true;
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. */
torrents = tr_sessionGetTorrents (session, &n);
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 %"TR_PRIuSIZE", deadline is %"TR_PRIuSIZE, (void*)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 %"TR_PRIuSIZE" deadline %"TR_PRIuSIZE,
(void*)session->shared, (void*)session->announcer, (size_t)time (NULL), (size_t)deadline);
tr_wait_msec (50);
}
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 %"TR_PRIuSIZE" deadline %"TR_PRIuSIZE, (size_t)time (NULL), (size_t)deadline);
tr_wait_msec (100);
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_variantFree (&session->removedTorrents);
tr_bandwidthDestruct (&session->bandwidth);
tr_bitfieldDestruct (&session->turtle.minutes);
tr_lockFree (session->lock);
if (session->metainfoLookup)
{
tr_variantFree (session->metainfoLookup);
tr_free (session->metainfoLookup);
}
tr_device_info_free (session->downloadDir);
tr_free (session->torrentDoneScript);
tr_free (session->tag);
tr_free (session->configDir);
tr_free (session->resumeDir);
tr_free (session->torrentDir);
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;
tr_sys_path_info info;
tr_sys_dir_t 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 (tr_sys_path_get_info (dirname, 0, &info, NULL) &&
info.type == TR_SYS_PATH_IS_DIRECTORY &&
(odir = tr_sys_dir_open (dirname, NULL)) != TR_BAD_SYS_DIR)
{
const char * name;
while ((name = tr_sys_dir_read_name (odir, NULL)) != NULL)
{
if (tr_str_has_suffix (name, ".torrent"))
{
tr_torrent * tor;
char * path = tr_buildPath (dirname, name, NULL);
tr_ctorSetMetainfoFromFile (data->ctor, path);
if ((tor = tr_torrentNew (data->ctor, NULL, NULL)))
{
tr_list_prepend (&list, tor);
++n;
}
tr_free (path);
}
}
tr_sys_dir_close (odir, NULL);
}
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_logAddInfo (_("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));
assert (tr_isBool (enabled));
session->isPexEnabled = enabled;
}
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 != session->isDHTEnabled)
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 != session->isUTPEnabled)
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 != session->isLPDEnabled)
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)
{
tr_sys_dir_t odir;
char * dirname;
const char * name;
tr_list * blocklists = NULL;
tr_ptrArray loadme = TR_PTR_ARRAY_INIT;
const bool isEnabled = session->isBlocklistEnabled;
/* walk the blocklist directory... */
dirname = tr_buildPath (session->configDir, "blocklists", NULL);
odir = tr_sys_dir_open (dirname, NULL);
if (odir == TR_BAD_SYS_DIR)
{
tr_free (dirname);
return;
}
while ((name = tr_sys_dir_read_name (odir, NULL)) != NULL)
{
char * path;
char * load = NULL;
if (name[0] == '.') /* ignore dotfiles */
continue;
path = tr_buildPath (dirname, name, NULL);
if (tr_stringEndsWith (path, ".bin"))
{
load = tr_strdup (path);
}
else
{
char * binname;
char * basename;
tr_sys_path_info path_info;
tr_sys_path_info binname_info;
basename = tr_sys_path_basename (name, NULL);
binname = tr_strdup_printf ("%s" TR_PATH_DELIMITER_STR "%s.bin", dirname, basename);
if (!tr_sys_path_get_info (binname, 0, &binname_info, NULL)) /* create it */
{
tr_blocklistFile * b = tr_blocklistFileNew (binname, isEnabled);
const int n = tr_blocklistFileSetContent (b, path);
if (n > 0)
load = tr_strdup (binname);
tr_blocklistFileFree (b);
}
else if (tr_sys_path_get_info (path, 0, &path_info, NULL) &&
path_info.last_modified_at >= binname_info.last_modified_at) /* update it */
{
char * old;
tr_blocklistFile * b;
old = tr_strdup_printf ("%s.old", binname);
tr_sys_path_remove (old, NULL);
tr_sys_path_rename (binname, old, NULL);
b = tr_blocklistFileNew (binname, isEnabled);
if (tr_blocklistFileSetContent (b, path) > 0)
{
tr_sys_path_remove (old, NULL);
}
else
{
tr_sys_path_remove (binname, NULL);
tr_sys_path_rename (old, binname, NULL);
}
tr_blocklistFileFree (b);
tr_free (old);
}
tr_free (basename);
tr_free (binname);
}
if (load != NULL)
{
if (tr_ptrArrayFindSorted (&loadme, load, (PtrArrayCompareFunc)strcmp) == NULL)
tr_ptrArrayInsertSorted (&loadme, load, (PtrArrayCompareFunc)strcmp);
else
tr_free (load);
}
tr_free (path);
}
if (!tr_ptrArrayEmpty (&loadme))
{
int i;
const int n = tr_ptrArraySize (&loadme);
const char ** paths = (const char **) tr_ptrArrayBase (&loadme);
for (i=0; i<n; ++i)
tr_list_append (&blocklists, tr_blocklistFileNew (paths[i], isEnabled));
}
/* cleanup */
tr_sys_dir_close (odir, NULL);
tr_free (dirname);
tr_ptrArrayDestruct (&loadme, (PtrArrayForeachFunc)tr_free);
session->blocklists = blocklists;
}
static void
closeBlocklists (tr_session * session)
{
tr_list_free (&session->blocklists, (TrListForeachFunc)tr_blocklistFileFree);
}
void
tr_sessionReloadBlocklists (tr_session * session)
{
closeBlocklists (session);
loadBlocklists (session);
tr_peerMgrOnBlocklistChanged (session->peerMgr);
}
int
tr_blocklistGetRuleCount (const tr_session * session)
{
tr_list * l;
int n = 0;
assert (tr_isSession (session));
for (l = session->blocklists; l; l = l->next)
n += tr_blocklistFileGetRuleCount (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));
assert (tr_isBool (isEnabled));
session->isBlocklistEnabled = isEnabled;
for (l=session->blocklists; l!=NULL; l=l->next)
tr_blocklistFileSetEnabled (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_blocklistFile * 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_blocklistFileGetFilename (l->data), defaultName))
b = l->data;
if (!b)
{
char * path = tr_buildPath (session->configDir, "blocklists", defaultName, NULL);
b = tr_blocklistFileNew (path, session->isBlocklistEnabled);
tr_list_append (&session->blocklists, b);
tr_free (path);
}
ruleCount = tr_blocklistFileSetContent (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_blocklistFileHasAddress (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)
{
tr_sys_path_info info;
const char * dirname = tr_getTorrentDir (session);
tr_sys_dir_t odir;
tr_ctor * ctor = NULL;
tr_variant * lookup;
int n = 0;
assert (tr_isSession (session));
/* walk through the directory and find the mappings */
lookup = tr_new0 (tr_variant, 1);
tr_variantInitDict (lookup, 0);
ctor = tr_ctorNew (session);
tr_ctorSetSave (ctor, false); /* since we already have them */
if (tr_sys_path_get_info (dirname, 0, &info, NULL) &&
info.type == TR_SYS_PATH_IS_DIRECTORY &&
(odir = tr_sys_dir_open (dirname, NULL)) != TR_BAD_SYS_DIR)
{
const char * name;
while ((name = tr_sys_dir_read_name (odir, NULL)) != NULL)
{
if (tr_str_has_suffix (name, ".torrent"))
{
tr_info inf;
char * path = tr_buildPath (dirname, name, NULL);
tr_ctorSetMetainfoFromFile (ctor, path);
if (!tr_torrentParse (ctor, &inf))
{
++n;
tr_variantDictAddStr (lookup, tr_quark_new(inf.hashString,-1), path);
}
tr_free (path);
}
}
tr_sys_dir_close (odir, NULL);
}
tr_ctorFree (ctor);
session->metainfoLookup = lookup;
tr_logAddDebug ("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_variantDictFindStr (session->metainfoLookup, tr_quark_new(hashString,-1), &filename, NULL);
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_variantDictAddStr (session->metainfoLookup, tr_quark_new(hashString,-1), 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;
}
struct TorrentAndPosition
{
tr_torrent * tor;
int position;
};
static int
compareTorrentAndPositions (const void * va, const void * vb)
{
int ret;
const struct TorrentAndPosition * a = va;
const struct TorrentAndPosition * b = vb;
if (a->position > b->position)
ret = 1;
else if (a->position < b->position)
ret = -1;
else
ret = 0;
return ret;
}
void
tr_sessionGetNextQueuedTorrents (tr_session * session,
tr_direction direction,
size_t num_wanted,
tr_ptrArray * setme)
{
size_t i;
size_t n;
tr_torrent * tor;
struct TorrentAndPosition * candidates;
assert (tr_isSession (session));
assert (tr_isDirection (direction));
/* build an array of the candidates */
n = tr_sessionCountTorrents (session);
candidates = tr_new (struct TorrentAndPosition, n);
i = 0;
tor = NULL;
while ((tor = tr_torrentNext (session, tor)))
{
if (!tr_torrentIsQueued (tor))
continue;
if (direction != tr_torrentGetQueueDirection (tor))
continue;
candidates[i].tor = tor;
candidates[i].position = tr_torrentGetQueuePosition (tor);
++i;
}
/* find the best n candidates */
if (num_wanted > i)
num_wanted = i;
else if (num_wanted < i)
tr_quickfindFirstK (candidates, i,
sizeof(struct TorrentAndPosition),
compareTorrentAndPositions, num_wanted);
/* add them to the return array */
for (i=0; i<num_wanted; ++i)
tr_ptrArrayAppend (setme, candidates[i].tor);
/* cleanup */
tr_free (candidates);
}
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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