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whatcd-Ocelot/worker.cpp
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Git 972c8d6659 Ocelot 1.0
2015-01-27 17:36:18 +01:00

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#include <iostream>
#include <string>
#include <map>
#include <sstream>
#include <list>
#include <vector>
#include <set>
#include <algorithm>
#include <mutex>
#include <thread>
#include "ocelot.h"
#include "config.h"
#include "db.h"
#include "worker.h"
#include "misc_functions.h"
#include "site_comm.h"
#include "response.h"
#include "report.h"
#include "user.h"
//---------- Worker - does stuff with input
worker::worker(config * conf_obj, torrent_list &torrents, user_list &users, std::vector<std::string> &_whitelist, mysql * db_obj, site_comm * sc) :
conf(conf_obj), db(db_obj), s_comm(sc), torrents_list(torrents), users_list(users), whitelist(_whitelist), status(OPEN), reaper_active(false)
{
load_config(conf);
}
void worker::load_config(config * conf) {
announce_interval = conf->get_uint("announce_interval");
del_reason_lifetime = conf->get_uint("del_reason_lifetime");
peers_timeout = conf->get_uint("peers_timeout");
numwant_limit = conf->get_uint("numwant_limit");
keepalive_enabled = conf->get_uint("keepalive_timeout") != 0;
site_password = conf->get_str("site_password");
report_password = conf->get_str("report_password");
}
void worker::reload_config(config * conf) {
load_config(conf);
}
void worker::reload_lists() {
status = PAUSED;
db->load_torrents(torrents_list);
db->load_users(users_list);
db->load_whitelist(whitelist);
status = OPEN;
}
bool worker::shutdown() {
if (status == OPEN) {
status = CLOSING;
std::cout << "closing tracker... press Ctrl-C again to terminate" << std::endl;
return false;
} else if (status == CLOSING) {
std::cout << "shutting down uncleanly" << std::endl;
return true;
} else {
return false;
}
}
std::string worker::work(const std::string &input, std::string &ip, client_opts_t &client_opts) {
unsigned int input_length = input.length();
//---------- Parse request - ugly but fast. Using substr exploded.
if (input_length < 60) { // Way too short to be anything useful
return error("GET string too short", client_opts);
}
size_t pos = 5; // skip 'GET /'
// Get the passkey
std::string passkey;
passkey.reserve(32);
if (input[37] != '/') {
return error("Malformed announce", client_opts);
}
for (; pos < 37; pos++) {
passkey.push_back(input[pos]);
}
pos = 38;
// Get the action
enum action_t {
INVALID = 0, ANNOUNCE, SCRAPE, UPDATE, REPORT
};
action_t action = INVALID;
switch (input[pos]) {
case 'a':
stats.announcements++;
action = ANNOUNCE;
pos += 8;
break;
case 's':
stats.scrapes++;
action = SCRAPE;
pos += 6;
break;
case 'u':
action = UPDATE;
pos += 6;
break;
case 'r':
action = REPORT;
pos += 6;
break;
}
if (input[pos] != '?') {
// No parameters given. Probably means we're not talking to a torrent client
client_opts.html = true;
return response("Nothing to see here", client_opts);
}
// Parse URL params
std::list<std::string> infohashes; // For scrape only
params_type params;
std::string key;
std::string value;
bool parsing_key = true; // true = key, false = value
++pos; // Skip the '?'
for (; pos < input_length; ++pos) {
if (input[pos] == '=') {
parsing_key = false;
} else if (input[pos] == '&' || input[pos] == ' ') {
parsing_key = true;
if (action == SCRAPE && key == "info_hash") {
infohashes.push_back(value);
} else {
params[key] = value;
}
key.clear();
value.clear();
if (input[pos] == ' ') {
break;
}
} else {
if (parsing_key) {
key.push_back(input[pos]);
} else {
value.push_back(input[pos]);
}
}
}
++pos;
if (input.compare(pos, 5, "HTTP/") != 0) {
return error("Malformed HTTP request", client_opts);
}
std::string http_version;
pos += 5;
while (input[pos] != '\r' && input[pos] != '\n') {
http_version.push_back(input[pos]);
++pos;
}
++pos; // skip line break - should probably be += 2, but just in case a client doesn't send \r
// Parse headers
params_type headers;
parsing_key = true;
bool found_data = false;
for (; pos < input_length; ++pos) {
if (input[pos] == ':') {
parsing_key = false;
++pos; // skip space after :
} else if (input[pos] == '\n' || input[pos] == '\r') {
parsing_key = true;
if (found_data) {
found_data = false; // dodge for getting around \r\n or just \n
std::transform(key.begin(), key.end(), key.begin(), ::tolower);
headers[key] = value;
key.clear();
value.clear();
}
} else {
found_data = true;
if (parsing_key) {
key.push_back(input[pos]);
} else {
value.push_back(input[pos]);
}
}
}
if (keepalive_enabled) {
auto hdr_http_close = headers.find("connection");
if (hdr_http_close == headers.end()) {
client_opts.http_close = (http_version == "1.0");
} else {
client_opts.http_close = (hdr_http_close->second != "Keep-Alive");
}
} else {
client_opts.http_close = true;
}
if (status != OPEN) {
return error("The tracker is temporarily unavailable.", client_opts);
}
if (action == INVALID) {
return error("Invalid action", client_opts);
}
if (action == UPDATE) {
if (passkey == site_password) {
return update(params, client_opts);
} else {
return error("Authentication failure", client_opts);
}
}
if (action == REPORT) {
if (passkey == report_password) {
std::lock_guard<std::mutex> ul_lock(db->user_list_mutex);
return report(params, users_list, client_opts);
} else {
return error("Authentication failure", client_opts);
}
}
// Either a scrape or an announce
std::unique_lock<std::mutex> ul_lock(db->user_list_mutex);
auto user_it = users_list.find(passkey);
if (user_it == users_list.end()) {
return error("Passkey not found", client_opts);
}
user_ptr u = user_it->second;
ul_lock.unlock();
if (action == ANNOUNCE) {
// Let's translate the infohash into something nice
// info_hash is a url encoded (hex) base 20 number
std::string info_hash_decoded = hex_decode(params["info_hash"]);
std::lock_guard<std::mutex> tl_lock(db->torrent_list_mutex);
auto tor = torrents_list.find(info_hash_decoded);
if (tor == torrents_list.end()) {
std::lock_guard<std::mutex> dr_lock(del_reasons_lock);
auto msg = del_reasons.find(info_hash_decoded);
if (msg != del_reasons.end()) {
if (msg->second.reason != -1) {
return error("Unregistered torrent: " + get_del_reason(msg->second.reason), client_opts);
} else {
return error("Unregistered torrent", client_opts);
}
} else {
return error("Unregistered torrent", client_opts);
}
}
return announce(input, tor->second, u, params, headers, ip, client_opts);
} else {
return scrape(infohashes, headers, client_opts);
}
}
std::string worker::announce(const std::string &input, torrent &tor, user_ptr &u, params_type &params, params_type &headers, std::string &ip, client_opts_t &client_opts) {
cur_time = time(NULL);
if (params["compact"] != "1") {
return error("Your client does not support compact announces", client_opts);
}
int64_t left = std::max((int64_t)0, strtoint64(params["left"]));
int64_t uploaded = std::max((int64_t)0, strtoint64(params["uploaded"]));
int64_t downloaded = std::max((int64_t)0, strtoint64(params["downloaded"]));
int64_t corrupt = std::max((int64_t)0, strtoint64(params["corrupt"]));
int snatched = 0; // This is the value that gets sent to the database on a snatch
int active = 1; // This is the value that marks a peer as active/inactive in the database
bool inserted = false; // If we insert the peer as opposed to update
bool update_torrent = false; // Whether or not we should update the torrent in the DB
bool completed_torrent = false; // Whether or not the current announcement is a snatch
bool stopped_torrent = false; // Was the torrent just stopped?
bool expire_token = false; // Whether or not to expire a token after torrent completion
bool peer_changed = false; // Whether or not the peer is new or has changed since the last announcement
bool invalid_ip = false;
bool inc_l = false, inc_s = false, dec_l = false, dec_s = false;
userid_t userid = u->get_id();
params_type::const_iterator peer_id_iterator = params.find("peer_id");
if (peer_id_iterator == params.end()) {
return error("No peer ID", client_opts);
}
const std::string peer_id = hex_decode(peer_id_iterator->second);
if (peer_id.length() != 20) {
return error("Invalid peer ID", client_opts);
}
std::unique_lock<std::mutex> wl_lock(db->whitelist_mutex);
if (whitelist.size() > 0) {
bool found = false; // Found client in whitelist?
for (unsigned int i = 0; i < whitelist.size(); i++) {
if (peer_id.compare(0, whitelist[i].length(), whitelist[i]) == 0) {
found = true;
break;
}
}
if (!found) {
return error("Your client is not on the whitelist", client_opts);
}
}
wl_lock.unlock();
std::stringstream peer_key_stream;
peer_key_stream << peer_id[12 + (tor.id & 7)] // "Randomize" the element order in the peer map by prefixing with a peer id byte
<< userid // Include user id in the key to lower chance of peer id collisions
<< peer_id;
const std::string peer_key(peer_key_stream.str());
if (params["event"] == "completed") {
// Don't update <snatched> here as we may decide to use other conditions later on
completed_torrent = (left == 0); // Sanity check just to be extra safe
} else if (params["event"] == "stopped") {
stopped_torrent = true;
peer_changed = true;
update_torrent = true;
active = 0;
}
peer * p;
peer_list::iterator peer_it;
// Insert/find the peer in the torrent list
if (left > 0) {
peer_it = tor.leechers.find(peer_key);
if (peer_it == tor.leechers.end()) {
// We could search the seed list as well, but the peer reaper will sort things out eventually
peer_it = add_peer(tor.leechers, peer_key);
inserted = true;
inc_l = true;
}
} else if (completed_torrent) {
peer_it = tor.leechers.find(peer_key);
if (peer_it == tor.leechers.end()) {
peer_it = tor.seeders.find(peer_key);
if (peer_it == tor.seeders.end()) {
peer_it = add_peer(tor.seeders, peer_key);
inserted = true;
inc_s = true;
} else {
completed_torrent = false;
}
} else if (tor.seeders.find(peer_key) != tor.seeders.end()) {
// If the peer exists in both peer lists, just decrement the seed count.
// Should be cheaper than searching the seed list in the left > 0 case
dec_s = true;
}
} else {
peer_it = tor.seeders.find(peer_key);
if (peer_it == tor.seeders.end()) {
peer_it = tor.leechers.find(peer_key);
if (peer_it == tor.leechers.end()) {
peer_it = add_peer(tor.seeders, peer_key);
inserted = true;
} else {
p = &peer_it->second;
std::pair<peer_list::iterator, bool> insert
= tor.seeders.insert(std::pair<std::string, peer>(peer_key, *p));
tor.leechers.erase(peer_it);
peer_it = insert.first;
peer_changed = true;
dec_l = true;
}
inc_s = true;
}
}
p = &peer_it->second;
int64_t upspeed = 0;
int64_t downspeed = 0;
if (inserted || params["event"] == "started") {
// New peer on this torrent (maybe)
update_torrent = true;
if (inserted) {
// If this was an existing peer, the user pointer will be corrected later
p->user = u;
}
p->first_announced = cur_time;
p->last_announced = 0;
p->uploaded = uploaded;
p->downloaded = downloaded;
p->corrupt = corrupt;
p->announces = 1;
peer_changed = true;
} else if (uploaded < p->uploaded || downloaded < p->downloaded) {
p->announces++;
p->uploaded = uploaded;
p->downloaded = downloaded;
peer_changed = true;
} else {
int64_t uploaded_change = 0;
int64_t downloaded_change = 0;
int64_t corrupt_change = 0;
p->announces++;
if (uploaded != p->uploaded) {
uploaded_change = uploaded - p->uploaded;
p->uploaded = uploaded;
}
if (downloaded != p->downloaded) {
downloaded_change = downloaded - p->downloaded;
p->downloaded = downloaded;
}
if (corrupt != p->corrupt) {
corrupt_change = corrupt - p->corrupt;
p->corrupt = corrupt;
tor.balance -= corrupt_change;
update_torrent = true;
}
peer_changed = peer_changed || uploaded_change || downloaded_change || corrupt_change;
if (uploaded_change || downloaded_change) {
tor.balance += uploaded_change;
tor.balance -= downloaded_change;
update_torrent = true;
if (cur_time > p->last_announced) {
upspeed = uploaded_change / (cur_time - p->last_announced);
downspeed = downloaded_change / (cur_time - p->last_announced);
}
auto sit = tor.tokened_users.find(userid);
if (tor.free_torrent == NEUTRAL) {
downloaded_change = 0;
uploaded_change = 0;
} else if (tor.free_torrent == FREE || sit != tor.tokened_users.end()) {
if (sit != tor.tokened_users.end()) {
expire_token = true;
std::stringstream record;
record << '(' << userid << ',' << tor.id << ',' << downloaded_change << ')';
std::string record_str = record.str();
db->record_token(record_str);
}
downloaded_change = 0;
}
if (uploaded_change || downloaded_change) {
std::stringstream record;
record << '(' << userid << ',' << uploaded_change << ',' << downloaded_change << ')';
std::string record_str = record.str();
db->record_user(record_str);
}
}
}
p->left = left;
params_type::const_iterator param_ip = params.find("ip");
if (param_ip != params.end()) {
ip = param_ip->second;
} else if ((param_ip = params.find("ipv4")) != params.end()) {
ip = param_ip->second;
} else {
auto head_itr = headers.find("x-forwarded-for");
if (head_itr != headers.end()) {
size_t ip_end_pos = head_itr->second.find(',');
if (ip_end_pos != std::string::npos) {
ip = head_itr->second.substr(0, ip_end_pos);
} else {
ip = head_itr->second;
}
}
}
uint16_t port = strtoint32(params["port"]) & 0xFFFF;
// Generate compact ip/port string
if (inserted || port != p->port || ip != p->ip) {
p->port = port;
p->ip = ip;
p->ip_port = "";
char x = 0;
for (size_t pos = 0, end = ip.length(); pos < end; pos++) {
if (ip[pos] == '.') {
p->ip_port.push_back(x);
x = 0;
continue;
} else if (!isdigit(ip[pos])) {
invalid_ip = true;
break;
}
x = x * 10 + ip[pos] - '0';
}
if (!invalid_ip) {
p->ip_port.push_back(x);
p->ip_port.push_back(port >> 8);
p->ip_port.push_back(port & 0xFF);
}
if (p->ip_port.length() != 6) {
p->ip_port.clear();
invalid_ip = true;
}
p->invalid_ip = invalid_ip;
} else {
invalid_ip = p->invalid_ip;
}
// Update the peer
p->last_announced = cur_time;
p->visible = peer_is_visible(u, p);
// Add peer data to the database
std::stringstream record;
if (peer_changed) {
record << '(' << userid << ',' << tor.id << ',' << active << ',' << uploaded << ',' << downloaded << ',' << upspeed << ',' << downspeed << ',' << left << ',' << corrupt << ',' << (cur_time - p->first_announced) << ',' << p->announces << ',';
std::string record_str = record.str();
std::string record_ip;
if (u->is_protected()) {
record_ip = "";
} else {
record_ip = ip;
}
db->record_peer(record_str, record_ip, peer_id, headers["user-agent"]);
} else {
record << '(' << userid << ',' << tor.id << ',' << (cur_time - p->first_announced) << ',' << p->announces << ',';
std::string record_str = record.str();
db->record_peer(record_str, peer_id);
}
// Select peers!
uint32_t numwant;
params_type::const_iterator param_numwant = params.find("numwant");
if (param_numwant == params.end()) {
numwant = numwant_limit;
} else {
numwant = std::min((int32_t)numwant_limit, strtoint32(param_numwant->second));
}
if (stopped_torrent) {
numwant = 0;
if (left > 0) {
dec_l = true;
} else {
dec_s = true;
}
} else if (completed_torrent) {
snatched = 1;
update_torrent = true;
tor.completed++;
std::stringstream record;
std::string record_ip;
if (u->is_protected()) {
record_ip = "";
} else {
record_ip = ip;
}
record << '(' << userid << ',' << tor.id << ',' << cur_time;
std::string record_str = record.str();
db->record_snatch(record_str, record_ip);
// User is a seeder now!
if (!inserted) {
std::pair<peer_list::iterator, bool> insert
= tor.seeders.insert(std::pair<std::string, peer>(peer_key, *p));
tor.leechers.erase(peer_it);
peer_it = insert.first;
p = &peer_it->second;
dec_l = inc_s = true;
}
if (expire_token) {
s_comm->expire_token(tor.id, userid);
tor.tokened_users.erase(userid);
}
} else if (!u->can_leech() && left > 0) {
numwant = 0;
}
std::string peers;
if (numwant > 0) {
peers.reserve(numwant*6);
unsigned int found_peers = 0;
if (left > 0) { // Show seeders to leechers first
if (tor.seeders.size() > 0) {
// We do this complicated stuff to cycle through the seeder list, so all seeders will get shown to leechers
// Find out where to begin in the seeder list
peer_list::const_iterator i;
if (tor.last_selected_seeder == "") {
i = tor.seeders.begin();
} else {
i = tor.seeders.find(tor.last_selected_seeder);
if (i == tor.seeders.end() || ++i == tor.seeders.end()) {
i = tor.seeders.begin();
}
}
// Find out where to end in the seeder list
peer_list::const_iterator end;
if (i == tor.seeders.begin()) {
end = tor.seeders.end();
} else {
end = i;
if (--end == tor.seeders.begin()) {
++end;
++i;
}
}
// Add seeders
while (i != end && found_peers < numwant) {
if (i == tor.seeders.end()) {
i = tor.seeders.begin();
}
// Don't show users themselves
if (i->second.user->is_deleted() || i->second.user->get_id() == userid || !i->second.visible) {
++i;
continue;
}
peers.append(i->second.ip_port);
found_peers++;
tor.last_selected_seeder = i->first;
++i;
}
}
if (found_peers < numwant && tor.leechers.size() > 1) {
for (peer_list::const_iterator i = tor.leechers.begin(); i != tor.leechers.end() && found_peers < numwant; ++i) {
// Don't show users themselves or leech disabled users
if (i->second.user->is_deleted() || i->second.ip_port == p->ip_port || i->second.user->get_id() == userid || !i->second.visible) {
continue;
}
found_peers++;
peers.append(i->second.ip_port);
}
}
} else if (tor.leechers.size() > 0) { // User is a seeder, and we have leechers!
for (peer_list::const_iterator i = tor.leechers.begin(); i != tor.leechers.end() && found_peers < numwant; ++i) {
// Don't show users themselves or leech disabled users
if (i->second.user->get_id() == userid || !i->second.visible) {
continue;
}
found_peers++;
peers.append(i->second.ip_port);
}
}
}
// Update the stats
stats.succ_announcements++;
if (dec_l || dec_s || inc_l || inc_s) {
if (inc_l) {
p->user->incr_leeching();
stats.leechers++;
}
if (inc_s) {
p->user->incr_seeding();
stats.seeders++;
}
if (dec_l) {
p->user->decr_leeching();
stats.leechers--;
}
if (dec_s) {
p->user->decr_seeding();
stats.seeders--;
}
}
// Correct the stats for the old user if the peer's user link has changed
if (p->user != u) {
if (!stopped_torrent) {
if (left > 0) {
u->incr_leeching();
p->user->decr_leeching();
} else {
u->incr_seeding();
p->user->decr_seeding();
}
}
p->user = u;
}
// Delete peers as late as possible to prevent access problems
if (stopped_torrent) {
if (left > 0) {
tor.leechers.erase(peer_it);
} else {
tor.seeders.erase(peer_it);
}
}
// Putting this after the peer deletion gives us accurate swarm sizes
if (update_torrent || tor.last_flushed + 3600 < cur_time) {
tor.last_flushed = cur_time;
std::stringstream record;
record << '(' << tor.id << ',' << tor.seeders.size() << ',' << tor.leechers.size() << ',' << snatched << ',' << tor.balance << ')';
std::string record_str = record.str();
db->record_torrent(record_str);
}
if (!u->can_leech() && left > 0) {
return error("Access denied, leeching forbidden", client_opts);
}
std::string output = "d8:completei";
output.reserve(350);
output += inttostr(tor.seeders.size());
output += "e10:downloadedi";
output += inttostr(tor.completed);
output += "e10:incompletei";
output += inttostr(tor.leechers.size());
output += "e8:intervali";
output += inttostr(announce_interval + std::min((size_t)600, tor.seeders.size())); // ensure a more even distribution of announces/second
output += "e12:min intervali";
output += inttostr(announce_interval);
output += "e5:peers";
if (peers.length() == 0) {
output += "0:";
} else {
output += inttostr(peers.length());
output += ":";
output += peers;
}
if (invalid_ip) {
output += warning("Illegal character found in IP address. IPv6 is not supported");
}
output += 'e';
/* gzip compression actually makes announce returns larger from our
* testing. Feel free to enable this here if you'd like but be aware of
* possibly inflated return size
*/
/*if (headers["accept-encoding"].find("gzip") != std::string::npos) {
client_opts.gzip = true;
}*/
return response(output, client_opts);
}
std::string worker::scrape(const std::list<std::string> &infohashes, params_type &headers, client_opts_t &client_opts) {
std::string output = "d5:filesd";
for (std::list<std::string>::const_iterator i = infohashes.begin(); i != infohashes.end(); ++i) {
std::string infohash = *i;
infohash = hex_decode(infohash);
torrent_list::iterator tor = torrents_list.find(infohash);
if (tor == torrents_list.end()) {
continue;
}
torrent *t = &(tor->second);
output += inttostr(infohash.length());
output += ':';
output += infohash;
output += "d8:completei";
output += inttostr(t->seeders.size());
output += "e10:incompletei";
output += inttostr(t->leechers.size());
output += "e10:downloadedi";
output += inttostr(t->completed);
output += "ee";
}
output += "ee";
if (headers["accept-encoding"].find("gzip") != std::string::npos) {
client_opts.gzip = true;
}
return response(output, client_opts);
}
//TODO: Restrict to local IPs
std::string worker::update(params_type &params, client_opts_t &client_opts) {
if (params["action"] == "change_passkey") {
std::string oldpasskey = params["oldpasskey"];
std::string newpasskey = params["newpasskey"];
std::lock_guard<std::mutex> ul_lock(db->user_list_mutex);
auto u = users_list.find(oldpasskey);
if (u == users_list.end()) {
std::cout << "No user with passkey " << oldpasskey << " exists when attempting to change passkey to " << newpasskey << std::endl;
} else {
users_list[newpasskey] = u->second;
users_list.erase(oldpasskey);
std::cout << "Changed passkey from " << oldpasskey << " to " << newpasskey << " for user " << u->second->get_id() << std::endl;
}
} else if (params["action"] == "add_torrent") {
torrent *t;
std::string info_hash = params["info_hash"];
info_hash = hex_decode(info_hash);
std::lock_guard<std::mutex> tl_lock(db->torrent_list_mutex);
auto i = torrents_list.find(info_hash);
if (i == torrents_list.end()) {
t = &torrents_list[info_hash];
t->id = strtoint32(params["id"]);
t->balance = 0;
t->completed = 0;
t->last_selected_seeder = "";
} else {
t = &i->second;
}
if (params["freetorrent"] == "0") {
t->free_torrent = NORMAL;
} else if (params["freetorrent"] == "1") {
t->free_torrent = FREE;
} else {
t->free_torrent = NEUTRAL;
}
std::cout << "Added torrent " << t->id << ". FL: " << t->free_torrent << " " << params["freetorrent"] << std::endl;
} else if (params["action"] == "update_torrent") {
std::string info_hash = params["info_hash"];
info_hash = hex_decode(info_hash);
freetype fl;
if (params["freetorrent"] == "0") {
fl = NORMAL;
} else if (params["freetorrent"] == "1") {
fl = FREE;
} else {
fl = NEUTRAL;
}
std::lock_guard<std::mutex> tl_lock(db->torrent_list_mutex);
auto torrent_it = torrents_list.find(info_hash);
if (torrent_it != torrents_list.end()) {
torrent_it->second.free_torrent = fl;
std::cout << "Updated torrent " << torrent_it->second.id << " to FL " << fl << std::endl;
} else {
std::cout << "Failed to find torrent " << info_hash << " to FL " << fl << std::endl;
}
} else if (params["action"] == "update_torrents") {
// Each decoded infohash is exactly 20 characters long.
std::string info_hashes = params["info_hashes"];
info_hashes = hex_decode(info_hashes);
freetype fl;
if (params["freetorrent"] == "0") {
fl = NORMAL;
} else if (params["freetorrent"] == "1") {
fl = FREE;
} else {
fl = NEUTRAL;
}
std::lock_guard<std::mutex> tl_lock(db->torrent_list_mutex);
for (unsigned int pos = 0; pos < info_hashes.length(); pos += 20) {
std::string info_hash = info_hashes.substr(pos, 20);
auto torrent_it = torrents_list.find(info_hash);
if (torrent_it != torrents_list.end()) {
torrent_it->second.free_torrent = fl;
std::cout << "Updated torrent " << torrent_it->second.id << " to FL " << fl << std::endl;
} else {
std::cout << "Failed to find torrent " << info_hash << " to FL " << fl << std::endl;
}
}
} else if (params["action"] == "add_token") {
std::string info_hash = hex_decode(params["info_hash"]);
int userid = atoi(params["userid"].c_str());
std::lock_guard<std::mutex> tl_lock(db->torrent_list_mutex);
auto torrent_it = torrents_list.find(info_hash);
if (torrent_it != torrents_list.end()) {
torrent_it->second.tokened_users.insert(userid);
} else {
std::cout << "Failed to find torrent to add a token for user " << userid << std::endl;
}
} else if (params["action"] == "remove_token") {
std::string info_hash = hex_decode(params["info_hash"]);
int userid = atoi(params["userid"].c_str());
std::lock_guard<std::mutex> tl_lock(db->torrent_list_mutex);
auto torrent_it = torrents_list.find(info_hash);
if (torrent_it != torrents_list.end()) {
torrent_it->second.tokened_users.erase(userid);
} else {
std::cout << "Failed to find torrent " << info_hash << " to remove token for user " << userid << std::endl;
}
} else if (params["action"] == "delete_torrent") {
std::string info_hash = params["info_hash"];
info_hash = hex_decode(info_hash);
int reason = -1;
auto reason_it = params.find("reason");
if (reason_it != params.end()) {
reason = atoi(params["reason"].c_str());
}
std::lock_guard<std::mutex> tl_lock(db->torrent_list_mutex);
auto torrent_it = torrents_list.find(info_hash);
if (torrent_it != torrents_list.end()) {
std::cout << "Deleting torrent " << torrent_it->second.id << " for the reason '" << get_del_reason(reason) << "'" << std::endl;
stats.leechers -= torrent_it->second.leechers.size();
stats.seeders -= torrent_it->second.seeders.size();
for (auto &p: torrent_it->second.leechers) {
p.second.user->decr_leeching();
}
for (auto &p: torrent_it->second.seeders) {
p.second.user->decr_seeding();
}
std::lock_guard<std::mutex> dr_lock(del_reasons_lock);
del_message msg;
msg.reason = reason;
msg.time = time(NULL);
del_reasons[info_hash] = msg;
torrents_list.erase(torrent_it);
} else {
std::cout << "Failed to find torrent " << bintohex(info_hash) << " to delete " << std::endl;
}
} else if (params["action"] == "add_user") {
std::string passkey = params["passkey"];
userid_t userid = strtoint32(params["id"]);
std::lock_guard<std::mutex> ul_lock(db->user_list_mutex);
auto u = users_list.find(passkey);
if (u == users_list.end()) {
bool protect_ip = params["visible"] == "0";
user_ptr tmp_user = std::make_shared<user>(userid, true, protect_ip);
users_list.insert(std::pair<std::string, user_ptr>(passkey, tmp_user));
std::cout << "Added user " << passkey << " with id " << userid << std::endl;
} else {
std::cout << "Tried to add already known user " << passkey << " with id " << userid << std::endl;
u->second->set_deleted(false);
}
} else if (params["action"] == "remove_user") {
std::string passkey = params["passkey"];
std::lock_guard<std::mutex> ul_lock(db->user_list_mutex);
auto u = users_list.find(passkey);
if (u != users_list.end()) {
std::cout << "Removed user " << passkey << " with id " << u->second->get_id() << std::endl;
u->second->set_deleted(true);
users_list.erase(u);
}
} else if (params["action"] == "remove_users") {
// Each passkey is exactly 32 characters long.
std::string passkeys = params["passkeys"];
std::lock_guard<std::mutex> ul_lock(db->user_list_mutex);
for (unsigned int pos = 0; pos < passkeys.length(); pos += 32) {
std::string passkey = passkeys.substr(pos, 32);
auto u = users_list.find(passkey);
if (u != users_list.end()) {
std::cout << "Removed user " << passkey << std::endl;
u->second->set_deleted(true);
users_list.erase(passkey);
}
}
} else if (params["action"] == "update_user") {
std::string passkey = params["passkey"];
bool can_leech = true;
bool protect_ip = false;
if (params["can_leech"] == "0") {
can_leech = false;
}
if (params["visible"] == "0") {
protect_ip = true;
}
std::lock_guard<std::mutex> ul_lock(db->user_list_mutex);
user_list::iterator i = users_list.find(passkey);
if (i == users_list.end()) {
std::cout << "No user with passkey " << passkey << " found when attempting to change leeching status!" << std::endl;
} else {
i->second->set_protected(protect_ip);
i->second->set_leechstatus(can_leech);
std::cout << "Updated user " << passkey << std::endl;
}
} else if (params["action"] == "add_whitelist") {
std::string peer_id = params["peer_id"];
std::lock_guard<std::mutex> wl_lock(db->whitelist_mutex);
whitelist.push_back(peer_id);
std::cout << "Whitelisted " << peer_id << std::endl;
} else if (params["action"] == "remove_whitelist") {
std::string peer_id = params["peer_id"];
std::lock_guard<std::mutex> wl_lock(db->whitelist_mutex);
for (unsigned int i = 0; i < whitelist.size(); i++) {
if (whitelist[i].compare(peer_id) == 0) {
whitelist.erase(whitelist.begin() + i);
break;
}
}
std::cout << "De-whitelisted " << peer_id << std::endl;
} else if (params["action"] == "edit_whitelist") {
std::string new_peer_id = params["new_peer_id"];
std::string old_peer_id = params["old_peer_id"];
std::lock_guard<std::mutex> wl_lock(db->whitelist_mutex);
for (unsigned int i = 0; i < whitelist.size(); i++) {
if (whitelist[i].compare(old_peer_id) == 0) {
whitelist.erase(whitelist.begin() + i);
break;
}
}
whitelist.push_back(new_peer_id);
std::cout << "Edited whitelist item from " << old_peer_id << " to " << new_peer_id << std::endl;
} else if (params["action"] == "update_announce_interval") {
const std::string interval = params["new_announce_interval"];
conf->set("announce_interval", interval);
announce_interval = conf->get_uint("announce_interval");
std::cout << "Edited announce interval to " << announce_interval << std::endl;
} else if (params["action"] == "info_torrent") {
std::string info_hash_hex = params["info_hash"];
std::string info_hash = hex_decode(info_hash_hex);
std::cout << "Info for torrent '" << info_hash_hex << "'" << std::endl;
std::lock_guard<std::mutex> tl_lock(db->torrent_list_mutex);
auto torrent_it = torrents_list.find(info_hash);
if (torrent_it != torrents_list.end()) {
std::cout << "Torrent " << torrent_it->second.id
<< ", freetorrent = " << torrent_it->second.free_torrent << std::endl;
} else {
std::cout << "Failed to find torrent " << info_hash_hex << std::endl;
}
}
return response("success", client_opts);
}
peer_list::iterator worker::add_peer(peer_list &peer_list, const std::string &peer_key) {
peer new_peer;
auto it = peer_list.insert(std::pair<std::string, peer>(peer_key, new_peer));
return it.first;
}
void worker::start_reaper() {
if (!reaper_active) {
std::thread thread(&worker::do_start_reaper, this);
thread.detach();
}
}
void worker::do_start_reaper() {
reaper_active = true;
reap_peers();
reap_del_reasons();
reaper_active = false;
}
void worker::reap_peers() {
std::cout << "Starting peer reaper" << std::endl;
cur_time = time(NULL);
unsigned int reaped_l = 0, reaped_s = 0;
unsigned int cleared_torrents = 0;
for (auto t = torrents_list.begin(); t != torrents_list.end(); ++t) {
bool reaped_this = false; // True if at least one peer was deleted from the current torrent
auto p = t->second.leechers.begin();
peer_list::iterator del_p;
while (p != t->second.leechers.end()) {
if (p->second.last_announced + peers_timeout < cur_time) {
std::lock_guard<std::mutex> tl_lock(db->torrent_list_mutex);
del_p = p++;
del_p->second.user->decr_leeching();
t->second.leechers.erase(del_p);
reaped_this = true;
reaped_l++;
} else {
++p;
}
}
p = t->second.seeders.begin();
while (p != t->second.seeders.end()) {
if (p->second.last_announced + peers_timeout < cur_time) {
std::lock_guard<std::mutex> tl_lock(db->torrent_list_mutex);
del_p = p++;
del_p->second.user->decr_seeding();
t->second.seeders.erase(del_p);
reaped_this = true;
reaped_s++;
} else {
++p;
}
}
if (reaped_this && t->second.seeders.empty() && t->second.leechers.empty()) {
std::stringstream record;
record << '(' << t->second.id << ",0,0,0," << t->second.balance << ')';
std::string record_str = record.str();
db->record_torrent(record_str);
cleared_torrents++;
}
}
if (reaped_l || reaped_s) {
stats.leechers -= reaped_l;
stats.seeders -= reaped_s;
}
std::cout << "Reaped " << reaped_l << " leechers and " << reaped_s << " seeders. Reset " << cleared_torrents << " torrents" << std::endl;
}
void worker::reap_del_reasons()
{
std::cout << "Starting del reason reaper" << std::endl;
time_t max_time = time(NULL) - del_reason_lifetime;
auto it = del_reasons.begin();
unsigned int reaped = 0;
for (; it != del_reasons.end(); ) {
if (it->second.time <= max_time) {
auto del_it = it++;
std::lock_guard<std::mutex> dr_lock(del_reasons_lock);
del_reasons.erase(del_it);
reaped++;
continue;
}
++it;
}
std::cout << "Reaped " << reaped << " del reasons" << std::endl;
}
std::string worker::get_del_reason(int code)
{
switch (code) {
case DUPE:
return "Dupe";
break;
case TRUMP:
return "Trump";
break;
case BAD_FILE_NAMES:
return "Bad File Names";
break;
case BAD_FOLDER_NAMES:
return "Bad Folder Names";
break;
case BAD_TAGS:
return "Bad Tags";
break;
case BAD_FORMAT:
return "Disallowed Format";
break;
case DISCS_MISSING:
return "Discs Missing";
break;
case DISCOGRAPHY:
return "Discography";
break;
case EDITED_LOG:
return "Edited Log";
break;
case INACCURATE_BITRATE:
return "Inaccurate Bitrate";
break;
case LOW_BITRATE:
return "Low Bitrate";
break;
case MUTT_RIP:
return "Mutt Rip";
break;
case BAD_SOURCE:
return "Disallowed Source";
break;
case ENCODE_ERRORS:
return "Encode Errors";
break;
case BANNED:
return "Specifically Banned";
break;
case TRACKS_MISSING:
return "Tracks Missing";
break;
case TRANSCODE:
return "Transcode";
break;
case CASSETTE:
return "Unapproved Cassette";
break;
case UNSPLIT_ALBUM:
return "Unsplit Album";
break;
case USER_COMPILATION:
return "User Compilation";
break;
case WRONG_FORMAT:
return "Wrong Format";
break;
case WRONG_MEDIA:
return "Wrong Media";
break;
case AUDIENCE:
return "Audience Recording";
break;
default:
return "";
break;
}
}
/* Peers should be invisible if they are a leecher without
download privs or their IP is invalid */
bool worker::peer_is_visible(user_ptr &u, peer *p) {
return (p->left == 0 || u->can_leech()) && !p->invalid_ip;
}
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