Question

我目前正在尝试将libtorrent设置为使用代理。但是，当我将配置添加到设置包时，我无法从中下载任何对等项。我已验证用户名和密码对我的socks5代理正确。我在下面粘贴了一个最小的代码。我正在使用1.2.0版本的libtorrent-rasterbar。

#include <iostream>
#include <thread>
#include <chrono>
#include <string_view>

#include <libtorrent/session.hpp>
#include <libtorrent/add_torrent_params.hpp>
#include <libtorrent/torrent_handle.hpp>
#include <libtorrent/alert_types.hpp>
#include <libtorrent/magnet_uri.hpp>

static std::string PROXY_HOST = "proxy-nl.privateinternetaccess.com";
static constexpr unsigned short PROXY_PORT = 1080;
static std::string PROXY_UNAME = "omitted";
static std::string PROXY_PASSWD = "omitted";
static constexpr std::string_view IP_TORRENT_LINK = "magnet:?xt=urn:btih:c466035da5de7b04df065831e87ac368456e7fbe&dn=kali-linux-light-2019-1a-armhf-img-xz";


int main(int argc, char const* argv[]) try
{
    lt::settings_pack p;
    p.set_int(lt::settings_pack::alert_mask
        , lt::alert::status_notification
        | lt::alert::error_notification
        | lt::alert::storage_notification
        | lt::alert::dht_notification
    );

    p.set_str(lt::settings_pack::proxy_hostname, PROXY_HOST);
    p.set_int(lt::settings_pack::proxy_port, PROXY_PORT);
    p.set_str(lt::settings_pack::proxy_username, PROXY_UNAME);
    p.set_str(lt::settings_pack::proxy_password, PROXY_PASSWD);
    p.set_int(lt::settings_pack::proxy_type, lt::settings_pack::socks5_pw);

    // p.set_bool(lt::settings_pack::proxy_hostnames, true);
    // p.set_bool(lt::settings_pack::proxy_peer_connections, true);
    // p.set_bool(lt::settings_pack::proxy_tracker_connections, true);

    lt::session ses(p);

    ses.add_dht_node(std::make_pair("router.utorrent.com", 6881));
    ses.add_dht_node(std::make_pair("router.bittorrent.com", 6881));
    ses.add_dht_node(std::make_pair("dht.transmissionbt.com", 6881));
    ses.add_dht_node(std::make_pair("dht.aelitis.com", 6881));


    lt::add_torrent_params atp = lt::parse_magnet_uri(IP_TORRENT_LINK.data());
    atp.save_path = "."; // save in current dir
    lt::torrent_handle h = ses.add_torrent(std::move(atp));

    for (;;) {
        std::vector<lt::alert*> alerts;
        ses.pop_alerts(&alerts);

        for (lt::alert const* a : alerts) {
            std::cout << a->message() << std::endl;
            // if we receive the finished alert or an error, we're done
            if (lt::alert_cast<lt::torrent_finished_alert>(a)) {
                goto done;
            }
            if (lt::alert_cast<lt::torrent_error_alert>(a)) {
                goto done;
            }
        }
        std::this_thread::sleep_for(std::chrono::milliseconds(200));
    }
    done:
    std::cout << "done, shutting down" << std::endl;
}
catch (std::exception& e)
{
    std::cerr << "Error: " << e.what() << std::endl;
}

运行上面的代码时，我的输出是：

successfully listening on [UDP] 0.0.0.0:6881
successfully listening on [TCP] [***IP AND INTERFACE OMITTED***]:6881
successfully listening on [UDP] [***IP AND INTERFACE OMITTED***]:6881
added torrent: kali-linux-light-2019-1a-armhf-img-xz
kali-linux-light-2019-1a-armhf-img-xz added
kali-linux-light-2019-1a-armhf-img-xz: state changed to: dl metadata
DHT bootstrap complete
kali-linux-light-2019-1a-armhf-img-xz resumed
outgoing dht get_peers : c466035da5de7b04df065831e87ac368456e7fbe -> 192.3.31.116:25401
outgoing dht get_peers : c466035da5de7b04df065831e87ac368456e7fbe -> 192.3.31.116:25401

然后就停在那里。但是，如果删除socks5代理，我会得到更多的同龄人并能够下载torrent。

successfully listening on [TCP] 0.0.0.0:6881
successfully listening on [UDP] 0.0.0.0:6881
successfully listening on [TCP] [***IP AND INTERFACE OMITTED***]:6881
successfully listening on [UDP] [***IP AND INTERFACE OMITTED***]:6881
added torrent: kali-linux-light-2019-1a-armhf-img-xz
kali-linux-light-2019-1a-armhf-img-xz added
kali-linux-light-2019-1a-armhf-img-xz: state changed to: dl metadata
external IP received: ***IP OMITTED***
kali-linux-light-2019-1a-armhf-img-xz resumed
outgoing dht get_peers : c466035da5de7b04df065831e87ac368456e7fbe -> 82.221.103.244:6881
outgoing dht get_peers : c466035da5de7b04df065831e87ac368456e7fbe -> 93.100.185.121:38165
outgoing dht get_peers : c466035da5de7b04df065831e87ac368456e7fbe -> 67.215.246.10:6881
outgoing dht get_peers : c466035da5de7b04df065831e87ac368456e7fbe -> 87.98.162.88:6881
outgoing dht get_peers : c466035da5de7b04df065831e87ac368456e7fbe -> 92.140.209.218:54986
outgoing dht get_peers : c466035da5de7b04df065831e87ac368456e7fbe -> 92.12.147.60:44452
outgoing dht get_peers : c466035da5de7b04df065831e87ac368456e7fbe -> 120.29.96.164:56742
outgoing dht get_peers : c466035da5de7b04df065831e87ac368456e7fbe -> 103.75.166.13:25786
outgoing dht get_peers : c466035da5de7b04df065831e87ac368456e7fbe -> 178.21.48.188:38241
outgoing dht get_peers : c466035da5de7b04df065831e87ac368456e7fbe -> 126.224.91.32:16001
*** MORE DHT PEERS FOLLOW ***
kali-linux-light-2019-1a-armhf-img-xz metadata successfully received
kali-linux-light-2019-1a-armhf-img-xz: state changed to: checking (r)
kali-linux-light-2019-1a-armhf-img-xz: state changed to: downloading
kali-linux-light-2019-1a-armhf-img-xz checked

任何帮助将不胜感激。

libtorrent代理没有看到任何dht同行

0 个答案: