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rtorrent/src/command_network.cc
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#include "config.h"
#include <functional>
#include <cstdio>
#include <unistd.h>
#include <torrent/torrent.h>
#include <torrent/rate.h>
#include <torrent/data/file_manager.h>
#include <torrent/download/resource_manager.h>
#include <torrent/net/http_stack.h>
#include <torrent/net/socket_address.h>
#include <torrent/runtime/client_config.h>
#include <torrent/runtime/network_config.h>
#include <torrent/runtime/network_manager.h>
#include <torrent/runtime/proxy_manager.h>
#include <torrent/runtime/runtime.h>
#include <torrent/runtime/socket_manager.h>
#include <torrent/tracker/tracker.h>
#include <torrent/utils/log.h>
#include <torrent/utils/option_strings.h>
#include "encryption_config.h"
#include "globals.h"
#include "control.h"
#include "command_helpers.h"
#include "core/download.h"
#include "core/manager.h"
#include "rpc/scgi.h"
#include "ui/root.h"
#include "rpc/parse.h"
#include "rpc/parse_commands.h"
#ifdef HAVE_SYSTEMD
#include <sys/socket.h>
#include <systemd/sd-daemon.h>
#endif
torrent::Object
apply_tos(const torrent::Object::string_type& arg) {
rpc::command_base::value_type value;
if (!rpc::parse_whole_value_nothrow(arg.c_str(), &value, 16, 1))
value = torrent::option_find_string(torrent::OPTION_IP_TOS, arg.c_str());
torrent::runtime::network_config()->set_priority(value);
return torrent::Object();
}
void
initialize_rpc_handlers() {
rpc::rpc.initialize_handlers();
unsigned int count = 0;
for (const auto& [name, cmd] : rpc::commands) {
if (!(cmd.m_flags & rpc::CommandMap::flag_public_rpc))
continue;
rpc::rpc.insert_command(name.c_str(), cmd.m_parm, cmd.m_doc);
++count;
}
lt_log_print(torrent::LOG_RPC_EVENTS, "RPC manager initialized with %u functions.", count);
}
torrent::Object
apply_scgi(const std::string& arg, int type) {
if (scgi_thread::scgi() != nullptr)
throw torrent::input_error("SCGI already enabled.");
initialize_rpc_handlers();
torrent::sa_unique_ptr sa;
auto scgi = std::make_unique<rpc::SCgi>();
try {
int port{};
char dummy{};
char address[1024];
std::string path;
switch (type) {
case 1:
if (std::sscanf(arg.c_str(), ":%i%c", &port, &dummy) == 1) {
sa = torrent::sa_make_inet();
lt_log_print(torrent::LOG_RPC_EVENTS, "SCGI socket is open to any address and is a security risk");
} else if (std::sscanf(arg.c_str(), "%1023[^:]:%i%c", address, &port, &dummy) == 2 ||
std::sscanf(arg.c_str(), "[%64[^]]]:%i%c", address, &port, &dummy) == 2) { // [xx::xx]:port format
try {
sa = torrent::sa_copy(torrent::sa_lookup_address(address, AF_UNSPEC).get());
} catch (torrent::input_error& e) {
throw torrent::input_error("Could not bind address: " + std::string(e.what()));
}
lt_log_print(torrent::LOG_RPC_EVENTS, "SCGI socket is bound to an address and might be a security risk");
} else {
throw torrent::input_error("Could not parse address.");
}
if (port <= 0 || port >= (1 << 16))
throw torrent::input_error("Invalid port number.");
torrent::sap_set_port(sa, port);
scgi->open_port(sa.get(), torrent::sap_length(sa), rpc::call_command_value("network.scgi.dont_route"));
break;
case 2:
default:
path = expand_path(arg);
unlink(path.c_str());
scgi->open_named(path);
break;
}
} catch (torrent::local_error& e) {
throw torrent::input_error(e.what());
}
scgi_thread::set_scgi(scgi.release());
return torrent::Object();
}
torrent::Object
apply_scgi_systemd() {
#ifdef HAVE_SYSTEMD
if (scgi_thread::scgi() != nullptr)
throw torrent::input_error("SCGI already enabled.");
int n = sd_listen_fds(0);
if (n < 1)
throw torrent::input_error("No systemd socket(s) provided (sd_listen_fds returned " +
std::to_string(n) + ").");
// Iterate over all provided fds. Use the first listening stream socket;
// close the rest. The systemd docs say unused fds should be closed.
int selected_fd = -1;
for (int i = 0; i < n; i++) {
int fd = SD_LISTEN_FDS_START + i;
if (selected_fd != -1) {
::close(fd);
continue;
}
auto err = sd_is_socket(fd, AF_UNSPEC, SOCK_STREAM, 1);
if (err < 0) {
// Safe to ignore errors here - we just skip it and move on.
::close(fd);
continue;
}
if (err == 0) {
// Not the socket we're looking for.
::close(fd);
continue;
}
selected_fd = fd;
}
if (selected_fd == -1)
throw torrent::input_error("No listening stream socket found among systemd-provided fds.");
initialize_rpc_handlers();
rpc::SCgi* scgi = new rpc::SCgi;
scgi->open_fd(selected_fd);
scgi_thread::set_scgi(scgi);
return torrent::Object();
#else
throw torrent::input_error("Systemd SCGI endpoint is not supported.");
#endif
}
torrent::Object
apply_xmlrpc_dialect(const std::string& arg) {
int value;
if (arg == "i8")
value = rpc::XmlRpc::dialect_i8;
else if (arg == "apache")
value = rpc::XmlRpc::dialect_apache;
else if (arg == "generic")
value = rpc::XmlRpc::dialect_generic;
else
value = -1;
rpc::rpc.set_dialect(value);
return torrent::Object();
}
void
initialize_command_network() {
auto file_manager = torrent::file_manager();
auto http_stack = torrent::net_thread::http_stack();
auto nw_config = torrent::runtime::network_config();
CMD_ANY ("network.listen.port", [](auto, auto) { return torrent::runtime::network_manager()->listen_port(); });
CMD_ANY_VALUE_V ("network.listen.port.set", [](auto, auto& value) { return torrent::runtime::network_manager()->set_listen_port(value); });
CMD_ANY ("network.listen.port.random", [](auto, auto) { return torrent::runtime::client_config()->listen_port_random(); });
CMD_ANY_VALUE_V ("network.listen.port.random.set", [](auto, auto& value) { return torrent::runtime::client_config()->set_listen_port_random(value); });
CMD_ANY ("network.listen.port.range", [](auto, auto) { return listen_port_range(); });
CMD_ANY_STRING_V("network.listen.port.range.set", [](auto, auto& value) { return set_listen_port_range(value); });
CMD_ANY ("network.listen.backlog", [](auto, auto) { return torrent::runtime::network_config()->listen_backlog(); });
CMD_ANY_VALUE_V ("network.listen.backlog.set", [](auto, auto& value) { return torrent::runtime::network_config()->set_listen_backlog(value); });
CMD_VAR_BOOL ("protocol.pex", true);
encryption_config::initialize_commands();
CMD_VAR_STRING ("protocol.connection.leech", "leech");
CMD_VAR_STRING ("protocol.connection.seed", "seed");
CMD_VAR_STRING ("protocol.choke_heuristics.up.leech", "upload_leech");
CMD_VAR_STRING ("protocol.choke_heuristics.up.seed", "upload_leech");
CMD_VAR_STRING ("protocol.choke_heuristics.down.leech", "download_leech");
CMD_VAR_STRING ("protocol.choke_heuristics.down.seed", "download_leech");
CMD_ANY ("network.http.cacert", [http_stack](auto, auto) { return http_stack->http_cacert(); });
CMD_ANY_STRING_V("network.http.cacert.set", [http_stack](auto, auto& str) { return http_stack->set_http_cacert(str); });
CMD_ANY ("network.http.capath", [http_stack](auto, auto) { return http_stack->http_capath(); });
CMD_ANY_STRING_V("network.http.capath.set", [http_stack](auto, auto& str) { return http_stack->set_http_capath(str); });
CMD_ANY ("network.http.dns_cache_timeout", [http_stack](auto, auto) { return http_stack->dns_timeout(); });
CMD_ANY_VALUE_V ("network.http.dns_cache_timeout.set", [http_stack](auto, auto& value) { return http_stack->set_dns_timeout(value); });
CMD_ANY ("network.http.current_open", [http_stack](auto, auto) { return http_stack->size(); });
CMD_ANY ("network.http.max_cache_connections", [http_stack](auto, auto) { return http_stack->max_cache_connections(); });
CMD_ANY_VALUE_V ("network.http.max_cache_connections.set", [http_stack](auto, auto& value) { return http_stack->set_max_cache_connections(value); });
CMD_ANY ("network.http.max_host_connections", [http_stack](auto, auto) { return http_stack->max_host_connections(); });
CMD_ANY_VALUE_V ("network.http.max_host_connections.set", [http_stack](auto, auto& value) { return http_stack->set_max_host_connections(value); });
CMD_ANY ("network.http.max_total_connections", [http_stack](auto, auto) { return http_stack->max_total_connections(); });
CMD_ANY ("network.http.ssl_verify_host", [http_stack](auto, auto) { return http_stack->ssl_verify_host(); });
CMD_ANY_VALUE_V ("network.http.ssl_verify_host.set", [http_stack](auto, auto& value) { return http_stack->set_ssl_verify_host(value); });
CMD_ANY ("network.http.ssl_verify_peer", [http_stack](auto, auto) { return http_stack->ssl_verify_peer(); });
CMD_ANY_VALUE_V ("network.http.ssl_verify_peer.set", [http_stack](auto, auto& value) { return http_stack->set_ssl_verify_peer(value); });
CMD_ANY ("network.send_buffer.size", [nw_config](auto, auto) { return nw_config->send_buffer_size(); });
CMD_ANY_VALUE_V ("network.send_buffer.size.set", [nw_config](auto, auto& value) { return nw_config->set_send_buffer_size(value); });
CMD_ANY ("network.receive_buffer.size", [nw_config](auto, auto) { return nw_config->receive_buffer_size(); });
CMD_ANY_VALUE_V ("network.receive_buffer.size.set", [nw_config](auto, auto& value) { return nw_config->set_receive_buffer_size(value); });
CMD_ANY_STRING ("network.tos.set", [](auto, auto& str) { return apply_tos(str); });
CMD_ANY ("network.bind_address", [nw_config](auto, auto) { return nw_config->bind_address_best_match_str(); });
CMD_ANY_STRING_V("network.bind_address.set", [nw_config](auto, auto& str) { return nw_config->set_bind_address_str(str); });
CMD_ANY ("network.bind_address.ipv4", [nw_config](auto, auto) { return nw_config->bind_inet_address_str(); });
CMD_ANY_STRING_V("network.bind_address.ipv4.set", [nw_config](auto, auto& str) { return nw_config->set_bind_inet_address_str(str); });
CMD_ANY ("network.bind_address.ipv6", [nw_config](auto, auto) { return nw_config->bind_inet6_address_str(); });
CMD_ANY_STRING_V("network.bind_address.ipv6.set", [nw_config](auto, auto& str) { return nw_config->set_bind_inet6_address_str(str); });
CMD_ANY ("network.local_address", [nw_config](auto, auto) { return nw_config->local_address_best_match_str(); });
CMD_ANY_STRING_V("network.local_address.set", [nw_config](auto, auto& str) { return nw_config->set_local_address_str(str); });
CMD_ANY ("network.local_address.ipv4", [nw_config](auto, auto) { return nw_config->local_inet_address_str(); });
CMD_ANY_STRING_V("network.local_address.ipv4.set", [nw_config](auto, auto& str) { return nw_config->set_local_inet_address_str(str); });
CMD_ANY ("network.local_address.ipv6", [nw_config](auto, auto) { return nw_config->local_inet6_address_str(); });
CMD_ANY_STRING_V("network.local_address.ipv6.set", [nw_config](auto, auto& str) { return nw_config->set_local_inet6_address_str(str); });
CMD_ANY ("network.proxy.global", [](auto, auto) { return torrent::runtime::proxy_manager()->proxy_url(); });
CMD_ANY_STRING_V("network.proxy.global.set", [](auto, auto& str) { return torrent::runtime::proxy_manager()->set_proxy_url(str); });
CMD_ANY ("network.proxy.http", [](auto, auto) { return torrent::runtime::proxy_manager()->http_proxy_url(); });
CMD_ANY_STRING_V("network.proxy.http.set", [](auto, auto& str) { return torrent::runtime::proxy_manager()->set_http_proxy_url(str); });
CMD_ANY ("network.open_files", [file_manager](auto, auto) { return file_manager->open_files(); });
CMD_ANY ("network.max_open_files", [file_manager](auto, auto) { return file_manager->max_open_files(); });
CMD_ANY ("network.total_handshakes", [](auto, auto) { return torrent::runtime::total_handshakes(); });
CMD_ANY_STRING ("network.scgi.open_port", [](auto, auto& arg) { return apply_scgi(arg, 1); });
CMD_ANY_STRING ("network.scgi.open_local", [](auto, auto& arg) { return apply_scgi(arg, 2); });
CMD_VAR_BOOL ("network.scgi.dont_route", false);
CMD_ANY ("network.scgi.open_systemd", [](auto, auto) { return apply_scgi_systemd(); });
CMD_ANY ("network.scgi.use_gzip", [](auto, auto) { return rpc::rpc.scgi_allow_compression(); });
CMD_ANY_VALUE_V ("network.scgi.use_gzip.set", [](auto, auto& arg) { return rpc::rpc.set_scgi_allow_compression(arg); });
CMD_ANY ("network.scgi.gzip.min_size", [](auto, auto) { return rpc::rpc.scgi_min_compress_size(); });
CMD_ANY_VALUE_V ("network.scgi.gzip.min_size.set", [](auto, auto& arg) { return rpc::rpc.set_scgi_min_compress_size(arg); });
CMD_ANY_STRING ("network.xmlrpc.dialect.set", [](auto, auto& arg) { return apply_xmlrpc_dialect(arg); })
CMD_ANY ("network.xmlrpc.size_limit", [](auto, auto) { return rpc::rpc.size_limit(); });
CMD_ANY_VALUE_V ("network.xmlrpc.size_limit.set", [](auto, auto& arg) { return rpc::rpc.set_size_limit(arg); });
CMD_VAR_BOOL ("network.rpc.use_xmlrpc", true);
CMD_VAR_BOOL ("network.rpc.use_jsonrpc", true);
CMD_ANY ("network.block.ipv4", [nw_config](auto, auto) { return nw_config->is_block_ipv4(); });
CMD_ANY_VALUE_V ("network.block.ipv4.set", [nw_config](auto, auto& value) { return nw_config->set_block_ipv4(value); });
CMD_ANY ("network.block.ipv6", [nw_config](auto, auto) { return nw_config->is_block_ipv6(); });
CMD_ANY_VALUE_V ("network.block.ipv6.set", [nw_config](auto, auto& value) { return nw_config->set_block_ipv6(value); });
CMD_ANY ("network.block.ipv4in6", [nw_config](auto, auto) { return nw_config->is_block_ipv4in6(); });
CMD_ANY_VALUE_V ("network.block.ipv4in6.set", [nw_config](auto, auto& value) { return nw_config->set_block_ipv4in6(value); });
CMD_ANY ("network.block.outgoing", [nw_config](auto, auto) { return nw_config->is_block_outgoing(); });
CMD_ANY_VALUE_V ("network.block.outgoing.set", [nw_config](auto, auto& value) { return nw_config->set_block_outgoing(value); });
CMD_ANY ("network.prefer.ipv6", [nw_config](auto, auto) { return nw_config->is_prefer_ipv6(); });
CMD_ANY_VALUE_V ("network.prefer.ipv6.set", [nw_config](auto, auto& value) { return nw_config->set_prefer_ipv6(value); });
rpc::rpc.mark_safe("network.port_open");
rpc::rpc.mark_safe("network.port_random");
rpc::rpc.mark_safe("network.port_range");
rpc::rpc.mark_safe("network.listen.port");
rpc::rpc.mark_safe("network.listen.backlog");
rpc::rpc.mark_safe("network.http.current_open");
rpc::rpc.mark_safe("network.http.max_cache_connections");
rpc::rpc.mark_safe("network.http.max_host_connections");
rpc::rpc.mark_safe("network.http.max_total_connections");
rpc::rpc.mark_safe("network.total_handshakes");
rpc::rpc.mark_safe("network.open_files");
rpc::rpc.mark_safe("network.max_open_files");
rpc::rpc.mark_safe("network.send_buffer.size");
rpc::rpc.mark_safe("network.receive_buffer.size");
rpc::rpc.mark_safe("network.bind_address");
rpc::rpc.mark_safe("network.local_address");
rpc::rpc.mark_safe("network.xmlrpc.size_limit");
rpc::rpc.mark_safe("network.open_sockets");
rpc::rpc.mark_safe("network.http.cacert");
rpc::rpc.mark_safe("network.http.capath");
rpc::rpc.mark_safe("network.proxy.global");
rpc::rpc.mark_safe("network.proxy.http");
rpc::rpc.mark_safe("network.scgi.dont_route");
rpc::rpc.mark_safe("protocol.pex");
rpc::rpc.mark_safe("network.rpc.use_xmlrpc");
rpc::rpc.mark_safe("network.rpc.use_jsonrpc");
}
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