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check_proxy.cpp
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check_proxy.cpp
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//
// Copyright Aliaksei Levin ([email protected]), Arseny Smirnov ([email protected]) 2014-2021
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include "td/telegram/Client.h"
#include "td/telegram/td_api.h"
#include "td/utils/base64.h"
#include "td/utils/common.h"
#include "td/utils/filesystem.h"
#include "td/utils/logging.h"
#include "td/utils/misc.h"
#include "td/utils/TsCerr.h"
#include <algorithm>
#include <cstdlib>
#include <iostream>
#include <utility>
static void usage() {
td::TsCerr() << "Tests specified MTProto-proxies, outputs working proxies to stdout; exits with code 0 if a working "
"proxy was found.\n";
td::TsCerr() << "Usage: check_proxy [options] server:port:secret [server2:port2:secret2 ...]\n";
td::TsCerr() << "Options:\n";
td::TsCerr() << " -v<N>\tSet verbosity level to N\n";
td::TsCerr() << " -h/--help\tDisplay this information\n";
td::TsCerr() << " -d/--dc-id\tIdentifier of a datacenter, to which try to connect (default is 2)\n";
td::TsCerr() << " -l/--proxy-list\tName of a file with proxies to check; one proxy per line\n";
td::TsCerr() << " -t/--timeout\tMaximum overall timeout for the request (default is 10 seconds)\n";
std::exit(2);
}
int main(int argc, char **argv) {
int new_verbosity_level = VERBOSITY_NAME(FATAL);
td::vector<std::pair<td::string, td::td_api::object_ptr<td::td_api::testProxy>>> requests;
auto add_proxy = [&requests](td::string arg) {
if (arg.empty()) {
return;
}
std::size_t offset = 0;
if (arg[0] == '[') {
auto end_ipv6_pos = arg.find(']');
if (end_ipv6_pos == td::string::npos) {
td::TsCerr() << "Error: failed to find end of IPv6 address in \"" << arg << "\"\n";
usage();
}
offset = end_ipv6_pos;
}
if (std::count(arg.begin() + offset, arg.end(), ':') == 3) {
auto secret_domain_pos = arg.find(':', arg.find(':', offset) + 1) + 1;
auto domain_pos = arg.find(':', secret_domain_pos);
auto secret = arg.substr(secret_domain_pos, domain_pos - secret_domain_pos);
auto domain = arg.substr(domain_pos + 1);
auto r_decoded_secret = td::hex_decode(secret);
if (r_decoded_secret.is_error()) {
r_decoded_secret = td::base64url_decode(secret);
if (r_decoded_secret.is_error()) {
td::TsCerr() << "Error: failed to find proxy port and secret in \"" << arg << "\"\n";
usage();
}
}
arg = arg.substr(0, secret_domain_pos) + td::base64url_encode(r_decoded_secret.ok() + domain);
}
auto secret_pos = arg.rfind(':');
if (secret_pos == td::string::npos) {
td::TsCerr() << "Error: failed to find proxy port and secret in \"" << arg << "\"\n";
usage();
}
auto secret = arg.substr(secret_pos + 1);
auto port_pos = arg.substr(0, secret_pos).rfind(':');
if (port_pos == td::string::npos) {
td::TsCerr() << "Error: failed to find proxy secret in \"" << arg << "\"\n";
usage();
}
auto r_port = td::to_integer_safe<td::int32>(arg.substr(port_pos + 1, secret_pos - port_pos - 1));
if (r_port.is_error()) {
td::TsCerr() << "Error: failed to parse proxy port in \"" << arg << "\"\n";
usage();
}
auto port = r_port.move_as_ok();
auto server = arg.substr(0, port_pos);
if (server[0] == '[' && server.back() == ']') {
server = server.substr(1, server.size() - 2);
}
if (server.empty() || port <= 0 || port > 65536 || secret.empty()) {
td::TsCerr() << "Error: proxy address to check is in wrong format: \"" << arg << "\"\n";
usage();
}
requests.emplace_back(arg,
td::td_api::make_object<td::td_api::testProxy>(
server, port, td::td_api::make_object<td::td_api::proxyTypeMtproto>(secret), -1, -1));
};
td::int32 dc_id = 2;
double timeout = 10.0;
for (int i = 1; i < argc; i++) {
td::string arg(argv[i]);
auto get_next_arg = [&i, &arg, argc, argv](bool is_optional = false) {
CHECK(arg.size() >= 2);
if (arg.size() == 2 || arg[1] == '-') {
if (i + 1 < argc && argv[i + 1][0] != '-') {
return td::string(argv[++i]);
}
} else {
if (arg.size() > 2) {
return arg.substr(2);
}
}
if (!is_optional) {
td::TsCerr() << "Error: value is required after " << arg << "\n";
usage();
}
return td::string();
};
if (td::begins_with(arg, "-v")) {
arg = get_next_arg(true);
int new_verbosity = 1;
while (arg[0] == 'v') {
new_verbosity++;
arg = arg.substr(1);
}
if (!arg.empty()) {
new_verbosity += td::to_integer<int>(arg) - (new_verbosity == 1);
}
new_verbosity_level = VERBOSITY_NAME(FATAL) + new_verbosity;
} else if (td::begins_with(arg, "-t") || arg == "--timeout") {
timeout = td::to_double(get_next_arg());
} else if (td::begins_with(arg, "-d") || arg == "--dc-id") {
dc_id = td::to_integer<td::int32>(get_next_arg());
} else if (td::begins_with(arg, "-l") || arg == "--proxy-list") {
auto r_proxies = td::read_file_str(get_next_arg());
if (r_proxies.is_error()) {
td::TsCerr() << "Error: wrong file name specified\n";
usage();
}
for (auto &proxy : td::full_split(r_proxies.ok(), '\n')) {
add_proxy(td::trim(proxy));
}
} else if (arg[0] == '-') {
usage();
} else {
add_proxy(arg);
}
}
if (requests.empty()) {
td::TsCerr() << "Error: proxy address to check is not specified\n";
usage();
}
SET_VERBOSITY_LEVEL(new_verbosity_level);
td::ClientManager client_manager;
auto client_id = client_manager.create_client_id();
for (size_t i = 0; i < requests.size(); i++) {
auto &request = requests[i].second;
request->dc_id_ = dc_id;
request->timeout_ = timeout;
client_manager.send(client_id, i + 1, std::move(request));
}
size_t successful_requests = 0;
size_t failed_requests = 0;
while (successful_requests + failed_requests != requests.size()) {
auto response = client_manager.receive(100.0);
CHECK(client_id == response.client_id);
if (1 <= response.request_id && response.request_id <= requests.size()) {
auto &proxy = requests[static_cast<size_t>(response.request_id - 1)].first;
if (response.object->get_id() == td::td_api::error::ID) {
LOG(ERROR) << proxy << ": " << to_string(response.object);
failed_requests++;
} else {
std::cout << proxy << std::endl;
successful_requests++;
}
}
}
if (successful_requests == 0) {
return 1;
}
}