86 lines
2.6 KiB
C++
86 lines
2.6 KiB
C++
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#include "smartea.h"
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#include "util/utils.h"
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#include "util/logging.h"
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namespace smartea {
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bool check_url(std::string url) {
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// WSA startup
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WSADATA wsa_data;
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int error;
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if ((error = WSAStartup(MAKEWORD(2, 2), &wsa_data)) != 0) {
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log_fatal("smartea", "WSAStartup returned {}", error);
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}
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// create hints
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addrinfo hints;
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ZeroMemory(&hints, sizeof(hints));
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hints.ai_family = AF_UNSPEC;
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hints.ai_socktype = SOCK_STREAM;
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hints.ai_protocol = IPPROTO_TCP;
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// get port
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std::vector<std::string> url_split;
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strsplit(url, url_split, ':');
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int port = 80;
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if (url_split.size() >= 2 && string_begins_with(url_split[0], "http"))
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url_split.erase(std::begin(url_split));
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while (url_split.size() >= 1 && url_split[0].length() > 0 && url_split[0][0] == '/')
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url_split[0] = url_split[0].substr(1);
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if (url_split.size() >= 2)
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port = strtol(url_split[1].c_str(), nullptr, 10);
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// remove path from host
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auto host_slash = url_split[0].find("/");
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if (host_slash != std::string::npos) {
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url_split[0] = url_split[0].substr(0, host_slash);
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}
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// get address info
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addrinfo *result;
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if ((error = getaddrinfo(url_split[0].c_str(), to_string(port).c_str(), &hints, &result)) != 0) {
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log_info("smartea", "could not resolve {}:{}: {}", url_split[0], url_split[1], error);
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WSACleanup();
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return false;
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}
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// iterate list
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bool success = false;
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for (addrinfo *ptr = result; ptr != nullptr; ptr = ptr->ai_next) {
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// create socket
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SOCKET sock = socket(ptr->ai_family, ptr->ai_socktype, ptr->ai_protocol);
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if (sock == INVALID_SOCKET) {
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log_info("smartea", "could not create socket: {}", WSAGetLastError());
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WSACleanup();
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return false;
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}
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// connect to server
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error = connect(sock, ptr->ai_addr, (int) ptr->ai_addrlen);
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if (error == SOCKET_ERROR) {
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closesocket(sock);
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continue;
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}
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// success
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success = true;
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closesocket(sock);
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break;
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}
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// WSA shutdown
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WSACleanup();
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// success
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if (success)
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log_info("smartea", "server seems to be available :)");
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else
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log_info("smartea", "server seems to be dead :(");
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return success;
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}
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}
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