249 lines
7.0 KiB
C++
249 lines
7.0 KiB
C++
#include <string>
|
||
#include <arpa/inet.h>
|
||
#include <cstring>
|
||
#include <fcntl.h>
|
||
#include <filesystem>
|
||
#include <fstream>
|
||
#include <iostream>
|
||
#include <netinet/in.h>
|
||
#include <ostream>
|
||
#include <pthread.h>
|
||
#include <sys/socket.h>
|
||
#include <sys/types.h>
|
||
#include <unistd.h>
|
||
|
||
#ifdef __SWITCH__
|
||
#include <client.hpp>
|
||
#include <switch.h>
|
||
#endif
|
||
#define PORT 8080
|
||
#define BUFFER_SIZE 1024
|
||
#define MULTICAST_PORT 8081
|
||
#define MULTICAST_GROUP "239.0.0.1" // Multicast group IP
|
||
|
||
namespace fs = std::filesystem;
|
||
using path = fs::path;
|
||
|
||
class Logger {
|
||
public:
|
||
inline static const std::string INFO = "[INFO]";
|
||
inline static const std::string DEBUG = "[DEBUG]";
|
||
inline static const std::string ERROR = "[ERROR]";
|
||
inline static const std::string WARN = "[WARN]";
|
||
};
|
||
|
||
struct ThreadArgs {
|
||
int sock;
|
||
fs::path directory;
|
||
};
|
||
|
||
bool receiveAck(int sock) {
|
||
char ack[4] = {0};
|
||
int bytes_received = read(sock, ack, 3);
|
||
std::cout << "receiveAck bytes_received: " << bytes_received << std::endl;
|
||
return bytes_received > 0 && std::string(ack) == "ACK";
|
||
}
|
||
|
||
// Отправка строки с учетом её длины
|
||
void send_string(int sock, const std::string &str) {
|
||
size_t length = str.size();
|
||
send(sock, &length, sizeof(length), 0);
|
||
send(sock, str.c_str(), length, 0);
|
||
}
|
||
|
||
void sendFile(int sock, const fs::path &base_path, const fs::path &filepath) {
|
||
std::ifstream infile(filepath, std::ios::binary | std::ios::ate);
|
||
if (!infile.is_open()) {
|
||
std::cerr << "File not found: " << filepath << std::endl;
|
||
return;
|
||
}
|
||
// std::string relative_path = fs::relative(filepath, base_path).string();
|
||
uint32_t filename_len = filepath.string().size();
|
||
|
||
std::cout << "send filepath length: " << filename_len << std::endl;
|
||
|
||
if (send(sock, &filename_len, sizeof(filename_len), 0) == -1) {
|
||
std::cerr << "Failed to send filename length" << std::endl;
|
||
}
|
||
std::cout << "send filepath: " << filepath.string() << std::endl;
|
||
|
||
// Send the filename
|
||
if (send(sock, filepath.c_str(), filename_len, 0) ==
|
||
-1) { // Send the filename length
|
||
std::cerr << "Failed to send filename" << std::endl;
|
||
}
|
||
|
||
// Get the size of the file
|
||
std::streamsize file_size = infile.tellg();
|
||
infile.seekg(0, std::ios::beg);
|
||
char buffer[BUFFER_SIZE];
|
||
|
||
std::cout << "send filesize: " << file_size << std::endl;
|
||
|
||
// Send the file size
|
||
if (send(sock, &file_size, sizeof(file_size), 0) == -1) {
|
||
std::cerr << "Failed to send file size" << std::endl;
|
||
}
|
||
|
||
while (file_size > 0) {
|
||
infile.read(buffer, BUFFER_SIZE);
|
||
ssize_t bytes_sent = send(sock, buffer, infile.gcount(), 0);
|
||
if (bytes_sent == -1) {
|
||
std::cerr << "Failed to send file data" << std::endl;
|
||
pthread_exit(nullptr);
|
||
}
|
||
file_size -= bytes_sent;
|
||
|
||
// Wait for acknowledgment after each chunk
|
||
if (!receiveAck(sock)) {
|
||
std::cerr << "Failed to receive acknowledgment" << std::endl;
|
||
pthread_exit(nullptr);
|
||
}
|
||
}
|
||
|
||
std::cout << "File sent successfully: " << filepath << std::endl;
|
||
|
||
infile.close();
|
||
}
|
||
|
||
void *send_files_thread(void *args) {
|
||
ThreadArgs *thread_args = static_cast<ThreadArgs *>(args);
|
||
int sock = thread_args->sock;
|
||
fs::path cwd = thread_args->directory;
|
||
delete thread_args;
|
||
std::cout << "cwd is: " << cwd << std::endl;
|
||
|
||
char buffer[BUFFER_SIZE];
|
||
|
||
for (const auto &entry : fs::recursive_directory_iterator(cwd)) {
|
||
path path = entry.path();
|
||
std::cout << "path is " << path << std::endl;
|
||
if (fs::is_regular_file(path)) {
|
||
std::cout << "regular file | path is: " << path << std::endl;
|
||
sendFile(sock, path.parent_path(), path);
|
||
}
|
||
}
|
||
|
||
close(sock);
|
||
pthread_exit(nullptr);
|
||
}
|
||
|
||
int find_server(char *server_ip) {
|
||
std::cout << Logger::INFO << "Init find_server" << std::endl;
|
||
int sockfd;
|
||
struct sockaddr_in multicast_addr;
|
||
|
||
std::cout << Logger::INFO << "Create socket" << std::endl;
|
||
|
||
if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
|
||
std::cout << Logger::ERROR << "Socket creation error" << std::endl;
|
||
return -1;
|
||
}
|
||
|
||
memset(&multicast_addr, 0, sizeof(multicast_addr));
|
||
|
||
multicast_addr.sin_family = AF_INET;
|
||
multicast_addr.sin_port = htons(MULTICAST_PORT);
|
||
multicast_addr.sin_addr.s_addr = inet_addr(MULTICAST_GROUP);
|
||
|
||
std::cout << Logger::INFO << "Send DISCOVER_SERVER" << std::endl;
|
||
|
||
const char *multicast_message = "DISCOVER_SERVER";
|
||
if (sendto(sockfd, multicast_message, strlen(multicast_message), 0,
|
||
(struct sockaddr *)&multicast_addr, sizeof(multicast_addr)) < 0) {
|
||
std::cout << Logger::ERROR << "sendto failed" << std::endl;
|
||
close(sockfd);
|
||
return -1;
|
||
} else {
|
||
std::cout << Logger::INFO << "send multicast message success" << std::endl;
|
||
}
|
||
|
||
struct sockaddr_in cliaddr;
|
||
socklen_t len = sizeof(cliaddr);
|
||
char buffer[BUFFER_SIZE];
|
||
|
||
ssize_t n = recvfrom(sockfd, buffer, BUFFER_SIZE, 0,
|
||
(struct sockaddr *)&cliaddr, &len);
|
||
std::cout << Logger::INFO << "recvfrom n: %i" << n << std::endl;
|
||
if (n < 0) {
|
||
std::cout << Logger::ERROR << "recvfrom failed" << std::endl;
|
||
close(sockfd);
|
||
return -1;
|
||
}
|
||
std::cout << Logger::INFO << "buffer: " << buffer << std::endl;
|
||
buffer[n] = '\0';
|
||
if (strcmp(buffer, "SERVER_HERE") == 0) {
|
||
std::cout << Logger::INFO << "Server found" << std::endl;
|
||
inet_ntop(AF_INET, &cliaddr.sin_addr, server_ip, INET_ADDRSTRLEN);
|
||
} else {
|
||
std::cout << Logger::ERROR << "Unable to find server, close socket"
|
||
<< std::endl;
|
||
;
|
||
close(sockfd);
|
||
return -1;
|
||
}
|
||
|
||
close(sockfd);
|
||
return 0;
|
||
}
|
||
|
||
int transfer_files(fs::path directory) {
|
||
std::cout << Logger::INFO << "Init transfer_files" << std::endl;
|
||
char server_ip[INET_ADDRSTRLEN];
|
||
if (find_server(server_ip) != 0) {
|
||
std::cout << Logger::ERROR << "Failed to find server" << std::endl;
|
||
return -1;
|
||
}
|
||
|
||
int sock = 0;
|
||
struct sockaddr_in serv_addr;
|
||
|
||
if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
|
||
std::cout << Logger::ERROR << "Socket creation error" << std::endl;
|
||
return -1;
|
||
}
|
||
|
||
serv_addr.sin_family = AF_INET;
|
||
serv_addr.sin_port = htons(PORT);
|
||
|
||
if (inet_pton(AF_INET, server_ip, &serv_addr.sin_addr) <= 0) {
|
||
std::cout << Logger::ERROR << "Invalid address / Address not supported"
|
||
<< std::endl;
|
||
return -1;
|
||
}
|
||
|
||
if (connect(sock, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0) {
|
||
std::cout << Logger::ERROR << "Connection failed" << std::endl;
|
||
return -1;
|
||
}
|
||
|
||
pthread_t file_thread;
|
||
ThreadArgs *thread_args = new ThreadArgs{sock, directory};
|
||
if (pthread_create(&file_thread, nullptr, send_files_thread,
|
||
(void *)thread_args) < 0) {
|
||
std::cout << Logger::ERROR << "Thread creation failed" << std::endl;
|
||
close(sock);
|
||
delete thread_args;
|
||
return -1;
|
||
} else {
|
||
std::cout << Logger::INFO << "Wait for file_thread" << std::endl;
|
||
pthread_join(file_thread, nullptr);
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
#ifndef __SWITCH__ // for desktop
|
||
int main(int argc, char *argv[]) {
|
||
if (argc < 1) {
|
||
std::cerr << "Usage: " << argv[0] << " <path> " << std::endl;
|
||
return 1;
|
||
}
|
||
|
||
fs::path directory = fs::path(argv[1]);
|
||
std::cout << "directory is " << directory << std::endl;
|
||
transfer_files(directory);
|
||
|
||
return 0;
|
||
}
|
||
#endif
|