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toxcore/testing/tox_sync.c

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/* Tox Sync
*
* Proof of concept bittorrent sync like software using tox, syncs two directories.
*
* Command line arguments are the ip, port and public_key of a node (for bootstrapping) and the folder to sync.
*
* EX: ./test 127.0.0.1 33445 CDCFD319CE3460824B33BE58FD86B8941C9585181D8FBD7C79C5721D7C2E9F7C ./sync_folder/
*
* NOTE: for security purposes, both tox sync instances must manually add each other as friend for it to work.
*
*
* Copyright (C) 2013 Tox project All Rights Reserved.
*
* This file is part of Tox.
*
* Tox is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Tox is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Tox. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "../toxcore/tox.h"
#include "misc_tools.c"
#include <unistd.h>
#define c_sleep(x) usleep(1000*x)
#include <dirent.h>
#include <stdio.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#define NUM_FILE_SENDERS 256
typedef struct {
FILE *file;
uint32_t friendnum;
uint32_t filenumber;
} File_t;
File_t file_senders[NUM_FILE_SENDERS];
File_t file_recv[NUM_FILE_SENDERS];
uint8_t numfilesenders;
void tox_file_chunk_request(Tox *tox, uint32_t friend_number, uint32_t file_number, uint64_t position, size_t length,
void *user_data)
{
unsigned int i;
for (i = 0; i < NUM_FILE_SENDERS; ++i) {
/* This is slow */
if (file_senders[i].file && file_senders[i].friendnum == friend_number && file_senders[i].filenumber == file_number) {
if (length == 0) {
fclose(file_senders[i].file);
file_senders[i].file = 0;
printf("[t] %u file transfer: %u completed\n", file_senders[i].friendnum, file_senders[i].filenumber);
break;
}
fseek(file_senders[i].file, position, SEEK_SET);
uint8_t data[length];
int len = fread(data, 1, length, file_senders[i].file);
tox_file_send_chunk(tox, friend_number, file_number, position, data, len, 0);
break;
}
}
}
uint32_t add_filesender(Tox *m, uint16_t friendnum, char *filename)
{
FILE *tempfile = fopen(filename, "rb");
if (tempfile == 0)
return -1;
fseek(tempfile, 0, SEEK_END);
uint64_t filesize = ftell(tempfile);
fseek(tempfile, 0, SEEK_SET);
uint32_t filenum = tox_file_send(m, friendnum, TOX_FILE_KIND_DATA, filesize, 0, (uint8_t *)filename,
strlen(filename), 0);
if (filenum == -1)
return -1;
file_senders[numfilesenders].file = tempfile;
file_senders[numfilesenders].friendnum = friendnum;
file_senders[numfilesenders].filenumber = filenum;
++numfilesenders;
return filenum;
}
void kill_filesender(Tox *m, uint32_t filenum)
{
uint32_t i;
for (i = 0; i < NUM_FILE_SENDERS; ++i)
if (file_senders[i].file != 0 && file_senders[i].filenumber == filenum) {
fclose(file_senders[i].file);
file_senders[i].file = 0;
}
}
int not_sending()
{
uint32_t i;
for (i = 0; i < NUM_FILE_SENDERS; ++i)
if (file_senders[i].file != 0)
return 0;
return 1;
}
static char path[1024];
void file_request_accept(Tox *tox, uint32_t friend_number, uint32_t file_number, uint32_t type, uint64_t file_size,
const uint8_t *filename, size_t filename_length, void *user_data)
{
if (type != TOX_FILE_KIND_DATA) {
printf("Refused invalid file type.");
tox_file_control(tox, friend_number, file_number, TOX_FILE_CONTROL_CANCEL, 0);
return;
}
char fullpath[1024];
uint32_t i;
uint16_t rm = 0;
for (i = 0; i < strlen((char *)filename); ++i) {
if (filename[i] == '/')
rm = i;
}
if (path[strlen(path) - 1] == '/')
sprintf(fullpath, "%s%s", path, filename + rm + 1);
else
sprintf(fullpath, "%s/%s", path, filename + rm + 1);
FILE *tempfile = fopen(fullpath, "rb");
if (tempfile != 0) {
fclose(tempfile);
tox_file_control(tox, friend_number, file_number, TOX_FILE_CONTROL_CANCEL, 0);
return;
}
uint8_t file_index = (file_number >> 16) - 1;
file_recv[file_index].file = fopen(fullpath, "wb");
if (file_recv[file_index].file == 0) {
tox_file_control(tox, friend_number, file_number, TOX_FILE_CONTROL_CANCEL, 0);
return;
}
if (tox_file_control(tox, friend_number, file_number, TOX_FILE_CONTROL_RESUME, 0)) {
printf("Accepted file transfer. (file: %s)\n", fullpath);
}
}
void file_print_control(Tox *tox, uint32_t friend_number, uint32_t file_number, TOX_FILE_CONTROL control,
void *user_data)
{
if (file_number < (1 << 15) && (control == TOX_FILE_CONTROL_CANCEL)) {
kill_filesender(tox, file_number);
return;
}
if (file_number > (1 << 15) && (control == TOX_FILE_CONTROL_CANCEL)) {
uint8_t file_index = (file_number >> 16) - 1;
fclose(file_recv[file_index].file);
printf("File closed\n");
file_recv[file_index].file = 0;
return;
}
}
void write_file(Tox *tox, uint32_t friendnumber, uint32_t filenumber, uint64_t position, const uint8_t *data,
size_t length, void *user_data)
{
uint8_t file_index = (filenumber >> 16) - 1;
if (length == 0) {
fclose(file_recv[file_index].file);
printf("File closed\n");
file_recv[file_index].file = 0;
printf("%u file transfer: %u completed\n", friendnumber, filenumber);
return;
}
if (file_recv[file_index].file != 0) {
fseek(file_recv[file_index].file, position, SEEK_SET);
if (fwrite(data, length, 1, file_recv[file_index].file) != 1)
printf("Error writing data\n");
}
}
void print_online(Tox *tox, uint32_t friendnumber, TOX_CONNECTION status, void *userdata)
{
if (status)
printf("\nOther went online.\n");
else {
printf("\nOther went offline.\n");
unsigned int i;
for (i = 0; i < NUM_FILE_SENDERS; ++i) {
if (file_senders[i].file != 0) {
fclose(file_senders[i].file);
file_senders[i].file = 0;
}
if (file_recv[i].file != 0) {
fclose(file_recv[i].file);
file_recv[i].file = 0;
}
}
}
}
int main(int argc, char *argv[])
{
uint8_t ipv6enabled = 1; /* x */
int argvoffset = cmdline_parsefor_ipv46(argc, argv, &ipv6enabled);
if (argvoffset < 0)
exit(1);
/* with optional --ipvx, now it can be 1-4 arguments... */
if ((argc != argvoffset + 3) && (argc != argvoffset + 5)) {
printf("Usage: %s [--ipv4|--ipv6] ip port public_key (of the DHT bootstrap node) folder (to sync)\n", argv[0]);
exit(0);
}
Tox *tox = tox_new(0, 0);
tox_callback_file_recv_chunk(tox, write_file, NULL);
tox_callback_file_recv_control(tox, file_print_control, NULL);
tox_callback_file_recv(tox, file_request_accept, NULL);
tox_callback_file_chunk_request(tox, tox_file_chunk_request, NULL);
tox_callback_friend_connection_status(tox, print_online, NULL);
uint16_t port = atoi(argv[argvoffset + 2]);
unsigned char *binary_string = hex_string_to_bin(argv[argvoffset + 3]);
int res = tox_bootstrap(tox, argv[argvoffset + 1], port, binary_string, 0);
free(binary_string);
if (!res) {
printf("Failed to convert \"%s\" into an IP address. Exiting...\n", argv[argvoffset + 1]);
exit(1);
}
uint8_t address[TOX_ADDRESS_SIZE];
tox_self_get_address(tox, address);
uint32_t i;
for (i = 0; i < TOX_ADDRESS_SIZE; i++) {
printf("%02X", address[i]);
}
char temp_id[128];
printf("\nEnter the address of the other id you want to sync with (38 bytes HEX format):\n");
if (scanf("%s", temp_id) != 1) {
return 1;
}
uint8_t *bin_id = hex_string_to_bin(temp_id);
uint32_t num = tox_friend_add(tox, bin_id, (uint8_t *)"Install Gentoo", sizeof("Install Gentoo"), 0);
free(bin_id);
if (num == UINT32_MAX) {
printf("\nSomething went wrong when adding friend.\n");
return 1;
}
memcpy(path, argv[argvoffset + 4], strlen(argv[argvoffset + 4]));
DIR *d;
struct dirent *dir;
uint8_t notconnected = 1;
while (1) {
if (tox_self_get_connection_status(tox) && notconnected) {
printf("\nDHT connected.\n");
notconnected = 0;
}
if (not_sending() && tox_friend_get_connection_status(tox, num, 0)) {
d = opendir(path);
if (d) {
while ((dir = readdir(d)) != NULL) {
if (dir->d_type == DT_REG) {
char fullpath[1024];
if (path[strlen(path) - 1] == '/')
sprintf(fullpath, "%s%s", path, dir->d_name);
else
sprintf(fullpath, "%s/%s", path, dir->d_name);
add_filesender(tox, num, fullpath);
}
}
closedir(d);
} else {
printf("\nFailed to open directory.\n");
return 1;
}
}
tox_iterate(tox);
c_sleep(1);
}
return 0;
}
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