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-rw-r--r--testing/DHT_cryptosendfiletest.c258
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diff --git a/testing/DHT_cryptosendfiletest.c b/testing/DHT_cryptosendfiletest.c
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1/* DHT cryptosendfiletest
2 *
3 * This program sends or receives a friend request.
4 *
5 * it also sends the encrypted data from a file to another client.
6 * Receives the file data that that client sends us.
7 *
8 * NOTE: this program simulates 33% packet loss.
9 *
10 * This is how I compile it: gcc -O2 -Wall -o test ../core/Lossless_UDP.c ../core/network.c ../core/net_crypto.c ../core/DHT.c ../nacl/build/$HOSTNAME/lib/amd64/* DHT_cryptosendfiletest.c
11 *
12 *
13 * Command line arguments are the ip and port of a node (for bootstrapping).
14 *
15 * Saves all received data to: received.txt
16 *
17 * EX: ./test 127.0.0.1 33445 filename.txt
18 *
19 * Copyright (C) 2013 Tox project All Rights Reserved.
20 *
21 * This file is part of Tox.
22 *
23 * Tox is free software: you can redistribute it and/or modify
24 * it under the terms of the GNU General Public License as published by
25 * the Free Software Foundation, either version 3 of the License, or
26 * (at your option) any later version.
27 *
28 * Tox is distributed in the hope that it will be useful,
29 * but WITHOUT ANY WARRANTY; without even the implied warranty of
30 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
31 * GNU General Public License for more details.
32 *
33 * You should have received a copy of the GNU General Public License
34 * along with Tox. If not, see <http://www.gnu.org/licenses/>.
35 *
36 */
37
38#include "../core/network.h"
39#include "../core/DHT.h"
40#include "../core/net_crypto.h"
41#include "misc_tools.h"
42
43#include <string.h>
44
45/* Sleep function (x = milliseconds) */
46#ifdef WIN32
47
48#define c_sleep(x) Sleep(1*x)
49
50#else
51#include <unistd.h>
52#include <arpa/inet.h>
53#define c_sleep(x) usleep(1000*x)
54
55#endif
56
57#define PORT 33445
58
59void printip(IP_Port ip_port)
60{
61 printf("\nIP: %u.%u.%u.%u Port: %u\n", ip_port.ip.c[0], ip_port.ip.c[1], ip_port.ip.c[2], ip_port.ip.c[3],
62 ntohs(ip_port.port));
63}
64
65uint8_t self_public_key[crypto_box_PUBLICKEYBYTES];
66
67int main(int argc, char *argv[])
68{
69 if (argc < 4) {
70 printf("usage %s ip port filename(of file to send)\n", argv[0]);
71 exit(0);
72 }
73
74 new_keys();
75 printf("OUR ID: ");
76 uint32_t i;
77
78 for (i = 0; i < 32; i++) {
79 if (self_public_key[i] < 16)
80 printf("0");
81
82 printf("%hhX", self_public_key[i]);
83 }
84
85 printf("\n");
86
87 memcpy(self_client_id, self_public_key, 32);
88
89 char temp_id[128];
90 printf("Enter the client_id of the friend to connect to (32 bytes HEX format):\n");
91 scanf("%s", temp_id);
92
93 uint8_t friend_id[32];
94 memcpy(friend_id, hex_string_to_bin(temp_id), 32);
95
96 /* memcpy(self_client_id, "qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq", 32); */
97
98
99 DHT_addfriend(friend_id);
100 IP_Port friend_ip;
101 int connection = -1;
102 int inconnection = -1;
103
104 uint8_t acceptedfriend_public_key[crypto_box_PUBLICKEYBYTES];
105 int friendrequest = -1;
106 uint8_t request_data[512];
107
108 /* initialize networking
109 * bind to ip 0.0.0.0:PORT */
110 IP ip;
111 ip.i = 0;
112 init_networking(ip, PORT);
113 initNetCrypto();
114
115 perror("Initialization");
116 IP_Port bootstrap_ip_port;
117 bootstrap_ip_port.port = htons(atoi(argv[2]));
118 bootstrap_ip_port.ip.i = inet_addr(argv[1]);
119 DHT_bootstrap(bootstrap_ip_port);
120
121 IP_Port ip_port;
122 uint8_t data[MAX_UDP_PACKET_SIZE];
123 uint32_t length;
124
125 uint8_t buffer1[128];
126 int read1 = 0;
127 uint8_t buffer2[128];
128 int read2 = 0;
129 FILE *file1 = fopen(argv[3], "rb");
130
131 if ( file1 == NULL ) {
132 printf("Error opening file.\n");
133 return 1;
134 }
135
136 FILE *file2 = fopen("received.txt", "wb");
137
138 if ( file2 == NULL ) {
139 return 1;
140 }
141
142 read1 = fread(buffer1, 1, 128, file1);
143
144 while (1) {
145 while (receivepacket(&ip_port, data, &length) != -1) {
146 if (rand() % 3 != 1) { /* simulate packet loss */
147 if (DHT_handlepacket(data, length, ip_port) && LosslessUDP_handlepacket(data, length, ip_port)) {
148 /* if packet is not recognized */
149 printf("Received unhandled packet with length: %u\n", length);
150 } else {
151 printf("Received handled packet with length: %u\n", length);
152 }
153 }
154 }
155
156 friend_ip = DHT_getfriendip(friend_id);
157
158 if (friend_ip.ip.i != 0) {
159 if (connection == -1 && friendrequest == -1) {
160 printf("Sending friend request to peer:");
161 printip(friend_ip);
162 friendrequest = send_friendrequest(friend_id, friend_ip, (uint8_t *) "Hello World", 12);
163 /* connection = crypto_connect((uint8_t *)friend_id, friend_ip); */
164 /* connection = new_connection(friend_ip); */
165 }
166
167 if (check_friendrequest(friendrequest) == 1) {
168 printf("Started connecting to friend:");
169 connection = crypto_connect(friend_id, friend_ip);
170 }
171 }
172
173 if (inconnection == -1) {
174 uint8_t secret_nonce[crypto_box_NONCEBYTES];
175 uint8_t public_key[crypto_box_PUBLICKEYBYTES];
176 uint8_t session_key[crypto_box_PUBLICKEYBYTES];
177 inconnection = crypto_inbound(public_key, secret_nonce, session_key);
178 inconnection = accept_crypto_inbound(inconnection, acceptedfriend_public_key, secret_nonce, session_key);
179
180 /* inconnection = incoming_connection(); */
181 if (inconnection != -1) {
182 printf("Someone connected to us:\n");
183 /* printip(connection_ip(inconnection)); */
184 }
185 }
186
187 if (handle_friendrequest(acceptedfriend_public_key, request_data) > 1) {
188 printf("RECEIVED FRIEND REQUEST: %s\n", request_data);
189 }
190
191 /* if someone connected to us write what he sends to a file
192 * also send him our file. */
193 if (inconnection != -1) {
194 if (write_cryptpacket(inconnection, buffer1, read1)) {
195 printf("Wrote data1.\n");
196 read1 = fread(buffer1, 1, 128, file1);
197 }
198
199 read2 = read_cryptpacket(inconnection, buffer2);
200
201 if (read2 != 0) {
202 printf("Received data1.\n");
203
204 if (!fwrite(buffer2, read2, 1, file2)) {
205 printf("file write error1\n");
206 }
207
208 if (read2 < 128) {
209 printf("Closed file1 %u\n", read2);
210 fclose(file2);
211 }
212 }
213 /* if buffer is empty and the connection timed out. */
214 else if (is_cryptoconnected(inconnection) == 4) {
215 crypto_kill(inconnection);
216 }
217 }
218
219 /* if we are connected to a friend send him data from the file.
220 * also put what he sends us in a file. */
221 if (is_cryptoconnected(connection) >= 3) {
222 if (write_cryptpacket(0, buffer1, read1)) {
223 printf("Wrote data2.\n");
224 read1 = fread(buffer1, 1, 128, file1);
225 }
226
227 read2 = read_cryptpacket(0, buffer2);
228
229 if (read2 != 0) {
230 printf("Received data2.\n");
231
232 if (!fwrite(buffer2, read2, 1, file2)) {
233 printf("file write error2\n");
234 }
235
236 if (read2 < 128) {
237 printf("Closed file2 %u\n", read2);
238 fclose(file2);
239 }
240 }
241 /* if buffer is empty and the connection timed out. */
242 else if (is_cryptoconnected(connection) == 4) {
243 crypto_kill(connection);
244 }
245 }
246
247 doDHT();
248 doLossless_UDP();
249 doNetCrypto();
250 /*print_clientlist();
251 *print_friendlist();
252 *c_sleep(300); */
253 c_sleep(1);
254 }
255
256 shutdown_networking();
257 return 0;
258}
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