2 use std
::io
::{ MemWriter
, Acceptor
, Listener
, TcpStream
, IoResult
, IoError
, EndOfFile
};
3 use std
::io
::net
::tcp
::{ TcpAcceptor
, TcpListener
};
5 use packet
::{ Packet
, Command
, Answer
, Error
, ReadingResult
, PacketType
};
7 // Default timeout when waiting data on a stream (for instance: 'TcpStream::read').
8 static DEFAULT_TIMEOUT
: Option
<u64> = Some(500); // [ms].
20 current_timestamp
: u64
24 pub fn new(interface
: &str, port
: u16) -> IoResult
<Server
> {
25 let mut acceptor
= try!(TcpListener
::bind(interface
, port
).listen());
28 acceptor
: acceptor
.clone()
33 for stream
in acceptor
.incoming() {
35 Ok(stream
) => spawn(proc() {
36 Server
::handle_client(EndPoint
{ socket
: stream
, current_timestamp
: 0 });
47 pub fn close(&mut self) -> IoResult
<()> {
48 self.acceptor
.close_accept()
51 fn handle_client(mut end_point
: EndPoint
) {
53 match end_point
.read() {
54 Ok(packet@Packet
{ t
: Command(..), .. }) => {
55 println!("[Server] Valid command received: {}", packet
);
56 let answer
= Answer(Packet
::random_packet_data([]));
57 match end_point
.send(answer
.clone()) {
59 println!("[Server] Answer sent: {}", answer
),
61 println!("[Server] Can't send the answer. Error: {}", e
)
64 // Socket has been closed.
65 Err(packet
::IOReadError(IoError
{ kind
: EndOfFile
, .. })) => {
66 println!("[Server] Connection closed: EOF");
70 println!("[Server] Error or invalid packet: {}", other
)
77 pub fn new(address
: &str, port
: u16) -> IoResult
<Client
> {
78 Ok(Client
{ end_point
: EndPoint
{
79 socket
: try!(TcpStream
::connect(address
, port
)),
84 pub fn close(&mut self) -> IoResult
<()> {
85 self.end_point
.close()
88 pub fn send(&mut self, packet
: PacketType
) {
91 println!("[Client] Sending: {}", packet
);
92 match self.end_point
.send_with_result(packet
) {
93 Ok(Ok(packet@Packet
{ t
: Answer(..), .. })) =>
94 println!("[Client] Command transmitted correctly, answer: {}", packet
),
96 println!("[Client] Command transmitted correctly, wrong answer: {}", packet
),
98 println!("[Client] Answer error: {}", e
),
100 println!("[Client] Can't send the packet. Error: {}", e
)
104 println!("[Client] Cannot send this type of packet: {}", other
)
108 /// Send some valid and not-valid packets to the server and check the result.
109 /// For each test a new client is created.
110 pub fn start_tests(address
: &str, port
: u16) {
111 let execute
= |f
: &mut |&mut Client
| -> bool
| -> bool
{
112 match Client
::new(address
, port
) {
113 Ok(ref mut client
) => (*f
)(client
),
115 println!("Unable to create a client. Error: {}", e
);
121 fn raw_packet(timestamp
: u64) -> Vec
<u8> {
122 let mut m
= MemWriter
::new();
123 match (Packet
{ t
: Command(Packet
::random_packet_data([42])), timestamp
: timestamp
}).write(&mut m
) {
129 let mut tests
= vec!(
131 |client
: &mut Client
| -> bool
{
132 println!("Sending a valid packet...");
133 match client
.end_point
.send_with_result(Command(Packet
::random_packet_data([42]))) {
134 Ok(Ok(Packet
{ t
: Answer(..), .. })) => true,
136 println!("Error: {}", other
);
142 |client
: &mut Client
| -> bool
{
143 println!("Sending a packet with an unknown type...");
144 client
.end_point
.current_timestamp
+= 1;
145 let mut raw_packet
= raw_packet(client
.end_point
.current_timestamp
);
146 raw_packet
[2] = 0xEE; // Alter the type.
147 match client
.end_point
.send_raw_with_result(raw_packet
.as_slice()) {
148 Ok(Err(packet
::IOReadError( IoError
{ kind
: io
::TimedOut
, .. }))) => true, // OK: the server should not send any packet.
150 println!("Error: {}", other
);
156 |client
: &mut Client
| -> bool
{
157 println!("Sending a packet with an old timestamp...");
158 client
.end_point
.current_timestamp
+= 1;
159 let raw_packet
= raw_packet(0);
160 match client
.end_point
.send_raw_with_result(raw_packet
.as_slice()) {
161 Ok(Err(packet
::IOReadError( IoError
{ kind
: io
::TimedOut
, .. }))) => true, // OK: the server should not send any packet.
163 println!("Error: {}", other
);
169 |client
: &mut Client
| -> bool
{
170 println!("Sending a packet with altered crypted data (do not alter the padding)...");
171 client
.end_point
.current_timestamp
+= 1;
172 let mut raw_packet
= raw_packet(client
.end_point
.current_timestamp
);
173 raw_packet
[11] = 0xDE;
174 raw_packet
[12] = 0xAD;
175 raw_packet
[13] = 0xBE;
176 raw_packet
[14] = 0xEF;
177 match client
.end_point
.send_raw_with_result(raw_packet
.as_slice()) {
178 Ok(Ok(Packet
{ t
: Error(packet
::AuthError
), .. })) => true,
180 println!("Error: {}", other
);
186 |client
: &mut Client
| -> bool
{
187 println!("Sending a packet with too small data...");
188 let command
= Command(Packet
::new_packet_data(0, Vec
::from_elem(6, 0x00)));
189 match client
.end_point
.send_with_result(command
) {
190 Ok(Err(packet
::IOReadError( IoError
{ kind
: io
::TimedOut
, .. }))) => true, // OK: the server should not send any packet.
192 println!("Error: {}", other
);
198 |client
: &mut Client
| -> bool
{
199 println!("Sending a packet with too large data...");
200 let command
= Command(Packet
::new_packet_data(0, Vec
::from_elem(40, 0x00)));
201 match client
.end_point
.send_with_result(command
) {
202 Ok(Err(packet
::IOReadError( IoError
{ kind
: io
::TimedOut
, .. }))) => true, // OK: the server should not send any packet.
204 println!("Error: {}", other
);
210 |client
: &mut Client
| -> bool
{
211 println!("Sending a packet with wrong padding (all 0)...");
212 client
.end_point
.current_timestamp
+= 1;
213 let mut m
= MemWriter
::new();
214 let raw_packet
= match (Packet
{ t
: Command(Packet
::random_packet_data([42])), timestamp
: client
.end_point
.current_timestamp
}).write_with_padding_fun(&mut m
, |_
, _
| -> u8 { 0 }) {
219 match client
.end_point
.send_raw_with_result(raw_packet
.as_slice()) {
220 Ok(Ok(Packet
{ t
: Error(packet
::CryptError
), .. })) => true,
222 println!("Error: {}", other
);
229 let mut nb_test_passed
= 0;
230 for (i
, test
) in range(1, tests
.len()+1).zip(tests
.iter_mut()) {
231 println!("===== Test case #{}:", i
)
234 println!("===== Test passed");
236 println!("===== Test failed");
240 if nb_test_passed
== tests
.len() {
241 println!("All tests passed");
243 println!("#{} test(s) failed", tests
.len() - nb_test_passed
);
249 fn close(&mut self) -> IoResult
<()> {
250 try!(self.socket
.close_read());
251 try!(self.socket
.close_write());
255 /// Send a packet and wait for an answer synchronously.
256 fn send_with_result(&mut self, p
: PacketType
) -> IoResult
<ReadingResult
> {
263 /// Send arbitrary data and wait for an answer synchronously.
264 /// Do not increment the current timestamp.
265 fn send_raw_with_result(&mut self, p
: &[u8]) -> IoResult
<ReadingResult
> {
266 self.socket
.set_timeout(DEFAULT_TIMEOUT
);
267 match self.socket
.write(p
) {
273 fn send(&mut self, p
: PacketType
) -> IoResult
<()> {
274 self.socket
.set_timeout(DEFAULT_TIMEOUT
);
275 self.current_timestamp
+= 1;
276 match (Packet
{ t
: p
, timestamp
: self.current_timestamp
}).write(&mut self.socket
) {
277 Err(packet
::WriteIOError(e
)) => Err(e
),
282 fn read(&mut self) -> ReadingResult
{
283 fn send_error(ep
: &mut EndPoint
, error_type
: packet
::ErrorType
) {
284 match ep
.send(Error(error_type
)) {
285 Err(e
) => println!("Unable to send error packet: {}", e
),
290 self.socket
.set_timeout(DEFAULT_TIMEOUT
);
291 match Packet
::read(&mut self.socket
) {
293 if packet
.timestamp
<= self.current_timestamp
{
294 println!("Error, timestamp mismatch, current timestamp: {}, packet received: {}", self.current_timestamp
, packet
);
295 Err(packet
::InvalidTimestampError
)
297 self.current_timestamp
= packet
.timestamp
+ 1;
301 e @
Err(packet
::PaddingError
) => {
302 self.current_timestamp
+= 1;
303 send_error(self, packet
::CryptError
);
306 e @
Err(packet
::MACMismatchError
) => {
307 self.current_timestamp
+= 1;
308 send_error(self, packet
::AuthError
);