rlibdht 0.1.0

Rust DHT library
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148

use std::any::Any;
use std::net::SocketAddr;
use rlibbencode::variables::bencode_bytes::BencodeBytes;
use rlibbencode::variables::bencode_object::{BencodeObject, GetObject, ObjectOptions, PutObject};
use crate::kad::server::TID_LENGTH;
use crate::messages::inter::message_base::{MessageBase, TID_KEY};
use crate::messages::inter::message_exception::MessageException;
use crate::messages::inter::message_type::{MessageType, TYPE_KEY};
use crate::utils::uid::{ID_LENGTH, UID};
use super::inter::method_message_base::MethodMessageBase;

#[derive(Clone)]
pub struct PingRequest {
    uid: Option<UID>,
    tid: [u8; TID_LENGTH],
    public: Option<SocketAddr>,
    destination: Option<SocketAddr>,
    origin: Option<SocketAddr>
}

impl PingRequest {

    pub fn new(tid: [u8; TID_LENGTH]) -> Self {
        Self {
            tid,
            ..Default::default()
        }
    }
}

impl Default for PingRequest {

    fn default() -> Self {
        Self {
            uid: None,
            tid: [0u8; TID_LENGTH],
            public: None,
            destination: None,
            origin: None
        }
    }
}

//I WONDER IF WE CAN MACRO THIS SHIT FOR EVERY CLASS...?
impl MessageBase for PingRequest {

    fn set_uid(&mut self, uid: UID) {
        self.uid = Some(uid);
    }

    fn get_uid(&self) -> Option<UID> {
        self.uid
    }

    fn set_transaction_id(&mut self, tid: [u8; TID_LENGTH]) {
        self.tid = tid;
    }

    fn get_transaction_id(&self) -> &[u8; TID_LENGTH] {
        &self.tid
    }

    fn set_public(&mut self, public: SocketAddr) {
        self.public = Some(public);
    }

    fn get_public(&self) -> Option<SocketAddr> {
        self.public
    }

    fn set_destination(&mut self, destination: SocketAddr) {
        self.destination = Some(destination);
    }

    fn get_destination(&self) -> Option<SocketAddr> {
        self.destination
    }

    fn set_origin(&mut self, origin: SocketAddr) {
        self.origin = Some(origin);
    }

    fn get_origin(&self) -> Option<SocketAddr> {
        self.origin
    }

    fn get_type(&self) -> MessageType {
        MessageType::ReqMsg
    }

    fn encode(&self) -> BencodeObject {
        let mut ben = BencodeObject::new();

        ben.put(TID_KEY, self.tid.clone());
        ben.put("v", "1.0");
        ben.put(TYPE_KEY, self.get_type().rpc_type_name());

        ben.put(self.get_type().rpc_type_name(), self.get_method());
        ben.put(self.get_type().inner_key(), BencodeObject::new());
        ben.get_mut::<BencodeObject>(self.get_type().inner_key()).unwrap().put("id", self.uid.unwrap().bytes().clone());

        ben
    }

    fn decode(&mut self, ben: &BencodeObject) -> Result<(), MessageException> {
        if !ben.contains_key(self.get_type().inner_key()) {
            return Err(MessageException::new("Protocol Error, such as a malformed packet.", 203));
        }

        match ben.get::<BencodeObject>(self.get_type().inner_key()).unwrap().get::<BencodeBytes>("id") {
            Some(id) => {
                let mut bid = [0u8; ID_LENGTH];
                bid.copy_from_slice(&id.as_bytes()[..ID_LENGTH]);
                self.uid = Some(UID::from(bid));
            }
            _ => return Err(MessageException::new("Protocol Error, such as a malformed packet.", 203))
        }

        Ok(())
    }

    fn as_any(&self) -> &dyn Any {
        self
    }

    fn as_any_mut(&mut self) -> &mut dyn Any {
        self
    }
}

impl MethodMessageBase for PingRequest {

    fn get_method(&self) -> &str {
        "ping"
    }

    fn upcast(&self) -> &dyn MessageBase {
        self
    }

    fn upcast_mut(&mut self) -> &mut dyn MessageBase {
        self
    }

    fn dyn_clone(&self) -> Box<dyn MethodMessageBase> {
        Box::new(self.clone())
    }
}