libratman 0.7.0

Ratman types, client, and interface 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

use crate::{
    frame::{
        micro::parse::*,
        parse::{take_address, take_byte, take_datetime},
        FrameGenerator, FrameParser,
    },
    types::{Address, TrustFilter},
    Result,
};
use chrono::{DateTime, Utc};
use core::fmt;
use nom::IResult;
use serde::{Deserialize, Serialize};
use std::{ffi::CString, fmt::Display};

/// Query existing peers
#[repr(C)]
pub struct PeerQuery {
    /// A regex filter that will have to pass on the peer note contents
    pub note_filter: Option<CString>,
    /// A filter for the existence of a tag for said peer
    pub tag_filter: Vec<CString>,
    /// A filter for a trust threashold for said peer
    pub trust_filter: Option<TrustFilter>,
}

impl FrameParser for PeerQuery {
    type Output = Result<Self>;
    fn parse(input: &[u8]) -> IResult<&[u8], Self::Output> {
        let (input, note_filter) = maybe(cstring, input).map(|(i, x)| (i, x.flatten()))?;
        let (input, tag_filter) = vec_of(cstring, input)?;

        Ok((
            input,
            Ok(Self {
                note_filter,
                tag_filter: tag_filter.into_iter().filter_map(|x| x).collect(),
                trust_filter: None,
            }),
        ))
    }
}

/// A peer metadata entry
///
/// This type must be serde serialisable because it is used in the web API
#[derive(Debug, Serialize, Deserialize)]
pub struct PeerEntry {
    pub addr: Address,
    pub first_connection: DateTime<Utc>,
    pub last_connection: DateTime<Utc>,
    pub active: bool,
}

impl Display for PeerEntry {
    fn fmt(&self, w: &mut fmt::Formatter) -> fmt::Result {
        write!(
            w,
            "{}\t{}\t{}\t{}",
            self.addr,
            self.first_connection,
            self.last_connection,
            if self.active { "ACTIVE" } else { "IDLE" }
        )
    }
}

impl FrameGenerator for PeerEntry {
    fn generate(self, buf: &mut Vec<u8>) -> Result<()> {
        self.addr.generate(buf)?;
        self.first_connection.generate(buf)?;
        self.last_connection.generate(buf)?;
        if self.active {
            buf.push(1);
        } else {
            buf.push(0);
        }
        Ok(())
    }
}

impl FrameParser for PeerEntry {
    type Output = Result<Self>;
    fn parse(input: &[u8]) -> IResult<&[u8], Self::Output> {
        let (input, addr) = take_address(input)?;
        let (input, first) = take_datetime(input)?;
        let (input, last) = take_datetime(input)?;
        let (input, active) = take_byte(input)?;

        match (first, last) {
            (Ok(f), Ok(l)) => Ok((
                input,
                Ok(Self {
                    first_connection: f,
                    last_connection: l,
                    active: if active == 1 { true } else { false },
                    addr,
                }),
            )),
            (Err(e), _) | (_, Err(e)) => Ok((input, Err(e))),
        }
    }
}

/// A list of available peers
#[repr(C)]
#[derive(Debug)]
pub struct PeerList {
    pub list: Vec<PeerEntry>,
}

impl FrameGenerator for PeerList {
    fn generate(self, buf: &mut Vec<u8>) -> Result<()> {
        self.list.generate(buf)?;
        Ok(())
    }
}

impl FrameParser for PeerList {
    type Output = Result<Self>;
    fn parse(input: &[u8]) -> IResult<&[u8], Self::Output> {
        let (input, peer_list) = vec_of(PeerEntry::parse, input)?;
        Ok((
            input,
            peer_list
                .into_iter()
                .collect::<Result<Vec<_>>>()
                .map(|list| Self { list }),
        ))
    }
}