teliox 0.17.13

Library for the Transaction Event Log
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

use keri_core::{event::sections::seal::EventSeal, prefix::IdentifierPrefix};
use said::version::format::SerializationFormats;
use said::{derivation::HashFunction, derivation::HashFunctionCode, SelfAddressingIdentifier};

use crate::{
    error::Error,
    event::{
        manager_event::{Config, Inc, ManagerEventType, ManagerTelEvent, Rot},
        vc_event::{Issuance, Revocation, SimpleIssuance, SimpleRevocation, VCEvent, VCEventType},
        Event,
    },
    state::ManagerTelState,
};

pub fn make_inception_event(
    issuer_prefix: IdentifierPrefix,
    config: Vec<Config>,
    backer_threshold: u64,
    backers: Vec<IdentifierPrefix>,
    derivation: Option<&HashFunctionCode>,
    serialization_format: Option<&SerializationFormats>,
) -> Result<Event, Error> {
    let event_type = Inc {
        issuer_id: issuer_prefix,
        config,
        backer_threshold,
        backers,
    };

    Ok(Event::Management(
        event_type
            .incept_self_addressing(
                &HashFunction::from(
                    derivation
                        .unwrap_or(&HashFunctionCode::Blake3_256)
                        .to_owned(),
                ),
                serialization_format
                    .unwrap_or(&SerializationFormats::JSON)
                    .to_owned(),
            )?
            .to_message(
                *serialization_format.unwrap_or(&SerializationFormats::JSON),
                derivation.unwrap_or(&HashFunctionCode::Blake3_256).clone(),
            )?,
    ))
}

pub fn make_rotation_event(
    state: &ManagerTelState,
    ba: &[IdentifierPrefix],
    br: &[IdentifierPrefix],
    derivation: Option<&HashFunctionCode>,
    serialization_format: Option<&SerializationFormats>,
) -> Result<Event, Error> {
    let rot_data = Rot {
        prev_event: state.last.clone(),
        backers_to_add: ba.to_vec(),
        backers_to_remove: br.to_vec(),
    };
    Ok(Event::Management(
        ManagerTelEvent::new(&state.prefix, state.sn + 1, ManagerEventType::Vrt(rot_data))
            .to_message(
                serialization_format
                    .unwrap_or(&SerializationFormats::JSON)
                    .to_owned(),
                derivation.unwrap_or(&HashFunctionCode::Blake3_256).clone(),
            )?,
    ))
}

pub fn make_simple_issuance_event(
    registry_id: IdentifierPrefix,
    vc_hash: SelfAddressingIdentifier,
    derivation: Option<&HashFunctionCode>,
    serialization_format: Option<&SerializationFormats>,
) -> Result<Event, Error> {
    let iss = VCEventType::Iss(SimpleIssuance { registry_id });
    let vc_prefix = IdentifierPrefix::self_addressing(vc_hash);
    Ok(Event::Vc(VCEvent::new(vc_prefix, 0, iss).to_message(
        *serialization_format.unwrap_or(&SerializationFormats::JSON),
        derivation.unwrap_or(&HashFunctionCode::Blake3_256).clone(),
    )?))
}

pub fn make_issuance_event(
    state: &ManagerTelState,
    vc_hash: SelfAddressingIdentifier,
    derivation: Option<&HashFunctionCode>,
    serialization_format: Option<&SerializationFormats>,
) -> Result<Event, Error> {
    let registry_anchor = EventSeal::new(state.prefix.clone(), state.sn, state.last.clone());
    let iss = VCEventType::Bis(Issuance::new(state.issuer.clone(), registry_anchor));
    let vc_prefix = IdentifierPrefix::self_addressing(vc_hash);
    Ok(Event::Vc(VCEvent::new(vc_prefix, 0, iss).to_message(
        *serialization_format.unwrap_or(&SerializationFormats::JSON),
        derivation.unwrap_or(&HashFunctionCode::Blake3_256).clone(),
    )?))
}

pub fn make_simple_revoke_event(
    vc_hash: &SelfAddressingIdentifier,
    last_vc_event_hash: SelfAddressingIdentifier,
    state: &ManagerTelState,
    derivation: Option<&HashFunctionCode>,
    serialization_format: Option<&SerializationFormats>,
) -> Result<Event, Error> {
    let rev = VCEventType::Rev(SimpleRevocation {
        registry_id: state.prefix.clone(),
        prev_event_hash: last_vc_event_hash,
    });
    let vc_prefix = IdentifierPrefix::self_addressing(vc_hash.to_owned());

    Ok(Event::Vc(
        VCEvent::new(vc_prefix, state.sn + 1, rev).to_message(
            *serialization_format.unwrap_or(&SerializationFormats::JSON),
            derivation.unwrap_or(&HashFunctionCode::Blake3_256).clone(),
        )?,
    ))
}

pub fn make_revoke_event(
    vc_hash: &SelfAddressingIdentifier,
    last_vc_event_hash: SelfAddressingIdentifier,
    state: &ManagerTelState,
    derivation: Option<&HashFunctionCode>,
    serialization_format: Option<&SerializationFormats>,
) -> Result<Event, Error> {
    let registry_anchor = EventSeal::new(state.prefix.to_owned(), state.sn, state.last.clone());
    let rev = VCEventType::Brv(Revocation {
        prev_event_hash: last_vc_event_hash,
        registry_anchor: Some(registry_anchor),
    });
    let vc_prefix = IdentifierPrefix::self_addressing(vc_hash.to_owned());

    Ok(Event::Vc(
        VCEvent::new(vc_prefix, state.sn + 1, rev).to_message(
            *serialization_format.unwrap_or(&SerializationFormats::JSON),
            derivation.unwrap_or(&HashFunctionCode::Blake3_256).clone(),
        )?,
    ))
}