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
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173

use solana_sdk::message::{v0::LoadedMessage, Message};

#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq)]
#[serde(rename_all = "camelCase")]
pub struct ParsedAccount {
    pub pubkey: String,
    pub writable: bool,
    pub signer: bool,
    pub source: Option<ParsedAccountSource>,
}

#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq)]
#[serde(rename_all = "camelCase")]
pub enum ParsedAccountSource {
    Transaction,
    LookupTable,
}

pub fn parse_legacy_message_accounts(message: &Message) -> Vec<ParsedAccount> {
    let mut accounts: Vec<ParsedAccount> = vec![];
    for (i, account_key) in message.account_keys.iter().enumerate() {
        accounts.push(ParsedAccount {
            pubkey: account_key.to_string(),
            writable: message.is_writable(i),
            signer: message.is_signer(i),
            source: Some(ParsedAccountSource::Transaction),
        });
    }
    accounts
}

pub fn parse_v0_message_accounts(message: &LoadedMessage) -> Vec<ParsedAccount> {
    let mut accounts: Vec<ParsedAccount> = vec![];
    for (i, account_key) in message.account_keys().iter().enumerate() {
        let source = if i < message.static_account_keys().len() {
            ParsedAccountSource::Transaction
        } else {
            ParsedAccountSource::LookupTable
        };
        accounts.push(ParsedAccount {
            pubkey: account_key.to_string(),
            writable: message.is_writable(i),
            signer: message.is_signer(i),
            source: Some(source),
        });
    }
    accounts
}

#[cfg(test)]
mod test {
    use {
        super::*,
        solana_sdk::{
            message::{v0, v0::LoadedAddresses, MessageHeader},
            pubkey::Pubkey,
        },
    };

    #[test]
    fn test_parse_legacy_message_accounts() {
        let pubkey0 = Pubkey::new_unique();
        let pubkey1 = Pubkey::new_unique();
        let pubkey2 = Pubkey::new_unique();
        let pubkey3 = Pubkey::new_unique();
        let message = Message {
            header: MessageHeader {
                num_required_signatures: 2,
                num_readonly_signed_accounts: 1,
                num_readonly_unsigned_accounts: 1,
            },
            account_keys: vec![pubkey0, pubkey1, pubkey2, pubkey3],
            ..Message::default()
        };

        assert_eq!(
            parse_legacy_message_accounts(&message),
            vec![
                ParsedAccount {
                    pubkey: pubkey0.to_string(),
                    writable: true,
                    signer: true,
                    source: Some(ParsedAccountSource::Transaction),
                },
                ParsedAccount {
                    pubkey: pubkey1.to_string(),
                    writable: false,
                    signer: true,
                    source: Some(ParsedAccountSource::Transaction),
                },
                ParsedAccount {
                    pubkey: pubkey2.to_string(),
                    writable: true,
                    signer: false,
                    source: Some(ParsedAccountSource::Transaction),
                },
                ParsedAccount {
                    pubkey: pubkey3.to_string(),
                    writable: false,
                    signer: false,
                    source: Some(ParsedAccountSource::Transaction),
                },
            ]
        );
    }

    #[test]
    fn test_parse_v0_message_accounts() {
        let pubkey0 = Pubkey::new_unique();
        let pubkey1 = Pubkey::new_unique();
        let pubkey2 = Pubkey::new_unique();
        let pubkey3 = Pubkey::new_unique();
        let pubkey4 = Pubkey::new_unique();
        let pubkey5 = Pubkey::new_unique();
        let message = LoadedMessage::new(
            v0::Message {
                header: MessageHeader {
                    num_required_signatures: 2,
                    num_readonly_signed_accounts: 1,
                    num_readonly_unsigned_accounts: 1,
                },
                account_keys: vec![pubkey0, pubkey1, pubkey2, pubkey3],
                ..v0::Message::default()
            },
            LoadedAddresses {
                writable: vec![pubkey4],
                readonly: vec![pubkey5],
            },
        );

        assert_eq!(
            parse_v0_message_accounts(&message),
            vec![
                ParsedAccount {
                    pubkey: pubkey0.to_string(),
                    writable: true,
                    signer: true,
                    source: Some(ParsedAccountSource::Transaction),
                },
                ParsedAccount {
                    pubkey: pubkey1.to_string(),
                    writable: false,
                    signer: true,
                    source: Some(ParsedAccountSource::Transaction),
                },
                ParsedAccount {
                    pubkey: pubkey2.to_string(),
                    writable: true,
                    signer: false,
                    source: Some(ParsedAccountSource::Transaction),
                },
                ParsedAccount {
                    pubkey: pubkey3.to_string(),
                    writable: false,
                    signer: false,
                    source: Some(ParsedAccountSource::Transaction),
                },
                ParsedAccount {
                    pubkey: pubkey4.to_string(),
                    writable: true,
                    signer: false,
                    source: Some(ParsedAccountSource::LookupTable),
                },
                ParsedAccount {
                    pubkey: pubkey5.to_string(),
                    writable: false,
                    signer: false,
                    source: Some(ParsedAccountSource::LookupTable),
                },
            ]
        );
    }
}