tirith 0.4.1

Terminal security - catches homograph attacks, pipe-to-shell, ANSI injection
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

use tirith_core::receipt::Receipt;

fn print_no_receipts_hint() {
    eprintln!("tirith: no download receipts found");
    if let Some(dir) = tirith_core::policy::data_dir() {
        eprintln!(
            "  `tirith run` records download receipts under {}; shell execution receipts are a separate store",
            dir.join("receipts").display()
        );
    }
}

pub fn last(json: bool) -> i32 {
    match Receipt::list() {
        Ok(receipts) => {
            if let Some(r) = receipts.first() {
                if json {
                    // Public DTO: credential-bearing URL userinfo is redacted
                    // and local-machine metadata (cwd) omitted (repo-0415).
                    if serde_json::to_writer_pretty(std::io::stdout().lock(), &r.public_view())
                        .is_err()
                    {
                        eprintln!("tirith: failed to write JSON output");
                        return 1;
                    }
                    println!();
                } else {
                    print_receipt(r);
                }
                0
            } else {
                print_no_receipts_hint();
                1
            }
        }
        Err(e) => {
            eprintln!("tirith: {e}");
            1
        }
    }
}

pub fn list(json: bool) -> i32 {
    match Receipt::list() {
        Ok(receipts) => {
            if json {
                let public: Vec<_> = receipts.iter().map(|r| r.public_view()).collect();
                if serde_json::to_writer_pretty(std::io::stdout().lock(), &public).is_err() {
                    eprintln!("tirith: failed to write JSON output");
                    return 1;
                }
                println!();
            } else if receipts.is_empty() {
                print_no_receipts_hint();
            } else {
                for r in &receipts {
                    eprintln!(
                        "  {} {} ({} bytes) {}",
                        tirith_core::receipt::short_hash(&r.sha256),
                        super::sanitize_for_human_output(&r.url, false),
                        r.size,
                        r.timestamp
                    );
                }
            }
            0
        }
        Err(e) => {
            eprintln!("tirith: {e}");
            1
        }
    }
}

pub fn verify(sha256: &str, json: bool) -> i32 {
    match Receipt::load(sha256) {
        Ok(r) => match r.verify() {
            Ok(valid) => {
                if json {
                    let out = serde_json::json!({
                        "sha256": sha256,
                        "valid": valid,
                        // Same discipline as `last --json` / `list --json`:
                        // stored URLs may carry userinfo and machine-readable
                        // output must never re-emit credentials.
                        "url": tirith_core::receipt::redact_url_userinfo(&r.url),
                    });
                    if serde_json::to_writer_pretty(std::io::stdout().lock(), &out).is_err() {
                        eprintln!("tirith: failed to write JSON output");
                        return 1;
                    }
                    println!();
                } else if valid {
                    eprintln!(
                        "tirith: receipt {} verified OK",
                        tirith_core::receipt::short_hash(sha256)
                    );
                } else {
                    eprintln!(
                        "tirith: receipt {} FAILED verification",
                        tirith_core::receipt::short_hash(sha256)
                    );
                }
                if valid {
                    0
                } else {
                    1
                }
            }
            Err(e) => {
                eprintln!("tirith: verify failed: {e}");
                1
            }
        },
        Err(e) => {
            eprintln!("tirith: {e}");
            1
        }
    }
}

fn print_receipt(r: &Receipt) {
    eprintln!("tirith: receipt");
    eprintln!(
        "  url:       {}",
        super::sanitize_for_human_output(&r.url, false)
    );
    if let Some(ref fu) = r.final_url {
        eprintln!(
            "  final_url: {}",
            super::sanitize_for_human_output(fu, false)
        );
    }
    eprintln!("  sha256:    {}", r.sha256);
    eprintln!("  size:      {} bytes", r.size);
    eprintln!(
        "  analyzed:  {}",
        super::sanitize_for_human_output(&r.analysis_method, false)
    );
    eprintln!(
        "  privilege: {}",
        super::sanitize_for_human_output(&r.privilege, false)
    );
    eprintln!("  when:      {}", r.timestamp);
    if !r.domains_referenced.is_empty() {
        eprintln!(
            "  domains:   {}",
            super::sanitize_for_human_output(&r.domains_referenced.join(", "), false)
        );
    }
}