luct-extension 0.2.0

Core types and parsers for certificate transparency
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

use crate::{USER_AGENT, store::browser_local_store};
use luct_otlsp::OtlspClientConfig;
use luct_scanner::ScannerConfig;
use serde::{Deserialize, Serialize};
use url::Url;
use web_time::Duration;

/// Loads the config from the local store
///
/// If no settings exist, it will create some
pub fn load_config() -> Result<ExtensionConfig, String> {
    let store = browser_local_store()?;

    let settings = match store
        .get_item("settings")
        .map_err(|err| err.as_string().unwrap())?
    {
        Some(settings) => serde_json::from_str::<ExtensionConfig>(&settings),
        None => {
            tracing::info!("Could not find a config. Initalizing with default");
            let settings = serde_json::from_str::<ExtensionConfig>("{}").unwrap();
            Ok(settings)
        }
    }
    .map_err(|err| err.to_string())?;

    store
        .set_item("settings", &serde_json::to_string(&settings).unwrap())
        .map_err(|err| err.as_string().unwrap())?;

    Ok(settings)
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ExtensionConfig {
    #[serde(default = "default_false")]
    validate_cert_chain: bool,

    #[serde(default = "default_true")]
    use_otlsp: bool,

    #[serde(default = "default_otlsp_url")]
    otlsp_url: String,

    #[serde(default = "default_otlsp_connection_timeout")]
    otlsp_connection_timeout: u64,

    #[serde(default = "default_sth_freshness_threshold")]
    sth_freshness_threshold: u64,

    #[serde(default = "default_sth_update_threshold")]
    sth_update_threshold: u64,

    #[serde(default = "default_report_lru_cache")]
    report_lru_cache: usize,

    #[serde(default = "default_false")]
    debug_output: bool,
}

impl ExtensionConfig {
    pub fn report_lru_cache(&self) -> usize {
        self.report_lru_cache
    }
}

fn default_otlsp_url() -> String {
    "https://node.luct.dev/otlsp".to_string()
}

fn default_otlsp_connection_timeout() -> u64 {
    30
}

fn default_sth_freshness_threshold() -> u64 {
    24 * 60 * 60
}

fn default_sth_update_threshold() -> u64 {
    8 * 60 * 60
}

fn default_report_lru_cache() -> usize {
    1000
}

fn default_true() -> bool {
    true
}

fn default_false() -> bool {
    false
}

impl TryFrom<&ExtensionConfig> for ScannerConfig {
    type Error = String;

    fn try_from(config: &ExtensionConfig) -> Result<Self, Self::Error> {
        let config = ScannerConfig::builder()
            .validate_cert_chain(config.validate_cert_chain)
            .sth_freshness_threshold(Duration::from_secs(config.sth_freshness_threshold))
            .sth_update_threshold(Duration::from_secs(config.sth_update_threshold))
            .build()
            .map_err(|err| err.to_string())?;

        Ok(config)
    }
}

impl TryFrom<&ExtensionConfig> for OtlspClientConfig {
    type Error = String;

    fn try_from(config: &ExtensionConfig) -> Result<Self, Self::Error> {
        let config = OtlspClientConfig::builder()
            .agent(USER_AGENT.to_string())
            .proxy_url(if config.use_otlsp {
                Some(Url::parse(&config.otlsp_url).map_err(|err| err.to_string())?)
            } else {
                None
            })
            .connection_timeout(Duration::from_secs(config.otlsp_connection_timeout))
            .build()
            .map_err(|err| err.to_string())?;

        Ok(config)
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use wasm_bindgen_test::wasm_bindgen_test;

    wasm_bindgen_test::wasm_bindgen_test_configure!(run_in_browser);

    #[test]
    fn default_config() {
        serde_json::from_str::<ExtensionConfig>("{}").unwrap();
    }

    #[wasm_bindgen_test]
    fn initalize_config() {
        load_config().unwrap();
    }
}