54 lines
1.7 KiB
Rust
54 lines
1.7 KiB
Rust
use once_cell::sync::Lazy;
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use regex::Regex;
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pub fn normalize(path: &str) -> String {
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let mut path = path.trim().trim_end_matches(['/', '\\']).replace('\\', "/");
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static CONSECUTIVE_SLASHES: Lazy<Regex> = Lazy::new(|| Regex::new(r"/{2,}").unwrap());
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static UNNECESSARY_DOUBLE_STAR_1: Lazy<Regex> = Lazy::new(|| Regex::new(r"([^/*])\*{2,}").unwrap());
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static UNNECESSARY_DOUBLE_STAR_2: Lazy<Regex> = Lazy::new(|| Regex::new(r"\*{2,}([^/*])").unwrap());
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static ENDING_WILDCARD: Lazy<Regex> = Lazy::new(|| Regex::new(r"(/\*)+$").unwrap());
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static ENDING_DOT: Lazy<Regex> = Lazy::new(|| Regex::new(r"(/\.)$").unwrap());
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static INTERMEDIATE_DOT: Lazy<Regex> = Lazy::new(|| Regex::new(r"(/\./)").unwrap());
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for (pattern, replacement) in [
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(&CONSECUTIVE_SLASHES, "/"),
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(&UNNECESSARY_DOUBLE_STAR_1, "${1}*"),
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(&UNNECESSARY_DOUBLE_STAR_2, "*${1}"),
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(&ENDING_WILDCARD, ""),
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(&ENDING_DOT, ""),
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(&INTERMEDIATE_DOT, "/"),
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] {
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path = pattern.replace_all(&path, replacement).to_string();
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}
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path
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}
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fn too_broad(path: &str) -> bool {
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let path = path.to_lowercase();
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let valid = &["hkey_current_user", "hkey_local_machine"];
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if !valid.iter().any(|x| path.starts_with(x)) {
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return true;
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}
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for item in [
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"hkey_current_user",
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"hkey_current_user/software",
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"hkey_current_user/software/wow6432node",
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"hkey_local_machine",
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"hkey_local_machine/software",
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"hkey_local_machine/software/wow6432node",
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] {
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if path == item {
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return true;
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}
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}
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false
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}
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pub fn usable(path: &str) -> bool {
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!path.is_empty() && !path.contains("{{") && !too_broad(path)
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}
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