Change-Id: Iab7e00cc26a4f9727d3ab98691ef379921a33052 Reviewed-on: https://cl.tvl.fyi/c/depot/+/5240 Tested-by: BuildkiteCI Reviewed-by: kanepyork <rikingcoding@gmail.com> Reviewed-by: Profpatsch <mail@profpatsch.de> Reviewed-by: grfn <grfn@gws.fyi> Reviewed-by: tazjin <tazjin@tvl.su>
		
			
				
	
	
		
			119 lines
		
	
	
	
		
			3.8 KiB
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			119 lines
		
	
	
	
		
			3.8 KiB
		
	
	
	
		
			Rust
		
	
	
	
	
	
extern crate semver;
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extern crate toml;
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use std::io::Write;
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/// reads a security advisory of the form
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/// https://github.com/RustSec/advisory-db/blob/a24932e220dfa9be8b0b501210fef8a0bc7ef43e/EXAMPLE_ADVISORY.md
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/// and a crate version number,
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/// and returns 0 if the crate version is patched
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/// and returns 1 if the crate version is *not* patched
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///
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/// If PRINT_ADVISORY is set, the advisory is printed if it matches.
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fn main() {
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    let mut args = std::env::args_os();
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    let file = args.nth(1).expect("security advisory md file is $1");
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    let crate_version = args
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        .nth(0)
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        .expect("crate version is $2")
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        .into_string()
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        .expect("crate version string not utf8");
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    let crate_version = semver::Version::parse(&crate_version)
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        .expect(&format!("this is not a semver version: {}", &crate_version));
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    let filename = file.to_string_lossy();
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    let content = std::fs::read(&file).expect(&format!("could not read {}", filename));
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    let content = std::str::from_utf8(&content)
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        .expect(&format!("file {} was not encoded as utf-8", filename));
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    let content = content.trim_start();
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    let toml_start = content
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        .strip_prefix("```toml")
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        .expect(&format!("file did not start with ```toml: {}", filename));
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    let toml_end_index = toml_start.find("```").expect(&format!(
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        "the toml section did not end, no `` found: {}",
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        filename
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    ));
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    let toml = &toml_start[..toml_end_index];
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    let toml: toml::Value = toml::de::from_slice(toml.as_bytes())
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        .expect(&format!("could not parse toml: {}", filename));
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    let versions = toml
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        .as_table()
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        .expect(&format!("the toml is not a table: {}", filename))
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        .get("versions")
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        .expect(&format!(
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            "the toml does not contain the versions field: {}",
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            filename
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        ))
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        .as_table()
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        .expect(&format!(
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            "the toml versions field must be a table: {}",
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            filename
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        ));
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    let unaffected = match versions.get("unaffected") {
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        Some(u) => u
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            .as_array()
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            .expect(&format!(
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                "the toml versions.unaffected field must be a list of semvers: {}",
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                filename
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            ))
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            .iter()
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            .map(|v| {
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                semver::VersionReq::parse(
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                    v.as_str()
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                        .expect(&format!("the version field {} is not a string", v)),
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                )
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                .expect(&format!(
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                    "the version field {} is not a valid semver VersionReq",
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                    v
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                ))
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            })
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            .collect(),
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        None => vec![],
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    };
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    let mut patched: Vec<semver::VersionReq> = versions
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        .get("patched")
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        .expect(&format!(
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            "the toml versions.patched field must exist: {}",
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            filename
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        ))
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        .as_array()
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        .expect(&format!(
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            "the toml versions.patched field must be a list of semvers: {}",
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            filename
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        ))
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        .iter()
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        .map(|v| {
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            semver::VersionReq::parse(
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                v.as_str()
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                    .expect(&format!("the version field {} is not a string", v)),
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            )
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            .expect(&format!(
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                "the version field {} is not a valid semver VersionReq",
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                v
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            ))
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        })
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        .collect();
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    patched.extend_from_slice(&unaffected[..]);
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    let is_patched_or_unaffected = patched.iter().any(|req| req.matches(&crate_version));
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    if is_patched_or_unaffected {
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        std::process::exit(0);
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    } else {
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        if std::env::var_os("PRINT_ADVISORY").is_some() {
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            write!(
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                std::io::stderr(),
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                "Advisory {} matched!\n{}\n",
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                filename,
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                content
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            )
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            .unwrap();
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        }
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        std::process::exit(1);
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    }
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}
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