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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| 
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| use std::io::Write;
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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