58f0e5ab74
As described in detail in `codex-rs/execpolicy/README.md` introduced in
this PR, `execpolicy` is a tool that lets you define a set of _patterns_
used to match [`execv(3)`](https://linux.die.net/man/3/execv)
invocations. When a pattern is matched, `execpolicy` returns the parsed
version in a structured form that is amenable to static analysis.
The primary use case is to define patterns match commands that should be
auto-approved by a tool such as Codex. This supports a richer pattern
matching mechanism that the sort of prefix-matching we have done to
date, e.g.:
5e40d9d221/codex-cli/src/approvals.ts (L333-L354)
Note we are still playing with the API and the `system_path` option in
particular still needs some work.
86 lines
2.2 KiB
Rust
86 lines
2.2 KiB
Rust
extern crate codex_execpolicy;
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use codex_execpolicy::get_default_policy;
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use codex_execpolicy::ArgMatcher;
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use codex_execpolicy::ArgType;
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use codex_execpolicy::Error;
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use codex_execpolicy::ExecCall;
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use codex_execpolicy::MatchedArg;
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use codex_execpolicy::MatchedExec;
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use codex_execpolicy::Policy;
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use codex_execpolicy::Result;
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use codex_execpolicy::ValidExec;
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fn setup() -> Policy {
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get_default_policy().expect("failed to load default policy")
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}
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#[test]
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fn test_cp_no_args() {
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let policy = setup();
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let cp = ExecCall::new("cp", &[]);
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assert_eq!(
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Err(Error::NotEnoughArgs {
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program: "cp".to_string(),
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args: vec![],
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arg_patterns: vec![ArgMatcher::ReadableFiles, ArgMatcher::WriteableFile]
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}),
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policy.check(&cp)
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)
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}
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#[test]
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fn test_cp_one_arg() {
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let policy = setup();
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let cp = ExecCall::new("cp", &["foo/bar"]);
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assert_eq!(
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Err(Error::VarargMatcherDidNotMatchAnything {
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program: "cp".to_string(),
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matcher: ArgMatcher::ReadableFiles,
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}),
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policy.check(&cp)
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);
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}
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#[test]
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fn test_cp_one_file() -> Result<()> {
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let policy = setup();
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let cp = ExecCall::new("cp", &["foo/bar", "../baz"]);
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assert_eq!(
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Ok(MatchedExec::Match {
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exec: ValidExec::new(
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"cp",
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vec![
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MatchedArg::new(0, ArgType::ReadableFile, "foo/bar")?,
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MatchedArg::new(1, ArgType::WriteableFile, "../baz")?,
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],
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&["/bin/cp", "/usr/bin/cp"]
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)
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}),
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policy.check(&cp)
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);
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Ok(())
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}
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#[test]
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fn test_cp_multiple_files() -> Result<()> {
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let policy = setup();
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let cp = ExecCall::new("cp", &["foo", "bar", "baz"]);
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assert_eq!(
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Ok(MatchedExec::Match {
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exec: ValidExec::new(
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"cp",
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vec![
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MatchedArg::new(0, ArgType::ReadableFile, "foo")?,
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MatchedArg::new(1, ArgType::ReadableFile, "bar")?,
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MatchedArg::new(2, ArgType::WriteableFile, "baz")?,
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],
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&["/bin/cp", "/usr/bin/cp"]
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)
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}),
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policy.check(&cp)
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);
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Ok(())
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}
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