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38cbebaf3f
## Why Credential brokerage must retain trusted destination hints even when shell environment policy hides them from child processes. Snapshot replay also needs to preserve credential aliases when tokens are short or captured dummy values change. ## What changed - Add `features.network_proxy.credentials` and preserve provider settings when toggling the proxy. Prevent project configuration from overriding providers or their credential and destination environment variables. - Use provider metadata throughout snapshot capture and replay, and pass hidden destination context to the broker without exposing it in the child environment. - Rewrite aliases containing short credentials or previously captured dummies, respecting environment filters and explicit overrides. - Preserve case-distinct `shell_environment_policy.set` keys so Windows credential ambiguity checks survive configuration merging and permission profile changes. - Restore independent MITM settings when credential brokerage is disabled. ## Testing Add regression coverage for custom providers, hidden destination hints, Bash and Zsh alias replay, configuration edits and merging, Windows ambiguity handling, and credential protection during approved execution. GitOrigin-RevId: b2bd935d2d8555be56baf8feb1a8e5b3a0c666bc
2236 lines
87 KiB
Rust
2236 lines
87 KiB
Rust
use super::CapturedSnapshot;
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use super::PreparedSnapshot;
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use super::SnapshotCaptureOptions;
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use super::SnapshotCredentialEnvironment;
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use super::SnapshotStartup;
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use super::prepare_snapshot_credentials;
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use super::snapshot_capture_script;
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use crate::shell_detect::ShellType;
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use anyhow::Context;
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use anyhow::Result;
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use pretty_assertions::assert_eq;
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use std::collections::HashMap;
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use std::os::unix::process::CommandExt;
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use std::process::Command;
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use tempfile::tempdir;
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fn empty_snapshot_credentials<'a>(
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empty: &'a HashMap<String, String>,
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is_allowed_unset: &'a dyn Fn(&str) -> bool,
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) -> SnapshotCredentialEnvironment<'a> {
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SnapshotCredentialEnvironment {
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original: empty,
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restored: empty,
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configured: empty,
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discovered: empty,
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allowed: empty,
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is_allowed_unset,
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brokered_keys: &[],
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brokered_alias_keys: &[],
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allowed_brokered_keys: &[],
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}
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}
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const CAPTURE_ALL: SnapshotCaptureOptions = SnapshotCaptureOptions {
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startup: SnapshotStartup::Interactive,
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declarations: true,
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environment: true,
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};
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const CAPTURE_NON_INTERACTIVE: SnapshotCaptureOptions = SnapshotCaptureOptions {
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startup: SnapshotStartup::NonInteractive,
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..CAPTURE_ALL
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};
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fn snapshot_script(shell_type: ShellType) -> Option<String> {
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snapshot_capture_script(shell_type, CAPTURE_ALL)
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}
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#[test]
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fn snapshot_capture_requires_marker_and_complete_records() {
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for captured in [
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"missing header\0\0\0",
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"# Snapshot file\n\0",
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"# Snapshot file\n\0\0NAME\0export NAME=value\n",
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] {
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assert!(CapturedSnapshot::parse(ShellType::Bash, captured.as_bytes()).is_none());
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}
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}
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#[test]
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fn snapshot_capture_selects_declarations_and_environment() -> Result<()> {
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let dir = tempdir()?;
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for (shell, shell_type) in [
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("/bin/bash", ShellType::Bash),
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("/bin/sh", ShellType::Sh),
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("/bin/zsh", ShellType::Zsh),
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] {
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if !std::path::Path::new(shell).exists() {
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continue;
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}
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for (declarations, environment) in
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[(true, false), (false, true), (true, true), (false, false)]
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{
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let script = snapshot_capture_script(
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shell_type,
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SnapshotCaptureOptions {
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startup: SnapshotStartup::NonInteractive,
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declarations,
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environment,
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},
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)
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.unwrap();
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let output = Command::new(shell)
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.args(["-c", &script])
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.env_clear()
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.env("HOME", dir.path())
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.env("PATH", "/usr/bin:/bin")
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.env("APP_SETTING", "value")
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.output()?;
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assert!(output.status.success(), "{shell}: {output:?}");
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let captured = CapturedSnapshot::parse(shell_type, &output.stdout).unwrap();
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assert_eq!(
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(
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captured
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.exports
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.iter()
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.any(|export| export.key == "APP_SETTING"),
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captured
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.environment
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.split(|byte| *byte == 0)
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.any(|entry| entry == b"APP_SETTING=value"),
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),
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(declarations, environment),
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"{shell}"
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);
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}
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}
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Ok(())
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}
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#[test]
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fn bash_snapshot_filters_invalid_exports() -> Result<()> {
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let output = Command::new("/bin/bash")
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.arg("-c")
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.arg(snapshot_script(ShellType::Bash).expect("bash supports snapshots"))
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.env("BASH_ENV", "/dev/null")
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.env("VALID_NAME", "ok")
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.env("PWD", "/tmp/stale")
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.env("NEXTEST_BIN_EXE_codex-write-config-schema", "/path/to/bin")
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.env("BAD-NAME", "broken")
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.output()?;
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assert!(output.status.success());
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let stdout = captured_script(ShellType::Bash, &String::from_utf8(output.stdout)?)?;
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assert!(stdout.contains("VALID_NAME"));
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assert!(!stdout.contains("PWD=/tmp/stale"));
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assert!(!stdout.contains("NEXTEST_BIN_EXE_codex-write-config-schema"));
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assert!(!stdout.contains("BAD-NAME"));
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Ok(())
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}
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#[test]
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fn bash_snapshot_preserves_multiline_exports() -> Result<()> {
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let multiline_cert = "-----BEGIN CERTIFICATE-----\nabc\n-----END CERTIFICATE-----";
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let output = Command::new("/bin/bash")
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.arg("-c")
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.arg(snapshot_script(ShellType::Bash).expect("bash supports snapshots"))
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.env("BASH_ENV", "/dev/null")
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.env("MULTILINE_CERT", multiline_cert)
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.output()?;
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assert!(output.status.success());
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let stdout = captured_script(ShellType::Bash, &String::from_utf8(output.stdout)?)?;
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assert!(
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stdout.contains("MULTILINE_CERT=") || stdout.contains("MULTILINE_CERT"),
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"snapshot should include the multiline export name"
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);
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let dir = tempdir()?;
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let snapshot_path = dir.path().join("snapshot.sh");
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std::fs::write(&snapshot_path, stdout.as_bytes())?;
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let validate = Command::new("/bin/bash")
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.arg("-c")
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.arg("set -e; . \"$1\"")
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.arg("bash")
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.arg(&snapshot_path)
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.env("BASH_ENV", "/dev/null")
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.output()?;
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assert!(
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validate.status.success(),
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"snapshot validation failed: {}",
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String::from_utf8_lossy(&validate.stderr)
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);
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Ok(())
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}
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#[test]
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fn snapshot_environment_preserves_native_path_exports_and_shell_level() -> Result<()> {
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let dir = tempdir()?;
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for (shell, shell_type, setup) in [
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("/bin/bash", ShellType::Bash, "export -n PATH"),
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("/bin/zsh", ShellType::Zsh, "typeset +x PATH"),
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] {
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if !std::path::Path::new(shell).exists() {
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continue;
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}
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let run = |script: &str| {
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// Keep Bash's final-command exec optimization from decrementing SHLVL.
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Command::new(shell)
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.args(["-c", &format!("{setup}\n{script}\n:")])
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.env_clear()
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.env("HOME", dir.path())
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.env("PATH", "/usr/bin:/bin")
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.env("SHLVL", "3")
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.output()
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};
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let native = run("/usr/bin/env -0")?;
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let script = snapshot_capture_script(
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shell_type,
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SnapshotCaptureOptions {
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startup: SnapshotStartup::NonInteractive,
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..CAPTURE_ALL
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},
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)
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.unwrap();
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let output = run(&script)?;
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assert!(native.status.success() && output.status.success());
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let captured = CapturedSnapshot::parse(shell_type, &output.stdout).unwrap();
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let metadata = |environment: &[u8]| {
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environment
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.split(|byte| *byte == 0)
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.filter(|entry| entry.starts_with(b"PATH=") || entry.starts_with(b"SHLVL="))
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.map(<[u8]>::to_vec)
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.collect::<Vec<_>>()
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};
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assert_eq!(
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metadata(captured.environment),
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metadata(&native.stdout),
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"{shell}"
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);
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}
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Ok(())
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}
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#[test]
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fn sh_declarations_preserve_path_export_state() -> Result<()> {
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let dir = tempdir()?;
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let snapshot_path = dir.path().join("snapshot.sh");
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let script = snapshot_capture_script(
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ShellType::Sh,
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SnapshotCaptureOptions {
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startup: SnapshotStartup::NonInteractive,
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..CAPTURE_ALL
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},
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)
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.expect("sh supports snapshots");
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for shell in [
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"/bin/sh",
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#[cfg(target_os = "macos")]
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"/bin/dash",
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] {
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if !std::path::Path::new(shell).exists() {
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continue;
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}
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for (setup, expected) in [
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("PATH=/enterprise/bin; export PATH", "x:/enterprise/bin"),
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("PATH=; export PATH", "x:"),
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("unset PATH; export PATH", ":"),
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("unset PATH; PATH=/enterprise/bin", ":"),
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] {
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let captured = Command::new(shell)
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.args(["-uc", &format!("{setup}\n{script}")])
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.env_clear()
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.output()?;
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assert!(captured.status.success(), "capture failed: {captured:?}");
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std::fs::write(
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&snapshot_path,
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captured_script(ShellType::Sh, &String::from_utf8(captured.stdout)?)?,
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)?;
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let restored = Command::new(shell)
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.args([
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"-c",
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"unset PATH; . \"$1\"; printf '%s:%s' \"${PATH+x}\" \"${PATH-}\"",
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"snapshot",
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])
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.arg(&snapshot_path)
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.env_clear()
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.output()?;
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assert!(restored.status.success(), "replay failed: {restored:?}");
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assert_eq!(restored.stdout, expected.as_bytes(), "{setup}");
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}
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}
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Ok(())
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}
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#[test]
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fn posix_startup_path_expansion_preserves_supported_forms() -> Result<()> {
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let script = format!(
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"{}\n__codex_snapshot_expand_env \"$ENV\"",
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super::posix_env_path_expansion_function()
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);
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let output = Command::new("/bin/sh")
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.arg("-uc")
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.arg(&script)
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.env("ENV", "$MISSING")
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.output()?;
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assert!(output.status.success(), "snapshot failed: {output:?}");
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assert_eq!(output.stdout, b"$MISSING");
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let dir = tempdir()?;
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let startup = dir.path().join("startup.sh");
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for (env_value, expansion_env) in [
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(
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startup.display().to_string(),
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Vec::<(String, String)>::new(),
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),
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(
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"$STARTUP_FILE".to_string(),
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vec![("STARTUP_FILE".to_string(), startup.display().to_string())],
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),
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(
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"${STARTUP_FILE}".to_string(),
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vec![("STARTUP_FILE".to_string(), startup.display().to_string())],
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),
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(
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"${STARTUP_DIR}/startup.sh".to_string(),
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vec![("STARTUP_DIR".to_string(), dir.path().display().to_string())],
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),
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(
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"${PATH%%:*}/startup.sh".to_string(),
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vec![(
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"PATH".to_string(),
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format!("{}:/usr/bin:/bin", dir.path().display()),
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)],
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),
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(
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"$PATH/startup.sh".to_string(),
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vec![("PATH".to_string(), dir.path().display().to_string())],
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),
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(
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"${PATH}/startup.sh".to_string(),
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vec![("PATH".to_string(), dir.path().display().to_string())],
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),
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(
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format!("$PATH{}", startup.display()),
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vec![("PATH".to_string(), String::new())],
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),
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(
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format!("${{PATH}}{}", startup.display()),
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vec![("PATH".to_string(), String::new())],
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),
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(
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"~/startup.sh".to_string(),
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vec![("HOME".to_string(), dir.path().display().to_string())],
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),
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] {
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let output = Command::new("/bin/sh")
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.arg("-uc")
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.arg(&script)
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.env("ENV", &env_value)
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.envs(expansion_env)
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.output()?;
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assert!(output.status.success(), "snapshot failed: {output:?}");
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assert_eq!(
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String::from_utf8(output.stdout)?,
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startup.display().to_string(),
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"ENV={env_value}"
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);
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}
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let default_startup_dir = dir.path().join(".config");
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for xdg_config_home in [
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None,
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Some(std::ffi::OsStr::new("")),
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Some(default_startup_dir.as_os_str()),
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] {
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let mut command = Command::new("/bin/sh");
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command
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.arg("-uc")
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.arg(&script)
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.env("HOME", dir.path())
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.env("ENV", "${XDG_CONFIG_HOME:-$HOME/.config}/startup.sh");
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if let Some(xdg_config_home) = xdg_config_home {
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command.env("XDG_CONFIG_HOME", xdg_config_home);
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} else {
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command.env_remove("XDG_CONFIG_HOME");
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}
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let output = command.output()?;
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|
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assert!(output.status.success(), "snapshot failed: {output:?}");
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assert_eq!(
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String::from_utf8(output.stdout)?,
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default_startup_dir.join("startup.sh").display().to_string()
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);
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}
|
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|
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let injected_marker = dir.path().join("env-injected");
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let injected_env = format!(
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"\"; touch '{}'; __codex_env_file=\"",
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injected_marker.display()
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);
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let output = Command::new("/bin/sh")
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.arg("-uc")
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.arg(&script)
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.env("ENV", injected_env)
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.output()?;
|
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assert!(output.status.success(), "snapshot failed: {output:?}");
|
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assert!(
|
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!injected_marker.exists(),
|
|
"snapshot interpreted ENV as shell source"
|
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);
|
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|
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Ok(())
|
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}
|
|
|
|
#[test]
|
|
fn brokered_snapshots_filter_complete_multiline_exports() -> Result<()> {
|
|
let dir = tempdir()?;
|
|
for (shell, shell_type) in [
|
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("/bin/bash", ShellType::Bash),
|
|
("/bin/sh", ShellType::Sh),
|
|
("/bin/dash", ShellType::Sh),
|
|
("/bin/zsh", ShellType::Zsh),
|
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] {
|
|
if !std::path::Path::new(shell).exists() {
|
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continue;
|
|
}
|
|
for value in [
|
|
"before\nexport NOT_A_REAL_VARIABLE=value\nafter",
|
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"before'\ndeclare -x NOT_A_REAL_VARIABLE=\"quoted\"\ntypeset OTHER=value\nafter\\",
|
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"before\t\n# exports 99\nexport NOT_A_REAL_VARIABLE=value\nafter",
|
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"certificate\nwith trailing newlines\n\n",
|
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"before\nexport NOT_A_REAL_VARIABLE\nafter",
|
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"before\nexport name=not_the_actual_value\nafter",
|
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] {
|
|
let original = HashMap::from([
|
|
("APP_SCRIPT".to_string(), value.to_string()),
|
|
("EXCLUDED_SCRIPT".to_string(), value.to_string()),
|
|
("ZZZ_AFTER".to_string(), "kept".to_string()),
|
|
("name".to_string(), "original name".to_string()),
|
|
("value".to_string(), "original value".to_string()),
|
|
("escaped".to_string(), "original escaped".to_string()),
|
|
]);
|
|
let mut allowed = original.clone();
|
|
allowed.remove("EXCLUDED_SCRIPT");
|
|
let function_value = "before\n# exports 1\nexport NOT_A_REAL_VARIABLE=value\nafter";
|
|
let capture_script = snapshot_capture_script(
|
|
shell_type,
|
|
SnapshotCaptureOptions {
|
|
startup: SnapshotStartup::NonInteractive,
|
|
..CAPTURE_ALL
|
|
},
|
|
)
|
|
.expect("shell supports snapshots");
|
|
let capture = if matches!(shell_type, ShellType::Sh) {
|
|
capture_script
|
|
} else {
|
|
format!("emit_source() {{ cat <<'EOF'\n{function_value}\nEOF\n}}\n{capture_script}")
|
|
};
|
|
let capture = if matches!(shell_type, ShellType::Sh | ShellType::Zsh) {
|
|
format!("export APP_SETTING EXCLUDED_SETTING\n{capture}")
|
|
} else {
|
|
capture
|
|
};
|
|
let captured = Command::new(shell)
|
|
.args(["-c", &capture])
|
|
.env_clear()
|
|
.envs(&original)
|
|
.env("PATH", "/usr/bin:/bin")
|
|
.output()?;
|
|
assert!(captured.status.success(), "{shell}: {captured:?}");
|
|
let mut snapshot = String::from_utf8(captured.stdout)?;
|
|
let records = CapturedSnapshot::parse(shell_type, snapshot.as_bytes()).unwrap();
|
|
assert_eq!(
|
|
records
|
|
.exports
|
|
.iter()
|
|
.filter(|export| export.key == "name")
|
|
.count(),
|
|
1,
|
|
"{shell}: duplicate export record"
|
|
);
|
|
if matches!(shell_type, ShellType::Sh) {
|
|
let raw_path = dir.path().join("raw-snapshot.sh");
|
|
std::fs::write(&raw_path, captured_script(shell_type, &snapshot)?)?;
|
|
let replayed = Command::new(shell)
|
|
.args(["-c", ". \"$1\"; printf '%s\\n' \"${APP_SETTING-unset}\"; APP_SETTING=production; /usr/bin/printenv APP_SETTING; NOT_A_REAL_VARIABLE=unexpected; /usr/bin/printenv NOT_A_REAL_VARIABLE", "snapshot"])
|
|
.arg(&raw_path)
|
|
.env_clear()
|
|
.output()?;
|
|
assert_eq!(
|
|
replayed.stdout, b"unset\nproduction\n",
|
|
"{shell}: {snapshot}"
|
|
);
|
|
assert_eq!(replayed.status.code(), Some(1));
|
|
}
|
|
rewrite_snapshot_credentials(
|
|
shell_type,
|
|
&mut snapshot,
|
|
SnapshotCredentialEnvironment {
|
|
original: &original,
|
|
restored: &original,
|
|
configured: &HashMap::new(),
|
|
discovered: &allowed,
|
|
allowed: &allowed,
|
|
is_allowed_unset: &|key| key == "APP_SETTING",
|
|
brokered_keys: &[],
|
|
brokered_alias_keys: &[],
|
|
allowed_brokered_keys: &[],
|
|
},
|
|
|_| true,
|
|
);
|
|
let path = dir.path().join("snapshot.sh");
|
|
std::fs::write(&path, snapshot)?;
|
|
let replayed = Command::new(shell)
|
|
.args(["-c", ". \"$1\"; printf '%s\\0%s\\0%s\\0%s\\0%s\\0%s' \"$APP_SCRIPT\" \"${EXCLUDED_SCRIPT-unset}\" \"$ZZZ_AFTER\" \"$name\" \"$value\" \"$escaped\"; if command -v emit_source >/dev/null; then emit_source; fi; APP_SETTING=production; EXCLUDED_SETTING=denied; /usr/bin/printenv APP_SETTING; /usr/bin/printenv EXCLUDED_SETTING || :", "snapshot"])
|
|
.arg(&path)
|
|
.env_clear()
|
|
.output()?;
|
|
assert!(replayed.status.success(), "{shell}: {replayed:?}");
|
|
let function_value = if matches!(shell_type, ShellType::Sh) {
|
|
String::new()
|
|
} else {
|
|
format!("{function_value}\n")
|
|
};
|
|
let exported_setting = if matches!(shell_type, ShellType::Sh | ShellType::Zsh) {
|
|
"production\n"
|
|
} else {
|
|
""
|
|
};
|
|
assert_eq!(
|
|
replayed.stdout,
|
|
format!("{value}\0unset\0kept\0original name\0original value\0original escaped{function_value}{exported_setting}").as_bytes(),
|
|
"{shell}"
|
|
);
|
|
}
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn brokered_zsh_snapshot_preserves_tied_credential_aliases() -> Result<()> {
|
|
if !std::path::Path::new("/bin/zsh").exists() {
|
|
return Ok(());
|
|
}
|
|
let dir = tempdir()?;
|
|
let real = "password$abcdefghijklmno";
|
|
let dummy = "dummy-0123456789abcdef";
|
|
let last = "ordinary'quote\nnext";
|
|
let brokered_keys = vec!["VENDOR_PASSWORD".to_string()];
|
|
for separator in [":", "|", "'", "\t", "$", "_", "x"] {
|
|
let appended = format!("ordinary{separator}other");
|
|
for (rcquotes, captured_credential) in [
|
|
(false, real),
|
|
(true, real),
|
|
(false, "captured$0123456789abcdef"),
|
|
(true, "pin_ab$cd"),
|
|
] {
|
|
let script = snapshot_capture_script(ShellType::Zsh, CAPTURE_NON_INTERACTIVE).unwrap();
|
|
let setup = format!(
|
|
"{}\nexport -UT SERVICE_URLS service_urls=( \"https://user:$VENDOR_PASSWORD@example.invalid/path\" '' {} ) {}\nservice_urls+=({})\n{script}",
|
|
if rcquotes {
|
|
"setopt rcquotes rcexpandparam"
|
|
} else {
|
|
":"
|
|
},
|
|
shlex::try_quote(last)?,
|
|
shlex::try_quote(separator)?,
|
|
shlex::try_quote(&appended)?,
|
|
);
|
|
let original = HashMap::from([
|
|
(
|
|
"VENDOR_PASSWORD".to_string(),
|
|
captured_credential.to_string(),
|
|
),
|
|
(
|
|
"SERVICE_URLS".to_string(),
|
|
[
|
|
format!("https://user:{captured_credential}@example.invalid/path"),
|
|
String::new(),
|
|
last.to_string(),
|
|
appended.clone(),
|
|
]
|
|
.join(separator),
|
|
),
|
|
]);
|
|
let captured = Command::new("/bin/zsh")
|
|
.args(["-fc", &setup])
|
|
.env_clear()
|
|
.env("VENDOR_PASSWORD", captured_credential)
|
|
.env("PATH", "/usr/bin:/bin")
|
|
.output()?;
|
|
assert!(captured.status.success(), "{captured:?}");
|
|
let mut snapshot = String::from_utf8(captured.stdout)?;
|
|
let allowed = original
|
|
.iter()
|
|
.map(|(key, value)| (key.clone(), value.replace(captured_credential, dummy)))
|
|
.collect::<HashMap<_, _>>();
|
|
let restored = original
|
|
.iter()
|
|
.map(|(key, value)| (key.clone(), value.replace(captured_credential, real)))
|
|
.collect::<HashMap<_, _>>();
|
|
let rewritten = rewrite_snapshot_credentials(
|
|
ShellType::Zsh,
|
|
&mut snapshot,
|
|
SnapshotCredentialEnvironment {
|
|
original: &original,
|
|
restored: &restored,
|
|
configured: &HashMap::new(),
|
|
discovered: &allowed,
|
|
allowed: &allowed,
|
|
is_allowed_unset: &|_| true,
|
|
brokered_keys: &brokered_keys,
|
|
brokered_alias_keys: &[],
|
|
allowed_brokered_keys: &brokered_keys,
|
|
},
|
|
|text| {
|
|
*text = text
|
|
.replace(real, dummy)
|
|
.replace(captured_credential, dummy);
|
|
true
|
|
},
|
|
)
|
|
.expect("tied export can be brokered");
|
|
assert_eq!(
|
|
rewritten.aliases,
|
|
HashMap::from([("SERVICE_URLS".to_string(), allowed["SERVICE_URLS"].clone())])
|
|
);
|
|
assert!(!snapshot.contains(real));
|
|
let path = dir.path().join("snapshot.sh");
|
|
std::fs::write(&path, &snapshot)?;
|
|
for live in [dummy, real] {
|
|
let replayed = Command::new("/bin/zsh")
|
|
.args(["-fc", "set -e; . \"$1\"; printf '%s\\0' \"$SERVICE_URLS\" \"${service_urls[@]}\" \"$options[rcquotes]\"", "snapshot"])
|
|
.arg(&path)
|
|
.env_clear()
|
|
.env("VENDOR_PASSWORD", live)
|
|
.output()?;
|
|
assert!(replayed.status.success(), "{replayed:?}");
|
|
let scalar = original["SERVICE_URLS"].replace(captured_credential, live);
|
|
let mut array = vec![
|
|
format!("https://user:{live}@example.invalid/path"),
|
|
String::new(),
|
|
last.to_string(),
|
|
];
|
|
array.push(appended.clone());
|
|
assert_eq!(
|
|
replayed.stdout,
|
|
format!(
|
|
"{scalar}\0{}\0{}\0",
|
|
array.join("\0"),
|
|
if rcquotes { "on" } else { "off" }
|
|
)
|
|
.into_bytes()
|
|
);
|
|
}
|
|
}
|
|
}
|
|
for unique in [false, true] {
|
|
for separator in [":", "|", "'", "\t"] {
|
|
let flags = if unique { "-UT" } else { "-T" };
|
|
let separator = shlex::try_quote(separator)?;
|
|
let binding = format!("export {flags} SERVICE_URLS service_urls {separator}");
|
|
let script = snapshot_capture_script(ShellType::Zsh, CAPTURE_NON_INTERACTIVE).unwrap();
|
|
let captured = Command::new("/bin/zsh")
|
|
.args([
|
|
"-fc",
|
|
&format!(
|
|
"export {flags} SERVICE_URLS service_urls=( '' \"$VENDOR_PASSWORD\" '' plain plain '' ) {separator}\nunset VENDOR_PASSWORD\n{script}"
|
|
),
|
|
])
|
|
.env_clear()
|
|
.env("VENDOR_PASSWORD", real)
|
|
.env("PATH", "/usr/bin:/bin")
|
|
.output()?;
|
|
assert!(captured.status.success(), "{captured:?}");
|
|
let mut snapshot = String::from_utf8(captured.stdout)?;
|
|
let original = CapturedSnapshot::parse(ShellType::Zsh, snapshot.as_bytes())
|
|
.unwrap()
|
|
.environment
|
|
.split(|byte| *byte == 0)
|
|
.filter_map(|entry| std::str::from_utf8(entry).ok()?.split_once('='))
|
|
.map(|(key, value)| (key.to_string(), value.to_string()))
|
|
.collect::<HashMap<_, _>>();
|
|
assert!(!original.contains_key("VENDOR_PASSWORD"));
|
|
let allowed = original
|
|
.iter()
|
|
.map(|(key, value)| (key.clone(), value.replace(real, dummy)))
|
|
.collect::<HashMap<_, _>>();
|
|
let alias_keys = vec!["SERVICE_URLS".to_string()];
|
|
let rewritten = rewrite_snapshot_credentials(
|
|
ShellType::Zsh,
|
|
&mut snapshot,
|
|
SnapshotCredentialEnvironment {
|
|
original: &original,
|
|
restored: &original,
|
|
configured: &HashMap::new(),
|
|
discovered: &allowed,
|
|
allowed: &allowed,
|
|
is_allowed_unset: &|_| true,
|
|
brokered_keys: &[],
|
|
brokered_alias_keys: &alias_keys,
|
|
allowed_brokered_keys: &[],
|
|
},
|
|
|text| {
|
|
*text = text.replace(real, dummy);
|
|
true
|
|
},
|
|
)
|
|
.expect("source-less tied alias can be brokered");
|
|
assert_eq!(rewritten.aliases, HashMap::new());
|
|
assert!(!snapshot.contains(real));
|
|
assert!(!snapshot.contains(dummy));
|
|
let path = dir.path().join("source-less-snapshot.sh");
|
|
std::fs::write(&path, &snapshot)?;
|
|
let inspect = "printf '%s\\0' \"${SERVICE_URLS-unset}\" \"${service_urls[@]}\" \"${(t)service_urls}\" \"${VENDOR_PASSWORD-unset}\"; if [ -n \"${SERVICE_URLS+x}\" ]; then SERVICE_URLS=$UPDATE; printf '%s\\0' \"$SERVICE_URLS\" \"${service_urls[@]}\"; unset SERVICE_URLS; fi; printf '%s:%s' \"${+SERVICE_URLS}\" \"${+service_urls}\"";
|
|
for live in [Some(allowed["SERVICE_URLS"].as_str()), Some(""), None] {
|
|
for source in [None, Some("different-live-source")] {
|
|
let mut outputs = Vec::new();
|
|
for script in [
|
|
format!("set -e; . \"$1\"; {inspect}"),
|
|
format!(
|
|
"set -e; if [ -n \"${{SERVICE_URLS+x}}\" ]; then {binding}; fi; {inspect}"
|
|
),
|
|
] {
|
|
let mut command = Command::new("/bin/zsh");
|
|
command
|
|
.args(["-fc", &script, "snapshot"])
|
|
.arg(&path)
|
|
.env_clear()
|
|
.env(
|
|
"UPDATE",
|
|
allowed["SERVICE_URLS"].replace(dummy, "new-live-dummy"),
|
|
);
|
|
if let Some(live) = live {
|
|
command.env("SERVICE_URLS", live);
|
|
}
|
|
if let Some(source) = source {
|
|
command.env("VENDOR_PASSWORD", source);
|
|
}
|
|
let output = command.output()?;
|
|
assert!(output.status.success(), "{script}: {output:?}");
|
|
outputs.push(String::from_utf8(output.stdout)?);
|
|
}
|
|
assert_eq!(outputs[0], outputs[1], "{binding}, {live:?}, {source:?}");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn brokered_snapshot_rejects_credentials_crossing_array_elements() {
|
|
let real = "password$abcdefghijklmno";
|
|
let dummy = "dummy-0123456789abcdef";
|
|
let keys = vec!["VENDOR_PASSWORD".to_string()];
|
|
let restored = HashMap::from([(keys[0].clone(), real.to_string())]);
|
|
for (captured_value, allowed_value) in [(real, dummy), (real, real), (dummy, dummy)] {
|
|
let original = HashMap::from([
|
|
(keys[0].clone(), captured_value.to_string()),
|
|
("AUTH_HEADER".to_string(), captured_value.to_string()),
|
|
]);
|
|
let allowed = HashMap::from([
|
|
(keys[0].clone(), allowed_value.to_string()),
|
|
("AUTH_HEADER".to_string(), allowed_value.to_string()),
|
|
]);
|
|
let (first, last) = captured_value.split_at(/*mid*/ 10);
|
|
let data = format!(
|
|
"# Snapshot file\n\0\0AUTH_HEADER\0typeset -xT AUTH_HEADER header=( '{first}' '{last}' ) ''\n\0\0"
|
|
);
|
|
let capture = CapturedSnapshot::parse(ShellType::Zsh, data.as_bytes()).unwrap();
|
|
let prepared = prepare_snapshot_credentials(
|
|
&capture,
|
|
SnapshotCredentialEnvironment {
|
|
original: &original,
|
|
restored: &restored,
|
|
configured: &HashMap::new(),
|
|
discovered: &allowed,
|
|
allowed: &allowed,
|
|
is_allowed_unset: &|_| true,
|
|
brokered_keys: &keys,
|
|
brokered_alias_keys: &[],
|
|
allowed_brokered_keys: &keys,
|
|
},
|
|
|text| {
|
|
*text = text.replace(real, allowed_value);
|
|
true
|
|
},
|
|
);
|
|
assert!(prepared.is_none(), "{captured_value}, {allowed_value}");
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn zsh_literal_bytes_match_native_modifiers() -> Result<()> {
|
|
if !std::path::Path::new("/bin/zsh").exists() {
|
|
return Ok(());
|
|
}
|
|
for word in [
|
|
r"$'\M-C\M-)'",
|
|
r"$'\xC3'$'\M-)'",
|
|
r"$'\M-\C-?'",
|
|
r"$'\C-\M-?'",
|
|
r"$'\C-\xC3'",
|
|
r"$'\M\x41'",
|
|
r"$'\M-\u0041X'",
|
|
r"$'\M-\q'",
|
|
] {
|
|
let script = format!("printf '%s' {word}");
|
|
let native = Command::new("/bin/zsh")
|
|
.args(["-fc", &script])
|
|
.env_clear()
|
|
.output()?;
|
|
assert!(native.status.success(), "{word}: {native:?}");
|
|
let tree = crate::bash::try_parse_shell(&script).unwrap();
|
|
let node = tree.root_node().named_child(0).unwrap();
|
|
let mut cursor = node.walk();
|
|
let argument = node
|
|
.children_by_field_name("argument", &mut cursor)
|
|
.last()
|
|
.unwrap();
|
|
let decoded = super::literals::literal_word_bytes(
|
|
argument,
|
|
&script,
|
|
ShellType::Zsh,
|
|
super::literals::Quoting::Posix,
|
|
)
|
|
.unwrap();
|
|
assert_eq!(decoded, native.stdout, "{word}");
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn brokered_snapshots_check_complete_alias_literals() -> Result<()> {
|
|
let real = "token_ab'cdefghijklmnopqrstuvwx";
|
|
let original = HashMap::from([("VENDOR_PASSWORD".to_string(), real.to_string())]);
|
|
let allowed = HashMap::from([(
|
|
"VENDOR_PASSWORD".to_string(),
|
|
"token_dummy_abcdefghijklmnopqr".to_string(),
|
|
)]);
|
|
let brokered_keys = vec!["VENDOR_PASSWORD".to_string()];
|
|
let controls = (1u8..=31)
|
|
.map(char::from)
|
|
.chain(['\u{7f}', '\u{e9}'])
|
|
.collect::<String>();
|
|
for (shell, aliases) in [("/bin/bash", "alias -p"), ("/bin/zsh", "alias -L")] {
|
|
let shell_type = crate::shell_detect::detect_shell_type(shell).unwrap();
|
|
if !std::path::Path::new(shell).exists() {
|
|
continue;
|
|
}
|
|
for (value, accepted) in [
|
|
(format!("printf '%s' \"{real}\""), false),
|
|
(format!("printf '%s' \"{real}\"\n:"), false),
|
|
(
|
|
"printf %s token_ab\\'cdefghijklmnopqrstuvwx\n:".to_string(),
|
|
false,
|
|
),
|
|
(
|
|
"printf %s 'token_ab'\\''cdefghijklmnopqrstuvwx'\n:".to_string(),
|
|
false,
|
|
),
|
|
(
|
|
"printf '%s' \"ordinary'quoted\"\n# tab\tbell\u{7}escape\u{1b}backslash\\\n:"
|
|
.to_string(),
|
|
true,
|
|
),
|
|
(format!("printf '%s' \"{controls}\""), true),
|
|
] {
|
|
let output = Command::new(shell)
|
|
.args(["-c", &format!("alias helper=\"$ALIAS_VALUE\"; {aliases}")])
|
|
.env_clear()
|
|
.env("ALIAS_VALUE", &value)
|
|
.output()?;
|
|
assert!(output.status.success(), "{shell}: {output:?}");
|
|
let mut snapshot = format!(
|
|
"# aliases\n{}\n# exports 0\n",
|
|
String::from_utf8(output.stdout)?
|
|
);
|
|
let before = snapshot.clone();
|
|
let rewritten = rewrite_snapshot_credentials(
|
|
shell_type,
|
|
&mut snapshot,
|
|
SnapshotCredentialEnvironment {
|
|
original: &original,
|
|
restored: &original,
|
|
configured: &HashMap::new(),
|
|
discovered: &allowed,
|
|
allowed: &allowed,
|
|
is_allowed_unset: &|_| false,
|
|
brokered_keys: &brokered_keys,
|
|
brokered_alias_keys: &[],
|
|
allowed_brokered_keys: &brokered_keys,
|
|
},
|
|
|text| {
|
|
*text = text.replace(real, &allowed["VENDOR_PASSWORD"]);
|
|
true
|
|
},
|
|
);
|
|
assert_eq!(rewritten.is_some(), accepted, "{shell}: {before}");
|
|
if accepted {
|
|
assert_eq!(snapshot, before);
|
|
let expected = if shell_type == ShellType::Zsh {
|
|
let replay = Command::new(shell)
|
|
.args(["-fc", &format!("{snapshot}\nprint -rn -- $aliases[helper]")])
|
|
.env_clear()
|
|
.output()?;
|
|
assert!(replay.status.success(), "{replay:?}");
|
|
String::from_utf8(replay.stdout)?
|
|
} else {
|
|
value.clone()
|
|
};
|
|
assert!(
|
|
super::literals::literal_words(&snapshot, shell_type)
|
|
.unwrap()
|
|
.contains(&format!("helper={expected}")),
|
|
"{shell}: {value:?}; {snapshot}"
|
|
);
|
|
}
|
|
}
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn brokered_snapshots_check_prefixed_alias_declarations() -> Result<()> {
|
|
let empty = HashMap::new();
|
|
let real = "token_ab'cd\"efghijklmnopqrstuvwx";
|
|
let body = format!("printf '%s' {}", shlex::try_quote(real)?);
|
|
for (shell, shell_type, setup) in [
|
|
("/bin/bash", ShellType::Bash, "shopt -s expand_aliases"),
|
|
("/bin/zsh", ShellType::Zsh, "setopt posixbuiltins"),
|
|
] {
|
|
if !std::path::Path::new(shell).exists() {
|
|
continue;
|
|
}
|
|
for (prefix, creates_alias, name) in [
|
|
("alias", true),
|
|
("builtin alias", true),
|
|
("builtin builtin alias", true),
|
|
("time builtin alias", true),
|
|
("command alias", true),
|
|
("command -p -- alias", true),
|
|
("command -pp alias", true),
|
|
("command builtin alias", true),
|
|
("builtin command -p alias", true),
|
|
("command -v alias", false),
|
|
("command -pV alias", false),
|
|
]
|
|
.into_iter()
|
|
.chain((shell_type == ShellType::Bash).then_some(("builtin -- alias", true)))
|
|
.chain((shell_type == ShellType::Bash).then_some(("time -p builtin alias", true)))
|
|
.chain(
|
|
(shell_type == ShellType::Zsh)
|
|
.then_some([
|
|
("noglob builtin alias", true),
|
|
("builtin - alias", true),
|
|
("- builtin alias", true),
|
|
])
|
|
.into_iter()
|
|
.flatten(),
|
|
)
|
|
.flat_map(|(prefix, creates_alias)| {
|
|
["captured", "\"$name\""].map(|name| (prefix, creates_alias, name))
|
|
}) {
|
|
let capture = format!(
|
|
"helper() {{ local name=captured; {prefix} {name}={}; }}\ntypeset -f helper",
|
|
shlex::try_quote(&body)?
|
|
);
|
|
let output = Command::new(shell)
|
|
.args(["-fc", &capture])
|
|
.env_clear()
|
|
.output()?;
|
|
assert!(output.status.success(), "{shell}: {output:?}");
|
|
let original = String::from_utf8(output.stdout)?;
|
|
assert!(!original.contains(real), "{shell}: {original}");
|
|
for contains_credential in [false, true] {
|
|
let mut snapshot = original.clone();
|
|
let result = rewrite_snapshot_credentials(
|
|
shell_type,
|
|
&mut snapshot,
|
|
empty_snapshot_credentials(&empty, &|_| false),
|
|
|text| {
|
|
if contains_credential {
|
|
*text = text.replace(real, "dummy");
|
|
}
|
|
true
|
|
},
|
|
);
|
|
assert_eq!(
|
|
result.is_some(),
|
|
!contains_credential || !creates_alias,
|
|
"{shell}, {prefix}: {snapshot}"
|
|
);
|
|
assert_eq!(snapshot, original);
|
|
if !contains_credential && creates_alias {
|
|
let replay = Command::new(shell)
|
|
.args([
|
|
"-fc",
|
|
&format!("{setup}\n{snapshot}\nhelper\neval captured"),
|
|
])
|
|
.env_clear()
|
|
.output()?;
|
|
assert!(replay.status.success(), "{shell}, {prefix}: {replay:?}");
|
|
assert_eq!(String::from_utf8(replay.stdout)?, real);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn brokered_snapshots_check_array_initializers_and_binary_literals() {
|
|
let empty = HashMap::new();
|
|
let real = "password$abcdefghijklmno";
|
|
for (shell_type, original, has_credential) in [
|
|
(
|
|
ShellType::Bash,
|
|
r#"declare -ax API_HEADERS='([0]="Bearer password\$abcdefghijklmno")'"#,
|
|
),
|
|
(
|
|
ShellType::Bash,
|
|
r#"builtin declare -ax API_HEADERS='([0]="Bearer password\$abcdefghijklmno")'"#,
|
|
),
|
|
(
|
|
ShellType::Bash,
|
|
r#"command -p typeset -ax API_HEADERS='([0]="Bearer password\$abcdefghijklmno")'"#,
|
|
),
|
|
(
|
|
ShellType::Bash,
|
|
r#"declare -Ax API_HEADERS=([auth]="Bearer password\$abcdefghijklmno")"#,
|
|
),
|
|
(
|
|
ShellType::Bash,
|
|
r#"helper() { local -a headers; local headers='([0]="Bearer password\$abcdefghijklmno")'; }"#,
|
|
),
|
|
(
|
|
ShellType::Bash,
|
|
r#"declare -a headers; builtin declare headers='([0]="Bearer password\$abcdefghijklmno")'"#,
|
|
),
|
|
(
|
|
ShellType::Bash,
|
|
r#"declare -a headers; command -p typeset headers='([0]="Bearer password\$abcdefghijklmno")'"#,
|
|
),
|
|
(
|
|
ShellType::Bash,
|
|
r#"declare SCALAR_TEMPLATE='([0]="Bearer password\$abcdefghijklmno")'"#,
|
|
),
|
|
(
|
|
ShellType::Bash,
|
|
r#"helper() { local name=headers; local -a headers; local "${name}"='([0]="Bearer password\$abcdefghijklmno")'; }"#,
|
|
),
|
|
(
|
|
ShellType::Bash,
|
|
r#"helper() { local -a headers; local headers='([0]="Bearer password\$abcdefghijklmno" [1]="'"$OTHER"'")'; }"#,
|
|
),
|
|
(
|
|
ShellType::Bash,
|
|
r#"helper() { local -a headers; local headers=$PREFIX'([0]="Bearer password\$abcdefghijklmno")'$SUFFIX; }"#,
|
|
),
|
|
(
|
|
ShellType::Zsh,
|
|
r#"helper() { printf '%s' $'\x89password\x24abcdefghijklmno\xff'; }"#,
|
|
),
|
|
]
|
|
.into_iter()
|
|
.map(|(shell_type, original)| (shell_type, original, true))
|
|
.chain(
|
|
[
|
|
r#"local TEMPLATE="(\$'\\xZZ')""#,
|
|
r#"local TEMPLATE="(\$'\\uD800')""#,
|
|
r#"local TEMPLATE="(\$'\\UFFFFFFFF')""#,
|
|
r#"local TEMPLATE="(\$'\\c')""#,
|
|
r#"local TEMPLATE="(\$'\\')""#,
|
|
"local TEMPLATE=\"(\\$'\\\\c\u{e9}')\"",
|
|
r#"local TEMPLATE="(\$'incomplete)""#,
|
|
r#"local -a headers; local headers='([0]="Bearer '$CREDENTIAL'")'"#,
|
|
]
|
|
.map(|original| (ShellType::Bash, original, false)),
|
|
) {
|
|
for contains_credential in [false, true] {
|
|
let mut snapshot = original.to_string();
|
|
let result = rewrite_snapshot_credentials(
|
|
shell_type,
|
|
&mut snapshot,
|
|
empty_snapshot_credentials(&empty, &|_| true),
|
|
|text| {
|
|
if contains_credential {
|
|
*text = text.replace(real, "dummy");
|
|
}
|
|
true
|
|
},
|
|
);
|
|
assert_eq!(
|
|
result.is_some(),
|
|
!contains_credential || !has_credential,
|
|
"{original}"
|
|
);
|
|
assert_eq!(snapshot, original);
|
|
}
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn brokered_sh_snapshots_inspect_the_captured_shell_dialect() -> Result<()> {
|
|
let empty = HashMap::new();
|
|
let real = "password$abcdefghijklmno";
|
|
let script = snapshot_capture_script(ShellType::Sh, CAPTURE_NON_INTERACTIVE).unwrap();
|
|
for (shell, bash_backed) in [("/bin/bash", true), ("/bin/dash", false)] {
|
|
if !std::path::Path::new(shell).exists() {
|
|
continue;
|
|
}
|
|
for (setup, contains_credential) in [
|
|
(
|
|
r#"helper() { local -a headers; local headers='([0]="Bearer password\$abcdefghijklmno")'; }"#,
|
|
true,
|
|
),
|
|
(
|
|
r#"helper() { time -p builtin alias captured='printf "%s" "password\$abcdefghijklmno"'; }"#,
|
|
true,
|
|
),
|
|
(
|
|
r#"helper() { local name=captured; alias "$name"='printf "%s" "password\$abcdefghijklmno"'; }"#,
|
|
true,
|
|
),
|
|
(
|
|
r#"export TEMPLATE='([0]="Bearer password\$abcdefghijklmno")'"#,
|
|
true,
|
|
),
|
|
(r#"export TEMPLATE="(\$'incomplete)""#, false),
|
|
(
|
|
r#"helper() { local -a headers; local headers='([0]="ordinary\$value")'; }; export TEMPLATE=ordinary"#,
|
|
false,
|
|
),
|
|
] {
|
|
let capture = Command::new(shell)
|
|
.arg0("sh")
|
|
.args(["-c", &format!("{setup}\n{script}")])
|
|
.env_clear()
|
|
.env("PATH", "/usr/bin:/bin")
|
|
.output()?;
|
|
assert!(capture.status.success(), "{shell}: {capture:?}");
|
|
let original = String::from_utf8(capture.stdout)?;
|
|
assert_eq!(
|
|
original.starts_with(super::BASH_SH_SNAPSHOT_HEADER),
|
|
bash_backed
|
|
);
|
|
let mut snapshot = original.clone();
|
|
let result = rewrite_snapshot_credentials(
|
|
ShellType::Sh,
|
|
&mut snapshot,
|
|
empty_snapshot_credentials(&empty, &|_| true),
|
|
|text| {
|
|
*text = text.replace(real, "dummy");
|
|
true
|
|
},
|
|
);
|
|
assert_eq!(
|
|
result.is_some(),
|
|
!bash_backed || !contains_credential,
|
|
"{shell}: {setup}"
|
|
);
|
|
assert_eq!(
|
|
snapshot,
|
|
if result.is_some() {
|
|
captured_script(ShellType::Sh, &original)?
|
|
} else {
|
|
original
|
|
}
|
|
);
|
|
if result.is_some() {
|
|
let replay = Command::new(shell)
|
|
.arg0("sh")
|
|
.args(["-c", &format!("{snapshot}\nprintf '%s' \"${{TEMPLATE-}}\"")])
|
|
.env_clear()
|
|
.output()?;
|
|
let control = Command::new(shell)
|
|
.arg0("sh")
|
|
.args(["-c", &format!("{setup}\nprintf '%s' \"${{TEMPLATE-}}\"")])
|
|
.env_clear()
|
|
.output()?;
|
|
assert!(replay.status.success(), "{shell}: {replay:?}");
|
|
assert!(control.status.success(), "{shell}: {control:?}");
|
|
assert_eq!(replay.stdout, control.stdout);
|
|
}
|
|
}
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn brokered_snapshots_check_native_quoting() -> Result<()> {
|
|
let empty = HashMap::new();
|
|
for (shell, shell_type, aliases) in [
|
|
("/bin/bash", ShellType::Bash, "alias -p"),
|
|
("/bin/zsh", ShellType::Zsh, "alias -L"),
|
|
] {
|
|
if !std::path::Path::new(shell).exists() {
|
|
continue;
|
|
}
|
|
let mut expressions = vec![
|
|
r#""`printf '%s' 'password\$abcdefghijklmno'`""#,
|
|
r#"`printf '%s' 'password\$abcdefghijklmno'`"#,
|
|
r#""`printf '%s' \`printf '%s' 'password\\\$abcdefghijklmno'\``""#,
|
|
r#""${EMPTY-`printf '%s' 'password\"abcdefghijklmno'`}""#,
|
|
r#"$"token_ab'cdefghijklmnopqrstuvwx""#,
|
|
r#"prefix$"token_ab'cdefghijklmnopqrstuvwx""#,
|
|
r#"$"token_ab'cdefghijklmnopqrstuvwx""${EMPTY-}""#,
|
|
r#"$'token_\c\\abcdefghijklmnopqrstuvwx'"#,
|
|
r#""$(printf '%s' $'token_\c\\abcdefghijklmnopqrstuvwx')""#,
|
|
r#"$'token_\C-Aabcdefghijklmnopqrstuvwx'"#,
|
|
r#"$'token_\C-\x41abcdefghijklmnopqrstuvwx'"#,
|
|
r#"$'token_\C-\101abcdefghijklmnopqrstuvwx'"#,
|
|
r#"$'token_\C-\u0041abcdefghijklmnopqrstuvwx'"#,
|
|
r#"$'token_\C\101abcdefghijklmnopqrstuvwx'"#,
|
|
];
|
|
let mut array_expressions = Vec::new();
|
|
if shell_type == ShellType::Bash {
|
|
expressions.extend([
|
|
r#""$(array_value() { local -a headers; local headers='([0]="password\$abcdefghijklmno")'; printf '%s' "${headers[0]}"; }; array_value)""#,
|
|
r#""$(declare -a headers; builtin declare headers='([0]="password\$abcdefghijklmno")'; printf '%s' "${headers[0]}")""#,
|
|
r#""$(declare -a headers; command -p typeset headers='([0]="password\$abcdefghijklmno")'; printf '%s' "${headers[0]}")""#,
|
|
r#""$(array_value() { local name=headers; local -a headers; local "${name}"='([0]="password\$abcdefghijklmno")'; printf '%s' "${headers[0]}"; }; array_value)""#,
|
|
r#""$(array_value() { local -a headers; local headers='([0]="password\$abcdefghijklmno" [1]="'"$OTHER"'")'; printf '%s' "${headers[0]}"; }; array_value)""#,
|
|
r#""$(array_value() { local -a headers; local headers=$PREFIX'([0]="password\$abcdefghijklmno")'$SUFFIX; printf '%s' "${headers[0]}"; }; array_value)""#,
|
|
]);
|
|
for escape in [r"\xZZ", r"\uD800", r"\UFFFFFFFF", r"\c"] {
|
|
let initializer = format!(r#"([0]=$'{escape}' [1]="password\$abcdefghijklmno")"#);
|
|
let initializer = shlex::try_quote(&initializer)?;
|
|
array_expressions.push(format!(
|
|
"\"$(declare -a headers; declare headers={initializer}; printf '%s' \"${{headers[1]}}\")\""
|
|
));
|
|
}
|
|
} else if shell_type == ShellType::Zsh {
|
|
expressions.extend([
|
|
"password_a$'\\xc3'$'\\xa9'bcdefghijklmno\"${EMPTY-}\"",
|
|
"password_a$'\\M-C'$'\\M-)'bcdefghijklmno\"${EMPTY-}\"",
|
|
"password_a$'\\xc3'\\\n$'\\xa9'bcdefghijklmno\"${EMPTY-}\"",
|
|
"password\\\n\\$abcdefghijklmno",
|
|
"pass\\\nword\\\n\\\n\\$abcdefghijklmno",
|
|
"'password'\\\n'$abcdefghijklmno'",
|
|
"\"password\"\\\n'$abcdefghijklmno'",
|
|
"$'pass'\"word\"\\\n'$abcdefghijklmno'",
|
|
]);
|
|
}
|
|
for expression in expressions
|
|
.into_iter()
|
|
.map(str::to_string)
|
|
.chain(array_expressions)
|
|
{
|
|
let body = format!("printf '%s' {expression}");
|
|
let native = Command::new(shell)
|
|
.args(["-fc", &body])
|
|
.env_clear()
|
|
.output()?;
|
|
assert!(native.status.success(), "{shell}, {expression}: {native:?}");
|
|
let real = String::from_utf8(native.stdout)?;
|
|
assert!(real.len() >= 16, "{shell}, {expression}: {real:?}");
|
|
let mut captures = vec![
|
|
format!("helper() {{ {body}; }}\ntypeset -f helper"),
|
|
format!("alias helper=\"$ALIAS_VALUE\"\n{aliases}"),
|
|
];
|
|
if shell_type == ShellType::Zsh {
|
|
captures.push(format!("alias -g helper=\"$ALIAS_VALUE\"\n{aliases}"));
|
|
let script = snapshot_capture_script(shell_type, CAPTURE_NON_INTERACTIVE)
|
|
.expect("zsh supports snapshots");
|
|
captures.push(format!(
|
|
"quoted() {{ cat <<'EOF'\n\" ${{(@f)EMPTY:-password\\$abcdefghijklmno}}\nEOF\n}}\nhelper() {{ {body}; }}\n{script}"
|
|
));
|
|
}
|
|
for capture in captures {
|
|
let output = Command::new(shell)
|
|
.args(["-fc", &capture])
|
|
.env_clear()
|
|
.env("ALIAS_VALUE", &body)
|
|
.output()?;
|
|
assert!(output.status.success(), "{shell}: {output:?}");
|
|
let captured = String::from_utf8(output.stdout)?;
|
|
let original = if captured.contains('\0') {
|
|
let capture = CapturedSnapshot::parse(shell_type, captured.as_bytes()).unwrap();
|
|
format!("{}{}", capture.state, capture.aliases)
|
|
} else {
|
|
captured
|
|
};
|
|
for contains_credential in [false, true] {
|
|
let mut snapshot = original.clone();
|
|
let result = rewrite_snapshot_credentials(
|
|
shell_type,
|
|
&mut snapshot,
|
|
empty_snapshot_credentials(&empty, &|_| false),
|
|
|text| {
|
|
if contains_credential {
|
|
*text = text.replace(&real, "dummy");
|
|
}
|
|
true
|
|
},
|
|
);
|
|
assert_eq!(
|
|
result.is_some(),
|
|
!contains_credential,
|
|
"{shell}, {expression}: {snapshot}"
|
|
);
|
|
assert_eq!(snapshot, original);
|
|
if !contains_credential {
|
|
let setup = if shell_type == ShellType::Bash {
|
|
"shopt -s expand_aliases\n"
|
|
} else {
|
|
""
|
|
};
|
|
let replay = Command::new(shell)
|
|
.args(["-fc", &format!("{setup}{snapshot}\neval helper")])
|
|
.env_clear()
|
|
.output()?;
|
|
assert!(
|
|
replay.status.success(),
|
|
"{shell}, {expression}: {snapshot}\n{replay:?}"
|
|
);
|
|
assert_eq!(String::from_utf8(replay.stdout)?, real);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn zsh_snapshot_checks_functions_before_restoring_quote_options() -> Result<()> {
|
|
if !std::path::Path::new("/bin/zsh").exists() {
|
|
return Ok(());
|
|
}
|
|
let dir = tempdir()?;
|
|
let real = "ghp_abcdefghijklmnopqrstuvwxyz0123456789";
|
|
let original = HashMap::from([("GH_TOKEN".to_string(), real.to_string())]);
|
|
let allowed = HashMap::from([("GH_TOKEN".to_string(), "dummy-github-token".to_string())]);
|
|
let keys = vec!["GH_TOKEN".to_string()];
|
|
let script = snapshot_capture_script(ShellType::Zsh, CAPTURE_NON_INTERACTIVE)
|
|
.expect("zsh supports snapshots");
|
|
for option in ["setopt rcquotes", "unsetopt rcquotes"] {
|
|
for (value, accepted) in [(real, false), ("ordinaryvalue", true)] {
|
|
let (first, second) = value.split_at(value.len() / 2);
|
|
let startup = dir.path().join("startup.sh");
|
|
std::fs::write(
|
|
&startup,
|
|
format!("helper() {{ printf '%s' '{first}''{second}'; }}\n{option}\n"),
|
|
)?;
|
|
let output = Command::new("/bin/zsh")
|
|
.args(["-fc", &format!(". \"$1\"\n{script}"), "snapshot"])
|
|
.arg(startup)
|
|
.env_clear()
|
|
.envs(&original)
|
|
.env("HOME", dir.path())
|
|
.output()?;
|
|
assert!(output.status.success(), "{output:?}");
|
|
let mut snapshot = String::from_utf8(output.stdout)?;
|
|
let rewritten = rewrite_snapshot_credentials(
|
|
ShellType::Zsh,
|
|
&mut snapshot,
|
|
SnapshotCredentialEnvironment {
|
|
original: &original,
|
|
restored: &original,
|
|
configured: &HashMap::new(),
|
|
discovered: &allowed,
|
|
allowed: &allowed,
|
|
is_allowed_unset: &|_| false,
|
|
brokered_keys: &keys,
|
|
brokered_alias_keys: &[],
|
|
allowed_brokered_keys: &keys,
|
|
},
|
|
|text| {
|
|
*text = text.replace(real, &allowed["GH_TOKEN"]);
|
|
true
|
|
},
|
|
);
|
|
assert_eq!(rewritten.is_some(), accepted, "{option}: {snapshot}");
|
|
if accepted {
|
|
let path = dir.path().join("snapshot.sh");
|
|
std::fs::write(&path, &snapshot)?;
|
|
let replay = Command::new("/bin/zsh")
|
|
.args(["-fc", ". \"$1\"; helper", "snapshot"])
|
|
.arg(path)
|
|
.env_clear()
|
|
.envs(&allowed)
|
|
.output()?;
|
|
assert!(replay.status.success(), "{replay:?}");
|
|
assert_eq!(String::from_utf8(replay.stdout)?, value);
|
|
}
|
|
}
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn zsh_snapshot_checks_deferred_quote_modes() -> Result<()> {
|
|
if !std::path::Path::new("/bin/zsh").exists() {
|
|
return Ok(());
|
|
}
|
|
let dir = tempdir()?;
|
|
let script = snapshot_capture_script(ShellType::Zsh, CAPTURE_NON_INTERACTIVE)
|
|
.expect("zsh supports snapshots");
|
|
for (real, startup) in [
|
|
(
|
|
"token_ab'cdefghijklmnopqrstuvwx",
|
|
"helper() { printf '%s' \"$(printf '%s' 'token_ab''cdefghijklmnopqrstuvwx')\"; }\nsetopt rcquotes\n",
|
|
),
|
|
(
|
|
"ghp_abcdefghijklmnopqrstuvwxyz0123456789",
|
|
"alias helper=\"setopt rcquotes; printf '%s' 'ghp_abcdefghijklmno''pqrstuvwxyz0123456789'\"\n",
|
|
),
|
|
(
|
|
"ghp_abcdefghijklmnopqrstuvwxyz0123456789",
|
|
"alias helper=\"printf '%s' 'ghp_abcdefghijkl'\\\\\n'mnopqrstuvwxyz0123456789'\"\nsetopt rcquotes\n",
|
|
),
|
|
] {
|
|
let startup_path = dir.path().join("startup.sh");
|
|
std::fs::write(&startup_path, startup)?;
|
|
let output = Command::new("/bin/zsh")
|
|
.args(["-fc", &format!(". \"$1\"\n{script}"), "snapshot"])
|
|
.arg(startup_path)
|
|
.env_clear()
|
|
.env("HOME", dir.path())
|
|
.output()?;
|
|
assert!(output.status.success(), "{output:?}");
|
|
let snapshot = captured_script(ShellType::Zsh, &String::from_utf8(output.stdout)?)?;
|
|
let path = dir.path().join("snapshot.sh");
|
|
std::fs::write(&path, &snapshot)?;
|
|
let replay = Command::new("/bin/zsh")
|
|
.args(["-fc", ". \"$1\"; eval helper", "snapshot"])
|
|
.arg(path)
|
|
.env_clear()
|
|
.output()?;
|
|
assert!(replay.status.success(), "{replay:?}");
|
|
assert_eq!(String::from_utf8(replay.stdout)?, real);
|
|
assert!(
|
|
super::literals::literal_words(&snapshot, ShellType::Zsh)
|
|
.expect("valid snapshot")
|
|
.contains(&real.to_string()),
|
|
"runtime literal was not checked: {snapshot}"
|
|
);
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn zsh_snapshot_checks_rcquotes_without_changing_alias_behavior() -> Result<()> {
|
|
if !std::path::Path::new("/bin/zsh").exists() {
|
|
return Ok(());
|
|
}
|
|
let dir = tempdir()?;
|
|
let real = "token_ab'cdefghijklmnopqrstuvwx";
|
|
let original = HashMap::from([("VENDOR_PASSWORD".to_string(), real.to_string())]);
|
|
let allowed = HashMap::from([(
|
|
"VENDOR_PASSWORD".to_string(),
|
|
"token_dummy_abcdefghijklmnopqr".to_string(),
|
|
)]);
|
|
let brokered_keys = vec!["VENDOR_PASSWORD".to_string()];
|
|
let script = snapshot_capture_script(ShellType::Zsh, CAPTURE_NON_INTERACTIVE)
|
|
.expect("zsh supports snapshots");
|
|
for (option, option_value) in [("setopt rcquotes", "on"), ("unsetopt rcquotes", "off")] {
|
|
for (value, accepted) in [(real, false), ("ordinary'quoted", true)] {
|
|
for alias in [
|
|
r#"alias helper="printf '%s' \"$ALIAS_VALUE\"""#,
|
|
r#"alias helper="printf '%s' ${(qq)ALIAS_VALUE}""#,
|
|
r#"alias helper="printf '%s' ${(qq)ALIAS_VALUE}\"\${EMPTY-}\"""#,
|
|
] {
|
|
let output = Command::new("/bin/zsh")
|
|
.args([
|
|
"-fc",
|
|
&format!("{option}\n{alias}\nunset ALIAS_VALUE\n{script}"),
|
|
])
|
|
.env_clear()
|
|
.envs(&original)
|
|
.env("HOME", dir.path())
|
|
.env("ALIAS_VALUE", value)
|
|
.output()?;
|
|
assert!(output.status.success(), "{output:?}");
|
|
let mut snapshot = String::from_utf8(output.stdout)?;
|
|
let rewritten = rewrite_snapshot_credentials(
|
|
ShellType::Zsh,
|
|
&mut snapshot,
|
|
SnapshotCredentialEnvironment {
|
|
original: &original,
|
|
restored: &original,
|
|
configured: &HashMap::new(),
|
|
discovered: &allowed,
|
|
allowed: &allowed,
|
|
is_allowed_unset: &|_| false,
|
|
brokered_keys: &brokered_keys,
|
|
brokered_alias_keys: &[],
|
|
allowed_brokered_keys: &brokered_keys,
|
|
},
|
|
|text| {
|
|
*text = text.replace(real, &allowed["VENDOR_PASSWORD"]);
|
|
true
|
|
},
|
|
);
|
|
assert_eq!(
|
|
rewritten.is_some(),
|
|
accepted,
|
|
"{option}, {alias}: {snapshot}"
|
|
);
|
|
if accepted {
|
|
let path = dir.path().join("snapshot.sh");
|
|
std::fs::write(&path, &snapshot)?;
|
|
let replay = Command::new("/bin/zsh")
|
|
.args([
|
|
"-fc",
|
|
". \"$1\"; eval helper; printf '\\n%s\\n' $options[rcquotes]",
|
|
"snapshot",
|
|
])
|
|
.arg(path)
|
|
.env_clear()
|
|
.envs(&allowed)
|
|
.output()?;
|
|
assert!(replay.status.success(), "{replay:?}");
|
|
assert_eq!(
|
|
String::from_utf8(replay.stdout)?,
|
|
format!("{value}\n{option_value}\n")
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn brokered_snapshots_check_static_fragments_next_to_expansions() -> Result<()> {
|
|
let real = "password$abcdefghijklmno";
|
|
let dir = tempdir()?;
|
|
let invocation = dir.path().join("invoke.sh");
|
|
std::fs::write(&invocation, "helper\n")?;
|
|
let inner_invocation = dir.path().join("inner-invoke.sh");
|
|
std::fs::write(&inner_invocation, "inner\n")?;
|
|
for (shell, aliases) in [("/bin/bash", "alias -p"), ("/bin/zsh", "alias -L")] {
|
|
if !std::path::Path::new(shell).exists() {
|
|
continue;
|
|
}
|
|
for (body, accepted) in [
|
|
(r#"printf '%s' "${USER}:password\$abcdefghijklmno""#, false),
|
|
(r#"printf '%s' "${USER}:pass"'word$abcdefghijklmno'"#, false),
|
|
(r#"printf '%s' "password\$abcdefghijklmno:${USER}""#, false),
|
|
(
|
|
r#"printf '%s' "${USER}:"$'password\x24abcdefghijklmno'"#,
|
|
false,
|
|
),
|
|
(r#"printf '%s' "${USER}:$VENDOR_PASSWORD""#, true),
|
|
(r#"printf '%s' "${USER}:ordinary\$value""#, true),
|
|
(
|
|
"cat <<EOF\nAuthorization: password\\$abcdefghijklmno\nEOF\n",
|
|
false,
|
|
),
|
|
(
|
|
"cat <<EOF\nAuthorization: pass\\\nword\\$abcdefghijklmno\nEOF\n",
|
|
false,
|
|
),
|
|
(
|
|
"cat <<EOF\n${USER}:password\\$abcdefghijklmno\nEOF\n",
|
|
false,
|
|
),
|
|
("cat <<-EOF\n\tpassword\\$abcdefghijklmno\n\tEOF\n", false),
|
|
("cat <<'EOF'\npassword\\$abcdefghijklmno\nEOF\n", true),
|
|
("cat <<EOF\n${USER}:$VENDOR_PASSWORD\nEOF\n", true),
|
|
("cat <<EOF\nordinary\\$value\nEOF\n", true),
|
|
]
|
|
.into_iter()
|
|
.chain(
|
|
(shell == "/bin/zsh")
|
|
.then_some([
|
|
(
|
|
"export GH_COPY=password\\\n\\$abcdefghijklmno; printf '%s' \"$GH_COPY\"",
|
|
false,
|
|
),
|
|
(
|
|
"GH_COPY=password\\\n\\$abcdefghijklmno; printf '%s' \"$GH_COPY\"",
|
|
false,
|
|
),
|
|
(
|
|
"password=''\\\n'$abcdefghijklmno'; printf '%s' \"$password\"",
|
|
true,
|
|
),
|
|
(
|
|
"ali\\\nas inner='printf \"%s\" \"password\\$abcdefghijklmno\"'",
|
|
false,
|
|
),
|
|
(
|
|
"builtin ali\\\nas inner='printf \"%s\" \"password\\$abcdefghijklmno\"'",
|
|
false,
|
|
),
|
|
(
|
|
"alias inner='printf \"%s\" \"password'\\\n'\\$abcdefghijklmno\"'",
|
|
false,
|
|
),
|
|
(
|
|
"alias inner='printf \"%s\" \"password'\\\n'\\$abcdefghijklmno\"'\"${EMPTY}\"",
|
|
false,
|
|
),
|
|
(
|
|
"alias inner=\"${EMPTY}\"'printf \"%s\" \"password'\\\n'\\$abcdefghijklmno\"'",
|
|
false,
|
|
),
|
|
(
|
|
"alias inner='printf \"%s\" \"password'\"${EMPTY}\"\\\n'\\$abcdefghijklmno\"'",
|
|
true,
|
|
),
|
|
(
|
|
"alias inner='printf \"%s\" \"ordinary'\\\n'value\"'\"${EMPTY}\"",
|
|
true,
|
|
),
|
|
(
|
|
"printf '%s' '${USER}:pass'\\\n'word$abcdefghijklmno'",
|
|
false,
|
|
),
|
|
(
|
|
"printf '%s' \"${USER}:pass\"\\\n'word$abcdefghijklmno'",
|
|
false,
|
|
),
|
|
(
|
|
"printf '%s' 'password'\\\n\"${USER}\\$abcdefghijklmno\"",
|
|
true,
|
|
),
|
|
("printf '%s' 'password\n$abcdefghijklmno'", true),
|
|
("printf '%s' 'password\\\n$abcdefghijklmno'", true),
|
|
("printf '%s' \"password\n\\$abcdefghijklmno\"", true),
|
|
("printf '%s' password\\\\\\\n\\$abcdefghijklmno", true),
|
|
("printf '%s ' password \\\n\\$abcdefghijklmno", true),
|
|
("printf '%s ' password\\\n \\$abcdefghijklmno", true),
|
|
])
|
|
.into_iter()
|
|
.flatten(),
|
|
) {
|
|
for script in [
|
|
format!("helper() {{\n{body}\n}}; typeset -f helper"),
|
|
format!("alias helper=\"$ALIAS_VALUE\"; {aliases}"),
|
|
] {
|
|
let output = Command::new(shell)
|
|
.args(["-c", &script])
|
|
.env_clear()
|
|
.env("ALIAS_VALUE", body)
|
|
.output()?;
|
|
assert!(output.status.success(), "{shell}: {output:?}");
|
|
let mut snapshot = String::from_utf8(output.stdout)?;
|
|
let original = snapshot.clone();
|
|
let result = rewrite_snapshot_credentials(
|
|
crate::shell_detect::detect_shell_type(shell).unwrap(),
|
|
&mut snapshot,
|
|
empty_snapshot_credentials(&HashMap::new(), &|_| false),
|
|
|text| {
|
|
*text = text.replace(real, "dummy");
|
|
true
|
|
},
|
|
);
|
|
assert_eq!(result.is_some(), accepted, "{shell}: {original}");
|
|
assert_eq!(snapshot, original);
|
|
let invokes_inner = body.contains("inner=");
|
|
if shell == "/bin/zsh" && (accepted || invokes_inner) {
|
|
let path = dir.path().join("snapshot.sh");
|
|
std::fs::write(&path, &snapshot)?;
|
|
// Source each invocation after its alias has been defined, without eval.
|
|
let replay_command = if invokes_inner {
|
|
". \"$1\"; . \"$2\"; . \"$3\""
|
|
} else {
|
|
". \"$1\"; . \"$2\""
|
|
};
|
|
let replay = Command::new(shell)
|
|
.args(["-c", replay_command, "snapshot"])
|
|
.args([&path, &invocation, &inner_invocation])
|
|
.env_clear()
|
|
.output()?;
|
|
let native_command = if invokes_inner {
|
|
format!("{body}\n. \"$1\"")
|
|
} else {
|
|
body.to_string()
|
|
};
|
|
let native = Command::new(shell)
|
|
.args(["-c", &native_command, "native"])
|
|
.arg(&inner_invocation)
|
|
.env_clear()
|
|
.output()?;
|
|
assert!(replay.status.success(), "{shell}: {replay:?}");
|
|
assert!(native.status.success(), "{shell}: {native:?}");
|
|
assert_eq!(replay.stdout, native.stdout, "{shell}: {body}");
|
|
if !accepted && invokes_inner {
|
|
assert_eq!(native.stdout, real.as_bytes(), "{body}");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn brokered_bash_snapshot_does_not_rewrite_function_syntax() -> Result<()> {
|
|
let dir = tempdir()?;
|
|
let startup = dir.path().join("startup.sh");
|
|
let real = "ghp_abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGH";
|
|
let dummy = "ghp_brokered_dummy_abcdefghijklmnopqrstuvwxyz0123";
|
|
let credential_shaped_function = "ghp_0123456789abcdefghijklmnopqrstuvwxyzABCD";
|
|
std::fs::write(
|
|
&startup,
|
|
format!(
|
|
"helper() {{\n cat <<'EOF'\nexport LEGACY_SETTING=production\nAuthorization: {real}\nEOF\n}}\n{credential_shaped_function}() {{ printf UNEXPECTED_EXECUTION; }}\nexport -f helper\nexport GH_TOKEN='{real}'\n"
|
|
),
|
|
)?;
|
|
let output = Command::new("/bin/bash")
|
|
.arg("-c")
|
|
.arg(
|
|
snapshot_capture_script(ShellType::Bash, CAPTURE_ALL).expect("bash supports snapshots"),
|
|
)
|
|
.env_clear()
|
|
.env("HOME", dir.path())
|
|
.env("PATH", "/usr/bin:/bin")
|
|
.env("BASH_ENV", &startup)
|
|
.output()?;
|
|
assert!(output.status.success());
|
|
|
|
let mut snapshot = String::from_utf8(output.stdout)?;
|
|
let original = HashMap::from([("GH_TOKEN".to_string(), real.to_string())]);
|
|
let discovered = HashMap::from([("GH_TOKEN".to_string(), dummy.to_string())]);
|
|
let brokered_keys = vec!["GH_TOKEN".to_string()];
|
|
let snapshot_is_safe = rewrite_snapshot_credentials(
|
|
ShellType::Bash,
|
|
&mut snapshot,
|
|
SnapshotCredentialEnvironment {
|
|
original: &original,
|
|
restored: &original,
|
|
configured: &HashMap::new(),
|
|
discovered: &discovered,
|
|
allowed: &discovered,
|
|
is_allowed_unset: &|_| false,
|
|
brokered_keys: &brokered_keys,
|
|
brokered_alias_keys: &[],
|
|
allowed_brokered_keys: &brokered_keys,
|
|
},
|
|
|text| {
|
|
if text.contains(credential_shaped_function) {
|
|
*text = text.replace(credential_shaped_function, "");
|
|
return false;
|
|
}
|
|
*text = text.replace(real, dummy);
|
|
true
|
|
},
|
|
);
|
|
assert!(snapshot_is_safe.is_none());
|
|
assert!(snapshot.contains(real));
|
|
assert!(snapshot.contains(credential_shaped_function));
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn brokered_zsh_tied_alias_respects_policy_override() -> Result<()> {
|
|
if !std::path::Path::new("/bin/zsh").exists() {
|
|
return Ok(());
|
|
}
|
|
let real = "ghp_abcdefghijklmnopqrstuvwxyz0123456789";
|
|
let dummy = "ghp_dummy_abcdefghijklmnopqrstuvwxyz0123";
|
|
let keys = vec!["GH_TOKEN".to_string()];
|
|
let script = snapshot_capture_script(ShellType::Zsh, CAPTURE_NON_INTERACTIVE).unwrap();
|
|
for (replacement, source_present, source_allowed) in ["", "replacement|plain|replacement"]
|
|
.into_iter()
|
|
.flat_map(|replacement| {
|
|
[
|
|
(replacement, true, true),
|
|
(replacement, true, false),
|
|
(replacement, false, false),
|
|
]
|
|
})
|
|
{
|
|
let unset_source = if source_present { "" } else { "unset GH_TOKEN" };
|
|
let output = Command::new("/bin/zsh")
|
|
.args([
|
|
"-fc",
|
|
&format!(
|
|
"export -UT AUTH_HEADER auth_header=(\"Bearer $GH_TOKEN\" plain) '|'\n{unset_source}\n{script}"
|
|
),
|
|
])
|
|
.env_clear()
|
|
.env("GH_TOKEN", real)
|
|
.output()?;
|
|
assert!(output.status.success(), "{output:?}");
|
|
let mut snapshot = String::from_utf8(output.stdout)?;
|
|
let mut original = HashMap::from([
|
|
("GH_TOKEN".to_string(), real.to_string()),
|
|
("AUTH_HEADER".to_string(), format!("Bearer {real}|plain")),
|
|
]);
|
|
let brokered_keys = if source_present {
|
|
keys.as_slice()
|
|
} else {
|
|
original.remove("GH_TOKEN");
|
|
&[]
|
|
};
|
|
let discovered = original
|
|
.iter()
|
|
.map(|(key, value)| (key.clone(), value.replace(real, dummy)))
|
|
.collect::<HashMap<_, _>>();
|
|
let configured = HashMap::from([("AUTH_HEADER".to_string(), replacement.to_string())]);
|
|
let mut allowed = discovered.clone();
|
|
allowed.extend(configured.clone());
|
|
let allowed_keys = if source_allowed {
|
|
keys.as_slice()
|
|
} else {
|
|
allowed.remove("GH_TOKEN");
|
|
&[]
|
|
};
|
|
let prepared = rewrite_snapshot_credentials(
|
|
ShellType::Zsh,
|
|
&mut snapshot,
|
|
SnapshotCredentialEnvironment {
|
|
original: &original,
|
|
restored: &original,
|
|
configured: &configured,
|
|
discovered: &discovered,
|
|
allowed: &allowed,
|
|
is_allowed_unset: &|_| true,
|
|
brokered_keys,
|
|
brokered_alias_keys: &[],
|
|
allowed_brokered_keys: allowed_keys,
|
|
},
|
|
|value| {
|
|
if !source_allowed && (value.contains(real) || value.contains(dummy)) {
|
|
return false;
|
|
}
|
|
*value = value.replace(real, dummy);
|
|
true
|
|
},
|
|
)
|
|
.expect("policy override keeps the tied alias usable");
|
|
assert_eq!(
|
|
prepared.aliases,
|
|
if source_present {
|
|
configured
|
|
} else {
|
|
HashMap::new()
|
|
}
|
|
);
|
|
assert!(!snapshot.contains(real));
|
|
let inspect = "printf '%s\\0' \"$AUTH_HEADER\" \"${auth_header[@]}\"; AUTH_HEADER='next|next|last'; printf '%s\\0' \"$AUTH_HEADER\" \"${auth_header[@]}\"";
|
|
let mut outputs = Vec::new();
|
|
for setup in [snapshot.as_str(), "export -UT AUTH_HEADER auth_header '|'"] {
|
|
let output = Command::new("/bin/zsh")
|
|
.args(["-fc", &format!("set -e; {setup}\n{inspect}")])
|
|
.env_clear()
|
|
.env("AUTH_HEADER", replacement)
|
|
.output()?;
|
|
assert!(output.status.success(), "{output:?}");
|
|
outputs.push(output.stdout);
|
|
}
|
|
assert_eq!(outputs[0], outputs[1]);
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn brokered_snapshot_alias_values_follow_allowed_credential_overrides() {
|
|
let real = "ghp_abcdefghijklmnopqrstuvwxyz0123456789";
|
|
let discovered_dummy = "ghp_discovered_dummy_abcdefghijklmnopqr";
|
|
let configured_dummy = "ghp_configured_dummy_abcdefghijklmnopqr";
|
|
let original = HashMap::from([
|
|
("GH_TOKEN".to_string(), real.to_string()),
|
|
("AUTH_HEADER".to_string(), format!("Bearer {real}")),
|
|
]);
|
|
let discovered = HashMap::from([("GH_TOKEN".to_string(), discovered_dummy.to_string())]);
|
|
let brokered_keys = vec!["GH_TOKEN".to_string()];
|
|
for (source_allowed, alias, expected) in [
|
|
(
|
|
true,
|
|
format!("Bearer {discovered_dummy}"),
|
|
Some((
|
|
format!("Bearer {configured_dummy}"),
|
|
r#"export AUTH_HEADER='Bearer '"${GH_TOKEN-}""#,
|
|
)),
|
|
),
|
|
(
|
|
true,
|
|
String::new(),
|
|
Some((String::new(), "export AUTH_HEADER=''")),
|
|
),
|
|
(false, format!("Bearer {discovered_dummy}"), None),
|
|
] {
|
|
let mut allowed = HashMap::from([
|
|
("GH_TOKEN".to_string(), configured_dummy.to_string()),
|
|
("AUTH_HEADER".to_string(), alias),
|
|
]);
|
|
let allowed_brokered_keys = if source_allowed {
|
|
brokered_keys.as_slice()
|
|
} else {
|
|
allowed.remove("GH_TOKEN");
|
|
&[]
|
|
};
|
|
let mut snapshot =
|
|
format!("# Snapshot file\n\0\0AUTH_HEADER\0export AUTH_HEADER='Bearer {real}'\n\0\0");
|
|
let prepared = rewrite_snapshot_credentials(
|
|
ShellType::Bash,
|
|
&mut snapshot,
|
|
SnapshotCredentialEnvironment {
|
|
original: &original,
|
|
restored: &original,
|
|
configured: &HashMap::new(),
|
|
discovered: &discovered,
|
|
allowed: &allowed,
|
|
is_allowed_unset: &|_| false,
|
|
brokered_keys: &brokered_keys,
|
|
brokered_alias_keys: &[],
|
|
allowed_brokered_keys,
|
|
},
|
|
|text| {
|
|
*text = text.replace(real, discovered_dummy);
|
|
true
|
|
},
|
|
);
|
|
let expected = match expected {
|
|
Some((value, assignment)) => (
|
|
format!("# Snapshot file\n# exports (native declarations)\n{assignment}\n"),
|
|
HashMap::from([("AUTH_HEADER".to_string(), value)]),
|
|
Vec::new(),
|
|
),
|
|
None => (
|
|
"# Snapshot file\n".to_string(),
|
|
HashMap::new(),
|
|
vec!["AUTH_HEADER".to_string()],
|
|
),
|
|
};
|
|
assert_eq!(
|
|
prepared.map(|rewrite| (rewrite.script, rewrite.aliases, rewrite.rejected_alias_keys)),
|
|
Some(expected),
|
|
);
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn brokered_short_alias_respects_policy_override() -> Result<()> {
|
|
let real = "pin_abcdefgh";
|
|
let dummy = "pin_qrstuvwx";
|
|
let keys = vec!["VENDOR_PASSWORD".to_string()];
|
|
for captured in [real, "pin_ijklmnop"] {
|
|
let original = HashMap::from([
|
|
("VENDOR_PASSWORD".to_string(), captured.to_string()),
|
|
("AUTH_HEADER".to_string(), format!("Bearer {captured}")),
|
|
]);
|
|
let restored = HashMap::from([
|
|
("VENDOR_PASSWORD".to_string(), real.to_string()),
|
|
("AUTH_HEADER".to_string(), format!("Bearer {real}")),
|
|
]);
|
|
let discovered = HashMap::from([
|
|
("VENDOR_PASSWORD".to_string(), dummy.to_string()),
|
|
("AUTH_HEADER".to_string(), format!("Bearer {dummy}")),
|
|
]);
|
|
for replacement in ["", "replacement"] {
|
|
let configured = HashMap::from([("AUTH_HEADER".to_string(), replacement.to_string())]);
|
|
let mut allowed = discovered.clone();
|
|
allowed.extend(configured.clone());
|
|
let mut snapshot = format!(
|
|
"# Snapshot file\n\0\0AUTH_HEADER\0export AUTH_HEADER='Bearer {captured}'\n\0\0"
|
|
);
|
|
let prepared = rewrite_snapshot_credentials(
|
|
ShellType::Bash,
|
|
&mut snapshot,
|
|
SnapshotCredentialEnvironment {
|
|
original: &original,
|
|
restored: &restored,
|
|
configured: &configured,
|
|
discovered: &discovered,
|
|
allowed: &allowed,
|
|
is_allowed_unset: &|_| false,
|
|
brokered_keys: &keys,
|
|
brokered_alias_keys: &[],
|
|
allowed_brokered_keys: &keys,
|
|
},
|
|
|value| {
|
|
*value = value.replace(real, dummy).replace(captured, dummy);
|
|
true
|
|
},
|
|
)
|
|
.expect("policy override keeps short aliases usable");
|
|
assert_eq!(prepared.aliases, configured);
|
|
assert!(!snapshot.contains(real));
|
|
assert!(!snapshot.contains(captured));
|
|
let output = Command::new("/bin/bash")
|
|
.args(["-c", &format!("{snapshot}\nprintf '%s' \"$AUTH_HEADER\"")])
|
|
.env_clear()
|
|
.output()?;
|
|
assert!(output.status.success(), "{output:?}");
|
|
assert_eq!(output.stdout, replacement.as_bytes());
|
|
}
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn brokered_snapshot_aliases_follow_captured_dummies() -> Result<()> {
|
|
for (real, captured, dummy) in [
|
|
(
|
|
"ghp_real_abcdefghijklmnopqrstuvwxyz012345",
|
|
"ghp_old_abcdefghijklmnopqrstuvwxyz0123456",
|
|
"ghp_new_abcdefghijklmnopqrstuvwxyz0123456",
|
|
),
|
|
("pin_abcdefgh", "pin_ijklmnop", "pin_ijklmnop"),
|
|
("pin_abcdefgh", "pin_ijklmnop", "pin_qrstuvwx"),
|
|
] {
|
|
let original = HashMap::from([
|
|
("VENDOR_PASSWORD".to_string(), captured.to_string()),
|
|
("AUTH_HEADER".to_string(), format!("Bearer {captured}")),
|
|
("READONLY_HEADER".to_string(), format!("Bearer {captured}")),
|
|
]);
|
|
let mut restored = original.clone();
|
|
restored.insert("VENDOR_PASSWORD".to_string(), real.to_string());
|
|
let allowed = HashMap::from([
|
|
("VENDOR_PASSWORD".to_string(), dummy.to_string()),
|
|
("AUTH_HEADER".to_string(), format!("Bearer {dummy}")),
|
|
("READONLY_HEADER".to_string(), format!("Bearer {dummy}")),
|
|
]);
|
|
let keys = vec!["VENDOR_PASSWORD".to_string()];
|
|
let mut snapshot = format!(
|
|
"# Snapshot file\n\0\0AUTH_HEADER\0export AUTH_HEADER='Bearer {captured}'\n\0READONLY_HEADER\0declare -rx READONLY_HEADER='Bearer {captured}'\n\0\0"
|
|
);
|
|
let rewrite = rewrite_snapshot_credentials(
|
|
ShellType::Bash,
|
|
&mut snapshot,
|
|
SnapshotCredentialEnvironment {
|
|
original: &original,
|
|
restored: &restored,
|
|
configured: &HashMap::new(),
|
|
discovered: &allowed,
|
|
allowed: &allowed,
|
|
is_allowed_unset: &|_| false,
|
|
brokered_keys: &keys,
|
|
brokered_alias_keys: &[],
|
|
allowed_brokered_keys: &keys,
|
|
},
|
|
|text| {
|
|
*text = text
|
|
.replace(&format!("Bearer {real}"), &format!("Bearer {dummy}"))
|
|
.replace(&format!("Bearer {captured}"), &format!("Bearer {dummy}"));
|
|
true
|
|
},
|
|
)
|
|
.expect("captured dummy aliases should be rewritten");
|
|
assert_eq!(
|
|
rewrite.aliases,
|
|
HashMap::from([
|
|
("AUTH_HEADER".to_string(), format!("Bearer {dummy}")),
|
|
("READONLY_HEADER".to_string(), format!("Bearer {dummy}")),
|
|
])
|
|
);
|
|
let replay = Command::new("/bin/bash")
|
|
.args([
|
|
"-c",
|
|
&format!("{snapshot}\nprintf '%s\\n%s' \"$AUTH_HEADER\" \"$READONLY_HEADER\""),
|
|
])
|
|
.env_clear()
|
|
.env("VENDOR_PASSWORD", real)
|
|
.output()?;
|
|
assert!(replay.status.success(), "{replay:?}");
|
|
assert_eq!(
|
|
replay.stdout,
|
|
format!("Bearer {real}\nBearer {real}").as_bytes()
|
|
);
|
|
if std::path::Path::new("/bin/zsh").exists() {
|
|
let script = snapshot_capture_script(ShellType::Zsh, CAPTURE_NON_INTERACTIVE).unwrap();
|
|
let capture_output = Command::new("/bin/zsh")
|
|
.args(["-fc", &format!("readonly READONLY_HEADER\n{script}")])
|
|
.env_clear()
|
|
.envs(&original)
|
|
.env("PATH", "/usr/bin:/bin")
|
|
.output()?;
|
|
assert!(capture_output.status.success(), "{capture_output:?}");
|
|
let mut snapshot = String::from_utf8(capture_output.stdout)?;
|
|
let rewritten = rewrite_snapshot_credentials(
|
|
ShellType::Zsh,
|
|
&mut snapshot,
|
|
SnapshotCredentialEnvironment {
|
|
original: &original,
|
|
restored: &restored,
|
|
configured: &HashMap::new(),
|
|
discovered: &allowed,
|
|
allowed: &allowed,
|
|
is_allowed_unset: &|_| false,
|
|
brokered_keys: &keys,
|
|
brokered_alias_keys: &[],
|
|
allowed_brokered_keys: &keys,
|
|
},
|
|
|text| {
|
|
*text = text.replace(real, dummy).replace(captured, dummy);
|
|
true
|
|
},
|
|
)
|
|
.expect("omitted readonly exports retain their alias metadata");
|
|
assert_eq!(rewritten.aliases, rewrite.aliases);
|
|
let replay = Command::new("/bin/zsh")
|
|
.args(["-fc", &format!("readonly READONLY_HEADER\n{snapshot}\n[[ $parameters[READONLY_HEADER] == *readonly* ]] || exit 1\nprintf '%s' \"$READONLY_HEADER\"")])
|
|
.env_clear()
|
|
.env("VENDOR_PASSWORD", real)
|
|
.env("READONLY_HEADER", format!("Bearer {real}"))
|
|
.output()?;
|
|
assert!(replay.status.success(), "{replay:?}");
|
|
assert_eq!(replay.stdout, format!("Bearer {real}").as_bytes());
|
|
}
|
|
}
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn brokered_snapshot_rejects_shell_escaped_credentials() {
|
|
let real = "token_ab'cdefgh";
|
|
let dummy = "token_xy'zabcde";
|
|
let mut snapshot = format!(
|
|
"# Snapshot file\n# aliases 1\nalias helper='tool {escaped}'\n# exports 0\n",
|
|
escaped = real.replace('\'', r#"'\''"#),
|
|
);
|
|
let original = snapshot.clone();
|
|
|
|
let snapshot_is_safe = rewrite_snapshot_credentials(
|
|
ShellType::Bash,
|
|
&mut snapshot,
|
|
empty_snapshot_credentials(&HashMap::new(), &|_| false),
|
|
|text| {
|
|
*text = text.replace(real, dummy);
|
|
true
|
|
},
|
|
);
|
|
|
|
assert!(snapshot_is_safe.is_none());
|
|
assert_eq!(snapshot, original);
|
|
}
|
|
|
|
#[cfg(target_os = "macos")]
|
|
#[test]
|
|
fn zsh_snapshot_restores_tied_path() -> Result<()> {
|
|
let dir = tempdir()?;
|
|
let path_with_spaces = dir.path().join("path with spaces").join("bin");
|
|
let plain_path = dir.path().join("plain-path").join("bin");
|
|
let expected_path = format!(
|
|
"{}:{}:/usr/bin:/bin",
|
|
path_with_spaces.display(),
|
|
plain_path.display()
|
|
);
|
|
let zshrc = format!(
|
|
"export -UT PATH path=('{}' '{}' '{}' /usr/bin /bin)\n",
|
|
path_with_spaces.display(),
|
|
plain_path.display(),
|
|
plain_path.display()
|
|
);
|
|
std::fs::write(dir.path().join(".zshrc"), zshrc)?;
|
|
|
|
let snapshot = Command::new("/bin/zsh")
|
|
.arg("-f")
|
|
.arg("-c")
|
|
.arg(snapshot_script(ShellType::Zsh).expect("zsh supports snapshots"))
|
|
.env_clear()
|
|
.env("PATH", "/usr/bin:/bin")
|
|
.env("ZDOTDIR", dir.path())
|
|
.output()?;
|
|
assert!(snapshot.status.success());
|
|
|
|
let snapshot_path = dir.path().join("snapshot.sh");
|
|
let snapshot = captured_script(ShellType::Zsh, &String::from_utf8(snapshot.stdout)?)?;
|
|
std::fs::write(&snapshot_path, &snapshot)?;
|
|
|
|
let restored = Command::new("/bin/zsh")
|
|
.arg("-f")
|
|
.arg("-c")
|
|
.arg("set -e; . \"$1\"; print -r -- \"$PATH\"")
|
|
.arg("zsh")
|
|
.arg(&snapshot_path)
|
|
.env_clear()
|
|
.env("PATH", "/usr/bin:/bin")
|
|
.output()?;
|
|
assert!(restored.status.success());
|
|
assert_eq!(
|
|
String::from_utf8(restored.stdout)?.trim_end(),
|
|
expected_path
|
|
);
|
|
|
|
assert!(
|
|
snapshot
|
|
.lines()
|
|
.any(|line| line.starts_with("export -UT PATH path=")),
|
|
"snapshot should capture the tied PATH export"
|
|
);
|
|
|
|
std::fs::write(dir.path().join(".zshrc"), "readonly PATH\n")?;
|
|
let readonly_snapshot = Command::new("/bin/zsh")
|
|
.arg("-f")
|
|
.arg("-c")
|
|
.arg(snapshot_script(ShellType::Zsh).expect("zsh supports snapshots"))
|
|
.env_clear()
|
|
.env("PATH", "/usr/bin:/bin")
|
|
.env("ZDOTDIR", dir.path())
|
|
.output()?;
|
|
assert!(readonly_snapshot.status.success());
|
|
let readonly_snapshot = captured_script(
|
|
ShellType::Zsh,
|
|
&String::from_utf8(readonly_snapshot.stdout)?,
|
|
)?;
|
|
std::fs::write(&snapshot_path, &readonly_snapshot)?;
|
|
|
|
let readonly_restored = Command::new("/bin/zsh")
|
|
.arg("-f")
|
|
.arg("-c")
|
|
.arg("set -e; . \"$1\"; export PATH='/codex-path':\"$PATH\"; print -r -- \"$PATH\"")
|
|
.arg("zsh")
|
|
.arg(&snapshot_path)
|
|
.env_clear()
|
|
.env("PATH", "/usr/bin:/bin")
|
|
.output()?;
|
|
assert!(readonly_restored.status.success());
|
|
assert_eq!(
|
|
String::from_utf8(readonly_restored.stdout)?.trim_end(),
|
|
"/codex-path:/usr/bin:/bin"
|
|
);
|
|
|
|
assert!(
|
|
!readonly_snapshot
|
|
.lines()
|
|
.any(|line| line.starts_with("export -rT PATH path=")),
|
|
"snapshot should not capture the readonly tied PATH export"
|
|
);
|
|
|
|
Ok(())
|
|
}
|
|
|
|
// Literal-only fixtures are shell source rather than capture output. Give those fixtures
|
|
// empty alias/export sections; real shell fixtures exercise the full framed capture.
|
|
fn rewrite_snapshot_credentials(
|
|
shell_type: ShellType,
|
|
snapshot: &mut String,
|
|
environment: SnapshotCredentialEnvironment<'_>,
|
|
virtualize_text: impl FnMut(&mut String) -> bool,
|
|
) -> Option<PreparedSnapshot> {
|
|
let source_only = !snapshot.contains('\0');
|
|
let framed = if source_only {
|
|
format!("# Snapshot file\n{snapshot}\0\0\0")
|
|
} else {
|
|
snapshot.clone()
|
|
};
|
|
let capture = CapturedSnapshot::parse(shell_type, framed.as_bytes())?;
|
|
let prepared = prepare_snapshot_credentials(&capture, environment, virtualize_text)?;
|
|
*snapshot = if source_only {
|
|
prepared
|
|
.script
|
|
.strip_prefix("# Snapshot file\n")?
|
|
.to_string()
|
|
} else {
|
|
prepared.script.clone()
|
|
};
|
|
Some(prepared)
|
|
}
|
|
|
|
fn captured_script(shell_type: ShellType, source: &str) -> Result<String> {
|
|
let captured =
|
|
CapturedSnapshot::parse(shell_type, source.as_bytes()).context("invalid native capture")?;
|
|
Ok(captured.render_script())
|
|
}
|