Files
EJClaw/runners/agent-runner/src/reviewer-runtime.ts

161 lines
3.7 KiB
TypeScript

import { execFileSync } from 'child_process';
import fs from 'fs';
import os from 'os';
import path from 'path';
import type { RoomRoleContext } from './room-role-context.js';
const BLOCKED_GIT_SUBCOMMANDS = new Set([
'add',
'am',
'apply',
'branch',
'checkout',
'cherry-pick',
'clean',
'commit',
'merge',
'push',
'rebase',
'reset',
'restore',
'stash',
'switch',
'tag',
'worktree',
]);
const MUTATING_SHELL_PATTERNS = [
/\bsed\s+-i\b/i,
/\bperl\s+-i\b/i,
/(^|[;&|])\s*(cat|echo|printf)\b[^#\n]*>>?/i,
];
export function isReviewerRuntime(
roomRoleContext?: RoomRoleContext,
): boolean {
return roomRoleContext?.role === 'reviewer';
}
function resolveGitBinary(baseEnv: NodeJS.ProcessEnv): string {
return execFileSync('bash', ['-lc', 'command -v git'], {
encoding: 'utf-8',
env: baseEnv,
stdio: ['ignore', 'pipe', 'pipe'],
}).trim();
}
export function buildReviewerGitGuardEnv(
baseEnv: NodeJS.ProcessEnv,
reviewerRuntime: boolean,
): NodeJS.ProcessEnv {
if (!reviewerRuntime) {
return baseEnv;
}
const realGitPath = resolveGitBinary(baseEnv);
const protectedWorkDir = baseEnv.EJCLAW_WORK_DIR || '';
const wrapperDir = fs.mkdtempSync(
path.join(os.tmpdir(), 'ejclaw-reviewer-git-'),
);
const wrapperPath = path.join(wrapperDir, 'git');
const blocked = [...BLOCKED_GIT_SUBCOMMANDS]
.map((value) => `'${value}'`)
.join(' ');
const script = `#!/usr/bin/env bash
set -euo pipefail
real_git=${JSON.stringify(realGitPath)}
protected_work_dir=${JSON.stringify(protectedWorkDir)}
blocked_subcommands=(${blocked})
subcmd=""
skip_next=0
target_dir="$(pwd -P)"
capture_next_dir=0
for arg in "$@"; do
if [[ "$capture_next_dir" == "1" ]]; then
if [[ "$arg" == /* ]]; then
target_dir="$arg"
else
target_dir="$target_dir/$arg"
fi
target_dir="$(cd "$target_dir" 2>/dev/null && pwd -P || printf '%s' "$target_dir")"
capture_next_dir=0
continue
fi
if [[ "$skip_next" == "1" ]]; then
skip_next=0
continue
fi
case "$arg" in
-C)
capture_next_dir=1
continue
;;
-C*)
target_dir="\${arg#-C}"
target_dir="$(cd "$target_dir" 2>/dev/null && pwd -P || printf '%s' "$target_dir")"
continue
;;
--work-tree)
capture_next_dir=1
continue
;;
--work-tree=*)
target_dir="\${arg#--work-tree=}"
target_dir="$(cd "$target_dir" 2>/dev/null && pwd -P || printf '%s' "$target_dir")"
continue
;;
-c|-C|--git-dir|--work-tree|--namespace|--exec-path|--config-env)
skip_next=1
continue
;;
-c*|-C*|--git-dir=*|--work-tree=*|--namespace=*|--exec-path=*|--config-env=*)
continue
;;
--*)
continue
;;
-*)
continue
;;
*)
subcmd="$arg"
break
;;
esac
done
is_protected_target=0
if [[ -n "$protected_work_dir" ]]; then
protected_real="$(cd "$protected_work_dir" 2>/dev/null && pwd -P || printf '%s' "$protected_work_dir")"
case "$target_dir" in
"$protected_real"|"$protected_real"/*)
is_protected_target=1
;;
esac
fi
for blocked in "\${blocked_subcommands[@]}"; do
if [[ "$is_protected_target" == "1" && "$subcmd" == "$blocked" ]]; then
echo "EJClaw reviewer runtime blocks mutating git subcommands: $subcmd" >&2
exit 1
fi
done
exec "$real_git" "$@"
`;
fs.writeFileSync(wrapperPath, script, { mode: 0o755 });
return {
...baseEnv,
EJCLAW_REAL_GIT: realGitPath,
EJCLAW_PROTECTED_WORK_DIR: protectedWorkDir,
PATH: `${wrapperDir}:${baseEnv.PATH || ''}`,
};
}
export function isReviewerMutatingShellCommand(command: string): boolean {
const normalized = command.trim();
return (
MUTATING_SHELL_PATTERNS.some((pattern) => pattern.test(normalized))
);
}