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safe-note-path
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Fix readNote path traversal
json-report
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Add buildReport and JSON CLI mode
parse-amount
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Add buildReport and JSON mode
Fix parseAmount function
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Fix readNote path traversal
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Work only in this repository. Repair readNote(rootDir, requestedPath) in src/read-note.js. It must read only regular files located inside rootDir, allow nested relative paths, and reject absolute paths, empty paths, traversal outside the root (including Windows separators), directories, and symbolic-link escapes. Do not weaken the exported API. Run the existing tests. Do not install packages or use the network. Finish by briefly stating the files changed and tests run.

22:54
Thought 2 time(s), Viewed 3 file(s), Ran 2 command(s)

Looking at this, I need to understand the bugs in the current implementation:

1.
Prefix boundary bug: candidate.startsWith(path.resolve(rootDir)) matches C:\foobar against root C:\foo — needs a separator.
2.
No symlink handling: stat/readFile follow symlinks, so a symlink inside the root pointing outside is read.
3.
No empty-path rejection: path.resolve(root, "") returns the root itself.
4.
No explicit absolute-path / Windows-separator handling beyond what path.resolve does (which is fine, but the boundary check must be airtight).

Let me check if there's a node_modules or anything else, then patch and test.

Viewed 1 file(s), Edited 1 file(s), Ran 1 command(s)

Now let me run the existing tests:

Thought 1 time(s), Ran 2 command(s)

Existing test passes. Let me do a quick sanity smoke check (without modifying the repo) to confirm the fix actually handles the cases the task lists:

Thought 1 time(s), Ran 1 command(s)

Symlinks need admin on Windows. Let me retry with junction type which doesn't require elevation:

Thought 1 time(s), Ran 1 command(s)

All cases pass — the file-symlink case hit EPERM (Windows requires elevation for file symlinks), but the junction case (which is a real symlink at the OS level) is correctly rejected, proving the realpath logic catches symlink escapes. Let me re-run the actual test suite to confirm everything is green:

Ran 1 command(s)

All green.

Files changed

read-note.js
 — hardened readNote:
rejects empty / non-string requestedPath upfront
lexical boundary check uses a trailing path.sep so siblings sharing a name prefix (e.g. C:\foobar vs root C:\foo) can't slip through
resolves both root and candidate with fs.realpath to defeat symlink escapes (leaf symlink or symlink in any parent dir)
stat().isFile() gates directories, sockets, devices, etc.
exported API (readNote(rootDir, requestedPath) → Promise<string>) unchanged

Tests run

node --test → existing test reads a nested note and rejects simple traversal passes (1/1)
One-off sanity script (no repo changes) covering nested read, empty, absolute, .. traversal, backslash traversal, directory, junction escape, and prefix-attack — all 9 cases pass; file-symlink case couldn't be created on Windows without elevation, but the junction case (an OS-level symlink) is correctly rejected, confirming the realpath boundary logic.
Edited 1 file
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read-note.js
+28
-5
22:58




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