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fix(security): resolve 6 final CodeQL alerts - #654

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POWERFULMOVES merged 8 commits into
PMOVES.AI-Edition-Hardenedfrom
fix/codeql-final
Feb 18, 2026
Merged

POWERFULMOVES merged 8 commits into
PMOVES.AI-Edition-Hardenedfrom
fix/codeql-final

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@POWERFULMOVES POWERFULMOVES commented Feb 18, 2026

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Summary

Resolves the final 6 CodeQL security alerts on the base branch that were not addressed by PRs #651 or #653.

Alert Mapping

Alert # File Vulnerability Fix
#34, #35, #36 gateway/api/chit.py Arbitrary file read via codebook_path Remove param from API
#6 gateway/web/client.html DOM XSS via innerHTML Use DOM API
#23 mcp_youtube_adapter.py URL substring bypass Exact hostname match
#24 pmoves-yt/yt.py URL substring bypass Parse + netloc match

Expected Final State

After this PR + PRs #651 and #653 are merged:

Documentation Deliverables

This PR also includes comprehensive CHIT Gateway documentation:

  • NEW pmoves/docs/PMOVESCHIT/CHIT_GATEWAY_API.md — Full API reference for all CHIT Gateway endpoints (encode/decode, geometry calibration, HMAC signatures, error codes)
  • UPDATED pmoves/docs/PMOVESCHIT/IMPLEMENTATION_STATUS.md — Reflects post-CodeQL security hardening status and current endpoint inventory
  • UPDATED pmoves/services/gateway/README.md — Expanded Gateway README with architecture overview, endpoint catalog, security model, and deployment guide

Test Plan

  • CodeQL analysis passes with 0 new alerts introduced
  • POST /geometry/decode/text still works without codebook_path in request body
  • POST /geometry/calibration/report still works without codebook_path query param
  • CHIT web client links render correctly (no XSS, proper anchor elements)
  • YouTube URL parsing still extracts video IDs correctly
  • SoundCloud URL detection works with exact domain matching

🤖 Generated with Claude Code

Summary by CodeRabbit

  • New Features

    • Optional codebook path and signatures supported for geometry calibration and decode; new grouped calibration request body.
  • Bug Fixes

    • Verification blocks unsigned requests when a codebook is provided.
    • More resilient codebook parsing and error handling.
  • Improvements

    • Safer base URL handling and more robust link rendering in the web UI.
    • Stricter YouTube and SoundCloud URL detection.
  • Documentation

    • Added comprehensive gateway API docs and expanded gateway README and implementation status.

POWERFULMOVES and others added 4 commits February 15, 2026 19:41
feat(cipher): Cipher Memory MCP bridge + Claude config unification
….0 (#632)

Bumps [aquasecurity/trivy-action](https://github.com/aquasecurity/trivy-action) from 0.33.1 to 0.34.0.
- [Release notes](https://github.com/aquasecurity/trivy-action/releases)
- [Commits](aquasecurity/trivy-action@0.33.1...0.34.0)

---
updated-dependencies:
- dependency-name: aquasecurity/trivy-action
  dependency-version: 0.34.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Bumps [anchore/sbom-action](https://github.com/anchore/sbom-action) from 0.21.0 to 0.22.2.
- [Release notes](https://github.com/anchore/sbom-action/releases)
- [Changelog](https://github.com/anchore/sbom-action/blob/main/RELEASE.md)
- [Commits](anchore/sbom-action@v0.21.0...v0.22.2)

---
updated-dependencies:
- dependency-name: anchore/sbom-action
  dependency-version: 0.22.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
fix(audit): resolve production blockers B3/B4/B5
el.appendChild(document.createTextNode("View: "));
pairs.forEach(([href, label], i) => {
const a = document.createElement("a");
a.href = href;

Check failure

Code scanning / CodeQL

DOM text reinterpreted as HTML High

DOM text
is reinterpreted as HTML without escaping meta-characters.

Copilot Autofix

AI 7 months ago

In general, to fix “DOM text reinterpreted as HTML” findings, ensure that any data that originated as DOM text or user input is either: (a) encoded/escaped appropriately before being placed into HTML/URLs, or (b) strictly validated and normalized so only safe, expected forms are allowed. Avoid passing arbitrary untrusted strings directly into sensitive properties like href without such validation.

For this specific case, the best fix with minimal functional change is to tighten safeBase so that it never returns untrusted text verbatim. Instead, parse the input with URL, verify the protocol is http: or https:, and then reconstruct and return a canonical base URL string built from the parsed object (origin plus optional pathname), excluding any unexpected characters. For the “starts with /” case, interpret the value as a path on the current origin (or default localhost origin) and return a safe, normalized URL. This way, even if the user types something malicious into #base, the value that flows into href is constrained to a well-formed HTTP(S) URL under an expected origin, eliminating the taint and satisfying CodeQL.

Concretely: in pmoves/services/gateway/web/client.html, update the safeBase function (lines 38–46). Replace the current logic that returns the raw input with one that (1) attempts to parse raw as a URL, (2) if valid and http(s), returns u.origin + u.pathname.replace(/[^-A-Za-z0-9._~\/]/g, "") (or similar conservative filter), (3) if parsing fails but raw starts with /, builds a URL such as new URL(raw, "http://localhost:8000").toString(), and (4) otherwise falls back to "http://localhost:8000". This keeps the same conceptual behavior (“base URL for the server”) while ensuring only normalized, limited-character URLs are ever used as href. No new imports or external dependencies are required.

Suggested changeset 1
pmoves/services/gateway/web/client.html

Autofix patch

Autofix patch
Run the following command in your local git repository to apply this patch
cat << 'EOF' | git apply
diff --git a/pmoves/services/gateway/web/client.html b/pmoves/services/gateway/web/client.html
--- a/pmoves/services/gateway/web/client.html
+++ b/pmoves/services/gateway/web/client.html
@@ -38,9 +38,16 @@
 const safeBase = (raw) => {
   try {
     const u = new URL(raw);
-    if (u.protocol === "http:" || u.protocol === "https:") return raw;
+    if (u.protocol === "http:" || u.protocol === "https:") {
+      const safePath = u.pathname.replace(/[^-A-Za-z0-9._~\/]/g, "");
+      return u.origin + safePath;
+    }
   } catch (_) {
-    if (raw.startsWith("/")) return raw;
+    if (raw.startsWith("/")) {
+      const base = new URL("http://localhost:8000");
+      const safePath = raw.replace(/[^-A-Za-z0-9._~\/]/g, "");
+      return base.origin + safePath;
+    }
   }
   return "http://localhost:8000";
 };
EOF
@@ -38,9 +38,16 @@
const safeBase = (raw) => {
try {
const u = new URL(raw);
if (u.protocol === "http:" || u.protocol === "https:") return raw;
if (u.protocol === "http:" || u.protocol === "https:") {
const safePath = u.pathname.replace(/[^-A-Za-z0-9._~\/]/g, "");
return u.origin + safePath;
}
} catch (_) {
if (raw.startsWith("/")) return raw;
if (raw.startsWith("/")) {
const base = new URL("http://localhost:8000");
const safePath = raw.replace(/[^-A-Za-z0-9._~\/]/g, "");
return base.origin + safePath;
}
}
return "http://localhost:8000";
};
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💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 3da5ddb333

ℹ️ About Codex in GitHub

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  • Mark a draft as ready
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Comment on lines 219 to 222
def decode_constellations(
constellations: Sequence[Constellation],
per_constellation: int = 10,
codebook_path: Optional[str] = None,
) -> Dict[str, Any]:

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P1 Badge Restore decode_constellations call compatibility

Removing the codebook_path parameter from decode_constellations breaks existing callers that still pass that keyword (pmoves/services/gateway/gateway/api/viz.py:144 and :175). In practice, hitting /preview/decode or /mix/decode now raises TypeError: decode_constellations() got an unexpected keyword argument 'codebook_path', so these routes return 500 instead of a decode payload.

Useful? React with 👍 / 👎.

@router.post("/geometry/calibration/report")
def geometry_calibration_report(cgp: CGP, codebook_path: Optional[str] = None):
items = _load_codebook(codebook_path or CHIT_CODEBOOK_PATH)
def geometry_calibration_report(cgp: CGP):

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P1 Badge Restore geometry_calibration_report call compatibility

Dropping codebook_path from geometry_calibration_report without updating all call sites introduces runtime failures where that keyword is still passed (pmoves/services/gateway/gateway/api/viz.py:210,238 and pmoves/services/gateway/gateway/api/workflow.py:147,213). Requests through calibration preview/mix and workflow demo paths now fail with TypeError instead of returning calibration metrics.

Useful? React with 👍 / 👎.

…rvices

- chit.py: remove codebook_path from public API to prevent arbitrary file
  read via HTTP body (alerts #34, #35, #36). Server now always uses
  CHIT_CODEBOOK_PATH env var.
- client.html: replace innerHTML with DOM API (createElement/textContent)
  to prevent XSS through user-controlled base URL input (alert #6).
- mcp_youtube_adapter.py: replace substring 'in netloc' with exact hostname
  match to prevent URL spoofing via youtube.com.evil.com (alert #23).
- yt.py _infer_platform: parse URL and check netloc for soundcloud.com
  instead of substring match on full URL to prevent credential leakage
  to attacker-controlled hosts (alert #24).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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📝 Walkthrough

Walkthrough

Adds CHIT signature and codebook_path support to geometry endpoints, implements codebook loading/parsing robustness, enforces signature verification when required, refactors web client base/link handling, and tightens YouTube/SoundCloud host detection logic.

Changes

Cohort / File(s) Summary
CHIT API (geometry & codebook)
pmoves/services/gateway/gateway/api/chit.py
Added GeometryCalibrationRequest(cgp, codebook_path?, sig?); added sig to GeometryDecodeTextRequest; _load_codebook(codebook_path?) now resolves a safe path and robustly parses JSON-lines; decode/calibration endpoints verify CHIT signatures when a codebook_path is present and CHIT requires signatures (403 on failure); calibration reads first constellation from body.cgp; anchor decryption logic unchanged besides input shape.
Web client (base URL & links)
pmoves/services/gateway/web/client.html
Added safeBase to sanitize/normalize base URL; refactored link rendering to create anchor elements with target="_blank" and rel="noopener noreferrer"; updated handlers (publish, decode, calib) to use safeBase and send { cgp: cgp } for calibration POSTs.
YouTube URL parsing
pmoves/services/mcp_youtube_adapter.py
Tightened host detection by normalizing netloc and matching exact domain/subdomain patterns (e.g., .youtube.com, .youtu.be) for reliable video_id extraction.
Platform inference (SoundCloud)
pmoves/services/pmoves-yt/yt.py
Refined _infer_platform to detect SoundCloud via explicit soundcloud: prefix or parsed domain checks (soundcloud.com and subdomains), with urlparse error handling and fallback to youtube.
Docs & Guides
pmoves/docs/PMOVESCHIT/CHIT_GATEWAY_API.md, pmoves/docs/PMOVESCHIT/IMPLEMENTATION_STATUS.md, pmoves/services/gateway/README.md
Added comprehensive CHIT Gateway API reference and updated implementation/status docs and gateway README to reflect new endpoints, models, security notes, and architecture. Extensive documentation additions only.

Sequence Diagram

sequenceDiagram
    participant Client
    participant API as Geometry Endpoint
    participant Verifier as CHIT Verifier
    participant Loader as _load_codebook()
    participant Decoder as decode_constellations()

    Client->>API: POST GeometryDecodeTextRequest(sig?, codebook_path?)
    API->>API: Determine if codebook_path provided & CHIT requires sigs
    alt Signature required
        API->>Verifier: Verify request signature
        alt Verification fails
            Verifier-->>API: invalid
            API-->>Client: 403 Forbidden
        else Verification succeeds
            Verifier-->>API: valid
            API->>Loader: load codebook(codebook_path)
            Loader-->>API: codebook items
            API->>Decoder: decode_constellations(items, request)
            Decoder-->>API: decoded output
            API-->>Client: 200 OK + result
        end
    else No signature check
        API->>Loader: load codebook(codebook_path?)
        Loader-->>API: codebook items
        API->>Decoder: decode_constellations(items, request)
        Decoder-->>API: decoded output
        API-->>Client: 200 OK + result
    end
Loading

Estimated Code Review Effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Poem

🐰 A sig and a codebook snug and bright,
safeBase sends links into the night.
Parsers tidy, domains in line,
CHIT nods true — the hops align.
Decode, calibrate — all set to flight.

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 33.33% which is insufficient. The required threshold is 80.00%. Write docstrings for the functions missing them to satisfy the coverage threshold.
✅ Passed checks (2 passed)
Check name Status Explanation
Title check ✅ Passed The title 'fix(security): resolve 6 final CodeQL alerts' directly and clearly describes the main objective of the PR, following conventional commit format.
Description check ✅ Passed The PR description comprehensively covers the Summary, Testing sections with detailed test plans, Required Checks with checkboxes, and includes thorough alert mapping and documentation deliverables.

✏️ Tip: You can configure your own custom pre-merge checks in the settings.

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  • Post copyable unit tests in a comment
  • Commit unit tests in branch fix/codeql-final

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else:
path = CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl"
items = []
if not os.path.exists(path):

Check failure

Code scanning / CodeQL

Uncontrolled data used in path expression High

This path depends on a
user-provided value
.
This path depends on a
user-provided value
.
This path depends on a
user-provided value
.
This path depends on a
user-provided value
.

Copilot Autofix

AI 7 months ago

In general, the fix is to validate any user‑influenced path before using it for filesystem access. A robust pattern is to (1) define a trusted root directory, (2) normalize/resolve the candidate path, and (3) enforce that the final path remains under the trusted root, and optionally (4) restrict to an allow‑list of filenames.

For this specific code, the unsafe part is _load_codebook in pmoves/services/gateway/gateway/api/chit.py. The function currently takes codebook_path, extracts os.path.basename(codebook_path), and joins it with codebook_dir (derived from CHIT_CODEBOOK_PATH). To keep behavior while adding safety:

  • Keep the idea that codebooks must reside in the same directory as the default CHIT_CODEBOOK_PATH.
  • Normalize both the root directory and the final candidate file path with os.path.abspath.
  • After constructing the candidate path, verify that it is still inside the trusted root with os.path.commonpath.
  • Optionally fall back to the default basename when no safe basename can be obtained.
  • Leave the public API (decode_constellations, endpoints in viz.py/chit.py) unchanged; only harden _load_codebook.

Concretely, in _load_codebook:

  1. Compute codebook_root = os.path.dirname(CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl") or ".", then normalize with os.path.abspath.
  2. When codebook_path is provided, compute safe_name = os.path.basename(codebook_path), and if it’s empty, fall back to os.path.basename(CHIT_CODEBOOK_PATH or "codebook.jsonl").
  3. Build candidate = os.path.abspath(os.path.join(codebook_root, safe_name)).
  4. Check os.path.commonpath([codebook_root, candidate]) == codebook_root. If not, log a warning and fall back to the default file under the root (or return an empty list).
  5. Use the validated candidate (or the default) as path.

This approach keeps existing behavior (user can still choose among files in the configured codebook directory) but ensures the path stays in that directory and removes CodeQL’s “uncontrolled path” concern.

Only pmoves/services/gateway/gateway/api/chit.py needs code edits; viz.py just passes strings through and does not itself access the filesystem.


Suggested changeset 1
pmoves/services/gateway/gateway/api/chit.py

Autofix patch

Autofix patch
Run the following command in your local git repository to apply this patch
cat << 'EOF' | git apply
diff --git a/pmoves/services/gateway/gateway/api/chit.py b/pmoves/services/gateway/gateway/api/chit.py
--- a/pmoves/services/gateway/gateway/api/chit.py
+++ b/pmoves/services/gateway/gateway/api/chit.py
@@ -213,15 +213,47 @@
     return {"ok": True, "locator": loc}
 
 def _load_codebook(codebook_path: Optional[str] = None):
+    """
+    Load a codebook file from a trusted directory.
+
+    If a codebook_path is provided, only its basename is honored, and the final
+    path is constrained to live under the directory of CHIT_CODEBOOK_PATH.
+    """
+    # Determine the trusted root directory for codebook files.
+    default_codebook = CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl"
+    codebook_root = os.path.dirname(default_codebook) or "."
+    codebook_root = os.path.abspath(codebook_root)
+
+    path: str
     if codebook_path:
+        # Only allow selecting a file by basename within the trusted root.
         safe_name = os.path.basename(codebook_path)
         if not safe_name:
-            safe_name = os.path.basename(CHIT_CODEBOOK_PATH or "codebook.jsonl")
-        codebook_dir = os.path.dirname(CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl") or "."
-        path = os.path.join(codebook_dir, safe_name)
+            safe_name = os.path.basename(default_codebook)
+        candidate = os.path.abspath(os.path.join(codebook_root, safe_name))
+        try:
+            # Ensure the candidate path stays within the trusted root directory.
+            if os.path.commonpath([codebook_root, candidate]) != codebook_root:
+                logger.warning(
+                    "Rejected codebook_path %r outside trusted directory %r",
+                    codebook_path,
+                    codebook_root,
+                )
+                path = default_codebook
+            else:
+                path = candidate
+        except ValueError:
+            # In case of invalid path components, fall back to default.
+            logger.warning(
+                "Invalid codebook_path %r; falling back to default %r",
+                codebook_path,
+                default_codebook,
+            )
+            path = default_codebook
     else:
-        path = CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl"
-    items = []
+        path = default_codebook
+
+    items: List[Dict[str, Any]] = []
     if not os.path.exists(path):
         return items
     with open(path, "r", encoding="utf-8") as f:
EOF
@@ -213,15 +213,47 @@
return {"ok": True, "locator": loc}

def _load_codebook(codebook_path: Optional[str] = None):
"""
Load a codebook file from a trusted directory.

If a codebook_path is provided, only its basename is honored, and the final
path is constrained to live under the directory of CHIT_CODEBOOK_PATH.
"""
# Determine the trusted root directory for codebook files.
default_codebook = CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl"
codebook_root = os.path.dirname(default_codebook) or "."
codebook_root = os.path.abspath(codebook_root)

path: str
if codebook_path:
# Only allow selecting a file by basename within the trusted root.
safe_name = os.path.basename(codebook_path)
if not safe_name:
safe_name = os.path.basename(CHIT_CODEBOOK_PATH or "codebook.jsonl")
codebook_dir = os.path.dirname(CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl") or "."
path = os.path.join(codebook_dir, safe_name)
safe_name = os.path.basename(default_codebook)
candidate = os.path.abspath(os.path.join(codebook_root, safe_name))
try:
# Ensure the candidate path stays within the trusted root directory.
if os.path.commonpath([codebook_root, candidate]) != codebook_root:
logger.warning(
"Rejected codebook_path %r outside trusted directory %r",
codebook_path,
codebook_root,
)
path = default_codebook
else:
path = candidate
except ValueError:
# In case of invalid path components, fall back to default.
logger.warning(
"Invalid codebook_path %r; falling back to default %r",
codebook_path,
default_codebook,
)
path = default_codebook
else:
path = CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl"
items = []
path = default_codebook

items: List[Dict[str, Any]] = []
if not os.path.exists(path):
return items
with open(path, "r", encoding="utf-8") as f:
Copilot is powered by AI and may make mistakes. Always verify output.
Comment thread pmoves/services/gateway/gateway/api/chit.py Fixed

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Actionable comments posted: 4

🧹 Nitpick comments (2)
pmoves/services/mcp_youtube_adapter.py (1)

562-567: LGTM — exact-match host validation correctly closes the spoofing vector.

The netloc == "youtube.com" check is necessary (bare domain doesn't satisfy .endswith(".youtube.com")), but netloc == "www.youtube.com" is redundant since it is already covered by netloc.endswith(".youtube.com").

♻️ Optional cleanup
-        if netloc == "youtube.com" or netloc == "www.youtube.com" or netloc.endswith(".youtube.com"):
+        if netloc == "youtube.com" or netloc.endswith(".youtube.com"):
-        elif netloc == "youtu.be" or netloc.endswith(".youtu.be"):
+        elif netloc == "youtu.be" or netloc.endswith(".youtu.be"):

(second line is already minimal — no change needed there)

🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@pmoves/services/mcp_youtube_adapter.py` around lines 562 - 567, The netloc
conditional is redundant: remove the explicit equality check for
"www.youtube.com" in the branch that parses query params so that the if becomes
netloc == "youtube.com" or netloc.endswith(".youtube.com"); update the condition
around variable netloc (from parsed.netloc.lower()) used in that block and keep
the subsequent parse_qs/video_id logic unchanged (functionality in the
surrounding code that reads parsed, parse_qs and assigns video_id should remain
intact).
pmoves/services/pmoves-yt/yt.py (1)

1106-1111: Add a debug log in the except clause — bare pass flagged by Ruff S110/BLE001.

urlparse almost never raises, so this is mostly dead code, but silently swallowing the exception makes debugging harder if it ever does fire.

♻️ Proposed fix
         try:
             netloc = urlparse(lowered).netloc
             if netloc == "soundcloud.com" or netloc.endswith(".soundcloud.com"):
                 return "soundcloud"
-        except Exception:
-            pass
+        except Exception as exc:  # pragma: no cover
+            logger.debug("_infer_platform: urlparse failed for %r: %s", url, exc)
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@pmoves/services/pmoves-yt/yt.py` around lines 1106 - 1111, The except block
that currently swallows any errors from urlparse(lowered).netloc should log the
exception for debugging rather than using a bare pass; update the except clause
in the netloc check (the block that tests for "soundcloud.com" /
.endswith(".soundcloud.com")) to call the module's logger (e.g., logger.debug or
logger.exception) with context including the lowered URL and exception info (use
exc_info=True or logger.exception) so the error isn't silently swallowed.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@pmoves/services/gateway/gateway/api/chit.py`:
- Around line 282-284: The endpoint currently accepts body.codebook_path
(checked only under CHIT_REQUIRE_SIGNATURE which defaults false), leaving the
API able to receive arbitrary codebook_path values; remove codebook_path from
the public request model and all uses of body.codebook_path in the handler,
delete the inert CHIT_REQUIRE_SIGNATURE/verify_hmac guard around it, and instead
keep codebook loading internal via _load_codebook (ensure _load_codebook
enforces basename() restriction and only accepts server-side known names or an
internal enum/id), and update any callers/tests to supply only internal
identifiers rather than a public codebook_path.
- Around line 209-226: The _load_codebook function still accepts and uses a
user-supplied codebook_path (taint source) and calls json.loads without handling
JSONDecodeError; remove the user-input surface by deleting the codebook_path
parameter from all public APIs and call sites (remove the field from
GeometryDecodeTextRequest and drop the codebook_path argument in
decode_constellations, geometry_decode_text, and geometry_calibration_report) so
_load_codebook reads exclusively from CHIT_CODEBOOK_PATH (or the test default);
also harden _load_codebook by wrapping each json.loads(ln) in a try/except
JSONDecodeError and continue on error so a single bad line does not raise a 500.
- Around line 323-329: geometry_calibration_report currently accepts multiple
body parameters (cgp: CGP and sig: Optional[Dict]) which breaks FastAPI's
single-root-body contract; create a single request Pydantic model (e.g.,
GeometryCalibrationRequest with fields cgp: CGP, codebook_path: Optional[str],
sig: Optional[Dict[str, Any]]) and change the endpoint signature to accept that
model (e.g., body: GeometryCalibrationRequest), then update the handler to read
body.codebook_path and body.cgp (use body.sig if present) when building the
payload for verify_hmac and honoring CHIT_REQUIRE_SIGNATURE; ensure verify_hmac
gets the same payload shape it expects and preserve the existing HTTPException
on failed verification.

In `@pmoves/services/gateway/web/client.html`:
- Around line 52-65: The generated link hrefs use the user-controlled base when
building pairs (the pairs array and the code that sets a.href), allowing a
javascript: URI to be injected; fix by validating/sanitizing base before
constructing hrefs (e.g., parse base with the URL constructor or check its
protocol and only allow http:, https:, or safe relative paths like starting with
"/"), reject or normalize any other schemes, and then build the hrefs for the
pairs using the validated base (ensure the logic around pairs, base, shapeId,
and the a.href assignment uses the sanitized/validated value).

---

Nitpick comments:
In `@pmoves/services/mcp_youtube_adapter.py`:
- Around line 562-567: The netloc conditional is redundant: remove the explicit
equality check for "www.youtube.com" in the branch that parses query params so
that the if becomes netloc == "youtube.com" or netloc.endswith(".youtube.com");
update the condition around variable netloc (from parsed.netloc.lower()) used in
that block and keep the subsequent parse_qs/video_id logic unchanged
(functionality in the surrounding code that reads parsed, parse_qs and assigns
video_id should remain intact).

In `@pmoves/services/pmoves-yt/yt.py`:
- Around line 1106-1111: The except block that currently swallows any errors
from urlparse(lowered).netloc should log the exception for debugging rather than
using a bare pass; update the except clause in the netloc check (the block that
tests for "soundcloud.com" / .endswith(".soundcloud.com")) to call the module's
logger (e.g., logger.debug or logger.exception) with context including the
lowered URL and exception info (use exc_info=True or logger.exception) so the
error isn't silently swallowed.

Comment on lines +209 to 226
def _load_codebook(codebook_path: Optional[str] = None):
if codebook_path:
safe_name = os.path.basename(codebook_path)
if not safe_name:
safe_name = os.path.basename(CHIT_CODEBOOK_PATH or "codebook.jsonl")
codebook_dir = os.path.dirname(CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl") or "."
path = os.path.join(codebook_dir, safe_name)
else:
path = CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl"
items = []
if not os.path.exists(path):
return items
with open(path, "r", encoding="utf-8") as f:
for ln in f:
ln=ln.strip();
if ln: items.append(json.loads(ln))
ln = ln.strip()
if ln:
items.append(json.loads(ln))
return items

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⚠️ Potential issue | 🔴 Critical

CodeQL alerts #34, #35, #36 are NOT resolved — path still derives from user input, and json.loads has no error handling.

Path traversal (CodeQL lines 219 & 221): os.path.basename() constrains traversal to the codebook directory, but CodeQL's taint analysis correctly observes that safe_name still originates from user-supplied codebook_path. The pipeline confirms this — both alerts remain open. The PR description states that "_load_codebook() now always reads the path from the CHIT_CODEBOOK_PATH environment variable", but codebook_path: Optional[str] = None remains in GeometryDecodeTextRequest (line 125) and in the geometry_calibration_report signature. The only fix that closes these alerts is removing codebook_path from all public API surfaces and reading exclusively from the env var.

Malformed codebook lines (line 225): json.loads(ln) has no error handling. A single malformed JSON line causes a JSONDecodeError that propagates as a 500 error. The reference implementation in pmoves/services/hi-rag-gateway/gateway.py (lines 193–196) wraps each line in a try/except and continues — this PR regresses that behaviour.

🛡️ Proposed fix — remove user input from path construction entirely
-def _load_codebook(codebook_path: Optional[str] = None):
-    if codebook_path:
-        safe_name = os.path.basename(codebook_path)
-        if not safe_name:
-            safe_name = os.path.basename(CHIT_CODEBOOK_PATH or "codebook.jsonl")
-        codebook_dir = os.path.dirname(CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl") or "."
-        path = os.path.join(codebook_dir, safe_name)
-    else:
-        path = CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl"
+def _load_codebook():
+    path = CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl"
     items = []
     if not os.path.exists(path):
         return items
     with open(path, "r", encoding="utf-8") as f:
         for ln in f:
             ln = ln.strip()
             if ln:
-                items.append(json.loads(ln))
+                try:
+                    items.append(json.loads(ln))
+                except json.JSONDecodeError:
+                    continue
     return items

Then update all call sites (decode_constellations, geometry_decode_text, geometry_calibration_report) to remove the codebook_path argument, and remove the field from GeometryDecodeTextRequest (line 125) and from the geometry_calibration_report route signature.

🧰 Tools
🪛 GitHub Check: CodeQL

[failure] 219-219: Uncontrolled data used in path expression
This path depends on a user-provided value.
This path depends on a user-provided value.
This path depends on a user-provided value.
This path depends on a user-provided value.
This path depends on a user-provided value.
This path depends on a user-provided value.
This path depends on a user-provided value.


[failure] 221-221: Uncontrolled data used in path expression
This path depends on a user-provided value.
This path depends on a user-provided value.
This path depends on a user-provided value.
This path depends on a user-provided value.
This path depends on a user-provided value.
This path depends on a user-provided value.
This path depends on a user-provided value.

🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@pmoves/services/gateway/gateway/api/chit.py` around lines 209 - 226, The
_load_codebook function still accepts and uses a user-supplied codebook_path
(taint source) and calls json.loads without handling JSONDecodeError; remove the
user-input surface by deleting the codebook_path parameter from all public APIs
and call sites (remove the field from GeometryDecodeTextRequest and drop the
codebook_path argument in decode_constellations, geometry_decode_text, and
geometry_calibration_report) so _load_codebook reads exclusively from
CHIT_CODEBOOK_PATH (or the test default); also harden _load_codebook by wrapping
each json.loads(ln) in a try/except JSONDecodeError and continue on error so a
single bad line does not raise a 500.

Comment on lines +282 to +284
if body.codebook_path and CHIT_REQUIRE_SIGNATURE:
if not verify_hmac(body.model_dump()):
raise HTTPException(status_code=403, detail="codebook_path requires CHIT-signed request")

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⚠️ Potential issue | 🟠 Major

codebook_path guard is inert under the default configuration.

CHIT_REQUIRE_SIGNATURE defaults to false, so body.codebook_path and CHIT_REQUIRE_SIGNATURE is always False in a vanilla deployment. Any caller can freely supply codebook_path values with no HMAC check — the only protection is the basename() restriction in _load_codebook. This means the file-probing risk (enumerating files in the codebook directory) is not mitigated by default.

The fundamental fix is to remove codebook_path from the public API (see comment on _load_codebook), which makes this guard unnecessary.

🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@pmoves/services/gateway/gateway/api/chit.py` around lines 282 - 284, The
endpoint currently accepts body.codebook_path (checked only under
CHIT_REQUIRE_SIGNATURE which defaults false), leaving the API able to receive
arbitrary codebook_path values; remove codebook_path from the public request
model and all uses of body.codebook_path in the handler, delete the inert
CHIT_REQUIRE_SIGNATURE/verify_hmac guard around it, and instead keep codebook
loading internal via _load_codebook (ensure _load_codebook enforces basename()
restriction and only accepts server-side known names or an internal enum/id),
and update any callers/tests to supply only internal identifiers rather than a
public codebook_path.

Comment thread pmoves/services/gateway/gateway/api/chit.py Outdated
Comment thread pmoves/services/gateway/web/client.html
… model, XSS, netloc

- chit.py: wrap json.loads in _load_codebook with JSONDecodeError handler
- chit.py: introduce GeometryCalibrationRequest model for single-root-body
- client.html: add safeBase() to prevent javascript: URI XSS injection
- client.html: update calibration handler to send {cgp: cgp} wrapper
- mcp_youtube_adapter.py: remove redundant www.youtube.com netloc check
- yt.py: replace bare except:pass with logger.debug in _infer_platform

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
items = []
if not os.path.exists(path):
return items
with open(path, "r", encoding="utf-8") as f:

Check failure

Code scanning / CodeQL

Uncontrolled data used in path expression High

This path depends on a
user-provided value
.
This path depends on a
user-provided value
.
This path depends on a
user-provided value
.
This path depends on a
user-provided value
.

Copilot Autofix

AI 7 months ago

At a high level, the fix is to ensure that any path derived from untrusted input is both (1) rooted inside a designated safe directory and (2) restricted to a safe filename pattern, so that user input can’t cause access to arbitrary files. This can be done by combining os.path.basename or a stricter sanitization with a configured codebook directory, normalizing the result, and verifying that it still lies under that directory. We should also avoid silently accepting environment defaults that might point outside that controlled area.

For this codebase, the most straightforward fix without changing behavior is:

  1. Introduce a dedicated, normalized “codebook directory” derived from CHIT_CODEBOOK_PATH once, and use that as the root for all dynamic loads.
  2. In _load_codebook:
    • If a codebook_path argument is provided, treat it as a filename only (drop any directory elements with os.path.basename).
    • If the resulting name is empty, fall back to the basename of CHIT_CODEBOOK_PATH.
    • Join this filename with the safe directory, normalize with os.path.normpath, and verify it is still within the safe directory (prefix check after ensuring the directory has a trailing separator).
    • Only then, open the file.
  3. For the default case where codebook_path is not provided, we likewise normalize CHIT_CODEBOOK_PATH and ensure it resides under the same safe directory. Since we cannot change semantics much, we will continue to allow the configured CHIT_CODEBOOK_PATH, but we’ll still normalize it and keep the canonical directory for user‑supplied overrides.

We do not need to touch viz.py directly for the taint issue, since the risky open() is in chit.py; we instead ensure that _load_codebook is robust regardless of where its codebook_path comes from. No new external libraries are necessary beyond os, which is already imported.

Concretely, in pmoves/services/gateway/gateway/api/chit.py:

  • Precompute CHIT_CODEBOOK_DIR as the directory of CHIT_CODEBOOK_PATH (or a default), and normalize it to an absolute path.
  • Rewrite _load_codebook to:
    • Compute a target_path based on a sanitized filename (if codebook_path is given) or the configured default file (if not).
    • Normalize target_path and ensure it starts with CHIT_CODEBOOK_DIR + os.sep (or equals the directory itself plus filename) to prevent escaping.
    • Use target_path in os.path.exists and open.

This approach preserves the existing feature (selecting alternative codebook files by name) but prevents users from specifying arbitrary directories or traversal paths, addressing all variants of the alert at the shared sink.

Suggested changeset 1
pmoves/services/gateway/gateway/api/chit.py

Autofix patch

Autofix patch
Run the following command in your local git repository to apply this patch
cat << 'EOF' | git apply
diff --git a/pmoves/services/gateway/gateway/api/chit.py b/pmoves/services/gateway/gateway/api/chit.py
--- a/pmoves/services/gateway/gateway/api/chit.py
+++ b/pmoves/services/gateway/gateway/api/chit.py
@@ -14,6 +14,8 @@
 CHIT_DECRYPT_ANCHORS = os.getenv("CHIT_DECRYPT_ANCHORS","false").lower()=="true"
 CHIT_PASSPHRASE = os.getenv("CHIT_PASSPHRASE","change-me")
 CHIT_CODEBOOK_PATH = os.getenv("CHIT_CODEBOOK_PATH","tests/data/codebook.jsonl")
+# Normalized base directory for codebook files; user-supplied filenames are restricted to this directory.
+CHIT_CODEBOOK_DIR = os.path.dirname(os.path.abspath(CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl")) or os.path.abspath(".")
 CHIT_LEARNED_TEXT = os.getenv("CHIT_LEARNED_TEXT","false").lower()=="true"
 CHIT_T5_MODEL = os.getenv("CHIT_T5_MODEL")  # optional HF model path/name
 
@@ -213,25 +215,44 @@
     return {"ok": True, "locator": loc}
 
 def _load_codebook(codebook_path: Optional[str] = None):
+    """
+    Load codebook entries from a file.
+
+    If codebook_path is provided, it is treated as a filename only and forced to reside
+    under CHIT_CODEBOOK_DIR. This avoids using arbitrary filesystem paths based on
+    untrusted input.
+    """
+    # Determine the target path within the configured codebook directory.
     if codebook_path:
         safe_name = os.path.basename(codebook_path)
         if not safe_name:
             safe_name = os.path.basename(CHIT_CODEBOOK_PATH or "codebook.jsonl")
-        codebook_dir = os.path.dirname(CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl") or "."
-        path = os.path.join(codebook_dir, safe_name)
+        target_path = os.path.join(CHIT_CODEBOOK_DIR, safe_name)
     else:
-        path = CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl"
-    items = []
-    if not os.path.exists(path):
+        # Use the configured default path, but normalize it to an absolute path.
+        target_path = os.path.abspath(CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl")
+
+    # Normalize and enforce that the path stays within the configured codebook directory
+    norm_path = os.path.normpath(target_path)
+    # Only enforce the directory constraint for user-supplied filenames; the default path
+    # is assumed to be trusted configuration.
+    if codebook_path:
+        codebook_dir_with_sep = CHIT_CODEBOOK_DIR.rstrip(os.sep) + os.sep
+        if not norm_path.startswith(codebook_dir_with_sep):
+            logger.warning("Rejected codebook_path outside of CHIT_CODEBOOK_DIR: %s", norm_path)
+            return []
+
+    items: List[Dict[str, Any]] = []
+    if not os.path.exists(norm_path):
         return items
-    with open(path, "r", encoding="utf-8") as f:
+    with open(norm_path, "r", encoding="utf-8") as f:
         for ln in f:
             ln = ln.strip()
             if ln:
                 try:
                     items.append(json.loads(ln))
                 except json.JSONDecodeError:
-                    logger.warning("Skipping malformed codebook line in %s", path)
+                    logger.warning("Skipping malformed codebook line in %s", norm_path)
                     continue
     return items
 
EOF
@@ -14,6 +14,8 @@
CHIT_DECRYPT_ANCHORS = os.getenv("CHIT_DECRYPT_ANCHORS","false").lower()=="true"
CHIT_PASSPHRASE = os.getenv("CHIT_PASSPHRASE","change-me")
CHIT_CODEBOOK_PATH = os.getenv("CHIT_CODEBOOK_PATH","tests/data/codebook.jsonl")
# Normalized base directory for codebook files; user-supplied filenames are restricted to this directory.
CHIT_CODEBOOK_DIR = os.path.dirname(os.path.abspath(CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl")) or os.path.abspath(".")
CHIT_LEARNED_TEXT = os.getenv("CHIT_LEARNED_TEXT","false").lower()=="true"
CHIT_T5_MODEL = os.getenv("CHIT_T5_MODEL") # optional HF model path/name

@@ -213,25 +215,44 @@
return {"ok": True, "locator": loc}

def _load_codebook(codebook_path: Optional[str] = None):
"""
Load codebook entries from a file.

If codebook_path is provided, it is treated as a filename only and forced to reside
under CHIT_CODEBOOK_DIR. This avoids using arbitrary filesystem paths based on
untrusted input.
"""
# Determine the target path within the configured codebook directory.
if codebook_path:
safe_name = os.path.basename(codebook_path)
if not safe_name:
safe_name = os.path.basename(CHIT_CODEBOOK_PATH or "codebook.jsonl")
codebook_dir = os.path.dirname(CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl") or "."
path = os.path.join(codebook_dir, safe_name)
target_path = os.path.join(CHIT_CODEBOOK_DIR, safe_name)
else:
path = CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl"
items = []
if not os.path.exists(path):
# Use the configured default path, but normalize it to an absolute path.
target_path = os.path.abspath(CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl")

# Normalize and enforce that the path stays within the configured codebook directory
norm_path = os.path.normpath(target_path)
# Only enforce the directory constraint for user-supplied filenames; the default path
# is assumed to be trusted configuration.
if codebook_path:
codebook_dir_with_sep = CHIT_CODEBOOK_DIR.rstrip(os.sep) + os.sep
if not norm_path.startswith(codebook_dir_with_sep):
logger.warning("Rejected codebook_path outside of CHIT_CODEBOOK_DIR: %s", norm_path)
return []

items: List[Dict[str, Any]] = []
if not os.path.exists(norm_path):
return items
with open(path, "r", encoding="utf-8") as f:
with open(norm_path, "r", encoding="utf-8") as f:
for ln in f:
ln = ln.strip()
if ln:
try:
items.append(json.loads(ln))
except json.JSONDecodeError:
logger.warning("Skipping malformed codebook line in %s", path)
logger.warning("Skipping malformed codebook line in %s", norm_path)
continue
return items

Copilot is powered by AI and may make mistakes. Always verify output.

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Actionable comments posted: 3

Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (1)
pmoves/services/gateway/gateway/api/chit.py (1)

365-366: ⚠️ Potential issue | 🟠 Major

Unclosed file handle — use a context manager.

open(...).write(...) relies on CPython's reference counting to close the file immediately, but this is not guaranteed and can exhaust file descriptors under load or on PyPy/other runtimes.

🛡️ Proposed fix
-    open("artifacts/reconstruction_report.md","w").write(f"# CHIT Calibration Report\n\n- KL: {kl(tgt,emp):.4f}\n- JS: {js(tgt,emp):.4f}\n- Coverage: {cov:.2f}\n")
+    with open("artifacts/reconstruction_report.md", "w") as _fh:
+        _fh.write(f"# CHIT Calibration Report\n\n- KL: {kl(tgt,emp):.4f}\n- JS: {js(tgt,emp):.4f}\n- Coverage: {cov:.2f}\n")
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@pmoves/services/gateway/gateway/api/chit.py` around lines 365 - 366, The file
handle for writing "artifacts/reconstruction_report.md" is left unmanaged;
replace the direct open(...).write(...) call with a context manager to ensure
the file is closed (use with open("artifacts/reconstruction_report.md", "w",
encoding="utf-8") as f: f.write(...)). Keep the existing
os.makedirs("artifacts", exist_ok=True) and the same f-string content that uses
kl(tgt,emp), js(tgt,emp), and cov so the output stays identical but the file
descriptor is reliably closed.
🧹 Nitpick comments (2)
pmoves/services/pmoves-yt/yt.py (1)

1104-1112: Security fix is correct — optional: narrow the exception catch for Ruff BLE001.

The exact-netloc matching (netloc == "soundcloud.com" or netloc.endswith(".soundcloud.com")) and the soundcloud: URI-scheme guard are both sound fixes that eliminate the hostname-spoofing vector.

Ruff flags the except Exception at line 1110 (BLE001). Since urlparse is a stdlib function that rarely raises and this is a pure safety net, narrowing to (ValueError, AttributeError) satisfies the linter without changing behavior.

♻️ Proposed fix
-        except Exception:
+        except (ValueError, AttributeError):
             logger.debug("_infer_platform: urlparse failed for %r", lowered)
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@pmoves/services/pmoves-yt/yt.py` around lines 1104 - 1112, Narrow the broad
exception handler in the platform inference logic: in the _infer_platform flow
where urlparse(lowered).netloc is read (and logger.debug("_infer_platform:
urlparse failed for %r", lowered) is called on failure), replace the broad
"except Exception" with a narrower "except (ValueError, AttributeError)" so Ruff
BLE001 is satisfied while preserving the safety net for urlparse-related
failures.
pmoves/services/gateway/gateway/api/chit.py (1)

341-341: Ruff E701: split the early-return onto its own line.

♻️ Proposed fix
-    if not items: return {"KL": None, "JS": None, "coverage": 0.0}
+    if not items:
+        return {"KL": None, "JS": None, "coverage": 0.0}
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@pmoves/services/gateway/gateway/api/chit.py` at line 341, Split the
single-line conditional return into a multi-line if block to satisfy Ruff E701:
replace the one-liner "if not items: return {\"KL\": None, \"JS\": None,
\"coverage\": 0.0}" with an explicit block that checks "items" and then returns
the dict on the next line (e.g., "if not items:\n    return {...}"), keeping the
same returned keys ("KL", "JS", "coverage") and preserving surrounding logic in
the function where "items" is used.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@pmoves/services/gateway/gateway/api/chit.py`:
- Around line 121-124: Remove user-controlled codebook_path from all public
request models and call sites: delete the field from GeometryCalibrationRequest
and GeometryDecodeTextRequest, update decode_constellations,
geometry_decode_text, and geometry_calibration_report to no longer accept or
pass a codebook_path, and make _load_codebook always read the filename from the
CHIT_CODEBOOK_PATH env var (or a central env helper) so filenames are not
supplied by callers; also drop the now-unused HMAC guards and any verify_hmac
checks that only protected codebook_path (they are inert when
CHIT_REQUIRE_SIGNATURE is false). Ensure _load_codebook constructs its path
strictly from CHIT_CODEBOOK_PATH (and a fixed basename if needed) and remove
references to user-supplied codebook_path throughout the call chain.
- Line 342: The code directly indexes body.cgp.super_nodes[0].constellations[0]
which will raise IndexError for empty super_nodes or empty constellations;
update the request handler (the function that references body and body.cgp) to
validate that body.cgp.super_nodes is non-empty and that
super_nodes[0].constellations is non-empty before indexing, and if either is
empty raise a 400-level error (e.g., raise HTTPException(status_code=400,
detail="cgp.super_nodes must contain at least one SuperNode with at least one
Constellation") or return an appropriate 400 response); ensure you reference the
same variables used in the diff (body, cgp, super_nodes, constellations, const)
and perform checks immediately before the line that assigns const to avoid the
IndexError.

In `@pmoves/services/gateway/web/client.html`:
- Around line 42-44: The current catch block in safeBase returns a
protocol-relative URL because it accepts any string starting with "/" (so
"//evil.com" bypasses URL parsing); change the fallback to only allow
single-slash relative paths by requiring raw.startsWith("/") and NOT
raw.startsWith("//") (i.e., accept "/…" but reject "//…"), so update the
condition in the catch handling for raw accordingly.

---

Outside diff comments:
In `@pmoves/services/gateway/gateway/api/chit.py`:
- Around line 365-366: The file handle for writing
"artifacts/reconstruction_report.md" is left unmanaged; replace the direct
open(...).write(...) call with a context manager to ensure the file is closed
(use with open("artifacts/reconstruction_report.md", "w", encoding="utf-8") as
f: f.write(...)). Keep the existing os.makedirs("artifacts", exist_ok=True) and
the same f-string content that uses kl(tgt,emp), js(tgt,emp), and cov so the
output stays identical but the file descriptor is reliably closed.

---

Duplicate comments:
In `@pmoves/services/gateway/web/client.html`:
- Around line 57-76: The links() function assigns a potentially tainted base
into a.href (a.href = href), so move or apply the existing safeBase sanitization
inside links: call safeBase(base) at the start of links (or validate/normalize
the resulting URL/protocol) and use that sanitized value when building the
pairs/href strings for element creation (ensuring the hrefs do not begin with
javascript: and are proper http(s) or file paths); this keeps callers unchanged
but closes the taint path and prevents javascript: URI injection from unsafe
base values.

---

Nitpick comments:
In `@pmoves/services/gateway/gateway/api/chit.py`:
- Line 341: Split the single-line conditional return into a multi-line if block
to satisfy Ruff E701: replace the one-liner "if not items: return {\"KL\": None,
\"JS\": None, \"coverage\": 0.0}" with an explicit block that checks "items" and
then returns the dict on the next line (e.g., "if not items:\n    return
{...}"), keeping the same returned keys ("KL", "JS", "coverage") and preserving
surrounding logic in the function where "items" is used.

In `@pmoves/services/pmoves-yt/yt.py`:
- Around line 1104-1112: Narrow the broad exception handler in the platform
inference logic: in the _infer_platform flow where urlparse(lowered).netloc is
read (and logger.debug("_infer_platform: urlparse failed for %r", lowered) is
called on failure), replace the broad "except Exception" with a narrower "except
(ValueError, AttributeError)" so Ruff BLE001 is satisfied while preserving the
safety net for urlparse-related failures.

Comment on lines +121 to +124
class GeometryCalibrationRequest(BaseModel):
cgp: CGP
codebook_path: Optional[str] = None
sig: Optional[Dict[str, Any]] = None

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⚠️ Potential issue | 🔴 Critical

PR claim is incorrect — CodeQL alerts #34/35/36 are NOT resolved; codebook_path remains a user-controlled path expression.

The PR description states "_load_codebook() now always reads from the CHIT_CODEBOOK_PATH environment variable," but the code contradicts this:

  • GeometryCalibrationRequest.codebook_path (line 123) and GeometryDecodeTextRequest.codebook_path (line 131) both remain public API fields accepting arbitrary caller input.
  • _load_codebook(codebook_path) at line 215 uses os.path.basename(codebook_path) (line 217) to restrict traversal depth, but the result is still user-controlled. path = os.path.join(codebook_dir, safe_name) at line 221 means any filename that exists in the same directory as CHIT_CODEBOOK_PATH can be read by any unauthenticated caller.
  • The static analysis confirms: CodeQL alerts are still active at lines 225 and 227.

The HMAC guard added at lines 292–294 (geometry_decode_text) and lines 334–339 (geometry_calibration_report) is inert in the default configuration: CHIT_REQUIRE_SIGNATURE defaults to "false", so body.codebook_path and CHIT_REQUIRE_SIGNATURE is always False in a vanilla deployment. Any caller can freely enumerate files in the codebook directory without any authentication.

Required fix (matches the previous unresolved review suggestion):

🛡️ Proposed fix — remove codebook_path from all public surfaces
-def _load_codebook(codebook_path: Optional[str] = None):
-    if codebook_path:
-        safe_name = os.path.basename(codebook_path)
-        if not safe_name:
-            safe_name = os.path.basename(CHIT_CODEBOOK_PATH or "codebook.jsonl")
-        codebook_dir = os.path.dirname(CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl") or "."
-        path = os.path.join(codebook_dir, safe_name)
-    else:
-        path = CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl"
+def _load_codebook():
+    path = CHIT_CODEBOOK_PATH or "tests/data/codebook.jsonl"
     items = []
     if not os.path.exists(path):
         return items
     with open(path, "r", encoding="utf-8") as f:
         for ln in f:
             ln = ln.strip()
             if ln:
                 try:
                     items.append(json.loads(ln))
                 except json.JSONDecodeError:
                     logger.warning("Skipping malformed codebook line in %s", path)
                     continue
     return items

Then remove codebook_path from GeometryCalibrationRequest, GeometryDecodeTextRequest, decode_constellations, geometry_decode_text, and geometry_calibration_report, and drop the now-unnecessary verify_hmac guards for codebook_path.

As per coding guidelines: "Prefer central env helpers and *_FILE secret loading paths. Flag direct critical-secret reads and plaintext fallbacks."

Also applies to: 131-132, 215-236, 292-294, 334-340

🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@pmoves/services/gateway/gateway/api/chit.py` around lines 121 - 124, Remove
user-controlled codebook_path from all public request models and call sites:
delete the field from GeometryCalibrationRequest and GeometryDecodeTextRequest,
update decode_constellations, geometry_decode_text, and
geometry_calibration_report to no longer accept or pass a codebook_path, and
make _load_codebook always read the filename from the CHIT_CODEBOOK_PATH env var
(or a central env helper) so filenames are not supplied by callers; also drop
the now-unused HMAC guards and any verify_hmac checks that only protected
codebook_path (they are inert when CHIT_REQUIRE_SIGNATURE is false). Ensure
_load_codebook constructs its path strictly from CHIT_CODEBOOK_PATH (and a fixed
basename if needed) and remove references to user-supplied codebook_path
throughout the call chain.

items = _load_codebook(body.codebook_path)
if not items: return {"KL": None, "JS": None, "coverage": 0.0}
const = cgp.super_nodes[0].constellations[0]
const = body.cgp.super_nodes[0].constellations[0]

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⚠️ Potential issue | 🔴 Critical

IndexError if super_nodes or constellations is empty — results in a 500 instead of a 400.

Pydantic's List[SuperNode] and List[Constellation] allow empty lists by default. A CGP payload with "super_nodes": [] or "super_nodes": [{"id": "x", "constellations": []}] will cause an unhandled IndexError on this line, surfaced as a 500 Internal Server Error instead of a descriptive 400.

🛡️ Proposed fix
+    if not body.cgp.super_nodes or not body.cgp.super_nodes[0].constellations:
+        raise HTTPException(status_code=400, detail="CGP must contain at least one super_node with at least one constellation")
     const = body.cgp.super_nodes[0].constellations[0]
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@pmoves/services/gateway/gateway/api/chit.py` at line 342, The code directly
indexes body.cgp.super_nodes[0].constellations[0] which will raise IndexError
for empty super_nodes or empty constellations; update the request handler (the
function that references body and body.cgp) to validate that
body.cgp.super_nodes is non-empty and that super_nodes[0].constellations is
non-empty before indexing, and if either is empty raise a 400-level error (e.g.,
raise HTTPException(status_code=400, detail="cgp.super_nodes must contain at
least one SuperNode with at least one Constellation") or return an appropriate
400 response); ensure you reference the same variables used in the diff (body,
cgp, super_nodes, constellations, const) and perform checks immediately before
the line that assigns const to avoid the IndexError.

Comment on lines +42 to +44
} catch (_) {
if (raw.startsWith("/")) return raw;
}

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⚠️ Potential issue | 🟡 Minor

//host protocol-relative URLs pass the relative-path fallback.

"//evil.com".startsWith("/") is true, so safeBase("//evil.com") returns "//evil.com" without triggering the new URL() parse (which throws for protocol-relative inputs). Setting a.href = "//evil.com/viz/shape/..." then navigates to evil.com using the page's current protocol — an open-redirect / phishing vector.

🛡️ Proposed fix — require single-slash relative paths only
-    if (raw.startsWith("/")) return raw;
+    if (raw.startsWith("/") && !raw.startsWith("//")) return raw;
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@pmoves/services/gateway/web/client.html` around lines 42 - 44, The current
catch block in safeBase returns a protocol-relative URL because it accepts any
string starting with "/" (so "//evil.com" bypasses URL parsing); change the
fallback to only allow single-slash relative paths by requiring
raw.startsWith("/") and NOT raw.startsWith("//") (i.e., accept "/…" but reject
"//…"), so update the condition in the catch handling for raw accordingly.

…status

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

@coderabbitai coderabbitai Bot left a comment

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@pmoves/docs/PMOVESCHIT/IMPLEMENTATION_STATUS.md`:
- Around line 254-259: Update the "Codebook Path Sandboxing" row in
pmoves/docs/PMOVESCHIT/IMPLEMENTATION_STATUS.md to accurately reflect the
implemented fix in gateway/api/chit.py::_load_codebook(): if the path parameter
was removed, change the description to state that the codebook path parameter
was eliminated from the API surface (e.g., "Parameter removed — no external path
accepted"); if the parameter was retained and sandboxed, keep the current text
but then reconcile and update the PR objectives and the curl examples in
CHIT_GATEWAY_API.md to match the sandboxing behavior; verify the final wording
against the actual implementation using the CHIT_GATEWAY_API.md verification
script before committing.

Comment on lines +254 to +259
| HMAC-SHA256 Signing | ✅ Complete | `gateway/api/chit.py` `verify_hmac()` | Opt-in via `CHIT_REQUIRE_SIGNATURE=true` |
| AES-GCM Anchor Encryption | ✅ Complete | `gateway/api/chit.py` `decrypt_anchor()` | scrypt key derivation, AAD bound to constellation ID |
| XSS Protection (Web Client) | ✅ Complete | `gateway/web/client.html` `safeBase()` | Rejects non-http/https protocols |
| Codebook Path Sandboxing | ✅ Complete | `gateway/api/chit.py` `_load_codebook()` | Basename-only resolution prevents traversal |
| JSONDecodeError Handling | ✅ Complete | `gateway/api/chit.py` `_load_codebook()` | Malformed codebook lines logged and skipped |
| GeometryCalibrationRequest Model | ✅ Complete | `gateway/api/chit.py` | Pydantic wrapper prevents raw CGP injection |

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⚠️ Potential issue | 🟡 Minor

Codebook Path Sandboxing description may be operationally misleading depending on the implementation.

Line 257:

| Codebook Path Sandboxing | ✅ Complete | gateway/api/chit.py _load_codebook() | Basename-only resolution prevents traversal |

If the actual fix was parameter removal (as stated in the PR objectives), then "Basename-only resolution prevents traversal" inaccurately describes the measure — an operator reading this table would infer the parameter still exists but is filtered, not that it was eliminated from the API surface entirely. The description should be updated to match the implementation once the ground truth is confirmed (see verification script in the CHIT_GATEWAY_API.md comment above).

If the fix was sandboxing (parameter kept), the description is correct, but the PR objective text and CHIT_GATEWAY_API.md curl examples need to be reconciled instead.

As per coding guidelines (pmoves/docs/**): "Keep status claims aligned with evidence in runbooks and smokes."

🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@pmoves/docs/PMOVESCHIT/IMPLEMENTATION_STATUS.md` around lines 254 - 259,
Update the "Codebook Path Sandboxing" row in
pmoves/docs/PMOVESCHIT/IMPLEMENTATION_STATUS.md to accurately reflect the
implemented fix in gateway/api/chit.py::_load_codebook(): if the path parameter
was removed, change the description to state that the codebook path parameter
was eliminated from the API surface (e.g., "Parameter removed — no external path
accepted"); if the parameter was retained and sandboxed, keep the current text
but then reconcile and update the PR objectives and the curl examples in
CHIT_GATEWAY_API.md to match the sandboxing behavior; verify the final wording
against the actual implementation using the CHIT_GATEWAY_API.md verification
script before committing.

…ervice index, security posture

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
@POWERFULMOVES
POWERFULMOVES changed the base branch from main to PMOVES.AI-Edition-Hardened February 18, 2026 20:39
@POWERFULMOVES
POWERFULMOVES merged commit ced81c5 into PMOVES.AI-Edition-Hardened Feb 18, 2026
5 of 6 checks passed
@POWERFULMOVES
POWERFULMOVES deleted the fix/codeql-final branch March 7, 2026 21:46
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3 participants