[bug-yhg8dqypwmar] fix(check-naming): reject hidden provenance #4

Merged
architect merged 12 commits from architect/bug-yhg8dqypwmar/reject-hidden-provenance into main 2026-08-27 17:53:56 +00:00
2 changed files with 83 additions and 15 deletions
Showing only changes of commit cc0bee61a4 - Show all commits
+58 -15
View File
@@ -16,29 +16,72 @@ HEAD="${HEAD_SHA:-}"
VISIBLE_BODY=$(printf '%s\n' "${BODY}" | awk '
{
line=$0
while (line != "") {
fence_pos=1
while (fence_pos <= 4 && substr(line, fence_pos, 1) == " ") fence_pos++
fence_char=substr(line, fence_pos, 1)
fence_run=0
if (fence_char == "`" || fence_char == "~") {
while (substr(line, fence_pos + fence_run, 1) == fence_char) fence_run++
}
if (in_fence) {
print line
if (fence_char == active_fence_char && fence_run >= active_fence_run) in_fence=0
next
}
if (fence_run >= 3) {
in_fence=1
active_fence_char=fence_char
active_fence_run=fence_run
Review

Blocker: curl has neither a connection nor total timeout. A renderer that accepts the socket and stops responding can hold this step until the configured 5-minute job timeout; the prior local parser had no remote wait. Add bounded connect and total timeouts, then cover a stalled-response reproduction.

Blocker: `curl` has neither a connection nor total timeout. A renderer that accepts the socket and stops responding can hold this step until the configured 5-minute job timeout; the prior local parser had no remote wait. Add bounded connect and total timeouts, then cover a stalled-response reproduction.
print line
next
}
visible=""
pos=1
while (pos <= length(line)) {
if (in_comment) {
end=index(line, "-->")
if (end == 0) {
line=""
rest=substr(line, pos)
comment_end=index(rest, "-->")
if (comment_end == 0) {
pos=length(line) + 1
break
}
line=substr(line, end + 3)
visible=visible " "
pos += comment_end + 2
in_comment=0
continue
}
start=index(line, "<!--")
if (start == 0) break
before=substr(line, 1, start - 1)
rest=substr(line, start + 4)
end=index(rest, "-->")
if (end == 0) {
line=before
if (substr(line, pos, 1) == "`") {
ticks=1
Review

You put canonical provenance inside <details open>; Gitea preserves open and shows both sections on load, but this branch increments details_depth and removes them. The check exits 1 claiming the visible sections are missing. Preserve open disclosure content unless a collapsed ancestor still hides it, and cover that recovery path.

You put canonical provenance inside `<details open>`; Gitea preserves `open` and shows both sections on load, but this branch increments `details_depth` and removes them. The check exits 1 claiming the visible sections are missing. Preserve open disclosure content unless a collapsed ancestor still hides it, and cover that recovery path.
while (substr(line, pos + ticks, 1) == "`") ticks++
close_pos=pos + ticks
found_close=0
while (close_pos <= length(line)) {
Review

Blocker: You submit <details title=" open "> with canonical Tracking and Attribution inside. Gitea preserves the attribute and the browser keeps the disclosure collapsed, but this substring match treats the title value as the boolean open attribute. Exact head returns check-naming: ok.

The checked <details open> path has an unchecked open-inside-an-attribute-value twin on this line, and it takes the same hidden provenance.

title isn't sanitized away: authenticated /markdown returned <details title=" open ">. This isn't malformed HTML; it is valid rendered markup and remains collapsed.

Parse attributes as tokens, then add this exact reproduction.

Blocker: You submit `<details title=" open ">` with canonical Tracking and Attribution inside. Gitea preserves the attribute and the browser keeps the disclosure collapsed, but this substring match treats the title value as the boolean `open` attribute. Exact head returns `check-naming: ok`. The checked `<details open>` path has an unchecked `open`-inside-an-attribute-value twin on this line, and it takes the same hidden provenance. `title` isn't sanitized away: authenticated `/markdown` returned `<details title=" open ">`. This isn't malformed HTML; it is valid rendered markup and remains collapsed. Parse attributes as tokens, then add this exact reproduction.
Review

Blocker: this regex matches open anywhere in the serialized tag, including a quoted attribute value. <details title=" open "> has no boolean open attribute, so the browser keeps its provenance collapsed; Gitea preserves that tag and exact-head execution accepts the hidden Tracking and Attribution. Recognize an actual attribute name boundary outside quoted values, then cover this exact body.

Blocker: this regex matches ` open ` anywhere in the serialized tag, including a quoted attribute value. `<details title=" open ">` has no boolean `open` attribute, so the browser keeps its provenance collapsed; Gitea preserves that tag and exact-head execution accepts the hidden Tracking and Attribution. Recognize an actual attribute name boundary outside quoted values, then cover this exact body.
Review

Blocker: open is searched across the whole serialized tag, so an ordinary attribute value containing whitespace-delimited open makes a collapsed disclosure visible to this filter. Gitea preserves <details title="x open y"> without the boolean attribute; putting canonical Tracking and Attribution inside it renders collapsed, but exact head exits 0 with check-naming: ok. Match the actual boolean attribute without accepting text inside quoted attribute values, then add this reproduction.

Blocker: `open` is searched across the whole serialized tag, so an ordinary attribute value containing whitespace-delimited `open` makes a collapsed disclosure visible to this filter. Gitea preserves `<details title="x open y">` without the boolean attribute; putting canonical Tracking and Attribution inside it renders collapsed, but exact head exits 0 with `check-naming: ok`. Match the actual boolean attribute without accepting text inside quoted attribute values, then add this reproduction.
if (substr(line, close_pos, ticks) == substr(line, pos, ticks) &&
substr(line, close_pos + ticks, 1) != "`") {
found_close=1
break
}
close_pos++
}
if (found_close) {
visible=visible substr(line, pos, close_pos + ticks - pos)
pos=close_pos + ticks
continue
}
}
if (substr(line, pos, 4) == "<!--") {
visible=visible " "
in_comment=1
break
pos += 4
continue
}
line=before substr(rest, end + 3)
visible=visible substr(line, pos, 1)
pos++
}
print line
print visible
}
')
+25
View File
@@ -57,6 +57,22 @@ check_contract() {
fi
}
check_contract_pass() {
local desc="$1" body="$2" base="$3" head="$4"
local out rc=0
out=$(cd "${FIXTURES}" && HEAD_BRANCH="architect/bug-x7k2m9/contract" \
PR_TITLE="[bug-x7k2m9] Enforce contract" PR_AUTHOR="architect" \
PR_BODY="$body" BASE_SHA="$base" HEAD_SHA="$head" bash "$SCRIPT" 2>&1) || rc=$?
if [ "$rc" -eq 0 ] && printf '%s\n' "$out" | grep -Fq "check-naming: ok"; then
echo "PASS [$desc]"
PASS=$((PASS + 1))
else
echo "FAIL [$desc]: expected exit=0 and check-naming: ok, got exit=$rc"
echo " output: $out"
FAIL=$((FAIL + 1))
fi
}
# break-glass
check "dfritz exempt — invalid branch" 0 "totally/wrong-branch" "no prefix" "dfritz"
check "dfritz exempt — mismatch" 0 "dev/bug-abc/thing" "[bug-xyz] Thing" "dfritz"
@@ -107,6 +123,15 @@ check_contract "attribution must be in its own section" \
check_contract "hidden provenance does not satisfy the visible contract" \
$'<!--\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n-->' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract "comment removal cannot synthesize section headings" \
$'<!-- hidden -->## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n<!-- hidden -->## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract_pass "inline code containing comment opener stays visible" \
$'Use `<!--` when documenting an HTML comment opener.\n\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>' \
"$BASE" "$GOOD_HEAD"
check_contract_pass "fenced code containing comments stays visible" \
$'```html\n<!-- example -->\n```\n\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>' \
"$BASE" "$GOOD_HEAD"
git -C "${FIXTURES}" commit --allow-empty -q -m "unwatermarked change"
BAD_HEAD=$(git -C "${FIXTURES}" rev-parse HEAD)