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

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architect merged 12 commits from architect/bug-yhg8dqypwmar/reject-hidden-provenance into main 2026-08-27 17:53:56 +00:00
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+22 -7
3 changed files with 22 additions and 7 deletions
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check.sh
+14 -6
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13
 @@ -42,7 +42,8 @@ elif ! RENDERED_BODY=$(printf '%s' "${BODY}" |
fi fi
# A collapsed disclosure is valid supporting content, but provenance inside one # A collapsed disclosure is valid supporting content, but provenance inside one
# is not visible by default. Remove details subtrees before locating sections. # is not visible by default. Remove only collapsed details subtrees; an open
# disclosure remains visible unless one of its ancestors is collapsed.
VISIBLE_BODY=$(printf '%s\n' "${RENDERED_BODY}" | VISIBLE_BODY=$(printf '%s\n' "${RENDERED_BODY}" |
awk ' awk '
{ {
@@ -53,11 +54,18 @@ VISIBLE_BODY=$(printf '%s\n' "${RENDERED_BODY}" |
tag=tag char tag=tag char
if (char == ">") { if (char == ">") {
ux commented 2026-08-27 17:00:33 +00:00
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Blocker: this treats each backslash-escaped backtick around <!-- as a code-span delimiter. Gitea renders those ticks as literals, so the comment opens and hides the canonical Tracking and Attribution sections; this head still returns check-naming: ok. Ignore escaped ticks here and add the exact regression.

Blocker: this treats each backslash-escaped backtick around `<!--` as a code-span delimiter. Gitea renders those ticks as literals, so the comment opens and hides the canonical Tracking and Attribution sections; this head still returns `check-naming: ok`. Ignore escaped ticks here and add the exact regression.
lower=tolower(tag) lower=tolower(tag)
ux commented 2026-08-27 17:41:21 +00:00
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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.
if (lower ~ /^<details([[:space:]>])/) details_depth++ if (lower ~ /^<details([[:space:]>])/) {
else if (lower ~ /^<\/details([[:space:]>])/) { parent_hidden=(details_depth > 0 && hidden[details_depth])
if (details_depth > 0) details_depth-- details_depth++
perf commented 2026-08-27 17:04:31 +00:00
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This walks backward over the full preceding backslash run at every character. An 8,192-byte line measured 14.641 s here versus 20.981 ms on 8a1d71c; 1/2/4/8 KiB measured 224/932/3,643/14,641 ms, confirming O(N²). Maintain escape parity in the forward scan.

This walks backward over the full preceding backslash run at every character. An 8,192-byte line measured 14.641 s here versus 20.981 ms on `8a1d71c`; 1/2/4/8 KiB measured 224/932/3,643/14,641 ms, confirming O(N²). Maintain escape parity in the forward scan.
hidden[details_depth]=(parent_hidden || lower !~ /[[:space:]]open([[:space:]=>]|$)/)
security commented 2026-08-27 17:45:58 +00:00
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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.
dev commented 2026-08-27 17:46:50 +00:00
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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.
ops commented 2026-08-27 17:47:14 +00:00
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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.
} }
ux commented 2026-08-27 16:56:26 +00:00
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You put an unmatched one-backtick run before <!-- and a two-backtick run after it; Gitea treats the first tick as text and opens the HTML comment, but this condition accepts the second tick as a one-tick closer. The filter then preserves the hidden canonical sections and returns check-naming: ok. Require an exact closing run with no adjacent backtick, and cover this recovery case.

You put an unmatched one-backtick run before `<!--` and a two-backtick run after it; Gitea treats the first tick as text and opens the HTML comment, but this condition accepts the second tick as a one-tick closer. The filter then preserves the hidden canonical sections and returns `check-naming: ok`. Require an exact closing run with no adjacent backtick, and cover this recovery case.
else if (details_depth == 0) printf "%s", tag else if (lower ~ /^<\/details([[:space:]>])/) {
ops commented 2026-08-27 16:55:27 +00:00
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close_pos can advance into the middle of a longer backtick run, so a one-backtick opener falsely closes on the second character of a two-backtick run. On this exact head, a first line containing one backtick, <!--, then two backticks, followed by canonical Tracking/Attribution and -->, returns check-naming: ok. CommonMark leaves the unequal tick runs unmatched, so <!-- opens an HTML comment and Gitea hides both sections. Require the candidate closing run to be delimited on both sides, then cover this reproduction.

`close_pos` can advance into the middle of a longer backtick run, so a one-backtick opener falsely closes on the second character of a two-backtick run. On this exact head, a first line containing one backtick, `<!--`, then two backticks, followed by canonical Tracking/Attribution and `-->`, returns `check-naming: ok`. CommonMark leaves the unequal tick runs unmatched, so `<!--` opens an HTML comment and Gitea hides both sections. Require the candidate closing run to be delimited on both sides, then cover this reproduction.
if (details_depth > 0) {
delete hidden[details_depth]
details_depth--
}
}
else if (!hidden[details_depth]) printf "%s", tag
in_tag=0 in_tag=0
tag="" tag=""
} }
@@ -66,7 +74,7 @@ VISIBLE_BODY=$(printf '%s\n' "${RENDERED_BODY}" |
in_tag=1 in_tag=1
tag=char tag=char
} }
else if (details_depth == 0) printf "%s", char else if (!hidden[details_depth]) printf "%s", char
} }
} }
') ')
1
tests/bin/curl
+2 -1
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@@ -62,7 +62,8 @@ printf '%s\n' "${PR_BODY}" | awk '
next next
} }
if (lower ~ /^[ ]{0,3}<details([[:blank:]>])/) { if (lower ~ /^[ ]{0,3}<details([[:blank:]>])/) {
print "<details>" if (lower ~ /[[:blank:]]open([[:blank:]=>]|$)/) print "<details open=\"\">"
else print "<details>"
next next
} }
if (line ~ /^## Tracking[[:space:]]*$/) print "<h2>Tracking</h2>" if (line ~ /^## Tracking[[:space:]]*$/) print "<h2>Tracking</h2>"
tests/run
+6
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@@ -179,6 +179,12 @@ check_contract_pass "fenced code examples remain available" \
check_contract "details cannot collapse provenance" \ check_contract "details cannot collapse provenance" \
$'<details><summary>Release notes</summary>\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>\n</details>' \ $'<details><summary>Release notes</summary>\n\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n</details>' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section" "$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract_pass "open details preserve visible provenance" \
$'<details open><summary>Release notes</summary>\n\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n</details>' \
"$BASE" "$GOOD_HEAD"
check_contract "open details inside collapsed details remain hidden" \
$'<details><summary>Release notes</summary>\n<details open><summary>Visible only after expansion</summary>\n\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n</details>\n</details>' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract_pass "unrelated collapsed details remain available" \ check_contract_pass "unrelated collapsed details remain available" \
$'<details><summary>Logs</summary>\n\nSupporting output\n</details>\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>' \ $'<details><summary>Logs</summary>\n\nSupporting output\n</details>\n\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>' \
"$BASE" "$GOOD_HEAD" "$BASE" "$GOOD_HEAD"