Add page data delivery and publication guards

2026-07-08 21:10:47 +08:00
parent 8d629e7a4e
commit eea14c1855
66 changed files with 3035 additions and 413 deletions
@@ -0,0 +1,30 @@
+/**
+ * Insert markup before the document's closing </body> or </head>, ignoring
+ * occurrences inside inline scripts, styles, or string literals.
+ */
+
+function maskHtmlLiteralRegions(html) {
+  return String(html ?? '').replace(/<script\b[^>]*>[\s\S]*?<\/script>/gi, (match) =>
+    ' '.repeat(match.length),
+  ).replace(/<style\b[^>]*>[\s\S]*?<\/style>/gi, (match) => ' '.repeat(match.length));
+}
+
+export function injectBeforeDocumentClosingBody(html, markup) {
+  const source = String(html ?? '');
+  const injection = String(markup ?? '');
+  if (!injection) return source;
+  const masked = maskHtmlLiteralRegions(source).toLowerCase();
+  const lastIndex = masked.lastIndexOf('</body>');
+  if (lastIndex < 0) return `${source}${injection}`;
+  return `${source.slice(0, lastIndex)}${injection}${source.slice(lastIndex)}`;
+}
+
+export function injectBeforeDocumentClosingHead(html, markup) {
+  const source = String(html ?? '');
+  const injection = String(markup ?? '');
+  if (!injection) return source;
+  const masked = maskHtmlLiteralRegions(source).toLowerCase();
+  const index = masked.indexOf('</head>');
+  if (index < 0) return `${injection}${source}`;
+  return `${source.slice(0, index)}${injection}${source.slice(index)}`;
+}