feat: add ebook MIME types, fix azw3/mobi detection collision, trust undetectable ebook formats

2026-07-31 13:25:46 +02:00
parent 534630ab4e
commit 977dac35d9
2 changed files with 99 additions and 1 deletions
@@ -22,6 +22,15 @@ const OUTPUT_MIME_TYPES = {
  ttf: 'font/ttf',
  otf: 'font/otf',
  woff: 'font/woff',
+  epub: 'application/epub+zip',
+  fb2: 'application/x-fictionbook+xml',
+  lrf: 'application/octet-stream',
+  mobi: 'application/x-mobipocket-ebook',
+  pdb: 'application/vnd.palm',
+  rb: 'application/octet-stream',
+  snb: 'application/octet-stream',
+  tcr: 'application/octet-stream',
+  azw3: 'application/vnd.amazon.ebook',
 };

 export async function detectInputMime(filePath) {
@@ -44,9 +53,19 @@ const UNDETECTABLE_TEXT_FORMATS = {
  csv: 'text/csv',
 };

+const UNDETECTABLE_EBOOK_FORMATS = {
+  fb2: 'application/x-fictionbook+xml',
+  lrf: 'application/octet-stream',
+  pdb: 'application/vnd.palm',
+  rb: 'application/octet-stream',
+  snb: 'application/octet-stream',
+  tcr: 'application/octet-stream',
+};
+
 function normalizeFormat(format) {
  if (format === 'jpg') return 'jpeg';
  if (format === 'heif') return 'heic';
+  if (format === 'azw3') return 'mobi';
  return format;
 }

@@ -61,7 +80,7 @@ export async function resolveInputFormat(filePath, declaredFormat) {
  const detected = await detectInputMime(filePath);

  if (!detected) {
-    const fallbackMime = UNDETECTABLE_TEXT_FORMATS[declaredFormat];
+    const fallbackMime = UNDETECTABLE_TEXT_FORMATS[declaredFormat] ?? UNDETECTABLE_EBOOK_FORMATS[declaredFormat];
    if (fallbackMime) {
      return { mime: fallbackMime, valid: true };
    }