修复EPUB格式

fix Mimetype file entry is missing or is not the first file in the archive.
ltcszk · Apr 28, 2023 · cddc65e · cddc65e
1 parent 573f55a
commit cddc65e
Showing 1 changed file with 25 additions and 23 deletions.
diff --git a/src/save/epub.ts b/src/save/epub.ts
@@ -226,6 +226,7 @@ export class EPUB extends Options {
 
   public constructor(book: Book, streamZip: boolean, options?: SaveOptions) {
     super();
+    const self = this;
     this.book = book;
     this.chapters = this.book.chapters;
 
@@ -236,9 +237,33 @@ export class EPUB extends Options {
       "application/epub+zip"
     );
 
+    log.debug("[save-epub]保存epub基本文件");
+    saveEpubMimetype();
+
     if (options) {
       Object.assign(this, options);
     }
+
+    async function saveEpubMimetype() {
+      // mimetype
+      await self.epubZip.file(
+        "mimetype",
+        new Blob(["application/epub+zip"]),
+        true
+      );
+      // container.xml
+      await self.epubZip.file(
+        "META-INF/container.xml",
+        new Blob([
+          `<?xml version="1.0" encoding="UTF-8"?>
+<container version="1.0" xmlns="urn:oasis:names:tc:opendocument:xmlns:container">
+    <rootfiles>
+        <rootfile full-path="OEBPS/content.opf" media-type="application/oebps-package+xml"/>
+    </rootfiles>
+</container>`,
+        ])
+      );
+    }
   }
 
   private static genChapterHtmlFile(chapterObj: Chapter) {
@@ -269,8 +294,6 @@ export class EPUB extends Options {
   public async saveEpub() {
     const self = this;
 
-    log.debug("[save-epub]保存epub基本文件");
-    await saveEpubMimetype();
     log.debug("[save-epub]保存样式文件");
     await saveStyle();
     log.debug("[save-epub]更新Metadata");
@@ -290,27 +313,6 @@ export class EPUB extends Options {
 
     await this.epubZip.generateAsync();
 
-    async function saveEpubMimetype() {
-      // mimetype
-      await self.epubZip.file(
-        "mimetype",
-        new Blob(["application/epub+zip"]),
-        true
-      );
-      // container.xml
-      await self.epubZip.file(
-        "META-INF/container.xml",
-        new Blob([
-          `<?xml version="1.0" encoding="UTF-8"?>
-<container version="1.0" xmlns="urn:oasis:names:tc:opendocument:xmlns:container">
-    <rootfiles>
-        <rootfile full-path="OEBPS/content.opf" media-type="application/oebps-package+xml"/>
-    </rootfiles>
-</container>`,
-        ])
-      );
-    }
-
     async function saveStyle() {
       await self.epubZip.file(
         "OEBPS/style.css",