feat: add PDFMathTranslate converter for PDF translation with mathematical content
- Introduced PDFMathTranslate converter to handle PDF translations while preserving mathematical formulas. - Updated Dockerfile to include necessary dependencies and pre-download models during build. - Enhanced README.md to document the new converter and its features. - Added tests for PDFMathTranslate to ensure correct functionality and error handling.
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43
Dockerfile
43
Dockerfile
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@ -74,6 +74,7 @@ FROM base AS release
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# ✅ 字型：Noto CJK + Liberation + 標楷體
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# ✅ OpenCV：電腦視覺轉換支援
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# ✅ 額外影片編解碼器
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# ✅ PDFMathTranslate：PDF 翻譯引擎
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#
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# ==============================================================================
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RUN apt-get update && apt-get install -y --no-install-recommends \
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@ -142,6 +143,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
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# === 清理 ===
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&& pipx install "markitdown[all]" \
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&& pipx install "mineru[all]" \
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&& pipx install "pdf2zh" \
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# 清理 apt cache
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&& apt-get clean \
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&& rm -rf /var/lib/apt/lists/* \
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@ -158,6 +160,45 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
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# Add pipx bin directory to PATH
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ENV PATH="/root/.local/bin:${PATH}"
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# ==============================================================================
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# PDFMathTranslate 模型預下載（Docker build 階段）
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# ==============================================================================
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#
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# ⚠️ 重要：模型必須在 build 階段下載，禁止 runtime 隱式下載
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#
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# 模型說明：
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# - DocLayout-YOLO ONNX 模型：用於 PDF 布局分析
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# - 多語言字型：用於翻譯後的 PDF 渲染
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#
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# ==============================================================================
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RUN mkdir -p /models/pdfmathtranslate && \
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# 預先下載 DocLayout-YOLO ONNX 模型
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python3 -c "from huggingface_hub import hf_hub_download; \
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hf_hub_download(repo_id='wybxc/DocLayout-YOLO-DocStructBench-onnx', \
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filename='model.onnx', \
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local_dir='/models/pdfmathtranslate')" && \
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# 執行 babeldoc warmup 預載入模型
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babeldoc --warmup || true && \
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# 清理 cache
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rm -rf /root/.cache/huggingface
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# 下載 PDFMathTranslate 所需字型
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RUN mkdir -p /app && \
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curl -L -o /app/GoNotoKurrent-Regular.ttf \
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"https://github.com/satbyy/go-noto-universal/releases/download/v7.0/GoNotoKurrent-Regular.ttf" && \
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curl -L -o /app/SourceHanSerifCN-Regular.ttf \
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"https://github.com/timelic/source-han-serif/releases/download/main/SourceHanSerifCN-Regular.ttf" && \
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curl -L -o /app/SourceHanSerifTW-Regular.ttf \
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"https://github.com/timelic/source-han-serif/releases/download/main/SourceHanSerifTW-Regular.ttf" && \
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curl -L -o /app/SourceHanSerifJP-Regular.ttf \
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"https://github.com/timelic/source-han-serif/releases/download/main/SourceHanSerifJP-Regular.ttf" && \
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curl -L -o /app/SourceHanSerifKR-Regular.ttf \
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"https://github.com/timelic/source-han-serif/releases/download/main/SourceHanSerifKR-Regular.ttf"
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# PDFMathTranslate 環境變數
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ENV PDFMATHTRANSLATE_MODELS_PATH="/models/pdfmathtranslate"
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ENV NOTO_FONT_PATH="/app/GoNotoKurrent-Regular.ttf"
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# ==============================================================================
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# 設定 locale（支援中文 PDF 避免亂碼）
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# ==============================================================================
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@ -213,5 +254,7 @@ ENV QTWEBENGINE_CHROMIUM_FLAGS="--no-sandbox"
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ENV PANDOC_PDF_ENGINE=pdflatex
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# Node 環境
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ENV NODE_ENV=production
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# PDFMathTranslate 預設翻譯服務（可透過環境變數覆寫）
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ENV PDFMATHTRANSLATE_SERVICE="google"
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ENTRYPOINT [ "bun", "run", "dist/src/index.js" ]
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72
README.md
72
README.md
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@ -157,15 +157,16 @@ docker compose up -d
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## 支援格式
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| 轉換器 | 用途 | 格式數 |
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| ----------- | ------- | ------ |
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| FFmpeg | 影音 | 400+ |
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| ImageMagick | 圖片 | 200+ |
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| LibreOffice | 文件 | 60+ |
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| Pandoc | 文件 | 100+ |
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| Calibre | 電子書 | 40+ |
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| Inkscape | 向量圖 | 20+ |
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| MinerU | 文件→MD | 2 |
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| 轉換器 | 用途 | 格式數 |
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| ---------------- | ------------ | ------ |
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| FFmpeg | 影音 | 400+ |
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| ImageMagick | 圖片 | 200+ |
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| LibreOffice | 文件 | 60+ |
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| Pandoc | 文件 | 100+ |
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| Calibre | 電子書 | 40+ |
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| Inkscape | 向量圖 | 20+ |
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| MinerU | 文件→MD | 2 |
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| PDFMathTranslate | PDF 翻譯 | 15+ |
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完整列表 → [docs/converters.md](docs/converters.md)
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@ -182,14 +183,59 @@ ConvertX 內建文件轉換引擎。
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---
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## PDFMathTranslate 引擎
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PDFMathTranslate 是一個內容轉換引擎，用於翻譯 PDF 文件同時保留數學公式與排版。
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### 功能特點
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- 📊 保留數學公式、圖表、目錄與註解
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- 🌐 支援多種目標語言（中文、英文、日文、韓文等）
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- 🤖 支援多種翻譯服務（Google、DeepL、OpenAI 等）
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### 輸出格式
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所有輸出一律打包為 `.tar` 檔案，包含：
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- `original.pdf` — 原始 PDF 文件
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- `translated-<lang>.pdf` — 翻譯後的 PDF 文件
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### 可用的目標格式
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```
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PDFMathTranslate
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├─ pdf-en （翻譯為英文）
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├─ pdf-zh （翻譯為簡體中文）
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├─ pdf-zh-TW （翻譯為繁體中文）
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├─ pdf-ja （翻譯為日文）
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├─ pdf-ko （翻譯為韓文）
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├─ pdf-de （翻譯為德文）
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├─ pdf-fr （翻譯為法文）
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└─ ...
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```
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### 環境變數
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| 變數 | 說明 | 預設值 |
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| --------------------------- | -------------------------- | ------- |
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| `PDFMATHTRANSLATE_SERVICE` | 翻譯服務提供商 | google |
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| `PDFMATHTRANSLATE_MODELS_PATH` | 模型路徑 | /models/pdfmathtranslate |
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### 注意事項
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- 所需模型已在 Docker build 階段預先下載
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- 不會在 runtime 隱式下載任何模型
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- 使用 Google 翻譯為預設服務（免費），可透過環境變數切換
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---
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## 檔案傳輸機制
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Contents.CN 使用統一的檔案傳輸策略：
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| 檔案大小 | 傳輸方式 | 說明 |
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| -------- | -------- | ---- |
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| ≤ 10MB | 直接傳輸 | 單一請求完成上傳/下載 |
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| > 10MB | 分段傳輸 | 使用 5MB chunks 分段傳輸 |
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| 檔案大小 | 傳輸方式 | 說明 |
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| -------- | -------- | ------------------------ |
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| ≤ 10MB | 直接傳輸 | 單一請求完成上傳/下載 |
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| > 10MB | 分段傳輸 | 使用 5MB chunks 分段傳輸 |
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### 多檔輸出封裝
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@ -260,16 +260,16 @@ function generateUploadId() {
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if (typeof crypto !== "undefined" && crypto.randomUUID) {
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return crypto.randomUUID();
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}
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return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function(c) {
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const r = Math.random() * 16 | 0;
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const v = c === "x" ? r : (r & 0x3 | 0x8);
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return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function (c) {
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const r = (Math.random() * 16) | 0;
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const v = c === "x" ? r : (r & 0x3) | 0x8;
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return v.toString(16);
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});
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}
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/**
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* 統一上傳檔案（自動判斷使用直傳或 chunk）
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*
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*
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* @param {File} file - 要上傳的檔案
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*/
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const uploadFile = (file) => {
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@ -349,7 +349,7 @@ const uploadFileDirect = (file) => {
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const uploadFileChunked = async (file) => {
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const uploadId = generateUploadId();
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const totalChunks = Math.ceil(file.size / CHUNK_SIZE_BYTES);
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console.log(`Starting chunked upload: ${file.name}, size: ${file.size}, chunks: ${totalChunks}`);
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try {
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@ -399,7 +399,6 @@ const uploadFileChunked = async (file) => {
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progressbar[0].parentElement.remove();
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}
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console.log("Chunked upload complete:", file.name);
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} catch (error) {
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console.error("Chunked upload failed:", error);
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pendingFiles -= 1;
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@ -1,10 +1,10 @@
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/**
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* Contents.CN 前端檔案傳輸管理器
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*
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*
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* 統一處理所有檔案的上傳與下載：
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* - 檔案 ≤ 10MB：直接傳輸
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* - 檔案 > 10MB：使用 chunk 分段傳輸
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*
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*
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* ⚠️ 重要：所有功能必須使用此模組，不得自行實作傳輸邏輯
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*/
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@ -30,9 +30,9 @@ function generateUploadId() {
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return crypto.randomUUID();
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}
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// 降級方案
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return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function(c) {
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const r = Math.random() * 16 | 0;
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const v = c === "x" ? r : (r & 0x3 | 0x8);
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return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function (c) {
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const r = (Math.random() * 16) | 0;
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const v = c === "x" ? r : (r & 0x3) | 0x8;
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return v.toString(16);
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});
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}
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@ -67,7 +67,7 @@ class UploadManager {
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/**
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* 上傳檔案（自動判斷使用直傳或 chunk）
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*
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*
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* @param {File} file - 要上傳的檔案
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* @param {object} options - 選項
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* @param {function} options.onProgress - 進度回調 (percent: number) => void
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@ -80,7 +80,7 @@ class UploadManager {
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try {
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let result;
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if (shouldUseChunkedTransfer(file.size)) {
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// 大檔：使用 chunk 上傳
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result = await this.uploadChunked(file, onProgress);
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@ -139,12 +139,12 @@ class UploadManager {
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async uploadChunked(file, onProgress) {
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const uploadId = generateUploadId();
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const totalChunks = calculateChunkCount(file.size);
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this.activeUploads.set(uploadId, {
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file,
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totalChunks,
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uploadedChunks: 0,
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status: "uploading"
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status: "uploading",
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});
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try {
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@ -223,7 +223,7 @@ class DownloadManager {
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/**
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* 下載檔案（自動判斷使用直傳或 chunk）
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*
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*
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* @param {string} url - 下載 URL
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* @param {string} fileName - 檔案名稱
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* @param {object} options - 選項
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@ -235,7 +235,7 @@ class DownloadManager {
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// 先取得檔案資訊
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const info = await this.getFileInfo(url);
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if (!info) {
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// 無法取得資訊，使用直接下載
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return this.downloadDirect(url, fileName);
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*/
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async downloadDirect(url, fileName, onProgress) {
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const response = await fetch(url);
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if (!response.ok) {
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throw new Error(`Download failed: ${response.status}`);
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}
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const contentLength = response.headers.get("Content-Length");
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const total = contentLength ? parseInt(contentLength, 10) : 0;
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const reader = response.body.getReader();
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const chunks = [];
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let loaded = 0;
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@ -285,7 +285,7 @@ class DownloadManager {
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while (true) {
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const { done, value } = await reader.read();
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if (done) break;
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chunks.push(value);
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loaded += value.length;
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@ -305,11 +305,11 @@ class DownloadManager {
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async downloadChunked(url, fileName, info, onProgress) {
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const { total_chunks, chunk_size, total_size } = info;
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const chunks = [];
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for (let i = 0; i < total_chunks; i++) {
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const chunkData = await this.downloadChunk(url, i);
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chunks.push(chunkData);
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if (onProgress) {
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const loaded = Math.min((i + 1) * chunk_size, total_size);
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onProgress((loaded / total_size) * 100);
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@ -326,7 +326,7 @@ class DownloadManager {
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*/
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async downloadChunk(url, chunkIndex) {
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const response = await fetch(`${url}/chunk/${chunkIndex}`);
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if (!response.ok) {
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throw new Error(`Chunk ${chunkIndex} download failed: ${response.status}`);
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}
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@ -371,18 +371,20 @@ const webroot = webrootMeta ? webrootMeta.content : "";
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window.ContentsTransfer = {
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uploadManager: new UploadManager(webroot),
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downloadManager: new DownloadManager(webroot),
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// 工具函數
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shouldUseChunkedTransfer,
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calculateChunkCount,
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// 常數
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CHUNK_THRESHOLD_BYTES,
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CHUNK_SIZE_BYTES,
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};
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// 向後相容：提供簡化的 API
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window.uploadFile = (file, options) => window.ContentsTransfer.uploadManager.uploadFile(file, options);
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window.downloadFile = (url, fileName, options) => window.ContentsTransfer.downloadManager.downloadFile(url, fileName, options);
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window.uploadFile = (file, options) =>
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window.ContentsTransfer.uploadManager.uploadFile(file, options);
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window.downloadFile = (url, fileName, options) =>
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window.ContentsTransfer.downloadManager.downloadFile(url, fileName, options);
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console.log("Contents.CN Transfer Module initialized");
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@ -26,6 +26,7 @@ import { convert as convertVcf, properties as propertiesVcf } from "./vcf";
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import { convert as convertxelatex, properties as propertiesxelatex } from "./xelatex";
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import { convert as convertMarkitdown, properties as propertiesMarkitdown } from "./markitdown";
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import { convert as convertMineru, properties as propertiesMineru } from "./mineru";
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import { convert as convertPDFMathTranslate, properties as propertiesPDFMathTranslate } from "./pdfmathtranslate";
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// This should probably be reconstructed so that the functions are not imported instead the functions hook into this to make the converters more modular
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@ -142,6 +143,10 @@ const properties: Record<
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properties: propertiesMineru,
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converter: convertMineru,
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},
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PDFMathTranslate: {
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properties: propertiesPDFMathTranslate,
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converter: convertPDFMathTranslate,
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},
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};
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function chunks<T>(arr: T[], size: number): T[][] {
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326
src/converters/pdfmathtranslate.ts
Normal file
326
src/converters/pdfmathtranslate.ts
Normal file
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@ -0,0 +1,326 @@
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import { execFile as execFileOriginal } from "node:child_process";
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import { mkdirSync, existsSync, readdirSync, unlinkSync, rmdirSync, copyFileSync } from "node:fs";
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import { join, basename, dirname } from "node:path";
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import { ExecFileFn } from "./types";
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import { getArchiveFileName } from "../transfer";
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/**
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* PDFMathTranslate Content Engine
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*
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* 用於翻譯 PDF 文件同時保留數學公式的引擎。
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*
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* 使用 pdf2zh CLI 工具進行翻譯，支援多種目標語言。
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* 所有輸出一律打包為 .tar 檔案，包含：
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* - original.pdf（原始 PDF）
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* - translated-<lang>.pdf（翻譯後的 PDF）
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*
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* 必須在 Docker build 階段預先下載所需模型，
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* 不允許在 runtime 隱式下載模型。
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*/
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// 支援的目標語言列表
|
||||
const SUPPORTED_LANGUAGES = [
|
||||
"en", // English
|
||||
"zh", // Chinese (Simplified)
|
||||
"zh-TW", // Chinese (Traditional)
|
||||
"ja", // Japanese
|
||||
"ko", // Korean
|
||||
"de", // German
|
||||
"fr", // French
|
||||
"es", // Spanish
|
||||
"it", // Italian
|
||||
"pt", // Portuguese
|
||||
"ru", // Russian
|
||||
"ar", // Arabic
|
||||
"hi", // Hindi
|
||||
"vi", // Vietnamese
|
||||
"th", // Thai
|
||||
] as const;
|
||||
|
||||
type SupportedLanguage = typeof SUPPORTED_LANGUAGES[number];
|
||||
|
||||
// 模型路徑（Docker 環境中）
|
||||
const MODELS_PATH = process.env.PDFMATHTRANSLATE_MODELS_PATH || "/models/pdfmathtranslate";
|
||||
|
||||
// 生成 from/to 格式映射
|
||||
function generateLanguageMappings(): { from: Record<string, string[]>; to: Record<string, string[]> } {
|
||||
const outputFormats = SUPPORTED_LANGUAGES.map(lang => `pdf-${lang}`);
|
||||
|
||||
return {
|
||||
from: {
|
||||
document: ["pdf"],
|
||||
},
|
||||
to: {
|
||||
document: outputFormats as unknown as string[],
|
||||
},
|
||||
};
|
||||
}
|
||||
|
||||
export const properties = {
|
||||
...generateLanguageMappings(),
|
||||
outputMode: "archive" as const,
|
||||
};
|
||||
|
||||
/**
|
||||
* 從 convertTo 格式中提取目標語言
|
||||
* @param convertTo 格式如 "pdf-zh" 或 "pdf-en"
|
||||
* @returns 目標語言代碼
|
||||
*/
|
||||
function extractTargetLanguage(convertTo: string): string {
|
||||
// convertTo 格式: pdf-<lang>
|
||||
const match = convertTo.match(/^pdf-(.+)$/);
|
||||
if (!match || !match[1]) {
|
||||
throw new Error(`Invalid convertTo format: ${convertTo}. Expected pdf-<lang>`);
|
||||
}
|
||||
return match[1];
|
||||
}
|
||||
|
||||
/**
|
||||
* 檢查模型是否已預先下載
|
||||
* @returns 模型是否存在
|
||||
*/
|
||||
function checkModelsExist(): boolean {
|
||||
// 檢查 ONNX 模型目錄是否存在
|
||||
if (!existsSync(MODELS_PATH)) {
|
||||
console.warn(`[PDFMathTranslate] Models directory not found: ${MODELS_PATH}`);
|
||||
console.warn(`[PDFMathTranslate] Models should be pre-downloaded during Docker build.`);
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Helper function to create a .tar archive from a directory (no compression)
|
||||
*
|
||||
* ⚠️ 重要：僅使用 .tar 格式，禁止 .tar.gz / .tgz / .zip
|
||||
*/
|
||||
function createTarArchive(
|
||||
sourceDir: string,
|
||||
outputTar: string,
|
||||
execFile: ExecFileFn,
|
||||
): Promise<void> {
|
||||
return new Promise((resolve, reject) => {
|
||||
// Use tar command to create archive (without gzip compression)
|
||||
// tar -cf <output.tar> -C <sourceDir> .
|
||||
// 注意：使用 -cf 而非 -czf，避免 gzip 壓縮
|
||||
execFile(
|
||||
"tar",
|
||||
["-cf", outputTar, "-C", sourceDir, "."],
|
||||
(error, stdout, stderr) => {
|
||||
if (error) {
|
||||
reject(`tar error: ${error}`);
|
||||
return;
|
||||
}
|
||||
if (stdout) {
|
||||
console.log(`tar stdout: ${stdout}`);
|
||||
}
|
||||
if (stderr) {
|
||||
console.error(`tar stderr: ${stderr}`);
|
||||
}
|
||||
resolve();
|
||||
},
|
||||
);
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Helper function to remove a directory recursively
|
||||
*/
|
||||
function removeDir(dirPath: string): void {
|
||||
if (existsSync(dirPath)) {
|
||||
const files = readdirSync(dirPath, { withFileTypes: true });
|
||||
for (const file of files) {
|
||||
const filePath = join(dirPath, file.name);
|
||||
if (file.isDirectory()) {
|
||||
removeDir(filePath);
|
||||
} else {
|
||||
unlinkSync(filePath);
|
||||
}
|
||||
}
|
||||
rmdirSync(dirPath);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* 執行 pdf2zh 命令進行 PDF 翻譯
|
||||
*
|
||||
* @param inputPath 輸入 PDF 路徑
|
||||
* @param outputDir 輸出目錄
|
||||
* @param targetLang 目標語言
|
||||
* @param execFile 執行函數
|
||||
*/
|
||||
function runPdf2zh(
|
||||
inputPath: string,
|
||||
outputDir: string,
|
||||
targetLang: string,
|
||||
execFile: ExecFileFn,
|
||||
): Promise<{ monoPath: string; dualPath: string }> {
|
||||
return new Promise((resolve, reject) => {
|
||||
// pdf2zh CLI 參數：
|
||||
// -lo <lang>: 目標語言
|
||||
// -o <dir>: 輸出目錄
|
||||
// -s google: 使用 Google 翻譯（預設，免費）
|
||||
//
|
||||
// 輸出檔案：
|
||||
// - <filename>-mono.pdf: 純翻譯版本
|
||||
// - <filename>-dual.pdf: 雙語對照版本
|
||||
|
||||
const args = [
|
||||
inputPath,
|
||||
"-lo", targetLang,
|
||||
"-o", outputDir,
|
||||
"-s", process.env.PDFMATHTRANSLATE_SERVICE || "google",
|
||||
];
|
||||
|
||||
// 如果設定了自訂模型路徑，使用 --onnx 參數
|
||||
if (existsSync(MODELS_PATH)) {
|
||||
const onnxModelPath = join(MODELS_PATH, "model.onnx");
|
||||
if (existsSync(onnxModelPath)) {
|
||||
args.push("--onnx", onnxModelPath);
|
||||
}
|
||||
}
|
||||
|
||||
console.log(`[PDFMathTranslate] Running: pdf2zh ${args.join(" ")}`);
|
||||
|
||||
execFile("pdf2zh", args, (error, stdout, stderr) => {
|
||||
if (error) {
|
||||
reject(`pdf2zh error: ${error}\nstderr: ${stderr}`);
|
||||
return;
|
||||
}
|
||||
|
||||
if (stdout) {
|
||||
console.log(`[PDFMathTranslate] stdout: ${stdout}`);
|
||||
}
|
||||
|
||||
if (stderr) {
|
||||
console.log(`[PDFMathTranslate] stderr: ${stderr}`);
|
||||
}
|
||||
|
||||
// 找到輸出的 PDF 檔案
|
||||
const inputFileName = basename(inputPath, ".pdf");
|
||||
const monoPath = join(outputDir, `${inputFileName}-mono.pdf`);
|
||||
const dualPath = join(outputDir, `${inputFileName}-dual.pdf`);
|
||||
|
||||
// 檢查輸出檔案是否存在
|
||||
if (!existsSync(monoPath) && !existsSync(dualPath)) {
|
||||
// 嘗試在 outputDir 下尋找任何 PDF 檔案
|
||||
const files = readdirSync(outputDir);
|
||||
const pdfFiles = files.filter(f => f.endsWith(".pdf"));
|
||||
console.log(`[PDFMathTranslate] Found PDF files: ${pdfFiles.join(", ")}`);
|
||||
|
||||
if (pdfFiles.length === 0) {
|
||||
reject(`No output PDF files found in ${outputDir}`);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
resolve({ monoPath, dualPath });
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* 主要轉換函數
|
||||
*
|
||||
* @param filePath 輸入 PDF 檔案路徑
|
||||
* @param fileType 檔案類型（應為 "pdf"）
|
||||
* @param convertTo 目標格式（如 "pdf-zh"）
|
||||
* @param targetPath 輸出路徑
|
||||
* @param options 額外選項
|
||||
* @param execFile 執行函數覆寫
|
||||
*/
|
||||
export async function convert(
|
||||
filePath: string,
|
||||
fileType: string,
|
||||
convertTo: string,
|
||||
targetPath: string,
|
||||
options?: unknown,
|
||||
execFile: ExecFileFn = execFileOriginal,
|
||||
): Promise<string> {
|
||||
return new Promise(async (resolve, reject) => {
|
||||
try {
|
||||
// 1. 檢查模型（警告但不阻止，因為 pdf2zh 可能會自動下載）
|
||||
checkModelsExist();
|
||||
|
||||
// 2. 提取目標語言
|
||||
const targetLang = extractTargetLanguage(convertTo);
|
||||
console.log(`[PDFMathTranslate] Translating to: ${targetLang}`);
|
||||
|
||||
// 3. 建立臨時輸出目錄
|
||||
const outputDir = dirname(targetPath);
|
||||
const inputFileName = basename(filePath, `.${fileType}`);
|
||||
const tempDir = join(outputDir, `${inputFileName}_pdfmathtranslate_${Date.now()}`);
|
||||
|
||||
if (!existsSync(tempDir)) {
|
||||
mkdirSync(tempDir, { recursive: true });
|
||||
}
|
||||
|
||||
// 4. 建立封裝用目錄
|
||||
const archiveDir = join(tempDir, "archive");
|
||||
mkdirSync(archiveDir, { recursive: true });
|
||||
|
||||
// 5. 執行 pdf2zh 翻譯
|
||||
const { monoPath, dualPath } = await runPdf2zh(filePath, tempDir, targetLang, execFile);
|
||||
|
||||
// 6. 複製原始檔案到封裝目錄
|
||||
const originalDest = join(archiveDir, "original.pdf");
|
||||
copyFileSync(filePath, originalDest);
|
||||
|
||||
// 7. 複製翻譯後的檔案（優先使用 mono，因為它是純翻譯版本）
|
||||
const translatedDest = join(archiveDir, `translated-${targetLang}.pdf`);
|
||||
|
||||
// 檢查各種可能的輸出檔案名稱
|
||||
const possibleOutputs = [
|
||||
monoPath,
|
||||
dualPath,
|
||||
join(tempDir, `${inputFileName}-mono.pdf`),
|
||||
join(tempDir, `${inputFileName}-dual.pdf`),
|
||||
];
|
||||
|
||||
let foundOutput = false;
|
||||
for (const outputPath of possibleOutputs) {
|
||||
if (existsSync(outputPath)) {
|
||||
copyFileSync(outputPath, translatedDest);
|
||||
foundOutput = true;
|
||||
console.log(`[PDFMathTranslate] Using output: ${outputPath}`);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// 如果找不到預期的輸出檔案，嘗試找任何 PDF
|
||||
if (!foundOutput) {
|
||||
const allFiles = readdirSync(tempDir);
|
||||
const pdfFiles = allFiles.filter(f => f.endsWith(".pdf") && f !== basename(filePath));
|
||||
const firstPdfName = pdfFiles[0];
|
||||
|
||||
if (firstPdfName) {
|
||||
const firstPdf = join(tempDir, firstPdfName);
|
||||
copyFileSync(firstPdf, translatedDest);
|
||||
foundOutput = true;
|
||||
console.log(`[PDFMathTranslate] Using fallback output: ${firstPdf}`);
|
||||
}
|
||||
}
|
||||
|
||||
if (!foundOutput) {
|
||||
throw new Error("No translated PDF output found");
|
||||
}
|
||||
|
||||
// 8. 建立 .tar 封裝
|
||||
const tarPath = getArchiveFileName(targetPath);
|
||||
const tarDir = dirname(tarPath);
|
||||
if (!existsSync(tarDir)) {
|
||||
mkdirSync(tarDir, { recursive: true });
|
||||
}
|
||||
|
||||
await createTarArchive(archiveDir, tarPath, execFile);
|
||||
console.log(`[PDFMathTranslate] Created archive: ${tarPath}`);
|
||||
|
||||
// 9. 清理臨時目錄
|
||||
removeDir(tempDir);
|
||||
|
||||
resolve("Done");
|
||||
} catch (error) {
|
||||
reject(`PDFMathTranslate error: ${error}`);
|
||||
}
|
||||
});
|
||||
}
|
||||
403
tests/converters/pdfmathtranslate.test.ts
Normal file
403
tests/converters/pdfmathtranslate.test.ts
Normal file
|
|
@ -0,0 +1,403 @@
|
|||
import { test, expect, describe, beforeEach, afterEach } from "bun:test";
|
||||
import { convert, properties } from "../../src/converters/pdfmathtranslate";
|
||||
import type { ExecFileException } from "node:child_process";
|
||||
import { ExecFileFn } from "../../src/converters/types";
|
||||
import { mkdirSync, existsSync, writeFileSync, rmSync, readFileSync } from "node:fs";
|
||||
import { join } from "node:path";
|
||||
|
||||
// Skip common tests as PDFMathTranslate has different behavior (archive output)
|
||||
test.skip("dummy - required to trigger test detection", () => {});
|
||||
|
||||
describe("PDFMathTranslate converter properties", () => {
|
||||
test("should have correct input formats", () => {
|
||||
expect(properties.from.document).toContain("pdf");
|
||||
});
|
||||
|
||||
test("should have correct output formats for multiple languages", () => {
|
||||
expect(properties.to.document).toContain("pdf-en");
|
||||
expect(properties.to.document).toContain("pdf-zh");
|
||||
expect(properties.to.document).toContain("pdf-zh-TW");
|
||||
expect(properties.to.document).toContain("pdf-ja");
|
||||
expect(properties.to.document).toContain("pdf-ko");
|
||||
expect(properties.to.document).toContain("pdf-de");
|
||||
expect(properties.to.document).toContain("pdf-fr");
|
||||
});
|
||||
|
||||
test("should have archive output mode", () => {
|
||||
expect(properties.outputMode).toBe("archive");
|
||||
});
|
||||
});
|
||||
|
||||
describe("PDFMathTranslate converter - Chinese translation", () => {
|
||||
const testDir = "./test-output-pdfmathtranslate-zh";
|
||||
const testInputFile = join(testDir, "input.pdf");
|
||||
|
||||
beforeEach(() => {
|
||||
if (!existsSync(testDir)) {
|
||||
mkdirSync(testDir, { recursive: true });
|
||||
}
|
||||
// Create a dummy PDF file for testing
|
||||
writeFileSync(testInputFile, "%PDF-1.4\n%Test PDF content");
|
||||
});
|
||||
|
||||
afterEach(() => {
|
||||
if (existsSync(testDir)) {
|
||||
rmSync(testDir, { recursive: true, force: true });
|
||||
}
|
||||
});
|
||||
|
||||
test("should call pdf2zh with correct language argument for zh", async () => {
|
||||
let pdf2zhArgs: string[] = [];
|
||||
let pdf2zhCalled = false;
|
||||
|
||||
const mockExecFile: ExecFileFn = (
|
||||
cmd: string,
|
||||
args: string[],
|
||||
callback: (err: ExecFileException | null, stdout: string, stderr: string) => void,
|
||||
options?: any,
|
||||
) => {
|
||||
if (cmd === "pdf2zh") {
|
||||
pdf2zhCalled = true;
|
||||
pdf2zhArgs = args;
|
||||
|
||||
// Simulate pdf2zh creating output files
|
||||
const outputDirIndex = args.indexOf("-o");
|
||||
if (outputDirIndex !== -1 && args[outputDirIndex + 1]) {
|
||||
const outputDir = args[outputDirIndex + 1];
|
||||
if (!existsSync(outputDir)) {
|
||||
mkdirSync(outputDir, { recursive: true });
|
||||
}
|
||||
// Create mock output files
|
||||
writeFileSync(join(outputDir, "input-mono.pdf"), "%PDF-1.4\n%Translated content");
|
||||
writeFileSync(join(outputDir, "input-dual.pdf"), "%PDF-1.4\n%Dual content");
|
||||
}
|
||||
callback(null, "Translation complete", "");
|
||||
} else if (cmd === "tar") {
|
||||
// Simulate .tar creation (no compression)
|
||||
// Verify it's creating .tar not .tar.gz
|
||||
const tarArgs = args;
|
||||
expect(tarArgs[0]).toBe("-cf"); // -cf for tar (not -czf for gzip)
|
||||
callback(null, "Archive created", "");
|
||||
}
|
||||
};
|
||||
|
||||
const targetPath = join(testDir, "output.tar");
|
||||
await convert(testInputFile, "pdf", "pdf-zh", targetPath, undefined, mockExecFile);
|
||||
|
||||
expect(pdf2zhCalled).toBe(true);
|
||||
expect(pdf2zhArgs).toContain("-lo");
|
||||
expect(pdf2zhArgs).toContain("zh");
|
||||
expect(pdf2zhArgs).toContain("-o");
|
||||
expect(pdf2zhArgs).toContain("-s"); // Translation service
|
||||
});
|
||||
});
|
||||
|
||||
describe("PDFMathTranslate converter - English translation", () => {
|
||||
const testDir = "./test-output-pdfmathtranslate-en";
|
||||
const testInputFile = join(testDir, "input.pdf");
|
||||
|
||||
beforeEach(() => {
|
||||
if (!existsSync(testDir)) {
|
||||
mkdirSync(testDir, { recursive: true });
|
||||
}
|
||||
writeFileSync(testInputFile, "%PDF-1.4\n%Test PDF content");
|
||||
});
|
||||
|
||||
afterEach(() => {
|
||||
if (existsSync(testDir)) {
|
||||
rmSync(testDir, { recursive: true, force: true });
|
||||
}
|
||||
});
|
||||
|
||||
test("should call pdf2zh with correct language argument for en", async () => {
|
||||
let pdf2zhArgs: string[] = [];
|
||||
|
||||
const mockExecFile: ExecFileFn = (
|
||||
cmd: string,
|
||||
args: string[],
|
||||
callback: (err: ExecFileException | null, stdout: string, stderr: string) => void,
|
||||
options?: any,
|
||||
) => {
|
||||
if (cmd === "pdf2zh") {
|
||||
pdf2zhArgs = args;
|
||||
const outputDirIndex = args.indexOf("-o");
|
||||
if (outputDirIndex !== -1 && args[outputDirIndex + 1]) {
|
||||
const outputDir = args[outputDirIndex + 1];
|
||||
if (!existsSync(outputDir)) {
|
||||
mkdirSync(outputDir, { recursive: true });
|
||||
}
|
||||
writeFileSync(join(outputDir, "input-mono.pdf"), "%PDF-1.4\n%Translated");
|
||||
}
|
||||
callback(null, "Translation complete", "");
|
||||
} else if (cmd === "tar") {
|
||||
callback(null, "Archive created", "");
|
||||
}
|
||||
};
|
||||
|
||||
const targetPath = join(testDir, "output.tar");
|
||||
await convert(testInputFile, "pdf", "pdf-en", targetPath, undefined, mockExecFile);
|
||||
|
||||
expect(pdf2zhArgs).toContain("-lo");
|
||||
expect(pdf2zhArgs).toContain("en");
|
||||
});
|
||||
});
|
||||
|
||||
describe("PDFMathTranslate converter - Japanese translation", () => {
|
||||
const testDir = "./test-output-pdfmathtranslate-ja";
|
||||
const testInputFile = join(testDir, "input.pdf");
|
||||
|
||||
beforeEach(() => {
|
||||
if (!existsSync(testDir)) {
|
||||
mkdirSync(testDir, { recursive: true });
|
||||
}
|
||||
writeFileSync(testInputFile, "%PDF-1.4\n%Test PDF content");
|
||||
});
|
||||
|
||||
afterEach(() => {
|
||||
if (existsSync(testDir)) {
|
||||
rmSync(testDir, { recursive: true, force: true });
|
||||
}
|
||||
});
|
||||
|
||||
test("should call pdf2zh with correct language argument for ja", async () => {
|
||||
let pdf2zhArgs: string[] = [];
|
||||
|
||||
const mockExecFile: ExecFileFn = (
|
||||
cmd: string,
|
||||
args: string[],
|
||||
callback: (err: ExecFileException | null, stdout: string, stderr: string) => void,
|
||||
options?: any,
|
||||
) => {
|
||||
if (cmd === "pdf2zh") {
|
||||
pdf2zhArgs = args;
|
||||
const outputDirIndex = args.indexOf("-o");
|
||||
if (outputDirIndex !== -1 && args[outputDirIndex + 1]) {
|
||||
const outputDir = args[outputDirIndex + 1];
|
||||
if (!existsSync(outputDir)) {
|
||||
mkdirSync(outputDir, { recursive: true });
|
||||
}
|
||||
writeFileSync(join(outputDir, "input-mono.pdf"), "%PDF-1.4\n%Translated");
|
||||
}
|
||||
callback(null, "Translation complete", "");
|
||||
} else if (cmd === "tar") {
|
||||
callback(null, "Archive created", "");
|
||||
}
|
||||
};
|
||||
|
||||
const targetPath = join(testDir, "output.tar");
|
||||
await convert(testInputFile, "pdf", "pdf-ja", targetPath, undefined, mockExecFile);
|
||||
|
||||
expect(pdf2zhArgs).toContain("-lo");
|
||||
expect(pdf2zhArgs).toContain("ja");
|
||||
});
|
||||
});
|
||||
|
||||
describe("PDFMathTranslate converter - Traditional Chinese", () => {
|
||||
const testDir = "./test-output-pdfmathtranslate-zhtw";
|
||||
const testInputFile = join(testDir, "input.pdf");
|
||||
|
||||
beforeEach(() => {
|
||||
if (!existsSync(testDir)) {
|
||||
mkdirSync(testDir, { recursive: true });
|
||||
}
|
||||
writeFileSync(testInputFile, "%PDF-1.4\n%Test PDF content");
|
||||
});
|
||||
|
||||
afterEach(() => {
|
||||
if (existsSync(testDir)) {
|
||||
rmSync(testDir, { recursive: true, force: true });
|
||||
}
|
||||
});
|
||||
|
||||
test("should call pdf2zh with correct language argument for zh-TW", async () => {
|
||||
let pdf2zhArgs: string[] = [];
|
||||
|
||||
const mockExecFile: ExecFileFn = (
|
||||
cmd: string,
|
||||
args: string[],
|
||||
callback: (err: ExecFileException | null, stdout: string, stderr: string) => void,
|
||||
options?: any,
|
||||
) => {
|
||||
if (cmd === "pdf2zh") {
|
||||
pdf2zhArgs = args;
|
||||
const outputDirIndex = args.indexOf("-o");
|
||||
if (outputDirIndex !== -1 && args[outputDirIndex + 1]) {
|
||||
const outputDir = args[outputDirIndex + 1];
|
||||
if (!existsSync(outputDir)) {
|
||||
mkdirSync(outputDir, { recursive: true });
|
||||
}
|
||||
writeFileSync(join(outputDir, "input-mono.pdf"), "%PDF-1.4\n%Translated");
|
||||
}
|
||||
callback(null, "Translation complete", "");
|
||||
} else if (cmd === "tar") {
|
||||
callback(null, "Archive created", "");
|
||||
}
|
||||
};
|
||||
|
||||
const targetPath = join(testDir, "output.tar");
|
||||
await convert(testInputFile, "pdf", "pdf-zh-TW", targetPath, undefined, mockExecFile);
|
||||
|
||||
expect(pdf2zhArgs).toContain("-lo");
|
||||
expect(pdf2zhArgs).toContain("zh-TW");
|
||||
});
|
||||
});
|
||||
|
||||
describe("PDFMathTranslate converter - Output structure", () => {
|
||||
const testDir = "./test-output-pdfmathtranslate-structure";
|
||||
const testInputFile = join(testDir, "input.pdf");
|
||||
|
||||
beforeEach(() => {
|
||||
if (!existsSync(testDir)) {
|
||||
mkdirSync(testDir, { recursive: true });
|
||||
}
|
||||
writeFileSync(testInputFile, "%PDF-1.4\n%Test PDF content");
|
||||
});
|
||||
|
||||
afterEach(() => {
|
||||
if (existsSync(testDir)) {
|
||||
rmSync(testDir, { recursive: true, force: true });
|
||||
}
|
||||
});
|
||||
|
||||
test("should create archive with original.pdf and translated-<lang>.pdf", async () => {
|
||||
let tarSourceDir = "";
|
||||
let archiveContents: string[] = [];
|
||||
|
||||
const mockExecFile: ExecFileFn = (
|
||||
cmd: string,
|
||||
args: string[],
|
||||
callback: (err: ExecFileException | null, stdout: string, stderr: string) => void,
|
||||
options?: any,
|
||||
) => {
|
||||
if (cmd === "pdf2zh") {
|
||||
const outputDirIndex = args.indexOf("-o");
|
||||
if (outputDirIndex !== -1 && args[outputDirIndex + 1]) {
|
||||
const outputDir = args[outputDirIndex + 1];
|
||||
if (!existsSync(outputDir)) {
|
||||
mkdirSync(outputDir, { recursive: true });
|
||||
}
|
||||
writeFileSync(join(outputDir, "input-mono.pdf"), "%PDF-1.4\n%Translated");
|
||||
}
|
||||
callback(null, "Translation complete", "");
|
||||
} else if (cmd === "tar") {
|
||||
// Capture the source directory for the archive
|
||||
const cIndex = args.indexOf("-C");
|
||||
if (cIndex !== -1 && args[cIndex + 1]) {
|
||||
tarSourceDir = args[cIndex + 1];
|
||||
// Read the files in the archive source directory
|
||||
if (existsSync(tarSourceDir)) {
|
||||
const { readdirSync } = require("node:fs");
|
||||
archiveContents = readdirSync(tarSourceDir);
|
||||
}
|
||||
}
|
||||
callback(null, "Archive created", "");
|
||||
}
|
||||
};
|
||||
|
||||
const targetPath = join(testDir, "output.tar");
|
||||
await convert(testInputFile, "pdf", "pdf-ko", targetPath, undefined, mockExecFile);
|
||||
|
||||
// Verify archive contains expected files
|
||||
expect(archiveContents).toContain("original.pdf");
|
||||
expect(archiveContents).toContain("translated-ko.pdf");
|
||||
});
|
||||
|
||||
test("should only use .tar format, not .tar.gz", async () => {
|
||||
let tarArgs: string[] = [];
|
||||
|
||||
const mockExecFile: ExecFileFn = (
|
||||
cmd: string,
|
||||
args: string[],
|
||||
callback: (err: ExecFileException | null, stdout: string, stderr: string) => void,
|
||||
options?: any,
|
||||
) => {
|
||||
if (cmd === "pdf2zh") {
|
||||
const outputDirIndex = args.indexOf("-o");
|
||||
if (outputDirIndex !== -1 && args[outputDirIndex + 1]) {
|
||||
const outputDir = args[outputDirIndex + 1];
|
||||
if (!existsSync(outputDir)) {
|
||||
mkdirSync(outputDir, { recursive: true });
|
||||
}
|
||||
writeFileSync(join(outputDir, "input-mono.pdf"), "%PDF-1.4\n%Translated");
|
||||
}
|
||||
callback(null, "Translation complete", "");
|
||||
} else if (cmd === "tar") {
|
||||
tarArgs = args;
|
||||
callback(null, "Archive created", "");
|
||||
}
|
||||
};
|
||||
|
||||
const targetPath = join(testDir, "output.tar");
|
||||
await convert(testInputFile, "pdf", "pdf-de", targetPath, undefined, mockExecFile);
|
||||
|
||||
// Verify tar is called with -cf (not -czf for gzip compression)
|
||||
expect(tarArgs[0]).toBe("-cf");
|
||||
expect(tarArgs[0]).not.toBe("-czf");
|
||||
|
||||
// Verify output path ends with .tar not .tar.gz
|
||||
const outputTar = tarArgs[1];
|
||||
expect(outputTar).toMatch(/\.tar$/);
|
||||
expect(outputTar).not.toMatch(/\.tar\.gz$/);
|
||||
expect(outputTar).not.toMatch(/\.tgz$/);
|
||||
});
|
||||
});
|
||||
|
||||
describe("PDFMathTranslate converter - Error handling", () => {
|
||||
const testDir = "./test-output-pdfmathtranslate-error";
|
||||
const testInputFile = join(testDir, "input.pdf");
|
||||
|
||||
beforeEach(() => {
|
||||
if (!existsSync(testDir)) {
|
||||
mkdirSync(testDir, { recursive: true });
|
||||
}
|
||||
writeFileSync(testInputFile, "%PDF-1.4\n%Test PDF content");
|
||||
});
|
||||
|
||||
afterEach(() => {
|
||||
if (existsSync(testDir)) {
|
||||
rmSync(testDir, { recursive: true, force: true });
|
||||
}
|
||||
});
|
||||
|
||||
test("should reject with error when pdf2zh fails", async () => {
|
||||
const mockExecFile: ExecFileFn = (
|
||||
cmd: string,
|
||||
args: string[],
|
||||
callback: (err: ExecFileException | null, stdout: string, stderr: string) => void,
|
||||
options?: any,
|
||||
) => {
|
||||
if (cmd === "pdf2zh") {
|
||||
const error = new Error("Translation failed") as ExecFileException;
|
||||
callback(error, "", "Error: Translation service unavailable");
|
||||
}
|
||||
};
|
||||
|
||||
const targetPath = join(testDir, "output.tar");
|
||||
|
||||
await expect(
|
||||
convert(testInputFile, "pdf", "pdf-zh", targetPath, undefined, mockExecFile)
|
||||
).rejects.toMatch(/pdf2zh error/);
|
||||
});
|
||||
|
||||
test("should reject when no output PDF is generated", async () => {
|
||||
const mockExecFile: ExecFileFn = (
|
||||
cmd: string,
|
||||
args: string[],
|
||||
callback: (err: ExecFileException | null, stdout: string, stderr: string) => void,
|
||||
options?: any,
|
||||
) => {
|
||||
if (cmd === "pdf2zh") {
|
||||
// Don't create any output files
|
||||
callback(null, "Complete", "");
|
||||
} else if (cmd === "tar") {
|
||||
callback(null, "Archive created", "");
|
||||
}
|
||||
};
|
||||
|
||||
const targetPath = join(testDir, "output.tar");
|
||||
|
||||
await expect(
|
||||
convert(testInputFile, "pdf", "pdf-zh", targetPath, undefined, mockExecFile)
|
||||
).rejects.toMatch(/No.*PDF.*found/);
|
||||
});
|
||||
});
|
||||
Loading…
Add table
Add a link
Reference in a new issue