epub2pdf: title-based export names, .pdf download headers, security hardening (68 tests green)

2026-08-30 09:03:39 -04:00
commit 5580004aeb
22 changed files with 2351 additions and 0 deletions
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+# EPUB3 -> PDF converter (Flask + WeasyPrint) — Coolify / any Docker host
+# WeasyPrint needs pango + fontconfig system libraries; CJK fonts for full-text support.
+FROM python:3.12-slim
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    PORT=8030 \
+    DATA_DIR=/app/data \
+    PIP_NO_CACHE_DIR=1
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libpango-1.0-0 \
+    libpangoft2-1.0-0 \
+    libharfbuzz0b \
+    libffi8 \
+    shared-mime-info \
+    fontconfig \
+    fonts-dejavu-core \
+    fonts-noto-cjk \
+    && rm -rf /var/lib/apt/lists/* && fc-cache -f
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY app.py .
+COPY templates/ ./templates/
+
+# Persistent data (uploads/output/work) — mount a volume at /app/data
+VOLUME ["/app/data"]
+
+EXPOSE 8030
+
+# Single worker: the in-memory JOBS registry must live in one process.
+# Threads give concurrency while conversions run in their own worker threads.
+CMD ["sh", "-c", "gunicorn app:app --bind 0.0.0.0:${PORT} --workers 1 --threads 8 --timeout 1200 --graceful-timeout 30 --access-logfile - --error-logfile -"]