FROM technosoft2000/alpine-base:3.12-1

LABEL maintainer="Technosoft2000 <technosoft2000@gmx.net>" \
      image.version="1.6.0" \
      image.description="Docker image for Calibre Web, based on docker image of Alpine" \
      image.date="2021-10-22" \
      url.docker="https://hub.docker.com/r/technosoft2000/calibre-web" \
      url.github="https://github.com/Technosoft2000/docker-calibre-web"

# Set basic environment settings
ENV \
    # - VERSION: the docker image version (corresponds to the above LABEL image.version)
    VERSION="1.6.0" \
    \
    # - LANG, LANGUAGE, LC_ALL: language dependent settings (Default: en_US.UTF-8)
    LANG="en_US.UTF-8" \
    LANGUAGE="en_US.UTF-8" \
    LC_ALL="en_US.UTF-8" \
    \
    # - PUSER, PGROUP: the APP user and group name
    PUSER="calibre" \
	PGROUP="calibre" \
    \
    # - APP_NAME: the APP name
    APP_NAME="Calibre-Web" \
    \
    # - APP_HOME: the APP home directory
    APP_HOME="/calibre-web" \
    \
    # - APP_REPO, APP_BRANCH: the APP GitHub repository and related branch
    # for related branch or tag use e.g. master
    APP_REPO="https://github.com/janeczku/calibre-web.git" \
    APP_BRANCH="master" \
    \
    # - AMAZON_KG_*: KindleGen is a command line tool which enables publishers to work
    # in an automated environment with a variety of source content including HTML, XHTML or EPUB
    AMAZON_KG_TAR="kindlegen_linux_2.6_i386_v2_9.tar.gz" \
    # AMAZON_KG_URL="http://kindlegen.s3.amazonaws.com/kindlegen_linux_2.6_i386_v2_9.tar.gz" \
    AMAZON_KG_URL="https://github.com/Technosoft2000/docker-calibre-web/releases/download/kindlegen/kindlegen_linux_2.6_i386_v2_9.tar.gz" \
    \
    # - CALIBRE_PATH: Configure the path where the Calibre database is located
    CALIBRE_PATH="/books" \
    \
    # - PKG_*: the needed applications for installation
    PKG_DEV="build-base python3-dev openssl-dev libffi-dev libxml2-dev libxslt-dev openldap-dev" \
    PKG_PYTHON="ca-certificates libxml2 libxslt libev openldap unrar" \
    # WARNING: Wand supports only ImageMagick 6 at the moment and Alpine delivers already ImageMagick 7
    # PKG_IMAGES="imagemagick imagemagick-doc imagemagick-dev" \
    # need to build ImageMagick 6 from source
    PKG_IMAGES_DEV="curl file fontconfig-dev freetype-dev lcms2-dev \
    libjpeg-turbo-dev libpng-dev libtool libwebp-dev perl-dev tiff-dev xz zlib-dev" \
    PKG_IMAGES="fontconfig freetype lcms2 libjpeg-turbo libltdl libpng \
    libwebp libxml2 tiff zlib" \
    \
    # Ghostscript
    PKG_GS_DEV="ghostscript-dev" \
    PKG_GS="ghostscript" \
    # WARNING: The current Ghosscript 9.26 has a bug which results into a SEGMENTATION FAULT at Alpine 3.9
    # and therefore we need to build our own Ghosscript 9.26 from source with additional patches
    # Needed to compile Ghostscript 
    #PKG_GS_DEV="libjpeg-turbo-dev libpng-dev jasper-dev expat-dev \
    #zlib-dev tiff-dev freetype-dev lcms2-dev gtk+3.0-dev \
    #cups-dev libtool jbig2dec-dev openjpeg-dev" \
    #PKG_GS="jasper expat jbig2dec openjpeg" \
    \
    # - MAGICK_HOME: the ImageMagick home especially for Wand
    # see at: http://docs.wand-py.org/en/latest/guide/install.html#explicit-link
    # see at: http://docs.wand-py.org/en/latest/wand/version.html
    # see at: http://e-mats.org/2017/04/imagemagick-magickwand-under-alphine-linux-python-alpine/
    #MAGICK_HOME="/usr"
    PKG_MAGICK_DEV="imagemagick6-dev imagemagick6-c++" \
    PKG_MAGICK="imagemagick6 imagemagick6-libs imagemagick6-doc" \
    \
    # This hack is widely applied to avoid python printing issues in docker containers.
    # See: https://github.com/Docker-Hub-frolvlad/docker-alpine-python3/pull/13
    PYTHONUNBUFFERED=1

RUN \
    # create temporary directories
    mkdir -p /tmp && \
    mkdir -p /var/cache/apk && \
    \
    # update the package list
    apk -U upgrade && \
    \
    # install python and create a symlink as python
    echo "**** install Python ****" && \
    apk add --no-cache python3 && \
    if [ ! -e /usr/bin/python ]; then ln -sf python3 /usr/bin/python ; fi && \
    \
    echo "**** install pip ****" && \
    python -m ensurepip && \
    rm -r /usr/lib/python*/ensurepip && \
    if [ ! -e /usr/bin/pip ]; then ln -s pip3 /usr/bin/pip ; fi && \
    pip install --no-cache --upgrade pip setuptools wheel && \
    \
    # cleanup temporary files
    rm -rf /tmp && \
    rm -rf /var/cache/apk/*

# Install GNU libc (aka glibc)
# https://github.com/sgerrand/alpine-pkg-glibc
COPY LOCALE.md /init/
RUN \
    ALPINE_GLIBC_BASE_URL="https://github.com/sgerrand/alpine-pkg-glibc/releases/download" && \
    ALPINE_GLIBC_PACKAGE_VERSION="2.33-r0" && \
    ALPINE_GLIBC_BASE_PACKAGE_FILENAME="glibc-$ALPINE_GLIBC_PACKAGE_VERSION.apk" && \
    ALPINE_GLIBC_BIN_PACKAGE_FILENAME="glibc-bin-$ALPINE_GLIBC_PACKAGE_VERSION.apk" && \
    ALPINE_GLIBC_I18N_PACKAGE_FILENAME="glibc-i18n-$ALPINE_GLIBC_PACKAGE_VERSION.apk" && \
    \
    # create temporary directories
    mkdir -p /tmp && \
    mkdir -p /var/cache/apk && \
    \
    apk add --no-cache --virtual=.build-dependencies wget ca-certificates && \
    apk add --no-cache parallel tar xz zstd && \
    \
    wget "https://alpine-pkgs.sgerrand.com/sgerrand.rsa.pub" \
         -O "/etc/apk/keys/sgerrand.rsa.pub" && \
    \
    wget "$ALPINE_GLIBC_BASE_URL/$ALPINE_GLIBC_PACKAGE_VERSION/$ALPINE_GLIBC_BASE_PACKAGE_FILENAME" \
         "$ALPINE_GLIBC_BASE_URL/$ALPINE_GLIBC_PACKAGE_VERSION/$ALPINE_GLIBC_BIN_PACKAGE_FILENAME" \
         "$ALPINE_GLIBC_BASE_URL/$ALPINE_GLIBC_PACKAGE_VERSION/$ALPINE_GLIBC_I18N_PACKAGE_FILENAME" && \
    \
    apk add --no-cache \
        "$ALPINE_GLIBC_BASE_PACKAGE_FILENAME" \
        "$ALPINE_GLIBC_BIN_PACKAGE_FILENAME" \
        "$ALPINE_GLIBC_I18N_PACKAGE_FILENAME" && \
    \
    # iterate through all locale and install it
    # NOTE: locale -a is not available in alpine linux, 
    # use `/usr/glibc-compat/bin/locale -a` instead
    cat /init/LOCALE.md | parallel "echo generate locale {}; /usr/glibc-compat/bin/localedef --force --inputfile {} --charmap UTF-8 {}.UTF-8;" && \
    \
    apk del .build-dependencies && \
    \
    rm "/etc/apk/keys/sgerrand.rsa.pub" && \
    rm "/root/.wget-hsts" && \
    rm "$ALPINE_GLIBC_BASE_PACKAGE_FILENAME" \
       "$ALPINE_GLIBC_BIN_PACKAGE_FILENAME" \
       "$ALPINE_GLIBC_I18N_PACKAGE_FILENAME"

RUN wget "https://www.archlinux.org/packages/core/x86_64/util-linux-libs/download/" -O /tmp/util-linux-libs.tar.zst \
    && mkdir -p /tmp/util-linux-libs \
    && tar -xf /tmp/util-linux-libs.tar.zst -C /tmp/util-linux-libs \
    && cp -rP /tmp/util-linux-libs/usr/lib/* /usr/glibc-compat/lib \
    && /usr/glibc-compat/sbin/ldconfig \
    && rm -rf /tmp/util-linux-libs /tmp/util-linux-libs.tar.zst

RUN wget "https://www.archlinux.org/packages/core/x86_64/nss/download/" -O /tmp/nss.tar.zst \
    && mkdir -p /tmp/nss \
    && tar -xf /tmp/nss.tar.zst -C /tmp/nss \
    && cp -rP /tmp/nss/usr/lib/* /usr/glibc-compat/lib \
    && /usr/glibc-compat/sbin/ldconfig \
    && rm -rf /tmp/nss /tmp/nss.tar.zst

RUN wget "https://www.archlinux.org/packages/core/x86_64/nspr/download/" -O /tmp/nspr.tar.zst \
    && mkdir -p /tmp/nspr \
    && tar -xf /tmp/nspr.tar.zst -C /tmp/nspr \
    && cp -rP /tmp/nspr/usr/lib/* /usr/glibc-compat/lib \
    && /usr/glibc-compat/sbin/ldconfig \
    && rm -rf /tmp/nspr /tmp/nspr.tar.zst

# TODO
# ERROR: comicapi 2.0 has requirement natsort==3.5.2, but you'll have natsort 6.2.0 which is incompatible.
RUN \
    echo "--- Update the package list ------------------------------------------------" && \
    apk -U upgrade && \
    \
    echo "--- Install applications via package manager -------------------------------" && \
    apk -U add --no-cache $PKG_DEV $PKG_PYTHON $PKG_IMAGES_DEV $PKG_IMAGES $PKG_GS_DEV $PKG_GS $PKG_MAGICK_DEV $PKG_MAGICK && \
    \
    echo "--- Upgrade pip to the latest version --------------------------------------" && \
    pip install --upgrade pip && \
    \
    echo "--- Install python packages via pip ----------------------------------------" && \
    pip --no-cache-dir install --upgrade \
        setuptools \
        pyopenssl \
    ### REQUIRED ###
    ### see https://github.com/janeczku/calibre-web/blob/master/requirements.txt
    ### https://github.com/janeczku/calibre-web/commit/1cb640e51e52bb6a02e2cecaf6cb3e9bd2b1349e
        'cryptography<3.4.0' \
        'Babel>=1.3, <3.0' \
        'Flask-Babel>=0.11.1,<2.1.0' \
        'Flask-Login>=0.3.2,<0.5.1' \
        'Flask-Principal>=0.3.2,<0.5.1' \
        'singledispatch>=3.4.0.0,<3.5.0.0' \
        'backports_abc>=0.4' \
        'Flask>=1.0.2,<2.1.0' \
        'iso-639>=0.4.5,<0.5.0' \
        'PyPDF3>=1.0.0,<1.0.4' \
        'pytz>=2016.10' \
        'requests>=2.11.1,<2.25.0' \
        'SQLAlchemy>=1.3.0,<1.5.0' \
        'tornado>=4.1,<6.2' \
        'Wand>=0.4.4,<0.7.0' \
        'unidecode>=0.04.19,<1.3.0' \
        'lxml>=3.8.0,<4.7.0' \
        'flask-wtf>=0.14.2,<0.16.0' \

    ### OPTIONAL ###
    ### https://github.com/janeczku/calibre-web/blob/master/optional-requirements.txt
    ### https://github.com/janeczku/calibre-web/commit/7ba014ba499df954e9019ec524293817d520212f
        # GDrive Integration
        'google-api-python-client>=1.7.11,<2.1.0' \
        # allow gevent 20.9.0 otherwise: 
        # <frozen importlib._bootstrap>:219: RuntimeWarning: greenlet.greenlet size changed, may indicate binary incompatibility. Expected 144 from C header, got 152 from PyObject
        # https://github.com/gevent/gevent/issues/1260
        'gevent>20.6.0,<21.2.0' \
        'greenlet>=0.4.17,<1.2.0' \
        'httplib2>=0.9.2,<0.20.0' \
        'oauth2client>=4.0.0,<4.1.4' \
        'uritemplate>=3.0.0,<3.1.0' \
        'pyasn1-modules>=0.0.8,<0.3.0' \
        'pyasn1>=0.1.9,<0.5.0' \
        'PyDrive2>=1.3.1,<1.9.0' \
        'PyYAML>=3.12' \
        'rsa>=3.4.2,<4.8.0' \
        'six>=1.10.0,<1.17.0' \
        # Gmail
        'google-auth-oauthlib>=0.4.3,<0.5.0' \
        # goodreads
        'goodreads>=0.3.2,<0.4.0' \
        'python-Levenshtein>=0.12.0,<0.13.0' \
        # ldap login
        'python-ldap>=3.0.0,<3.4.0' \
        'Flask-SimpleLDAP>=1.4.0,<1.5.0' \
        #oauth
        'Flask-Dance>=2.0.0,<5.1.0' \
        'SQLAlchemy-Utils>=0.33.5,<0.38.0' \
        # extracting metadata
        'Pillow>=4.0.0,<7.2.0' \
        'rarfile>=2.7' \
        'scholarly>=1.2.0, <1.3' \
        # other
        'natsort>=2.2.0,<7.2.0' \
        'comicapi>= 2.2.0,<2.3.0' \
        # Kobo integration
        'jsonschema>=3.2.0,<3.3.0' \
    && \
    \
    # cleanup temporary files
    rm -rf /tmp/* 

# Install calibre binary
# enhancement from jim3ma/docker-calibre-web
# needed for calibre ebook-convert command line tool
# https://github.com/jim3ma/docker-calibre-web
# https://manual.calibre-ebook.com/generated/en/ebook-convert.html
ENV \
    LD_LIBRARY_PATH="/usr/lib:/opt/calibre/lib" \
    PATH="$PATH:/opt/calibre" \
    LC_ALL="C" \
    CALIBRE_INSTALLER_SOURCE_CODE_URL="https://raw.githubusercontent.com/kovidgoyal/calibre/master/setup/linux-installer.py"

RUN \
    apk update && \
    apk add --no-cache --upgrade \
        bash \
        ca-certificates \
        gcc \
        libxcomposite \
        mesa-gl \
        python3 \
        qt5-qtbase-x11 \
        xdg-utils \
        xz \
        wget && \
    \
    # download Calibre version 5.30.0
    wget -O- ${CALIBRE_INSTALLER_SOURCE_CODE_URL} | \
        python -c \
        "import sys; \
        main=lambda:sys.stderr.write('Download failed\n'); \
        exec(sys.stdin.read()); \
        main(install_dir='/opt', isolated=True, version='5.30.0')" && \
    \
    rm -rf /tmp/calibre-installer-cache && \
    \
    # remove not needed packages
    apk del --purge $PKG_DEV \
                    $PKG_IMAGES_DEV && \
    \
    # create Calibre Web folder structure
    mkdir -p $APP_HOME/app && \
    \
    # cleanup temporary files
    rm -rf /tmp && \
    rm -rf /var/cache/apk/*

# set the working directory for the APP
WORKDIR $APP_HOME/app

# copy files to the image (info.txt and scripts)
COPY *.txt /init/
COPY *.sh /init/

# copy Calibre related files (e.g. metadata.db)
COPY calibre-init /init/calibre-init

# copy patched version of ImageMagick policy.xml
COPY imagemagick/policy.xml /etc/ImageMagick-6

# Set volumes for the Calibre Web folder structure
VOLUME /books
VOLUME $APP_HOME/app
VOLUME $APP_HOME/config
VOLUME $APP_HOME/kindlegen

# Expose ports
EXPOSE 8083