Dockerfile.alpine

#
# NOTE: THIS DOCKERFILE IS GENERATED FROM "Dockerfile.template" VIA
# `./generate_dockerfiles.sh`
#
# PLEASE DO NOT EDIT IT DIRECTLY.
#

FROM alpine:3.18 as builder

WORKDIR /build

# Common dependencies
RUN apk add git bash build-base make cmake ninja curl zlib-dev patch linux-headers python3 python3-dev

# The following are needed because we are going to change some autoconf scripts,
# both for libnghttp2 and curl.
RUN apk add autoconf automake pkgconfig libtool



# Dependencies for building libnss
# See https://firefox-source-docs.mozilla.org/security/nss/build.html#mozilla-projects-nss-building
RUN apk add mercurial py3-pip clang-analyzer


# Download and compile libbrotli
ARG BROTLI_VERSION=1.0.9
RUN curl -L https://github.com/google/brotli/archive/refs/tags/v${BROTLI_VERSION}.tar.gz -o brotli-${BROTLI_VERSION}.tar.gz && \
    tar xf brotli-${BROTLI_VERSION}.tar.gz
RUN cd brotli-${BROTLI_VERSION} && \
    mkdir build && cd build && \
    cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=./installed .. && \
    cmake --build . --config Release --target install

# Needed for building libnss
RUN pip install gyp-next

ARG NSS_VERSION=nss-3.92
# This tarball is already bundled with nspr, a dependency of libnss.
ARG NSS_URL=https://ftp.mozilla.org/pub/security/nss/releases/NSS_3_92_RTM/src/nss-3.92-with-nspr-4.35.tar.gz

# Download and compile nss.
RUN curl -o ${NSS_VERSION}.tar.gz ${NSS_URL}
RUN tar xf ${NSS_VERSION}.tar.gz && \
    cd ${NSS_VERSION}/nss && \
    ./build.sh -o --disable-tests --static --python=python3

ARG NGHTTP2_VERSION=nghttp2-1.56.0
ARG NGHTTP2_URL=https://github.com/nghttp2/nghttp2/releases/download/v1.56.0/nghttp2-1.56.0.tar.bz2

# Download nghttp2 for HTTP/2.0 support.
RUN curl -o ${NGHTTP2_VERSION}.tar.bz2 -L ${NGHTTP2_URL}
RUN tar xf ${NGHTTP2_VERSION}.tar.bz2

# Compile nghttp2
RUN cd ${NGHTTP2_VERSION} && \
    ./configure --prefix=/build/${NGHTTP2_VERSION}/installed --with-pic --disable-shared && \
    make && make install

# Download curl.
ARG CURL_VERSION=curl-8.1.1
RUN curl -o ${CURL_VERSION}.tar.xz https://curl.se/download/${CURL_VERSION}.tar.xz
RUN tar xf ${CURL_VERSION}.tar.xz

# Patch curl and re-generate the configure script
COPY patches/curl-*.patch ${CURL_VERSION}/
RUN cd ${CURL_VERSION} && \
    for p in $(ls curl-*.patch); do patch -p1 < $p; done && \
    autoreconf -fi

# Compile curl with nghttp2, libbrotli and nss (firefox) or boringssl (chrome).
# Enable keylogfile for debugging of TLS traffic.
RUN cd ${CURL_VERSION} && \
    ./configure --prefix=/build/install \
                --enable-static \
                --disable-shared \
                --enable-websockets \
                --with-nghttp2=/build/${NGHTTP2_VERSION}/installed \
                --with-brotli=/build/brotli-${BROTLI_VERSION}/build/installed \
                --with-nss=/build/${NSS_VERSION}/dist/Release \
                --with-nss-deprecated \
                CFLAGS="-I/build/${NSS_VERSION}/dist/public/nss -I/build/${NSS_VERSION}/dist/Release/include/nspr" \
                USE_CURL_SSLKEYLOGFILE=true && \
    make && make install

RUN mkdir out && \
    cp /build/install/bin/curl-impersonate-ff out/ && \
    ln -s curl-impersonate-ff out/curl-impersonate && \
    strip out/curl-impersonate

# Verify that the resulting 'curl' has all the necessary features.
RUN ./out/curl-impersonate -V | grep -q zlib && \
    ./out/curl-impersonate -V | grep -q brotli && \
    ./out/curl-impersonate -V | grep -q nghttp2 && \
    ./out/curl-impersonate -V | grep -q -e NSS -e BoringSSL && \
    ./out/curl-impersonate -V | grep -q -e wss

# Verify that the resulting 'curl' is really statically compiled
RUN ! (ldd ./out/curl-impersonate | grep -q -e libcurl -e nghttp2 -e brotli -e ssl -e crypto)

RUN rm -Rf /build/install

# Re-compile libcurl dynamically
RUN cd ${CURL_VERSION} && \
    ./configure --prefix=/build/install \
                --enable-websockets \
                --with-nghttp2=/build/${NGHTTP2_VERSION}/installed \
                --with-brotli=/build/brotli-${BROTLI_VERSION}/build/installed \
                --with-nss=/build/${NSS_VERSION}/dist/Release \
                --with-nss-deprecated \
                CFLAGS="-I/build/${NSS_VERSION}/dist/public/nss -I/build/${NSS_VERSION}/dist/Release/include/nspr" \
                USE_CURL_SSLKEYLOGFILE=true && \
    make clean && make && make install

# Copy libcurl-impersonate and symbolic links
RUN cp -d /build/install/lib/libcurl-impersonate* /build/out

RUN ver=$(readlink -f ${CURL_VERSION}/lib/.libs/libcurl-impersonate-ff.so | sed 's/.*so\.//') && \
    major=$(echo -n $ver | cut -d'.' -f1) && \
    ln -s "libcurl-impersonate-ff.so.$ver" "out/libcurl-impersonate.so.$ver" && \
    ln -s "libcurl-impersonate.so.$ver" "out/libcurl-impersonate.so" && \
    strip "out/libcurl-impersonate.so.$ver"

# Verify that the resulting 'libcurl' is really statically compiled against its
# dependencies.
RUN ! (ldd ./out/curl-impersonate | grep -q -e nghttp2 -e brotli -e ssl -e crypto)

# Wrapper scripts
COPY curl_ff* out/
# Replace /usr/bin/env bash with /usr/bin/env ash
RUN sed -i 's@/usr/bin/env bash@/usr/bin/env ash@' out/curl_*
RUN chmod +x out/curl_*

# Create a final, minimal image with the compiled binaries
# only.
FROM alpine:3.18
# curl tries to load the CA certificates for libnss.
# It loads them from /usr/lib/libnssckbi.so,
# which is supplied by 'nss' on alpine.
RUN apk add --no-cache nss
# Copy curl-impersonate from the builder image
COPY --from=builder /build/out/curl-impersonate* /usr/local/bin
COPY --from=builder /build/out/libcurl-impersonate* /usr/local/lib
# Wrapper scripts
COPY --from=builder /build/out/curl_* /usr/local/bin/