#
# Taken from the official PHP image's Dockerfile
# (https://github.com/docker-library/php/tree/2bf33a859340cf4932a7bce5ae7bc935fc778b9d/7.1/buster/fpm),
# with the changes marked "chialab:".
#

# chialab: deb.sury.org's patches for this version, from the Salsa commit of the build named in PHP_PATCHES.
FROM scratch AS deb-patches
ARG DEB_PATCHES=https://salsa.debian.org/php-team/php/-/archive/a88ccf5051d416b9f47faf85df9b7b875e111a71/php-a88ccf5051d416b9f47faf85df9b7b875e111a71.tar.gz?path=debian/patches
ADD --unpack=true $DEB_PATCHES /

FROM debian:buster-slim

# chialab: Debian buster has been moved to archive.debian.org.
RUN sed -i -e 's/deb.debian.org/archive.debian.org/g' \
           -e 's/security.debian.org/archive.debian.org/g' \
           -e '/buster-updates/d' /etc/apt/sources.list

# prevent Debian's PHP packages from being installed
# https://github.com/docker-library/php/pull/542
RUN set -eux; \
	{ \
		echo 'Package: php*'; \
		echo 'Pin: release *'; \
		echo 'Pin-Priority: -1'; \
	} > /etc/apt/preferences.d/no-debian-php

# dependencies required for running "phpize"
# (see persistent deps below)
ENV PHPIZE_DEPS \
		autoconf \
		dpkg-dev \
		file \
		g++ \
		gcc \
		libc-dev \
		make \
		pkg-config \
		re2c

# persistent / runtime deps
RUN set -eux; \
	apt-get update; \
	apt-get install -y --no-install-recommends \
		$PHPIZE_DEPS \
		ca-certificates \
		curl \
		xz-utils \
	; \
	rm -rf /var/lib/apt/lists/*

ENV PHP_INI_DIR /usr/local/etc/php
RUN set -eux; \
	mkdir -p "$PHP_INI_DIR/conf.d"; \
# allow running as an arbitrary user (https://github.com/docker-library/php/issues/743)
	[ ! -d /var/www/html ]; \
	mkdir -p /var/www/html; \
	chown www-data:www-data /var/www/html; \
	chmod 777 /var/www/html

##<autogenerated>##
ENV PHP_EXTRA_CONFIGURE_ARGS --enable-fpm --with-fpm-user=www-data --with-fpm-group=www-data --disable-cgi
##</autogenerated>##

# Apply stack smash protection to functions using local buffers and alloca()
# Make PHP's main executable position-independent (improves ASLR security mechanism, and has no performance impact on x86_64)
# Enable optimization (-O2)
# Enable linker optimization (this sorts the hash buckets to improve cache locality, and is non-default)
# Adds GNU HASH segments to generated executables (this is used if present, and is much faster than sysv hash; in this configuration, sysv hash is also generated)
# https://github.com/docker-library/php/issues/272
# -D_LARGEFILE_SOURCE and -D_FILE_OFFSET_BITS=64 (https://www.php.net/manual/en/intro.filesystem.php)
ENV PHP_CFLAGS="-fstack-protector-strong -fpic -fpie -O2 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
ENV PHP_CPPFLAGS="$PHP_CFLAGS"
ENV PHP_LDFLAGS="-Wl,-O1 -Wl,--hash-style=both -pie"

ENV GPG_KEYS A917B1ECDA84AEC2B568FED6F50ABC807BD5DCD0 528995BFEDFBA7191D46839EF9BA0ADA31CBD89E 1729F83938DA44E27BA0F4D3DBDB397470D12172

ENV PHP_VERSION 7.1.33
# chialab: the php.net mirror redirector is gone.
ENV PHP_URL="https://www.php.net/distributions/php-7.1.33.tar.xz" PHP_ASC_URL="https://www.php.net/distributions/php-7.1.33.tar.xz.asc"
ENV PHP_SHA256="bd7c0a9bd5433289ee01fd440af3715309faf583f75832b64fe169c100d52968" PHP_MD5=""

RUN set -eux; \
	\
	savedAptMark="$(apt-mark showmanual)"; \
	apt-get update; \
	apt-get install -y --no-install-recommends gnupg dirmngr; \
	rm -rf /var/lib/apt/lists/*; \
	\
	mkdir -p /usr/src; \
	cd /usr/src; \
	\
	curl -fsSL -o php.tar.xz "$PHP_URL"; \
	\
	if [ -n "$PHP_SHA256" ]; then \
		echo "$PHP_SHA256 *php.tar.xz" | sha256sum -c -; \
	fi; \
	if [ -n "$PHP_MD5" ]; then \
		echo "$PHP_MD5 *php.tar.xz" | md5sum -c -; \
	fi; \
	\
	if [ -n "$PHP_ASC_URL" ]; then \
		curl -fsSL -o php.tar.xz.asc "$PHP_ASC_URL"; \
		export GNUPGHOME="$(mktemp -d)"; \
		for key in $GPG_KEYS; do \
# chialab: the SKS keyserver pool is gone.
			gpg --batch --keyserver keyserver.ubuntu.com --recv-keys "$key"; \
		done; \
		gpg --batch --verify php.tar.xz.asc php.tar.xz; \
		gpgconf --kill all; \
		rm -rf "$GNUPGHOME"; \
	fi; \
	\
	apt-mark auto '.*' > /dev/null; \
	apt-mark manual $savedAptMark > /dev/null; \
	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false

# chialab: helper scripts are added from the source commit.
ARG DOCKER_PHP_SCRIPTS=https://raw.githubusercontent.com/docker-library/php/2bf33a859340cf4932a7bce5ae7bc935fc778b9d/7.1/buster/fpm
ADD --chmod=755 $DOCKER_PHP_SCRIPTS/docker-php-source /usr/local/bin/

# chialab: security backports for this EOL version (see eol/patches).
ENV PHP_PATCHES="deb.sury.org-7.1.33-81"
LABEL it.chialab.php.patches="deb.sury.org-7.1.33-81"
RUN --mount=type=bind,from=deb-patches,target=/usr/src/deb-patches \
	--mount=type=bind,from=patches,source=series.7.1,target=/usr/src/php-series \
	--mount=type=bind,from=patches,source=docker-php-source-patch,target=/usr/local/bin/docker-php-source-patch \
	docker-php-source-patch /usr/src/php-series /usr/src/deb-patches

RUN set -eux; \
	\
	savedAptMark="$(apt-mark showmanual)"; \
	apt-get update; \
	apt-get install -y --no-install-recommends \
		libcurl4-openssl-dev \
		libedit-dev \
		libsqlite3-dev \
		libssl-dev \
		libxml2-dev \
		zlib1g-dev \
		${PHP_EXTRA_BUILD_DEPS:-} \
	; \
	rm -rf /var/lib/apt/lists/*; \
	\
	export \
		CFLAGS="$PHP_CFLAGS" \
		CPPFLAGS="$PHP_CPPFLAGS" \
		LDFLAGS="$PHP_LDFLAGS" \
	; \
	docker-php-source extract; \
	cd /usr/src/php; \
	gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)"; \
	debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
# https://bugs.php.net/bug.php?id=74125
	if [ ! -d /usr/include/curl ]; then \
		ln -sT "/usr/include/$debMultiarch/curl" /usr/local/include/curl; \
	fi; \
	./configure \
		--build="$gnuArch" \
		--with-config-file-path="$PHP_INI_DIR" \
		--with-config-file-scan-dir="$PHP_INI_DIR/conf.d" \
		\
# make sure invalid --configure-flags are fatal errors intead of just warnings
		--enable-option-checking=fatal \
		\
# https://github.com/docker-library/php/issues/439
		--with-mhash \
		\
# --enable-ftp is included here because ftp_ssl_connect() needs ftp to be compiled statically (see https://github.com/docker-library/php/issues/236)
		--enable-ftp \
# --enable-mbstring is included here because otherwise there's no way to get pecl to use it properly (see https://github.com/docker-library/php/issues/195)
		--enable-mbstring \
# --enable-mysqlnd is included here because it's harder to compile after the fact than extensions are (since it's a plugin for several extensions, not an extension in itself)
		--enable-mysqlnd \
# always build against system sqlite3 (https://github.com/php/php-src/commit/6083a387a81dbbd66d6316a3a12a63f06d5f7109)
		--with-pdo-sqlite=/usr \
		--with-sqlite3=/usr \
		\
		--with-curl \
		--with-libedit \
		--with-openssl \
		--with-zlib \
		\
# bundled pcre does not support JIT on s390x
# https://manpages.debian.org/stretch/libpcre3-dev/pcrejit.3.en.html#AVAILABILITY_OF_JIT_SUPPORT
		$(test "$gnuArch" = 's390x-linux-gnu' && echo '--without-pcre-jit') \
		--with-libdir="lib/$debMultiarch" \
		\
		${PHP_EXTRA_CONFIGURE_ARGS:-} \
	; \
	make -j "$(nproc)"; \
	find -type f -name '*.a' -delete; \
	make install; \
	find /usr/local/bin /usr/local/sbin -type f -executable -exec strip --strip-all '{}' + || true; \
	make clean; \
	\
# https://github.com/docker-library/php/issues/692 (copy default example "php.ini" files somewhere easily discoverable)
	cp -v php.ini-* "$PHP_INI_DIR/"; \
	\
	cd /; \
	docker-php-source delete; \
	\
# reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
	apt-mark auto '.*' > /dev/null; \
	[ -z "$savedAptMark" ] || apt-mark manual $savedAptMark; \
	find /usr/local -type f -executable -exec ldd '{}' ';' \
		| awk '/=>/ { print $(NF-1) }' \
		| sort -u \
		| xargs -r dpkg-query --search \
		| cut -d: -f1 \
		| sort -u \
		| xargs -r apt-mark manual \
	; \
	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
	\
# update pecl channel definitions https://github.com/docker-library/php/issues/443
	pecl update-channels; \
	rm -rf /tmp/pear ~/.pearrc; \
# smoke test
	php --version

# chialab: from the source commit.
ADD --chmod=755 \
	$DOCKER_PHP_SCRIPTS/docker-php-ext-configure \
	$DOCKER_PHP_SCRIPTS/docker-php-ext-enable \
	$DOCKER_PHP_SCRIPTS/docker-php-ext-install \
	$DOCKER_PHP_SCRIPTS/docker-php-entrypoint \
	/usr/local/bin/

# temporary "freetype-config" workaround for https://github.com/docker-library/php/issues/865 (https://bugs.php.net/bug.php?id=76324)
RUN { echo '#!/bin/sh'; echo 'exec pkg-config "$@" freetype2'; } > /usr/local/bin/freetype-config && chmod +x /usr/local/bin/freetype-config

ENTRYPOINT ["docker-php-entrypoint"]
##<autogenerated>##
WORKDIR /var/www/html

RUN set -eux; \
	cd /usr/local/etc; \
	if [ -d php-fpm.d ]; then \
		# for some reason, upstream's php-fpm.conf.default has "include=NONE/etc/php-fpm.d/*.conf"
		sed 's!=NONE/!=!g' php-fpm.conf.default | tee php-fpm.conf > /dev/null; \
		cp php-fpm.d/www.conf.default php-fpm.d/www.conf; \
	else \
		# PHP 5.x doesn't use "include=" by default, so we'll create our own simple config that mimics PHP 7+ for consistency
		mkdir php-fpm.d; \
		cp php-fpm.conf.default php-fpm.d/www.conf; \
		{ \
			echo '[global]'; \
			echo 'include=etc/php-fpm.d/*.conf'; \
		} | tee php-fpm.conf; \
	fi; \
	{ \
		echo '[global]'; \
		echo 'error_log = /proc/self/fd/2'; \
		echo; \
		echo '[www]'; \
		echo '; if we send this to /proc/self/fd/1, it never appears'; \
		echo 'access.log = /proc/self/fd/2'; \
		echo; \
		echo 'clear_env = no'; \
		echo; \
		echo '; Ensure worker stdout and stderr are sent to the main error log.'; \
		echo 'catch_workers_output = yes'; \
	} | tee php-fpm.d/docker.conf; \
	{ \
		echo '[global]'; \
		echo 'daemonize = no'; \
		echo; \
		echo '[www]'; \
		echo 'listen = 9000'; \
	} | tee php-fpm.d/zz-docker.conf

# Override stop signal to stop process gracefully
# https://github.com/php/php-src/blob/17baa87faddc2550def3ae7314236826bc1b1398/sapi/fpm/php-fpm.8.in#L163
STOPSIGNAL SIGQUIT

EXPOSE 9000
CMD ["php-fpm"]
##</autogenerated>##