path: root/src/php/install.sh

#!/usr/bin/env bash
#-------------------------------------------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See https://go.microsoft.com/fwlink/?linkid=2090316 for license information.
#-------------------------------------------------------------------------------------------------------------
#
# Maintainer: The VS Code and Codespaces Teams

set -eux

VERSION=${VERSION:-"latest"}
INSTALL_COMPOSER=${INSTALL_COMPOSER:-"true"}
OVERRIDE_DEFAULT_VERSION=${OVERRIDE_DEFAULT_VERSION:-"true"}

export PHP_DIR=${PHP_DIR:-"/usr/local/php"}
USERNAME=${USERNAME:-"automatic"}
UPDATE_RC=${UPDATE_RC:-"true"}

# Comma-separated list of php versions to be installed
# alongside VERSION, but not set as default.
ADDITIONAL_VERSIONS=${ADDITIONAL_VERSIONS:-""}

export DEBIAN_FRONTEND=noninteractive

if [ "$(id -u)" -ne 0 ]; then
    echo -e 'Script must be run as root. Use sudo, su, or add "USER root" to your Dockerfile before running this script.'
    exit 1
fi


# Ensure that login shells get the correct path if the user updated the PATH using ENV.
rm -f /etc/profile.d/00-restore-env.sh
echo "export PATH=${PATH//$(sh -lc 'echo $PATH')/\$PATH}" > /etc/profile.d/00-restore-env.sh
chmod +x /etc/profile.d/00-restore-env.sh

# If in automatic mode, determine if a user already exists, if not use vscode
if [ "${USERNAME}" = "auto" ] || [ "${USERNAME}" = "automatic" ]; then
    USERNAME=""
    POSSIBLE_USERS=("vscode" "node" "codespace" "$(awk -v val=1000 -F ":" '$3==val{print $1}' /etc/passwd)")
    for CURRENT_USER in "${POSSIBLE_USERS[@]}"; do
        if id -u ${CURRENT_USER} > /dev/null 2>&1; then
            USERNAME=${CURRENT_USER}
            break
        fi
    done
    if [ "${USERNAME}" = "" ]; then
        USERNAME=root
    fi
elif [ "${USERNAME}" = "none" ]; then
    USERNAME=root
    USER_UID=0
    USER_GID=0
fi

architecture="$(uname -m)"
if [ "${architecture}" != "amd64" ] && [ "${architecture}" != "x86_64" ] && [ "${architecture}" != "arm64" ] && [ "${architecture}" != "aarch64" ]; then
    echo "(!) Architecture $architecture unsupported"
    exit 1
fi

updaterc() {
    if [ "${UPDATE_RC}" = "true" ]; then
        echo "Updating /etc/bash.bashrc and /etc/zsh/zshrc..."
        if [[ "$(cat /etc/bash.bashrc)" != *"$1"* ]]; then
            echo -e "$1" >> /etc/bash.bashrc
        fi
        if [ -f "/etc/zsh/zshrc" ] && [[ "$(cat /etc/zsh/zshrc)" != *"$1"* ]]; then
            echo -e "$1" >> /etc/zsh/zshrc
        fi
    fi
}

# Checks if packages are installed and installs them if not
check_packages() {
    if ! dpkg -s "$@" > /dev/null 2>&1; then
        apt-get update
        apt-get -y install --no-install-recommends "$@"
    fi
}

# Figure out correct version of PHP
find_version_from_git_tags() {
    local repository="https://github.com/php/php-src"
    local separator="."
    local escaped_separator=${separator//./\\.}
    local last_part="${escaped_separator}[0-9]+"
    local regex="\\K[0-9]+${escaped_separator}[0-9]+${last_part}$"
    local version_list="$(git ls-remote --tags ${repository} | grep -oP "${regex}" | tr -d ' ' | tr "${separator}" "." | sort -rV)"
    VERSION="$(echo "${version_list}" | head -n 1)"
}

# Install PHP Composer
addcomposer() {
    "${PHP_INSTALL_DIR}/bin/php" -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
    HASH="$(wget -q -O - https://composer.github.io/installer.sig)"
    "${PHP_INSTALL_DIR}/bin/php" -r "if (hash_file('sha384', 'composer-setup.php') === '$HASH') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
    "${PHP_INSTALL_DIR}/bin/php" composer-setup.php
    "${PHP_INSTALL_DIR}/bin/php" -r "unlink('composer-setup.php');"

    mv composer.phar "${PHP_INSTALL_DIR}/bin/composer"
}

# Install PHP if it's missing


# Persistent / runtime dependencies
RUNTIME_DEPS="wget ca-certificates git build-essential xz-utils"

# PHP dependencies
PHP_DEPS="libssl-dev libcurl4-openssl-dev libedit-dev libsqlite3-dev libxml2-dev zlib1g-dev libsodium-dev libargon2-dev libonig-dev"

# Dependencies required for running "phpize"
PHPIZE_DEPS="autoconf dpkg-dev file g++ gcc libc-dev make pkg-config re2c"

# Install dependencies
check_packages $RUNTIME_DEPS $PHP_DEPS $PHPIZE_DEPS

install_php() {
    VERSION="$1"

    # Fetch latest version of PHP if needed
    if [ "${VERSION}" = "latest" ] || [ "${VERSION}" = "lts" ]; then
        find_version_from_git_tags
    fi

    PHP_INSTALL_DIR="${PHP_DIR}/${VERSION}"
    if [ -d "${PHP_INSTALL_DIR}" ]; then
        echo "(!) PHP version ${VERSION} already exists."
        exit 1
    fi

    if ! cat /etc/group | grep -e "^php:" > /dev/null 2>&1; then
        groupadd -r php
    fi
    usermod -a -G php "${USERNAME}"

    PHP_URL="https://www.php.net/distributions/php-${VERSION}.tar.gz"

    PHP_INI_DIR="${PHP_INSTALL_DIR}/ini"
    CONF_DIR="${PHP_INI_DIR}/conf.d"
    mkdir -p "${CONF_DIR}";

    PHP_EXT_DIR="${PHP_INSTALL_DIR}/extensions"
    mkdir -p "${PHP_EXT_DIR}"

    PHP_SRC_DIR="/usr/src/php"
    mkdir -p $PHP_SRC_DIR
    cd $PHP_SRC_DIR
    wget -O php.tar.xz "$PHP_URL"

    tar -xf $PHP_SRC_DIR/php.tar.xz -C "$PHP_SRC_DIR" --strip-components=1
    cd $PHP_SRC_DIR;

    # PHP 7.4+, the pecl/pear installers are officially deprecated and are removed in PHP 8+
    # Thus, requiring an explicit "--with-pear"
    IFS="."
    read -a versions <<< "${VERSION}"
    PHP_MAJOR_VERSION=${versions[0]}
    PHP_MINOR_VERSION=${versions[1]}

    VERSION_CONFIG=""
    if (( $(($PHP_MAJOR_VERSION)) >= 8 )) || (( $(($PHP_MAJOR_VERSION)) == 7 && $(($PHP_MINOR_VERSION)) >= 4 )); then 
        VERSION_CONFIG="--with-pear"
    fi

    ./configure --prefix="${PHP_INSTALL_DIR}" --with-config-file-path="$PHP_INI_DIR" --with-config-file-scan-dir="$CONF_DIR" --enable-option-checking=fatal --with-curl --with-libedit --with-openssl --with-zlib --with-password-argon2 --with-sodium=shared "$VERSION_CONFIG" EXTENSION_DIR="$PHP_EXT_DIR";

    make -j "$(nproc)"
    find -type f -name '*.a' -delete
    make install
    find "${PHP_INSTALL_DIR}" -type f -executable -exec strip --strip-all '{}' + || true
    make clean

    cp -v $PHP_SRC_DIR/php.ini-* "$PHP_INI_DIR/";
    cp "$PHP_INI_DIR/php.ini-production" "$PHP_INI_DIR/php.ini"

    # Install xdebug
    "${PHP_INSTALL_DIR}/bin/pecl" install xdebug
    XDEBUG_INI="${CONF_DIR}/xdebug.ini"

    echo "zend_extension=${PHP_EXT_DIR}/xdebug.so" > "${XDEBUG_INI}"
    echo "xdebug.mode = debug" >> "${XDEBUG_INI}"
    echo "xdebug.start_with_request = yes" >> "${XDEBUG_INI}"
    echo "xdebug.client_port = 9003" >> "${XDEBUG_INI}"

    # Install PHP Composer if needed
    if [[ "${INSTALL_COMPOSER}" = "true" ]] || [[ $(composer --version) = "" ]]; then
        addcomposer
    fi

    CURRENT_DIR="${PHP_DIR}/current"
    if [[ ! -d "${CURRENT_DIR}" ]]; then
        ln -s -r "${PHP_INSTALL_DIR}" ${CURRENT_DIR}
    fi

    if [ "${OVERRIDE_DEFAULT_VERSION}" = "true" ]; then
        if [[ $(ls -l ${CURRENT_DIR}) != *"-> ${PHP_INSTALL_DIR}"* ]] ; then
            rm "${CURRENT_DIR}"
            ln -s -r "${PHP_INSTALL_DIR}" "${CURRENT_DIR}"
        fi
    fi

    rm -rf "${PHP_SRC_DIR}"
    updaterc "if [[ \"\${PATH}\" != *\"${CURRENT_DIR}\"* ]]; then export PATH=\"${CURRENT_DIR}/bin:\${PATH}\"; fi"
}

install_php "${VERSION}"

# Additional php versions to be installed but not be set as default.
if [ ! -z "${ADDITIONAL_VERSIONS}" ]; then
    OLDIFS=$IFS
    IFS=","
        read -a additional_versions <<< "$ADDITIONAL_VERSIONS"
        for version in "${additional_versions[@]}"; do
            OVERRIDE_DEFAULT_VERSION="false"
            install_php "${version}"
        done
    IFS=$OLDIFS
fi

chown -R "${USERNAME}:php" "${PHP_DIR}"
chmod -R g+r+w "${PHP_DIR}"
find "${PHP_DIR}" -type d | xargs -n 1 chmod g+s

echo "Done!"