#!/bin/bash
### Copyright 1999-2026. WebPros International GmbH. All rights reserved.

[ -z "$PLESK_INSTALLER_DEBUG" ] || set -x
[ -z "$PLESK_INSTALLER_STRICT_MODE" ] || set -e

export LC_ALL=C
unset GREP_OPTIONS

RET_SUCCESS=0
RET_WARN=1
RET_FATAL=2

is_function_defined()
{
	local fn="$1"
	case "$(type $fn 2>/dev/null)" in
	*function*)
		return 0
		;;
	esac
	return 1
}

# @params are tags in format "key=value"
# Report body (human readable information) is read from stdin
# and copied to stderr.
make_error_report()
{
	local report_file="${PLESK_INSTALLER_ERROR_REPORT:-}"

	local python_bin=
	for bin in "/opt/psa/bin/python" "/usr/local/psa/bin/python" "/usr/bin/python2" "/opt/psa/bin/py3-python" "/usr/local/psa/bin/py3-python" "/usr/libexec/platform-python" "/usr/bin/python3"; do
		if [ -x "$bin" ]; then
			python_bin="$bin"
			break
		fi
	done

	if [ -n "$report_file" -a -x "$python_bin" ]; then
		"$python_bin" -c 'import sys, json
report_file = sys.argv[1]
error = sys.stdin.read()

sys.stderr.write(error)

data = {
	"error": error,
}

for tag in sys.argv[2:]:
	k, v = tag.split("=", 1)
	data[k] = v

with open(report_file, "a") as f:
	json.dump(data, f)
	f.write("\n")
' "$report_file" "date=$(date --utc --iso-8601=ns)" "$@"
	else
		cat - >&2
	fi
}

detect_platform()
{
	. /etc/os-release
	os_name="$ID"
	os_version="${VERSION_ID%%.*}"
	os_arch="$(uname -m)"
	if [ -e /etc/debian_version ]; then
		case "$os_arch" in
			x86_64)  pkg_arch="amd64" ;;
			aarch64) pkg_arch="arm64" ;;
		esac
		if [ -n "$VERSION_CODENAME" ]; then
			os_codename="$VERSION_CODENAME"
		else
			case "$os_name$os_version" in
				debian10) os_codename="buster"   ;;
				debian11) os_codename="bullseye" ;;
				debian12) os_codename="bookworm" ;;
				ubuntu18) os_codename="bionic"   ;;
				ubuntu20) os_codename="focal"    ;;
				ubuntu22) os_codename="jammy"    ;;
				ubuntu24) os_codename="noble"    ;;
			esac
		fi
	fi

	case "$os_name$os_version" in
		rhel7|centos7|cloudlinux7|virtuozzo7)
			package_manager="yum"
		;;
		rhel*|centos*|cloudlinux*|almalinux*|rocky*)
			package_manager="dnf"
		;;
		debian*|ubuntu*)
			package_manager="apt"
		;;
	esac

	if [ "$os_name" = "ubuntu" -o "$os_name" = "debian" ]; then
		PRODUCT_ROOT_D="/opt/psa"
	else
		PRODUCT_ROOT_D="/usr/local/psa"
	fi
}

has_os_impl_function()
{
	local prefix="$1"
	local fn="${prefix}_${os_name}${os_version}"
	is_function_defined "$fn"
}

call_os_impl_function()
{
	local prefix="$1"
	shift
	local fn="${prefix}_${os_name}${os_version}"
	"$fn" "$@"
}

skip_checker_on_flag()
{
	local name="$1"
	local flag="$2"

	if [ -f "$flag" ]; then
		echo "$name was skipped due to flag file." >&2
		exit $RET_SUCCESS
	fi
}

skip_checker_on_env()
{
	local name="$1"
	local env="$2"

	if [ -n "$env" ]; then
		echo "$name was skipped due to environment variable." >&2
		exit $RET_SUCCESS
	fi
}

checker_main()
{
	local fnprefix="$1"
	shift

	detect_platform
	# try to execute checker only if all attributes are detected
	[ -n "$os_name" -a -n "$os_version" ] || return $RET_SUCCESS

	for checker in "${fnprefix}_${os_name}${os_version}" "${fnprefix}_${os_name}" "${fnprefix}"; do
		if is_function_defined "$checker"; then
			local rc=$RET_SUCCESS
			"$checker" "$@" || rc=$?
			[ "$(( $rc & $RET_FATAL ))" = "0" ] || return $RET_FATAL
			[ "$(( $rc & $RET_WARN  ))" = "0" ] || return $RET_WARN
			return $rc
		fi
	done
	return $RET_SUCCESS
}

#!/bin/sh
### Copyright 1999-2026. WebPros International GmbH. All rights reserved.

# The Pagespeed nginx module was dropped in Plesk 18.0.79.
# We should make sure it's either not enabled or can be disabled safely.
# Otherwise, nginx will not be able to start after the upgrade.

report_pagespeed_still_referenced()
{
	make_error_report 'stage=nginx_pagespeed_check' 'level=error' 'errtype=pagespeedstillreferenced' <<-EOL
		The nginx pagespeed module is no longer shipped with Plesk and was
		attempted to be disabled, but the nginx configuration still references
		pagespeed directives. Remove all "pagespeed" related directives from your
		custom nginx configuration and retry the upgrade.
	EOL
}

check_nginx_pagespeed()
{
	local modules_ctl_util="$PRODUCT_ROOT_D/admin/bin/nginx_modules_ctl"

	[ -x "$modules_ctl_util" ] || return 0

	"$modules_ctl_util" -s 2>/dev/null | grep -qx 'pagespeed on' || return 0

	if ! "$modules_ctl_util" -d pagespeed >/dev/null 2>&1; then
		report_pagespeed_still_referenced
		return $RET_FATAL
	fi

	return 0
}

# ---

skip_checker_on_flag "Nginx pagespeed check" "/tmp/plesk-installer-skip-nginx-pagespeed-check.flag"

checker_main 'check_nginx_pagespeed' "$1"