#!/bin/bash
# Copyright Broadcom, Inc. All Rights Reserved.
# SPDX-License-Identifier: APACHE-2.0
#
# Environment configuration for phpmyadmin

# The values for all environment variables will be set in the below order of precedence
# 1. Custom environment variables defined below after Bitnami defaults
# 2. Constants defined in this file (environment variables with no default), i.e. BITNAMI_ROOT_DIR
# 3. Environment variables overridden via external files using *_FILE variables (see below)
# 4. Environment variables set externally (i.e. current Bash context/Dockerfile/userdata)

# Load logging library
# shellcheck disable=SC1090,SC1091
. /opt/bitnami/scripts/liblog.sh

export BITNAMI_ROOT_DIR="/opt/bitnami"
export BITNAMI_VOLUME_DIR="/bitnami"

# Logging configuration
export MODULE="${MODULE:-phpmyadmin}"
export BITNAMI_DEBUG="${BITNAMI_DEBUG:-false}"

# By setting an environment variable matching *_FILE to a file path, the prefixed environment
# variable will be overridden with the value specified in that file
phpmyadmin_env_vars=(
    PHPMYADMIN_ALLOW_ARBITRARY_SERVER
    PHPMYADMIN_ALLOW_REMOTE_CONNECTIONS
    PHPMYADMIN_URL_PREFIX
    PHPMYADMIN_ABSOLUTE_URI
    PHPMYADMIN_EXEC_TIME_LIMIT
    PHPMYADMIN_MEMORY_LIMIT
    DATABASE_HOST
    DATABASE_USER
    DATABASE_PASSWORD
    DATABASE_PORT_NUMBER
    DATABASE_ALLOW_NO_PASSWORD
    DATABASE_ENABLE_SSL
    DATABASE_SSL_KEY
    DATABASE_SSL_CERT
    DATABASE_SSL_CA
    DATABASE_SSL_CA_PATH
    DATABASE_SSL_CIPHERS
    DATABASE_SSL_VERIFY
    CONFIGURATION_STORAGE_ENABLE
    CONFIGURATION_STORAGE_DB_HOST
    CONFIGURATION_STORAGE_DB_PORT_NUMBER
    CONFIGURATION_STORAGE_DB_USER
    CONFIGURATION_STORAGE_DB_PASSWORD
    CONFIGURATION_STORAGE_DB_NAME
    CONFIGURATION_ALLOWDENY_ORDER
    CONFIGURATION_ALLOWDENY_RULES
    PMA_ABSOLUTE_URI
)
for env_var in "${phpmyadmin_env_vars[@]}"; do
    file_env_var="${env_var}_FILE"
    if [[ -n "${!file_env_var:-}" ]]; then
        if [[ -r "${!file_env_var:-}" ]]; then
            export "${env_var}=$(< "${!file_env_var}")"
            unset "${file_env_var}"
        else
            warn "Skipping export of '${env_var}'. '${!file_env_var:-}' is not readable."
        fi
    fi
done
unset phpmyadmin_env_vars

# Load Bitnami installation configuration and user-data
[[ ! -f "${BITNAMI_ROOT_DIR}/scripts/bitnami-env.sh" ]] || . "${BITNAMI_ROOT_DIR}/scripts/bitnami-env.sh"

# Paths
export PHPMYADMIN_BASE_DIR="${BITNAMI_ROOT_DIR}/phpmyadmin"
export PHPMYADMIN_VOLUME_DIR="${BITNAMI_VOLUME_DIR}/phpmyadmin"
export PHPMYADMIN_TMP_DIR="${PHPMYADMIN_BASE_DIR}/tmp"
export PHPMYADMIN_CONF_FILE="${PHPMYADMIN_BASE_DIR}/config.inc.php"
export PHPMYADMIN_MOUNTED_CONF_FILE="${PHPMYADMIN_VOLUME_DIR}/config.inc.php"

# phpMyAdmin configuration
export PHPMYADMIN_DEFAULT_ALLOW_ARBITRARY_SERVER="no" # only used at build time
export PHPMYADMIN_ALLOW_ARBITRARY_SERVER="${PHPMYADMIN_ALLOW_ARBITRARY_SERVER:-}"
export PHPMYADMIN_DEFAULT_ALLOW_REMOTE_CONNECTIONS="no" # only used at build time
export PHPMYADMIN_ALLOW_REMOTE_CONNECTIONS="${PHPMYADMIN_ALLOW_REMOTE_CONNECTIONS:-$PHPMYADMIN_DEFAULT_ALLOW_REMOTE_CONNECTIONS}"
export PHPMYADMIN_DEFAULT_URL_PREFIX="/phpmyadmin" # only used at build time
export PHPMYADMIN_URL_PREFIX="${PHPMYADMIN_URL_PREFIX:-$PHPMYADMIN_DEFAULT_URL_PREFIX}"
PHPMYADMIN_ABSOLUTE_URI="${PHPMYADMIN_ABSOLUTE_URI:-"${PMA_ABSOLUTE_URI:-}"}"
export PHPMYADMIN_ABSOLUTE_URI="${PHPMYADMIN_ABSOLUTE_URI:-}"
export PHPMYADMIN_EXEC_TIME_LIMIT="${PHPMYADMIN_EXEC_TIME_LIMIT:-}"
export PHPMYADMIN_MEMORY_LIMIT="${PHPMYADMIN_MEMORY_LIMIT:-}"

# Database configuration
export DATABASE_DEFAULT_HOST="127.0.0.1" # only used at build time
export DATABASE_HOST="${DATABASE_HOST:-}"
export DATABASE_USER="${DATABASE_USER:-}"
export DATABASE_PASSWORD="${DATABASE_PASSWORD:-}"
export DATABASE_DEFAULT_PORT_NUMBER="3306" # only used at build time
export DATABASE_PORT_NUMBER="${DATABASE_PORT_NUMBER:-}"
export DATABASE_DEFAULT_ALLOW_NO_PASSWORD="no" # only used at build time
# PHPMYADMIN_ALLOW_NO_PASSWORD is deprecated in favor of DATABASE_ALLOW_NO_PASSWORD
DATABASE_ALLOW_NO_PASSWORD="${DATABASE_ALLOW_NO_PASSWORD:-"${PHPMYADMIN_ALLOW_NO_PASSWORD:-}"}"
export DATABASE_ALLOW_NO_PASSWORD="${DATABASE_ALLOW_NO_PASSWORD:-}"
export DATABASE_ENABLE_SSL="${DATABASE_ENABLE_SSL:-}"
export DATABASE_CERTS_DIR="${PHPMYADMIN_BASE_DIR}/db_certs"
export DATABASE_SSL_KEY="${DATABASE_SSL_KEY:-${DATABASE_CERTS_DIR}/server_key.pem}"
export DATABASE_SSL_CERT="${DATABASE_SSL_CERT:-${DATABASE_CERTS_DIR}/server_certificate.pem}"
export DATABASE_SSL_CA="${DATABASE_SSL_CA:-${DATABASE_CERTS_DIR}/ca_certificate.pem}"
export DATABASE_SSL_CA_PATH="${DATABASE_SSL_CA_PATH:-}"
export DATABASE_SSL_CIPHERS="${DATABASE_SSL_CIPHERS:-}"
export DATABASE_SSL_VERIFY="${DATABASE_SSL_VERIFY:-yes}"

# phpMyAdmin configuration storage
export CONFIGURATION_STORAGE_ENABLE="${CONFIGURATION_STORAGE_ENABLE:-no}"
export CONFIGURATION_STORAGE_DB_HOST="${CONFIGURATION_STORAGE_DB_HOST:-mariadb}"
export CONFIGURATION_STORAGE_DB_PORT_NUMBER="${CONFIGURATION_STORAGE_DB_PORT_NUMBER:-3306}"
export CONFIGURATION_STORAGE_DB_USER="${CONFIGURATION_STORAGE_DB_USER:-pma}"
export CONFIGURATION_STORAGE_DB_PASSWORD="${CONFIGURATION_STORAGE_DB_PASSWORD:-}"
export CONFIGURATION_STORAGE_DB_NAME="${CONFIGURATION_STORAGE_DB_NAME:-phpmyadmin}"
export CONFIGURATION_ALLOWDENY_ORDER="${CONFIGURATION_ALLOWDENY_ORDER:-}"
export CONFIGURATION_ALLOWDENY_RULES="${CONFIGURATION_ALLOWDENY_RULES:-}"

# PHP configuration defaults
export PHP_DEFAULT_UPLOAD_MAX_FILESIZE="80M" # only used at build time
export PHP_DEFAULT_POST_MAX_SIZE="80M" # only used at build time
export PHP_DEFAULT_MEMORY_LIMIT="256M" # only used at build time

# Custom environment variables may be defined below