#!/bin/bash

####################################################################################################
#### author: SlickStack ############################################################################
#### link: https://slickstack.io ###################################################################
#### mirror: http://mirrors.slickstack.io/bash/ss-install-php-config.txt ###########################
#### path: /var/www/ss-install-php-config ##########################################################
#### destination: n/a (not a boilerplate) ##########################################################
#### purpose: Reinstalls the PHP-FPM module config files based on ss-config (idempotent) ###########
#### module version: PHP-FPM 7.4.x #################################################################
#### sourced by: ss-install-php ####################################################################
#### bash aliases: ss install php config ###########################################################
####################################################################################################

## SS-CONFIG MUST BE PROPERLY CONFIGURED AND ON CURRENT BUILD BEFORE RUNNING SS-INSTALL ##
## ENSURE YOUR SS-CONFIG BUILD REMAINS CURRENT BY RUNNING SS-UPDATE OCCASIONALLY ##

## include SlickStack configuration ##
source /var/www/ss-config

## include SlickStack functions ##
source /var/www/ss-functions

####################################################################################################
#### SS-Install-PHP-Config: Message (Begin Script) #################################################
####################################################################################################

## this is a simple message that announces to the shell the purpose of this bash script ##
## it will only be noticed by sudo users who manually call ss core bash scripts ##

## echo message ##
echo -e "${PURPLE}Running ss-install-php-config: Reinstalls the PHP-FPM module config files based on ss-config (idempotent)... ${NOCOLOR}"
sleep "$SLEEP_MESSAGE_BEGIN"

####################################################################################################
#### SS-Install-PHP-Config: Cleanup Temporary Files ################################################
####################################################################################################

## delete tmp files ##
rm /tmp/php-fpm*
rm /tmp/php-ini*
rm /tmp/www*

####################################################################################################
#### SS-Install-PHP-Config: Install (Optimize) PHP-FPM Configuration Files #########################
####################################################################################################

## next we optimize the PHP-FPM configuration files based on settings from ss-config ##
## several common PHP settings are hardcoded to improve LEMP server stability ##

## download latest versions ##
wget -O "$TMP_PHP_FPM_CONF" "$MIRROR_PHP_FPM_CONF"
wget -O "$TMP_PHP_INI" "$MIRROR_PHP_INI"
wget -O "$TMP_WWW_CONF" "$MIRROR_WWW_CONF"

#################
#### PHP.ini ####
#################

## max execution time ##
if [[ -z "$PHP_MAX_EXECUTION_TIME" ]]; then 
    sed -i "s/@PHP_MAX_EXECUTION_TIME/60/g" /tmp/php.ini
else 
    sed -i "s/@PHP_MAX_EXECUTION_TIME/${PHP_MAX_EXECUTION_TIME}/g" /tmp/php.ini
fi

## max input time ##
if [[ -z "$PHP_MAX_INPUT_TIME" ]]; then 
    sed -i "s/@PHP_MAX_INPUT_TIME/60/g" /tmp/php.ini
else 
    sed -i "s/@PHP_MAX_INPUT_TIME/${PHP_MAX_INPUT_TIME}/g" /tmp/php.ini
fi

## memory limit ##
if [[ -z "$PHP_MEMORY_LIMIT" ]]; then 
    sed -i "s/@PHP_MEMORY_LIMIT/512M/g" /tmp/php.ini
else 
    sed -i "s/@PHP_MEMORY_LIMIT/${PHP_MEMORY_LIMIT}/g" /tmp/php.ini
fi

## max input vars ##
if [[ -z "$PHP_MAX_INPUT_VARS" ]]; then 
    sed -i "s/@PHP_MAX_INPUT_VARS/5000/g" /tmp/php.ini
else 
    sed -i "s/@PHP_MAX_INPUT_VARS/${PHP_MAX_INPUT_VARS}/g" /tmp/php.ini
fi

## max input nesting level ##
if [[ -z "$PHP_MAX_INPUT_NESTING_LEVEL" ]]; then 
    sed -i "s/@PHP_MAX_INPUT_NESTING_LEVEL/64/g" /tmp/php.ini
else 
    sed -i "s/@PHP_MAX_INPUT_NESTING_LEVEL/${PHP_MAX_INPUT_NESTING_LEVEL}/g" /tmp/php.ini
fi

## upload max filesize ##
if [[ -z "$PHP_UPLOAD_MAX_FILESIZE" ]]; then 
    sed -i "s/@PHP_UPLOAD_MAX_FILESIZE/512M/g" /tmp/php.ini
else 
    sed -i "s/@PHP_UPLOAD_MAX_FILESIZE/${PHP_UPLOAD_MAX_FILESIZE}/g" /tmp/php.ini
fi

## max file uploads ##
if [[ -z "$PHP_MAX_FILE_UPLOADS" ]]; then 
    sed -i "s/@PHP_MAX_FILE_UPLOADS/100/g" /tmp/php.ini
else 
    sed -i "s/@PHP_MAX_FILE_UPLOADS/${PHP_MAX_FILE_UPLOADS}/g" /tmp/php.ini
fi

## php precision ##
if [[ -z "$PHP_PRECISION" ]]; then 
    sed -i "s/@PHP_PRECISION/14/g" /tmp/php.ini
else 
    sed -i "s/@PHP_PRECISION/${PHP_PRECISION}/g" /tmp/php.ini
fi

## php output buffering ##
if [[ -z "$PHP_OUTPUT_BUFFERING" ]]; then 
    sed -i "s/@PHP_OUTPUT_BUFFERING/4096/g" /tmp/php.ini
else 
    sed -i "s/@PHP_OUTPUT_BUFFERING/${PHP_OUTPUT_BUFFERING}/g" /tmp/php.ini
fi

## php unserialize max depth ##
if [[ -z "$PHP_UNSERIALIZE_MAX_DEPTH" ]]; then 
    sed -i "s/@PHP_UNSERIALIZE_MAX_DEPTH/4096/g" /tmp/php.ini
else 
    sed -i "s/@PHP_UNSERIALIZE_MAX_DEPTH/${PHP_UNSERIALIZE_MAX_DEPTH}/g" /tmp/php.ini
fi

## php serialize precision ##
if [[ -z "$PHP_SERIALIZE_PRECISION" ]]; then 
    sed -i "s/@PHP_SERIALIZE_PRECISION/-1/g" /tmp/php.ini
else 
    sed -i "s/@PHP_SERIALIZE_PRECISION/${PHP_SERIALIZE_PRECISION}/g" /tmp/php.ini
fi

## php allow url fopen ##
if [[ -z "$PHP_ALLOW_URL_FOPEN" ]]; then 
    sed -i "s/@PHP_ALLOW_URL_FOPEN/On/g" /tmp/php.ini
elif [[ "$PHP_ALLOW_URL_FOPEN" == "true" ]]; then
    sed -i "s/@PHP_ALLOW_URL_FOPEN/On/g" /tmp/php.ini
elif [[ "$PHP_ALLOW_URL_FOPEN" == "On" ]]; then
    sed -i "s/@PHP_ALLOW_URL_FOPEN/On/g" /tmp/php.ini
elif [[ "$PHP_ALLOW_URL_FOPEN" == "false" ]]; then
    sed -i "s/@PHP_ALLOW_URL_FOPEN/Off/g" /tmp/php.ini
elif [[ "$PHP_ALLOW_URL_FOPEN" == "Off" ]]; then
    sed -i "s/@PHP_ALLOW_URL_FOPEN/Off/g" /tmp/php.ini
fi

## php default socket timeout ##
if [[ -z "$PHP_DEFAULT_SOCKET_TIMEOUT" ]]; then 
    sed -i "s/@PHP_DEFAULT_SOCKET_TIMEOUT/60/g" /tmp/php.ini
else 
    sed -i "s/@PHP_DEFAULT_SOCKET_TIMEOUT/${PHP_DEFAULT_SOCKET_TIMEOUT}/g" /tmp/php.ini
fi

## php post max size ##
if [[ -z "$PHP_POST_MAX_SIZE" ]]; then 
    sed -i "s/@PHP_POST_MAX_SIZE/512M/g" /tmp/php.ini
else 
    sed -i "s/@PHP_POST_MAX_SIZE/${PHP_POST_MAX_SIZE}/g" /tmp/php.ini
fi

## php disable classes ##
if [[ -z "$PHP_DISABLE_CLASSES" ]]; then 
    sed -i "s/@PHP_DISABLE_CLASSES//g" /tmp/php.ini
else 
    sed -i "s/@PHP_DISABLE_CLASSES/${PHP_DISABLE_CLASSES}/g" /tmp/php.ini
fi

## php disable functions ##
if [[ -z "$PHP_DISABLE_FUNCTIONS" ]]; then 
    sed -i "s/@PHP_DISABLE_FUNCTIONS//g" /tmp/php.ini
else 
    sed -i "s/@PHP_DISABLE_FUNCTIONS/${PHP_DISABLE_FUNCTIONS}/g" /tmp/php.ini
fi

## opcache huge code pages ##
if [[ -z "$OPCACHE_HUGE_CODE_PAGES" ]]; then 
    sed -i "s/@OPCACHE_HUGE_CODE_PAGES/0/g" /tmp/php.ini
elif [[ "$OPCACHE_HUGE_CODE_PAGES" == "true" ]]; then
    sed -i "s/@OPCACHE_HUGE_CODE_PAGES/1/g" /tmp/php.ini
elif [[ "$OPCACHE_HUGE_CODE_PAGES" == "On" ]]; then
    sed -i "s/@OPCACHE_HUGE_CODE_PAGES/1/g" /tmp/php.ini
elif [[ "$OPCACHE_HUGE_CODE_PAGES" == "false" ]]; then
    sed -i "s/@OPCACHE_HUGE_CODE_PAGES/0/g" /tmp/php.ini
elif [[ "$OPCACHE_HUGE_CODE_PAGES" == "Off" ]]; then
    sed -i "s/@OPCACHE_HUGE_CODE_PAGES/0/g" /tmp/php.ini
fi

## opcache revalidate frequency ##
if [[ -z "$OPCACHE_REVALIDATE_FREQUENCY" ]]; then 
    sed -i "s/@OPCACHE_REVALIDATE_FREQUENCY/2/g" /tmp/php.ini
else 
    sed -i "s/@OPCACHE_REVALIDATE_FREQUENCY/${OPCACHE_REVALIDATE_FREQUENCY}/g" /tmp/php.ini
fi

## opcache max wasted percentage ##
if [[ -z "$OPCACHE_MAX_WASTED_PERCENTAGE" ]]; then 
    sed -i "s/@OPCACHE_MAX_WASTED_PERCENTAGE/5/g" /tmp/php.ini
else 
    sed -i "s/@OPCACHE_MAX_WASTED_PERCENTAGE/${OPCACHE_MAX_WASTED_PERCENTAGE}/g" /tmp/php.ini
fi

## opcache max accelerated files ##
if [[ -z "$OPCACHE_MAX_ACCELERATED_FILES" ]]; then 
    sed -i "s/@OPCACHE_MAX_ACCELERATED_FILES/10000/g" /tmp/php.ini
else 
    sed -i "s/@OPCACHE_MAX_ACCELERATED_FILES/${OPCACHE_MAX_ACCELERATED_FILES}/g" /tmp/php.ini
fi

## opcache interned strings buffer ##
if [[ -z "$OPCACHE_INTERNED_STRINGS_BUFFER" ]]; then 
    sed -i "s/@OPCACHE_INTERNED_STRINGS_BUFFER/64/g" /tmp/php.ini
else 
    sed -i "s/@OPCACHE_INTERNED_STRINGS_BUFFER/${OPCACHE_INTERNED_STRINGS_BUFFER}/g" /tmp/php.ini
fi

## opcache memory consumption ##
if [[ -z "$OPCACHE_MEMORY_CONSUMPTION" ]]; then 
    sed -i "s/@OPCACHE_MEMORY_CONSUMPTION/256/g" /tmp/php.ini
else 
    sed -i "s/@OPCACHE_MEMORY_CONSUMPTION/${OPCACHE_MEMORY_CONSUMPTION}/g" /tmp/php.ini
fi

######################
#### PHP-FPM.conf ####
######################

## emerg restart threshold ##
if [[ -z "$FPM_EMERGENCY_RESTART_THRESHOLD" ]]; then 
    sed -i "s/@FPM_EMERGENCY_RESTART_THRESHOLD/10/g" /tmp/php-fpm.conf
else 
    sed -i "s/@FPM_EMERGENCY_RESTART_THRESHOLD/${FPM_EMERGENCY_RESTART_THRESHOLD}/g" /tmp/php-fpm.conf
fi

## emerg restart time ##
if [[ -z "$FPM_EMERGENCY_RESTART_INTERVAL" ]]; then 
    sed -i "s/@FPM_EMERGENCY_RESTART_INTERVAL/1m/g" /tmp/php-fpm.conf
else 
    sed -i "s/@FPM_EMERGENCY_RESTART_INTERVAL/${FPM_EMERGENCY_RESTART_INTERVAL}/g" /tmp/php-fpm.conf
fi

## process control timeout ##
if [[ -z "$FPM_PROCESS_CONTROL_TIMEOUT" ]]; then 
    sed -i "s/@FPM_PROCESS_CONTROL_TIMEOUT/10s/g" /tmp/php-fpm.conf
else 
    sed -i "s/@FPM_PROCESS_CONTROL_TIMEOUT/${FPM_PROCESS_CONTROL_TIMEOUT}/g" /tmp/php-fpm.conf
fi

## process max ##
if [[ -z "$FPM_PROCESS_MAX" ]]; then 
    sed -i "s/@FPM_PROCESS_MAX/128/g" /tmp/php-fpm.conf
else 
    sed -i "s/@FPM_PROCESS_MAX/${FPM_PROCESS_MAX}/g" /tmp/php-fpm.conf
fi

## process priority ##
if [[ -z "$FPM_PROCESS_PRIORITY" ]]; then 
    sed -i "s/@FPM_PROCESS_PRIORITY/-19/g" /tmp/php-fpm.conf
else 
    sed -i "s/@FPM_PROCESS_PRIORITY/${FPM_PROCESS_PRIORITY}/g" /tmp/php-fpm.conf
fi

## rlimit files ##
if [[ -z "$FPM_RLIMIT_FILES" ]]; then 
    sed -i "s/@FPM_RLIMIT_FILES/1024/g" /tmp/php-fpm.conf
else 
    sed -i "s/@FPM_RLIMIT_FILES/${FPM_RLIMIT_FILES}/g" /tmp/php-fpm.conf
fi

## rlimit core ##
if [[ -z "$FPM_RLIMIT_CORE" ]]; then 
    sed -i "s/@FPM_RLIMIT_CORE/0/g" /tmp/php-fpm.conf
else 
    sed -i "s/@FPM_RLIMIT_CORE/${FPM_RLIMIT_CORE}/g" /tmp/php-fpm.conf
fi

## systemd interval ##
if [[ -z "$FPM_SYSTEMD_INTERVAL" ]]; then 
    sed -i "s/@FPM_SYSTEMD_INTERVAL/10/g" /tmp/php-fpm.conf
else 
    sed -i "s/@FPM_SYSTEMD_INTERVAL/${FPM_SYSTEMD_INTERVAL}/g" /tmp/php-fpm.conf
fi

##################
#### WWW.conf ####
##################

## pool listen backlog ##
if [[ -z "$WWW_LISTEN_BACKLOG" ]]; then 
    sed -i "s/@WWW_LISTEN_BACKLOG/65535/g" /tmp/www.conf
else 
    sed -i "s/@WWW_LISTEN_BACKLOG/${WWW_LISTEN_BACKLOG}/g" /tmp/www.conf
fi

## pool type ##
if [[ -z "$WWW_PM_MODE" ]]; then 
    sed -i "s/@WWW_PM_MODE/ondemand/g" /tmp/www.conf
else 
    sed -i "s/@WWW_PM_MODE/${WWW_PM_MODE}/g" /tmp/www.conf
fi

## pool max children ##
if [[ -z "$WWW_PM_MAX_CHILDREN" ]]; then 
    sed -i "s/@WWW_PM_MAX_CHILDREN/20/g" /tmp/www.conf
else 
    sed -i "s/@WWW_PM_MAX_CHILDREN/${WWW_PM_MAX_CHILDREN}/g" /tmp/www.conf
fi

## pool start servers ##
if [[ -z "$WWW_PM_START_SERVERS" ]]; then 
    sed -i "s/@WWW_PM_START_SERVERS/2/g" /tmp/www.conf
else 
    sed -i "s/@WWW_PM_START_SERVERS/${WWW_PM_START_SERVERS}/g" /tmp/www.conf
fi

## pool min spare servers ##
if [[ -z "$WWW_PM_MIN_SPARE_SERVERS" ]]; then 
    sed -i "s/@WWW_PM_MIN_SPARE_SERVERS/1/g" /tmp/www.conf
else 
    sed -i "s/@WWW_PM_MIN_SPARE_SERVERS/${WWW_PM_MIN_SPARE_SERVERS}/g" /tmp/www.conf
fi

## pool max spare servers ##
if [[ -z "$WWW_PM_MAX_SPARE_SERVERS" ]]; then 
    sed -i "s/@WWW_PM_MAX_SPARE_SERVERS/3/g" /tmp/www.conf
else 
    sed -i "s/@WWW_PM_MAX_SPARE_SERVERS/${WWW_PM_MAX_SPARE_SERVERS}/g" /tmp/www.conf
fi

## pool process idle timeout ##
if [[ -z "$WWW_PM_PROCESS_IDLE_TIMEOUT" ]]; then 
    sed -i "s/@WWW_PM_PROCESS_IDLE_TIMEOUT/10s/g" /tmp/www.conf
else 
    sed -i "s/@WWW_PM_PROCESS_IDLE_TIMEOUT/${WWW_PM_PROCESS_IDLE_TIMEOUT}/g" /tmp/www.conf
fi

## pool max requests ##
if [[ -z "$WWW_PM_MAX_REQUESTS" ]]; then 
    sed -i "s/@WWW_PM_MAX_REQUESTS/500/g" /tmp/www.conf
else 
    sed -i "s/@WWW_PM_MAX_REQUESTS/${WWW_PM_MAX_REQUESTS}/g" /tmp/www.conf
fi

## pool request terminate timeout ##
if [[ -z "$WWW_REQUEST_TERMINATE_TIMEOUT" ]]; then 
    sed -i "s/@WWW_REQUEST_TERMINATE_TIMEOUT/300/g" /tmp/www.conf
else 
    sed -i "s/@WWW_REQUEST_TERMINATE_TIMEOUT/${WWW_REQUEST_TERMINATE_TIMEOUT}/g" /tmp/www.conf
fi

## pool rlimit files ##
if [[ -z "$WWW_RLIMIT_FILES" ]]; then 
    sed -i "s/@WWW_RLIMIT_FILES/65535/g" /tmp/www.conf
else 
    sed -i "s/@WWW_RLIMIT_FILES/${WWW_RLIMIT_FILES}/g" /tmp/www.conf
fi

## pool rlimit core ##
if [[ -z "$WWW_RLIMIT_CORE" ]]; then 
    sed -i "s/@WWW_RLIMIT_CORE/0/g" /tmp/www.conf
else 
    sed -i "s/@WWW_RLIMIT_CORE/${WWW_RLIMIT_CORE}/g" /tmp/www.conf
fi

####################################################################################################
#### SS-Install-PHP-Config: Copy Configuration Files To Destination (PHP-FPM) ######################
####################################################################################################

## delete? ##
## customize PHP settings ##
# sed -i '/error_log/c\error_log = /var/www/logs/error.log' /etc/php/7.4/fpm/php-fpm.conf

## copy files to destination ##
cp /tmp/php-fpm.conf /etc/php/7.4/fpm/php-fpm.conf
cp /tmp/php.ini /etc/php/7.4/fpm/php.ini
cp /tmp/php.ini /etc/php/7.4/cli/php.ini
cp /tmp/www.conf /etc/php/7.4/fpm/pool.d/www.conf

####################################################################################################
#### SS-Install-PHP-Config: Reset Permissions (PHP-FPM) ############################################
####################################################################################################

## run ss-perms-php-config ##
source "$PATH_SS_PERMS_PHP_CONFIG"

####################################################################################################
#### SS-Install-PHP-Config: Restart Services (PHP-FPM) #############################################
####################################################################################################

## restart services ##
source "$PATH_SS_RESTART_SERVICES_PHP"

####################################################################################################
#### SS-Install-PHP-Config: Cleanup Temporary Files ################################################
####################################################################################################

## delete tmp files ##
rm /tmp/php-fpm*
rm /tmp/php-ini*
rm /tmp/www*

####################################################################################################
#### SS-Install-PHP-Config: Touch Timestamp File (End Script) ######################################
####################################################################################################

## this is a dummy timestamp file that will remember the last time this script was run ##
## it can be useful for developer reference and is sometimes used by SlickStack ##

## script timestamp ##
touch "$TIMESTAMP_SS_INSTALL_PHP_CONFIG"

####################################################################################################
#### SlickStack: External References Used To Improve This Script (Thanks, Interwebz) ###############
####################################################################################################

## Ref:

## SS_EOF