Add WordPress Cron Manager with intelligent load distribution
Features: - Scan for all WordPress installations on server - Disable wp-cron for specific domain, user, or server-wide - Check wp-cron status for any domain or user - Automatic wp-config.php backups before changes - Intelligent cron job staggering to prevent load spikes Load Distribution: - Staggers cron times across 15-minute windows - Example with 300 sites: distributes across minutes 0-14 - Site 1: runs at 0,15,30,45 - Site 2: runs at 1,16,31,46 - Site 3: runs at 2,17,32,47 - ...continues up to minute 14, then wraps - Prevents all sites from running simultaneously - Uses user crontabs (not system cron) for proper permissions Technical Details: - Adds DISABLE_WP_CRON to wp-config.php - Creates user-specific crontab entries - Prevents duplicate cron jobs - Shows cron timing when adding jobs - Handles multiple WP installations per user
This commit is contained in:
cschantz
Executable
+463
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#!/bin/bash
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################################################################################
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# WordPress Cron Manager
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################################################################################
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# Purpose: Disable wp-cron and convert to real system cron jobs
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# Features:
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# - Detect all WordPress installations
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# - Disable DISABLE_WP_CRON in wp-config.php
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# - Add proper cron jobs for scheduled tasks
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# - Server-wide, per-user, or per-domain operations
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################################################################################
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
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source "$SCRIPT_DIR/lib/common-functions.sh"
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source "$SCRIPT_DIR/lib/system-detect.sh"
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if [ "$EUID" -ne 0 ]; then
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print_error "This script must be run as root"
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exit 1
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fi
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# Global counter for staggering cron times
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CRON_OFFSET=0
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# Function to generate staggered cron time
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# Distributes jobs across 15 minutes to avoid load spikes
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generate_staggered_cron() {
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local minute=$((CRON_OFFSET % 15))
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# Create pattern: 0,15,30,45 but offset by the calculated minute
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local minutes=""
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for base in 0 15 30 45; do
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local actual_minute=$(( (base + minute) % 60 ))
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if [ -z "$minutes" ]; then
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minutes="$actual_minute"
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else
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minutes="$minutes,$actual_minute"
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fi
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done
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# Increment offset for next site (wraps at 15)
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CRON_OFFSET=$((CRON_OFFSET + 1))
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echo "$minutes * * * *"
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}
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clear
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print_banner "WordPress Cron Manager"
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echo ""
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echo -e "${BOLD}What would you like to do?${NC}"
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echo ""
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echo " 1) Scan for WordPress installations"
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echo " 2) Disable wp-cron for specific domain"
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echo " 3) Disable wp-cron for specific user (all their WP sites)"
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echo " 4) Disable wp-cron server-wide (all WordPress sites)"
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echo " 5) Check wp-cron status for domain/user"
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echo " 0) Return to menu"
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echo ""
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echo -n "Select option [0]: "
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read -r choice
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choice="${choice:-0}"
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case "$choice" in
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1)
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# Scan for WordPress installations
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echo ""
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print_banner "WordPress Installation Scanner"
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echo ""
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echo "Scanning for WordPress installations..."
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echo ""
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# Find all wp-config.php files in home directories
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wp_sites=$(find /home/*/public_html -name "wp-config.php" -type f 2>/dev/null)
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if [ -z "$wp_sites" ]; then
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echo -e "${YELLOW}No WordPress installations found${NC}"
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else
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count=0
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echo -e "${BOLD}Found WordPress Installations:${NC}"
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echo ""
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while IFS= read -r config_file; do
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count=$((count + 1))
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# Extract info
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site_path=$(dirname "$config_file")
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user=$(echo "$site_path" | cut -d'/' -f3)
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# Try to find domain
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domain="(unknown domain)"
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if [ -f "/var/cpanel/userdata/$user/main" ]; then
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domain=$(grep -m1 "^servername:" "/var/cpanel/userdata/$user/main" 2>/dev/null | awk '{print $2}')
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fi
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# Check if wp-cron is disabled
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if grep -q "define.*DISABLE_WP_CRON.*true" "$config_file" 2>/dev/null; then
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status="${GREEN}✓ Disabled (using system cron)${NC}"
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else
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status="${YELLOW}⚠ Enabled (default wp-cron)${NC}"
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fi
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echo -e "${count}. ${BOLD}$domain${NC}"
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echo " Path: $site_path"
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echo " User: $user"
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echo " Status: $status"
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echo ""
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done <<< "$wp_sites"
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echo -e "${CYAN}Total WordPress installations: $count${NC}"
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fi
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;;
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2)
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# Disable wp-cron for specific domain
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echo ""
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echo -n "Enter domain name: "
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read -r domain
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if [ -z "$domain" ]; then
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print_error "Domain cannot be empty"
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press_enter
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exit 1
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fi
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# Find WordPress installation for this domain
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echo ""
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echo "Searching for WordPress installation for $domain..."
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# Try to find via cPanel user data
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wp_config=""
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for userdata_file in /var/cpanel/userdata/*/main; do
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if grep -q "^servername: $domain" "$userdata_file" 2>/dev/null; then
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user=$(basename "$(dirname "$userdata_file")")
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potential_config="/home/$user/public_html/wp-config.php"
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if [ -f "$potential_config" ]; then
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wp_config="$potential_config"
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break
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fi
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fi
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done
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if [ -z "$wp_config" ]; then
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print_error "WordPress installation not found for $domain"
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press_enter
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exit 1
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fi
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echo -e "${GREEN}Found WordPress:${NC} $wp_config"
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echo ""
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# Check if already disabled
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if grep -q "define.*DISABLE_WP_CRON.*true" "$wp_config" 2>/dev/null; then
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echo -e "${YELLOW}wp-cron is already disabled for this site${NC}"
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echo ""
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echo -n "Re-configure anyway? (y/n) [n]: "
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read -r confirm
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if [ "$confirm" != "y" ] && [ "$confirm" != "Y" ]; then
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press_enter
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exit 0
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fi
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fi
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# Backup wp-config.php
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cp "$wp_config" "${wp_config}.backup-$(date +%Y%m%d-%H%M%S)"
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echo -e "${GREEN}✓${NC} Backed up wp-config.php"
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# Add DISABLE_WP_CRON to wp-config.php
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if grep -q "DISABLE_WP_CRON" "$wp_config" 2>/dev/null; then
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# Replace existing
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sed -i "s/define.*DISABLE_WP_CRON.*/define('DISABLE_WP_CRON', true);/" "$wp_config"
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else
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# Add after opening PHP tag
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sed -i "/<?php/a define('DISABLE_WP_CRON', true);" "$wp_config"
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fi
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echo -e "${GREEN}✓${NC} Added DISABLE_WP_CRON to wp-config.php"
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# Add cron job with staggered timing
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site_path=$(dirname "$wp_config")
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cron_cmd="cd $site_path && /usr/bin/php -q wp-cron.php >/dev/null 2>&1"
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# Add to user's crontab
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user=$(echo "$site_path" | cut -d'/' -f3)
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# Check if cron job already exists
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if crontab -u "$user" -l 2>/dev/null | grep -q "$site_path.*wp-cron.php"; then
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echo -e "${YELLOW}⚠${NC} Cron job already exists for this site"
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else
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# Generate staggered cron time
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cron_time=$(generate_staggered_cron)
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(crontab -u "$user" -l 2>/dev/null; echo "$cron_time $cron_cmd") | crontab -u "$user" -
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echo -e "${GREEN}✓${NC} Added cron job ($cron_time)"
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fi
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echo ""
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print_success "WordPress cron converted to system cron for $domain"
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echo ""
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echo "Changes made:"
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echo " • DISABLE_WP_CRON set to true in wp-config.php"
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echo " • System cron job added (every 15 minutes)"
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echo " • Backup saved: ${wp_config}.backup-*"
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;;
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3)
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# Disable wp-cron for specific user
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echo ""
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echo -n "Enter cPanel username: "
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read -r target_user
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if [ -z "$target_user" ]; then
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print_error "Username cannot be empty"
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press_enter
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exit 1
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fi
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if [ ! -d "/home/$target_user" ]; then
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print_error "User $target_user does not exist"
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press_enter
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exit 1
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fi
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echo ""
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echo "Searching for WordPress installations for user: $target_user"
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echo ""
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wp_configs=$(find "/home/$target_user" -name "wp-config.php" -type f 2>/dev/null)
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if [ -z "$wp_configs" ]; then
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print_error "No WordPress installations found for $target_user"
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press_enter
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exit 1
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fi
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count=0
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echo "$wp_configs" | while IFS= read -r wp_config; do
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count=$((count + 1))
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site_path=$(dirname "$wp_config")
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echo -e "${BOLD}Site $count:${NC} $site_path"
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# Backup
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cp "$wp_config" "${wp_config}.backup-$(date +%Y%m%d-%H%M%S)"
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echo " • Backed up wp-config.php"
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# Disable wp-cron
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if grep -q "DISABLE_WP_CRON" "$wp_config" 2>/dev/null; then
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sed -i "s/define.*DISABLE_WP_CRON.*/define('DISABLE_WP_CRON', true);/" "$wp_config"
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else
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sed -i "/<?php/a define('DISABLE_WP_CRON', true);" "$wp_config"
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fi
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echo " • Disabled wp-cron in wp-config.php"
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# Add cron job with staggered timing
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cron_cmd="cd $site_path && /usr/bin/php -q wp-cron.php >/dev/null 2>&1"
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if ! crontab -u "$target_user" -l 2>/dev/null | grep -q "$site_path.*wp-cron.php"; then
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cron_time=$(generate_staggered_cron)
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(crontab -u "$target_user" -l 2>/dev/null; echo "$cron_time $cron_cmd") | crontab -u "$target_user" -
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echo " • Added cron job ($cron_time)"
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else
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echo " • Cron job already exists"
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fi
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echo ""
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done
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print_success "All WordPress sites for $target_user converted to system cron"
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;;
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4)
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# Server-wide conversion
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echo ""
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echo -e "${RED}${BOLD}WARNING: Server-Wide wp-cron Conversion${NC}"
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echo ""
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echo "This will:"
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echo " • Find ALL WordPress installations on the server"
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echo " • Disable wp-cron in each wp-config.php"
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echo " • Add system cron jobs for each user"
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echo ""
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echo -n "Are you sure? Type 'yes' to confirm: "
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read -r confirm
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if [ "$confirm" != "yes" ]; then
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echo "Cancelled"
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press_enter
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exit 0
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fi
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echo ""
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echo "Scanning entire server for WordPress installations..."
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echo ""
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total=0
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converted=0
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wp_configs=$(find /home/*/public_html -name "wp-config.php" -type f 2>/dev/null)
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if [ -z "$wp_configs" ]; then
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echo -e "${YELLOW}No WordPress installations found${NC}"
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press_enter
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exit 0
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fi
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while IFS= read -r wp_config; do
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total=$((total + 1))
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site_path=$(dirname "$wp_config")
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user=$(echo "$site_path" | cut -d'/' -f3)
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echo -e "${BOLD}Processing:${NC} $site_path (user: $user)"
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# Backup
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cp "$wp_config" "${wp_config}.backup-$(date +%Y%m%d-%H%M%S)" 2>/dev/null
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# Disable wp-cron
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if grep -q "DISABLE_WP_CRON" "$wp_config" 2>/dev/null; then
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sed -i "s/define.*DISABLE_WP_CRON.*/define('DISABLE_WP_CRON', true);/" "$wp_config" 2>/dev/null
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else
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sed -i "/<?php/a define('DISABLE_WP_CRON', true);" "$wp_config" 2>/dev/null
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fi
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# Add cron job with staggered timing
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cron_cmd="cd $site_path && /usr/bin/php -q wp-cron.php >/dev/null 2>&1"
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if ! crontab -u "$user" -l 2>/dev/null | grep -q "$site_path.*wp-cron.php"; then
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cron_time=$(generate_staggered_cron)
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(crontab -u "$user" -l 2>/dev/null; echo "$cron_time $cron_cmd") | crontab -u "$user" - 2>/dev/null
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echo " Cron: $cron_time"
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fi
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converted=$((converted + 1))
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echo -e "${GREEN}✓${NC} Converted"
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echo ""
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done <<< "$wp_configs"
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echo ""
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print_success "Server-wide conversion complete"
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echo ""
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echo "Summary:"
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echo " • Total WordPress sites found: $total"
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echo " • Successfully converted: $converted"
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;;
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5)
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# Check status
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echo ""
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echo "Check wp-cron status for:"
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echo " 1) Specific domain"
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echo " 2) Specific user"
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echo ""
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echo -n "Select [1]: "
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read -r check_choice
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check_choice="${check_choice:-1}"
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if [ "$check_choice" = "1" ]; then
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echo ""
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echo -n "Enter domain name: "
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read -r domain
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# Find WordPress for domain
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wp_config=""
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for userdata_file in /var/cpanel/userdata/*/main; do
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if grep -q "^servername: $domain" "$userdata_file" 2>/dev/null; then
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user=$(basename "$(dirname "$userdata_file")")
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potential_config="/home/$user/public_html/wp-config.php"
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if [ -f "$potential_config" ]; then
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wp_config="$potential_config"
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break
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||||||
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fi
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fi
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done
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||||||
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if [ -z "$wp_config" ]; then
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print_error "WordPress not found for $domain"
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||||||
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press_enter
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exit 1
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||||||
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fi
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||||||
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echo ""
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echo -e "${BOLD}WordPress Cron Status for $domain${NC}"
|
||||||
|
echo ""
|
||||||
|
echo "Config file: $wp_config"
|
||||||
|
echo ""
|
||||||
|
|
||||||
|
if grep -q "define.*DISABLE_WP_CRON.*true" "$wp_config" 2>/dev/null; then
|
||||||
|
echo -e "wp-cron: ${GREEN}DISABLED${NC} (using system cron)"
|
||||||
|
|
||||||
|
# Check for cron job
|
||||||
|
site_path=$(dirname "$wp_config")
|
||||||
|
user=$(echo "$site_path" | cut -d'/' -f3)
|
||||||
|
|
||||||
|
if crontab -u "$user" -l 2>/dev/null | grep -q "wp-cron.php"; then
|
||||||
|
echo -e "System cron: ${GREEN}CONFIGURED${NC}"
|
||||||
|
echo ""
|
||||||
|
echo "Cron jobs:"
|
||||||
|
crontab -u "$user" -l 2>/dev/null | grep "wp-cron.php"
|
||||||
|
else
|
||||||
|
echo -e "System cron: ${RED}NOT CONFIGURED${NC}"
|
||||||
|
fi
|
||||||
|
else
|
||||||
|
echo -e "wp-cron: ${YELLOW}ENABLED${NC} (default WordPress cron)"
|
||||||
|
echo ""
|
||||||
|
echo "Recommendation: Disable wp-cron and use system cron for better performance"
|
||||||
|
fi
|
||||||
|
|
||||||
|
else
|
||||||
|
echo ""
|
||||||
|
echo -n "Enter cPanel username: "
|
||||||
|
read -r check_user
|
||||||
|
|
||||||
|
if [ ! -d "/home/$check_user" ]; then
|
||||||
|
print_error "User $check_user does not exist"
|
||||||
|
press_enter
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
echo ""
|
||||||
|
echo -e "${BOLD}WordPress Cron Status for user: $check_user${NC}"
|
||||||
|
echo ""
|
||||||
|
|
||||||
|
wp_configs=$(find "/home/$check_user" -name "wp-config.php" -type f 2>/dev/null)
|
||||||
|
|
||||||
|
if [ -z "$wp_configs" ]; then
|
||||||
|
echo "No WordPress installations found"
|
||||||
|
else
|
||||||
|
count=0
|
||||||
|
while IFS= read -r wp_config; do
|
||||||
|
count=$((count + 1))
|
||||||
|
site_path=$(dirname "$wp_config")
|
||||||
|
|
||||||
|
echo -e "${count}. ${BOLD}$site_path${NC}"
|
||||||
|
|
||||||
|
if grep -q "define.*DISABLE_WP_CRON.*true" "$wp_config" 2>/dev/null; then
|
||||||
|
echo " wp-cron: ${GREEN}DISABLED${NC}"
|
||||||
|
else
|
||||||
|
echo " wp-cron: ${YELLOW}ENABLED${NC}"
|
||||||
|
fi
|
||||||
|
echo ""
|
||||||
|
done <<< "$wp_configs"
|
||||||
|
|
||||||
|
# Show cron jobs
|
||||||
|
echo -e "${BOLD}Cron Jobs:${NC}"
|
||||||
|
if crontab -u "$check_user" -l 2>/dev/null | grep -q "wp-cron.php"; then
|
||||||
|
crontab -u "$check_user" -l 2>/dev/null | grep "wp-cron.php"
|
||||||
|
else
|
||||||
|
echo " No wp-cron jobs found"
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
|
||||||
|
0)
|
||||||
|
exit 0
|
||||||
|
;;
|
||||||
|
|
||||||
|
*)
|
||||||
|
print_error "Invalid option"
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
echo ""
|
||||||
|
press_enter
|
||||||
Reference in New Issue
Block a user