Cloudflare Cache Purger

cloudflare-purge-everything.sh

#!/bin/bash

# Initialize variables
declare -a hostnames
api_key=""

# Function to display usage
usage() {
    echo "Usage: $0 --hostname domain1.com [--hostname domain2.com ...] [--api-key YOUR_API_KEY]"
    echo
    echo "Options:"
    echo "  --hostname   Domain name(s) to purge cache for (can be specified multiple times)"
    echo "  --api-key    Cloudflare API key (optional if CLOUDFLARE_API_KEY env variable is set)"
    exit 1
}

# Function to exit with error
die() {
    echo "Error: $1" >&2
    exit 1
}

# Parse command line arguments
while [[ $# -gt 0 ]]; do
    case $1 in
        --hostname)
            hostnames+=("$2")
            shift 2
            ;;
        --api-key)
            api_key="$2"
            shift 2
            ;;
        *)
            usage
            ;;
    esac
done

# Validate inputs
[[ ${#hostnames[@]} -eq 0 ]] && die "At least one hostname must be specified"

# Use environment variable if API key not provided
if [[ -z "$api_key" ]]; then
    [[ -z "$CLOUDFLARE_API_KEY" ]] && die "No API key provided and CLOUDFLARE_API_KEY environment variable is not set"
    api_key="$CLOUDFLARE_API_KEY"
fi

# Function to get zone ID for a hostname
get_zone_id() {
    local hostname="$1"
    local response

    response=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones?name=$hostname" \
        -H "Authorization: Bearer $api_key" \
        -H "Content-Type: application/json")

    # Check if the API call was successful
    if ! echo "$response" | jq -e '.success' >/dev/null; then
        echo "API_ERROR"
        return
    fi

    # Extract zone ID
    local zone_id
    zone_id=$(echo "$response" | jq -r '.result[0].id')

    # Check if zone ID was found
    if [[ "$zone_id" == "null" ]] || [[ -z "$zone_id" ]]; then
        echo "NOT_FOUND"
        return
    fi

    echo "$zone_id"
}

# Function to purge cache for a zone
purge_cache() {
    local zone_id="$1"
    local response

    response=$(curl -s -X POST "https://api.cloudflare.com/client/v4/zones/$zone_id/purge_cache" \
        -H "Authorization: Bearer $api_key" \
        -H "Content-Type: application/json" \
        --data '{"purge_everything":true}')

    # Check if the purge was successful
    if echo "$response" | jq -e '.success' >/dev/null; then
        return 0
    else
        return 1
    fi
}

# Main execution
echo "Starting cache purge process..."

# Check for jq dependency
command -v jq >/dev/null 2>&1 || die "jq is required but not installed"

# Process each hostname
failed=0
for hostname in "${hostnames[@]}"; do
    echo "Processing $hostname..."

    # Get zone ID
    zone_id=$(get_zone_id "$hostname")

    case "$zone_id" in
        API_ERROR)
            echo "Failed to retrieve zone ID for $hostname: API error"
            failed=1
            continue
            ;;
        NOT_FOUND)
            echo "Failed to retrieve zone ID for $hostname: Zone not found"
            failed=1
            continue
            ;;
        *)
            echo "Found zone ID: $zone_id"
            if purge_cache "$zone_id"; then
                echo "Successfully purged cache for $hostname"
            else
                echo "Failed to purge cache for $hostname"
                failed=1
            fi
            ;;
    esac
done

# Exit with appropriate status code
if [[ $failed -eq 1 ]]; then
    die "One or more operations failed"
else
    echo "All cache purge operations completed successfully"
    exit 0
fi