687 lines
21 KiB
Bash
Executable File
687 lines
21 KiB
Bash
Executable File
#!/bin/bash
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# Enhanced Website to PDF Converter
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# Supports both web crawling and local HTML processing
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# set -euo pipefail
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# Configuration
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readonly SCRIPT_NAME="$(basename "$0")"
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readonly VERSION="2.0"
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readonly MAX_DEPTH=2
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readonly MAX_PAGES=100
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readonly WEASYPRINT_TIMEOUT=120
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# Color codes for output
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readonly RED='\033[0;31m'
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readonly GREEN='\033[0;32m'
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readonly YELLOW='\033[1;33m'
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readonly BLUE='\033[0;34m'
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readonly NC='\033[0m' # No Color
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# Global variables
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TEMP_DIR=""
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KEEP_TEMP=0
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VERBOSE=0
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MODE=""
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SOURCE=""
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OUTPUT_PDF=""
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# Logging functions
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log_info() {
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echo -e "${BLUE}[INFO]${NC} $1"
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}
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log_success() {
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echo -e "${GREEN}[SUCCESS]${NC} $1"
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}
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log_warning() {
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echo -e "${YELLOW}[WARNING]${NC} $1"
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}
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log_error() {
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echo -e "${RED}[ERROR]${NC} $1" >&2
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}
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log_verbose() {
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if [ "$VERBOSE" -eq 1 ]; then
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echo -e "${BLUE}[VERBOSE]${NC} $1"
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fi
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}
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# Help function
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show_help() {
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cat << EOF
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$SCRIPT_NAME v$VERSION - Enhanced Website to PDF Converter
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USAGE:
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$SCRIPT_NAME web <start_url> <output_pdf> [options]
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$SCRIPT_NAME local <html_directory> <output_pdf> [options]
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MODES:
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web Crawl website starting from URL
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local Process locally saved HTML files
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ARGUMENTS:
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start_url Starting URL for web crawling
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html_directory Directory containing HTML files for local processing
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output_pdf Output PDF file path
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OPTIONS:
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--keep-temp Keep temporary files for debugging
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--verbose Enable verbose output
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--max-depth N Maximum crawling depth (default: $MAX_DEPTH)
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--max-pages N Maximum pages to crawl (default: $MAX_PAGES)
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--help Show this help message
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EXAMPLES:
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$SCRIPT_NAME web https://example.com/docs docs.pdf --verbose
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$SCRIPT_NAME local ./saved_website/ website.pdf --keep-temp
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$SCRIPT_NAME web https://en.wikipedia.org/wiki/Main_Page wiki.pdf --max-depth 1
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DEPENDENCIES:
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curl, weasyprint, pdfunite (poppler-utils)
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EOF
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}
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# Cleanup function
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cleanup_on_signal() {
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local exit_code=$?
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log_warning "Script interrupted, cleaning up..."
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if [ -n "$TEMP_DIR" ] && [ -d "$TEMP_DIR" ]; then
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rm -rf "$TEMP_DIR"
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log_verbose "Cleaned up temporary directory: $TEMP_DIR"
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fi
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exit $exit_code
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}
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# Manual cleanup function
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cleanup_temp() {
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if [ -n "$TEMP_DIR" ] && [ -d "$TEMP_DIR" ]; then
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if [ "$KEEP_TEMP" -eq 0 ]; then
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rm -rf "$TEMP_DIR"
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log_verbose "Cleaned up temporary directory: $TEMP_DIR"
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else
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log_info "Temporary directory preserved: $TEMP_DIR"
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fi
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fi
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}
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# Set up signal handlers for interruption only
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trap cleanup_on_signal INT TERM
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# Dependency check
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check_dependencies() {
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local missing_deps=()
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if [ "$MODE" = "web" ] && ! command -v curl &> /dev/null; then
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missing_deps+=("curl")
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fi
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if ! command -v weasyprint &> /dev/null; then
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missing_deps+=("weasyprint")
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fi
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if ! command -v pdfunite &> /dev/null; then
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missing_deps+=("pdfunite (poppler-utils)")
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fi
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if [ ${#missing_deps[@]} -gt 0 ]; then
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log_error "Missing dependencies: ${missing_deps[*]}"
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log_error "Please install the required packages and try again."
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exit 1
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fi
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}
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# Parse command line arguments
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parse_arguments() {
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if [ $# -lt 3 ]; then
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show_help
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exit 1
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fi
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MODE="$1"
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SOURCE="$2"
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OUTPUT_PDF="$3"
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shift 3
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# Validate mode
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if [ "$MODE" != "web" ] && [ "$MODE" != "local" ]; then
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log_error "Invalid mode: $MODE. Use 'web' or 'local'"
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exit 1
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fi
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# Parse options
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while [ $# -gt 0 ]; do
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case "$1" in
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--keep-temp)
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KEEP_TEMP=1
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;;
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--verbose)
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VERBOSE=1
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;;
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--max-depth)
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if [ $# -lt 2 ] || ! [[ "$2" =~ ^[0-9]+$ ]]; then
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log_error "--max-depth requires a numeric argument"
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exit 1
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fi
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MAX_DEPTH="$2"
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shift
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;;
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--max-pages)
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if [ $# -lt 2 ] || ! [[ "$2" =~ ^[0-9]+$ ]]; then
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log_error "--max-pages requires a numeric argument"
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exit 1
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fi
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MAX_PAGES="$2"
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shift
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;;
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--help)
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show_help
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exit 0
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;;
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*)
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log_error "Unknown option: $1"
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exit 1
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;;
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esac
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shift
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done
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}
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# Validate inputs
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validate_inputs() {
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if [ "$MODE" = "web" ]; then
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if ! [[ "$SOURCE" =~ ^https?:// ]]; then
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log_error "Invalid URL format: $SOURCE"
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exit 1
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fi
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elif [ "$MODE" = "local" ]; then
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if [ ! -d "$SOURCE" ]; then
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log_error "Directory not found: $SOURCE"
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exit 1
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fi
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SOURCE="$(realpath "$SOURCE")"
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fi
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# Check if output directory exists
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local output_dir="$(dirname "$OUTPUT_PDF")"
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if [ ! -d "$output_dir" ]; then
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log_error "Output directory does not exist: $output_dir"
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exit 1
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fi
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}
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# Initialize working environment
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init_environment() {
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TEMP_DIR=$(mktemp -d)
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log_verbose "Created temporary directory: $TEMP_DIR"
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# Create log files
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mkdir -p "$TEMP_DIR/logs"
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touch "$TEMP_DIR/logs/crawl_errors.log"
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touch "$TEMP_DIR/logs/weasyprint_errors.log"
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touch "$TEMP_DIR/logs/processing.log"
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}
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# URL normalization functions (for web mode)
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normalize_url() {
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local url="$1"
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local base_url="$2"
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local current_url="$3"
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if [[ "$url" =~ ^/ ]]; then
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url="$base_url$url"
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elif [[ ! "$url" =~ ^https?:// ]]; then
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url=$(echo "$url" | sed 's|^\./||')
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local current_dir="$(dirname "$current_url" | sed "s|^$base_url||")"
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url="$base_url$current_dir/$url"
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fi
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# Clean up URL
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url=$(echo "$url" | sed 's/#.*$//; s|/$||; s/\?.*$//')
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echo "$url"
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}
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url_to_filepath() {
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local url="$1"
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local base_url="$2"
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local domain="$3"
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local path=$(echo "$url" | sed "s|^$base_url/||; s|/$||; s|/|_|g")
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if [ -z "$path" ]; then
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path="index"
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fi
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echo "$TEMP_DIR/$domain/$path.html"
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}
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calculate_depth() {
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local url="$1"
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local path=$(echo "$url" | sed "s|^https\?://[^/]*||; s|^/||; s|/$||")
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if [ -z "$path" ]; then
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echo 0
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else
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echo "$path" | awk -F'/' '{print NF}'
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fi
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}
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# Web crawling function
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crawl_website() {
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local start_url="$SOURCE"
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local domain=$(echo "$start_url" | grep -oE '(https?://[^/]+)' | sed 's|https\?://||')
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local base_url=$(echo "$start_url" | grep -oE 'https?://[^/]+')
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log_info "Starting web crawl from: $start_url"
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log_info "Domain: $domain, Max depth: $MAX_DEPTH, Max pages: $MAX_PAGES"
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local queue_file="$TEMP_DIR/queue.txt"
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local visited_file="$TEMP_DIR/visited.txt"
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local crawl_log="$TEMP_DIR/logs/crawl_errors.log"
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echo "$start_url" > "$queue_file"
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touch "$visited_file"
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mkdir -p "$TEMP_DIR/$domain"
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local page_count=0
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while [ -s "$queue_file" ] && [ "$page_count" -lt "$MAX_PAGES" ]; do
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local current_url=$(head -n 1 "$queue_file")
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sed -i '1d' "$queue_file"
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if grep -Fx "$current_url" "$visited_file" >/dev/null; then
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log_verbose "Skipping already visited: $current_url"
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continue
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fi
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echo "$current_url" >> "$visited_file"
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local depth=$(calculate_depth "$current_url")
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log_verbose "Processing $current_url (depth $depth)"
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if [ "$depth" -gt "$MAX_DEPTH" ]; then
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log_verbose "Skipping (depth $depth > $MAX_DEPTH): $current_url"
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continue
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fi
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local file_path=$(url_to_filepath "$current_url" "$base_url" "$domain")
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log_verbose "Downloading $current_url to $file_path"
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if curl -s -L --fail --retry 3 --retry-delay 2 --max-time 30 "$current_url" > "$file_path" 2>> "$crawl_log"; then
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((page_count++))
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log_info "Crawled page $page_count: $current_url"
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# Extract and process links
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local links=$(grep -o '<a[^>]*href=["\047][^"\047]*["\047]' "$file_path" 2>/dev/null | sed 's/.*href=["\047]\([^"\047]*\)["\047].*/\1/' | sort -u)
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for link in $links; do
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if [ -z "$link" ] || [[ "$link" =~ ^(javascript:|mailto:|#|data:) ]]; then
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continue
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fi
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local normalized_link=$(normalize_url "$link" "$base_url" "$current_url")
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if [[ "$normalized_link" =~ ^https?://$domain ]]; then
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local local_path=$(url_to_filepath "$normalized_link" "$base_url" "$domain")
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local relative_path=$(realpath --relative-to="$(dirname "$file_path")" "$local_path" 2>/dev/null || echo "$local_path")
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# Update link in HTML file
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local escaped_link=$(echo "$link" | sed 's/[&]/\\&/g; s/[[\.*^$(){}+?|\\]/\\&/g')
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sed -i "s|href=[\"']${escaped_link}[\"']|href=\"$relative_path\"|g" "$file_path" 2>> "$crawl_log"
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if ! grep -Fx "$normalized_link" "$visited_file" >/dev/null; then
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echo "$normalized_link" >> "$queue_file"
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log_verbose "Queued: $normalized_link"
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fi
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fi
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done
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else
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log_warning "Failed to download $current_url"
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fi
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done
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log_success "Crawled $page_count pages"
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}
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# Local HTML processing function
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process_local_html() {
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local html_dir="$SOURCE"
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log_info "Processing local HTML files from: $html_dir"
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# Find all HTML files recursively
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local html_files=()
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while IFS= read -r -d '' file; do
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html_files+=("$file")
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done < <(find "$html_dir" -type f \( -name "*.html" -o -name "*.htm" \) -print0)
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if [ ${#html_files[@]} -eq 0 ]; then
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log_error "No HTML files found in $html_dir"
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exit 1
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fi
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log_info "Found ${#html_files[@]} HTML files"
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# Copy HTML files to temp directory, maintaining structure
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local temp_html_dir="$TEMP_DIR/html"
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mkdir -p "$temp_html_dir"
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for html_file in "${html_files[@]}"; do
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local rel_path=$(realpath --relative-to="$html_dir" "$html_file")
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local dest_path="$temp_html_dir/$rel_path"
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local dest_dir=$(dirname "$dest_path")
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mkdir -p "$dest_dir"
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cp "$html_file" "$dest_path"
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log_verbose "Copied: $rel_path"
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done
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# Also copy any associated assets (CSS, JS, images)
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local asset_extensions=("css" "js" "png" "jpg" "jpeg" "gif" "svg" "ico" "woff" "woff2" "ttf" "eot")
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for ext in "${asset_extensions[@]}"; do
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while IFS= read -r -d '' file; do
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local rel_path=$(realpath --relative-to="$html_dir" "$file")
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local dest_path="$temp_html_dir/$rel_path"
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local dest_dir=$(dirname "$dest_path")
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mkdir -p "$dest_dir"
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cp "$file" "$dest_path"
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log_verbose "Copied asset: $rel_path"
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done < <(find "$html_dir" -type f -name "*.${ext}" -print0 2>/dev/null)
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done
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log_success "Processed local HTML files"
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}
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# Try alternative conversion for problematic files
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try_alternative_conversion() {
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local html_file="$1"
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local pdf_file="$2"
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local html_dir="$3"
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local weasyprint_log="$4"
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log_verbose "Trying alternative conversion for $(basename "$html_file")"
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# Try with simpler options (no base URL, different media type)
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if timeout 30 weasyprint \
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--media-type screen \
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--pdf-version 1.4 \
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"$html_file" "$pdf_file" 2>> "$weasyprint_log"; then
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return 0
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fi
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# Try with minimal options
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if timeout 30 weasyprint \
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"$html_file" "$pdf_file" 2>> "$weasyprint_log"; then
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return 0
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fi
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return 1
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}
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# PDF generation function
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generate_pdfs() {
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local html_files=()
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local pdf_files=()
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# Find HTML files in temp directory
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while IFS= read -r -d '' file; do
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html_files+=("$file")
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done < <(find "$TEMP_DIR" -type f \( -name "*.html" -o -name "*.htm" \) -print0)
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if [ ${#html_files[@]} -eq 0 ]; then
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log_error "No HTML files found for PDF generation"
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exit 1
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fi
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# Sort files for consistent processing order
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IFS=$'\n' html_files=($(sort <<<"${html_files[*]}"))
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unset IFS
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log_info "Converting ${#html_files[@]} HTML files to PDF"
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local success_count=0
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local failed_count=0
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local current_file=0
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local weasyprint_log="$TEMP_DIR/logs/weasyprint_errors.log"
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for html_file in "${html_files[@]}"; do
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((current_file++))
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local html_dir=$(dirname "$html_file")
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local pdf_file="${html_file%.html}.pdf"
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pdf_file="${pdf_file%.htm}.pdf"
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local filename=$(basename "$html_file")
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log_info "[$current_file/${#html_files[@]}] Converting $filename to PDF..."
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local start_time=$(date +%s)
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log_verbose "Running WeasyPrint on: $html_file"
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if timeout "$WEASYPRINT_TIMEOUT" weasyprint \
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--base-url "file://$html_dir/" \
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--media-type print \
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--pdf-version 1.7 \
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--verbose \
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"$html_file" "$pdf_file" 2>> "$weasyprint_log"; then
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local end_time=$(date +%s)
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local duration=$((end_time - start_time))
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if [ -f "$pdf_file" ] && [ -s "$pdf_file" ]; then
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pdf_files+=("$pdf_file")
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((success_count++))
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log_success "✓ $filename converted successfully (${duration}s)"
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else
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log_warning "✗ $filename: PDF file is empty or missing"
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((failed_count++))
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fi
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else
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local end_time=$(date +%s)
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local duration=$((end_time - start_time))
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if [ $duration -ge $WEASYPRINT_TIMEOUT ]; then
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log_warning "✗ $filename: Conversion timed out after ${WEASYPRINT_TIMEOUT}s"
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else
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log_warning "✗ $filename: Conversion failed (${duration}s)"
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fi
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# Try alternative conversion
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if try_alternative_conversion "$html_file" "$pdf_file" "$html_dir" "$weasyprint_log"; then
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if [ -f "$pdf_file" ] && [ -s "$pdf_file" ]; then
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pdf_files+=("$pdf_file")
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((success_count++))
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log_success "✓ $filename converted with alternative method"
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else
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((failed_count++))
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fi
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else
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((failed_count++))
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fi
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fi
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# Show progress
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if [ $((current_file % 10)) -eq 0 ] || [ $current_file -eq ${#html_files[@]} ]; then
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log_info "Progress: $current_file/${#html_files[@]} (Success: $success_count, Failed: $failed_count)"
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fi
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done
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if [ ${#pdf_files[@]} -eq 0 ]; then
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log_error "No PDFs were generated successfully"
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exit 1
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fi
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log_success "Generated $success_count PDFs successfully"
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if [ $failed_count -gt 0 ]; then
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log_warning "$failed_count files failed to convert"
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fi
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# Merge PDFs
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log_info "Merging ${#pdf_files[@]} PDFs into $OUTPUT_PDF..."
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if pdfunite "${pdf_files[@]}" "$OUTPUT_PDF" 2>> "$TEMP_DIR/logs/processing.log"; then
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log_success "Successfully created $OUTPUT_PDF"
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if command -v du &> /dev/null; then
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local file_size=$(du -h "$OUTPUT_PDF" | cut -f1)
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log_info "Final PDF size: $file_size"
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fi
|
|
else
|
|
log_error "Failed to merge PDFs"
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
# Copy debug files
|
|
copy_debug_files() {
|
|
local debug_files=(
|
|
"crawl_errors.log"
|
|
"weasyprint_errors.log"
|
|
"processing.log"
|
|
)
|
|
|
|
for file in "${debug_files[@]}"; do
|
|
if [ -f "$TEMP_DIR/logs/$file" ]; then
|
|
cp "$TEMP_DIR/logs/$file" "./$file"
|
|
fi
|
|
done
|
|
|
|
# Copy other useful files
|
|
if [ -f "$TEMP_DIR/queue.txt" ]; then
|
|
cp "$TEMP_DIR/queue.txt" "./queue.log"
|
|
fi
|
|
|
|
if [ -f "$TEMP_DIR/visited.txt" ]; then
|
|
cp "$TEMP_DIR/visited.txt" "./visited.log"
|
|
fi
|
|
|
|
log_info "Debug files saved to current directory"
|
|
}
|
|
|
|
# Main function
|
|
main() {
|
|
log_info "$SCRIPT_NAME v$VERSION starting..."
|
|
|
|
parse_arguments "$@"
|
|
validate_inputs
|
|
check_dependencies
|
|
init_environment
|
|
|
|
if [ "$MODE" = "web" ]; then
|
|
crawl_website
|
|
elif [ "$MODE" = "local" ]; then
|
|
process_local_html
|
|
fi
|
|
|
|
generate_pdfs
|
|
copy_debug_files
|
|
cleanup_temp
|
|
|
|
log_success "Process completed successfully!"
|
|
log_info "Output: $OUTPUT_PDF"
|
|
|
|
# Sort files for consistent processing order
|
|
IFS=$'\n' html_files=($(sort <<<"${html_files[*]}"))
|
|
unset IFS
|
|
log_info "Converting ${#html_files[@]} HTML files to PDF"
|
|
|
|
local success_count=0
|
|
local failed_count=0
|
|
local current_file=0
|
|
local weasyprint_log="$TEMP_DIR/logs/weasyprint_errors.log"
|
|
|
|
for html_file in "${html_files[@]}"; do
|
|
((current_file++))
|
|
local html_dir=$(dirname "$html_file")
|
|
local pdf_file="${html_file%.html}.pdf"
|
|
pdf_file="${pdf_file%.htm}.pdf"
|
|
local filename=$(basename "$html_file")
|
|
|
|
log_info "[$current_file/${#html_files[@]}] Converting $filename to PDF..."
|
|
|
|
# Add progress indicators and better error handling
|
|
local start_time=$(date +%s)
|
|
|
|
if timeout "$WEASYPRINT_TIMEOUT" weasyprint \
|
|
--base-url "file://$html_dir/" \
|
|
--media-type print \
|
|
--pdf-version 1.7 \
|
|
--verbose \
|
|
"$html_file" "$pdf_file" 2>> "$weasyprint_log"; then
|
|
|
|
local end_time=$(date +%s)
|
|
local duration=$((end_time - start_time))
|
|
|
|
if [ -f "$pdf_file" ] && [ -s "$pdf_file" ]; then
|
|
pdf_files+=("$pdf_file")
|
|
((success_count++))
|
|
log_success "✓ $filename converted successfully (${duration}s)"
|
|
else
|
|
log_warning "✗ $filename: PDF file is empty or missing"
|
|
((failed_count++))
|
|
fi
|
|
else
|
|
local end_time=$(date +%s)
|
|
local duration=$((end_time - start_time))
|
|
|
|
if [ $duration -ge $WEASYPRINT_TIMEOUT ]; then
|
|
log_warning "✗ $filename: Conversion timed out after ${WEASYPRINT_TIMEOUT}s"
|
|
else
|
|
log_warning "✗ $filename: Conversion failed (${duration}s)"
|
|
fi
|
|
|
|
# Try alternative conversion method
|
|
log_verbose "Attempting alternative conversion for $filename"
|
|
if try_alternative_conversion "$html_file" "$pdf_file" "$html_dir" "$weasyprint_log"; then
|
|
if [ -f "$pdf_file" ] && [ -s "$pdf_file" ]; then
|
|
pdf_files+=("$pdf_file")
|
|
((success_count++))
|
|
log_success "✓ $filename converted with alternative method"
|
|
else
|
|
((failed_count++))
|
|
fi
|
|
else
|
|
((failed_count++))
|
|
fi
|
|
|
|
# Log the last few lines of the error for this file
|
|
echo "=== Error for $filename ===" >> "$weasyprint_log"
|
|
tail -n 10 "$weasyprint_log" >> "$weasyprint_log"
|
|
fi
|
|
|
|
# Show progress
|
|
if [ $((current_file % 10)) -eq 0 ] || [ $current_file -eq ${#html_files[@]} ]; then
|
|
log_info "Progress: $current_file/${#html_files[@]} files processed (Success: $success_count, Failed: $failed_count)"
|
|
fi
|
|
done
|
|
|
|
if [ ${#pdf_files[@]} -eq 0 ]; then
|
|
log_error "No PDFs were generated successfully"
|
|
log_error "Check weasyprint_errors.log for details"
|
|
exit 1
|
|
fi
|
|
|
|
log_success "Generated $success_count PDFs successfully"
|
|
if [ $failed_count -gt 0 ]; then
|
|
log_warning "$failed_count files failed to convert"
|
|
fi
|
|
|
|
# Merge PDFs
|
|
log_info "Merging ${#pdf_files[@]} PDFs into $OUTPUT_PDF..."
|
|
|
|
if pdfunite "${pdf_files[@]}" "$OUTPUT_PDF" 2>> "$TEMP_DIR/logs/processing.log"; then
|
|
log_success "Successfully created $OUTPUT_PDF"
|
|
|
|
# Show final file info
|
|
if command -v du &> /dev/null; then
|
|
local file_size=$(du -h "$OUTPUT_PDF" | cut -f1)
|
|
log_info "Final PDF size: $file_size"
|
|
fi
|
|
else
|
|
log_error "Failed to merge PDFs"
|
|
log_error "Check processing.log for details"
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
# Run main function with all arguments
|
|
main "$@"
|