app.py

import gradio as gr
import requests
from bs4 import BeautifulSoup
from urllib.parse import urljoin, urlparse
from fpdf import FPDF
import tempfile
import re
import logging

logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)

def clean_text(text):
    text = ''.join(char for char in text if char.isprintable())
    text = re.sub(r'[^\x00-\x7F]+', ' ', text)
    return text

def get_page_content(url):
    try:
        logger.info(f"Fetching content from: {url}")
        response = requests.get(url, timeout=10)
        response.raise_for_status()
        soup = BeautifulSoup(response.text, 'html.parser')
        content = []
        for tag in ['p', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'li']:
            for element in soup.find_all(tag):
                text = clean_text(element.get_text(strip=True))
                if text:
                    content.append(text)
        logger.info(f"Found {len(content)} content items for {url}")
        return content
    except Exception as e:
        logger.error(f"Error processing {url}: {str(e)}")
        return [f"Error processing {url}: {str(e)}"]

def get_subdirectory_pages(url, base_url, visited=set(), max_pages=100):
    if url in visited or len(visited) >= max_pages:
        return []
    
    visited.add(url)
    pages = [(url, get_page_content(url))]
    
    try:
        response = requests.get(url, timeout=10)
        response.raise_for_status()
        soup = BeautifulSoup(response.text, 'html.parser')
        
        for link in soup.find_all('a'):
            href = link.get('href')
            if href:
                full_url = urljoin(base_url, href)
                parsed_full_url = urlparse(full_url)
                parsed_base_url = urlparse(base_url)
                
                # Check if the URL is in the same directory or a direct subdirectory
                if (parsed_full_url.scheme == parsed_base_url.scheme and
                    parsed_full_url.netloc == parsed_base_url.netloc and
                    parsed_full_url.path.startswith(parsed_base_url.path) and
                    parsed_full_url.path.count('/') <= parsed_base_url.path.count('/') + 1):
                    
                    if full_url not in visited:
                        pages.extend(get_subdirectory_pages(full_url, base_url, visited, max_pages))
                        if len(visited) >= max_pages:
                            break
    except Exception as e:
        logger.error(f"Error processing {url}: {e}")
    
    return pages

def website_to_pdf(url):
    parsed_url = urlparse(url)
    base_url = f"{parsed_url.scheme}://{parsed_url.netloc}{parsed_url.path.rstrip('/')}/"
    logger.info(f"Starting to process: {base_url}")
    all_pages = get_subdirectory_pages(base_url, base_url)
    logger.info(f"Found {len(all_pages)} pages to process")
    
    pdf = FPDF()
    pdf.set_auto_page_break(auto=True, margin=15)
    pdf.add_page()
    pdf.set_font("Arial", size=12)

    for page_url, content in all_pages:
        pdf.cell(0, 10, txt=page_url, ln=True)
        pdf.ln(5)
        for text in content:
            pdf.multi_cell(0, 10, txt=text)
        pdf.add_page()

    with tempfile.NamedTemporaryFile(delete=False, suffix='.pdf') as tmp:
        pdf_path = tmp.name
        pdf.output(pdf_path)
        logger.info(f"PDF saved to: {pdf_path}")
    
    return pdf_path

def process_url(url):
    try:
        pdf_file = website_to_pdf(url)
        return pdf_file
    except Exception as e:
        logger.error(f"Error in process_url: {str(e)}")
        return f"An error occurred: {str(e)}"

iface = gr.Interface(
    fn=process_url,
    inputs=gr.Textbox(label="Enter website URL (e.g., https://www.gradio.app/docs/gradio)"),
    outputs=gr.File(label="Download PDF"),
    title="Website Subdirectory to PDF Converter",
    description="Enter a website URL to convert its subdirectories into a PDF."
)

if __name__ == "__main__":
    iface.launch()