app.py

# app.py
import gradio as gr
import requests
import time

def check_domains(domain_text):
    """
    Takes a string of domains (one per line), checks each one,
    and returns a formatted string with the results.
    """
    if not domain_text:
        return "Please enter at least one domain."

    domains = [d.strip() for d in domain_text.split('\n') if d.strip()]
    results = []

    for domain in domains:
        # Prepend http:// if no scheme is present, as requests needs it.
        if not domain.startswith(('http://', 'https://')):
            url = f"http://{domain}"
        else:
            url = domain
        
        try:
            start_time = time.time()
            # We use a timeout to prevent the app from hanging on unresponsive domains.
            response = requests.get(url, timeout=10, allow_redirects=True)
            end_time = time.time()
            
            response_time = round((end_time - start_time) * 1000) # Convert to milliseconds
            status_code = response.status_code
            
            # Check for a successful status code (2xx or 3xx for redirects)
            if 200 <= status_code < 400:
                results.append(f"✅ **{domain}** - `Status: {status_code}` - `Response Time: {response_time} ms`")
            else:
                results.append(f"⚠️ **{domain}** - `Status: {status_code}` - `Response Time: {response_time} ms` (Client/Server Error)")

        except requests.exceptions.Timeout:
            results.append(f"❌ **{domain}** - `Error: Request Timed Out`")
        except requests.exceptions.RequestException as e:
            results.append(f"❌ **{domain}** - `Error: Connection Failed` (Could not resolve host or other network issue)")
        except Exception as e:
            results.append(f"❌ **{domain}** - `An unexpected error occurred: {e}`")

    # Join the results into a single string with Markdown for formatting.
    return "\n\n".join(results)

# --- Gradio Interface Definition ---
# This creates the web UI for our function.
interface = gr.Interface(
    fn=check_domains,
    inputs=gr.Textbox(
        lines=10,
        placeholder="Enter domains, one per line...\ngoogle.com\nwhatsapp.com\nnonexistent-domain-12345.com",
        label="Domains to Check"
    ),
    outputs=gr.Markdown(label="Results"),
    title="Domain Network Response Checker",
    description="Enter one or more domain names below to check their HTTP status and response time from this Hugging Face Space. The check includes a 10-second timeout."
)

# Launch the web application
interface.launch()