import os
import re
from http import HTTPStatus
from typing import Dict, List, Optional, Tuple
import base64
import mimetypes
import PyPDF2
import docx
import cv2
import numpy as np
from PIL import Image
import pytesseract
import requests
from urllib.parse import urlparse, urljoin
from bs4 import BeautifulSoup
import html2text
import json
import time
import webbrowser
import urllib.parse
import copy
import html
import gradio as gr
from huggingface_hub import InferenceClient
from tavily import TavilyClient
from huggingface_hub import HfApi
import tempfile
from openai import OpenAI
from mistralai import Mistral
# Gradio supported languages for syntax highlighting
GRADIO_SUPPORTED_LANGUAGES = [
"python", "c", "cpp", "markdown", "latex", "json", "html", "css", "javascript", "jinja2", "typescript", "yaml", "dockerfile", "shell", "r", "sql", "sql-msSQL", "sql-mySQL", "sql-mariaDB", "sql-sqlite", "sql-cassandra", "sql-plSQL", "sql-hive", "sql-pgSQL", "sql-gql", "sql-gpSQL", "sql-sparkSQL", "sql-esper", None
]
def get_gradio_language(language):
return language if language in GRADIO_SUPPORTED_LANGUAGES else None
# Search/Replace Constants
SEARCH_START = "<<<<<<< SEARCH"
DIVIDER = "======="
REPLACE_END = ">>>>>>> REPLACE"
# Configuration
HTML_SYSTEM_PROMPT = """ONLY USE HTML, CSS AND JAVASCRIPT. If you want to use ICON make sure to import the library first. Try to create the best UI possible by using only HTML, CSS and JAVASCRIPT. MAKE IT RESPONSIVE USING MODERN CSS. Use as much as you can modern CSS for the styling, if you can't do something with modern CSS, then use custom CSS. Also, try to elaborate as much as you can, to create something unique. ALWAYS GIVE THE RESPONSE INTO A SINGLE HTML FILE
For website redesign tasks:
- Use the provided original HTML code as the starting point for redesign
- Preserve all original content, structure, and functionality
- Keep the same semantic HTML structure but enhance the styling
- Reuse all original images and their URLs from the HTML code
- Create a modern, responsive design with improved typography and spacing
- Use modern CSS frameworks and design patterns
- Ensure accessibility and mobile responsiveness
- Maintain the same navigation and user flow
- Enhance the visual design while keeping the original layout structure
If an image is provided, analyze it and use the visual information to better understand the user's requirements.
Always respond with code that can be executed or rendered directly.
Always output only the HTML code inside a ```html ... ``` code block, and do not include any explanations or extra text. Do NOT add the language name at the top of the code output."""
TRANSFORMERS_JS_SYSTEM_PROMPT = """You are an expert web developer creating a transformers.js application. You will generate THREE separate files: index.html, index.js, and style.css.
IMPORTANT: You MUST output ALL THREE files in the following format:
```html
```
```javascript
// index.js content here
```
```css
/* style.css content here */
```
Requirements:
1. Create a modern, responsive web application using transformers.js
2. Use the transformers.js library for AI/ML functionality
3. Create a clean, professional UI with good user experience
4. Make the application fully responsive for mobile devices
5. Use modern CSS practices and JavaScript ES6+ features
6. Include proper error handling and loading states
7. Follow accessibility best practices
The index.html should contain the basic HTML structure and link to the CSS and JS files.
The index.js should contain all the JavaScript logic including transformers.js integration.
The style.css should contain all the styling for the application.
Always output only the three code blocks as shown above, and do not include any explanations or extra text."""
SVELTE_SYSTEM_PROMPT = """You are an expert Svelte developer creating a modern Svelte application. You will generate ONLY the custom files that need user-specific content for the user's requested application.
IMPORTANT: You MUST output files in the following format. Generate ONLY the files needed for the user's specific request:
```svelte
```
```css
/* src/app.css content here */
```
If you need additional components for the user's specific app, add them like:
```svelte
```
Requirements:
1. Create a modern, responsive Svelte application based on the user's specific request
2. Use TypeScript for better type safety
3. Create a clean, professional UI with good user experience
4. Make the application fully responsive for mobile devices
5. Use modern CSS practices and Svelte best practices
6. Include proper error handling and loading states
7. Follow accessibility best practices
8. Use Svelte's reactive features effectively
9. Include proper component structure and organization
10. Generate ONLY components that are actually needed for the user's requested application
Files you should generate:
- src/App.svelte: Main application component (ALWAYS required)
- src/app.css: Global styles (ALWAYS required)
- src/lib/[ComponentName].svelte: Additional components (ONLY if needed for the user's specific app)
The other files (index.html, package.json, vite.config.ts, tsconfig files, svelte.config.js, src/main.ts, src/vite-env.d.ts) are provided by the Svelte template and don't need to be generated.
Always output only the two code blocks as shown above, and do not include any explanations or extra text."""
SVELTE_SYSTEM_PROMPT_WITH_SEARCH = """You are an expert Svelte developer creating a modern Svelte application. You have access to real-time web search. When needed, use web search to find the latest information, best practices, or specific Svelte technologies.
You will generate ONLY the custom files that need user-specific content.
IMPORTANT: You MUST output ONLY the custom files in the following format:
```svelte
```
```css
/* src/app.css content here -->
```
Requirements:
1. Create a modern, responsive Svelte application
2. Use TypeScript for better type safety
3. Create a clean, professional UI with good user experience
4. Make the application fully responsive for mobile devices
5. Use modern CSS practices and Svelte best practices
6. Include proper error handling and loading states
7. Follow accessibility best practices
8. Use Svelte's reactive features effectively
9. Include proper component structure and organization
10. Use web search to find the latest Svelte patterns, libraries, and best practices
The files you generate are:
- src/App.svelte: Main application component (your custom app logic)
- src/app.css: Global styles (your custom styling)
The other files (index.html, package.json, vite.config.ts, tsconfig files, svelte.config.js, src/main.ts, src/vite-env.d.ts) are provided by the Svelte template and don't need to be generated.
Always output only the two code blocks as shown above, and do not include any explanations or extra text."""
TRANSFORMERS_JS_SYSTEM_PROMPT_WITH_SEARCH = """You are an expert web developer creating a transformers.js application. You have access to real-time web search. When needed, use web search to find the latest information, best practices, or specific technologies for transformers.js.
You will generate THREE separate files: index.html, index.js, and style.css.
IMPORTANT: You MUST output ALL THREE files in the following format:
```html
```
```javascript
// index.js content here
```
```css
/* style.css content here */
```
Requirements:
1. Create a modern, responsive web application using transformers.js
2. Use the transformers.js library for AI/ML functionality
3. Use web search to find current best practices and latest transformers.js features
4. Create a clean, professional UI with good user experience
5. Make the application fully responsive for mobile devices
6. Use modern CSS practices and JavaScript ES6+ features
7. Include proper error handling and loading states
8. Follow accessibility best practices
The index.html should contain the basic HTML structure and link to the CSS and JS files.
The index.js should contain all the JavaScript logic including transformers.js integration.
The style.css should contain all the styling for the application.
Always output only the three code blocks as shown above, and do not include any explanations or extra text."""
GENERIC_SYSTEM_PROMPT = """You are an expert {language} developer. Write clean, idiomatic, and runnable {language} code for the user's request. If possible, include comments and best practices. Output ONLY the code inside a ``` code block, and do not include any explanations or extra text. If the user provides a file or other context, use it as a reference. If the code is for a script or app, make it as self-contained as possible. Do NOT add the language name at the top of the code output."""
# System prompt with search capability
HTML_SYSTEM_PROMPT_WITH_SEARCH = """ONLY USE HTML, CSS AND JAVASCRIPT. If you want to use ICON make sure to import the library first. Try to create the best UI possible by using only HTML, CSS and JAVASCRIPT. MAKE IT RESPONSIVE USING MODERN CSS. Use as much as you can modern CSS for the styling, if you can't do something with modern CSS, then use custom CSS. Also, try to elaborate as much as you can, to create something unique. ALWAYS GIVE THE RESPONSE INTO A SINGLE HTML FILE
You have access to real-time web search. When needed, use web search to find the latest information, best practices, or specific technologies.
For website redesign tasks:
- Use the provided original HTML code as the starting point for redesign
- Preserve all original content, structure, and functionality
- Keep the same semantic HTML structure but enhance the styling
- Reuse all original images and their URLs from the HTML code
- Use web search to find current design trends and best practices for the specific type of website
- Create a modern, responsive design with improved typography and spacing
- Use modern CSS frameworks and design patterns
- Ensure accessibility and mobile responsiveness
- Maintain the same navigation and user flow
- Enhance the visual design while keeping the original layout structure
If an image is provided, analyze it and use the visual information to better understand the user's requirements.
Always respond with code that can be executed or rendered directly.
Always output only the HTML code inside a ```html ... ``` code block, and do not include any explanations or extra text. Do NOT add the language name at the top of the code output."""
GENERIC_SYSTEM_PROMPT_WITH_SEARCH = """You are an expert {language} developer. You have access to real-time web search. When needed, use web search to find the latest information, best practices, or specific technologies for {language}.
Write clean, idiomatic, and runnable {language} code for the user's request. If possible, include comments and best practices. Output ONLY the code inside a ``` code block, and do not include any explanations or extra text. If the user provides a file or other context, use it as a reference. If the code is for a script or app, make it as self-contained as possible. Do NOT add the language name at the top of the code output."""
# Follow-up system prompt for modifying existing HTML files
FollowUpSystemPrompt = f"""You are an expert web developer modifying an existing project.
The user wants to apply changes based on their request.
You MUST output ONLY the changes required using the following SEARCH/REPLACE block format. Do NOT output the entire file.
Explain the changes briefly *before* the blocks if necessary, but the code changes THEMSELVES MUST be within the blocks.
IMPORTANT: When the user reports an ERROR MESSAGE, analyze it carefully to determine which file needs fixing:
- ImportError/ModuleNotFoundError → Fix requirements.txt by adding missing packages
- Syntax errors in Python code → Fix app.py or the main Python file
- HTML/CSS/JavaScript errors → Fix the respective HTML/CSS/JS files
- Configuration errors → Fix config files, Docker files, etc.
For Python applications (Gradio/Streamlit), the project structure typically includes:
- app.py (main application file)
- requirements.txt (dependencies)
- Other supporting files as needed
Format Rules:
1. Start with {SEARCH_START}
2. Provide the exact lines from the current code that need to be replaced.
3. Use {DIVIDER} to separate the search block from the replacement.
4. Provide the new lines that should replace the original lines.
5. End with {REPLACE_END}
6. You can use multiple SEARCH/REPLACE blocks if changes are needed in different parts of the file.
7. To insert code, use an empty SEARCH block (only {SEARCH_START} and {DIVIDER} on their lines) if inserting at the very beginning, otherwise provide the line *before* the insertion point in the SEARCH block and include that line plus the new lines in the REPLACE block.
8. To delete code, provide the lines to delete in the SEARCH block and leave the REPLACE block empty (only {DIVIDER} and {REPLACE_END} on their lines).
9. IMPORTANT: The SEARCH block must *exactly* match the current code, including indentation and whitespace.
10. For multi-file projects, specify which file you're modifying by starting with the filename before the search/replace block.
Example Modifying Code:
```
Some explanation...
{SEARCH_START}
Old Title
{DIVIDER}
New Title
{REPLACE_END}
{SEARCH_START}
', html_content.find(' str:
"""Apply search/replace changes to content (HTML, Python, etc.)"""
if not changes_text.strip():
return original_content
# Split the changes text into individual search/replace blocks
blocks = []
current_block = ""
lines = changes_text.split('\n')
for line in lines:
if line.strip() == SEARCH_START:
if current_block.strip():
blocks.append(current_block.strip())
current_block = line + '\n'
elif line.strip() == REPLACE_END:
current_block += line + '\n'
blocks.append(current_block.strip())
current_block = ""
else:
current_block += line + '\n'
if current_block.strip():
blocks.append(current_block.strip())
modified_content = original_content
for block in blocks:
if not block.strip():
continue
# Parse the search/replace block
lines = block.split('\n')
search_lines = []
replace_lines = []
in_search = False
in_replace = False
for line in lines:
if line.strip() == SEARCH_START:
in_search = True
in_replace = False
elif line.strip() == DIVIDER:
in_search = False
in_replace = True
elif line.strip() == REPLACE_END:
in_replace = False
elif in_search:
search_lines.append(line)
elif in_replace:
replace_lines.append(line)
# Apply the search/replace
if search_lines:
search_text = '\n'.join(search_lines).strip()
replace_text = '\n'.join(replace_lines).strip()
if search_text in modified_content:
modified_content = modified_content.replace(search_text, replace_text)
else:
print(f"Warning: Search text not found in content: {search_text[:100]}...")
return modified_content
def apply_transformers_js_search_replace_changes(original_formatted_content: str, changes_text: str) -> str:
"""Apply search/replace changes to transformers.js formatted content (three files)"""
if not changes_text.strip():
return original_formatted_content
# Parse the original formatted content to get the three files
files = parse_transformers_js_output(original_formatted_content)
# Split the changes text into individual search/replace blocks
blocks = []
current_block = ""
lines = changes_text.split('\n')
for line in lines:
if line.strip() == SEARCH_START:
if current_block.strip():
blocks.append(current_block.strip())
current_block = line + '\n'
elif line.strip() == REPLACE_END:
current_block += line + '\n'
blocks.append(current_block.strip())
current_block = ""
else:
current_block += line + '\n'
if current_block.strip():
blocks.append(current_block.strip())
# Process each block and apply changes to the appropriate file
for block in blocks:
if not block.strip():
continue
# Parse the search/replace block
lines = block.split('\n')
search_lines = []
replace_lines = []
in_search = False
in_replace = False
target_file = None
for line in lines:
if line.strip() == SEARCH_START:
in_search = True
in_replace = False
elif line.strip() == DIVIDER:
in_search = False
in_replace = True
elif line.strip() == REPLACE_END:
in_replace = False
elif in_search:
search_lines.append(line)
elif in_replace:
replace_lines.append(line)
# Determine which file this change targets based on the search content
if search_lines:
search_text = '\n'.join(search_lines).strip()
replace_text = '\n'.join(replace_lines).strip()
# Check which file contains the search text
if search_text in files['index.html']:
target_file = 'index.html'
elif search_text in files['index.js']:
target_file = 'index.js'
elif search_text in files['style.css']:
target_file = 'style.css'
# Apply the change to the target file
if target_file and search_text in files[target_file]:
files[target_file] = files[target_file].replace(search_text, replace_text)
else:
print(f"Warning: Search text not found in any transformers.js file: {search_text[:100]}...")
# Reformat the modified files
return format_transformers_js_output(files)
# Updated for faster Tavily search and closer prompt usage
# Uses 'advanced' search_depth and auto_parameters=True for speed and relevance
def perform_web_search(query: str, max_results: int = 5, include_domains=None, exclude_domains=None) -> str:
"""Perform web search using Tavily with default parameters"""
if not tavily_client:
return "Web search is not available. Please set the TAVILY_API_KEY environment variable."
try:
# Use Tavily defaults with advanced search depth for better results
search_params = {
"search_depth": "advanced",
"max_results": min(max(1, max_results), 20)
}
if include_domains is not None:
search_params["include_domains"] = include_domains
if exclude_domains is not None:
search_params["exclude_domains"] = exclude_domains
response = tavily_client.search(query, **search_params)
search_results = []
for result in response.get('results', []):
title = result.get('title', 'No title')
url = result.get('url', 'No URL')
content = result.get('content', 'No content')
search_results.append(f"Title: {title}\nURL: {url}\nContent: {content}\n")
if search_results:
return "Web Search Results:\n\n" + "\n---\n".join(search_results)
else:
return "No search results found."
except Exception as e:
return f"Search error: {str(e)}"
def enhance_query_with_search(query: str, enable_search: bool) -> str:
"""Enhance the query with web search results if search is enabled"""
if not enable_search or not tavily_client:
return query
# Perform search to get relevant information
search_results = perform_web_search(query)
# Combine original query with search results
enhanced_query = f"""Original Query: {query}
{search_results}
Please use the search results above to help create the requested application with the most up-to-date information and best practices."""
return enhanced_query
def send_to_sandbox(code):
# Add a wrapper to inject necessary permissions and ensure full HTML
wrapped_code = f"""
{code}
"""
encoded_html = base64.b64encode(wrapped_code.encode('utf-8')).decode('utf-8')
data_uri = f"data:text/html;charset=utf-8;base64,{encoded_html}"
iframe = f''
return iframe
def demo_card_click(e: gr.EventData):
try:
# Get the index from the event data
if hasattr(e, '_data') and e._data:
# Try different ways to get the index
if 'index' in e._data:
index = e._data['index']
elif 'component' in e._data and 'index' in e._data['component']:
index = e._data['component']['index']
elif 'target' in e._data and 'index' in e._data['target']:
index = e._data['target']['index']
else:
# If we can't get the index, try to extract it from the card data
index = 0
else:
index = 0
# Ensure index is within bounds
if index >= len(DEMO_LIST):
index = 0
return DEMO_LIST[index]['description']
except (KeyError, IndexError, AttributeError) as e:
# Return the first demo description as fallback
return DEMO_LIST[0]['description']
def extract_text_from_image(image_path):
"""Extract text from image using OCR"""
try:
# Check if tesseract is available
try:
pytesseract.get_tesseract_version()
except Exception:
return "Error: Tesseract OCR is not installed. Please install Tesseract to extract text from images. See install_tesseract.md for instructions."
# Read image using OpenCV
image = cv2.imread(image_path)
if image is None:
return "Error: Could not read image file"
# Convert to RGB (OpenCV uses BGR)
image_rgb = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
# Preprocess image for better OCR results
# Convert to grayscale
gray = cv2.cvtColor(image_rgb, cv2.COLOR_RGB2GRAY)
# Apply thresholding to get binary image
_, binary = cv2.threshold(gray, 0, 255, cv2.THRESH_BINARY + cv2.THRESH_OTSU)
# Extract text using pytesseract
text = pytesseract.image_to_string(binary, config='--psm 6')
return text.strip() if text.strip() else "No text found in image"
except Exception as e:
return f"Error extracting text from image: {e}"
def extract_text_from_file(file_path):
if not file_path:
return ""
mime, _ = mimetypes.guess_type(file_path)
ext = os.path.splitext(file_path)[1].lower()
try:
if ext == ".pdf":
with open(file_path, "rb") as f:
reader = PyPDF2.PdfReader(f)
return "\n".join(page.extract_text() or "" for page in reader.pages)
elif ext in [".txt", ".md"]:
with open(file_path, "r", encoding="utf-8") as f:
return f.read()
elif ext == ".csv":
with open(file_path, "r", encoding="utf-8") as f:
return f.read()
elif ext == ".docx":
doc = docx.Document(file_path)
return "\n".join([para.text for para in doc.paragraphs])
elif ext.lower() in [".jpg", ".jpeg", ".png", ".bmp", ".tiff", ".tif", ".gif", ".webp"]:
return extract_text_from_image(file_path)
else:
return ""
except Exception as e:
return f"Error extracting text: {e}"
def extract_website_content(url: str) -> str:
"""Extract HTML code and content from a website URL"""
try:
# Validate URL
parsed_url = urlparse(url)
if not parsed_url.scheme:
url = "https://" + url
parsed_url = urlparse(url)
if not parsed_url.netloc:
return "Error: Invalid URL provided"
# Set comprehensive headers to mimic a real browser request
headers = {
'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8',
'Accept-Language': 'en-US,en;q=0.9',
'Accept-Encoding': 'gzip, deflate, br',
'DNT': '1',
'Connection': 'keep-alive',
'Upgrade-Insecure-Requests': '1',
'Sec-Fetch-Dest': 'document',
'Sec-Fetch-Mode': 'navigate',
'Sec-Fetch-Site': 'none',
'Sec-Fetch-User': '?1',
'Cache-Control': 'max-age=0'
}
# Create a session to maintain cookies and handle redirects
session = requests.Session()
session.headers.update(headers)
# Make the request with retry logic
max_retries = 3
for attempt in range(max_retries):
try:
response = session.get(url, timeout=15, allow_redirects=True)
response.raise_for_status()
break
except requests.exceptions.HTTPError as e:
if e.response.status_code == 403 and attempt < max_retries - 1:
# Try with different User-Agent on 403
session.headers['User-Agent'] = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36'
continue
else:
raise
# Get the raw HTML content with proper encoding
try:
# Try to get the content with automatic encoding detection
response.encoding = response.apparent_encoding
raw_html = response.text
except:
# Fallback to UTF-8 if encoding detection fails
raw_html = response.content.decode('utf-8', errors='ignore')
# Debug: Check if we got valid HTML
if not raw_html.strip().startswith(' 10:
print(f"Warning: This site has {len(script_tags)} script tags - it may be a JavaScript-heavy site")
print("The content might be loaded dynamically and not available in the initial HTML")
# Extract title
title = soup.find('title')
title_text = title.get_text().strip() if title else "No title found"
# Extract meta description
meta_desc = soup.find('meta', attrs={'name': 'description'})
description = meta_desc.get('content', '') if meta_desc else ""
# Extract main content areas for analysis
content_sections = []
main_selectors = [
'main', 'article', '.content', '.main-content', '.post-content',
'#content', '#main', '.entry-content', '.post-body'
]
for selector in main_selectors:
elements = soup.select(selector)
for element in elements:
text = element.get_text().strip()
if len(text) > 100: # Only include substantial content
content_sections.append(text)
# Extract navigation links for analysis
nav_links = []
nav_elements = soup.find_all(['nav', 'header'])
for nav in nav_elements:
links = nav.find_all('a')
for link in links:
link_text = link.get_text().strip()
link_href = link.get('href', '')
if link_text and link_href:
nav_links.append(f"{link_text}: {link_href}")
# Extract and fix image URLs in the HTML
img_elements = soup.find_all('img')
for img in img_elements:
src = img.get('src', '')
if src:
# Handle different URL formats
if src.startswith('//'):
# Protocol-relative URL
absolute_src = 'https:' + src
img['src'] = absolute_src
elif src.startswith('/'):
# Root-relative URL
absolute_src = urljoin(url, src)
img['src'] = absolute_src
elif not src.startswith(('http://', 'https://')):
# Relative URL
absolute_src = urljoin(url, src)
img['src'] = absolute_src
# If it's already absolute, keep it as is
# Also check for data-src (lazy loading) and other common attributes
data_src = img.get('data-src', '')
if data_src and not src:
# Use data-src if src is empty
if data_src.startswith('//'):
absolute_data_src = 'https:' + data_src
img['src'] = absolute_data_src
elif data_src.startswith('/'):
absolute_data_src = urljoin(url, data_src)
img['src'] = absolute_data_src
elif not data_src.startswith(('http://', 'https://')):
absolute_data_src = urljoin(url, data_src)
img['src'] = absolute_data_src
else:
img['src'] = data_src
# Also fix background image URLs in style attributes
elements_with_style = soup.find_all(attrs={'style': True})
for element in elements_with_style:
style_attr = element.get('style', '')
# Find and replace relative URLs in background-image
import re
bg_pattern = r'background-image:\s*url\(["\']?([^"\']+)["\']?\)'
matches = re.findall(bg_pattern, style_attr, re.IGNORECASE)
for match in matches:
if match:
if match.startswith('//'):
absolute_bg = 'https:' + match
style_attr = style_attr.replace(match, absolute_bg)
elif match.startswith('/'):
absolute_bg = urljoin(url, match)
style_attr = style_attr.replace(match, absolute_bg)
elif not match.startswith(('http://', 'https://')):
absolute_bg = urljoin(url, match)
style_attr = style_attr.replace(match, absolute_bg)
element['style'] = style_attr
# Fix background images in