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| import gradio as gr | |
| import requests | |
| import base64 | |
| from pathlib import Path | |
| import jwt | |
| import time | |
| # Kling AI API configuration (keys hardcoded as requested) | |
| ACCESS_KEY_ID = "AGBGmadNd9hakFYfahytyQQJtN8CJmDJ" | |
| ACCESS_KEY_SECRET = "dp3pAe4PpdmnAHCAPgEd3PyLmBQrkMde" | |
| API_URL = "https://api-singapore.klingai.com/v1/image-to-image" | |
| def generate_jwt_token(): | |
| """Generate JWT token for Kling AI API authentication.""" | |
| headers = { | |
| "alg": "HS256", | |
| "typ": "JWT" | |
| } | |
| payload = { | |
| "iss": ACCESS_KEY_ID, | |
| "exp": int(time.time()) + 1800, # Token expires in 30 minutes | |
| "nbf": int(time.time()) - 5 # Effective 5 seconds before current time | |
| } | |
| token = jwt.encode(payload, ACCESS_KEY_SECRET, headers=headers) | |
| return token | |
| def generate_image(image, prompt=""): | |
| """ | |
| Call Kling AI API to generate an image from an input image. | |
| Args: | |
| image: Uploaded image file (from Gradio) | |
| prompt (str): Optional text prompt to guide image transformation | |
| Returns: | |
| str: Path to the generated image or error message | |
| """ | |
| if not image: | |
| return "Error: Please upload a valid image (PNG/JPEG, <10 MB, ≥512x512 pixels)." | |
| # Convert image to base64 | |
| try: | |
| with open(image, "rb") as img_file: | |
| image_base64 = base64.b64encode(img_file.read()).decode("utf-8") | |
| except Exception as e: | |
| return f"Error: Failed to process image. Ensure it’s a valid PNG/JPEG. Details: {str(e)}" | |
| headers = { | |
| "Authorization": f"Bearer {generate_jwt_token()}", | |
| "Content-Type": "application/json" | |
| } | |
| payload = { | |
| "image": image_base64, | |
| "prompt": prompt or "Transform the image into a cartoon style", | |
| "strength": 0.7, # Controls transformation intensity (0.0 to 1.0) | |
| "output_format": "png" | |
| } | |
| try: | |
| response = requests.post(API_URL, json=payload, headers=headers, timeout=30) | |
| response.raise_for_status() | |
| data = response.json() | |
| task_id = data.get("task_id") or data.get("taskId") or data.get("id") | |
| if not task_id: | |
| return "Error: No task ID returned. Check API endpoint or keys at https://klingai.com/global/dev." | |
| # Poll for task completion | |
| status_url = f"https://api-singapore.klingai.com/v1/predictions/{task_id}" | |
| for _ in range(60): # Poll for up to 5 minutes | |
| status_response = requests.get(status_url, headers=headers, timeout=30) | |
| status_response.raise_for_status() | |
| status_data = status_response.json() | |
| status = status_data.get("status") | |
| if status == "succeeded": | |
| image_url = status_data.get("image_url") or status_data.get("result", {}).get("image_url") or status_data.get("output") | |
| if not image_url: | |
| return "Error: No image URL in API response. Check API documentation." | |
| # Download the image | |
| image_response = requests.get(image_url, timeout=30) | |
| image_response.raise_for_status() | |
| output_path = Path("output_image.png") | |
| with open(output_path, "wb") as f: | |
| f.write(image_response.content) | |
| return str(output_path) | |
| elif status == "failed": | |
| return "Error: Image generation failed. Avoid NSFW, celebrities, or sensitive content (e.g., politics, violence)." | |
| elif status == "processing" and status_data.get("progress", 0) >= 0.99: | |
| return "Error: Generation stuck at 99%. Check account credits or upgrade to a paid plan at https://klingai.com." | |
| time.sleep(5) | |
| return "Error: Image generation timed out. Try during off-peak hours or check account status." | |
| except requests.exceptions.HTTPError as e: | |
| status_code = e.response.status_code if e.response else None | |
| error_data = e.response.json() if e.response and e.response.text else {} | |
| service_code = error_data.get("code", 0) | |
| if status_code == 401: | |
| if service_code == 1000: | |
| return "Error: Authentication failed (1000). Verify API keys are correct." | |
| elif service_code == 1001: | |
| return "Error: Authorization empty (1001). Ensure JWT token is included." | |
| elif service_code == 1002: | |
| return "Error: Authorization invalid (1002). Check key format." | |
| elif service_code == 1003: | |
| return "Error: Authorization not yet valid (1003). Adjust token start time (nbf)." | |
| elif service_code == 1004: | |
| return "Error: Authorization expired (1004). Generate a new token." | |
| elif status_code == 429: | |
| if service_code == 1100: | |
| return "Error: Account exception (1100). Verify account configuration at https://klingai.com." | |
| elif service_code == 1101: | |
| return "Error: Account in arrears (1101). Recharge your account." | |
| elif service_code == 1102: | |
| return "Error: Resource pack depleted or expired (1102). Purchase additional resources." | |
| elif service_code in (1302, 1303): | |
| return "Error: Rate limit exceeded (1302/1303). Reduce request frequency or contact support." | |
| elif service_code == 1304: | |
| return "Error: IP whitelisting issue (1304). Contact Kling AI support." | |
| elif status_code == 403 and service_code == 1103: | |
| return "Error: Unauthorized access (1103). Verify account permissions." | |
| elif status_code == 400: | |
| if service_code == 1200: | |
| return "Error: Invalid request parameters (1200). Check payload format." | |
| elif service_code == 1201: | |
| return "Error: Invalid parameters (1201). Use PNG/JPEG (<10 MB, ≥512x512) and a simple prompt." | |
| elif service_code == 1300: | |
| return "Error: Platform policy triggered (1300). Check input content." | |
| elif service_code == 1301: | |
| return "Error: Content security policy triggered (1301). Avoid NSFW or sensitive content." | |
| elif status_code == 404: | |
| if service_code == 1202: | |
| return "Error: Invalid request method (1202). Check https://klingai.com/global/dev for correct endpoint." | |
| elif service_code == 1203: | |
| return "Error: Resource does not exist (1203). Verify model or endpoint." | |
| elif status_code in (500, 503, 504): | |
| if service_code == 5000: | |
| return "Error: Server internal error (5000). Try again later." | |
| elif service_code == 5001: | |
| return "Error: Server unavailable due to maintenance (5001). Try again later." | |
| elif service_code == 5002: | |
| return "Error: Server timeout (5002). Try during off-peak hours." | |
| return f"Error: API request failed. HTTP {status_code}, Service Code {service_code}. Details: {str(e)}" | |
| except requests.exceptions.RequestException as e: | |
| return f"Error: Network issue. Ensure stable internet, disable VPN, and try again. Details: {str(e)}" | |
| def chatbot_interface(image, prompt): | |
| """ | |
| Gradio interface for image-to-image generation. | |
| Args: | |
| image: Uploaded image file | |
| prompt (str): Optional text prompt | |
| Returns: | |
| Image file path or error message | |
| """ | |
| return generate_image(image, prompt) | |
| # Define Gradio interface | |
| iface = gr.Interface( | |
| fn=chatbot_interface, | |
| inputs=[ | |
| gr.Image(type="filepath", label="Upload Image (PNG/JPEG, <10 MB, ≥512x512)"), | |
| gr.Textbox(lines=2, placeholder="Enter an optional prompt (e.g., 'Turn this into a cartoon')", label="Prompt") | |
| ], | |
| outputs=gr.Image(label="Generated Image"), | |
| title="Kling AI Image-to-Image Generator", | |
| description="Upload a PNG/JPEG image (<10 MB, ≥512x512 pixels) to generate a transformed image using Kling AI API. Avoid NSFW, celebrities, or sensitive content." | |
| ) | |
| # Launch the interface | |
| if __name__ == "__main__": | |
| iface.launch(server_name="0.0.0.0", server_port=7860) |