mirror of
https://github.com/open-webui/open-webui
synced 2024-11-07 17:19:53 +00:00
564 lines
18 KiB
Python
564 lines
18 KiB
Python
from fastapi import (
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FastAPI,
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Request,
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Depends,
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HTTPException,
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)
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from fastapi.middleware.cors import CORSMiddleware
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from typing import Optional
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from pydantic import BaseModel
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from pathlib import Path
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import mimetypes
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import uuid
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import base64
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import json
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import logging
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import re
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import requests
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from utils.utils import (
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get_verified_user,
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get_admin_user,
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)
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from apps.images.utils.comfyui import (
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ComfyUIWorkflow,
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ComfyUIGenerateImageForm,
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comfyui_generate_image,
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)
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from constants import ERROR_MESSAGES
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from config import (
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SRC_LOG_LEVELS,
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CACHE_DIR,
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IMAGE_GENERATION_ENGINE,
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ENABLE_IMAGE_GENERATION,
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AUTOMATIC1111_BASE_URL,
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AUTOMATIC1111_API_AUTH,
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COMFYUI_BASE_URL,
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COMFYUI_WORKFLOW,
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COMFYUI_WORKFLOW_NODES,
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IMAGES_OPENAI_API_BASE_URL,
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IMAGES_OPENAI_API_KEY,
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IMAGE_GENERATION_MODEL,
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IMAGE_SIZE,
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IMAGE_STEPS,
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CORS_ALLOW_ORIGIN,
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AppConfig,
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)
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log = logging.getLogger(__name__)
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log.setLevel(SRC_LOG_LEVELS["IMAGES"])
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IMAGE_CACHE_DIR = Path(CACHE_DIR).joinpath("./image/generations/")
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IMAGE_CACHE_DIR.mkdir(parents=True, exist_ok=True)
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app = FastAPI()
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app.add_middleware(
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CORSMiddleware,
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allow_origins=CORS_ALLOW_ORIGIN,
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allow_credentials=True,
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allow_methods=["*"],
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allow_headers=["*"],
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)
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app.state.config = AppConfig()
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app.state.config.ENGINE = IMAGE_GENERATION_ENGINE
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app.state.config.ENABLED = ENABLE_IMAGE_GENERATION
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app.state.config.OPENAI_API_BASE_URL = IMAGES_OPENAI_API_BASE_URL
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app.state.config.OPENAI_API_KEY = IMAGES_OPENAI_API_KEY
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app.state.config.MODEL = IMAGE_GENERATION_MODEL
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app.state.config.AUTOMATIC1111_BASE_URL = AUTOMATIC1111_BASE_URL
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app.state.config.AUTOMATIC1111_API_AUTH = AUTOMATIC1111_API_AUTH
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app.state.config.COMFYUI_BASE_URL = COMFYUI_BASE_URL
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app.state.config.COMFYUI_WORKFLOW = COMFYUI_WORKFLOW
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app.state.config.COMFYUI_WORKFLOW_NODES = COMFYUI_WORKFLOW_NODES
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app.state.config.IMAGE_SIZE = IMAGE_SIZE
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app.state.config.IMAGE_STEPS = IMAGE_STEPS
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@app.get("/config")
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async def get_config(request: Request, user=Depends(get_admin_user)):
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return {
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"enabled": app.state.config.ENABLED,
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"engine": app.state.config.ENGINE,
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"openai": {
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"OPENAI_API_BASE_URL": app.state.config.OPENAI_API_BASE_URL,
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"OPENAI_API_KEY": app.state.config.OPENAI_API_KEY,
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},
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"automatic1111": {
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"AUTOMATIC1111_BASE_URL": app.state.config.AUTOMATIC1111_BASE_URL,
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"AUTOMATIC1111_API_AUTH": app.state.config.AUTOMATIC1111_API_AUTH,
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},
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"comfyui": {
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"COMFYUI_BASE_URL": app.state.config.COMFYUI_BASE_URL,
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"COMFYUI_WORKFLOW": app.state.config.COMFYUI_WORKFLOW,
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"COMFYUI_WORKFLOW_NODES": app.state.config.COMFYUI_WORKFLOW_NODES,
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},
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}
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class OpenAIConfigForm(BaseModel):
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OPENAI_API_BASE_URL: str
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OPENAI_API_KEY: str
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class Automatic1111ConfigForm(BaseModel):
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AUTOMATIC1111_BASE_URL: str
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AUTOMATIC1111_API_AUTH: str
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class ComfyUIConfigForm(BaseModel):
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COMFYUI_BASE_URL: str
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COMFYUI_WORKFLOW: str
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COMFYUI_WORKFLOW_NODES: list[dict]
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class ConfigForm(BaseModel):
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enabled: bool
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engine: str
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openai: OpenAIConfigForm
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automatic1111: Automatic1111ConfigForm
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comfyui: ComfyUIConfigForm
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@app.post("/config/update")
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async def update_config(form_data: ConfigForm, user=Depends(get_admin_user)):
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app.state.config.ENGINE = form_data.engine
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app.state.config.ENABLED = form_data.enabled
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app.state.config.OPENAI_API_BASE_URL = form_data.openai.OPENAI_API_BASE_URL
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app.state.config.OPENAI_API_KEY = form_data.openai.OPENAI_API_KEY
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app.state.config.AUTOMATIC1111_BASE_URL = (
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form_data.automatic1111.AUTOMATIC1111_BASE_URL
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)
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app.state.config.AUTOMATIC1111_API_AUTH = (
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form_data.automatic1111.AUTOMATIC1111_API_AUTH
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)
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app.state.config.COMFYUI_BASE_URL = form_data.comfyui.COMFYUI_BASE_URL
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app.state.config.COMFYUI_WORKFLOW = form_data.comfyui.COMFYUI_WORKFLOW
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app.state.config.COMFYUI_WORKFLOW_NODES = form_data.comfyui.COMFYUI_WORKFLOW_NODES
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return {
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"enabled": app.state.config.ENABLED,
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"engine": app.state.config.ENGINE,
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"openai": {
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"OPENAI_API_BASE_URL": app.state.config.OPENAI_API_BASE_URL,
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"OPENAI_API_KEY": app.state.config.OPENAI_API_KEY,
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},
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"automatic1111": {
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"AUTOMATIC1111_BASE_URL": app.state.config.AUTOMATIC1111_BASE_URL,
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"AUTOMATIC1111_API_AUTH": app.state.config.AUTOMATIC1111_API_AUTH,
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},
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"comfyui": {
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"COMFYUI_BASE_URL": app.state.config.COMFYUI_BASE_URL,
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"COMFYUI_WORKFLOW": app.state.config.COMFYUI_WORKFLOW,
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"COMFYUI_WORKFLOW_NODES": app.state.config.COMFYUI_WORKFLOW_NODES,
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},
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}
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def get_automatic1111_api_auth():
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if app.state.config.AUTOMATIC1111_API_AUTH is None:
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return ""
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else:
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auth1111_byte_string = app.state.config.AUTOMATIC1111_API_AUTH.encode("utf-8")
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auth1111_base64_encoded_bytes = base64.b64encode(auth1111_byte_string)
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auth1111_base64_encoded_string = auth1111_base64_encoded_bytes.decode("utf-8")
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return f"Basic {auth1111_base64_encoded_string}"
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@app.get("/config/url/verify")
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async def verify_url(user=Depends(get_admin_user)):
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if app.state.config.ENGINE == "automatic1111":
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try:
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r = requests.get(
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url=f"{app.state.config.AUTOMATIC1111_BASE_URL}/sdapi/v1/options",
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headers={"authorization": get_automatic1111_api_auth()},
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)
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r.raise_for_status()
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return True
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except Exception as e:
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app.state.config.ENABLED = False
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raise HTTPException(status_code=400, detail=ERROR_MESSAGES.INVALID_URL)
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elif app.state.config.ENGINE == "comfyui":
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try:
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r = requests.get(url=f"{app.state.config.COMFYUI_BASE_URL}/object_info")
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r.raise_for_status()
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return True
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except Exception as e:
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app.state.config.ENABLED = False
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raise HTTPException(status_code=400, detail=ERROR_MESSAGES.INVALID_URL)
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else:
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return True
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def set_image_model(model: str):
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app.state.config.MODEL = model
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if app.state.config.ENGINE in ["", "automatic1111"]:
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api_auth = get_automatic1111_api_auth()
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r = requests.get(
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url=f"{app.state.config.AUTOMATIC1111_BASE_URL}/sdapi/v1/options",
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headers={"authorization": api_auth},
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)
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options = r.json()
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if model != options["sd_model_checkpoint"]:
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options["sd_model_checkpoint"] = model
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r = requests.post(
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url=f"{app.state.config.AUTOMATIC1111_BASE_URL}/sdapi/v1/options",
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json=options,
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headers={"authorization": api_auth},
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)
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return app.state.config.MODEL
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def get_image_model():
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if app.state.config.ENGINE == "openai":
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return app.state.config.MODEL if app.state.config.MODEL else "dall-e-2"
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elif app.state.config.ENGINE == "comfyui":
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return app.state.config.MODEL if app.state.config.MODEL else ""
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elif app.state.config.ENGINE == "automatic1111" or app.state.config.ENGINE == "":
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try:
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r = requests.get(
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url=f"{app.state.config.AUTOMATIC1111_BASE_URL}/sdapi/v1/options",
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headers={"authorization": get_automatic1111_api_auth()},
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)
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options = r.json()
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return options["sd_model_checkpoint"]
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except Exception as e:
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app.state.config.ENABLED = False
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raise HTTPException(status_code=400, detail=ERROR_MESSAGES.DEFAULT(e))
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class ImageConfigForm(BaseModel):
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MODEL: str
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IMAGE_SIZE: str
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IMAGE_STEPS: int
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@app.get("/image/config")
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async def get_image_config(user=Depends(get_admin_user)):
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return {
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"MODEL": app.state.config.MODEL,
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"IMAGE_SIZE": app.state.config.IMAGE_SIZE,
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"IMAGE_STEPS": app.state.config.IMAGE_STEPS,
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}
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@app.post("/image/config/update")
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async def update_image_config(form_data: ImageConfigForm, user=Depends(get_admin_user)):
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app.state.config.MODEL = form_data.MODEL
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pattern = r"^\d+x\d+$"
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if re.match(pattern, form_data.IMAGE_SIZE):
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app.state.config.IMAGE_SIZE = form_data.IMAGE_SIZE
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else:
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raise HTTPException(
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status_code=400,
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detail=ERROR_MESSAGES.INCORRECT_FORMAT(" (e.g., 512x512)."),
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)
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if form_data.IMAGE_STEPS >= 0:
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app.state.config.IMAGE_STEPS = form_data.IMAGE_STEPS
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else:
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raise HTTPException(
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status_code=400,
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detail=ERROR_MESSAGES.INCORRECT_FORMAT(" (e.g., 50)."),
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)
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return {
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"MODEL": app.state.config.MODEL,
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"IMAGE_SIZE": app.state.config.IMAGE_SIZE,
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"IMAGE_STEPS": app.state.config.IMAGE_STEPS,
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}
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@app.get("/models")
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def get_models(user=Depends(get_verified_user)):
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try:
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if app.state.config.ENGINE == "openai":
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return [
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{"id": "dall-e-2", "name": "DALL·E 2"},
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{"id": "dall-e-3", "name": "DALL·E 3"},
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]
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elif app.state.config.ENGINE == "comfyui":
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# TODO - get models from comfyui
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r = requests.get(url=f"{app.state.config.COMFYUI_BASE_URL}/object_info")
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info = r.json()
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workflow = json.loads(app.state.config.COMFYUI_WORKFLOW)
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model_node_id = None
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for node in app.state.config.COMFYUI_WORKFLOW_NODES:
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if node["type"] == "model":
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if node["node_ids"]:
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model_node_id = node["node_ids"][0]
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break
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if model_node_id:
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model_list_key = None
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print(workflow[model_node_id]["class_type"])
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for key in info[workflow[model_node_id]["class_type"]]["input"][
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"required"
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]:
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if "_name" in key:
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model_list_key = key
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break
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if model_list_key:
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return list(
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map(
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lambda model: {"id": model, "name": model},
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info[workflow[model_node_id]["class_type"]]["input"][
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"required"
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][model_list_key][0],
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)
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)
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else:
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return list(
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map(
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lambda model: {"id": model, "name": model},
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info["CheckpointLoaderSimple"]["input"]["required"][
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"ckpt_name"
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][0],
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)
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)
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elif (
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app.state.config.ENGINE == "automatic1111" or app.state.config.ENGINE == ""
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):
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r = requests.get(
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url=f"{app.state.config.AUTOMATIC1111_BASE_URL}/sdapi/v1/sd-models",
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headers={"authorization": get_automatic1111_api_auth()},
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)
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models = r.json()
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return list(
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map(
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lambda model: {"id": model["title"], "name": model["model_name"]},
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models,
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)
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)
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except Exception as e:
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app.state.config.ENABLED = False
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raise HTTPException(status_code=400, detail=ERROR_MESSAGES.DEFAULT(e))
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class GenerateImageForm(BaseModel):
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model: Optional[str] = None
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prompt: str
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size: Optional[str] = None
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n: int = 1
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negative_prompt: Optional[str] = None
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def save_b64_image(b64_str):
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try:
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image_id = str(uuid.uuid4())
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if "," in b64_str:
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header, encoded = b64_str.split(",", 1)
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mime_type = header.split(";")[0]
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img_data = base64.b64decode(encoded)
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image_format = mimetypes.guess_extension(mime_type)
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image_filename = f"{image_id}{image_format}"
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file_path = IMAGE_CACHE_DIR / f"{image_filename}"
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with open(file_path, "wb") as f:
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f.write(img_data)
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return image_filename
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else:
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image_filename = f"{image_id}.png"
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file_path = IMAGE_CACHE_DIR.joinpath(image_filename)
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img_data = base64.b64decode(b64_str)
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# Write the image data to a file
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with open(file_path, "wb") as f:
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f.write(img_data)
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return image_filename
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except Exception as e:
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log.exception(f"Error saving image: {e}")
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return None
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def save_url_image(url):
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image_id = str(uuid.uuid4())
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try:
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r = requests.get(url)
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r.raise_for_status()
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if r.headers["content-type"].split("/")[0] == "image":
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mime_type = r.headers["content-type"]
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image_format = mimetypes.guess_extension(mime_type)
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if not image_format:
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raise ValueError("Could not determine image type from MIME type")
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image_filename = f"{image_id}{image_format}"
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file_path = IMAGE_CACHE_DIR.joinpath(f"{image_filename}")
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with open(file_path, "wb") as image_file:
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for chunk in r.iter_content(chunk_size=8192):
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image_file.write(chunk)
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return image_filename
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else:
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log.error(f"Url does not point to an image.")
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return None
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except Exception as e:
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log.exception(f"Error saving image: {e}")
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return None
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@app.post("/generations")
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async def image_generations(
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form_data: GenerateImageForm,
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user=Depends(get_verified_user),
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):
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width, height = tuple(map(int, app.state.config.IMAGE_SIZE.split("x")))
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r = None
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try:
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if app.state.config.ENGINE == "openai":
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headers = {}
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headers["Authorization"] = f"Bearer {app.state.config.OPENAI_API_KEY}"
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headers["Content-Type"] = "application/json"
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data = {
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"model": (
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app.state.config.MODEL
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if app.state.config.MODEL != ""
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else "dall-e-2"
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),
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"prompt": form_data.prompt,
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"n": form_data.n,
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"size": (
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form_data.size if form_data.size else app.state.config.IMAGE_SIZE
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),
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"response_format": "b64_json",
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}
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r = requests.post(
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url=f"{app.state.config.OPENAI_API_BASE_URL}/images/generations",
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json=data,
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headers=headers,
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)
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r.raise_for_status()
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res = r.json()
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images = []
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for image in res["data"]:
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image_filename = save_b64_image(image["b64_json"])
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images.append({"url": f"/cache/image/generations/{image_filename}"})
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file_body_path = IMAGE_CACHE_DIR.joinpath(f"{image_filename}.json")
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with open(file_body_path, "w") as f:
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json.dump(data, f)
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return images
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elif app.state.config.ENGINE == "comfyui":
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data = {
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"prompt": form_data.prompt,
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"width": width,
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"height": height,
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"n": form_data.n,
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}
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if app.state.config.IMAGE_STEPS is not None:
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data["steps"] = app.state.config.IMAGE_STEPS
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if form_data.negative_prompt is not None:
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data["negative_prompt"] = form_data.negative_prompt
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form_data = ComfyUIGenerateImageForm(
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**{
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"workflow": ComfyUIWorkflow(
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**{
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"workflow": app.state.config.COMFYUI_WORKFLOW,
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"nodes": app.state.config.COMFYUI_WORKFLOW_NODES,
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}
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),
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**data,
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}
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)
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res = await comfyui_generate_image(
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app.state.config.MODEL,
|
|
form_data,
|
|
user.id,
|
|
app.state.config.COMFYUI_BASE_URL,
|
|
)
|
|
log.debug(f"res: {res}")
|
|
|
|
images = []
|
|
|
|
for image in res["data"]:
|
|
image_filename = save_url_image(image["url"])
|
|
images.append({"url": f"/cache/image/generations/{image_filename}"})
|
|
file_body_path = IMAGE_CACHE_DIR.joinpath(f"{image_filename}.json")
|
|
|
|
with open(file_body_path, "w") as f:
|
|
json.dump(form_data.model_dump(exclude_none=True), f)
|
|
|
|
log.debug(f"images: {images}")
|
|
return images
|
|
elif (
|
|
app.state.config.ENGINE == "automatic1111" or app.state.config.ENGINE == ""
|
|
):
|
|
if form_data.model:
|
|
set_image_model(form_data.model)
|
|
|
|
data = {
|
|
"prompt": form_data.prompt,
|
|
"batch_size": form_data.n,
|
|
"width": width,
|
|
"height": height,
|
|
}
|
|
|
|
if app.state.config.IMAGE_STEPS is not None:
|
|
data["steps"] = app.state.config.IMAGE_STEPS
|
|
|
|
if form_data.negative_prompt is not None:
|
|
data["negative_prompt"] = form_data.negative_prompt
|
|
|
|
r = requests.post(
|
|
url=f"{app.state.config.AUTOMATIC1111_BASE_URL}/sdapi/v1/txt2img",
|
|
json=data,
|
|
headers={"authorization": get_automatic1111_api_auth()},
|
|
)
|
|
|
|
res = r.json()
|
|
log.debug(f"res: {res}")
|
|
|
|
images = []
|
|
|
|
for image in res["images"]:
|
|
image_filename = save_b64_image(image)
|
|
images.append({"url": f"/cache/image/generations/{image_filename}"})
|
|
file_body_path = IMAGE_CACHE_DIR.joinpath(f"{image_filename}.json")
|
|
|
|
with open(file_body_path, "w") as f:
|
|
json.dump({**data, "info": res["info"]}, f)
|
|
|
|
return images
|
|
|
|
except Exception as e:
|
|
error = e
|
|
if r != None:
|
|
data = r.json()
|
|
if "error" in data:
|
|
error = data["error"]["message"]
|
|
raise HTTPException(status_code=400, detail=ERROR_MESSAGES.DEFAULT(error))
|