refac: mv backend files to /open_webui dir

This commit is contained in:
Timothy J. Baek
2024-09-04 16:54:48 +02:00
parent 76806a998f
commit 03d5a670f6
118 changed files with 361 additions and 309 deletions
+555
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import asyncio
import base64
import json
import logging
import mimetypes
import re
import uuid
from pathlib import Path
from typing import Optional
import requests
from open_webui.apps.images.utils.comfyui import (
ComfyUIGenerateImageForm,
ComfyUIWorkflow,
comfyui_generate_image,
)
from open_webui.config import (
AUTOMATIC1111_API_AUTH,
AUTOMATIC1111_BASE_URL,
CACHE_DIR,
COMFYUI_BASE_URL,
COMFYUI_WORKFLOW,
COMFYUI_WORKFLOW_NODES,
CORS_ALLOW_ORIGIN,
ENABLE_IMAGE_GENERATION,
IMAGE_GENERATION_ENGINE,
IMAGE_GENERATION_MODEL,
IMAGE_SIZE,
IMAGE_STEPS,
IMAGES_OPENAI_API_BASE_URL,
IMAGES_OPENAI_API_KEY,
AppConfig,
)
from open_webui.constants import ERROR_MESSAGES
from open_webui.env import SRC_LOG_LEVELS
from fastapi import Depends, FastAPI, HTTPException, Request
from fastapi.middleware.cors import CORSMiddleware
from pydantic import BaseModel
from open_webui.utils.utils import get_admin_user, get_verified_user
log = logging.getLogger(__name__)
log.setLevel(SRC_LOG_LEVELS["IMAGES"])
IMAGE_CACHE_DIR = Path(CACHE_DIR).joinpath("./image/generations/")
IMAGE_CACHE_DIR.mkdir(parents=True, exist_ok=True)
app = FastAPI()
app.add_middleware(
CORSMiddleware,
allow_origins=CORS_ALLOW_ORIGIN,
allow_credentials=True,
allow_methods=["*"],
allow_headers=["*"],
)
app.state.config = AppConfig()
app.state.config.ENGINE = IMAGE_GENERATION_ENGINE
app.state.config.ENABLED = ENABLE_IMAGE_GENERATION
app.state.config.OPENAI_API_BASE_URL = IMAGES_OPENAI_API_BASE_URL
app.state.config.OPENAI_API_KEY = IMAGES_OPENAI_API_KEY
app.state.config.MODEL = IMAGE_GENERATION_MODEL
app.state.config.AUTOMATIC1111_BASE_URL = AUTOMATIC1111_BASE_URL
app.state.config.AUTOMATIC1111_API_AUTH = AUTOMATIC1111_API_AUTH
app.state.config.COMFYUI_BASE_URL = COMFYUI_BASE_URL
app.state.config.COMFYUI_WORKFLOW = COMFYUI_WORKFLOW
app.state.config.COMFYUI_WORKFLOW_NODES = COMFYUI_WORKFLOW_NODES
app.state.config.IMAGE_SIZE = IMAGE_SIZE
app.state.config.IMAGE_STEPS = IMAGE_STEPS
@app.get("/config")
async def get_config(request: Request, user=Depends(get_admin_user)):
return {
"enabled": app.state.config.ENABLED,
"engine": app.state.config.ENGINE,
"openai": {
"OPENAI_API_BASE_URL": app.state.config.OPENAI_API_BASE_URL,
"OPENAI_API_KEY": app.state.config.OPENAI_API_KEY,
},
"automatic1111": {
"AUTOMATIC1111_BASE_URL": app.state.config.AUTOMATIC1111_BASE_URL,
"AUTOMATIC1111_API_AUTH": app.state.config.AUTOMATIC1111_API_AUTH,
},
"comfyui": {
"COMFYUI_BASE_URL": app.state.config.COMFYUI_BASE_URL,
"COMFYUI_WORKFLOW": app.state.config.COMFYUI_WORKFLOW,
"COMFYUI_WORKFLOW_NODES": app.state.config.COMFYUI_WORKFLOW_NODES,
},
}
class OpenAIConfigForm(BaseModel):
OPENAI_API_BASE_URL: str
OPENAI_API_KEY: str
class Automatic1111ConfigForm(BaseModel):
AUTOMATIC1111_BASE_URL: str
AUTOMATIC1111_API_AUTH: str
class ComfyUIConfigForm(BaseModel):
COMFYUI_BASE_URL: str
COMFYUI_WORKFLOW: str
COMFYUI_WORKFLOW_NODES: list[dict]
class ConfigForm(BaseModel):
enabled: bool
engine: str
openai: OpenAIConfigForm
automatic1111: Automatic1111ConfigForm
comfyui: ComfyUIConfigForm
@app.post("/config/update")
async def update_config(form_data: ConfigForm, user=Depends(get_admin_user)):
app.state.config.ENGINE = form_data.engine
app.state.config.ENABLED = form_data.enabled
app.state.config.OPENAI_API_BASE_URL = form_data.openai.OPENAI_API_BASE_URL
app.state.config.OPENAI_API_KEY = form_data.openai.OPENAI_API_KEY
app.state.config.AUTOMATIC1111_BASE_URL = (
form_data.automatic1111.AUTOMATIC1111_BASE_URL
)
app.state.config.AUTOMATIC1111_API_AUTH = (
form_data.automatic1111.AUTOMATIC1111_API_AUTH
)
app.state.config.COMFYUI_BASE_URL = form_data.comfyui.COMFYUI_BASE_URL.strip("/")
app.state.config.COMFYUI_WORKFLOW = form_data.comfyui.COMFYUI_WORKFLOW
app.state.config.COMFYUI_WORKFLOW_NODES = form_data.comfyui.COMFYUI_WORKFLOW_NODES
return {
"enabled": app.state.config.ENABLED,
"engine": app.state.config.ENGINE,
"openai": {
"OPENAI_API_BASE_URL": app.state.config.OPENAI_API_BASE_URL,
"OPENAI_API_KEY": app.state.config.OPENAI_API_KEY,
},
"automatic1111": {
"AUTOMATIC1111_BASE_URL": app.state.config.AUTOMATIC1111_BASE_URL,
"AUTOMATIC1111_API_AUTH": app.state.config.AUTOMATIC1111_API_AUTH,
},
"comfyui": {
"COMFYUI_BASE_URL": app.state.config.COMFYUI_BASE_URL,
"COMFYUI_WORKFLOW": app.state.config.COMFYUI_WORKFLOW,
"COMFYUI_WORKFLOW_NODES": app.state.config.COMFYUI_WORKFLOW_NODES,
},
}
def get_automatic1111_api_auth():
if app.state.config.AUTOMATIC1111_API_AUTH is None:
return ""
else:
auth1111_byte_string = app.state.config.AUTOMATIC1111_API_AUTH.encode("utf-8")
auth1111_base64_encoded_bytes = base64.b64encode(auth1111_byte_string)
auth1111_base64_encoded_string = auth1111_base64_encoded_bytes.decode("utf-8")
return f"Basic {auth1111_base64_encoded_string}"
@app.get("/config/url/verify")
async def verify_url(user=Depends(get_admin_user)):
if app.state.config.ENGINE == "automatic1111":
try:
r = requests.get(
url=f"{app.state.config.AUTOMATIC1111_BASE_URL}/sdapi/v1/options",
headers={"authorization": get_automatic1111_api_auth()},
)
r.raise_for_status()
return True
except Exception:
app.state.config.ENABLED = False
raise HTTPException(status_code=400, detail=ERROR_MESSAGES.INVALID_URL)
elif app.state.config.ENGINE == "comfyui":
try:
r = requests.get(url=f"{app.state.config.COMFYUI_BASE_URL}/object_info")
r.raise_for_status()
return True
except Exception:
app.state.config.ENABLED = False
raise HTTPException(status_code=400, detail=ERROR_MESSAGES.INVALID_URL)
else:
return True
def set_image_model(model: str):
log.info(f"Setting image model to {model}")
app.state.config.MODEL = model
if app.state.config.ENGINE in ["", "automatic1111"]:
api_auth = get_automatic1111_api_auth()
r = requests.get(
url=f"{app.state.config.AUTOMATIC1111_BASE_URL}/sdapi/v1/options",
headers={"authorization": api_auth},
)
options = r.json()
if model != options["sd_model_checkpoint"]:
options["sd_model_checkpoint"] = model
r = requests.post(
url=f"{app.state.config.AUTOMATIC1111_BASE_URL}/sdapi/v1/options",
json=options,
headers={"authorization": api_auth},
)
return app.state.config.MODEL
def get_image_model():
if app.state.config.ENGINE == "openai":
return app.state.config.MODEL if app.state.config.MODEL else "dall-e-2"
elif app.state.config.ENGINE == "comfyui":
return app.state.config.MODEL if app.state.config.MODEL else ""
elif app.state.config.ENGINE == "automatic1111" or app.state.config.ENGINE == "":
try:
r = requests.get(
url=f"{app.state.config.AUTOMATIC1111_BASE_URL}/sdapi/v1/options",
headers={"authorization": get_automatic1111_api_auth()},
)
options = r.json()
return options["sd_model_checkpoint"]
except Exception as e:
app.state.config.ENABLED = False
raise HTTPException(status_code=400, detail=ERROR_MESSAGES.DEFAULT(e))
class ImageConfigForm(BaseModel):
MODEL: str
IMAGE_SIZE: str
IMAGE_STEPS: int
@app.get("/image/config")
async def get_image_config(user=Depends(get_admin_user)):
return {
"MODEL": app.state.config.MODEL,
"IMAGE_SIZE": app.state.config.IMAGE_SIZE,
"IMAGE_STEPS": app.state.config.IMAGE_STEPS,
}
@app.post("/image/config/update")
async def update_image_config(form_data: ImageConfigForm, user=Depends(get_admin_user)):
set_image_model(form_data.MODEL)
pattern = r"^\d+x\d+$"
if re.match(pattern, form_data.IMAGE_SIZE):
app.state.config.IMAGE_SIZE = form_data.IMAGE_SIZE
else:
raise HTTPException(
status_code=400,
detail=ERROR_MESSAGES.INCORRECT_FORMAT(" (e.g., 512x512)."),
)
if form_data.IMAGE_STEPS >= 0:
app.state.config.IMAGE_STEPS = form_data.IMAGE_STEPS
else:
raise HTTPException(
status_code=400,
detail=ERROR_MESSAGES.INCORRECT_FORMAT(" (e.g., 50)."),
)
return {
"MODEL": app.state.config.MODEL,
"IMAGE_SIZE": app.state.config.IMAGE_SIZE,
"IMAGE_STEPS": app.state.config.IMAGE_STEPS,
}
@app.get("/models")
def get_models(user=Depends(get_verified_user)):
try:
if app.state.config.ENGINE == "openai":
return [
{"id": "dall-e-2", "name": "DALL·E 2"},
{"id": "dall-e-3", "name": "DALL·E 3"},
]
elif app.state.config.ENGINE == "comfyui":
# TODO - get models from comfyui
r = requests.get(url=f"{app.state.config.COMFYUI_BASE_URL}/object_info")
info = r.json()
workflow = json.loads(app.state.config.COMFYUI_WORKFLOW)
model_node_id = None
for node in app.state.config.COMFYUI_WORKFLOW_NODES:
if node["type"] == "model":
if node["node_ids"]:
model_node_id = node["node_ids"][0]
break
if model_node_id:
model_list_key = None
print(workflow[model_node_id]["class_type"])
for key in info[workflow[model_node_id]["class_type"]]["input"][
"required"
]:
if "_name" in key:
model_list_key = key
break
if model_list_key:
return list(
map(
lambda model: {"id": model, "name": model},
info[workflow[model_node_id]["class_type"]]["input"][
"required"
][model_list_key][0],
)
)
else:
return list(
map(
lambda model: {"id": model, "name": model},
info["CheckpointLoaderSimple"]["input"]["required"][
"ckpt_name"
][0],
)
)
elif (
app.state.config.ENGINE == "automatic1111" or app.state.config.ENGINE == ""
):
r = requests.get(
url=f"{app.state.config.AUTOMATIC1111_BASE_URL}/sdapi/v1/sd-models",
headers={"authorization": get_automatic1111_api_auth()},
)
models = r.json()
return list(
map(
lambda model: {"id": model["title"], "name": model["model_name"]},
models,
)
)
except Exception as e:
app.state.config.ENABLED = False
raise HTTPException(status_code=400, detail=ERROR_MESSAGES.DEFAULT(e))
class GenerateImageForm(BaseModel):
model: Optional[str] = None
prompt: str
size: Optional[str] = None
n: int = 1
negative_prompt: Optional[str] = None
def save_b64_image(b64_str):
try:
image_id = str(uuid.uuid4())
if "," in b64_str:
header, encoded = b64_str.split(",", 1)
mime_type = header.split(";")[0]
img_data = base64.b64decode(encoded)
image_format = mimetypes.guess_extension(mime_type)
image_filename = f"{image_id}{image_format}"
file_path = IMAGE_CACHE_DIR / f"{image_filename}"
with open(file_path, "wb") as f:
f.write(img_data)
return image_filename
else:
image_filename = f"{image_id}.png"
file_path = IMAGE_CACHE_DIR.joinpath(image_filename)
img_data = base64.b64decode(b64_str)
# Write the image data to a file
with open(file_path, "wb") as f:
f.write(img_data)
return image_filename
except Exception as e:
log.exception(f"Error saving image: {e}")
return None
def save_url_image(url):
image_id = str(uuid.uuid4())
try:
r = requests.get(url)
r.raise_for_status()
if r.headers["content-type"].split("/")[0] == "image":
mime_type = r.headers["content-type"]
image_format = mimetypes.guess_extension(mime_type)
if not image_format:
raise ValueError("Could not determine image type from MIME type")
image_filename = f"{image_id}{image_format}"
file_path = IMAGE_CACHE_DIR.joinpath(f"{image_filename}")
with open(file_path, "wb") as image_file:
for chunk in r.iter_content(chunk_size=8192):
image_file.write(chunk)
return image_filename
else:
log.error("Url does not point to an image.")
return None
except Exception as e:
log.exception(f"Error saving image: {e}")
return None
@app.post("/generations")
async def image_generations(
form_data: GenerateImageForm,
user=Depends(get_verified_user),
):
width, height = tuple(map(int, app.state.config.IMAGE_SIZE.split("x")))
r = None
try:
if app.state.config.ENGINE == "openai":
headers = {}
headers["Authorization"] = f"Bearer {app.state.config.OPENAI_API_KEY}"
headers["Content-Type"] = "application/json"
data = {
"model": (
app.state.config.MODEL
if app.state.config.MODEL != ""
else "dall-e-2"
),
"prompt": form_data.prompt,
"n": form_data.n,
"size": (
form_data.size if form_data.size else app.state.config.IMAGE_SIZE
),
"response_format": "b64_json",
}
r = requests.post(
url=f"{app.state.config.OPENAI_API_BASE_URL}/images/generations",
json=data,
headers=headers,
)
r.raise_for_status()
res = r.json()
images = []
for image in res["data"]:
image_filename = save_b64_image(image["b64_json"])
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, f)
return images
elif app.state.config.ENGINE == "comfyui":
data = {
"prompt": form_data.prompt,
"width": width,
"height": height,
"n": form_data.n,
}
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
form_data = ComfyUIGenerateImageForm(
**{
"workflow": ComfyUIWorkflow(
**{
"workflow": app.state.config.COMFYUI_WORKFLOW,
"nodes": app.state.config.COMFYUI_WORKFLOW_NODES,
}
),
**data,
}
)
res = await comfyui_generate_image(
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
# Use asyncio.to_thread for the requests.post call
r = await asyncio.to_thread(
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))
@@ -0,0 +1,174 @@
import asyncio
import json
import logging
import random
import urllib.parse
import urllib.request
from typing import Optional
import websocket # NOTE: websocket-client (https://github.com/websocket-client/websocket-client)
from open_webui.env import SRC_LOG_LEVELS
from pydantic import BaseModel
log = logging.getLogger(__name__)
log.setLevel(SRC_LOG_LEVELS["COMFYUI"])
default_headers = {"User-Agent": "Mozilla/5.0"}
def queue_prompt(prompt, client_id, base_url):
log.info("queue_prompt")
p = {"prompt": prompt, "client_id": client_id}
data = json.dumps(p).encode("utf-8")
log.debug(f"queue_prompt data: {data}")
try:
req = urllib.request.Request(
f"{base_url}/prompt", data=data, headers=default_headers
)
response = urllib.request.urlopen(req).read()
return json.loads(response)
except Exception as e:
log.exception(f"Error while queuing prompt: {e}")
raise e
def get_image(filename, subfolder, folder_type, base_url):
log.info("get_image")
data = {"filename": filename, "subfolder": subfolder, "type": folder_type}
url_values = urllib.parse.urlencode(data)
req = urllib.request.Request(
f"{base_url}/view?{url_values}", headers=default_headers
)
with urllib.request.urlopen(req) as response:
return response.read()
def get_image_url(filename, subfolder, folder_type, base_url):
log.info("get_image")
data = {"filename": filename, "subfolder": subfolder, "type": folder_type}
url_values = urllib.parse.urlencode(data)
return f"{base_url}/view?{url_values}"
def get_history(prompt_id, base_url):
log.info("get_history")
req = urllib.request.Request(
f"{base_url}/history/{prompt_id}", headers=default_headers
)
with urllib.request.urlopen(req) as response:
return json.loads(response.read())
def get_images(ws, prompt, client_id, base_url):
prompt_id = queue_prompt(prompt, client_id, base_url)["prompt_id"]
output_images = []
while True:
out = ws.recv()
if isinstance(out, str):
message = json.loads(out)
if message["type"] == "executing":
data = message["data"]
if data["node"] is None and data["prompt_id"] == prompt_id:
break # Execution is done
else:
continue # previews are binary data
history = get_history(prompt_id, base_url)[prompt_id]
for o in history["outputs"]:
for node_id in history["outputs"]:
node_output = history["outputs"][node_id]
if "images" in node_output:
for image in node_output["images"]:
url = get_image_url(
image["filename"], image["subfolder"], image["type"], base_url
)
output_images.append({"url": url})
return {"data": output_images}
class ComfyUINodeInput(BaseModel):
type: Optional[str] = None
node_ids: list[str] = []
key: Optional[str] = "text"
value: Optional[str] = None
class ComfyUIWorkflow(BaseModel):
workflow: str
nodes: list[ComfyUINodeInput]
class ComfyUIGenerateImageForm(BaseModel):
workflow: ComfyUIWorkflow
prompt: str
negative_prompt: Optional[str] = None
width: int
height: int
n: int = 1
steps: Optional[int] = None
seed: Optional[int] = None
async def comfyui_generate_image(
model: str, payload: ComfyUIGenerateImageForm, client_id, base_url
):
ws_url = base_url.replace("http://", "ws://").replace("https://", "wss://")
workflow = json.loads(payload.workflow.workflow)
for node in payload.workflow.nodes:
if node.type:
if node.type == "model":
for node_id in node.node_ids:
workflow[node_id]["inputs"][node.key] = model
elif node.type == "prompt":
for node_id in node.node_ids:
workflow[node_id]["inputs"]["text"] = payload.prompt
elif node.type == "negative_prompt":
for node_id in node.node_ids:
workflow[node_id]["inputs"]["text"] = payload.negative_prompt
elif node.type == "width":
for node_id in node.node_ids:
workflow[node_id]["inputs"]["width"] = payload.width
elif node.type == "height":
for node_id in node.node_ids:
workflow[node_id]["inputs"]["height"] = payload.height
elif node.type == "n":
for node_id in node.node_ids:
workflow[node_id]["inputs"]["batch_size"] = payload.n
elif node.type == "steps":
for node_id in node.node_ids:
workflow[node_id]["inputs"]["steps"] = payload.steps
elif node.type == "seed":
seed = (
payload.seed
if payload.seed
else random.randint(0, 18446744073709551614)
)
for node_id in node.node_ids:
workflow[node_id]["inputs"][node.key] = seed
else:
for node_id in node.node_ids:
workflow[node_id]["inputs"][node.key] = node.value
try:
ws = websocket.WebSocket()
ws.connect(f"{ws_url}/ws?clientId={client_id}")
log.info("WebSocket connection established.")
except Exception as e:
log.exception(f"Failed to connect to WebSocket server: {e}")
return None
try:
log.info("Sending workflow to WebSocket server.")
log.info(f"Workflow: {workflow}")
images = await asyncio.to_thread(get_images, ws, workflow, client_id, base_url)
except Exception as e:
log.exception(f"Error while receiving images: {e}")
images = None
ws.close()
return images