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server.py 32.01 KiB
import os
import sys
import asyncio
import traceback
import nodes
import folder_paths
import execution
import uuid
import urllib
import json
import glob
import struct
import ssl
from PIL import Image, ImageOps
from PIL.PngImagePlugin import PngInfo
from io import BytesIO
import aiohttp
from aiohttp import web
import logging
import mimetypes
from comfy.cli_args import args
import comfy.utils
import comfy.model_management
import node_helpers
from app.frontend_management import FrontendManager
from app.user_manager import UserManager
from model_filemanager import download_model, DownloadModelStatus
from typing import Optional
from api_server.routes.internal.internal_routes import InternalRoutes
class BinaryEventTypes:
PREVIEW_IMAGE = 1
UNENCODED_PREVIEW_IMAGE = 2
async def send_socket_catch_exception(function, message):
try:
await function(message)
except (aiohttp.ClientError, aiohttp.ClientPayloadError, ConnectionResetError) as err:
logging.warning("send error: {}".format(err))
def get_comfyui_version():
comfyui_version = "unknown"
repo_path = os.path.dirname(os.path.realpath(__file__))
try:
import pygit2
repo = pygit2.Repository(repo_path)
comfyui_version = repo.describe(describe_strategy=pygit2.GIT_DESCRIBE_TAGS)
except Exception:
try:
import subprocess
comfyui_version = subprocess.check_output(["git", "describe", "--tags"], cwd=repo_path).decode('utf-8')
except Exception as e:
logging.warning(f"Failed to get ComfyUI version: {e}")
return comfyui_version.strip()
@web.middleware
async def cache_control(request: web.Request, handler):
response: web.Response = await handler(request)
if request.path.endswith('.js') or request.path.endswith('.css'):
response.headers.setdefault('Cache-Control', 'no-cache')
return response
def create_cors_middleware(allowed_origin: str):
@web.middleware
async def cors_middleware(request: web.Request, handler):
if request.method == "OPTIONS":
# Pre-flight request. Reply successfully:
response = web.Response()
else:
response = await handler(request)
response.headers['Access-Control-Allow-Origin'] = allowed_origin
response.headers['Access-Control-Allow-Methods'] = 'POST, GET, DELETE, PUT, OPTIONS'
response.headers['Access-Control-Allow-Headers'] = 'Content-Type, Authorization'
response.headers['Access-Control-Allow-Credentials'] = 'true'
return response
return cors_middleware
class PromptServer():
def __init__(self, loop):
PromptServer.instance = self
mimetypes.init()
mimetypes.types_map['.js'] = 'application/javascript; charset=utf-8'
self.user_manager = UserManager()
self.internal_routes = InternalRoutes()
self.supports = ["custom_nodes_from_web"]
self.prompt_queue = None
self.loop = loop
self.messages = asyncio.Queue()
self.client_session:Optional[aiohttp.ClientSession] = None
self.number = 0
middlewares = [cache_control]
if args.enable_cors_header:
middlewares.append(create_cors_middleware(args.enable_cors_header))
max_upload_size = round(args.max_upload_size * 1024 * 1024)
self.app = web.Application(client_max_size=max_upload_size, middlewares=middlewares)
self.sockets = dict()
self.web_root = (
FrontendManager.init_frontend(args.front_end_version)
if args.front_end_root is None
else args.front_end_root
)
logging.info(f"[Prompt Server] web root: {self.web_root}")
routes = web.RouteTableDef()
self.routes = routes
self.last_node_id = None
self.client_id = None
self.on_prompt_handlers = []
@routes.get('/ws')
async def websocket_handler(request):
ws = web.WebSocketResponse()
await ws.prepare(request)
sid = request.rel_url.query.get('clientId', '')
if sid:
# Reusing existing session, remove old
self.sockets.pop(sid, None)
else:
sid = uuid.uuid4().hex
self.sockets[sid] = ws
try:
# Send initial state to the new client
await self.send("status", { "status": self.get_queue_info(), 'sid': sid }, sid)
# On reconnect if we are the currently executing client send the current node
if self.client_id == sid and self.last_node_id is not None:
await self.send("executing", { "node": self.last_node_id }, sid)
async for msg in ws:
if msg.type == aiohttp.WSMsgType.ERROR:
logging.warning('ws connection closed with exception %s' % ws.exception())
finally:
self.sockets.pop(sid, None)
return ws
@routes.get("/")
async def get_root(request):
response = web.FileResponse(os.path.join(self.web_root, "index.html"))
response.headers['Cache-Control'] = 'no-cache'
response.headers["Pragma"] = "no-cache"
response.headers["Expires"] = "0"
return response
@routes.get("/embeddings")
def get_embeddings(self):
embeddings = folder_paths.get_filename_list("embeddings")
return web.json_response(list(map(lambda a: os.path.splitext(a)[0], embeddings)))
@routes.get("/models/{folder}")
async def get_models(request):
folder = request.match_info.get("folder", None)
if not folder in folder_paths.folder_names_and_paths:
return web.Response(status=404)
files = folder_paths.get_filename_list(folder)
return web.json_response(files)
@routes.get("/extensions")
async def get_extensions(request):
files = glob.glob(os.path.join(
glob.escape(self.web_root), 'extensions/**/*.js'), recursive=True)
extensions = list(map(lambda f: "/" + os.path.relpath(f, self.web_root).replace("\\", "/"), files))
for name, dir in nodes.EXTENSION_WEB_DIRS.items():
files = glob.glob(os.path.join(glob.escape(dir), '**/*.js'), recursive=True)
extensions.extend(list(map(lambda f: "/extensions/" + urllib.parse.quote(
name) + "/" + os.path.relpath(f, dir).replace("\\", "/"), files)))
return web.json_response(extensions)
def get_dir_by_type(dir_type):
if dir_type is None:
dir_type = "input"
if dir_type == "input":
type_dir = folder_paths.get_input_directory()
elif dir_type == "temp":
type_dir = folder_paths.get_temp_directory()
elif dir_type == "output":
type_dir = folder_paths.get_output_directory()
return type_dir, dir_type
def compare_image_hash(filepath, image):
hasher = node_helpers.hasher()
# function to compare hashes of two images to see if it already exists, fix to #3465
if os.path.exists(filepath):
a = hasher()
b = hasher()
with open(filepath, "rb") as f:
a.update(f.read())
b.update(image.file.read())
image.file.seek(0)
f.close()
return a.hexdigest() == b.hexdigest()
return False
def image_upload(post, image_save_function=None):
image = post.get("image")
overwrite = post.get("overwrite")
image_is_duplicate = False
image_upload_type = post.get("type")
upload_dir, image_upload_type = get_dir_by_type(image_upload_type)
if image and image.file:
filename = image.filename
if not filename:
return web.Response(status=400)
subfolder = post.get("subfolder", "")
full_output_folder = os.path.join(upload_dir, os.path.normpath(subfolder))
filepath = os.path.abspath(os.path.join(full_output_folder, filename))
if os.path.commonpath((upload_dir, filepath)) != upload_dir:
return web.Response(status=400)
if not os.path.exists(full_output_folder):
os.makedirs(full_output_folder)
split = os.path.splitext(filename)
if overwrite is not None and (overwrite == "true" or overwrite == "1"):
pass
else:
i = 1
while os.path.exists(filepath):
if compare_image_hash(filepath, image): #compare hash to prevent saving of duplicates with same name, fix for #3465
image_is_duplicate = True
break
filename = f"{split[0]} ({i}){split[1]}"
filepath = os.path.join(full_output_folder, filename)
i += 1
if not image_is_duplicate:
if image_save_function is not None:
image_save_function(image, post, filepath)
else:
with open(filepath, "wb") as f:
f.write(image.file.read())
return web.json_response({"name" : filename, "subfolder": subfolder, "type": image_upload_type})
else:
return web.Response(status=400)
@routes.post("/upload/image")
async def upload_image(request):
post = await request.post()
return image_upload(post)
@routes.post("/upload/mask")
async def upload_mask(request):
post = await request.post()
def image_save_function(image, post, filepath):
original_ref = json.loads(post.get("original_ref"))
filename, output_dir = folder_paths.annotated_filepath(original_ref['filename'])
# validation for security: prevent accessing arbitrary path
if filename[0] == '/' or '..' in filename:
return web.Response(status=400)
if output_dir is None:
type = original_ref.get("type", "output")
output_dir = folder_paths.get_directory_by_type(type)
if output_dir is None:
return web.Response(status=400)
if original_ref.get("subfolder", "") != "":
full_output_dir = os.path.join(output_dir, original_ref["subfolder"])
if os.path.commonpath((os.path.abspath(full_output_dir), output_dir)) != output_dir:
return web.Response(status=403)
output_dir = full_output_dir
file = os.path.join(output_dir, filename)
if os.path.isfile(file):
with Image.open(file) as original_pil:
metadata = PngInfo()
if hasattr(original_pil,'text'):
for key in original_pil.text:
metadata.add_text(key, original_pil.text[key])
original_pil = original_pil.convert('RGBA')
mask_pil = Image.open(image.file).convert('RGBA')
# alpha copy
new_alpha = mask_pil.getchannel('A')
original_pil.putalpha(new_alpha)
original_pil.save(filepath, compress_level=4, pnginfo=metadata)
return image_upload(post, image_save_function)
@routes.get("/view")
async def view_image(request):
if "filename" in request.rel_url.query:
filename = request.rel_url.query["filename"]
filename,output_dir = folder_paths.annotated_filepath(filename)
# validation for security: prevent accessing arbitrary path
if filename[0] == '/' or '..' in filename:
return web.Response(status=400)
if output_dir is None:
type = request.rel_url.query.get("type", "output")
output_dir = folder_paths.get_directory_by_type(type)
if output_dir is None:
return web.Response(status=400)
if "subfolder" in request.rel_url.query:
full_output_dir = os.path.join(output_dir, request.rel_url.query["subfolder"])
if os.path.commonpath((os.path.abspath(full_output_dir), output_dir)) != output_dir:
return web.Response(status=403)
output_dir = full_output_dir
filename = os.path.basename(filename)
file = os.path.join(output_dir, filename)
if os.path.isfile(file):
if 'preview' in request.rel_url.query:
with Image.open(file) as img:
preview_info = request.rel_url.query['preview'].split(';')
image_format = preview_info[0]
if image_format not in ['webp', 'jpeg'] or 'a' in request.rel_url.query.get('channel', ''):
image_format = 'webp'
quality = 90
if preview_info[-1].isdigit():
quality = int(preview_info[-1])
buffer = BytesIO()
if image_format in ['jpeg'] or request.rel_url.query.get('channel', '') == 'rgb':
img = img.convert("RGB")
img.save(buffer, format=image_format, quality=quality)
buffer.seek(0)
return web.Response(body=buffer.read(), content_type=f'image/{image_format}',
headers={"Content-Disposition": f"filename=\"{filename}\""})
if 'channel' not in request.rel_url.query:
channel = 'rgba'
else:
channel = request.rel_url.query["channel"]
if channel == 'rgb':
with Image.open(file) as img:
if img.mode == "RGBA":
r, g, b, a = img.split()
new_img = Image.merge('RGB', (r, g, b))
else:
new_img = img.convert("RGB")
buffer = BytesIO()
new_img.save(buffer, format='PNG')
buffer.seek(0)
return web.Response(body=buffer.read(), content_type='image/png',
headers={"Content-Disposition": f"filename=\"{filename}\""})
elif channel == 'a':
with Image.open(file) as img:
if img.mode == "RGBA":
_, _, _, a = img.split()
else:
a = Image.new('L', img.size, 255)
# alpha img
alpha_img = Image.new('RGBA', img.size)
alpha_img.putalpha(a)
alpha_buffer = BytesIO()
alpha_img.save(alpha_buffer, format='PNG')
alpha_buffer.seek(0)
return web.Response(body=alpha_buffer.read(), content_type='image/png',
headers={"Content-Disposition": f"filename=\"{filename}\""})
else:
return web.FileResponse(file, headers={"Content-Disposition": f"filename=\"{filename}\""})
return web.Response(status=404)
@routes.get("/view_metadata/{folder_name}")
async def view_metadata(request):
folder_name = request.match_info.get("folder_name", None)
if folder_name is None:
return web.Response(status=404)
if not "filename" in request.rel_url.query:
return web.Response(status=404)
filename = request.rel_url.query["filename"]
if not filename.endswith(".safetensors"):
return web.Response(status=404)
safetensors_path = folder_paths.get_full_path(folder_name, filename)
if safetensors_path is None:
return web.Response(status=404)
out = comfy.utils.safetensors_header(safetensors_path, max_size=1024*1024)
if out is None:
return web.Response(status=404)
dt = json.loads(out)
if not "__metadata__" in dt:
return web.Response(status=404)
return web.json_response(dt["__metadata__"])
@routes.get("/system_stats")
async def system_stats(request):
device = comfy.model_management.get_torch_device()
device_name = comfy.model_management.get_torch_device_name(device)
vram_total, torch_vram_total = comfy.model_management.get_total_memory(device, torch_total_too=True)
vram_free, torch_vram_free = comfy.model_management.get_free_memory(device, torch_free_too=True)
system_stats = {
"system": {
"os": os.name,
"comfyui_version": get_comfyui_version(),
"python_version": sys.version,
"pytorch_version": comfy.model_management.torch_version,
"embedded_python": os.path.split(os.path.split(sys.executable)[0])[1] == "python_embeded",
"argv": sys.argv
},
"devices": [
{
"name": device_name,
"type": device.type,
"index": device.index,
"vram_total": vram_total,
"vram_free": vram_free,
"torch_vram_total": torch_vram_total,
"torch_vram_free": torch_vram_free,
}
]
}
return web.json_response(system_stats)
@routes.get("/prompt")
async def get_prompt(request):
return web.json_response(self.get_queue_info())
def node_info(node_class):
obj_class = nodes.NODE_CLASS_MAPPINGS[node_class]
info = {}
info['input'] = obj_class.INPUT_TYPES()
info['input_order'] = {key: list(value.keys()) for (key, value) in obj_class.INPUT_TYPES().items()}
info['output'] = obj_class.RETURN_TYPES
info['output_is_list'] = obj_class.OUTPUT_IS_LIST if hasattr(obj_class, 'OUTPUT_IS_LIST') else [False] * len(obj_class.RETURN_TYPES)
info['output_name'] = obj_class.RETURN_NAMES if hasattr(obj_class, 'RETURN_NAMES') else info['output']
info['name'] = node_class
info['display_name'] = nodes.NODE_DISPLAY_NAME_MAPPINGS[node_class] if node_class in nodes.NODE_DISPLAY_NAME_MAPPINGS.keys() else node_class
info['description'] = obj_class.DESCRIPTION if hasattr(obj_class,'DESCRIPTION') else ''
info['python_module'] = getattr(obj_class, "RELATIVE_PYTHON_MODULE", "nodes")
info['category'] = 'sd'
if hasattr(obj_class, 'OUTPUT_NODE') and obj_class.OUTPUT_NODE == True:
info['output_node'] = True
else:
info['output_node'] = False
if hasattr(obj_class, 'CATEGORY'):
info['category'] = obj_class.CATEGORY
if hasattr(obj_class, 'OUTPUT_TOOLTIPS'):
info['output_tooltips'] = obj_class.OUTPUT_TOOLTIPS
if getattr(obj_class, "DEPRECATED", False):
info['deprecated'] = True
if getattr(obj_class, "EXPERIMENTAL", False):
info['experimental'] = True
return info
@routes.get("/object_info")
async def get_object_info(request):
out = {}
for x in nodes.NODE_CLASS_MAPPINGS:
try:
out[x] = node_info(x)
except Exception as e:
logging.error(f"[ERROR] An error occurred while retrieving information for the '{x}' node.")
logging.error(traceback.format_exc())
return web.json_response(out)
@routes.get("/object_info/{node_class}")
async def get_object_info_node(request):
node_class = request.match_info.get("node_class", None)
out = {}
if (node_class is not None) and (node_class in nodes.NODE_CLASS_MAPPINGS):
out[node_class] = node_info(node_class)
return web.json_response(out)
@routes.get("/history")
async def get_history(request):
max_items = request.rel_url.query.get("max_items", None)
if max_items is not None:
max_items = int(max_items)
return web.json_response(self.prompt_queue.get_history(max_items=max_items))
@routes.get("/history/{prompt_id}")
async def get_history(request):
prompt_id = request.match_info.get("prompt_id", None)
return web.json_response(self.prompt_queue.get_history(prompt_id=prompt_id))
@routes.get("/queue")
async def get_queue(request):
queue_info = {}
current_queue = self.prompt_queue.get_current_queue()
queue_info['queue_running'] = current_queue[0]
queue_info['queue_pending'] = current_queue[1]
return web.json_response(queue_info)
@routes.post("/prompt")
async def post_prompt(request):
logging.info("got prompt")
resp_code = 200
out_string = ""
json_data = await request.json()
json_data = self.trigger_on_prompt(json_data)
if "number" in json_data:
number = float(json_data['number'])
else:
number = self.number
if "front" in json_data:
if json_data['front']:
number = -number
self.number += 1
if "prompt" in json_data:
prompt = json_data["prompt"]
valid = execution.validate_prompt(prompt)
extra_data = {}
if "extra_data" in json_data:
extra_data = json_data["extra_data"]
if "client_id" in json_data:
extra_data["client_id"] = json_data["client_id"]
if valid[0]:
prompt_id = str(uuid.uuid4())
outputs_to_execute = valid[2]
self.prompt_queue.put((number, prompt_id, prompt, extra_data, outputs_to_execute))
response = {"prompt_id": prompt_id, "number": number, "node_errors": valid[3]}
return web.json_response(response)
else:
logging.warning("invalid prompt: {}".format(valid[1]))
return web.json_response({"error": valid[1], "node_errors": valid[3]}, status=400)
else:
return web.json_response({"error": "no prompt", "node_errors": []}, status=400)
@routes.post("/queue")
async def post_queue(request):
json_data = await request.json()
if "clear" in json_data:
if json_data["clear"]:
self.prompt_queue.wipe_queue()
if "delete" in json_data:
to_delete = json_data['delete']
for id_to_delete in to_delete:
delete_func = lambda a: a[1] == id_to_delete
self.prompt_queue.delete_queue_item(delete_func)
return web.Response(status=200)
@routes.post("/interrupt")
async def post_interrupt(request):
nodes.interrupt_processing()
return web.Response(status=200)
@routes.post("/free")
async def post_free(request):
json_data = await request.json()
unload_models = json_data.get("unload_models", False)
free_memory = json_data.get("free_memory", False)
if unload_models:
self.prompt_queue.set_flag("unload_models", unload_models)
if free_memory:
self.prompt_queue.set_flag("free_memory", free_memory)
return web.Response(status=200)
@routes.post("/history")
async def post_history(request):
json_data = await request.json()
if "clear" in json_data:
if json_data["clear"]:
self.prompt_queue.wipe_history()
if "delete" in json_data:
to_delete = json_data['delete']
for id_to_delete in to_delete:
self.prompt_queue.delete_history_item(id_to_delete)
return web.Response(status=200)
# Internal route. Should not be depended upon and is subject to change at any time.
# TODO(robinhuang): Move to internal route table class once we refactor PromptServer to pass around Websocket.
@routes.post("/internal/models/download")
async def download_handler(request):
async def report_progress(filename: str, status: DownloadModelStatus):
payload = status.to_dict()
payload['download_path'] = filename
await self.send_json("download_progress", payload)
data = await request.json()
url = data.get('url')
model_directory = data.get('model_directory')
model_filename = data.get('model_filename')
progress_interval = data.get('progress_interval', 1.0) # In seconds, how often to report download progress.
if not url or not model_directory or not model_filename:
return web.json_response({"status": "error", "message": "Missing URL or folder path or filename"}, status=400)
session = self.client_session
if session is None:
logging.error("Client session is not initialized")
return web.Response(status=500)
task = asyncio.create_task(download_model(lambda url: session.get(url), model_filename, url, model_directory, report_progress, progress_interval))
await task
return web.json_response(task.result().to_dict())
async def setup(self):
timeout = aiohttp.ClientTimeout(total=None) # no timeout
self.client_session = aiohttp.ClientSession(timeout=timeout)
def add_routes(self):
self.user_manager.add_routes(self.routes)
self.app.add_subapp('/internal', self.internal_routes.get_app())
# Prefix every route with /api for easier matching for delegation.
# This is very useful for frontend dev server, which need to forward
# everything except serving of static files.
# Currently both the old endpoints without prefix and new endpoints with
# prefix are supported.
api_routes = web.RouteTableDef()
for route in self.routes:
# Custom nodes might add extra static routes. Only process non-static
# routes to add /api prefix.
if isinstance(route, web.RouteDef):
api_routes.route(route.method, "/api" + route.path)(route.handler, **route.kwargs)
self.app.add_routes(api_routes)
self.app.add_routes(self.routes)
for name, dir in nodes.EXTENSION_WEB_DIRS.items():
self.app.add_routes([
web.static('/extensions/' + urllib.parse.quote(name), dir),
])
self.app.add_routes([
web.static('/', self.web_root),
])
def get_queue_info(self):
prompt_info = {}
exec_info = {}
exec_info['queue_remaining'] = self.prompt_queue.get_tasks_remaining()
prompt_info['exec_info'] = exec_info
return prompt_info
async def send(self, event, data, sid=None):
if event == BinaryEventTypes.UNENCODED_PREVIEW_IMAGE:
await self.send_image(data, sid=sid)
elif isinstance(data, (bytes, bytearray)):
await self.send_bytes(event, data, sid)
else:
await self.send_json(event, data, sid)
def encode_bytes(self, event, data):
if not isinstance(event, int):
raise RuntimeError(f"Binary event types must be integers, got {event}")
packed = struct.pack(">I", event)
message = bytearray(packed)
message.extend(data)
return message
async def send_image(self, image_data, sid=None):
image_type = image_data[0]
image = image_data[1]
max_size = image_data[2]
if max_size is not None:
if hasattr(Image, 'Resampling'):
resampling = Image.Resampling.BILINEAR
else:
resampling = Image.ANTIALIAS
image = ImageOps.contain(image, (max_size, max_size), resampling)
type_num = 1
if image_type == "JPEG":
type_num = 1
elif image_type == "PNG":
type_num = 2
bytesIO = BytesIO()
header = struct.pack(">I", type_num)
bytesIO.write(header)
image.save(bytesIO, format=image_type, quality=95, compress_level=1)
preview_bytes = bytesIO.getvalue()
await self.send_bytes(BinaryEventTypes.PREVIEW_IMAGE, preview_bytes, sid=sid)
async def send_bytes(self, event, data, sid=None):
message = self.encode_bytes(event, data)
if sid is None:
sockets = list(self.sockets.values())
for ws in sockets:
await send_socket_catch_exception(ws.send_bytes, message)
elif sid in self.sockets:
await send_socket_catch_exception(self.sockets[sid].send_bytes, message)
async def send_json(self, event, data, sid=None):
message = {"type": event, "data": data}
if sid is None:
sockets = list(self.sockets.values())
for ws in sockets:
await send_socket_catch_exception(ws.send_json, message)
elif sid in self.sockets:
await send_socket_catch_exception(self.sockets[sid].send_json, message)
def send_sync(self, event, data, sid=None):
self.loop.call_soon_threadsafe(
self.messages.put_nowait, (event, data, sid))
def queue_updated(self):
self.send_sync("status", { "status": self.get_queue_info() })
async def publish_loop(self):
while True:
msg = await self.messages.get()
await self.send(*msg)
async def start(self, address, port, verbose=True, call_on_start=None):
runner = web.AppRunner(self.app, access_log=None)
await runner.setup()
ssl_ctx = None
scheme = "http"
if args.tls_keyfile and args.tls_certfile:
ssl_ctx = ssl.SSLContext(protocol=ssl.PROTOCOL_TLS_SERVER, verify_mode=ssl.CERT_NONE)
ssl_ctx.load_cert_chain(certfile=args.tls_certfile,
keyfile=args.tls_keyfile)
scheme = "https"
site = web.TCPSite(runner, address, port, ssl_context=ssl_ctx)
await site.start()
self.address = address
self.port = port
if verbose:
logging.info("Starting server\n")
logging.info("To see the GUI go to: {}://{}:{}".format(scheme, address, port))
if call_on_start is not None:
call_on_start(scheme, address, port)
def add_on_prompt_handler(self, handler):
self.on_prompt_handlers.append(handler)
def trigger_on_prompt(self, json_data):
for handler in self.on_prompt_handlers:
try:
json_data = handler(json_data)
except Exception as e:
logging.warning(f"[ERROR] An error occurred during the on_prompt_handler processing")
logging.warning(traceback.format_exc())
return json_data