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Work-in-progress refactor of the backend, to move most of the logic to diffusion-kit and keeping this as a UI around that engine. Does not work yet.

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cmdr2
2022-12-07 22:15:35 +05:30
parent bfdf487d52
commit fb6a7e04f5
7 changed files with 484 additions and 417 deletions
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396
ui/server.py
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@ -2,64 +2,21 @@
Notes:
async endpoints always run on the main thread. Without they run on the thread pool.
"""
import json
import traceback
import sys
import os
import socket
import picklescan.scanner
import rich
SD_DIR = os.getcwd()
print('started in ', SD_DIR)
SD_UI_DIR = os.getenv('SD_UI_PATH', None)
sys.path.append(os.path.dirname(SD_UI_DIR))
CONFIG_DIR = os.path.abspath(os.path.join(SD_UI_DIR, '..', 'scripts'))
MODELS_DIR = os.path.abspath(os.path.join(SD_DIR, '..', 'models'))
USER_UI_PLUGINS_DIR = os.path.abspath(os.path.join(SD_DIR, '..', 'plugins', 'ui'))
CORE_UI_PLUGINS_DIR = os.path.abspath(os.path.join(SD_UI_DIR, 'plugins', 'ui'))
UI_PLUGINS_SOURCES = ((CORE_UI_PLUGINS_DIR, 'core'), (USER_UI_PLUGINS_DIR, 'user'))
STABLE_DIFFUSION_MODEL_EXTENSIONS = ['.ckpt', '.safetensors']
VAE_MODEL_EXTENSIONS = ['.vae.pt', '.ckpt']
HYPERNETWORK_MODEL_EXTENSIONS = ['.pt']
OUTPUT_DIRNAME = "Stable Diffusion UI" # in the user's home folder
TASK_TTL = 15 * 60 # Discard last session's task timeout
APP_CONFIG_DEFAULTS = {
# auto: selects the cuda device with the most free memory, cuda: use the currently active cuda device.
'render_devices': 'auto', # valid entries: 'auto', 'cpu' or 'cuda:N' (where N is a GPU index)
'update_branch': 'main',
'ui': {
'open_browser_on_start': True,
},
}
APP_CONFIG_DEFAULT_MODELS = [
# needed to support the legacy installations
'custom-model', # Check if user has a custom model, use it first.
'sd-v1-4', # Default fallback.
]
import traceback
import logging
from typing import List, Union
from fastapi import FastAPI, HTTPException
from fastapi.staticfiles import StaticFiles
from starlette.responses import FileResponse, JSONResponse, StreamingResponse
from pydantic import BaseModel
import logging
#import queue, threading, time
from typing import Any, Generator, Hashable, List, Optional, Union
from sd_internal import Request, Response, task_manager
from sd_internal import app, model_manager, task_manager
app = FastAPI()
print('started in ', app.SD_DIR)
modifiers_cache = None
outpath = os.path.join(os.path.expanduser("~"), OUTPUT_DIRNAME)
os.makedirs(USER_UI_PLUGINS_DIR, exist_ok=True)
server_api = FastAPI()
# don't show access log entries for URLs that start with the given prefix
ACCESS_LOG_SUPPRESS_PATH_PREFIXES = ['/ping', '/image', '/modifier-thumbnails']
@ -74,132 +31,6 @@ class NoCacheStaticFiles(StaticFiles):
return super().is_not_modified(response_headers, request_headers)
app.mount('/media', NoCacheStaticFiles(directory=os.path.join(SD_UI_DIR, 'media')), name="media")
for plugins_dir, dir_prefix in UI_PLUGINS_SOURCES:
app.mount(f'/plugins/{dir_prefix}', NoCacheStaticFiles(directory=plugins_dir), name=f"plugins-{dir_prefix}")
def getConfig(default_val=APP_CONFIG_DEFAULTS):
try:
config_json_path = os.path.join(CONFIG_DIR, 'config.json')
if not os.path.exists(config_json_path):
return default_val
with open(config_json_path, 'r', encoding='utf-8') as f:
config = json.load(f)
if 'net' not in config:
config['net'] = {}
if os.getenv('SD_UI_BIND_PORT') is not None:
config['net']['listen_port'] = int(os.getenv('SD_UI_BIND_PORT'))
if os.getenv('SD_UI_BIND_IP') is not None:
config['net']['listen_to_network'] = ( os.getenv('SD_UI_BIND_IP') == '0.0.0.0' )
return config
except Exception as e:
print(str(e))
print(traceback.format_exc())
return default_val
def setConfig(config):
print( json.dumps(config) )
try: # config.json
config_json_path = os.path.join(CONFIG_DIR, 'config.json')
with open(config_json_path, 'w', encoding='utf-8') as f:
json.dump(config, f)
except:
print(traceback.format_exc())
try: # config.bat
config_bat_path = os.path.join(CONFIG_DIR, 'config.bat')
config_bat = []
if 'update_branch' in config:
config_bat.append(f"@set update_branch={config['update_branch']}")
config_bat.append(f"@set SD_UI_BIND_PORT={config['net']['listen_port']}")
bind_ip = '0.0.0.0' if config['net']['listen_to_network'] else '127.0.0.1'
config_bat.append(f"@set SD_UI_BIND_IP={bind_ip}")
config_bat.append(f"@set test_sd2={'Y' if config.get('test_sd2', False) else 'N'}")
if len(config_bat) > 0:
with open(config_bat_path, 'w', encoding='utf-8') as f:
f.write('\r\n'.join(config_bat))
except:
print(traceback.format_exc())
try: # config.sh
config_sh_path = os.path.join(CONFIG_DIR, 'config.sh')
config_sh = ['#!/bin/bash']
if 'update_branch' in config:
config_sh.append(f"export update_branch={config['update_branch']}")
config_sh.append(f"export SD_UI_BIND_PORT={config['net']['listen_port']}")
bind_ip = '0.0.0.0' if config['net']['listen_to_network'] else '127.0.0.1'
config_sh.append(f"export SD_UI_BIND_IP={bind_ip}")
config_sh.append(f"export test_sd2=\"{'Y' if config.get('test_sd2', False) else 'N'}\"")
if len(config_sh) > 1:
with open(config_sh_path, 'w', encoding='utf-8') as f:
f.write('\n'.join(config_sh))
except:
print(traceback.format_exc())
def resolve_model_to_use(model_name:str, model_type:str, model_dir:str, model_extensions:list, default_models=[]):
config = getConfig()
model_dirs = [os.path.join(MODELS_DIR, model_dir), SD_DIR]
if not model_name: # When None try user configured model.
# config = getConfig()
if 'model' in config and model_type in config['model']:
model_name = config['model'][model_type]
if model_name:
is_sd2 = config.get('test_sd2', False)
if model_name.startswith('sd2_') and not is_sd2: # temp hack, until SD2 is unified with 1.4
print('ERROR: Cannot use SD 2.0 models with SD 1.0 code. Using the sd-v1-4 model instead!')
model_name = 'sd-v1-4'
# Check models directory
models_dir_path = os.path.join(MODELS_DIR, model_dir, model_name)
for model_extension in model_extensions:
if os.path.exists(models_dir_path + model_extension):
return models_dir_path
if os.path.exists(model_name + model_extension):
# Direct Path to file
model_name = os.path.abspath(model_name)
return model_name
# Default locations
if model_name in default_models:
default_model_path = os.path.join(SD_DIR, model_name)
for model_extension in model_extensions:
if os.path.exists(default_model_path + model_extension):
return default_model_path
# Can't find requested model, check the default paths.
for default_model in default_models:
for model_dir in model_dirs:
default_model_path = os.path.join(model_dir, default_model)
for model_extension in model_extensions:
if os.path.exists(default_model_path + model_extension):
if model_name is not None:
print(f'Could not find the configured custom model {model_name}{model_extension}. Using the default one: {default_model_path}{model_extension}')
return default_model_path
raise Exception('No valid models found.')
def resolve_ckpt_to_use(model_name:str=None):
return resolve_model_to_use(model_name, model_type='stable-diffusion', model_dir='stable-diffusion', model_extensions=STABLE_DIFFUSION_MODEL_EXTENSIONS, default_models=APP_CONFIG_DEFAULT_MODELS)
def resolve_vae_to_use(model_name:str=None):
try:
return resolve_model_to_use(model_name, model_type='vae', model_dir='vae', model_extensions=VAE_MODEL_EXTENSIONS, default_models=[])
except:
return None
def resolve_hypernetwork_to_use(model_name:str=None):
try:
return resolve_model_to_use(model_name, model_type='hypernetwork', model_dir='hypernetwork', model_extensions=HYPERNETWORK_MODEL_EXTENSIONS, default_models=[])
except:
return None
class SetAppConfigRequest(BaseModel):
update_branch: str = None
render_devices: Union[List[str], List[int], str, int] = None
@ -209,9 +40,25 @@ class SetAppConfigRequest(BaseModel):
listen_port: int = None
test_sd2: bool = None
@app.post('/app_config')
class LogSuppressFilter(logging.Filter):
def filter(self, record: logging.LogRecord) -> bool:
path = record.getMessage()
for prefix in ACCESS_LOG_SUPPRESS_PATH_PREFIXES:
if path.find(prefix) != -1:
return False
return True
# don't log certain requests
logging.getLogger('uvicorn.access').addFilter(LogSuppressFilter())
server_api.mount('/media', NoCacheStaticFiles(directory=os.path.join(app.SD_UI_DIR, 'media')), name="media")
for plugins_dir, dir_prefix in app.UI_PLUGINS_SOURCES:
app.mount(f'/plugins/{dir_prefix}', NoCacheStaticFiles(directory=plugins_dir), name=f"plugins-{dir_prefix}")
@server_api.post('/app_config')
async def setAppConfig(req : SetAppConfigRequest):
config = getConfig()
config = app.getConfig()
if req.update_branch is not None:
config['update_branch'] = req.update_branch
if req.render_devices is not None:
@ -231,121 +78,48 @@ async def setAppConfig(req : SetAppConfigRequest):
if req.test_sd2 is not None:
config['test_sd2'] = req.test_sd2
try:
setConfig(config)
app.setConfig(config)
if req.render_devices:
update_render_threads()
app.update_render_threads()
return JSONResponse({'status': 'OK'}, headers=NOCACHE_HEADERS)
except Exception as e:
print(traceback.format_exc())
raise HTTPException(status_code=500, detail=str(e))
def is_malicious_model(file_path):
try:
scan_result = picklescan.scanner.scan_file_path(file_path)
if scan_result.issues_count > 0 or scan_result.infected_files > 0:
rich.print(":warning: [bold red]Scan %s: %d scanned, %d issue, %d infected.[/bold red]" % (file_path, scan_result.scanned_files, scan_result.issues_count, scan_result.infected_files))
return True
else:
rich.print("Scan %s: [green]%d scanned, %d issue, %d infected.[/green]" % (file_path, scan_result.scanned_files, scan_result.issues_count, scan_result.infected_files))
return False
except Exception as e:
print('error while scanning', file_path, 'error:', e)
return False
def update_render_devices_in_config(config, render_devices):
if render_devices not in ('cpu', 'auto') and not render_devices.startswith('cuda:'):
raise HTTPException(status_code=400, detail=f'Invalid render device requested: {render_devices}')
known_models = {}
def getModels():
models = {
'active': {
'stable-diffusion': 'sd-v1-4',
'vae': '',
'hypernetwork': '',
},
'options': {
'stable-diffusion': ['sd-v1-4'],
'vae': [],
'hypernetwork': [],
},
}
if render_devices.startswith('cuda:'):
render_devices = render_devices.split(',')
def listModels(models_dirname, model_type, model_extensions):
models_dir = os.path.join(MODELS_DIR, models_dirname)
if not os.path.exists(models_dir):
os.makedirs(models_dir)
config['render_devices'] = render_devices
for file in os.listdir(models_dir):
for model_extension in model_extensions:
if not file.endswith(model_extension):
continue
model_path = os.path.join(models_dir, file)
mtime = os.path.getmtime(model_path)
mod_time = known_models[model_path] if model_path in known_models else -1
if mod_time != mtime:
if is_malicious_model(model_path):
models['scan-error'] = file
return
known_models[model_path] = mtime
model_name = file[:-len(model_extension)]
models['options'][model_type].append(model_name)
models['options'][model_type] = [*set(models['options'][model_type])] # remove duplicates
models['options'][model_type].sort()
# custom models
listModels(models_dirname='stable-diffusion', model_type='stable-diffusion', model_extensions=STABLE_DIFFUSION_MODEL_EXTENSIONS)
listModels(models_dirname='vae', model_type='vae', model_extensions=VAE_MODEL_EXTENSIONS)
listModels(models_dirname='hypernetwork', model_type='hypernetwork', model_extensions=HYPERNETWORK_MODEL_EXTENSIONS)
# legacy
custom_weight_path = os.path.join(SD_DIR, 'custom-model.ckpt')
if os.path.exists(custom_weight_path):
models['options']['stable-diffusion'].append('custom-model')
return models
def getUIPlugins():
plugins = []
for plugins_dir, dir_prefix in UI_PLUGINS_SOURCES:
for file in os.listdir(plugins_dir):
if file.endswith('.plugin.js'):
plugins.append(f'/plugins/{dir_prefix}/{file}')
return plugins
def getIPConfig():
ips = socket.gethostbyname_ex(socket.gethostname())
ips[2].append(ips[0])
return ips[2]
@app.get('/get/{key:path}')
@server_api.get('/get/{key:path}')
def read_web_data(key:str=None):
if not key: # /get without parameters, stable-diffusion easter egg.
raise HTTPException(status_code=418, detail="StableDiffusion is drawing a teapot!") # HTTP418 I'm a teapot
elif key == 'app_config':
config = getConfig(default_val=None)
if config is None:
config = APP_CONFIG_DEFAULTS
return JSONResponse(config, headers=NOCACHE_HEADERS)
return JSONResponse(app.getConfig(), headers=NOCACHE_HEADERS)
elif key == 'system_info':
config = getConfig()
config = app.getConfig()
system_info = {
'devices': task_manager.get_devices(),
'hosts': getIPConfig(),
'hosts': app.getIPConfig(),
'default_output_dir': os.path.join(os.path.expanduser("~"), app.OUTPUT_DIRNAME),
}
system_info['devices']['config'] = config.get('render_devices', "auto")
return JSONResponse(system_info, headers=NOCACHE_HEADERS)
elif key == 'models':
return JSONResponse(getModels(), headers=NOCACHE_HEADERS)
elif key == 'modifiers': return FileResponse(os.path.join(SD_UI_DIR, 'modifiers.json'), headers=NOCACHE_HEADERS)
elif key == 'output_dir': return JSONResponse({ 'output_dir': outpath }, headers=NOCACHE_HEADERS)
elif key == 'ui_plugins': return JSONResponse(getUIPlugins(), headers=NOCACHE_HEADERS)
return JSONResponse(model_manager.getModels(), headers=NOCACHE_HEADERS)
elif key == 'modifiers': return FileResponse(os.path.join(app.SD_UI_DIR, 'modifiers.json'), headers=NOCACHE_HEADERS)
elif key == 'ui_plugins': return JSONResponse(app.getUIPlugins(), headers=NOCACHE_HEADERS)
else:
raise HTTPException(status_code=404, detail=f'Request for unknown {key}') # HTTP404 Not Found
@app.get('/ping') # Get server and optionally session status.
@server_api.get('/ping') # Get server and optionally session status.
def ping(session_id:str=None):
if task_manager.is_alive() <= 0: # Check that render threads are alive.
if task_manager.current_state_error: raise HTTPException(status_code=500, detail=str(task_manager.current_state_error))
@ -372,38 +146,14 @@ def ping(session_id:str=None):
response['devices'] = task_manager.get_devices()
return JSONResponse(response, headers=NOCACHE_HEADERS)
def save_model_to_config(ckpt_model_name, vae_model_name, hypernetwork_model_name):
config = getConfig()
if 'model' not in config:
config['model'] = {}
config['model']['stable-diffusion'] = ckpt_model_name
config['model']['vae'] = vae_model_name
config['model']['hypernetwork'] = hypernetwork_model_name
if vae_model_name is None or vae_model_name == "":
del config['model']['vae']
if hypernetwork_model_name is None or hypernetwork_model_name == "":
del config['model']['hypernetwork']
setConfig(config)
def update_render_devices_in_config(config, render_devices):
if render_devices not in ('cpu', 'auto') and not render_devices.startswith('cuda:'):
raise HTTPException(status_code=400, detail=f'Invalid render device requested: {render_devices}')
if render_devices.startswith('cuda:'):
render_devices = render_devices.split(',')
config['render_devices'] = render_devices
@app.post('/render')
@server_api.post('/render')
def render(req : task_manager.ImageRequest):
try:
save_model_to_config(req.use_stable_diffusion_model, req.use_vae_model, req.use_hypernetwork_model)
req.use_stable_diffusion_model = resolve_ckpt_to_use(req.use_stable_diffusion_model)
req.use_vae_model = resolve_vae_to_use(req.use_vae_model)
req.use_hypernetwork_model = resolve_hypernetwork_to_use(req.use_hypernetwork_model)
app.save_model_to_config(req.use_stable_diffusion_model, req.use_vae_model, req.use_hypernetwork_model)
req.use_stable_diffusion_model = model_manager.resolve_ckpt_to_use(req.use_stable_diffusion_model)
req.use_vae_model = model_manager.resolve_vae_to_use(req.use_vae_model)
req.use_hypernetwork_model = model_manager.resolve_hypernetwork_to_use(req.use_hypernetwork_model)
new_task = task_manager.render(req)
response = {
'status': str(task_manager.current_state),
@ -419,7 +169,7 @@ def render(req : task_manager.ImageRequest):
except Exception as e:
raise HTTPException(status_code=500, detail=str(e))
@app.get('/image/stream/{session_id:str}/{task_id:int}')
@server_api.get('/image/stream/{session_id:str}/{task_id:int}')
def stream(session_id:str, task_id:int):
#TODO Move to WebSockets ??
task = task_manager.get_cached_task(session_id, update_ttl=True)
@ -433,7 +183,7 @@ def stream(session_id:str, task_id:int):
#print(f'Session {session_id} opened live render stream {id(task.buffer_queue)}')
return StreamingResponse(task.read_buffer_generator(), media_type='application/json')
@app.get('/image/stop')
@server_api.get('/image/stop')
def stop(session_id:str=None):
if not session_id:
if task_manager.current_state == task_manager.ServerStates.Online or task_manager.current_state == task_manager.ServerStates.Unavailable:
@ -446,7 +196,7 @@ def stop(session_id:str=None):
task.error = StopAsyncIteration('')
return {'OK'}
@app.get('/image/tmp/{session_id}/{img_id:int}')
@server_api.get('/image/tmp/{session_id}/{img_id:int}')
def get_image(session_id, img_id):
task = task_manager.get_cached_task(session_id, update_ttl=True)
if not task: raise HTTPException(status_code=410, detail=f'Session {session_id} has not submitted a task.') # HTTP410 Gone
@ -458,49 +208,17 @@ def get_image(session_id, img_id):
except KeyError as e:
raise HTTPException(status_code=500, detail=str(e))
@app.get('/')
@server_api.get('/')
def read_root():
return FileResponse(os.path.join(SD_UI_DIR, 'index.html'), headers=NOCACHE_HEADERS)
return FileResponse(os.path.join(app.SD_UI_DIR, 'index.html'), headers=NOCACHE_HEADERS)
@app.on_event("shutdown")
@server_api.on_event("shutdown")
def shutdown_event(): # Signal render thread to close on shutdown
task_manager.current_state_error = SystemExit('Application shutting down.')
# don't log certain requests
class LogSuppressFilter(logging.Filter):
def filter(self, record: logging.LogRecord) -> bool:
path = record.getMessage()
for prefix in ACCESS_LOG_SUPPRESS_PATH_PREFIXES:
if path.find(prefix) != -1:
return False
return True
logging.getLogger('uvicorn.access').addFilter(LogSuppressFilter())
# Check models and prepare cache for UI open
getModels()
# Start the task_manager
task_manager.default_model_to_load = resolve_ckpt_to_use()
task_manager.default_vae_to_load = resolve_vae_to_use()
task_manager.default_hypernetwork_to_load = resolve_hypernetwork_to_use()
def update_render_threads():
config = getConfig()
render_devices = config.get('render_devices', 'auto')
active_devices = task_manager.get_devices()['active'].keys()
print('requesting for render_devices', render_devices)
task_manager.update_render_threads(render_devices, active_devices)
update_render_threads()
# Init the app
model_manager.init()
app.init()
# start the browser ui
def open_browser():
config = getConfig()
ui = config.get('ui', {})
net = config.get('net', {'listen_port':9000})
port = net.get('listen_port', 9000)
if ui.get('open_browser_on_start', True):
import webbrowser; webbrowser.open(f"http://localhost:{port}")
open_browser()
app.open_browser()