stable-diffusion-webui/modules/api/api.py

550 lines
24 KiB
Python

import base64
import io
import time
import datetime
import uvicorn
from threading import Lock
from io import BytesIO
from gradio.processing_utils import decode_base64_to_file
from fastapi import APIRouter, Depends, FastAPI, HTTPException, Request, Response
from fastapi.security import HTTPBasic, HTTPBasicCredentials
from secrets import compare_digest
import modules.shared as shared
from modules import sd_samplers, deepbooru, sd_hijack, images, scripts, ui, postprocessing
from modules.api.models import *
from modules.processing import StableDiffusionProcessingTxt2Img, StableDiffusionProcessingImg2Img, process_images
from modules.textual_inversion.textual_inversion import create_embedding, train_embedding
from modules.textual_inversion.preprocess import preprocess
from modules.hypernetworks.hypernetwork import create_hypernetwork, train_hypernetwork
from PIL import PngImagePlugin,Image
from modules.sd_models import checkpoints_list, find_checkpoint_config
from modules.realesrgan_model import get_realesrgan_models
from modules import devices
from typing import List
import piexif
import piexif.helper
def upscaler_to_index(name: str):
try:
return [x.name.lower() for x in shared.sd_upscalers].index(name.lower())
except:
raise HTTPException(status_code=400, detail=f"Invalid upscaler, needs to be one of these: {' , '.join([x.name for x in sd_upscalers])}")
def script_name_to_index(name, scripts):
try:
return [script.title().lower() for script in scripts].index(name.lower())
except:
raise HTTPException(status_code=422, detail=f"Script '{name}' not found")
def validate_sampler_name(name):
config = sd_samplers.all_samplers_map.get(name, None)
if config is None:
raise HTTPException(status_code=404, detail="Sampler not found")
return name
def setUpscalers(req: dict):
reqDict = vars(req)
reqDict['extras_upscaler_1'] = reqDict.pop('upscaler_1', None)
reqDict['extras_upscaler_2'] = reqDict.pop('upscaler_2', None)
return reqDict
def decode_base64_to_image(encoding):
if encoding.startswith("data:image/"):
encoding = encoding.split(";")[1].split(",")[1]
try:
image = Image.open(BytesIO(base64.b64decode(encoding)))
return image
except Exception as err:
raise HTTPException(status_code=500, detail="Invalid encoded image")
def encode_pil_to_base64(image):
with io.BytesIO() as output_bytes:
if opts.samples_format.lower() == 'png':
use_metadata = False
metadata = PngImagePlugin.PngInfo()
for key, value in image.info.items():
if isinstance(key, str) and isinstance(value, str):
metadata.add_text(key, value)
use_metadata = True
image.save(output_bytes, format="PNG", pnginfo=(metadata if use_metadata else None), quality=opts.jpeg_quality)
elif opts.samples_format.lower() in ("jpg", "jpeg", "webp"):
parameters = image.info.get('parameters', None)
exif_bytes = piexif.dump({
"Exif": { piexif.ExifIFD.UserComment: piexif.helper.UserComment.dump(parameters or "", encoding="unicode") }
})
if opts.samples_format.lower() in ("jpg", "jpeg"):
image.save(output_bytes, format="JPEG", exif = exif_bytes, quality=opts.jpeg_quality)
else:
image.save(output_bytes, format="WEBP", exif = exif_bytes, quality=opts.jpeg_quality)
else:
raise HTTPException(status_code=500, detail="Invalid image format")
bytes_data = output_bytes.getvalue()
return base64.b64encode(bytes_data)
def api_middleware(app: FastAPI):
@app.middleware("http")
async def log_and_time(req: Request, call_next):
ts = time.time()
res: Response = await call_next(req)
duration = str(round(time.time() - ts, 4))
res.headers["X-Process-Time"] = duration
endpoint = req.scope.get('path', 'err')
if shared.cmd_opts.api_log and endpoint.startswith('/sdapi'):
print('API {t} {code} {prot}/{ver} {method} {endpoint} {cli} {duration}'.format(
t = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S.%f"),
code = res.status_code,
ver = req.scope.get('http_version', '0.0'),
cli = req.scope.get('client', ('0:0.0.0', 0))[0],
prot = req.scope.get('scheme', 'err'),
method = req.scope.get('method', 'err'),
endpoint = endpoint,
duration = duration,
))
return res
class Api:
def __init__(self, app: FastAPI, queue_lock: Lock):
if shared.cmd_opts.api_auth:
self.credentials = dict()
for auth in shared.cmd_opts.api_auth.split(","):
user, password = auth.split(":")
self.credentials[user] = password
self.router = APIRouter()
self.app = app
self.queue_lock = queue_lock
api_middleware(self.app)
self.add_api_route("/sdapi/v1/txt2img", self.text2imgapi, methods=["POST"], response_model=TextToImageResponse)
self.add_api_route("/sdapi/v1/img2img", self.img2imgapi, methods=["POST"], response_model=ImageToImageResponse)
self.add_api_route("/sdapi/v1/extra-single-image", self.extras_single_image_api, methods=["POST"], response_model=ExtrasSingleImageResponse)
self.add_api_route("/sdapi/v1/extra-batch-images", self.extras_batch_images_api, methods=["POST"], response_model=ExtrasBatchImagesResponse)
self.add_api_route("/sdapi/v1/png-info", self.pnginfoapi, methods=["POST"], response_model=PNGInfoResponse)
self.add_api_route("/sdapi/v1/progress", self.progressapi, methods=["GET"], response_model=ProgressResponse)
self.add_api_route("/sdapi/v1/interrogate", self.interrogateapi, methods=["POST"])
self.add_api_route("/sdapi/v1/interrupt", self.interruptapi, methods=["POST"])
self.add_api_route("/sdapi/v1/skip", self.skip, methods=["POST"])
self.add_api_route("/sdapi/v1/options", self.get_config, methods=["GET"], response_model=OptionsModel)
self.add_api_route("/sdapi/v1/options", self.set_config, methods=["POST"])
self.add_api_route("/sdapi/v1/cmd-flags", self.get_cmd_flags, methods=["GET"], response_model=FlagsModel)
self.add_api_route("/sdapi/v1/samplers", self.get_samplers, methods=["GET"], response_model=List[SamplerItem])
self.add_api_route("/sdapi/v1/upscalers", self.get_upscalers, methods=["GET"], response_model=List[UpscalerItem])
self.add_api_route("/sdapi/v1/sd-models", self.get_sd_models, methods=["GET"], response_model=List[SDModelItem])
self.add_api_route("/sdapi/v1/hypernetworks", self.get_hypernetworks, methods=["GET"], response_model=List[HypernetworkItem])
self.add_api_route("/sdapi/v1/face-restorers", self.get_face_restorers, methods=["GET"], response_model=List[FaceRestorerItem])
self.add_api_route("/sdapi/v1/realesrgan-models", self.get_realesrgan_models, methods=["GET"], response_model=List[RealesrganItem])
self.add_api_route("/sdapi/v1/prompt-styles", self.get_prompt_styles, methods=["GET"], response_model=List[PromptStyleItem])
self.add_api_route("/sdapi/v1/embeddings", self.get_embeddings, methods=["GET"], response_model=EmbeddingsResponse)
self.add_api_route("/sdapi/v1/refresh-checkpoints", self.refresh_checkpoints, methods=["POST"])
self.add_api_route("/sdapi/v1/create/embedding", self.create_embedding, methods=["POST"], response_model=CreateResponse)
self.add_api_route("/sdapi/v1/create/hypernetwork", self.create_hypernetwork, methods=["POST"], response_model=CreateResponse)
self.add_api_route("/sdapi/v1/preprocess", self.preprocess, methods=["POST"], response_model=PreprocessResponse)
self.add_api_route("/sdapi/v1/train/embedding", self.train_embedding, methods=["POST"], response_model=TrainResponse)
self.add_api_route("/sdapi/v1/train/hypernetwork", self.train_hypernetwork, methods=["POST"], response_model=TrainResponse)
self.add_api_route("/sdapi/v1/memory", self.get_memory, methods=["GET"], response_model=MemoryResponse)
def add_api_route(self, path: str, endpoint, **kwargs):
if shared.cmd_opts.api_auth:
return self.app.add_api_route(path, endpoint, dependencies=[Depends(self.auth)], **kwargs)
return self.app.add_api_route(path, endpoint, **kwargs)
def auth(self, credentials: HTTPBasicCredentials = Depends(HTTPBasic())):
if credentials.username in self.credentials:
if compare_digest(credentials.password, self.credentials[credentials.username]):
return True
raise HTTPException(status_code=401, detail="Incorrect username or password", headers={"WWW-Authenticate": "Basic"})
def get_script(self, script_name, script_runner):
if script_name is None:
return None, None
if not script_runner.scripts:
script_runner.initialize_scripts(False)
ui.create_ui()
script_idx = script_name_to_index(script_name, script_runner.selectable_scripts)
script = script_runner.selectable_scripts[script_idx]
return script, script_idx
def text2imgapi(self, txt2imgreq: StableDiffusionTxt2ImgProcessingAPI):
script, script_idx = self.get_script(txt2imgreq.script_name, scripts.scripts_txt2img)
populate = txt2imgreq.copy(update={ # Override __init__ params
"sampler_name": validate_sampler_name(txt2imgreq.sampler_name or txt2imgreq.sampler_index),
"do_not_save_samples": True,
"do_not_save_grid": True
}
)
if populate.sampler_name:
populate.sampler_index = None # prevent a warning later on
args = vars(populate)
args.pop('script_name', None)
with self.queue_lock:
p = StableDiffusionProcessingTxt2Img(sd_model=shared.sd_model, **args)
shared.state.begin()
if script is not None:
p.outpath_grids = opts.outdir_txt2img_grids
p.outpath_samples = opts.outdir_txt2img_samples
p.script_args = [script_idx + 1] + [None] * (script.args_from - 1) + p.script_args
processed = scripts.scripts_txt2img.run(p, *p.script_args)
else:
processed = process_images(p)
shared.state.end()
b64images = list(map(encode_pil_to_base64, processed.images))
return TextToImageResponse(images=b64images, parameters=vars(txt2imgreq), info=processed.js())
def img2imgapi(self, img2imgreq: StableDiffusionImg2ImgProcessingAPI):
init_images = img2imgreq.init_images
if init_images is None:
raise HTTPException(status_code=404, detail="Init image not found")
script, script_idx = self.get_script(img2imgreq.script_name, scripts.scripts_img2img)
mask = img2imgreq.mask
if mask:
mask = decode_base64_to_image(mask)
populate = img2imgreq.copy(update={ # Override __init__ params
"sampler_name": validate_sampler_name(img2imgreq.sampler_name or img2imgreq.sampler_index),
"do_not_save_samples": True,
"do_not_save_grid": True,
"mask": mask
}
)
if populate.sampler_name:
populate.sampler_index = None # prevent a warning later on
args = vars(populate)
args.pop('include_init_images', None) # this is meant to be done by "exclude": True in model, but it's for a reason that I cannot determine.
args.pop('script_name', None)
with self.queue_lock:
p = StableDiffusionProcessingImg2Img(sd_model=shared.sd_model, **args)
p.init_images = [decode_base64_to_image(x) for x in init_images]
shared.state.begin()
if script is not None:
p.outpath_grids = opts.outdir_img2img_grids
p.outpath_samples = opts.outdir_img2img_samples
p.script_args = [script_idx + 1] + [None] * (script.args_from - 1) + p.script_args
processed = scripts.scripts_img2img.run(p, *p.script_args)
else:
processed = process_images(p)
shared.state.end()
b64images = list(map(encode_pil_to_base64, processed.images))
if not img2imgreq.include_init_images:
img2imgreq.init_images = None
img2imgreq.mask = None
return ImageToImageResponse(images=b64images, parameters=vars(img2imgreq), info=processed.js())
def extras_single_image_api(self, req: ExtrasSingleImageRequest):
reqDict = setUpscalers(req)
reqDict['image'] = decode_base64_to_image(reqDict['image'])
with self.queue_lock:
result = postprocessing.run_extras(extras_mode=0, image_folder="", input_dir="", output_dir="", save_output=False, **reqDict)
return ExtrasSingleImageResponse(image=encode_pil_to_base64(result[0][0]), html_info=result[1])
def extras_batch_images_api(self, req: ExtrasBatchImagesRequest):
reqDict = setUpscalers(req)
def prepareFiles(file):
file = decode_base64_to_file(file.data, file_path=file.name)
file.orig_name = file.name
return file
reqDict['image_folder'] = list(map(prepareFiles, reqDict['imageList']))
reqDict.pop('imageList')
with self.queue_lock:
result = postprocessing.run_extras(extras_mode=1, image="", input_dir="", output_dir="", save_output=False, **reqDict)
return ExtrasBatchImagesResponse(images=list(map(encode_pil_to_base64, result[0])), html_info=result[1])
def pnginfoapi(self, req: PNGInfoRequest):
if(not req.image.strip()):
return PNGInfoResponse(info="")
image = decode_base64_to_image(req.image.strip())
if image is None:
return PNGInfoResponse(info="")
geninfo, items = images.read_info_from_image(image)
if geninfo is None:
geninfo = ""
items = {**{'parameters': geninfo}, **items}
return PNGInfoResponse(info=geninfo, items=items)
def progressapi(self, req: ProgressRequest = Depends()):
# copy from check_progress_call of ui.py
if shared.state.job_count == 0:
return ProgressResponse(progress=0, eta_relative=0, state=shared.state.dict(), textinfo=shared.state.textinfo)
# avoid dividing zero
progress = 0.01
if shared.state.job_count > 0:
progress += shared.state.job_no / shared.state.job_count
if shared.state.sampling_steps > 0:
progress += 1 / shared.state.job_count * shared.state.sampling_step / shared.state.sampling_steps
time_since_start = time.time() - shared.state.time_start
eta = (time_since_start/progress)
eta_relative = eta-time_since_start
progress = min(progress, 1)
shared.state.set_current_image()
current_image = None
if shared.state.current_image and not req.skip_current_image:
current_image = encode_pil_to_base64(shared.state.current_image)
return ProgressResponse(progress=progress, eta_relative=eta_relative, state=shared.state.dict(), current_image=current_image, textinfo=shared.state.textinfo)
def interrogateapi(self, interrogatereq: InterrogateRequest):
image_b64 = interrogatereq.image
if image_b64 is None:
raise HTTPException(status_code=404, detail="Image not found")
img = decode_base64_to_image(image_b64)
img = img.convert('RGB')
# Override object param
with self.queue_lock:
if interrogatereq.model == "clip":
processed = shared.interrogator.interrogate(img)
elif interrogatereq.model == "deepdanbooru":
processed = deepbooru.model.tag(img)
else:
raise HTTPException(status_code=404, detail="Model not found")
return InterrogateResponse(caption=processed)
def interruptapi(self):
shared.state.interrupt()
return {}
def skip(self):
shared.state.skip()
def get_config(self):
options = {}
for key in shared.opts.data.keys():
metadata = shared.opts.data_labels.get(key)
if(metadata is not None):
options.update({key: shared.opts.data.get(key, shared.opts.data_labels.get(key).default)})
else:
options.update({key: shared.opts.data.get(key, None)})
return options
def set_config(self, req: Dict[str, Any]):
for k, v in req.items():
shared.opts.set(k, v)
shared.opts.save(shared.config_filename)
return
def get_cmd_flags(self):
return vars(shared.cmd_opts)
def get_samplers(self):
return [{"name": sampler[0], "aliases":sampler[2], "options":sampler[3]} for sampler in sd_samplers.all_samplers]
def get_upscalers(self):
return [
{
"name": upscaler.name,
"model_name": upscaler.scaler.model_name,
"model_path": upscaler.data_path,
"model_url": None,
"scale": upscaler.scale,
}
for upscaler in shared.sd_upscalers
]
def get_sd_models(self):
return [{"title": x.title, "model_name": x.model_name, "hash": x.shorthash, "sha256": x.sha256, "filename": x.filename, "config": find_checkpoint_config(x)} for x in checkpoints_list.values()]
def get_hypernetworks(self):
return [{"name": name, "path": shared.hypernetworks[name]} for name in shared.hypernetworks]
def get_face_restorers(self):
return [{"name":x.name(), "cmd_dir": getattr(x, "cmd_dir", None)} for x in shared.face_restorers]
def get_realesrgan_models(self):
return [{"name":x.name,"path":x.data_path, "scale":x.scale} for x in get_realesrgan_models(None)]
def get_prompt_styles(self):
styleList = []
for k in shared.prompt_styles.styles:
style = shared.prompt_styles.styles[k]
styleList.append({"name":style[0], "prompt": style[1], "negative_prompt": style[2]})
return styleList
def get_embeddings(self):
db = sd_hijack.model_hijack.embedding_db
def convert_embedding(embedding):
return {
"step": embedding.step,
"sd_checkpoint": embedding.sd_checkpoint,
"sd_checkpoint_name": embedding.sd_checkpoint_name,
"shape": embedding.shape,
"vectors": embedding.vectors,
}
def convert_embeddings(embeddings):
return {embedding.name: convert_embedding(embedding) for embedding in embeddings.values()}
return {
"loaded": convert_embeddings(db.word_embeddings),
"skipped": convert_embeddings(db.skipped_embeddings),
}
def refresh_checkpoints(self):
shared.refresh_checkpoints()
def create_embedding(self, args: dict):
try:
shared.state.begin()
filename = create_embedding(**args) # create empty embedding
sd_hijack.model_hijack.embedding_db.load_textual_inversion_embeddings() # reload embeddings so new one can be immediately used
shared.state.end()
return CreateResponse(info = "create embedding filename: {filename}".format(filename = filename))
except AssertionError as e:
shared.state.end()
return TrainResponse(info = "create embedding error: {error}".format(error = e))
def create_hypernetwork(self, args: dict):
try:
shared.state.begin()
filename = create_hypernetwork(**args) # create empty embedding
shared.state.end()
return CreateResponse(info = "create hypernetwork filename: {filename}".format(filename = filename))
except AssertionError as e:
shared.state.end()
return TrainResponse(info = "create hypernetwork error: {error}".format(error = e))
def preprocess(self, args: dict):
try:
shared.state.begin()
preprocess(**args) # quick operation unless blip/booru interrogation is enabled
shared.state.end()
return PreprocessResponse(info = 'preprocess complete')
except KeyError as e:
shared.state.end()
return PreprocessResponse(info = "preprocess error: invalid token: {error}".format(error = e))
except AssertionError as e:
shared.state.end()
return PreprocessResponse(info = "preprocess error: {error}".format(error = e))
except FileNotFoundError as e:
shared.state.end()
return PreprocessResponse(info = 'preprocess error: {error}'.format(error = e))
def train_embedding(self, args: dict):
try:
shared.state.begin()
apply_optimizations = shared.opts.training_xattention_optimizations
error = None
filename = ''
if not apply_optimizations:
sd_hijack.undo_optimizations()
try:
embedding, filename = train_embedding(**args) # can take a long time to complete
except Exception as e:
error = e
finally:
if not apply_optimizations:
sd_hijack.apply_optimizations()
shared.state.end()
return TrainResponse(info = "train embedding complete: filename: {filename} error: {error}".format(filename = filename, error = error))
except AssertionError as msg:
shared.state.end()
return TrainResponse(info = "train embedding error: {msg}".format(msg = msg))
def train_hypernetwork(self, args: dict):
try:
shared.state.begin()
shared.loaded_hypernetworks = []
apply_optimizations = shared.opts.training_xattention_optimizations
error = None
filename = ''
if not apply_optimizations:
sd_hijack.undo_optimizations()
try:
hypernetwork, filename = train_hypernetwork(*args)
except Exception as e:
error = e
finally:
shared.sd_model.cond_stage_model.to(devices.device)
shared.sd_model.first_stage_model.to(devices.device)
if not apply_optimizations:
sd_hijack.apply_optimizations()
shared.state.end()
return TrainResponse(info="train embedding complete: filename: {filename} error: {error}".format(filename=filename, error=error))
except AssertionError as msg:
shared.state.end()
return TrainResponse(info="train embedding error: {error}".format(error=error))
def get_memory(self):
try:
import os, psutil
process = psutil.Process(os.getpid())
res = process.memory_info() # only rss is cross-platform guaranteed so we dont rely on other values
ram_total = 100 * res.rss / process.memory_percent() # and total memory is calculated as actual value is not cross-platform safe
ram = { 'free': ram_total - res.rss, 'used': res.rss, 'total': ram_total }
except Exception as err:
ram = { 'error': f'{err}' }
try:
import torch
if torch.cuda.is_available():
s = torch.cuda.mem_get_info()
system = { 'free': s[0], 'used': s[1] - s[0], 'total': s[1] }
s = dict(torch.cuda.memory_stats(shared.device))
allocated = { 'current': s['allocated_bytes.all.current'], 'peak': s['allocated_bytes.all.peak'] }
reserved = { 'current': s['reserved_bytes.all.current'], 'peak': s['reserved_bytes.all.peak'] }
active = { 'current': s['active_bytes.all.current'], 'peak': s['active_bytes.all.peak'] }
inactive = { 'current': s['inactive_split_bytes.all.current'], 'peak': s['inactive_split_bytes.all.peak'] }
warnings = { 'retries': s['num_alloc_retries'], 'oom': s['num_ooms'] }
cuda = {
'system': system,
'active': active,
'allocated': allocated,
'reserved': reserved,
'inactive': inactive,
'events': warnings,
}
else:
cuda = { 'error': 'unavailable' }
except Exception as err:
cuda = { 'error': f'{err}' }
return MemoryResponse(ram = ram, cuda = cuda)
def launch(self, server_name, port):
self.app.include_router(self.router)
uvicorn.run(self.app, host=server_name, port=port)