"""
Plugin for generating images using self-hosted Stable Diffusion and sending them to a Matrix chat room.
"""
import requests
import base64
from asyncio import Queue
import argparse
import simplematrixbotlib as botlib
import markdown2
from slugify import slugify
def slugify_prompt(prompt):
"""
Generates a URL-friendly slug from the given prompt.
Args:
prompt (str): The prompt to slugify.
Returns:
str: A URL-friendly slug version of the prompt.
"""
return slugify(prompt)
# Queue to store pending commands
command_queue = Queue()
def markdown_to_html(markdown_text):
"""
Converts Markdown text to HTML.
Args:
markdown_text (str): The Markdown text to convert.
Returns:
str: The HTML version of the input Markdown text.
"""
html_content = markdown2.markdown(markdown_text)
return html_content
async def process_command(room, message, bot, prefix, config):
"""
Asynchronously processes the commands received in the Matrix room.
Args:
room (Room): The Matrix room where the command was received.
message (Message): The message object containing the command.
bot (MatrixBot): The Matrix bot instance.
prefix (str): The command prefix.
config (dict): The bot's configuration.
"""
match = botlib.MessageMatch(room, message, bot, prefix)
if match.prefix() and match.command("sd"):
if command_queue.empty():
await handle_command(room, message, bot, prefix, config)
else:
await command_queue.put((room, message, bot, prefix, config))
async def handle_command(room, message, bot, prefix, config):
"""
Asynchronously handles the 'sd' command, which generates images using Stable Diffusion.
Args:
room (Room): The Matrix room where the command was received.
message (Message): The message object containing the command.
bot (MatrixBot): The Matrix bot instance.
prefix (str): The command prefix.
config (dict): The bot's configuration.
"""
match = botlib.MessageMatch(room, message, bot, prefix)
if match.prefix() and match.command("sd"):
try:
# Parse command-line arguments
parser = argparse.ArgumentParser(description='Generate images using self-hosted Stable Diffusion')
parser.add_argument('--steps', type=int, default=4, help='Number of steps, default=16')
parser.add_argument('--cfg', type=int, default=1.25, help='CFG scale, default=7')
parser.add_argument('--h', type=int, default=512, help='Height of the image, default=512')
parser.add_argument('--w', type=int, default=512, help='Width of the image, default=512')
parser.add_argument('--neg', type=str, default='((((ugly)))), (((duplicate))), ((morbid)), ((mutilated)), out of frame, extra fingers, mutated hands, ((poorly drawn hands)), ((poorly drawn face)), (((mutation))), (((deformed))), ((ugly)), blurry, ((bad anatomy)), (((bad proportions))), ((extra limbs)), cloned face, (((disfigured))), out of frame, ugly, extra limbs, (bad anatomy), gross proportions, (malformed limbs), ((missing arms)), ((missing legs)), (((extra arms))), (((extra legs))), mutated hands, (fused fingers), (too many fingers), (((long neck)))', nargs='+', help='Negative prompt, default=none')
parser.add_argument('--sampler', type=str, nargs='*', default=['DPM++', 'SDE', 'Karras'], help='Sampler name, default=Euler a')
parser.add_argument('prompt', type=str, nargs='*', help='Prompt for the image')
args = parser.parse_args(message.body.split()[1:]) # Skip the command itself
if not args.prompt:
raise argparse.ArgumentError(None, "Prompt is required.")
prompt = ' '.join(args.prompt)
sampler_name = ' '.join(args.sampler)
neg = ' '.join(args.neg)
payload = {
"prompt": prompt,
"steps": args.steps,
"negative_prompt": neg,
"sampler_name": sampler_name,
"cfg_scale": args.cfg,
"width": args.w,
"height": args.h,
}
url = "http://127.0.0.1:7860/sdapi/v1/txt2img"
# Send request to the Stable Diffusion API
response = requests.post(url=url, json=payload)
r = response.json()
# Slugify the prompt
prompt_slug = slugify(prompt[:120])
# Construct filename
filename = f"{prompt_slug}_{args.steps}_{args.h}x{args.w}_{sampler_name}_{args.cfg}.jpg"
with open(f"/tmp/{filename}", 'wb') as f:
f.write(base64.b64decode(r['images'][0]))
# Send the generated image to the Matrix room
await bot.api.send_image_message(room_id=room.room_id, image_filepath=f"/tmp/{filename}")
# Format and send information about the generated image
neg = neg.replace(" ", "")
info_msg = f"""🍄⤵︎Image Info:⤵︎
Prompt: {prompt_slug}
Steps: {args.steps}
Dimensions: {args.h}x{args.w}
Sampler: {sampler_name}
CFG Scale: {args.cfg}
Negative Prompt: {neg}Stable Diffusion Help
" + print_help() + "
Generate images using self-hosted Stable Diffusion
Positional arguments:
Default Negative Prompts: ((((ugly)))), (((duplicate))), ((morbid)), ((mutilated)), out of frame, extra fingers, mutated hands, ((poorly drawn hands)), ((poorly drawn face)), (((mutation))), (((deformed))), ((ugly)), blurry, ((bad anatomy)), (((bad proportions))), ((extra limbs)), cloned face, (((disfigured))), out of frame, ugly, extra limbs, (bad anatomy), gross proportions, (malformed limbs), ((missing arms)), ((missing legs)), (((extra arms))), (((extra legs))), mutated hands, (fused fingers), (too many fingers), (((long neck)))
Optional arguments:
LORA List:
Load LORAs like this: