import io import os import logging import traceback from PIL import Image, ExifTags import boto3 from telegram import Update from telegram.constants import ParseMode from telegram.ext import Application, CommandHandler, ContextTypes, MessageHandler, filters from peewee import * from uuid import uuid4 from datetime import datetime import json import sys import httpx if os.getenv("DB_DRIVER") == "psql": db = PostgresqlDatabase(os.getenv("DB_NAME"), user=os.getenv("DB_USER"), password=os.getenv("DB_PASS"), host=os.getenv("DB_HOST"), port=os.getenv("DB_PORT")) elif os.getenv("DB_DRIVER") == "sqlite3": db = SqliteDatabase("database/photos.db") else: print("No DB_DRIVER specified") sys.exit(1) db.connect(reuse_if_open=True) class BaseModel(Model): class Meta: database = db class Photo(BaseModel): guid = CharField(unique=True, primary_key=True) fileId = CharField(max_length=256) width = IntegerField() height = IntegerField() ratio = FloatField() orientation = CharField(max_length=128) path = CharField(max_length=256) caption = CharField(max_length=256) alt = CharField(max_length=256) model = CharField(max_length=256, default="") createdAt = DateTimeField() uploadedAt = DateTimeField() with db.connection_context(): db.create_tables([Photo]) logging.basicConfig( format="%(asctime)s - %(name)s - %(levelname)s - %(message)s", level=logging.INFO ) logger = logging.getLogger(__name__) async def start(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None: await update.message.reply_text("This is a bot to output image in square shape") bucket_name = "pixel-jinwei-me" cf_account_id = os.getenv("CF_ACCOUNT_ID") aws_access_key_id = os.getenv("CF_R2_KEY_ID") aws_secret_access_key = os.getenv("CF_R2_ACCESS_KEY_SECRET") cloudflare_pages_deploy_hook_url = os.getenv("CLOUDFLARE_PAGES_DEPLOY_HOOK_URL") def write_json() -> bool: with db.connection_context(): photos = Photo.select() results = [] for photo in photos: results.append({ "guid": photo.guid, "fileId": photo.fileId, "width": photo.width, "height": photo.height, "ratio": photo.ratio, "orientation": photo.orientation, "path": photo.path, "caption": photo.caption, "alt": photo.alt, "model": photo.model, "createdAt": photo.createdAt.strftime("%Y-%m-%dT%H:%M:%S.000Z"), "uploadedAt": photo.uploadedAt.strftime("%Y-%m-%dT%H:%M:%S.000Z") }) results.sort(key=lambda x: x["uploadedAt"], reverse=True) upload_to_s3("photos.json", json.dumps(results).encode("utf-8")) return True def upload_to_s3(key_name: str, file: bytes): endpoint_ca_central = "https://{}.r2.cloudflarestorage.com".format(cf_account_id) client = boto3.client("s3", region_name="auto", endpoint_url=endpoint_ca_central, aws_access_key_id=aws_access_key_id, aws_secret_access_key=aws_secret_access_key) response = client.list_buckets() buckets = [b["Name"] for b in response['Buckets']] if bucket_name not in buckets: print("{} doesn't exist".format(bucket_name)) print('Existing buckets:') for bucket in response['Buckets']: print(f' {bucket["Name"]}') return False response = client.put_object(Body=file, Bucket=bucket_name, Key=key_name, ContentType="application/json") status = response["ResponseMetadata"]["HTTPStatusCode"] if status == 200: print("upload {} to {} succeed".format(key_name, bucket_name)) return True else: print("upload {} to {} failed, status: {}".format(key_name, bucket_name, status)) return False async def process(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None: chat_id = update.message.chat_id if update.message.document is not None: names = update.message.document.file_name.split(".") file_ext = names[1] filename = names[0] if str.upper(file_ext) not in ("JPG", "JPEG", "PNG"): await context.bot.send_message(chat_id, "Image extension `{}` not supported".format(file_ext), parse_mode=ParseMode.MARKDOWN_V2) return file = await update.message.effective_attachment.get_file() else: return caption = update.effective_message.caption await context.bot.send_message(chat_id, "Processing `{}`".format(filename), parse_mode=ParseMode.MARKDOWN_V2) img = io.BytesIO() await file.download_to_memory(img) try: im = Image.open(img) exif = im.getexif() camera_model = "" shot_datetime = None if exif: for key, val in exif.items(): if key in ExifTags.TAGS: if ExifTags.TAGS[key] == "Model": camera_model = val elif ExifTags.TAGS[key] == "DateTime": shot_datetime = datetime.strptime(val, "%Y:%m:%d %H:%M:%S") output = io.BytesIO() im.save(output, format="webp", lossless=False, quality=80) now = datetime.now().strftime("%Y-%m-%d-%H-%M-%S") key_name = "{}-{}.webp".format(now, filename) with db.connection_context(): photo = Photo.create(guid=str.upper(str(uuid4())), fileId=key_name, width=im.width, height=im.height, ratio=im.width / im.height, orientation="landscape" if im.width > im.height else "portrait", path="https://pixelstatic.jinwei.me/{}".format(key_name), caption=caption, alt="", model=camera_model, createdAt=shot_datetime if shot_datetime else datetime.now(), uploadedAt=datetime.now()) output.seek(0) upload_to_s3(photo.fileId, output.read()) await rebuild(update) except Exception: await update.message.reply_markdown_v2(text="Error:\n```{}```".format(traceback.format_exc())) async def rebuild(update: Update) -> None: write_json() response = httpx.post(cloudflare_pages_deploy_hook_url) if response.status_code == 200: await update.message.reply_markdown_v2(text="trigger deploy succeed") else: await update.message.reply_markdown_v2("trigger deploy failed, status: {}".format(response.status_code)) def main() -> None: tg_token = os.getenv("TG_TOKEN") application = Application.builder().token(tg_token).build() application.add_handler(CommandHandler("start", start)) application.add_handler(CommandHandler("rebuild", rebuild)) application.add_handler(MessageHandler(filters.ATTACHMENT & ~filters.COMMAND, process)) application.run_polling() if __name__ == "__main__": main()