49 lines
1.7 KiB
Python
49 lines
1.7 KiB
Python
from pathlib import Path
|
|
|
|
from flask import Flask, flash, render_template
|
|
from werkzeug.exceptions import RequestEntityTooLarge
|
|
|
|
from app.config import Config
|
|
from app.routes import main_blueprint
|
|
from app.services.storage import cleanup_expired_outputs
|
|
|
|
|
|
def _format_size_limit(size_limit_bytes: int) -> str:
|
|
"""Render the upload limit in a friendly unit for error messages."""
|
|
if size_limit_bytes >= 1024 * 1024:
|
|
return f"{size_limit_bytes / (1024 * 1024):.0f} MB"
|
|
if size_limit_bytes >= 1024:
|
|
return f"{size_limit_bytes / 1024:.0f} KB"
|
|
return f"{size_limit_bytes} bytes"
|
|
|
|
|
|
def create_app(config_class: type[Config] = Config) -> Flask:
|
|
"""Application factory used by Flask and Gunicorn."""
|
|
app = Flask(__name__, instance_relative_config=True)
|
|
app.config.from_object(config_class)
|
|
|
|
output_dir = Path(app.config["OUTPUT_DIRECTORY"])
|
|
if not output_dir.is_absolute():
|
|
output_dir = Path(app.instance_path) / output_dir
|
|
app.config["OUTPUT_DIRECTORY"] = output_dir
|
|
output_dir.mkdir(parents=True, exist_ok=True)
|
|
|
|
if app.config.get("CLEANUP_ON_STARTUP", False):
|
|
cleanup_expired_outputs(
|
|
output_dir=output_dir,
|
|
retention_hours=app.config.get("OUTPUT_RETENTION_HOURS", 24),
|
|
)
|
|
|
|
app.register_blueprint(main_blueprint)
|
|
|
|
@app.errorhandler(RequestEntityTooLarge)
|
|
def handle_file_too_large(_error):
|
|
size_limit_bytes = int(app.config["MAX_CONTENT_LENGTH"])
|
|
flash(
|
|
f"The uploaded file is too large. Maximum allowed size is {_format_size_limit(size_limit_bytes)}.",
|
|
"danger",
|
|
)
|
|
return render_template("index.html"), 413
|
|
|
|
return app
|