nopaque/app/blueprints/users/routes.py

from flask import (
    abort,
    redirect, 
    render_template, 
    send_from_directory,
    url_for
)
from flask_login import current_user
from app.models import User
from . import bp


@bp.route('')
def users():
    return redirect(url_for('main.social_area', _anchor='users'))


@bp.route('/<hashid:user_id>')
def user(user_id):
    user = User.query.get_or_404(user_id)
    if not (user.is_public or user == current_user or current_user.is_administrator):
        abort(403)
    return render_template(
        'users/user.html.j2',
        title=user.username,
        user=user
    )


@bp.route('/<hashid:user_id>/avatar')
def user_avatar(user_id):
    user = User.query.get_or_404(user_id)
    if not (user.is_public or user == current_user or current_user.is_administrator):
        abort(403)
    if user.avatar is None:
        return redirect(url_for('static', filename='images/user_avatar.png'))
    return send_from_directory(
        user.avatar.path.parent,
        user.avatar.path.name,
        as_attachment=True,
        download_name=user.avatar.filename,
        mimetype=user.avatar.mimetype
    )