mirror of
https://github.com/minetest/contentdb.git
synced 2024-12-23 06:22:24 +01:00
278 lines
6.9 KiB
Python
278 lines
6.9 KiB
Python
# ContentDB
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# Copyright (C) 2018 rubenwardy
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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import imghdr
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import os
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import random
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import string
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from functools import wraps
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from urllib.parse import urljoin
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import user_agents
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from flask import request, flash, abort, redirect
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from flask_login import login_user, current_user
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from werkzeug.datastructures import MultiDict
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from passlib.hash import bcrypt
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from .models import *
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def is_safe_url(target):
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ref_url = urlparse(request.host_url)
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test_url = urlparse(urljoin(request.host_url, target))
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return test_url.scheme in ('http', 'https') and \
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ref_url.netloc == test_url.netloc
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# These are given to Jinja in template_filters.py
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def abs_url_for(path, **kwargs):
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scheme = "https" if app.config["BASE_URL"][:5] == "https" else "http"
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return url_for(path, _external=True, _scheme=scheme, **kwargs)
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def abs_url(path):
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return urljoin(app.config["BASE_URL"], path)
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def url_set_query(**kwargs):
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args = MultiDict(request.args)
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for key, value in kwargs.items():
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if key == "_add":
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for key2, value_to_add in value.items():
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values = set(args.getlist(key2))
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values.add(value_to_add)
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args.setlist(key2, list(values))
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elif key == "_remove":
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for key2, value_to_remove in value.items():
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values = set(args.getlist(key2))
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values.discard(value_to_remove)
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args.setlist(key2, list(values))
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else:
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args.setlist(key, [ value ])
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dargs = dict(args.lists())
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return url_for(request.endpoint, **dargs)
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def get_int_or_abort(v, default=None):
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if v is None:
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return default
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try:
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return int(v or default)
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except ValueError:
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abort(400)
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def is_user_bot():
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user_agent = request.headers.get('User-Agent')
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if user_agent is None:
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return True
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user_agent = user_agents.parse(user_agent)
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return user_agent.is_bot
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def getExtension(filename):
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return filename.rsplit(".", 1)[1].lower() if "." in filename else None
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def isFilenameAllowed(filename, exts):
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return getExtension(filename) in exts
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ALLOWED_IMAGES = {"jpeg", "png"}
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def isAllowedImage(data):
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return imghdr.what(None, data) in ALLOWED_IMAGES
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def shouldReturnJson():
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return "application/json" in request.accept_mimetypes and \
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not "text/html" in request.accept_mimetypes
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def randomString(n):
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return ''.join(random.choice(string.ascii_lowercase + \
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string.ascii_uppercase + string.digits) for _ in range(n))
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def doFileUpload(file, fileType, fileTypeDesc):
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if not file or file is None or file.filename == "":
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flash("No selected file", "danger")
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return None, None
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assert os.path.isdir(app.config["UPLOAD_DIR"]), "UPLOAD_DIR must exist"
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allowedExtensions = []
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isImage = False
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if fileType == "image":
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allowedExtensions = ["jpg", "jpeg", "png"]
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isImage = True
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elif fileType == "zip":
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allowedExtensions = ["zip"]
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else:
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raise Exception("Invalid fileType")
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ext = getExtension(file.filename)
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if ext is None or not ext in allowedExtensions:
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flash("Please upload " + fileTypeDesc, "danger")
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return None, None
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if isImage and not isAllowedImage(file.stream.read()):
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flash("Uploaded image isn't actually an image", "danger")
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return None, None
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file.stream.seek(0)
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filename = randomString(10) + "." + ext
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filepath = os.path.join(app.config["UPLOAD_DIR"], filename)
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file.save(filepath)
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return "/uploads/" + filename, filepath
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def check_password_hash(stored, given):
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if stored is None or stored == "":
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return False
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return bcrypt.verify(given.encode("UTF-8"), stored)
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def make_flask_login_password(plaintext):
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return bcrypt.hash(plaintext.encode("UTF-8"))
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def loginUser(user):
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def _call_or_get(v):
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if callable(v):
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return v()
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else:
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return v
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# User must have been authenticated
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if not user:
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return False
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if user.rank == UserRank.BANNED:
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flash("You have been banned.", "danger")
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return False
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user.is_active = True
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if not user.rank.atLeast(UserRank.NEW_MEMBER):
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user.rank = UserRank.MEMBER
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db.session.commit()
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# Check if user account has been disabled
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if not _call_or_get(user.is_active):
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flash("Your account has not been enabled.", "danger")
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return False
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login_user(user, remember=True)
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flash("You have signed in successfully.", "success")
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return True
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def rank_required(rank):
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def decorator(f):
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@wraps(f)
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def decorated_function(*args, **kwargs):
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if not current_user.is_authenticated:
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return redirect(url_for("users.login"))
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if not current_user.rank.atLeast(rank):
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abort(403)
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return f(*args, **kwargs)
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return decorated_function
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return decorator
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def getPackageByInfo(author, name):
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user = User.query.filter_by(username=author).first()
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if user is None:
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return None
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package = Package.query.filter_by(name=name, author_id=user.id) \
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.filter(Package.state!=PackageState.DELETED).first()
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if package is None:
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return None
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return package
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def is_package_page(f):
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@wraps(f)
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def decorated_function(*args, **kwargs):
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if not ("author" in kwargs and "name" in kwargs):
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abort(400)
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author = kwargs["author"]
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name = kwargs["name"]
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package = getPackageByInfo(author, name)
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if package is None:
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package = getPackageByInfo(author, name + "_game")
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if package is None or package.type != PackageType.GAME:
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abort(404)
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args = dict(kwargs)
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args["name"] = name + "_game"
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return redirect(url_for(request.endpoint, **args))
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del kwargs["author"]
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del kwargs["name"]
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return f(package=package, *args, **kwargs)
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return decorated_function
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def addNotification(target: User, causer: User, type: NotificationType, title: str, url: str, package: Package =None):
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try:
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iter(target)
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for x in target:
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addNotification(x, causer, type, title, url, package)
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return
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except TypeError:
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pass
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if target.rank.atLeast(UserRank.NEW_MEMBER) and target != causer:
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Notification.query.filter_by(user=target, causer=causer, type=type, title=title, url=url, package=package).delete()
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notif = Notification(target, causer, type, title, url, package)
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db.session.add(notif)
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def addAuditLog(severity, causer, title, url, package=None, description=None):
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entry = AuditLogEntry(causer, severity, title, url, package, description)
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db.session.add(entry)
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def clearNotifications(url):
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if current_user.is_authenticated:
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Notification.query.filter_by(user=current_user, url=url).delete()
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db.session.commit()
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YESES = ["yes", "true", "1", "on"]
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def isYes(val):
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return val and val.lower() in YESES
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def isNo(val):
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return val and not isYes(val)
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def nonEmptyOrNone(str):
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if str is None or str == "":
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return None
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return str
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