mirror of
https://github.com/minetest/contentdb.git
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140 lines
3.4 KiB
Python
140 lines
3.4 KiB
Python
# ContentDB
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# Copyright (C) 2018-21 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 Affero 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 Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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import re
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import secrets
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from typing import Dict
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import deep_compare
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from flask import current_app
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from .flask import *
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from .models import *
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from .user import *
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YESES = ["yes", "true", "1", "on"]
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def is_username_valid(username: str) -> bool:
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return username is not None and len(username) >= 2 and \
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re.match(r"^[A-Za-z0-9._-]*$", username) and not re.match(r"^\.*$", username)
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def make_valid_username(username: str) -> str:
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return re.sub(r"[^A-Za-z0-9._-]+", "_", username)
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def is_yes(val):
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return val and val.lower() in YESES
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def is_no(val):
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return val and not is_yes(val)
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def nonempty_or_none(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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def normalize_line_endings(value: Optional[str]) -> Optional[str]:
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if value is None:
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return None
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return value.replace("\r\n", "\n").strip() + "\n"
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def should_return_json():
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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 random_string(n):
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return secrets.token_hex(int(n / 2))
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def has_blocked_domains(text: str, username: str, location: str) -> bool:
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if text is None:
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return False
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blocked_domains = current_app.config["BLOCKED_DOMAINS"]
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for domain in blocked_domains:
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if domain in text:
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from app.tasks.webhooktasks import post_discord_webhook
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post_discord_webhook.delay(username,
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f"Attempted to post blocked domain {domain} in {location}",
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True)
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return True
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return False
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def diff_dictionaries(one: Dict, two: Dict) -> List:
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if len(set(one.keys()).difference(set(two.keys()))) != 0:
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raise "Mismatching keys"
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retval = []
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for key, before in one.items():
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after = two[key]
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if isinstance(before, dict):
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diff = diff_dictionaries(before, after)
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if len(diff) != 0:
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retval.append({
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"key": key,
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"changes": diff,
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})
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elif not deep_compare.CompareVariables.compare(before, after):
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retval.append({
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"key": key,
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"before": before,
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"after": after,
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})
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return retval
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def describe_difference(diff: List, available_space: int) -> typing.Optional[str]:
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if len(diff) == 0 or available_space <= 0:
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return None
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if len(diff) == 1 and "before" in diff[0] and "after" in diff[0]:
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key = diff[0]["key"]
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before = diff[0]["before"]
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after = diff[0]["after"]
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if isinstance(before, str) and isinstance(after, str):
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if len(before) + len(after) <= available_space + 30:
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return f"{key}: {before} -> {after}"
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elif isinstance(before, list) and isinstance(after, list):
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removed = []
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added = []
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for x in before:
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if x not in after:
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removed.append(x)
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for x in after:
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if x not in before:
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added.append(x)
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parts = ["-" + str(x) for x in removed] + ["+" + str(x) for x in added]
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return f"{key}: {', '.join(parts)}"
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return ", ".join([x["key"] for x in diff])
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