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215 lines
5.9 KiB
215 lines
5.9 KiB
# -*- coding: utf-8 -*-
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from functools import wraps
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from flask import Flask, request, render_template, send_from_directory, abort, redirect, session
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from flask_sqlalchemy import SQLAlchemy
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from flask_limiter import Limiter
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from flask_limiter.util import get_remote_address
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from mastodon import Mastodon
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import re
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import random
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from datetime import datetime
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from dateutil.tz import tzlocal
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import html2text
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from config import C
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WRONG_ANS_HTML = '''<html>
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<head>
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<meta charset='UTF-8'>
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<meta name='viewport' content='width=device-width initial-scale=1'>
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<title>错误</title>
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</head>
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<body>
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<h1>验证问题回答错误</h1>
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<a href="##" onclick="window.history.back()">回退</a>
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</body>
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</html>
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'''
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app = Flask(__name__)
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app.config.from_object('config.C')
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app.secret_key = C.session_key
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th = Mastodon(
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access_token = C.token,
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api_base_url = 'https://' + C.domain
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)
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limiter = Limiter(
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app,
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key_func=get_remote_address,
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default_limits=["50 / minute"],
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)
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h2t = html2text.HTML2Text()
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h2t.ignore_links = True
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db = SQLAlchemy(app)
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class Candidate(db.Model):
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id = db.Column(db.Integer, primary_key=True)
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content = db.Column(db.String(4000))
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private = db.Column(db.String(1000))
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url = db.Column(db.String(50))
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time = db.Column(db.DateTime)
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toot = db.Column(db.BigInteger)
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likeNum = db.Column(db.Integer, default=0)
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# always increment 1 for the id of a new record
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__table_args__ = { 'sqlite_autoincrement': True }
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class Like(db.Model):
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id = db.Column(db.Integer, primary_key=True)
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cid = db.Column(db.Integer) # (member) id of class Candidate
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uid = db.Column(db.Integer) # id of user
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db.create_all()
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def need_verify(func):
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@wraps(func)
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def warp(*args, **kwargs):
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print(session)
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if not session.get('verified'):
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abort(403)
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return func(*args, **kwargs)
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return warp
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@app.route('/img/<path:path>')
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def send_img(path):
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return send_from_directory('static/img', path)
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@app.route('/ordinary/verify', methods=['POST'])
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@limiter.limit("3 / hour")
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def verify():
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for name, ques, hint, ans in C.verify:
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if request.form.get(name) != ans:
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return WRONG_ANS_HTML, 401
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session['verified'] = True
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return redirect('.')
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@app.route('/ordinary/set_session')
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@limiter.limit("2 / hour; 1 / 5 minute")
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def set_session():
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if 'uid' not in session:
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session['uid'] = random.randint(0, 2000000000)
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session.permanent = True
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return redirect('.')
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@app.route('/ordinary/')
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def can_list():
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key = request.args.get('key')
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sort_by = request.args.get('sort_by', 'time')
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if 'uid' not in session:
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return redirect('set_session')
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uid = session.get('uid')
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q = Candidate.query
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q = q.order_by(db.desc('likeNum')) if sort_by=='likeNum' else q.order_by(db.desc('id'))
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pag = q.paginate(max_per_page=100)
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def check_like(c):
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c.liked = 'liked' if Like.query.filter_by(uid=uid, cid=c.id).count() else 'like'
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return c
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pag.items = map(check_like, pag.items)
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vs = [{
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'name': name,
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'ques': ques,
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'hint': hint
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} for name, ques, hint, ans in C.verify
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]
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return render_template('list.html', pagination=pag, vs=vs, verified=session.get('verified'), showPrivate=(key==C.key), sort_by=sort_by, key=key, base_toot_url='https://%s/web/statuses/' % C.domain, step2=C.step2, text1=C.text1, text2=C.text2)
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@app.route('/ordinary/new', methods=['POST'])
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@limiter.limit("5 / hour; 1 / 2 second")
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@need_verify
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def new_one():
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content = request.form.get('text')
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private = request.form.get('privateText')
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url = request.form.get('url')
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if not content or len(content)>4000: abort(422)
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if private and len(private)>1000: abort(422)
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if url and not re.match('https://(cloud\.tsinghua\.edu\.cn/f/[0-9a-z]+/(\?dl=1)?|closed\.social/safeShare/\d([a-zA-Z]+)?)', url): abort(422)
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if not Candidate.query.filter_by(content=content).first():
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toot = th.status_post(
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f"有新的自荐报名（大家可以直接在此处评论）：\n\n{content}",
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visibility=C.visibility
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)
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c = Candidate(
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content=content,
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private=private,
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url=url,
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toot=toot.id,
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time=datetime.now()
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)
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db.session.add(c)
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db.session.commit()
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return redirect(".")
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@app.route('/ordinary/judge', methods=['POST'])
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@limiter.limit("10 / hour; 1 / 2 second")
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@need_verify
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def judge():
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group = request.form.get('groupType')
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return redirect(C.groups.get(group))
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@limiter.limit("100 / hour; 2 / second")
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@app.route('/ordinary/<int:toot>/comments')
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def get_comments(toot):
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c = Candidate.query.filter_by(toot=toot).first()
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if not c:
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abort(404)
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context = th.status_context(toot)
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replies = [
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{
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'disp': (t.account.display_name or t.account.acct),
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'url': t.account.url,
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'content': h2t.handle(t.content).replace(C.bot_name,'').strip(),
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'time': str(t.created_at)
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}
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for t in context.descendants
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]
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d = list(filter(
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lambda r: r['content'] == '删除' and r['url'].split('/@')[1] in C.admins,
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replies
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))
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if d:
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db.session.delete(c)
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db.session.commit()
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th.status_delete(toot)
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return '该内容已被删除', 404
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return {'replies': replies}
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@limiter.limit("100 / hour")
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@app.route('/ordinary/<int:toot>/like', methods=['POST'])
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def like(toot):
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c = Candidate.query.filter_by(toot=toot).first()
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if not c:
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abort(404)
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uid = session['uid']
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if not uid: abort(401)
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if Like.query.filter_by(uid=uid, cid=c.id).first():
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return '点赞过了', 403
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l = Like(uid=uid, cid=c.id)
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c.likeNum += 1
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db.session.add(l)
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db.session.commit()
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return str(c.likeNum)
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if __name__ == '__main__':
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app.run(debug=True)
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