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app.py
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app.py
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from __future__ import print_function
import codecs
from collections import defaultdict
try:
import MySQLdb
from MySQLdb.cursors import DictCursor
except ImportError:
import pymysql as MySQLdb
from pymysql.cursors import DictCursor
import jinja2
from jinja2 import Markup
import bottle
from bottle import (
request, response, redirect, abort, jinja2_template,
)
jinja_env = jinja2.Environment(autoescape=True, loader=jinja2.FileSystemLoader("templates"),
extensions=['jinja2.ext.autoescape'], auto_reload=False)
def render_template(name, **kwargs):
return jinja_env.get_template(name).render(**kwargs)
#return jinja2_template("templates/" + name, **kwargs)
#import memcache
#from flask_memcache_session import Session
import json, os, hashlib, tempfile, subprocess, time
import misaka
markdown = misaka.Markdown(misaka.HtmlRenderer())
#import mistune
config = {}
app = bottle.app()
#app = Flask(__name__, static_url_path='')
#app.debug = True
#app.cache = memcache.Client(['localhost:11211'], debug=0)
#app.session_interface = Session()
#app.session_cookie_name = "isucon_session_python"
#app.wsgi_app = ProxyFix(app.wsgi_app)
_sessions = {}
SESSION_COOKIE_NAME = "isucon_session_python"
_memolist = []
_last_public = None
with open('templates/frame_nouser.html') as f:
FRAME_A, FRAME_B = f.read().split('{{ content }}')
index_frame = jinja_env.get_template('frame.html')
mypage_tmpl = jinja_env.get_template('mypage.html')
memo_tmpl = jinja_env.get_template('memo.html')
def load_config():
global config
print("Loading configuration")
env = os.environ.get('ISUCON_ENV') or 'local'
with open('../config/' + env + '.json') as fp:
config = json.load(fp)
def connect_db():
global config
host = config['database']['host']
port = config['database']['port']
username = config['database']['username']
password = config['database']['password']
dbname = config['database']['dbname']
db = MySQLdb.connect(host=host,
port=port,
db=dbname,
user=username,
passwd=password,
cursorclass=DictCursor,
charset="utf8",
unix_socket='/var/lib/mysql/mysql.sock',
autocommit=True)
return db
def get_session():
session_id = request.cookies.get(SESSION_COOKIE_NAME)
if session_id is None:
return None
sess = _sessions.get(session_id)
if sess is None:
#raise Exception("Session %s is not found" % (session_id,))
response.delete_cookie(SESSION_COOKIE_NAME)
return sess
def get_user():
session = get_session()
if not session:
return None, None
user = get_user_by_id(session['user_id'])
if user is not None:
response.headers['Cache-Control'] = 'private'
return user, session
_userid_cache = {}
def get_user_by_id(user_id):
user = _userid_cache.get(user_id)
if user:
return user
cur = get_db().cursor()
cur.execute('SELECT * FROM users WHERE id=%s', (user_id,))
user = cur.fetchone()
cur.close()
_userid_cache[user_id] = user
return user
_memo_cache = {}
def set_memo_cache(memo):
if 'username' not in memo:
memo["username"] = get_user_by_id(memo['user'])["username"]
if 'content_html' not in memo:
memo["content_html"] = gen_markdown(memo['id'], memo["content"])
if 'title' not in memo:
memo['title'] = memo['content'].split('\n', 1)[0]
if 'title_li' not in memo:
s = render_template("memo_s.html",
memo_id=memo['id'],
title=memo['title'],
username=memo['username'],
created_at=memo['created_at'],
)
memo['title_li'] = str(s)
_memo_cache[memo['id']] = memo
def get_memo_by_id(memo_id):
memo = _memo_cache.get(memo_id)
if not memo:
cur = get_db().cursor()
cur.execute('SELECT id, user, content, is_private, created_at, updated_at FROM memos WHERE id=%s', (memo_id,))
memo = cur.fetchone()
cur.close()
set_memo_cache(memo)
return memo
_user_memo = defaultdict(list)
def anti_csrf():
session = get_session()
if request.forms['sid'] != session.get('token'):
abort(400)
def require_user(user):
if not user:
abort(403)
_md_cache = {}
def gen_markdown(memo_id, md):
html = _md_cache.get(memo_id)
if html:
return html
html = markdown.render(md)
#html = mistune.markdown(md)
_md_cache[memo_id] = html
return html
_db = None
def get_db():
global _db
if _db is None:
_db = connect_db()
return _db
memos_templ = """\
<h3>public memos</h3>
<p id="pager">
recent {start} - {end} / total <span id="total">{total}</span>
</p>
<ul id="memos">
{memos}
</ul>
"""
def get_memos(page):
total = len(_memolist)
start = (page+1)*(-100)-1
end = (page)*(-100)-1
memos = _memolist[end:start:-1]
if not memos:
abort(404)
memos = '\n'.join(memos)
content = memos_templ.format(start=page*100+1, end=page*100+100, total=total, memos=memos)
return content
@app.route("/")
def top_page():
return recent(0)
@app.route("/recent/<page:int>")
def recent(page):
user, session = get_user()
content = get_memos(page)
if not user:
return FRAME_A + str(content) + FRAME_B
return index_frame.render(user=user, content=content, session=session)
@app.route("/mypage")
def mypage():
user, session = get_user()
if not user:
abort(403)
#cur = get_db().cursor()
#cur.execute('SELECT id, content, is_private, created_at, updated_at FROM memos WHERE user=%s ORDER BY created_at DESC', (user["id"],))
#memos = cur.fetchall()
#cur.close()
memos = reversed(_user_memo[user['id']])
return mypage_tmpl.render(
user=user,
memos=memos,
session=session,
)
@app.route("/signin", method='GET')
def signin():
user, session = get_user()
return render_template('signin.html', user=user, session=session)
@app.route("/signin", method='POST')
def signin_post():
username = request.forms['username']
password = request.forms['password']
cur = get_db().cursor()
cur.execute('SELECT id, username, password, salt FROM users WHERE username=%s', (username,))
user = cur.fetchone()
if user and user["password"] == hashlib.sha256((user["salt"] + password).encode('utf-8')).hexdigest():
session = {}
session["user_id"] = user["id"]
session["token"] = codecs.encode(os.urandom(10), 'hex').decode('ascii')
session_id = codecs.encode(os.urandom(30), 'hex').decode('ascii')
_sessions[session_id] = session
response.set_cookie(SESSION_COOKIE_NAME, session_id, httponly=True)
return redirect("http://localhost/mypage")
else:
return render_template('signin.html', user=None, session={})
@app.route("/signout", method='POST')
def signout():
anti_csrf()
response.delete_cookie(SESSION_COOKIE_NAME)
return redirect("/")
@app.route("/memo/<memo_id:int>")
def memo(memo_id):
user, session = get_user()
memo = get_memo_by_id(memo_id)
if not memo:
abort(404)
if memo["is_private"] == 1:
if not user or user["id"] != memo["user"]:
abort(404)
show_private = user and user['id'] == memo['user']
#if user and user["id"] == memo["user"]:
# cond = ""
#else:
# cond = "AND is_private=0"
if show_private:
older = memo['prev_private']
newer = memo['next_private']
else:
older = memo['prev_id']
newer = memo['next_id']
#cur = get_db().cursor()
#cur.execute("SELECT id FROM memos WHERE user=%s " + cond + " AND id<%s ORDER BY id DESC LIMIT 1", (memo["user"], memo['id']))
#older_memos = cur.fetchall()
#cur.execute("SELECT id FROM memos WHERE user=%s " + cond + " AND id>%s ORDER BY id LIMIT 1", (memo["user"], memo['id']))
#newer_memos = cur.fetchall()
#cur.close()
#if older_memos:
# older = older_memos[0]
#if newer_memos:
# newer = newer_memos[0]
return memo_tmpl.render(
user=user,
memo=memo,
older=older,
newer=newer,
session=session,
)
@app.route("/memo", method='POST')
def memo_post():
global _last_public
user, token = get_user()
if not user:
abort(403)
anti_csrf()
private = int(request.forms.get("is_private") or 0)
content = request.forms["content"]
created_at=time.strftime('%Y-%m-%d %H:%M:%S')
db = get_db()
cur = db.cursor()
cur.execute(
"INSERT INTO memos (user, content, is_private, created_at) VALUES (%s, %s, %s, %s)",
(user["id"], content, private, created_at)
)
memo_id = db.insert_id()
cur.close()
memo = {
'id': memo_id,
'user': user['id'],
'username': user['username'],
'is_private': private,
'content': content,
'created_at': created_at,
'updated_at': created_at,
}
set_memo_cache(memo)
ul = _user_memo[user['id']]
memo['prev_id'] = memo['next_id'] = None
memo['prev_private'] = memo['next_private'] = None
if ul:
ul[-1]['next_private'] = memo['id']
memo['prev_private'] = ul[-1]['id']
for m in reversed(ul):
if not m['is_private']:
m['next_id'] = memo['id']
memo['prev_id'] = m['id']
break
ul.append(memo)
if not private:
_memolist.append(memo['title_li'])
if _last_public:
memo['prev_id'] = _last_public['id']
_last_public['next_id'] = memo['id']
_last_public = memo
return redirect("/memo/%s" % (memo_id,))
@app.route('/__init__')
def _init_():
_md_cache.clear()
_userid_cache.clear()
_memo_cache.clear()
_sessions.clear()
_user_memo.clear()
cur = get_db().cursor()
cur.execute('SELECT * FROM users')
for user in cur:
_userid_cache[user['id']] = user
cur.execute('SELECT id, user, content, is_private, created_at, updated_at FROM memos ORDER BY created_at')
memos = cur.fetchall()
f = open('/tmp/memos.txt', 'w')
for memo in memos:
memo['next_id'] = memo['prev_id'] = None
memo['next_private'] = memo['prev_private'] = None
set_memo_cache(memo)
_user_memo[memo['user']].append(memo)
if memo['is_private']:
continue
_memolist.append(memo['title_li'])
print('http://localhost/memo/' + str(memo['id']), file=f)
f.close()
for uid, memos in _user_memo.items():
for a, b in zip(memos, memos[1:]):
a['next_private'] = b['id']
b['prev_private'] = a['id']
last_public = None
for m in memos:
if m['is_private']:
continue
if last_public is not None:
last_public['next_id'] = m['id']
m['prev_id'] = last_public['id']
last_public = m
return 'OK'
load_config()
if __name__ == "__main__":
import sys
port = int(os.environ.get("PORT", '5000'))
#app.run(debug=1, host='0.0.0.0', port=port)
_init_()
bottle.run(host='0.0.0.0', port=port, debug=False, quiet=True)