subdomain dispatcher

This commit is contained in:
Matthew Scragg 2013-10-04 16:42:45 -05:00
parent 2906b79dfc
commit 1a08aade00
8 changed files with 157 additions and 129 deletions

30
app.py
View file

@ -1,35 +1,9 @@
from gevent import monkey, pywsgi
monkey.patch_all()
from realms import create_app, config
from threading import Lock
from realms import config, init_db, make_app, SubdomainDispatcher
class SubdomainDispatcher(object):
def __init__(self, domain, create_app):
self.domain = domain
self.create_app = create_app
self.lock = Lock()
self.instances = {}
def get_application(self, host):
host = host.split(':')[0]
assert host.endswith(self.domain), 'Configuration error'
subdomain = host[:-len(self.domain)].rstrip('.')
with self.lock:
app = self.instances.get(subdomain)
if app is None:
app = self.create_app(subdomain)
self.instances[subdomain] = app
return app
def __call__(self, environ, start_response):
app = self.get_application(environ['HTTP_HOST'])
return app(environ, start_response)
def make_app(subdomain):
return create_app(subdomain)
if __name__ == '__main__':
init_db(config.db['dbname'])
app = SubdomainDispatcher(config.domain, make_app)
pywsgi.WSGIServer(('', config.port), app).serve_forever()

View file

@ -1,18 +1,60 @@
import logging
import os
import time
from threading import Lock
from flask import Flask, request, render_template, url_for, redirect, flash, session
from flask.ext.bcrypt import Bcrypt
from flask.ext.login import LoginManager, login_user, logout_user
import rethinkdb as rdb
from flask import Flask, request, render_template, url_for, redirect, flash
from flask.ext.login import LoginManager, login_required
from flask.ext.assets import Environment
from recaptcha.client import captcha
from werkzeug.routing import BaseConverter
from session import RedisSessionInterface
import config
from wiki import Wiki
from util import to_canonical, remove_ext, mkdir_safe, gravatar_url
from models import Site, User, CurrentUser
from ratelimit import get_view_rate_limit, ratelimiter
from services import db
instances = {}
class SubdomainDispatcher(object):
def __init__(self, domain, create_app):
self.domain = domain
self.create_app = create_app
self.lock = Lock()
def get_application(self, host):
host = host.split(':')[0]
assert host.endswith(self.domain), 'Configuration error'
subdomain = host[:-len(self.domain)].rstrip('.')
with self.lock:
app = instances.get(subdomain)
if app is None:
app = self.create_app(subdomain)
instances[subdomain] = app
return app
def __call__(self, environ, start_response):
app = self.get_application(environ['HTTP_HOST'])
return app(environ, start_response)
def init_db(dbname):
if not dbname in rdb.db_list().run(db):
print "Creating DB %s" % dbname
rdb.db_create(dbname).run(db)
for tbl in ['sites', 'users', 'pages']:
if not tbl in rdb.table_list().run(db):
rdb.table_create(tbl).run(db)
s = Site()
if not s.get_by_name('_'):
s.create(name='_', repo='_')
class RegexConverter(BaseConverter):
@ -21,8 +63,10 @@ class RegexConverter(BaseConverter):
self.regex = items[0]
def redirect_url():
return request.args.get('next') or request.referrer or url_for('index')
def redirect_url(referrer=None):
if not referrer:
referrer = request.referrer
return request.args.get('next') or referrer or url_for('index')
def validate_captcha():
@ -34,6 +78,12 @@ def validate_captcha():
return response.is_valid
def make_app(subdomain):
if subdomain and not Wiki.is_registered(subdomain):
return redirect("http://%s/_new/?site=%s" % (config.hostname, subdomain))
return create_app(subdomain)
def create_app(subdomain=None):
app = Flask(__name__)
app.config.update(config.flask)
@ -43,10 +93,9 @@ def create_app(subdomain=None):
app.session_interface = RedisSessionInterface()
app.url_map.converters['regex'] = RegexConverter
bcrypt = Bcrypt(app)
login_manager = LoginManager()
login_manager.init_app(app)
login_manager.login_view = 'login'
@login_manager.user_loader
def load_user(user_id):
@ -56,60 +105,65 @@ def create_app(subdomain=None):
assets.url = app.static_url_path
assets.directory = app.static_folder
main_repo_dir = config.repos['main']
repo_dir = config.repos['dir']
repo_name = subdomain if subdomain else "_"
w = Wiki(main_repo_dir) if not subdomain else Wiki(repo_dir + "/" + subdomain)
w = Wiki(repo_dir + "/" + repo_name)
@app.after_request
def inject_x_rate_headers(response):
limit = get_view_rate_limit()
if limit and limit.send_x_headers:
h = response.headers
h.add('X-RateLimit-Remaining', str(limit.remaining))
h.add('X-RateLimit-Limit', str(limit.limit))
h.add('X-RateLimit-Reset', str(limit.reset))
return response
@app.template_filter('datetime')
def _jinja2_filter_datetime(ts):
return time.strftime('%b %d, %Y %I:%M %p', time.localtime(ts))
@app.errorhandler(404)
def page_not_found(e):
return render_template('errors/404.html'), 404
@app.errorhandler(500)
def page_error(e):
logging.exception(e)
return render_template('errors/500.html'), 500
@app.route("/")
@ratelimiter(limit=50, per=60)
def root():
return render('home')
#return redirect('/home')
@app.route("/account/")
@login_required
def account():
return render_template('account/index.html')
@app.route("/_new/", methods=['GET', 'POST'])
@login_required
def new_wiki():
if request.method == 'POST':
# TODO validate wiki name
wiki_name = request.form['name']
s = Site()
if s.get_by_name(wiki_name):
wiki_name = to_canonical(request.form['name'])
if Wiki.is_registered(wiki_name):
flash("Site already exists")
return redirect(redirect_url())
else:
Wiki(repo_dir + "/" + wiki_name)
s = Site()
s.create(name=wiki_name, repo=wiki_name)
instances.pop(wiki_name, None)
return redirect('http://%s.%s' % (wiki_name, config.hostname))
else:
return render_template('_new/index.html')
@app.route("/logout/")
def logout():
logout_user()
del session['user']
User.logout()
return redirect(url_for('root'))
@app.route("/commit/<sha>/<name>")
@ -122,55 +176,40 @@ def create_app(subdomain=None):
else:
return redirect('/create/'+cname)
@app.route("/compare/<name>/<regex('[^.]+'):fsha><regex('\.{2,3}'):dots><regex('.+'):lsha>")
def compare(name, fsha, dots, lsha):
diff = w.compare(name, fsha, lsha)
return render_template('page/compare.html', name=name, diff=diff)
@app.route("/register", methods=['GET', 'POST'])
def register():
if request.method == 'POST':
user = User()
if user.get_by_email(request.form['email']):
flash('Email is already taken')
return redirect('/register')
if user.get_by_username(request.form['username']):
flash('Username is already taken')
return redirect('/register')
email = request.form['email'].lower()
# Create user and login
u = User.create(email=email,
username=request.form['username'],
password=bcrypt.generate_password_hash(request.form['password']),
avatar=gravatar_url(email))
login_user(CurrentUser(u.id))
return redirect("/")
if User.register(request.form.get('username'), request.form.get('email'), request.form.get('password')):
return redirect(url_for('root'))
else:
# Login failed
return redirect(url_for('register'))
else:
return render_template('account/register.html')
@app.route("/login", methods=['GET', 'POST'])
def login():
if request.method == 'POST':
if User.auth(request.form['email'], request.form['password']):
return redirect("/")
return redirect(redirect_url(referrer=url_for('root')))
else:
flash("Email or Password invalid")
return redirect("/login")
else:
return render_template('account/login.html')
@app.route("/history/<name>")
def history(name):
history = w.get_history(name)
return render_template('page/history.html', name=name, history=history)
@app.route("/edit/<name>", methods=['GET', 'POST'])
@login_required
def edit(name):
data = w.get_page(name)
cname = to_canonical(name)
@ -188,14 +227,14 @@ def create_app(subdomain=None):
else:
return redirect('/create/'+cname)
@app.route("/delete/<name>", methods=['POST'])
@login_required
def delete(name):
pass
@app.route("/create/", methods=['GET', 'POST'])
@app.route("/create/<name>", methods=['GET', 'POST'])
@login_required
def create(name=None):
cname = ""
if name:

View file

@ -1,27 +1,13 @@
import rethinkdb as rdb
import bcrypt
import redis
from flask import session
from flask.ext.login import login_user
from flask import session, flash
from flask.ext.login import login_user, logout_user
from rethinkORM import RethinkModel
from realms import config
# Default DB connection
conn = rdb.connect(config.db['host'], config.db['port'], db=config.db['dbname'])
# Default Cache connection
cache = redis.StrictRedis(host=config.cache['host'], port=config.cache['port'])
from util import gravatar_url
from services import db
def init_db():
if not config.db['dbname'] in rdb.db_list().run(conn) and config.ENV is not 'PROD':
# Create default db and repo
print "Creating DB %s" % config.db['dbname']
rdb.db_create(config.db['dbname']).run(conn)
for tbl in ['sites', 'users', 'pages']:
rdb.table_create(tbl).run(conn)
def to_dict(cur, first=False):
def to_dict(cur, first):
ret = []
for row in cur:
ret.append(row)
@ -33,9 +19,11 @@ def to_dict(cur, first=False):
class BaseModel(RethinkModel):
_conn = db
def __init__(self, **kwargs):
if not kwargs.get('conn'):
kwargs['conn'] = conn
kwargs['conn'] = db
super(BaseModel, self).__init__(**kwargs)
@classmethod
@ -66,7 +54,7 @@ class CurrentUser():
return self.id
def is_active(self):
return True
return True if self.id else False
def is_anonymous(self):
return False if self.id else True
@ -100,8 +88,36 @@ class User(BaseModel):
return False
if bcrypt.checkpw(password, data['password']):
login_user(CurrentUser(data['id']))
session['user'] = data
cls.login(data['id'], data)
return True
else:
return False
@classmethod
def register(cls, username, email, password):
user = User()
email = email.lower()
if user.get_by_email(email):
flash('Email is already taken')
return False
if user.get_by_username(username):
flash('Username is already taken')
return False
# Create user and login
u = User.create(email=email,
username=username,
password=bcrypt.hashpw(password, bcrypt.gensalt(10)),
avatar=gravatar_url(email))
User.login(u.id, user.get_one(u.id, 'id'))
@classmethod
def login(cls, id, data=None):
login_user(CurrentUser(id), True)
session['user'] = data
@classmethod
def logout(cls):
logout_user()
session.pop('user', None)

View file

@ -1,8 +1,7 @@
import time
from functools import update_wrapper
from flask import request, g
from realms import app
from models import cache
from services import cache
class RateLimit(object):
@ -28,10 +27,10 @@ def get_view_rate_limit():
def on_over_limit(limit):
return 'You hit the rate limit', 400
return 'Slow it down', 400
def ratelimit(limit, per=300, send_x_headers=True,
def ratelimiter(limit, per=300, send_x_headers=True,
over_limit=on_over_limit,
scope_func=lambda: request.remote_addr,
key_func=lambda: request.endpoint):
@ -45,14 +44,3 @@ def ratelimit(limit, per=300, send_x_headers=True,
return f(*args, **kwargs)
return update_wrapper(rate_limited, f)
return decorator
@app.after_request
def inject_x_rate_headers(response):
limit = get_view_rate_limit()
if limit and limit.send_x_headers:
h = response.headers
h.add('X-RateLimit-Remaining', str(limit.remaining))
h.add('X-RateLimit-Limit', str(limit.limit))
h.add('X-RateLimit-Reset', str(limit.reset))
return response

11
realms/services.py Normal file
View file

@ -0,0 +1,11 @@
import rethinkdb as rdb
import redis
import config
# Default DB connection
db = rdb.connect(config.db['host'], config.db['port'], db=config.db['dbname'])
# Default Cache connection
cache = redis.StrictRedis(host=config.cache['host'], port=config.cache['port'])

View file

@ -7,7 +7,7 @@
<div class="form-group">
<label for="wiki" class="control-label">Site Name</label>
<div class="input-group">
<input id="wiki" name="name" type="text" class="form-control" />
<input id="wiki" name="name" type="text" class="form-control" value="{{ request.args.get('site') }}" />
<span class="input-group-addon">.realms.io</span>
</div>
</div>

View file

@ -3,18 +3,12 @@
<h2>Account</h2>
<form method="POST" role="form" class="form-horizontal">
<form method="POST" role="form">
<div class="form-group">
<label for="email" class="col-md-2 control-label">Email</label>
<div class="col-md-10">
<label for="email" class="control-label">Email</label>
<input id="email" type="text" class="form-control" value="{{ session['user']['email'] }}" />
</div>
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" class="btn btn-primary" value="Save">
</div>
</div>
</form>
{% endblock %}

View file

@ -4,8 +4,10 @@ from lxml.html.clean import clean_html
import ghdiff
from gittle import Gittle
from dulwich.repo import NotGitRepository
from util import to_canonical
from models import Site
class MyGittle(Gittle):
@ -54,13 +56,17 @@ class Wiki():
def __init__(self, path):
try:
self.repo = MyGittle.init(path)
except OSError:
# Repo already exists
self.repo = MyGittle(path)
except NotGitRepository:
self.repo = MyGittle.init(path)
self.path = path
@staticmethod
def is_registered(name):
s = Site()
return True if s.get_by_name(name) else False
def write_page(self, name, content, message=None, create=False, username=None, email=None):
content = clean_html(content)
filename = self.cname_to_filename(to_canonical(name))