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website.py
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website.py
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#!/usr/bin/env python
# encoding: utf-8
"""
website.py
Created by Jerry on 2011-04-19.
Copyright (c) 2011 __MyCompanyName__. All rights reserved.
"""
import sys
import os
import logging
import random
import hashlib
import re
from datetime import datetime, timedelta
from urllib import unquote, quote_plus
sys.path.append(os.path.join(os.path.dirname(__file__), 'lib'))
from google.appengine.ext import webapp
from google.appengine.ext.webapp import util
from google.appengine.ext import db
from google.appengine.api import memcache
from jinja2 import Environment, FileSystemLoader
from cookies import Cookies
from l10n import GetMessages,GetSupportedLanguages
import markdown
class Taskpad(db.Model):
pad_name = db.StringProperty()
share_name = db.StringProperty()
password = db.StringProperty()
contents = db.TextProperty()
length = db.IntegerProperty()
caret_position = db.IntegerProperty()
scroll_position = db.IntegerProperty()
created = db.DateTimeProperty()
updated = db.DateTimeProperty()
class BaseHandler(webapp.RequestHandler):
blocked_names = ['admin', 'user', 'u', 'login', 'logout', 'password', 'share', 'app', 'rename', 'check_if_name_exists',
'name', 'taskpad', 'todo', 'tasks', 'ads', 'feed', 'rss', 'auth', 'html', 'xml', 'ajax', 'static', 'data', 'js',
'search', 'list', 'find', 'about', 'cleanup']
def write(self, content):
"""docstring for write"""
self.response.out.write(content)
def render(self, template_name, **kargs):
"""docstring for render"""
self.write(self.render_string(template_name, **kargs))
def render_string(self, template_name, **kargs):
"""docstring for render_string"""
template = Environment(loader=FileSystemLoader(os.path.join(os.path.dirname(__file__), 'views'))).get_template(template_name)
host = self.request.headers['HOST']
if not host.startswith("localhost"):
host = "taskpad.me"
l10n = GetMessages(self, self.accept_lang)
return template.render(
user_browser=self.user_browser,
domain = host,
l10n = l10n,
**kargs)
@property
def user_browser(self):
"""docstring for user_browser"""
try:
user_agent = self.request.headers['User-Agent']
if user_agent.lower().find('kindle') > 0:
return "kindle"
elif user_agent.lower().find('iphone') > 0:
return "iphone"
elif user_agent.lower().find('firefox') > 0:
return "firefox"
elif user_agent.lower().find('chrome') > 0:
return "chrome"
elif user_agent.lower().find('safari') > 0:
return "safari"
elif user_agent.lower().find('MSIE 6.0') > 0:
return "ie6"
elif user_agent.lower().find('MSIE 7.0') > 0:
return "ie7"
elif user_agent.lower().find('MSIE 8.0') > 0:
return "ie8"
elif user_agent.lower().find('MSIE 9.0') > 0:
return "ie9"
else:
return False
except Exception, e:
return "unkown"
@property
def accept_lang(self):
"""docstring for bwr_lang"""
langs = GetSupportedLanguages()
lang = self.request.get('lang')
if lang and lang in langs:
self.cookies['lang'] = lang
return lang
if 'lang' in self.cookies and self.cookies['lang'] in langs:
return self.cookies['lang']
try:
accept_language = self.request.headers['Accept-Language']
except:
accept_language = "zh"
return accept_language
@property
def cookies(self):
"""docstring for cookies"""
return Cookies(self, max_age = 315360000, path = '/')
def random_str(self, str_len=5, t=1):
"""docstring for random_str"""
letters = "abcdefghigklmnoporstuvwxyz"
numbers = "0123456789"
upper_case = "ABCDEFGHIGKLMNOPORSTUVWXYZ"
if t is 1:
feed = letters+numbers
else:
feed = letters+upper_case+numbers
return "".join(random.sample(feed, str_len))
def new_pad_name(self):
"""docstring for new_pad_name"""
pad_name = self.random_str(random.randint(3,5))
pad = self.get_by_pad_name(pad_name)
if pad or pad_name in self.blocked_names:
return self.new_pad_name()
else:
return pad_name
def new_share_name(self):
"""docstring for new_share_name"""
share_name = self.random_str(random.randint(5,7))
pad = self.get_by_share_name(share_name)
if pad or share_name in self.blocked_names:
return self.new_share_name()
else:
return share_name
def get_by_pad_name(self, pad_name):
"""docstring for get_pad_by_name"""
return Taskpad.get_by_key_name(pad_name)
def get_by_share_name(self, share_name):
"""docstring for get_pad_by_name"""
pad = Taskpad.gql("WHERE share_name =:1", share_name).fetch(limit=1)
if pad:
return pad[0]
else:
return None
def clean_name(self, name):
"""docstring for clean_name"""
name = name.lower()
return re.sub(r"[^-a-z0-9]+", "-", name)
def new_pad(self, pad_name=None, share_name=None, caret_position=0,
scroll_position=0, password='', contents='', created=None, updated=None):
"""docstring for new_pad"""
if pad_name is None:
pad_name = self.new_pad_name()
else:
pad_name = self.clean_name(pad_name)
if share_name is None:
share_name = self.new_share_name()
if created is None:
created = datetime.now()
# if updated is None:
# updated = datetime.now()
if contents:
length = len(contents)
else:
length = 0
pad = Taskpad(key_name=pad_name)
pad.pad_name = pad_name
pad.share_name = share_name
pad.caret_position = caret_position
pad.scroll_position = scroll_position
pad.password = password
pad.contents = contents
pad.length = 0
pad.created = created
pad.updated = updated
pad.put()
return pad
def is_auth(self, pad_name, password):
"""docstring for is_auth"""
if not password:
return True
ck = 'pp_%s' % hashlib.sha1( pad_name ).hexdigest()
if ck in self.cookies and self.cookies[ck] == hashlib.sha1( pad_name + password ).hexdigest():
return True
else:
return False
def add_auth(self, pad_name, password):
"""docstring for add_auth"""
ck = 'pp_%s' % hashlib.sha1( pad_name ).hexdigest()
self.cookies[ck] = hashlib.sha1( pad_name + password ).hexdigest()
def remove_auth(self, pad_name):
"""docstring for remove_auth"""
ck = 'pp_%s' % hashlib.sha1( pad_name ).hexdigest()
del self.cookies[ck]
class MainHandler(BaseHandler):
"""docstring for MainHandler"""
def get(self):
"""docstring for get"""
pad = self.new_pad()
self.redirect("/%s" % pad.pad_name)
class PadHandler(BaseHandler):
"""docstring for MainHandler"""
def get(self, pad_name):
"""docstring for get"""
pad = self.get_by_pad_name(pad_name[0:50])
if not pad:
pad = self.new_pad(pad_name[0:50])
if not self.is_auth(pad.pad_name, pad.password):
self.redirect("/login/%s" % pad.pad_name)
if pad.pad_name != pad_name:
self.redirect("/%s" % pad.pad_name)
self.render('taskpad.html', pad_name=pad_name, pad=pad)
def post(self, pad_name):
"""docstring for post"""
pad = self.get_by_pad_name(pad_name)
if not pad:
self.write("pad_not_exists")
elif not self.is_auth(pad.pad_name, pad.password):
self.response.set_status(403)
else:
contents = self.request.get('contents')
caret_position = self.request.get('caret_position', 0)
scroll_position = self.request.get('scroll_position', 0)
if caret_position.isdigit():
caret_position = int(caret_position)
else:
caret_position = 0
if scroll_position.isdigit():
scroll_position = int(scroll_position)
else:
scroll_position = 0
pad.contents = contents
pad.length = len(contents)
pad.caret_position = caret_position
pad.scroll_position = scroll_position
pad.updated = datetime.now()
pad.put()
self.write("ok")
class CheckNameHandler(BaseHandler):
"""docstring for CheckNameHandler"""
def get(self, pad_name):
self.post(pad_name)
def post(self, pad_name):
"""docstring for post"""
pad = self.get_by_pad_name(pad_name)
if pad or not pad_name or len(pad_name) < 3 or pad_name in self.blocked_names:
self.write("true")
else:
self.write("false")
class RenameHandler(BaseHandler):
"""docstring for RenameHandler"""
def post(self, pad_name):
"""docstring for post"""
new_name = self.request.get('new_name')
new_name = self.clean_name(new_name)
old_pad = self.get_by_pad_name(pad_name)
ex_pad = self.get_by_pad_name(new_name)
if not new_name or len(new_name) < 3 or ex_pad:
self.redirect("/%s" % pad_name)
return
elif old_pad and new_name != old_pad.pad_name \
and (not old_pad.password or self.is_auth(old_pad.pad_name, old_pad.password)):
self.new_pad(
pad_name = new_name,
share_name = old_pad.share_name,
password = old_pad.password,
contents = old_pad.contents,
caret_position = old_pad.caret_position,
scroll_position = old_pad.scroll_position,
created = old_pad.created,
updated = datetime.now()
)
self.remove_auth(pad_name)
self.add_auth(new_name, old_pad.password)
# remove old pad
old_pad.delete()
self.redirect("/%s" % new_name)
class PasswordHandler(BaseHandler):
"""docstring for PasswordHandler"""
def get(self, action, pad_name):
"""docstring for get"""
self.post(action, pad_name)
def post(self, action, pad_name):
"""docstring for post"""
pad = self.get_by_pad_name(pad_name)
if pad:
if action == 'set':
password = self.request.get('password')
pad.password = hashlib.md5(password).hexdigest()
pad.put()
self.add_auth(pad.pad_name, pad.password)
elif action == 'remove' \
and (not pad.password or self.is_auth(pad.pad_name, pad.password)):
pad.password = ''
pad.put()
self.remove_auth(pad_name)
self.redirect("/%s" % pad.pad_name)
class ShareHandler(BaseHandler):
"""docstring for ShareHandler"""
def get(self, share_name):
"""docstring for get"""
pad = self.get_by_share_name(share_name)
if pad:
if pad.contents.startswith("!#markdown\n"):
pad.contents = markdown.markdown(pad.contents[11:])
self.render('share.html', pad_name=False, read_only_mode=True, pad=pad)
else:
self.render('error.html')
class LoginHandler(BaseHandler):
"""docstring for MainHandler"""
def get(self, pad_name):
"""docstring for get"""
pad = self.get_by_pad_name(pad_name)
if not pad or not pad.password or self.is_auth(pad.pad_name, pad.password):
self.redirect("/%s" % pad.pad_name)
else:
self.render('login.html', pad_name=pad_name)
def post(self, pad_name):
"""docstring for post"""
pad = self.get_by_pad_name(pad_name)
if not pad or not pad.password or self.is_auth(pad.pad_name, pad.password):
self.redirect("/%s" % pad_name)
else:
password = self.request.get('pad_password')
if hashlib.md5(password).hexdigest() == pad.password:
self.add_auth(pad.pad_name, pad.password)
self.redirect("/%s" % pad.pad_name)
else:
self.render('login.html', pad_name=pad_name, error=True)
class LogoutHandler(BaseHandler):
"""docstring for LogoutHandler"""
def get(self, pad_name):
"""docstring for get"""
pad = self.get_by_pad_name(pad_name)
if not pad or not pad.password:
self.redirect("/%s" % pad_name)
else:
self.remove_auth(pad_name)
self.redirect("/login/%s" % pad.pad_name)
class ErrorHandler(BaseHandler):
"""docstring for MainHandler"""
def get(self):
"""docstring for get"""
self.render('error.html')
class CleanupHandler(BaseHandler):
"""docstring for CleanHandler"""
def get(self):
"""docstring for get"""
pads = Taskpad.gql("WHERE length=:1 and created<:2", 0, datetime.now()-timedelta(days=7))
db.delete(pads)
def main():
logging.getLogger().setLevel(logging.INFO)
application = webapp.WSGIApplication([
('/', MainHandler),
('/cleanup', CleanupHandler),
('/login/([a-zA-Z0-9\-_]+)', LoginHandler),
('/logout/([a-zA-Z0-9\-_]+)', LogoutHandler),
('/share/([a-zA-Z0-9\-_]+)', ShareHandler),
('/check_if_name_exists/([a-zA-Z0-9\-_]+)', CheckNameHandler),
('/rename/([a-zA-Z0-9\-_]+)', RenameHandler),
('/password/(set|remove)/([a-zA-Z0-9\-_]+)', PasswordHandler),
('/(?:admin|error|logout)', ErrorHandler),
('/([a-zA-Z0-9\-_]+)', PadHandler),
('/.*', ErrorHandler),
], debug=False)
util.run_wsgi_app(application)
if __name__ == '__main__':
main()