/
main.py
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/
main.py
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import os
import re
import cgi
import webapp2
import jinja2
import logging
import utils
import models
from models import User, Querydbase, Reply
from google.appengine.ext import db
import datetime
count = 0
# Set log level to debug
logging.getLogger().setLevel(logging.ERROR)
# Initialize jinja templating environment
template_dir = os.path.join(os.path.dirname(__file__), 'templates')
jinja_env = jinja2.Environment(loader = jinja2.FileSystemLoader(template_dir),
autoescape = True)
# Wiki page model for google datastore
class Wiki(db.Model):
urlpath = db.StringProperty(required = True)
content = db.TextProperty(required = True)
created = db.DateTimeProperty(auto_now_add = True)
last_modified = db.DateTimeProperty(auto_now = True)
def wiki_key(name = 'default'):
return db.Key.from_path('wikis', name)
def get_wikipage_by_path(pagepath):
return Wiki.gql("WHERE urlpath = '%s'"%pagepath).get()
def render_str(template, **params):
t = jinja_env.get_template(template)
return t.render(params)
class WikiHandler(webapp2.RequestHandler):
def write(self, *a, **kw):
self.response.out.write(*a, **kw)
def render_str(self, template, **params):
return render_str(template, **params)
def render(self, template, **kw):
self.write(self.render_str(template, **kw))
class Signup(WikiHandler):
def render_signup(self,
username="",
nameerror="",
passworderror="",
verifyerror="",
email="",
emailerror=""):
self.render("wiki-signup-form.html",
username=username,
nameerror=nameerror,
passworderror=passworderror,
verifyerror=verifyerror,
email=email,
emailerror=emailerror)
# given user_id and pwhash, create user_id cookie
def put_user_id_cookie(self, user_id, pwhash):
hash = pwhash.split('|')[0]
return '%s|%s'%(user_id, hash)
def get(self):
self.render_signup()
def post(self):
user_name = self.request.get('username')
user_password = self.request.get('password')
user_verify = self.request.get('verify')
user_email = self.request.get('email')
name = utils.valid_username(user_name)
password = utils.valid_password(user_password)
verify = utils.valid_verify(user_verify, user_password)
email = utils.valid_email(user_email)
nameerror = passworderror = verifyerror = emailerror = ""
if not name:
nameerror = "That's not a valid username"
if not password:
passworderror = "That's not a valid password"
if password and not verify:
verifyerror = "Your passwords didn't match"
if user_email and not email:
emailerror = "That's not a valid email"
if (not (name and password and verify)) or (user_email and not email):
self.render_signup(user_name, nameerror, passworderror,
verifyerror, user_email, emailerror)
else:
# lookup user
u = User.gql("WHERE username = '%s'"%user_name).get()
# If user already exists
if u:
nameerror = "That user already exists"
self.render_signup(user_name, nameerror, passworderror,
verifyerror, user_email, emailerror)
else:
# make salted password hash
h = utils.make_pw_hash(user_name, user_password)
u = User(username=user_name, password=h)
u.put()
user_id = u.key().id()
uid_cookie = str(self.put_user_id_cookie(user_id, h))
self.response.headers.add_header("Set-Cookie", "user_id=%s; Path=/"%uid_cookie)
self.redirect("/")
class Login(WikiHandler):
def render_login(self, username="", error=""):
self.render("wiki-login-form.html", username=username, error=error)
# given user_id and pwhash, create user_id cookie
def put_user_id_cookie(self, user_id, pwhash):
hash = pwhash.split('|')[0]
return '%s|%s'%(user_id, hash)
def get(self):
self.render_login()
def post(self):
user_name = self.request.get('username')
user_password = self.request.get('password')
# Look up user
u = models.get_user_by_name(user_name)
if not u or not utils.valid_pw(user_name, user_password, u.password):
error = "Invalid login"
self.render_login(user_name, error)
else:
user_id = u.key().id()
uid_cookie = str(self.put_user_id_cookie(user_id, u.password))
self.response.headers.add_header("Set-Cookie", "user_id=%s; Path=/"%uid_cookie)
self.redirect("/showqu")
class Logout(WikiHandler):
def get(self):
self.response.headers.add_header('Set-Cookie', 'user_id=; Path=/')
self.redirect("/")
#
# We arrive here either because 1) a user is logged in and clicked on the edit link for a page or 2) someone directly
# typed in the _edit link but is not logged in.
# We validate the user is logged in and if so we display the edit page, otherwise redirect to the wiki page.
# we take the new content entered in the post form and update the page contents.
#
class addcomment(WikiHandler):
def post(self):
a = self.request.get("key")
self.response.out.write(a)
def rendercom(self, key):
self.render("addcomment.html", key = key)
class postquestion(WikiHandler):
def get(self):
cookie = self.request.cookies.get('user_id')
username = utils.get_username_from_cookie(cookie)
if username:
self.render("askquestion.html",user = username)
else:
self.redirect("/")
def post(self):
cookie = self.request.cookies.get('user_id')
username = utils.get_username_from_cookie(cookie)
question = self.request.get('question')
subject = self.request.get('subject')
if question:
published = datetime.datetime.now()
created = datetime.datetime.now()
count = Querydbase.all().count()
g = Querydbase(questionid = str(count), username = username, subject = subject, question = question);
count = count+1
g.put()
# self.response.out.write(subject)
self.redirect('/')
else :
self.redirect("/postquestion")
class show(WikiHandler):
"""docstring for show"""
def get(self):
cookie = self.request.cookies.get('user_id')
username = utils.get_username_from_cookie(cookie)
# logging.error("wikipage get, cookie %s pagepath %s\n", cookie, pagepath)
if username:
a = "Datastructures"
h = Querydbase.all()
com = Reply.all()
f = datetime.timedelta(0,19800)
self.render("base.html",h = h, f =f, user = username, comment = com, subject = a)
else :
self.response.out.write("Sdf")
class showos(WikiHandler):
"""docstring for show"""
def get(self):
cookie = self.request.cookies.get('user_id')
username = utils.get_username_from_cookie(cookie)
# logging.error("wikipage get, cookie %s pagepath %s\n", cookie, pagepath)
if username:
a = "OperatingSystems"
h = Querydbase.all().filter("subject =", a)
com = Reply.all()
f = datetime.timedelta(0,19800)
self.render("base.html",h = h, f =f, user = username, comment = com, subject= a)
else :
self.response.out.write("Sdf")
class showc(WikiHandler):
"""docstring for show"""
def get(self):
cookie = self.request.cookies.get('user_id')
username = utils.get_username_from_cookie(cookie)
# logging.error("wikipage get, cookie %s pagepath %s\n", cookie, pagepath)
if username:
a = "C"
h = Querydbase.all().filter("subject =", a)
com = Reply.all()
f = datetime.timedelta(0,19800)
self.render("base.html",h = h, f =f, user = username, comment = com, subject = a)
else :
self.response.out.write("Sdf")
class showjava(WikiHandler):
"""docstring for show"""
def get(self):
cookie = self.request.cookies.get('user_id')
username = utils.get_username_from_cookie(cookie)
# logging.error("wikipage get, cookie %s pagepath %s\n", cookie, pagepath)
if username:
a = "Java"
h = Querydbase.all().filter("subject = ", a)
com = Reply.all()
f = datetime.timedelta(0,19800)
self.render("base.html",h = h, f =f, user = username, comment = com, subject= a)
else :
self.response.out.write("Sdf")
class showweb(WikiHandler):
"""docstring for show"""
def get(self):
cookie = self.request.cookies.get('user_id')
username = utils.get_username_from_cookie(cookie)
# logging.error("wikipage get, cookie %s pagepath %s\n", cookie, pagepath)
if username:
a = "Webprogramming"
h = Querydbase.all().filter("subject = ", a)
com = Reply.all()
f = datetime.timedelta(0,19800)
self.render("base.html",h = h, f =f, user = username, comment = com, subject= a)
else :
self.response.out.write("Sdf")
class koke(WikiHandler):
def post(self):
cookie = self.request.cookies.get('user_id')
username = utils.get_username_from_cookie(cookie)
questionid = self.request.get("foo")
address_k = db.Key.from_path('Querydbase', int(questionid))
address = db.get(address_k)
address.likes = address.likes+1
address.put()
self.redirect('/showqu')
class commentpage(WikiHandler):
def post(self):
cookie = self.request.cookies.get('user_id')
username = utils.get_username_from_cookie(cookie)
a = self.request.get("key")
b = self.request.get("comment")
a = a.replace(" ", "")
u = Querydbase.gql("WHERE questionid = '%s'"%a).get()
cor = Reply(post=a, author=username, text=b)
cor.put()
self.redirect('/showqu')
class WikiPage(WikiHandler):
def get(self):
cookie = self.request.cookies.get('user_id')
username = utils.get_username_from_cookie(cookie)
# logging.error("wikipage get, cookie %s pagepath %s\n", cookie, pagepath)
# editurl = "/_edit" + pagepath
# mywikipage = get_wikipage_by_path(pagepath)
# If page already exists in Wiki, retreive content and display
if username:
self.redirect("/showqu")
else:
self.render("index.html")
DEBUG = True
jaffa = r'(/(?:[a-zA-Z0-9_-]+/?)*)'
PAGE_RE = r'(/(?:[a-zA-Z0-9_-]+/?)*)'
app = webapp2.WSGIApplication([('/signup', Signup),
('/login', Login),
('/logout', Logout),
('/postquestion', postquestion),
('/showqu', show),
("/showos", showos),
("/showjava", showjava),
("/showc", showc),
("/showweb", showweb),
# ('/_edit' + PAGE_RE, EditPage),
("/addcomment" ,addcomment),
("/poscomment", commentpage),
("/like", koke),
# (PAGE_RE, WikiPage),
('/', WikiPage)
],
debug=DEBUG)