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main.py
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main.py
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import webapp2
import jinja2
import os
import util
import databases
import hmac
import json
import logging
import urllib
from google.appengine.ext import db
from google.appengine.api import urlfetch
from google.appengine.ext import blobstore
from google.appengine.ext.webapp import blobstore_handlers
from google.appengine.api import images
secret = 'secret'
template_dir = os.path.join(os.path.dirname(__file__), 'templates')
jinja_env = jinja2.Environment(loader = jinja2.FileSystemLoader(template_dir))
# Shortcut handler for simpler function calls
class Handler(webapp2.RequestHandler):
def write(self, *a, **kw):
self.response.out.write(*a, **kw)
def render_str(self, template, **params):
t = jinja_env.get_template(template)
return t.render(params)
def render(self, template, **kw):
self.write(self.render_str(template, **kw))
def set_cookie(self, name, value):
val = self.make_secure_val(value)
return self.response.headers.add_header("Set-Cookie", "%s=%s" % (name, val))
def make_secure_val(self, val):
return '%s|%s' % (val, hmac.new(secret, val).hexdigest())
def check_secure_val(self, secure_val):
val = secure_val.split('|')[0]
if secure_val == self.make_secure_val(val):
return val
class MainHandler(Handler):
def get(self):
if(self.request.cookies.get('user') and self.check_secure_val(self.request.cookies.get('user'))):
user = databases.User.get_by_id(int(self.request.cookies.get('user').split('|')[0]))
else:
user = None
posts = databases.Post.all().order('-time')
comments = databases.Comment.all().order('time')
images = databases.userImage.all()
frontPage = databases.frontPage.getText()
sidebar = databases.sidebar.getText()
self.render('base.html', user = user,
posts = posts,
comments = comments,
images = images,
frontPage = frontPage,
sidebar = sidebar)
class addPost(Handler):
def post(self):
if(self.request.cookies.get('user') and self.check_secure_val(self.request.cookies.get('user'))):
user = databases.User.get_by_id(int(self.request.cookies.get('user').split('|')[0]))
content = util.htmlify(self.request.POST['content'])
post = databases.Post.addPost(user, content)
self.render("post.html", post = post, user = user)
# output = {'name': user.name, 'content': self.request.get('content'), 'image': user.profileImage}
# output = json.dumps(output)
# self.write(output)
class addComment(Handler):
def post(self):
if(self.request.cookies.get('user') and self.check_secure_val(self.request.cookies.get('user'))):
user = databases.User.get_by_id(int(self.request.cookies.get('user').split('|')[0]))
content = util.htmlify(util.escape(self.request.POST['content']))
logging.debug(content)
postid = self.request.get('id')
post = databases.Post.get_by_id(int(postid))
if post:
comment = databases.Comment.addComment(post, user, content)
self.render('comments.html', comment = comment, post = post, user = user)
else:
self.write('ERROR')
class applaud(Handler):
def post(self):
error = False
if(self.request.cookies.get('user') and self.check_secure_val(self.request.cookies.get('user'))):
user = databases.User.get_by_id(int(self.request.cookies.get('user').split('|')[0]))
post = databases.Post.get_by_id(int(self.request.get('id')))
for i in databases.applause.all():
if i.post.key().id() == post.key().id() and i.user.key().id() == user.key().id():
self.write("ERROR")
error = True
if not error:
applaud = databases.applause(user = user, post = post)
applaud.put()
if post.applause:
post.applause += 1
post.put()
self.write(post.applause)
else:
post.applause = 1
post.put()
self.write(post.applause)
else:
self.redirect('/')
class register(Handler):
def get(self):
self.render('signup.html')
def post(self):
name = util.escape(self.request.get("user_first") + " " + self.request.get("user_last"))
password = util.escape(self.request.get("user_pass"))
email = util.escape(self.request.get("user_email"))
user = databases.User.register(name, password, email)
user.put()
data = db.Blob(urlfetch.Fetch("http://i.imgur.com/efHNR.gif").content)
filetype = 'gif'
name = 'blank_profile.gif'
image = databases.userImage(name = name, data = data, filetype = filetype, user = user)
image.put()
self.set_cookie("user", str(user.key().id()))
self.redirect('/')
class login(Handler):
def get(self):
self.render('login.html')
def post(self):
params = {}
error = False
email = util.escape(self.request.get("email"))
password = util.escape(self.request.get("password"))
params['email'] = email
if not email:
params['errorEmail'] = 'error'
params['errorMessage'] = "Please enter email"
error = True
if not password:
params['errorPass'] = 'error'
params['errorMessage'] = "Please enter password"
error = True
u = databases.User.by_email(email)
if not u:
params['errorEmail'] = 'error'
params['errorPass'] = 'error'
params['errorMessage'] = "Invalid email"
error = True
elif not util.valid_pw(email, password, u.pw_hash):
params['errorEmail'] = 'error'
params['errorPass'] = 'error'
params['errorMessage'] = "Invalid password"
error = True
if error:
self.render('login.html', **params)
else:
self.set_cookie('user', str(u.key().id()))
logging.info(u.name + " logged in")
self.redirect('/')
class logout(Handler):
def get(self):
self.set_cookie('user', '')
self.redirect('/')
class delete(Handler):
def get(self):
itemid = self.request.get("id")
type = self.request.get('type')
post = databases.Post.get_by_id(int(itemid))
comment = databases.Comment.get_by_id(int(itemid))
if(self.request.cookies.get('user') and self.check_secure_val(self.request.cookies.get('user'))):
user = databases.User.get_by_id(int(self.request.cookies.get('user').split('|')[0]))
else:
self.redirect('/')
if(type == 'post'):
comments = databases.Comment.all()
for comment in comments:
if comment.post.key().id() == post.key().id():
comment.delete()
for applaud in databases.applause.all():
if applaud.post.key().id() == post.key().id():
applaud.delete()
post.delete()
if(type == 'comment'):
comment.delete()
class profile(Handler):
def get(self):
if(self.request.cookies.get('user') and self.check_secure_val(self.request.cookies.get('user'))):
user = databases.User.get_by_id(int(self.request.cookies.get('user').split('|')[0]))
firstname = user.name.split(' ')[0]
lastname = user.name.split(' ')[1]
self.render('profile.html', user = user, firstname = firstname, lastname = lastname)
else:
self.redirect('/')
def post(self):
user = databases.User.get_by_id(int(self.request.cookies.get('user').split('|')[0]))
firstname = user.name.split(' ')[0]
lastname = user.name.split(' ')[1]
if self.request.get('user_password') == '' or util.valid_pw(user.email, self.request.get('user_password'), user.pw_hash) == False:
self.render('profile.html', password = 'Invalid Password', user = user, firstname = firstname, lastname = lastname)
else:
user.name = self.request.get('user_first') + " " + self.request.get('user_last')
user.email = self.request.get('user_email')
user.pw_hash = util.make_pw_hash(user.email, self.request.get('user_password'))
user.put()
if not self.request.POST[u'image'] == "":
try:
data = self.request.POST[u'image'].file.read()
name = self.request.POST[u'image'].filename
filetype = self.request.POST[u'image'].type
image = databases.userImage(name = name, data = data, filetype = filetype, user = user)
for i in databases.userImage.all():
if i.user.key().id() == user.key().id():
logging.debug('Deleted: ' + i.name)
i.delete()
logging.debug("Put: " + image.name)
image.put()
self.redirect('/')
except Exception as e:
error = "Image must be smaller than 1mb."
logging.error(e)
self.render('profile.html', user = user, firstname = firstname, lastname = lastname, error = error)
else:
logging.debug('No image')
self.redirect('/')
class changePass(Handler):
def get(self):
if(self.request.cookies.get('user') and self.check_secure_val(self.request.cookies.get('user'))):
user = databases.User.get_by_id(int(self.request.cookies.get('user').split('|')[0]))
self.render('changepass.html')
else:
self.redirect('/')
def post(self):
params = {}
error = False
if not self.request.get('oldpass'):
params['oldpass'] = 'Please enter your current password'
error = True
if not self.request.get('newpass'):
params['newpass'] = "Please enter a new password"
error = True
if not self.request.get('passval'):
params['valpass'] = 'Please enter the new password again'
error = True
if not self.request.get('valpass') == self.request.get('newpass'):
params['errorMessage'] = "Passwords didn't match"
if(self.request.cookies.get('user') and self.check_secure_val(self.request.cookies.get('user'))):
user = databases.User.get_by_id(int(self.request.cookies.get('user').split('|')[0]))
oldpass = self.request.get('oldpass')
newpass = self.request.get('newpass')
passval = self.request.get('passval')
if error:
self.render("changepass.html", **params)
else:
if util.valid_pw(user.email, oldpass, user.pw_hash) and (newpass == newpass):
passhash = util.make_pw_hash(user.email, newpass)
user.pw_hash = passhash
user.put()
self.redirect('/')
class imageHandler(Handler):
def get(self, id):
img = None
user = databases.User.get_by_id(int(id))
images = databases.userImage.all()
for i in images:
try:
if i.user.key().id() == user.key().id():
img = i
except:
pass
if img:
self.response.headers['Content-Type'] = 'text'
self.response.out.write( img.data )
class uploadForm(Handler):
def get(self):
if(self.request.cookies.get('user') and self.check_secure_val(self.request.cookies.get('user'))):
user = databases.User.get_by_id(int(self.request.cookies.get('user').split('|')[0]))
upload_url = blobstore.create_upload_url("/upimage")
self.render('upload.html', user = user, upload_url = upload_url)
else:
self.redirect('/')
class uploadImage(blobstore_handlers.BlobstoreUploadHandler):
def thumbnailer(self, blob_key):
blob_info = blobstore.get(blob_key)
if blob_info:
img = images.Image(blob_key=blob_key)
img.resize(width=300, height=300)
thumbnail = img.execute_transforms(output_encoding=images.PNG)
return thumbnail
def post(self):
user = databases.User.get_by_id(int(self.request.cookies.get('user').split('|')[0]))
caption = self.request.get('caption')
image = self.get_uploads('file')
for i in image:
blob_info = i
image = databases.largeImage(url = '/image/%s' % blob_info.key(), user = user, caption = caption)
image.put()
thumbnail = self.thumbnailer(blob_info.key())
image.thumbnail = thumbnail
image.put()
self.redirect('/photos/1')
class serve(blobstore_handlers.BlobstoreDownloadHandler):
def get(self, resource):
resource = str(urllib.unquote(resource))
blob_info = blobstore.BlobInfo.get(resource)
self.send_blob(blob_info)
class displayPhotos(Handler):
def get(self, page):
if(self.request.cookies.get('user') and self.check_secure_val(self.request.cookies.get('user'))):
user = databases.User.get_by_id(int(self.request.cookies.get('user').split('|')[0]))
else:
user = None
imageCount = databases.largeImage.all().order('-posted').count()
if(int(page) * 20 > imageCount):
button = False
else:
button = True
images = databases.largeImage.all().order('-posted')[:(20 * int(page))]
self.render('images.html', images = images, user = user, button= button)
class displayThumbnail(Handler):
def get(self, id):
image = databases.largeImage.get_by_id(int(id)).thumbnail
self.response.headers['Content-Type'] = 'image/png'
self.write(image)
class editInfo(Handler):
def get(self):
if(self.request.cookies.get('user') and self.check_secure_val(self.request.cookies.get('user'))):
user = databases.User.get_by_id(int(self.request.cookies.get('user').split('|')[0]))
frontPage = databases.frontPage.getText()
sidebar = databases.sidebar.getText()
self.render('editinfo.html', user = user, frontPage = frontPage, sidebar = sidebar)
else:
self.redirect("/")
def post(self):
if(self.request.cookies.get('user') and self.check_secure_val(self.request.cookies.get('user'))):
frontPage = self.request.POST['frontPage']
sidebar = self.request.POST['sidebar']
frontPage = util.htmlify(frontPage)
sidebar = util.htmlify(sidebar)
# if not frontPage:
# frontPage = ""
# if not sidebar:
# sidebar = ""
front = databases.frontPage.all()
if(front.count() > 0):
for i in front:
i.delete()
newFront = databases.frontPage(text = frontPage)
newFront.put()
side = databases.sidebar.all()
if(side.count() > 0):
for i in side:
i.delete()
newSide = databases.sidebar(text = sidebar)
newSide.put()
app = webapp2.WSGIApplication([('/', MainHandler),
('/register/?', register),
('/login/?', login),
('/logout/?', logout),
('/delete', delete),
('/profile/(\d+)', profile),
('/profile/?', profile),
('/post$', addPost),
('/addcomment$', addComment),
('/img/(\d+)', imageHandler),
('/changepassword', changePass),
("/upload", uploadForm),
('/upimage', uploadImage),
('/image/([^/]+)?', serve),
('/photos/(\d+)/?', displayPhotos),
('/thumbnail/(\d+)', displayThumbnail),
('/applaud', applaud),
('/editinfo', editInfo)],
debug=True)