Heatmap poxy

index.py

import base64

from google.appengine.api import datastore

from google.appengine.api import datastore_errors

from google.appengine.api import datastore_types

import hashlib

data = req.get("data")

if len(data) > 0:

  m = hashlib.md5()

  m.update(data)

  the_md5  = m.hexdigest()

  ent = datastore.Entity(kind="heatmap_image", name=the_md5)

  ent['data'] = data

  datastore.Put(ent)

  echo("http://clstff.appspot.com/wave/googlewave.com%21w%2BaXCOteWYA?image=" + the_md5)

image = req.get("image")

if len(image) > 0:

  key = datastore.Key.from_path("heatmap_image", image)

  try:

    ent = datastore.Get(key)

    data = ent['data']

    data = base64.b64decode(data)

    resp.headers["Content-Type"] = "image/png"

    echo(data)

  except datastore_errors.EntityNotFoundError:

    pass