Parse Storage

from django.core.files.storage import Storage
from django.conf import settings
import json, httplib, os

import logging

logger = logging.getLogger('project.parse')

class ParseStorage(Storage):
  def __init__(self, option=None):
    print "Initializing a ParseStorage"
    logger.debug("Initializing a ParseStorage")

  def send(self, name, data):
    logger.debug("ParseStorage sending %s" % name)
    connection = httplib.HTTPSConnection('api.parse.com', 443)
    connection.connect()
    connection.request('POST', '/1/files/%s' % name, data, {
      "X-Parse-Application-Id": settings.PARSE_APPLICATION_ID,
      "X-Parse-REST-API-Key": settings.PARSE_API_KEY,
      "Content-Type": "image/jpeg"
    })
    result = json.loads(connection.getresponse().read())
    logger.debug("Send Result: %s" % result)
    return result

  def fetch(self, name):
    connection = httplib.HTTPSConnection('file.parse.com', 443)
    connection.connect()
    connection.request('GET', name, '', {})
    result = connection.getresponse().read()

  def delete(self, name):
    logger.debug("ParseStorage deleting %s" % name)
    connection = httplib.HTTPSConnection('api.parse.com', 443)
    connection.connect()
    connection.request('DELETE', '/1/files/%s' % name, '', {
      "X-Parse-Application-Id": settings.PARSE_APPLICATION_ID,
      "X-Parse-Master-Key": settings.PARSE_MASTER_KEY,
    })
    result = json.loads(connection.getresponse().read())

  def url(self, name):
    logger.debug("Getting URL for %s" % name)
    return 'http://files.parse.com/gibberish/%s' % os.path.basename(name)

  def path(self, name):
    logger.debug("Getting path for %s" % name)
    raise NotImplementedError

  def exists(self, name):
    # Parse ensures that you can always add a file named "name"
    # TODO: This has to check that the whatever exists, or everything gets uploaded *again*
    logger.debug("Checking existence of: %s" % name)
    return False

  def listdir(self):
    logger.debug("Listing contents of directory")
    raise NotImplementedError

  def size(self, name):
    logger.debug("Checking size of file: %s" % name)
    raise NotImplementedError

  def _save(self, name, path):
    logger.debug("ParseStorage saving %s at %s" % (name, path))
    parse_name = self.send(os.path.basename(name), path)['name']
    logger.debug("ParseStorage saved as %s" % parse_name)
    return parse_name