uploader.py

import cherrypy
import boto

class Uploader(object):
  @cherrypy.expose
  @cherrypy.tools.json_out()
  def index(self, myFile=None):
    try:
      FileValidator(myFile)
    except ValueError as err:
      return {"error": str(err)}

    try:
      return { "success": self.push_to_s3(myFile) }
    except ValueError as err:
      return {"error": "error uploading file"}

  def push_to_s3(self, file):
    s3 = boto.connect_s3()
    bucket = s3.get_bucket('[bucket-name]')
    key = bucket.new_key(file.filename)
    key.set_contents_from_file(file.file)
    #return path to get key of this shiit
class FileValidator(object):
  def __init__(self, file_param):
    if file_param is None:
      raise ValueError('empty params')
    if type(file_param) is not cherrypy._cpreqbody.Part:
      raise ValueError('this is not a file param')
    
    if str(file_param.content_type) != "text/xml":
      raise ValueError('invalid value format')


if __name__ == '__main__':
  cherrypy.quickstart(Uploader(), '/')