def write(name, image, format):
key = bucket.new_key(name)
buf = StringIO.StringIO()
image.save(buf, format=format, quality=8)
key.set_metadata('Content-Type', 'image/'+format.lower())
key.set_contents_from_string(buf.getvalue())
buf.close()
def write(name, image, format):
key = bucket.new_key(name)
buf = StringIO.StringIO()
image.save(buf, format=format, quality=8)
key.set_metadata('Content-Type', 'image/'+format.lower())
key.set_contents_from_string(buf.getvalue())
# Make the image publicly available
key.set_canned_acl('public-read')
buf.close()
def upload():
# Get the uploaded image from the user
upload = request.files.get('image')
# If the user didn't actually send anything then error
if not upload: return 'no image'
# Set some variables for convenience; upload.file is a
# file-descriptor like object representing the data the
# user has uploaded.
file = upload.file
image = None
# Attempt to open the file the user uploaded as an image
# and if it fails then tell the user they've uploaded an
# invalid image.
try:
image = Image.open(file)
except:
return 'invalid image'
# Since Image.open moves the file pointer as it checks the
# validity of the image, we need to rewind it for when we
# place all the data into the bucket.
file.seek(0)
# Generate a new id and key to place the image into.
id = generate_id()
# Store the original image into the bucket.
key = bucket.new_key(id+'-original')
# Set the Content-Type metadata to the appropriate mime-type so
# that when your data is served over S3 the browser can display
# the image properly (the default is application/octet-stream).
key.set_metadata('Content-Type', 'image/'+image.format.lower())
# Finally load the image data into S3.
key.set_contents_from_file(file)
# Make the image publicly available
key.set_canned_acl('public-read')
# Send a message to a worker to begin processing the resizing
# of the freshly minted image.
notify_worker(id, sizes)
# Return the URLs to the images.
return { key: url(id+'-'+key) for key in ['original'] + sizes.keys() }
