def generate_upload_url(self, key, content_type=None, content_md5=None,
expires_in=constants.SECONDS_PER_DAY,
max_bytes=5 << 20):
"""Generates a URL for a PUT request to allow a client to store the specified key directly
to S3 from a browser or mobile client. 'max_bytes' limits the upload file size to prevent
D.O.S. attacks.
TODO(andy) max_bytes is not currently enforced, need to fix this.
"""
headers = {}
set_if_not_none(headers, 'Content-Type', content_type)
set_if_not_none(headers, 'Content-MD5', content_md5)
return self._s3_conn.generate_url(expires_in,
'PUT',
self._bucket_name,
key,
headers=headers or None)
def generate_url(self, key, method='GET', cache_control=None,
expires_in=constants.SECONDS_PER_DAY,
content_type=None):
"""Generates a URL that can be used retrieve the specified key. If 'cache_control' is
given, it will result in a Cache-Control header being added to any S3 responses. The
expires_in parameter specifies how long (in seconds) the URL is valid for.
content-type forces the content-type of the downloaded file. eg: use text/plain for logs.
"""
response_headers = {}
set_if_not_none(response_headers,
'response-cache-control', cache_control)
set_if_not_none(response_headers,
'response-content-type', content_type)
return self._s3_conn.generate_url(expires_in,
method,
self._bucket_name,
key,
response_headers=response_headers or None)
