1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
module Fog
module AWS
class Storage
class Real
# Get headers for an object from S3
#
# @param bucket_name [String] Name of bucket to read from
# @param object_name [String] Name of object to read
# @param options [Hash]:
# @option options [String] If-Match Returns object only if its etag matches this value, otherwise returns 412 (Precondition Failed).
# @option options [Time] If-Modified-Since Returns object only if it has been modified since this time, otherwise returns 304 (Not Modified).
# @option options [String] If-None-Match Returns object only if its etag differs from this value, otherwise returns 304 (Not Modified)
# @option options [Time] If-Unmodified-Since Returns object only if it has not been modified since this time, otherwise returns 412 (Precodition Failed).
# @option options [String] Range Range of object to download
# @option options [String] versionId specify a particular version to retrieve
#
# @return [Excon::Response] response:
# * body [String] Contents of object
# * headers [Hash]:
# * Content-Length [String] - Size of object contents
# * Content-Type [String] - MIME type of object
# * ETag [String] - Etag of object
# * Last-Modified - [String] Last modified timestamp for object
#
# @see http://docs.amazonwebservices.com/AmazonS3/latest/API/RESTObjectHEAD.html
#
def head_object(bucket_name, object_name, options={})
unless bucket_name
raise ArgumentError.new('bucket_name is required')
end
unless object_name
raise ArgumentError.new('object_name is required')
end
if version_id = options.delete('versionId')
query = {'versionId' => version_id}
end
headers = {}
headers['If-Modified-Since'] = Fog::Time.at(options['If-Modified-Since'].to_i).to_date_header if options['If-Modified-Since']
headers['If-Unmodified-Since'] = Fog::Time.at(options['If-Unmodified-Since'].to_i).to_date_header if options['If-Modified-Since']
headers.merge!(options)
request({
:expects => 200,
:headers => headers,
:bucket_name => bucket_name,
:object_name => object_name,
:idempotent => true,
:method => 'HEAD',
:query => query
})
end
end
class Mock # :nodoc:all
def head_object(bucket_name, object_name, options = {})
response = get_object(bucket_name, object_name, options)
response.body = nil
response
end
end
end
end
end
|
