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
63
64
65
66
67
|
# frozen_string_literal: true
# Copyright, 2017, by Samuel G. D. Williams. <http://www.codeotaku.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
require_relative 'middleware'
require_relative 'body/buffered'
require_relative 'body/inflate'
module Protocol
module HTTP
# Set a valid accept-encoding header and decode the response.
class AcceptEncoding < Middleware
ACCEPT_ENCODING = 'accept-encoding'.freeze
CONTENT_ENCODING = 'content-encoding'.freeze
DEFAULT_WRAPPERS = {
'gzip' => Body::Inflate.method(:for),
'identity' => ->(body){body},
}
def initialize(app, wrappers = DEFAULT_WRAPPERS)
super(app)
@accept_encoding = wrappers.keys.join(', ')
@wrappers = wrappers
end
def call(request)
request.headers[ACCEPT_ENCODING] = @accept_encoding
response = super
if body = response.body and !body.empty? and content_encoding = response.headers.delete(CONTENT_ENCODING)
# We want to unwrap all encodings
content_encoding.reverse_each do |name|
if wrapper = @wrappers[name]
body = wrapper.call(body)
end
end
response.body = body
end
return response
end
end
end
end
|
