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
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
# frozen_string_literal: true
require 'cgi'
module Aws
module Xml
class ErrorHandler < Seahorse::Client::Handler
def call(context)
@handler.call(context).on(300..599) do |response|
response.error = error(context) unless response.error
response.data = nil
end
end
private
def error(context)
body = context.http_response.body_contents
if body.empty?
code = http_status_error_code(context)
message = ''
data = EmptyStructure.new
else
code, message, data = extract_error(body, context)
end
context[:request_id] = request_id(body)
errors_module = context.client.class.errors_module
error_class = errors_module.error_class(code).new(context, message, data)
error_class
end
def extract_error(body, context)
code = error_code(body, context)
[
code,
error_message(body),
error_data(context, code)
]
end
def error_data(context, code)
data = EmptyStructure.new
if error_rules = context.operation.errors
error_rules.each do |rule|
# for modeled shape with error trait
# match `code` in the error trait before
# match modeled shape name
error_shape_code = rule.shape['error']['code'] if rule.shape['error']
match = (code == error_shape_code || code == rule.shape.name)
if match && rule.shape.members.any?
data = Parser.new(rule).parse(context.http_response.body_contents)
end
end
end
data
rescue Xml::Parser::ParsingError
EmptyStructure.new
end
def error_code(body, context)
if matches = body.match(/<Code>(.+?)<\/Code>/)
remove_prefix(unescape(matches[1]), context)
else
http_status_error_code(context)
end
end
def http_status_error_code(context)
status_code = context.http_response.status_code
{
302 => 'MovedTemporarily',
304 => 'NotModified',
400 => 'BadRequest',
403 => 'Forbidden',
404 => 'NotFound',
412 => 'PreconditionFailed',
413 => 'RequestEntityTooLarge',
}[status_code] || "Http#{status_code}Error"
end
def remove_prefix(error_code, context)
if prefix = context.config.api.metadata['errorPrefix']
error_code.sub(/^#{prefix}/, '')
else
error_code
end
end
def error_message(body)
if matches = body.match(/<Message>(.+?)<\/Message>/m)
unescape(matches[1])
else
''
end
end
def request_id(body)
if matches = body.match(/<RequestId>(.+?)<\/RequestId>/m)
matches[1]
end
end
def unescape(str)
CGI.unescapeHTML(str)
end
end
end
end
|
