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
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
# frozen_string_literal: true
module Excon
# Excon exception classes
class Error < StandardError
@default_status_error = :HTTPStatus
class StubNotFound < Error; end
class InvalidStub < Error; end
class Warning < Error; end
# Socket related errors
class Socket < Error
attr_reader :socket_error
def initialize(socket_error = Excon::Error.new)
if is_a?(Certificate) || is_a?(Excon::Errors::CertificateError)
super
else
super("#{socket_error.message} (#{socket_error.class})")
set_backtrace(socket_error.backtrace)
@socket_error = socket_error
end
end
end
# Certificate related errors
class Certificate < Socket
def initialize(socket_error = Excon::Error.new)
msg = <<-EOL
Unable to verify certificate. This may be an issue with the remote host or with Excon. Excon has certificates bundled, but these can be customized:
`Excon.defaults[:ssl_ca_path] = path_to_certs`
`ENV['SSL_CERT_DIR'] = path_to_certs`
`Excon.defaults[:ssl_ca_file] = path_to_file`
`ENV['SSL_CERT_FILE'] = path_to_file`
`Excon.defaults[:ssl_verify_callback] = callback`
(see OpenSSL::SSL::SSLContext#verify_callback)
or:
`Excon.defaults[:ssl_verify_peer] = false` (less secure).
EOL
full_message = "#{socket_error.message} (#{socket_error.class})" +
' ' + msg
super(full_message)
set_backtrace(socket_error.backtrace)
@socket_error = socket_error
end
end
class InvalidHeaderKey < Error; end
class InvalidHeaderValue < Error; end
class Timeout < Error; end
class ResponseParse < Error; end
class ProxyConnectionError < Error
attr_reader :request, :response
def initialize(msg, request = nil, response = nil)
super(msg)
@request = request
@response = response
end
end
class ProxyParse < Error; end
class TooManyRedirects < Error; end
# Base class for HTTP Error classes
class HTTPStatus < Error
attr_reader :request, :response
def initialize(msg, request = nil, response = nil)
super(msg)
@request = request
@response = response
end
end
# HTTP Error classes
class Informational < HTTPStatus; end
class Success < HTTPStatus; end
class Redirection < HTTPStatus; end
class Client < HTTPStatus; end
class Server < HTTPStatus; end
class Continue < Informational; end # 100
class SwitchingProtocols < Informational; end # 101
class OK < Success; end # 200
class Created < Success; end # 201
class Accepted < Success; end # 202
class NonAuthoritativeInformation < Success; end # 203
class NoContent < Success; end # 204
class ResetContent < Success; end # 205
class PartialContent < Success; end # 206
class MultipleChoices < Redirection; end # 300
class MovedPermanently < Redirection; end # 301
class Found < Redirection; end # 302
class SeeOther < Redirection; end # 303
class NotModified < Redirection; end # 304
class UseProxy < Redirection; end # 305
class TemporaryRedirect < Redirection; end # 307
class BadRequest < Client; end # 400
class Unauthorized < Client; end # 401
class PaymentRequired < Client; end # 402
class Forbidden < Client; end # 403
class NotFound < Client; end # 404
class MethodNotAllowed < Client; end # 405
class NotAcceptable < Client; end # 406
class ProxyAuthenticationRequired < Client; end # 407
class RequestTimeout < Client; end # 408
class Conflict < Client; end # 409
class Gone < Client; end # 410
class LengthRequired < Client; end # 411
class PreconditionFailed < Client; end # 412
class RequestEntityTooLarge < Client; end # 413
class RequestURITooLong < Client; end # 414
class UnsupportedMediaType < Client; end # 415
class RequestedRangeNotSatisfiable < Client; end # 416
class ExpectationFailed < Client; end # 417
class UnprocessableEntity < Client; end # 422
class TooManyRequests < Client; end # 429
class InternalServerError < Server; end # 500
class NotImplemented < Server; end # 501
class BadGateway < Server; end # 502
class ServiceUnavailable < Server; end # 503
class GatewayTimeout < Server; end # 504
def self.status_errors
@status_errors ||= {
100 => [Excon::Error::Continue, 'Continue'],
101 => [Excon::Error::SwitchingProtocols, 'Switching Protocols'],
200 => [Excon::Error::OK, 'OK'],
201 => [Excon::Error::Created, 'Created'],
202 => [Excon::Error::Accepted, 'Accepted'],
203 => [Excon::Error::NonAuthoritativeInformation, 'Non-Authoritative Information'],
204 => [Excon::Error::NoContent, 'No Content'],
205 => [Excon::Error::ResetContent, 'Reset Content'],
206 => [Excon::Error::PartialContent, 'Partial Content'],
300 => [Excon::Error::MultipleChoices, 'Multiple Choices'],
301 => [Excon::Error::MovedPermanently, 'Moved Permanently'],
302 => [Excon::Error::Found, 'Found'],
303 => [Excon::Error::SeeOther, 'See Other'],
304 => [Excon::Error::NotModified, 'Not Modified'],
305 => [Excon::Error::UseProxy, 'Use Proxy'],
307 => [Excon::Error::TemporaryRedirect, 'Temporary Redirect'],
400 => [Excon::Error::BadRequest, 'Bad Request'],
401 => [Excon::Error::Unauthorized, 'Unauthorized'],
402 => [Excon::Error::PaymentRequired, 'Payment Required'],
403 => [Excon::Error::Forbidden, 'Forbidden'],
404 => [Excon::Error::NotFound, 'Not Found'],
405 => [Excon::Error::MethodNotAllowed, 'Method Not Allowed'],
406 => [Excon::Error::NotAcceptable, 'Not Acceptable'],
407 => [Excon::Error::ProxyAuthenticationRequired, 'Proxy Authentication Required'],
408 => [Excon::Error::RequestTimeout, 'Request Timeout'],
409 => [Excon::Error::Conflict, 'Conflict'],
410 => [Excon::Error::Gone, 'Gone'],
411 => [Excon::Error::LengthRequired, 'Length Required'],
412 => [Excon::Error::PreconditionFailed, 'Precondition Failed'],
413 => [Excon::Error::RequestEntityTooLarge, 'Request Entity Too Large'],
414 => [Excon::Error::RequestURITooLong, 'Request-URI Too Long'],
415 => [Excon::Error::UnsupportedMediaType, 'Unsupported Media Type'],
416 => [Excon::Error::RequestedRangeNotSatisfiable, 'Request Range Not Satisfiable'],
417 => [Excon::Error::ExpectationFailed, 'Expectation Failed'],
422 => [Excon::Error::UnprocessableEntity, 'Unprocessable Entity'],
429 => [Excon::Error::TooManyRequests, 'Too Many Requests'],
500 => [Excon::Error::InternalServerError, 'InternalServerError'],
501 => [Excon::Error::NotImplemented, 'Not Implemented'],
502 => [Excon::Error::BadGateway, 'Bad Gateway'],
503 => [Excon::Error::ServiceUnavailable, 'Service Unavailable'],
504 => [Excon::Error::GatewayTimeout, 'Gateway Timeout']
}
end
# Messages for nicer exceptions, from rfc2616
def self.status_error(request, response)
error_class, error_message = status_errors[response[:status]]
if error_class.nil?
default_class = Excon::Error.const_get(@default_status_error)
error_class, error_message = [default_class, 'Unknown']
end
message = StringIO.new
str = "Expected(#{request[:expects].inspect}) <=>" +
" Actual(#{response[:status]} #{error_message})"
message.puts(str)
if request[:debug_request]
message.puts('excon.error.request')
Excon::PrettyPrinter.pp(message, request)
end
if request[:debug_response]
message.puts('excon.error.response')
Excon::PrettyPrinter.pp(message, response.data)
end
message.rewind
error_class.new(message.read, request, response)
end
end
# Legacy
module Errors
Excon::Errors::Error = Excon::Error
legacy_re = /
\A
Client
|Server
|Socket
|Certificate
|HTTPStatus
|InternalServer
\Z
/x
klasses = Excon::Error.constants.select do |c|
Excon::Error.const_get(c).is_a? Class
end
klasses.each do |klass|
class_name = klass.to_s
unless class_name.match?(/Error\Z/)
class_name = klass.to_s + 'Error' if class_name.match?(legacy_re)
end
Excon::Errors.const_set(class_name, Excon::Error.const_get(klass))
end
def self.status_error(request, response)
Excon::Error.status_error(request, response)
end
end
end
|
