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
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
|
require 'tempfile'
require 'stringio'
require 'strscan'
require 'active_support/core_ext/hash/indifferent_access'
require 'active_support/core_ext/string/access'
require 'active_support/inflector'
require 'action_dispatch/http/headers'
require 'action_controller/metal/exceptions'
module ActionDispatch
class Request < Rack::Request
include ActionDispatch::Http::Cache::Request
include ActionDispatch::Http::MimeNegotiation
include ActionDispatch::Http::Parameters
include ActionDispatch::Http::FilterParameters
include ActionDispatch::Http::Upload
include ActionDispatch::Http::URL
LOCALHOST = [/^127\.0\.0\.\d{1,3}$/, "::1", /^0:0:0:0:0:0:0:1(%.*)?$/].freeze
ENV_METHODS = %w[ AUTH_TYPE GATEWAY_INTERFACE
PATH_TRANSLATED REMOTE_HOST
REMOTE_IDENT REMOTE_USER REMOTE_ADDR
SERVER_NAME SERVER_PROTOCOL
HTTP_ACCEPT HTTP_ACCEPT_CHARSET HTTP_ACCEPT_ENCODING
HTTP_ACCEPT_LANGUAGE HTTP_CACHE_CONTROL HTTP_FROM
HTTP_NEGOTIATE HTTP_PRAGMA ].freeze
ENV_METHODS.each do |env|
class_eval <<-METHOD, __FILE__, __LINE__ + 1
def #{env.sub(/^HTTP_/n, '').downcase} # def accept_charset
@env["#{env}"] # @env["HTTP_ACCEPT_CHARSET"]
end # end
METHOD
end
def self.new(env)
if request = env["action_dispatch.request"] && request.instance_of?(self)
return request
end
super
end
def key?(key)
@env.key?(key)
end
# List of HTTP request methods from the following RFCs:
# Hypertext Transfer Protocol -- HTTP/1.1 (http://www.ietf.org/rfc/rfc2616.txt)
# HTTP Extensions for Distributed Authoring -- WEBDAV (http://www.ietf.org/rfc/rfc2518.txt)
# Versioning Extensions to WebDAV (http://www.ietf.org/rfc/rfc3253.txt)
# Ordered Collections Protocol (WebDAV) (http://www.ietf.org/rfc/rfc3648.txt)
# Web Distributed Authoring and Versioning (WebDAV) Access Control Protocol (http://www.ietf.org/rfc/rfc3744.txt)
# Web Distributed Authoring and Versioning (WebDAV) SEARCH (http://www.ietf.org/rfc/rfc5323.txt)
# PATCH Method for HTTP (http://www.ietf.org/rfc/rfc5789.txt)
RFC2616 = %w(OPTIONS GET HEAD POST PUT DELETE TRACE CONNECT)
RFC2518 = %w(PROPFIND PROPPATCH MKCOL COPY MOVE LOCK UNLOCK)
RFC3253 = %w(VERSION-CONTROL REPORT CHECKOUT CHECKIN UNCHECKOUT MKWORKSPACE UPDATE LABEL MERGE BASELINE-CONTROL MKACTIVITY)
RFC3648 = %w(ORDERPATCH)
RFC3744 = %w(ACL)
RFC5323 = %w(SEARCH)
RFC5789 = %w(PATCH)
HTTP_METHODS = RFC2616 + RFC2518 + RFC3253 + RFC3648 + RFC3744 + RFC5323 + RFC5789
HTTP_METHOD_LOOKUP = Hash.new { |h, m| h[m] = m.underscore.to_sym if HTTP_METHODS.include?(m) }
# Returns the HTTP \method that the application should see.
# In the case where the \method was overridden by a middleware
# (for instance, if a HEAD request was converted to a GET,
# or if a _method parameter was used to determine the \method
# the application should use), this \method returns the overridden
# value, not the original.
def request_method
@request_method ||= check_method(env["REQUEST_METHOD"])
end
# Returns a symbol form of the #request_method
def request_method_symbol
HTTP_METHOD_LOOKUP[request_method]
end
# Returns the original value of the environment's REQUEST_METHOD,
# even if it was overridden by middleware. See #request_method for
# more information.
def method
@method ||= check_method(env["rack.methodoverride.original_method"] || env['REQUEST_METHOD'])
end
# Returns a symbol form of the #method
def method_symbol
HTTP_METHOD_LOOKUP[method]
end
# Is this a GET (or HEAD) request?
# Equivalent to <tt>request.request_method == :get</tt>.
def get?
HTTP_METHOD_LOOKUP[request_method] == :get
end
# Is this a POST request?
# Equivalent to <tt>request.request_method == :post</tt>.
def post?
HTTP_METHOD_LOOKUP[request_method] == :post
end
# Is this a PUT request?
# Equivalent to <tt>request.request_method == :put</tt>.
def put?
HTTP_METHOD_LOOKUP[request_method] == :put
end
# Is this a DELETE request?
# Equivalent to <tt>request.request_method == :delete</tt>.
def delete?
HTTP_METHOD_LOOKUP[request_method] == :delete
end
# Is this a HEAD request?
# Equivalent to <tt>request.method == :head</tt>.
def head?
HTTP_METHOD_LOOKUP[method] == :head
end
# Provides access to the request's HTTP headers, for example:
#
# request.headers["Content-Type"] # => "text/plain"
def headers
Http::Headers.new(@env)
end
def fullpath
@fullpath ||= super
end
def media_type
content_mime_type.to_s
end
# Returns the content length of the request as an integer.
def content_length
super.to_i
end
# Returns true if the "X-Requested-With" header contains "XMLHttpRequest"
# (case-insensitive). All major JavaScript libraries send this header with
# every Ajax request.
def xml_http_request?
@env['HTTP_X_REQUESTED_WITH'] =~ /XMLHttpRequest/i
end
alias :xhr? :xml_http_request?
def ip
@ip ||= super
end
# Which IP addresses are "trusted proxies" that can be stripped from
# the right-hand-side of X-Forwarded-For.
#
# http://en.wikipedia.org/wiki/Private_network#Private_IPv4_address_spaces.
TRUSTED_PROXIES = %r{
^127\.0\.0\.1$ | # localhost
^(10 | # private IP 10.x.x.x
172\.(1[6-9]|2[0-9]|3[0-1]) | # private IP in the range 172.16.0.0 .. 172.31.255.255
192\.168 # private IP 192.168.x.x
)\.
}x
# Determines originating IP address. REMOTE_ADDR is the standard
# but will fail if the user is behind a proxy. HTTP_CLIENT_IP and/or
# HTTP_X_FORWARDED_FOR are set by proxies so check for these if
# REMOTE_ADDR is a proxy. HTTP_X_FORWARDED_FOR may be a comma-
# delimited list in the case of multiple chained proxies; the last
# address which is not trusted is the originating IP.
def remote_ip
@remote_ip ||= (@env["action_dispatch.remote_ip"] || ip).to_s
end
# Returns the lowercase name of the HTTP server software.
def server_software
(@env['SERVER_SOFTWARE'] && /^([a-zA-Z]+)/ =~ @env['SERVER_SOFTWARE']) ? $1.downcase : nil
end
# Read the request \body. This is useful for web services that need to
# work with raw requests directly.
def raw_post
unless @env.include? 'RAW_POST_DATA'
@env['RAW_POST_DATA'] = body.read(@env['CONTENT_LENGTH'].to_i)
body.rewind if body.respond_to?(:rewind)
end
@env['RAW_POST_DATA']
end
# The request body is an IO input stream. If the RAW_POST_DATA environment
# variable is already set, wrap it in a StringIO.
def body
if raw_post = @env['RAW_POST_DATA']
raw_post.force_encoding(Encoding::BINARY) if raw_post.respond_to?(:force_encoding)
StringIO.new(raw_post)
else
@env['rack.input']
end
end
def form_data?
FORM_DATA_MEDIA_TYPES.include?(content_mime_type.to_s)
end
def body_stream #:nodoc:
@env['rack.input']
end
# TODO This should be broken apart into AD::Request::Session and probably
# be included by the session middleware.
def reset_session
session.destroy if session && session.respond_to?(:destroy)
self.session = {}
@env['action_dispatch.request.flash_hash'] = nil
end
def session=(session) #:nodoc:
@env['rack.session'] = session
end
def session_options=(options)
@env['rack.session.options'] = options
end
# Override Rack's GET method to support indifferent access
def GET
@env["action_dispatch.request.query_parameters"] ||= (normalize_parameters(super) || {})
end
alias :query_parameters :GET
# Override Rack's POST method to support indifferent access
def POST
@env["action_dispatch.request.request_parameters"] ||= (normalize_parameters(super) || {})
end
alias :request_parameters :POST
# Returns the authorization header regardless of whether it was specified directly or through one of the
# proxy alternatives.
def authorization
@env['HTTP_AUTHORIZATION'] ||
@env['X-HTTP_AUTHORIZATION'] ||
@env['X_HTTP_AUTHORIZATION'] ||
@env['REDIRECT_X_HTTP_AUTHORIZATION']
end
# True if the request came from localhost, 127.0.0.1.
def local?
LOCALHOST.any? { |local_ip| local_ip === remote_addr && local_ip === remote_ip }
end
private
def check_method(name)
HTTP_METHOD_LOOKUP[name] || raise(ActionController::UnknownHttpMethod, "#{name}, accepted HTTP methods are #{HTTP_METHODS.to_sentence(:locale => :en)}")
name
end
end
end
|