Class: RestClient::Request

Inherits:
Object
  • Object
show all
Defined in:
lib/restclient/request.rb,
lib/restclient/exceptions.rb

Overview

backwards compatibility

Constant Summary collapse

Redirect = 
RestClient::Redirect
Unauthorized = 
RestClient::Unauthorized
RequestFailed = 
RestClient::RequestFailed

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ Request

Returns a new instance of Request.



33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
 
# File 'lib/restclient/request.rb', line 33

def initialize args
  @method = args[:method] or raise ArgumentError, "must pass :method"
  @url = args[:url] or raise ArgumentError, "must pass :url"
  @headers = args[:headers] || {}
  @cookies = @headers.delete(:cookies) || args[:cookies] || {}
  @payload = Payload.generate(args[:payload])
  @user = args[:user]
  @password = args[:password]
  @timeout = args[:timeout]
  @open_timeout = args[:open_timeout]
  @raw_response = args[:raw_response] || false
  @verify_ssl = args[:verify_ssl] || false
  @ssl_client_cert = args[:ssl_client_cert] || nil
  @ssl_client_key = args[:ssl_client_key] || nil
  @ssl_ca_file = args[:ssl_ca_file] || nil
  @tf = nil # If you are a raw request, this is your tempfile
  @processed_headers = make_headers headers
  @args = args
end

Instance Attribute Details

#args ⇒ Object (readonly)

Returns the value of attribute args.



24
25
26
 
# File 'lib/restclient/request.rb', line 24

def args
  @args
end

#cookies ⇒ Object (readonly)

Returns the value of attribute cookies.



24
25
26
 
# File 'lib/restclient/request.rb', line 24

def cookies
  @cookies
end

#headers ⇒ Object (readonly)

Returns the value of attribute headers.



24
25
26
 
# File 'lib/restclient/request.rb', line 24

def headers
  @headers
end

#method ⇒ Object (readonly)

Returns the value of attribute method.



24
25
26
 
# File 'lib/restclient/request.rb', line 24

def method
  @method
end

#open_timeout ⇒ Object (readonly)

Returns the value of attribute open_timeout.



24
25
26
 
# File 'lib/restclient/request.rb', line 24

def open_timeout
  @open_timeout
end

#password ⇒ Object (readonly)

Returns the value of attribute password.



24
25
26
 
# File 'lib/restclient/request.rb', line 24

def password
  @password
end

#payload ⇒ Object (readonly)

Returns the value of attribute payload.



24
25
26
 
# File 'lib/restclient/request.rb', line 24

def payload
  @payload
end

#processed_headers ⇒ Object (readonly)

Returns the value of attribute processed_headers.



24
25
26
 
# File 'lib/restclient/request.rb', line 24

def processed_headers
  @processed_headers
end

#raw_response ⇒ Object (readonly)

Returns the value of attribute raw_response.



24
25
26
 
# File 'lib/restclient/request.rb', line 24

def raw_response
  @raw_response
end

#ssl_ca_file ⇒ Object (readonly)

Returns the value of attribute ssl_ca_file.



24
25
26
 
# File 'lib/restclient/request.rb', line 24

def ssl_ca_file
  @ssl_ca_file
end

#ssl_client_cert ⇒ Object (readonly)

Returns the value of attribute ssl_client_cert.



24
25
26
 
# File 'lib/restclient/request.rb', line 24

def ssl_client_cert
  @ssl_client_cert
end

#ssl_client_key ⇒ Object (readonly)

Returns the value of attribute ssl_client_key.



24
25
26
 
# File 'lib/restclient/request.rb', line 24

def ssl_client_key
  @ssl_client_key
end

#timeout ⇒ Object (readonly)

Returns the value of attribute timeout.



24
25
26
 
# File 'lib/restclient/request.rb', line 24

def timeout
  @timeout
end

#url ⇒ Object (readonly)

Returns the value of attribute url.



24
25
26
 
# File 'lib/restclient/request.rb', line 24

def url
  @url
end

#user ⇒ Object (readonly)

Returns the value of attribute user.



24
25
26
 
# File 'lib/restclient/request.rb', line 24

def user
  @user
end

#verify_ssl ⇒ Object (readonly)

Returns the value of attribute verify_ssl.



24
25
26
 
# File 'lib/restclient/request.rb', line 24

def verify_ssl
  @verify_ssl
end

Class Method Details

.decode(content_encoding, body) ⇒ Object 



209
210
211
212
213
214
215
216
217
218
219
 
# File 'lib/restclient/request.rb', line 209

def self.decode content_encoding, body
  if (!body) || body.empty?
    body
  elsif content_encoding == 'gzip'
    Zlib::GzipReader.new(StringIO.new(body)).read
  elsif content_encoding == 'deflate'
    Zlib::Inflate.new.inflate body
  else
    body
  end
end

.execute(args, &block) ⇒ Object 



29
30
31
 
# File 'lib/restclient/request.rb', line 29

def self.execute(args, &block)
  new(args).execute &block
end

Instance Method Details

#default_headers ⇒ Object 



238
239
240
 
# File 'lib/restclient/request.rb', line 238

def default_headers
  { :accept => '*/*; q=0.5, application/xml', :accept_encoding => 'gzip, deflate' }
end

#execute(&block) ⇒ Object 



53
54
55
56
 
# File 'lib/restclient/request.rb', line 53

def execute &block
  uri = parse_url_with_auth(url)
  transmit uri, net_http_request_class(method).new(uri.request_uri, processed_headers), payload, &block
end

#fetch_body(http_response) ⇒ Object 



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
 
# File 'lib/restclient/request.rb', line 165

def fetch_body(http_response)
  if @raw_response
    # Taken from Chef, which as in turn...
    # Stolen from http://www.ruby-forum.com/topic/166423
    # Kudos to _why!
    @tf = Tempfile.new("rest-client")
    size, total = 0, http_response.header['Content-Length'].to_i
    http_response.read_body do |chunk|
      @tf.write chunk
      size += chunk.size
      if RestClient.log
        if size == 0
          RestClient.log << "#{@method} #{@url} done (0 length file\n)"
        elsif total == 0
          RestClient.log << "#{@method} #{@url} (zero content length)\n"
        else
          RestClient.log << "#{@method} #{@url} %d%% done (%d of %d)\n" % [(size * 100) / total, size, total]
        end
      end
    end
    @tf.close
    @tf
  else
    http_response.read_body
  end
  http_response
end

#log_request ⇒ Object 



221
222
223
224
225
226
227
228
229
 
# File 'lib/restclient/request.rb', line 221

def log_request
  if RestClient.log
    out = []
    out << "RestClient.#{method} #{url.inspect}"
    out << payload.short_inspect if payload
    out << processed_headers.inspect.gsub(/^\{/, '').gsub(/\}$/, '')
    RestClient.log << out.join(', ') + "\n"
  end
end

#log_response(res) ⇒ Object 



231
232
233
234
235
236
 
# File 'lib/restclient/request.rb', line 231

def log_response res
  if RestClient.log
    size = @raw_response ? File.size(@tf.path) : (res.body.nil? ? 0 : res.body.size)
    RestClient.log << "# => #{res.code} #{res.class.to_s.gsub(/^Net::HTTP/, '')} | #{(res['Content-type'] || '').gsub(/;.*$/, '')} #{size} bytes\n"
  end
end

#make_headers(user_headers) ⇒ Object 



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
 
# File 'lib/restclient/request.rb', line 58

def make_headers user_headers
  unless @cookies.empty?
    user_headers[:cookie] = @cookies.map {|(key, val)| "#{key.to_s}=#{val}" }.sort.join(",")
  end

  headers = default_headers.merge(user_headers).inject({}) do |final, (key, value)|
    target_key = key.to_s.gsub(/_/, '-').capitalize
    if 'CONTENT-TYPE' == target_key.upcase
      target_value = value.to_s
      final[target_key] = MIME::Types.type_for_extension target_value
    elsif 'ACCEPT' == target_key.upcase
      # Accept can be composed of several comma-separated values
      if value.is_a? Array
        target_values = value
      else
        target_values = value.to_s.split ','
      end
      final[target_key] = target_values.map{ |ext| MIME::Types.type_for_extension(ext.to_s.strip)}.join(', ')
    else
      final[target_key] = value.to_s
    end
    final
  end

  headers.merge!(@payload.headers) if @payload
  headers
end

#net_http_class ⇒ Object 



86
87
88
89
90
91
92
93
 
# File 'lib/restclient/request.rb', line 86

def net_http_class
  if RestClient.proxy
    proxy_uri = URI.parse(RestClient.proxy)
    Net::HTTP::Proxy(proxy_uri.host, proxy_uri.port, proxy_uri.user, proxy_uri.password)
  else
    Net::HTTP
  end
end

#net_http_request_class(method) ⇒ Object 



95
96
97
 
# File 'lib/restclient/request.rb', line 95

def net_http_request_class(method)
  Net::HTTP.const_get(method.to_s.capitalize)
end

#parse_url(url) ⇒ Object 



99
100
101
102
 
# File 'lib/restclient/request.rb', line 99

def parse_url(url)
  url = "http://#{url}" unless url.match(/^http/)
  URI.parse(url)
end

#parse_url_with_auth(url) ⇒ Object 



104
105
106
107
108
109
 
# File 'lib/restclient/request.rb', line 104

def parse_url_with_auth(url)
  uri = parse_url(url)
  @user = uri.user if uri.user
  @password = uri.password if uri.password
  uri
end

#process_payload(p = nil, parent_key = nil) ⇒ Object 



111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
 
# File 'lib/restclient/request.rb', line 111

def process_payload(p=nil, parent_key=nil)
  unless p.is_a?(Hash)
    p
  else
    @headers[:content_type] ||= 'application/x-www-form-urlencoded'
    p.keys.map do |k|
      key = parent_key ? "#{parent_key}[#{k}]" : k
      if p[k].is_a? Hash
        process_payload(p[k], key)
      else
        value = URI.escape(p[k].to_s, Regexp.new("[^#{URI::PATTERN::UNRESERVED}]"))
        "#{key}=#{value}"
      end
    end.join("&")
  end
end

#process_result(res, &block) ⇒ Object 



193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
 
# File 'lib/restclient/request.rb', line 193

def process_result res, &block
  if @raw_response
    # We don't decode raw requests
    response = RawResponse.new(@tf, res, args)
  else
    response = Response.new(Request.decode(res['content-encoding'], res.body), res, args)
  end

  if block_given?
    block.call response, &block
  else
    response.return! &block
  end

end

#setup_credentials(req) ⇒ Object 



161
162
163
 
# File 'lib/restclient/request.rb', line 161

def setup_credentials(req)
  req.basic_auth(user, password) if user
end

#transmit(uri, req, payload, &block) ⇒ Object 



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
 
# File 'lib/restclient/request.rb', line 128

def transmit uri, req, payload, &block
  setup_credentials req

  net = net_http_class.new(uri.host, uri.port)
  net.use_ssl = uri.is_a?(URI::HTTPS)
  if @verify_ssl == false
    net.verify_mode = OpenSSL::SSL::VERIFY_NONE
  elsif @verify_ssl.is_a? Integer
    net.verify_mode = @verify_ssl
  end
  net.cert = @ssl_client_cert if @ssl_client_cert
  net.key = @ssl_client_key if @ssl_client_key
  net.ca_file = @ssl_ca_file if @ssl_ca_file
  net.read_timeout = @timeout if @timeout
  net.open_timeout = @open_timeout if @open_timeout

  RestClient.before_execution_procs.each do |block|
    block.call(req, args)
  end

  log_request

  net.start do |http|
    res = http.request(req, payload) { |http_response| fetch_body(http_response) }
    log_response res
    process_result res, &block
  end
rescue EOFError
  raise RestClient::ServerBrokeConnection
rescue Timeout::Error
  raise RestClient::RequestTimeout
end