Class: Net::HTTPResponse

Relationships & Source Files
Extension / Inclusion / Inheritance Descendants
Subclasses: Net::HTTPAccepted, Net::HTTPBadGateway, Net::HTTPBadRequest, Net::HTTPClientError, Net::HTTPConflict, Net::HTTPContinue, Net::HTTPCreated, Net::HTTPExpectationFailed, Net::HTTPFailedDependency, Net::HTTPForbidden, Net::HTTPFound, Net::HTTPGatewayTimeOut, Net::HTTPGone, Net::HTTPIMUsed, Net::HTTPInformation, Net::HTTPInsufficientStorage, Net::HTTPInternalServerError, Net::HTTPLengthRequired, Net::HTTPLocked, Net::HTTPMethodNotAllowed, Net::HTTPMovedPermanently, Net::HTTPMultiStatus, Net::HTTPMultipleChoices, Net::HTTPNetworkAuthenticationRequired, Net::HTTPNoContent, Net::HTTPNonAuthoritativeInformation, Net::HTTPNotAcceptable, Net::HTTPNotFound, Net::HTTPNotImplemented, Net::HTTPNotModified, Net::HTTPOK, Net::HTTPPartialContent, Net::HTTPPaymentRequired, Net::HTTPPermanentRedirect, Net::HTTPPreconditionFailed, Net::HTTPPreconditionRequired, Net::HTTPProxyAuthenticationRequired, Net::HTTPRedirection, Net::HTTPRequestEntityTooLarge, Net::HTTPRequestHeaderFieldsTooLarge, Net::HTTPRequestTimeOut, Net::HTTPRequestURITooLong, Net::HTTPRequestedRangeNotSatisfiable, Net::HTTPResetContent, Net::HTTPSeeOther, Net::HTTPServerError, Net::HTTPServiceUnavailable, Net::HTTPSuccess, Net::HTTPSwitchProtocol, Net::HTTPTemporaryRedirect, Net::HTTPTooManyRequests, Net::HTTPUnauthorized, Net::HTTPUnknownResponse, Net::HTTPUnprocessableEntity, Net::HTTPUnsupportedMediaType, Net::HTTPUpgradeRequired, Net::HTTPUseProxy, Net::HTTPVersionNotSupported
Super Chains via Extension / Inclusion / Inheritance
Instance Chain: self, HTTPHeader
Inherits:	Object
Defined in:	lib/net/http/response.rb, lib/net/http/responses.rb

Overview

HTTP response class.

This class wraps together the response header and the response body (the entity requested).

It mixes in the HTTPHeader module, which provides access to response header values both via hash-like methods and via individual readers.

Note that each possible HTTP response code defines its own HTTPResponse subclass. These are listed below.

All classes are defined under the ::Net module. Indentation indicates inheritance. For a list of the classes see HTTP.

Class Attribute Summary

.body_permitted? ⇒ Boolean readonly

true if the response has a body.

Class Method Summary

.each_response_header(sock) {|key, value| ... } private
.read_status_line(sock) private
.response_class(code) private

Instance Attribute Summary

#body (also: #entity) rw

Returns the full entity body.
#body=(value) rw

Because it may be necessary to modify the body, Eg, decompression this method facilitates that.
#decode_content rw

Set to true automatically when the request did not contain an Accept-Encoding header from the user.
#uri rw

The URI used to fetch this response.
#code readonly

The HTTP result code string.
#http_version readonly

The HTTP version supported by the server.
#message (also: #msg) readonly

The HTTP result message sent by the server.

HTTPHeader - Included

#content_length	Returns an Integer object which represents the HTTP Content-Length: header field, or `nil` if that field was not provided.
#content_length=,
#chunked?	Returns “true” if the “transfer-encoding” header is present and set to “chunked”.
#connection_close?, #connection_keep_alive?

Instance Method Summary

#inspect
#read_body(dest = nil, &block)

Gets the entity body returned by the remote HTTP server.
#value

Raises an HTTP error if the response is not 2xx (success).
#procdest(dest, block) private
#read_body_0(dest) private
#stream_check private

HTTPHeader - Included

#[]	Returns the header field corresponding to the case-insensitive key.
#[]=	Sets the header field corresponding to the case-insensitive key.
#add_field	Ruby 1.8.3 Adds a value to a named header field, instead of replacing its value.
#basic_auth	Set the Authorization: header for “Basic” authorization.
#canonical_each	Alias for HTTPHeader#each_capitalized.
#content_range	Returns a Range object which represents the value of the Content-Range: header field.
#content_type	Returns a content type string such as “text/html”.
#content_type=	Alias for HTTPHeader#set_content_type.
#delete	Removes a header field, specified by case-insensitive key.
#each	Alias for HTTPHeader#each_header.
#each_capitalized	As for `#each_header`, except the keys are provided in capitalized form.
#each_capitalized_name	Iterates through the header names in the header, passing capitalized header names to the code block.
#each_header	Iterates through the header names and values, passing in the name and value to the code block supplied.
#each_key	Alias for HTTPHeader#each_name.
#each_name	Iterates through the header names in the header, passing each header name to the code block.
#each_value	Iterates through header values, passing each value to the code block.
#fetch	Returns the header field corresponding to the case-insensitive key.
#form_data=	Alias for HTTPHeader#set_form_data.
#get_fields	Ruby 1.8.3 Returns an array of header field strings corresponding to the case-insensitive `key`.
#initialize_http_header,
#key?	true if `key` header exists.
#main_type	Returns a content type string such as “text”.
#proxy_basic_auth	Set Proxy-Authorization: header for “Basic” authorization.
#range	Returns an Array of Range objects which represent the Range: HTTP header field, or `nil` if there is no such header.
#range=	Alias for HTTPHeader#set_range.
#range_length	The length of the range represented in Content-Range: header.
#set_content_type	Sets the content type in an HTTP header.
#set_form	Set a HTML form data set.
#set_form_data	Set header fields and a body from HTML form data.
#set_range	Sets the HTTP Range: header.
#sub_type	Returns a content type string such as “html”.
#to_hash	Returns a Hash consisting of header names and array of values.
#type_params	Any parameters specified for the content type, returned as a Hash.
#basic_encode, #capitalize, #tokens

Class Attribute Details

.body_permitted? ⇒ `Boolean` (readonly)

true if the response has a body.

[ GitHub ]

# File 'lib/net/http/response.rb', line 19


def body_permitted?
  self::HAS_BODY
end

Class Method Details

.each_response_header(sock) {|key, value| ... } (private)

Yields:

(key, value)

[ GitHub ]

# File 'lib/net/http/response.rb', line 51


def each_response_header(sock)
  key = value = nil
  while true
    line = sock.readuntil("\n", true).sub(/\s+\z/, '')
    break if line.empty?
    if line[0] == ?\s or line[0] == ?\t and value
      value << ' ' unless value.empty?
      value << line.strip
    else
      yield key, value if key
      key, value = line.strip.split(/\s*:\s*/, 2)
      raise Net::HTTPBadResponse, 'wrong header line format' if value.nil?
    end
  end
  yield key, value if key
end

.read_status_line(sock) (private)

[ GitHub ]

# File 'lib/net/http/response.rb', line 38


def read_status_line(sock)
  str = sock.readline
  m = /\AHTTP(?:\/(\d\.\d))?\s(\d\d\d)(?:\s(.*))?\z/in.match(str) or
    raise Net::HTTPBadResponse, "wrong status line: #{str.dump}"
  m.captures
end

.response_class(code) (private)

[ GitHub ]

# File 'lib/net/http/response.rb', line 45


def response_class(code)
  CODE_TO_OBJ[code] or
  CODE_CLASS_TO_OBJ[code[0,1]] or
  Net::HTTPUnknownResponse
end

Instance Attribute Details

#body (rw) Also known as: #entity

Returns the full entity body.

Calling this method a second or subsequent time will return the string already read.

http.request_get('/index.html') {|res|

puts res.body
}

http.request_get('/index.html') {|res|

p res.body.object_id   # 538149362
  p res.body.object_id   # 538149362
}

[ GitHub ]

# File 'lib/net/http/response.rb', line 225


def body
  read_body()
end

#body=(value) (rw)

Because it may be necessary to modify the body, Eg, decompression this method facilitates that.

[ GitHub ]

# File 'lib/net/http/response.rb', line 231


def body=(value)
  @body = value
end

#code (readonly)

The HTTP result code string. For example, '302'. You can also determine the response type by examining which response subclass the response object is an instance of.

[ GitHub ]

# File 'lib/net/http/response.rb', line 92


attr_reader :code

#decode_content (rw)

Set to true automatically when the request did not contain an Accept-Encoding header from the user.

[ GitHub ]

# File 'lib/net/http/response.rb', line 104


attr_accessor :decode_content

#http_version (readonly)

The HTTP version supported by the server.

[ GitHub ]

# File 'lib/net/http/response.rb', line 87


attr_reader :http_version

#message (readonly) Also known as: #msg

The HTTP result message sent by the server. For example, 'Not Found'.

[ GitHub ]

# File 'lib/net/http/response.rb', line 95


attr_reader :message

#uri (rw)

The URI used to fetch this response. The response URI is only available if a URI was used to create the request.

[ GitHub ]

# File 'lib/net/http/response.rb', line 100


attr_reader :uri

Instance Method Details

#inspect

[ GitHub ]

# File 'lib/net/http/response.rb', line 106


def inspect
  "#<#{self.class} #{@code} #{@message} readbody=#{@read}>"
end

#procdest(dest, block) (private)

Raises:

(ArgumentError)

[ GitHub ]

# File 'lib/net/http/response.rb', line 333


def procdest(dest, block)
  raise ArgumentError, 'both arg and block given for HTTP method' if
    dest and block
  if block
    Net::ReadAdapter.new(block)
  else
    dest || ''
  end
end

#read_body(dest = nil, &block)

Gets the entity body returned by the remote HTTP server.

If a block is given, the body is passed to the block, and the body is provided in fragments, as it is read in from the socket.

Calling this method a second or subsequent time for the same HTTPResponse object will return the value already read.

http.request_get('/index.html') {|res|

puts res.read_body
}

http.request_get('/index.html') {|res|

p res.read_body.object_id   # 538149362
  p res.read_body.object_id   # 538149362
}

# using iterator

http.request_get('/index.html') {|res|

res.read_body do |segment|
    print segment
  end
}

[ GitHub ]

# File 'lib/net/http/response.rb', line 193


def read_body(dest = nil, &block)
  if @read
    raise IOError, "#{self.class}\#read_body called twice" if dest or block
    return @body
  end
  to = procdest(dest, block)
  stream_check
  if @body_exist
    read_body_0 to
    @body = to
  else
    @body = nil
  end
  @read = true

  @body
end

#read_body_0(dest) (private)

[ GitHub ]

# File 'lib/net/http/response.rb', line 279


def read_body_0(dest)
  inflater do |inflate_body_io|
    if chunked?
      read_chunked dest, inflate_body_io
      return
    end

    @socket = inflate_body_io

    clen = content_length()
    if clen
      @socket.read clen, dest, true   # ignore EOF
      return
    end
    clen = range_length()
    if clen
      @socket.read clen, dest
      return
    end
    @socket.read_all dest
  end
end

#stream_check (private)

Raises:

(IOError)

[ GitHub ]

# File 'lib/net/http/response.rb', line 329


def stream_check
  raise IOError, 'attempt to read body out of block' if @socket.closed?
end

#value

Raises an HTTP error if the response is not 2xx (success).

[ GitHub ]

# File 'lib/net/http/response.rb', line 127


def value
  error! unless self.kind_of?(Net::HTTPSuccess)
end

Class: Net::HTTPResponse

Overview

Class Attribute Summary

Class Method Summary

Instance Attribute Summary

HTTPHeader - Included

Instance Method Summary

HTTPHeader - Included

Class Attribute Details

.body_permitted? ⇒ Boolean (readonly)

Class Method Details

.each_response_header(sock) {|key, value| ... } (private)

.read_status_line(sock) (private)

.response_class(code) (private)

Instance Attribute Details

#body (rw) Also known as: #entity

#body=(value) (rw)

#code (readonly)

#decode_content (rw)

#http_version (readonly)

#message (readonly) Also known as: #msg

#uri (rw)

Instance Method Details

#inspect

#procdest(dest, block) (private)

#read_body(dest = nil, &block)

#read_body_0(dest) (private)

#stream_check (private)

#value

.body_permitted? ⇒ `Boolean` (readonly)