Class: HTTP::Request

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Includes:
Headers::Mixin
Defined in:
lib/http/request.rb,
lib/http/request/writer.rb,
lib/http/request/caching.rb

Direct Known Subclasses

Caching

Defined Under Namespace

Classes: Caching, UnsupportedMethodError, UnsupportedSchemeError, Writer

Constant Summary collapse

USER_AGENT =

Default User-Agent header value

"http.rb/#{HTTP::VERSION}".freeze
METHODS =

RFC 2616: Hypertext Transfer Protocol -- HTTP/1.1

[:options, :get, :head, :post, :put, :delete, :trace, :connect]
SCHEMES =

Allowed schemes

[:http, :https, :ws, :wss]
PORTS =

Default ports of supported schemes

{
  :http   => 80,
  :https  => 443,
  :ws     => 80,
  :wss    => 443
}

Instance Attribute Summary collapse

Attributes included from Headers::Mixin

#headers

Instance Method Summary collapse

Methods included from Headers::Mixin

#[], #[]=

Constructor Details

#initialize(verb, uri, headers = {}, proxy = {}, body = nil, version = "1.1") ⇒ Request

:nodoc:



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# File 'lib/http/request.rb', line 68

def initialize(verb, uri, headers = {}, proxy = {}, body = nil, version = "1.1") # rubocop:disable ParameterLists
  @verb   = verb.to_s.downcase.to_sym
  @uri    = HTTP::URI.parse(uri).normalize
  @scheme = @uri.scheme && @uri.scheme.to_s.downcase.to_sym

  fail(UnsupportedMethodError, "unknown method: #{verb}") unless METHODS.include?(@verb)
  fail(UnsupportedSchemeError, "unknown scheme: #{scheme}") unless SCHEMES.include?(@scheme)

  @proxy   = proxy
  @body    = body
  @version = version

  @headers = HTTP::Headers.coerce(headers || {})

  @headers["Host"]        ||= default_host_header_value
  @headers["User-Agent"]  ||= USER_AGENT
end

Instance Attribute Details

#body ⇒ Object (readonly)

Returns the value of attribute body.



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# File 'lib/http/request.rb', line 65

def body
  @body
end

#proxy ⇒ Object (readonly)

Returns the value of attribute proxy.



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# File 'lib/http/request.rb', line 65

def proxy
  @proxy
end

#scheme ⇒ Object (readonly)

Scheme is normalized to be a lowercase symbol e.g. :http, :https



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# File 'lib/http/request.rb', line 60

def scheme
  @scheme
end

#uri ⇒ Object (readonly)

"Request URI" as per RFC 2616 http://www.w3.org/Protocols/rfc2616/rfc2616-sec5.html



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# File 'lib/http/request.rb', line 64

def uri
  @uri
end

#verb ⇒ Object (readonly)

Method is given as a lowercase symbol e.g. :get, :post



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# File 'lib/http/request.rb', line 57

def verb
  @verb
end

#version ⇒ Object (readonly)

Returns the value of attribute version.



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# File 'lib/http/request.rb', line 65

def version
  @version
end

Instance Method Details

#caching ⇒ HTTP::Request::Caching

Returns:



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# File 'lib/http/request.rb', line 159

def caching
  Caching.new self
end

#connect_using_proxy(socket) ⇒ Object

Setup tunnel through proxy for SSL request



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# File 'lib/http/request.rb', line 120

def connect_using_proxy(socket)
  Request::Writer.new(socket, nil, proxy_connect_headers, proxy_connect_header).connect_through_proxy
end

#headline ⇒ Object Also known as: request_header

Compute HTTP request header for direct or proxy request



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# File 'lib/http/request.rb', line 125

def headline
  request_uri = using_proxy? ? uri : uri.omit(:scheme, :authority)
  "#{verb.to_s.upcase} #{request_uri} HTTP/#{version}"
end

#include_proxy_authorization_header ⇒ Object

Compute and add the Proxy-Authorization header



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# File 'lib/http/request.rb', line 110

def include_proxy_authorization_header
  headers["Proxy-Authorization"] = proxy_authorization_header
end

#proxy_authorization_header ⇒ Object 



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# File 'lib/http/request.rb', line 114

def proxy_authorization_header
  digest = Base64.strict_encode64("#{proxy[:proxy_username]}:#{proxy[:proxy_password]}")
  "Basic #{digest}"
end

#proxy_connect_header ⇒ Object

Compute HTTP request header SSL proxy connection



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# File 'lib/http/request.rb', line 134

def proxy_connect_header
  "CONNECT #{host}:#{port} HTTP/#{version}"
end

#proxy_connect_headers ⇒ Object

Headers to send with proxy connect request



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# File 'lib/http/request.rb', line 139

def proxy_connect_headers
  connect_headers = HTTP::Headers.coerce(
    "Host" => headers["Host"],
    "User-Agent" => headers["User-Agent"]
  )
  connect_headers["Proxy-Authorization"] = proxy_authorization_header if using_authenticated_proxy?
  connect_headers
end

#redirect(uri, verb = @verb) ⇒ Object

Returns new Request with updated uri



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# File 'lib/http/request.rb', line 87

def redirect(uri, verb = @verb)
  req = self.class.new(verb, @uri.join(uri), headers, proxy, body, version)
  req["Host"] = req.uri.host
  req
end

#socket_host ⇒ Object

Host for tcp socket



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# File 'lib/http/request.rb', line 149

def socket_host
  using_proxy? ? proxy[:proxy_address] : host
end

#socket_port ⇒ Object

Port for tcp socket



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# File 'lib/http/request.rb', line 154

def socket_port
  using_proxy? ? proxy[:proxy_port] : port
end

#stream(socket) ⇒ Object

Stream the request to a socket



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# File 'lib/http/request.rb', line 94

def stream(socket)
  include_proxy_authorization_header if using_authenticated_proxy? && !@uri.https?
  Request::Writer.new(socket, body, headers, headline).stream
end

#using_authenticated_proxy? ⇒ Boolean

Is this request using an authenticated proxy?

Returns:

  • (Boolean) 


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# File 'lib/http/request.rb', line 105

def using_authenticated_proxy?
  proxy && proxy.keys.size == 4
end

#using_proxy? ⇒ Boolean

Is this request using a proxy?

Returns:

  • (Boolean) 


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# File 'lib/http/request.rb', line 100

def using_proxy?
  proxy && proxy.keys.size >= 2
end