Class: RestClient::Request

Inherits:
Object
  • Object
show all
Defined in:
lib/rest_client.rb,
lib/request_errors.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.



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# File 'lib/rest_client.rb', line 84

def initialize(args)
	@method = args[:method] or raise ArgumentError, "must pass :method"
	@url = args[:url] or raise ArgumentError, "must pass :url"
	@headers = args[:headers] || {}
	@payload = process_payload(args[:payload])
	@user = args[:user]
	@password = args[:password]
end

Instance Attribute Details

#headers ⇒ Object (readonly)

Returns the value of attribute headers.



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# File 'lib/rest_client.rb', line 78

def headers
  @headers
end

#method ⇒ Object (readonly)

Returns the value of attribute method.



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# File 'lib/rest_client.rb', line 78

def method
  @method
end

#password ⇒ Object (readonly)

Returns the value of attribute password.



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# File 'lib/rest_client.rb', line 78

def password
  @password
end

#payload ⇒ Object (readonly)

Returns the value of attribute payload.



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# File 'lib/rest_client.rb', line 78

def payload
  @payload
end

#url ⇒ Object (readonly)

Returns the value of attribute url.



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# File 'lib/rest_client.rb', line 78

def url
  @url
end

#user ⇒ Object (readonly)

Returns the value of attribute user.



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# File 'lib/rest_client.rb', line 78

def user
  @user
end

Class Method Details

.execute(args) ⇒ Object 



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# File 'lib/rest_client.rb', line 80

def self.execute(args)
	new(args).execute
end

Instance Method Details

#decode(content_encoding, body) ⇒ Object 



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# File 'lib/rest_client.rb', line 192

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

#default_headers ⇒ Object 



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# File 'lib/rest_client.rb', line 226

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

#display_log(msg) ⇒ Object 



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# File 'lib/rest_client.rb', line 214

def display_log(msg)
	return unless log_to = RestClient.log

	if log_to == 'stdout'
		STDOUT.puts msg
	elsif log_to == 'stderr'
		STDERR.puts msg
	else
		File.open(log_to, 'a') { |f| f.puts msg }
	end
end

#execute ⇒ Object 



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# File 'lib/rest_client.rb', line 93

def execute
	execute_inner
rescue Redirect => e
	@url = e.url
	execute
end

#execute_inner ⇒ Object 



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# File 'lib/rest_client.rb', line 100

def execute_inner
	uri = parse_url_with_auth(url)
	transmit uri, net_http_class(method).new(uri.request_uri, make_headers(headers)), payload
end

#make_headers(user_headers) ⇒ Object 



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# File 'lib/rest_client.rb', line 105

def make_headers(user_headers)
	final = {}
	merged = default_headers.merge(user_headers)
	merged.keys.each do |key|
		final[key.to_s.gsub(/_/, '-').capitalize] = merged[key]
	end
	final
end

#net_http_class(method) ⇒ Object 



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# File 'lib/rest_client.rb', line 114

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

#parse_url(url) ⇒ Object 



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# File 'lib/rest_client.rb', line 118

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

#parse_url_with_auth(url) ⇒ Object 



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# File 'lib/rest_client.rb', line 123

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 



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# File 'lib/rest_client.rb', line 130

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) ⇒ Object 



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# File 'lib/rest_client.rb', line 170

def process_result(res)
	if %w(200 201 202).include? res.code
		decode res['content-encoding'], res.body
	elsif %w(301 302 303).include? res.code
		url = res.header['Location']

		if url !~ /^http/
			uri = URI.parse(@url)
			uri.path = "/#{url}".squeeze('/')
			url = uri.to_s
		end

		raise Redirect, url
	elsif res.code == "401"
		raise Unauthorized
	elsif res.code == "404"
		raise ResourceNotFound
	else
		raise RequestFailed, res
	end
end

#request_log ⇒ Object 



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# File 'lib/rest_client.rb', line 202

def request_log
	out = []
	out << "RestClient.#{method} #{url.inspect}"
	out << (payload.size > 100 ? "(#{payload.size} byte payload)".inspect : payload.inspect) if payload
	out << headers.inspect.gsub(/^\{/, '').gsub(/\}$/, '') unless headers.empty?
	out.join(', ')
end

#response_log(res) ⇒ Object 



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# File 'lib/rest_client.rb', line 210

def response_log(res)
	"# => #{res.code} #{res.class.to_s.gsub(/^Net::HTTP/, '')} | #{(res['Content-type'] || '').gsub(/;.*$/, '')} #{res.body.size} bytes"
end

#setup_credentials(req) ⇒ Object 



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# File 'lib/rest_client.rb', line 166

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

#transmit(uri, req, payload) ⇒ Object 



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# File 'lib/rest_client.rb', line 147

def transmit(uri, req, payload)
	setup_credentials(req)

	net = Net::HTTP.new(uri.host, uri.port)
	net.use_ssl = uri.is_a?(URI::HTTPS)

	display_log request_log

	net.start do |http|
		res = http.request(req, payload || "")
		display_log response_log(res)
		process_result res
	end
rescue EOFError
	raise RestClient::ServerBrokeConnection
rescue Timeout::Error
	raise RestClient::RequestTimeout
end