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# # = net/http.rb # # Copyright (c) 1999-2007 Yukihiro Matsumoto # Copyright (c) 1999-2007 Minero Aoki # Copyright (c) 2001 GOTOU Yuuzou # # Written and maintained by Minero Aoki <aamine@loveruby.net>. # HTTPS support added by GOTOU Yuuzou <gotoyuzo@notwork.org>. # # This file is derived from "http-access.rb". # # Documented by Minero Aoki; converted to RDoc by William Webber. # # This program is free software. You can re-distribute and/or # modify this program under the same terms of ruby itself --- # Ruby Distribution License or GNU General Public License. # # See Net::HTTP for an overview and examples. # require 'net/protocol' require 'uri' module Net #:nodoc: autoload :OpenSSL, 'openssl' # :stopdoc: class HTTPBadResponse < StandardError; end class HTTPHeaderSyntaxError < StandardError; end # :startdoc: # == An HTTP client API for Ruby. # # Net::HTTP provides a rich library which can be used to build HTTP # user-agents. For more details about HTTP see # [RFC2616](http://www.ietf.org/rfc/rfc2616.txt) # # Net::HTTP is designed to work closely with URI. URI::HTTP#host, # URI::HTTP#port and URI::HTTP#request_uri are designed to work with # Net::HTTP. # # If you are only performing a few GET requests you should try OpenURI. # # == Simple Examples # # All examples assume you have loaded Net::HTTP with: # # require 'net/http' # # This will also require 'uri' so you don't need to require it separately. # # The Net::HTTP methods in the following section do not persist # connections. They are not recommended if you are performing many HTTP # requests. # # === GET # # Net::HTTP.get('example.com', '/index.html') # => String # # === GET by URI # # uri = URI('http://example.com/index.html?count=10') # Net::HTTP.get(uri) # => String # # === GET with Dynamic Parameters # # uri = URI('http://example.com/index.html') # params = { :limit => 10, :page => 3 } # uri.query = URI.encode_www_form(params) # # res = Net::HTTP.get_response(uri) # puts res.body if res.is_a?(Net::HTTPSuccess) # # === POST # # uri = URI('http://www.example.com/search.cgi') # res = Net::HTTP.post_form(uri, 'q' => 'ruby', 'max' => '50') # puts res.body # # === POST with Multiple Values # # uri = URI('http://www.example.com/search.cgi') # res = Net::HTTP.post_form(uri, 'q' => ['ruby', 'perl'], 'max' => '50') # puts res.body # # == How to use Net::HTTP # # The following example code can be used as the basis of a HTTP user-agent # which can perform a variety of request types using persistent # connections. # # uri = URI('http://example.com/some_path?query=string') # # Net::HTTP.start(uri.host, uri.port) do |http| # request = Net::HTTP::Get.new uri # # response = http.request request # Net::HTTPResponse object # end # # Net::HTTP::start immediately creates a connection to an HTTP server which # is kept open for the duration of the block. The connection will remain # open for multiple requests in the block if the server indicates it # supports persistent connections. # # The request types Net::HTTP supports are listed below in the section "HTTP # Request Classes". # # If you wish to re-use a connection across multiple HTTP requests without # automatically closing it you can use ::new instead of ::start. #request # will automatically open a connection to the server if one is not currently # open. You can manually close the connection with #finish. # # For all the Net::HTTP request objects and shortcut request methods you may # supply either a String for the request path or a URI from which Net::HTTP # will extract the request path. # # === Response Data # # uri = URI('http://example.com/index.html') # res = Net::HTTP.get_response(uri) # # # Headers # res['Set-Cookie'] # => String # res.get_fields('set-cookie') # => Array # res.to_hash['set-cookie'] # => Array # puts "Headers: #{res.to_hash.inspect}" # # # Status # puts res.code # => '200' # puts res.message # => 'OK' # puts res.class.name # => 'HTTPOK' # # # Body # puts res.body if res.response_body_permitted? # # === Following Redirection # # Each Net::HTTPResponse object belongs to a class for its response code. # # For example, all 2XX responses are instances of a Net::HTTPSuccess # subclass, a 3XX response is an instance of a Net::HTTPRedirection # subclass and a 200 response is an instance of the Net::HTTPOK class. For # details of response classes, see the section "HTTP Response Classes" # below. # # Using a case statement you can handle various types of responses properly: # # def fetch(uri_str, limit = 10) # # You should choose a better exception. # raise ArgumentError, 'too many HTTP redirects' if limit == 0 # # response = Net::HTTP.get_response(URI(uri_str)) # # case response # when Net::HTTPSuccess then # response # when Net::HTTPRedirection then # location = response['location'] # warn "redirected to #{location}" # fetch(location, limit - 1) # else # response.value # end # end # # print fetch('http://www.ruby-lang.org') # # === POST # # A POST can be made using the Net::HTTP::Post request class. This example # creates a urlencoded POST body: # # uri = URI('http://www.example.com/todo.cgi') # req = Net::HTTP::Post.new(uri) # req.set_form_data('from' => '2005-01-01', 'to' => '2005-03-31') # # res = Net::HTTP.start(uri.hostname, uri.port) do |http| # http.request(req) # end # # case res # when Net::HTTPSuccess, Net::HTTPRedirection # # OK # else # res.value # end # # At this time Net::HTTP does not support multipart/form-data. To send # multipart/form-data use Net::HTTPRequest#body= and # Net::HTTPRequest#content_type=: # # req = Net::HTTP::Post.new(uri) # req.body = multipart_data # req.content_type = 'multipart/form-data' # # Other requests that can contain a body such as PUT can be created in the # same way using the corresponding request class (Net::HTTP::Put). # # === Setting Headers # # The following example performs a conditional GET using the # If-Modified-Since header. If the files has not been modified since the # time in the header a Not Modified response will be returned. See RFC 2616 # section 9.3 for further details. # # uri = URI('http://example.com/cached_response') # file = File.stat 'cached_response' # # req = Net::HTTP::Get.new(uri) # req['If-Modified-Since'] = file.mtime.rfc2822 # # res = Net::HTTP.start(uri.hostname, uri.port) {|http| # http.request(req) # } # # open 'cached_response', 'w' do |io| # io.write res.body # end if res.is_a?(Net::HTTPSuccess) # # === Basic Authentication # # Basic authentication is performed according to # [RFC2617](http://www.ietf.org/rfc/rfc2617.txt) # # uri = URI('http://example.com/index.html?key=value') # # req = Net::HTTP::Get.new(uri) # req.basic_auth 'user', 'pass' # # res = Net::HTTP.start(uri.hostname, uri.port) {|http| # http.request(req) # } # puts res.body # # === Streaming Response Bodies # # By default Net::HTTP reads an entire response into memory. If you are # handling large files or wish to implement a progress bar you can instead # stream the body directly to an IO. # # uri = URI('http://example.com/large_file') # # Net::HTTP.start(uri.host, uri.port) do |http| # request = Net::HTTP::Get.new uri # # http.request request do |response| # open 'large_file', 'w' do |io| # response.read_body do |chunk| # io.write chunk # end # end # end # end # # === HTTPS # # HTTPS is enabled for an HTTP connection by Net::HTTP#use_ssl=. # # uri = URI('https://secure.example.com/some_path?query=string') # # Net::HTTP.start(uri.host, uri.port, # :use_ssl => uri.scheme == 'https') do |http| # request = Net::HTTP::Get.new uri # # response = http.request request # Net::HTTPResponse object # end # # In previous versions of Ruby you would need to require 'net/https' to use # HTTPS. This is no longer true. # # === Proxies # # Net::HTTP will automatically create a proxy from the +http_proxy+ # environment variable if it is present. To disable use of +http_proxy+, # pass +nil+ for the proxy address. # # You may also create a custom proxy: # # proxy_addr = 'your.proxy.host' # proxy_port = 8080 # # Net::HTTP.new('example.com', nil, proxy_addr, proxy_port).start { |http| # # always proxy via your.proxy.addr:8080 # } # # See Net::HTTP.new for further details and examples such as proxies that # require a username and password. # # === Compression # # Net::HTTP automatically adds Accept-Encoding for compression of response # bodies and automatically decompresses gzip and deflate responses unless a # Range header was sent. # # Compression can be disabled through the Accept-Encoding: identity header. # # == HTTP Request Classes # # Here is the HTTP request class hierarchy. # # * Net::HTTPRequest # * Net::HTTP::Get # * Net::HTTP::Head # * Net::HTTP::Post # * Net::HTTP::Patch # * Net::HTTP::Put # * Net::HTTP::Proppatch # * Net::HTTP::Lock # * Net::HTTP::Unlock # * Net::HTTP::Options # * Net::HTTP::Propfind # * Net::HTTP::Delete # * Net::HTTP::Move # * Net::HTTP::Copy # * Net::HTTP::Mkcol # * Net::HTTP::Trace # # == HTTP Response Classes # # Here is HTTP response class hierarchy. All classes are defined in Net # module and are subclasses of Net::HTTPResponse. # # HTTPUnknownResponse:: For unhandled HTTP extensions # HTTPInformation:: 1xx # HTTPContinue:: 100 # HTTPSwitchProtocol:: 101 # HTTPSuccess:: 2xx # HTTPOK:: 200 # HTTPCreated:: 201 # HTTPAccepted:: 202 # HTTPNonAuthoritativeInformation:: 203 # HTTPNoContent:: 204 # HTTPResetContent:: 205 # HTTPPartialContent:: 206 # HTTPMultiStatus:: 207 # HTTPIMUsed:: 226 # HTTPRedirection:: 3xx # HTTPMultipleChoices:: 300 # HTTPMovedPermanently:: 301 # HTTPFound:: 302 # HTTPSeeOther:: 303 # HTTPNotModified:: 304 # HTTPUseProxy:: 305 # HTTPTemporaryRedirect:: 307 # HTTPClientError:: 4xx # HTTPBadRequest:: 400 # HTTPUnauthorized:: 401 # HTTPPaymentRequired:: 402 # HTTPForbidden:: 403 # HTTPNotFound:: 404 # HTTPMethodNotAllowed:: 405 # HTTPNotAcceptable:: 406 # HTTPProxyAuthenticationRequired:: 407 # HTTPRequestTimeOut:: 408 # HTTPConflict:: 409 # HTTPGone:: 410 # HTTPLengthRequired:: 411 # HTTPPreconditionFailed:: 412 # HTTPRequestEntityTooLarge:: 413 # HTTPRequestURITooLong:: 414 # HTTPUnsupportedMediaType:: 415 # HTTPRequestedRangeNotSatisfiable:: 416 # HTTPExpectationFailed:: 417 # HTTPUnprocessableEntity:: 422 # HTTPLocked:: 423 # HTTPFailedDependency:: 424 # HTTPUpgradeRequired:: 426 # HTTPPreconditionRequired:: 428 # HTTPTooManyRequests:: 429 # HTTPRequestHeaderFieldsTooLarge:: 431 # HTTPServerError:: 5xx # HTTPInternalServerError:: 500 # HTTPNotImplemented:: 501 # HTTPBadGateway:: 502 # HTTPServiceUnavailable:: 503 # HTTPGatewayTimeOut:: 504 # HTTPVersionNotSupported:: 505 # HTTPInsufficientStorage:: 507 # HTTPNetworkAuthenticationRequired:: 511 # # There is also the Net::HTTPBadResponse exception which is raised when # there is a protocol error. # class HTTP < Protocol # :stopdoc: Revision = %q$Revision: 52799 $.split[1] HTTPVersion = '1.1' begin require 'zlib' require 'stringio' #for our purposes (unpacking gzip) lump these together HAVE_ZLIB=true rescue LoadError HAVE_ZLIB=false end # :startdoc: # Turns on net/http 1.2 (Ruby 1.8) features. # Defaults to ON in Ruby 1.8 or later. def HTTP.version_1_2 true end # Returns true if net/http is in version 1.2 mode. # Defaults to true. def HTTP.version_1_2? true end def HTTP.version_1_1? #:nodoc: false end class << HTTP alias is_version_1_1? version_1_1? #:nodoc: alias is_version_1_2? version_1_2? #:nodoc: end # # short cut methods # # # Gets the body text from the target and outputs it to $stdout. The # target can either be specified as # (+uri+), or as (+host+, +path+, +port+ = 80); so: # # Net::HTTP.get_print URI('http://www.example.com/index.html') # # or: # # Net::HTTP.get_print 'www.example.com', '/index.html' # def HTTP.get_print(uri_or_host, path = nil, port = nil) get_response(uri_or_host, path, port) {|res| res.read_body do |chunk| $stdout.print chunk end } nil end # Sends a GET request to the target and returns the HTTP response # as a string. The target can either be specified as # (+uri+), or as (+host+, +path+, +port+ = 80); so: # # print Net::HTTP.get(URI('http://www.example.com/index.html')) # # or: # # print Net::HTTP.get('www.example.com', '/index.html') # def HTTP.get(uri_or_host, path = nil, port = nil) get_response(uri_or_host, path, port).body end # Sends a GET request to the target and returns the HTTP response # as a Net::HTTPResponse object. The target can either be specified as # (+uri+), or as (+host+, +path+, +port+ = 80); so: # # res = Net::HTTP.get_response(URI('http://www.example.com/index.html')) # print res.body # # or: # # res = Net::HTTP.get_response('www.example.com', '/index.html') # print res.body # def HTTP.get_response(uri_or_host, path = nil, port = nil, &block) if path host = uri_or_host new(host, port || HTTP.default_port).start {|http| return http.request_get(path, &block) } else uri = uri_or_host start(uri.hostname, uri.port, :use_ssl => uri.scheme == 'https') {|http| return http.request_get(uri, &block) } end end # Posts HTML form data to the specified URI object. # The form data must be provided as a Hash mapping from String to String. # Example: # # { "cmd" => "search", "q" => "ruby", "max" => "50" } # # This method also does Basic Authentication iff +url+.user exists. # But userinfo for authentication is deprecated (RFC3986). # So this feature will be removed. # # Example: # # require 'net/http' # require 'uri' # # Net::HTTP.post_form URI('http://www.example.com/search.cgi'), # { "q" => "ruby", "max" => "50" } # def HTTP.post_form(url, params) req = Post.new(url) req.form_data = params req.basic_auth url.user, url.password if url.user start(url.hostname, url.port, :use_ssl => url.scheme == 'https' ) {|http| http.request(req) } end # # HTTP session management # # The default port to use for HTTP requests; defaults to 80. def HTTP.default_port http_default_port() end # The default port to use for HTTP requests; defaults to 80. def HTTP.http_default_port 80 end # The default port to use for HTTPS requests; defaults to 443. def HTTP.https_default_port 443 end def HTTP.socket_type #:nodoc: obsolete BufferedIO end # :call-seq: # HTTP.start(address, port, p_addr, p_port, p_user, p_pass, &block) # HTTP.start(address, port=nil, p_addr=nil, p_port=nil, p_user=nil, p_pass=nil, opt, &block) # # Creates a new Net::HTTP object, then additionally opens the TCP # connection and HTTP session. # # Arguments are the following: # _address_ :: hostname or IP address of the server # _port_ :: port of the server # _p_addr_ :: address of proxy # _p_port_ :: port of proxy # _p_user_ :: user of proxy # _p_pass_ :: pass of proxy # _opt_ :: optional hash # # _opt_ sets following values by its accessor. # The keys are ca_file, ca_path, cert, cert_store, ciphers, # close_on_empty_response, key, open_timeout, read_timeout, ssl_timeout, # ssl_version, use_ssl, verify_callback, verify_depth and verify_mode. # If you set :use_ssl as true, you can use https and default value of # verify_mode is set as OpenSSL::SSL::VERIFY_PEER. # # If the optional block is given, the newly # created Net::HTTP object is passed to it and closed when the # block finishes. In this case, the return value of this method # is the return value of the block. If no block is given, the # return value of this method is the newly created Net::HTTP object # itself, and the caller is responsible for closing it upon completion # using the finish() method. def HTTP.start(address, *arg, &block) # :yield: +http+ arg.pop if opt = Hash.try_convert(arg[-1]) port, p_addr, p_port, p_user, p_pass = *arg port = https_default_port if !port && opt && opt[:use_ssl] http = new(address, port, p_addr, p_port, p_user, p_pass) if opt if opt[:use_ssl] opt = {verify_mode: OpenSSL::SSL::VERIFY_PEER}.update(opt) end http.methods.grep(/\A(\w+)=\z/) do |meth| key = $1.to_sym opt.key?(key) or next http.__send__(meth, opt[key]) end end http.start(&block) end class << HTTP alias newobj new # :nodoc: end # Creates a new Net::HTTP object without opening a TCP connection or # HTTP session. # # The +address+ should be a DNS hostname or IP address, the +port+ is the # port the server operates on. If no +port+ is given the default port for # HTTP or HTTPS is used. # # If none of the +p_+ arguments are given, the proxy host and port are # taken from the +http_proxy+ environment variable (or its uppercase # equivalent) if present. If the proxy requires authentication you must # supply it by hand. See URI::Generic#find_proxy for details of proxy # detection from the environment. To disable proxy detection set +p_addr+ # to nil. # # If you are connecting to a custom proxy, +p_addr+ the DNS name or IP # address of the proxy host, +p_port+ the port to use to access the proxy, # and +p_user+ and +p_pass+ the username and password if authorization is # required to use the proxy. # def HTTP.new(address, port = nil, p_addr = :ENV, p_port = nil, p_user = nil, p_pass = nil) http = super address, port if proxy_class? then # from Net::HTTP::Proxy() http.proxy_from_env = @proxy_from_env http.proxy_address = @proxy_address http.proxy_port = @proxy_port http.proxy_user = @proxy_user http.proxy_pass = @proxy_pass elsif p_addr == :ENV then http.proxy_from_env = true else http.proxy_address = p_addr http.proxy_port = p_port || default_port http.proxy_user = p_user http.proxy_pass = p_pass end http end # Creates a new Net::HTTP object for the specified server address, # without opening the TCP connection or initializing the HTTP session. # The +address+ should be a DNS hostname or IP address. def initialize(address, port = nil) @address = address @port = (port || HTTP.default_port) @local_host = nil @local_port = nil @curr_http_version = HTTPVersion @keep_alive_timeout = 2 @last_communicated = nil @close_on_empty_response = false @socket = nil @started = false @open_timeout = nil @read_timeout = 60 @continue_timeout = nil @debug_output = nil @proxy_from_env = false @proxy_uri = nil @proxy_address = nil @proxy_port = nil @proxy_user = nil @proxy_pass = nil @use_ssl = false @ssl_context = nil @ssl_session = nil @enable_post_connection_check = true @sspi_enabled = false SSL_IVNAMES.each do |ivname| instance_variable_set ivname, nil end end def inspect "#<#{self.class} #{@address}:#{@port} open=#{started?}>" end # *WARNING* This method opens a serious security hole. # Never use this method in production code. # # Sets an output stream for debugging. # # http = Net::HTTP.new(hostname) # http.set_debug_output $stderr # http.start { .... } # def set_debug_output(output) warn 'Net::HTTP#set_debug_output called after HTTP started' if started? @debug_output = output end # The DNS host name or IP address to connect to. attr_reader :address # The port number to connect to. attr_reader :port # The local host used to estabilish the connection. attr_accessor :local_host # The local port used to estabilish the connection. attr_accessor :local_port attr_writer :proxy_from_env attr_writer :proxy_address attr_writer :proxy_port attr_writer :proxy_user attr_writer :proxy_pass # Number of seconds to wait for the connection to open. Any number # may be used, including Floats for fractional seconds. If the HTTP # object cannot open a connection in this many seconds, it raises a # Net::OpenTimeout exception. The default value is +nil+. attr_accessor :open_timeout # Number of seconds to wait for one block to be read (via one read(2) # call). Any number may be used, including Floats for fractional # seconds. If the HTTP object cannot read data in this many seconds, # it raises a Net::ReadTimeout exception. The default value is 60 seconds. attr_reader :read_timeout # Setter for the read_timeout attribute. def read_timeout=(sec) @socket.read_timeout = sec if @socket @read_timeout = sec end # Seconds to wait for 100 Continue response. If the HTTP object does not # receive a response in this many seconds it sends the request body. The # default value is +nil+. attr_reader :continue_timeout # Setter for the continue_timeout attribute. def continue_timeout=(sec) @socket.continue_timeout = sec if @socket @continue_timeout = sec end # Seconds to reuse the connection of the previous request. # If the idle time is less than this Keep-Alive Timeout, # Net::HTTP reuses the TCP/IP socket used by the previous communication. # The default value is 2 seconds. attr_accessor :keep_alive_timeout # Returns true if the HTTP session has been started. def started? @started end alias active? started? #:nodoc: obsolete attr_accessor :close_on_empty_response # Returns true if SSL/TLS is being used with HTTP. def use_ssl? @use_ssl end # Turn on/off SSL. # This flag must be set before starting session. # If you change use_ssl value after session started, # a Net::HTTP object raises IOError. def use_ssl=(flag) flag = flag ? true : false if started? and @use_ssl != flag raise IOError, "use_ssl value changed, but session already started" end @use_ssl = flag end SSL_IVNAMES = [ :@ca_file, :@ca_path, :@cert, :@cert_store, :@ciphers, :@key, :@ssl_timeout, :@ssl_version, :@verify_callback, :@verify_depth, :@verify_mode, ] SSL_ATTRIBUTES = [ :ca_file, :ca_path, :cert, :cert_store, :ciphers, :key, :ssl_timeout, :ssl_version, :verify_callback, :verify_depth, :verify_mode, ] # Sets path of a CA certification file in PEM format. # # The file can contain several CA certificates. attr_accessor :ca_file # Sets path of a CA certification directory containing certifications in # PEM format. attr_accessor :ca_path # Sets an OpenSSL::X509::Certificate object as client certificate. # (This method is appeared in Michal Rokos's OpenSSL extension). attr_accessor :cert # Sets the X509::Store to verify peer certificate. attr_accessor :cert_store # Sets the available ciphers. See OpenSSL::SSL::SSLContext#ciphers= attr_accessor :ciphers # Sets an OpenSSL::PKey::RSA or OpenSSL::PKey::DSA object. # (This method is appeared in Michal Rokos's OpenSSL extension.) attr_accessor :key # Sets the SSL timeout seconds. attr_accessor :ssl_timeout # Sets the SSL version. See OpenSSL::SSL::SSLContext#ssl_version= attr_accessor :ssl_version # Sets the verify callback for the server certification verification. attr_accessor :verify_callback # Sets the maximum depth for the certificate chain verification. attr_accessor :verify_depth # Sets the flags for server the certification verification at beginning of # SSL/TLS session. # # OpenSSL::SSL::VERIFY_NONE or OpenSSL::SSL::VERIFY_PEER are acceptable. attr_accessor :verify_mode # Returns the X.509 certificates the server presented. def peer_cert if not use_ssl? or not @socket return nil end @socket.io.peer_cert end # Opens a TCP connection and HTTP session. # # When this method is called with a block, it passes the Net::HTTP # object to the block, and closes the TCP connection and HTTP session # after the block has been executed. # # When called with a block, it returns the return value of the # block; otherwise, it returns self. # def start # :yield: http raise IOError, 'HTTP session already opened' if @started if block_given? begin do_start return yield(self) ensure do_finish end end do_start self end def do_start connect @started = true end private :do_start def connect if proxy? then conn_address = proxy_address conn_port = proxy_port else conn_address = address conn_port = port end D "opening connection to #{conn_address}:#{conn_port}..." s = Timeout.timeout(@open_timeout, Net::OpenTimeout) { TCPSocket.open(conn_address, conn_port, @local_host, @local_port) } s.setsockopt(Socket::IPPROTO_TCP, Socket::TCP_NODELAY, 1) D "opened" if use_ssl? ssl_parameters = Hash.new iv_list = instance_variables SSL_IVNAMES.each_with_index do |ivname, i| if iv_list.include?(ivname) and value = instance_variable_get(ivname) ssl_parameters[SSL_ATTRIBUTES[i]] = value if value end end @ssl_context = OpenSSL::SSL::SSLContext.new @ssl_context.set_params(ssl_parameters) D "starting SSL for #{conn_address}:#{conn_port}..." s = OpenSSL::SSL::SSLSocket.new(s, @ssl_context) s.sync_close = true D "SSL established" end @socket = BufferedIO.new(s) @socket.read_timeout = @read_timeout @socket.continue_timeout = @continue_timeout @socket.debug_output = @debug_output if use_ssl? begin if proxy? buf = "CONNECT #{@address}:#{@port} HTTP/#{HTTPVersion}\r\n" buf << "Host: #{@address}:#{@port}\r\n" if proxy_user credential = ["#{proxy_user}:#{proxy_pass}"].pack('m') credential.delete!("\r\n") buf << "Proxy-Authorization: Basic #{credential}\r\n" end buf << "\r\n" @socket.write(buf) HTTPResponse.read_new(@socket).value end # Server Name Indication (SNI) RFC 3546 s.hostname = @address if s.respond_to? :hostname= if @ssl_session and Time.now < @ssl_session.time + @ssl_session.timeout s.session = @ssl_session if @ssl_session end Timeout.timeout(@open_timeout, Net::OpenTimeout) { s.connect } if @ssl_context.verify_mode != OpenSSL::SSL::VERIFY_NONE s.post_connection_check(@address) end @ssl_session = s.session rescue => exception D "Conn close because of connect error #{exception}" @socket.close if @socket and not @socket.closed? raise exception end end on_connect end private :connect def on_connect end private :on_connect # Finishes the HTTP session and closes the TCP connection. # Raises IOError if the session has not been started. def finish raise IOError, 'HTTP session not yet started' unless started? do_finish end def do_finish @started = false @socket.close if @socket and not @socket.closed? @socket = nil end private :do_finish # # proxy # public # no proxy @is_proxy_class = false @proxy_from_env = false @proxy_addr = nil @proxy_port = nil @proxy_user = nil @proxy_pass = nil # Creates an HTTP proxy class which behaves like Net::HTTP, but # performs all access via the specified proxy. # # This class is obsolete. You may pass these same parameters directly to # Net::HTTP.new. See Net::HTTP.new for details of the arguments. def HTTP.Proxy(p_addr = :ENV, p_port = nil, p_user = nil, p_pass = nil) return self unless p_addr Class.new(self) { @is_proxy_class = true if p_addr == :ENV then @proxy_from_env = true @proxy_address = nil @proxy_port = nil else @proxy_from_env = false @proxy_address = p_addr @proxy_port = p_port || default_port end @proxy_user = p_user @proxy_pass = p_pass } end class << HTTP # returns true if self is a class which was created by HTTP::Proxy. def proxy_class? defined?(@is_proxy_class) ? @is_proxy_class : false end # Address of proxy host. If Net::HTTP does not use a proxy, nil. attr_reader :proxy_address # Port number of proxy host. If Net::HTTP does not use a proxy, nil. attr_reader :proxy_port # User name for accessing proxy. If Net::HTTP does not use a proxy, nil. attr_reader :proxy_user # User password for accessing proxy. If Net::HTTP does not use a proxy, # nil. attr_reader :proxy_pass end # True if requests for this connection will be proxied def proxy? !!if @proxy_from_env then proxy_uri else @proxy_address end end # True if the proxy for this connection is determined from the environment def proxy_from_env? @proxy_from_env end # The proxy URI determined from the environment for this connection. def proxy_uri # :nodoc: @proxy_uri ||= URI::HTTP.new( "http".freeze, nil, address, port, nil, nil, nil, nil, nil ).find_proxy end # The address of the proxy server, if one is configured. def proxy_address if @proxy_from_env then proxy_uri && proxy_uri.hostname else @proxy_address end end # The port of the proxy server, if one is configured. def proxy_port if @proxy_from_env then proxy_uri && proxy_uri.port else @proxy_port end end # The proxy username, if one is configured def proxy_user @proxy_user end # The proxy password, if one is configured def proxy_pass @proxy_pass end alias proxyaddr proxy_address #:nodoc: obsolete alias proxyport proxy_port #:nodoc: obsolete private # without proxy, obsolete def conn_address # :nodoc: address() end def conn_port # :nodoc: port() end def edit_path(path) if proxy? and not use_ssl? then "http://#{addr_port}#{path}" else path end end # # HTTP operations # public # Retrieves data from +path+ on the connected-to host which may be an # absolute path String or a URI to extract the path from. # # +initheader+ must be a Hash like { 'Accept' => '*/*', ... }, # and it defaults to an empty hash. # If +initheader+ doesn't have the key 'accept-encoding', then # a value of "gzip;q=1.0,deflate;q=0.6,identity;q=0.3" is used, # so that gzip compression is used in preference to deflate # compression, which is used in preference to no compression. # Ruby doesn't have libraries to support the compress (Lempel-Ziv) # compression, so that is not supported. The intent of this is # to reduce bandwidth by default. If this routine sets up # compression, then it does the decompression also, removing # the header as well to prevent confusion. Otherwise # it leaves the body as it found it. # # This method returns a Net::HTTPResponse object. # # If called with a block, yields each fragment of the # entity body in turn as a string as it is read from # the socket. Note that in this case, the returned response # object will *not* contain a (meaningful) body. # # +dest+ argument is obsolete. # It still works but you must not use it. # # This method never raises an exception. # # response = http.get('/index.html') # # # using block # File.open('result.txt', 'w') {|f| # http.get('/~foo/') do |str| # f.write str # end # } # def get(path, initheader = {}, dest = nil, &block) # :yield: +body_segment+ res = nil request(Get.new(path, initheader)) {|r| r.read_body dest, &block res = r } res end # Gets only the header from +path+ on the connected-to host. # +header+ is a Hash like { 'Accept' => '*/*', ... }. # # This method returns a Net::HTTPResponse object. # # This method never raises an exception. # # response = nil # Net::HTTP.start('some.www.server', 80) {|http| # response = http.head('/index.html') # } # p response['content-type'] # def head(path, initheader = nil) request(Head.new(path, initheader)) end # Posts +data+ (must be a String) to +path+. +header+ must be a Hash # like { 'Accept' => '*/*', ... }. # # This method returns a Net::HTTPResponse object. # # If called with a block, yields each fragment of the # entity body in turn as a string as it is read from # the socket. Note that in this case, the returned response # object will *not* contain a (meaningful) body. # # +dest+ argument is obsolete. # It still works but you must not use it. # # This method never raises exception. # # response = http.post('/cgi-bin/search.rb', 'query=foo') # # # using block # File.open('result.txt', 'w') {|f| # http.post('/cgi-bin/search.rb', 'query=foo') do |str| # f.write str # end # } # # You should set Content-Type: header field for POST. # If no Content-Type: field given, this method uses # "application/x-www-form-urlencoded" by default. # def post(path, data, initheader = nil, dest = nil, &block) # :yield: +body_segment+ send_entity(path, data, initheader, dest, Post, &block) end # Sends a PATCH request to the +path+ and gets a response, # as an HTTPResponse object. def patch(path, data, initheader = nil, dest = nil, &block) # :yield: +body_segment+ send_entity(path, data, initheader, dest, Patch, &block) end def put(path, data, initheader = nil) #:nodoc: request(Put.new(path, initheader), data) end # Sends a PROPPATCH request to the +path+ and gets a response, # as an HTTPResponse object. def proppatch(path, body, initheader = nil) request(Proppatch.new(path, initheader), body) end # Sends a LOCK request to the +path+ and gets a response, # as an HTTPResponse object. def lock(path, body, initheader = nil) request(Lock.new(path, initheader), body) end # Sends a UNLOCK request to the +path+ and gets a response, # as an HTTPResponse object. def unlock(path, body, initheader = nil) request(Unlock.new(path, initheader), body) end # Sends a OPTIONS request to the +path+ and gets a response, # as an HTTPResponse object. def options(path, initheader = nil) request(Options.new(path, initheader)) end # Sends a PROPFIND request to the +path+ and gets a response, # as an HTTPResponse object. def propfind(path, body = nil, initheader = {'Depth' => '0'}) request(Propfind.new(path, initheader), body) end # Sends a DELETE request to the +path+ and gets a response, # as an HTTPResponse object. def delete(path, initheader = {'Depth' => 'Infinity'}) request(Delete.new(path, initheader)) end # Sends a MOVE request to the +path+ and gets a response, # as an HTTPResponse object. def move(path, initheader = nil) request(Move.new(path, initheader)) end # Sends a COPY request to the +path+ and gets a response, # as an HTTPResponse object. def copy(path, initheader = nil) request(Copy.new(path, initheader)) end # Sends a MKCOL request to the +path+ and gets a response, # as an HTTPResponse object. def mkcol(path, body = nil, initheader = nil) request(Mkcol.new(path, initheader), body) end # Sends a TRACE request to the +path+ and gets a response, # as an HTTPResponse object. def trace(path, initheader = nil) request(Trace.new(path, initheader)) end # Sends a GET request to the +path+. # Returns the response as a Net::HTTPResponse object. # # When called with a block, passes an HTTPResponse object to the block. # The body of the response will not have been read yet; # the block can process it using HTTPResponse#read_body, # if desired. # # Returns the response. # # This method never raises Net::* exceptions. # # response = http.request_get('/index.html') # # The entity body is already read in this case. # p response['content-type'] # puts response.body # # # Using a block # http.request_get('/index.html') {|response| # p response['content-type'] # response.read_body do |str| # read body now # print str # end # } # def request_get(path, initheader = nil, &block) # :yield: +response+ request(Get.new(path, initheader), &block) end # Sends a HEAD request to the +path+ and returns the response # as a Net::HTTPResponse object. # # Returns the response. # # This method never raises Net::* exceptions. # # response = http.request_head('/index.html') # p response['content-type'] # def request_head(path, initheader = nil, &block) request(Head.new(path, initheader), &block) end # Sends a POST request to the +path+. # # Returns the response as a Net::HTTPResponse object. # # When called with a block, the block is passed an HTTPResponse # object. The body of that response will not have been read yet; # the block can process it using HTTPResponse#read_body, if desired. # # Returns the response. # # This method never raises Net::* exceptions. # # # example # response = http.request_post('/cgi-bin/nice.rb', 'datadatadata...') # p response.status # puts response.body # body is already read in this case # # # using block # http.request_post('/cgi-bin/nice.rb', 'datadatadata...') {|response| # p response.status # p response['content-type'] # response.read_body do |str| # read body now # print str # end # } # def request_post(path, data, initheader = nil, &block) # :yield: +response+ request Post.new(path, initheader), data, &block end def request_put(path, data, initheader = nil, &block) #:nodoc: request Put.new(path, initheader), data, &block end alias get2 request_get #:nodoc: obsolete alias head2 request_head #:nodoc: obsolete alias post2 request_post #:nodoc: obsolete alias put2 request_put #:nodoc: obsolete # Sends an HTTP request to the HTTP server. # Also sends a DATA string if +data+ is given. # # Returns a Net::HTTPResponse object. # # This method never raises Net::* exceptions. # # response = http.send_request('GET', '/index.html') # puts response.body # def send_request(name, path, data = nil, header = nil) has_response_body = name != 'HEAD' r = HTTPGenericRequest.new(name,(data ? true : false),has_response_body,path,header) request r, data end # Sends an HTTPRequest object +req+ to the HTTP server. # # If +req+ is a Net::HTTP::Post or Net::HTTP::Put request containing # data, the data is also sent. Providing data for a Net::HTTP::Head or # Net::HTTP::Get request results in an ArgumentError. # # Returns an HTTPResponse object. # # When called with a block, passes an HTTPResponse object to the block. # The body of the response will not have been read yet; # the block can process it using HTTPResponse#read_body, # if desired. # # This method never raises Net::* exceptions. # def request(req, body = nil, &block) # :yield: +response+ unless started? start { req['connection'] ||= 'close' return request(req, body, &block) } end if proxy_user() req.proxy_basic_auth proxy_user(), proxy_pass() unless use_ssl? end req.set_body_internal body res = transport_request(req, &block) if sspi_auth?(res) sspi_auth(req) res = transport_request(req, &block) end res end private # Executes a request which uses a representation # and returns its body. def send_entity(path, data, initheader, dest, type, &block) res = nil request(type.new(path, initheader), data) {|r| r.read_body dest, &block res = r } res end IDEMPOTENT_METHODS_ = %w/GET HEAD PUT DELETE OPTIONS TRACE/ # :nodoc: def transport_request(req) count = 0 begin begin_transport req res = catch(:response) { req.exec @socket, @curr_http_version, edit_path(req.path) begin res = HTTPResponse.read_new(@socket) res.decode_content = req.decode_content end while res.kind_of?(HTTPContinue) res.uri = req.uri res } res.reading_body(@socket, req.response_body_permitted?) { yield res if block_given? } rescue Net::OpenTimeout raise rescue Net::ReadTimeout, IOError, EOFError, Errno::ECONNRESET, Errno::ECONNABORTED, Errno::EPIPE, # avoid a dependency on OpenSSL defined?(OpenSSL::SSL) ? OpenSSL::SSL::SSLError : IOError, Timeout::Error => exception if count == 0 && IDEMPOTENT_METHODS_.include?(req.method) count += 1 @socket.close if @socket and not @socket.closed? D "Conn close because of error #{exception}, and retry" retry end D "Conn close because of error #{exception}" @socket.close if @socket and not @socket.closed? raise end end_transport req, res res rescue => exception D "Conn close because of error #{exception}" @socket.close if @socket and not @socket.closed? raise exception end def begin_transport(req) if @socket.closed? connect elsif @last_communicated && @last_communicated + @keep_alive_timeout < Time.now D 'Conn close because of keep_alive_timeout' @socket.close connect end if not req.response_body_permitted? and @close_on_empty_response req['connection'] ||= 'close' end host = req['host'] || address host = $1 if host =~ /(.*):\d+$/ req.update_uri host, port, use_ssl? req['host'] ||= addr_port() end def end_transport(req, res) @curr_http_version = res.http_version @last_communicated = nil if @socket.closed? D 'Conn socket closed' elsif not res.body and @close_on_empty_response D 'Conn close' @socket.close elsif keep_alive?(req, res) D 'Conn keep-alive' @last_communicated = Time.now else D 'Conn close' @socket.close end end def keep_alive?(req, res) return false if req.connection_close? if @curr_http_version <= '1.0' res.connection_keep_alive? else # HTTP/1.1 or later not res.connection_close? end end def sspi_auth?(res) return false unless @sspi_enabled if res.kind_of?(HTTPProxyAuthenticationRequired) and proxy? and res["Proxy-Authenticate"].include?("Negotiate") begin require 'win32/sspi' true rescue LoadError false end else false end end def sspi_auth(req) n = Win32::SSPI::NegotiateAuth.new req["Proxy-Authorization"] = "Negotiate #{n.get_initial_token}" # Some versions of ISA will close the connection if this isn't present. req["Connection"] = "Keep-Alive" req["Proxy-Connection"] = "Keep-Alive" res = transport_request(req) authphrase = res["Proxy-Authenticate"] or return res req["Proxy-Authorization"] = "Negotiate #{n.complete_authentication(authphrase)}" rescue => err raise HTTPAuthenticationError.new('HTTP authentication failed', err) end # # utils # private def addr_port if use_ssl? address() + (port == HTTP.https_default_port ? '' : ":#{port()}") else address() + (port == HTTP.http_default_port ? '' : ":#{port()}") end end def D(msg) return unless @debug_output @debug_output << msg @debug_output << "\n" end end end require 'net/http/exceptions' require 'net/http/header' require 'net/http/generic_request' require 'net/http/request' require 'net/http/requests' require 'net/http/response' require 'net/http/responses' require 'net/http/proxy_delta' require 'net/http/backward'