Class: HTTPClient

Inherits:
Object
  • Object
show all
Includes:
Util
Defined in:
lib/httpclient.rb,
lib/httpclient/auth.rb,
lib/httpclient/util.rb,
lib/httpclient/session.rb,
lib/httpclient/timeout.rb,
lib/httpclient/version.rb,
lib/httpclient/connection.rb,
lib/httpclient/ssl_config.rb,
lib/httpclient/include_client.rb

Overview

:main:HTTPClient The HTTPClient class provides several methods for accessing Web resources via HTTP.

HTTPClient instance is designed to be MT-safe. You can call a HTTPClient instance from several threads without synchronization after setting up an instance.

clnt = HTTPClient.new
clnt.set_cookie_store('/home/nahi/cookie.dat')
urls.each do |url|
  Thread.new(url) do |u|
    p clnt.head(u).status
  end
end

How to use

At first, how to create your client. See initialize for more detail.

  1. Create simple client.

    clnt = HTTPClient.new

  2. Accessing resources through HTTP proxy. You can use environment variable ‘http_proxy’ or ‘HTTP_PROXY’ instead.

    clnt = HTTPClient.new('http://myproxy:8080')

How to retrieve web resources

See get and get_content.

  1. Get content of specified URL. It returns HTTP::Message object and calling ‘body’ method of it returns a content String.

    puts clnt.get('http://dev.ctor.org/').body

  2. For getting content directly, use get_content. It follows redirect response and returns a String of whole result.

    puts clnt.get_content('http://dev.ctor.org/')

  3. You can pass :follow_redirect option to follow redirect response in get.

    puts clnt.get('http://dev.ctor.org/', :follow_redirect => true)

  4. Get content as chunks of String. It yields chunks of String.

    clnt.get_content('http://dev.ctor.org/') do |chunk|
  puts chunk
end

Invoking other HTTP methods

See head, get, post, put, delete, options, propfind, proppatch and trace.

It returns a HTTP::Message instance as a response.

  1. Do HEAD request.

    res = clnt.head(uri)
p res.header['Last-Modified'][0]

  2. Do GET request with query.

    query = { 'keyword' => 'ruby', 'lang' => 'en' }
res = clnt.get(uri, query)
p res.status
p res.contenttype
p res.header['X-Custom']
puts res.body

    You can also use keyword argument style.

    res = clnt.get(uri, :query => { :keyword => 'ruby', :lang => 'en' })

How to POST

See post.

  1. Do POST a form data.

    body = { 'keyword' => 'ruby', 'lang' => 'en' }
res = clnt.post(uri, body)

    Keyword argument style.

    res = clnt.post(uri, :body => ...)

  2. Do multipart file upload with POST. No need to set extra header by yourself from httpclient/2.1.4.

    File.open('/tmp/post_data') do |file|
  body = { 'upload' => file, 'user' => 'nahi' }
  res = clnt.post(uri, body)
end

  3. Do multipart with custom body.

    File.open('/tmp/post_data') do |file|
  body = [{ 'Content-Type' => 'application/atom+xml; charset=UTF-8',
            :content => '<entry>...</entry>' },
          { 'Content-Type' => 'video/mp4',
            'Content-Transfer-Encoding' => 'binary',
            :content => file }]
  res = clnt.post(uri, body)
end

Accessing via SSL

Ruby needs to be compiled with OpenSSL.

  1. Get content of specified URL via SSL. Just pass an URL which starts with ‘https://’.

    https_url = 'https://www.rsa.com'
clnt.get(https_url)

  2. Getting peer certificate from response.

    res = clnt.get(https_url)
p res.peer_cert #=> returns OpenSSL::X509::Certificate

  3. Configuring OpenSSL options. See HTTPClient::SSLConfig for more details.

    user_cert_file = 'cert.pem'
user_key_file = 'privkey.pem'
clnt.ssl_config.set_client_cert_file(user_cert_file, user_key_file)
clnt.get(https_url)

Handling Cookies

  1. Using volatile Cookies. Nothing to do. HTTPClient handles Cookies.

    clnt = HTTPClient.new
res = clnt.get(url1) # receives Cookies.
res = clnt.get(url2) # sends Cookies if needed.
p res.cookies

  2. Saving non volatile Cookies to a specified file. Need to set a file at first and invoke save method at last.

    clnt = HTTPClient.new
clnt.set_cookie_store('/home/nahi/cookie.dat')
clnt.get(url)
...
clnt.save_cookie_store

  3. Disabling Cookies.

    clnt = HTTPClient.new
clnt.cookie_manager = nil

Configuring authentication credentials

  1. Authentication with Web server. Supports BasicAuth, DigestAuth, and Negotiate/NTLM (requires ruby/ntlm module).

    clnt = HTTPClient.new
domain = 'http://dev.ctor.org/http-access2/'
user = 'user'
password = 'user'
clnt.set_auth(domain, user, password)
p clnt.get('http://dev.ctor.org/http-access2/login').status

  2. Authentication with Proxy server. Supports BasicAuth and NTLM (requires win32/sspi)

    clnt = HTTPClient.new(proxy)
user = 'proxy'
password = 'proxy'
clnt.set_proxy_auth(user, password)
p clnt.get(url)

Invoking HTTP methods with custom header

Pass a Hash or an Array for header argument.

header = { 'Accept' => 'text/html' }
clnt.get(uri, query, header)

header = [['Accept', 'image/jpeg'], ['Accept', 'image/png']]
clnt.get_content(uri, query, header)

Invoking HTTP methods asynchronously

See head_async, get_async, post_async, put_async, delete_async, options_async, propfind_async, proppatch_async, and trace_async. It immediately returns a HTTPClient::Connection instance as a returning value.

connection = clnt.post_async(url, body)
print 'posting.'
while true
  break if connection.finished?
  print '.'
  sleep 1
end
puts '.'
res = connection.pop
p res.status
p res.body.read # res.body is an IO for the res of async method.

Shortcut methods

You can invoke get_content, get, etc. without creating HTTPClient instance.

ruby -rhttpclient -e 'puts HTTPClient.get_content(ARGV.shift)' http://dev.ctor.org/
ruby -rhttpclient -e 'p HTTPClient.head(ARGV.shift).header["last-modified"]' http://dev.ctor.org/

Direct Known Subclasses

HTTPAccess2::Client, OAuthClient

Defined Under Namespace

Modules: DebugSocket, IncludeClient, SocketWrap, Timeout, Util Classes: AuthFilterBase, BadResponseError, BasicAuth, ConfigurationError, ConnectTimeoutError, Connection, DigestAuth, KeepAliveDisconnected, LoopBackSocket, NegotiateAuth, OAuth, ProxyAuth, ProxyBasicAuth, ProxyDigestAuth, ReceiveTimeoutError, RetryableResponse, SSLConfig, SSLSocketWrap, SSPINegotiateAuth, SendTimeoutError, Session, SessionManager, Site, TimeoutError, TimeoutScheduler, WWWAuth

Constant Summary collapse

RUBY_VERSION_STRING = 
"ruby #{RUBY_VERSION} (#{RUBY_RELEASE_DATE})"
LIB_NAME = 
"(#{VERSION}, #{RUBY_VERSION_STRING})"
PROPFIND_DEFAULT_EXTHEADER =

Default header for PROPFIND request.

{ 'Depth' => '0' }
DEFAULT_AGENT_NAME =

Default User-Agent header

'HTTPClient/1.0'
NTLMEnabled = 
false
SSPIEnabled = 
false
GSSAPIEnabled = 
false
VERSION = 
'2.5.3'

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Util

#argument_to_hash, hash_find_value, #http?, #https?, #keyword_argument, try_require, uri_dirname, uri_part_of, urify

Constructor Details

#initialize(*args) ⇒ HTTPClient

Creates a HTTPClient instance which manages sessions, cookies, etc.

HTTPClient.new takes optional arguments as a Hash.

* :proxy - proxy url string
* :agent_name - User-Agent String
* :from - from header String
* :base_url - base URL of resources
* :default_header - header Hash all HTTP requests should have
* :force_basic_auth - flag for sending Authorization header w/o gettin 401 first

User-Agent and From are embedded in HTTP request Header if given. From header is not set without setting it explicitly.

proxy = 'http://myproxy:8080'
agent_name = 'MyAgent/0.1'
from = '[email protected]'
HTTPClient.new(proxy, agent_name, from)

After you set :base_url, all resources you pass to get, post and other methods are recognized to be prefixed with base_url. Say base_url is ‘api.example.com/v1, get(’/users’) is the same as get(‘api.example.com/v1/users’) internally. You can also pass full URL from ‘http://’ even after setting base_url.

:default_header is for providing default headers Hash that all HTTP requests should have, such as custom ‘Authorization’ header in API. You can override :default_header with :header Hash parameter in HTTP request methods.

:force_basic_auth turns on/off the BasicAuth force flag. Generally HTTP client must send Authorization header after it gets 401 error from server from security reason. But in some situation (e.g. API client) you might want to send Authorization from the beginning.



399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
 
# File 'lib/httpclient.rb', line 399

def initialize(*args)
  proxy, agent_name, from, base_url, default_header, force_basic_auth =
    keyword_argument(args, :proxy, :agent_name, :from, :base_url, :default_header, :force_basic_auth)
  @proxy = nil        # assigned later.
  @no_proxy = nil
  @no_proxy_regexps = []
  @base_url = base_url
  @default_header = default_header || {}
  @www_auth = WWWAuth.new
  @proxy_auth = ProxyAuth.new
  @www_auth.basic_auth.force_auth = @proxy_auth.basic_auth.force_auth = force_basic_auth
  @request_filter = [@proxy_auth, @www_auth]
  @debug_dev = nil
  @redirect_uri_callback = method(:default_redirect_uri_callback)
  @test_loopback_response = []
  @session_manager = SessionManager.new(self)
  @session_manager.agent_name = agent_name || DEFAULT_AGENT_NAME
  @session_manager.from = from
  @session_manager.ssl_config = @ssl_config = SSLConfig.new(self)
  @cookie_manager = WebAgent::CookieManager.new
  @follow_redirect_count = 10
  load_environment
  self.proxy = proxy if proxy
  keep_webmock_compat
end

Instance Attribute Details

#base_url ⇒ Object

Base url of resources.



328
329
330
 
# File 'lib/httpclient.rb', line 328

def base_url
  @base_url
end

#cookie_manager ⇒ Object

WebAgent::CookieManager

Cookies configurator.



312
313
314
 
# File 'lib/httpclient.rb', line 312

def cookie_manager
  @cookie_manager
end

#default_header ⇒ Object

Defalut request header.



330
331
332
 
# File 'lib/httpclient.rb', line 330

def default_header
  @default_header
end

#follow_redirect_count ⇒ Object

How many times get_content and post_content follows HTTP redirect. 10 by default.



326
327
328
 
# File 'lib/httpclient.rb', line 326

def follow_redirect_count
  @follow_redirect_count
end

#proxy_auth ⇒ Object (readonly)

HTTPClient::ProxyAuth

Proxy authentication handler.



321
322
323
 
# File 'lib/httpclient.rb', line 321

def proxy_auth
  @proxy_auth
end

#request_filter ⇒ Object (readonly)

An array of request filter which can trap HTTP request/response. See HTTPClient::WWWAuth to see how to use it.



319
320
321
 
# File 'lib/httpclient.rb', line 319

def request_filter
  @request_filter
end

#ssl_config ⇒ Object (readonly)

HTTPClient::SSLConfig

SSL configurator.



310
311
312
 
# File 'lib/httpclient.rb', line 310

def ssl_config
  @ssl_config
end

#test_loopback_response ⇒ Object (readonly)

An array of response HTTP message body String which is used for loop-back test. See test/* to see how to use it. If you want to do loop-back test of HTTP header, use test_loopback_http_response instead.



316
317
318
 
# File 'lib/httpclient.rb', line 316

def test_loopback_response
  @test_loopback_response
end

#www_auth ⇒ Object (readonly)

HTTPClient::WWWAuth

WWW authentication handler.



323
324
325
 
# File 'lib/httpclient.rb', line 323

def www_auth
  @www_auth
end

Class Method Details

.timeout_scheduler ⇒ Object

CAUTION: caller must aware of race condition.



116
117
118
 
# File 'lib/httpclient/timeout.rb', line 116

def timeout_scheduler
  @timeout_scheduler ||= TimeoutScheduler.new
end

Instance Method Details

#cookies ⇒ Object

Returns stored cookies.



585
586
587
588
589
 
# File 'lib/httpclient.rb', line 585

def cookies
  if @cookie_manager
    @cookie_manager.cookies
  end
end

#debug_dev ⇒ Object

Returns debug device if exists. See debug_dev=.



441
442
443
 
# File 'lib/httpclient.rb', line 441

def debug_dev
  @debug_dev
end

#debug_dev=(dev) ⇒ Object

Sets debug device. Once debug device is set, all HTTP requests and responses are dumped to given device. dev must respond to << for dump.

Calling this method resets all existing sessions.



449
450
451
452
453
 
# File 'lib/httpclient.rb', line 449

def debug_dev=(dev)
  @debug_dev = dev
  reset_all
  @session_manager.debug_dev = dev
end

#default_redirect_uri_callback(uri, res) ⇒ Object

A default method for redirect uri callback. This method is used by HTTPClient instance by default. This callback allows relative redirect such as

Location: ../foo/

in HTTP header.



693
694
695
696
697
698
699
700
701
702
703
704
705
 
# File 'lib/httpclient.rb', line 693

def default_redirect_uri_callback(uri, res)
  newuri = urify(res.header['location'][0])
  if !http?(newuri) && !https?(newuri)
    newuri = uri + newuri
    warn("could be a relative URI in location header which is not recommended")
    warn("'The field value consists of a single absolute URI' in HTTP spec")
  end
  if https?(uri) && !https?(newuri)
    raise BadResponseError.new("redirecting to non-https resource")
  end
  puts "redirect to: #{newuri}" if $DEBUG
  newuri
end

#delete(uri, *args, &block) ⇒ Object

Sends DELETE request to the specified URL. See request for arguments.



740
741
742
 
# File 'lib/httpclient.rb', line 740

def delete(uri, *args, &block)
  request(:delete, uri, argument_to_hash(args, :body, :header, :query), &block)
end

#delete_async(uri, *args) ⇒ Object

Sends DELETE request in async style. See request_async2 for arguments. It immediately returns a HTTPClient::Connection instance as a result.



863
864
865
 
# File 'lib/httpclient.rb', line 863

def delete_async(uri, *args)
  request_async2(:delete, uri, argument_to_hash(args, :body, :header, :query))
end

#force_basic_auth=(force_basic_auth) ⇒ Object

Turn on/off the BasicAuth force flag. Generally HTTP client must send Authorization header after it gets 401 error from server from security reason. But in some situation (e.g. API client) you might want to send Authorization from the beginning.



562
563
564
 
# File 'lib/httpclient.rb', line 562

def force_basic_auth=(force_basic_auth)
  @www_auth.basic_auth.force_auth = @proxy_auth.basic_auth.force_auth = force_basic_auth
end

#get(uri, *args, &block) ⇒ Object

Sends GET request to the specified URL. See request for arguments.



713
714
715
 
# File 'lib/httpclient.rb', line 713

def get(uri, *args, &block)
  request(:get, uri, argument_to_hash(args, :query, :header, :follow_redirect), &block)
end

#get_async(uri, *args) ⇒ Object

Sends GET request in async style. See request_async for arguments. It immediately returns a HTTPClient::Connection instance as a result.



835
836
837
 
# File 'lib/httpclient.rb', line 835

def get_async(uri, *args)
  request_async2(:get, uri, argument_to_hash(args, :query, :header))
end

#get_content(uri, *args, &block) ⇒ Object

Retrieves a web resource.

uri

a String or an URI object which represents an URL of web resource.

query

a Hash or an Array of query part of URL. e.g. { “a” => “b” } => ‘host/part?a=b’. Give an array to pass multiple value like

[“a”, “b”], [“a”, “c”]

> ‘host/part?a=b&a=c’.

header

a Hash or an Array of extra headers. e.g. { ‘Accept’ => ‘text/html’ } or [[‘Accept’, ‘image/jpeg’], [‘Accept’, ‘image/png’]].

&block

Give a block to get chunked message-body of response like get_content(uri) { |chunked_body| … }. Size of each chunk may not be the same.

get_content follows HTTP redirect status (see HTTP::Status.redirect?) internally and try to retrieve content from redirected URL. See redirect_uri_callback= how HTTP redirection is handled.

If you need to get full HTTP response including HTTP status and headers, use get method. get returns HTTP::Message as a response and you need to follow HTTP redirect by yourself if you need.



624
625
626
627
 
# File 'lib/httpclient.rb', line 624

def get_content(uri, *args, &block)
  query, header = keyword_argument(args, :query, :header)
  success_content(follow_redirect(:get, uri, query, nil, header || {}, &block))
end

#head(uri, *args) ⇒ Object

Sends HEAD request to the specified URL. See request for arguments.



708
709
710
 
# File 'lib/httpclient.rb', line 708

def head(uri, *args)
  request(:head, uri, argument_to_hash(args, :query, :header, :follow_redirect))
end

#head_async(uri, *args) ⇒ Object

Sends HEAD request in async style. See request_async for arguments. It immediately returns a HTTPClient::Connection instance as a result.



829
830
831
 
# File 'lib/httpclient.rb', line 829

def head_async(uri, *args)
  request_async2(:head, uri, argument_to_hash(args, :query, :header))
end

#keep_webmock_compat ⇒ Object

webmock 1.6.2 depends on HTTP::Message#body.content to work. let’s keep it work iif webmock is loaded for a while.



427
428
429
430
431
432
433
434
435
436
437
438
 
# File 'lib/httpclient.rb', line 427

def keep_webmock_compat
  if respond_to?(:do_get_block_with_webmock)
    ::HTTP::Message.module_eval do
      def body
        def (o = self.content).content
          self
        end
        o
      end
    end
  end
end

#no_proxy ⇒ Object

Returns NO_PROXY setting String if given.



491
492
493
 
# File 'lib/httpclient.rb', line 491

def no_proxy
  @no_proxy
end

#no_proxy=(no_proxy) ⇒ Object

Sets NO_PROXY setting String. no_proxy must be a comma separated String. Each entry must be ‘host’ or ‘host:port’ such as; HTTPClient#no_proxy = ‘example.com,example.co.jp:443’

‘localhost’ is treated as a no_proxy site regardless of explicitly listed. HTTPClient checks given URI objects before accessing it. ‘host’ is tail string match. No IP-addr conversion.

You can use environment variable ‘no_proxy’ or ‘NO_PROXY’ for it.

Calling this method resets all existing sessions.



506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
 
# File 'lib/httpclient.rb', line 506

def no_proxy=(no_proxy)
  @no_proxy = no_proxy
  @no_proxy_regexps.clear
  if @no_proxy
    @no_proxy.scan(/([^\s:,]+)(?::(\d+))?/) do |host, port|
      if host[0] == ?.
        regexp = /#{Regexp.quote(host)}\z/i
      else
        regexp = /(\A|\.)#{Regexp.quote(host)}\z/i
      end
      @no_proxy_regexps << [regexp, port]
    end
  end
  reset_all
end

#options(uri, *args, &block) ⇒ Object

Sends OPTIONS request to the specified URL. See request for arguments.



745
746
747
748
 
# File 'lib/httpclient.rb', line 745

def options(uri, *args, &block)
  new_args = argument_to_hash(args, :header, :query, :body)
  request(:options, uri, new_args, &block)
end

#options_async(uri, *args) ⇒ Object

Sends OPTIONS request in async style. See request_async2 for arguments. It immediately returns a HTTPClient::Connection instance as a result.



869
870
871
 
# File 'lib/httpclient.rb', line 869

def options_async(uri, *args)
  request_async2(:options, uri, argument_to_hash(args, :header, :query, :body))
end

#post(uri, *args, &block) ⇒ Object

Sends POST request to the specified URL. See request for arguments. You should not depend on :follow_redirect => true for POST method. It sends the same POST method to the new location which is prohibited in HTTP spec.



720
721
722
723
724
725
726
727
 
# File 'lib/httpclient.rb', line 720

def post(uri, *args, &block)
  if hashy_argument_has_keys(args, :query, :body)
    new_args = args[0]
  else
    new_args = argument_to_hash(args, :body, :header, :follow_redirect)
  end
  request(:post, uri, new_args, &block)
end

#post_async(uri, *args) ⇒ Object

Sends POST request in async style. See request_async for arguments. It immediately returns a HTTPClient::Connection instance as a result.



841
842
843
844
845
846
847
848
 
# File 'lib/httpclient.rb', line 841

def post_async(uri, *args)
  if hashy_argument_has_keys(args, :query, :body)
    new_args = args[0]
  else
    new_args = argument_to_hash(args, :body, :header)
  end
  request_async2(:post, uri, new_args)
end

#post_content(uri, *args, &block) ⇒ Object

Posts a content.

uri

a String or an URI object which represents an URL of web resource.

body

a Hash or an Array of body part. e.g.

{ "a" => "b" } => 'a=b'

Give an array to pass multiple value like

[["a", "b"], ["a", "c"]] => 'a=b&a=c'

When you pass a File as a value, it will be posted as a multipart/form-data. e.g.

{ 'upload' => file }

You can also send custom multipart by passing an array of hashes. Each part must have a :content attribute which can be a file, all other keys will become headers.

[{ 'Content-Type' => 'text/plain', :content => "some text" },
 { 'Content-Type' => 'video/mp4', :content => File.new('video.mp4') }]
=> <Two parts with custom Content-Type header>
header

a Hash or an Array of extra headers. e.g.

{ 'Accept' => 'text/html' }

or

[['Accept', 'image/jpeg'], ['Accept', 'image/png']].
&block

Give a block to get chunked message-body of response like

post_content(uri) { |chunked_body| ... }.

Size of each chunk may not be the same.

post_content follows HTTP redirect status (see HTTP::Status.redirect?) internally and try to post the content to redirected URL. See redirect_uri_callback= how HTTP redirection is handled. Bear in mind that you should not depend on post_content because it sends the same POST method to the new location which is prohibited in HTTP spec.

If you need to get full HTTP response including HTTP status and headers, use post method.



661
662
663
664
665
666
667
668
669
 
# File 'lib/httpclient.rb', line 661

def post_content(uri, *args, &block)
  if hashy_argument_has_keys(args, :query, :body)
    query, body, header = keyword_argument(args, :query, :body, :header)
  else
    query = nil
    body, header = keyword_argument(args, :body, :header)
  end
  success_content(follow_redirect(:post, uri, query, body, header || {}, &block))
end

#propfind(uri, *args, &block) ⇒ Object

Sends PROPFIND request to the specified URL. See request for arguments.



751
752
753
 
# File 'lib/httpclient.rb', line 751

def propfind(uri, *args, &block)
  request(:propfind, uri, argument_to_hash(args, :header), &block)
end

#propfind_async(uri, *args) ⇒ Object

Sends PROPFIND request in async style. See request_async2 for arguments. It immediately returns a HTTPClient::Connection instance as a result.



875
876
877
 
# File 'lib/httpclient.rb', line 875

def propfind_async(uri, *args)
  request_async2(:propfind, uri, argument_to_hash(args, :body, :header))
end

#proppatch(uri, *args, &block) ⇒ Object

Sends PROPPATCH request to the specified URL. See request for arguments.



756
757
758
 
# File 'lib/httpclient.rb', line 756

def proppatch(uri, *args, &block)
  request(:proppatch, uri, argument_to_hash(args, :body, :header), &block)
end

#proppatch_async(uri, *args) ⇒ Object

Sends PROPPATCH request in async style. See request_async2 for arguments. It immediately returns a HTTPClient::Connection instance as a result.



881
882
883
 
# File 'lib/httpclient.rb', line 881

def proppatch_async(uri, *args)
  request_async2(:proppatch, uri, argument_to_hash(args, :body, :header))
end

#proxy ⇒ Object

Returns URI object of HTTP proxy if exists.



456
457
458
 
# File 'lib/httpclient.rb', line 456

def proxy
  @proxy
end

#proxy=(proxy) ⇒ Object

Sets HTTP proxy used for HTTP connection. Given proxy can be an URI, a String or nil. You can set user/password for proxy authentication like HTTPClient#proxy = ‘user:passwd@myproxy:8080’

You can use environment variable ‘http_proxy’ or ‘HTTP_PROXY’ for it. You need to use ‘cgi_http_proxy’ or ‘CGI_HTTP_PROXY’ instead if you run HTTPClient from CGI environment from security reason. (HTTPClient checks ‘REQUEST_METHOD’ environment variable whether it’s CGI or not)

Calling this method resets all existing sessions.



470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
 
# File 'lib/httpclient.rb', line 470

def proxy=(proxy)
  if proxy.nil? || proxy.to_s.empty?
    @proxy = nil
    @proxy_auth.reset_challenge
  else
    @proxy = urify(proxy)
    if @proxy.scheme == nil or @proxy.scheme.downcase != 'http' or
        @proxy.host == nil or @proxy.port == nil
      raise ArgumentError.new("unsupported proxy #{proxy}")
    end
    @proxy_auth.reset_challenge
    if @proxy.user || @proxy.password
      @proxy_auth.set_auth(@proxy.user, @proxy.password)
    end
  end
  reset_all
  @session_manager.proxy = @proxy
  @proxy
end

#put(uri, *args, &block) ⇒ Object

Sends PUT request to the specified URL. See request for arguments.



730
731
732
733
734
735
736
737
 
# File 'lib/httpclient.rb', line 730

def put(uri, *args, &block)
  if hashy_argument_has_keys(args, :query, :body)
    new_args = args[0]
  else
    new_args = argument_to_hash(args, :body, :header)
  end
  request(:put, uri, new_args, &block)
end

#put_async(uri, *args) ⇒ Object

Sends PUT request in async style. See request_async2 for arguments. It immediately returns a HTTPClient::Connection instance as a result.



852
853
854
855
856
857
858
859
 
# File 'lib/httpclient.rb', line 852

def put_async(uri, *args)
  if hashy_argument_has_keys(args, :query, :body)
    new_args = args[0]
  else
    new_args = argument_to_hash(args, :body, :header)
  end
  request_async2(:put, uri, new_args)
end

#redirect_uri_callback=(redirect_uri_callback) ⇒ Object

Sets callback proc when HTTP redirect status is returned for get_content and post_content. default_redirect_uri_callback is used by default.

If you need strict implementation which does not allow relative URI redirection, set strict_redirect_uri_callback instead.

clnt.redirect_uri_callback = clnt.method(:strict_redirect_uri_callback)



599
600
601
 
# File 'lib/httpclient.rb', line 599

def redirect_uri_callback=(redirect_uri_callback)
  @redirect_uri_callback = redirect_uri_callback
end

#request(method, uri, *args, &block) ⇒ Object

Sends a request to the specified URL.

method

HTTP method to be sent. method.to_s.upcase is used.

uri

a String or an URI object which represents an URL of web resource.

query

a Hash or an Array of query part of URL. e.g. { “a” => “b” } => ‘host/part?a=b’ Give an array to pass multiple value like

[“a”, “b”], [“a”, “c”]

> ‘host/part?a=b&a=c’

body

a Hash or an Array of body part. e.g.

{ "a" => "b" }
=> 'a=b'

Give an array to pass multiple value like

[["a", "b"], ["a", "c"]]
=> 'a=b&a=c'.

When the given method is ‘POST’ and the given body contains a file as a value, it will be posted as a multipart/form-data. e.g.

{ 'upload' => file }

You can also send custom multipart by passing an array of hashes. Each part must have a :content attribute which can be a file, all other keys will become headers.

[{ 'Content-Type' => 'text/plain', :content => "some text" },
 { 'Content-Type' => 'video/mp4', :content => File.new('video.mp4') }]
=> <Two parts with custom Content-Type header>

See HTTP::Message.file? for actual condition of ‘a file’.

header

a Hash or an Array of extra headers. e.g. { ‘Accept’ => ‘text/html’ } or [[‘Accept’, ‘image/jpeg’], [‘Accept’, ‘image/png’]].

&block

Give a block to get chunked message-body of response like get(uri) { |chunked_body| … }. Size of each chunk may not be the same.

You can also pass a String as a body. HTTPClient just sends a String as a HTTP request message body.

When you pass an IO as a body, HTTPClient sends it as a HTTP request with chunked encoding (Transfer-Encoding: chunked in HTTP header) if IO does not respond to :size. Bear in mind that some server application does not support chunked request. At least cgi.rb does not support it.



803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
 
# File 'lib/httpclient.rb', line 803

def request(method, uri, *args, &block)
  query, body, header, follow_redirect = keyword_argument(args, :query, :body, :header, :follow_redirect)
  if method == :propfind
    header ||= PROPFIND_DEFAULT_EXTHEADER
  else
    header ||= {}
  end
  uri = to_resource_url(uri)
  if block
    if block.arity == 1
      filtered_block = proc { |res, str|
        block.call(str)
      }
    else
      filtered_block = block
    end
  end
  if follow_redirect
    follow_redirect(method, uri, query, body, header, &block)
  else
    do_request(method, uri, query, body, header, &filtered_block)
  end
end

#request_async(method, uri, query = nil, body = nil, header = {}) ⇒ Object

Sends a request in async style. request method creates new Thread for HTTP connection and returns a HTTPClient::Connection instance immediately.

Arguments definition is the same as request.



895
896
897
898
 
# File 'lib/httpclient.rb', line 895

def request_async(method, uri, query = nil, body = nil, header = {})
  uri = to_resource_url(uri)
  do_request_async(method, uri, query, body, header)
end

#request_async2(method, uri, *args) ⇒ Object

new method that has same signature as ‘request’



901
902
903
904
905
906
907
908
909
910
911
912
913
 
# File 'lib/httpclient.rb', line 901

def request_async2(method, uri, *args)
  query, body, header = keyword_argument(args, :query, :body, :header)
  if [:post, :put].include?(method)
    body ||= ''
  end
  if method == :propfind
    header ||= PROPFIND_DEFAULT_EXTHEADER
  else
    header ||= {}
  end
  uri = to_resource_url(uri)
  do_request_async(method, uri, query, body, header)
end

#reset(uri) ⇒ Object

Resets internal session for the given URL. Keep-alive connection for the site (host-port pair) is disconnected if exists.



917
918
919
920
 
# File 'lib/httpclient.rb', line 917

def reset(uri)
  uri = to_resource_url(uri)
  @session_manager.reset(uri)
end

#reset_all ⇒ Object

Resets all of internal sessions. Keep-alive connections are disconnected.



923
924
925
 
# File 'lib/httpclient.rb', line 923

def reset_all
  @session_manager.reset_all
end

#save_cookie_store ⇒ Object

Try to save Cookies to the file specified in set_cookie_store. Unexpected error will be raised if you don’t call set_cookie_store first. (interface mismatch between WebAgent::CookieManager implementation)



580
581
582
 
# File 'lib/httpclient.rb', line 580

def save_cookie_store
  @cookie_manager.save_cookies
end

#set_auth(domain, user, passwd) ⇒ Object

Sets credential for Web server authentication.

domain

a String or an URI to specify where HTTPClient should use this

credential.  If you set uri to nil, HTTPClient uses this credential
wherever a server requires it.
user

username String.

passwd

password String.

You can set multiple credentials for each uri.

clnt.set_auth('http://www.example.com/foo/', 'foo_user', 'passwd')
clnt.set_auth('http://www.example.com/bar/', 'bar_user', 'passwd')

Calling this method resets all existing sessions.



535
536
537
538
539
 
# File 'lib/httpclient.rb', line 535

def set_auth(domain, user, passwd)
  uri = to_resource_url(domain)
  @www_auth.set_auth(uri, user, passwd)
  reset_all
end

#set_basic_auth(domain, user, passwd) ⇒ Object

Deprecated. Use set_auth instead.



542
543
544
545
546
 
# File 'lib/httpclient.rb', line 542

def set_basic_auth(domain, user, passwd)
  uri = to_resource_url(domain)
  @www_auth.basic_auth.set(uri, user, passwd)
  reset_all
end

#set_cookie_store(filename) ⇒ Object

Sets the filename where non-volatile Cookies be saved by calling save_cookie_store. This method tries to load and managing Cookies from the specified file.

Calling this method resets all existing sessions.



571
572
573
574
575
 
# File 'lib/httpclient.rb', line 571

def set_cookie_store(filename)
  @cookie_manager.cookies_file = filename
  @cookie_manager.load_cookies if filename
  reset_all
end

#set_proxy_auth(user, passwd) ⇒ Object

Sets credential for Proxy authentication.

user

username String.

passwd

password String.

Calling this method resets all existing sessions.



553
554
555
556
 
# File 'lib/httpclient.rb', line 553

def set_proxy_auth(user, passwd)
  @proxy_auth.set_auth(user, passwd)
  reset_all
end

#strict_redirect_uri_callback(uri, res) ⇒ Object

A method for redirect uri callback. How to use:

clnt.redirect_uri_callback = clnt.method(:strict_redirect_uri_callback)

This callback does not allow relative redirect such as

Location: ../foo/

in HTTP header. (raises BadResponseError instead)



676
677
678
679
680
681
682
683
684
685
686
 
# File 'lib/httpclient.rb', line 676

def strict_redirect_uri_callback(uri, res)
  newuri = urify(res.header['location'][0])
  if https?(uri) && !https?(newuri)
    raise BadResponseError.new("redirecting to non-https resource")
  end
  if !http?(newuri) && !https?(newuri)
    raise BadResponseError.new("unexpected location: #{newuri}", res)
  end
  puts "redirect to: #{newuri}" if $DEBUG
  newuri
end

#trace(uri, *args, &block) ⇒ Object

Sends TRACE request to the specified URL. See request for arguments.



761
762
763
 
# File 'lib/httpclient.rb', line 761

def trace(uri, *args, &block)
  request('TRACE', uri, argument_to_hash(args, :query, :header), &block)
end

#trace_async(uri, *args) ⇒ Object

Sends TRACE request in async style. See request_async2 for arguments. It immediately returns a HTTPClient::Connection instance as a result.



887
888
889
 
# File 'lib/httpclient.rb', line 887

def trace_async(uri, *args)
  request_async2(:trace, uri, argument_to_hash(args, :query, :header))
end