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/connection.rb,
lib/httpclient/ssl_config.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/', :foolow_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 wth 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' => '*/*' }
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, SocketWrap, Timeout, Util Classes: AuthFilterBase, BadResponseError, BasicAuth, ConfigurationError, ConnectTimeoutError, Connection, DigestAuth, KeepAliveDisconnected, LoopBackSocket, NegotiateAuth, OAuth, ProxyAuth, ReceiveTimeoutError, RetryableResponse, SSLConfig, SSLSocketWrap, SSPINegotiateAuth, SendTimeoutError, Session, SessionManager, Site, TimeoutError, TimeoutScheduler, WWWAuth

Constant Summary collapse

VERSION = 
'2.2.0'
RUBY_VERSION_STRING = 
"ruby #{RUBY_VERSION} (#{RUBY_RELEASE_DATE}) [#{RUBY_PLATFORM}]"
LIB_NAME = 
"(#{$1}/#{$2}, #{RUBY_VERSION_STRING})"
PROPFIND_DEFAULT_EXTHEADER =

Default header for PROPFIND request.

{ 'Depth' => '0' }

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Util

#argument_to_hash, #force_binary, hash_find_value, #https?, #keyword_argument, uri_dirname, uri_part_of, #urify

Constructor Details

#initialize(*args) ⇒ HTTPClient

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

HTTPClient.new takes 3 optional arguments for proxy url string, User-Agent String and From header String. User-Agent and From are embedded in HTTP request Header if given. No User-Agent and From header added without setting it explicitly.

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

You can use a keyword argument style Hash. Keys are :proxy, :agent_name and :from.

HTTPClient.new(:agent_name => 'MyAgent/0.1')



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# File 'lib/httpclient.rb', line 374

def initialize(*args)
  proxy, agent_name, from = keyword_argument(args, :proxy, :agent_name, :from)
  @proxy = nil        # assigned later.
  @no_proxy = nil
  @www_auth = WWWAuth.new
  @proxy_auth = ProxyAuth.new
  @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
  @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
end

Instance Attribute Details

WebAgent::CookieManager

Cookies configurator.



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

def cookie_manager
  @cookie_manager
end

#follow_redirect_count ⇒ Object

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



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

def follow_redirect_count
  @follow_redirect_count
end

#proxy_auth ⇒ Object (readonly)

HTTPClient::ProxyAuth

Proxy authentication handler.



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

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.



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

def request_filter
  @request_filter
end

#ssl_config ⇒ Object (readonly)

HTTPClient::SSLConfig

SSL configurator.



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

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.



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

def test_loopback_response
  @test_loopback_response
end

#www_auth ⇒ Object (readonly)

HTTPClient::WWWAuth

WWW authentication handler.



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

def www_auth
  @www_auth
end

Class Method Details

.timeout_scheduler ⇒ Object

CAUTION: caller must aware of race condition.



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

def timeout_scheduler
  @timeout_scheduler ||= TimeoutScheduler.new
end

Instance Method Details

#cookies ⇒ Object

Returns stored cookies.



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# File 'lib/httpclient.rb', line 520

def cookies
  if @cookie_manager
    @cookie_manager.cookies
  end
end

#debug_dev ⇒ Object

Returns debug device if exists. See debug_dev=.



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# File 'lib/httpclient.rb', line 395

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.



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# File 'lib/httpclient.rb', line 403

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.



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# File 'lib/httpclient.rb', line 621

def default_redirect_uri_callback(uri, res)
  newuri = URI.parse(res.header['location'][0])
  unless newuri.is_a?(URI::HTTP)
    newuri = uri + newuri
    STDERR.puts("could be a relative URI in location header which is not recommended")
    STDERR.puts("'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.



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# File 'lib/httpclient.rb', line 656

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

#delete_async(uri, *args) ⇒ Object

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



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# File 'lib/httpclient.rb', line 771

def delete_async(uri, *args)
  header = keyword_argument(args, :header)
  request_async(:delete, uri, nil, nil, header || {})
end

#get(uri, *args, &block) ⇒ Object

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



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# File 'lib/httpclient.rb', line 641

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.



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# File 'lib/httpclient.rb', line 750

def get_async(uri, *args)
  query, header = keyword_argument(args, :query, :header)
  request_async(:get, uri, query, nil, 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’ => ‘/’ } 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.



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# File 'lib/httpclient.rb', line 559

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

#head(uri, *args) ⇒ Object

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



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# File 'lib/httpclient.rb', line 636

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



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# File 'lib/httpclient.rb', line 743

def head_async(uri, *args)
  query, header = keyword_argument(args, :query, :header)
  request_async(:head, uri, query, nil, header || {})
end

#no_proxy ⇒ Object

Returns NO_PROXY setting String if given.



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# File 'lib/httpclient.rb', line 445

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.



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# File 'lib/httpclient.rb', line 460

def no_proxy=(no_proxy)
  @no_proxy = no_proxy
  reset_all
end

#options(uri, *args, &block) ⇒ Object

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



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# File 'lib/httpclient.rb', line 661

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

#options_async(uri, *args) ⇒ Object

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



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# File 'lib/httpclient.rb', line 778

def options_async(uri, *args)
  header = keyword_argument(args, :header)
  request_async(:options, uri, nil, nil, header || {})
end

#post(uri, *args, &block) ⇒ Object

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



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# File 'lib/httpclient.rb', line 646

def post(uri, *args, &block)
  request(:post, uri, argument_to_hash(args, :body, :header, :follow_redirect), &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.



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

def post_async(uri, *args)
  body, header = keyword_argument(args, :body, :header)
  request_async(:post, uri, nil, body || '', header || {})
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' => '*/*' }

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.

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



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# File 'lib/httpclient.rb', line 594

def post_content(uri, *args, &block)
  body, header = keyword_argument(args, :body, :header)
  follow_redirect(:post, uri, nil, body, header || {}, &block).content
end

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

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



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# File 'lib/httpclient.rb', line 666

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_async for arguments. It immediately returns a HTTPClient::Connection instance as a result.



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# File 'lib/httpclient.rb', line 785

def propfind_async(uri, *args)
  header = keyword_argument(args, :header)
  request_async(:propfind, uri, nil, nil, header || PROPFIND_DEFAULT_EXTHEADER)
end

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

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



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# File 'lib/httpclient.rb', line 671

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_async for arguments. It immediately returns a HTTPClient::Connection instance as a result.



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# File 'lib/httpclient.rb', line 792

def proppatch_async(uri, *args)
  body, header = keyword_argument(args, :body, :header)
  request_async(:proppatch, uri, nil, body, header || {})
end

#proxy ⇒ Object

Returns URI object of HTTP proxy if exists.



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# File 'lib/httpclient.rb', line 410

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.



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# File 'lib/httpclient.rb', line 424

def proxy=(proxy)
  if proxy.nil?
    @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.



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# File 'lib/httpclient.rb', line 651

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

#put_async(uri, *args) ⇒ Object

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



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# File 'lib/httpclient.rb', line 764

def put_async(uri, *args)
  body, header = keyword_argument(args, :body, :header)
  request_async(:put, uri, nil, body || '', header || {})
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)



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# File 'lib/httpclient.rb', line 534

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’ => ‘/’ } 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). Bear in mind that some server application does not support chunked request. At least cgi.rb does not support it.



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# File 'lib/httpclient.rb', line 718

def request(method, uri, *args, &block)
  query, body, header, follow_redirect = keyword_argument(args, :query, :body, :header, :follow_redirect)
  if [:post, :put].include?(method)
    body ||= ''
  end
  if method == :propfind
    header ||= PROPFIND_DEFAULT_EXTHEADER
  else
    header ||= {}
  end
  uri = urify(uri)
  if block
    filtered_block = proc { |res, str|
      block.call(str)
    }
  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.



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# File 'lib/httpclient.rb', line 808

def request_async(method, uri, query = nil, body = nil, header = {})
  uri = urify(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.



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# File 'lib/httpclient.rb', line 815

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

#reset_all ⇒ Object

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



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# File 'lib/httpclient.rb', line 821

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)



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# File 'lib/httpclient.rb', line 515

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.



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# File 'lib/httpclient.rb', line 478

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

#set_basic_auth(domain, user, passwd) ⇒ Object

Deprecated. Use set_auth instead.



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# File 'lib/httpclient.rb', line 485

def set_basic_auth(domain, user, passwd)
  uri = urify(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.



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# File 'lib/httpclient.rb', line 506

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.



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# File 'lib/httpclient.rb', line 496

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)



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# File 'lib/httpclient.rb', line 604

def strict_redirect_uri_callback(uri, res)
  newuri = URI.parse(res.header['location'][0])
  if https?(uri) && !https?(newuri)
    raise BadResponseError.new("redirecting to non-https resource")
  end
  unless newuri.is_a?(URI::HTTP)
    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.



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# File 'lib/httpclient.rb', line 676

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

#trace_async(uri, *args) ⇒ Object

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



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# File 'lib/httpclient.rb', line 799

def trace_async(uri, *args)
  query, body, header = keyword_argument(args, :query, :body, :header)
  request_async(:trace, uri, query, body, header || {})
end