Class: HTTPClient::Session

Inherits:
Object
  • Object
show all
Includes:
Timeout, Util
Defined in:
lib/httpclient.rb,
lib/httpclient/session.rb

Overview

Manages a HTTP session with a Site.

Direct Known Subclasses

HTTPAccess2::Session

Constant Summary collapse

BadResponse = 
::HTTPClient::BadResponseError

Instance Attribute 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

Methods included from Timeout

#timeout

Constructor Details

#initialize(client, dest, agent_name, from) ⇒ Session

Returns a new instance of Session.



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# File 'lib/httpclient/session.rb', line 567

def initialize(client, dest, agent_name, from)
  @client = client
  @dest = dest
  @invalidated = false
  @proxy = nil
  @socket_sync = true
  @requested_version = nil

  @debug_dev = nil

  @connect_timeout = nil
  @connect_retry = 1
  @send_timeout = nil
  @receive_timeout = nil
  @read_block_size = nil
  @protocol_retry_count = 5

  @ssl_config = nil
  @ssl_peer_cert = nil

  @test_loopback_http_response = nil
  @socket_local = Site::EMPTY

  @agent_name = agent_name
  @from = from
  @state = :INIT

  @requests = []

  @status = nil
  @reason = nil
  @headers = []

  @socket = nil
  @readbuf = nil

  @transparent_gzip_decompression = false
  @last_used = nil
end

Instance Attribute Details

#connect_retry ⇒ Object

Returns the value of attribute connect_retry.



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# File 'lib/httpclient/session.rb', line 552

def connect_retry
  @connect_retry
end

#connect_timeout ⇒ Object

Returns the value of attribute connect_timeout.



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# File 'lib/httpclient/session.rb', line 551

def connect_timeout
  @connect_timeout
end

#debug_dev ⇒ Object

Device for dumping log for debugging



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# File 'lib/httpclient/session.rb', line 549

def debug_dev
  @debug_dev
end

#dest ⇒ Object (readonly)

Destination site



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# File 'lib/httpclient/session.rb', line 541

def dest
  @dest
end

#last_used ⇒ Object (readonly)

Returns the value of attribute last_used.



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# File 'lib/httpclient/session.rb', line 565

def last_used
  @last_used
end

#protocol_retry_count ⇒ Object

Returns the value of attribute protocol_retry_count.



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# File 'lib/httpclient/session.rb', line 556

def protocol_retry_count
  @protocol_retry_count
end

#proxy ⇒ Object

Proxy site



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# File 'lib/httpclient/session.rb', line 543

def proxy
  @proxy
end

#read_block_size ⇒ Object

Returns the value of attribute read_block_size.



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# File 'lib/httpclient/session.rb', line 555

def read_block_size
  @read_block_size
end

#receive_timeout ⇒ Object

Returns the value of attribute receive_timeout.



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# File 'lib/httpclient/session.rb', line 554

def receive_timeout
  @receive_timeout
end

#requested_version ⇒ Object

Requested protocol version



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# File 'lib/httpclient/session.rb', line 547

def requested_version
  @requested_version
end

#send_timeout ⇒ Object

Returns the value of attribute send_timeout.



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# File 'lib/httpclient/session.rb', line 553

def send_timeout
  @send_timeout
end

#socket_local ⇒ Object

Returns the value of attribute socket_local.



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# File 'lib/httpclient/session.rb', line 558

def socket_local
  @socket_local
end

#socket_sync ⇒ Object

Boolean value for Socket#sync



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# File 'lib/httpclient/session.rb', line 545

def socket_sync
  @socket_sync
end

#ssl_config ⇒ Object

Returns the value of attribute ssl_config.



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# File 'lib/httpclient/session.rb', line 560

def ssl_config
  @ssl_config
end

#ssl_peer_cert ⇒ Object (readonly)

Returns the value of attribute ssl_peer_cert.



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# File 'lib/httpclient/session.rb', line 561

def ssl_peer_cert
  @ssl_peer_cert
end

#test_loopback_http_response ⇒ Object

Returns the value of attribute test_loopback_http_response.



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# File 'lib/httpclient/session.rb', line 562

def test_loopback_http_response
  @test_loopback_http_response
end

#transparent_gzip_decompression ⇒ Object

Returns the value of attribute transparent_gzip_decompression.



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# File 'lib/httpclient/session.rb', line 564

def transparent_gzip_decompression
  @transparent_gzip_decompression
end

Instance Method Details

#close ⇒ Object 



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

def close
  if !@socket.nil? and !@socket.closed?
    # @socket.flush may block when it the socket is already closed by
    # foreign host and the client runs under MT-condition.
    @socket.close
  end
  @state = :INIT
end

#closed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/httpclient/session.rb', line 650

def closed?
  @state == :INIT
end

#eof? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/httpclient/session.rb', line 675

def eof?
  if !@content_length.nil?
    @content_length == 0
  else
    @socket.closed? or @socket.eof?
  end
end

#get_body(&block) ⇒ Object 



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# File 'lib/httpclient/session.rb', line 683

def get_body(&block)
  begin
    read_header if @state == :META
    return nil if @state != :DATA
    if @gzipped and @transparent_gzip_decompression
      # zlib itself has a functionality to decompress gzip stream.
      # - zlib 1.2.5 Manual
      #   http://www.zlib.net/manual.html#Advanced
      # > windowBits can also be greater than 15 for optional gzip decoding. Add 32 to
      # > windowBits to enable zlib and gzip decoding with automatic header detection,
      # > or add 16 to decode only the gzip format
      inflate_stream = Zlib::Inflate.new(Zlib::MAX_WBITS + 32)
      original_block = block
      block = Proc.new { |buf|
        original_block.call(inflate_stream.inflate(buf))
      }
    end
    if @chunked
      read_body_chunked(&block)
    elsif @content_length
      read_body_length(&block)
    else
      read_body_rest(&block)
    end
  rescue
    close
    raise
  end
  if eof?
    if @next_connection
      @state = :WAIT
    else
      close
    end
  end
  nil
end

#get_header ⇒ Object 



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# File 'lib/httpclient/session.rb', line 662

def get_header
  begin
    if @state != :META
      raise RuntimeError.new("get_status must be called at the beginning of a session")
    end
    read_header
  rescue
    close
    raise
  end
  [@version, @status, @reason, @headers]
end

#invalidate ⇒ Object 



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# File 'lib/httpclient/session.rb', line 654

def invalidate
  @invalidated = true
end

#invalidated? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/httpclient/session.rb', line 658

def invalidated?
  @invalidated
end

#query(req) ⇒ Object

Send a request to the server



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# File 'lib/httpclient/session.rb', line 608

def query(req)
  connect if @state == :INIT
  # Use absolute URI (not absolute path) iif via proxy AND not HTTPS.
  req.header.request_absolute_uri = !@proxy.nil? && !https?(@dest)
  begin
    timeout(@send_timeout, SendTimeoutError) do
      set_header(req)
      req.dump(@socket)
      # flush the IO stream as IO::sync mode is false
      @socket.flush unless @socket_sync
    end
  rescue Errno::ECONNABORTED, Errno::ECONNRESET, Errno::EPIPE, IOError
    # JRuby can raise IOError instead of ECONNRESET for now
    close
    raise KeepAliveDisconnected.new(self, $!)
  rescue HTTPClient::TimeoutError
    close
    raise
  rescue
    close
    if SSLEnabled and $!.is_a?(OpenSSL::SSL::SSLError)
      raise KeepAliveDisconnected.new(self, $!)
    else
      raise
    end
  end

  @state = :META if @state == :WAIT
  @next_connection = nil
  @requests.push(req)
  @last_used = Time.now
end