Module: HTTP2

Defined in:
lib/http/2/header/huffman_statemachine.rb,
lib/http/2.rb,
lib/http/2/error.rb,
lib/http/2/base64.rb,
lib/http/2/client.rb,
lib/http/2/framer.rb,
lib/http/2/header.rb,
lib/http/2/server.rb,
lib/http/2/stream.rb,
lib/http/2/emitter.rb,
lib/http/2/version.rb,
lib/http/2/settings.rb,
lib/http/2/connection.rb,
lib/http/2/extensions.rb,
lib/http/2/flow_buffer.rb,
lib/http/2/header/huffman.rb,
lib/http/2/header/compressor.rb,
lib/http/2/header/decompressor.rb,
lib/http/2/header/encoding_context.rb,
sig/2.rbs,
sig/error.rbs,
sig/client.rbs,
sig/framer.rbs,
sig/header.rbs,
sig/server.rbs,
sig/stream.rbs,
sig/emitter.rbs,
sig/connection.rbs,
sig/extensions.rbs,
sig/flow_buffer.rbs,
sig/frame_buffer.rbs,
sig/header/huffman.rbs,
sig/header/compressor.rbs,
sig/header/decompressor.rbs,
sig/header/encoding_context.rbs

Overview

The following task generates this file. rake generate_huffman_table

Defined Under Namespace

Modules: Base64, BufferUtils, Emitter, Error, FlowBuffer, Header, PackingExtensions Classes: Client, Connection, FrameBuffer, Framer, Server, Settings, Stream

Constant Summary collapse

EMPTY =

Returns:

  • ([]) 
[].freeze
END_STREAM =

Frame flags

Returns:

  • (Integer) 
ACK = 0b0001
RESERVED =

1

Returns:

  • (Integer) 
0b0010
END_HEADERS =

2

Returns:

  • (Integer) 
0b0100
PADDED =

4

Returns:

  • (Integer) 
0b1000
PRIORITY =

8

Returns:

  • (Integer) 
0b0010_0000
VERSION =

Returns:

  • (String) 
"1.2.2"
SPEC_DEFAULT_CONNECTION_SETTINGS =

Default values for SETTINGS frame, as defined by the spec.

Returns:

  • (settings_hash) 
{
  settings_header_table_size: 4096,
  settings_enable_push: 1, # enabled for servers
  settings_max_concurrent_streams: Framer::MAX_STREAM_ID, # unlimited
  settings_initial_window_size: 65_535,
  settings_max_frame_size: 16_384,
  settings_max_header_list_size: (2 << 30) - 1 # unlimited
}.freeze
DEFAULT_FLOW_WINDOW =

Default connection and stream flow control window (64KB).

Returns:

  • (Integer) 
65_535
DEFAULT_HEADER_SIZE =

Default header table size

Returns:

  • (Integer) 
4096
DEFAULT_MAX_CONCURRENT_STREAMS =

Default stream_limit

Returns:

  • (Integer) 
100
DEFAULT_CONNECTION_SETTINGS =

Returns:

  • (settings_hash) 
{
  settings_header_table_size: 4096,
  settings_enable_push: 1, # enabled for servers
  settings_max_concurrent_streams: 100,
  settings_initial_window_size: 65_535,
  settings_max_frame_size: 16_384,
  settings_max_header_list_size: (2 << 30) - 1 # unlimited
}.freeze
DEFAULT_WEIGHT =

Default stream priority (lower values are higher priority).

Returns:

  • (Integer) 
16
CONNECTION_PREFACE_MAGIC =

Default connection "fast-fail" preamble string as defined by the spec.

Returns:

  • (String) 
"PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"
REQUEST_MANDATORY_HEADERS =

Returns:

  • (Array[String]) 
%w[:scheme :method :authority :path].freeze
RESPONSE_MANDATORY_HEADERS =

Returns:

  • (Array[String]) 
%w[:status].freeze
CONNECTION_FRAME_TYPES = 
%i[settings ping goaway].freeze
STREAM_OPEN_STATES = 
%i[open half_closed_local].freeze
ACK =

Returns:

  • (Integer) 

      
    

  







  
    

      Instance Method Summary
      collapse
    


    
    
  



  

    
Instance Method Details


    
      

  

  
    #urlsafe_decode64(str)  ⇒ Object 
  

  

  


  

    
      


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# File 'lib/http/2/base64.rb', line 35

def urlsafe_decode64(str)
  if !str.end_with?("=") && str.length % 4 != 0
    str = str.ljust((str.length + 3) & ~3, "=")
    str.tr!("-_", "+/")
  else
    str = str.tr("-_", "+/")
  end
  strict_decode64(str)
end