Class: Protocol::HTTP::Body::Digestable

Inherits:
Wrapper show all
Defined in:
lib/protocol/http/body/digestable.rb

Overview

Invokes a callback once the body has finished reading.

Instance Attribute Summary

Attributes inherited from Wrapper

#body

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Wrapper

#call, #close, #empty?, #finish, #inspect, #length, #ready?

Methods inherited from Readable

#call, #close, #each, #empty?, #finish, #join, #length, #ready?

Constructor Details

#initialize(body, digest = Digest::SHA256.new, callback = nil) ⇒ Digestable

Returns a new instance of Digestable.



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# File 'lib/protocol/http/body/digestable.rb', line 22

def initialize(body, digest = Digest::SHA256.new, callback = nil)
  super(body)
  
  @digest = digest
  @callback = callback
end

Class Method Details

.wrap(message, digest = Digest::SHA256.new, &block) ⇒ Object 



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# File 'lib/protocol/http/body/digestable.rb', line 15

def self.wrap(message, digest = Digest::SHA256.new, &block)
  if body = message&.body and !body.empty?
    message.body = self.new(message.body, digest, block)
  end
end

Instance Method Details

#digest ⇒ Object 



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# File 'lib/protocol/http/body/digestable.rb', line 29

def digest
  @digest
end

#etag(weak: false) ⇒ Object 



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# File 'lib/protocol/http/body/digestable.rb', line 33

def etag(weak: false)
  if weak
    "W/\"#{digest.hexdigest}\""
  else
    "\"#{digest.hexdigest}\""
  end
end

#read ⇒ Object 



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# File 'lib/protocol/http/body/digestable.rb', line 45

def read
  if chunk = super
    @digest.update(chunk)
    
    return chunk
  else
    @callback&.call(self)
    
    return nil
  end
end

#stream? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/protocol/http/body/digestable.rb', line 41

def stream?
  false
end