Class: Mongrel::HeaderOut

Inherits:
Object
  • Object
show all
Defined in:
lib/mongrel/header_out.rb

Overview

This class implements a simple way of constructing the HTTP headers dynamically via a Hash syntax. Think of it as a write-only Hash. Refer to HttpResponse for information on how this is used.

One consequence of this write-only nature is that you can write multiple headers by just doing them twice (which is sometimes needed in HTTP), but that the normal semantics for Hash (where doing an insert replaces) is not there.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(out) ⇒ HeaderOut

Returns a new instance of HeaderOut.



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# File 'lib/mongrel/header_out.rb', line 13

def initialize(out)
  @sent = {}
  @allowed_duplicates = {"Set-Cookie" => true, "Set-Cookie2" => true,
    "Warning" => true, "WWW-Authenticate" => true}
  @out = out
end

Instance Attribute Details

#allowed_duplicates ⇒ Object

Returns the value of attribute allowed_duplicates.



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# File 'lib/mongrel/header_out.rb', line 11

def allowed_duplicates
  @allowed_duplicates
end

#out ⇒ Object (readonly)

Returns the value of attribute out.



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# File 'lib/mongrel/header_out.rb', line 10

def out
  @out
end

Instance Method Details

#[]=(key, value) ⇒ Object

Simply writes “#key: #value” to an output buffer.



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# File 'lib/mongrel/header_out.rb', line 21

def[]=(key,value)
  if not @sent.has_key?(key) or @allowed_duplicates.has_key?(key)
    @sent[key] = true
    @out.write(Const::HEADER_FORMAT % [key, value])
  end
end