Class: Wsv::Response

Inherits:
Object
  • Object
show all
Defined in:
lib/wsv/response.rb

Constant Summary collapse

SERVER_NAME = 
"wsv/#{Wsv::VERSION}".freeze
INVALID_HEADER_NAME = 
/[\s:]/
INVALID_HEADER_VALUE = 
/[\r\n]/

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(status:, headers: {}, body: "") ⇒ Response

Returns a new instance of Response.



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# File 'lib/wsv/response.rb', line 17

def initialize(status:, headers: {}, body: "")
  headers.each do |name, value|
    raise ArgumentError, "invalid header name: #{name.inspect}" if name.to_s.match?(INVALID_HEADER_NAME)
    raise ArgumentError, "invalid header value: #{value.inspect}" if value.to_s.match?(INVALID_HEADER_VALUE)
  end
  @status = status
  @headers = headers
  @body = body
end

Instance Attribute Details

#body ⇒ Object (readonly)

Returns the value of attribute body.



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# File 'lib/wsv/response.rb', line 15

def body
  @body
end

#headers ⇒ Object (readonly)

Returns the value of attribute headers.



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# File 'lib/wsv/response.rb', line 15

def headers
  @headers
end

#status ⇒ Object (readonly)

Returns the value of attribute status.



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# File 'lib/wsv/response.rb', line 15

def status
  @status
end

Class Method Details

.file(path, head: false) ⇒ Object 



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# File 'lib/wsv/response.rb', line 50

def self.file(path, head: false)
  new(
    status: 200,
    headers: {
      "Content-Type" => MimeTypes.for_file(path),
      "Content-Length" => File.size(path).to_s,
      "Last-Modified" => File.mtime(path).httpdate,
      "Cache-Control" => "no-cache"
    },
    body: head ? "" : File.binread(path)
  )
end

.redirect(location, head: false) ⇒ Object 



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# File 'lib/wsv/response.rb', line 63

def self.redirect(location, head: false)
  text(301, headers: { "Location" => location }, head: head)
end

.text(status, headers: {}, head: false) ⇒ Object 



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# File 'lib/wsv/response.rb', line 40

def self.text(status, headers: {}, head: false)
  body = "#{status} #{Status.reason(status)}\n"
  base = {
    "Content-Type" => "text/plain; charset=utf-8",
    "Content-Length" => body.bytesize.to_s,
    "Cache-Control" => "no-cache"
  }
  new(status: status, headers: base.merge(headers), body: head ? "" : body)
end

Instance Method Details

#reason ⇒ Object 



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# File 'lib/wsv/response.rb', line 27

def reason
  Status.reason(status)
end

#write_to(io) ⇒ Object 



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# File 'lib/wsv/response.rb', line 31

def write_to(io)
  io.write "HTTP/1.1 #{status} #{reason}\r\n"
  io.write "Server: #{SERVER_NAME}\r\n"
  io.write "Connection: close\r\n"
  headers.each { |name, value| io.write "#{name}: #{value}\r\n" }
  io.write "\r\n"
  io.write body
end