Class: QingStor::SDK::Preprocessor

Inherits:
Object
  • Object
show all
Defined in:
lib/qingstor/sdk/request/preprocessor.rb

Class Method Summary collapse

Class Method Details

.compact(object) ⇒ Object 



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# File 'lib/qingstor/sdk/request/preprocessor.rb', line 145

def self.compact(object)
  object.each do |k, v|
    object[k] = compact v if v.is_a? Hash
    object.delete k if v.nil? || v == '' || v == []
  end
  object
end

.decorate_input(input) ⇒ Object 



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# File 'lib/qingstor/sdk/request/preprocessor.rb', line 139

def self.decorate_input(input)
  input.deep_symbolize_keys!
  input[:id] = (Random.new.rand * 1_000_000).to_int
  compact input
end

.escape(origin) ⇒ Object 



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# File 'lib/qingstor/sdk/request/preprocessor.rb', line 153

def self.escape(origin)
  origin = CGI.escape origin
  origin.gsub! '%2F', '/'
  origin.gsub! '%3D', '='
  origin.gsub! '+', '%20'
  origin
end

.preprocess(input) ⇒ Object 



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# File 'lib/qingstor/sdk/request/preprocessor.rb', line 27

def self.preprocess(input)
  input                    = decorate_input input
  input[:request_endpoint] = request_endpoint input
  input[:request_uri]      = request_uri input
  input[:request_body]     = request_body input
  input[:request_headers]  = request_headers input
  input[:request_params]   = request_params input

  display = {}
  input.each { |k, v| display[k] = v unless k.to_s == 'request_body' }
  Logger.info "Preprocess QingStor request: [#{input[:id]}] #{display}"
  input
end

.request_body(input) ⇒ Object 



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# File 'lib/qingstor/sdk/request/preprocessor.rb', line 60

def self.request_body(input)
  body = input[:request_body]
  body = body.is_a?(File) ? body.read : body
  return body if body

  if input[:request_elements] && !input[:request_elements].empty?
    json_body = JSON.generate input[:request_elements]
    Logger.info "QingStor request json: [#{input[:id]}] #{json_body}"
    json_body
  end
end

.request_endpoint(input) ⇒ Object 



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# File 'lib/qingstor/sdk/request/preprocessor.rb', line 41

def self.request_endpoint(input)
  config = input[:config]
  zone = input[:properties] ? input[:properties][:zone] : nil
  if zone
    "#{config[:protocol]}://#{zone}.#{config[:host]}:#{config[:port]}"
  else
    "#{config[:protocol]}://#{config[:host]}:#{config[:port]}"
  end
end

.request_headers(input) ⇒ Object 



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# File 'lib/qingstor/sdk/request/preprocessor.rb', line 72

def self.request_headers(input)
  unless input[:request_headers][:Date]
    input[:request_headers][:Date] = Time.now.utc.strftime '%a, %d %b %Y %H:%M:%S GMT'
  end
  if !input[:request_headers][:'Content-Length'] && input[:request_body]
    input[:request_headers][:'Content-Length'] = input[:request_body].length
  end
  if input[:request_method] == 'POST' ||
     input[:request_method] == 'PUT' ||
     input[:request_method] == 'DELETE'
    unless input[:request_headers][:'Content-Type']
      if input[:request_elements] && !input[:request_elements].empty?
        input[:request_headers][:'Content-Type'] = 'application/json'
      else
        input[:request_headers][:'Content-Type'] = MimeMagic.by_path input[:request_uri]
      end
    end
  end
  unless input[:request_headers][:'Content-Type']
    input[:request_headers][:'Content-Type'] = 'application/octet-stream'
  end
  unless input[:request_headers][:'User-Agent']
    ua = "qingstor-sdk-ruby/#{QingStor::SDK::VERSION} (Ruby v#{RUBY_VERSION}; #{RUBY_PLATFORM})"
    if input[:config][:additional_user_agent] && !input[:config][:additional_user_agent].empty?
      ua = "#{ua} #{input[:config][:additional_user_agent]}"
    end
    input[:request_headers][:'User-Agent'] = ua
  end

  if input[:api_name] == 'Delete Multiple Objects'
    input[:request_headers][:'Content-MD5'] = Base64.encode64(Digest::MD5.digest(input[:request_body])).strip
  end

  unless input[:request_headers][:'X-QS-MetaData'].nil?
    if input[:request_headers][:'X-QS-MetaData'].is_a?(Hash) && !input[:request_headers][:'X-QS-MetaData'].empty?
      prefix = 'x-qs-meta-'
      input[:request_headers][:'X-QS-MetaData'].each do |k, v|
        k = k.to_s
        # check whether meta header has prefix
        if k.downcase.start_with? prefix
          suffix_len = prefix.size - k.size
          k = prefix + k[suffix_len, -suffix_len]
        else
          k = prefix + k
        end
        input[:request_headers][:"#{k}"] = v
      end
    end
    input[:request_headers].delete :'X-QS-MetaData'
  end

  input[:request_headers].map do |k, v|
    input[:request_headers][k] = escape v.to_s unless v.to_s.ascii_only?
  end

  input[:request_headers]
end

.request_params(input) ⇒ Object 



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# File 'lib/qingstor/sdk/request/preprocessor.rb', line 130

def self.request_params(input)
  unless input[:request_params].nil?
    input[:request_params].map do |k, v|
      input[:request_params][k] = escape v.to_s
    end
  end
  input[:request_params]
end

.request_uri(input) ⇒ Object 



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# File 'lib/qingstor/sdk/request/preprocessor.rb', line 51

def self.request_uri(input)
  unless input[:properties].nil?
    input[:properties].each do |k, v|
      input[:request_uri].gsub! "<#{k}>", (escape v.to_s)
    end
  end
  input[:request_uri]
end