Class: CryptKeeperHttp

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

Constant Summary collapse

GET =

Request Types

"GET"
PUT = 
"PUT"
POST = 
"POST"
HEAD = 
"HEAD"
DELETE = 
"DELETE"

Instance Method Summary collapse

Constructor Details

#initialize(address, access_key, secret_key, signature_id) ⇒ CryptKeeperHttp

Returns a new instance of CryptKeeperHttp.



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# File 'lib/crypt_keeper_http.rb', line 13

def initialize(address, access_key, secret_key, signature_id)
  @address = address
  @access_key = access_key
  @secret_key = secret_key
  @signature_id = signature_id
end

Instance Method Details

#delete(path, bucket_name, additional_headers = {}) ⇒ Object 



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# File 'lib/crypt_keeper_http.rb', line 35

def delete(path, bucket_name, additional_headers={})
  request(DELETE, path, bucket_name, nil, additional_headers)
end

#get(path, bucket_name = '', additional_headers = {}) ⇒ Object 



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# File 'lib/crypt_keeper_http.rb', line 27

def get(path, bucket_name='', additional_headers={})
  request(GET, path, bucket_name, nil, additional_headers)
end

#put(path, bucket_name = '', body = nil, additional_headers = {}) ⇒ Object 



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# File 'lib/crypt_keeper_http.rb', line 31

def put(path, bucket_name='', body=nil, additional_headers={})
  request(PUT, path, bucket_name, body, additional_headers)
end

#request(type, path, bucket_name = '', body = nil, additional_headers = {}) ⇒ Object 



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# File 'lib/crypt_keeper_http.rb', line 39

def request(type, path, bucket_name='', body=nil, additional_headers={})
  body.rewind if body && body.respond_to?(:rewind)
  bucket_name = "#{bucket_name}." if !bucket_name.empty?

  res = nil
  Net::HTTP.start(@address) do |http|
    req = Net::HTTP.const_get(type.capitalize).new(path)

    content_md5 = ''
    content_type = ''
    x_headers = ''

    if !additional_headers.empty?
      additional_headers.each do |k, v|
        req.add_field(k, v)
        x_headers << "#{k}:#{v}\n" if k[0..5] == "x-goog"
        if type==PUT
          case k
            when 'Content-MD5'
              content_md5 = v
            when 'Content-Type'
              content_type = v
          end
        end
      end
    end

    content_length = 0
    if body
      if body.respond_to? :lstat
        content_length = body.stat.size
        req.body_stream = body
      else
        content_length = body.size
        req.body = body
      end
    end

    time = Time.now.strftime("%a, %d %b %Y %H:%M:%S %z")

    sig_path = !bucket_name.empty? ? "/#{bucket_name.gsub(/[\.]$/, path.gsub(/\?.*$/, ''))}" : "/"
    req.add_field('Host', "#{bucket_name}#{@address}")
    req.add_field('Date', time)
    req.add_field('Content-length', content_length)
    sig = "#{type}\n#{content_md5}\n#{content_type}\n#{time}\n#{x_headers}#{sig_path}"
    req.add_field('Authorization', "#{@signature_id} #{@access_key}:#{signature(sig)}")

    res = http.request(req)
  end
  res ? res.body : nil
end

#signature(message) ⇒ Object 



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# File 'lib/crypt_keeper_http.rb', line 20

def signature(message)
  utf8_message = message.unpack("C*").pack("U*")
  utf8_key = @secret_key.unpack("C*").pack("U*")
  sha1 = HMAC::SHA1.digest(utf8_key, utf8_message)
  Base64.encode64(sha1).strip
end