module Fog::Radosgw::Utils

# File lib/fog/radosgw/utils.rb, line 4
def configure_uri_options(options = {})
  @host       = options[:host]       || 'localhost'
  @persistent = options[:persistent] || true
  @port       = options[:port]       || 8080
  @scheme     = options[:scheme]     || 'http'
end

# File lib/fog/radosgw/utils.rb, line 15
def escape(string)
  string.gsub(/([^a-zA-Z0-9_.\-~]+)/) {
    "%" + $1.unpack("H2" * $1.bytesize).join("%").upcase
  }
end

# File lib/fog/radosgw/utils.rb, line 11
def radosgw_uri
  "#{@scheme}://#{@host}:#{@port}"
end

# File lib/fog/radosgw/utils.rb, line 21
def signature(params, expires)
  headers = params[:headers] || {}

  string_to_sign = [
    params[:method].to_s.upcase,
    headers['Content-MD5'],
    headers['Content-Type'],
    expires].map(&:to_s).join("\n") + "\n"

  amz_headers, canonical_amz_headers = {}, ''
  for key, value in headers
    if key[0..5] == 'x-amz-'
      amz_headers[key] = value
    end
  end
  amz_headers = amz_headers.sort {|x, y| x[0] <=> y[0]}
  for key, value in amz_headers
    canonical_amz_headers << "#{key}:#{value}\n"
  end
  string_to_sign << canonical_amz_headers


  query_string = ''
  if params[:query]
    query_args = []
    for key in params[:query].keys.sort
      if VALID_QUERY_KEYS.include?(key)
        value = params[:query][key]
        if value
          query_args << "#{key}=#{value}"
        else
          query_args << key
        end
      end
    end
    if query_args.any?
      query_string = '?' + query_args.join('&')
    end
  end

  canonical_path = (params[:path] || object_to_path(params[:object_name])).to_s
  canonical_path = '/' + canonical_path if canonical_path[0..0] != '/'
  if params[:bucket_name]
    canonical_resource = "/#{params[:bucket_name]}#{canonical_path}"
  else
    canonical_resource = canonical_path
  end
  canonical_resource << query_string
  string_to_sign << canonical_resource

  hmac = Fog::HMAC.new('sha1', @radosgw_secret_access_key)
  signed_string = hmac.sign(string_to_sign)
  Base64.encode64(signed_string).chomp!
end

# File lib/fog/radosgw/utils.rb, line 76
def signed_headers(params)
  expires = Fog::Time.now.to_date_header
  auth   =  signature(params,expires)
  awskey =  @radosgw_access_key_id
  headers = {
      'Date'          => expires,
      'Authorization' => "AWS #{awskey}:#{auth}"
  }
end