Class: LogStash::Outputs::ElasticSearch::HttpClient::ManticoreAdapter

Inherits:
Object
  • Object
show all
Defined in:
lib/logstash/outputs/amazon_es/http_client/manticore_adapter.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(logger, options = {}) ⇒ ManticoreAdapter

Returns a new instance of ManticoreAdapter.



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# File 'lib/logstash/outputs/amazon_es/http_client/manticore_adapter.rb', line 21

def initialize(logger, options={})
  @logger = logger
  options = options.clone || {}
  options[:ssl] = options[:ssl] || {}

  # We manage our own retries directly, so let's disable them here
  options[:automatic_retries] = 0
  # We definitely don't need cookies
  options[:cookies] = false

  @client_params = {:headers => DEFAULT_HEADERS.merge(options[:headers]|| {}),}

  @port =  options[:port] || 9200
  @protocol =  options[:protocol] || 'http'
  @region =   options[:region] || 'us-east-1'
  aws_access_key_id =  options[:aws_access_key_id] || nil
  aws_secret_access_key = options[:aws_secret_access_key] || nil
  session_token = options[:session_token] || nil
  profile = options[:profile] || 'default'
  instance_cred_retries = options[:instance_profile_credentials_retries] || 0
  instance_cred_timeout = options[:instance_profile_credentials_timeout] || 1

  credential_config = CredentialConfig.new(aws_access_key_id, aws_secret_access_key, session_token, profile, instance_cred_retries, instance_cred_timeout, @region)
  @credentials = Aws::CredentialProviderChain.new(credential_config).resolve

  if options[:proxy]
    options[:proxy] = manticore_proxy_hash(options[:proxy])
  end
  
  @manticore = ::Manticore::Client.new(options)
end

Instance Attribute Details

#logger ⇒ Object (readonly)

Returns the value of attribute logger.



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# File 'lib/logstash/outputs/amazon_es/http_client/manticore_adapter.rb', line 19

def logger
  @logger
end

#manticore ⇒ Object (readonly)

Returns the value of attribute manticore.



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# File 'lib/logstash/outputs/amazon_es/http_client/manticore_adapter.rb', line 19

def manticore
  @manticore
end

Instance Method Details

#client ⇒ Object 



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# File 'lib/logstash/outputs/amazon_es/http_client/manticore_adapter.rb', line 64

def client
  @manticore
end

#close ⇒ Object 



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# File 'lib/logstash/outputs/amazon_es/http_client/manticore_adapter.rb', line 158

def close
  @manticore.close
end

#format_url(url, path_and_query = nil) ⇒ Object 



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# File 'lib/logstash/outputs/amazon_es/http_client/manticore_adapter.rb', line 132

def format_url(url, path_and_query=nil)
  request_uri = url.clone
  
  # We excise auth info from the URL in case manticore itself tries to stick
  # sensitive data in a thrown exception or log data
  request_uri.user = nil
  request_uri.password = nil

  return request_uri.to_s if path_and_query.nil?
  
  parsed_path_and_query = java.net.URI.new(path_and_query)
  
  query = request_uri.query
  parsed_query = parsed_path_and_query.query
  
  new_query_parts = [request_uri.query, parsed_path_and_query.query].select do |part|
    part && !part.empty? # Skip empty nil and ""
  end
  
  request_uri.query = new_query_parts.join("&") unless new_query_parts.empty?
  
  request_uri.path = "#{request_uri.path}/#{parsed_path_and_query.path}".gsub(/\/{2,}/, "/")
    
  request_uri
end

#host_unreachable_exceptions ⇒ Object 



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# File 'lib/logstash/outputs/amazon_es/http_client/manticore_adapter.rb', line 162

def host_unreachable_exceptions
  [::Manticore::Timeout,::Manticore::SocketException, ::Manticore::ClientProtocolException, ::Manticore::ResolutionFailure, Manticore::SocketTimeout]
end

#manticore_proxy_hash(proxy_uri) ⇒ Object

Transform the proxy option to a hash. Manticore’s support for non-hash proxy options is broken. This was fixed in github.com/cheald/manticore/commit/34a00cee57a56148629ed0a47c329181e7319af5 but this is not yet released



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# File 'lib/logstash/outputs/amazon_es/http_client/manticore_adapter.rb', line 56

def manticore_proxy_hash(proxy_uri)
  [:scheme, :port, :user, :password, :path].reduce(:host => proxy_uri.host) do |acc,opt|
    value = proxy_uri.send(opt)
    acc[opt] = value unless value.nil? || (value.is_a?(String) && value.empty?)
    acc
  end
end

#perform_request(url, method, path, params = {}, body = nil) ⇒ Response

Performs the request by invoking Transport::Base#perform_request with a block.

Returns:

  • (Response)

See Also:

  • Transport::Base#perform_request


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# File 'lib/logstash/outputs/amazon_es/http_client/manticore_adapter.rb', line 75

def perform_request(url, method, path, params={}, body=nil)
  # Perform 2-level deep merge on the params, so if the passed params and client params will both have hashes stored on a key they
  # will be merged as well, instead of choosing just one of the values
  params = (params || {}).merge(@client_params) { |key, oldval, newval|
    (oldval.is_a?(Hash) && newval.is_a?(Hash)) ? oldval.merge(newval) : newval
  }
  params[:headers] = params[:headers].clone


  params[:body] = body if body

  if url.user
    params[:auth] = { 
      :user => CGI.unescape(url.user),
      # We have to unescape the password here since manticore won't do it
      # for us unless its part of the URL
      :password => CGI.unescape(url.password), 
      :eager => true 
    }
  end

  request_uri = format_url(url, path)

  if @protocol == "https"
    url = URI::HTTPS.build({:host=>URI(request_uri.to_s).host, :port=>@port.to_s, :path=>path})
  else
    url = URI::HTTP.build({:host=>URI(request_uri.to_s).host, :port=>@port.to_s, :path=>path})
  end


  key = Seahorse::Client::Http::Request.new(options={:endpoint=>url, :http_method => method.to_s.upcase,
                                                   :headers => params[:headers],:body => params[:body]})

  aws_signer = Aws::Signers::V4.new(@credentials, 'es', @region )


  signed_key =  aws_signer.sign(key)
  params[:headers] =  params[:headers].merge(signed_key.headers)



  resp = @manticore.send(method.downcase, request_uri.to_s, params)

  # Manticore returns lazy responses by default
  # We want to block for our usage, this will wait for the repsonse
  # to finish
  resp.call
  # 404s are excluded because they are valid codes in the case of
  # template installation. We might need a better story around this later
  # but for our current purposes this is correct
  if resp.code < 200 || resp.code > 299 && resp.code != 404
    raise ::LogStash::Outputs::ElasticSearch::HttpClient::Pool::BadResponseCodeError.new(resp.code, request_uri, body, resp.body)
  end

  resp
end