Class: Papertrail::Connection

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/papertrail/connection.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ Connection

Returns a new instance of Connection.



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# File 'lib/papertrail/connection.rb', line 15

def initialize(options)
  ssl_options = {
    :verify => options.fetch(:verify_ssl) { OpenSSL::SSL::VERIFY_PEER }
  }

  unless (options[:username] && options[:password]) || options[:token]
    raise ArgumentError, "Must provide a username and password or a token"
  end

  # Make Ubuntu OpenSSL work
  #
  # From: https://bugs.launchpad.net/ubuntu/+source/openssl/+bug/396818
  # "[OpenSSL] does not presume to select a set of CAs by default."
  if File.file?('/etc/ssl/certs/ca-certificates.crt')
    ssl_options[:ca_file] = '/etc/ssl/certs/ca-certificates.crt'
  end

  @connection = Papertrail::HttpClient.new(ssl_options).tap do |conn|
    if options[:username] && options[:password]
      conn.basic_auth(options[:username], options[:password])
    else
      conn.token_auth(options[:token])
    end
  end
end

Instance Attribute Details

#connection ⇒ Object (readonly)

Returns the value of attribute connection.



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# File 'lib/papertrail/connection.rb', line 11

def connection
  @connection
end

Instance Method Details

#create_group(name, system_wildcard = nil) ⇒ Object 



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# File 'lib/papertrail/connection.rb', line 107

def create_group(name, system_wildcard = nil)
  group = { :group => { :name => name } }
  if system_wildcard
    group[:group][:system_wildcard] = system_wildcard
  end
  @connection.post("groups.json", group)
end

#each_event(query_term = nil, options = {}, &block) ⇒ Object 



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# File 'lib/papertrail/connection.rb', line 181

def each_event(query_term = nil, options = {}, &block)
  # If there was no query but there were options, shuffle around
  # the parameters
  if query_term.is_a?(Hash)
    options, query_term = query_term, nil
  end

  # Remove all of the options that shouldn't be in each query
  options  = { :tail => false }.merge(options)
  min_id   = options.delete(:min_id)
  max_id   = options.delete(:max_id)
  min_time = options.delete(:min_time)
  max_time = options.delete(:max_time)

  # Figure out where to start querying
  if min_id
    search = search_query(query_term, options.merge(:min_id => min_id))
  elsif min_time
    search = search_query(query_term, options.merge(:min_time => min_time.to_i))
  else
    raise ArgumentError, "Either :min_id or :min_time must be specified"
  end

  # Start processing events
  loop do
    search_results = search.next_results_page
    search_results.events.each do |event|
      # If we've found an event beyond what we were looking for, we're done
      break if max_time && event.received_at > max_time
      break if max_id && event.id > max_id

      block.call(event)
    end

    # If we've found the end of what we're looking for, we're done
    break if max_time && search_results.max_time_at > max_time
    break if max_id && search_results.max_id > max_id

    # If we've reached the most current log message, we're done
    break if search_results.reached_end?
  end

  nil
end

#find_id_for_group(name) ⇒ Object 



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# File 'lib/papertrail/connection.rb', line 60

def find_id_for_group(name)
  response = @connection.get('groups.json', :group_name => name)
  find_id_for_item(response.body, name)
end

#find_id_for_item(items, name_wanted) ⇒ Object 



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# File 'lib/papertrail/connection.rb', line 98

def find_id_for_item(items, name_wanted)
  item = find_item_by_name(items, name_wanted)
  if item
    return item['id']
  end

  return nil
end

#find_id_for_source(name) ⇒ Object 



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# File 'lib/papertrail/connection.rb', line 54

def find_id_for_source(name)
  response = @connection.get('systems.json', :system_name => name)

  find_id_for_item(response.body, name)
end

#find_item_by_name(items, name_wanted) ⇒ Object 



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# File 'lib/papertrail/connection.rb', line 94

def find_item_by_name(items, name_wanted)
  find_items_by_name(items, name_wanted).first
end

#find_items_by_name(items, name_wanted) ⇒ Object 



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# File 'lib/papertrail/connection.rb', line 80

def find_items_by_name(items, name_wanted)
  results = []

  items.each do |item|
    results << item if item['name'] == name_wanted
  end

  items.each do |item|
    results << item if item['name'] =~ /#{Regexp.escape(name_wanted)}/i
  end

  results
end

#find_search(name, group_id = nil) ⇒ Object 



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# File 'lib/papertrail/connection.rb', line 65

def find_search(name, group_id = nil)
  response = @connection.get('searches.json', :search_name => name)

  candidates = find_items_by_name(response.body, name)
  return nil if candidates.empty?

  candidates.each do |item|
    if !group_id || group_id == item['group_id']
      return item
    end
  end

  return candidates.first
end

#finish ⇒ Object 



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# File 'lib/papertrail/connection.rb', line 50

def finish
  @connection.finish
end

#join_group(source_name, group_name) ⇒ Object 



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# File 'lib/papertrail/connection.rb', line 127

def join_group(source_name, group_name)
  source_id = find_id_for_source(source_name)
  group_id = find_id_for_group(group_name)
  if source_id && group_id
    @connection.post("systems/#{source_id}/join.json", :group_id => group_id)
  end
end

#leave_group(source_name, group_name) ⇒ Object 



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# File 'lib/papertrail/connection.rb', line 135

def leave_group(source_name, group_name)
  source_id = find_id_for_source(source_name)
  group_id = find_id_for_group(group_name)
  if source_id && group_id
    @connection.post("systems/#{source_id}/leave.json", :group_id => group_id)
  end
end

#register_source(name, *args) ⇒ Object 



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# File 'lib/papertrail/connection.rb', line 143

def register_source(name, *args)
  options = args.last.is_a?(Hash) ? args.pop.dup : {}

  if ip_address = args.shift
    options[:ip_address] = ip_address
  end

  if hostname = args.shift
    options[:hostname] = hostname
  end

  request = {
    :system => {
      :name => name
    }
  }

  if options[:ip_address]
    request[:system][:ip_address] = options[:ip_address]
  end

  if options[:hostname]
    request[:system][:hostname] = options[:hostname]
  end

  if options[:destination_port]
    request[:destination_port] = options[:destination_port]
  end

  @connection.post("systems.json", request)
end

#show_group(name) ⇒ Object 



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# File 'lib/papertrail/connection.rb', line 115

def show_group(name)
  if id = find_id_for_group(name)
    @connection.get("groups/#{id}.json").body
  end
end

#show_source(name) ⇒ Object 



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# File 'lib/papertrail/connection.rb', line 121

def show_source(name)
  if id = find_id_for_source(name)
    @connection.get("systems/#{id}.json").body
  end
end

#start ⇒ Object 



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# File 'lib/papertrail/connection.rb', line 41

def start
  if block_given?
    @connection.start { yield self }
  else
    @connection.start
    self
  end
end

#unregister_source(name) ⇒ Object 



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# File 'lib/papertrail/connection.rb', line 175

def unregister_source(name)
  if source_id = find_id_for_source(name)
    @connection.delete("systems/#{source_id}.json")
  end
end