/
http_logger.rb
217 lines (184 loc) · 5.21 KB
/
http_logger.rb
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require 'net/http'
require 'uri'
require 'set'
# Usage:
#
# require 'http_logger'
#
# == Setup logger
#
# HttpLogger.logger = Logger.new('/tmp/all.log')
# HttpLogger.log_headers = true
#
# == Do request
#
# res = Net::HTTP.start(url.host, url.port) { |http|
# http.request(req)
# }
# ...
#
# == View the log
#
# cat /tmp/all.log
class HttpLogger
class << self
attr_accessor :collapse_body_limit
attr_accessor :log_headers
attr_accessor :log_request_body
attr_accessor :log_response_body
attr_accessor :logger
attr_accessor :colorize
attr_accessor :ignore
attr_accessor :level
end
self.log_headers = false
self.log_request_body = true
self.log_response_body = true
self.colorize = true
self.collapse_body_limit = 5000
self.ignore = []
self.level = :debug
def self.perform(*args, &block)
instance.perform(*args, &block)
end
def self.instance
@instance ||= HttpLogger.new
end
def self.deprecate_config(option)
warn "Net::HTTP.#{option} is deprecated. Use HttpLogger.#{option} instead."
end
def perform(http, request, request_body)
start_time = Time.now
response = yield
ensure
if require_logging?(http, request)
log_request_url(http, request, start_time)
log_request_body(request)
log_request_headers(request)
if defined?(response) && response
log_response_code(response)
log_response_headers(response)
log_response_body(response.body)
end
end
end
protected
def log_request_url(http, request, start_time)
ofset = Time.now - start_time
log("HTTP #{request.method} (%0.2fms)" % (ofset * 1000), request_url(http, request))
end
def request_url(http, request)
URI.decode("http#{"s" if http.use_ssl?}://#{http.address}:#{http.port}#{request.path}")
end
def log_request_headers(request)
if self.class.log_headers
request.each_capitalized { |k,v| log("HTTP request header", "#{k}: #{v}") }
end
end
HTTP_METHODS_WITH_BODY = Set.new(%w(POST PUT GET PATCH))
def log_request_body(request)
if self.class.log_request_body
if HTTP_METHODS_WITH_BODY.include?(request.method)
if (body = request.body) && !body.empty?
log("Request body", truncate_body(body))
end
end
end
end
def log_response_code(response)
log("Response status", "#{response.class} (#{response.code})")
end
def log_response_headers(response)
if self.class.log_headers
response.each_capitalized { |k,v| log("HTTP response header", "#{k}: #{v}") }
end
end
def log_response_body(body)
if self.class.log_response_body
if body.is_a?(Net::ReadAdapter)
log("Response body", "<impossible to log>")
else
if body && !body.empty?
log("Response body", truncate_body(body))
end
end
end
end
def require_logging?(http, request)
self.logger && !ignored?(http, request) && (http.started? || fakeweb?(http, request))
end
def ignored?(http, request)
url = request_url(http, request)
self.class.ignore.any? do |pattern|
url =~ pattern
end
end
def fakeweb?(http, request)
return false unless defined?(::FakeWeb)
uri = ::FakeWeb::Utility.request_uri_as_string(http, request)
method = request.method.downcase.to_sym
::FakeWeb.registered_uri?(method, uri)
end
def truncate_body(body)
if collapse_body_limit && collapse_body_limit > 0 && body && body.size >= collapse_body_limit
body_piece_size = collapse_body_limit / 2
body[0..body_piece_size] +
"\n\n<some data truncated>\n\n" +
body[(body.size - body_piece_size)..body.size]
else
body
end
end
def log(message, dump)
self.logger.send(self.class.level, format_log_entry(message, dump))
end
def format_log_entry(message, dump = nil)
if self.class.colorize
message_color, dump_color = "4;32;1", "0;1"
log_entry = " \e[#{message_color}m#{message}\e[0m "
log_entry << "\e[#{dump_color}m%#{String === dump ? 's' : 'p'}\e[0m" % dump if dump
log_entry
else
"%s %s" % [message, dump]
end
end
def logger
self.class.logger
end
def collapse_body_limit
self.class.collapse_body_limit
end
end
class Net::HTTP
def self.log_headers=(value)
HttpLogger.deprecate_config("log_headers")
HttpLogger.log_headers = value
end
def self.colorize=(value)
HttpLogger.deprecate_config("colorize")
HttpLogger.colorize = value
end
def self.logger=(value)
HttpLogger.deprecate_config("logger")
HttpLogger.logger = value
end
alias_method :request_without_logging, :request
def request(request, body = nil, &block)
HttpLogger.perform(self, request, body) do
request_without_logging(request, body, &block)
end
end
end
if defined?(Rails)
if !Rails.respond_to?(:application) || (Rails.application && Rails.application.config)
# Rails2
Rails.configuration.after_initialize do
HttpLogger.logger = Rails.logger unless HttpLogger.logger
end
elsif defined?(ActiveSupport) && ActiveSupport.respond_to?(:on_load)
# Rails3
ActiveSupport.on_load(:after_initialize) do
HttpLogger.logger = Rails.logger unless HttpLogger.logger
end
end
end