Class: Logster::Middleware::Viewer

Inherits:
Object
  • Object
show all
Defined in:
lib/logster/middleware/viewer.rb

Constant Summary collapse

PATH_INFO = 
"PATH_INFO".freeze
SCRIPT_NAME = 
"SCRIPT_NAME".freeze
REQUEST_METHOD = 
"REQUEST_METHOD".freeze

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ Viewer

Returns a new instance of Viewer.



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# File 'lib/logster/middleware/viewer.rb', line 11

def initialize(app)
  @app = app

  @logs_path = Logster.config.subdirectory || "/logs"
  @path_regex = Regexp.new("^(#{@logs_path}$)|^(#{@logs_path}(/.*))$")
  @store = Logster.store or raise ArgumentError.new("store")

  @assets_path = File.expand_path("../../../../assets", __FILE__)
  @fileserver = Rack::File.new(@assets_path)
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/logster/middleware/viewer.rb', line 22

def call(env)
  path = env[PATH_INFO]
  script_name = env[SCRIPT_NAME]

  if script_name && script_name.length > 0
    path = script_name + path
  end

  if resource = resolve_path(path)

    if resource =~ /\.js$|\.handlebars$|\.css$/
      env[PATH_INFO] = resource
      # accl redirect is going to be trouble, ensure its bypassed
      env['sendfile.type'] = ''
      @fileserver.call(env)

    elsif resource.start_with?("/messages.json")
      serve_messages(Rack::Request.new(env))

    elsif resource =~ /\/(un)?protect\/([0-9a-f]+)$/
      off = $1 == "un"
      key = $2

      message = Logster.store.get(key)
      unless message
        return [404, {}, ["Message not found"]]
      end

      if off
        if Logster.store.unprotect(key)
          return [301, {"Location" => "#{@logs_path}/show/#{key}?protected=false"}, []]
        else
          return [500, {}, ["Failed"]]
        end
      else
        if Logster.store.protect(key)
          return [301, {"Location" => "#{@logs_path}/show/#{key}?protected=true"}, []]
        else
          return [500, {}, ["Failed"]]
        end
      end

    elsif resource =~ /\/clear$/
      if env[REQUEST_METHOD] != "POST"
        return [405, {}, ["GET not allowed for /clear"]]
      end
      Logster.store.clear
      return [200, {}, ["Messages cleared"]]

    elsif resource =~ /\/show\/([0-9a-f]+)(\.json)?$/
      key = $1
      json = $2 == ".json"

      message = Logster.store.get(key)
      unless message
        return [404, {}, ["Message not found"]]
      end

      if json
        [200, {"Content-Type" => "application/json; charset=utf-8"}, [message.to_json]]
      else
        preload = preload_json({"/show/#{key}.json" => message})
        [200, {"Content-Type" => "text/html; charset=utf-8"}, [body(preload)]]
      end

    elsif resource == "/"
      [200, {"Content-Type" => "text/html; charset=utf-8"}, [body(preload_json)]]

    else
      [404, {}, ["Not found"]]
    end
  else
    @app.call(env)
  end
end