merge master

Changes.md

@@ -1,10 +1,15 @@
 # Sidekiq Changes
 
-HEAD
+4.2.0
 -----------
 
-- Enable development-mode code reloading.  With Rails 5.0+, you don't need
-  to restart Sidekiq to pick up your Sidekiq::Worker changes anymore! [#2457]
+- Enable development-mode code reloading.  **With Rails 5.0+, you don't need
+  to restart Sidekiq to pick up your Sidekiq::Worker changes anymore!** [#2457]
+- **Remove Sinatra dependency**.  Sidekiq's Web UI now uses Rack directly.
+  Thank you to Sidekiq's newest committer, **badosu**, for writing the code
+  and doing a lot of testing to ensure compatibility with many different
+  3rd party plugins.  If your Web UI works with 4.1.4 but fails with
+  4.2.0, please open an issue. [#3075]
 - Allow tuning of concurrency with the `RAILS_MAX_THREADS` env var. [#2985]
   This is the same var used by Puma so you can tune all of your systems
   the same way:

examples/web/Gemfile

@@ -0,0 +1,5 @@
+source 'https://rubygems.org'
+
+gem 'sidekiq', path: '../../'
+gem 'thin'
+gem 'pry'

examples/web/config.ru

@@ -0,0 +1,14 @@
+require 'sidekiq/web'
+require 'redis'
+
+$redis = Redis.new
+
+class SinatraWorker
+  include Sidekiq::Worker
+
+  def perform(msg="lulz you forgot a msg!")
+    $redis.lpush("sinkiq-example-messages", msg)
+  end
+end
+
+run Sidekiq::Web

lib/sidekiq/web.rb

@@ -1,26 +1,28 @@
 # frozen_string_literal: true
 require 'erb'
-require 'yaml'
-require 'sinatra/base'
 
 require 'sidekiq'
 require 'sidekiq/api'
 require 'sidekiq/paginator'
-require 'sidekiq/web_helpers'
+require 'sidekiq/web/helpers'
+
+require 'sidekiq/web/router'
+require 'sidekiq/web/action'
+require 'sidekiq/web/application'
+
+require 'rack/protection'
+
+require 'rack/builder'
+require 'rack/file'
+require 'rack/session/cookie'
 
 module Sidekiq
-  class Web < Sinatra::Base
-    include Sidekiq::Paginator
-
-    enable :sessions
-    use ::Rack::Protection, :use => :authenticity_token unless ENV['RACK_ENV'] == 'test'
-
-    set :root, File.expand_path(File.dirname(__FILE__) + "/../../web")
-    set :public_folder, proc { "#{root}/assets" }
-    set :views, proc { "#{root}/views" }
-    set :locales, ["#{root}/locales"]
-
-    helpers WebHelpers
+  class Web
+    ROOT = File.expand_path("#{File.dirname(__FILE__)}/../../web")
+    VIEWS = "#{ROOT}/views".freeze
+    LOCALES = ["#{ROOT}/locales".freeze]
+    LAYOUT = "#{VIEWS}/layout.erb".freeze
+    ASSETS = "#{ROOT}/assets".freeze
 
     DEFAULT_TABS = {
       "Dashboard" => '',
@@ -32,6 +34,18 @@ module Sidekiq
     }
 
     class << self
+      def settings
+        self
+      end
+
+      def middlewares
+        @middlewares ||= []
+      end
+
+      def use(*middleware_args, &block)
+        middlewares << [middleware_args, block]
+      end
+
       def default_tabs
         DEFAULT_TABS
       end
@@ -41,227 +55,94 @@ module Sidekiq
       end
       alias_method :tabs, :custom_tabs
 
-      attr_accessor :app_url
-    end
-
-    get "/busy" do
-      erb :busy
-    end
-
-    post "/busy" do
-      if params['identity']
-        p = Sidekiq::Process.new('identity' => params['identity'])
-        p.quiet! if params[:quiet]
-        p.stop! if params[:stop]
-      else
-        processes.each do |pro|
-          pro.quiet! if params[:quiet]
-          pro.stop! if params[:stop]
-        end
+      def locales
+        @locales ||= LOCALES
       end
-      redirect "#{root_path}busy"
-    end
 
-    get "/queues" do
-      @queues = Sidekiq::Queue.all
-      erb :queues
-    end
-
-    get "/queues/:name" do
-      halt 404 unless params[:name]
-      @count = (params[:count] || 25).to_i
-      @name = params[:name]
-      @queue = Sidekiq::Queue.new(@name)
-      (@current_page, @total_size, @messages) = page("queue:#{@name}", params[:page], @count)
-      @messages = @messages.map { |msg| Sidekiq::Job.new(msg, @name) }
-      erb :queue
-    end
-
-    post "/queues/:name" do
-      Sidekiq::Queue.new(params[:name]).clear
-      redirect "#{root_path}queues"
-    end
-
-    post "/queues/:name/delete" do
-      Sidekiq::Job.new(params[:key_val], params[:name]).delete
-      redirect_with_query("#{root_path}queues/#{params[:name]}")
-    end
-
-    get '/morgue' do
-      @count = (params[:count] || 25).to_i
-      (@current_page, @total_size, @dead) = page("dead", params[:page], @count, reverse: true)
-      @dead = @dead.map { |msg, score| Sidekiq::SortedEntry.new(nil, score, msg) }
-      erb :morgue
-    end
-
-    get "/morgue/:key" do
-      halt 404 unless params['key']
-      @dead = Sidekiq::DeadSet.new.fetch(*parse_params(params['key'])).first
-      redirect "#{root_path}morgue" if @dead.nil?
-      erb :dead
-    end
-
-    post '/morgue' do
-      redirect request.path unless params['key']
-
-      params['key'].each do |key|
-        job = Sidekiq::DeadSet.new.fetch(*parse_params(key)).first
-        retry_or_delete_or_kill job, params if job
+      def views
+        @views ||= VIEWS
       end
-      redirect_with_query("#{root_path}morgue")
-    end
 
-    post "/morgue/all/delete" do
-      Sidekiq::DeadSet.new.clear
-      redirect "#{root_path}morgue"
-    end
-
-    post "/morgue/all/retry" do
-      Sidekiq::DeadSet.new.retry_all
-      redirect "#{root_path}morgue"
-    end
-
-    post "/morgue/:key" do
-      halt 404 unless params['key']
-      job = Sidekiq::DeadSet.new.fetch(*parse_params(params['key'])).first
-      retry_or_delete_or_kill job, params if job
-      redirect_with_query("#{root_path}morgue")
-    end
-
-
-    get '/retries' do
-      @count = (params[:count] || 25).to_i
-      (@current_page, @total_size, @retries) = page("retry", params[:page], @count)
-      @retries = @retries.map { |msg, score| Sidekiq::SortedEntry.new(nil, score, msg) }
-      erb :retries
-    end
-
-    get "/retries/:key" do
-      @retry = Sidekiq::RetrySet.new.fetch(*parse_params(params['key'])).first
-      redirect "#{root_path}retries" if @retry.nil?
-      erb :retry
-    end
-
-    post '/retries' do
-      redirect request.path unless params['key']
-
-      params['key'].each do |key|
-        job = Sidekiq::RetrySet.new.fetch(*parse_params(key)).first
-        retry_or_delete_or_kill job, params if job
+      def session_secret=(secret)
+        @session_secret = secret
       end
-      redirect_with_query("#{root_path}retries")
+
+      attr_accessor :app_url, :session_secret, :redis_pool
+      attr_writer :locales, :views
     end
 
-    post "/retries/all/delete" do
-      Sidekiq::RetrySet.new.clear
-      redirect "#{root_path}retries"
+    def settings
+      self.class.settings
     end
 
-    post "/retries/all/retry" do
-      Sidekiq::RetrySet.new.retry_all
-      redirect "#{root_path}retries"
+    def use(*middleware_args, &block)
+      middlewares << [middleware_args, block]
     end
 
-    post "/retries/:key" do
-      job = Sidekiq::RetrySet.new.fetch(*parse_params(params['key'])).first
-      retry_or_delete_or_kill job, params if job
-      redirect_with_query("#{root_path}retries")
+    def middlewares
+      @middlewares ||= Web.middlewares.dup
     end
 
-    get '/scheduled' do
-      @count = (params[:count] || 25).to_i
-      (@current_page, @total_size, @scheduled) = page("schedule", params[:page], @count)
-      @scheduled = @scheduled.map { |msg, score| Sidekiq::SortedEntry.new(nil, score, msg) }
-      erb :scheduled
+    def call(env)
+      app.call(env)
     end
 
-    get "/scheduled/:key" do
-      @job = Sidekiq::ScheduledSet.new.fetch(*parse_params(params['key'])).first
-      redirect "#{root_path}scheduled" if @job.nil?
-      erb :scheduled_job_info
+    def self.call(env)
+      @app ||= new
+      @app.call(env)
     end
 
-    post '/scheduled' do
-      redirect request.path unless params['key']
-
-      params['key'].each do |key|
-        job = Sidekiq::ScheduledSet.new.fetch(*parse_params(key)).first
-        delete_or_add_queue job, params if job
-      end
-      redirect_with_query("#{root_path}scheduled")
+    def app
+      @app ||= build
     end
 
-    post "/scheduled/:key" do
-      halt 404 unless params['key']
-      job = Sidekiq::ScheduledSet.new.fetch(*parse_params(params['key'])).first
-      delete_or_add_queue job, params if job
-      redirect_with_query("#{root_path}scheduled")
-    end
-
-    get '/' do
-      @redis_info = redis_info.select{ |k, v| REDIS_KEYS.include? k }
-      stats_history = Sidekiq::Stats::History.new((params[:days] || 30).to_i)
-      @processed_history = stats_history.processed
-      @failed_history = stats_history.failed
-      erb :dashboard
-    end
-
-    REDIS_KEYS = %w(redis_version uptime_in_days connected_clients used_memory_human used_memory_peak_human)
-
-    get '/dashboard/stats' do
-      redirect "#{root_path}stats"
-    end
-
-    get '/stats' do
-      sidekiq_stats = Sidekiq::Stats.new
-      redis_stats   = redis_info.select { |k, v| REDIS_KEYS.include? k }
-
-      content_type :json
-      Sidekiq.dump_json(
-        sidekiq: {
-          processed:       sidekiq_stats.processed,
-          failed:          sidekiq_stats.failed,
-          busy:            sidekiq_stats.workers_size,
-          processes:       sidekiq_stats.processes_size,
-          enqueued:        sidekiq_stats.enqueued,
-          scheduled:       sidekiq_stats.scheduled_size,
-          retries:         sidekiq_stats.retry_size,
-          dead:            sidekiq_stats.dead_size,
-          default_latency: sidekiq_stats.default_queue_latency
-        },
-        redis: redis_stats
-      )
-    end
-
-    get '/stats/queues' do
-      queue_stats = Sidekiq::Stats::Queues.new
-
-      content_type :json
-      Sidekiq.dump_json(
-        queue_stats.lengths
-      )
+    def self.register(extension)
+      extension.registered(WebApplication)
     end
 
     private
 
-    def retry_or_delete_or_kill job, params
-      if params['retry']
-        job.retry
-      elsif params['delete']
-        job.delete
-      elsif params['kill']
-        job.kill
+    def using?(middleware)
+      middlewares.any? do |(m,_)|
+        m.kind_of?(Array) && (m[0] == middleware || m[0].kind_of?(middleware))
       end
     end
 
-    def delete_or_add_queue job, params
-      if params['delete']
-        job.delete
-      elsif params['add_to_queue']
-        job.add_to_queue
+    def build
+      middlewares = self.middlewares
+      klass = self.class
+
+      unless using?(::Rack::Protection) || ENV['RACK_ENV'] == 'test'
+        middlewares.unshift [[::Rack::Protection, { use: :authenticity_token }], nil]
+      end
+
+      unless using? ::Rack::Session::Cookie
+        unless secret = Web.session_secret
+          require 'securerandom'
+          secret = SecureRandom.hex(64)
+        end
+
+        middlewares.unshift [[::Rack::Session::Cookie, { secret: secret }], nil]
+      end
+
+      ::Rack::Builder.new do
+        %w(stylesheets javascripts images).each do |asset_dir|
+          map "/#{asset_dir}" do
+            run ::Rack::File.new("#{ASSETS}/#{asset_dir}")
+          end
+        end
+
+        middlewares.each {|middleware, block| use *middleware, &block }
+
+        run WebApplication.new(klass)
       end
     end
   end
+
+  Sidekiq::WebApplication.helpers WebHelpers
+  Sidekiq::WebApplication.helpers Sidekiq::Paginator
+
+  Sidekiq::WebAction.class_eval "def _render\n#{ERB.new(File.read(Web::LAYOUT)).src}\nend"
 end
 
 if defined?(::ActionDispatch::Request::Session) &&

lib/sidekiq/web/action.rb

@@ -0,0 +1,98 @@
+# frozen_string_literal: true
+
+module Sidekiq
+  class WebAction
+    RACK_SESSION = 'rack.session'.freeze
+
+    LOCATION = "Location".freeze
+
+    CONTENT_TYPE = "Content-Type".freeze
+    TEXT_HTML = { CONTENT_TYPE => "text/html".freeze }
+    APPLICATION_JSON = { CONTENT_TYPE => "application/json".freeze }
+
+    attr_accessor :env, :block, :type
+
+    def settings
+      Web.settings
+    end
+
+    def request
+      @request ||= ::Rack::Request.new(env)
+    end
+
+    def halt(res)
+      throw :halt, res
+    end
+
+    def redirect(location)
+      throw :halt, [302, { LOCATION => "#{request.base_url}#{location}" }, []]
+    end
+
+    def params
+      indifferent_hash = Hash.new {|hash,key| hash[key.to_s] if Symbol === key }
+
+      indifferent_hash.merge! request.params
+      route_params.each {|k,v| indifferent_hash[k.to_s] = v }
+
+      indifferent_hash
+    end
+
+    def route_params
+      env[WebRouter::ROUTE_PARAMS]
+    end
+
+    def session
+      env[RACK_SESSION]
+    end
+
+    def content_type(type)
+      @type = type
+    end
+
+    def erb(content, options = {})
+      if content.kind_of? Symbol
+        unless respond_to?(:"_erb_#{content}")
+          src = ERB.new(File.read("#{Web.settings.views}/#{content}.erb")).src
+          WebAction.class_eval("def _erb_#{content}\n#{src}\n end")
+        end
+      end
+
+      if @_erb
+        _erb(content, options[:locals])
+      else
+        @_erb = true
+        content = _erb(content, options[:locals])
+
+        _render { content }
+      end
+    end
+
+    def render(engine, content, options = {})
+      raise "Only erb templates are supported" if engine != :erb
+
+      erb(content, options)
+    end
+
+    def json(payload)
+      [200, APPLICATION_JSON, [Sidekiq.dump_json(payload)]]
+    end
+
+    def initialize(env, block)
+      @env = env
+      @block = block
+      @@files ||= {}
+    end
+
+    private
+
+    def _erb(file, locals)
+      locals.each {|k, v| define_singleton_method(k){ v } } if locals
+
+      if file.kind_of?(String)
+        ERB.new(file).result(binding)
+      else
+        send(:"_erb_#{file}")
+      end
+    end
+  end
+end

lib/sidekiq/web/application.rb

@@ -0,0 +1,335 @@
+# frozen_string_literal: true
+
+module Sidekiq
+  class WebApplication
+    extend WebRouter
+
+    CONTENT_LENGTH = "Content-Length".freeze
+    CONTENT_TYPE = "Content-Type".freeze
+    REDIS_KEYS = %w(redis_version uptime_in_days connected_clients used_memory_human used_memory_peak_human)
+    NOT_FOUND = [404, {"Content-Type" => "text/plain", "X-Cascade" => "pass" }, ["Not Found"]]
+
+    def initialize(klass)
+      @klass = klass
+    end
+
+    def settings
+      @klass.settings
+    end
+
+    def self.settings
+      Sidekiq::Web.settings
+    end
+
+    def self.tabs
+      Sidekiq::Web.tabs
+    end
+
+    def self.set(key, val)
+      # nothing, backwards compatibility
+    end
+
+    get "/" do
+      @redis_info = redis_info.select{ |k, v| REDIS_KEYS.include? k }
+      stats_history = Sidekiq::Stats::History.new((params['days'] || 30).to_i)
+      @processed_history = stats_history.processed
+      @failed_history = stats_history.failed
+
+      erb(:dashboard)
+    end
+
+    get "/busy" do
+      erb(:busy)
+    end
+
+    post "/busy" do
+      if params['identity']
+        p = Sidekiq::Process.new('identity' => params['identity'])
+        p.quiet! if params['quiet']
+        p.stop! if params['stop']
+      else
+        processes.each do |pro|
+          pro.quiet! if params['quiet']
+          pro.stop! if params['stop']
+        end
+      end
+
+      redirect "#{root_path}busy"
+    end
+
+    get "/queues" do
+      @queues = Sidekiq::Queue.all
+
+      erb(:queues)
+    end
+
+    get "/queues/:name" do
+      @name = route_params[:name]
+
+      halt(404) unless @name
+
+      @count = (params['count'] || 25).to_i
+      @queue = Sidekiq::Queue.new(@name)
+      (@current_page, @total_size, @messages) = page("queue:#{@name}", params['page'], @count)
+      @messages = @messages.map { |msg| Sidekiq::Job.new(msg, @name) }
+
+      erb(:queue)
+    end
+
+    post "/queues/:name" do
+      Sidekiq::Queue.new(route_params[:name]).clear
+
+      redirect "#{root_path}queues"
+    end
+
+    post "/queues/:name/delete" do
+      name = route_params[:name]
+      Sidekiq::Job.new(params['key_val'], name).delete
+
+      redirect_with_query("#{root_path}queues/#{name}")
+    end
+
+    get '/morgue' do
+      @count = (params['count'] || 25).to_i
+      (@current_page, @total_size, @dead) = page("dead", params['page'], @count, reverse: true)
+      @dead = @dead.map { |msg, score| Sidekiq::SortedEntry.new(nil, score, msg) }
+
+      erb(:morgue)
+    end
+
+    get "/morgue/:key" do
+      halt(404) unless key = route_params[:key]
+
+      @dead = Sidekiq::DeadSet.new.fetch(*parse_params(key)).first
+
+      if @dead.nil?
+        redirect "#{root_path}morgue"
+      else
+        erb(:dead)
+      end
+    end
+
+    post '/morgue' do
+      redirect(request.path) unless params['key']
+
+      params['key'].each do |key|
+        job = Sidekiq::DeadSet.new.fetch(*parse_params(key)).first
+        retry_or_delete_or_kill job, params if job
+      end
+
+      redirect_with_query("#{root_path}morgue")
+    end
+
+    post "/morgue/all/delete" do
+      Sidekiq::DeadSet.new.clear
+
+      redirect "#{root_path}morgue"
+    end
+
+    post "/morgue/all/retry" do
+      Sidekiq::DeadSet.new.retry_all
+
+      redirect "#{root_path}morgue"
+    end
+
+    post "/morgue/:key" do
+      halt(404) unless key = route_params[:key]
+
+      job = Sidekiq::DeadSet.new.fetch(*parse_params(key)).first
+      retry_or_delete_or_kill job, params if job
+
+      redirect_with_query("#{root_path}morgue")
+    end
+
+    get '/retries' do
+      @count = (params['count'] || 25).to_i
+      (@current_page, @total_size, @retries) = page("retry", params['page'], @count)
+      @retries = @retries.map { |msg, score| Sidekiq::SortedEntry.new(nil, score, msg) }
+
+      erb(:retries)
+    end
+
+    get "/retries/:key" do
+      @retry = Sidekiq::RetrySet.new.fetch(*parse_params(route_params[:key])).first
+
+      if @retry.nil?
+        redirect "#{root_path}retries"
+      else
+        erb(:retry)
+      end
+    end
+
+    post '/retries' do
+      redirect(request.path) unless params['key']
+
+      params['key'].each do |key|
+        job = Sidekiq::RetrySet.new.fetch(*parse_params(key)).first
+        retry_or_delete_or_kill job, params if job
+      end
+
+      redirect_with_query("#{root_path}retries")
+    end
+
+    post "/retries/all/delete" do
+      Sidekiq::RetrySet.new.clear
+
+      redirect "#{root_path}retries"
+    end
+
+    post "/retries/all/retry" do
+      Sidekiq::RetrySet.new.retry_all
+
+      redirect "#{root_path}retries"
+    end
+
+    post "/retries/:key" do
+      job = Sidekiq::RetrySet.new.fetch(*parse_params(route_params[:key])).first
+
+      retry_or_delete_or_kill job, params if job
+
+      redirect_with_query("#{root_path}retries")
+    end
+
+    get '/scheduled' do
+      @count = (params['count'] || 25).to_i
+      (@current_page, @total_size, @scheduled) = page("schedule", params['page'], @count)
+      @scheduled = @scheduled.map { |msg, score| Sidekiq::SortedEntry.new(nil, score, msg) }
+
+      erb(:scheduled)
+    end
+
+    get "/scheduled/:key" do
+      @job = Sidekiq::ScheduledSet.new.fetch(*parse_params(route_params[:key])).first
+
+      if @job.nil?
+        redirect "#{root_path}scheduled"
+      else
+        erb(:scheduled_job_info)
+      end
+    end
+
+    post '/scheduled' do
+      redirect(request.path) unless params['key']
+
+      params['key'].each do |key|
+        job = Sidekiq::ScheduledSet.new.fetch(*parse_params(key)).first
+        delete_or_add_queue job, params if job
+      end
+
+      redirect_with_query("#{root_path}scheduled")
+    end
+
+    post "/scheduled/:key" do
+      halt(404) unless key = route_params[:key]
+
+      job = Sidekiq::ScheduledSet.new.fetch(*parse_params(key)).first
+      delete_or_add_queue job, params if job
+
+      redirect_with_query("#{root_path}scheduled")
+    end
+
+    get '/dashboard/stats' do
+      redirect "#{root_path}stats"
+    end
+
+    get '/stats' do
+      sidekiq_stats = Sidekiq::Stats.new
+      redis_stats   = redis_info.select { |k, v| REDIS_KEYS.include? k }
+
+      json(
+        sidekiq: {
+          processed:       sidekiq_stats.processed,
+          failed:          sidekiq_stats.failed,
+          busy:            sidekiq_stats.workers_size,
+          processes:       sidekiq_stats.processes_size,
+          enqueued:        sidekiq_stats.enqueued,
+          scheduled:       sidekiq_stats.scheduled_size,
+          retries:         sidekiq_stats.retry_size,
+          dead:            sidekiq_stats.dead_size,
+          default_latency: sidekiq_stats.default_queue_latency
+        },
+        redis: redis_stats
+      )
+    end
+
+    get '/stats/queues' do
+      json Sidekiq::Stats::Queues.new.lengths
+    end
+
+    def call(env)
+      action = self.class.match(env)
+      return NOT_FOUND unless action
+
+      resp = catch(:halt) do
+        app = @klass
+        self.class.run_befores(app, action)
+        begin
+          resp = action.instance_exec env, &action.block
+        ensure
+          self.class.run_afters(app, action)
+        end
+
+        resp
+      end
+
+      resp = case resp
+      when Array
+        resp
+      when Fixnum
+        [resp, {}, []]
+      else
+        type_header = case action.type
+        when :json
+          WebAction::APPLICATION_JSON
+        when String
+          { WebAction::CONTENT_TYPE => action.type }
+        else
+          WebAction::TEXT_HTML
+        end
+
+        [200, type_header, [resp]]
+      end
+
+      resp[1][CONTENT_LENGTH] = resp[2].inject(0) { |l, p| l + p.bytesize }.to_s
+
+      resp
+    end
+
+    def self.helpers(mod=nil, &block)
+      if block_given?
+        WebAction.class_eval(&block)
+      else
+        WebAction.send(:include, mod)
+      end
+    end
+
+    def self.before(path=nil, &block)
+      befores << [path && Regexp.new("\\A#{path.gsub("*", ".*")}\\z"), block]
+    end
+
+    def self.after(path=nil, &block)
+      afters << [path && Regexp.new("\\A#{path.gsub("*", ".*")}\\z"), block]
+    end
+
+    def self.run_befores(app, action)
+      run_hooks(befores, app, action)
+    end
+
+    def self.run_afters(app, action)
+      run_hooks(afters, app, action)
+    end
+
+    def self.run_hooks(hooks, app, action)
+      hooks.select { |p,_| !p || p =~ action.env[WebRouter::PATH_INFO] }.
+            each {|_,b| action.instance_exec(action.env, app, &b) }
+    end
+
+    def self.befores
+      @befores ||= []
+    end
+
+    def self.afters
+      @afters ||= []
+    end
+  end
+end

lib/sidekiq/web/helpers.rb

@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 require 'uri'
+require 'yaml'
 
 module Sidekiq
   # This is not a public API
@@ -45,21 +46,13 @@ module Sidekiq
     #     <meta .../>
     #   <% end %>
     #
-    def add_to_head(&block)
+    def add_to_head
       @head_html ||= []
-      @head_html << block if block_given?
+      @head_html << yield.dup if block_given?
     end
 
     def display_custom_head
-      return unless defined?(@head_html)
-      @head_html.map { |block| capture(&block) }.join
-    end
-
-    # Simple capture method for erb templates. The origin was
-    # capture method from sinatra-contrib library.
-    def capture(&block)
-      block.call
-      eval('', block.binding)
+      @head_html.join if @head_html
     end
 
     # Given a browser request Accept-Language header like
@@ -69,7 +62,7 @@ module Sidekiq
     def locale
       @locale ||= begin
         locale = 'en'.freeze
-        languages = request.env['HTTP_ACCEPT_LANGUAGE'.freeze] || 'en'.freeze
+        languages = env['HTTP_ACCEPT_LANGUAGE'.freeze] || 'en'.freeze
         languages.downcase.split(','.freeze).each do |lang|
           next if lang == '*'.freeze
           lang = lang.split(';'.freeze)[0]
@@ -251,5 +244,23 @@ module Sidekiq
         "#{redis_connection}#{namespace_suffix}"
       end
     end
+
+    def retry_or_delete_or_kill(job, params)
+      if params['retry']
+        job.retry
+      elsif params['delete']
+        job.delete
+      elsif params['kill']
+        job.kill
+      end
+    end
+
+    def delete_or_add_queue(job, params)
+      if params['delete']
+        job.delete
+      elsif params['add_to_queue']
+        job.add_to_queue
+      end
+    end
   end
 end

lib/sidekiq/web/router.rb

@@ -0,0 +1,96 @@
+# frozen_string_literal: true
+require 'rack'
+
+module Sidekiq
+  module WebRouter
+    GET = 'GET'.freeze
+    DELETE = 'DELETE'.freeze
+    POST = 'POST'.freeze
+    PUT = 'PUT'.freeze
+    PATCH = 'PATCH'.freeze
+    HEAD = 'HEAD'.freeze
+
+    ROUTE_PARAMS = 'rack.route_params'.freeze
+    REQUEST_METHOD = 'REQUEST_METHOD'.freeze
+    PATH_INFO = 'PATH_INFO'.freeze
+
+    def get(path, &block)
+      route(GET, path, &block)
+    end
+
+    def post(path, &block)
+      route(POST, path, &block)
+    end
+
+    def put(path, &block)
+      route(PUT, path, &block)
+    end
+
+    def patch(path, &block)
+      route(PATCH, path, &block)
+    end
+
+    def delete(path, &block)
+      route(DELETE, path, &block)
+    end
+
+    def route(method, path, &block)
+      @routes ||= { GET => [], POST => [], PUT => [], PATCH => [], DELETE => [], HEAD => [] }
+
+      @routes[method] << WebRoute.new(method, path, block)
+      @routes[HEAD] << WebRoute.new(method, path, block) if method == GET
+    end
+
+    def match(env)
+      request_method = env[REQUEST_METHOD]
+      path_info = ::Rack::Utils.unescape env[PATH_INFO]
+
+      @routes[request_method].each do |route|
+        if params = route.match(request_method, path_info)
+          env[ROUTE_PARAMS] = params
+
+          return WebAction.new(env, route.block)
+        end
+      end
+
+      nil
+    end
+  end
+
+  class WebRoute
+    attr_accessor :request_method, :pattern, :block, :name
+
+    NAMED_SEGMENTS_PATTERN = /\/([^\/]*):([^\.:$\/]+)/.freeze
+
+    def initialize(request_method, pattern, block)
+      @request_method = request_method
+      @pattern = pattern
+      @block = block
+    end
+
+    def matcher
+      @matcher ||= compile
+    end
+
+    def compile
+      if pattern.match(NAMED_SEGMENTS_PATTERN)
+        p = pattern.gsub(NAMED_SEGMENTS_PATTERN, '/\1(?<\2>[^$/]+)')
+
+        Regexp.new("\\A#{p}\\Z")
+      else
+        pattern
+      end
+    end
+
+    def match(request_method, path)
+      case matcher
+      when String
+        {} if path == matcher
+      else
+        if path_match = path.match(matcher)
+          params = Hash[path_match.names.map(&:to_sym).zip(path_match.captures)]
+        end
+      end
+    end
+  end
+end

myapp/Gemfile

@@ -3,7 +3,6 @@ source 'https://rubygems.org'
 gem 'pry'
 gem 'sidekiq', :path => '..'
 gem 'rails', '5.0.0'
-gem 'sinatra', github: 'sinatra/sinatra'
 
 platforms :ruby do
   gem 'sqlite3'

sidekiq.gemspec

@@ -18,7 +18,7 @@ Gem::Specification.new do |gem|
   gem.add_dependency                  'redis', '~> 3.2', '>= 3.2.1'
   gem.add_dependency                  'connection_pool', '~> 2.2', '>= 2.2.0'
   gem.add_dependency                  'concurrent-ruby', '~> 1.0'
-  gem.add_dependency                  'sinatra', '>= 1.4.7'
+  gem.add_dependency                  'rack-protection', '~> 1.5'
   gem.add_development_dependency      'redis-namespace', '~> 1.5', '>= 1.5.2'
   gem.add_development_dependency      'minitest', '~> 5.7', '>= 5.7.0'
   gem.add_development_dependency      'rake', '~> 10.0'

test/test_web.rb

@@ -3,10 +3,8 @@
 require_relative 'helper'
 require 'sidekiq/web'
 require 'rack/test'
-require 'tilt/erubis'
 
 class TestWeb < Sidekiq::Test
-
   describe 'sidekiq web' do
     include Rack::Test::Methods
 
@@ -341,7 +339,6 @@ class TestWeb < Sidekiq::Test
       assert last_response.body.include?( "&lt;a&gt;hello&lt;&#x2F;a&gt;" )
       assert !last_response.body.include?( "<a>hello</a>" )
 
-
       # on /queues page
       params = add_xss_retry # sorry, don't know how to easily make this show up on queues page otherwise.
       post "/retries/#{job_params(*params)}", 'retry' => 'Retry'
@@ -374,7 +371,7 @@ class TestWeb < Sidekiq::Test
       before do
         Sidekiq::Web.settings.locales << File.join(File.dirname(__FILE__), "fixtures")
         Sidekiq::Web.tabs['Custom Tab'] = '/custom'
-        Sidekiq::Web.get('/custom') do
+        Sidekiq::WebApplication.get('/custom') do
           clear_caches # ugly hack since I can't figure out how to access WebHelpers outside of this context
           t('translated_text')
         end
@@ -387,6 +384,7 @@ class TestWeb < Sidekiq::Test
 
       it 'can show user defined tab with custom locales' do
         get '/custom'
+
         assert_match(/Changed text/, last_response.body)
       end
     end
@@ -564,6 +562,7 @@ class TestWeb < Sidekiq::Test
       Sidekiq.redis do |conn|
         conn.zadd('retry', score, Sidekiq.dump_json(msg))
       end
+
       [msg, score]
     end
 
@@ -596,6 +595,7 @@ class TestWeb < Sidekiq::Test
       Sidekiq.redis do |conn|
         conn.zadd('retry', score, Sidekiq.dump_json(msg))
       end
+
       [msg, score]
     end
 
@@ -611,4 +611,51 @@ class TestWeb < Sidekiq::Test
       end
     end
   end
+
+  describe 'sidekiq web with basic auth' do
+    include Rack::Test::Methods
+
+    def app
+      app = Sidekiq::Web.new
+      app.use(Rack::Auth::Basic) { |user, pass| user == "a" && pass == "b" }
+
+      app
+    end
+
+    it 'requires basic authentication' do
+      get '/'
+
+      assert_equal 401, last_response.status
+      refute_nil last_response.header["WWW-Authenticate"]
+    end
+
+    it 'authenticates successfuly' do
+      basic_authorize 'a', 'b'
+
+      get '/'
+
+      assert_equal 200, last_response.status
+    end
+  end
+
+  describe 'sidekiq web with custom session' do
+    include Rack::Test::Methods
+
+    def app
+      app = Sidekiq::Web.new
+
+      app.use Rack::Session::Cookie, secret: 'v3rys3cr31', host: 'nicehost.org'
+
+      app
+    end
+
+    it 'requires basic authentication' do
+      get '/'
+
+      session_options = last_request.env['rack.session'].options
+
+      assert_equal 'v3rys3cr31', session_options[:secret]
+      assert_equal 'nicehost.org', session_options[:host]
+    end
+  end
 end

web/views/dashboard.erb

@@ -58,14 +58,14 @@
       </div>
     <% end %>
 
-    <%  if @redis_info.fetch("used_memory_human", nil) %>
+    <% if @redis_info.fetch("used_memory_human", nil) %>
       <div class="stat">
         <h3 class="used_memory_human"><%= @redis_info.fetch("used_memory_human") %></h3>
         <p><%= t('MemoryUsage') %></p>
       </div>
     <% end %>
 
-    <%  if @redis_info.fetch("used_memory_peak_human", nil) %>
+    <% if @redis_info.fetch("used_memory_peak_human", nil) %>
       <div class="stat">
         <h3 class="used_memory_peak_human"><%= @redis_info.fetch("used_memory_peak_human") %></h3>
         <p><%= t('PeakMemoryUsage') %></p>

web/views/dead.erb

@@ -1,4 +1,4 @@
-<%= erb :_job_info, :locals => {:job => @dead, :type => :dead} %>
+<%= erb :_job_info, locals: { job: @dead, type: :dead } %>
 
 <h3><%= t('Error') %></h3>
 <div class="table_container">

web/views/layout.erb

@@ -2,6 +2,7 @@
 <html>
   <head>
     <title><%= environment_title_prefix %><%= Sidekiq::NAME %></title>
+    <meta charset="utf8" />
     <meta name="viewport" content="width=device-width,initial-scale=1.0" />
     <link href="<%= root_path %>stylesheets/bootstrap.css" media="screen" rel="stylesheet" type="text/css" />
     <link href="<%= root_path %>stylesheets/application.css" media="screen" rel="stylesheet" type="text/css" />
@@ -26,7 +27,7 @@
         </div>
       </div>
     </div>
-    <%=  erb :_footer %>
+    <%= erb :_footer %>
     <%= erb :_poll_js %>
   </body>
 </html>

web/views/morgue.erb

@@ -4,7 +4,7 @@
   </div>
   <% if @dead.size > 0 && @total_size > @count %>
     <div class="col-sm-4">
-      <%= erb :_paging, :locals => { :url => "#{root_path}morgue" } %>
+      <%= erb :_paging, locals: { url: "#{root_path}morgue" } %>
     </div>
   <% end %>
   <%= filtering('dead') %>

web/views/queue.erb

@@ -8,7 +8,7 @@
     </h3>
   </div>
   <div class="col-sm-4 pull-right">
-    <%= erb :_paging, :locals => { :url => "#{root_path}queues/#{@name}" } %>
+    <%= erb :_paging, locals: { url: "#{root_path}queues/#{@name}" } %>
   </div>
 </header>
 <div class="table_container">
@@ -42,4 +42,4 @@
     <% end %>
   </table>
 </div>
-<%= erb :_paging, :locals => { :url => "#{root_path}queues/#{@name}" } %>
+<%= erb :_paging, locals: { url: "#{root_path}queues/#{@name}" } %>

web/views/retries.erb

@@ -4,7 +4,7 @@
   </div>
   <% if @retries.size > 0 && @total_size > @count %>
     <div class="col-sm-4">
-      <%= erb :_paging, :locals => { :url => "#{root_path}retries" } %>
+      <%= erb :_paging, locals: { url: "#{root_path}retries" } %>
     </div>
   <% end %>
   <%= filtering('retries') %>

web/views/retry.erb

@@ -1,4 +1,4 @@
-<%= erb :_job_info, :locals => {:job => @retry, :type => :retry} %>
+<%= erb :_job_info, locals: { job: @retry, type: :retry } %>
 
 <h3><%= t('Error') %></h3>
 <div class="table_container">

web/views/scheduled.erb

@@ -4,7 +4,7 @@
   </div>
   <% if @scheduled.size > 0 && @total_size > @count %>
     <div class="col-sm-4">
-      <%= erb :_paging, :locals => { :url => "#{root_path}scheduled" } %>
+      <%= erb :_paging, locals: { url: "#{root_path}scheduled" } %>
     </div>
   <% end %>
   <%= filtering('scheduled') %>

web/views/scheduled_job_info.erb

@@ -1,4 +1,4 @@
-<%= erb :_job_info, :locals => {:job => @job, :type => :scheduled} %>
+<%= erb :_job_info, locals: { job: @job, type: :scheduled } %>
 
 <form class="form-horizontal" action="<%= root_path %>scheduled/<%= job_params(@job, @job.score) %>" method="post">
   <%= csrf_tag %>