Merged openproject-webhooks into openproject

modules/webhooks/Gemfile.plugins

@@ -0,0 +1,9 @@
+# Used by travis to bundle this plugin with the OpenProject core.
+# The tested plugin will be moved to the path `./plugins/this`
+# whereas OpenProject will be checked out to `.`.
+
+group :opf_plugins do
+  gem 'openproject-webhooks', path: 'plugins/this'
+end
+
+# If the plugin has any dependencies declare them here:

modules/webhooks/README.md

@@ -0,0 +1,64 @@
+# OpenProject Webhooks Plugin
+
+`openproject-webhooks` is an OpenProject plugin, which adds a webhook API to OpenProject. Other plugins may build upon this plugin to implement their functionality.
+
+External services like [GitHub](https://github.com/finnlabs/openproject-github_integration) or Travis could be integrated with the help of this plugin.
+
+**Note:** This is an infrastructure-only plugin. With this plugin alone, you will not notice any difference in your OpenProject installation.
+
+## Installation
+
+This is an OpenProject plugin, thus we follow the usual OpenProject plugin installation mechanism.
+
+### Requirements
+
+* OpenProject version **3.1.0 or higher** ( or a current installation from the `dev` branch)
+
+### Plugin Installation
+
+Edit the `Gemfile.plugins` file in your openproject-installation directory to contain the following lines:
+
+<pre>
+gem "openproject-webhooks", :git => 'https://github.com/finnlabs/openproject-webhooks.git', :branch => 'stable'
+</pre>
+
+Then update your bundle with:
+
+<pre>
+bundle install
+</pre>
+
+and restart the OpenProject server.
+
+## Contact
+
+OpenProject is supported by its community members, both companies and individuals.
+
+Please find ways to contact us on the OpenProject [support page](https://www.openproject.org/support).
+
+## Contributing
+
+This OpenProject plugin is an open source project and we encourage you to help us out. We'd be happy if you do one of these things:
+
+* Create a new [work package in the Webhooks plugin project on openproject.org](https://www.openproject.org/projects/webhooks/work_packages) if you find a bug or need a feature
+* Help out other people on our [forums](https://www.openproject.org/projects/openproject/boards)
+* Help us [translate this plugin to more languages](https://www.openproject.org/projects/openproject/wiki/Translations)
+* Contribute code via GitHub Pull Requests, see our [contribution page](https://www.openproject.org/projects/openproject/wiki/Contribution) for more information
+
+## Community
+
+OpenProject is driven by an active group of open source enthusiasts: software engineers, project managers, creatives, and consultants. OpenProject is supported by companies as well as individuals. We share the vision to build great open source project collaboration software.
+The [OpenProject Foundation (OPF)](https://www.openproject.org/projects/openproject/wiki/OpenProject_Foundation) will give official guidance to the project and the community and oversees contributions and decisions.
+
+## Repository
+
+This repository contains two main branches:
+
+* `dev`: The main development branch. We try to keep it stable in the sense of all tests are passing, but we don't recommend it for production systems.
+* `stable`: Contains the latest stable release that we recommend for production use. Use this if you always want the latest version of this plugin.
+
+## License
+
+Copyright (C) 2014 the OpenProject Foundation (OPF)
+
+This plugin is licensed under the GNU GPL v3. See [doc/COPYRIGHT.md](doc/COPYRIGHT.md) for details.

modules/webhooks/app/assets/javascripts/webhooks/webhooks.js

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+jQuery(function ($) {
+
+  // Toggle selector for new/edit webhooks projects
+  $('input[name="webhook[project_ids]"]').change(function(){
+    $('.webhooks--selected-project-ids').prop('disabled', $(this).val() === 'all');
+  });
+
+  $('input[name="webhook[type_ids]"]').change(function(){
+    $('.webhooks--selected-type-ids').prop('disabled', $(this).val() === 'all');
+  });
+
+});

modules/webhooks/app/assets/stylesheets/webhooks/webhooks.sass

@@ -0,0 +1,18 @@
+// Add some paddings to action links
+.webhooks--outgoing-webhook-row td.buttons
+  a:not(:last-child):after
+    content: ","
+    padding: 0 1px
+
+.webhooks--delivery-success
+  color: #019875
+
+.webhooks--delivery-error
+  color: #c0392b
+
+.webhooks--response-body-modal
+  min-width: 25vw
+
+  pre
+    background: #f1f1f1
+    padding: 5px

modules/webhooks/app/cells/views/response_body.erb

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+<section data-augmented-model-wrapper>
+  <a class="modal-wrapper--activation-link" title="<%= log_entry.class.human_attribute_name('response_body') %>">
+    <%= op_icon('icon-info1') %>
+    <%= t(:button_show) %>
+  </a>
+  <div style="display: none" class="modal-wrapper--content  ngdialog-theme-openproject">
+    <div class="webhooks--response-body-modal">
+        <div class="modal--header">
+          <h2><%= log_entry.class.human_attribute_name('response_body') %></h2>
+        </div>
+        <div class="ngdialog-body modal--main -inner-scroll">
+          <h2>Headers</h2>
+          <pre class="webhooks--response-headers" ><%- log_entry.response_headers.each do |k,v| -%><strong><%= k -%></strong>:  <span><%= v -%></span><br/><%- end -%></pre>
+          <hr/>
+          <h2>Response body</h2>
+          <pre class="webhooks--response-body">
+            <%= log_entry.response_body %>
+          </pre>
+        </div>
+        <div class="modal--footer">
+          <button class="button dynamic-content-modal--close-button button"
+                  title="<%= t(:button_close) %>">
+            <%= t(:button_close)%>
+          </button>
+        </div>
+      </div>
+  </div>
+</section>

modules/webhooks/app/cells/webhooks/outgoing/deliveries/row_cell.rb

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+module ::Webhooks
+  module Outgoing
+    module Deliveries
+      class RowCell < ::RowCell
+        include ::IconsHelper
+
+        def log
+          model
+        end
+
+        def time
+          model.updated_at.to_s # Force ISO8601
+        end
+
+        def response_body
+          render(locals: { log_entry: log },
+                 prefixes: ["#{::OpenProject::Webhooks::Engine.root}/app/cells/views"]).html_safe
+        end
+      end
+    end
+  end
+end

modules/webhooks/app/cells/webhooks/outgoing/deliveries/table_cell.rb

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+module ::Webhooks
+  module Outgoing
+    module Deliveries
+      class TableCell < ::TableCell
+        columns :id, :event_name, :time, :response_code, :response_body
+
+        def sortable?
+          false
+        end
+
+        def empty_row_message
+          I18n.t 'webhooks.outgoing.deliveries.no_results_table'
+        end
+
+        def headers
+          [
+              ['id', caption: I18n.t('attributes.id')],
+              ['event_name', caption: ::Webhooks::Log.human_attribute_name('event_name')],
+              ['time', caption: I18n.t('webhooks.outgoing.deliveries.time')],
+              ['response_code', caption: ::Webhooks::Log.human_attribute_name('response_code')],
+              ['response_body', caption: ::Webhooks::Log.human_attribute_name('response_body')],
+          ]
+        end
+      end
+    end
+  end
+end

modules/webhooks/app/cells/webhooks/outgoing/webhooks/row_cell.rb

@@ -0,0 +1,83 @@
+module ::Webhooks
+  module Outgoing
+    module Webhooks
+      class RowCell < ::RowCell
+        include ::IconsHelper
+
+        def webhook
+          model
+        end
+
+        def name
+          link_to webhook.name,
+                  { controller: table.target_controller, action: :show, webhook_id: webhook.id }
+        end
+
+        def enabled
+          if webhook.enabled?
+            op_icon 'icon-yes'
+          end
+        end
+
+        def events
+          selected_events =
+            webhook
+              .events
+              .pluck(:name)
+              .map(&method(:lookup_event_name))
+              .compact
+              .uniq
+
+          count = selected_events.count
+          if count <= 3
+            selected_events.join(', ')
+          else
+            content_tag('span', count, class: 'badge -border-only')
+          end
+        end
+
+        def lookup_event_name(name)
+          OpenProject::Webhooks::EventResources.lookup_resource_name(name)
+        end
+
+        def selected_projects
+          selected = webhook.projects.map(&:name)
+
+          if selected.empty?
+            "(#{I18n.t(:label_all)})"
+          elsif selected.size <= 3
+            webhook.projects.pluck(:name).join(', ')
+          else
+            content_tag('span', selected, class: 'badge -border-only')
+          end
+        end
+
+        def row_css_class
+          [
+            'webhooks--outgoing-webhook-row',
+            "webhooks--outgoing-webhook-row-#{model.id}"
+          ].join(' ')
+        end
+
+        ###
+
+        def button_links
+          [edit_link, delete_link]
+        end
+
+        def edit_link
+          link_to I18n.t(:button_edit),
+                  { controller: table.target_controller, action: :edit, webhook_id: webhook.id },
+                  class: 'button--link'
+        end
+
+        def delete_link
+          link_to I18n.t(:button_delete),
+                  { controller: table.target_controller, action: :destroy, webhook_id: webhook.id },
+                  data: { method: 'delete', confirm: I18n.t(:text_are_you_sure) },
+                  class: 'button--link'
+        end
+      end
+    end
+  end
+end

modules/webhooks/app/cells/webhooks/outgoing/webhooks/table_cell.rb

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+module ::Webhooks
+  module Outgoing
+    module Webhooks
+      class TableCell < ::TableCell
+        columns :name, :enabled, :selected_projects, :events, :description
+
+        def initial_sort
+          [:id, :asc]
+        end
+
+        def target_controller
+          'webhooks/outgoing/admin'
+        end
+
+        def sortable?
+          false
+        end
+
+        def inline_create_link
+          link_to({ controller: target_controller, action: :new },
+                  class: 'webhooks--add-row wp-inline-create--add-link',
+                  title: I18n.t('webhooks.outgoing.label_add_new')) do
+              op_icon('icon icon-add')
+          end
+        end
+
+        def empty_row_message
+          I18n.t 'webhooks.outgoing.no_results_table'
+        end
+
+        def headers
+          [
+              ['name', caption: I18n.t('attributes.name')],
+              ['enabled', caption: I18n.t(:label_active)],
+              ['selected_projects', caption: ::Webhooks::Webhook.human_attribute_name('projects')],
+              ['events', caption: I18n.t('webhooks.outgoing.label_event_resources')],
+              ['description', caption: I18n.t('attributes.description')]
+          ]
+        end
+      end
+    end
+  end
+end

modules/webhooks/app/controllers/webhooks/incoming/hooks_controller.rb

@@ -0,0 +1,51 @@
+#-- encoding: UTF-8
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.md for more details.
+#++
+
+require 'json'
+
+module Webhooks
+  module Incoming
+    class HooksController < ApplicationController
+      accept_key_auth :handle_hook
+
+      # Disable CSRF detection since we openly welcome POSTs here!
+      skip_before_action :verify_authenticity_token
+
+      # Wrap the JSON body as 'payload' param
+      # making it available as params[:payload]
+      wrap_parameters :payload
+
+      def api_request?
+        # OpenProject only allows API requests based on an Accept request header.
+        # Webhooks (at least GitHub) don't send an Accept header as they're not interested
+        # in any part of the response except the HTTP status code.
+        # Also handling requests with a application/json Content-Type as API requests
+        # should be safe regarding CSRF as browsers don't send forms as JSON.
+        super || request.content_type == "application/json"
+      end
+
+      def handle_hook
+        hook = OpenProject::Webhooks.find(params.require 'hook_name')
+
+        if hook
+          code = hook.handle(request, params, find_current_user)
+          head code.is_a?(Integer) ? code : 200
+        else
+          head :not_found
+        end
+      end
+    end
+  end
+end

modules/webhooks/app/controllers/webhooks/outgoing/admin_controller.rb

@@ -0,0 +1,84 @@
+module Webhooks
+  module Outgoing
+    class AdminController < ::ApplicationController
+      layout 'admin'
+      menu_item :plugin_webhooks
+
+      before_action :require_admin
+      before_action :find_webhook, only: [:show, :edit, :update, :destroy]
+
+      def index
+        @webhooks = webhook_class.all
+      end
+
+      def show; end
+      def edit; end
+
+      def new
+        @webhook = webhook_class.new_default
+      end
+
+      def create
+        service = ::Webhooks::Outgoing::UpdateWebhookService.new(webhook_class.new_default, current_user: current_user)
+        action = service.call(attributes: permitted_webhooks_params)
+        if action.success?
+          flash[:notice] = I18n.t(:notice_successful_create)
+          redirect_to action: :index
+        else
+          @webhook = action.result
+          render action: :new
+        end
+      end
+
+      def update
+        service = ::Webhooks::Outgoing::UpdateWebhookService.new(@webhook, current_user: current_user)
+        action = service.call(attributes: permitted_webhooks_params)
+        if action.success?
+          flash[:notice] = I18n.t(:notice_successful_update)
+          redirect_to action: :index
+        else
+          @webhook = action.result
+          render action: :edit
+        end
+      end
+
+      def destroy
+        if @webhook.destroy
+          flash[:notice] = I18n.t(:notice_successful_delete)
+        else
+          flash[:error] = I18n.t(:error_failed_to_delete_entry)
+        end
+
+        redirect_to action: :index
+      end
+
+      private
+
+      def find_webhook
+        @webhook = webhook_class.find(params[:webhook_id])
+      rescue ActiveRecord::RecordNotFound
+        render_404
+      end
+
+      def webhook_class
+        ::Webhooks::Webhook
+      end
+
+      def permitted_webhooks_params
+        params
+          .require(:webhook)
+          .permit(:name, :description, :url, :secret, :enabled,
+                  :project_ids, selected_project_ids: [], events: [])
+
+      end
+
+      def show_local_breadcrumb
+        true
+      end
+
+      def default_breadcrumb
+        []
+      end
+    end
+  end
+end

modules/webhooks/app/models/webhooks.rb

@@ -0,0 +1,5 @@
+module Webhooks
+  def self.table_name_prefix
+    'webhooks_'
+  end
+end

modules/webhooks/app/models/webhooks/event.rb

@@ -0,0 +1,7 @@
+module Webhooks
+  class Event < ActiveRecord::Base
+    belongs_to :webhook
+    validates_associated :webhook
+    validates_presence_of :name
+  end
+end

modules/webhooks/app/models/webhooks/log.rb

@@ -0,0 +1,19 @@
+module Webhooks
+  class Log < ActiveRecord::Base
+    belongs_to :webhook, foreign_key: :webhooks_webhook_id, class_name: '::Webhooks::Webhook', dependent: :destroy
+
+    validates :url, presence: true
+    validates :event_name, presence: true
+    validates :response_code, presence: true
+
+    serialize :response_headers, Hash
+    serialize :request_headers, Hash
+
+    validates :request_headers, presence: true
+    validates :request_body, presence: true
+
+    def self.newest(limit: 10)
+      order(updated_at: :desc).limit(limit)
+    end
+  end
+end

modules/webhooks/app/models/webhooks/project.rb

@@ -0,0 +1,8 @@
+module Webhooks
+  class Project < ActiveRecord::Base
+    belongs_to :webhook
+    belongs_to :project, class_name: '::Project'
+
+    validates_presence_of :project
+  end
+end

modules/webhooks/app/models/webhooks/webhook.rb

@@ -0,0 +1,46 @@
+module Webhooks
+  class Webhook < ActiveRecord::Base
+    default_scope { order(id: :asc) }
+
+    validates_presence_of :name
+    validates_presence_of :url
+
+    validates_uniqueness_of :name
+    validates :url, url: true
+
+    has_many :events, foreign_key: :webhooks_webhook_id, class_name: '::Webhooks::Event', dependent: :delete_all
+    has_many :webhook_projects, foreign_key: :webhooks_webhook_id, class_name: '::Webhooks::Project', dependent: :delete_all
+    has_many :projects, through: :webhook_projects
+    has_many :deliveries, foreign_key: :webhooks_webhook_id, class_name: '::Webhooks::Log', dependent: :delete_all
+
+    def self.enabled
+      where(enabled: true)
+    end
+
+    def self.with_event_name(event_name)
+      enabled
+        .joins(:events)
+        .where("#{::Webhooks::Event.table_name}.name" => event_name)
+    end
+
+    def self.new_default
+      new all_projects: true, enabled: true
+    end
+
+    def all_projects?
+      !!all_projects
+    end
+
+    def enabled?
+      !!enabled
+    end
+
+    def event_names
+      events.pluck(:name)
+    end
+
+    def event_names=(names)
+      self.events = names.map { |name| events.build(name: name) }
+    end
+  end
+end

modules/webhooks/app/services/webhooks/outgoing/update_webhook_service.rb

@@ -0,0 +1,50 @@
+module Webhooks
+  module Outgoing
+    class UpdateWebhookService
+      attr_reader :current_user
+      attr_reader :webhook
+
+      def initialize(webhook, current_user:)
+        @current_user = current_user
+        @webhook = webhook
+      end
+
+      def call(attributes: {})
+        ::Webhooks::Webhook.transaction do
+          set_attributes attributes
+          raise ActiveRecord::Rollback unless (webhook.errors.empty? && webhook.save)
+        end
+
+        ServiceResult.new success: webhook.errors.empty? , errors: webhook.errors, result: webhook
+      end
+
+      private
+
+      def set_attributes(params)
+        set_selected_projects!(params)
+        set_selected_events!(params)
+
+        webhook.attributes = params
+      end
+
+      def set_selected_events!(params)
+        webhook.event_names = params.delete(:events).select(&:present?)
+      end
+
+      def set_selected_projects!(params)
+        option = params.delete :project_ids
+        selected = params.delete :selected_project_ids
+
+        if option == 'all'
+          webhook.all_projects = true
+        else
+          webhook.all_projects = false
+          webhook.project_ids = selected
+        end
+      rescue ActiveRecord::RecordInvalid, ActiveRecord::RecordNotFound => e
+        Rails.logger.error "Failed to set project association on webhook: #{e}"
+        webhook.errors.add :project_ids, :invalid
+      end
+    end
+  end
+end

modules/webhooks/app/views/webhooks/outgoing/admin/_form.html.erb

@@ -0,0 +1,98 @@
+<fieldset class="form--fieldset">
+  <p>
+    <%= t 'webhooks.outgoing.form.introduction' %>
+    <br/>
+    <%= link_to t('webhooks.outgoing.form.apiv3_doc_url'), OpenProject::Static::Links.links[:api_docs][:href] %>
+  </p>
+
+  <div class="form--field">
+    <%= f.text_field :name, required: true, container_class: '-middle' %>
+  </div>
+
+  <div class="form--field">
+      <%= f.url_field :url, required: true, container_class: '-wide' %>
+  </div>
+
+  <div class="form--field">
+    <%= f.text_area :description, placeholder: t('webhooks.outgoing.form.description.placeholder'), container_class: '-wide' %>
+  </div>
+
+  <div class="form--field">
+    <%= f.text_field :secret, container_class: '-wide' %>
+    <div class="form--field-instructions">
+      <%= t('webhooks.outgoing.form.secret.description') %>
+    </div>
+  </div>
+
+  <div class="form--field">
+    <%= f.check_box :enabled %>
+    <div class="form--field-instructions">
+      <%= t('webhooks.outgoing.form.enabled.description') %>
+    </div>
+  </div>
+</fieldset>
+
+<fieldset class="form--fieldset" id="webhooks-selected-events">
+  <legend class="form--fieldset-legend" title="<%= t 'webhooks.outgoing.form.events.title' %>">
+      <%= t 'webhooks.outgoing.form.events.title' %>
+  </legend>
+  <div class="form--fieldset-control">
+    <span class="form--fieldset-control-container">
+        (<%= check_all_links 'webhooks-selected-events' %>)
+    </span>
+  </div>
+
+  <% event_names = @webhook.event_names %>
+  <% OpenProject::Webhooks::EventResources.available_events_map.each do |resource_label, events|  %>
+    <div class="form--field">
+      <label class="form--label"><%= resource_label %></label>
+      <div class="form--field-container -vertical">
+        <% events.each do |key, label| %>
+          <label class="form--label-with-check-box">
+            <%= styled_check_box_tag 'webhook[events][]',
+                              key,
+                              event_names.include?(key) -%>
+            <%= label %>
+          </label>
+        <% end %>
+      </div>
+    </div>
+  <% end %>
+</fieldset>
+
+<fieldset class="form--fieldset">
+  <legend class="form--fieldset-legend" title="<%= 'webhooks.outgoing.form.project_ids.title' %>">
+    <%= t 'webhooks.outgoing.form.project_ids.title' %>
+  </legend>
+  <p><%= t('webhooks.outgoing.form.project_ids.description') %></p>
+  <div class="form--field">
+      <%= f.radio_button :project_ids,
+                         'all',
+                         checked: @webhook.all_projects?,
+                         label: t('webhooks.outgoing.form.project_ids.all'),
+                         container_class: '-wide' %>
+  </div>
+  <div class="form--field">
+      <%= f.radio_button :project_ids,
+                         'selection',
+                         checked: !@webhook.all_projects?,
+                         label: t('webhooks.outgoing.form.project_ids.selected'),
+                         container_class: '-wide' %>
+  </div>
+
+  <div class="form--field">
+    <label class="form--label"><%= t 'webhooks.outgoing.form.selected_project_ids.title' %></label>
+    <div class="form--field-container -vertical">
+      <% Project.pluck(:id, :name).each do |id, name| %>
+        <label class="form--label-with-check-box">
+          <%= styled_check_box_tag 'webhook[selected_project_ids][]',
+                            id,
+                            !@webhook.all_projects? && @webhook.project_ids.include?(id),
+                            disabled: @webhook.all_projects?,
+                            class: 'webhooks--selected-project-ids' -%>
+          <%= name %>
+        </label>
+      <% end %>
+    </div>
+  </div>
+</fieldset>

modules/webhooks/app/views/webhooks/outgoing/admin/_header_tags.html.erb

@@ -0,0 +1,4 @@
+<% content_for :header_tags do %>
+  <%= stylesheet_link_tag('webhooks/webhooks.css') %>
+  <%= javascript_include_tag('webhooks/webhooks.js') %>
+<% end %>

modules/webhooks/app/views/webhooks/outgoing/admin/edit.html.erb

@@ -0,0 +1,23 @@
+
+<%= render partial: 'header_tags' %>
+<% html_title(t(:label_administration), t('webhooks.outgoing.label_edit')) -%>
+<% local_assigns[:additional_breadcrumb] = [
+  link_to(t('webhooks.plural'), admin_outgoing_webhooks_path),
+  t('webhooks.outgoing.label_edit')
+  ]
+%>
+
+<%= toolbar title: t('webhooks.outgoing.label_edit') %>
+
+<%= error_messages_for @webhook %>
+
+<%= labelled_tabular_form_for @webhook,
+                              url: { action: :update },
+                              as: 'webhook',
+                              html: { class: 'form', autocomplete: 'off' } do |f| %>
+  <%= render partial: "form", locals: { f: f, webhook: @webhook } %>
+  <p>
+    <%= styled_button_tag l(:button_save), class: '-highlight -with-icon icon-checkmark' %>
+    <%= link_to t(:button_cancel), { action: :index }, class: 'button' %>
+  </p>
+<% end %>

modules/webhooks/app/views/webhooks/outgoing/admin/index.html.erb

@@ -0,0 +1,19 @@
+<%= render partial: 'header_tags' %>
+
+<% html_title(t(:label_administration), t('webhooks.plural')) -%>
+<% local_assigns[:additional_breadcrumb] = t('webhooks.plural') %>
+
+<%= toolbar title: t('webhooks.plural') do %>
+  <li class="toolbar-item">
+    <%= link_to new_admin_outgoing_webhook_path,
+          { class: 'button -alt-highlight',
+            aria: {label: t('webhooks.outgoing.label_add_new')},
+            title: t('webhooks.outgoing.label_add_new')} do %>
+      <%= op_icon('button--icon icon-add') %>
+      <span class="button--text"><%= t('webhooks.singular') %></span>
+    <% end %>
+  </li>
+<% end %>
+
+<%= cell ::Webhooks::Outgoing::Webhooks::TableCell, @webhooks %>
+

modules/webhooks/app/views/webhooks/outgoing/admin/new.html.erb

@@ -0,0 +1,23 @@
+
+<%= render partial: 'header_tags' %>
+<% html_title(t(:label_administration), t('webhooks.outgoing.label_add_new')) -%>
+<% local_assigns[:additional_breadcrumb] = [
+  link_to(t('webhooks.plural'), admin_outgoing_webhooks_path),
+  t('webhooks.outgoing.label_add_new')
+  ]
+%>
+
+<%= toolbar title: t('webhooks.outgoing.label_add_new') %>
+
+<%= error_messages_for @webhook %>
+
+<%= labelled_tabular_form_for @webhook,
+                              url: { action: :create },
+                              as: 'webhook',
+                              html: { class: 'form', autocomplete: 'off' } do |f| %>
+  <%= render partial: "form", locals: { f: f, webhook: @webhook } %>
+  <p>
+    <%= styled_button_tag l(:button_create), class: '-highlight -with-icon icon-checkmark' %>
+    <%= link_to t(:button_cancel), { action: :index }, class: 'button' %>
+  </p>
+<% end %>

modules/webhooks/app/views/webhooks/outgoing/admin/show.html.erb

@@ -0,0 +1,74 @@
+
+<%= render partial: 'header_tags' %>
+<% html_title(t(:label_administration), t('webhooks.singular'), @webhook.name) -%>
+<% local_assigns[:additional_breadcrumb] = [
+  link_to(t('webhooks.plural'), admin_outgoing_webhooks_path),
+  @webhook.name
+  ]
+%>
+
+<%= toolbar title: "#{t('webhooks.singular')} - #{@webhook.name}" do %>
+  <li class="toolbar-item">
+    <%= link_to edit_admin_outgoing_webhook_path(@webhook),
+          { class: 'button',
+            aria: {label: t(:label_edit)},
+            title: t(:label_edit)} do %>
+      <%= op_icon('button--icon icon-edit') %>
+      <span class="button--text"><%= t(:label_edit) %></span>
+    <% end %>
+  </li>
+  <li class="toolbar-item">
+    <%= link_to admin_outgoing_webhook_path(@webhook),
+                class: 'button -danger',
+                data: { method: 'delete', confirm: I18n.t(:text_are_you_sure) } do %>
+      <%= op_icon('button--icon icon-delete') %>
+      <span class="button--text"><%= t(:button_delete) %></span>
+    <% end %>
+  </li>
+<% end %>
+
+<%= cell ::Components::OnOffStatusCell,
+         is_on: @webhook.enabled?,
+         on_text: t('webhooks.outgoing.status.enabled'),
+         on_description: t('webhooks.outgoing.status.enabled_text'),
+         off_text: t('webhooks.outgoing.status.disabled'),
+         off_description: t('webhooks.outgoing.status.disabled_text') %>
+
+<div class="account--section">
+  <div class="attributes-group">
+    <div class="attributes-key-value">
+
+      <div class="attributes-key-value--key"><%= ::Webhooks::Webhook.human_attribute_name('events') %></div>
+      <div class="attributes-key-value--value-container">
+        <div class="attributes-key-value--value -text">
+          <span><%= @webhook.event_names.join(', ') %></span>
+        </div>
+      </div>
+
+      <div class="attributes-key-value--key"><%= ::Webhooks::Webhook.human_attribute_name('projects') %></div>
+      <div class="attributes-key-value--value-container">
+        <div class="attributes-key-value--value -text">
+          <span>
+            <% if @webhook.all_projects? %>
+              (<%= t(:label_all) %>)
+            <% else %>
+              <%= @webhook.projects.join(', ') %>
+            <% end %>
+          </span>
+        </div>
+      </div>
+
+      <div class="attributes-key-value--key"><%= ::Webhooks::Webhook.human_attribute_name('description') %></div>
+      <div class="attributes-key-value--value-container">
+        <div class="attributes-key-value--value -text">
+          <span><%= @webhook.description %></span>
+        </div>
+      </div>
+    </div>
+  </div>
+</div>
+
+<div class="account--section">
+  <h2><%= t 'webhooks.outgoing.deliveries.title' %></h2>
+  <%= cell ::Webhooks::Outgoing::Deliveries::TableCell, @webhook.deliveries.newest %>
+</div>

modules/webhooks/app/workers/webhook_job.rb

@@ -0,0 +1,34 @@
+#-- encoding: UTF-8
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2012-2017 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+# Copyright (C) 2006-2017 Jean-Philippe Lang
+# Copyright (C) 2010-2013 the ChiliProject Team
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.rdoc for more details.
+#++
+
+class WebhookJob < ApplicationJob
+  def perform
+
+  end
+end

modules/webhooks/app/workers/work_package_webhook_job.rb

@@ -0,0 +1,108 @@
+require 'rest-client'
+
+#-- encoding: UTF-8
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2012-2017 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+# Copyright (C) 2006-2017 Jean-Philippe Lang
+# Copyright (C) 2010-2013 the ChiliProject Team
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.rdoc for more details.
+#++
+
+class WorkPackageWebhookJob < WebhookJob
+  attr_reader :webhook_id
+  attr_reader :journal_id
+  attr_reader :event_name
+
+  def initialize(webhook_id, journal_id, event_name)
+    @webhook_id = webhook_id
+    @journal_id = journal_id
+    @event_name = event_name
+  end
+
+  def perform
+    body = request_body
+    headers = request_headers
+    exception = nil
+
+    if signature = request_signature(body)
+      headers['X-OP-Signature'] = signature
+    end
+
+    response = RestClient.post webhook.url, request_body, headers
+  rescue RestClient::Exception => e
+    response = e.response
+
+    raise e
+  rescue => e
+    exception = e
+
+    raise e
+  ensure
+    ::Webhooks::Log.create(
+      webhook: webhook,
+      event_name: event_name,
+      url: webhook.url,
+      request_headers: headers,
+      request_body: body,
+      response_code: response.try(:code).to_i,
+      response_headers: response.try(:headers),
+      response_body: response.try(:to_s) || exception.try(:message)
+    )
+  end
+
+  def request_signature(request_body)
+    if secret = webhook.secret.presence
+      'sha1=' + OpenSSL::HMAC.hexdigest(OpenSSL::Digest.new('sha1'), secret, request_body)
+    end
+  end
+
+  def request_headers
+    {
+      content_type: "application/json",
+      accept: "application/json"
+    }
+  end
+
+  def request_body
+    '{"action":"' + event_name + '","work_package":' + work_package_json + '}'
+  end
+
+  def work_package_json
+    ::API::V3::WorkPackages::WorkPackageRepresenter
+      .create(work_package, current_user: User.admin.first, embed_links: true)
+      .to_json
+  end
+
+  def work_package
+    journal.journable
+  end
+
+  def journal
+    @journal ||= Journal.find(journal_id)
+  end
+
+  def webhook
+    @webhook ||= Webhooks::Webhook.find(webhook_id)
+  end
+end

modules/webhooks/config/locales/en.yml

@@ -0,0 +1,57 @@
+en:
+  activerecord:
+    attributes:
+      webhooks/webhook:
+        url: 'Payload URL'
+        secret: 'Signature secret'
+        events: 'Events'
+        projects: 'Enabled projects'
+      webhooks/log:
+        event_name: 'Event name'
+        url: 'Payload URL'
+        response_code: 'Response code'
+        response_body: 'Response'
+    models:
+      webhooks/outgoing_webhook: "Outgoing webhook"
+  webhooks:
+    singular: Webhook
+    plural: Webhooks
+    outgoing:
+      no_results_table: No webhooks have been defined yet.
+      label_add_new: Add new webhook
+      label_edit: Edit webhook
+      label_event_resources: Event resources
+      events:
+        created: "Created"
+        updated: "Updated"
+      status:
+        enabled: 'Webhook is enabled'
+        disabled: 'Webhook is disabled'
+        enabled_text: 'The webhook will emit payloads for the defined events below.'
+        disabled_text: 'Click the edit button to activate the webhook.'
+      deliveries:
+        no_results_table: No deliveries have been made for this webhook.
+        title: 'Recent deliveries'
+        time: 'Delivery time'
+      form:
+        introduction: >
+          Send a POST request to the payload URL below for any event in the project your subscribe.
+          Payload will correspond to the APIv3 representation of the object being modified.
+        apiv3_doc_url: For more information, visit the API documentation
+        description:
+          placeholder: 'Optional description for the webhook.'
+        enabled:
+          description: >
+            When checked, the webhook will trigger on the selected events. Uncheck to disable the webhook.
+        events:
+          title: 'Enabled events'
+        project_ids:
+          title: 'Enabled projects'
+          description: 'Select for which projects this webhook should be executed for.'
+          all: 'All projects'
+          selected: 'Selected projects only'
+        selected_project_ids:
+          title: 'Selected projects'
+        secret:
+          description: >
+            If set, this secret value is used by OpenProject to sign the webhook payload.

modules/webhooks/config/routes.rb

@@ -0,0 +1,26 @@
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.md for more details.
+#++
+
+OpenProject::Application.routes.draw do
+  namespace 'webhooks' do
+    match ":hook_name", to: 'incoming/hooks#handle_hook', via: %i(get post)
+  end
+
+  scope 'admin' do
+    resources :webhooks,
+              param: :webhook_id,
+              controller: 'webhooks/outgoing/admin',
+              as: 'admin_outgoing_webhooks'
+  end
+end

modules/webhooks/db/migrate/20171218205557_add_webhooks.rb

@@ -0,0 +1,24 @@
+class AddWebhooks < ActiveRecord::Migration[5.0]
+  def change
+    create_table :webhooks_webhooks do |t|
+      t.string :name
+      t.text :url
+      t.text :description, null: false
+      t.string :secret, null: true
+      t.boolean :enabled, null: false
+      t.boolean :all_projects, null: false
+
+      t.timestamps
+    end
+
+    create_table :webhooks_events do |t|
+      t.string :name
+      t.references :webhooks_webhook, index: true, foreign_key: true
+    end
+
+    create_table :webhooks_projects do |t|
+      t.references :project, index: true, foreign_key: true
+      t.references :webhooks_webhook, index: true, foreign_key: true
+    end
+  end
+end

modules/webhooks/db/migrate/20171219145752_create_webhook_logs.rb

@@ -0,0 +1,19 @@
+class CreateWebhookLogs < ActiveRecord::Migration[5.0]
+  def change
+    create_table :webhooks_logs do |t|
+      t.references :webhooks_webhook, foreign_key: { on_delete: :cascade }
+
+      t.string :event_name
+      t.string :url
+
+      t.text :request_headers
+      t.text :request_body
+
+      t.integer :response_code
+      t.text :response_headers
+      t.text :response_body
+
+      t.timestamps
+    end
+  end
+end

modules/webhooks/doc/CHANGELOG.md

@@ -0,0 +1,18 @@
+<!---- copyright
+OpenProject is a project management system.
+Copyright (C) 2014 the OpenProject Foundation (OPF)
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License version 3.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+See doc/COPYRIGHT.md for more details.
+
+++-->
+
+# Changelog
+
+* `#<ticket number>` Create plugin

modules/webhooks/doc/COPYRIGHT.md

@@ -0,0 +1,16 @@
+OpenProject is a project management system.
+
+Copyright (C) 2013 the OpenProject Foundation (OPF)
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+version 3.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

modules/webhooks/doc/COPYRIGHT_short.md

@@ -0,0 +1,11 @@
+OpenProject is a project management system.
+Copyright (C) 2014 the OpenProject Foundation (OPF)
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License version 3.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+See doc/COPYRIGHT.md for more details.

modules/webhooks/doc/GPL.txt

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable.  Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products.  If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+  "The Program" refers to any copyrightable work licensed under this
+License.  Each licensee is addressed as "you".  "Licensees" and
+"recipients" may be individuals or organizations.
+
+  To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy.  The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+  A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+  To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy.  Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+  To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies.  Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+  An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License.  If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+  1. Source Code.
+
+  The "source code" for a work means the preferred form of the work
+for making modifications to it.  "Object code" means any non-source
+form of a work.
+
+  A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+  The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form.  A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+  The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities.  However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work.  For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+  The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+  The Corresponding Source for a work in source code form is that
+same work.
+
+  2. Basic Permissions.
+
+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
+permission to run the unmodified Program.  The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work.  This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+  You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
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+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

modules/webhooks/lib/open_project/webhooks.rb

@@ -0,0 +1,56 @@
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.md for more details.
+#++
+
+module OpenProject
+  module Webhooks
+    require "open_project/webhooks/engine"
+    require "open_project/webhooks/hook"
+
+    @@registered_hooks = []
+
+    ##
+    # Returns a list of currently active webhooks.
+    def self.registered_hooks
+      @@registered_hooks.dup
+    end
+
+    ##
+    # Registers a webhook having name and a callback.
+    # The name will be part of the webhook-url and may be used to unregister a webhook later.
+    # The callback is executed with two parameters when the webhook was called.
+    #    The parameters are the hook object, an environment-variables hash and a params hash of the current request.
+    # The callback may return an Integer, which is interpreted as a http return code.
+    #
+    # Returns the newly created hook
+    def self.register_hook(name, &callback)
+      raise "A hook named '#{name}' is already registered!" if find(name)
+      Rails.logger.warn "hook registered"
+      hook = Hook.new(name, &callback)
+      @@registered_hooks << hook
+      hook
+    end
+
+    # Unregisters a webhook. Might be usefull for tests only, because routes can not
+    # be redrawn in a running instance
+    def self.unregister_hook(name)
+      hook = find(name)
+      raise "A hook named '#{name}' was not registered!" unless find(name)
+      @@registered_hooks.delete hook
+    end
+
+    def self.find(name)
+      @@registered_hooks.find {|h| h.name == name}
+    end
+  end
+end

modules/webhooks/lib/open_project/webhooks/engine.rb

@@ -0,0 +1,47 @@
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.md for more details.
+#++
+
+require 'open_project/plugins'
+
+module OpenProject::Webhooks
+  class Engine < ::Rails::Engine
+    engine_name :openproject_webhooks
+
+    include OpenProject::Plugins::ActsAsOpEngine
+
+    register 'openproject-webhooks',
+             author_url: 'https://github.com/opf/openproject-webhooks' do
+        menu :admin_menu,
+             :plugin_webhooks,
+             { controller: 'webhooks/outgoing/admin', action: :index },
+             after: :plugins,
+             caption: ->(*) { I18n.t('webhooks.plural') },
+             icon: 'icon2 icon-relations'
+    end
+
+    config.before_configuration do |app|
+      # This is required for the routes to be loaded first as the routes should
+      # be prepended so they take precedence over the core.
+      app.config.paths['config/routes.rb'].unshift File.join(File.dirname(__FILE__), "..", "..", "..", "config", "routes.rb")
+    end
+
+    initializer 'webhooks.subscribe_to_notifications' do
+      ::OpenProject::Webhooks::EventResources.subscribe!
+    end
+
+    initializer 'webhooks.precompile_assets' do |app|
+      app.config.assets.precompile += %w(webhooks/webhooks.css webhooks/webhooks.js)
+    end
+  end
+end

modules/webhooks/lib/open_project/webhooks/event_resources.rb

@@ -0,0 +1,41 @@
+module OpenProject::Webhooks
+  module EventResources
+    class << self
+      def subscribe!
+        resource_modules.each do |handler|
+          handler.subscribe!
+        end
+      end
+
+      ##
+      # Return a complete mapping of all resource modules
+      # in the form { label => { event1: label , event2: label } }
+      def available_events_map
+        Hash[resource_modules.map { |m| [m.resource_name, m.available_events_map] }]
+      end
+
+      ##
+      # Find a module based on the event name
+      def lookup_resource_name(event_name)
+        resource = resource_modules.detect { |m| m.available_events_map.key?(event_name) }
+        resource.try(:resource_name)
+      end
+
+      def resource_modules
+        @resource_modules ||= begin
+          resources.map do |name|
+            begin
+              "OpenProject::Webhooks::EventResources::#{name.to_s.camelize}".constantize
+            rescue NameError => e
+              raise ArgumentError, "Failed to initialize resources module for #{name}: #{e}"
+            end
+          end
+        end
+      end
+
+      def resources
+        %i(work_package)
+      end
+    end
+  end
+end

modules/webhooks/lib/open_project/webhooks/event_resources/base.rb

@@ -0,0 +1,77 @@
+module OpenProject::Webhooks::EventResources
+  class Base
+    class << self
+
+      ##
+      # Subscribe for events on this resource schedule the respective
+      # webhooks, if any.
+      def subscribe!
+        notification_names.each do |key|
+          OpenProject::Notifications.subscribe(key) do |payload|
+            begin
+              Rails.logger.debug { "[Webhooks Plugin] Handling notification for '#{key}'." }
+              handle_notification(payload, key)
+            rescue => e
+              Rails.logger.error { "[Webhooks Plugin] Failed notification handling for '#{key}': #{e}" }
+            end
+          end
+        end
+      end
+
+      ##
+      # Return a mapping of event key to its localized name
+      def available_events_map
+        Hash[available_actions.map { |symbol| [ prefixed_event_name(symbol), localize_event_name(symbol) ] }]
+      end
+
+      ##
+      # Get the prefix key for this module
+      def prefix_key
+        name.demodulize.underscore
+      end
+
+      ##
+      # Create a prefixed event name
+      def prefixed_event_name(action)
+        "#{prefix_key}:#{action}"
+      end
+
+
+      def available_actions
+        raise NotImplementedError
+      end
+
+      ##
+      # Localize the given event name
+      def localize_event_name(key)
+        I18n.t(key, scope: 'webhooks.outgoing.events')
+      end
+
+      ##
+      # Get the name of this resource
+      def resource_name
+        raise NotImplementedError
+      end
+
+      ##
+      # Get the subscriptions for OP::Notifications
+      def notification_names
+        raise NotImplementedError
+      end
+
+      protected
+
+      ##
+      # Callback for OP::Notification
+      def handle_notification(payload, event_name)
+        raise NotImplementedError
+      end
+
+      ##
+      # Base scope for active webhooks, helper for subclasses
+      def active_webhooks
+        ::Webhooks::Webhook.where(enabled: true)
+      end
+    end
+  end
+end

modules/webhooks/lib/open_project/webhooks/event_resources/work_package.rb

@@ -0,0 +1,31 @@
+require_relative 'base'
+
+module OpenProject::Webhooks::EventResources
+  class WorkPackage < Base
+    class << self
+      def notification_names
+        [
+          OpenProject::Events::AGGREGATED_WORK_PACKAGE_JOURNAL_READY
+        ]
+      end
+
+      def available_actions
+        %i(updated created)
+      end
+
+      def resource_name
+        I18n.t :label_work_package_plural
+      end
+
+      protected
+
+      def handle_notification(payload, event_name)
+        action = payload[:initial] ? "created" : "updated"
+        event_name = prefixed_event_name(action)
+        active_webhooks.with_event_name(event_name).pluck(:id).each do |id|
+          Delayed::Job.enqueue WorkPackageWebhookJob.new(id, payload[:journal_id], event_name)
+        end
+      end
+    end
+  end
+end

modules/webhooks/lib/open_project/webhooks/hook.rb

@@ -0,0 +1,34 @@
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.md for more details.
+#++
+
+module OpenProject::Webhooks
+  class Hook
+    attr_accessor :name, :callback
+
+    def initialize(name, &callback)
+      super()
+      @name = name
+      @callback = callback
+    end
+
+    def relative_url
+      "webhooks/#{name}"
+    end
+
+    def handle(request = Hash.new, params = Hash.new, user = nil)
+      callback.call self, request, params, user
+    end
+
+  end
+end

modules/webhooks/lib/open_project/webhooks/version.rb

@@ -0,0 +1,19 @@
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.md for more details.
+#++
+
+module OpenProject
+  module Webhooks
+    VERSION = "8.2.0"
+  end
+end

modules/webhooks/lib/openproject-webhooks.rb

@@ -0,0 +1,15 @@
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.md for more details.
+#++
+
+require 'open_project/webhooks'

modules/webhooks/openproject-webhooks.gemspec

@@ -0,0 +1,20 @@
+# encoding: UTF-8
+$:.push File.expand_path("../lib", __FILE__)
+
+require 'open_project/webhooks/version'
+# Describe your gem and declare its dependencies:
+Gem::Specification.new do |s|
+  s.name        = "openproject-webhooks"
+  s.version     = OpenProject::Webhooks::VERSION
+  s.authors     = "OpenProject GmbH"
+  s.email       = "info@openproject.com"
+  s.homepage    = "https://community.openproject.org/projects/webhooks"
+  s.summary     = 'OpenProject Webhooks'
+  s.description = 'Provides a plug-in API to support OpenProject webhooks for better 3rd party integration'
+  s.license     = 'GPLv3'
+
+  s.files = Dir["{app,config,db,doc,lib}/**/*"] + %w(README.md)
+
+  s.add_dependency 'rails', '~> 5.0'
+  
+end

modules/webhooks/spec/controllers/outgoing/admin_controller_spec.rb

@@ -0,0 +1,223 @@
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.md for more details.
+#++
+
+require 'spec_helper'
+
+describe ::Webhooks::Outgoing::AdminController, type: :controller do
+  let(:user) { FactoryBot.build_stubbed :admin }
+
+  before do
+    login_as user
+  end
+
+  context 'when not admin' do
+    let(:user) { FactoryBot.build_stubbed :user }
+
+    it 'renders 403' do
+      get :index
+      expect(response.status).to eq 403
+    end
+  end
+
+  context 'when not logged in' do
+    let(:user) { User.anonymous }
+
+    it 'renders 403' do
+      get :index
+      expect(response.status).to redirect_to(signin_url(back_url: admin_outgoing_webhooks_url))
+    end
+  end
+
+  describe '#index' do
+    it 'renders the index page' do
+      get :index
+      expect(response).to be_success
+      expect(response).to render_template 'index'
+    end
+  end
+
+  describe '#new' do
+    it 'renders the new page' do
+      get :new
+      expect(response).to be_success
+      expect(assigns[:webhook]).to be_new_record
+      expect(response).to render_template 'new'
+    end
+  end
+
+  describe '#create' do
+    let(:service) { double(::Webhooks::Outgoing::UpdateWebhookService) }
+    let(:webhook_params) do
+      {
+        name: 'foo',
+        enabled: true
+      }
+    end
+
+    describe 'with invalid params' do
+      it 'renders an error' do
+        post :create, params: { foo: 'bar' }
+        expect(response).not_to be_success
+      end
+    end
+
+    describe 'Calling the service' do
+      before do
+        expect(::Webhooks::Outgoing::UpdateWebhookService)
+          .to receive(:new)
+          .and_return service
+
+        expect(service)
+          .to receive(:call)
+          .and_return(ServiceResult.new success: success)
+
+        post :create, params: { webhook: webhook_params}
+      end
+
+      context 'when success' do
+        let(:success) { true }
+
+        it 'renders success' do
+          expect(flash[:notice]).to be_present
+          expect(response).to redirect_to(action: :index)
+        end
+      end
+
+      context 'when not success' do
+        let(:success) { false }
+        it 'renders the form again' do
+          expect(flash[:notice]).not_to be_present
+          expect(response).to render_template 'new'
+        end
+      end
+    end
+  end
+
+  describe '#edit' do
+    context 'when found' do
+      before do
+        expect(::Webhooks::Webhook)
+          .to receive(:find)
+          .and_return(double(::Webhooks::Webhook))
+      end
+
+      it 'renders the edit page' do
+        get :edit, params: { webhook_id: 'mocked' }
+        expect(response).to be_success
+        expect(assigns[:webhook]).to be_present
+        expect(response).to render_template 'edit'
+      end
+    end
+
+    context 'when not found' do
+      it 'renders 404' do
+        get :edit, params: { webhook_id: '1234' }
+        expect(response).not_to be_success
+        expect(response.status).to eq 404
+      end
+    end
+  end
+
+  describe '#update' do
+    let(:service) { double(::Webhooks::Outgoing::UpdateWebhookService) }
+    let(:webhook_params) do
+      {
+        name: 'foo',
+        enabled: true
+      }
+    end
+
+    describe 'when not found' do
+      it 'renders an error' do
+        put :update, params: { webhook_id: 'bar' }
+        expect(response).not_to be_success
+        expect(response.status).to eq 404
+      end
+    end
+
+    describe 'Calling the service' do
+      let(:webhook) { double(::Webhooks::Webhook) }
+
+      before do
+        allow(::Webhooks::Webhook)
+          .to receive(:find)
+          .and_return(webhook)
+
+        expect(::Webhooks::Outgoing::UpdateWebhookService)
+          .to receive(:new)
+          .and_return service
+
+        expect(service)
+          .to receive(:call)
+          .and_return(ServiceResult.new success: success)
+
+        put :update, params: { webhook_id: '1234', webhook: webhook_params}
+      end
+
+      context 'when success' do
+        let(:success) { true }
+
+        it 'renders success' do
+          expect(flash[:notice]).to be_present
+          expect(response).to redirect_to(action: :index)
+        end
+      end
+
+      context 'when not success' do
+        let(:success) { false }
+
+        it 'renders the form again' do
+          expect(flash[:notice]).not_to be_present
+          expect(response).to render_template 'edit'
+        end
+      end
+    end
+  end
+
+  describe '#destroy' do
+    let(:webhook) { double(::Webhooks::Webhook) }
+
+    context 'when found' do
+      before do
+        expect(::Webhooks::Webhook)
+          .to receive(:find)
+          .and_return(webhook)
+
+        expect(webhook)
+          .to receive(:destroy)
+          .and_return(success)
+      end
+
+      context 'when delete failed' do
+        let(:success) { false }
+
+        it 'redirects to index' do
+          delete :destroy, params: { webhook_id: 'mocked' }
+          expect(response).to be_redirect
+          expect(flash[:notice]).not_to be_present
+          expect(flash[:error]).to be_present
+        end
+      end
+
+      context 'when delete success' do
+        let(:success) { true }
+        it 'destroys the object' do
+          delete :destroy, params: { webhook_id: 'mocked' }
+          expect(response).to be_redirect
+          expect(flash[:notice]).to be_present
+        end
+      end
+    end
+  end
+end

modules/webhooks/spec/controllers/webhooks_controller_spec.rb

@@ -0,0 +1,50 @@
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.md for more details.
+#++
+
+require File.expand_path('../../spec_helper', __FILE__)
+
+
+describe Webhooks::Incoming::HooksController, :type => :controller do
+  let(:hook) { double(OpenProject::Webhooks::Hook) }
+  let(:user) { double(User).as_null_object }
+
+  describe '#handle_hook' do
+    before do
+      expect(OpenProject::Webhooks).to receive(:find).with('testhook').and_return(hook)
+      allow(controller).to receive(:find_current_user).and_return(user)
+    end
+
+    after do
+      # ApplicationController before filter user_setup sets a user
+      User.current = nil
+    end
+
+    it 'should be successful' do
+      expect(hook).to receive(:handle)
+
+      post :handle_hook, params: { hook_name: 'testhook' }
+
+      expect(response).to be_success
+    end
+
+    it 'should call the hook with a user' do
+      expect(hook).to receive(:handle) { |env, params, user|
+        expect(user).to equal(user)
+      }
+
+      post :handle_hook, params: { hook_name: 'testhook' }
+    end
+
+  end
+end

modules/webhooks/spec/factories/webhook_factory.rb

@@ -0,0 +1,38 @@
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2012-2017 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+# Copyright (C) 2006-2017 Jean-Philippe Lang
+# Copyright (C) 2010-2013 the ChiliProject Team
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.rdoc for more details.
+#++
+
+FactoryBot.define do
+  factory :webhook, class: Webhooks::Webhook do
+    name "Example Webhook"
+    url "http://example.net/webhook_receiver/42"
+    description "This is an example webhook"
+    secret "42"
+    enabled true
+    all_projects true
+  end
+end

modules/webhooks/spec/factories/webhook_log_factory.rb

@@ -0,0 +1,40 @@
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2012-2017 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+# Copyright (C) 2006-2017 Jean-Philippe Lang
+# Copyright (C) 2010-2013 the ChiliProject Team
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.rdoc for more details.
+#++
+
+FactoryBot.define do
+  factory :webhook_log, class: Webhooks::Log do
+    webhook factory: :webhook
+    url "http://example.net/webhook_receiver/42"
+    event_name 'foobar'
+    response_code '200'
+    request_headers({ foo: :bar })
+    request_body 'Request body'
+    response_headers({ response: :foo })
+    response_body 'Response body'
+  end
+end

modules/webhooks/spec/features/manage_webhooks_spec.rb

@@ -0,0 +1,102 @@
+require 'spec_helper'
+
+describe 'Manage webhooks through UI', type: :feature, js: true do
+  before do
+    login_as user
+  end
+
+  context 'as regular user' do
+    let(:user) { FactoryBot.create :user }
+
+    it 'forbids accessing the webhooks management view' do
+      visit admin_outgoing_webhooks_path
+      expect(page).to have_selector('h2', text: '403')
+    end
+  end
+
+  context 'as admin' do
+    let(:user) { FactoryBot.create :admin }
+    let!(:project) { FactoryBot.create :project }
+
+    it 'allows the management flow' do
+      visit admin_outgoing_webhooks_path
+      expect(page).to have_selector('.generic-table--empty-row')
+
+      # Visit inline create
+      find('.wp-inline-create--add-link').click
+
+      # Fill in elements
+      fill_in 'webhook_name', with: 'My webhook'
+      fill_in 'webhook_url', with: 'http://example.org'
+
+      # Check one event
+      find('.form--check-box[value="work_package:created"]').set true
+
+      # Create
+      click_on 'Create'
+
+      #
+      # 1st webhook created
+      #
+
+      expect(page).to have_selector('.flash.notice', text: I18n.t(:notice_successful_create))
+      expect(page).to have_selector('.webhooks--outgoing-webhook-row .name', text: 'My webhook')
+      webhook = ::Webhooks::Webhook.last
+      expect(webhook.event_names).to eq %w(work_package:created)
+      expect(webhook.all_projects).to be_truthy
+
+      expect(page).to have_selector('.webhooks--outgoing-webhook-row .enabled .icon-yes')
+      expect(page).to have_selector('.webhooks--outgoing-webhook-row .selected_projects', text: '(all)')
+      expect(page).to have_selector('.webhooks--outgoing-webhook-row .events', text: 'Work packages')
+      expect(page).to have_selector('.webhooks--outgoing-webhook-row .description', text: webhook.description)
+
+      # Edit this webhook
+      find(".webhooks--outgoing-webhook-row-#{webhook.id} a", text: 'Edit').click
+
+      # Check the other event
+      find('.form--check-box[value="work_package:created"]').set false
+      find('.form--check-box[value="work_package:updated"]').set true
+
+      # Check a subset of projects
+      choose 'webhook_project_ids_selection'
+      find(".webhooks--selected-project-ids[value='#{project.id}']").set true
+
+      click_on 'Save'
+      expect(page).to have_selector('.flash.notice', text: I18n.t(:notice_successful_update))
+      expect(page).to have_selector('.webhooks--outgoing-webhook-row .name', text: 'My webhook')
+      webhook = ::Webhooks::Webhook.last
+      expect(webhook.event_names).to eq %w(work_package:updated)
+      expect(webhook.projects.all).to eq [project]
+      expect(webhook.all_projects).to be_falsey
+
+      # Delete webhook
+      find(".webhooks--outgoing-webhook-row-#{webhook.id} a", text: 'Delete').click
+      page.driver.browser.switch_to.alert.accept
+
+      expect(page).to have_selector('.flash.notice', text: I18n.t(:notice_successful_delete))
+      expect(page).to have_selector('.generic-table--empty-row')
+    end
+
+    context 'with existing webhook' do
+      let!(:webhook) { FactoryBot.create :webhook, name: 'testing' }
+      let!(:log) { FactoryBot.create :webhook_log, response_headers: { test: :foo }, webhook: webhook }
+
+      it 'shows the delivery' do
+        visit admin_outgoing_webhooks_path
+        find('.webhooks--outgoing-webhook-row .name a', text: 'testing').click
+
+        expect(page).to have_selector('.on-off-status.-enabled')
+        expect(page).to have_selector('td.event_name', text: 'foo')
+        expect(page).to have_selector('td.response_code', text: '200')
+
+        # Open modal
+        find('td.response_body a', text: 'Show').click
+
+        page.within('.webhooks--response-body-modal') do
+          expect(page).to have_selector('.webhooks--response-headers strong', text: 'test')
+          expect(page).to have_selector('.webhooks--response-body', text: log.response_body)
+        end
+      end
+    end
+  end
+end

modules/webhooks/spec/lib/hook_spec.rb

@@ -0,0 +1,39 @@
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.md for more details.
+#++
+
+require File.expand_path('../../spec_helper', __FILE__)
+
+
+describe OpenProject::Webhooks::Hook do
+  describe '#relative_url' do
+    let(:hook) { OpenProject::Webhooks::Hook.new('myhook')}
+
+    it "should return the correct URL" do
+      expect(hook.relative_url).to eql('webhooks/myhook')
+    end
+  end
+
+  describe '#handle' do
+    let(:probe) { lambda{} }
+    let(:hook) { OpenProject::Webhooks::Hook.new('myhook', &probe) }
+
+    before do
+      expect(probe).to receive(:call).with(hook, 1, 2, 3)
+    end
+
+    it 'should execute the callback with the correct parameters' do
+      hook.handle(1, 2, 3)
+    end
+  end
+end

modules/webhooks/spec/lib/webhooks_spec.rb

@@ -0,0 +1,55 @@
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.md for more details.
+#++
+
+require File.expand_path('../../spec_helper', __FILE__)
+
+
+describe OpenProject::Webhooks do
+  describe '.register_hook' do
+    after do
+      OpenProject::Webhooks.unregister_hook('testhook1')
+    end
+
+    it 'should succeed' do
+      OpenProject::Webhooks.register_hook('testhook1') {}
+    end
+  end
+
+  describe '.find' do
+    let!(:hook) { OpenProject::Webhooks.register_hook('testhook3') {} }
+
+    after do
+      OpenProject::Webhooks.unregister_hook('testhook3')
+    end
+
+    it 'should succeed' do
+      expect(OpenProject::Webhooks.find('testhook3')).to equal(hook)
+    end
+  end
+
+  describe '.unregister_hook' do
+    let(:probe) { lambda{} }
+
+    before do
+      OpenProject::Webhooks.register_hook('testhook2', &probe)
+
+    end
+
+    it 'should result in the hook no longer being found' do
+      OpenProject::Webhooks.unregister_hook('testhook2')
+      expect(OpenProject::Webhooks.find('testhook2')).to be_nil
+    end
+  end
+
+end

modules/webhooks/spec/models/webhook_spec.rb

@@ -0,0 +1,57 @@
+require 'spec_helper'
+
+describe ::Webhooks::Webhook, type: :model do
+  subject { FactoryBot.build :webhook }
+
+  describe 'attributes' do
+    describe '#url' do
+      it 'accepts http' do
+        subject.url = 'http://foo.example.org'
+        expect(subject).to be_valid
+      end
+
+      it 'accepts http' do
+        subject.url = 'https://foo.example.org'
+        expect(subject).to be_valid
+      end
+
+      it 'accepts other schemas' do
+        subject.url = 'ftp://foo.example.org'
+        expect(subject).not_to be_valid
+        expect(subject.errors).to have_key(:url)
+      end
+    end
+  end
+
+  describe '#events' do
+    let(:events) { %w(work_package:updated work_package:created) }
+    before do
+      subject.event_names = events
+      subject.save!
+    end
+
+    it 'has an event association' do
+      expect(subject.events.count).to eq 2
+      expect(subject.event_names).to eq events
+    end
+
+    it 'finds the webhook with the saved events' do
+      expect(described_class.with_event_name(events[0]).first).to eq(subject)
+      expect(described_class.with_event_name(events[1]).first).to eq(subject)
+    end
+  end
+
+  describe '#projects' do
+    let(:project1) { FactoryBot.create :project }
+
+    before do
+      subject.projects << project1
+      subject.save!
+    end
+
+    it 'has an event association' do
+      expect(subject.projects.count).to eq 1
+      expect(subject.project_ids).to eq([project1.id])
+    end
+  end
+end

modules/webhooks/spec/routing/webhooks/outgoing/admin_controller_spec.rb

@@ -0,0 +1,63 @@
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2012-2015 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+# Copyright (C) 2006-2013 Jean-Philippe Lang
+# Copyright (C) 2010-2013 the ChiliProject Team
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.rdoc for more details.
+#++
+
+require 'spec_helper'
+
+describe 'Outgoing webhooks administration', type: :routing do
+  it 'route to index' do
+    expect(get('/admin/webhooks')).to route_to('webhooks/outgoing/admin#index')
+  end
+
+  it 'route to new' do
+    expect(get('/admin/webhooks/new')).to route_to('webhooks/outgoing/admin#new')
+  end
+
+  it 'route to show' do
+    expect(get('/admin/webhooks/1')).to route_to(controller: 'webhooks/outgoing/admin',
+                                                  action: 'show',
+                                                  webhook_id: '1')
+  end
+
+  it 'route to edit' do
+    expect(get('/admin/webhooks/1/edit')).to route_to(controller: 'webhooks/outgoing/admin',
+                                                                action: 'edit',
+                                                                webhook_id: '1')
+  end
+
+  it 'route to PUT update' do
+    expect(put('/admin/webhooks/1')).to route_to(controller: 'webhooks/outgoing/admin',
+                                                              action: 'update',
+                                                              webhook_id: '1')
+  end
+
+  it 'route to DELETE destroy' do
+    expect(delete('/admin/webhooks/1')).to route_to(controller: 'webhooks/outgoing/admin',
+                                                    action: 'destroy',
+                                                    webhook_id: '1')
+  end
+end

modules/webhooks/spec/spec_helper.rb

@@ -0,0 +1,15 @@
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.md for more details.
+#++
+
+require 'spec_helper'

modules/webhooks/spec/workers/work_package_webhook_job.rb

@@ -0,0 +1,125 @@
+#-- encoding: UTF-8
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2012-2017 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+# Copyright (C) 2006-2017 Jean-Philippe Lang
+# Copyright (C) 2010-2013 the ChiliProject Team
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.rdoc for more details.
+#++
+
+require 'spec_helper'
+
+describe WorkPackageWebhookJob, type: :model, webmock: true do
+  shared_examples "a work package webhook call" do |*flags|
+    let(:title) { "Some workpackage subject" }
+    let(:work_package) { FactoryBot.create :work_package, subject: title }
+
+    let(:secret) { nil }
+    let(:webhook) { FactoryBot.create :webhook, url: request_url, secret: secret }
+
+    let(:user) { FactoryBot.create :admin }
+
+    let(:event) { "work_package:created" }
+    let(:job) { WorkPackageWebhookJob.new webhook.id, work_package.journals.last.id, event }
+
+    let(:request_url) { "http://example.net/test/42" }
+    let(:stubbed_url) { request_url }
+
+    let(:request_headers) do
+      { content_type: "application/json", accept: "application/json" }
+    end
+
+    let(:response_code) { 200 }
+    let(:response_body) { "hook called" }
+    let(:response_headers) do
+      { content_type: "text/plain", x_spec: "foobar" }
+    end
+
+    let(:stub) do
+      stub_request(:post, stubbed_url.sub("http://", ""))
+        .with(
+          body: hash_including(
+            "action" => event,
+            "work_package" => hash_including(
+              "_type" => "WorkPackage",
+              "subject" => title
+            )
+          ),
+          headers: request_headers
+        )
+        .to_return(
+          status: response_code,
+          body: response_body,
+          headers: response_headers
+        )
+    end
+
+    before do
+      User.current = user
+
+      stub
+
+      begin
+        job.perform
+      rescue
+        # ignoring it as it's expected to throw exceptions in certain scenarios
+      end
+    end
+
+    it "calls the webhook url" do
+      expect(stub).to have_been_requested
+    end
+
+    it "creates a log for the call" do
+      log = Webhooks::Log.last
+
+      expect(log.webhook).to eq webhook
+      expect(log.url).to eq webhook.url
+      expect(log.event_name).to eq event
+      expect(log.request_headers).to eq request_headers
+      expect(log.response_code).to eq response_code
+      expect(log.response_body).to eq response_body
+      expect(log.response_headers).to eq response_headers
+    end
+  end
+
+  describe "triggering a work package update" do
+    it_behaves_like "a work package webhook call" do
+      let(:event) { "work_package:updated" }
+    end
+  end
+
+  describe "triggering a work package creation" do
+    it_behaves_like "a work package webhook call" do
+      let(:event) { "work_package:created" }
+    end
+  end
+
+  describe "triggering a work package update with an invalid url" do
+    it_behaves_like "a work package webhook call" do
+      let(:event) { "work_package:updated" }
+      let(:response_code) { 404 }
+      let(:response_body) { "not found" }
+    end
+  end
+end