WIP Process payments for expired invoices

Reviewed-on: #205
Reviewed-by: galfert <garret.alfert@gmail.com>

Dockerfile

@@ -1,18 +1,11 @@
 # syntax=docker/dockerfile:1
-FROM debian:bullseye-slim as base
+FROM ruby:3.3.4
 
 SHELL ["/bin/bash", "-o", "pipefail", "-c"]
 
-# TODO Remove when upstream Ruby works properly on Apple silicon
-RUN apt update && apt install -y build-essential wget autoconf libpq-dev pkg-config
-RUN wget https://github.com/postmodern/ruby-install/releases/download/v0.9.3/ruby-install-0.9.3.tar.gz \
-  && tar -xzvf ruby-install-0.9.3.tar.gz \
-  && cd ruby-install-0.9.3/ \
-  && make install
-RUN ruby-install -p https://github.com/ruby/ruby/pull/9371.diff ruby 3.3.0
-ENV PATH="/opt/rubies/ruby-3.3.0/bin:${PATH}"
+RUN apt-get update -qq && apt-get install -y --no-install-recommends curl \
+      ldap-utils tini libvips
 
-RUN apt-get install -y --no-install-recommends curl ldap-utils tini libvips
 RUN curl -fsSL https://deb.nodesource.com/setup_lts.x | bash -
 RUN apt-get update && apt-get install -y nodejs
 

Gemfile

@@ -44,6 +44,8 @@ gem 'pagy', '~> 6.0', '>= 6.0.2'
 gem 'flipper'
 gem 'flipper-active_record'
 gem 'flipper-ui'
+gem 'gpgme', '~> 2.0.24'
+gem 'zbase32', '~> 0.1.1'
 
 # HTTP requests
 gem 'faraday'

Gemfile.lock

@@ -197,6 +197,8 @@ GEM
       raabro (~> 1.4)
     globalid (1.2.1)
       activesupport (>= 6.1)
+    gpgme (2.0.24)
+      mini_portile2 (~> 2.7)
     hashdiff (1.1.0)
     i18n (1.14.1)
       concurrent-ruby (~> 1.0)
@@ -483,6 +485,7 @@ GEM
     xpath (3.2.0)
       nokogiri (~> 1.8)
     yard (0.9.34)
+    zbase32 (0.1.1)
     zeitwerk (2.6.12)
 
 PLATFORMS
@@ -507,6 +510,7 @@ DEPENDENCIES
   flipper
   flipper-active_record
   flipper-ui
+  gpgme (~> 2.0.24)
   image_processing (~> 1.12.2)
   importmap-rails
   jbuilder (~> 2.7)
@@ -540,6 +544,7 @@ DEPENDENCIES
   warden
   web-console (~> 4.2)
   webmock
+  zbase32 (~> 0.1.1)
 
 BUNDLED WITH
    2.5.5

app/controllers/admin/settings/registrations_controller.rb

@@ -9,4 +9,12 @@ class Admin::Settings::RegistrationsController < Admin::SettingsController
       success: "Settings saved"
     }
   end
+
+  private
+
+    def setting_params
+      params.require(:setting).permit([
+        :reserved_usernames, default_services: []
+      ])
+    end
 end

app/controllers/admin/settings_controller.rb

@@ -9,11 +9,12 @@ class Admin::SettingsController < Admin::BaseController
     changed_keys = []
 
     setting_params.keys.each do |key|
-      next if setting_params[key].nil? ||
-              (Setting.send(key).to_s == setting_params[key].strip)
+      next if clean_param(key).nil? ||
+        (Setting.send(key).to_s == clean_param(key))
+
       changed_keys.push(key)
       setting = Setting.new(var: key)
-      setting.value = setting_params[key].strip
+      setting.value = clean_param(key)
       unless setting.valid?
         @errors.merge!(setting.errors)
       end
@@ -24,7 +25,7 @@ class Admin::SettingsController < Admin::BaseController
     end
 
     changed_keys.each do |key|
-      Setting.send("#{key}=", setting_params[key].strip)
+      Setting.send("#{key}=", clean_param(key))
     end
   end
 
@@ -37,4 +38,12 @@ class Admin::SettingsController < Admin::BaseController
     def setting_params
       params.require(:setting).permit(Setting.editable_keys.map(&:to_sym))
     end
+
+    def clean_param(key)
+      if Setting.get_field(key)[:type] == :string
+        setting_params[key].strip
+      else
+        setting_params[key]
+      end
+    end
 end

app/controllers/admin/users_controller.rb

@@ -30,7 +30,7 @@ class Admin::UsersController < Admin::BaseController
     amount = params[:amount].to_i
     notify_user = ActiveRecord::Type::Boolean.new.cast(params[:notify_user])
 
-    CreateInvitations.call(user: @user, amount: amount, notify: notify_user)
+    UserManager::CreateInvitations.call(user: @user, amount: amount, notify: notify_user)
 
     redirect_to admin_user_path(@user.cn), flash: {
       success: "Added #{amount} invitations to #{@user.cn}'s account"

app/controllers/contributions/donations_controller.rb

@@ -84,21 +84,26 @@ class Contributions::DonationsController < ApplicationController
       @donation.paid_at = DateTime.now
       @donation.payment_status = "settled"
       @donation.save!
-      flash_message = { success: "Thank you!" }
+      msg = { success: "Thank you!" }
     when "Processing"
       unless @donation.processing?
         @donation.payment_status = "processing"
         @donation.save!
-        flash_message = { success: "Thank you! We will send you an email when the payment is confirmed." }
+        msg = { success: "Thank you! We will send you an email when the payment is confirmed." }
         BtcpayCheckDonationJob.set(wait: 20.seconds).perform_later(@donation)
       end
     when "Expired"
-      flash_message = { warning: "The payment request for this donation has expired" }
+      if invoice["additionalStatus"] &&
+         invoice["additionalStatus"] == "PaidLate"
+        # TODO introduce state machine
+        mark_as_paid(donation)
+      end
+      msg = { warning: "The payment request for this donation has expired" }
     else
-      flash_message = { warning: "Could not determine status of payment" }
+      msg = { warning: "Could not determine status of payment" }
     end
 
-    redirect_to contributions_donations_url, flash: flash_message
+    redirect_to contributions_donations_url, flash: msg
   end
 
   private

app/controllers/lnurlpay_controller.rb

@@ -1,7 +1,7 @@
 class LnurlpayController < ApplicationController
   before_action :check_service_available
   before_action :find_user
-  before_action :set_cors_access_control_headers, only: [:invoice]
+  before_action :set_cors_access_control_headers
 
   MIN_SATS = 10
   MAX_SATS = 1_000_000

app/controllers/services/chat_controller.rb

@@ -3,7 +3,7 @@ class Services::ChatController < Services::BaseController
   before_action :require_service_available
 
   def show
-    @service_enabled = current_user.service_enabled?(:xmpp)
+    @service_enabled = current_user.service_enabled?(:ejabberd)
   end
 
   private

app/controllers/settings_controller.rb

@@ -21,10 +21,12 @@ class SettingsController < ApplicationController
     end
   end
 
+  # PUT /settings/:section
   def update
     @user.preferences.merge!(user_params[:preferences] || {})
     @user.display_name = user_params[:display_name]
-    @user.avatar_new = user_params[:avatar]
+    @user.avatar_new   = user_params[:avatar]
+    @user.pgp_pubkey   = user_params[:pgp_pubkey]
 
     if @user.save
       if @user.display_name && (@user.display_name != @user.ldap_entry[:display_name])
@@ -35,6 +37,10 @@ class SettingsController < ApplicationController
         LdapManager::UpdateAvatar.call(dn: @user.dn, file: @user.avatar_new)
       end
 
+      if @user.pgp_pubkey && (@user.pgp_pubkey != @user.ldap_entry[:pgp_key])
+        UserManager::UpdatePgpKey.call(user: @user)
+      end
+
       redirect_to setting_path(@settings_section), flash: {
         success: 'Settings saved.'
       }
@@ -44,6 +50,7 @@ class SettingsController < ApplicationController
     end
   end
 
+  # POST /settings/update_email
   def update_email
     if @user.valid_ldap_authentication?(security_params[:current_password])
       if @user.update email: email_params[:email]
@@ -61,6 +68,7 @@ class SettingsController < ApplicationController
     end
   end
 
+  # POST /settings/reset_email_password
   def reset_email_password
     @user.current_password = security_params[:current_password]
 
@@ -83,6 +91,7 @@ class SettingsController < ApplicationController
     end
   end
 
+  # POST /settings/reset_password
   def reset_password
     current_user.send_reset_password_instructions
     sign_out current_user
@@ -90,6 +99,7 @@ class SettingsController < ApplicationController
     redirect_to check_your_email_path, notice: msg
   end
 
+  # POST /settings/set_nostr_pubkey
   def set_nostr_pubkey
     signed_event = Nostr::Event.new(**nostr_event_from_params)
 
@@ -152,7 +162,8 @@ class SettingsController < ApplicationController
 
     def user_params
       params.require(:user).permit(
-        :display_name, :avatar, preferences: UserPreferences.pref_keys
+        :display_name, :avatar, :pgp_pubkey,
+        preferences: UserPreferences.pref_keys
       )
     end
 

app/controllers/signup_controller.rb

@@ -96,7 +96,7 @@ class SignupController < ApplicationController
     session[:new_user] = nil
     session[:validation_error] = nil
 
-    CreateAccount.call(account: {
+    UserManager::CreateAccount.call(account: {
       username: @user.cn,
       domain: Setting.primary_domain,
       email: @user.email,

app/controllers/web_key_directory_controller.rb

@@ -0,0 +1,35 @@
+class WebKeyDirectoryController < WellKnownController
+  before_action :allow_cross_origin_requests
+
+  # /.well-known/openpgpkey/hu/:hashed_username(.txt)
+  def show
+    @user = User.find_by(cn: params[:l].downcase)
+
+    if @user.nil? ||
+       @user.pgp_pubkey.blank? ||
+       !@user.pgp_pubkey_contains_user_address?
+      http_status :not_found and return
+    end
+
+    if params[:hashed_username] != @user.wkd_hash
+      http_status :unprocessable_entity and return
+    end
+
+    respond_to do |format|
+      format.text do
+        response.headers['Content-Type'] = 'text/plain'
+        render plain: @user.pgp_pubkey
+      end
+
+      format.any do
+        key = @user.gnupg_key.export
+        send_data key, filename: "#{@user.wkd_hash}.pem",
+                       type: "application/octet-stream"
+      end
+    end
+  end
+
+  def policy
+    head :ok
+  end
+end

app/controllers/webfinger_controller.rb

@@ -1,8 +1,6 @@
-class WebfingerController < ApplicationController
+class WebfingerController < WellKnownController
   before_action :allow_cross_origin_requests, only: [:show]
 
-  layout false
-
   def show
     resource = params[:resource]
 
@@ -76,7 +74,7 @@ class WebfingerController < ApplicationController
   end
 
   def remotestorage_link
-    auth_url = new_rs_oauth_url(@username)
+    auth_url = new_rs_oauth_url(@username, host: Setting.accounts_domain)
     storage_url = "#{Setting.rs_storage_url}/#{@username}"
 
     {
@@ -91,10 +89,4 @@ class WebfingerController < ApplicationController
       }
     }
   end
-
-  def allow_cross_origin_requests
-    return unless Rails.env.development?
-    headers['Access-Control-Allow-Origin'] = "*"
-    headers['Access-Control-Allow-Methods'] = "GET"
-  end
 end

app/controllers/well_known_controller.rb

@@ -1,5 +1,8 @@
 class WellKnownController < ApplicationController
   before_action :require_nostr_enabled, only: [ :nostr ]
+  before_action :allow_cross_origin_requests, only: [ :nostr ]
+
+  layout false
 
   def nostr
     http_status :unprocessable_entity and return if params[:name].blank?
@@ -7,8 +10,14 @@ class WellKnownController < ApplicationController
     relay_url = Setting.nostr_relay_url.presence
 
     if params[:name] == "_"
-      # pubkey for the primary domain without a username (e.g. kosmos.org)
-      res = { names: { "_": Setting.nostr_public_key } }
+      if domain == Setting.primary_domain
+        # pubkey for the primary domain without a username (e.g. kosmos.org)
+        res = { names: { "_": Setting.nostr_public_key_primary_domain.presence || Setting.nostr_public_key } }
+      else
+        # pubkey for the akkounts domain without a username (e.g. accounts.kosmos.org)
+        res = { names: { "_": Setting.nostr_public_key } }
+      end
+
       res[:relays] = { "_" => [ relay_url ] } if relay_url
     else
       @user = User.where(cn: params[:name], ou: domain).first
@@ -30,4 +39,9 @@ class WellKnownController < ApplicationController
     def require_nostr_enabled
       http_status :not_found unless Setting.nostr_enabled?
     end
+
+    def allow_cross_origin_requests
+      headers['Access-Control-Allow-Origin'] = "*"
+      headers['Access-Control-Allow-Methods'] = "GET"
+    end
 end

app/helpers/dashboard_helper.rb

@@ -1,2 +0,0 @@
-module DashboardHelper
-end

app/helpers/donations_helper.rb

@@ -1,2 +0,0 @@
-module DonationsHelper
-end

app/helpers/invitations_helper.rb

@@ -1,2 +0,0 @@
-module InvitationsHelper
-end

app/helpers/lnurlpay_helper.rb

@@ -1,2 +0,0 @@
-module LnurlpayHelper
-end

app/helpers/services_helper.rb

@@ -0,0 +1,12 @@
+module ServicesHelper
+
+  def service_human_name(key, category = :external)
+    SERVICES[category][key][:name] || key.to_s
+  end
+
+  def service_display_name(key, category = :external)
+    SERVICES[category][key][:display_name] ||
+    service_human_name(key, category)
+  end
+
+end

app/helpers/settings_helper.rb

@@ -1,2 +0,0 @@
-module SettingsHelper
-end

app/helpers/signup_helper.rb

@@ -1,2 +0,0 @@
-module SignupHelper
-end

app/helpers/users_helper.rb

@@ -1,2 +0,0 @@
-module UsersHelper
-end

app/helpers/wallet_helper.rb

@@ -1,2 +0,0 @@
-module WalletHelper
-end

app/helpers/welcome_helper.rb

@@ -1,2 +0,0 @@
-module WelcomeHelper
-end

app/jobs/btcpay_check_donation_job.rb

@@ -9,20 +9,29 @@ class BtcpayCheckDonationJob < ApplicationJob
     )
 
     case invoice["status"]
-    when "Settled"
-      donation.paid_at = DateTime.now
-      donation.payment_status = "settled"
-      donation.save!
-
-      NotificationMailer.with(user: donation.user)
-                        .bitcoin_donation_confirmed
-                        .deliver_later
     when "Processing"
       re_enqueue_job(donation)
+    when "Settled"
+      mark_as_paid(donation)
+    when "Expired"
+      if invoice["additionalStatus"] &&
+         invoice["additionalStatus"] == "PaidLate"
+        mark_as_paid(donation)
+      end
     end
   end
 
   def re_enqueue_job(donation)
     self.class.set(wait: 20.seconds).perform_later(donation)
   end
+
+  def mark_as_paid(donation)
+    donation.paid_at = DateTime.now
+    donation.payment_status = "settled"
+    donation.save!
+
+    NotificationMailer.with(user: donation.user)
+                      .bitcoin_donation_confirmed
+                      .deliver_later
+  end
 end

app/jobs/xmpp_exchange_contacts_job.rb

@@ -2,8 +2,8 @@ class XmppExchangeContactsJob < ApplicationJob
   queue_as :default
 
   def perform(inviter, invitee)
-    return unless inviter.service_enabled?(:xmpp) &&
-                  invitee.service_enabled?(:xmpp) &&
+    return unless inviter.service_enabled?(:ejabberd) &&
+                  invitee.service_enabled?(:ejabberd) &&
                   inviter.preferences[:xmpp_exchange_contacts_with_invitees]
 
     ejabberd = EjabberdApiClient.new

app/mailers/application_mailer.rb

@@ -1,3 +1,90 @@
 class ApplicationMailer < ActionMailer::Base
+  default Rails.application.config.action_mailer.default_options
   layout 'mailer'
+
+  private
+
+    def send_mail
+      @template ||= "#{self.class.name.underscore}/#{caller[0][/`([^']*)'/, 1]}"
+      headers['Message-ID'] = message_id
+
+      if @user.pgp_pubkey.present?
+        mail(to: @user.email, subject: "...", content_type: pgp_content_type) do |format|
+          format.text { render plain: pgp_content }
+        end
+      else
+        mail(to: @user.email, subject: @subject) do |format|
+          format.text { render @template }
+        end
+      end
+    end
+
+    def from_address
+      self.class.default[:from]
+    end
+
+    def from_domain
+      Mail::Address.new(from_address).domain
+    end
+
+    def message_id
+      @message_id ||= "#{SecureRandom.uuid}@#{from_domain}"
+    end
+
+    def boundary
+      @boundary ||= SecureRandom.hex(8)
+    end
+
+    def pgp_content_type
+      "multipart/encrypted; protocol=\"application/pgp-encrypted\"; boundary=\"------------#{boundary}\""
+    end
+
+    def pgp_nested_content
+      message_content = render_to_string(template: @template)
+      message_content_base64 = Base64.encode64(message_content)
+      nested_boundary = SecureRandom.hex(8)
+
+      <<~NESTED_CONTENT
+        Content-Type: multipart/mixed; boundary="------------#{nested_boundary}"; protected-headers="v1"
+        Subject: #{@subject}
+        From: <#{from_address}>
+        To: #{@user.display_name || @user.cn} <#{@user.email}>
+        Message-ID: <#{message_id}>
+
+        --------------#{nested_boundary}
+        Content-Type: text/plain; charset=UTF-8; format=flowed
+        Content-Transfer-Encoding: base64
+
+        #{message_content_base64}
+
+        --------------#{nested_boundary}--
+      NESTED_CONTENT
+    end
+
+    def pgp_content
+      encrypted_content = UserManager::PgpEncrypt.call(user: @user, text: pgp_nested_content)
+      encrypted_base64 = Base64.encode64(encrypted_content.to_s)
+
+      <<~EMAIL_CONTENT
+        This is an OpenPGP/MIME encrypted message (RFC 4880 and 3156)
+        --------------#{boundary}
+        Content-Type: application/pgp-encrypted
+        Content-Description: PGP/MIME version identification
+
+        Version: 1
+
+        --------------#{boundary}
+        Content-Type: application/octet-stream; name="encrypted.asc"
+        Content-Description: OpenPGP encrypted message
+        Content-Disposition: inline; filename="encrypted.asc"
+
+        -----BEGIN PGP MESSAGE-----
+
+        #{encrypted_base64}
+
+        -----END PGP MESSAGE-----
+
+        --------------#{boundary}--
+      EMAIL_CONTENT
+    end
 end

app/mailers/custom_mailer.rb

@@ -18,6 +18,6 @@ class CustomMailer < ApplicationMailer
     @user = params[:user]
     @subject = params[:subject]
     @body = params[:body]
-    mail(to: @user.email, subject: @subject)
+    send_mail
   end
 end

app/mailers/notification_mailer.rb

@@ -3,7 +3,7 @@ class NotificationMailer < ApplicationMailer
     @user = params[:user]
     @amount_sats = params[:amount_sats]
     @subject = "Sats received"
-    mail to: @user.email, subject: @subject
+    send_mail
   end
 
   def remotestorage_auth_created
@@ -15,19 +15,19 @@ class NotificationMailer < ApplicationMailer
       "#{access} #{directory}"
     end
     @subject = "New app connected to your storage"
-    mail to: @user.email, subject: @subject
+    send_mail
   end
 
   def new_invitations_available
     @user = params[:user]
     @subject = "New invitations added to your account"
-    mail to: @user.email, subject: @subject
+    send_mail
   end
 
   def bitcoin_donation_confirmed
     @user = params[:user]
     @donation = params[:donation]
     @subject = "Donation confirmed"
-    mail to: @user.email, subject: @subject
+    send_mail
   end
 end

app/models/concerns/settings/btcpay_settings.rb

@@ -0,0 +1,24 @@
+module Settings
+  module BtcpaySettings
+    extend ActiveSupport::Concern
+
+    included do
+      field :btcpay_api_url, type: :string,
+        default: ENV["BTCPAY_API_URL"].presence
+
+      field :btcpay_enabled, type: :boolean,
+        default: ENV["BTCPAY_API_URL"].present?
+
+      field :btcpay_public_url, type: :string,
+        default: ENV["BTCPAY_PUBLIC_URL"].presence
+
+      field :btcpay_store_id, type: :string,
+        default: ENV["BTCPAY_STORE_ID"].presence
+
+      field :btcpay_auth_token, type: :string,
+        default: ENV["BTCPAY_AUTH_TOKEN"].presence
+
+      field :btcpay_publish_wallet_balances, type: :boolean, default: true
+    end
+  end
+end

app/models/concerns/settings/discourse_settings.rb

@@ -0,0 +1,16 @@
+module Settings
+  module DiscourseSettings
+    extend ActiveSupport::Concern
+
+    included do
+      field :discourse_public_url, type: :string,
+        default: ENV["DISCOURSE_PUBLIC_URL"].presence
+
+      field :discourse_enabled, type: :boolean,
+        default: ENV["DISCOURSE_PUBLIC_URL"].present?
+
+      field :discourse_connect_secret, type: :string,
+        default: ENV["DISCOURSE_CONNECT_SECRET"].presence
+    end
+  end
+end

app/models/concerns/settings/drone_ci_settings.rb

@@ -0,0 +1,13 @@
+module Settings
+  module DroneCiSettings
+    extend ActiveSupport::Concern
+
+    included do
+      field :droneci_public_url, type: :string,
+        default: ENV["DRONECI_PUBLIC_URL"].presence
+
+      field :droneci_enabled, type: :boolean,
+        default: ENV["DRONECI_PUBLIC_URL"].present?
+    end
+  end
+end

app/models/concerns/settings/ejabberd_settings.rb

@@ -0,0 +1,19 @@
+module Settings
+  module EjabberdSettings
+    extend ActiveSupport::Concern
+
+    included do
+      field :ejabberd_enabled, type: :boolean,
+        default: ENV["EJABBERD_API_URL"].present?
+
+      field :ejabberd_api_url, type: :string,
+        default: ENV["EJABBERD_API_URL"].presence
+
+      field :ejabberd_admin_url, type: :string,
+        default: ENV["EJABBERD_ADMIN_URL"].presence
+
+      field :ejabberd_buddy_roster, type: :string,
+        default: "Buddies"
+    end
+  end
+end

app/models/concerns/settings/email_settings.rb

@@ -0,0 +1,28 @@
+module Settings
+  module EmailSettings
+    extend ActiveSupport::Concern
+
+    included do
+      field :email_enabled, type: :boolean,
+        default: ENV["EMAIL_SMTP_HOST"].present?
+
+      # field :email_smtp_host, type: :string,
+      #   default: ENV["EMAIL_SMTP_HOST"].presence
+      #
+      # field :email_smtp_port, type: :string,
+      #   default: ENV["EMAIL_SMTP_PORT"].presence || 587
+      #
+      # field :email_smtp_enable_starttls, type: :string,
+      #   default: ENV["EMAIL_SMTP_PORT"].presence || true
+      #
+      # field :email_auth_method, type: :string,
+      #   default: ENV["EMAIL_AUTH_METHOD"].presence || "plain"
+      #
+      # field :email_imap_host, type: :string,
+      #   default: ENV["EMAIL_IMAP_HOST"].presence
+      #
+      # field :email_imap_port, type: :string,
+      #   default: ENV["EMAIL_IMAP_PORT"].presence || 993
+    end
+  end
+end

app/models/concerns/settings/general_settings.rb

@@ -0,0 +1,34 @@
+module Settings
+  module GeneralSettings
+    extend ActiveSupport::Concern
+
+    included do
+      field :primary_domain, type: :string,
+        default: ENV["PRIMARY_DOMAIN"].presence
+
+      field :accounts_domain, type: :string,
+        default: ENV["AKKOUNTS_DOMAIN"].presence
+
+      #
+      # Internal services
+      #
+
+      field :redis_url, type: :string,
+        default: ENV["REDIS_URL"] || "redis://localhost:6379/0"
+
+      field :s3_enabled, type: :boolean,
+        default: ENV["S3_ENABLED"] && ENV["S3_ENABLED"].to_s != "false"
+
+      field :sentry_enabled, type: :boolean, readonly: true,
+        default: ENV["SENTRY_DSN"].present?
+
+      #
+      # Registrations
+      #
+
+      field :reserved_usernames, type: :array, default: %w[
+        account accounts donations mail webmaster support
+      ]
+    end
+  end
+end

app/models/concerns/settings/gitea_settings.rb

@@ -0,0 +1,13 @@
+module Settings
+  module GiteaSettings
+    extend ActiveSupport::Concern
+
+    included do
+      field :gitea_public_url, type: :string,
+        default: ENV["GITEA_PUBLIC_URL"].presence
+
+      field :gitea_enabled, type: :boolean,
+        default: ENV["GITEA_PUBLIC_URL"].present?
+    end
+  end
+end

app/models/concerns/settings/lightning_network_settings.rb

@@ -0,0 +1,25 @@
+module Settings
+  module LightningNetworkSettings
+    extend ActiveSupport::Concern
+
+    included do
+      field :lndhub_api_url, type: :string,
+        default: ENV["LNDHUB_API_URL"].presence
+
+      field :lndhub_enabled, type: :boolean,
+        default: ENV["LNDHUB_API_URL"].present?
+
+      field :lndhub_admin_token, type: :string,
+        default: ENV["LNDHUB_ADMIN_TOKEN"].presence
+
+      field :lndhub_admin_enabled, type: :boolean,
+        default: ENV["LNDHUB_ADMIN_UI"] || false
+
+      field :lndhub_public_key, type: :string,
+        default: (ENV["LNDHUB_PUBLIC_KEY"] || "")
+
+      field :lndhub_keysend_enabled, type: :boolean,
+        default: -> { self.lndhub_public_key.present? }
+    end
+  end
+end

app/models/concerns/settings/mastodon_settings.rb

@@ -0,0 +1,16 @@
+module Settings
+  module MastodonSettings
+    extend ActiveSupport::Concern
+
+    included do
+      field :mastodon_public_url, type: :string,
+        default: ENV["MASTODON_PUBLIC_URL"].presence
+
+      field :mastodon_enabled, type: :boolean,
+        default: ENV["MASTODON_PUBLIC_URL"].present?
+
+      field :mastodon_address_domain, type: :string,
+        default: ENV["MASTODON_ADDRESS_DOMAIN"].presence || self.primary_domain
+    end
+  end
+end

app/models/concerns/settings/media_wiki_settings.rb

@@ -0,0 +1,13 @@
+module Settings
+  module MediaWikiSettings
+    extend ActiveSupport::Concern
+
+    included do
+      field :mediawiki_public_url, type: :string,
+        default: ENV["MEDIAWIKI_PUBLIC_URL"].presence
+
+      field :mediawiki_enabled, type: :boolean,
+        default: ENV["MEDIAWIKI_PUBLIC_URL"].present?
+    end
+  end
+end

app/models/concerns/settings/nostr_settings.rb

@@ -0,0 +1,25 @@
+module Settings
+  module NostrSettings
+    extend ActiveSupport::Concern
+
+    included do
+      field :nostr_enabled, type: :boolean,
+        default: ENV["NOSTR_PRIVATE_KEY"].present?
+
+      field :nostr_private_key, type: :string,
+        default: ENV["NOSTR_PRIVATE_KEY"].presence
+
+      field :nostr_public_key, type: :string,
+        default: ENV["NOSTR_PUBLIC_KEY"].presence
+
+      field :nostr_public_key_primary_domain, type: :string,
+        default: ENV["NOSTR_PUBLIC_KEY_PRIMARY_DOMAIN"].presence
+
+      field :nostr_relay_url, type: :string,
+        default: ENV["NOSTR_RELAY_URL"].presence
+
+      field :nostr_zaps_relay_limit, type: :integer,
+        default: 12
+    end
+  end
+end

app/models/concerns/settings/open_collective_settings.rb

@@ -0,0 +1,9 @@
+module Settings
+  module OpenCollectiveSettings
+    extend ActiveSupport::Concern
+
+    included do
+      field :opencollective_enabled, type: :boolean, default: true
+    end
+  end
+end

app/models/concerns/settings/remote_storage_settings.rb

@@ -0,0 +1,16 @@
+module Settings
+  module RemoteStorageSettings
+    extend ActiveSupport::Concern
+
+    included do
+      field :remotestorage_enabled, type: :boolean,
+        default: ENV["RS_STORAGE_URL"].present?
+
+      field :rs_storage_url, type: :string,
+        default: ENV["RS_STORAGE_URL"].presence
+
+      field :rs_redis_url, type: :string,
+        default: ENV["RS_REDIS_URL"] || "redis://localhost:6379/1"
+    end
+  end
+end

app/models/concerns/settings/xmpp_settings.rb

@@ -0,0 +1,11 @@
+module Settings
+  module XmppSettings
+    extend ActiveSupport::Concern
+
+    included do
+      field :xmpp_default_rooms, type: :array, default: []
+      field :xmpp_autojoin_default_rooms, type: :boolean, default: false
+      field :xmpp_notifications_from_address, type: :string, default: primary_domain
+    end
+  end
+end

app/models/setting.rb

@@ -2,226 +2,30 @@
 class Setting < RailsSettings::Base
   cache_prefix { "v1" }
 
-  field :primary_domain, type: :string,
-    default: ENV["PRIMARY_DOMAIN"].presence
-
-  field :accounts_domain, type: :string,
-    default: ENV["AKKOUNTS_DOMAIN"].presence
-
-  #
-  # Internal services
-  #
-
-  field :redis_url, type: :string,
-    default: ENV["REDIS_URL"] || "redis://localhost:6379/0"
-
-  field :s3_enabled, type: :boolean,
-    default: ENV["S3_ENABLED"] && ENV["S3_ENABLED"].to_s != "false"
-
-  #
-  # Registrations
-  #
-
-  field :reserved_usernames, type: :array, default: %w[
-    account accounts donations mail webmaster support
-  ]
-
-  #
-  # XMPP
-  #
-
-  field :xmpp_default_rooms, type: :array, default: []
-  field :xmpp_autojoin_default_rooms, type: :boolean, default: false
-  field :xmpp_notifications_from_address, type: :string, default: primary_domain
-
-  #
-  # Sentry
-  #
-
-  field :sentry_enabled, type: :boolean, readonly: true,
-    default: ENV["SENTRY_DSN"].present?
-
-  #
-  # BTCPay Server
-  #
-
-  field :btcpay_api_url, type: :string,
-    default: ENV["BTCPAY_API_URL"].presence
-
-  field :btcpay_enabled, type: :boolean,
-    default: ENV["BTCPAY_API_URL"].present?
-
-  field :btcpay_public_url, type: :string,
-    default: ENV["BTCPAY_PUBLIC_URL"].presence
-
-  field :btcpay_store_id, type: :string,
-    default: ENV["BTCPAY_STORE_ID"].presence
-
-  field :btcpay_auth_token, type: :string,
-    default: ENV["BTCPAY_AUTH_TOKEN"].presence
-
-  field :btcpay_publish_wallet_balances, type: :boolean, default: true
-
-  #
-  # Discourse
-  #
-
-  field :discourse_public_url, type: :string,
-    default: ENV["DISCOURSE_PUBLIC_URL"].presence
-
-  field :discourse_enabled, type: :boolean,
-    default: ENV["DISCOURSE_PUBLIC_URL"].present?
-
-  field :discourse_connect_secret, type: :string,
-    default: ENV["DISCOURSE_CONNECT_SECRET"].presence
-
-  #
-  # Drone CI
-  #
-
-  field :droneci_public_url, type: :string,
-    default: ENV["DRONECI_PUBLIC_URL"].presence
-
-  field :droneci_enabled, type: :boolean,
-    default: ENV["DRONECI_PUBLIC_URL"].present?
-
-  #
-  # ejabberd
-  #
-
-  field :ejabberd_enabled, type: :boolean,
-    default: ENV["EJABBERD_API_URL"].present?
-
-  field :ejabberd_api_url, type: :string,
-    default: ENV["EJABBERD_API_URL"].presence
-
-  field :ejabberd_admin_url, type: :string,
-    default: ENV["EJABBERD_ADMIN_URL"].presence
-
-  field :ejabberd_buddy_roster, type: :string,
-    default: "Buddies"
-
-  #
-  # Gitea
-  #
-
-  field :gitea_public_url, type: :string,
-    default: ENV["GITEA_PUBLIC_URL"].presence
-
-  field :gitea_enabled, type: :boolean,
-    default: ENV["GITEA_PUBLIC_URL"].present?
-
-  #
-  # Lightning Network
-  #
-
-  field :lndhub_api_url, type: :string,
-    default: ENV["LNDHUB_API_URL"].presence
-
-  field :lndhub_enabled, type: :boolean,
-    default: ENV["LNDHUB_API_URL"].present?
-
-  field :lndhub_admin_token, type: :string,
-    default: ENV["LNDHUB_ADMIN_TOKEN"].presence
-
-  field :lndhub_admin_enabled, type: :boolean,
-    default: ENV["LNDHUB_ADMIN_UI"] || false
-
-  field :lndhub_public_key, type: :string,
-    default: (ENV["LNDHUB_PUBLIC_KEY"] || "")
-
-  field :lndhub_keysend_enabled, type: :boolean,
-    default: -> { self.lndhub_public_key.present? }
-
-  #
-  # Mastodon
-  #
-
-  field :mastodon_public_url, type: :string,
-    default: ENV["MASTODON_PUBLIC_URL"].presence
-
-  field :mastodon_enabled, type: :boolean,
-    default: ENV["MASTODON_PUBLIC_URL"].present?
-
-  field :mastodon_address_domain, type: :string,
-    default: ENV["MASTODON_ADDRESS_DOMAIN"].presence || self.primary_domain
-
-  #
-  # MediaWiki
-  #
-
-  field :mediawiki_public_url, type: :string,
-    default: ENV["MEDIAWIKI_PUBLIC_URL"].presence
-
-  field :mediawiki_enabled, type: :boolean,
-    default: ENV["MEDIAWIKI_PUBLIC_URL"].present?
-
-  #
-  # Nostr
-  #
-
-  field :nostr_enabled, type: :boolean,
-    default: ENV["NOSTR_PRIVATE_KEY"].present?
-
-  field :nostr_private_key, type: :string,
-    default: ENV["NOSTR_PRIVATE_KEY"].presence
-
-  field :nostr_public_key, type: :string,
-    default: ENV["NOSTR_PUBLIC_KEY"].presence
-
-  field :nostr_relay_url, type: :string,
-    default: ENV["NOSTR_RELAY_URL"].presence
-
-  field :nostr_zaps_relay_limit, type: :integer,
-    default: 12
-
-  #
-  # OpenCollective
-  #
-
-  field :opencollective_enabled, type: :boolean, default: true
-
-  #
-  # RemoteStorage
-  #
-
-  field :remotestorage_enabled, type: :boolean,
-    default: ENV["RS_STORAGE_URL"].present?
-
-  field :rs_storage_url, type: :string,
-    default: ENV["RS_STORAGE_URL"].presence
-
-  field :rs_redis_url, type: :string,
-    default: ENV["RS_REDIS_URL"] || "redis://localhost:6379/1"
-
-
-  #
-  # E-Mail Service
-  #
-
-  field :email_enabled, type: :boolean,
-    default: ENV["EMAIL_SMTP_HOST"].present?
-
-  # field :email_smtp_host, type: :string,
-  #   default: ENV["EMAIL_SMTP_HOST"].presence
-  #
-  # field :email_smtp_port, type: :string,
-  #   default: ENV["EMAIL_SMTP_PORT"].presence || 587
-  #
-  # field :email_smtp_enable_starttls, type: :string,
-  #   default: ENV["EMAIL_SMTP_PORT"].presence || true
-  #
-  # field :email_auth_method, type: :string,
-  #   default: ENV["EMAIL_AUTH_METHOD"].presence || "plain"
-  #
-  # field :email_imap_host, type: :string,
-  #   default: ENV["EMAIL_IMAP_HOST"].presence
-  #
-  # field :email_imap_port, type: :string,
-  #   default: ENV["EMAIL_IMAP_PORT"].presence || 993
-
-  def self.default_services
-    # TODO Make configurable from respective service settings page
-    %w[ discourse gitea mastodon mediawiki xmpp ]
+  Dir[Rails.root.join('app', 'models', 'concerns', 'settings', '*.rb')].each do |file|
+    require file
   end
+
+  include Settings::GeneralSettings
+  include Settings::BtcpaySettings
+  include Settings::DiscourseSettings
+  include Settings::DroneCiSettings
+  include Settings::EjabberdSettings
+  include Settings::EmailSettings
+  include Settings::GiteaSettings
+  include Settings::LightningNetworkSettings
+  include Settings::MastodonSettings
+  include Settings::MediaWikiSettings
+  include Settings::NostrSettings
+  include Settings::OpenCollectiveSettings
+  include Settings::RemoteStorageSettings
+  include Settings::XmppSettings
+
+  def self.available_services
+    known_services = SERVICES[:external].keys
+    known_services.select {|s| Setting.send "#{s}_enabled?" }
+  end
+
+  field :default_services, type: :array,
+    default: self.available_services
 end

app/models/user.rb

@@ -3,9 +3,10 @@ require 'nostr'
 class User < ApplicationRecord
   include EmailValidatable
 
-  attr_accessor :display_name
-  attr_accessor :avatar_new
   attr_accessor :current_password
+  attr_accessor :avatar_new
+  attr_accessor :display_name
+  attr_accessor :pgp_pubkey
 
   serialize :preferences, coder: UserPreferences
 
@@ -51,6 +52,8 @@ class User < ApplicationRecord
 
   validate :acceptable_avatar
 
+  validate :acceptable_pgp_key_format, if: -> { defined?(@pgp_pubkey) && @pgp_pubkey.present? }
+
   #
   # Scopes
   #
@@ -165,6 +168,24 @@ class User < ApplicationRecord
     Nostr::PublicKey.new(nostr_pubkey).to_bech32
   end
 
+  def pgp_pubkey
+    @pgp_pubkey ||= ldap_entry[:pgp_key]
+  end
+
+  def gnupg_key
+    return nil unless pgp_pubkey.present?
+    GPGME::Key.import(pgp_pubkey)
+    GPGME::Key.get(pgp_fpr)
+  end
+
+  def pgp_pubkey_contains_user_address?
+    gnupg_key.uids.map(&:email).include?(address)
+  end
+
+  def wkd_hash
+    ZBase32.encode(Digest::SHA1.digest(cn))
+  end
+
   def avatar
     @avatar_base64 ||= LdapManager::FetchAvatar.call(cn: cn)
   end
@@ -180,14 +201,14 @@ class User < ApplicationRecord
   def enable_service(service)
     current_services = services_enabled
     new_services = Array(service).map(&:to_s)
-    services = (current_services + new_services).uniq
+    services = (current_services + new_services).uniq.sort
     ldap.replace_attribute(dn, :serviceEnabled, services)
   end
 
   def disable_service(service)
     current_services = services_enabled
     disabled_services = Array(service).map(&:to_s)
-    services = (current_services - disabled_services).uniq
+    services = (current_services - disabled_services).uniq.sort
     ldap.replace_attribute(dn, :serviceEnabled, services)
   end
 
@@ -214,4 +235,10 @@ class User < ApplicationRecord
         errors.add(:avatar, "must be a JPEG or PNG file")
       end
     end
+
+    def acceptable_pgp_key_format
+      unless GPGME::Key.valid?(pgp_pubkey)
+        errors.add(:pgp_pubkey, 'is not a valid armored PGP public key block')
+      end
+    end
 end

app/services/create_account.rb

@@ -1,54 +0,0 @@
-class CreateAccount < ApplicationService
-  def initialize(account:)
-    @username   = account[:username]
-    @domain     = account[:ou] || Setting.primary_domain
-    @email      = account[:email]
-    @password   = account[:password]
-    @invitation = account[:invitation]
-    @confirmed  = account[:confirmed]
-  end
-
-  def call
-    user = create_user_in_database
-    add_ldap_document
-    create_lndhub_account(user) if Setting.lndhub_enabled
-
-    if @invitation.present?
-      update_invitation(user.id)
-    end
-  end
-
-  private
-
-  def create_user_in_database
-    User.create!(
-      cn: @username,
-      ou: @domain,
-      email: @email,
-      password: @password,
-      password_confirmation: @password,
-      confirmed_at: @confirmed ? DateTime.now : nil
-    )
-  end
-
-  def update_invitation(user_id)
-    @invitation.update! invited_user_id: user_id, used_at: DateTime.now
-  end
-
-  def add_ldap_document
-    hashed_pw = Devise.ldap_auth_password_builder.call(@password)
-    CreateLdapUserJob.perform_later(
-      username: @username,
-      domain: @domain,
-      email: @email,
-      hashed_pw: hashed_pw,
-      confirmed: @confirmed
-    )
-  end
-
-  def create_lndhub_account(user)
-    #TODO enable in development when we have a local lndhub (mock?) API
-    return if Rails.env.development?
-    CreateLndhubAccountJob.perform_later(user)
-  end
-end

app/services/create_invitations.rb

@@ -1,17 +0,0 @@
-class CreateInvitations < ApplicationService
-  def initialize(user:, amount:, notify: true)
-    @user = user
-    @amount = amount
-    @notify = notify
-  end
-
-  def call
-    @amount.times do
-      Invitation.create(user: @user)
-    end
-
-    if @notify
-      NotificationMailer.with(user: @user).new_invitations_available.deliver_later
-    end
-  end
-end

app/services/ldap_manager/update_pgp_key.rb

@@ -0,0 +1,16 @@
+module LdapManager
+  class UpdatePgpKey < LdapManagerService
+    def initialize(dn:, pubkey:)
+      @dn = dn
+      @pubkey = pubkey
+    end
+
+    def call
+      if @pubkey.present?
+        replace_attribute @dn, :pgpKey, @pubkey
+      else
+        delete_attribute @dn, :pgpKey
+      end
+    end
+  end
+end

app/services/ldap_service.rb

@@ -58,7 +58,7 @@ class LdapService < ApplicationService
 
     attributes = %w[
       dn cn uid mail displayName admin serviceEnabled
-      mailRoutingAddress mailpassword nostrKey
+      mailRoutingAddress mailpassword nostrKey pgpKey
     ]
     filter = Net::LDAP::Filter.eq("uid", args[:uid] || "*")
 
@@ -73,7 +73,8 @@ class LdapService < ApplicationService
         services_enabled: e.try(:serviceEnabled),
         email_maildrop: e.try(:mailRoutingAddress),
         email_password: e.try(:mailpassword),
-        nostr_key: e.try(:nostrKey) ? e.nostrKey.first : nil
+        nostr_key: e.try(:nostrKey) ? e.nostrKey.first : nil,
+        pgp_key: e.try(:pgpKey) ? e.pgpKey.first : nil
       }
     end
   end
@@ -101,7 +102,7 @@ class LdapService < ApplicationService
     dn = "ou=#{ou},cn=users,#{ldap_suffix}"
 
     aci = <<-EOS
-(target="ldap:///cn=*,ou=#{ou},cn=users,#{ldap_suffix}")(targetattr="cn || sn || uid || userPassword || mail || mailRoutingAddress || serviceEnabled || nostrKey || nsRole || objectClass") (version 3.0; acl "service-#{ou.gsub(".", "-")}-read-search"; allow (read,search) userdn="ldap:///uid=service,ou=#{ou},cn=applications,#{ldap_suffix}";)
+(target="ldap:///cn=*,ou=#{ou},cn=users,#{ldap_suffix}")(targetattr="cn || sn || uid || userPassword || mail || mailRoutingAddress || serviceEnabled || nostrKey || pgpKey || nsRole || objectClass") (version 3.0; acl "service-#{ou.gsub(".", "-")}-read-search"; allow (read,search) userdn="ldap:///uid=service,ou=#{ou},cn=applications,#{ldap_suffix}";)
     EOS
 
     attrs = {

app/services/user_manager/create_account.rb

@@ -0,0 +1,56 @@
+module UserManager
+  class CreateAccount < UserManagerService
+    def initialize(account:)
+      @username   = account[:username]
+      @domain     = account[:ou] || Setting.primary_domain
+      @email      = account[:email]
+      @password   = account[:password]
+      @invitation = account[:invitation]
+      @confirmed  = account[:confirmed]
+    end
+
+    def call
+      user = create_user_in_database
+      add_ldap_document
+      create_lndhub_account(user) if Setting.lndhub_enabled
+
+      if @invitation.present?
+        update_invitation(user.id)
+      end
+    end
+
+    private
+
+    def create_user_in_database
+      User.create!(
+        cn: @username,
+        ou: @domain,
+        email: @email,
+        password: @password,
+        password_confirmation: @password,
+        confirmed_at: @confirmed ? DateTime.now : nil
+      )
+    end
+
+    def update_invitation(user_id)
+      @invitation.update! invited_user_id: user_id, used_at: DateTime.now
+    end
+
+    def add_ldap_document
+      hashed_pw = Devise.ldap_auth_password_builder.call(@password)
+      CreateLdapUserJob.perform_later(
+        username: @username,
+        domain: @domain,
+        email: @email,
+        hashed_pw: hashed_pw,
+        confirmed: @confirmed
+      )
+    end
+
+    def create_lndhub_account(user)
+      #TODO enable in development when we have a local lndhub (mock?) API
+      return if Rails.env.development?
+      CreateLndhubAccountJob.perform_later(user)
+    end
+  end
+end

app/services/user_manager/create_invitations.rb

@@ -0,0 +1,19 @@
+module UserManager
+  class CreateInvitations < UserManagerService
+    def initialize(user:, amount:, notify: true)
+      @user = user
+      @amount = amount
+      @notify = notify
+    end
+
+    def call
+      @amount.times do
+        Invitation.create(user: @user)
+      end
+
+      if @notify
+        NotificationMailer.with(user: @user).new_invitations_available.deliver_later
+      end
+    end
+  end
+end

app/services/user_manager/pgp_encrypt.rb

@@ -0,0 +1,19 @@
+require 'gpgme'
+
+module UserManager
+  class PgpEncrypt < UserManagerService
+    def initialize(user:, text:)
+      @user = user
+      @text = text
+    end
+
+    def call
+      crypto = GPGME::Crypto.new
+      crypto.encrypt(
+        @text,
+        recipients: @user.gnupg_key,
+        always_trust: true
+      )
+    end
+  end
+end

app/services/user_manager/update_pgp_key.rb

@@ -0,0 +1,24 @@
+module UserManager
+  class UpdatePgpKey < UserManagerService
+    def initialize(user:)
+      @user = user
+    end
+
+    def call
+      if @user.pgp_pubkey.blank?
+        @user.update! pgp_fpr: nil
+      else
+        result = GPGME::Key.import(@user.pgp_pubkey)
+
+        if result.imports.present?
+          @user.update! pgp_fpr: result.imports.first.fpr
+        else
+          # TODO notify Sentry, user
+          raise "Failed to import OpenPGP pubkey"
+        end
+      end
+
+      LdapManager::UpdatePgpKey.call(dn: @user.dn, pubkey: @user.pgp_pubkey)
+    end
+  end
+end

app/services/user_manager_service.rb

@@ -0,0 +1,2 @@
+class UserManagerService < ApplicationService
+end

app/views/admin/settings/registrations/show.html.erb

@@ -9,18 +9,36 @@
         <%= render partial: "admin/settings/errors", locals: { errors: @errors } %>
       <% end %>
 
-      <label class="block">
-        <p class="font-bold mb-1">Reserved usernames</p>
-        <p class="text-gray-500">
-          These usernames cannot be registered as accounts:
-        </p>
-        <%= f.text_area :reserved_usernames,
-          value: Setting.reserved_usernames.join("\n"),
-          class: "h-44 mb-2" %>
-        <p class="text-sm text-gray-500">
-          One username per line
-        </p>
-      </label>
+      <ul role="list">
+        <%= render FormElements::FieldsetComponent.new(
+              title: "Reserved usernames",
+              description: "These usernames cannot be registered as accounts."
+            ) do %>
+          <%= f.text_area :reserved_usernames,
+            value: Setting.reserved_usernames.join("\n"),
+            class: "h-44 w-60" %>
+          <p class="text-sm text-gray-500">
+            One username per line
+          </p>
+        <% end %>
+        <li>
+          <p class="font-bold mb-1">Default services</p>
+          <p class="text-gray-500">
+            These services are enabled for new users by default after signup.
+          </p>
+          <div class="flex flex-wrap gap-x-6 gap-y-2">
+            <% Setting.available_services.each do |option| %>
+              <div class="md:inline-block">
+                <%= f.check_box :default_services,
+                  { multiple: true, checked: Setting.default_services.include?(option),
+                    class: "h-4 w-4 rounded border-gray-300 text-blue-600 focus:ring-blue-600 mr-0.5" },
+                  option, nil %>
+                <%= f.label "default_services_#{option.parameterize}", service_human_name(option) %>
+              </div>
+            <% end %>
+          </div>
+        </li>
+      </ul>
     </section>
 
     <section>

app/views/admin/settings/services/_nostr.html.erb

@@ -19,6 +19,11 @@
         title: "Public key",
         description: "The corresponding public key of the accounts service"
       ) %>
+  <%= render FormElements::FieldsetResettableSettingComponent.new(
+        key: :nostr_public_key_primary_domain,
+        title: "Public key for primary domain (NIP-05)",
+        description: "(optional) A different pubkey to announce for the _@#{Setting.primary_domain} Nostr address"
+      ) %>
   <%= render FormElements::FieldsetResettableSettingComponent.new(
         key: :nostr_relay_url,
         title: "Relay URL",

app/views/admin/settings/services/_remotestorage.html.erb

@@ -1,5 +1,4 @@
 <h3>RemoteStorage</h3>
-<p class="text-red-600 mb-8">Feature currently in development.</p>
 <ul role="list">
   <%= render FormElements::FieldsetToggleComponent.new(
     form: f,

app/views/admin/users/show.html.erb

@@ -89,13 +89,47 @@
     </section>
 
     <section class="sm:flex-1 sm:pt-0">
-      <% if @avatar.present? %>
-      <h3>LDAP<h3>
-      <p>
-        <img src="data:image/jpeg;base64,<%= @avatar %>" class="h-48 w-48" />
-      </p>
-      <% end %>
-      <!-- <h3>Actions</h3> -->
+      <h3>LDAP</h3>
+      <table class="divided">
+        <tbody>
+          <tr>
+            <th>Avatar</th>
+            <td>
+              <% if @avatar.present? %>
+                <img src="data:image/jpeg;base64,<%= @avatar %>" class="h-48 w-48" />
+              <% else %>
+                &mdash;
+              <% end %>
+            </td>
+          </tr>
+          <tr>
+            <th>Display name</th>
+            <td><%= @user.display_name || "—" %></td>
+          </tr>
+          <tr>
+            <th class="align-top">PGP key</th>
+            <td class="align-top leading-5">
+              <% if @user.pgp_pubkey.present? %>
+                <span class="font-mono" title="<%= @user.pgp_fpr %>">
+                  <% if @user.pgp_pubkey_contains_user_address? %>
+                    <%= link_to wkd_key_url(hashed_username: @user.wkd_hash, l: @user.cn, format: :txt),
+                      class: "ks-text-link", target: "_blank" do %>
+                      <%= "#{@user.pgp_fpr[0, 8]}…#{@user.pgp_fpr[-8..-1]}" %>
+                    <% end %>
+                  <% else %>
+                    <%= "#{@user.pgp_fpr[0, 8]}…#{@user.pgp_fpr[-8..-1]}" %>
+                  <% end %>
+                </span><br />
+                <% @user.gnupg_key.uids.each do |uid| %>
+                  <%= uid.uid %><br />
+                <% end %>
+              <% else %>
+                &mdash;
+              <% end %>
+            </td>
+          </tr>
+        </tbody>
+      </table>
     </section>
   </div>
 
@@ -184,7 +218,7 @@
           <td>XMPP (ejabberd)</td>
           <td>
             <%= render FormElements::ToggleComponent.new(
-              enabled: @services_enabled.include?("xmpp"),
+              enabled: @services_enabled.include?("ejabberd"),
               input_enabled: false
             ) %>
           </td>

app/views/services/remotestorage/show.html.erb

@@ -14,7 +14,8 @@
     <p class="mb-6">
       In order to connect an app to your storage account, give it your address:
     </p>
-    <p data-controller="clipboard" class="flex gap-1 sm:w-2/5">
+    <p data-controller="clipboard" class="flex items-center gap-1 sm:w-2/5">
+      <img src="/img/logos/icon_remotestorage.svg" class="inline-block h-6 w-6 mr-1">
       <input type="text" id="user_address" class="grow"
              value=<%= current_user.address %> disabled="disabled"
              data-clipboard-target="source" />
@@ -31,6 +32,24 @@
     </p>
   </section>
 
+  <section>
+    <h3>Compatible Apps</h3>
+    <p>
+      Your Storage account is based on a new open standard called
+      <a href="https://remotestorage.io" target="_blank">
+        <img src="/img/logos/icon_remotestorage.svg" class="h-4 w-4 inline">
+        <strong>remoteStorage</strong>
+      </a>, which is not yet widely supported.  Look
+      for the remoteStorage icon, or check the Sync settings in apps.
+    </p>
+    <p>
+      If you want your favorite apps to support syncing data with your own
+      Storage account, let the developers know! All relevant information is
+      available on the <a href="https://remotestorage.io"
+        target="_blank" class="ks-text-link">remoteStorage website</a>.
+    </p>
+  </section>
+
   <section>
     <h3>Recommended Apps</h3>
     <div data-controller="tabs"

app/views/settings/_account.html.erb

@@ -1,6 +1,6 @@
 <%= tag.section data: {
       controller: "settings--account--email",
-      "settings--account--email-validation-failed-value": @validation_errors.present?
+      "settings--account--email-validation-failed-value": @validation_errors&.[](:email)&.present?
     } do %>
   <h3>E-Mail</h3>
   <%= form_for(@user, url: update_email_settings_path, method: "post") do |f| %>
@@ -23,7 +23,7 @@
         </span>
       </button>
     </p>
-    <% if @validation_errors.present? && @validation_errors[:email].present? %>
+    <% if @validation_errors&.[](:email)&.present? %>
       <p class="error-msg"><%= @validation_errors[:email].first %></p>
     <% end %>
     <div class="initial-hidden">
@@ -41,10 +41,33 @@
 <% end %>
 <section>
   <h3>Password</h3>
-  <p class="mb-8">Use the following button to request an email with a password reset link:</p>
+  <p class="mb-6">Use the following button to request an email with a password reset link:</p>
   <%= form_with(url: reset_password_settings_path, method: :post) do %>
     <p>
       <%= submit_tag("Send me a password reset link", class: 'btn-md btn-gray w-full sm:w-auto') %>
     </p>
   <% end %>
 </section>
+<%= form_for(@user, url: setting_path(:account), html: { :method => :put }) do |f| %>
+  <section class="!pt-8 sm:!pt-12">
+    <h3>OpenPGP</h3>
+    <ul role="list">
+      <%= render FormElements::FieldsetComponent.new(
+            title: "Public key",
+            description: "Your OpenPGP public key in ASCII Armor format"
+          ) do %>
+        <%= f.text_area :pgp_pubkey,
+          value: @user.pgp_pubkey,
+          class: "h-24 w-full" %>
+        <% if @validation_errors&.[](:pgp_pubkey)&.present? %>
+          <p class="error-msg">This <%= @validation_errors[:pgp_pubkey].first %></p>
+        <% end %>
+      <% end %>
+    </ul>
+  </section>
+  <section>
+    <p class="pt-6 border-t border-gray-200 text-right">
+      <%= f.submit 'Save', class: "btn-md btn-blue w-full md:w-auto" %>
+    </p>
+  </section>
+<% end %>

app/views/settings/_email.html.erb

@@ -5,7 +5,7 @@
   <h3>E-Mail Password</h3>
   <%= form_for(@user, url: reset_email_password_settings_path, method: "post") do |f| %>
     <%= hidden_field_tag :section, "email" %>
-    <p class="mb-8">
+    <p class="mb-6">
       Use the following button to generate a new email password:
     </p>
     <p class="hidden initial-visible">

config/environments/development.rb

@@ -57,16 +57,22 @@ Rails.application.configure do
   # routes, locales, etc. This feature depends on the listen gem.
   config.file_watcher = ActiveSupport::EventedFileUpdateChecker
 
-  config.action_mailer.default_options = {
-    from: "accounts@localhost"
-  }
-
   # Don't actually send emails, cache them for viewing via letter opener
   config.action_mailer.delivery_method = :letter_opener
+
   # Don't care if the mailer can't send
   config.action_mailer.raise_delivery_errors = true
+
   # Base URL to be used by email template link helpers
-  config.action_mailer.default_url_options = { host: "localhost:3000", protocol: "http" }
+  config.action_mailer.default_url_options = {
+    host: "localhost:3000",
+    protocol: "http"
+  }
+
+  config.action_mailer.default_options = {
+    from: "accounts@localhost",
+    message_id: -> { "<#{Mail.random_tag}@localhost>" },
+  }
 
   # Allow requests from any IP
   config.web_console.permissions = '0.0.0.0/0'

config/environments/production.rb

@@ -63,7 +63,7 @@ Rails.application.configure do
   outgoing_email_domain  = Mail::Address.new(outgoing_email_address).domain
 
   config.action_mailer.default_url_options = {
-    host: ENV['AKKOUNTS_DOMAIN'],
+    host: ENV.fetch('AKKOUNTS_DOMAIN'),
     protocol: "https",
   }
 

config/environments/test.rb

@@ -46,8 +46,12 @@ Rails.application.configure do
 
   config.action_mailer.default_url_options = {
     host: "accounts.kosmos.org",
-    protocol: "https",
-    from: "accounts@kosmos.org"
+    protocol: "https"
+  }
+
+  config.action_mailer.default_options = {
+    from: "accounts@kosmos.org",
+    message_id: -> { "<#{Mail.random_tag}@kosmos.org>" },
   }
 
   config.active_job.queue_adapter = :test

config/initializers/service_details.rb

@@ -0,0 +1,2 @@
+config_path = Rails.root.join('config', 'services.yml')
+SERVICES = YAML.load_file(config_path).deep_symbolize_keys.with_indifferent_access

config/routes.rb

@@ -70,10 +70,12 @@ Rails.application.routes.draw do
 
   get '.well-known/webfinger', to: 'webfinger#show'
   get '.well-known/nostr', to: 'well_known#nostr'
-  get '.well-known/lnurlp/:username', to: 'lnurlpay#index', as: 'lightning_address'
-  get '.well-known/keysend/:username', to: 'lnurlpay#keysend', as: 'lightning_address_keysend'
+  get '.well-known/lnurlp/:username', to: 'lnurlpay#index', as: :lightning_address
+  get '.well-known/keysend/:username', to: 'lnurlpay#keysend', as: :lightning_address_keysend
+  get '.well-known/openpgpkey/hu/:hashed_username(.:format)', to: 'web_key_directory#show', as: :wkd_key
+  get '.well-known/openpgpkey/policy', to: 'web_key_directory#policy'
 
-  get 'lnurlpay/:username/invoice', to: 'lnurlpay#invoice', as: 'lnurlpay_invoice'
+  get 'lnurlpay/:username/invoice', to: 'lnurlpay#invoice', as: :lnurlpay_invoice
 
   post 'webhooks/lndhub', to: 'webhooks#lndhub'
 

config/services.yml

@@ -0,0 +1,30 @@
+internal:
+  btcpay:
+    name: BTCPay Server
+  postgres:
+    name: PostgreSQL
+  sentry:
+    name: Sentry
+external:
+  discourse:
+    name: Discourse
+  droneci:
+    name: Drone CI
+  ejabberd:
+    display_name: Chat
+  email:
+    name: E-Mail
+  gitea:
+    name: Gitea
+  lndhub:
+    name: LNDHub
+    display_name: Lightning Network
+  mastodon:
+    name: Mastodon
+  mediawiki:
+    name: MediaWiki
+  nostr:
+    name: Nostr
+  remotestorage:
+    name: remoteStorage
+    display_name: Storage

db/migrate/20240922205634_add_pgp_fpr_to_users.rb

@@ -0,0 +1,5 @@
+class AddPgpFprToUsers < ActiveRecord::Migration[7.1]
+  def change
+    add_column :users, :pgp_fpr, :string
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.1].define(version: 2024_06_07_123654) do
+ActiveRecord::Schema[7.1].define(version: 2024_09_22_205634) do
   create_table "active_storage_attachments", force: :cascade do |t|
     t.string "name", null: false
     t.string "record_type", null: false
@@ -132,6 +132,7 @@ ActiveRecord::Schema[7.1].define(version: 2024_06_07_123654) do
     t.datetime "remember_created_at"
     t.string "remember_token"
     t.text "preferences"
+    t.string "pgp_fpr"
     t.index ["email"], name: "index_users_on_email", unique: true
     t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
   end

db/seeds/admin.asc

@@ -0,0 +1,13 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+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+=45sx
+-----END PGP PUBLIC KEY BLOCK-----

lib/tasks/ldap.rake

@@ -21,7 +21,7 @@ namespace :ldap do
 
   desc "Add custom attributes to schema"
   task add_custom_attributes: :environment do |t, args|
-    %w[ admin service_enabled nostr_key ].each do |name|
+    %w[ admin service_enabled nostr_key pgp_key ].each do |name|
       Rake::Task["ldap:modify_ldap_schema"].invoke(name, "add")
       Rake::Task['ldap:modify_ldap_schema'].reenable
     end
@@ -29,7 +29,7 @@ namespace :ldap do
 
   desc "Delete custom attributes from schema"
   task delete_custom_attributes: :environment do |t, args|
-    %w[ admin service_enabled nostr_key ].each do |name|
+    %w[ admin service_enabled nostr_key pgp_key ].each do |name|
       Rake::Task["ldap:modify_ldap_schema"].invoke(name, "delete")
       Rake::Task['ldap:modify_ldap_schema'].reenable
     end

package.json

@@ -11,7 +11,7 @@
     "postcss-preset-env": "^7.8.3",
     "tailwindcss": "^3.2.4"
   },
-  "version": "0.9.0",
+  "version": "0.10.0",
   "scripts": {
     "build:css:tailwind": "tailwindcss --postcss -i ./app/assets/stylesheets/application.tailwind.css -o ./app/assets/builds/application.css",
     "build:css": "yarn run build:css:tailwind"

schemas/ldap/nostr_key.ldif

@@ -5,5 +5,5 @@ attributeTypes: ( 1.3.6.1.4.1.61554.1.1.2.1.21
   NAME 'nostrKey'
   DESC 'Nostr public key'
   EQUALITY caseIgnoreMatch
-  SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+  SYNTAX 1.3.6.1.4.1.1466.115.121.1.26
   SINGLE-VALUE )

schemas/ldap/pgp_key.ldif

@@ -0,0 +1,8 @@
+dn: cn=schema
+changetype: modify
+add: attributeTypes
+attributeTypes: ( 1.3.6.1.4.1.3401.8.2.11
+  NAME 'pgpKey'
+  DESC 'OpenPGP public key block'
+  SYNTAX 1.3.6.1.4.1.1466.115.121.1.26
+  SINGLE-VALUE )

spec/features/settings/account_spec.rb

@@ -14,6 +14,7 @@ RSpec.describe 'Account settings', type: :feature do
         .with("invalid password").and_return(false)
       allow_any_instance_of(User).to receive(:valid_ldap_authentication?)
         .with("valid password").and_return(true)
+      allow_any_instance_of(User).to receive(:pgp_pubkey).and_return(nil)
     end
 
     scenario 'fails with invalid password' do
@@ -55,4 +56,44 @@ RSpec.describe 'Account settings', type: :feature do
       end
     end
   end
+
+  feature "Update OpenPGP key" do
+    let(:invalid_key) { File.read("#{Rails.root}/spec/fixtures/files/pgp_key_invalid.asc") }
+    let(:valid_key_alice) { File.read("#{Rails.root}/spec/fixtures/files/pgp_key_valid_alice.asc") }
+    let(:fingerprint_alice) { "EB85BB5FA33A75E15E944E63F231550C4F47E38E" }
+
+    before do
+      login_as user, :scope => :user
+      allow_any_instance_of(User).to receive(:ldap_entry).and_return({
+        uid: user.cn, ou: user.ou, display_name: nil, pgp_key: nil
+      })
+    end
+
+    scenario 'rejects an invalid key' do
+      expect(UserManager::UpdatePgpKey).not_to receive(:call)
+
+      visit setting_path(:account)
+      fill_in 'Public key', with: invalid_key
+      click_button "Save"
+
+      expect(current_url).to eq(setting_url(:account))
+      within ".error-msg" do
+        expect(page).to have_content("This is not a valid armored PGP public key block")
+      end
+    end
+
+    scenario 'stores a valid key' do
+      expect(UserManager::UpdatePgpKey).to receive(:call)
+        .with(user: user).and_return(true)
+
+      visit setting_path(:account)
+      fill_in 'Public key', with: valid_key_alice
+      click_button "Save"
+
+      expect(current_url).to eq(setting_url(:account))
+      within ".flash-msg" do
+        expect(page).to have_content("Settings saved")
+      end
+    end
+  end
 end

spec/features/settings/profile_spec.rb

@@ -9,7 +9,7 @@ RSpec.describe 'Profile settings', type: :feature do
     allow(user).to receive(:display_name).and_return("Mark")
     allow_any_instance_of(User).to receive(:dn).and_return("cn=mwahlberg,ou=kosmos.org,cn=users,dc=kosmos,dc=org")
     allow_any_instance_of(User).to receive(:ldap_entry).and_return({
-      uid: user.cn, ou: user.ou, display_name: "Mark"
+      uid: user.cn, ou: user.ou, display_name: "Mark", pgp_key: nil
     })
     allow_any_instance_of(User).to receive(:avatar).and_return(avatar_base64)
 

spec/features/signup_spec.rb

@@ -52,7 +52,7 @@ RSpec.describe "Signup", type: :feature do
       click_button "Continue"
       expect(page).to have_content("Choose a password")
 
-      expect(CreateAccount).to receive(:call)
+      expect(UserManager::CreateAccount).to receive(:call)
         .with(account: {
           username: "tony", domain: "kosmos.org",
           email: "tony@example.com", password: "a-valid-password",
@@ -96,7 +96,7 @@ RSpec.describe "Signup", type: :feature do
       click_button "Create account"
       expect(page).to have_content("Password is too short")
 
-      expect(CreateAccount).to receive(:call)
+      expect(UserManager::CreateAccount).to receive(:call)
         .with(account: {
           username: "tony", domain: "kosmos.org",
           email: "tony@example.com", password: "a-valid-password",

spec/fixtures/files/pgp_key_invalid.asc

@@ -0,0 +1,11 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+b7O1u120JkFsaWNlIExvdmVsYWNlIDxhbGljZUBvcGVucGdwLmV4YW1wbGU+iJAE
+ExYIADgCGwMFCwkIBwIGFQoJCAsCBBYCAwECHgECF4AWIQTrhbtfozp14V6UTmPy
+MVUMT0fjjgUCXaWfOgAKCRDyMVUMT0fjjukrAPoDnHBSogOmsHOsd9qGsiZpgRnO
+dypvbm+QtXZqth9rvwD9HcDC0tC+PHAsO7OTh1S1TC9RiJsvawAfCPaQZoed8gK4
+OARcRwTpEgorBgEEAZdVAQUBAQdAQv8GIa2rSTzgqbXCpDDYMiKRVitCsy203x3s
+E9+eviIDAQgHiHgEGBYIACAWIQTrhbtfozp14V6UTmPyMVUMT0fjjgUCXEcE6QIb
+DAAKCRDyMVUMT0fjjlnQAQDFHUs6TIcxrNTtEZFjUFm1M0PJ1Dng/cDW4xN80fsn
+0QEA22Kr7VkCjeAEC08VSTeV+QFsmz55/lntWkwYWhmvOgE=
+=iIGO
+-----END PGP PUBLIC KEY BLOCK-----

spec/fixtures/files/pgp_key_valid_alice.asc

@@ -0,0 +1,16 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+Comment: Alice's OpenPGP certificate
+Comment: https://www.ietf.org/id/draft-bre-openpgp-samples-01.html
+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+=iIGO
+
+-----END PGP PUBLIC KEY BLOCK-----

spec/fixtures/files/pgp_key_valid_jimmy.asc

@@ -0,0 +1,13 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+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+=KQbn
+-----END PGP PUBLIC KEY BLOCK-----

spec/helpers/services_helper_spec.rb

@@ -0,0 +1,25 @@
+require 'rails_helper'
+
+describe ServicesHelper do
+
+  describe "#service_human_name" do
+    it "returns the human name when it's configured" do
+      expect(service_human_name("mastodon")).to eq("Mastodon")
+    end
+
+    it "returns the key when there is no human name" do
+      expect(service_human_name("ejabberd")).to eq("ejabberd")
+    end
+  end
+
+  describe "#service_display_name" do
+    it "returns the display name when it's configured" do
+      expect(service_display_name("lndhub")).to eq("Lightning Network")
+    end
+
+    it "returns the human name when there is no display name" do
+      expect(service_display_name("mastodon")).to eq("Mastodon")
+    end
+  end
+
+end

spec/jobs/create_ldap_user_job_spec.rb

@@ -44,7 +44,7 @@ RSpec.describe CreateLdapUserJob, type: :job do
 
   it "adds default services for pre-confirmed accounts" do
     allow(ldap_client_mock).to receive(:add) # spy on mock
-    allow(Setting).to receive(:default_services).and_return(["xmpp", "discourse"])
+    Setting.default_services = ["ejabberd", "discourse"]
 
     perform_enqueued_jobs { job_for_preconfirmed_account }
 
@@ -56,7 +56,7 @@ RSpec.describe CreateLdapUserJob, type: :job do
         sn: "halfinney",
         uid: "halfinney",
         mail: "halfinney@example.com",
-        serviceEnabled: ["xmpp", "discourse"],
+        serviceEnabled: ["ejabberd", "discourse"],
         userPassword: "remember-remember-the-5th-of-november"
       }
     )

spec/jobs/xmpp_exchange_contacts_job_spec.rb

@@ -13,7 +13,7 @@ RSpec.describe XmppExchangeContactsJob, type: :job do
   before do
     stub_request(:post, "http://xmpp.example.com/api/add_rosteritem")
       .to_return(status: 200, body: "", headers: {})
-    allow_any_instance_of(User).to receive(:services_enabled).and_return(["xmpp"])
+    allow_any_instance_of(User).to receive(:services_enabled).and_return(["ejabberd"])
   end
 
   it "posts add_rosteritem commands to the ejabberd API" do

spec/mailers/notification_mailer_spec.rb

@@ -0,0 +1,87 @@
+# spec/mailers/welcome_mailer_spec.rb
+require 'rails_helper'
+
+RSpec.describe NotificationMailer, type: :mailer do
+  describe '#lightning_sats_received' do
+
+    context "without PGP key" do
+      let(:user) { create(:user, cn: "phil", email: 'phil@example.com') }
+
+      before do
+        allow_any_instance_of(User).to receive(:ldap_entry).and_return({
+          uid: user.cn, ou: user.ou, display_name: nil, pgp_key: nil
+        })
+      end
+
+      describe "unencrypted email" do
+        let(:mail) { described_class.with(user: user, amount_sats: 21000).lightning_sats_received }
+
+        it 'renders the correct to/from headers' do
+          expect(mail.to).to eq([user.email])
+          expect(mail.from).to eq(['accounts@kosmos.org'])
+        end
+
+        it 'renders the correct subject' do
+          expect(mail.subject).to eq('Sats received')
+        end
+
+        it 'uses the correct content type' do
+          expect(mail.header['content-type'].to_s).to include('text/plain')
+        end
+
+        it 'renders the body with correct content' do
+          expect(mail.body.encoded).to match(/You just received 21,000 sats/)
+          expect(mail.body.encoded).to include(user.address)
+        end
+
+        it 'includes a link to the lightning service page' do
+          expect(mail.body.encoded).to include("https://accounts.kosmos.org/services/lightning")
+        end
+      end
+    end
+
+    context "with PGP key" do
+      let(:pgp_pubkey) { File.read("#{Rails.root}/spec/fixtures/files/pgp_key_valid_alice.asc") }
+      let(:pgp_fingerprint) { "EB85BB5FA33A75E15E944E63F231550C4F47E38E" }
+      let(:user) { create(:user, id: 2, cn: "alice", email: 'alice@example.com', pgp_fpr: pgp_fingerprint) }
+
+      before do
+        allow_any_instance_of(User).to receive(:ldap_entry).and_return({
+          uid: user.cn, ou: user.ou, display_name: nil, pgp_key: pgp_pubkey
+        })
+      end
+
+      describe "encrypted email" do
+        let(:mail) { described_class.with(user: user, amount_sats: 21000).lightning_sats_received }
+
+        it 'renders the correct to/from headers' do
+          expect(mail.to).to eq([user.email])
+          expect(mail.from).to eq(['accounts@kosmos.org'])
+        end
+
+        it 'encrypts the subject line' do
+          expect(mail.subject).to eq('...')
+        end
+
+        it 'uses the correct content type' do
+          expect(mail.header['content-type'].to_s).to include('multipart/encrypted')
+          expect(mail.header['content-type'].to_s).to include('protocol="application/pgp-encrypted"')
+        end
+
+        it 'renders the PGP version part' do
+          expect(mail.body.encoded).to include("Content-Type: application/pgp-encrypted")
+          expect(mail.body.encoded).to include("Content-Description: PGP/MIME version identification")
+          expect(mail.body.encoded).to include("Version: 1")
+        end
+
+        it 'renders the encrypted PGP part' do
+          expect(mail.body.encoded).to include('Content-Type: application/octet-stream; name="encrypted.asc"')
+          expect(mail.body.encoded).to include('Content-Description: OpenPGP encrypted message')
+          expect(mail.body.encoded).to include('Content-Disposition: inline; filename="encrypted.asc"')
+          expect(mail.body.encoded).to include('-----BEGIN PGP MESSAGE-----')
+          expect(mail.body.encoded).to include('hF4DR')
+        end
+      end
+    end
+  end
+end

spec/models/setting_spec.rb

@@ -0,0 +1,25 @@
+require 'rails_helper'
+
+RSpec.describe Setting, type: :model do
+
+  describe ".available_services" do
+    before do
+      Setting.discourse_enabled = true
+      Setting.ejabberd_enabled = true
+      Setting.email_enabled = false
+      Setting.gitea_enabled = false
+      Setting.lndhub_enabled = true
+      Setting.mastodon_enabled = true
+      Setting.mediawiki_enabled = false
+      Setting.nostr_enabled = false
+      Setting.remotestorage_enabled = true
+    end
+
+    it "contains all enabled services" do
+      expect(Setting.available_services).to eq(%w[
+        discourse ejabberd lndhub mastodon remotestorage
+      ])
+    end
+  end
+
+end

spec/models/user_spec.rb

@@ -1,20 +1,16 @@
 require 'rails_helper'
 
 RSpec.describe User, type: :model do
-  let(:user) { create :user, cn: "philipp" }
+  let(:user) { create :user, cn: "philipp", ou: "kosmos.org", email: "philipp@example.com" }
   let(:dn) { "cn=philipp,ou=kosmos.org,cn=users,dc=kosmos,dc=org" }
 
   describe "#address" do
-    let(:user) { build :user, cn: "jimmy", ou: "kosmos.org" }
-
     it "returns the user address" do
-      expect(user.address).to eq("jimmy@kosmos.org")
+      expect(user.address).to eq("philipp@kosmos.org")
     end
   end
 
   describe "#mastodon_address" do
-    let(:user) { build :user, cn: "jimmy", ou: "kosmos.org" }
-
     context "Mastodon service not configured" do
       before do
         Setting.mastodon_enabled = false
@@ -32,7 +28,7 @@ RSpec.describe User, type: :model do
 
       describe "domain is the same as primary domain" do
         it "returns the user address" do
-          expect(user.mastodon_address).to eq("jimmy@kosmos.org")
+          expect(user.mastodon_address).to eq("philipp@kosmos.org")
         end
       end
 
@@ -42,7 +38,7 @@ RSpec.describe User, type: :model do
         end
 
         it "returns the user address" do
-          expect(user.mastodon_address).to eq("jimmy@kosmos.social")
+          expect(user.mastodon_address).to eq("philipp@kosmos.social")
         end
       end
 
@@ -78,9 +74,9 @@ RSpec.describe User, type: :model do
     it "returns the entries from the LDAP service attribute" do
       expect(user).to receive(:ldap_entry).and_return({
         uid: user.cn, ou: user.ou, mail: user.email, admin: nil,
-        services_enabled: ["discourse", "email", "gitea", "wiki", "xmpp"]
+        services_enabled: ["discourse", "ejabberd", "email", "gitea", "wiki"]
       })
-      expect(user.services_enabled).to eq(["discourse", "email", "gitea", "wiki", "xmpp"])
+      expect(user.services_enabled).to eq(["discourse", "ejabberd", "email", "gitea", "wiki"])
     end
   end
 
@@ -88,7 +84,7 @@ RSpec.describe User, type: :model do
     before do
       allow(user).to receive(:ldap_entry).and_return({
         uid: user.cn, ou: user.ou, mail: user.email, admin: nil,
-        services_enabled: ["gitea", "xmpp"]
+        services_enabled: ["ejabberd", "gitea"]
       })
     end
 
@@ -121,9 +117,9 @@ RSpec.describe User, type: :model do
 
     it "adds multiple service to the LDAP entry" do
       expect_any_instance_of(LdapService).to receive(:replace_attribute)
-        .with(dn, :serviceEnabled, ["discourse", "gitea", "wiki", "xmpp"]).and_return(true)
+        .with(dn, :serviceEnabled, ["discourse", "ejabberd", "gitea", "wiki"]).and_return(true)
 
-      user.enable_service([:wiki, :xmpp])
+      user.enable_service([:ejabberd, :wiki])
     end
   end
 
@@ -131,7 +127,7 @@ RSpec.describe User, type: :model do
     before do
       allow(user).to receive(:ldap_entry).and_return({
         uid: user.cn, ou: user.ou, mail: user.email, admin: nil,
-        services_enabled: ["discourse", "gitea", "xmpp"]
+        services_enabled: ["discourse", "ejabberd", "gitea"]
       })
       allow(user).to receive(:dn).and_return(dn)
     end
@@ -140,14 +136,14 @@ RSpec.describe User, type: :model do
       expect_any_instance_of(LdapService).to receive(:replace_attribute)
         .with(dn, :serviceEnabled, ["discourse", "gitea"]).and_return(true)
 
-      user.disable_service(:xmpp)
+      user.disable_service(:ejabberd)
     end
 
     it "removes multiple services from the LDAP entry" do
       expect_any_instance_of(LdapService).to receive(:replace_attribute)
         .with(dn, :serviceEnabled, ["discourse"]).and_return(true)
 
-      user.disable_service([:xmpp, "gitea"])
+      user.disable_service([:ejabberd, "gitea"])
     end
   end
 
@@ -178,7 +174,7 @@ RSpec.describe User, type: :model do
     after { clear_enqueued_jobs }
 
     it "enables default services" do
-      expect(user).to receive(:enable_service).with(%w[ discourse gitea mastodon mediawiki xmpp ])
+      expect(user).to receive(:enable_service).with(Setting.default_services)
       user.send :devise_after_confirmation
     end
 
@@ -239,7 +235,7 @@ RSpec.describe User, type: :model do
 
   describe "#nostr_pubkey" do
     before do
-      allow_any_instance_of(User).to receive(:ldap_entry)
+      allow(user).to receive(:ldap_entry)
         .and_return({ nostr_key: "07e188a1ff87ce171d517b8ed2bb7a31b1d3453a0db3b15379ec07b724d232f3" })
     end
 
@@ -250,7 +246,7 @@ RSpec.describe User, type: :model do
 
   describe "#nostr_pubkey_bech32" do
     before do
-      allow_any_instance_of(User).to receive(:ldap_entry)
+      allow(user).to receive(:ldap_entry)
         .and_return({ nostr_key: "07e188a1ff87ce171d517b8ed2bb7a31b1d3453a0db3b15379ec07b724d232f3" })
     end
 
@@ -258,4 +254,73 @@ RSpec.describe User, type: :model do
       expect(user.nostr_pubkey_bech32).to eq("npub1qlsc3g0lsl8pw8230w8d9wm6xxcax3f6pkemz5measrmwfxjxteslf2hac")
     end
   end
+
+  describe "OpenPGP key" do
+    let(:alice) { create :user, id: 2, cn: "alice", email: "alice@example.com" }
+    let(:jimmy) { create :user, id: 3, cn: "jimmy", email: "jimmy@example.com" }
+    let(:valid_key_alice) { File.read("#{Rails.root}/spec/fixtures/files/pgp_key_valid_alice.asc") }
+    let(:valid_key_jimmy) { File.read("#{Rails.root}/spec/fixtures/files/pgp_key_valid_jimmy.asc") }
+    let(:fingerprint_alice) { "EB85BB5FA33A75E15E944E63F231550C4F47E38E" }
+    let(:fingerprint_jimmy) { "316BF516236DAF77236B15F6057D93972FB862C3" }
+    let(:invalid_key) { File.read("#{Rails.root}/spec/fixtures/files/pgp_key_invalid.asc") }
+
+    before do
+      GPGME::Key.import(valid_key_alice)
+      GPGME::Key.import(valid_key_jimmy)
+      alice.update pgp_fpr: fingerprint_alice
+      jimmy.update pgp_fpr: fingerprint_jimmy
+      allow(alice).to receive(:ldap_entry).and_return({ pgp_key: valid_key_alice })
+      allow(jimmy).to receive(:ldap_entry).and_return({ pgp_key: valid_key_jimmy })
+    end
+
+    after do
+      alice.gnupg_key.delete!
+      jimmy.gnupg_key.delete!
+    end
+
+    describe "#acceptable_pgp_key_format" do
+      it "validates the record when the key is valid" do
+        alice.pgp_pubkey = valid_key_alice
+        expect(alice).to be_valid
+      end
+
+      it "adds a validation error when the key is not valid" do
+        user.pgp_pubkey = invalid_key
+        expect(user).to_not be_valid
+        expect(user.errors[:pgp_pubkey]).to be_present
+      end
+    end
+
+    describe "#pgp_pubkey" do
+      it "returns the raw pubkey from LDAP" do
+        expect(alice.pgp_pubkey).to eq(valid_key_alice)
+      end
+    end
+
+    describe "#gnupg_key" do
+      subject { alice.gnupg_key }
+
+      it "returns a GPGME::Key object from the system's GPG keyring" do
+        expect(subject).to be_a(GPGME::Key)
+        expect(subject.fingerprint).to eq(fingerprint_alice)
+        expect(subject.email).to eq("alice@openpgp.example")
+      end
+    end
+
+    describe "#pgp_pubkey_contains_user_address?" do
+      it "returns false when the user address is one of the UIDs of the key" do
+        expect(alice.pgp_pubkey_contains_user_address?).to eq(false)
+      end
+
+      it "returns true when the user address is missing from the UIDs of the key" do
+        expect(jimmy.pgp_pubkey_contains_user_address?).to eq(true)
+      end
+    end
+
+    describe "wkd_hash" do
+      it "returns a z-base32 encoded SHA-1 digest of the username" do
+        expect(alice.wkd_hash).to eq("kei1q4tipxxu1yj79k9kfukdhfy631xe")
+      end
+    end
+  end
 end

spec/requests/web_key_directory_spec.rb

@@ -0,0 +1,101 @@
+require 'rails_helper'
+
+RSpec.describe "OpenPGP Web Key Directory", type: :request do
+  describe "policy" do
+    it "returns an empty 200 response" do
+      get "/.well-known/openpgpkey/policy"
+      expect(response).to have_http_status(:ok)
+      expect(response.body).to be_empty
+    end
+  end
+
+  describe "non-existent user" do
+    it "returns a 404 status" do
+      get "/.well-known/openpgpkey/hu/fmb8gw3n4zdj4xpwaziki4mwcxr1368i?l=aristotle"
+      expect(response).to have_http_status(:not_found)
+    end
+  end
+
+  describe "user without pubkey" do
+    let(:user) { create :user, cn: 'bernd', ou: 'kosmos.org' }
+
+    it "returns a 404 status" do
+      get "/.well-known/openpgpkey/hu/kp95h369c89sx8ia1hn447i868nqyz4t?l=bernd"
+      expect(response).to have_http_status(:not_found)
+    end
+  end
+
+  describe "user with pubkey" do
+    let(:alice) { create :user, id: 2, cn: "alice", email: "alice@example.com" }
+    let(:jimmy) { create :user, id: 3, cn: "jimmy", email: "jimmy@example.com" }
+    let(:valid_key_alice) { File.read("#{Rails.root}/spec/fixtures/files/pgp_key_valid_alice.asc") }
+    let(:valid_key_jimmy) { File.read("#{Rails.root}/spec/fixtures/files/pgp_key_valid_jimmy.asc") }
+    let(:fingerprint_alice) { "EB85BB5FA33A75E15E944E63F231550C4F47E38E" }
+    let(:fingerprint_jimmy) { "316BF516236DAF77236B15F6057D93972FB862C3" }
+    let(:invalid_key) { File.read("#{Rails.root}/spec/fixtures/files/pgp_key_invalid.asc") }
+
+    before do
+      GPGME::Key.import(valid_key_alice)
+      GPGME::Key.import(valid_key_jimmy)
+      alice.update pgp_fpr: fingerprint_alice
+      jimmy.update pgp_fpr: fingerprint_jimmy
+    end
+
+    after do
+      alice.gnupg_key.delete!
+      jimmy.gnupg_key.delete!
+    end
+
+    describe "pubkey does not contain user address" do
+      before do
+        allow_any_instance_of(User).to receive(:ldap_entry)
+          .and_return({ pgp_key: valid_key_alice })
+      end
+
+      it "returns a 404 status" do
+        get "/.well-known/openpgpkey/hu/kei1q4tipxxu1yj79k9kfukdhfy631xe?l=alice"
+        expect(response).to have_http_status(:not_found)
+      end
+    end
+
+    describe "pubkey contains user address" do
+      before do
+        allow_any_instance_of(User).to receive(:ldap_entry)
+          .and_return({ pgp_key: valid_key_jimmy })
+      end
+
+      it "returns the pubkey in binary format" do
+        get "/.well-known/openpgpkey/hu/yuca4ky39mhwkjo78qb8zjgbfj1hg3yf?l=jimmy"
+        expect(response).to have_http_status(:ok)
+        expect(response.headers['Content-Type']).to eq("application/octet-stream")
+        expected_binary_data = File.binread("#{Rails.root}/spec/fixtures/files/pgp_key_valid_jimmy.pem")
+        expect(response.body).to eq(expected_binary_data)
+      end
+
+      context "with wrong capitalization of username" do
+        it "returns the pubkey as ASCII Armor plain text" do
+          get "/.well-known/openpgpkey/hu/yuca4ky39mhwkjo78qb8zjgbfj1hg3yf?l=JimmY"
+          expect(response).to have_http_status(:ok)
+          expected_binary_data = File.binread("#{Rails.root}/spec/fixtures/files/pgp_key_valid_jimmy.pem")
+          expect(response.body).to eq(expected_binary_data)
+        end
+      end
+
+      context "with .txt extension" do
+        it "returns the pubkey as ASCII Armor plain text" do
+          get "/.well-known/openpgpkey/hu/yuca4ky39mhwkjo78qb8zjgbfj1hg3yf.txt?l=jimmy"
+          expect(response).to have_http_status(:ok)
+          expect(response.body).to eq(valid_key_jimmy)
+          expect(response.headers['Content-Type']).to eq("text/plain")
+        end
+      end
+
+      context "invalid URL" do
+        it "returns a 422 status" do
+          get "/.well-known/openpgpkey/hu/123456abcdef?l=alice"
+          expect(response).to have_http_status(:not_found)
+        end
+      end
+    end
+  end
+end

spec/requests/webfinger_spec.rb

@@ -44,7 +44,7 @@ RSpec.describe "WebFinger", type: :request do
         before do
           allow_any_instance_of(User).to receive(:ldap_entry).and_return({
             uid: user.cn, ou: user.ou, mail: user.email, admin: nil,
-            services_enabled: ["xmpp"]
+            services_enabled: ["ejabberd"]
           })
         end
 
@@ -92,7 +92,13 @@ RSpec.describe "WebFinger", type: :request do
           expect(rs_link["href"]).to eql("#{Setting.rs_storage_url}/tony")
 
           oauth_url = rs_link["properties"]["http://tools.ietf.org/html/rfc6749#section-4.2"]
-          expect(oauth_url).to eql("http://www.example.com/rs/oauth/tony")
+          expect(oauth_url).to eql("http://accounts.kosmos.org/rs/oauth/tony")
+        end
+
+        it "returns CORS headers" do
+          get "/.well-known/nostr.json?name=bobdylan"
+          expect(response.headers['Access-Control-Allow-Origin']).to eq("*")
+          expect(response.headers['Access-Control-Allow-Methods']).to eq('GET')
         end
       end
 
@@ -100,7 +106,7 @@ RSpec.describe "WebFinger", type: :request do
         before do
           allow_any_instance_of(User).to receive(:ldap_entry).and_return({
             uid: user.cn, ou: user.ou, mail: user.email, admin: nil,
-            services_enabled: ["xmpp"]
+            services_enabled: ["ejabberd"]
           })
         end
 

spec/requests/well_known_spec.rb

@@ -46,6 +46,12 @@ RSpec.describe "Well-known URLs", type: :request do
         expect(res["names"]["bobdylan"]).to eq(user.nostr_pubkey)
       end
 
+      it "returns CORS headers" do
+        get "/.well-known/nostr.json?name=bobdylan"
+        expect(response.headers['Access-Control-Allow-Origin']).to eq("*")
+        expect(response.headers['Access-Control-Allow-Methods']).to eq('GET')
+      end
+
       context "without relay configured" do
         before do
           Setting.nostr_relay_url = ""
@@ -73,10 +79,36 @@ RSpec.describe "Well-known URLs", type: :request do
     end
 
     describe "placeholder username for domain's own pubkey" do
-      it "returns the configured nostr pubkey" do
-        get "/.well-known/nostr.json?name=_"
-        res = JSON.parse(response.body)
-        expect(res["names"]["_"]).to eq(Setting.nostr_public_key)
+      describe "for primary domain" do
+        context "no different pubkey configured for primary domain" do
+          it "returns the akkounts nostr pubkey" do
+            get "/.well-known/nostr.json?name=_"
+            res = JSON.parse(response.body)
+            expect(res["names"]["_"]).to eq("bdd76ce2934b2f591f9fad2ebe9da18f20d2921de527494ba00eeaa0a0efadcf")
+          end
+        end
+
+        context "different pubkey configured for primary domain" do
+          before do
+            Setting.nostr_public_key_primary_domain = "b3e8f62fbe41217ffc0aa1e178d297339932d8ba4f46d9c7df3b61575e78fecc"
+          end
+
+          it "returns the primary domain's nostr pubkey" do
+            get "/.well-known/nostr.json?name=_"
+            res = JSON.parse(response.body)
+            expect(res["names"]["_"]).to eq("b3e8f62fbe41217ffc0aa1e178d297339932d8ba4f46d9c7df3b61575e78fecc")
+          end
+        end
+      end
+
+      describe "for akkounts domain" do
+        it "returns the configured nostr pubkey" do
+          headers = { "X-Forwarded-Host" => "accounts.kosmos.org" }
+          get "/.well-known/nostr.json?name=_"
+
+          res = JSON.parse(response.body)
+          expect(res["names"]["_"]).to eq("bdd76ce2934b2f591f9fad2ebe9da18f20d2921de527494ba00eeaa0a0efadcf")
+        end
       end
 
       context "with relay configured" do

spec/services/user_manager/create_account_spec.rb

@@ -1,8 +1,8 @@
 require 'rails_helper'
 
-RSpec.describe CreateAccount, type: :model do
+RSpec.describe UserManager::CreateAccount, type: :model do
   describe "#create_user_in_database" do
-    let(:service) { CreateAccount.new(account: {
+    let(:service) { described_class.new(account: {
       username: 'isaacnewton',
       email: 'isaacnewton@example.com',
       password: 'bright-ideas-in-autumn'
@@ -19,7 +19,7 @@ RSpec.describe CreateAccount, type: :model do
 
   describe "#update_invitation" do
     let(:invitation) { create :invitation }
-    let(:service) { CreateAccount.new(account: {
+    let(:service) { described_class.new(account: {
       username: 'isaacnewton',
       email: 'isaacnewton@example.com',
       password: 'bright-ideas-in-autumn',
@@ -42,7 +42,7 @@ RSpec.describe CreateAccount, type: :model do
   describe "#add_ldap_document" do
     include ActiveJob::TestHelper
 
-    let(:service) { CreateAccount.new(account: {
+    let(:service) { described_class.new(account: {
       username: 'halfinney',
       email: 'halfinney@example.com',
       password: 'remember-remember-the-5th-of-november'
@@ -68,7 +68,7 @@ RSpec.describe CreateAccount, type: :model do
   describe "#add_ldap_document for pre-confirmed account" do
     include ActiveJob::TestHelper
 
-    let(:service) { CreateAccount.new(account: {
+    let(:service) { described_class.new(account: {
       username: 'halfinney',
       email: 'halfinney@example.com',
       password: 'remember-remember-the-5th-of-november',
@@ -89,7 +89,7 @@ RSpec.describe CreateAccount, type: :model do
   describe "#create_lndhub_account" do
     include ActiveJob::TestHelper
 
-    let(:service) { CreateAccount.new(account: {
+    let(:service) { described_class.new(account: {
       username: 'halfinney', email: 'halfinney@example.com',
       password: 'bright-ideas-in-winter'
     })}

spec/services/user_manager/create_invitations_spec.rb

@@ -1,13 +1,13 @@
 require 'rails_helper'
 
-RSpec.describe CreateInvitations, type: :model do
+RSpec.describe UserManager::CreateInvitations, type: :model do
   include ActiveJob::TestHelper
 
   let(:user) { create :user }
 
   describe "#call" do
     before do
-      CreateInvitations.call(user: user, amount: 5)
+      described_class.call(user: user, amount: 5)
     end
 
     after(:each) { clear_enqueued_jobs }
@@ -28,7 +28,7 @@ RSpec.describe CreateInvitations, type: :model do
 
   describe "#call with notification disabled" do
     before do
-      CreateInvitations.call(user: user, amount: 3, notify: false)
+      described_class.call(user: user, amount: 3, notify: false)
     end
 
     after(:each) { clear_enqueued_jobs }

spec/services/user_manager/update_pgp_key_spec.rb

@@ -0,0 +1,74 @@
+require 'rails_helper'
+
+RSpec.describe UserManager::UpdatePgpKey, type: :model do
+  include ActiveJob::TestHelper
+
+  let(:alice) { create :user, cn: "alice" }
+  let(:dn)    { "cn=alice,ou=kosmos.org,cn=users,dc=kosmos,dc=org" }
+  let(:pubkey_asc) { File.read("#{Rails.root}/spec/fixtures/files/pgp_key_valid_alice.asc") }
+  let(:fingerprint) { "EB85BB5FA33A75E15E944E63F231550C4F47E38E" }
+
+  before do
+    allow(alice).to receive(:dn).and_return(dn)
+    allow(alice).to receive(:ldap_entry).and_return({
+      uid: alice.cn, ou: alice.ou, pgp_key: nil
+    })
+  end
+
+  describe "#call" do
+    context "with valid key" do
+      before do
+        alice.pgp_pubkey = pubkey_asc
+
+        allow(LdapManager::UpdatePgpKey).to receive(:call)
+          .with(dn: alice.dn, pubkey: pubkey_asc)
+      end
+
+      after do
+        alice.gnupg_key.delete!
+      end
+
+      it "imports the key into the GnuPG keychain" do
+        described_class.call(user: alice)
+        expect(alice.gnupg_key).to be_present
+      end
+
+      it "stores the key's fingerprint on the user record" do
+        described_class.call(user: alice)
+        expect(alice.pgp_fpr).to eq(fingerprint)
+      end
+
+      it "updates the user's LDAP entry with the new key" do
+        expect(LdapManager::UpdatePgpKey).to receive(:call)
+          .with(dn: alice.dn, pubkey: pubkey_asc)
+        described_class.call(user: alice)
+      end
+    end
+
+    context "with empty key" do
+      before do
+        alice.update pgp_fpr: fingerprint
+        alice.pgp_pubkey = ""
+
+        allow(LdapManager::UpdatePgpKey).to receive(:call)
+          .with(dn: alice.dn, pubkey: "")
+      end
+
+      it "does not attempt to import the key" do
+        expect(GPGME::Key).not_to receive(:import)
+        described_class.call(user: alice)
+      end
+
+      it "removes the key's fingerprint from the user record" do
+        described_class.call(user: alice)
+        expect(alice.pgp_fpr).to be_nil
+      end
+
+      it "removes the key from the user's LDAP entry" do
+        expect(LdapManager::UpdatePgpKey).to receive(:call)
+          .with(dn: alice.dn, pubkey: "")
+        described_class.call(user: alice)
+      end
+    end
+  end
+end