Merge pull request 'Add dashboard icons for remoteStorage and email' (#200) from chore/dashboard_service_icons into master

Reviewed-on: #200

.env.example

@@ -29,8 +29,10 @@
 
 #
 # Service Integrations
+# (sorted alphabetically by service name)
 #
 
+# BTCPAY_PUBLIC_URL='https://btcpay.example.com'
 # BTCPAY_API_URL='http://localhost:23001/api/v1'
 # BTCPAY_STORE_ID=''
 # BTCPAY_AUTH_TOKEN=''
@@ -57,8 +59,13 @@
 # LNDHUB_PG_PASSWORD=''
 
 # MASTODON_PUBLIC_URL='https://kosmos.social'
+# MASTODON_ADDRESS_DOMAIN='https://kosmos.org'
 
 # MEDIAWIKI_PUBLIC_URL='https://wiki.kosmos.org'
 
+# NOSTR_PRIVATE_KEY='123456abcdef...'
+# NOSTR_PUBLIC_KEY='123456abcdef...'
+# NOSTR_RELAY_URL='wss://nostr.kosmos.org'
+
 # RS_STORAGE_URL='https://storage.kosmos.org'
 # RS_REDIS_URL='redis://localhost:6379/2'

.env.test

@@ -1,7 +1,9 @@
 PRIMARY_DOMAIN=kosmos.org
+AKKOUNTS_DOMAIN=accounts.kosmos.org
 
 REDIS_URL='redis://localhost:6379/0'
 
+BTCPAY_PUBLIC_URL='https://btcpay.example.com'
 BTCPAY_API_URL='http://btcpay.example.com/api/v1'
 BTCPAY_STORE_ID='123456'
 
@@ -10,10 +12,15 @@ DISCOURSE_CONNECT_SECRET='discourse_connect_ftw'
 
 EJABBERD_API_URL='http://xmpp.example.com/api'
 
+MASTODON_PUBLIC_URL='http://example.social'
+
 LNDHUB_API_URL='http://localhost:3026'
 LNDHUB_PUBLIC_URL='https://lndhub.kosmos.org'
 LNDHUB_PUBLIC_KEY='024cd3be18617f39cf645851e3ba63f51fc13f0bb09e3bb25e6fd4de556486d946'
 
+NOSTR_PRIVATE_KEY='7c3ef7e448505f0615137af38569d01807d3b05b5005d5ecf8aaafcd40323cea'
+NOSTR_PUBLIC_KEY='bdd76ce2934b2f591f9fad2ebe9da18f20d2921de527494ba00eeaa0a0efadcf'
+
 RS_STORAGE_URL='https://storage.kosmos.org'
 RS_REDIS_URL='redis://localhost:6379/1'
 

Gemfile

@@ -62,7 +62,7 @@ gem "sentry-rails"
 gem 'discourse_api'
 gem "lnurl"
 gem 'manifique'
-gem 'nostr'
+gem 'nostr', '~> 0.6.0'
 
 group :development, :test do
   # Use sqlite3 as the database for Active Record

Gemfile.lock

@@ -155,7 +155,7 @@ GEM
       ruby2_keywords
     e2mmap (0.1.0)
     ecdsa (1.2.0)
-    ecdsa_ext (0.5.0)
+    ecdsa_ext (0.5.1)
       ecdsa (~> 1.2.0)
     erubi (1.12.0)
     et-orbi (1.2.7)
@@ -278,9 +278,9 @@ GEM
       racc (~> 1.4)
     nokogiri (1.16.0-x86_64-linux)
       racc (~> 1.4)
-    nostr (0.5.0)
+    nostr (0.6.0)
       bech32 (~> 1.4)
-      bip-schnorr (~> 0.6)
+      bip-schnorr (~> 0.7)
       ecdsa (~> 1.2)
       event_emitter (~> 0.2)
       faye-websocket (~> 0.11)
@@ -517,7 +517,7 @@ DEPENDENCIES
   lockbox
   manifique
   net-ldap
-  nostr
+  nostr (~> 0.6.0)
   pagy (~> 6.0, >= 6.0.2)
   pg (~> 1.5)
   puma (~> 4.1)

app/assets/stylesheets/components/buttons.css

@@ -32,11 +32,21 @@
            focus:ring-blue-400 focus:ring-opacity-75;
   }
 
+  .btn-emerald {
+    @apply bg-emerald-500 hover:bg-emerald-600 text-white
+           focus:ring-emerald-400 focus:ring-opacity-75;
+  }
+
   .btn-red {
     @apply bg-red-600 hover:bg-red-700 text-white
            focus:ring-red-500 focus:ring-opacity-75;
   }
 
+  .btn-outline-purple {
+    @apply border-2 border-purple-500 hover:bg-purple-100
+           focus:ring-purple-400 focus:ring-opacity-75;
+  }
+
   .btn:disabled {
     @apply bg-gray-100 hover:bg-gray-200 text-gray-400
            focus:ring-gray-300 focus:ring-opacity-75;

app/assets/stylesheets/components/dashboard_services.css

@@ -1,5 +1,5 @@
 @layer components {
   .services > div > a {
-    background-image: linear-gradient(110deg, rgba(255,255,255,0.99) 0, rgba(255,255,255,0.88) 100%);
+    background-image: linear-gradient(110deg, rgba(255,255,255,0.99) 20%, rgba(255,255,255,0.88) 100%);
   }
 }

app/components/form_elements/fieldset_resettable_setting_component.html.erb

@@ -6,6 +6,7 @@
     ) do %>
   <%= method("#{@type}_field").call :setting, @key,
     value: Setting.public_send(@key),
+    placeholder: @placeholder,
     data: {
       :'default-value' => Setting.get_field(@key)[:default]
     },

app/components/form_elements/fieldset_resettable_setting_component.rb

@@ -2,7 +2,7 @@
 
 module FormElements
   class FieldsetResettableSettingComponent < ViewComponent::Base
-    def initialize(tag: "li", key:, type: :text, title:, description: nil)
+    def initialize(tag: "li", key:, type: :text, title:, description: nil, placeholder: nil)
       @tag         = tag
       @positioning = :vertical
       @title       = title
@@ -10,6 +10,7 @@ module FormElements
       @key         = key.to_sym
       @type        = type
       @resettable  = is_resettable?(@key)
+      @placeholder = placeholder
     end
 
     def is_resettable?(key)

app/components/form_elements/fieldset_toggle_component.html.erb

@@ -6,7 +6,7 @@
   <div class="flex flex-col">
     <label class="font-bold mb-1"><%= @title %></label>
     <% if @description.present? %>
-    <p class="text-gray-500"><%= @descripton %></p>
+    <p class="text-gray-500"><%= @description %></p>
     <% end %>
   </div>
   <div class="relative ml-4 inline-flex flex-shrink-0">

app/components/form_elements/fieldset_toggle_component.rb

@@ -12,7 +12,7 @@ module FormElements
       @enabled = enabled
       @input_enabled = input_enabled
       @title = title
-      @descripton = description
+      @description = description
       @button_text = @enabled ? "Switch off" : "Switch on"
     end
   end

app/components/main_with_tabnav_component.html.erb

@@ -1,5 +1,5 @@
 <main class="w-full max-w-6xl mx-auto pb-12 px-4 md:px-6 lg:px-8">
-  <div class="bg-white rounded-lg shadow">
+  <div class="md:min-h-[50vh] bg-white rounded-lg shadow">
     <div class="px-6 sm:px-12 pt-2 sm:pt-4">
       <%= render partial: @tabnav_partial %>
     </div>

app/components/modal_component.html.erb

@@ -12,7 +12,7 @@
 
     <!-- Modal Container -->
     <div data-modal-target="container"
-         class="max-h-screen w-auto max-w-lg relative
+         class="relative m-4 max-h-screen w-auto max-w-full
                 hidden animate-scale-in fixed inset-0 overflow-y-auto flex items-center justify-center">
       <!-- Modal Card -->
       <div class="m-1 bg-white rounded shadow">

app/components/notification_component.rb

@@ -34,6 +34,8 @@ class NotificationComponent < ViewComponent::Base
       'alert-octagon'
     when 'alert'
       'alert-octagon'
+    when 'warning'
+      'alert-octagon'
     else
       'info'
     end

app/controllers/admin/donations_controller.rb

@@ -3,18 +3,16 @@ class Admin::DonationsController < Admin::BaseController
   before_action :set_current_section, only: [:index, :show, :new, :edit]
 
   # GET /donations
-  # GET /donations.json
   def index
-    @pagy, @donations = pagy(Donation.all.order('created_at desc'))
+    @pagy, @donations = pagy(Donation.completed.order('paid_at desc'))
 
     @stats = {
-      overall_sats: @donations.all.sum("amount_sats"),
+      overall_sats: @donations.sum("amount_sats"),
-      donor_count: Donation.distinct.count(:user_id)
+      donor_count: Donation.completed.count(:user_id)
     }
   end
 
   # GET /donations/1
-  # GET /donations/1.json
   def show
   end
 
@@ -28,54 +26,41 @@ class Admin::DonationsController < Admin::BaseController
   end
 
   # POST /donations
-  # POST /donations.json
   def create
     @donation = Donation.new(donation_params)
 
-    respond_to do |format|
+    if @donation.paid_at == nil
-      if @donation.save
+      @donation.errors.add(:paid_at, message: "is required")
-        format.html do
+      render :new, status: :unprocessable_entity and return
-          redirect_to admin_donation_url(@donation), flash: {
+    end
-            success: 'Donation was successfully created.'
+
-          }
+    if @donation.save
-        end
+      redirect_to admin_donation_url(@donation), flash: {
-        format.json { render :show, status: :created, location: @donation }
+        success: 'Donation was successfully created.'
-      else
+      }
-        format.html { render :new, status: :unprocessable_entity }
+    else
-        format.json { render json: @donation.errors, status: :unprocessable_entity }
+      render :new, status: :unprocessable_entity
-      end
     end
   end
 
-  # PATCH/PUT /donations/1
+  # PUT /donations/1
-  # PATCH/PUT /donations/1.json
   def update
-    respond_to do |format|
+    if @donation.update(donation_params)
-      if @donation.update(donation_params)
+      redirect_to admin_donation_url(@donation), flash: {
-        format.html do
+        success: 'Donation was successfully updated.'
-          redirect_to admin_donation_url(@donation), flash: {
+      }
-            success: 'Donation was successfully updated.'
+    else
-          }
+      render :edit, status: :unprocessable_entity
-        end
-        format.json { render :show, status: :ok, location: @donation }
-      else
-        format.html { render :edit, status: :unprocessable_entity }
-        format.json { render json: @donation.errors, status: :unprocessable_entity }
-      end
     end
   end
 
   # DELETE /donations/1
-  # DELETE /donations/1.json
   def destroy
     @donation.destroy
-    respond_to do |format|
+
-      format.html do redirect_to admin_donations_url, flash: {
+    redirect_to admin_donations_url, flash: {
-        success: 'Donation was successfully destroyed.'
+      success: 'Donation was successfully destroyed.'
-      }
+    }
-      end
-      format.json { head :no_content }
-    end
   end
 
   private
@@ -86,7 +71,10 @@ class Admin::DonationsController < Admin::BaseController
 
     # Only allow a list of trusted parameters through.
     def donation_params
-      params.require(:donation).permit(:user_id, :amount_sats, :amount_eur, :amount_usd, :public_name, :paid_at)
+      params.require(:donation).permit(
+        :user_id, :donation_method,
+        :amount_sats, :fiat_amount, :fiat_currency,
+        :public_name, :paid_at)
     end
 
     def set_current_section

app/controllers/application_controller.rb

@@ -41,4 +41,31 @@ class ApplicationController < ActionController::Base
   def after_sign_in_path_for(user)
     session[:user_return_to] || root_path
   end
+
+  def lndhub_authenticate(options={})
+    if session[:ln_auth_token].present? && !options[:force_reauth]
+      @ln_auth_token = session[:ln_auth_token]
+    else
+      lndhub = Lndhub.new
+      auth_token = lndhub.authenticate(current_user)
+      session[:ln_auth_token] = auth_token
+      @ln_auth_token = auth_token
+    end
+  rescue => e
+    Sentry.capture_exception(e) if Setting.sentry_enabled?
+  end
+
+  def lndhub_fetch_balance
+    @balance = LndhubManager::FetchUserBalance.call(auth_token: @ln_auth_token)
+  rescue AuthError
+    lndhub_authenticate(force_reauth: true)
+    raise if @fetch_balance_retried
+    @fetch_balance_retried = true
+    lndhub_fetch_balance
+  end
+
+  def nostr_event_from_params
+    params.permit!
+    params[:signed_event].to_h.symbolize_keys
+  end
 end

app/controllers/contributions/donations_controller.rb

@@ -1,10 +1,129 @@
 class Contributions::DonationsController < ApplicationController
-  before_action :authenticate_user!
+  include BtcpayHelper
 
-  # GET /donations
+  before_action :authenticate_user!
-  # GET /donations.json
+  before_action :set_donation_methods, only: [:index, :create]
+  before_action :require_donation_method_enabled, only: [:create]
+  before_action :validate_donation_params, only: [:create]
+  before_action :set_donation, only: [:confirm_btcpay]
+
+  # GET /contributions/donations
   def index
-    @donations = current_user.donations.completed
     @current_section = :contributions
+    @donations_completed = current_user.donations.completed.order('paid_at desc')
+    @donations_pending = current_user.donations.processing.order('created_at desc')
+
+    if Setting.lndhub_enabled?
+      begin
+        lndhub_authenticate
+        lndhub_fetch_balance
+      rescue
+        @balance = 0
+      end
+    end
   end
+
+  # POST /contributions/donations
+  def create
+    if params[:currency] == "sats"
+      fiat_amount = nil
+      fiat_currency = nil
+      amount_sats = params[:amount]
+    else
+      fiat_amount = params[:amount].to_i
+      fiat_currency = params[:currency]
+      amount_sats = nil
+    end
+
+    @donation = current_user.donations.create!(
+      donation_method: params[:donation_method],
+      payment_method: nil,
+      paid_at: nil,
+      amount_sats: amount_sats,
+      fiat_amount: (fiat_amount.nil? ? nil : fiat_amount * 100), # store in cents
+      fiat_currency: fiat_currency,
+      public_name: params[:public_name]
+    )
+
+    case params[:donation_method]
+    when "btcpay"
+      res = BtcpayManager::CreateInvoice.call(
+        amount: fiat_amount || (amount_sats.to_f / 100000000),
+        currency: fiat_currency || "BTC",
+        redirect_url: confirm_btcpay_contributions_donation_url(@donation)
+      )
+
+      @donation.update! btcpay_invoice_id: res["id"]
+
+      redirect_to btcpay_checkout_url(res["id"]), allow_other_host: true
+    else
+      redirect_to contributions_donations_url, flash: {
+        error: "Donation method currently not available"
+      }
+    end
+  end
+
+  def confirm_btcpay
+    redirect_to contributions_donations_url and return if @donation.completed?
+
+    invoice = BtcpayManager::FetchInvoice.call(invoice_id: @donation.btcpay_invoice_id)
+
+    if @donation.amount_sats.present?
+      # TODO make default fiat currency configurable and/or determine from user's
+      # i18n browser settings
+      @donation.fiat_currency = "EUR"
+      exchange_rate = BtcpayManager::FetchExchangeRate.call(fiat_currency: @donation.fiat_currency)
+      @donation.fiat_amount = (((@donation.amount_sats.to_f / 100000000) * exchange_rate) * 100).to_i
+    else
+      amt_str = invoice["paymentMethods"].first["amount"]
+      @donation.amount_sats = amt_str.tr(".","").sub(/0*$/, "").to_i
+    end
+
+    case invoice["status"]
+    when "Settled"
+      @donation.paid_at = DateTime.now
+      @donation.payment_status = "settled"
+      @donation.save!
+      flash_message = { 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." }
+        BtcpayCheckDonationJob.set(wait: 20.seconds).perform_later(@donation)
+      end
+    when "Expired"
+      flash_message = { warning: "The payment request for this donation has expired" }
+    else
+      flash_message = { warning: "Could not determine status of payment" }
+    end
+
+    redirect_to contributions_donations_url, flash: flash_message
+  end
+
+  private
+
+    def set_donation
+      @donation = current_user.donations.find_by(id: params[:id])
+      http_status :not_found unless @donation.present?
+    end
+
+    def set_donation_methods
+      @donation_methods = []
+      @donation_methods.push :btcpay if Setting.btcpay_enabled?
+      @donation_methods.push :lndhub if Setting.lndhub_enabled?
+      @donation_methods.push :opencollective if Setting.opencollective_enabled?
+    end
+
+    def require_donation_method_enabled
+      http_status :forbidden unless @donation_methods.include?(
+        params[:donation_method].to_sym
+      )
+    end
+
+    def validate_donation_params
+      if !%w[EUR USD sats].include?(params[:currency]) || (params[:amount].to_i <= 0)
+        http_status :unprocessable_entity
+      end
+    end
 end

app/controllers/lnurlpay_controller.rb

@@ -1,13 +1,15 @@
 class LnurlpayController < ApplicationController
   before_action :check_service_available
   before_action :find_user
+  before_action :set_cors_access_control_headers, only: [:invoice]
 
   MIN_SATS = 10
   MAX_SATS = 1_000_000
   MAX_COMMENT_CHARS = 100
 
+  # GET /.well-known/lnurlp/:username
   def index
-    render json: {
+    res = {
       status: "OK",
       callback: "https://#{Setting.accounts_domain}/lnurlpay/#{@user.cn}/invoice",
       tag: "payRequest",
@@ -16,8 +18,16 @@ class LnurlpayController < ApplicationController
       metadata: metadata(@user.address),
       commentAllowed: MAX_COMMENT_CHARS
     }
+
+    if Setting.nostr_enabled?
+      res[:allowsNostr] = true
+      res[:nostrPubkey] = Setting.nostr_public_key
+    end
+
+    render json: res
   end
 
+  # GET /.well-known/keysend/:username
   def keysend
     http_status :not_found and return unless Setting.lndhub_keysend_enabled?
 
@@ -32,8 +42,9 @@ class LnurlpayController < ApplicationController
     }
   end
 
+  # GET /lnurlpay/:username/invoice
   def invoice
-    amount = params[:amount].to_i / 1000 # msats
+    amount = params[:amount].to_i / 1000 # msats to sats
     comment = params[:comment] || ""
     address = @user.address
 
@@ -42,53 +53,109 @@ class LnurlpayController < ApplicationController
       return
     end
 
-    if !valid_comment?(comment)
+    if params[:nostr].present? && Setting.nostr_enabled?
-      render json: { status: "ERROR", reason: "Comment too long" }
+      handle_zap_request amount, params[:nostr], params[:lnurl]
-      return
+    else
+      handle_pay_request address, amount, comment
+    end
+  end
+
+  private
+
+    def set_cors_access_control_headers
+      headers['Access-Control-Allow-Origin'] = "*"
+      headers['Access-Control-Allow-Headers'] = "*"
+      headers['Access-Control-Allow-Methods'] = "GET"
     end
 
-    memo = "To #{address}"
+    def check_service_available
-    memo = "#{memo}: \"#{comment}\"" if comment.present?
+      http_status :not_found unless Setting.lndhub_enabled?
+    end
 
-    payment_request = @user.ln_create_invoice({
+    def find_user
-      amount: amount, # we create invoices in sats
+      @user = User.where(cn: params[:username], ou: Setting.primary_domain).first
-      memo: memo,
+      http_status :not_found if @user.nil?
-      description_hash: Digest::SHA2.hexdigest(metadata(address)),
+    end
-    })
 
-    render json: {
+    def metadata(address)
-      status: "OK",
+      "[[\"text/identifier\",\"#{address}\"],[\"text/plain\",\"Sats for #{address}\"]]"
-      successAction: {
+    end
-        tag: "message",
-        message: "Sats received. Thank you!"
-      },
-      routes: [],
-      pr: payment_request
-    }
-  end
 
-  private
+    def valid_amount?(amount_in_sats)
+      amount_in_sats <= MAX_SATS && amount_in_sats >= MIN_SATS
+    end
 
-  def find_user
+    def valid_comment?(comment)
-    @user = User.where(cn: params[:username], ou: Setting.primary_domain).first
+      comment.length <= MAX_COMMENT_CHARS
-    http_status :not_found if @user.nil?
+    end
-  end
 
-  def metadata(address)
+    def handle_pay_request(address, amount, comment)
-    "[[\"text/identifier\", \"#{address}\"], [\"text/plain\", \"Send sats, receive thanks.\"]]"
+      if !valid_comment?(comment)
-  end
+        render json: { status: "ERROR", reason: "Comment too long" }
+        return
+      end
 
-  def valid_amount?(amount_in_sats)
+      desc = "To #{address}"
-    amount_in_sats <= MAX_SATS && amount_in_sats >= MIN_SATS
+      desc = "#{desc}: \"#{comment}\"" if comment.present?
-  end
 
-  def valid_comment?(comment)
+      invoice = LndhubManager::CreateUserInvoice.call(
-    comment.length <= MAX_COMMENT_CHARS
+        user: @user, payload: {
-  end
+          amount: amount, # sats
+          description: desc,
+          description_hash: Digest::SHA256.hexdigest(metadata(address)),
+        }
+      )
 
-  private
+      render json: {
+        status: "OK",
+        successAction: {
+          tag: "message",
+          message: "Sats received. Thank you!"
+        },
+        routes: [],
+        pr: invoice["payment_request"]
+      }
+    end
 
-  def check_service_available
+    def nostr_event_from_payload(nostr_param)
-    http_status :not_found unless Setting.lndhub_enabled?
+      event_obj = JSON.parse(nostr_param).transform_keys(&:to_sym)
-  end
+      Nostr::Event.new(**event_obj)
+    rescue => e
+      return nil
+    end
+
+    def valid_zap_request?(amount, event, lnurl)
+      NostrManager::VerifyZapRequest.call(
+        amount: amount, event: event, lnurl: lnurl
+      )
+    end
+
+    def handle_zap_request(amount, nostr_param, lnurl_param)
+      event = nostr_event_from_payload(nostr_param)
+
+      unless event.present? && valid_zap_request?(amount*1000, event, lnurl_param)
+        render json: { status: "ERROR", reason: "Invalid zap request" }
+        return
+      end
+
+      # TODO might want to use the existing invoice and zap record if there are
+      # multiple calls with the same zap request
+
+      desc = "Zap for #{@user.address}"
+      desc = "#{desc}: \"#{event.content}\"" if event.content.present?
+
+      invoice = LndhubManager::CreateUserInvoice.call(
+        user: @user, payload: {
+          amount: amount, # sats
+          description: desc,
+          description_hash: Digest::SHA256.hexdigest(event.to_json),
+        }
+      )
+
+      @user.zaps.create! request: event,
+                         payment_request: invoice["payment_request"],
+                         amount: amount
+
+      render json: { status: "OK", pr: invoice["payment_request"] }
+    end
 end

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.services_enabled.include?(:xmpp)
+    @service_enabled = current_user.service_enabled?(:xmpp)
   end
 
   private

app/controllers/services/lightning_controller.rb

@@ -2,10 +2,11 @@ require "rqrcode"
 require "lnurl"
 
 class Services::LightningController < ApplicationController
-  before_action :authenticate_user!
-  before_action :authenticate_with_lndhub
   before_action :set_current_section
-  before_action :fetch_balance
+  before_action :require_service_available
+  before_action :authenticate_user!
+  before_action :lndhub_authenticate
+  before_action :lndhub_fetch_balance
 
   def index
     @wallet_setup_url = "lndhub://#{current_user.ln_account}:#{current_user.ln_password}@#{ENV['LNDHUB_PUBLIC_URL']}"
@@ -55,32 +56,12 @@ class Services::LightningController < ApplicationController
 
   private
 
-  def authenticate_with_lndhub(options={})
-    if session[:ln_auth_token].present? && !options[:force_reauth]
-      @ln_auth_token = session[:ln_auth_token]
-    else
-      lndhub = Lndhub.new
-      auth_token = lndhub.authenticate(current_user)
-      session[:ln_auth_token] = auth_token
-      @ln_auth_token = auth_token
-    end
-  rescue => e
-    Sentry.capture_exception(e) if Setting.sentry_enabled?
-  end
-
   def set_current_section
     @current_section = :services
   end
 
-  def fetch_balance
+  def require_service_available
-    lndhub = Lndhub.new
+    http_status :not_found unless Setting.lndhub_enabled?
-    data = lndhub.balance @ln_auth_token
-    @balance = data["BTC"]["AvailableBalance"] rescue nil
-  rescue AuthError
-    authenticate_with_lndhub(force_reauth: true)
-    raise if @fetch_balance_retried
-    @fetch_balance_retried = true
-    fetch_balance
   end
 
   def fetch_transactions

app/controllers/services/mastodon_controller.rb

@@ -3,7 +3,7 @@ class Services::MastodonController < Services::BaseController
   before_action :require_service_available
 
   def show
-    @service_enabled = current_user.services_enabled.include?(:mastodon)
+    @service_enabled = current_user.service_enabled?(:mastodon)
   end
 
   private

app/controllers/services/remotestorage_controller.rb

@@ -5,7 +5,7 @@ class Services::RemotestorageController < Services::BaseController
 
   # Dashboard
   def show
-    # unless current_user.services_enabled.include?(:remotestorage)
+    # unless current_user.service_enabled?(:remotestorage)
     #   redirect_to service_remotestorage_info_path
     # end
     @rs_auths = current_user.remote_storage_authorizations

app/controllers/settings_controller.rb

@@ -12,7 +12,11 @@ class SettingsController < ApplicationController
   end
 
   def show
-    if @settings_section == "experiments"
+    case @settings_section
+    when "lightning"
+      @notifications_enabled = @user.preferences[:lightning_notify_sats_received] != "disabled" ||
+                               @user.preferences[:lightning_notify_zap_received] != "disabled"
+    when "nostr"
       session[:shared_secret] ||= SecureRandom.base64(12)
     end
   end
@@ -87,40 +91,39 @@ class SettingsController < ApplicationController
   end
 
   def set_nostr_pubkey
-    signed_event = nostr_event_params[:signed_event].to_h.symbolize_keys
+    signed_event = Nostr::Event.new(**nostr_event_from_params)
-    is_valid_id  = NostrManager::ValidateId.call(event: signed_event)
-    is_valid_sig = NostrManager::VerifySignature.call(event: signed_event)
-    is_correct_content = signed_event[:content] == "Connect my public key to #{current_user.address} (confirmation #{session[:shared_secret]})"
 
-    unless is_valid_id && is_valid_sig && is_correct_content
+    is_valid_sig  = signed_event.verify_signature
+    is_valid_auth = NostrManager::VerifyAuth.call(
+      event: signed_event,
+      challenge: session[:shared_secret]
+    )
+
+    unless is_valid_sig && is_valid_auth
       flash[:alert] = "Public key could not be verified"
       http_status :unprocessable_entity and return
     end
 
-    pubkey_taken = User.all_except(current_user).where(
+    user_with_pubkey = LdapManager::FetchUserByNostrKey.call(pubkey: signed_event.pubkey)
-      ou: current_user.ou, nostr_pubkey: signed_event[:pubkey]
-    ).any?
 
-    if pubkey_taken
+    if user_with_pubkey.present? && (user_with_pubkey != current_user)
       flash[:alert] = "Public key already in use for a different account"
       http_status :unprocessable_entity and return
     end
 
-    current_user.update! nostr_pubkey: signed_event[:pubkey]
+    LdapManager::UpdateNostrKey.call(dn: current_user.dn, pubkey: signed_event.pubkey)
     session[:shared_secret] = nil
 
     flash[:success] = "Public key verification successful"
     http_status :ok
-  rescue
-    flash[:alert] = "Public key could not be verified"
-    http_status :unprocessable_entity and return
   end
 
   # DELETE /settings/nostr_pubkey
   def remove_nostr_pubkey
-    current_user.update! nostr_pubkey: nil
+    # TODO require current pubkey or password to delete
+    LdapManager::UpdateNostrKey.call(dn: current_user.dn, pubkey: nil)
 
-    redirect_to setting_path(:experiments), flash: {
+    redirect_to setting_path(:nostr), flash: {
       success: 'Public key removed from account'
     }
   end
@@ -134,8 +137,8 @@ class SettingsController < ApplicationController
     def set_settings_section
       @settings_section = params[:section]
       allowed_sections = [
-        :profile, :account, :xmpp, :email, :lightning, :remotestorage,
+        :profile, :account, :xmpp, :email,
-        :experiments
+        :lightning, :remotestorage, :nostr
       ]
 
       unless allowed_sections.include?(@settings_section.to_sym)
@@ -148,11 +151,9 @@ class SettingsController < ApplicationController
     end
 
     def user_params
-      params.require(:user).permit(:display_name, :avatar, preferences: [
+      params.require(:user).permit(
-        :lightning_notify_sats_received,
+        :display_name, :avatar, preferences: UserPreferences.pref_keys
-        :remotestorage_notify_auth_created,
+      )
-        :xmpp_exchange_contacts_with_invitees
-      ])
     end
 
     def email_params
@@ -163,12 +164,6 @@ class SettingsController < ApplicationController
       params.require(:user).permit(:current_password)
     end
 
-    def nostr_event_params
-      params.permit(signed_event: [
-        :id, :pubkey, :created_at, :kind, :tags, :content, :sig
-      ])
-    end
-
     def generate_email_password
       characters = [('a'..'z'), ('A'..'Z'), (0..9)].map(&:to_a).flatten
       SecureRandom.random_bytes(16).each_byte.map { |b| characters[b % characters.length] }.join

app/controllers/users/sessions_controller.rb

@@ -0,0 +1,62 @@
+# frozen_string_literal: true
+
+class Users::SessionsController < Devise::SessionsController
+  # before_action :configure_sign_in_params, only: [:create]
+
+  # GET /resource/sign_in
+  def new
+    session[:shared_secret] = SecureRandom.base64(12)
+    super
+  end
+
+  # POST /resource/sign_in
+  # def create
+  #   super
+  # end
+
+  # DELETE /resource/sign_out
+  # def destroy
+  #   super
+  # end
+
+  # POST /users/nostr_login
+  def nostr_login
+    signed_event = Nostr::Event.new(**nostr_event_from_params)
+
+    is_valid_sig  = signed_event.verify_signature
+    is_valid_auth = NostrManager::VerifyAuth.call(
+      event: signed_event,
+      challenge: session[:shared_secret]
+    )
+
+    session[:shared_secret] = nil
+
+    unless is_valid_sig && is_valid_auth
+      flash[:alert] = "Login verification failed"
+      http_status :unauthorized and return
+    end
+
+    user = LdapManager::FetchUserByNostrKey.call(pubkey: signed_event.pubkey)
+
+    if user.present?
+      set_flash_message!(:notice, :signed_in)
+      sign_in("user", user)
+      render json: { redirect_url: after_sign_in_path_for(user) }, status: :ok
+    else
+      flash[:alert] = "Failed to find your account. Nostr login may be disabled."
+      http_status :unauthorized
+    end
+  end
+
+  protected
+
+    def set_flash_message(key, kind, options = {})
+      # Hide flash message after redirecting from a signin route while logged in
+      super unless key == :alert && kind == "already_authenticated"
+    end
+
+  # If you have extra params to permit, append them to the sanitizer.
+  # def configure_sign_in_params
+  #   devise_parameter_sanitizer.permit(:sign_in, keys: [:attribute])
+  # end
+end

app/controllers/webfinger_controller.rb

@@ -7,14 +7,15 @@ class WebfingerController < ApplicationController
     resource = params[:resource]
 
     if resource && @useraddress = resource.match(/acct:(.+)/)&.[](1)
-      @username, @org = @useraddress.split("@")
+      @username, @domain = @useraddress.split("@")
 
       unless Rails.env.development?
         # Allow different domains (e.g. localhost:3000) in development only
-        head 404 and return unless @org == Setting.primary_domain
+        head 404 and return unless @domain == Setting.primary_domain
       end
 
-      unless User.where(cn: @username.downcase, ou: Setting.primary_domain).any?
+      unless @user = User.where(ou: Setting.primary_domain)
+                         .find_by(cn: @username.downcase)
         head 404 and return
       end
 
@@ -28,12 +29,50 @@ class WebfingerController < ApplicationController
   private
 
   def webfinger
-    links = [];
+    jrd = {
+      subject: "acct:#{@user.address}",
+      aliases: [],
+      links: []
+    }
 
-    # TODO check if storage service is enabled for user, not just globally
+    if Setting.mastodon_enabled && @user.service_enabled?(:mastodon)
-    links << remotestorage_link if Setting.remotestorage_enabled
+      # https://docs.joinmastodon.org/spec/webfinger/
+      jrd[:aliases] += mastodon_aliases
+      jrd[:links] += mastodon_links
+    end
 
-    { "links" => links }
+    if Setting.remotestorage_enabled && @user.service_enabled?(:remotestorage)
+      # https://datatracker.ietf.org/doc/draft-dejong-remotestorage/
+      jrd[:links] << remotestorage_link
+    end
+
+    jrd
+  end
+
+  def mastodon_aliases
+    [
+      "#{Setting.mastodon_public_url}/@#{@user.cn}",
+      "#{Setting.mastodon_public_url}/users/#{@user.cn}"
+    ]
+  end
+
+  def mastodon_links
+    [
+      {
+        rel: "http://webfinger.net/rel/profile-page",
+        type: "text/html",
+        href: "#{Setting.mastodon_public_url}/@#{@user.cn}"
+      },
+      {
+        rel: "self",
+        type: "application/activity+json",
+        href: "#{Setting.mastodon_public_url}/users/#{@user.cn}"
+      },
+      {
+        rel: "http://ostatus.org/schema/1.0/subscribe",
+        template: "#{Setting.mastodon_public_url}/authorize_interaction?uri={uri}"
+      }
+    ]
   end
 
   def remotestorage_link
@@ -41,9 +80,9 @@ class WebfingerController < ApplicationController
     storage_url = "#{Setting.rs_storage_url}/#{@username}"
 
     {
-      "rel" => "http://tools.ietf.org/id/draft-dejong-remotestorage",
+      rel: "http://tools.ietf.org/id/draft-dejong-remotestorage",
-      "href" => storage_url,
+      href: storage_url,
-      "properties" => {
+      properties: {
         "http://remotestorage.io/spec/version" => "draft-dejong-remotestorage-13",
         "http://tools.ietf.org/html/rfc6749#section-4.2" => auth_url,
         "http://tools.ietf.org/html/rfc6750#section-2.3" => nil, # access token via a HTTP query parameter

app/controllers/webhooks_controller.rb

@@ -2,45 +2,76 @@ class WebhooksController < ApplicationController
   skip_forgery_protection
 
   before_action :authorize_request
+  before_action :process_payload
 
   def lndhub
-    begin
+    @user = User.find_by!(ln_account: @payload[:user_login])
-      payload = JSON.parse(request.body.read, symbolize_names: true)
+
-      head :no_content and return unless payload[:type] == "incoming"
+    if @zap = @user.zaps.find_by(payment_request: @payload[:payment_request])
-    rescue
+      settled_at = Time.parse(@payload[:settled_at])
-      head :unprocessable_entity and return
+      zap_receipt = NostrManager::CreateZapReceipt.call(
+        zap: @zap,
+        paid_at: settled_at.to_i,
+        preimage: @payload[:preimage]
+      )
+      @zap.update! settled_at: settled_at, receipt: zap_receipt.to_h
+      NostrManager::PublishZapReceipt.call(zap: @zap)
     end
 
-    user = User.find_by!(ln_account: payload[:user_login])
+    send_notifications
-    notify = user.preferences[:lightning_notify_sats_received]
-    case notify
-    when "xmpp"
-      notify_xmpp(user.address, payload[:amount], payload[:memo])
-    when "email"
-      NotificationMailer.with(user: user, amount_sats: payload[:amount])
-                        .lightning_sats_received.deliver_later
-    end
 
     head :ok
   end
 
   private
 
-  # TODO refactor into mailer-like generic class/service
-  def notify_xmpp(address, amt_sats, memo)
-    payload = {
-      type: "normal",
-      from: Setting.xmpp_notifications_from_address,
-      to: address,
-      subject: "Sats received!",
-      body: "#{helpers.number_with_delimiter amt_sats} sats received in your Lightning wallet:\n> #{memo}"
-    }
-    XmppSendMessageJob.perform_later(payload)
-  end
-
   def authorize_request
     if !ENV['WEBHOOKS_ALLOWED_IPS'].split(',').include?(request.remote_ip)
       head :forbidden and return
     end
   end
+
+  def process_payload
+    @payload = JSON.parse(request.body.read, symbolize_names: true)
+    unless @payload[:type] == "incoming" &&
+           @payload[:state] == "settled"
+      head :no_content and return
+    end
+  rescue
+    head :unprocessable_entity and return
+  end
+
+  def send_notifications
+    return if @payload[:amount] < @user.preferences[:lightning_notify_min_sats]
+
+    if @user.preferences[:lightning_notify_only_with_message]
+      return if @payload[:memo].blank?
+    end
+
+    target = @zap.present? ? @user.preferences[:lightning_notify_zap_received] :
+                             @user.preferences[:lightning_notify_sats_received]
+
+    case target
+    when "xmpp"
+      notify_xmpp
+    when "email"
+      notify_email
+    end
+  end
+
+  # TODO refactor into mailer-like generic class/service
+  def notify_xmpp
+    XmppSendMessageJob.perform_later({
+      type: "normal",
+      from: Setting.xmpp_notifications_from_address,
+      to: @user.address,
+      subject: "Sats received!",
+      body: "#{helpers.number_with_delimiter @payload[:amount]} sats received in your Lightning wallet:\n> #{@payload[:memo]}"
+    })
+  end
+
+  def notify_email
+    NotificationMailer.with(user: @user, amount_sats: @payload[:amount])
+                      .lightning_sats_received.deliver_later
+  end
 end

app/controllers/well_known_controller.rb

@@ -1,16 +1,33 @@
 class WellKnownController < ApplicationController
+  before_action :require_nostr_enabled, only: [ :nostr ]
+
   def nostr
     http_status :unprocessable_entity and return if params[:name].blank?
     domain = request.headers["X-Forwarded-Host"].presence || Setting.primary_domain
-    @user = User.where(cn: params[:name], ou: domain).first
+    relay_url = Setting.nostr_relay_url
-    http_status :not_found and return if @user.nil? || @user.nostr_pubkey.blank?
+
+    if params[:name] == "_"
+      # pubkey for the primary domain without a username (e.g. kosmos.org)
+      res = { names: { "_": Setting.nostr_public_key } }
+      res[:relays] = { "_" => [ relay_url ] } if relay_url
+    else
+      @user = User.where(cn: params[:name], ou: domain).first
+      http_status :not_found and return if @user.nil? || @user.nostr_pubkey.blank?
+
+      res = { names: { @user.cn => @user.nostr_pubkey } }
+      res[:relays] = { @user.nostr_pubkey => [ relay_url ] } if relay_url
+    end
 
     respond_to do |format|
       format.json do
-        render json: {
+        render json: res.to_json
-          names: { "#{@user.cn}": @user.nostr_pubkey }
-        }.to_json
       end
     end
   end
+
+  private
+
+    def require_nostr_enabled
+      http_status :not_found unless Setting.nostr_enabled?
+    end
 end

app/helpers/application_helper.rb

@@ -1,10 +1,6 @@
 module ApplicationHelper
   include Pagy::Frontend
 
-  def sats_to_btc(sats)
-    sats.to_f / 100000000
-  end
-
   def main_nav_class(current_section, link_to_section)
     if current_section == link_to_section
       "bg-gray-900/50 text-white px-3 py-2 rounded-md font-medium text-base md:text-sm block md:inline-block"

app/helpers/btcpay_helper.rb

@@ -0,0 +1,7 @@
+module BtcpayHelper
+
+  def btcpay_checkout_url(invoice_id)
+    "#{Setting.btcpay_public_url}/i/#{invoice_id}"
+  end
+
+end

app/javascript/controllers/nostr_login_controller.js

@@ -0,0 +1,53 @@
+import { Controller } from "@hotwired/stimulus"
+
+// Connects to data-controller="nostr-login"
+export default class extends Controller {
+  static targets = [ "loginForm", "loginButton" ]
+  static values  = { site: String, sharedSecret: String }
+
+  connect() {
+    if (window.nostr) {
+      this.loginButtonTarget.disabled = false
+      this.loginFormTarget.classList.remove("hidden")
+    }
+  }
+
+  async login () {
+    this.loginButtonTarget.disabled = true
+
+    try {
+      // Auth based on NIP-42
+      const signedEvent = await window.nostr.signEvent({
+        created_at: Math.floor(Date.now() / 1000),
+        kind: 22242,
+        tags: [
+          ["site", this.siteValue],
+          ["challenge", this.sharedSecretValue]
+        ],
+        content: ""
+      })
+
+      const res = await fetch("/users/nostr_login", {
+        method: "POST", credentials: "include", headers: {
+          "Accept": "application/json", 'Content-Type': 'application/json',
+          "X-CSRF-Token": this.csrfToken
+        }, body: JSON.stringify({ signed_event: signedEvent })
+      })
+
+      if (res.status === 200) {
+        res.json().then(r => { window.location.href = r.redirect_url })
+      } else {
+        window.location.reload()
+      }
+    } catch (error) {
+      console.warn('Unable to authenticate:', error.message)
+    } finally {
+      this.loginButtonTarget.disabled = false
+    }
+  }
+
+  get csrfToken () {
+    const element = document.head.querySelector('meta[name="csrf-token"]')
+    return element.getAttribute("content")
+  }
+}

app/javascript/controllers/settings/nostr_pubkey_controller.js

@@ -3,7 +3,12 @@ import { Controller } from "@hotwired/stimulus"
 // Connects to data-controller="settings--nostr-pubkey"
 export default class extends Controller {
   static targets = [ "noExtension", "setPubkey", "pubkeyBech32Input" ]
-  static values  = { userAddress: String, pubkeyHex: String, sharedSecret: String }
+  static values  = {
+    userAddress: String,
+    pubkeyHex: String,
+    site: String,
+    sharedSecret: String
+  }
 
   connect () {
     if (window.nostr) {
@@ -19,11 +24,15 @@ export default class extends Controller {
     this.setPubkeyTarget.disabled = true
 
     try {
+      // Auth based on NIP-42
       const signedEvent = await window.nostr.signEvent({
         created_at: Math.floor(Date.now() / 1000),
-        kind: 1,
+        kind: 22242,
-        tags: [],
+        tags: [
-        content: `Connect my public key to ${this.userAddressValue} (confirmation ${this.sharedSecretValue})`
+          ["site", this.siteValue],
+          ["challenge", this.sharedSecretValue]
+        ],
+        content: ""
       })
 
       const res = await fetch("/settings/set_nostr_pubkey", {

app/jobs/btcpay_check_donation_job.rb

@@ -0,0 +1,28 @@
+class BtcpayCheckDonationJob < ApplicationJob
+  queue_as :default
+
+  def perform(donation)
+    return if donation.completed?
+
+    invoice = BtcpayManager::FetchInvoice.call(
+      invoice_id: donation.btcpay_invoice_id
+    )
+
+    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)
+    end
+  end
+
+  def re_enqueue_job(donation)
+    self.class.set(wait: 20.seconds).perform_later(donation)
+  end
+end

app/jobs/create_ldap_user_job.rb

@@ -1,7 +1,7 @@
 class CreateLdapUserJob < ApplicationJob
   queue_as :default
 
-  def perform(username, domain, email, hashed_pw)
+  def perform(username:, domain:, email:, hashed_pw:, confirmed: false)
     dn = "cn=#{username},ou=#{domain},cn=users,dc=kosmos,dc=org"
     attr = {
       objectclass: ["top", "account", "person", "extensibleObject"],
@@ -12,6 +12,10 @@ class CreateLdapUserJob < ApplicationJob
       userPassword: hashed_pw
     }
 
+    if confirmed
+      attr[:serviceEnabled] = Setting.default_services
+    end
+
     ldap_client.add(dn: dn, attributes: attr)
   end
 

app/jobs/nostr_publish_event_job.rb

@@ -0,0 +1,7 @@
+class NostrPublishEventJob < ApplicationJob
+  queue_as :nostr
+
+  def perform(event:, relay_url:)
+    NostrManager::PublishEvent.call(event: event, relay_url: relay_url)
+  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.services_enabled.include?("xmpp") &&
+    return unless inviter.service_enabled?(:xmpp) &&
-                  invitee.services_enabled.include?("xmpp") &&
+                  invitee.service_enabled?(:xmpp) &&
                   inviter.preferences[:xmpp_exchange_contacts_with_invitees]
 
     ejabberd = EjabberdApiClient.new

app/mailers/notification_mailer.rb

@@ -23,4 +23,11 @@ class NotificationMailer < ApplicationMailer
     @subject = "New invitations added to your account"
     mail to: @user.email, subject: @subject
   end
+
+  def bitcoin_donation_confirmed
+    @user = params[:user]
+    @donation = params[:donation]
+    @subject = "Donation confirmed"
+    mail to: @user.email, subject: @subject
+  end
 end

app/models/donation.rb

@@ -4,12 +4,25 @@ class Donation < ApplicationRecord
 
   # Validations
   validates_presence_of :user
-  validates_presence_of :amount_sats
+  validates_presence_of :donation_method,
-  validates_presence_of :paid_at
+    inclusion: { in: %w[ custom btcpay lndhub ] }
-
+  validates_presence_of :payment_status, allow_nil: true,
-  # Hooks
+    inclusion: { in: %w[ processing settled ] }
-  # TODO before_create :store_fiat_value
+  validates_presence_of :paid_at, allow_nil: true
+  validates_presence_of :amount_sats, allow_nil: true
+  validates_presence_of :fiat_amount, allow_nil: true
+  validates_presence_of :fiat_currency, allow_nil: true,
+    inclusion: { in: %w[ EUR USD ] }
 
   #Scopes
-  scope :completed, -> { where.not(paid_at: nil) }
+  scope :processing, -> { where(payment_status: "processing") }
+  scope :completed, -> { where(payment_status: "settled") }
+
+  def processing?
+    payment_status == "processing"
+  end
+
+  def completed?
+    payment_status == "settled"
+  end
 end

app/models/setting.rb

@@ -51,6 +51,9 @@ class Setting < RailsSettings::Base
   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
 
@@ -157,7 +160,26 @@ class Setting < RailsSettings::Base
   # Nostr
   #
 
-  field :nostr_enabled, type: :boolean, default: true
+  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
@@ -197,4 +219,9 @@ class Setting < RailsSettings::Base
   #
   # 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 ]
+  end
 end

app/models/user.rb

@@ -17,16 +17,15 @@ class User < ApplicationRecord
   has_one  :invitation, inverse_of: :invitee, foreign_key: 'invited_user_id'
   has_one  :inviter, through: :invitation, source: :user
   has_many :invitees, through: :invitations
-
   has_many :donations, dependent: :nullify
+  has_many :remote_storage_authorizations
+  has_many :zaps
 
   has_one  :lndhub_user, class_name: "LndhubUser", inverse_of: "user",
                          primary_key: "ln_account", foreign_key: "login"
 
   has_many :accounts, through: :lndhub_user
 
-  has_many :remote_storage_authorizations
-
   #
   # Validations
   #
@@ -50,8 +49,6 @@ class User < ApplicationRecord
   validates_length_of :display_name, minimum: 3, maximum: 35, allow_blank: true,
                                      if: -> { defined?(@display_name) }
 
-  validates_uniqueness_of :nostr_pubkey, allow_blank: true
-
   validate :acceptable_avatar
 
   #
@@ -95,9 +92,7 @@ class User < ApplicationRecord
       LdapManager::UpdateEmail.call(dn: self.dn, address: self.email)
     else
       # E-Mail from signup confirmed (i.e. account activation)
-
+      enable_default_services
-      # TODO Make configurable, only activate globally enabled services
-      enable_service %w[ discourse gitea mediawiki xmpp ]
 
       # TODO enable in development when we have easy setup of ejabberd etc.
       return if Rails.env.development? || !Setting.ejabberd_enabled?
@@ -135,7 +130,7 @@ class User < ApplicationRecord
 
   def mastodon_address
     return nil unless Setting.mastodon_enabled?
-    "#{self.cn}@#{Setting.mastodon_address_domain}"
+    "#{self.cn.gsub("-", "_")}@#{Setting.mastodon_address_domain}"
   end
 
   def valid_attribute?(attribute_name)
@@ -143,10 +138,8 @@ class User < ApplicationRecord
     self.errors[attribute_name].blank?
   end
 
-  def ln_create_invoice(payload)
+  def enable_default_services
-    lndhub = Lndhub.new
+    enable_service Setting.default_services
-    lndhub.authenticate self
-    lndhub.addinvoice payload
   end
 
   def dn
@@ -163,37 +156,45 @@ class User < ApplicationRecord
     @display_name ||= ldap_entry[:display_name]
   end
 
+  def nostr_pubkey
+    @nostr_pubkey ||= ldap_entry[:nostr_key]
+  end
+
+  def nostr_pubkey_bech32
+    return nil unless nostr_pubkey.present?
+    Nostr::PublicKey.new(nostr_pubkey).to_bech32
+  end
+
   def avatar
     @avatar_base64 ||= LdapManager::FetchAvatar.call(cn: cn)
   end
 
   def services_enabled
-    ldap_entry[:service] || []
+    ldap_entry[:services_enabled] || []
+  end
+
+  def service_enabled?(name)
+    services_enabled.map(&:to_sym).include?(name.to_sym)
   end
 
   def enable_service(service)
     current_services = services_enabled
     new_services = Array(service).map(&:to_s)
     services = (current_services + new_services).uniq
-    ldap.replace_attribute(dn, :service, services)
+    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
-    ldap.replace_attribute(dn, :service, services)
+    ldap.replace_attribute(dn, :serviceEnabled, services)
   end
 
   def disable_all_services
     ldap.delete_attribute(dn,:service)
   end
 
-  def nostr_pubkey_bech32
-    return nil unless nostr_pubkey.present?
-    Nostr::PublicKey.new(nostr_pubkey).to_bech32
-  end
-
   private
 
     def ldap

app/models/user_preferences.rb

@@ -26,4 +26,8 @@ class UserPreferences
     end
     hash.stringify_keys!.to_h
   end
+
+  def self.pref_keys
+    DEFAULT_PREFS.keys.map(&:to_sym)
+  end
 end

app/models/zap.rb

@@ -0,0 +1,20 @@
+class Zap < ApplicationRecord
+  belongs_to :user
+
+  scope :settled, -> { where.not(settled_at: nil) }
+  scope :unpaid, -> { where(settled_at: nil) }
+
+  def request_event
+    nostr_event_from_hash(request)
+  end
+
+  def receipt_event
+    nostr_event_from_hash(receipt)
+  end
+
+  private
+
+    def nostr_event_from_hash(hash)
+      Nostr::Event.new(**hash.symbolize_keys)
+    end
+end

app/services/btcpay_manager/create_invoice.rb

@@ -0,0 +1,21 @@
+module BtcpayManager
+  class CreateInvoice < BtcpayManagerService
+    def initialize(amount:, currency:, redirect_url:)
+      @amount = amount
+      @currency = currency
+      @redirect_url = redirect_url
+    end
+
+    def call
+      post "/invoices", {
+        amount: @amount.to_s,
+        currency: @currency,
+        checkout: {
+          redirectURL: @redirect_url,
+          redirectAutomatically: true,
+          requiresRefundEmail: false
+        }
+      }
+    end
+  end
+end

app/services/btcpay_manager/fetch_exchange_rate.rb

@@ -0,0 +1,14 @@
+module BtcpayManager
+  class FetchExchangeRate < BtcpayManagerService
+    def initialize(fiat_currency:)
+      @fiat_currency = fiat_currency
+    end
+
+    def call
+      pair_str = "BTC_#{@fiat_currency}"
+      res = get "rates", { currencyPair: pair_str }
+      pair = res.find{|p| p["currencyPair"] == pair_str }
+      rate = pair["rate"].to_f
+    end
+  end
+end

app/services/btcpay_manager/fetch_invoice.rb

@@ -0,0 +1,14 @@
+module BtcpayManager
+  class FetchInvoice < BtcpayManagerService
+    def initialize(invoice_id:)
+      @invoice_id = invoice_id
+    end
+
+    def call
+      invoice = get "/invoices/#{@invoice_id}"
+      payment_methods = get "/invoices/#{@invoice_id}/payment-methods"
+      invoice["paymentMethods"] = payment_methods
+      invoice
+    end
+  end
+end

app/services/btcpay_manager/fetch_lightning_wallet_balance.rb

@@ -1,7 +1,7 @@
 module BtcpayManager
   class FetchLightningWalletBalance < BtcpayManagerService
     def call
-      res = get "stores/#{store_id}/lightning/BTC/balance"
+      res = get "/lightning/BTC/balance"
 
       {
         confirmed_balance: res["offchain"]["local"].to_i / 1000 # msats to sats

app/services/btcpay_manager/fetch_onchain_wallet_balance.rb

@@ -1,7 +1,7 @@
 module BtcpayManager
   class FetchOnchainWalletBalance < BtcpayManagerService
     def call
-      res = get "stores/#{store_id}/payment-methods/onchain/BTC/wallet"
+      res = get "/payment-methods/onchain/BTC/wallet"
 
       {
         balance: (res["balance"].to_f * 100000000).to_i, # BTC to sats

app/services/btcpay_manager_service.rb

@@ -2,23 +2,35 @@
 # API Docs: https://docs.btcpayserver.org/API/Greenfield/v1/
 #
 class BtcpayManagerService < ApplicationService
-  attr_reader :base_url, :store_id, :auth_token
-
-  def initialize
-    @base_url   = Setting.btcpay_api_url
-    @store_id   = Setting.btcpay_store_id
-    @auth_token = Setting.btcpay_auth_token
-  end
-
   private
 
-    def get(endpoint)
+    def base_url
-      res = Faraday.get("#{base_url}/#{endpoint}", {}, {
+      @base_url ||= "#{Setting.btcpay_api_url}/stores/#{Setting.btcpay_store_id}"
+    end
+
+    def auth_token
+      @auth_token ||= Setting.btcpay_auth_token
+    end
+
+    def headers
+      {
         "Content-Type" => "application/json",
         "Accept" => "application/json",
         "Authorization" => "token #{auth_token}"
-      })
+      }
+    end
 
+    def endpoint_url(path)
+      "#{base_url}/#{path.gsub(/^\//, '')}"
+    end
+
+    def get(path, params = {})
+      res = Faraday.get endpoint_url(path), params, headers
+      JSON.parse(res.body)
+    end
+
+    def post(path, payload)
+      res = Faraday.post endpoint_url(path), payload.to_json, headers
       JSON.parse(res.body)
     end
 end

app/services/create_account.rb

@@ -35,11 +35,15 @@ class CreateAccount < ApplicationService
     @invitation.update! invited_user_id: user_id, used_at: DateTime.now
   end
 
-  # TODO move to confirmation
-  # (and/or add email_confirmed to entry and use in login filter)
   def add_ldap_document
     hashed_pw = Devise.ldap_auth_password_builder.call(@password)
-    CreateLdapUserJob.perform_later(@username, @domain, @email, hashed_pw)
+    CreateLdapUserJob.perform_later(
+      username: @username,
+      domain: @domain,
+      email: @email,
+      hashed_pw: hashed_pw,
+      confirmed: @confirmed
+    )
   end
 
   def create_lndhub_account(user)

app/services/ldap_manager/fetch_avatar.rb

@@ -9,7 +9,7 @@ module LdapManager
       attributes = %w{ jpegPhoto }
       filter     = Net::LDAP::Filter.eq("cn", @cn)
 
-      entry = ldap_client.search(base: treebase, filter: filter, attributes: attributes).first
+      entry = client.search(base: treebase, filter: filter, attributes: attributes).first
       entry.try(:jpegPhoto) ? entry.jpegPhoto.first : nil
     end
   end

app/services/ldap_manager/fetch_user_by_nostr_key.rb

@@ -0,0 +1,18 @@
+module LdapManager
+  class FetchUserByNostrKey < LdapManagerService
+    def initialize(pubkey:)
+      @ou = Setting.primary_domain
+      @pubkey = pubkey
+    end
+
+    def call
+      treebase   = "ou=#{@ou},cn=users,#{ldap_suffix}"
+      attributes = %w{ cn }
+      filter     = Net::LDAP::Filter.eq("nostrKey", @pubkey)
+
+      entry = client.search(base: treebase, filter: filter, attributes: attributes).first
+
+      User.find_by cn: entry.cn, ou: @ou  unless entry.nil?
+    end
+  end
+end

app/services/ldap_manager/update_nostr_key.rb

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

app/services/ldap_manager_service.rb

@@ -1,5 +1,2 @@
 class LdapManagerService < LdapService
-  def suffix
-    @suffix ||= ENV["LDAP_SUFFIX"] || "dc=kosmos,dc=org"
-  end
 end

app/services/ldap_service.rb

@@ -1,41 +1,47 @@
 class LdapService < ApplicationService
-  def initialize
+  def modify(dn, operations=[])
-    @suffix = ENV["LDAP_SUFFIX"] || "dc=kosmos,dc=org"
+    client.modify dn: dn, operations: operations
+    client.get_operation_result.code
   end
 
   def add_attribute(dn, attr, values)
-    ldap_client.add_attribute dn, attr, values
+    client.add_attribute dn, attr, values
+    client.get_operation_result.code
   end
 
   def replace_attribute(dn, attr, values)
-    ldap_client.replace_attribute dn, attr, values
+    client.replace_attribute dn, attr, values
+    client.get_operation_result.code
   end
 
   def delete_attribute(dn, attr)
-    ldap_client.delete_attribute dn, attr
+    client.delete_attribute dn, attr
+    client.get_operation_result.code
   end
 
   def add_entry(dn, attrs, interactive=false)
-    puts "Adding entry: #{dn}" if interactive
+    puts "Add entry: #{dn}" if interactive
-    res = ldap_client.add dn: dn, attributes: attrs
+    client.add dn: dn, attributes: attrs
-    puts res.inspect if interactive && !res
+    client.get_operation_result.code
-    res
   end
 
   def delete_entry(dn, interactive=false)
-    puts "Deleting entry: #{dn}" if interactive
+    puts "Delete entry: #{dn}" if interactive
-    res = ldap_client.delete dn: dn
+    client.delete dn: dn
-    puts res.inspect if interactive && !res
+    client.get_operation_result.code
-    res
   end
 
-  def delete_all_entries!
+  def delete_all_users!
+    delete_all_entries!(objectclass: "person")
+  end
+
+  def delete_all_entries!(objectclass: "*")
     if Rails.env.production?
       raise "Mass deletion of entries not allowed in production"
     end
 
-    filter  = Net::LDAP::Filter.eq("objectClass", "*")
+    filter  = Net::LDAP::Filter.eq("objectClass", objectclass)
-    entries = ldap_client.search(base: @suffix, filter: filter, attributes: %w{dn})
+    entries = client.search(base: ldap_suffix, filter: filter, attributes: %w{dn})
     entries.sort_by!{ |e| e.dn.length }.reverse!
 
     entries.each do |e|
@@ -45,18 +51,18 @@ class LdapService < ApplicationService
 
   def fetch_users(args={})
     if args[:ou]
-      treebase = "ou=#{args[:ou]},cn=users,#{@suffix}"
+      treebase = "ou=#{args[:ou]},cn=users,#{ldap_suffix}"
     else
       treebase = ldap_config["base"]
     end
 
     attributes = %w[
-      dn cn uid mail displayName admin service
+      dn cn uid mail displayName admin serviceEnabled
-      mailRoutingAddress mailpassword
+      mailRoutingAddress mailpassword nostrKey
     ]
     filter = Net::LDAP::Filter.eq("uid", args[:uid] || "*")
 
-    entries = ldap_client.search(base: treebase, filter: filter, attributes: attributes)
+    entries = client.search(base: treebase, filter: filter, attributes: attributes)
     entries.sort_by! { |e| e.cn[0] }
     entries = entries.collect do |e|
       {
@@ -64,9 +70,10 @@ class LdapService < ApplicationService
         mail: e.try(:mail) ? e.mail.first : nil,
         display_name: e.try(:displayName) ? e.displayName.first : nil,
         admin: e.try(:admin) ? 'admin' : nil,
-        service: e.try(:service),
+        services_enabled: e.try(:serviceEnabled),
         email_maildrop: e.try(:mailRoutingAddress),
-        email_password: e.try(:mailpassword)
+        email_password: e.try(:mailpassword),
+        nostr_key: e.try(:nostrKey) ? e.nostrKey.first : nil
       }
     end
   end
@@ -75,9 +82,9 @@ class LdapService < ApplicationService
     attributes = %w{dn ou description}
     filter     = Net::LDAP::Filter.eq("objectClass", "organizationalUnit")
     # filter     = Net::LDAP::Filter.eq("objectClass", "*")
-    treebase   = "cn=users,#{@suffix}"
+    treebase   = "cn=users,#{ldap_suffix}"
 
-    entries = ldap_client.search(base: treebase, filter: filter, attributes: attributes)
+    entries = client.search(base: treebase, filter: filter, attributes: attributes)
 
     entries.sort_by! { |e| e.ou[0] }
 
@@ -91,10 +98,10 @@ class LdapService < ApplicationService
   end
 
   def add_organization(ou, description, interactive=false)
-    dn = "ou=#{ou},cn=users,#{@suffix}"
+    dn = "ou=#{ou},cn=users,#{ldap_suffix}"
 
     aci = <<-EOS
-(target="ldap:///cn=*,ou=#{ou},cn=users,#{@suffix}")(targetattr="cn || sn || uid || mail || userPassword || nsRole || objectClass") (version 3.0; acl "service-#{ou.gsub(".", "-")}-read-search"; allow (read,search) userdn="ldap:///uid=service,ou=#{ou},cn=applications,#{@suffix}";)
+(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}";)
     EOS
 
     attrs = {
@@ -115,22 +122,22 @@ class LdapService < ApplicationService
     delete_all_entries!
 
     user_read_aci = <<-EOS
-(target="ldap:///#{@suffix}")(targetattr="*") (version 3.0; acl "user-read-search-own-attributes"; allow (read,search) userdn="ldap:///self";)
+(target="ldap:///#{ldap_suffix}")(targetattr="*") (version 3.0; acl "user-read-search-own-attributes"; allow (read,search) userdn="ldap:///self";)
     EOS
 
-    add_entry @suffix, {
+    add_entry ldap_suffix, {
       dc: "kosmos", objectClass: ["top", "domain"], aci: user_read_aci
     }, true
 
-    add_entry "cn=users,#{@suffix}", {
+    add_entry "cn=users,#{ldap_suffix}", {
        cn: "users", objectClass: ["top", "organizationalRole"]
     }, true
   end
 
   private
 
-  def ldap_client
+  def client
-    ldap_client ||= Net::LDAP.new host: ldap_config['host'],
+    client ||= Net::LDAP.new host: ldap_config['host'],
       port: ldap_config['port'],
       # TODO has to be :simple_tls if TLS is enabled
       # encryption: ldap_config['ssl'],
@@ -144,4 +151,8 @@ class LdapService < ApplicationService
   def ldap_config
     ldap_config ||= YAML.load(ERB.new(File.read("#{Rails.root}/config/ldap.yml")).result)[Rails.env]
   end
+
+  def ldap_suffix
+    @ldap_suffix ||= ENV["LDAP_SUFFIX"] || "dc=kosmos,dc=org"
+  end
 end

app/services/lndhub.rb

@@ -1,24 +1,20 @@
-class Lndhub
+class Lndhub < ApplicationService
   attr_accessor :auth_token
 
-  def initialize
+  def post(path, payload)
-    @base_url = ENV["LNDHUB_API_URL"]
-  end
-
-  def post(endpoint, payload)
     headers = { "Content-Type" => "application/json" }
     if auth_token
       headers.merge!({ "Authorization" => "Bearer #{auth_token}" })
     end
 
-    res = Faraday.post "#{@base_url}/#{endpoint}", payload.to_json, headers
+    res = Faraday.post endpoint_url(path), payload.to_json, headers
     log_error(res) if res.status != 200
 
     JSON.parse(res.body)
   end
 
-  def get(endpoint, auth_token)
+  def get(path, auth_token)
-    res = Faraday.get("#{@base_url}/#{endpoint}", {}, {
+    res = Faraday.get(endpoint_url(path), {}, {
       "Content-Type" => "application/json",
       "Accept" => "application/json",
       "Authorization" => "Bearer #{auth_token}"
@@ -42,7 +38,7 @@ class Lndhub
     self.auth_token
   end
 
-  def balance(user_token=nil)
+  def fetch_balance(user_token=nil)
     get "balance", user_token || auth_token
   end
 
@@ -72,4 +68,14 @@ class Lndhub
       Sentry.capture_message("Lndhub API request failed: #{res.body}")
     end
   end
+
+  private
+
+    def base_url
+      @base_url ||= Setting.lndhub_api_url
+    end
+
+    def endpoint_url(path)
+      "#{base_url}/#{path.gsub(/^\//, '')}"
+    end
 end

app/services/lndhub_manager/create_user_invoice.rb

@@ -0,0 +1,13 @@
+module LndhubManager
+  class CreateUserInvoice < LndhubV2
+    def initialize(user:, payload:)
+      @user = user
+      @payload = payload
+    end
+
+    def call
+      authenticate @user
+      create_invoice @payload
+    end
+  end
+end

app/services/lndhub_manager/fetch_user_balance.rb

@@ -0,0 +1,12 @@
+module LndhubManager
+  class FetchUserBalance < Lndhub
+    def initialize(auth_token:)
+      @auth_token = auth_token
+    end
+
+    def call
+      data = fetch_balance(auth_token)
+      data["BTC"]["AvailableBalance"] rescue nil
+    end
+  end
+end

app/services/lndhub_v2.rb

@@ -1,13 +1,13 @@
 class LndhubV2 < Lndhub
 
-  def post(endpoint, payload, options={})
+  def post(path, payload, options={})
     headers = { "Content-Type" => "application/json" }
     if auth_token
       headers.merge!({ "Authorization" => "Bearer #{auth_token}" })
     elsif options[:admin_token]
       headers.merge!({ "Authorization" => "Bearer #{options[:admin_token]}" })
     end
-    res = Faraday.post "#{@base_url}/#{endpoint}", payload.to_json, headers
+    res = Faraday.post endpoint_url(path), payload.to_json, headers
     log_error(res) if res.status != 200
 
     JSON.parse(res.body)

app/services/nostr_manager/create_zap_receipt.rb

@@ -0,0 +1,25 @@
+module NostrManager
+  class CreateZapReceipt < NostrManagerService
+    def initialize(zap:, paid_at:, preimage:)
+      @zap, @paid_at, @preimage = zap, paid_at, preimage
+    end
+
+    def call
+      request_tags = parse_tags(@zap.request_event.tags)
+
+      site_user.create_event(
+        kind: 9735,
+        created_at: @paid_at,
+        content: "",
+        tags: [
+          ["p", request_tags[:p].first],
+          ["e", request_tags[:e]&.first],
+          ["a", request_tags[:a]&.first],
+          ["bolt11", @zap.payment_request],
+          ["preimage", @preimage],
+          ["description", @zap.request_event.to_json]
+        ].reject { |t| t[1].nil? }
+      )
+    end
+  end
+end

app/services/nostr_manager/publish_event.rb

@@ -0,0 +1,50 @@
+module NostrManager
+  class PublishEvent < NostrManagerService
+    def initialize(event:, relay_url:)
+      relay_name = URI.parse(relay_url).host
+      @relay = Nostr::Relay.new(url: relay_url, name: relay_name)
+
+      if event.is_a?(Nostr::Event)
+        @event = event
+      else
+        @event = Nostr::Event.new(**event.symbolize_keys)
+      end
+
+      @client = Nostr::Client.new
+    end
+
+    def call
+      client, relay, event = @client, @relay, @event
+      log_prefix = "[nostr][#{relay.name}]"
+
+      thread = Thread.new do
+        client.on :connect do
+          puts "#{log_prefix} Publishing #{event.id}..."
+          client.publish event
+        end
+
+        client.on :error do |e|
+          puts "#{log_prefix} Error: #{e}"
+          puts "#{log_prefix} Closing thread..."
+          thread.exit
+        end
+
+        client.on :message do |m|
+          puts "#{log_prefix} Message: #{m}"
+          msg = JSON.parse(m) rescue []
+          if msg[0] == "OK" && msg[1] == event.id && msg[2]
+            puts "#{log_prefix} Event published. Closing thread..."
+          else
+            puts "#{log_prefix} Unexpected message from relay. Closing thread..."
+          end
+          thread.exit
+        end
+
+        puts "#{log_prefix} Connecting to #{relay.url}..."
+        client.connect relay
+      end
+
+      thread.join
+    end
+  end
+end

app/services/nostr_manager/publish_zap_receipt.rb

@@ -0,0 +1,24 @@
+module NostrManager
+  class PublishZapReceipt < NostrManagerService
+    def initialize(zap:, delayed: true)
+      @zap, @delayed = zap, delayed
+    end
+
+    def call
+      tags = parse_tags(@zap.request_event.tags)
+      relays = tags[:relays].take(Setting.nostr_zaps_relay_limit)
+
+      if Setting.nostr_relay_url.present?
+        relays << Setting.nostr_relay_url
+      end
+
+      relays.uniq.each do |relay_url|
+        if @delayed
+          NostrPublishEventJob.perform_later(event: @zap.receipt, relay_url: relay_url)
+        else
+          NostrManager::PublishEvent.call(event: @zap.receipt_event, relay_url: relay_url)
+        end
+      end
+    end
+  end
+end

app/services/nostr_manager/validate_id.rb

@@ -1,11 +0,0 @@
-module NostrManager
-  class ValidateId < NostrManagerService
-    def initialize(event:)
-      @event = Nostr::Event.new(**event)
-    end
-
-    def call
-      @event.id == Digest::SHA256.hexdigest(JSON.generate(@event.serialize))
-    end
-  end
-end

app/services/nostr_manager/verify_auth.rb

@@ -0,0 +1,18 @@
+module NostrManager
+  class VerifyAuth < NostrManagerService
+    def initialize(event:, challenge:)
+      @event = event
+      @challenge_expected = challenge
+      @site_expected = Setting.accounts_domain
+    end
+
+    def call
+      tags            = parse_tags(@event.tags)
+      site_given      = tags[:site].first
+      challenge_given = tags[:challenge].first
+
+      site_given == @site_expected &&
+      challenge_given == @challenge_expected
+    end
+  end
+end

app/services/nostr_manager/verify_signature.rb

@@ -1,17 +0,0 @@
-module NostrManager
-  class VerifySignature < NostrManagerService
-    def initialize(event:)
-      @event = Nostr::Event.new(**event)
-    end
-
-    def call
-      Schnorr.check_sig!(
-        [@event.id].pack('H*'),
-        [@event.pubkey].pack('H*'),
-        [@event.sig].pack('H*')
-      )
-    rescue Schnorr::InvalidSignatureError
-      false
-    end
-  end
-end

app/services/nostr_manager/verify_zap_request.rb

@@ -0,0 +1,51 @@
+module NostrManager
+  class VerifyZapRequest < NostrManagerService
+    def initialize(amount:, event:, lnurl: nil)
+      @amount, @event, @lnurl = amount, event, lnurl
+    end
+
+    # https://github.com/nostr-protocol/nips/blob/27fef638e2460139cc9078427a0aec0ce4470517/57.md#appendix-d-lnurl-server-zap-request-validation
+    def call
+      tags = parse_tags(@event.tags)
+
+      @event.verify_signature &&
+      @event.kind == 9734 &&
+      tags.present? &&
+      valid_p_tag?(tags[:p]) &&
+      valid_e_tag?(tags[:e]) &&
+      valid_a_tag?(tags[:a]) &&
+      valid_amount_tag?(tags[:amount]) &&
+      valid_lnurl_tag?(tags[:lnurl])
+    end
+
+    def valid_p_tag?(tag)
+      return false unless tag.present? && tag.length == 1
+      key = Nostr::PublicKey.new(tag.first) rescue nil
+      key.present?
+    end
+
+    def valid_e_tag?(tag)
+      return true unless tag.present?
+      # TODO validate format of event ID properly
+      tag.length == 1 && tag.first.is_a?(String)
+    end
+
+    def valid_a_tag?(tag)
+      return true unless tag.present?
+      # TODO validate format of event coordinate properly
+      tag.length == 1 && tag.first.is_a?(String)
+    end
+
+    def valid_amount_tag?(tag)
+      return true unless tag.present?
+      amount = tag.first
+      amount.is_a?(String) && amount.to_i == @amount
+    end
+
+    def valid_lnurl_tag?(tag)
+      return true unless tag.present?
+      # TODO validate lnurl matching recipient's lnurlp
+      tag.first.is_a?(String)
+    end
+  end
+end

app/services/nostr_manager_service.rb

@@ -1,4 +1,22 @@
 require "nostr"
 
 class NostrManagerService < ApplicationService
+  def parse_tags(tags)
+    out = {}
+    tags.each do |tag|
+      out[tag[0].to_sym] = tag[1, tag.length]
+    end
+    out
+  end
+
+  def site_keypair
+    Nostr::KeyPair.new(
+      private_key: Nostr::PrivateKey.new(Setting.nostr_private_key),
+      public_key: Nostr::PublicKey.new(Setting.nostr_public_key)
+    )
+  end
+
+  def site_user
+    Nostr::User.new(keypair: site_keypair)
+  end
 end

app/views/admin/donations/_donation.json.jbuilder

@@ -1,2 +0,0 @@
-json.extract! donation, :id, :user_id, :amount_sats, :amount_eur, :amount_usd, :public_name, :created_at, :updated_at
-json.url donation_url(donation, format: :json)

app/views/admin/donations/_form.html.erb

@@ -14,14 +14,24 @@
     <%= form.label :user_id %>
     <%= form.collection_select :user_id, User.where(ou: Setting.primary_domain).order(:cn), :id, :cn, {} %>
 
+    <%= form.label :donation_method, "Donation method" %>
+    <%= form.select :donation_method, options_for_select([
+          ["Custom (manual)", "custom"],
+          ["BTCPay", "btcpay"],
+          ["LndHub account", "lndhub"],
+          ["OpenCollective", "opencollective"]
+        ], selected: (donation.donation_method || "custom")) %>
+
     <%= form.label :amount_sats, "Amount BTC (sats)" %>
     <%= form.number_field :amount_sats %>
 
-    <%= form.label :amount_eur, "Amount EUR (cents)" %>
+    <%= form.label :fiat_amount, "Fiat Amount (cents)" %>
-    <%= form.number_field :amount_eur %>
+    <%= form.number_field :fiat_amount %>
 
-    <%= form.label :amount_usd, "Amount USD (cents)"%>
+    <%= form.label :fiat_currency, "Fiat Currency" %>
-    <%= form.number_field :amount_usd %>
+    <%= form.select :fiat_currency, options_for_select([
+          ["EUR", "EUR"], ["USD", "USD"], ["sats", "sats"]
+        ], selected: donation.fiat_currency) %>
 
     <%= form.label :public_name %>
     <%= form.text_field :public_name %>

app/views/admin/donations/index.html.erb

@@ -25,9 +25,8 @@
       <thead>
         <tr>
           <th>User</th>
-          <th class="text-right">Amount BTC</th>
+          <th class="text-right">Sats</th>
-          <th class="text-right">in EUR</th>
+          <th class="text-right">Fiat Amount</th>
-          <th class="text-right">in USD</th>
           <th class="pl-2">Public name</th>
           <th>Date</th>
           <th></th>
@@ -36,10 +35,9 @@
       <tbody>
         <% @donations.each do |donation| %>
           <tr>
-            <td><%= link_to donation.user.address, admin_user_path(donation.user.address), class: 'ks-text-link' %></td>
+            <td><%= link_to donation.user.cn, admin_user_path(donation.user.cn), class: 'ks-text-link' %></td>
-            <td class="text-right"><%= sats_to_btc donation.amount_sats %></td>
+            <td class="text-right"><% if donation.amount_sats.present? %><%= number_with_delimiter donation.amount_sats %><% end %></td>
-            <td class="text-right"><% if donation.amount_eur.present? %><%= number_to_currency donation.amount_eur / 100, unit: "" %><% end %></td>
+            <td class="text-right"><% if donation.fiat_amount.present? %><%= number_to_currency donation.fiat_amount.to_f / 100, unit: "" %> <%= donation.fiat_currency %><% end %></td>
-            <td class="text-right"><% if donation.amount_usd.present? %><%= number_to_currency donation.amount_usd / 100, unit: "" %><% end %></td>
             <td class="pl-2"><%= donation.public_name %></td>
             <td><%= donation.paid_at ? donation.paid_at.strftime("%Y-%m-%d (%H:%M UTC)") : "" %></td>
             <td class="text-right">

app/views/admin/donations/index.json.jbuilder

@@ -1 +0,0 @@
-json.array! @donations, partial: "donations/donation", as: :donation

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

@@ -6,19 +6,19 @@
       <tbody>
         <tr>
           <th>User</th>
-          <td><%= link_to @donation.user.address, admin_user_path(@donation.user.address), class: 'ks-text-link' %></td>
+          <td><%= link_to @donation.user.cn, admin_user_path(@donation.user.cn), class: 'ks-text-link' %></td>
+        </tr>
+        <tr>
+          <th>Donation Method</th>
+          <td><%= @donation.donation_method %></td>
         </tr>
         <tr>
           <th>Amount sats</th>
           <td><%= @donation.amount_sats %></td>
         </tr>
         <tr>
-          <th>Amount EUR</th>
+          <th>Fiat amount</th>
-          <td><%= @donation.amount_eur %></td>
+          <td><% if @donation.fiat_amount.present? %><%= number_to_currency @donation.fiat_amount.to_f / 100, unit: "" %> <%= @donation.fiat_currency %><% end %></td>
-        </tr>
-        <tr>
-          <th>Amount USD</th>
-          <td><%= @donation.amount_usd %></td>
         </tr>
         <tr>
           <th>Public name</th>
@@ -26,7 +26,7 @@
         </tr>
         <tr>
           <th>Date</th>
-          <td><%= @donation.paid_at.strftime("%Y-%m-%d (%H:%M UTC)") %></td>
+          <td><%= @donation.paid_at&.strftime("%Y-%m-%d (%H:%M UTC)") %></td>
         </tr>
       </tbody>
     </table>

app/views/admin/donations/show.json.jbuilder

@@ -1 +0,0 @@
-json.partial! "donations/donation", donation: @donation

app/views/admin/invitations/index.html.erb

@@ -38,8 +38,8 @@
             <tr>
               <td class="overflow-ellipsis font-mono"><%= invitation.token %></td>
               <td><%= invitation.used_at.strftime("%Y-%m-%d (%H:%M UTC)") %></td>
-              <td><%= link_to invitation.user.address, admin_user_path(invitation.user.address), class: "ks-text-link" %></td>
+              <td><%= link_to invitation.user.cn, admin_user_path(invitation.user.cn), class: "ks-text-link" %></td>
-              <td><%= link_to invitation.invitee.address, admin_user_path(invitation.invitee.address), class: "ks-text-link" %></td>
+              <td><%= link_to invitation.invitee.cn, admin_user_path(invitation.invitee.cn), class: "ks-text-link" %></td>
             </tr>
           <% end %>
         </tbody>

app/views/admin/lightning/index.html.erb

@@ -36,7 +36,7 @@
             </td>
             <td>
               <% if user = @users.find{ |u| u[2] == account.login } %>
-                <%= link_to "#{user[0]}@#{user[1]}", admin_user_path("#{user[0]}@#{user[1]}"), class: "ks-text-link" %>
+                <%= link_to user[0], admin_user_path(user[0]), class: "ks-text-link" %>
               <% end %>
             </td>
             <td><%= number_with_delimiter account.balance.to_i.to_s %></td>

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

@@ -7,4 +7,32 @@
     title: "Enable Nostr integration (experimental)",
     description: "Allow adding nostr pubkeys and resolve user addresses via NIP-05"
   ) %>
+<% if Setting.nostr_enabled? %>
+  <%= render FormElements::FieldsetResettableSettingComponent.new(
+        key: :nostr_private_key,
+        type: :password,
+        title: "Private key",
+        description: "The private key of the accounts service, used when publishing events (e.g. zap receipts)"
+      ) %>
+  <%= render FormElements::FieldsetResettableSettingComponent.new(
+        key: :nostr_public_key,
+        title: "Public key",
+        description: "The corresponding public key of the accounts service"
+      ) %>
+  <%= render FormElements::FieldsetResettableSettingComponent.new(
+        key: :nostr_relay_url,
+        title: "Relay URL",
+        description: "Websockets URL of a relay associated with #{Setting.primary_domain}"
+      ) %>
 </ul>
+</section>
+<section>
+<h3>Zaps</h3>
+<ul role="list">
+  <%= render FormElements::FieldsetResettableSettingComponent.new(
+        key: :nostr_zaps_relay_limit,
+        title: "Relay limit",
+        description: "The maximum number of relays to publish zap receipts to"
+      ) %>
+</ul>
+<% end %>

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

@@ -36,7 +36,7 @@
             <th>Invited by</th>
             <td>
             <% if @user.inviter %>
-              <%= link_to @user.inviter.address, admin_user_path(@user.inviter.address), class: 'ks-text-link' %>
+              <%= link_to @user.inviter.cn, admin_user_path(@user.inviter.cn), class: 'ks-text-link' %>
             <% else %>&mdash;<% end %>
             </td>
           </tr>
@@ -78,7 +78,7 @@
             <% if @user.invitees.length > 0 %>
               <ul class="mb-0">
               <% @user.invitees.order(cn: :asc).each do |invitee| %>
-                <li class="leading-none mb-2 last:mb-0"><%= link_to invitee.address, admin_user_path(invitee.address), class: 'ks-text-link' %></li>
+                <li class="leading-none mb-2 last:mb-0"><%= link_to invitee.cn, admin_user_path(invitee.cn), class: 'ks-text-link' %></li>
               <% end %>
               </ul>
             <% else %>&mdash;<% end %>
@@ -124,6 +124,19 @@
           </td>
         </tr>
         <% end %>
+        <% if Setting.email_enabled %>
+        <tr>
+          <td>E-Mail</td>
+          <td>
+            <%= render FormElements::ToggleComponent.new(
+              enabled: Flipper.enabled?(:email, current_user),
+              input_enabled: false
+            ) %>
+          </td>
+          <td class="text-right">
+          </td>
+        </tr>
+        <% end %>
         <% if Setting.gitea_enabled %>
         <tr>
           <td>Gitea</td>
@@ -182,6 +195,33 @@
           </td>
         </tr>
         <% end %>
+        <% if Setting.nostr_enabled %>
+        <tr>
+          <td>Nostr</td>
+          <td>
+            <%= render FormElements::ToggleComponent.new(
+              enabled: @user.nostr_pubkey.present?,
+              input_enabled: false
+            ) %>
+          </td>
+          <td class="text-right">
+            <%= link_to "Open profile", "https://njump.me/#{@user.nostr_pubkey_bech32}", class: "btn-sm btn-gray" %>
+          </td>
+        </tr>
+        <% end %>
+        <% if Setting.remotestorage_enabled %>
+        <tr>
+          <td>remoteStorage</td>
+          <td>
+            <%= render FormElements::ToggleComponent.new(
+              enabled: Flipper.enabled?(:remotestorage, current_user) && @services_enabled.include?("remotestorage"),
+              input_enabled: false
+            ) %>
+          </td>
+          <td class="text-right">
+          </td>
+        </tr>
+        <% end %>
       </tbody>
     </table>
   </section>

app/views/contributions/donations/_bitcoin.html.erb

@@ -0,0 +1,36 @@
+<div class="rounded-lg p-6 bg-emerald-50 hover:bg-emerald-100 transition-colors">
+  <h3 class="mb-4 text-lg font-bold">Donate directly with Bitcoin</h3>
+  <p class="mb-6">
+    Open-source money for open-source services.
+  </p>
+  <div data-controller="modal" data-action="keydown.esc->modal#close">
+    <button class="btn-md btn-emerald w-full lg:w-1/2" data-action="click->modal#open">
+      Donate
+    </button>
+    <%= render ModalComponent.new(show_close_button: false) do %>
+      <div>
+        <h3>Your contribution</h3>
+
+        <%= form_with(url: contributions_donations_url, method: :post) do |f| %>
+          <%= f.hidden_field :donation_method, value: "btcpay" %>
+
+          <div class="mb-6 flex gap-2">
+            <%= f.number_field :amount, required: true %>
+            <%= f.select :currency, options_for_select([
+                  ["EUR", "EUR"], ["USD", "USD"], ["sats", "sats"]
+                ], selected: "EUR"), class: "flex-none" %>
+          </div>
+
+          <%= render FormElements::FieldsetComponent.new(tag: "div", title: "Public name") do %>
+            <%= f.text_field :public_name, class: "w-full", placeholder: "Anonymous"  %>
+          <% end %>
+
+          <p class="mt-12">
+            <%= f.submit 'Continue', data: { turbo: false },
+                  class: "btn-md btn-blue w-full" %>
+          </p>
+        <% end %>
+      </div>
+    <% end %>
+  </div>
+</div>

app/views/contributions/donations/_list.html.erb

@@ -0,0 +1,37 @@
+<ul class="list-none">
+  <% donations.each do |donation| %>
+    <li class="mb-8 grid gap-y-2 grid-cols-2 items-center">
+      <h3 class="mb-0">
+        <% if donation.completed? %>
+        <%= donation.paid_at.strftime("%B %d, %Y") %>
+        <% else %>
+        <%= donation.created_at.strftime("%B %d, %Y") %>
+        <% end %>
+      </h3>
+      <p class="row-span-2 font-mono text-right mb-0">
+        <span class="text-xl">
+          <%= number_with_delimiter donation.amount_sats %> sats
+        </span>
+        <br>
+        <span class="text-sm text-gray-500">
+          (~ <%= number_to_currency donation.fiat_amount.to_f / 100, unit: "" %> <%= donation.fiat_currency %>)
+        </span>
+      </p>
+      <p class="mb-0 text-gray-500">
+        <% if donation.processing? %>
+          Waiting for confirmations
+          <% if donation.donation_method == "btcpay" %>
+            <%= link_to "check status", btcpay_checkout_url(donation.btcpay_invoice_id),
+                  class: "ml-2 btn-sm btn-gray" %>
+          <% end %>
+        <% else %>
+          <% if donation.public_name.present? %>
+            As: <%= donation.public_name %>
+          <% else %>
+            Anonymous
+          <% end %>
+        <% end %>
+      </p>
+    </li>
+  <% end %>
+</ul>

app/views/contributions/donations/_opencollective.html.erb

@@ -0,0 +1,6 @@
+<div class="rounded-lg p-6 bg-zinc-100 hover:bg-zinc-200 transition-colors">
+  <h3 class="mb-4 text-lg font-bold text-gray-500">Donate via OpenCollective</h3>
+  <p class="text-gray-600 text-gray-500">
+    Coming soon.
+  </p>
+</div>

app/views/contributions/donations/index.html.erb

@@ -2,50 +2,39 @@
 
 <%= render MainWithTabnavComponent.new(tabnav_partial: "shared/tabnav_contributions") do %>
   <section>
-    <% if @donations.any? %>
+    <p class="mb-12">
-      <p class="mb-12">
+      Your financial contributions to the development and upkeep of Kosmos
-        Your financial contributions to the development and upkeep of Kosmos
+      software and services.
-        software and services.
+    </p>
-      </p>
-      <ul class="list-none">
-        <% @donations.each do |donation| %>
-          <li class="mb-8 grid gap-y-2 gap-x-8 grid-cols-2 items-center">
-            <h3 class="mb-0">
-              <%= donation.paid_at.strftime("%B %d, %Y") %>
-            </h3>
-            <p class="row-span-2 font-mono text-right mb-0">
-              <span class="text-xl">
-                <%= number_with_delimiter donation.amount_sats %> sats
-              </span>
-              <br>
-              <span class="text-sm text-gray-500">
-                (~ <%= number_to_currency donation.amount_eur / 100, unit: "" %> EUR)
-              </span>
-            </p>
-            <p class="mb-0">
-              <% if donation.public_name.present? %>
-                Public name: <%= donation.public_name %>
-              <% else %>
-                Anonymous
-              <% end %>
-            </p>
-          </li>
-        <% end %>
-      </ul>
-    <% else %>
-      <div class="text-center">
-        <p class="mt-8 mb-12 inline-flex align-center items-center">
-          <%= image_tag("/img/illustrations/undraw_savings_re_eq4w.svg", class: 'h-48') %>
-        </p>
-        <h3>
-          No donations yet
-        </h3>
-        <p class="text-gray-500">
-          The donation process is not automated yet.<br>Please
-          <a href="https://wiki.kosmos.org/Main_Page#Community_.2F_Getting_in_touch_.2F_Getting_involved" class="ks-text-link" target="_blank">contact us</a>
-          if you'd like to contribute this way right now.
-        </p>
-      </div>
-    <% end %>
   </section>
+
+  <section class="donation-methods">
+    <div class="grid grid-cols-1 sm:grid-cols-2 gap-4 sm:gap-6">
+      <% if @donation_methods.include?(:btcpay) ||
+            @donation_methods.include?(:lndhub) %>
+        <%= render partial: "contributions/donations/bitcoin", locals: {
+          donation_methods: @donation_methods, lndhub_balance: @balance
+        } %>
+      <% end %>
+      <% if @donation_methods.include?(:opencollective) %>
+        <%= render partial: "contributions/donations/opencollective" %>
+      <% end %>
+    </div>
+  </section>
+
+  <% if @donations_pending.any? %>
+  <section class="donation-list">
+    <h2>Pending</h2>
+    <%= render partial: "contributions/donations/list",
+               locals: { donations: @donations_pending } %>
+  </section>
+  <% end %>
+
+  <% if @donations_completed.any? %>
+  <section class="donation-list">
+    <h2>Past contributions</h2>
+    <%= render partial: "contributions/donations/list",
+               locals: { donations: @donations_completed } %>
+  </section>
+  <% end %>
 <% end %>

app/views/contributions/projects/index.html.erb

@@ -16,8 +16,8 @@
     <p>
       There's something to do for everyone, especially non-programmers! For
       example, we need more help with graphics, UI/UX design, and
-      content/copywriting. We also need moderators for social media. And beta
+      content/copywriting. Also, testing any of our software and reporting
-      testers for our software. The list doesn't end there.
+      issues you encounter along the way is very valuable.
     </p>
     <p>
       A good way to get started is to join one of our
@@ -43,7 +43,7 @@
     </p>
     <p>
       We have run two 6-month trials so far, with the next trial period
-      starting sometime in Q1 2024. Watch your email for notifications about it!
+      starting sometime in Q2 2024. Watch your email for notifications about it!
     </p>
   </section>
 <% end %>

app/views/dashboard/index.html.erb

@@ -5,7 +5,7 @@
     <div class="services grid grid-cols-1 sm:grid-cols-2 gap-4 sm:gap-6">
       <% if Setting.ejabberd_enabled? %>
         <div class="border border-gray-300 rounded-md hover:border-gray-400
-                    bg-cover bg-[center_top_-50px] bg-no-repeat
+                    bg-[length:86%] bg-[center_top_-40px] bg-no-repeat
                     bg-[url(/img/logos/icon_xmpp.svg)]">
           <%= link_to services_chat_path,
                 class: "block h-full px-6 py-6 rounded-md" do %>
@@ -18,7 +18,7 @@
       <% end %>
       <% if Setting.mastodon_enabled? %>
         <div class="border border-gray-300 rounded-md hover:border-gray-400
-                    bg-[length:80%] bg-[right_top_-30px] bg-no-repeat
+                    bg-[length:88%] bg-[center_top_-40px] bg-no-repeat
                     bg-[url(/img/logos/icon_mastodon.svg)]">
           <%= link_to services_mastodon_path, class: "block h-full px-6 py-6 rounded-md" do %>
             <h3 class="mb-3.5">Mastodon</h3>
@@ -30,7 +30,9 @@
       <% end %>
       <% if Setting.email_enabled? &&
             Flipper.enabled?(:email, current_user) %>
-        <div class="border border-gray-300 rounded-md hover:border-gray-400">
+        <div class="border border-gray-300 rounded-md hover:border-gray-400
+                    bg-[length:90%] bg-[center_top_-160px] bg-no-repeat
+                    bg-[url(/img/logos/icon_mail.svg)]">
           <%= link_to services_email_path, class: "block h-full px-6 py-6 rounded-md" do %>
             <h3 class="mb-3.5">E-Mail</h3>
             <p class="text-gray-600">
@@ -41,13 +43,13 @@
       <% end %>
       <% if Setting.discourse_enabled? %>
         <div class="border border-gray-300 rounded-md hover:border-gray-400
-                    bg-[length:95%] bg-center bg-no-repeat
+                    bg-[length:80%] bg-center bg-no-repeat
                     bg-[url(/img/logos/icon_discourse.svg)]">
           <%= link_to "#{Setting.discourse_public_url}/session/sso?return_path=/",
                 class: "block h-full px-6 py-6 rounded-md" do %>
             <h3 class="mb-3.5">Discourse</h3>
             <p class="text-gray-600">
-              Kosmos community forums and user support/help site
+              Community forums and support/help site
             </p>
           <% end %>
         </div>
@@ -67,7 +69,9 @@
       <% end %>
       <% if Setting.remotestorage_enabled? &&
             Flipper.enabled?(:remotestorage, current_user) %>
-        <div class="border border-gray-300 rounded-md hover:border-gray-400">
+        <div class="border border-gray-300 rounded-md hover:border-gray-400
+                    bg-[length:80%] bg-[center_top_-156px] bg-no-repeat
+                    bg-[url(/img/logos/icon_remotestorage.svg)]">
           <%= link_to services_storage_path,
                 class: "block h-full px-6 py-6 rounded-md" do %>
             <h3 class="mb-3.5">Storage</h3>
@@ -79,7 +83,7 @@
       <% end %>
       <% if Setting.gitea_enabled? %>
         <div class="border border-gray-300 rounded-md hover:border-gray-400
-                    bg-cover bg-center bg-no-repeat
+                    bg-[length:92%] bg-center bg-no-repeat
                     bg-[url(/img/logos/icon_gitea.png)]">
           <%= link_to Setting.gitea_public_url,
                 class: "block h-full px-6 py-6 rounded-md" do %>
@@ -92,7 +96,7 @@
       <% end %>
       <% if Setting.droneci_enabled? %>
         <div class="border border-gray-300 rounded-md hover:border-gray-400
-                    bg-cover bg-[center_top_-70px] bg-no-repeat
+                    bg-[length:86%] bg-[center_top_-60px] bg-no-repeat
                     bg-[url(/img/logos/icon_droneci.svg)]">
           <%= link_to Setting.droneci_public_url,
                 class: "block h-full px-6 py-6 rounded-md" do %>

app/views/devise/sessions/new.html.erb

@@ -55,4 +55,27 @@
       <%= f.submit "Log in", class: 'btn-md btn-blue w-full', tabindex: "4" %>
     </p>
   <% end %>
+
+  <div data-controller="nostr-login"
+       data-nostr-login-target="loginForm"
+       data-nostr-login-site-value="<%= Setting.accounts_domain %>"
+       data-nostr-login-shared-secret-value="<%= session[:shared_secret] %>"
+       class="hidden">
+    <div class="relative my-6">
+      <div class="absolute inset-0 flex items-center" aria-hidden="true">
+        <div class="w-full border-t border-gray-200"></div>
+      </div>
+      <div class="relative flex justify-center">
+        <span class="bg-white px-2 text-sm text-gray-500 italic">or</span>
+      </div>
+    </div>
+    <p>
+      <button disabled tabindex="5"
+              class="w-full btn-md btn-gray text-purple-600"
+              data-nostr-login-target="loginButton"
+              data-action="nostr-login#login">
+        Log in with Nostr
+      </button>
+    </p>
+  </div>
 <% end %>

app/views/icons/_nostrich-head.html.erb

@@ -0,0 +1,6 @@
+<svg width="24" height="24" class="icon-nostrich-head <%= custom_class %>" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
+  <path d="M3.03377 4.84648C2.38935 5.60878 1.88639 6.49681 1.5799 7.4713C3.32454 7.07836 5.64286 6.98406 6.95527 6.88189C7.36392 5.20013 8.52701 3.91915 10.476 4.0056C11.3169 4.04489 12.0556 4.58714 12.5664 5.42017C12.9436 5.01937 13.4466 4.75218 14.1146 4.65787C14.1617 4.65787 14.2639 4.65001 14.3425 4.65001C12.9593 3.14114 10.9868 2.18237 8.77849 2.18237C8.3777 2.18237 7.98476 2.22167 7.59183 2.28454C7.51324 2.28454 7.41108 2.30026 7.27748 2.33169C7.26962 2.33169 7.2539 2.33169 7.24604 2.33169C7.23818 2.33169 7.23032 2.33169 7.21461 2.33169C5.69001 2.70105 4.54264 2.40242 3.89037 1.51438C3.81964 1.42008 3.54458 1.00357 3.45814 0.272705C2.97876 0.767805 2.66441 1.58511 2.9316 2.45743C3.14379 3.149 3.54458 3.51836 3.97681 3.73054C3.31668 3.76984 2.76657 3.6441 2.21646 3.22759C1.89425 2.98396 1.68992 2.71677 1.352 2.01734C1.03765 2.51244 1.06909 3.06255 1.13195 3.34547C1.21054 3.72268 1.40701 4.14706 1.65849 4.39068C2.04357 4.76789 2.59368 4.85434 3.04162 4.84648H3.03377Z" fill="currentColor"/>
+  <path d="M10.4837 11.3458C11.4602 11.3458 12.2519 9.99116 12.2519 8.32016C12.2519 6.64917 11.4602 5.29456 10.4837 5.29456C9.50711 5.29456 8.71545 6.64917 8.71545 8.32016C8.71545 9.99116 9.50711 11.3458 10.4837 11.3458Z" fill="currentColor"/>
+  <path d="M14.3737 10.615C15.1376 10.615 15.7569 9.53831 15.7569 8.21019C15.7569 6.88207 15.1376 5.80542 14.3737 5.80542C13.6099 5.80542 12.9906 6.88207 12.9906 8.21019C12.9906 9.53831 13.6099 10.615 14.3737 10.615Z" fill="currentColor"/>
+  <path fill-rule="evenodd" clip-rule="evenodd" d="M7.52542 23.9833C7.53337 23.6314 7.66454 22.5232 8.7864 20.3047C9.2815 19.3381 10.4053 18.0021 11.2462 17.2791C11.6941 16.8862 12.1421 16.5561 12.5822 16.2496C12.8101 16.116 13.0222 15.9745 13.2266 15.8252C16.9076 13.5684 20.157 14.0396 22.8528 14.4306L22.9321 14.4421C22.9321 14.4421 23.5765 12.5246 20.9203 11.5344C19.4743 11 17.7689 10.5677 16.3465 10.2691C16.1422 10.6385 15.8828 10.9528 15.5763 11.1886C15.5721 11.1917 15.5678 11.195 15.5634 11.1983C15.3354 11.3696 14.795 11.7757 13.816 11.6601C13.313 11.5972 12.9279 11.3929 12.6215 11.0943C12.1028 11.9509 11.3562 12.5088 10.4917 12.5874C8.09483 12.7918 6.88458 10.7799 6.806 8.55591C5.00635 8.7288 2.55443 9.83688 1.24988 10.4813L1.25662 22.0396C2.92115 22.6846 5.41819 23.4807 7.52542 23.9833Z" fill="currentColor"/>
+</svg>

app/views/icons/_nostrich-n.html.erb

@@ -0,0 +1,3 @@
+<svg width="24" height="24" class="icon-nostrich-n <%= custom_class %>" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
+  <path d="M24 10.4604V23.135C24 23.6117 23.6161 23.9985 23.1429 23.9985H12.8578C12.3847 23.9985 12.0008 23.6117 12.0008 23.135V20.7746C12.0476 17.8812 12.3515 15.1096 12.9894 13.8487C13.3718 13.0904 14.0021 12.6777 14.7262 12.4569C16.0942 12.0426 18.4947 12.3259 19.5135 12.2772C19.5135 12.2772 22.5912 12.4005 22.5912 10.6447C22.5912 9.23147 21.2156 9.34264 21.2156 9.34264C19.6994 9.38223 18.5446 9.27868 17.7963 8.98173C16.5432 8.48528 16.5009 7.57462 16.4963 7.27005C16.4343 3.75228 11.2858 3.33046 6.74939 4.20305C1.78976 5.1533 6.80381 12.3152 6.80381 21.8756V23.1518C6.79474 23.6208 6.41834 24 5.94974 24H0.857089C0.383951 24 0 23.6132 0 23.1365V1.21523C0 0.738579 0.383951 0.351777 0.857089 0.351777H5.64439C6.11753 0.351777 6.50148 0.738579 6.50148 1.21523C6.50148 1.92335 7.29206 2.31777 7.86345 1.90508C9.58519 0.662437 11.7952 0 14.2682 0C19.8083 0 23.997 3.25279 23.997 10.4604H24ZM14.8033 7.88832C14.8033 6.86802 13.9825 6.04112 12.9697 6.04112C11.9569 6.04112 11.1361 6.86802 11.1361 7.88832C11.1361 8.90863 11.9569 9.73553 12.9697 9.73553C13.9825 9.73553 14.8033 8.90863 14.8033 7.88832Z" fill="currentColor"/>
+</svg>

app/views/icons/_nostrich.html.erb

@@ -0,0 +1,3 @@
+<svg width="24" height="24" viewBox="0 0 24 24" class="icon-nostrich <%= custom_class %>" fill="none" xmlns="http://www.w3.org/2000/svg">
+  <path d="M17.7084 10.1607C18.1683 13.3466 14.8705 14.0207 12.9733 13.9618C12.8515 13.958 12.7366 14.0173 12.6647 14.1157C12.4684 14.384 12.1547 14.7309 11.9125 14.7309C11.6405 14.7309 11.3957 15.254 11.284 15.5795C11.2723 15.6137 11.3059 15.6452 11.3403 15.634C14.345 14.6584 15.5241 14.3238 16.032 14.4178C16.4421 14.4937 17.209 15.8665 17.5413 16.5434C16.7155 16.5909 16.4402 15.8507 16.2503 15.7178C16.0985 15.6116 16.0415 16.0974 16.032 16.3536C15.8517 16.2587 15.6239 16.1259 15.6049 15.7178C15.5859 15.3098 15.3771 15.4142 15.2157 15.4332C15.0544 15.4521 12.5769 16.2493 12.2067 16.3536C11.8366 16.458 11.4094 16.6004 11.0582 16.8471C10.4697 17.1318 10.09 16.9325 9.98561 16.4485C9.90208 16.0614 10.4444 14.8701 10.726 14.3229C10.3779 14.4526 9.65529 14.7158 9.54898 14.7309C9.44588 14.7457 8.13815 15.7552 7.43879 16.3038C7.398 16.3358 7.37174 16.3827 7.36236 16.4336C7.25047 17.0416 6.89335 17.2118 6.27423 17.5303C5.77602 17.7867 4.036 20.4606 3.14127 21.9041C3.0794 22.0039 2.9886 22.0806 2.8911 22.1461C2.32279 22.5276 1.74399 23.4985 1.50923 23.9737C1.17511 23.0095 1.61048 22.1802 1.86993 21.886C1.75602 21.7873 1.49341 21.8449 1.37634 21.886C1.69907 20.7757 2.82862 20.7757 2.79066 20.7757C2.99948 20.5954 5.44842 17.0938 5.50538 16.9325C5.56187 16.7725 5.46892 16.0242 6.69975 15.6139C6.7193 15.6073 6.73868 15.5984 6.75601 15.5873C7.71493 14.971 8.43427 13.9774 8.67571 13.5542C7.39547 13.4662 5.92943 12.7525 5.16289 12.294C4.99765 12.1952 4.8224 12.1092 4.63108 12.0875C3.58154 11.9687 2.53067 12.6401 2.10723 13.0228C1.93258 12.7799 2.12938 12.0739 2.24961 11.7513C1.82437 11.6905 1.19916 12.308 0.939711 12.6243C0.658747 12.184 0.904907 11.397 1.06311 11.0585C0.501179 11.0737 0.120232 11.3306 0 11.4571C0.465109 7.99343 4.02275 9.00076 4.06259 9.04675C3.87275 8.84937 3.88857 8.59126 3.92021 8.48688C6.0749 8.54381 7.08105 8.18321 7.71702 7.81313C12.7288 5.01374 14.8882 6.73133 15.6856 7.1631C16.4829 7.59487 17.9304 7.77042 18.9318 7.37187C20.1278 6.83097 19.9478 5.43673 19.7054 4.90461C19.4397 4.32101 17.9399 3.51438 17.4084 2.49428C16.8768 1.47418 17.34 0.233672 17.9558 0.0607684C18.5425 -0.103972 18.9615 0.0876835 19.2831 0.378128C19.4974 0.571763 20.0994 0.710259 20.3509 0.800409C20.6024 0.890558 21.0201 1.00918 20.9964 1.08035C20.9726 1.15152 20.5699 1.14202 20.5075 1.14202C20.3794 1.14202 20.2275 1.161 20.3794 1.23217C20.5575 1.30439 20.8263 1.40936 20.955 1.47846C20.9717 1.48744 20.9683 1.51084 20.95 1.51577C20.0765 1.75085 19.2966 1.26578 18.7183 1.82526C18.1298 2.39463 19.3827 2.83114 20.0282 3.51438C20.6736 4.19762 21.3381 5.01372 20.8065 6.87365C20.395 8.31355 18.6703 9.53781 17.7795 10.0167C17.7282 10.0442 17.7001 10.1031 17.7084 10.1607Z" fill="currentColor"/>
+</svg>

app/views/notification_mailer/bitcoin_donation_confirmed.text.erb

@@ -0,0 +1,11 @@
+Hi <%= @user.display_name.presence || @user.cn %>,
+
+Your bitcoin donation has been confirmed successfully. <3
+
+Thank you so much for helping us with keeping the lights on, as well as with continually improving our services for you!
+
+You can find all of your past financial contributions on this page:
+
+<%= contributions_donations_url %>
+
+Have a nice day!

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

@@ -100,6 +100,14 @@
             ["Website", "https://www.thunderbird.net"]
           ]
         ) %>
+        <%= render AppInfoComponent.new(
+          name: "Geary",
+          description: "Built around conversations, for the GNOME desktop",
+          icon_path: "/img/logos/icon_geary.png",
+          links: [
+            ["Website", "https://wiki.gnome.org/Apps/Geary"]
+          ]
+        ) %>
       </div>
       <div id="apps-windows" class="hidden grid grid-cols-1 gap-6"
            data-tabs-target="panel">

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

@@ -98,7 +98,17 @@
           description: "The official Web app",
           icon_path: "/img/logos/icon_mastodon-2.svg",
           links: [
-            ["Launch", "https://kosmos.social"]
+            ["Launch", "https://kosmos.social"],
+            ["GitHub", "https://github.com/mastodon/mastodon"]
+          ]
+        ) %>
+        <%= render AppInfoComponent.new(
+          name: "Phanpy",
+          description: " A slick, feature-rich Web app for mobile and desktop",
+          icon_path: "/img/logos/icon_phanpy.svg",
+          links: [
+            ["Launch", "https://phanpy.social"],
+            ["GitHub", "https://github.com/cheeaun/phanpy"]
           ]
         ) %>
         <%= render AppInfoComponent.new(
@@ -150,6 +160,15 @@
             ["Google Play", "https://play.google.com/store/apps/details?id=org.joinmastodon.android.sk"]
           ]
         ) %>
+        <%= render AppInfoComponent.new(
+          name: "Phanpy",
+          description: " A slick, feature-rich Web app for mobile and desktop",
+          icon_path: "/img/logos/icon_phanpy.svg",
+          links: [
+            ["Launch", "https://phanpy.social"],
+            ["GitHub", "https://github.com/cheeaun/phanpy"]
+          ]
+        ) %>
       </div>
       <div class="hidden grid grid-cols-1 gap-6" data-tabs-target="panel">
         <%= render AppInfoComponent.new(
@@ -180,6 +199,15 @@
             ["App Store", "https://apps.apple.com/app/mammoth-for-mastodon/id1667573899"]
           ]
         ) %>
+        <%= render AppInfoComponent.new(
+          name: "Phanpy",
+          description: " A slick, feature-rich Web app for mobile and desktop",
+          icon_path: "/img/logos/icon_phanpy.svg",
+          links: [
+            ["Launch", "https://phanpy.social"],
+            ["GitHub", "https://github.com/cheeaun/phanpy"]
+          ]
+        ) %>
       </div>
       <div class="hidden grid grid-cols-1 gap-6" data-tabs-target="panel">
         <%= render AppInfoComponent.new(

app/views/settings/_lightning.html.erb

@@ -5,7 +5,7 @@
     <%= render FormElements::FieldsetComponent.new(
       positioning: :horizontal,
       title: "Sats received",
-      description: "Notify me when sats are sent to my Lightning Address"
+      description: "Notify me when sats are sent to my Lightning account"
     ) do %>
       <% f.fields_for :preferences do |p| %>
         <%= p.select :lightning_notify_sats_received, options_for_select([
@@ -15,6 +15,38 @@
         ], selected: @user.preferences[:lightning_notify_sats_received]) %>
       <% end %>
     <% end %>
+    <% if @user.nostr_pubkey.present? %>
+      <%= render FormElements::FieldsetComponent.new(
+        positioning: :horizontal,
+        title: "Zap received",
+        description: "Notify me when someone zaps me on Nostr"
+      ) do %>
+        <% f.fields_for :preferences do |p| %>
+          <%= p.select :lightning_notify_zap_received, options_for_select([
+            ["off", "disabled"],
+            ["Chat (Jabber)", "xmpp"],
+            ["E-Mail", "email"]
+          ], selected: @user.preferences[:lightning_notify_zap_received]) %>
+        <% end %>
+      <% end %>
+    <% end %>
+    <% if @notifications_enabled %>
+      <%= render FormElements::FieldsetToggleComponent.new(
+        field_name: "user[preferences][lightning_notify_only_with_message]",
+        enabled: @user.preferences[:lightning_notify_only_with_message],
+        title: "Ignore transactions without message",
+        description: "Only send notifications when there is a message attached to the payment"
+      ) %>
+      <%= render FormElements::FieldsetComponent.new(
+        title: "Minimum amount",
+        description: "Only send notifications when amount is higher than this"
+      ) do %>
+        <%= f.number_field :lightning_notify_min_sats,
+          name: "user[preferences][lightning_notify_min_sats]",
+          class: "w-full",
+          value: @user.preferences[:lightning_notify_min_sats].to_i %>
+      <% end %>
+    <% end %>
   </ul>
 </section>
 <section>

app/views/settings/_nostr.html.erb

@@ -3,6 +3,7 @@
   <h4 class="mb-0">Public Key</h4>
   <div data-controller="settings--nostr-pubkey"
        data-settings--nostr-pubkey-user-address-value="<%= current_user.address %>"
+       data-settings--nostr-pubkey-site-value="<%= Setting.accounts_domain %>"
        data-settings--nostr-pubkey-shared-secret-value="<%= session[:shared_secret] %>"
        data-settings--nostr-pubkey-pubkey-hex-value="<%= current_user.nostr_pubkey %>">
 

app/views/shared/_sidenav_settings.html.erb

@@ -34,7 +34,7 @@
 <% end %>
 <% if Setting.nostr_enabled %>
 <%= render SidenavLinkComponent.new(
-  name: "Experiments", path: setting_path(:experiments), icon: "science",
+  name: "Nostr", path: setting_path(:nostr), icon: "nostrich-head",
-  active: @settings_section.to_s == "experiments"
+  active: @settings_section.to_s == "nostr"
 ) %>
 <% end %>

app/views/shared/status_unprocessable_entity.html.erb

@@ -0,0 +1,6 @@
+<%= render HeaderCompactComponent.new(title: "422") %>
+
+<%= render MainCompactComponent.new do %>
+  <h2>Unprocessable content</h2>
+  <p>The data provided was malformed. Please go back and try again.</p>
+<% end %>

config/default_preferences.yml

@@ -1,3 +1,6 @@
-lightning_notify_sats_received: disabled # or xmpp, email
+lightning_notify_sats_received: email
-remotestorage_notify_auth_created: email # or xmpp, email
+lightning_notify_zap_received: disabled
+lightning_notify_min_sats: 0
+lightning_notify_only_with_message: false
+remotestorage_notify_auth_created: email
 xmpp_exchange_contacts_with_invitees: true

config/initializers/devise.rb

@@ -27,7 +27,6 @@ Devise.setup do |config|
   config.ldap_auth_password_builder = Proc.new() { |new_password|
     salt      = SecureRandom.hex(32)
     hashed_pw = Base64.strict_encode64(Digest::SHA512.digest(new_password + salt) + salt)
-    puts '{SSHA512}' + hashed_pw
     '{SSHA512}' + hashed_pw
   }
 

config/routes.rb

@@ -1,7 +1,14 @@
 require 'sidekiq/web'
 
 Rails.application.routes.draw do
-  devise_for :users, controllers: { confirmations: 'users/confirmations' }
+  devise_for :users, controllers: {
+    confirmations: 'users/confirmations',
+    sessions: 'users/sessions'
+  }
+
+  devise_scope :user do
+    post 'users/nostr_login', to: 'users/sessions#nostr_login'
+  end
 
   get 'welcome', to: 'welcome#index'
   get 'check_your_email', to: 'welcome#check_your_email'
@@ -12,8 +19,12 @@ Rails.application.routes.draw do
 
   namespace :contributions do
     root to: 'donations#index'
+    resources :donations, only: ['index', 'create'] do
+      member do
+        get 'confirm_btcpay'
+      end
+    end
     get 'projects', to: 'projects#index'
-    resources :donations, only: ['index']
   end
 
   resources :invitations, only: ['index', 'show', 'create', 'destroy']

config/sidekiq.yml

@@ -2,3 +2,5 @@
 :queues:
   - default
   - mailers
+  - remotestorage
+  - nostr

db/migrate/20240214115058_change_donation_amounts_and_currency.rb

@@ -0,0 +1,9 @@
+class ChangeDonationAmountsAndCurrency < ActiveRecord::Migration[7.1]
+  def change
+    rename_column :donations, :amount_usd, :fiat_amount
+    add_column :donations, :fiat_currency, :string, default: "USD"
+    remove_column :donations, :amount_eur, :integer
+
+    Donation.update_all(fiat_currency: 'USD')
+  end
+end

db/migrate/20240214121049_add_new_donation_fields.rb

@@ -0,0 +1,7 @@
+class AddNewDonationFields < ActiveRecord::Migration[7.1]
+  def change
+    add_column :donations, :donation_method, :string
+    add_column :donations, :payment_method, :string, default: nil
+    add_column :donations, :btcpay_invoice_id, :string, default: nil
+  end
+end

db/migrate/20240216124640_add_payment_status_to_donations.rb

@@ -0,0 +1,8 @@
+class AddPaymentStatusToDonations < ActiveRecord::Migration[7.1]
+  def change
+    add_column :donations, :payment_status, :string, default: nil
+    add_index :donations, :payment_status
+
+    Donation.completed.update_all payment_status: "settled"
+  end
+end

db/migrate/20240316153558_remove_nostr_pubkey_from_users.rb

@@ -0,0 +1,5 @@
+class RemoveNostrPubkeyFromUsers < ActiveRecord::Migration[7.1]
+  def change
+    remove_column :users, :nostr_pubkey, :string
+  end
+end

db/migrate/20240422171653_create_zaps.rb

@@ -0,0 +1,13 @@
+class CreateZaps < ActiveRecord::Migration[7.1]
+  def change
+    create_table :zaps do |t|
+      t.references :user, null: false, foreign_key: true
+      t.json :request
+      t.json :receipt, default: nil
+      t.text :payment_request
+      t.bigint :amount
+
+      t.timestamps
+    end
+  end
+end