Add specs for lndhub webhook

spec/factories/devise.rb

@@ -2,8 +2,10 @@ FactoryBot.define do
   factory :user do
     id { 1 }
     cn { "jimmy" }
+    ou { "kosmos.org" }
     email { "jimmy@example.com" }
     password { "dis-muh-password" }
     confirmed_at { DateTime.now }
+    ln_account { "123456" }
   end
 end

spec/fixtures/lndhub/incoming.json

@@ -1,10 +1,10 @@
 {
   "id": 58,
   "type": "incoming",
-  "user_login": "689e27b237798b41d123",
-  "amount": 100,
+  "user_login": "123456abcdef",
+  "amount": 12300,
   "fee": 0,
-  "memo": "Sats for jimmy@kosmos.org: \"Buy you some beers\"",
+  "memo": "Buy you some beers",
   "description_hash": "106af234beebd478206535486051b4f212bd31d2ed0f93e3efce7b5e7603d743",
   "payment_request": "lnbc1u1p3mull3pp5qw4x46ew6kjknudypyjsg8maw935tr5kkuz7t6h7pugp3pt4msyqhp5zp40yd97a028sgr9x4yxq5d57gft6vwja58e8cl0eea4uasr6apscqzpgxqyz5vqsp53m2n8h6yeflgukv5fhwm802kur6un9w8nvycl7auk67w5g2u008q9qyyssqml8rfmxyvp32qd5939qx7uu0w6ppjuujlpwsrz28m9u0dzp799hz5j72w0xm8pg97hd4hdvwh9zxaw2hewnnmzewvc550f9y3qsfaegphmk0mu",
   "destination_pubkey_hex": "024cd3be18617f39cf645851e3ba63f51fc13f0bb09e3bb25e6fd4de556486d946",

spec/fixtures/lndhub/outgoing.json

@@ -0,0 +1,19 @@
+{
+  "id": 59,
+  "type": "outgoing",
+  "user_login": "123456abcdef",
+  "amount": 12400,
+  "fee": 10,
+  "memo": "Top up mobile phone",
+  "description_hash": "106af234beebd478206535486051b4f212bd31d2ed0f93e3efce7b5e7603d743",
+  "payment_request": "lnbc1u1p3mull3pp5qw4x46ew6kjknudypyjsg8maw935tr5kkuz7t6h7pugp3pt4msyqhp5zp40yd97a028sgr9x4yxq5d57gft6vwja58e8cl0eea4uasr6apscqzpgxqyz5vqsp53m2n8h6yeflgukv5fhwm802kur6un9w8nvycl7auk67w5g2u008q9qyyssqml8rfmxyvp32qd5939qx7uu0w6ppjuujlpwsrz28m9u0dzp799hz5j72w0xm8pg97hd4hdvwh9zxaw2hewnnmzewvc550f9y3qsfaegphmk0mu",
+  "destination_pubkey_hex": "024cd3be18617f39cf645851e3ba63f51fc13f0bb09e3bb25e6fd4de556486d946",
+  "r_hash": "03aa6aeb2ed5a569f1a40925041f7d7163458e96b705e5eafe0f10188575dc08",
+  "preimage": "3539663535656537343331663432653165396430623966633664656664646563",
+  "keysend": false,
+  "state": "settled",
+  "created_at": "2023-01-11T09:22:57.546364Z",
+  "expires_at": "2023-01-12T09:22:57.547209Z",
+  "updated_at": "2023-01-11T09:22:58.046236131Z",
+  "settled_at": "2023-01-11T09:22:58.046232174Z"
+}

spec/requests/webhooks_spec.rb

@@ -10,11 +10,68 @@ RSpec.describe "Webhooks", type: :request do
     end
 
     context "IP allowed" do
-      it "returns a 403 status" do
+      before do
         ENV['WEBHOOKS_ALLOWED_IPS'] = '127.0.0.1'
+      end
+
+      it "does not return a 403 status" do
         post "/webhooks/lndhub"
+        expect(response).not_to have_http_status(:forbidden)
+      end
+    end
+  end
+
+  # Webhooks from lndhub.go
+  describe "/webhooks/lndhub" do
+    before do
+      ENV['WEBHOOKS_ALLOWED_IPS'] = '127.0.0.1'
+    end
+
+    describe "Payload cannot be processed as JSON" do
+      before do
+        post "/webhooks/lndhub", params: "Foo"
+      end
+
+      it "returns a 422 status" do
         expect(response).to have_http_status(:unprocessable_entity)
       end
     end
+
+    describe "Valid payload for outgoing payment" do
+      let(:payload) { JSON.parse(File.read(File.expand_path("../fixtures/lndhub/outgoing.json", File.dirname(__FILE__)))) }
+
+      before do
+        post "/webhooks/lndhub", params: payload.to_json
+      end
+
+      it "returns a 204 status" do
+        expect(response).to have_http_status(:no_content)
+      end
+    end
+
+    describe "Valid payload for incoming payment" do
+      let(:user) { create :user, ln_account: "123456abcdef" }
+      let(:payload) { JSON.parse(File.read(File.expand_path("../fixtures/lndhub/incoming.json", File.dirname(__FILE__)))) }
+
+      before do
+        user.save! #FIXME this should not be necessary
+        post "/webhooks/lndhub", params: payload.to_json
+      end
+
+      it "returns a 200 status" do
+        expect(response).to have_http_status(:ok)
+      end
+
+      it "sends an XMPP message to the account owner's JID" do
+        expect(enqueued_jobs.size).to eq(1)
+
+        msg = enqueued_jobs.first['arguments'].first
+        expect(msg["type"]).to eq('normal')
+        expect(msg["from"]).to eq('kosmos.org')
+        expect(msg["to"]).to eq(user.address)
+        expect(msg["subject"]).to eq('Sats received!')
+        expect(msg["body"]).to match(/^12300 sats received/)
+      end
+    end
   end
 end