Inspect error message for challenge token keyword

- If this is part of the error message, we want to parse out the
  challenge token and tag the error with this token so that we can set
up a Sentry filter to send this error to a specific channel whose only
responsibility will be to alert a dev they need to manually solve a
captcha a run signal-cli submitRateLimitChallenge --challenge-token
<TOKEN> --captcha <CAPTCHA>

app/adapters/signal_adapter/bad_request_error.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+module SignalAdapter
+  class BadRequestError < StandardError
+    def initialize(error_code:, message:)
+      super("Message was not delivered with error code #{error_code} and message #{message}")
+    end
+  end
+end

app/adapters/signal_adapter/outbound/text.rb

@@ -19,14 +19,7 @@ def perform(recipient:, text:)
         response = Net::HTTP.start(url.host, url.port) do |http|
           http.request(request)
         end
-        response.value # may raise exception
-      rescue Net::HTTPClientException => e
-        ErrorNotifier.report(e, context: {
-                               code: e.response.code,
-                               message: e.response.message,
-                               headers: e.response.to_hash,
-                               body: e.response.body
-                             })
+        handle_response(response)
       end
 
       def data
@@ -36,6 +29,32 @@ def data
           message: text
         }
       end
+
+      def handle_response(response)
+        case response.code.to_i
+        when 200
+          # TODO: Do something on success. For example, mark the message as delivered?
+          # Or should we use deliver receipts as the source of truth.
+          Rails.logger.debug 'Great!'
+        when 400..599
+          error_message = JSON.parse(response.body)['error']
+          exception = SignalAdapter::BadRequestError.new(error_code: response.code, message: error_message)
+          context = {
+            code: response.code,
+            message: response.message,
+            headers: response.to_hash,
+            body: error_message
+          }
+          tags = if error_message.match?(/with challenge token /)
+                   regex = /"(.*?)"/
+                   challenge_token = error_message.split('with challenge token ').last.match(regex).to_s.split(/"/).last
+                   { challenge_token: challenge_token }
+                 else
+                   {}
+                 end
+          ErrorNotifier.report(exception, context: context, tags: tags)
+        end
+      end
     end
   end
 end

docker-compose.yml

@@ -26,7 +26,7 @@ services:
       - postgres_data:/var/lib/postgresql/data
 
   signal:
-    image: bbernhard/signal-cli-rest-api:0.67
+    image: tactilenews/signal-rest-api:full_error
     environment:
       - USE_NATIVE=0
         #- AUTO_RECEIVE_SCHEDULE=0 22 * * * #enable this parameter on demand (see description below)