feat: allow the base URL of the application to be set for the API

lib/pact_broker/api/resources/base_resource.rb

@@ -59,7 +59,7 @@ def identifier_from_path
         alias_method :path_info, :identifier_from_path
 
         def base_url
-          request.base_uri.to_s.chomp('/')
+          PactBroker.configuration.base_url || request.base_uri.to_s.chomp('/')
         end
 
         def charsets_provided

lib/pact_broker/app.rb

@@ -4,7 +4,6 @@
 require 'pact_broker/logging/default_formatter'
 require 'rack-protection'
 require 'rack/hal_browser'
-require 'rack/pact_broker/store_base_url'
 require 'rack/pact_broker/add_pact_broker_version_header'
 require 'rack/pact_broker/convert_file_extension_to_accept_header'
 require 'rack/pact_broker/database_transaction'
@@ -159,7 +158,6 @@ def configure_middleware
       end
       @app_builder.use Rack::PactBroker::InvalidUriProtection
       @app_builder.use Rack::PactBroker::ResetThreadData
-      @app_builder.use Rack::PactBroker::StoreBaseURL
       @app_builder.use Rack::PactBroker::AddPactBrokerVersionHeader
       @app_builder.use Rack::PactBroker::AddVaryHeader
       @app_builder.use Rack::Static, :urls => ["/stylesheets", "/css", "/fonts", "/js", "/javascripts", "/images"], :root => PactBroker.project_root.join("public")

lib/pact_broker/configuration.rb

@@ -33,7 +33,7 @@ class Configuration
       :seed_example_data
     ]
 
-    attr_accessor :log_dir, :database_connection, :auto_migrate_db, :auto_migrate_db_data, :example_data_seeder, :seed_example_data, :use_hal_browser, :html_pact_renderer, :use_rack_protection
+    attr_accessor :base_url, :log_dir, :database_connection, :auto_migrate_db, :auto_migrate_db_data, :example_data_seeder, :seed_example_data, :use_hal_browser, :html_pact_renderer, :use_rack_protection
     attr_accessor :validate_database_connection_config, :enable_diagnostic_endpoints, :version_parser, :sha_generator
     attr_accessor :use_case_sensitive_resource_names, :order_versions_by_date
     attr_accessor :check_for_potential_duplicate_pacticipant_names
@@ -176,10 +176,6 @@ def enable_badge_resources= enable_badge_resources
       self.enable_public_badge_access = enable_badge_resources
     end
 
-    def base_url
-      ENV['PACT_BROKER_BASE_URL']
-    end
-
     def save_to_database
       # Can't require a Sequel::Model class before the connection has been set
       require 'pact_broker/config/save'

spec/lib/pact_broker/api/resources/base_resource_spec.rb

@@ -4,7 +4,7 @@ module PactBroker
   module Api
     module Resources
       describe BaseResource do
-        let(:request) { double('request', uri: uri).as_null_object }
+        let(:request) { double('request', uri: uri, base_uri: URI("http://example.org/")).as_null_object }
         let(:response) { double('response') }
         let(:uri) { URI('http://example.org/path?query') }
 
@@ -19,6 +19,28 @@ module Resources
             expect(subject.headers['Access-Control-Allow-Methods']).to eq "GET, OPTIONS"
           end
         end
+
+        describe "base_url" do
+          context "when PactBroker.configuration.base_url is not nil" do
+            before do
+              allow(PactBroker.configuration).to receive(:base_url).and_return("http://foo")
+            end
+
+            it "returns the configured base URL" do
+              expect(subject.base_url).to eq "http://foo"
+            end
+          end
+
+          context "when PactBroker.configuration.base_url is nil" do
+            before do
+              allow(PactBroker.configuration).to receive(:base_url).and_return(nil)
+            end
+
+            it "returns the base URL from the request" do
+              expect(subject.base_url).to eq "http://example.org"
+            end
+          end
+        end
       end
 
       ALL_RESOURCES = ObjectSpace.each_object(::Class).select {|klass| klass < BaseResource }