enable export to codeharbor

app/services/exercise_service/push_external.rb

@@ -0,0 +1,28 @@
+# frozen_string_literal: true
+
+module ExerciseService
+  class PushExternal < ServiceBase
+    CODEHARBOR_PUSH_LINK = 'http://localhost:3001/import_exercise'
+    def initialize(zip:, codeharbor_link:)
+      @zip = zip
+      @codeharbor_link = codeharbor_link
+    end
+
+    def execute
+      oauth2_client = OAuth2::Client.new(@codeharbor_link.client_id, @codeharbor_link.client_secret, site: CODEHARBOR_PUSH_LINK)
+      oauth2_token = @codeharbor_link[:oauth2token]
+      token = OAuth2::AccessToken.from_hash(oauth2_client, access_token: oauth2_token)
+      body = @zip.string
+      begin
+        token.post(
+          CODEHARBOR_PUSH_LINK,
+          body: body,
+          headers: {'Content-Type' => 'application/zip', 'Content-Length' => body.length.to_s}
+        )
+        return nil
+      rescue StandardError => e
+        return e
+      end
+    end
+  end
+end