General source code refactoring

src/auth/content-session.js

@@ -0,0 +1,57 @@
+function createAuthContentSession({
+  messageTypes,
+  AUTH_STATUS,
+  appendBackgroundRequestLog,
+  authSessionState,
+  requestTokenRelay,
+  sendRuntimeMessage,
+  updateAuthBadge
+}) {
+  function requestTokenRelayOnce() {
+    if (!authSessionState.tokenRelayRequest) {
+      authSessionState.authStatus = AUTH_STATUS.pending;
+      updateAuthBadge(authSessionState.authStatus);
+      authSessionState.tokenRelayRequest = requestTokenRelay()
+        .then((token) => {
+          authSessionState.accessToken = token;
+          authSessionState.authStatus = AUTH_STATUS.authenticated;
+          requestConsumerTokenServiceOnce().catch(() => {});
+          return token;
+        })
+        .catch((error) => {
+          authSessionState.accessToken = "";
+          authSessionState.authStatus = AUTH_STATUS.unauthenticated;
+          throw error;
+        })
+        .finally(() => {
+          updateAuthBadge(authSessionState.authStatus);
+        });
+    } else {
+      updateAuthBadge(authSessionState.authStatus);
+    }
+
+    return authSessionState.tokenRelayRequest;
+  }
+
+  function requestConsumerTokenServiceOnce() {
+    if (!authSessionState.consumerTokenServiceRequest) {
+      authSessionState.consumerTokenServiceRequest = sendRuntimeMessage({
+        type: messageTypes.requestConsumerTokenService
+      }).then((response) => {
+        appendBackgroundRequestLog(response && response.debugRequests);
+
+        if (!response || !response.ok) {
+          throw new Error(response && response.error
+            ? response.error
+            : "Unable to load consumer token service.");
+        }
+
+        return response.authorizations;
+      });
+    }
+
+    return authSessionState.consumerTokenServiceRequest;
+  }
+
+  return { requestTokenRelayOnce, requestConsumerTokenServiceOnce };
+}