General source code refactoring

src/platform/content-messages.js

@@ -0,0 +1,120 @@
+function createPlatformContentMessages({
+  messageTypes,
+  environment
+}) {
+  const { browser, chrome } = environment;
+  function sendRuntimeMessage(message) {
+    const runtimeApi = typeof browser !== "undefined" ? browser : chrome;
+
+    if (!runtimeApi || !runtimeApi.runtime || !runtimeApi.runtime.sendMessage) {
+      return Promise.reject(new Error("Runtime messaging API unavailable."));
+    }
+
+    if (typeof browser !== "undefined") {
+      return runtimeApi.runtime.sendMessage(message);
+    }
+
+    return new Promise((resolve, reject) => {
+      runtimeApi.runtime.sendMessage(message, (response) => {
+        const lastError = runtimeApi.runtime.lastError;
+
+        if (lastError) {
+          reject(new Error(lastError.message));
+          return;
+        }
+
+        resolve(response);
+      });
+    });
+  }
+
+  function getXsrfTokenFromExtensionCookies() {
+    const runtimeApi = typeof browser !== "undefined" ? browser : chrome;
+
+    if (!runtimeApi || !runtimeApi.runtime || !runtimeApi.runtime.sendMessage) {
+      return Promise.resolve({
+        token: "",
+        cookieName: "",
+        source: "unavailable cookies API",
+        error: "Runtime messaging API unavailable."
+      });
+    }
+
+    return new Promise((resolve) => {
+      runtimeApi.runtime.sendMessage({
+        type: messageTypes.getXsrfToken
+      }, (response) => {
+        const lastError = runtimeApi.runtime.lastError;
+
+        if (lastError) {
+          resolve({
+            token: "",
+            cookieName: "",
+            source: "cookies API",
+            matchedCookieNames: [],
+            lookupDetails: [],
+            error: lastError.message
+          });
+          return;
+        }
+
+        resolve({
+          token: response && response.ok ? response.token : "",
+          cookieName: response && response.ok ? response.cookieName : "",
+          source: "cookies API",
+          matchedCookieNames: response && response.matchedCookieNames ? response.matchedCookieNames : [],
+          lookupDetails: response && response.lookupDetails ? response.lookupDetails : [],
+          error: response && response.error ? response.error : ""
+        });
+      });
+    });
+  }
+
+  function refreshXsrfCookie(reason) {
+    const runtimeApi = typeof browser !== "undefined" ? browser : chrome;
+
+    if (!runtimeApi || !runtimeApi.runtime || !runtimeApi.runtime.sendMessage) {
+      return Promise.resolve({
+        ok: false,
+        refreshed: false,
+        cookieName: "",
+        durationMs: 0,
+        reason,
+        error: "Runtime messaging API unavailable."
+      });
+    }
+
+    return new Promise((resolve) => {
+      runtimeApi.runtime.sendMessage({
+        type: messageTypes.refreshXsrfCookie
+      }, (response) => {
+        const lastError = runtimeApi.runtime.lastError;
+
+        if (lastError) {
+          resolve({
+            ok: false,
+            refreshed: false,
+            cookieName: "",
+            durationMs: 0,
+            reason,
+            error: lastError.message
+          });
+          return;
+        }
+
+        resolve({
+          ...(response || {
+            ok: false,
+            refreshed: false,
+            cookieName: "",
+            durationMs: 0,
+            error: "Empty refresh response."
+          }),
+          reason
+        });
+      });
+    });
+  }
+
+  return { sendRuntimeMessage, getXsrfTokenFromExtensionCookies, refreshXsrfCookie };
+}