Merge pull request 'web-push-permissions' (#67) from web-push-permissions into master

Reviewed-on: https://gitea.anomalistdesign.com/trent_larson/crowd-funder-for-time-pwa/pulls/67

.gitignore

@@ -4,6 +4,7 @@ node_modules
 signature.bin
 *.pem
 verified.txt
+myenv
 
 *~
 # local env files

additional-scripts.js

@@ -0,0 +1,30 @@
+
+
+self.addEventListener("push", function (event) {
+  let payload;
+  if (event.data) {
+    payload = JSON.parse(event.data.text());
+  }
+
+  const title = payload ? payload.title : "Custom Title";
+  const options = {
+    body: payload ? payload.body : "Custom body text",
+    icon: payload ? payload.icon : "icon.png",
+    badge: payload ? payload.badge : "badge.png",
+  };
+
+  event.waitUntil(self.registration.showNotification(title, options));
+});
+
+
+self.addEventListener('message', function(event) {
+  const data = event.data;
+    
+  switch (data.command) {
+    case 'account':
+      break;
+    
+    default:
+      console.log('Unknown command:', data.command);
+  }
+});

src/App.vue

@@ -162,17 +162,22 @@
 
                 <button
                   class="block w-full text-center text-md font-bold uppercase bg-blue-600 text-white px-2 py-2 rounded-md mb-2"
+                  @click="
+                    close(notification.id);
+                    turnOnNotifications();
+                  "
                 >
                   Turn on Notifications
                 </button>
                 <div class="grid grid-cols-2 gap-2">
                   <button
-                    @click="close(notification.id)"
+                    @click="maybeLater(notification.id)"
                     class="block w-full text-center text-md font-bold uppercase bg-slate-600 text-white px-2 py-2 rounded-md"
                   >
                     Maybe Later
                   </button>
                   <button
+                    @click="never(notification.id)"
                     class="block w-full text-center text-md font-bold uppercase bg-rose-600 text-white px-2 py-2 rounded-md"
                   >
                     Never
@@ -254,4 +259,170 @@
 
 <style></style>
 
-<script lang="ts"></script>
+<script lang="ts">
+import { Vue, Component } from "vue-facing-decorator";
+import axios from "axios";
+
+@Component
+export default class App extends Vue {
+  b64 = "";
+  mounted() {
+    axios
+      .get("https://timesafari-pwa.anomalistlabs.com/web-push/vapid")
+      .then((response) => {
+        this.b64 = response.data.vapidKey;
+        console.log(this.b64);
+      })
+      .catch((error) => {
+        console.error("API error", error);
+      });
+  }
+
+
+  private askPermission(): Promise<NotificationPermission> {
+    // Check if Notifications are supported
+    if (!("Notification" in window)) {
+      alert("This browser does not support notifications.");
+      return Promise.reject("This browser does not support notifications.");
+    }
+
+    // Check existing permissions
+    if (Notification.permission === "granted") {
+      return Promise.resolve("granted");
+    }
+
+    // Request permission
+    return new Promise((resolve, reject) => {
+      const permissionResult = Notification.requestPermission((result) => {
+        resolve(result);
+      });
+
+      if (permissionResult) {
+        permissionResult.then(resolve, reject);
+      }
+    }).then((permissionResult) => {
+      console.log("Permission result:", permissionResult);
+
+      if (permissionResult !== "granted") {
+        alert("We need notification permission to provide certain features.");
+        return Promise.reject("We weren't granted permission.");
+      }
+
+      return permissionResult;
+    });
+  }
+
+
+  async turnOnNotifications() {
+    return this.askPermission()
+      .then((permission) => {
+        console.log("Permission granted:", permission);
+
+        // Call the function and handle promises
+        this.subscribeToPush()
+          .then(() => {
+            console.log("Subscribed successfully.");
+            // Assuming the subscription object is available
+            return navigator.serviceWorker.ready;
+          })
+          .then((registration) => {
+            // Fetch the existing subscription object from the registration
+            return registration.pushManager.getSubscription();
+          })
+          .then((subscription) => {
+            if (subscription) {
+              console.log(subscription);
+              return this.sendSubscriptionToServer(subscription);
+            } else {
+              throw new Error("Subscription object is not available.");
+            }
+          })
+          .then(() => {
+            console.log("Subscription data sent to server.");
+          })
+          .catch((error) => {
+            console.error(
+              "Subscription or server communication failed:",
+              error,
+            );
+          });
+      })
+      .catch((error) => {
+        console.error("An error occurred:", error);
+        // Handle error appropriately here
+      });
+  }
+
+  // Function to convert URL base64 to Uint8Array
+  private urlBase64ToUint8Array(base64String: string): Uint8Array {
+    const padding = "=".repeat((4 - (base64String.length % 4)) % 4);
+    const base64 = (base64String + padding)
+      .replace(/-/g, "+")
+      .replace(/_/g, "/");
+    const rawData = window.atob(base64);
+    const outputArray = new Uint8Array(rawData.length);
+
+    for (let i = 0; i < rawData.length; ++i) {
+      outputArray[i] = rawData.charCodeAt(i);
+    }
+    return outputArray;
+  }
+
+  // The subscribeToPush method
+  private subscribeToPush(): Promise<void> {
+    return new Promise<void>((resolve, reject) => {
+      if ("serviceWorker" in navigator && "PushManager" in window) {
+        const applicationServerKey = this.urlBase64ToUint8Array(this.b64);
+        const options: PushSubscriptionOptions = {
+          userVisibleOnly: true,
+          applicationServerKey: applicationServerKey,
+        };
+        console.log(options);
+
+        navigator.serviceWorker.ready
+          .then((registration) => {
+            return registration.pushManager.subscribe(options);
+          })
+          .then((subscription) => {
+            console.log("Push subscription successful:", subscription);
+            resolve();
+          })
+          .catch((error) => {
+            console.error("Push subscription failed:", error, options);
+            reject(error);
+          });
+      } else {
+        const errorMsg = "Push messaging is not supported";
+        console.warn(errorMsg);
+        reject(new Error(errorMsg));
+      }
+    });
+  }
+
+  private sendSubscriptionToServer(
+    subscription: PushSubscription,
+  ): Promise<void> {
+    console.log(subscription);
+    return fetch("/web-push/subscribe", {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/json",
+      },
+      body: JSON.stringify(subscription),
+    }).then((response) => {
+      if (!response.ok) {
+        throw new Error("Failed to send subscription to server");
+      }
+      console.log("Subscription sent to server successfully.");
+    });
+  }
+
+  never(ID: string) {
+    alert(ID);
+  }
+
+  maybeLater(ID: string) {
+    alert(ID);
+  }
+}
+</script>

src/constants/app.ts

@@ -4,7 +4,7 @@
  * See also ../libs/veramo/setup.ts
  */
 export enum AppString {
-  APP_NAME = "Time Safari",
+  APP_NAME = "TimeSafari",
 
   PROD_ENDORSER_API_SERVER = "https://api.endorser.ch",
   TEST_ENDORSER_API_SERVER = "https://test-api.endorser.ch",

src/db/index.ts

@@ -9,59 +9,39 @@ import {
 } from "./tables/settings";
 import { AppString } from "@/constants/app";
 
-// a separate DB because the seed is super-sensitive data
-type SensitiveTables = {
-  accounts: Table<Account>;
-};
-
+// Define types for tables that hold sensitive and non-sensitive data
+type SensitiveTables = { accounts: Table<Account> };
 type NonsensitiveTables = {
   contacts: Table<Contact>;
   settings: Table<Settings>;
 };
 
-/**
- * In order to make the next line be acceptable, the program needs to have its linter suppress a rule:
- *   https://typescript-eslint.io/rules/no-unnecessary-type-constraint/
- *
- * and change *any* to *unknown*
- *
- *   https://9to5answer.com/how-to-bypass-warning-unexpected-any-specify-a-different-type-typescript-eslint-no-explicit-any
- */
+// Using 'unknown' instead of 'any' for stricter typing and to avoid TypeScript warnings
 export type SensitiveDexie<T extends unknown = SensitiveTables> = BaseDexie & T;
-export const accountsDB = new BaseDexie("TimeSafariAccounts") as SensitiveDexie;
-const SensitiveSchemas = Object.assign({}, AccountsSchema);
-
 export type NonsensitiveDexie<T extends unknown = NonsensitiveTables> =
   BaseDexie & T;
-export const db = new BaseDexie("TimeSafari") as NonsensitiveDexie;
-const NonsensitiveSchemas = Object.assign({}, ContactsSchema, SettingsSchema);
 
-/**
- * Needed to enable a special webpack setting to allow *await* below:
- *   https://stackoverflow.com/questions/72474803/error-the-top-level-await-experiment-is-not-enabled-set-experiments-toplevelaw
- */
+// Initialize Dexie databases for sensitive and non-sensitive data
+export const accountsDB = new BaseDexie("TimeSafariAccounts") as SensitiveDexie;
+const SensitiveSchemas = { ...AccountsSchema };
 
-/**
- * Create password and place password in localStorage.
- *
- * It's good practice to keep the data encrypted at rest, so we'll do that even
- * if the secret is stored right next to the app.
- */
+export const db = new BaseDexie("TimeSafari") as NonsensitiveDexie;
+const NonsensitiveSchemas = { ...ContactsSchema, ...SettingsSchema };
+
+// Manage the encryption key. If not present in localStorage, create and store it.
 const secret =
   localStorage.getItem("secret") || Encryption.createRandomEncryptionKey();
+if (!localStorage.getItem("secret")) localStorage.setItem("secret", secret);
 
-if (localStorage.getItem("secret") == null) {
-  localStorage.setItem("secret", secret);
-}
-
+// Apply encryption to the sensitive database using the secret key
 encrypted(accountsDB, { secretKey: secret });
-accountsDB.version(1).stores(SensitiveSchemas);
 
+// Define the schema for our databases
+accountsDB.version(1).stores(SensitiveSchemas);
 db.version(1).stores(NonsensitiveSchemas);
 
-// initialize, a la https://dexie.org/docs/Tutorial/Design#the-populate-event
-db.on("populate", function () {
-  // ensure there's an initial entry for settings
+// Event handler to initialize the non-sensitive database with default settings
+db.on("populate", () => {
   db.settings.add({
     id: MASTER_SETTINGS_KEY,
     apiServer: AppString.DEFAULT_ENDORSER_API_SERVER,

src/db/tables/settings.ts

@@ -1,29 +1,46 @@
+/**
+ * BoundingBox type describes the geographical bounding box coordinates.
+ */
 export type BoundingBox = {
-  eastLong: number;
-  maxLat: number;
-  minLat: number;
-  westLong: number;
+  eastLong: number; // Eastern longitude
+  maxLat: number; // Maximum (Northernmost) latitude
+  minLat: number; // Minimum (Southernmost) latitude
+  westLong: number; // Western longitude
 };
 
-// a singleton
+/**
+ * Settings type encompasses user-specific configuration details.
+ */
 export type Settings = {
-  id: number; // there's only one entry: MASTER_SETTINGS_KEY
+  id: number; // Only one entry using MASTER_SETTINGS_KEY
+  activeDid?: string; // Active Decentralized ID
+  apiServer?: string; // API server URL
+  firstName?: string; // User's first name
+  lastName?: string; // User's last name
+  lastViewedClaimId?: string; // Last viewed claim ID
+  lastNotifiedClaimId?: string; // Last notified claim ID
+
+  // Array of named search boxes defined by bounding boxes
   
-  activeDid?: string;
-  apiServer?: string;
-  firstName?: string;
-  isRegistered?: boolean;
-  lastName?: string; // deprecated, pre v 0.1.3
-  lastViewedClaimId?: string;
   searchBoxes?: Array<{
     name: string;
     bbox: BoundingBox;
   }>;
-  showContactGivesInline?: boolean;
+
+  showContactGivesInline?: boolean; // Display contact inline or not
+  vapid?: string; // VAPID (Voluntary Application Server Identification) field for web push
+  reminderTime?: number; // Time in milliseconds since UNIX epoch for reminders
+  reminderOn?: boolean; // Toggle to enable or disable reminders
 };
 
+/**
+ * Schema for the Settings table in the database.
+ */
 export const SettingsSchema = {
   settings: "id",
 };
 
+/**
+ * Constants.
+ */
 export const MASTER_SETTINGS_KEY = 1;

vue.config.js

@@ -11,5 +11,8 @@ module.exports = defineConfig({
     iconPaths: {
       faviconSVG: "img/icons/safari-pinned-tab.svg",
     },
+    workboxOptions: {
+      importScripts: ["additional-scripts.js"],
+    },
   },
 });