Google Drive Watch 🕵🏻‍♂️

Author: labnol

google-apps-script/google-drive-watch/README.md

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+# Google Drive File Watch 🐢
+
+[Monitor Deleted Files in Google Drive](https://www.labnol.org/google-drive-monitor-201026)

google-apps-script/google-drive-watch/appsscript.json

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+{
+  "timeZone": "Asia/Kolkata",
+  "dependencies": {
+    "enabledAdvancedServices": [
+      {
+        "userSymbol": "Drive",
+        "serviceId": "drive",
+        "version": "v2"
+      }
+    ]
+  },
+  "exceptionLogging": "STACKDRIVER",
+  "oauthScopes": [
+    "https://www.googleapis.com/auth/drive.metadata.readonly",
+    "https://www.googleapis.com/auth/script.send_mail"
+  ],
+  "runtimeVersion": "V8"
+}

google-apps-script/google-drive-watch/code.js

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+/**
+ *  Watch Google Drive Files
+ *  Author: amit@labnol.org
+ *  Web: https://digitalinspiration.com/
+ *  MIT License
+ * */
+
+// Enter the email address for email notification
+const EMAIL = "amit@labnol.org";
+
+// How frequently should the watcher run? Put 2 for running every 2 days.
+const RUNNING_FREQUENCY = 1;
+
+// At what hour of the day should the script run?
+const RUN_AT_HOUR = 10;
+
+const enableDriveWatch = () => {
+  const triggerName = "watchGoogleDrive";
+  const [trigger = null] = ScriptApp.getProjectTriggers().filter((t) => t.getHandlerFunction() === triggerName);
+  if (trigger === null) {
+    ScriptApp.newTrigger(triggerName).timeBased().everyDays(1).atHour(RUN_AT_HOUR).create();
+  }
+};
+
+const disableDriveWatch = () => {
+  ScriptApp.getProjectTriggers().map((trigger) => {
+    ScriptApp.deleteTrigger(trigger);
+  });
+};
+
+const checkChangedFiles_ = (items) => {
+  const cacheStore = CacheService.getScriptCache();
+  const processed = (cacheStore.get("cache") || "").split(",");
+  cacheStore.put("cache", items.map(({ id }) => id).join(","), 21600);
+  return items
+    .map(({ file }) => file)
+    .filter(({ id, alternateLink, title }) => id && alternateLink && title)
+    .filter(({ ownedByMe }) => ownedByMe)
+    .filter(({ id }) => processed.indexOf(id) === -1)
+    .filter(({ labels: { trashed = null } = {} }) => trashed === true)
+    .map((file) => {
+      const {
+        iconLink = "",
+        alternateLink = "",
+        title = "",
+        lastModifyingUser = {},
+        createdDate = "",
+        fileSize = "",
+      } = file;
+
+      const { emailAddress = "", displayName = "", picture: { url = "" } = {} } = lastModifyingUser;
+      const fileDate = createdDate ? Utilities.formatDate(new Date(createdDate), "IST", "MMMMM dd, YYYY") : "";
+
+      return [
+        iconLink ? `<img src="${iconLink}" height=16 />` : "",
+        `<a href="${alternateLink}">${title}</a>`,
+        fileSize ? `(${Math.round(fileSize / 1000)} Kb)` : "",
+        fileDate ? `Created: ${fileDate}` : "",
+        `${displayName || emailAddress}`,
+        url ? `<img src="${url}" height=16 />` : "",
+      ];
+    });
+};
+
+const sendEmail_ = (rows = []) => {
+  const { length } = rows;
+  if (length === 0) return;
+
+  const html = [
+    `<table border="0" cellpadding="8" cellspacing="4" style="font-size:12px">`,
+    rows
+      .map((row) => row.map((td) => `<td>${td}</td>`).join(""))
+      .map((tr) => `<tr>${tr}</tr>`)
+      .join(""),
+    `</table>`,
+    `<p style="background:#ffffe0; padding:12px;font-size:12px;display:inline-block">`,
+    `<a href="https://www.labnol.org/google-drive-monitor-201026">Drive Watch</a> is developed by`,
+    ` <a href="https://digitalinspiration.com/">Digital Inspiration</a></p>`,
+  ];
+  MailApp.sendEmail({
+    to: EMAIL,
+    name: "Drive Watch",
+    subject: `[Drive Watch] ${rows.length} files were deleted in your Google Drive`,
+    htmlBody: html.join(""),
+  });
+};
+
+const watchGoogleDrive = () => {
+  const propertyStore = PropertiesService.getScriptProperties();
+
+  const pageToken =
+    propertyStore.getProperty("token") || Drive.Changes.getStartPageToken({ supportsAllDrives: true }).startPageToken;
+
+  const fields =
+    "newStartPageToken,items(file(id,title,labels(trashed),iconLink,mimeType,createdDate,ownedByMe,lastModifyingUser(emailAddress,displayName,picture(url)),alternateLink, fileSize))";
+
+  const { newStartPageToken, items = [] } = Drive.Changes.list({
+    fields,
+    pageToken,
+    includeItemsFromAllDrives: true,
+    pageSize: 100,
+    supportsAllDrives: true,
+  });
+
+  if (newStartPageToken) {
+    propertyStore.setProperty("token", newStartPageToken);
+  }
+
+  if (items.length) {
+    const deletedItems = checkChangedFiles_(items);
+    sendEmail_(deletedItems);
+  }
+};