Initial commit (by create-cloudflare CLI)

Details:
  C3 = create-cloudflare@2.50.2
  project name = gdrive-upload-robot
  package manager = npm@11.2.0
  wrangler = wrangler@4.22.0
  git = 2.45.2.windows.1

.editorconfig

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+# http://editorconfig.org
+root = true
+
+[*]
+indent_style = tab
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.yml]
+indent_style = space

.gitignore

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+# Logs
+
+logs
+_.log
+npm-debug.log_
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+
+report.[0-9]_.[0-9]_.[0-9]_.[0-9]_.json
+
+# Runtime data
+
+pids
+_.pid
+_.seed
+\*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+
+lib-cov
+
+# Coverage directory used by tools like istanbul
+
+coverage
+\*.lcov
+
+# nyc test coverage
+
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+
+bower_components
+
+# node-waf configuration
+
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+
+build/Release
+
+# Dependency directories
+
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+
+web_modules/
+
+# TypeScript cache
+
+\*.tsbuildinfo
+
+# Optional npm cache directory
+
+.npm
+
+# Optional eslint cache
+
+.eslintcache
+
+# Optional stylelint cache
+
+.stylelintcache
+
+# Microbundle cache
+
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+
+.node_repl_history
+
+# Output of 'npm pack'
+
+\*.tgz
+
+# Yarn Integrity file
+
+.yarn-integrity
+
+# dotenv environment variable files
+
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# parcel-bundler cache (https://parceljs.org/)
+
+.cache
+.parcel-cache
+
+# Next.js build output
+
+.next
+out
+
+# Nuxt.js build / generate output
+
+.nuxt
+dist
+
+# Gatsby files
+
+.cache/
+
+# Comment in the public line in if your project uses Gatsby and not Next.js
+
+# https://nextjs.org/blog/next-9-1#public-directory-support
+
+# public
+
+# vuepress build output
+
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+
+.temp
+.cache
+
+# Docusaurus cache and generated files
+
+.docusaurus
+
+# Serverless directories
+
+.serverless/
+
+# FuseBox cache
+
+.fusebox/
+
+# DynamoDB Local files
+
+.dynamodb/
+
+# TernJS port file
+
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+
+.vscode-test
+
+# yarn v2
+
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.\*
+
+# wrangler project
+
+.dev.vars
+.wrangler/

.prettierrc

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+{
+	"printWidth": 140,
+	"semi": true,
+	"singleQuote": true,
+	"useTabs": true
+}

package.json

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+{
+	"devDependencies": {
+		"@cloudflare/vitest-pool-workers": "^0.8.19",
+		"vitest": "~3.2.0",
+		"wrangler": "^4.23.0"
+	},
+	"name": "gdrive-upload-robot",
+	"private": true,
+	"scripts": {
+		"deploy": "wrangler deploy",
+		"dev": "wrangler dev",
+		"start": "wrangler dev",
+		"test": "vitest"
+	},
+	"version": "0.0.0"
+}

src/index.js

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+export default {
+	async fetch(request, env) {
+		if (request.method === 'POST') {
+			const payload = await request.json();
+			if (payload.message && payload.message.document) {
+				await handleDocument(payload.message, env);
+			} else if (payload.message && payload.message.photo) {
+				await handlePhoto(payload.message, env);
+			}
+		}
+		return new Response('OK');
+	},
+};
+
+async function handleDocument(message, env) {
+	const fileId = message.document.file_id;
+	const fileName = message.document.file_name;
+	await uploadToDrive(fileId, fileName, env);
+}
+
+async function handlePhoto(message, env) {
+	const photo = message.photo[message.photo.length - 1]; // Get the highest resolution photo
+	const fileId = photo.file_id;
+	const fileName = `${fileId}.jpg`;
+	await uploadToDrive(fileId, fileName, env);
+}
+
+async function uploadToDrive(fileId, fileName, env) {
+	const botToken = env.TELEGRAM_BOT_TOKEN;
+	const driveFolderId = env.GOOGLE_DRIVE_FOLDER_ID;
+	const adminChatId = env.ADMIN_CHAT_ID;
+	const googleCredentials = JSON.parse(env.GOOGLE_CREDENTIALS);
+
+	// Get file path from Telegram
+	const fileDetailsUrl = `https://api.telegram.org/bot${botToken}/getFile?file_id=${fileId}`;
+	const fileDetailsResponse = await fetch(fileDetailsUrl);
+	const fileDetails = await fileDetailsResponse.json();
+	if (!fileDetails.ok) {
+		await sendMessage(adminChatId, `Error getting file details: ${fileDetails.description}`, botToken);
+		return;
+	}
+	const filePath = fileDetails.result.file_path;
+	const fileUrl = `https://api.telegram.org/file/bot${botToken}/${filePath}`;
+
+	// Download file from Telegram
+	const fileResponse = await fetch(fileUrl);
+	const fileData = await fileResponse.arrayBuffer();
+
+	// Authenticate with Google Drive
+	const jwtToken = await getGoogleAuthToken(googleCredentials);
+
+	// Upload file to Google Drive
+	const uploadUrl = 'https://www.googleapis.com/upload/drive/v3/files?uploadType=multipart';
+	const metadata = {
+		name: fileName,
+		parents: [driveFolderId],
+	};
+
+	const formData = new FormData();
+	formData.append('metadata', new Blob([JSON.stringify(metadata)], { type: 'application/json' }));
+	formData.append('file', new Blob([fileData]));
+
+	const uploadResponse = await fetch(uploadUrl, {
+		method: 'POST',
+		headers: {
+			Authorization: `Bearer ${jwtToken}`,
+		},
+		body: formData,
+	});
+
+	const uploadResult = await uploadResponse.json();
+	if (uploadResult.id) {
+		await sendMessage(adminChatId, `File "${fileName}" uploaded to Google Drive successfully!`, botToken);
+	} else {
+		await sendMessage(adminChatId, `Error uploading file: ${JSON.stringify(uploadResult.error)}`, botToken);
+	}
+}
+
+async function getGoogleAuthToken(credentials) {
+	const header = { alg: 'RS256', typ: 'JWT' };
+	const now = Math.floor(Date.now() / 1000);
+	const payload = {
+		iss: credentials.client_email,
+		scope: 'https://www.googleapis.com/auth/drive',
+		aud: 'https://oauth2.googleapis.com/token',
+		exp: now + 3600,
+		iat: now,
+	};
+
+	const encodedHeader = btoa(JSON.stringify(header)).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
+	const encodedPayload = btoa(JSON.stringify(payload)).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
+	const dataToSign = `${encodedHeader}.${encodedPayload}`;
+
+	const privateKey = await crypto.subtle.importKey(
+		'pkcs8',
+		str2ab(atob(credentials.private_key.replace('-----BEGIN PRIVATE KEY-----\n', '').replace('\n-----END PRIVATE KEY-----\n', ''))),
+		{ name: 'RSASSA-PKCS1-v1_5', hash: 'SHA-256' },
+		false,
+		['sign']
+	);
+
+	const signature = await crypto.subtle.sign('RSASSA-PKCS1-v1_5', privateKey, str2ab(dataToSign));
+	const encodedSignature = btoa(ab2str(signature)).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
+
+	const jwt = `${dataToSign}.${encodedSignature}`;
+
+	const tokenResponse = await fetch('https://oauth2.googleapis.com/token', {
+		method: 'POST',
+		headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
+		body: `grant_type=urn:ietf:params:oauth:grant-type:jwt-bearer&assertion=${jwt}`,
+	});
+
+	const tokenData = await tokenResponse.json();
+	return tokenData.access_token;
+}
+
+async function sendMessage(chatId, text, botToken) {
+	const url = `https://api.telegram.org/bot${botToken}/sendMessage?chat_id=${chatId}&text=${encodeURIComponent(text)}`;
+	await fetch(url);
+}
+
+function str2ab(str) {
+	const buf = new ArrayBuffer(str.length);
+	const bufView = new Uint8Array(buf);
+	for (let i = 0, strLen = str.length; i < strLen; i++) {
+		bufView[i] = str.charCodeAt(i);
+	}
+	return buf;
+}
+
+function ab2str(buf) {
+	return String.fromCharCode.apply(null, new Uint8Array(buf));
+}

vitest.config.js

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+import { defineWorkersConfig } from '@cloudflare/vitest-pool-workers/config';
+
+export default defineWorkersConfig({
+	test: {
+		poolOptions: {
+			workers: {
+				wrangler: { configPath: './wrangler.jsonc' },
+			},
+		},
+	},
+});

wrangler.jsonc

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+/**
+ * For more details on how to configure Wrangler, refer to:
+ * https://developers.cloudflare.com/workers/wrangler/configuration/
+ */
+{
+	"$schema": "node_modules/wrangler/config-schema.json",
+	"compatibility_date": "2025-07-03",
+	"main": "src/index.js",
+	"name": "gdrive-upload-robot",
+	"observability": {
+		"enabled": true
+	}
+	/**
+	 * Smart Placement
+	 * Docs: https://developers.cloudflare.com/workers/configuration/smart-placement/#smart-placement
+	 */
+	// "placement": { "mode": "smart" },
+	/**
+	 * Bindings
+	 * Bindings allow your Worker to interact with resources on the Cloudflare Developer Platform, including
+	 * databases, object storage, AI inference, real-time communication and more.
+	 * https://developers.cloudflare.com/workers/runtime-apis/bindings/
+	 */
+	/**
+	 * Environment Variables
+	 * https://developers.cloudflare.com/workers/wrangler/configuration/#environment-variables
+	 */
+	// "vars": { "MY_VARIABLE": "production_value" },
+	/**
+	 * Note: Use secrets to store sensitive data.
+	 * https://developers.cloudflare.com/workers/configuration/secrets/
+	 */
+	/**
+	 * Static Assets
+	 * https://developers.cloudflare.com/workers/static-assets/binding/
+	 */
+	// "assets": { "directory": "./public/", "binding": "ASSETS" },
+	/**
+	 * Service Bindings (communicate between multiple Workers)
+	 * https://developers.cloudflare.com/workers/wrangler/configuration/#service-bindings
+	 */
+	// "services": [{ "binding": "MY_SERVICE", "service": "my-service" }]
+}