Toolkit: implement plugin signing in grafana-toolkit (#27907)

* implement plugin signing in grafana-toolkit

packages/grafana-toolkit/README.md

@@ -61,6 +61,7 @@ With grafana-toolkit, we give you a CLI that addresses common tasks performed wh
 - `grafana-toolkit plugin:dev`
 - `grafana-toolkit plugin:test`
 - `grafana-toolkit plugin:build`
+- `grafana-toolkit plugin:sign`
 
 ### Create your plugin
 
@@ -105,6 +106,19 @@ Available options:
 
 - `--coverage` - Reports code coverage after the test step of the build.
 
+### Sign your plugin
+
+`grafana-toolkit plugin:sign`
+
+This command creates a signed MANIFEST.txt file which Grafana uses to validate the integrity of the plugin.
+
+Available options:
+
+- `--signatureType` - The [type of Signature](https://grafana.com/legal/plugins/) you are generating: `private`, `community` or `commercial`
+- `--rootUrls` - For private signatures, a list of the Grafana instance URLs that the plugin will be used on
+
+To generate a signature, you will need to sign up for a free account on https://grafana.com, create an API key with the Plugin Publisher role, and pass that in the `GRAFANA_API_KEY` environment variable.
+
 ## FAQ
 
 ### Which version of grafana-toolkit should I use?

packages/grafana-toolkit/src/cli/index.ts

@@ -18,6 +18,7 @@ import { pluginUpdateTask } from './tasks/plugin.update';
 import { ciBuildPluginDocsTask, ciBuildPluginTask, ciPackagePluginTask, ciPluginReportTask } from './tasks/plugin.ci';
 import { buildPackageTask } from './tasks/package.build';
 import { pluginCreateTask } from './tasks/plugin.create';
+import { pluginSignTask } from './tasks/plugin.sign';
 import { bundleManagedTask } from './tasks/plugin/bundle.managed';
 import { componentCreateTask } from './tasks/component.create';
 
@@ -179,6 +180,19 @@ export const run = (includeInternalScripts = false) => {
       });
     });
 
+  program
+    .command('plugin:sign')
+    .option('--signatureType <type>', 'Signature Type')
+    .option('--rootUrls <urls...>', 'Root URLs')
+    .description('Create a plugin signature')
+    .action(async cmd => {
+      await execTask(pluginSignTask)({
+        signatureType: cmd.signatureType,
+        rootUrls: cmd.rootUrls,
+        silent: true,
+      });
+    });
+
   program
     .command('plugin:ci-build')
     .option('--finish', 'move all results to the jobs folder', false)
@@ -200,11 +214,14 @@ export const run = (includeInternalScripts = false) => {
 
   program
     .command('plugin:ci-package')
-    .option('--signing-admin', 'Use the admin API endpoint for signing the manifest.', false)
+    .option('--signatureType <type>', 'Signature Type')
+    .option('--rootUrls <urls...>', 'Root URLs')
+    .option('--signing-admin', 'Use the admin API endpoint for signing the manifest. (deprecated)', false)
     .description('Create a zip packages for the plugin')
     .action(async cmd => {
       await execTask(ciPackagePluginTask)({
-        signingAdmin: cmd.signingAdmin,
+        signatureType: cmd.signatureType,
+        rootUrls: cmd.rootUrls,
       });
     });
 

packages/grafana-toolkit/src/cli/tasks/plugin.ci.ts

@@ -8,6 +8,7 @@ import execa = require('execa');
 import path = require('path');
 import fs from 'fs-extra';
 import { getPackageDetails, getGrafanaVersions, readGitLog } from '../../plugins/utils';
+import { buildManifest, signManifest, saveManifest } from '../../plugins/manifest';
 import {
   getJobFolder,
   writeJobStats,
@@ -25,7 +26,8 @@ const rimraf = promisify(rimrafCallback);
 export interface PluginCIOptions {
   finish?: boolean;
   upload?: boolean;
-  signingAdmin?: boolean;
+  signatureType?: string;
+  rootUrls?: string[];
   maxJestWorkers?: string;
 }
 
@@ -107,7 +109,7 @@ export const ciBuildPluginDocsTask = new Task<PluginCIOptions>('Build Plugin Doc
  *  2. zip it into packages in `~/ci/packages`
  *  3. prepare grafana environment in: `~/ci/grafana-test-env`
  */
-const packagePluginRunner: TaskRunner<PluginCIOptions> = async ({ signingAdmin }) => {
+const packagePluginRunner: TaskRunner<PluginCIOptions> = async ({ signatureType, rootUrls }) => {
   const start = Date.now();
   const ciDir = getCiFolder();
   const packagesDir = path.resolve(ciDir, 'packages');
@@ -163,11 +165,16 @@ const packagePluginRunner: TaskRunner<PluginCIOptions> = async ({ signingAdmin }
   });
 
   // Write a MANIFEST.txt file in the dist folder
-  // By using the --signing-admin flag the plugin doesn't need to be in the plugins database to be signed,
-  // however it requires an Admin API key.
   try {
-    const grabplCommandFlags = signingAdmin ? ['build-plugin-manifest', '--signing-admin'] : ['build-plugin-manifest'];
-    await execa('grabpl', [...grabplCommandFlags, distContentDir]);
+    const manifest = await buildManifest(distContentDir);
+    if (signatureType) {
+      manifest.signatureType = signatureType;
+    }
+    if (rootUrls) {
+      manifest.rootUrls = rootUrls;
+    }
+    const signedManifest = await signManifest(manifest);
+    await saveManifest(distContentDir, signedManifest);
   } catch (err) {
     console.warn(`Error signing manifest: ${distContentDir}`, err);
   }

packages/grafana-toolkit/src/cli/tasks/plugin.sign.ts

@@ -0,0 +1,38 @@
+import path from 'path';
+import { buildManifest, signManifest, saveManifest } from '../../plugins/manifest';
+import { Task, TaskRunner } from './task';
+
+interface PluginSignOptions {
+  signatureType?: string;
+  rootUrls?: string[];
+}
+
+const pluginSignRunner: TaskRunner<PluginSignOptions> = async ({ signatureType, rootUrls }) => {
+  const distContentDir = path.resolve('dist');
+
+  try {
+    console.log('Building manifest...');
+    const manifest = await buildManifest(distContentDir);
+    // console.log(manifest);
+
+    console.log('Signing manifest...');
+    if (signatureType) {
+      manifest.signatureType = signatureType;
+    }
+    if (rootUrls) {
+      manifest.rootUrls = rootUrls;
+    }
+
+    const signedManifest = await signManifest(manifest);
+    // console.log(signedManifest);
+
+    console.log('Saving signed manifest...');
+    await saveManifest(distContentDir, signedManifest);
+
+    console.log('Signed successfully');
+  } catch (err) {
+    console.warn(err);
+  }
+};
+
+export const pluginSignTask = new Task<PluginSignOptions>('plugin:sign task', pluginSignRunner);

packages/grafana-toolkit/src/plugins/manifest.ts

@@ -0,0 +1,83 @@
+import path from 'path';
+import fs from 'fs';
+import crypto from 'crypto';
+import { ManifestInfo } from './types';
+
+const MANIFEST_FILE = 'MANIFEST.txt';
+
+async function* walk(dir: string, baseDir: string): AsyncGenerator<string, any, any> {
+  for await (const d of await (fs.promises as any).opendir(dir)) {
+    const entry = path.join(dir, d.name);
+    if (d.isDirectory()) {
+      yield* await walk(entry, baseDir);
+    } else if (d.isFile()) {
+      yield path.relative(baseDir, entry);
+    } else if (d.isSymbolicLink()) {
+      const realPath = fs.realpathSync(entry);
+      if (!realPath.startsWith(baseDir)) {
+        throw new Error(
+          `symbolic link ${path.relative(baseDir, entry)} targets a file outside of the base directory: ${baseDir}`
+        );
+      }
+      yield path.relative(baseDir, entry);
+    }
+  }
+}
+
+export async function buildManifest(dir: string): Promise<ManifestInfo> {
+  const pluginJson = JSON.parse(fs.readFileSync(path.join(dir, 'plugin.json'), { encoding: 'utf8' }));
+
+  const manifest = {
+    plugin: pluginJson.id,
+    version: pluginJson.info.version,
+    files: {},
+  } as ManifestInfo;
+
+  for await (const p of await walk(dir, dir)) {
+    if (p === MANIFEST_FILE) {
+      continue;
+    }
+
+    manifest.files[p] = crypto
+      .createHash('sha256')
+      .update(fs.readFileSync(path.join(dir, p)))
+      .digest('hex');
+  }
+
+  return manifest;
+}
+
+export async function signManifest(manifest: ManifestInfo): Promise<string> {
+  const GRAFANA_API_KEY = process.env.GRAFANA_API_KEY;
+  if (!GRAFANA_API_KEY) {
+    throw new Error('You must enter a GRAFANA_API_KEY to sign the plugin manifest');
+  }
+
+  const GRAFANA_COM_URL = process.env.GRAFANA_COM_URL || 'https://grafana.com/api';
+  const url = GRAFANA_COM_URL + '/plugins/ci/sign';
+
+  const axios = require('axios');
+
+  try {
+    const info = await axios.post(url, manifest, {
+      headers: { Authorization: 'Bearer ' + GRAFANA_API_KEY },
+    });
+    if (info.status !== 200) {
+      console.warn('Error: ', info);
+      throw new Error('Error signing manifest');
+    }
+
+    return info.data;
+  } catch (err) {
+    if ((err.response && err.response.data) || err.response.data.message) {
+      throw new Error('Error signing manifest: ' + err.response.data.message);
+    }
+
+    throw new Error('Error signing manifest: ' + err.message);
+  }
+}
+
+export async function saveManifest(dir: string, signedManifest: string): Promise<boolean> {
+  fs.writeFileSync(path.join(dir, MANIFEST_FILE), signedManifest);
+  return true;
+}

packages/grafana-toolkit/src/plugins/types.ts

@@ -91,6 +91,10 @@ export interface GitLogInfo {
 export interface ManifestInfo {
   // time: number;  << filled in by the server
   // keyId: string; << filled in by the server
+  // signedByOrg: string; << filled in by the server
+  // signedByOrgName: string; << filled in by the server
+  signatureType?: string; // filled in by the server if not specified
+  rootUrls?: string[]; // for private signatures
   plugin: string;
   version: string;
   files: Record<string, string>;