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fix: verify ORAS download checksum #4

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Merged
gpapakyriakopoulos merged 1 commit into from
Jul 9, 2026
Merged

fix: verify ORAS download checksum #4

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22 changes: 20 additions & 2 deletions dist/main/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -34968,16 +34968,34 @@ const tc = __nccwpck_require__(3472);
const { spawn } = __nccwpck_require__(5317);
const fs = __nccwpck_require__(9896);
const path = __nccwpck_require__(6928);
const crypto = __nccwpck_require__(6982);

const TRACKER_PATH = '/tmp/ebpf-tracker';
const PID_FILE = '/tmp/ebpf-tracker.pid';
const EVENTS_FILE = '/tmp/ebpf-network-events.json';
const ORAS_VERSION = '1.2.3';
const ORAS_FILENAME = `oras_${ORAS_VERSION}_linux_amd64.tar.gz`;
const ORAS_LINUX_AMD64_SHA256 = 'b4efc97a91f471f323f193ea4b4d63d8ff443ca3aab514151a30751330852827';
// Resolve the binary tag from the action ref so that
// `uses: skroutz/ebpf-tracker@v1.2.3` always pulls the v1.2.3 binary.
// Falls back to 'latest' when run outside of Actions (e.g. local testing).
const actionRef = process.env.GITHUB_ACTION_REF || 'latest';
const IMAGE = `ghcr.io/skroutz/ebpf-tracker:${actionRef}`;

function sha256File(filePath) {
return crypto.createHash('sha256').update(fs.readFileSync(filePath)).digest('hex');
}

function verifyOrasTarball(tarball) {
const actual = sha256File(tarball);
if (actual !== ORAS_LINUX_AMD64_SHA256) {
throw new Error(
`ORAS checksum verification failed: expected ${ORAS_LINUX_AMD64_SHA256}, got ${actual}`,
);
}
core.info(`Verified ORAS ${ORAS_VERSION} checksum (${actual})`);
}

/**
* Poll until the tracker has written its PID file, or the timeout expires.
* Returns the PID as a number, or null if the file never appeared.
Expand Down Expand Up @@ -35015,9 +35033,9 @@ async function run() {
await exec.exec('oras', ['version'], { silent: true });
} catch {
core.info('ORAS not found on PATH; downloading...');
const ORAS_VERSION = '1.2.3';
const url = `https://github.com/oras-project/oras/releases/download/v${ORAS_VERSION}/oras_${ORAS_VERSION}_linux_amd64.tar.gz`;
const url = `https://github.com/oras-project/oras/releases/download/v${ORAS_VERSION}/${ORAS_FILENAME}`;
const tarball = await tc.downloadTool(url);
verifyOrasTarball(tarball);
const extractedDir = await tc.extractTar(tarball);
orasPath = path.join(extractedDir, 'oras');
core.addPath(extractedDir);
Expand Down
22 changes: 20 additions & 2 deletions src/main.js
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Original file line number Diff line number Diff line change
Expand Up @@ -4,16 +4,34 @@ const tc = require('@actions/tool-cache');
const { spawn } = require('child_process');
const fs = require('fs');
const path = require('path');
const crypto = require('crypto');

const TRACKER_PATH = '/tmp/ebpf-tracker';
const PID_FILE = '/tmp/ebpf-tracker.pid';
const EVENTS_FILE = '/tmp/ebpf-network-events.json';
const ORAS_VERSION = '1.2.3';
const ORAS_FILENAME = `oras_${ORAS_VERSION}_linux_amd64.tar.gz`;
const ORAS_LINUX_AMD64_SHA256 = 'b4efc97a91f471f323f193ea4b4d63d8ff443ca3aab514151a30751330852827';
// Resolve the binary tag from the action ref so that
// `uses: skroutz/ebpf-tracker@v1.2.3` always pulls the v1.2.3 binary.
// Falls back to 'latest' when run outside of Actions (e.g. local testing).
const actionRef = process.env.GITHUB_ACTION_REF || 'latest';
const IMAGE = `ghcr.io/skroutz/ebpf-tracker:${actionRef}`;

function sha256File(filePath) {
return crypto.createHash('sha256').update(fs.readFileSync(filePath)).digest('hex');
}

function verifyOrasTarball(tarball) {
const actual = sha256File(tarball);
if (actual !== ORAS_LINUX_AMD64_SHA256) {
throw new Error(
`ORAS checksum verification failed: expected ${ORAS_LINUX_AMD64_SHA256}, got ${actual}`,
);
}
core.info(`Verified ORAS ${ORAS_VERSION} checksum (${actual})`);
}

/**
* Poll until the tracker has written its PID file, or the timeout expires.
* Returns the PID as a number, or null if the file never appeared.
Expand Down Expand Up @@ -51,9 +69,9 @@ async function run() {
await exec.exec('oras', ['version'], { silent: true });
} catch {
core.info('ORAS not found on PATH; downloading...');
const ORAS_VERSION = '1.2.3';
const url = `https://github.com/oras-project/oras/releases/download/v${ORAS_VERSION}/oras_${ORAS_VERSION}_linux_amd64.tar.gz`;
const url = `https://github.com/oras-project/oras/releases/download/v${ORAS_VERSION}/${ORAS_FILENAME}`;
const tarball = await tc.downloadTool(url);
verifyOrasTarball(tarball);
const extractedDir = await tc.extractTar(tarball);
orasPath = path.join(extractedDir, 'oras');
core.addPath(extractedDir);
Expand Down