Add artifact scanner

Author: henrymercer

src/artifact-scanner.test.ts

@@ -0,0 +1,112 @@
+import * as fs from "fs";
+import * as os from "os";
+import * as path from "path";
+
+import test from "ava";
+
+import { scanArtifactsForTokens } from "../.github/workflows/artifact-scanner/artifact-scanner";
+import { getRunnerLogger } from "./logging";
+
+test("scanArtifactsForTokens detects GitHub tokens in files", async (t) => {
+  const logger = getRunnerLogger(true);
+  const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), "scanner-test-"));
+
+  try {
+    // Create a test file with a fake GitHub token
+    const testFile = path.join(tempDir, "test.txt");
+    fs.writeFileSync(
+      testFile,
+      "This is a test file with token ghp_1234567890123456789012345678901234AB",
+    );
+
+    const result = await scanArtifactsForTokens([testFile], logger);
+
+    t.is(result.scannedFiles, 1);
+    t.is(result.findings.length, 1);
+    t.is(result.findings[0].tokenType, "Personal Access Token");
+    t.is(result.findings[0].filePath, "test.txt");
+  } finally {
+    // Clean up
+    fs.rmSync(tempDir, { recursive: true, force: true });
+  }
+});
+
+test("scanArtifactsForTokens handles files without tokens", async (t) => {
+  const logger = getRunnerLogger(true);
+  const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), "scanner-test-"));
+
+  try {
+    // Create a test file without tokens
+    const testFile = path.join(tempDir, "test.txt");
+    fs.writeFileSync(
+      testFile,
+      "This is a test file without any sensitive data",
+    );
+
+    const result = await scanArtifactsForTokens([testFile], logger);
+
+    t.is(result.scannedFiles, 1);
+    t.is(result.findings.length, 0);
+  } finally {
+    // Clean up
+    fs.rmSync(tempDir, { recursive: true, force: true });
+  }
+});
+
+test("scanArtifactsForTokens skips binary files", async (t) => {
+  const logger = getRunnerLogger(true);
+  const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), "scanner-test-"));
+
+  try {
+    // Create a binary file (we'll just use a simple zip for this test)
+    const zipFile = path.join(tempDir, "test.zip");
+    fs.writeFileSync(zipFile, Buffer.from([0x50, 0x4b, 0x03, 0x04])); // ZIP header
+
+    const result = await scanArtifactsForTokens([zipFile], logger);
+
+    // The zip file itself should be counted but not scanned for tokens
+    t.is(result.findings.length, 0);
+  } finally {
+    // Clean up
+    fs.rmSync(tempDir, { recursive: true, force: true });
+  }
+});
+
+test("scanArtifactsForTokens detects tokens in debug artifacts zip", async (t) => {
+  const logger = getRunnerLogger(true);
+  const testZipPath = path.join(
+    __dirname,
+    "..",
+    "..",
+    "..",
+    "src",
+    "testdata",
+    "debug-artifacts-with-fake-token.zip",
+  );
+
+  const result = await scanArtifactsForTokens([testZipPath], logger);
+
+  t.true(result.scannedFiles > 0, "Should have scanned files");
+  t.true(
+    result.findings.length > 0,
+    "Should have found tokens in the test zip",
+  );
+
+  // Check that the token types are tracked
+  const serverToServerFindings = result.findings.filter(
+    (f) => f.tokenType === "Server-to-Server Token",
+  );
+  t.is(
+    serverToServerFindings.length,
+    1,
+    "Should have found exactly 1 Server-to-Server Token",
+  );
+
+  // Check that the path includes the nested structure
+  const expectedPath =
+    "debug-artifacts-with-fake-token.zip/debug-artifacts-with-test-token/my-db-java-partial.zip/my-db-java-partial/trap/java/invocations/kotlin.9017231652989744319.trap";
+  t.true(
+    result.findings.some((f) => f.filePath === expectedPath),
+    `Expected to find token at ${expectedPath}, but found: ${result.findings.map((f) => f.filePath).join(", ")}`,
+  );
+});