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docker.js
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import { Buffer } from "node:buffer";
import { spawnSync } from "node:child_process";
import {
createReadStream,
lstatSync,
mkdtempSync,
readFileSync,
readdirSync,
rmSync,
statSync,
} from "node:fs";
import { platform as _platform, userInfo as _userInfo, homedir } from "node:os";
import { basename, join, resolve, win32 } from "node:path";
import process from "node:process";
import stream from "node:stream/promises";
import { parse } from "node:url";
import { globSync } from "glob";
import got from "got";
import { x } from "tar";
import {
DEBUG_MODE,
getAllFiles,
getTmpDir,
safeExistsSync,
safeMkdirSync,
} from "../helpers/utils.js";
export const isWin = _platform() === "win32";
export const DOCKER_HUB_REGISTRY = "docker.io";
// Should we extract the tar image in non-strict mode
const NON_STRICT_TAR_EXTRACT = ["true", "1"].includes(
process?.env?.NON_STRICT_TAR_EXTRACT,
);
if (NON_STRICT_TAR_EXTRACT) {
console.log(
"Warning: Extracting container images and tar files in non-strict mode could lead to security risks!",
);
}
let dockerConn = undefined;
let isPodman = false;
let isPodmanRootless = true;
let isDockerRootless = false;
// https://github.com/containerd/containerd
let isContainerd = !!process.env.CONTAINERD_ADDRESS;
const WIN_LOCAL_TLS = "http://localhost:2375";
let isWinLocalTLS = false;
let isNerdctl = undefined;
let isColima = undefined;
if (
!process.env.DOCKER_HOST &&
(process.env.CONTAINERD_ADDRESS ||
(process.env.XDG_RUNTIME_DIR &&
safeExistsSync(
join(process.env.XDG_RUNTIME_DIR, "containerd-rootless", "api.sock"),
)))
) {
isContainerd = true;
}
// Taken from https://github.com/isaacs/node-tar/blob/main/src/strip-absolute-path.ts
export const stripAbsolutePath = (path) => {
// This appears to be a most frequent case, so let's return quickly.
if (path === "/") {
return "";
}
let parsed = win32.parse(path);
while (win32.isAbsolute(path) || parsed.root) {
// windows will think that //x/y/z has a "root" of //x/y/
// but strip the //?/C:/ off of //?/C:/path
const root =
path.charAt(0) === "/" && path.slice(0, 4) !== "//?/" ? "/" : parsed.root;
path = path.slice(root.length);
parsed = win32.parse(path);
}
return path;
};
/**
* Detect colima
*/
export function detectColima() {
if (_platform() === "darwin") {
const result = spawnSync("colima", ["version"], {
encoding: "utf-8",
});
if (result.status !== 0 || result.error) {
return false;
}
if (result?.stdout?.includes("colima version")) {
isColima = true;
if (result?.stdout?.includes("runtime: containerd")) {
isNerdctl = true;
}
}
}
return isColima;
}
/**
* Detect if Rancher desktop is running on a mac.
*/
export function detectRancherDesktop() {
// Detect Rancher desktop and nerdctl on a mac
if (_platform() === "darwin") {
const limaHome = join(
homedir(),
"Library",
"Application Support",
"rancher-desktop",
"lima",
);
const limactl = join(
"/Applications",
"Rancher Desktop.app",
"Contents",
"Resources",
"resources",
"darwin",
"lima",
"bin",
"limactl",
);
// Is Rancher Desktop running
if (safeExistsSync(limactl) || safeExistsSync(limaHome)) {
const result = spawnSync("rdctl", ["list-settings"], {
encoding: "utf-8",
});
if (result.status !== 0 || result.error) {
if (
isNerdctl === undefined &&
result.stderr?.includes("connection refused")
) {
console.warn(
"Ensure Rancher Desktop is running prior to invoking cdxgen. To start from the command line, type the command 'rdctl start'",
);
isNerdctl = false;
}
} else {
if (DEBUG_MODE) {
console.log("Rancher Desktop found!");
}
isNerdctl = true;
}
}
}
return isNerdctl;
}
// Cache the registry auth keys
const registry_auth_keys = {};
/**
* Method to get all dirs matching a name
*
* @param {string} dirPath Root directory for search
* @param {string} dirName Directory name
*/
export const getDirs = (dirPath, dirName, hidden = false, recurse = true) => {
try {
return globSync(recurse ? "**/" : `${dirName}`, {
cwd: dirPath,
absolute: true,
nocase: true,
nodir: false,
follow: false,
dot: hidden,
});
} catch (err) {
return [];
}
};
function flatten(lists) {
return lists.reduce((a, b) => a.concat(b), []);
}
function getDirectories(srcpath) {
if (safeExistsSync(srcpath)) {
return readdirSync(srcpath)
.map((file) => join(srcpath, file))
.filter((path) => {
try {
return statSync(path).isDirectory();
} catch (e) {
return false;
}
});
}
return [];
}
export const getOnlyDirs = (srcpath, dirName) => {
return [
srcpath,
...flatten(
getDirectories(srcpath)
.map((p) => {
try {
if (safeExistsSync(p)) {
if (lstatSync(p).isDirectory()) {
return getOnlyDirs(p, dirName);
}
}
} catch (err) {
// ignore
}
})
.filter((p) => p !== undefined),
),
].filter((d) => d.endsWith(dirName));
};
const getDefaultOptions = (forRegistry) => {
let authTokenSet = false;
if (!forRegistry) {
forRegistry = process.env.DOCKER_SERVER_ADDRESS ?? DOCKER_HUB_REGISTRY;
}
if (forRegistry) {
forRegistry = forRegistry.replace("http://", "").replace("https://", "");
if (forRegistry.includes("/")) {
forRegistry = forRegistry.split("/")[0];
}
}
const opts = {
enableUnixSockets: true,
throwHttpErrors: true,
method: "GET",
hooks: { beforeError: [] },
mutableDefaults: true,
};
const DOCKER_CONFIG = process.env.DOCKER_CONFIG || join(homedir(), ".docker");
// Support for private registry
if (process.env.DOCKER_AUTH_CONFIG) {
opts.headers = {
"X-Registry-Auth": process.env.DOCKER_AUTH_CONFIG,
};
authTokenSet = true;
}
if (
!authTokenSet &&
process.env.DOCKER_USER &&
process.env.DOCKER_PASSWORD &&
process.env.DOCKER_EMAIL &&
forRegistry
) {
const authPayload = {
username: process.env.DOCKER_USER,
email: process.env.DOCKER_EMAIL,
serveraddress: forRegistry,
};
if (process.env.DOCKER_USER === "<token>") {
authPayload.IdentityToken = process.env.DOCKER_PASSWORD;
} else {
authPayload.password = process.env.DOCKER_PASSWORD;
}
opts.headers = {
"X-Registry-Auth": Buffer.from(JSON.stringify(authPayload)).toString(
"base64",
),
};
}
if (!authTokenSet && safeExistsSync(join(DOCKER_CONFIG, "config.json"))) {
const configData = readFileSync(
join(DOCKER_CONFIG, "config.json"),
"utf-8",
);
if (configData) {
try {
const configJson = JSON.parse(configData);
if (configJson.auths) {
// Check if there are hardcoded tokens
for (const serverAddress of Object.keys(configJson.auths)) {
if (forRegistry && !serverAddress.includes(forRegistry)) {
continue;
}
if (configJson.auths[serverAddress].auth) {
opts.headers = {
"X-Registry-Auth": configJson.auths[serverAddress].auth,
};
authTokenSet = true;
break;
}
if (configJson.credsStore) {
const helperAuthToken = getCredsFromHelper(
configJson.credsStore,
serverAddress,
);
if (helperAuthToken) {
opts.headers = {
"X-Registry-Auth": helperAuthToken,
};
authTokenSet = true;
break;
}
}
}
} else if (configJson.credHelpers) {
// Support for credential helpers
for (const serverAddress of Object.keys(configJson.credHelpers)) {
if (forRegistry && !serverAddress.includes(forRegistry)) {
continue;
}
if (configJson.credHelpers[serverAddress]) {
const helperAuthToken = getCredsFromHelper(
configJson.credHelpers[serverAddress],
serverAddress,
);
if (helperAuthToken) {
opts.headers = {
"X-Registry-Auth": helperAuthToken,
};
authTokenSet = true;
break;
}
}
}
}
} catch (err) {
// pass
}
}
}
const userInfo = _userInfo();
opts.podmanPrefixUrl = isWin ? "" : "http://unix:/run/podman/podman.sock:";
opts.podmanRootlessPrefixUrl = isWin
? ""
: `http://unix:/run/user/${userInfo.uid}/podman/podman.sock:`;
if (!process.env.DOCKER_HOST) {
if (isPodman) {
opts.prefixUrl = isPodmanRootless
? opts.podmanRootlessPrefixUrl
: opts.podmanPrefixUrl;
} else {
if (isWinLocalTLS) {
opts.prefixUrl = WIN_LOCAL_TLS;
} else {
// Named pipes syntax for Windows doesn't work with got
// See: https://github.com/sindresorhus/got/issues/2178
/*
opts.prefixUrl = isWin
? "npipe//./pipe/docker_engine:"
: "unix:/var/run/docker.sock:";
*/
opts.prefixUrl = isWin
? WIN_LOCAL_TLS
: isDockerRootless
? `http://unix:${homedir()}/.docker/run/docker.sock:`
: "http://unix:/var/run/docker.sock:";
}
}
} else {
let hostStr = process.env.DOCKER_HOST;
if (hostStr.startsWith("unix:///")) {
hostStr = hostStr.replace("unix:///", "http://unix:/");
if (hostStr.includes("docker.sock")) {
hostStr = hostStr.replace("docker.sock", "docker.sock:");
isDockerRootless = true;
}
}
opts.prefixUrl = hostStr;
if (process.env.DOCKER_CERT_PATH) {
opts.https = {
certificate: readFileSync(
join(process.env.DOCKER_CERT_PATH, "cert.pem"),
"utf8",
),
key: readFileSync(
join(process.env.DOCKER_CERT_PATH, "key.pem"),
"utf8",
),
};
// Disable tls on empty values
// From the docker docs: Setting the DOCKER_TLS_VERIFY environment variable to any value other than the empty string is equivalent to setting the --tlsverify flag
if (
process.env.DOCKER_TLS_VERIFY &&
process.env.DOCKER_TLS_VERIFY === ""
) {
opts.https.rejectUnauthorized = false;
console.log("TLS Verification disabled for", hostStr);
}
}
}
return opts;
};
export const getConnection = async (options, forRegistry) => {
if (isContainerd || isNerdctl) {
return undefined;
}
if (!dockerConn) {
const defaultOptions = getDefaultOptions(forRegistry);
const opts = Object.assign(
{},
{
enableUnixSockets: defaultOptions.enableUnixSockets,
throwHttpErrors: defaultOptions.throwHttpErrors,
method: defaultOptions.method,
prefixUrl: defaultOptions.prefixUrl,
headers: defaultOptions.headers,
},
options,
);
try {
await got.get("_ping", opts);
dockerConn = got.extend(opts);
if (DEBUG_MODE) {
if (isDockerRootless) {
console.log("Docker service in rootless mode detected.");
} else {
console.log(
"Docker service in root mode detected. Consider switching to rootless mode to improve security. See https://docs.docker.com/engine/security/rootless/",
);
}
}
} catch (err) {
opts.prefixUrl = `http://unix:${homedir()}/.docker/run/docker.sock:`;
try {
await got.get("_ping", opts);
dockerConn = got.extend(opts);
isDockerRootless = true;
if (DEBUG_MODE) {
console.log("Docker service in rootless mode detected.");
}
return dockerConn;
} catch (err) {
// ignore
}
try {
if (isWin) {
opts.prefixUrl = WIN_LOCAL_TLS;
await got.get("_ping", opts);
dockerConn = got.extend(opts);
isWinLocalTLS = true;
if (DEBUG_MODE) {
console.log("Docker desktop on Windows detected.");
}
} else {
opts.prefixUrl = opts.podmanRootlessPrefixUrl;
await got.get("libpod/_ping", opts);
isPodman = true;
isPodmanRootless = true;
dockerConn = got.extend(opts);
if (DEBUG_MODE) {
console.log(
"Podman in rootless mode detected. Thank you for using podman!",
);
}
}
} catch (err) {
try {
opts.prefixUrl = opts.podmanPrefixUrl;
await got.get("libpod/_ping", opts);
isPodman = true;
isPodmanRootless = false;
dockerConn = got.extend(opts);
console.log(
"Podman in root mode detected. Consider switching to rootless mode to improve security. See https://github.com/containers/podman/blob/main/docs/tutorials/rootless_tutorial.md",
);
} catch (err) {
if (_platform() === "win32") {
console.warn(
"Ensure Docker for Desktop is running as an administrator with 'Exposing daemon on TCP without TLS' setting turned on.",
opts,
);
} else if (_platform() === "darwin" && !isNerdctl) {
if (detectRancherDesktop() || detectColima()) {
return undefined;
}
if (isNerdctl === undefined) {
console.warn(
"Ensure Podman Desktop (open-source) or Docker for Desktop (May require subscription) is running.",
);
}
} else {
console.warn(
"Ensure docker/podman service or Docker for Desktop is running.",
opts,
);
console.log(
"Check if the post-installation steps were performed correctly as per this documentation https://docs.docker.com/engine/install/linux-postinstall/",
);
}
}
}
}
}
return dockerConn;
};
export const makeRequest = async (path, method, forRegistry) => {
const client = await getConnection({}, forRegistry);
if (!client) {
return undefined;
}
const extraOptions = {
responseType: method === "GET" ? "json" : "buffer",
resolveBodyOnly: true,
enableUnixSockets: true,
method,
};
const defaultOptions = getDefaultOptions(forRegistry);
const opts = Object.assign(
{},
{
enableUnixSockets: defaultOptions.enableUnixSockets,
throwHttpErrors: defaultOptions.throwHttpErrors,
method: defaultOptions.method,
prefixUrl: defaultOptions.prefixUrl,
headers: defaultOptions.headers,
},
extraOptions,
);
return await client(path, opts);
};
/**
* Parse image name
*
* docker pull debian
* docker pull debian:jessie
* docker pull ubuntu@sha256:45b23dee08af5e43a7fea6c4cf9c25ccf269ee113168c19722f87876677c5cb2
* docker pull myregistry.local:5000/testing/test-image
*/
export const parseImageName = (fullImageName) => {
const nameObj = {
registry: "",
repo: "",
tag: "",
digest: "",
platform: "",
group: "",
name: "",
};
if (!fullImageName) {
return nameObj;
}
// ensure it's lowercased
fullImageName = fullImageName.toLowerCase().trim();
// Extract platform
if (fullImageName.startsWith("--platform=")) {
const tmpName = fullImageName.replace("--platform=", "").split(" ");
nameObj.platform = tmpName[0];
fullImageName = tmpName[1];
}
// Extract registry name
if (
fullImageName.includes("/") &&
(fullImageName.includes(".") || fullImageName.includes(":"))
) {
const urlObj = parse(fullImageName);
const tmpA = fullImageName.split("/");
if (
urlObj.path !== fullImageName ||
tmpA[0].includes(".") ||
tmpA[0].includes(":")
) {
nameObj.registry = tmpA[0];
fullImageName = fullImageName.replace(`${tmpA[0]}/`, "");
}
}
// Extract digest name
if (fullImageName.includes("@sha256:")) {
const tmpA = fullImageName.split("@sha256:");
if (tmpA.length > 1) {
nameObj.digest = tmpA[tmpA.length - 1];
fullImageName = fullImageName.replace(`@sha256:${nameObj.digest}`, "");
}
}
// Extract tag name
if (fullImageName.includes(":")) {
const tmpA = fullImageName.split(":");
if (tmpA.length > 1) {
nameObj.tag = tmpA[tmpA.length - 1];
fullImageName = fullImageName.replace(`:${nameObj.tag}`, "");
}
}
// The left over string is the repo name
nameObj.repo = fullImageName;
nameObj.name = fullImageName;
// extract group name
if (fullImageName.includes("/")) {
const tmpA = fullImageName.split("/");
if (tmpA.length > 1) {
nameObj.name = tmpA[tmpA.length - 1];
nameObj.group = fullImageName.replace(`/${tmpA[tmpA.length - 1]}`, "");
}
}
return nameObj;
};
/**
* Prefer cli on windows, nerdctl on mac, or when using tcp/ssh based host.
*
* @returns boolean true if we should use the cli. false otherwise
*/
const needsCliFallback = () => {
if (_platform() === "darwin" && (detectRancherDesktop() || detectColima())) {
return true;
}
return (
isWin ||
(process.env.DOCKER_HOST &&
(process.env.DOCKER_HOST.startsWith("tcp://") ||
process.env.DOCKER_HOST.startsWith("ssh://")))
);
};
/**
* Method to get image to the local registry by pulling from the remote if required
*/
export const getImage = async (fullImageName) => {
let localData = undefined;
let pullData = undefined;
const { registry, repo, tag, digest } = parseImageName(fullImageName);
const repoWithTag =
registry && registry !== DOCKER_HUB_REGISTRY
? fullImageName
: `${repo}:${tag !== "" ? tag : ":latest"}`;
// Fetch only the latest tag if none is specified
if (tag === "" && digest === "") {
fullImageName = `${fullImageName}:latest`;
}
if (isContainerd) {
console.log(
"containerd/nerdctl is currently unsupported. Export the image manually and run cdxgen against the tar image.",
);
return undefined;
}
if (needsCliFallback()) {
let dockerCmd = process.env.DOCKER_CMD || "docker";
if (!process.env.DOCKER_CMD) {
detectColima() || detectRancherDesktop();
if (isNerdctl) {
dockerCmd = "nerdctl";
}
}
let result = spawnSync(dockerCmd, ["pull", fullImageName], {
encoding: "utf-8",
});
if (result.status !== 0 || result.error) {
if (result.stderr?.includes("docker daemon is not running")) {
console.log(
"Ensure Docker for Desktop is running as an administrator with 'Exposing daemon on TCP without TLS' setting turned on.",
);
} else if (result.stderr?.includes("not found")) {
console.log(
"Set the environment variable DOCKER_CMD to use an alternative command such as nerdctl or podman.",
);
} else {
console.log(result.stderr);
}
return localData;
}
result = spawnSync(dockerCmd, ["inspect", fullImageName], {
encoding: "utf-8",
});
if (result.status !== 0 || result.error) {
console.log(result.stderr);
return localData;
}
try {
const stdout = result.stdout;
if (stdout) {
const inspectData = JSON.parse(Buffer.from(stdout).toString());
if (inspectData && Array.isArray(inspectData)) {
return inspectData[0];
}
return inspectData;
}
} catch (err) {
// continue regardless of error
}
}
try {
localData = await makeRequest(
`images/${repoWithTag}/json`,
"GET",
registry,
);
if (localData) {
return localData;
}
} catch (err) {
// ignore
}
try {
localData = await makeRequest(`images/${repo}/json`, "GET", registry);
} catch (err) {
try {
localData = await makeRequest(
`images/${fullImageName}/json`,
"GET",
registry,
);
if (localData) {
return localData;
}
} catch (err) {
// ignore
}
if (DEBUG_MODE) {
console.log(
`Trying to pull the image ${fullImageName} from registry. This might take a while ...`,
);
}
// If the data is not available locally
try {
pullData = await makeRequest(
`images/create?fromImage=${fullImageName}`,
"POST",
registry,
);
if (
pullData &&
(pullData.includes("no match for platform in manifest") ||
pullData.includes("Error choosing an image from manifest list"))
) {
console.warn(
"You may have to enable experimental settings in docker to support this platform!",
);
console.warn(
"To scan windows images, run cdxgen on a windows server with hyper-v and docker installed. Switch to windows containers in your docker settings.",
);
return undefined;
}
} catch (err) {
try {
if (DEBUG_MODE) {
console.log(`Re-trying the pull with the name ${repoWithTag}.`);
}
pullData = await makeRequest(
`images/create?fromImage=${repoWithTag}`,
"POST",
registry,
);
} catch (err) {
// continue regardless of error
}
}
try {
if (DEBUG_MODE) {
console.log(`Trying with ${repoWithTag}`);
}
localData = await makeRequest(
`images/${repoWithTag}/json`,
"GET",
registry,
);
if (localData) {
return localData;
}
} catch (err) {
try {
if (DEBUG_MODE) {
console.log(`Trying with ${repo}`);
}
localData = await makeRequest(`images/${repo}/json`, "GET", registry);
if (localData) {
return localData;
}
} catch (err) {
// continue regardless of error
}
try {
if (DEBUG_MODE) {
console.log(`Trying with ${fullImageName}`);
}
localData = await makeRequest(
`images/${fullImageName}/json`,
"GET",
registry,
);
} catch (err) {
// continue regardless of error
}
}
}
if (!localData) {
console.log(
`Unable to pull ${fullImageName}. Check if the name is valid. Perform any authentication prior to invoking cdxgen.`,
);
console.log(
`Try manually pulling this image using docker pull ${fullImageName}`,
);
}
return localData;
};
/**
* Warnings such as TAR_ENTRY_INFO are treated as errors in strict mode. While this is mostly desired, we can relax this
* requirement for one particular warning related to absolute paths.
* This callback function checks for absolute paths in the entry read from the archive and strips them using a custom
* method.
*
* @param entry {tar.ReadEntry} ReadEntry object from node-tar
*/
function handleAbsolutePath(entry) {
if (entry.path === "/" || win32.isAbsolute(entry.path)) {
entry.path = stripAbsolutePath(entry.path);
}
}
export const extractTar = async (fullImageName, dir, options) => {
try {
await stream.pipeline(
createReadStream(fullImageName),
x({
sync: true,
preserveOwner: false,
noMtime: true,
noChmod: true,
strict: !NON_STRICT_TAR_EXTRACT,
C: dir,
portable: true,
onwarn: (code, message) => {
if (DEBUG_MODE) {
console.log(code, message);
}
},
onReadEntry: handleAbsolutePath,
filter: (path, entry) => {
// Some files are known to cause issues with extract
return !(
path.includes("etc/machine-id") ||
path.includes("etc/gshadow") ||
path.includes("etc/shadow") ||
path.includes("etc/passwd") ||
path.includes("etc/ssl/certs") ||
path.includes("etc/pki/ca-trust") ||
path.includes("usr/lib/systemd/") ||
path.includes("usr/lib64/libdevmapper.so") ||
path.includes("usr/sbin/") ||
path.includes("cacerts") ||
path.includes("ssl/certs") ||
path.includes("logs/") ||
path.includes("dev/") ||
path.includes("usr/share/zoneinfo/") ||
path.includes("usr/share/doc/") ||
path.includes("usr/share/i18n/") ||
path.includes("var/lib/ca-certificates") ||
basename(path).startsWith(".") ||
path.includes("usr/share/licenses/device-mapper-libs") ||
[
"BlockDevice",
"CharacterDevice",
"FIFO",
"MultiVolume",
"TapeVolume",
"SymbolicLink",
"RenamedOrSymlinked",
"HardLink",
].includes(entry.type)
);
},
}),
);
return true;
} catch (err) {
if (err.code === "EPERM" && err.syscall === "symlink") {
console.log(
"Please run cdxgen from a powershell terminal with admin privileges to create symlinks.",
);
console.log(err);
} else if (
![
"TAR_BAD_ARCHIVE",
"TAR_ENTRY_INFO",
"TAR_ENTRY_INVALID",
"TAR_ENTRY_ERROR",
"TAR_ENTRY_UNSUPPORTED",
"TAR_ABORT",
"EACCES",
].includes(err.code)
) {
console.log(
`Error while extracting image ${fullImageName} to ${dir}. Please file this bug to the cdxgen repo. https://github.com/CycloneDX/cdxgen/issues`,
);
console.log("------------");
console.log(err);
console.log("------------");
} else if (err.code === "TAR_BAD_ARCHIVE") {
if (DEBUG_MODE) {
console.log(`Archive ${fullImageName} is empty. Skipping.`);
}
return false;
} else if (["EACCES"].includes(err.code)) {
console.log(err);
/*
* We do not display errors messages for errors:
* 1) TAR_ENTRY_INFO is an informative error indicating that an entry is being modified.
* 2) TAR_ENTRY_INVALID indicates that a given entry is not valid tar archive entry and will be skipped.
*/
} else if (
DEBUG_MODE &&
["TAR_ENTRY_INFO", "TAR_ENTRY_INVALID"].includes(err.code)
) {
if (
err?.header?.path?.includes("{") ||
err?.message?.includes("linkpath required")
) {
return false;
}
console.log(err);
} else if (DEBUG_MODE) {
console.log(err.code, "is not handled yet in extractTar method.");
}
options.failOnError && process.exit(1);
return false;
}
};
/**
* Method to export a container image archive.
* Returns the location of the layers with additional packages related metadata
*/
export const exportArchive = async (fullImageName, options = {}) => {
if (!safeExistsSync(fullImageName)) {
console.log(`Unable to find container image archive ${fullImageName}`);
return undefined;
}
const manifest = {};
const tempDir = mkdtempSync(join(getTmpDir(), "docker-images-"));
const allLayersExplodedDir = join(tempDir, "all-layers");
const blobsDir = join(tempDir, "blobs", "sha256");
safeMkdirSync(allLayersExplodedDir);
const manifestFile = join(tempDir, "manifest.json");
try {
await extractTar(fullImageName, tempDir, options);
// podman use blobs dir
if (safeExistsSync(blobsDir)) {
if (DEBUG_MODE) {
console.log(
`Image archive ${fullImageName} successfully exported to directory ${tempDir}`,
);
}
const allBlobs = getAllFiles(blobsDir, "*");
for (const ablob of allBlobs) {
if (DEBUG_MODE) {
console.log(`Extracting ${ablob} to ${allLayersExplodedDir}`);
}
await extractTar(ablob, allLayersExplodedDir, options);
}
const lastLayerConfig = {};
const lastWorkingDir = "";
const exportData = {
manifest,
allLayersDir: tempDir,
allLayersExplodedDir,
lastLayerConfig,
lastWorkingDir,
};
exportData.pkgPathList = getPkgPathList(exportData, lastWorkingDir);
return exportData;
}
if (safeExistsSync(manifestFile)) {
// docker manifest file
return await extractFromManifest(
manifestFile,
{},
tempDir,
allLayersExplodedDir,
options,
);
}
console.log(`Unable to extract image archive to ${tempDir}`);
options.failOnError && process.exit(1);
} catch (err) {
// ignore
options.failOnError && process.exit(1);
}
return undefined;
};
export const extractFromManifest = async (
manifestFile,
localData,
tempDir,
allLayersExplodedDir,
options,
) => {
// Example of manifests
// [{"Config":"blobs/sha256/dedc100afa8d6718f5ac537730dd4a5ceea3563e695c90f1a8ac6df32c4cb291","RepoTags":["shiftleft/core:latest"],"Layers":["blobs/sha256/eaead16dc43bb8811d4ff450935d607f9ba4baffda4fc110cc402fa43f601d83","blobs/sha256/2039af03c0e17a3025b989335e9414149577fa09e7d0dcbee80155333639d11f"]}]
// {"schemaVersion":2,"manifests":[{"mediaType":"application/vnd.docker.distribution.manifest.list.v2+json","digest":"sha256:7706ac20c7587081dc7a00e0ec65a6633b0bb3788e0048a3e971d3eae492db63","size":318,"annotations":{"io.containerd.image.name":"docker.io/shiftleft/scan-slim:latest","org.opencontainers.image.ref.name":"latest"}}]}
let manifest = JSON.parse(
readFileSync(manifestFile, {
encoding: "utf-8",
}),
);
let lastLayerConfig = {};