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Inject GitHub host to be able to clone from another GitHub instance (#922)

Browse source 
* Adding the ability to specify the GitHub Server URL and allowing for it to differ from the Actions workflow host

* Adding tests for injecting the GitHub URL

* Addressing code review comments for PR #922
This commit is contained in:
Peter Murray 2022-09-26 17:34:52 +01:00 committed by GitHub
parent 2541b1294d
commit e6d535c99c
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GPG key ID: 4AEE18F83AFDEB23
13 changed files with 220 additions and 67 deletions
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3
.gitignore vendored
View file

@ -1,4 +1,5 @@
__test__/_temp
_temp/
lib/
node_modules/
node_modules/
.vscode/

6
README.md
View file

@ -97,6 +97,12 @@ When Git 2.18 or higher is not in your PATH, falls back to the REST API to downl
# config --global --add safe.directory <path>`
# Default: true
set-safe-directory: ''
# The base URL for the GitHub instance that you are trying to clone from, will use
# environment defaults to fetch from the same instance that the workflow is
# running from unless specified. Example URLs are https://github.com or
# https://my-ghes-server.example.com
github-server-url: ''
```
<!-- end usage -->

45
__test__/git-auth-helper.test.ts
View file

@ -20,6 +20,7 @@ let tempHomedir: string
let git: IGitCommandManager & {env: {[key: string]: string}}
let settings: IGitSourceSettings
let sshPath: string
let githubServerUrl: string
describe('git-auth-helper tests', () => {
beforeAll(async () => {
@ -67,11 +68,18 @@ describe('git-auth-helper tests', () => {
}
})
const configureAuth_configuresAuthHeader =
'configureAuth configures auth header'
it(configureAuth_configuresAuthHeader, async () => {
async function testAuthHeader(
testName: string,
serverUrl: string | undefined = undefined
) {
// Arrange
await setup(configureAuth_configuresAuthHeader)
let expectedServerUrl = 'https://github.com'
if (serverUrl) {
githubServerUrl = serverUrl
expectedServerUrl = githubServerUrl
}
await setup(testName)
expect(settings.authToken).toBeTruthy() // sanity check
const authHelper = gitAuthHelper.createAuthHelper(git, settings)
@ -88,9 +96,33 @@ describe('git-auth-helper tests', () => {
).toString('base64')
expect(
configContent.indexOf(
`http.https://github.com/.extraheader AUTHORIZATION: basic ${basicCredential}`
`http.${expectedServerUrl}/.extraheader AUTHORIZATION: basic ${basicCredential}`
)
).toBeGreaterThanOrEqual(0)
}
const configureAuth_configuresAuthHeader =
'configureAuth configures auth header'
it(configureAuth_configuresAuthHeader, async () => {
await testAuthHeader(configureAuth_configuresAuthHeader)
})
const configureAuth_AcceptsGitHubServerUrl =
'inject https://my-ghes-server.com as github server url'
it(configureAuth_AcceptsGitHubServerUrl, async () => {
await testAuthHeader(
configureAuth_AcceptsGitHubServerUrl,
'https://my-ghes-server.com'
)
})
const configureAuth_AcceptsGitHubServerUrlSetToGHEC =
'inject https://github.com as github server url'
it(configureAuth_AcceptsGitHubServerUrlSetToGHEC, async () => {
await testAuthHeader(
configureAuth_AcceptsGitHubServerUrl,
'https://github.com'
)
})
const configureAuth_configuresAuthHeaderEvenWhenPersistCredentialsFalse =
@ -778,7 +810,8 @@ async function setup(testName: string): Promise<void> {
sshKnownHosts: '',
sshStrict: true,
workflowOrganizationId: 123456,
setSafeDirectory: true
setSafeDirectory: true,
githubServerUrl: githubServerUrl
}
}

3
action.yml
View file

@ -71,6 +71,9 @@ inputs:
set-safe-directory:
description: Add repository path as safe.directory for Git global config by running `git config --global --add safe.directory <path>`
default: true
github-server-url:
description: The base URL for the GitHub instance that you are trying to clone from, will use environment defaults to fetch from the same instance that the workflow is running from unless specified. Example URLs are https://github.com or https://my-ghes-server.example.com
required: false
runs:
using: node16
main: dist/index.js

114
dist/index.js vendored
View file

@ -1935,13 +1935,13 @@ var __importStar = (this && this.__importStar) || function (mod) {
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getServerUrl = exports.getFetchUrl = void 0;
exports.isGhes = exports.getServerApiUrl = exports.getServerUrl = exports.getFetchUrl = void 0;
const assert = __importStar(__webpack_require__(357));
const url_1 = __webpack_require__(835);
function getFetchUrl(settings) {
assert.ok(settings.repositoryOwner, 'settings.repositoryOwner must be defined');
assert.ok(settings.repositoryName, 'settings.repositoryName must be defined');
const serviceUrl = getServerUrl();
const serviceUrl = getServerUrl(settings.githubServerUrl);
const encodedOwner = encodeURIComponent(settings.repositoryOwner);
const encodedName = encodeURIComponent(settings.repositoryName);
if (settings.sshKey) {
@ -1951,13 +1951,27 @@ function getFetchUrl(settings) {
return `${serviceUrl.origin}/${encodedOwner}/${encodedName}`;
}
exports.getFetchUrl = getFetchUrl;
function getServerUrl() {
// todo: remove GITHUB_URL after support for GHES Alpha is no longer needed
return new url_1.URL(process.env['GITHUB_SERVER_URL'] ||
process.env['GITHUB_URL'] ||
'https://github.com');
function getServerUrl(url) {
let urlValue = url && url.trim().length > 0
? url
: process.env['GITHUB_SERVER_URL'] || 'https://github.com';
return new url_1.URL(urlValue);
}
exports.getServerUrl = getServerUrl;
function getServerApiUrl(url) {
let apiUrl = 'https://api.github.com';
if (isGhes(url)) {
const serverUrl = getServerUrl(url);
apiUrl = new url_1.URL(`${serverUrl.origin}/api/v3`).toString();
}
return apiUrl;
}
exports.getServerApiUrl = getServerApiUrl;
function isGhes(url) {
const ghUrl = getServerUrl(url);
return ghUrl.hostname.toUpperCase() !== 'GITHUB.COM';
}
exports.isGhes = isGhes;
/***/ }),
@ -4066,6 +4080,51 @@ function authenticationPlugin(octokit, options) {
}
/***/ }),
/***/ 195:
/***/ (function(__unusedmodule, exports, __webpack_require__) {
"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getOctokit = exports.Octokit = void 0;
const github = __importStar(__webpack_require__(469));
const url_helper_1 = __webpack_require__(81);
// Centralize all Octokit references by re-exporting
var rest_1 = __webpack_require__(0);
Object.defineProperty(exports, "Octokit", { enumerable: true, get: function () { return rest_1.Octokit; } });
function getOctokit(authToken, opts) {
const options = {
baseUrl: (0, url_helper_1.getServerApiUrl)(opts.baseUrl)
};
if (opts.userAgent) {
options.userAgent = opts.userAgent;
}
return new github.GitHub(authToken, options);
}
exports.getOctokit = getOctokit;
/***/ }),
/***/ 197:
@ -4279,9 +4338,10 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.checkCommitInfo = exports.testRef = exports.getRefSpec = exports.getRefSpecForAllHistory = exports.getCheckoutInfo = exports.tagsRefSpec = void 0;
const url_1 = __webpack_require__(835);
const core = __importStar(__webpack_require__(470));
const github = __importStar(__webpack_require__(469));
const octokit_provider_1 = __webpack_require__(195);
const url_helper_1 = __webpack_require__(81);
exports.tagsRefSpec = '+refs/tags/*:refs/tags/*';
function getCheckoutInfo(git, ref, commit) {
return __awaiter(this, void 0, void 0, function* () {
@ -4431,12 +4491,12 @@ function testRef(git, ref, commit) {
});
}
exports.testRef = testRef;
function checkCommitInfo(token, commitInfo, repositoryOwner, repositoryName, ref, commit) {
function checkCommitInfo(token, commitInfo, repositoryOwner, repositoryName, ref, commit, baseUrl) {
var _a, _b;
return __awaiter(this, void 0, void 0, function* () {
try {
// GHES?
if (isGhes()) {
if ((0, url_helper_1.isGhes)(baseUrl)) {
return;
}
// Auth token?
@ -4481,7 +4541,8 @@ function checkCommitInfo(token, commitInfo, repositoryOwner, repositoryName, ref
const actualHeadSha = match[1];
if (actualHeadSha !== expectedHeadSha) {
core.debug(`Expected head sha ${expectedHeadSha}; actual head sha ${actualHeadSha}`);
const octokit = new github.GitHub(token, {
const octokit = (0, octokit_provider_1.getOctokit)(token, {
baseUrl: baseUrl,
userAgent: `actions-checkout-tracepoint/1.0 (code=STALE_MERGE;owner=${repositoryOwner};repo=${repositoryName};pr=${fromPayload('number')};run_id=${process.env['GITHUB_RUN_ID']};expected_head_sha=${expectedHeadSha};actual_head_sha=${actualHeadSha})`
});
yield octokit.repos.get({ owner: repositoryOwner, repo: repositoryName });
@ -4507,10 +4568,6 @@ function select(obj, path) {
const key = path.substr(0, i);
return select(obj[key], path.substr(i + 1));
}
function isGhes() {
const ghUrl = new url_1.URL(process.env['GITHUB_SERVER_URL'] || 'https://github.com');
return ghUrl.hostname.toUpperCase() !== 'GITHUB.COM';
}
/***/ }),
@ -6561,7 +6618,7 @@ class GitAuthHelper {
this.git = gitCommandManager;
this.settings = gitSourceSettings || {};
// Token auth header
const serverUrl = urlHelper.getServerUrl();
const serverUrl = urlHelper.getServerUrl(this.settings.githubServerUrl);
this.tokenConfigKey = `http.${serverUrl.origin}/.extraheader`; // "origin" is SCHEME://HOSTNAME[:PORT]
const basicCredential = Buffer.from(`x-access-token:${this.settings.authToken}`, 'utf8').toString('base64');
core.setSecret(basicCredential);
@ -7382,7 +7439,7 @@ function getSource(settings) {
else if (settings.sshKey) {
throw new Error(`Input 'ssh-key' not supported when falling back to download using the GitHub REST API. To create a local Git repository instead, add Git ${gitCommandManager.MinimumGitVersion} or higher to the PATH.`);
}
yield githubApiHelper.downloadRepository(settings.authToken, settings.repositoryOwner, settings.repositoryName, settings.ref, settings.commit, settings.repositoryPath);
yield githubApiHelper.downloadRepository(settings.authToken, settings.repositoryOwner, settings.repositoryName, settings.ref, settings.commit, settings.repositoryPath, settings.githubServerUrl);
return;
}
// Save state for POST action
@ -7415,7 +7472,7 @@ function getSource(settings) {
settings.ref = yield git.getDefaultBranch(repositoryUrl);
}
else {
settings.ref = yield githubApiHelper.getDefaultBranch(settings.authToken, settings.repositoryOwner, settings.repositoryName);
settings.ref = yield githubApiHelper.getDefaultBranch(settings.authToken, settings.repositoryOwner, settings.repositoryName, settings.githubServerUrl);
}
core.endGroup();
}
@ -7481,7 +7538,7 @@ function getSource(settings) {
// Log commit sha
yield git.log1("--format='%H'");
// Check for incorrect pull request merge commit
yield refHelper.checkCommitInfo(settings.authToken, commitInfo, settings.repositoryOwner, settings.repositoryName, settings.ref, settings.commit);
yield refHelper.checkCommitInfo(settings.authToken, commitInfo, settings.repositoryOwner, settings.repositoryName, settings.ref, settings.commit, settings.githubServerUrl);
}
finally {
// Remove auth
@ -10966,24 +11023,24 @@ exports.getDefaultBranch = exports.downloadRepository = void 0;
const assert = __importStar(__webpack_require__(357));
const core = __importStar(__webpack_require__(470));
const fs = __importStar(__webpack_require__(747));
const github = __importStar(__webpack_require__(469));
const io = __importStar(__webpack_require__(1));
const path = __importStar(__webpack_require__(622));
const retryHelper = __importStar(__webpack_require__(587));
const toolCache = __importStar(__webpack_require__(533));
const v4_1 = __importDefault(__webpack_require__(826));
const octokit_provider_1 = __webpack_require__(195);
const IS_WINDOWS = process.platform === 'win32';
function downloadRepository(authToken, owner, repo, ref, commit, repositoryPath) {
function downloadRepository(authToken, owner, repo, ref, commit, repositoryPath, baseUrl) {
return __awaiter(this, void 0, void 0, function* () {
// Determine the default branch
if (!ref && !commit) {
core.info('Determining the default branch');
ref = yield getDefaultBranch(authToken, owner, repo);
ref = yield getDefaultBranch(authToken, owner, repo, baseUrl);
}
// Download the archive
let archiveData = yield retryHelper.execute(() => __awaiter(this, void 0, void 0, function* () {
core.info('Downloading the archive');
return yield downloadArchive(authToken, owner, repo, ref, commit);
return yield downloadArchive(authToken, owner, repo, ref, commit, baseUrl);
}));
// Write archive to disk
core.info('Writing archive to disk');
@ -11027,12 +11084,12 @@ exports.downloadRepository = downloadRepository;
/**
* Looks up the default branch name
*/
function getDefaultBranch(authToken, owner, repo) {
function getDefaultBranch(authToken, owner, repo, baseUrl) {
return __awaiter(this, void 0, void 0, function* () {
return yield retryHelper.execute(() => __awaiter(this, void 0, void 0, function* () {
var _a;
core.info('Retrieving the default branch name');
const octokit = new github.GitHub(authToken);
const octokit = (0, octokit_provider_1.getOctokit)(authToken, { baseUrl: baseUrl });
let result;
try {
// Get the default branch from the repo info
@ -11062,9 +11119,9 @@ function getDefaultBranch(authToken, owner, repo) {
});
}
exports.getDefaultBranch = getDefaultBranch;
function downloadArchive(authToken, owner, repo, ref, commit) {
function downloadArchive(authToken, owner, repo, ref, commit, baseUrl) {
return __awaiter(this, void 0, void 0, function* () {
const octokit = new github.GitHub(authToken);
const octokit = (0, octokit_provider_1.getOctokit)(authToken, { baseUrl: baseUrl });
const params = {
owner: owner,
repo: repo,
@ -17330,6 +17387,9 @@ function getInputs() {
// Set safe.directory in git global config.
result.setSafeDirectory =
(core.getInput('set-safe-directory') || 'true').toUpperCase() === 'TRUE';
// Determine the GitHub URL that the repository is being hosted from
result.githubServerUrl = core.getInput('github-server-url');
core.debug(`GitHub Host URL = ${result.githubServerUrl}`);
return result;
});
}

2
src/git-auth-helper.ts
View file

@ -52,7 +52,7 @@ class GitAuthHelper {
this.settings = gitSourceSettings || (({} as unknown) as IGitSourceSettings)
// Token auth header
const serverUrl = urlHelper.getServerUrl()
const serverUrl = urlHelper.getServerUrl(this.settings.githubServerUrl)
this.tokenConfigKey = `http.${serverUrl.origin}/.extraheader` // "origin" is SCHEME://HOSTNAME[:PORT]
const basicCredential = Buffer.from(
`x-access-token:${this.settings.authToken}`,

9
src/git-source-provider.ts
View file

@ -93,7 +93,8 @@ export async function getSource(settings: IGitSourceSettings): Promise<void> {
settings.repositoryName,
settings.ref,
settings.commit,
settings.repositoryPath
settings.repositoryPath,
settings.githubServerUrl
)
return
}
@ -138,7 +139,8 @@ export async function getSource(settings: IGitSourceSettings): Promise<void> {
settings.ref = await githubApiHelper.getDefaultBranch(
settings.authToken,
settings.repositoryOwner,
settings.repositoryName
settings.repositoryName,
settings.githubServerUrl
)
}
core.endGroup()
@ -232,7 +234,8 @@ export async function getSource(settings: IGitSourceSettings): Promise<void> {
settings.repositoryOwner,
settings.repositoryName,
settings.ref,
settings.commit
settings.commit,
settings.githubServerUrl
)
} finally {
// Remove auth

5
src/git-source-settings.ts
View file

@ -83,4 +83,9 @@ export interface IGitSourceSettings {
* Indicates whether to add repositoryPath as safe.directory in git global config
*/
setSafeDirectory: boolean
/**
* User override on the GitHub Server/Host URL that hosts the repository to be cloned
*/
githubServerUrl: string | undefined
}

20
src/github-api-helper.ts
View file

@ -1,13 +1,12 @@
import * as assert from 'assert'
import * as core from '@actions/core'
import * as fs from 'fs'
import * as github from '@actions/github'
import * as io from '@actions/io'
import * as path from 'path'
import * as retryHelper from './retry-helper'
import * as toolCache from '@actions/tool-cache'
import {default as uuid} from 'uuid/v4'
import {Octokit} from '@octokit/rest'
import {getOctokit, Octokit} from './octokit-provider'
const IS_WINDOWS = process.platform === 'win32'
@ -17,18 +16,19 @@ export async function downloadRepository(
repo: string,
ref: string,
commit: string,
repositoryPath: string
repositoryPath: string,
baseUrl?: string
): Promise<void> {
// Determine the default branch
if (!ref && !commit) {
core.info('Determining the default branch')
ref = await getDefaultBranch(authToken, owner, repo)
ref = await getDefaultBranch(authToken, owner, repo, baseUrl)
}
// Download the archive
let archiveData = await retryHelper.execute(async () => {
core.info('Downloading the archive')
return await downloadArchive(authToken, owner, repo, ref, commit)
return await downloadArchive(authToken, owner, repo, ref, commit, baseUrl)
})
// Write archive to disk
@ -79,11 +79,12 @@ export async function downloadRepository(
export async function getDefaultBranch(
authToken: string,
owner: string,
repo: string
repo: string,
baseUrl?: string
): Promise<string> {
return await retryHelper.execute(async () => {
core.info('Retrieving the default branch name')
const octokit = new github.GitHub(authToken)
const octokit = getOctokit(authToken, {baseUrl: baseUrl})
let result: string
try {
// Get the default branch from the repo info
@ -121,9 +122,10 @@ async function downloadArchive(
owner: string,
repo: string,
ref: string,
commit: string
commit: string,
baseUrl?: string
): Promise<Buffer> {
const octokit = new github.GitHub(authToken)
const octokit = getOctokit(authToken, {baseUrl: baseUrl})
const params: Octokit.ReposGetArchiveLinkParams = {
owner: owner,
repo: repo,

5
src/input-helper.ts
View file

@ -125,5 +125,10 @@ export async function getInputs(): Promise<IGitSourceSettings> {
// Set safe.directory in git global config.
result.setSafeDirectory =
(core.getInput('set-safe-directory') || 'true').toUpperCase() === 'TRUE'
// Determine the GitHub URL that the repository is being hosted from
result.githubServerUrl = core.getInput('github-server-url')
core.debug(`GitHub Host URL = ${result.githubServerUrl}`)
return result
}

23
src/octokit-provider.ts Normal file
View file

@ -0,0 +1,23 @@
import * as github from '@actions/github'
import {Octokit} from '@octokit/rest'
import {getServerApiUrl} from './url-helper'
// Centralize all Octokit references by re-exporting
export {Octokit} from '@octokit/rest'
export type OctokitOptions = {
baseUrl?: string
userAgent?: string
}
export function getOctokit(authToken: string, opts: OctokitOptions) {
const options: Octokit.Options = {
baseUrl: getServerApiUrl(opts.baseUrl)
}
if (opts.userAgent) {
options.userAgent = opts.userAgent
}
return new github.GitHub(authToken, options)
}

18
src/ref-helper.ts
View file

@ -1,7 +1,8 @@
import {URL} from 'url'
import {IGitCommandManager} from './git-command-manager'
import * as core from '@actions/core'
import * as github from '@actions/github'
import {getOctokit} from './octokit-provider'
import {isGhes} from './url-helper'
export const tagsRefSpec = '+refs/tags/*:refs/tags/*'
@ -183,11 +184,12 @@ export async function checkCommitInfo(
repositoryOwner: string,
repositoryName: string,
ref: string,
commit: string
commit: string,
baseUrl?: string
): Promise<void> {
try {
// GHES?
if (isGhes()) {
if (isGhes(baseUrl)) {
return
}
@ -243,7 +245,8 @@ export async function checkCommitInfo(
core.debug(
`Expected head sha ${expectedHeadSha}; actual head sha ${actualHeadSha}`
)
const octokit = new github.GitHub(token, {
const octokit = getOctokit(token, {
baseUrl: baseUrl,
userAgent: `actions-checkout-tracepoint/1.0 (code=STALE_MERGE;owner=${repositoryOwner};repo=${repositoryName};pr=${fromPayload(
'number'
)};run_id=${
@ -276,10 +279,3 @@ function select(obj: any, path: string): any {
const key = path.substr(0, i)
return select(obj[key], path.substr(i + 1))
}
function isGhes(): boolean {
const ghUrl = new URL(
process.env['GITHUB_SERVER_URL'] || 'https://github.com'
)
return ghUrl.hostname.toUpperCase() !== 'GITHUB.COM'
}

34
src/url-helper.ts
View file

@ -1,6 +1,6 @@
import * as assert from 'assert'
import {IGitSourceSettings} from './git-source-settings'
import {URL} from 'url'
import {IGitSourceSettings} from './git-source-settings'
export function getFetchUrl(settings: IGitSourceSettings): string {
assert.ok(
@ -8,7 +8,7 @@ export function getFetchUrl(settings: IGitSourceSettings): string {
'settings.repositoryOwner must be defined'
)
assert.ok(settings.repositoryName, 'settings.repositoryName must be defined')
const serviceUrl = getServerUrl()
const serviceUrl = getServerUrl(settings.githubServerUrl)
const encodedOwner = encodeURIComponent(settings.repositoryOwner)
const encodedName = encodeURIComponent(settings.repositoryName)
if (settings.sshKey) {
@ -19,11 +19,27 @@ export function getFetchUrl(settings: IGitSourceSettings): string {
return `${serviceUrl.origin}/${encodedOwner}/${encodedName}`
}
export function getServerUrl(): URL {
// todo: remove GITHUB_URL after support for GHES Alpha is no longer needed
return new URL(
process.env['GITHUB_SERVER_URL'] ||
process.env['GITHUB_URL'] ||
'https://github.com'
)
export function getServerUrl(url?: string): URL {
let urlValue =
url && url.trim().length > 0
? url
: process.env['GITHUB_SERVER_URL'] || 'https://github.com'
return new URL(urlValue)
}
export function getServerApiUrl(url?: string): string {
let apiUrl = 'https://api.github.com'
if (isGhes(url)) {
const serverUrl = getServerUrl(url)
apiUrl = new URL(`${serverUrl.origin}/api/v3`).toString()
}
return apiUrl
}
export function isGhes(url?: string): boolean {
const ghUrl = getServerUrl(url)
return ghUrl.hostname.toUpperCase() !== 'GITHUB.COM'
}