fix: use valid git credentials when multiple are provided (#1669)

2020-10-29 11:09:19 -07:00
parent 77a75f072b
commit 2bf377194e
2 changed files with 107 additions and 16 deletions
@@ -4,6 +4,48 @@ const hostedGitInfo = require('hosted-git-info');
 const {verifyAuth} = require('./git');
 const debug = require('debug')('semantic-release:get-git-auth-url');

+/**
+ * Machinery to format a repository URL with the given credentials
+ *
+ * @param {String} protocol URL protocol (which should not be present in repositoryUrl)
+ * @param {String} repositoryUrl User-given repository URL
+ * @param {String} gitCredentials The basic auth part of the URL
+ *
+ * @return {String} The formatted Git repository URL.
+ */
+function formatAuthUrl(protocol, repositoryUrl, gitCredentials) {
+  const [match, auth, host, basePort, path] =
+    /^(?!.+:\/\/)(?:(?<auth>.*)@)?(?<host>.*?):(?<port>\d+)?:?\/?(?<path>.*)$/.exec(repositoryUrl) || [];
+  const {port, hostname, ...parsed} = parse(
+    match ? `ssh://${auth ? `${auth}@` : ''}${host}${basePort ? `:${basePort}` : ''}/${path}` : repositoryUrl
+  );
+
+  return format({
+    ...parsed,
+    auth: gitCredentials,
+    host: `${hostname}${protocol === 'ssh:' ? '' : port ? `:${port}` : ''}`,
+    protocol: protocol && /http[^s]/.test(protocol) ? 'http' : 'https',
+  });
+}
+
+/**
+ * Verify authUrl by calling git.verifyAuth, but don't throw on failure
+ *
+ * @param {Object} context semantic-release context.
+ * @param {String} authUrl Repository URL to verify
+ *
+ * @return {String} The authUrl as is if the connection was successfull, null otherwise
+ */
+async function ensureValidAuthUrl({cwd, env, branch}, authUrl) {
+  try {
+    await verifyAuth(authUrl, branch.name, {cwd, env});
+    return authUrl;
+  } catch (error) {
+    debug(error);
+    return null;
+  }
+}
+
 /**
 * Determine the the git repository URL to use to push, either:
 * - The `repositoryUrl` as is if allowed to push
@@ -15,7 +57,8 @@ const debug = require('debug')('semantic-release:get-git-auth-url');
 *
 * @return {String} The formatted Git repository URL.
 */
-module.exports = async ({cwd, env, branch, options: {repositoryUrl}}) => {
+module.exports = async (context) => {
+  const {cwd, env, branch} = context;
  const GIT_TOKENS = {
    GIT_CREDENTIALS: undefined,
    GH_TOKEN: undefined,
@@ -30,6 +73,7 @@ module.exports = async ({cwd, env, branch, options: {repositoryUrl}}) => {
    BITBUCKET_TOKEN_BASIC_AUTH: '',
  };

+  let {repositoryUrl} = context.options;
  const info = hostedGitInfo.fromUrl(repositoryUrl, {noGitPlus: true});
  const {protocol, ...parsed} = parse(repositoryUrl);

@@ -47,24 +91,30 @@ module.exports = async ({cwd, env, branch, options: {repositoryUrl}}) => {
    await verifyAuth(repositoryUrl, branch.name, {cwd, env});
  } catch (_) {
    debug('SSH key auth failed, falling back to https.');
+    const envVars = Object.keys(GIT_TOKENS).filter((envVar) => !isNil(env[envVar]));

-    const envVar = Object.keys(GIT_TOKENS).find((envVar) => !isNil(env[envVar]));
-    const gitCredentials = `${GIT_TOKENS[envVar] || ''}${env[envVar] || ''}`;
+    // Skip verification if there is no ambiguity on which env var to use for authentication
+    if (envVars.length === 1) {
+      const gitCredentials = `${GIT_TOKENS[envVars[0]] || ''}${env[envVars[0]]}`;
+      return formatAuthUrl(protocol, repositoryUrl, gitCredentials);
+    }

-    if (gitCredentials) {
-      // If credentials are set via environment variables, convert the URL to http/https and add basic auth, otherwise return `repositoryUrl` as is
-      const [match, auth, host, basePort, path] =
-        /^(?!.+:\/\/)(?:(?<auth>.*)@)?(?<host>.*?):(?<port>\d+)?:?\/?(?<path>.*)$/.exec(repositoryUrl) || [];
-      const {port, hostname, ...parsed} = parse(
-        match ? `ssh://${auth ? `${auth}@` : ''}${host}${basePort ? `:${basePort}` : ''}/${path}` : repositoryUrl
-      );
+    if (envVars.length > 1) {
+      debug(`Found ${envVars.length} credentials in environment, trying all of them`);

-      return format({
-        ...parsed,
-        auth: gitCredentials,
-        host: `${hostname}${protocol === 'ssh:' ? '' : port ? `:${port}` : ''}`,
-        protocol: protocol && /http[^s]/.test(protocol) ? 'http' : 'https',
-      });
+      const candidateRepositoryUrls = [];
+      for (const envVar of envVars) {
+        const gitCredentials = `${GIT_TOKENS[envVar] || ''}${env[envVar]}`;
+        const authUrl = formatAuthUrl(protocol, repositoryUrl, gitCredentials);
+        candidateRepositoryUrls.push(ensureValidAuthUrl(context, authUrl));
+      }
+
+      const validRepositoryUrls = await Promise.all(candidateRepositoryUrls);
+      const chosenAuthUrlIndex = validRepositoryUrls.findIndex((url) => url !== null);
+      if (chosenAuthUrlIndex > -1) {
+        debug(`Using "${envVars[chosenAuthUrlIndex]}" to authenticate`);
+        return validRepositoryUrls[chosenAuthUrlIndex];
+      }
    }
  }