From a97cdd275e0b8c4c4fa218ca9fd303c509edfd77 Mon Sep 17 00:00:00 2001
From: Steve Winter <steve.winter7@gmail.com>
Date: Sat, 10 Feb 2024 10:45:09 +1000
Subject: [PATCH] Added gitlab.js #9-Gitlab

---
 td.server/src/providers/gitlab.js | 101 ++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 td.server/src/providers/gitlab.js

diff --git a/td.server/src/providers/gitlab.js b/td.server/src/providers/gitlab.js
new file mode 100644
index 000000000..54adcbfb4
--- /dev/null
+++ b/td.server/src/providers/gitlab.js
@@ -0,0 +1,101 @@
+/**
+ * @name gitlab
+ * @description Identity provider for Gitlab OAuth
+ */
+import axios from 'axios';
+
+import env from '../env/Env.js';
+import repositories from "../repositories";
+
+const name = 'gitlab';
+
+/**
+ * Determines if the GitHub provider is configured
+ * @returns {Boolean}
+ */
+const isConfigured = () => Boolean(env.get().config.GITLAB_CLIENT_ID);
+
+/**
+ * Gets the Gitlab endpoint, which will be gitlab.com by default OR a custom endpoint for Gitlab enterprise scenarios
+ * @returns {String}
+ */
+const getGitlabUrl = () => {
+    const enterpriseHostname = env.get().config.GITLAB_ENTERPRISE_HOSTNAME;
+    if(enterpriseHostname) {
+        const port = env.get().config.GITLAB_ENTERPRISE_PORT || '';
+        const protocol = env.get().config.GITLAB_ENTERPRISE_PROTOCOL || 'https';
+        const enterpriseUrl = `${protocol}://${enterpriseHostname}${port ? ':' + port : ''}`;
+        return enterpriseUrl;
+    }
+    return 'https://gitlab.com';
+};
+
+/**
+ * Gets the Gitlab OAuth Login URL
+ * @returns {String}
+ */
+const getOauthRedirectUrl = () => {
+    const scope = env.get().config.GITLAB_SCOPE || 'read_user,read_repository,write_repository,profile';
+    return `${getGitlabUrl()}/oauth/authorize?scope=${scope}&redirect_uri=${env.get().config.GITLAB_REDIRECT_URI}&response_type=code&client_id=${env.get().config.GITLAB_CLIENT_ID}`;
+};
+
+/**
+ * Gets the return URL for our application, returning from gitlab
+ * @param {string} code
+ * @returns {String}
+ */
+const getOauthReturnUrl = (code) => {
+    let returnUrl = `/#/oauth-return?code=${code}`;
+    if (env.get().config.NODE_ENV === 'development') {
+        returnUrl = `http://localhost:8080${returnUrl}`;
+    }
+    return returnUrl;
+};
+
+/**
+ * Finishes the OAuth login, issues a JWT
+ * @param {String} code
+ * @returns {String} jwt
+ */
+
+const completeLoginAsync = async (code) => {
+    const url = `${getGitlabUrl()}/oauth/token`;
+    const body = {
+        client_id: env.get().config.GITLAB_CLIENT_ID,
+        client_secret: env.get().config.GITLAB_CLIENT_SECRET,
+        grant_type: 'authorization_code',
+        redirect_uri: env.get().config.GITLAB_REDIRECT_URI,
+        // grant_type
+        // code_verifier: 'CODE_VERIFIER',
+        code
+    };
+    const options = {
+        headers: {
+            accept: 'application/json'
+        }
+    };
+
+    const providerResp = await axios.post(url, body, options);
+
+
+    repositories.set("gitlabrepo");
+    const repo = repositories.get();
+    const fullUser = await repo.userAsync(providerResp.data.access_token);
+
+    const user = {
+        username: fullUser.username,
+        repos_url: fullUser.web_url
+    };
+    return {
+        user,
+        opts: providerResp.data
+    };
+};
+
+export default {
+    completeLoginAsync,
+    getOauthReturnUrl,
+    getOauthRedirectUrl,
+    isConfigured,
+    name
+};