Github Sync: initial commit

services/web/modules/github-sync/index.mjs

@@ -0,0 +1,55 @@
+import Settings from '@overleaf/settings'
+import Modules from '../../app/src/infrastructure/Modules.mjs'
+import logger from '@overleaf/logger'
+import GitHubSyncRouter from './app/src/GitHubSyncRouter.mjs'
+import SyncStateManager from './app/src/SyncStateManager.mjs'
+import TokenManager from './app/src/TokenManager.mjs'
+
+let GitHubSyncModule = {}
+if (process.env.GITHUB_SYNC_ENABLED?.toLowerCase() === 'true') {
+  logger.debug({}, 'Enabling GitHub Sync module')
+/*
+  const [{ default: GitHubSyncRouter },
+         { default: SyncStateManager },
+         { default: TokenManager }
+        ] =
+    await Promise.all([
+      import('./app/src/GitHubSyncRouter.mjs'),
+      import('./app/src/SyncStateManager.mjs'),
+      import('./app/src/TokenManager.mjs'),
+    ])
+*/
+
+  // Delete project sync state from mongo (hook 'projectExpired')
+
+  const siteUrl = process.env.OVERLEAF_SITE_URL?.replace(/\/+$/, '') || 'http://localhost'
+  Settings.githubSync = {
+    clientID: process.env.GITHUB_SYNC_CLIENT_ID,
+    clientSecret: process.env.GITHUB_SYNC_CLIENT_SECRET,
+    callbackURL: `${siteUrl}/user/github-sync/oauth2/callback`,
+  },
+
+  Modules.hooks.attach('projectExpired', async projectId => {
+    try {
+      await SyncStateManager.removeProjectState(projectId)
+      logger.debug({ projectId }, 'on project expire: removed Git sync state')
+    } catch (err) {
+      logger.warn({ projectId, err }, 'on project expire: failed to remove Git sync state')
+    }
+  })
+
+  // Delete user github token from mongo (hook 'expireDeletedUser')
+  Modules.hooks.attach('expireDeletedUser', async userId => {
+    try {
+      await TokenManager.removeUserToken(userId)
+    } catch (err) {
+      logger.warn({ userId, err }, 'on user expire: failed removing user token')
+    }
+  })
+
+  GitHubSyncModule = {
+    router: GitHubSyncRouter,
+  }
+}
+
+export default GitHubSyncModule