feat: folder logins for shared hosts, read only plugin sync, full desktop builds

src/backend/database/db/index.ts

@@ -484,6 +484,19 @@ async function initializeCompleteDatabase(): Promise<void> {
     );
     CREATE INDEX IF NOT EXISTS idx_folder_access_owner_folder ON folder_access (owner_user_id, folder);
 
+    CREATE TABLE IF NOT EXISTS shared_folder_auth_overrides (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        user_id TEXT NOT NULL,
+        folder TEXT NOT NULL,
+        protocol TEXT NOT NULL DEFAULT 'ssh',
+        credential_id INTEGER NOT NULL,
+        created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
+        updated_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
+        FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE,
+        FOREIGN KEY (credential_id) REFERENCES ssh_credentials (id) ON DELETE CASCADE
+    );
+    CREATE UNIQUE INDEX IF NOT EXISTS shared_folder_auth_overrides_user_folder_protocol_unique ON shared_folder_auth_overrides (user_id, folder, protocol);
+
     CREATE TABLE IF NOT EXISTS plugins (
         id TEXT PRIMARY KEY,
         name TEXT NOT NULL,

src/backend/database/db/schema.mysql.ts

@@ -490,6 +490,38 @@ export const sharedHostAuthOverrides = mysqlTable(
   ],
 );
 
+/**
+ * A recipient's own login for the shared hosts in a folder ("Parent / Child")
+ * and its subfolders. A host's own override still wins.
+ */
+export const sharedFolderAuthOverrides = mysqlTable(
+  "shared_folder_auth_overrides",
+  {
+    id: int("id").autoincrement().primaryKey(),
+    userId: varchar("user_id", { length: 255 })
+      .notNull()
+      .references(() => users.id, { onDelete: "cascade" }),
+    folder: varchar("folder", { length: 255 }).notNull(),
+    protocol: varchar("protocol", { length: 255 }).notNull().default("ssh"),
+    credentialId: int("credential_id")
+      .notNull()
+      .references(() => sshCredentials.id, { onDelete: "cascade" }),
+    createdAt: text("created_at")
+      .notNull()
+      .default(sql`(CURRENT_TIMESTAMP)`),
+    updatedAt: text("updated_at")
+      .notNull()
+      .default(sql`(CURRENT_TIMESTAMP)`),
+  },
+  (table) => [
+    uniqueIndex("shared_folder_auth_overrides_user_folder_protocol_unique").on(
+      table.userId,
+      table.folder,
+      table.protocol,
+    ),
+  ],
+);
+
 export const sharedHostSecrets = mysqlTable(
   "shared_host_secrets",
   {

src/backend/database/db/schema.pg.ts

@@ -490,6 +490,38 @@ export const sharedHostAuthOverrides = pgTable(
   ],
 );
 
+/**
+ * A recipient's own login for the shared hosts in a folder ("Parent / Child")
+ * and its subfolders. A host's own override still wins.
+ */
+export const sharedFolderAuthOverrides = pgTable(
+  "shared_folder_auth_overrides",
+  {
+    id: serial("id").primaryKey(),
+    userId: varchar("user_id", { length: 255 })
+      .notNull()
+      .references(() => users.id, { onDelete: "cascade" }),
+    folder: varchar("folder", { length: 255 }).notNull(),
+    protocol: varchar("protocol", { length: 255 }).notNull().default("ssh"),
+    credentialId: integer("credential_id")
+      .notNull()
+      .references(() => sshCredentials.id, { onDelete: "cascade" }),
+    createdAt: text("created_at")
+      .notNull()
+      .default(sql`CURRENT_TIMESTAMP`),
+    updatedAt: text("updated_at")
+      .notNull()
+      .default(sql`CURRENT_TIMESTAMP`),
+  },
+  (table) => [
+    uniqueIndex("shared_folder_auth_overrides_user_folder_protocol_unique").on(
+      table.userId,
+      table.folder,
+      table.protocol,
+    ),
+  ],
+);
+
 export const sharedHostSecrets = pgTable(
   "shared_host_secrets",
   {

src/backend/database/db/schema.ts

@@ -480,6 +480,38 @@ export const sharedHostAuthOverrides = sqliteTable(
   ],
 );
 
+/**
+ * A recipient's own login for the shared hosts in a folder ("Parent / Child")
+ * and its subfolders. A host's own override still wins.
+ */
+export const sharedFolderAuthOverrides = sqliteTable(
+  "shared_folder_auth_overrides",
+  {
+    id: integer("id").primaryKey({ autoIncrement: true }),
+    userId: text("user_id")
+      .notNull()
+      .references(() => users.id, { onDelete: "cascade" }),
+    folder: text("folder").notNull(),
+    protocol: text("protocol").notNull().default("ssh"),
+    credentialId: integer("credential_id")
+      .notNull()
+      .references(() => sshCredentials.id, { onDelete: "cascade" }),
+    createdAt: text("created_at")
+      .notNull()
+      .default(sql`CURRENT_TIMESTAMP`),
+    updatedAt: text("updated_at")
+      .notNull()
+      .default(sql`CURRENT_TIMESTAMP`),
+  },
+  (table) => [
+    uniqueIndex("shared_folder_auth_overrides_user_folder_protocol_unique").on(
+      table.userId,
+      table.folder,
+      table.protocol,
+    ),
+  ],
+);
+
 export const sharedHostSecrets = sqliteTable(
   "shared_host_secrets",
   {

src/backend/database/repositories/factory.ts

@@ -31,6 +31,7 @@ import { FolderAccessRepository } from "./folder-access-repository.js";
 import { SettingsRepository } from "./settings-repository.js";
 import { HostProtocolAuthRepository } from "./host-protocol-auth-repository.js";
 import { SharedHostAuthOverrideRepository } from "./shared-host-auth-override-repository.js";
+import { SharedFolderAuthOverrideRepository } from "./shared-folder-auth-override-repository.js";
 import { SharedHostSecretsRepository } from "./shared-host-secrets-repository.js";
 import { SshCredentialUsageRepository } from "./ssh-credential-usage-repository.js";
 import { TrustedDeviceRepository } from "./trusted-device-repository.js";
@@ -316,6 +317,15 @@ export function createCurrentSharedHostAuthOverrideRepository(): SharedHostAuthO
   );
 }
 
+export function createCurrentSharedFolderAuthOverrideRepository(): SharedFolderAuthOverrideRepository {
+  return new SharedFolderAuthOverrideRepository(
+    createCurrentRepositoryContext(),
+    createCurrentRepositoryWriteHook(
+      "shared_folder_auth_override_repository_write",
+    ),
+  );
+}
+
 export function createCurrentSshCredentialUsageRepository(): SshCredentialUsageRepository {
   return new SshCredentialUsageRepository(
     createCurrentRepositoryContext(),

src/backend/database/repositories/shared-folder-auth-override-repository.ts

@@ -0,0 +1,115 @@
+import { and, eq, inArray } from "drizzle-orm";
+import type { AuthOverrideProtocol } from "../../../types/auth-protocols.js";
+import { sharedFolderAuthOverrides } from "../db/schema.js";
+import type { DatabaseContext } from "./database-context.js";
+import { deleteReturning, upsert } from "./returning.js";
+
+/** "A / B / C" and the folders above it, closest first. */
+export function folderAndParents(folder: string | null | undefined): string[] {
+  const parts = (folder ?? "")
+    .split(" / ")
+    .map((part) => part.trim())
+    .filter(Boolean);
+  const out: string[] = [];
+  for (let i = parts.length; i > 0; i--) {
+    out.push(parts.slice(0, i).join(" / "));
+  }
+  return out;
+}
+
+export class SharedFolderAuthOverrideRepository {
+  constructor(
+    private readonly context: DatabaseContext,
+    private readonly onWrite?: () => void | Promise<void>,
+  ) {}
+
+  async findCredentialId(
+    userId: string,
+    folder: string,
+    protocol: AuthOverrideProtocol,
+  ): Promise<number | null> {
+    const rows = await this.context.drizzle
+      .select({ credentialId: sharedFolderAuthOverrides.credentialId })
+      .from(sharedFolderAuthOverrides)
+      .where(
+        and(
+          eq(sharedFolderAuthOverrides.userId, userId),
+          eq(sharedFolderAuthOverrides.folder, folder),
+          eq(sharedFolderAuthOverrides.protocol, protocol),
+        ),
+      )
+      .limit(1);
+    return rows[0]?.credentialId ?? null;
+  }
+
+  /**
+   * The login set on the host's folder or the closest folder above it, for
+   * one protocol. Null when none is set.
+   */
+  async findClosest(
+    userId: string,
+    hostFolder: string | null | undefined,
+    protocol: AuthOverrideProtocol,
+  ): Promise<{ folder: string; credentialId: number } | null> {
+    const folders = folderAndParents(hostFolder);
+    if (folders.length === 0) return null;
+    const rows = await this.context.drizzle
+      .select({
+        folder: sharedFolderAuthOverrides.folder,
+        credentialId: sharedFolderAuthOverrides.credentialId,
+      })
+      .from(sharedFolderAuthOverrides)
+      .where(
+        and(
+          eq(sharedFolderAuthOverrides.userId, userId),
+          eq(sharedFolderAuthOverrides.protocol, protocol),
+          inArray(sharedFolderAuthOverrides.folder, folders),
+        ),
+      );
+    for (const folder of folders) {
+      const row = rows.find((candidate) => candidate.folder === folder);
+      if (row) return row;
+    }
+    return null;
+  }
+
+  async setCredential(
+    userId: string,
+    folder: string,
+    protocol: AuthOverrideProtocol,
+    credentialId: number,
+  ): Promise<void> {
+    await upsert(
+      this.context,
+      sharedFolderAuthOverrides,
+      { userId, folder, protocol, credentialId },
+      {
+        target: [
+          sharedFolderAuthOverrides.userId,
+          sharedFolderAuthOverrides.folder,
+          sharedFolderAuthOverrides.protocol,
+        ],
+        set: { credentialId, updatedAt: new Date().toISOString() },
+      },
+    );
+    await this.onWrite?.();
+  }
+
+  async clearCredential(
+    userId: string,
+    folder: string,
+    protocol: AuthOverrideProtocol,
+  ): Promise<boolean> {
+    const rows = await deleteReturning(
+      this.context,
+      sharedFolderAuthOverrides,
+      and(
+        eq(sharedFolderAuthOverrides.userId, userId),
+        eq(sharedFolderAuthOverrides.folder, folder),
+        eq(sharedFolderAuthOverrides.protocol, protocol),
+      ),
+    );
+    if (rows.length > 0) await this.onWrite?.();
+    return rows.length > 0;
+  }
+}

src/backend/database/routes/rbac.ts

@@ -37,8 +37,10 @@ import {
   createCurrentHostResolutionRepository,
   createCurrentRbacAccessRepository,
   createCurrentRoleRepository,
+  createCurrentSharedFolderAuthOverrideRepository,
   createCurrentUserRepository,
 } from "../repositories/factory.js";
+import { findUsableCredential } from "../../hosts/usable-credential.js";
 
 const router = express.Router();
 
@@ -2225,4 +2227,157 @@ router.get(
   },
 );
 
+/** A folder path as hosts store it ("Parent / Child"), or null. */
+function folderParam(value: unknown): string | null {
+  if (typeof value !== "string") return null;
+  const folder = value
+    .split(" / ")
+    .map((part) => part.trim())
+    .filter(Boolean)
+    .join(" / ");
+  return folder && folder.length <= 255 ? folder : null;
+}
+
+/**
+ * @openapi
+ * /rbac/folder-auth/{protocol}:
+ *   get:
+ *     summary: Get the current user's personal login for shared hosts in a folder
+ *     tags: [RBAC]
+ *     parameters:
+ *       - in: path
+ *         name: protocol
+ *         required: true
+ *         schema: { type: string }
+ *       - in: query
+ *         name: folder
+ *         required: true
+ *         schema: { type: string }
+ *     responses:
+ *       200:
+ *         description: The folder, protocol and credential id, or null when none is set.
+ *       400:
+ *         description: Invalid folder or protocol.
+ */
+router.get(
+  "/folder-auth/:protocol",
+  authenticateJWT,
+  requireDataAccess,
+  async (req: express.Request, res: express.Response) => {
+    try {
+      const userId = (req as AuthenticatedRequest).userId!;
+      const protocol = req.params.protocol;
+      const folder = folderParam(req.query.folder);
+      if (!folder) return res.status(400).json({ error: "Invalid folder" });
+      if (!isAuthOverrideProtocol(protocol)) {
+        return res
+          .status(400)
+          .json({ error: "Invalid authentication protocol" });
+      }
+      const credentialId =
+        await createCurrentSharedFolderAuthOverrideRepository().findCredentialId(
+          userId,
+          folder,
+          protocol,
+        );
+      res.json({ folder, protocol, credentialId });
+    } catch (error) {
+      databaseLogger.error("Failed to get folder login", error);
+      res.status(500).json({ error: "Failed to fetch credential" });
+    }
+  },
+);
+
+/**
+ * @openapi
+ * /rbac/folder-auth/{protocol}:
+ *   put:
+ *     summary: Set the current user's personal login for shared hosts in a folder
+ *     description: >
+ *       Used for every host shared with the user in this folder and its
+ *       subfolders that has no personal login of its own. credentialId null
+ *       clears it.
+ *     tags: [RBAC]
+ *     parameters:
+ *       - in: path
+ *         name: protocol
+ *         required: true
+ *         schema: { type: string }
+ *     requestBody:
+ *       required: true
+ *       content:
+ *         application/json:
+ *           schema:
+ *             type: object
+ *             required: [folder, credentialId]
+ *             properties:
+ *               folder: { type: string }
+ *               credentialId: { type: integer, nullable: true }
+ *     responses:
+ *       200:
+ *         description: Saved.
+ *       400:
+ *         description: Invalid folder, protocol or credential id.
+ *       404:
+ *         description: The credential is not one the user can use.
+ */
+router.put(
+  "/folder-auth/:protocol",
+  authenticateJWT,
+  requireDataAccess,
+  async (req: express.Request, res: express.Response) => {
+    try {
+      const userId = (req as AuthenticatedRequest).userId!;
+      const protocol = req.params.protocol;
+      const folder = folderParam(req.body?.folder);
+      const credentialId = req.body?.credentialId ?? null;
+      if (!folder) return res.status(400).json({ error: "Invalid folder" });
+      if (!isAuthOverrideProtocol(protocol)) {
+        return res
+          .status(400)
+          .json({ error: "Invalid authentication protocol" });
+      }
+      if (
+        credentialId !== null &&
+        (!Number.isInteger(credentialId) || credentialId <= 0)
+      ) {
+        return res.status(400).json({
+          error: "credentialId must be a positive integer or null",
+        });
+      }
+
+      const repository = createCurrentSharedFolderAuthOverrideRepository();
+      if (credentialId === null) {
+        await repository.clearCredential(userId, folder, protocol);
+      } else {
+        if (!(await findUsableCredential(credentialId, userId))) {
+          return res.status(404).json({ error: "Credential not found" });
+        }
+        await repository.setCredential(userId, folder, protocol, credentialId);
+      }
+
+      const { ipAddress, userAgent } = getRequestMeta(req);
+      await logAudit({
+        userId,
+        username: await getAuditUsername(userId),
+        action:
+          credentialId === null
+            ? "clear_shared_folder_auth_override"
+            : "set_shared_folder_auth_override",
+        resourceType: "folder",
+        resourceName: folder,
+        details: JSON.stringify({ protocol, credentialId }),
+        ipAddress,
+        userAgent,
+        success: true,
+      }).catch(() => undefined);
+
+      res.json({ success: true, folder, protocol, credentialId });
+    } catch (error) {
+      databaseLogger.error("Failed to set folder login", error);
+      res.status(500).json({ error: "Failed to update credential" });
+    }
+  },
+);
+
 export default router;