MCP um dauerhafte tenantgebundene Tokens erweitern

backend/src/plugins/auth.ts

@@ -2,16 +2,67 @@ import { FastifyInstance } from "fastify"
 import fp from "fastify-plugin"
 import jwt from "jsonwebtoken"
 import { secrets } from "../utils/secrets"
+import { createHash } from "node:crypto"
 
 import {
     authUserRoles,
     authRolePermissions,
     authUsers,
+    m2mApiKeys,
 } from "../../db/schema"
 
 import { eq, and, inArray } from "drizzle-orm"
 
 export default fp(async (server: FastifyInstance) => {
+    const hashApiKey = (apiKey: string) =>
+        createHash("sha256").update(apiKey, "utf8").digest("hex")
+
+    const isMcpRoute = (url: string) =>
+        url === "/mcp" ||
+        url.startsWith("/mcp/") ||
+        url === "/api/mcp" ||
+        url.startsWith("/api/mcp/")
+
+    const authenticateMcpApiKey = async (apiKey: string) => {
+        if (!apiKey.startsWith("fedeo_mcp_")) return false
+
+        const keyHash = hashApiKey(apiKey)
+
+        const rows = await server.db
+            .select({
+                id: m2mApiKeys.id,
+                tenantId: m2mApiKeys.tenantId,
+                userId: m2mApiKeys.userId,
+                active: m2mApiKeys.active,
+                expiresAt: m2mApiKeys.expiresAt,
+                userEmail: authUsers.email,
+                isAdmin: authUsers.is_admin,
+            })
+            .from(m2mApiKeys)
+            .innerJoin(authUsers, eq(authUsers.id, m2mApiKeys.userId))
+            .where(and(
+                eq(m2mApiKeys.keyHash, keyHash),
+                eq(m2mApiKeys.active, true)
+            ))
+            .limit(1)
+
+        const key = rows[0]
+        if (!key) return false
+        if (key.expiresAt && new Date(key.expiresAt).getTime() < Date.now()) return false
+
+        await server.db
+            .update(m2mApiKeys)
+            .set({ lastUsedAt: new Date(), updatedAt: new Date() })
+            .where(eq(m2mApiKeys.id, key.id))
+
+        return {
+            user_id: key.userId,
+            email: key.userEmail,
+            tenant_id: key.tenantId,
+            is_admin: Boolean(key.isAdmin),
+        }
+    }
+
     server.addHook("preHandler", async (req, reply) => {
         // 1️⃣ Token aus Header oder Cookie lesen
         const cookieToken = req.cookies?.token
@@ -30,11 +81,31 @@ export default fp(async (server: FastifyInstance) => {
         }
 
         try {
-            // 2️⃣ JWT verifizieren
-            const payload = jwt.verify(token, secrets.JWT_SECRET!) as {
+            // 2️⃣ JWT verifizieren oder für MCP dauerhaften Token akzeptieren
+            let payload: {
                 user_id: string
                 email: string
                 tenant_id: number | null
+                is_admin?: boolean
+            }
+
+            try {
+                payload = jwt.verify(token, secrets.JWT_SECRET!) as {
+                    user_id: string
+                    email: string
+                    tenant_id: number | null
+                }
+            } catch (jwtError) {
+                const mcpPayload = isMcpRoute(req.url)
+                    ? await authenticateMcpApiKey(token)
+                    : false
+
+                if (!mcpPayload) {
+                    throw jwtError
+                }
+
+                payload = mcpPayload
+                ;(req as any).mcpTokenAuth = true
             }
 
             if (!payload?.user_id) {
@@ -44,6 +115,9 @@ export default fp(async (server: FastifyInstance) => {
             // Payload an Request hängen
             req.user = payload
 
+            if (typeof payload.is_admin === "boolean") {
+                req.user.is_admin = payload.is_admin
+            } else {
                 const [currentUser] = await server.db
                     .select({
                         is_admin: authUsers.is_admin,
@@ -53,6 +127,7 @@ export default fp(async (server: FastifyInstance) => {
                     .limit(1)
 
                 req.user.is_admin = Boolean(currentUser?.is_admin)
+            }
 
             // Multi-Tenant Modus ohne ausgewählten Tenant → keine Rollenprüfung
             if (!req.user.tenant_id) {

backend/src/routes/mcp.ts

@@ -1,4 +1,7 @@
 import { FastifyInstance } from "fastify"
+import { and, desc, eq } from "drizzle-orm"
+import { createHash, randomBytes } from "node:crypto"
+import { m2mApiKeys } from "../../db/schema"
 import { assertToolPermission, createMcpContext } from "../mcp/authz"
 import { mcpToolMap, mcpTools } from "../mcp/registry"
 import { asToolError, asToolResult } from "../mcp/result"
@@ -38,7 +41,160 @@ function selectProtocolVersion(clientVersion?: string) {
     return SUPPORTED_PROTOCOL_VERSIONS[0]
 }
 
+const hashApiKey = (apiKey: string) =>
+    createHash("sha256").update(apiKey, "utf8").digest("hex")
+
+const createMcpToken = () => `fedeo_mcp_${randomBytes(32).toString("base64url")}`
+
+const requireMcpTokenManagementPermission = (req: any) => {
+    if (req.mcpTokenAuth) {
+        throw Object.assign(new Error("MCP Tokens können nur mit einer Benutzersitzung verwaltet werden"), { statusCode: 403 })
+    }
+
+    if (req.user?.is_admin) return
+    if (typeof req.hasPermission === "function" && req.hasPermission("mcp.tokens.write")) return
+
+    throw Object.assign(new Error("Fehlende Berechtigung: mcp.tokens.write"), { statusCode: 403 })
+}
+
 export default async function mcpRoutes(server: FastifyInstance) {
+    server.get("/mcp/tokens", async (req, reply) => {
+        try {
+            requireMcpTokenManagementPermission(req)
+
+            if (!req.user?.tenant_id) {
+                return reply.code(400).send({ error: "No tenant selected" })
+            }
+
+            const rows = await server.db
+                .select({
+                    id: m2mApiKeys.id,
+                    createdAt: m2mApiKeys.createdAt,
+                    updatedAt: m2mApiKeys.updatedAt,
+                    name: m2mApiKeys.name,
+                    keyPrefix: m2mApiKeys.keyPrefix,
+                    active: m2mApiKeys.active,
+                    lastUsedAt: m2mApiKeys.lastUsedAt,
+                    expiresAt: m2mApiKeys.expiresAt,
+                    userId: m2mApiKeys.userId,
+                    createdBy: m2mApiKeys.createdBy,
+                })
+                .from(m2mApiKeys)
+                .where(and(
+                    eq(m2mApiKeys.tenantId, req.user.tenant_id)
+                ))
+                .orderBy(desc(m2mApiKeys.createdAt))
+
+            return { rows: rows.filter((row) => row.keyPrefix.startsWith("fedeo_mcp_")) }
+        } catch (error) {
+            const statusCode = (error as any)?.statusCode || 500
+            return reply.code(statusCode).send({ error: error instanceof Error ? error.message : "Internal Server Error" })
+        }
+    })
+
+    server.post("/mcp/tokens", async (req, reply) => {
+        try {
+            requireMcpTokenManagementPermission(req)
+
+            if (!req.user?.tenant_id || !req.user?.user_id) {
+                return reply.code(400).send({ error: "No tenant selected" })
+            }
+
+            const body = req.body as {
+                name?: string
+                expiresAt?: string | null
+            }
+
+            const token = createMcpToken()
+            const expiresAt = body?.expiresAt ? new Date(body.expiresAt) : null
+
+            if (expiresAt && Number.isNaN(expiresAt.getTime())) {
+                return reply.code(400).send({ error: "expiresAt must be a valid date" })
+            }
+
+            const [created] = await server.db
+                .insert(m2mApiKeys)
+                .values({
+                    tenantId: req.user.tenant_id,
+                    userId: req.user.user_id,
+                    createdBy: req.user.user_id,
+                    name: body?.name?.trim() || "FEDEO MCP Token",
+                    keyPrefix: token.slice(0, 20),
+                    keyHash: hashApiKey(token),
+                    active: true,
+                    expiresAt,
+                })
+                .returning({
+                    id: m2mApiKeys.id,
+                    createdAt: m2mApiKeys.createdAt,
+                    name: m2mApiKeys.name,
+                    keyPrefix: m2mApiKeys.keyPrefix,
+                    active: m2mApiKeys.active,
+                    expiresAt: m2mApiKeys.expiresAt,
+                })
+
+            return {
+                token,
+                tokenType: "Bearer",
+                note: "Token wird nur einmal angezeigt. Bitte direkt in Codex oder einem Secret Store hinterlegen.",
+                record: created,
+            }
+        } catch (error) {
+            const statusCode = (error as any)?.statusCode || 500
+            return reply.code(statusCode).send({ error: error instanceof Error ? error.message : "Internal Server Error" })
+        }
+    })
+
+    server.delete("/mcp/tokens/:id", async (req, reply) => {
+        try {
+            requireMcpTokenManagementPermission(req)
+
+            if (!req.user?.tenant_id || !req.user?.user_id) {
+                return reply.code(400).send({ error: "No tenant selected" })
+            }
+
+            const { id } = req.params as { id: string }
+
+            const [existing] = await server.db
+                .select({
+                    id: m2mApiKeys.id,
+                    keyPrefix: m2mApiKeys.keyPrefix,
+                })
+                .from(m2mApiKeys)
+                .where(and(
+                    eq(m2mApiKeys.id, id),
+                    eq(m2mApiKeys.tenantId, req.user.tenant_id)
+                ))
+                .limit(1)
+
+            if (!existing || !existing.keyPrefix.startsWith("fedeo_mcp_")) {
+                return reply.code(404).send({ error: "MCP token not found" })
+            }
+
+            const [updated] = await server.db
+                .update(m2mApiKeys)
+                .set({
+                    active: false,
+                    updatedAt: new Date(),
+                })
+                .where(and(
+                    eq(m2mApiKeys.id, id),
+                    eq(m2mApiKeys.tenantId, req.user.tenant_id)
+                ))
+                .returning({
+                    id: m2mApiKeys.id,
+                    name: m2mApiKeys.name,
+                    keyPrefix: m2mApiKeys.keyPrefix,
+                    active: m2mApiKeys.active,
+                })
+
+            return { token: updated }
+        } catch (error) {
+            const statusCode = (error as any)?.statusCode || 500
+            return reply.code(statusCode).send({ error: error instanceof Error ? error.message : "Internal Server Error" })
+        }
+    })
+
     server.post("/mcp", async (req, reply) => {
         const body = req.body as JsonRpcRequest | JsonRpcRequest[]
         const requests = Array.isArray(body) ? body : [body]
@@ -141,4 +297,3 @@ export default async function mcpRoutes(server: FastifyInstance) {
         })
     })
 }
-