KI-AGENT: Matrix-Einbettung stabilisieren

backend/src/modules/matrix.service.ts

@@ -35,6 +35,11 @@ type MatrixUserSession = {
     validUntilMs: number
 }
 
+type MatrixLoginTokenResponse = {
+    login_token: string
+    expires_in_ms: number
+}
+
 type MatrixTenantRoomOptions = {
     key?: string
     name?: string
@@ -1146,6 +1151,40 @@ export function matrixService(server: FastifyInstance) {
         }
     }
 
+    const createElementRoomSession = async (
+        userId: string,
+        tenantId: number | null,
+        options: MatrixTenantRoomOptions = {}
+    ) => {
+        const room = await provisionTenantRoom(userId, tenantId, options)
+        const session = await ensureCurrentUserJoinedRoom(userId, tenantId, {
+            roomId: room.roomId,
+            alias: room.alias,
+        })
+
+        const token = await requestMatrixJson<MatrixLoginTokenResponse>(
+            "/_matrix/client/v1/login/get_token",
+            session.accessToken,
+            {
+                method: "POST",
+                headers: { "Content-Type": "application/json" },
+                body: JSON.stringify({}),
+            }
+        )
+
+        return {
+            roomId: room.roomId,
+            alias: room.alias,
+            key: room.key,
+            name: room.name,
+            matrixUserId: session.matrixUserId,
+            loginToken: token.login_token,
+            expiresInMs: token.expires_in_ms,
+            homeserverUrl: homeserverUrl(),
+            serverName: serverName(),
+        }
+    }
+
     const listTenantCommunicationUsers = async (tenantId: number | null) => {
         const tenant = await getCurrentTenant(tenantId)
         const rows = await server.db
@@ -1302,6 +1341,7 @@ export function matrixService(server: FastifyInstance) {
         getTenantRoomMessages,
         getTenantRoomMembers,
         sendTenantRoomMessage,
+        createElementRoomSession,
         syncTenantRoomMembers,
         getGeneralRoomMessages,
         getGeneralRoomMembers,

backend/src/routes/communication.ts

@@ -125,6 +125,17 @@ export default async function communicationRoutes(server: FastifyInstance) {
         }
     })
 
+    server.post("/communication/matrix/rooms/general/session", async (req, reply) => {
+        try {
+            return await matrix.createElementRoomSession(req.user.user_id, req.user.tenant_id, {
+                key: "allgemein",
+                name: "Allgemeiner Chat",
+            })
+        } catch (err: any) {
+            return handleMatrixError(req, reply, err, "Matrix session failed")
+        }
+    })
+
     server.post("/communication/matrix/rooms/general/members/sync", async (req, reply) => {
         try {
             return await matrix.syncTenantRoomMembers(req.user.user_id, req.user.tenant_id, {
@@ -190,6 +201,18 @@ export default async function communicationRoutes(server: FastifyInstance) {
         }
     })
 
+    server.post("/communication/matrix/rooms/:roomKey/session", async (req, reply) => {
+        try {
+            return await matrix.createElementRoomSession(
+                req.user.user_id,
+                req.user.tenant_id,
+                roomOptionsFromRequest(req)
+            )
+        } catch (err: any) {
+            return handleMatrixError(req, reply, err, "Matrix session failed")
+        }
+    })
+
     server.post("/communication/matrix/rooms/:roomKey/members/sync", async (req, reply) => {
         try {
             return await matrix.syncTenantRoomMembers(