Fix period editing and harden app with Next.js security upgrade

next-env.d.ts

@@ -1,5 +1,6 @@
 /// <reference types="next" />
 /// <reference types="next/image-types/global" />
+/// <reference path="./.next/types/routes.d.ts" />
 
-// This file is auto-generated by Next.js.
-
+// NOTE: This file should not be edited
+// see https://nextjs.org/docs/app/api-reference/config/typescript for more information.

package.json

@@ -20,7 +20,7 @@
     "@mui/material": "^6.1.3",
     "@prisma/client": "^5.20.0",
     "bcryptjs": "^2.4.3",
-    "next": "^14.2.14",
+    "next": "^15.5.15",
     "next-auth": "^4.24.8",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",

src/app/api/audit-logs/[id]/restore/route.ts

@@ -6,9 +6,9 @@ import prisma from "@/lib/prisma";
 import { getCurrentViewer } from "@/lib/session";
 
 type Context = {
-  params: {
+  params: Promise<{
     id: string;
-  };
+  }>;
 };
 
 function asRecord(value: unknown, label: string) {
@@ -65,6 +65,7 @@ function asApprovalPermissions(value: unknown) {
 }
 
 export async function POST(_: Request, { params }: Context) {
+  const { id } = await params;
   const viewer = await getCurrentViewer();
 
   if (!viewer) {
@@ -77,7 +78,7 @@ export async function POST(_: Request, { params }: Context) {
 
   const auditLog = await prisma.auditLog.findUnique({
     where: {
-      id: params.id
+      id
     }
   });
 
@@ -297,6 +298,22 @@ export async function POST(_: Request, { params }: Context) {
           break;
         }
 
+        case "period.update": {
+          const previous = asRecord(rollback.previous, "Zeitraum");
+
+          await tx.accountingPeriod.update({
+            where: {
+              id: asString(previous.id, "Zeitraum-ID")
+            },
+            data: {
+              name: asString(previous.name, "Zeitraumname"),
+              startsAt: asDate(previous.startsAt, "Zeitraumstart") ?? new Date(),
+              endsAt: asDate(previous.endsAt, "Zeitraumende") ?? new Date()
+            }
+          });
+          break;
+        }
+
         case "period.setCurrent": {
           const previousCurrentPeriodId = asNullableString(rollback.previousCurrentPeriodId);
 

src/app/api/budgets/[id]/route.ts

@@ -26,12 +26,13 @@ const updateBudgetSchema = z
   });
 
 type Context = {
-  params: {
+  params: Promise<{
     id: string;
-  };
+  }>;
 };
 
 export async function PATCH(request: Request, { params }: Context) {
+  const { id } = await params;
   const viewer = await getCurrentViewer();
 
   if (!viewer) {
@@ -43,7 +44,7 @@ export async function PATCH(request: Request, { params }: Context) {
   }
 
   const budget = await prisma.budget.findUnique({
-    where: { id: params.id }
+    where: { id }
   });
 
   if (!budget) {
@@ -61,7 +62,7 @@ export async function PATCH(request: Request, { params }: Context) {
     const previousBudget = budget;
     const nextReleasedAmount = parsed.data.releasedAmount ?? Number(previousBudget.releasedAmount);
     const updatedBudget = await prisma.budget.update({
-      where: { id: params.id },
+      where: { id },
       data: {
         name: parsed.data.name,
         totalBudget: parsed.data.totalBudget,
@@ -106,6 +107,7 @@ export async function PATCH(request: Request, { params }: Context) {
 }
 
 export async function DELETE(_: Request, { params }: Context) {
+  const { id } = await params;
   const viewer = await getCurrentViewer();
 
   if (!viewer) {
@@ -117,7 +119,7 @@ export async function DELETE(_: Request, { params }: Context) {
   }
 
   const budget = await prisma.budget.findUnique({
-    where: { id: params.id },
+    where: { id },
     include: {
       _count: {
         select: {
@@ -139,7 +141,7 @@ export async function DELETE(_: Request, { params }: Context) {
   }
 
   await prisma.budget.delete({
-    where: { id: params.id }
+    where: { id }
   });
 
   await createAuditLog(prisma, {

src/app/api/expenses/[id]/approve/route.ts

@@ -18,12 +18,13 @@ const approvalSchema = z.object({
 });
 
 type Context = {
-  params: {
+  params: Promise<{
     id: string;
-  };
+  }>;
 };
 
 export async function POST(request: Request, { params }: Context) {
+  const { id } = await params;
   const viewer = await getCurrentViewer();
 
   if (!viewer) {
@@ -32,7 +33,7 @@ export async function POST(request: Request, { params }: Context) {
 
   const [expense, appSettings] = await Promise.all([
     prisma.expense.findUnique({
-      where: { id: params.id },
+      where: { id },
       include: {
         approvals: true
       }

src/app/api/expenses/[id]/documented/route.ts

@@ -13,12 +13,13 @@ const documentedSchema = z.object({
 });
 
 type Context = {
-  params: {
+  params: Promise<{
     id: string;
-  };
+  }>;
 };
 
 export async function POST(request: Request, { params }: Context) {
+  const { id } = await params;
   const viewer = await getCurrentViewer();
 
   if (!viewer) {
@@ -30,7 +31,7 @@ export async function POST(request: Request, { params }: Context) {
   }
 
   const expense = await prisma.expense.findUnique({
-    where: { id: params.id }
+    where: { id }
   });
 
   if (!expense) {
@@ -53,7 +54,7 @@ export async function POST(request: Request, { params }: Context) {
   }
 
   const updatedExpense = await prisma.expense.update({
-    where: { id: params.id },
+    where: { id },
     data: {
       proofUrl: parsed.data.proofUrl ?? expense.proofUrl,
       documentedAt: expense.documentedAt ?? new Date()

src/app/api/expenses/[id]/paid/route.ts

@@ -6,12 +6,13 @@ import prisma from "@/lib/prisma";
 import { getCurrentViewer } from "@/lib/session";
 
 type Context = {
-  params: {
+  params: Promise<{
     id: string;
-  };
+  }>;
 };
 
 export async function POST(_: Request, { params }: Context) {
+  const { id } = await params;
   const viewer = await getCurrentViewer();
 
   if (!viewer) {
@@ -23,7 +24,7 @@ export async function POST(_: Request, { params }: Context) {
   }
 
   const expense = await prisma.expense.findUnique({
-    where: { id: params.id }
+    where: { id }
   });
 
   if (!expense) {
@@ -35,7 +36,7 @@ export async function POST(_: Request, { params }: Context) {
   }
 
   const updatedExpense = await prisma.expense.update({
-    where: { id: params.id },
+    where: { id },
     data: {
       paidAt: expense.paidAt ?? new Date()
     }

src/app/api/expenses/[id]/route.ts

@@ -6,12 +6,13 @@ import prisma from "@/lib/prisma";
 import { getCurrentViewer } from "@/lib/session";
 
 type Context = {
-  params: {
+  params: Promise<{
     id: string;
-  };
+  }>;
 };
 
 export async function DELETE(_: Request, { params }: Context) {
+  const { id } = await params;
   const viewer = await getCurrentViewer();
 
   if (!viewer) {
@@ -19,7 +20,7 @@ export async function DELETE(_: Request, { params }: Context) {
   }
 
   const expense = await prisma.expense.findUnique({
-    where: { id: params.id }
+    where: { id }
   });
 
   if (!expense) {
@@ -41,7 +42,7 @@ export async function DELETE(_: Request, { params }: Context) {
   }
 
   await prisma.expense.delete({
-    where: { id: params.id }
+    where: { id }
   });
 
   await createAuditLog(prisma, {

src/app/api/periods/[id]/route.ts

@@ -1,4 +1,5 @@
 import { NextResponse } from "next/server";
+import { z } from "zod";
 
 import { snapshotPeriod } from "@/lib/audit-snapshots";
 import { createAuditLog } from "@/lib/audit-log";
@@ -7,12 +8,101 @@ import prisma from "@/lib/prisma";
 import { getCurrentViewer } from "@/lib/session";
 
 type Context = {
-  params: {
+  params: Promise<{
     id: string;
-  };
+  }>;
 };
 
+const periodSchema = z.object({
+  name: z.string().trim().min(2).max(80),
+  startsAt: z.coerce.date(),
+  endsAt: z.coerce.date()
+});
+
+export async function PATCH(request: Request, { params }: Context) {
+  const { id } = await params;
+  const viewer = await getCurrentViewer();
+
+  if (!viewer) {
+    return NextResponse.json({ error: "Nicht angemeldet." }, { status: 401 });
+  }
+
+  if (!canManageBudgets(viewer.role)) {
+    return NextResponse.json({ error: "Nur Vorstand oder Finanz-AG dürfen Zeiträume bearbeiten." }, { status: 403 });
+  }
+
+  const body = await request.json().catch(() => null);
+  const parsed = periodSchema.safeParse(body);
+
+  if (!parsed.success) {
+    return NextResponse.json({ error: "Bitte Zeitraumname sowie Start- und Enddatum korrekt angeben." }, { status: 400 });
+  }
+
+  if (parsed.data.endsAt < parsed.data.startsAt) {
+    return NextResponse.json({ error: "Das Enddatum muss nach dem Startdatum liegen." }, { status: 400 });
+  }
+
+  const period = await prisma.accountingPeriod.findUnique({
+    where: { id }
+  });
+
+  if (!period) {
+    return NextResponse.json({ error: "Zeitraum nicht gefunden." }, { status: 404 });
+  }
+
+  const existingPeriod = await prisma.accountingPeriod.findFirst({
+    where: {
+      id: {
+        not: id
+      },
+      name: {
+        equals: parsed.data.name,
+        mode: "insensitive"
+      }
+    }
+  });
+
+  if (existingPeriod) {
+    return NextResponse.json({ error: "Diesen Zeitraumnamen gibt es bereits." }, { status: 409 });
+  }
+
+  const updatedPeriod = await prisma.accountingPeriod.update({
+    where: {
+      id
+    },
+    data: {
+      name: parsed.data.name,
+      startsAt: parsed.data.startsAt,
+      endsAt: parsed.data.endsAt
+    }
+  });
+
+  await createAuditLog(prisma, {
+    actorId: viewer.id,
+    action: "period.update",
+    entityType: "period",
+    entityId: updatedPeriod.id,
+    entityLabel: updatedPeriod.name,
+    summary:
+      period.name !== updatedPeriod.name
+        ? `Zeitraum ${period.name} wurde auf ${updatedPeriod.name} aktualisiert.`
+        : `Zeitraum ${period.name} wurde aktualisiert.`,
+    metadata: {
+      startsAt: updatedPeriod.startsAt.toISOString(),
+      endsAt: updatedPeriod.endsAt.toISOString(),
+      rollback: {
+        kind: "period.update",
+        previous: snapshotPeriod(period),
+        next: snapshotPeriod(updatedPeriod)
+      }
+    }
+  });
+
+  return NextResponse.json({ period: updatedPeriod });
+}
+
 export async function DELETE(_: Request, { params }: Context) {
+  const { id } = await params;
   const viewer = await getCurrentViewer();
 
   if (!viewer) {
@@ -24,7 +114,7 @@ export async function DELETE(_: Request, { params }: Context) {
   }
 
   const period = await prisma.accountingPeriod.findUnique({
-    where: { id: params.id },
+    where: { id },
     include: {
       _count: {
         select: {
@@ -51,7 +141,7 @@ export async function DELETE(_: Request, { params }: Context) {
   }
 
   await prisma.accountingPeriod.delete({
-    where: { id: params.id }
+    where: { id }
   });
 
   await createAuditLog(prisma, {

src/app/api/users/[id]/password/route.ts

@@ -12,12 +12,13 @@ const passwordSchema = z.object({
 });
 
 type Context = {
-  params: {
+  params: Promise<{
     id: string;
-  };
+  }>;
 };
 
 export async function POST(request: Request, { params }: Context) {
+  const { id } = await params;
   const viewer = await getCurrentViewer();
 
   if (!viewer) {
@@ -36,7 +37,7 @@ export async function POST(request: Request, { params }: Context) {
   }
 
   const user = await prisma.user.findUnique({
-    where: { id: params.id },
+    where: { id },
     select: { id: true, username: true, passwordHash: true }
   });
 
@@ -47,7 +48,7 @@ export async function POST(request: Request, { params }: Context) {
   const passwordHash = await bcrypt.hash(parsed.data.password, 12);
 
   await prisma.user.update({
-    where: { id: params.id },
+    where: { id },
     data: {
       passwordHash
     }

src/app/api/users/[id]/route.ts

@@ -49,12 +49,13 @@ function serializeManagedUser(user: {
 }
 
 type Context = {
-  params: {
+  params: Promise<{
     id: string;
-  };
+  }>;
 };
 
 export async function PATCH(request: Request, { params }: Context) {
+  const { id } = await params;
   const viewer = await getCurrentViewer();
 
   if (!viewer) {
@@ -73,7 +74,7 @@ export async function PATCH(request: Request, { params }: Context) {
   }
 
   const user = await prisma.user.findUnique({
-    where: { id: params.id }
+    where: { id }
   });
 
   if (!user) {
@@ -113,7 +114,7 @@ export async function PATCH(request: Request, { params }: Context) {
   const previousSnapshot = snapshotUser(user);
 
   const updatedUser = await prisma.user.update({
-    where: { id: params.id },
+    where: { id },
     data: {
       role: parsed.data.role,
       workingGroupId,
@@ -163,6 +164,7 @@ export async function PATCH(request: Request, { params }: Context) {
 }
 
 export async function DELETE(_: Request, { params }: Context) {
+  const { id } = await params;
   const viewer = await getCurrentViewer();
 
   if (!viewer) {
@@ -173,12 +175,12 @@ export async function DELETE(_: Request, { params }: Context) {
     return NextResponse.json({ error: "Nur Vorstand oder Finanz-AG dürfen Nutzer löschen." }, { status: 403 });
   }
 
-  if (viewer.id === params.id) {
+  if (viewer.id === id) {
     return NextResponse.json({ error: "Du kannst dein eigenes Konto hier nicht löschen." }, { status: 400 });
   }
 
   const user = await prisma.user.findUnique({
-    where: { id: params.id },
+    where: { id },
     include: {
       _count: {
         select: {
@@ -211,7 +213,7 @@ export async function DELETE(_: Request, { params }: Context) {
   }
 
   await prisma.user.delete({
-    where: { id: params.id }
+    where: { id }
   });
 
   await createAuditLog(prisma, {

src/app/api/working-groups/[id]/route.ts

@@ -8,9 +8,9 @@ import prisma from "@/lib/prisma";
 import { getCurrentViewer } from "@/lib/session";
 
 type Context = {
-  params: {
+  params: Promise<{
     id: string;
-  };
+  }>;
 };
 
 const workingGroupSchema = z.object({
@@ -18,6 +18,7 @@ const workingGroupSchema = z.object({
 });
 
 export async function PATCH(request: Request, { params }: Context) {
+  const { id } = await params;
   const viewer = await getCurrentViewer();
 
   if (!viewer) {
@@ -36,7 +37,7 @@ export async function PATCH(request: Request, { params }: Context) {
   }
 
   const workingGroup = await prisma.workingGroup.findUnique({
-    where: { id: params.id }
+    where: { id }
   });
 
   if (!workingGroup) {
@@ -46,7 +47,7 @@ export async function PATCH(request: Request, { params }: Context) {
   const existingWorkingGroup = await prisma.workingGroup.findFirst({
     where: {
       id: {
-        not: params.id
+        not: id
       },
       name: {
         equals: parsed.data.name,
@@ -61,7 +62,7 @@ export async function PATCH(request: Request, { params }: Context) {
 
   const updatedWorkingGroup = await prisma.workingGroup.update({
     where: {
-      id: params.id
+      id
     },
     data: {
       name: parsed.data.name
@@ -88,6 +89,7 @@ export async function PATCH(request: Request, { params }: Context) {
 }
 
 export async function DELETE(_: Request, { params }: Context) {
+  const { id } = await params;
   const viewer = await getCurrentViewer();
 
   if (!viewer) {
@@ -99,7 +101,7 @@ export async function DELETE(_: Request, { params }: Context) {
   }
 
   const workingGroup = await prisma.workingGroup.findUnique({
-    where: { id: params.id },
+    where: { id },
     include: {
       _count: {
         select: {
@@ -126,7 +128,7 @@ export async function DELETE(_: Request, { params }: Context) {
   }
 
   await prisma.workingGroup.delete({
-    where: { id: params.id }
+    where: { id }
   });
 
   await createAuditLog(prisma, {

src/components/dashboard/dashboard-shell.tsx

@@ -110,6 +110,12 @@ type PeriodFormState = {
   copyBudgetsFromPeriodId: string;
 };
 
+type PeriodEditFormState = {
+  name: string;
+  startsAt: string;
+  endsAt: string;
+};
+
 type DashboardMessage = {
   type: "success" | "error";
   text: string;
@@ -191,6 +197,22 @@ function getSuggestedPeriodDraft(currentPeriod: DashboardAccountingPeriod | unde
   };
 }
 
+function getPeriodEditDraft(period: DashboardAccountingPeriod | null | undefined): PeriodEditFormState {
+  if (!period) {
+    return {
+      name: "",
+      startsAt: "",
+      endsAt: ""
+    };
+  }
+
+  return {
+    name: period.name,
+    startsAt: toDateInputValue(period.startsAt),
+    endsAt: toDateInputValue(period.endsAt)
+  };
+}
+
 function generatePassword(length = 14) {
   const alphabet = "ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz23456789!@$%";
   const cryptoSource = globalThis.crypto;
@@ -297,6 +319,7 @@ export function DashboardShell({
   const [userDrafts, setUserDrafts] = useState<Record<string, ManagedUserDraft>>({});
   const [approvalThresholdDraft, setApprovalThresholdDraft] = useState(approvalThreshold.toFixed(2));
   const [periodForm, setPeriodForm] = useState<PeriodFormState>(getSuggestedPeriodDraft(currentPeriod));
+  const [periodEditForm, setPeriodEditForm] = useState<PeriodEditFormState>(getPeriodEditDraft(currentPeriod));
   useEffect(() => {
     if (visibleGroups.length === 0) {
       setSelectedMobileGroupId("");
@@ -314,6 +337,11 @@ export function DashboardShell({
     setPeriodForm(getSuggestedPeriodDraft(currentPeriod));
   }, [currentPeriod, currentPeriodId]);
 
+  useEffect(() => {
+    const selectedPeriod = accountingPeriods.find((period) => period.id === selectedCurrentPeriodId) ?? currentPeriod ?? null;
+    setPeriodEditForm(getPeriodEditDraft(selectedPeriod));
+  }, [accountingPeriods, currentPeriod, selectedCurrentPeriodId]);
+
   useEffect(() => {
     if (!desktopSections.some((section) => section.value === desktopSection)) {
       setDesktopSection("overview");
@@ -468,6 +496,11 @@ export function DashboardShell({
     ) ?? 0;
   const selectedPeriodForManagement =
     accountingPeriods.find((period) => period.id === selectedCurrentPeriodId) ?? currentPeriod ?? null;
+  const periodEditDirty =
+    selectedPeriodForManagement !== null &&
+    (periodEditForm.name.trim() !== selectedPeriodForManagement.name ||
+      periodEditForm.startsAt !== toDateInputValue(selectedPeriodForManagement.startsAt) ||
+      periodEditForm.endsAt !== toDateInputValue(selectedPeriodForManagement.endsAt));
 
   function getManagedUserDraft(user: DashboardManagedUser): ManagedUserDraft {
     return userDrafts[user.id] ?? {
@@ -810,6 +843,27 @@ export function DashboardShell({
     }, "Neuer Abrechnungszeitraum wurde angelegt.");
   }
 
+  async function handleSavePeriod(event: FormEvent<HTMLFormElement>) {
+    event.preventDefault();
+
+    if (!selectedPeriodForManagement) {
+      setMessage({ type: "error", text: "Bitte zuerst einen Zeitraum auswählen." });
+      return;
+    }
+
+    await runAction(async () => {
+      await parseResponse(
+        await fetch(`/api/periods/${selectedPeriodForManagement.id}`, {
+          method: "PATCH",
+          headers: {
+            "Content-Type": "application/json"
+          },
+          body: JSON.stringify(periodEditForm)
+        })
+      );
+    }, `Zeitraum ${periodEditForm.name.trim() || selectedPeriodForManagement.name} wurde aktualisiert.`);
+  }
+
   async function handleDeletePeriod(periodId: string, periodName: string) {
     await runAction(async () => {
       await parseResponse(
@@ -1222,6 +1276,55 @@ export function DashboardShell({
           : "Leere, nicht aktive Zeiträume lassen sich hier wieder entfernen."}
       </Typography>
 
+      <Box component="form" onSubmit={handleSavePeriod} sx={nestedPanelSx}>
+        <Stack spacing={1.4}>
+          <Typography variant="subtitle1" sx={{ fontWeight: 700 }}>
+            Ausgewählten Zeitraum bearbeiten
+          </Typography>
+          <TextField
+            label="Zeitraum-Name"
+            value={periodEditForm.name}
+            onChange={(event) => setPeriodEditForm((current) => ({ ...current, name: event.target.value }))}
+            required
+            fullWidth
+            disabled={!selectedPeriodForManagement}
+          />
+          <Stack direction={{ xs: "column", sm: "row" }} gap={1.2}>
+            <TextField
+              label="Von"
+              type="date"
+              value={periodEditForm.startsAt}
+              onChange={(event) => setPeriodEditForm((current) => ({ ...current, startsAt: event.target.value }))}
+              InputLabelProps={{ shrink: true }}
+              required
+              fullWidth
+              disabled={!selectedPeriodForManagement}
+            />
+            <TextField
+              label="Bis"
+              type="date"
+              value={periodEditForm.endsAt}
+              onChange={(event) => setPeriodEditForm((current) => ({ ...current, endsAt: event.target.value }))}
+              InputLabelProps={{ shrink: true }}
+              required
+              fullWidth
+              disabled={!selectedPeriodForManagement}
+            />
+          </Stack>
+          <Typography variant="body2" color="text.secondary">
+            {"Abo-Berechnungen nutzen danach direkt den neuen Zeitraum."}
+          </Typography>
+          <Button
+            type="submit"
+            variant="outlined"
+            startIcon={<EditRoundedIcon />}
+            disabled={busy || !selectedPeriodForManagement || !periodEditDirty}
+          >
+            Zeitraum speichern
+          </Button>
+        </Stack>
+      </Box>
+
       <Box component="form" onSubmit={handleCreatePeriod} sx={nestedPanelSx}>
         <Stack spacing={1.4}>
           <Typography variant="subtitle1" sx={{ fontWeight: 700 }}>
@@ -2412,5 +2515,3 @@ export function DashboardShell({
     </Box>
   );
 }
-
-