Reports/Export builder (CSV/XLSX), plus a security fix pass

Adds the Berichte export pipeline (/api/export/{report,events,employees})
with shared CSV/XLSX writers in lib/export.ts and lib/reports-data.ts.

Security pass alongside it: sanitize .or() search terms against PostgREST
filter injection, sanitize spreadsheet cells against CSV/Excel formula
injection, stop leaking raw DB error messages to clients, harden the
service-role client with server-only, add baseline security headers, and
bump the vulnerable nested postcss via an override.
This commit is contained in:
2026-07-15 20:34:27 +02:00
parent 901c5c426e
commit f96773da0f
21 changed files with 2323 additions and 279 deletions

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import { NextResponse, type NextRequest } from "next/server";
import { exportFilename, exportResponseHeaders, toCsv, toXlsx, type ExportColumn } from "@/lib/export";
import { deriveStatusAsOf, parseStatuses, type OrgLookups } from "@/lib/reports";
import { loadOrgLookups, type ReportFilters } from "@/lib/reports-data";
import { createClient } from "@/lib/supabase/server";
import type { Database, EmploymentType } from "@/lib/supabase/types";
type EmployeeRow = Database["public"]["Tables"]["employees"]["Row"];
// Full raw data dump — every column on `employees`, not just the fields a
// pivot report groups by. Respects the same division/location/status/
// employment filters as the Berichte page. With `asOf` (Stichtag), status
// filtering happens against the *derived* status as of that date rather
// than the live `status` column — see deriveStatusAsOf.
export async function GET(request: NextRequest) {
const supabase = await createClient();
const {
data: { user },
} = await supabase.auth.getUser();
if (!user) return NextResponse.json({ error: "Nicht angemeldet." }, { status: 401 });
const { data: profile } = await supabase.from("profiles").select("role, is_active").eq("id", user.id).maybeSingle();
if (profile?.role !== "hr" || profile?.is_active !== true) {
return NextResponse.json({ error: "Nicht berechtigt." }, { status: 403 });
}
const params = request.nextUrl.searchParams;
const format = params.get("format") === "xlsx" ? "xlsx" : "csv";
const asOf = params.get("asOf") ?? undefined;
const filters: ReportFilters = {
division: params.get("division") ?? undefined,
location: params.get("location") ?? undefined,
status: params.get("status") ?? undefined,
employment: params.get("employment") ?? undefined,
};
const statuses = parseStatuses(filters.status);
let query = supabase.from("employees").select("*").order("last_name");
if (filters.division) query = query.eq("division_id", filters.division);
if (filters.location) query = query.eq("location_id", filters.location);
if (filters.employment) query = query.eq("employment_type", filters.employment as EmploymentType);
if (!asOf) query = query.in("status", statuses);
const [{ data: employees, error }, { lookups }, { data: allEmployees }] = await Promise.all([
query,
loadOrgLookups(supabase),
supabase.from("employees").select("id, first_name, last_name"),
]);
if (error) {
console.error("employees export query failed:", error);
return NextResponse.json({ error: "Interner Fehler." }, { status: 500 });
}
const managerName = new Map((allEmployees ?? []).map((e) => [e.id, `${e.first_name} ${e.last_name}`]));
const rows = asOf ? (employees ?? []).filter((e) => statuses.includes(deriveStatusAsOf(e, asOf))) : (employees ?? []);
const columns = employeeExportColumns(lookups, managerName, asOf);
const filename = exportFilename("mitarbeiter-export", format);
const body = format === "xlsx" ? await toXlsx(rows, columns, "Mitarbeiter") : toCsv(rows, columns);
// TS 5.9's Uint8Array<ArrayBufferLike> vs DOM's BlobPart/ArrayBuffer<> generic
// mismatch (microsoft/TypeScript#59417) — a real Uint8Array works fine here.
return new NextResponse(new Blob([body as BlobPart]), { headers: exportResponseHeaders(filename, format) });
}
function employeeExportColumns(lookups: OrgLookups, managerName: Map<string, string>, asOf?: string): ExportColumn<EmployeeRow>[] {
const columns: ExportColumn<EmployeeRow>[] = [
{ header: "Pers.-Nr.", get: (e) => e.personnel_number },
{ header: "Vorname", get: (e) => e.first_name },
{ header: "Nachname", get: (e) => e.last_name },
{ header: "Geschlecht", get: (e) => (e.gender === "m" ? "männlich" : "weiblich") },
{ header: "Geburtsdatum", get: (e) => e.birth_date, kind: "date" },
{ header: "SV-Nummer", get: (e) => e.sv_nummer },
{ header: "Staatsbürgerschaft", get: (e) => e.nationality },
{ header: "Adresse", get: (e) => e.address },
{ header: "Wohnsitzland", get: (e) => e.address_country },
{ header: "E-Mail", get: (e) => e.email },
{ header: "Telefon", get: (e) => e.phone },
{ header: "Bereich", get: (e) => lookups.divisionName.get(e.division_id) ?? "" },
{ header: "Abteilung", get: (e) => (e.team_id ? (lookups.departmentNameByTeam.get(e.team_id) ?? "") : "") },
{ header: "Team", get: (e) => (e.team_id ? (lookups.teamName.get(e.team_id) ?? "") : "") },
{ header: "Standort", get: (e) => lookups.locationName.get(e.location_id) ?? "" },
{ header: "Position", get: (e) => e.job_title },
{ header: "Vorgesetzte:r", get: (e) => (e.manager_id ? (managerName.get(e.manager_id) ?? "") : "") },
{ header: "Führungskraft", get: (e) => e.is_lead },
{ header: "Org-Level", get: (e) => e.org_level },
{ header: "Beschäftigungsausmaß", get: (e) => e.employment_type },
{ header: "Wochenstunden", get: (e) => e.weekly_hours },
{ header: "Vertragsart", get: (e) => e.contract_type },
{ header: "Befristet bis", get: (e) => e.contract_end_date, kind: "date" },
{ header: "Paygrade", get: (e) => e.paygrade },
{ header: "Herkunft", get: (e) => e.source },
{ header: "Status", get: (e) => e.status },
{ header: "Eintrittsdatum", get: (e) => e.entry_date, kind: "date" },
{ header: "Austrittsdatum", get: (e) => e.exit_date, kind: "date" },
{ header: "Austrittsgrund", get: (e) => e.exit_reason },
{ header: "Karenzbeginn", get: (e) => e.karenz_start_date, kind: "date" },
{ header: "Karenz-Rückkehrdatum", get: (e) => e.karenz_return_date, kind: "date" },
];
if (asOf) {
const statusIndex = columns.findIndex((c) => c.header === "Status");
columns.splice(statusIndex + 1, 0, { header: `Status zum Stichtag (${asOf})`, get: (e) => deriveStatusAsOf(e, asOf) });
}
return columns;
}

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import { NextResponse, type NextRequest } from "next/server";
import { exportFilename, exportResponseHeaders, toCsv, toXlsx, type ExportColumn } from "@/lib/export";
import { EVENT_TYPE_LABELS, type OrgLookups, type ReportEvent } from "@/lib/reports";
import { loadEventHistory, loadOrgLookups } from "@/lib/reports-data";
import { createClient } from "@/lib/supabase/server";
import type { HistoryEventType } from "@/lib/supabase/types";
// Full raw event-log dump — one row per employee_history entry in the
// selected period (default: current year), every event type unless one is
// picked, org columns resolved from each affected employee's current
// placement (see loadEventHistory).
export async function GET(request: NextRequest) {
const supabase = await createClient();
const {
data: { user },
} = await supabase.auth.getUser();
if (!user) return NextResponse.json({ error: "Nicht angemeldet." }, { status: 401 });
const { data: profile } = await supabase.from("profiles").select("role, is_active").eq("id", user.id).maybeSingle();
if (profile?.role !== "hr" || profile?.is_active !== true) {
return NextResponse.json({ error: "Nicht berechtigt." }, { status: 403 });
}
const params = request.nextUrl.searchParams;
const format = params.get("format") === "xlsx" ? "xlsx" : "csv";
const eventType = (params.get("eventType") as HistoryEventType) || undefined;
const from = params.get("from") ?? undefined;
const to = params.get("to") ?? undefined;
const [{ lookups }, events] = await Promise.all([
loadOrgLookups(supabase),
loadEventHistory(supabase, {
eventType,
division: params.get("division") ?? undefined,
location: params.get("location") ?? undefined,
from,
to,
}),
]);
const columns = eventExportColumns(lookups);
const filename = exportFilename(`ereignisse-${eventType ?? "alle"}`, format);
const body = format === "xlsx" ? await toXlsx(events, columns, "Ereignisse") : toCsv(events, columns);
// TS 5.9's Uint8Array<ArrayBufferLike> vs DOM's BlobPart/ArrayBuffer<> generic
// mismatch (microsoft/TypeScript#59417) — a real Uint8Array works fine here.
return new NextResponse(new Blob([body as BlobPart]), { headers: exportResponseHeaders(filename, format) });
}
function eventExportColumns(lookups: OrgLookups): ExportColumn<ReportEvent>[] {
return [
{ header: "Datum", get: (e) => e.event_date, kind: "date" },
{ header: "Ereignistyp", get: (e) => EVENT_TYPE_LABELS[e.event_type] ?? e.event_type },
{ header: "Vorname", get: (e) => e.first_name },
{ header: "Nachname", get: (e) => e.last_name },
{ header: "Position", get: (e) => e.job_title },
{ header: "Bereich", get: (e) => lookups.divisionName.get(e.division_id) ?? "" },
{ header: "Abteilung", get: (e) => (e.team_id ? (lookups.departmentNameByTeam.get(e.team_id) ?? "") : "") },
{ header: "Team", get: (e) => (e.team_id ? (lookups.teamName.get(e.team_id) ?? "") : "") },
{ header: "Standort", get: (e) => lookups.locationName.get(e.location_id) ?? "" },
{ header: "Beschreibung", get: (e) => e.description },
];
}

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import { NextResponse, type NextRequest } from "next/server";
import { exportFilename, exportResponseHeaders, toCsv, toXlsx, type ExportColumn } from "@/lib/export";
import {
aggregateEvents,
aggregateReport,
EVENT_GROUP_LABELS,
GROUP_LABELS,
MEASURE_LABELS,
sumValues,
totalForRows,
type EventGroupDimension,
type GroupDimension,
type Measure,
type ReportRow,
} from "@/lib/reports";
import { loadEventHistory, loadOrgLookups, loadSnapshotEmployees } from "@/lib/reports-data";
import { createClient } from "@/lib/supabase/server";
import type { HistoryEventType } from "@/lib/supabase/types";
// Exports exactly the pivot table currently on screen (same mode/measure or
// event-type/group/split/filters, read from the query string the client
// already keeps in the URL) as a flat table — one row per group, one column
// per split value if a split is active.
export async function GET(request: NextRequest) {
const supabase = await createClient();
const {
data: { user },
} = await supabase.auth.getUser();
if (!user) return NextResponse.json({ error: "Nicht angemeldet." }, { status: 401 });
const { data: profile } = await supabase.from("profiles").select("role, is_active").eq("id", user.id).maybeSingle();
if (profile?.role !== "hr" || profile?.is_active !== true) {
return NextResponse.json({ error: "Nicht berechtigt." }, { status: 403 });
}
const params = request.nextUrl.searchParams;
const format = params.get("format") === "xlsx" ? "xlsx" : "csv";
const mode = params.get("mode") === "events" ? "events" : "snapshot";
const { lookups } = await loadOrgLookups(supabase);
let rows: ReportRow[];
let columns: ExportColumn<ReportRow>[];
let filenameBase: string;
if (mode === "events") {
const group = (params.get("group") as EventGroupDimension) || "event_type";
const split = (params.get("split") as EventGroupDimension) || null;
const eventType = (params.get("eventType") as HistoryEventType) || undefined;
const events = await loadEventHistory(supabase, {
eventType,
division: params.get("division") ?? undefined,
location: params.get("location") ?? undefined,
from: params.get("from") ?? undefined,
to: params.get("to") ?? undefined,
});
rows = aggregateEvents(events, group, split, lookups);
columns = eventReportColumns(rows, group, split, sumValues(rows));
filenameBase = `ereignisse-${eventType ?? "alle"}-${group}`;
} else {
const measure = (params.get("measure") as Measure) || "headcount";
const group = (params.get("group") as GroupDimension) || "division";
const split = (params.get("split") as GroupDimension) || null;
const asOf = params.get("asOf") ?? undefined;
const employees = await loadSnapshotEmployees(supabase, {
division: params.get("division") ?? undefined,
location: params.get("location") ?? undefined,
status: params.get("status") ?? undefined,
employment: params.get("employment") ?? undefined,
asOf,
});
rows = aggregateReport(employees, measure, group, split, lookups, asOf);
columns = snapshotReportColumns(rows, measure, group, split, totalForRows(rows, measure));
filenameBase = `bericht-${measure}-${group}`;
}
const filename = exportFilename(filenameBase, format);
const body = format === "xlsx" ? await toXlsx(rows, columns, "Bericht") : toCsv(rows, columns);
// TS 5.9's Uint8Array<ArrayBufferLike> vs DOM's BlobPart/ArrayBuffer<> generic
// mismatch (microsoft/TypeScript#59417) — a real Uint8Array works fine here.
return new NextResponse(new Blob([body as BlobPart]), { headers: exportResponseHeaders(filename, format) });
}
function snapshotReportColumns(
rows: ReportRow[],
measure: Measure,
group: GroupDimension,
split: GroupDimension | null,
total: number
): ExportColumn<ReportRow>[] {
const columns: ExportColumn<ReportRow>[] = [{ header: GROUP_LABELS[group], get: (r) => r.key }];
if (split) {
const splitKeys = Array.from(new Set(rows.flatMap((r) => r.split?.map((s) => s.key) ?? [])));
for (const key of splitKeys) {
columns.push({ header: key, get: (r) => Math.round((r.split?.find((s) => s.key === key)?.value ?? 0) * 100) / 100 });
}
}
columns.push(
{ header: MEASURE_LABELS[measure], get: (r) => Math.round(r.value * 100) / 100 },
{ header: "Anzahl", get: (r) => r.count },
{ header: "Anteil (%)", get: (r) => (total > 0 ? Math.round((r.value / total) * 1000) / 10 : 0) }
);
return columns;
}
function eventReportColumns(
rows: ReportRow[],
group: EventGroupDimension,
split: EventGroupDimension | null,
total: number
): ExportColumn<ReportRow>[] {
const columns: ExportColumn<ReportRow>[] = [{ header: EVENT_GROUP_LABELS[group], get: (r) => r.key }];
if (split) {
const splitKeys = Array.from(new Set(rows.flatMap((r) => r.split?.map((s) => s.key) ?? [])));
for (const key of splitKeys) {
columns.push({ header: key, get: (r) => r.split?.find((s) => s.key === key)?.value ?? 0 });
}
}
columns.push(
{ header: "Anzahl", get: (r) => r.count },
{ header: "Anteil (%)", get: (r) => (total > 0 ? Math.round((r.value / total) * 1000) / 10 : 0) }
);
return columns;
}