refactor login page, change routes to token-based, add service classes

src/lib/server/vorgangService.ts

@@ -0,0 +1,68 @@
+import { fail, redirect } from '@sveltejs/kit';
+import { client } from '$lib/minio';
+import { checkIfExactDirectoryExists } from './s3ClientService';
+
+/**
+ * 
+ * @param request 
+ * @returns 
+ */
+export const getVorgangByCaseNumber = async ( request: Request) => {
+        const data = await request.formData();
+        const caseNumber = data.get('caseNumber');
+        const user_token = data.get('token');
+
+        if (!caseNumber) {
+            return fail(400, {
+                success: false,
+                caseNumber,
+                error: { message: 'Die Vorgangsnummer darf nicht leer sein.' }
+            });
+        }
+
+        if (typeof caseNumber === 'string' && !(await checkIfExactDirectoryExists(caseNumber))) {
+            return fail(400, {
+                success: false,
+                caseNumber,
+                error: { message: 'Die Vorgangsnummer existiert in dieser Anwendung nicht.' }
+            });
+        }
+
+
+        const token = await getTokenOrNull(caseNumber);
+
+        if (token && token != user_token) {
+            return fail(400, {
+                success: false,
+                caseNumber,
+                error: { message: 'Der Token ist falsch.' }
+            });
+        }
+
+        redirect(303, `/list/${caseNumber}`);
+    }
+
+
+const getTokenOrNull = async (vorgang) => {
+    const code_name = '__perm__';
+    const obj_path = `${vorgang}/${code_name}`;
+
+    let resp = null;
+    let code_saved = '';
+
+    try {
+        resp = await client.getObject('tatort', obj_path);
+        
+        code_saved = await new Response(resp).text();
+    } catch (error) {
+        if (error.name == 'S3Error') {
+            resp = null;
+        }
+    }
+
+    if (resp != null) {
+        return code_saved;
+    } else {
+        return null;
+    }
+}