Feature: Validate JSON before uploading

lang/es.lang.json

@@ -575,7 +575,7 @@
             "YieldDayCorrection": "Corrección de Rendimiento Diario",
             "YieldDayCorrectionHint": "Sumar el rendimiento diario incluso si el inversor se reinicia. El valor se restablecerá a medianoche"
         },
-        "configadmin": {
+        "fileadmin": {
             "ConfigManagement": "Gestión de Configuración",
             "BackupHeader": "Copia de seguridad: Copia de Seguridad del Archivo de Configuración",
             "BackupConfig": "Copia de seguridad del archivo de configuración",
@@ -592,7 +592,9 @@
             "FactoryReset": "Restablecimiento de Fábrica",
             "ResetMsg": "¿Está seguro de que desea eliminar la configuración actual y restablecer todas las configuraciones a sus valores predeterminados de fábrica?",
             "ResetConfirm": "Restablecimiento de Fábrica",
-            "Cancel": "@:base.Cancel"
+            "Cancel": "@:base.Cancel",
+            "InvalidJson": "JSON file is formatted incorrectly.",
+            "InvalidJsonContent": "JSON file has the wrong content."
         },
         "login": {
             "Login": "Iniciar Sesión",

lang/it.lang.json

@@ -575,7 +575,7 @@
             "YieldDayCorrection": "Correzione energia giornaliera",
             "YieldDayCorrectionHint": "Aggiungi questo valore all'energia giornaliera se l'inverter è stato riavviato. Questo valore sarò resettato a mezzanotte"
         },
-        "configadmin": {
+        "fileadmin": {
             "ConfigManagement": "Configurazione Gestione",
             "BackupHeader": "Backup: Configurazione File Backup",
             "BackupConfig": "Esegui il backup del file:",
@@ -592,7 +592,9 @@
             "FactoryReset": "Factory Reset",
             "ResetMsg": "Sei sicuro di voler cancellare la configurazione attuale e applicare la configurazione di fabbrica?",
             "ResetConfirm": "Factory Reset!",
-            "Cancel": "@:base.Cancel"
+            "Cancel": "@:base.Cancel",
+            "InvalidJson": "JSON file is formatted incorrectly.",
+            "InvalidJsonContent": "JSON file has the wrong content."
         },
         "login": {
             "Login": "Login",

webapp/src/locales/de.json

@@ -582,7 +582,9 @@
         "Name": "Name",
         "Size": "Größe",
         "Action": "Aktion",
-        "Cancel": "@:base.Cancel"
+        "Cancel": "@:base.Cancel",
+        "InvalidJson": "JSON-Datei ist falsch formatiert.",
+        "InvalidJsonContent": "JSON-Datei hat den falschen Inhalt."
     },
     "login": {
         "Login": "Anmeldung",

webapp/src/locales/en.json

@@ -582,7 +582,9 @@
         "Name": "Name",
         "Size": "Size",
         "Action": "Action",
-        "Cancel": "@:base.Cancel"
+        "Cancel": "@:base.Cancel",
+        "InvalidJson": "JSON file is formatted incorrectly.",
+        "InvalidJsonContent": "JSON file has the wrong content."
     },
     "login": {
         "Login": "Login",

webapp/src/locales/fr.json

@@ -564,7 +564,9 @@
         "Name": "Name",
         "Size": "Size",
         "Action": "Action",
-        "Cancel": "@:base.Cancel"
+        "Cancel": "@:base.Cancel",
+        "InvalidJson": "JSON file is formatted incorrectly.",
+        "InvalidJsonContent": "JSON file has the wrong content."
     },
     "login": {
         "Login": "Connexion",

webapp/src/utils/structure.ts

@@ -0,0 +1,25 @@
+export type Schema = {
+    [key: string]: 'string' | 'number' | 'boolean' | 'object' | 'array' | Schema;
+};
+
+/* eslint-disable  @typescript-eslint/no-explicit-any */
+export function hasStructure(obj: any, schema: Schema): boolean {
+    if (typeof obj !== 'object' || obj === null) return false;
+
+    for (const key in schema) {
+        const expectedType = schema[key];
+
+        if (['string', 'number', 'boolean'].includes(expectedType as string)) {
+            if (typeof obj[key] !== expectedType) return false;
+        } else if (expectedType === 'object') {
+            if (typeof obj[key] !== 'object' || obj[key] === null) return false;
+        } else if (expectedType === 'array') {
+            if (!Array.isArray(obj[key])) return false;
+        } else if (typeof expectedType === 'object') {
+            // Recursively check nested objects
+            if (!hasStructure(obj[key], expectedType as Schema)) return false;
+        }
+    }
+
+    return true;
+}

webapp/src/views/ConfigAdminView.vue

@@ -57,17 +57,23 @@
             <div v-else-if="!uploading">
                 <div class="row g-3 align-items-center form-group pt-2">
                     <div class="col-sm">
-                        <select class="form-select" v-model="restoreFileSelect">
-                            <option selected value="config.json">Main Config (config.json)</option>
-                            <option selected value="pin_mapping.json">Pin Mapping (pin_mapping.json)</option>
-                            <option selected value="pack.lang.json">Language Pack (pack.lang.json)</option>
+                        <select class="form-select" v-model="restoreFileSelect" @change="onUploadFileChange">
+                            <option v-for="file in restoreList" :key="file.name" :value="file.name">
+                                {{ file.descr }}
+                            </option>
                         </select>
                     </div>
                     <div class="col-sm">
-                        <input class="form-control" type="file" ref="file" accept=".json" />
+                        <input
+                            class="form-control"
+                            type="file"
+                            ref="file"
+                            accept=".json"
+                            @change="onUploadFileChange"
+                        />
                     </div>
                     <div class="col-sm">
-                        <button class="btn btn-primary" @click="onUpload">
+                        <button class="btn btn-primary" @click="onUpload" :disabled="!isValidJson">
                             {{ $t('fileadmin.Restore') }}
                         </button>
                     </div>
@@ -132,6 +138,8 @@ import ModalDialog from '@/components/ModalDialog.vue';
 import type { AlertResponse } from '@/types/AlertResponse';
 import type { FileInfo } from '@/types/File';
 import { authHeader, handleResponse } from '@/utils/authentication';
+import type { Schema } from '@/utils/structure';
+import { hasStructure } from '@/utils/structure';
 import { waitRestart } from '@/utils/waitRestart';
 import * as bootstrap from 'bootstrap';
 import {
@@ -169,6 +177,24 @@ export default defineComponent({
             UploadError: '',
             UploadSuccess: false,
             restoreFileSelect: 'config.json',
+            restoreList: [
+                {
+                    name: 'config.json',
+                    descr: 'Main Config (config.json)',
+                    template: { cfg: 'object' } as Schema,
+                },
+                {
+                    name: 'pin_mapping.json',
+                    descr: 'Pin Mapping (pin_mapping.json)',
+                    template: { name: 'string' } as Schema,
+                },
+                {
+                    name: 'pack.lang.json',
+                    descr: 'Language Pack (pack.lang.json)',
+                    template: { meta: 'object' } as Schema,
+                },
+            ],
+            isValidJson: false,
         };
     },
     mounted() {
@@ -230,6 +256,43 @@ export default defineComponent({
             this.callFileApiEndpoint('delete', JSON.stringify({ file: this.selectedFile.name }));
             this.onCloseModal(this.modalDelete);
         },
+        onUploadFileChange() {
+            const target = this.$refs.file as HTMLInputElement;
+            if (target.files !== null) {
+                this.file = target.files[0];
+            }
+            if (!this.file) return;
+
+            // Read the file content
+            const reader = new FileReader();
+            reader.onload = (e) => {
+                try {
+                    const checkTemplate = this.restoreList.find((i) => i.name == this.restoreFileSelect)?.template;
+                    // Parse the file content as JSON
+                    let checkValue = JSON.parse(e.target?.result as string);
+                    if (Array.isArray(checkValue)) {
+                        checkValue = checkValue[0];
+                    }
+
+                    if (checkValue && checkTemplate && hasStructure(checkValue, checkTemplate)) {
+                        this.isValidJson = true;
+                        this.alert.show = false;
+                    } else {
+                        this.isValidJson = false;
+                        this.alert.message = this.$t('fileadmin.InvalidJsonContent');
+                    }
+                } catch {
+                    this.isValidJson = false;
+                    this.alert.message = this.$t('fileadmin.InvalidJson');
+                }
+
+                if (!this.isValidJson) {
+                    this.alert.type = 'warning';
+                    this.alert.show = true;
+                }
+            };
+            reader.readAsText(this.file);
+        },
         onUpload() {
             this.uploading = true;
             const formData = new FormData();