Add delete function

Signed-off-by: yubiuser <ckoenig@posteo.de>

scripts/pi-hole/php/network.php

@@ -0,0 +1,82 @@
+
+<?php
+/* Pi-hole: A black hole for Internet advertisements
+*  (c) 2021 Pi-hole, LLC (https://pi-hole.net)
+*  Network-wide ad blocking via your own hardware.
+*
+*  This file is copyright under the latest version of the EUPL.
+*  Please see LICENSE file for your rights under this license. */
+
+require_once('auth.php');
+
+// Authentication checks
+if (!isset($api)) {
+    if (isset($_POST['token'])) {
+        check_cors();
+        check_csrf($_POST['token']);
+    } else {
+        log_and_die('Not allowed (login session invalid or expired, please relogin on the Pi-hole dashboard)!');
+    }
+}
+
+$reload = false;
+
+require_once('func.php');
+require_once('database.php');
+$QueriesDB = getQueriesDBFilename();
+$db = SQLite3_connect($QueriesDB, SQLITE3_OPEN_READWRITE);
+
+function JSON_success($message = null)
+{
+    header('Content-type: application/json');
+    echo json_encode(array('success' => true, 'message' => $message));
+}
+
+function JSON_error($message = null)
+{
+    header('Content-type: application/json');
+    $response = array('success' => false, 'message' => $message);
+    if (isset($_POST['action'])) {
+        array_push($response, array('action' => $_POST['action']));
+    }
+    echo json_encode($response);
+}
+
+if ($_POST['action'] == 'delete_network_entry' && isset($_POST['id'])) {
+// Delete netwwork and network_addresses table entry identified by ID
+    try {
+
+        $stmt = $db->prepare('DELETE FROM network_addresses WHERE network_id=:id');
+        if (!$stmt) {
+            throw new Exception('While preparing message statement: ' . $db->lastErrorMsg());
+        }
+
+        if (!$stmt->bindValue(':id', intval($_POST['id']), SQLITE3_INTEGER)) {
+            throw new Exception('While binding id to message statement: ' . $db->lastErrorMsg());
+        }
+
+        if (!$stmt->execute()) {
+            throw new Exception('While executing message statement: ' . $db->lastErrorMsg());
+        }
+
+        $stmt = $db->prepare('DELETE FROM network WHERE id=:id');
+        if (!$stmt) {
+            throw new Exception('While preparing message statement: ' . $db->lastErrorMsg());
+        }
+
+        if (!$stmt->bindValue(':id', intval($_POST['id']), SQLITE3_INTEGER)) {
+            throw new Exception('While binding id to message statement: ' . $db->lastErrorMsg());
+        }
+
+        if (!$stmt->execute()) {
+            throw new Exception('While executing message statement: ' . $db->lastErrorMsg());
+        }
+
+        $reload = true;
+        JSON_success();
+    } catch (\Exception $ex) {
+        JSON_error($ex->getMessage());
+    }
+} else {
+    log_and_die('Requested action not supported!');
+}