1.3.x almost finished backport

database/backported/1.3-beta2/changeAccountUsername.php

@@ -0,0 +1,52 @@
+<?php
+$conn = newConnection();
+
+$username = isset($_POST['username']) ? $_POST['username'] : '';
+$current_password = isset($_POST['currentPassword']) ? $_POST['currentPassword'] : '';
+$new_username = isset($_POST['newUsername']) ? $_POST['newUsername'] : '';
+
+if (empty($username) || empty($new_username) || empty($current_password)) {
+    die("-2");
+}
+
+if (!preg_match('/^[a-zA-Z0-9]{3,16}$/', $new_username)) {
+    die("-3");
+}
+
+$stmt = $conn->prepare("SELECT * FROM users WHERE username = ?");
+$stmt->bind_param("s", $username);
+
+$stmt->execute();
+
+$result = $stmt->get_result();
+
+if ($result->num_rows > 0) {
+    $user = $result->fetch_assoc();
+    if (!password_verify($current_password, $user['password'])) {
+        die("-6");
+    }
+} else {
+    die("-7");
+}
+
+$stmt = $conn->prepare("SELECT * FROM users WHERE username = ?");
+$stmt->bind_param("s", $new_username);
+
+$stmt->execute();
+
+$result = $stmt->get_result();
+
+if ($result->num_rows > 0) {
+    die("-8");
+}
+
+$stmt = $conn->prepare("UPDATE users SET username = ? WHERE username = ?");
+$stmt->bind_param("ss", $new_username, $username);
+
+$stmt->execute();
+$stmt->close();
+$conn->close();
+
+echo '1';
+
+?>

database/backported/1.3-beta2/loginAccount.php

@@ -0,0 +1,47 @@
+<?php
+$conn = newConnection();
+
+$request_username = $_POST['username'];
+$request_password = $_POST['password'];
+
+$stmt = $conn->prepare("SELECT * FROM users WHERE username = ?");
+$stmt->bind_param("s", $request_username);
+
+$stmt->execute();
+
+$result = $stmt->get_result();
+
+if ($result->num_rows > 0) {
+    while($row = $result->fetch_assoc()) {
+        if (password_verify($request_password, $row["password"])) {
+            $login_ip = getIPAddress();
+            $login_time = time();
+            $uid = $row['id'];
+            $username = $row['username'];
+            $highscore = $row['legacy_high_score'];
+            $token = $row['token'];
+            $savedata = json_decode($row['save_data'], true);
+            $icon = $savedata['bird']['icon'] ?? 1;
+            $overlay = $savedata['bird']['overlay'] ?? 0;
+
+            $stmt = $conn->prepare("UPDATE users SET latest_ip = ? WHERE id = ?");
+            $stmt->bind_param("si", $login_ip, $uid);
+            $stmt->execute();
+
+            echo "$token:$uid:$highscore:$icon:$overlay";
+        } else {
+            $stmt->close();
+            $conn->close();
+            exit("-2");
+        }
+    }
+} else {
+    $stmt->close();
+    $conn->close();
+    exit("-2");
+}
+
+$stmt->close();
+$conn->close();
+
+?>