From 3d91654b3017ae57386d4a70c16c0b76476eed9b Mon Sep 17 00:00:00 2001
From: Yannick Decat <17177411+mho22@users.noreply.github.com>
Date: Mon, 6 Jan 2025 10:19:03 +0100
Subject: [PATCH] Discord Notifications - Add limits in embed structures in
 discord notifications messages (#1864)

* Added limits in embed structures in discord notifications messages

* Added limits in embed structures in discord notifications messages

* Added limits in embed structures in discord notifications messages
---
 .../Channels/Discord/DiscordMessage.php       | 13 ++--
 .../Channels/Discord/DiscordMessageTest.php   | 78 +++++++++++++++++++
 2 files changed, 85 insertions(+), 6 deletions(-)
 create mode 100644 tests/Notifications/Channels/Discord/DiscordMessageTest.php

diff --git a/src/Notifications/Channels/Discord/DiscordMessage.php b/src/Notifications/Channels/Discord/DiscordMessage.php
index fda49647..5cd69c53 100644
--- a/src/Notifications/Channels/Discord/DiscordMessage.php
+++ b/src/Notifications/Channels/Discord/DiscordMessage.php
@@ -3,6 +3,7 @@
 namespace Spatie\Backup\Notifications\Channels\Discord;
 
 use Carbon\Carbon;
+use Illuminate\Support\Str;
 
 class DiscordMessage
 {
@@ -103,8 +104,8 @@ public function fields(array $fields, bool $inline = true): self
     {
         foreach ($fields as $label => $value) {
             $this->fields[] = [
-                'name' => $label,
-                'value' => $value,
+                'name' => Str::limit($label, 250),
+                'value' => Str::limit($value, 1000),
                 'inline' => $inline,
             ];
         }
@@ -118,14 +119,14 @@ public function toArray(): array
             'avatar_url' => $this->avatarUrl,
             'embeds' => [
                 [
-                    'title' => $this->title,
+                    'title' => Str::limit($this->title, 250),
                     'url' => $this->url,
                     'type' => 'rich',
-                    'description' => $this->description,
-                    'fields' => $this->fields,
+                    'description' => Str::limit($this->description, 4000),
+                    'fields' => array_slice($this->fields, 0, 25),
                     'color' => hexdec((string) $this->color),
                     'footer' => [
-                        'text' => $this->footer ?? '',
+                        'text' => $this->footer ? Str::limit($this->footer, 2000) : '',
                     ],
                     'timestamp' => $this->timestamp ?? now(),
                 ],
diff --git a/tests/Notifications/Channels/Discord/DiscordMessageTest.php b/tests/Notifications/Channels/Discord/DiscordMessageTest.php
new file mode 100644
index 00000000..52b08544
--- /dev/null
+++ b/tests/Notifications/Channels/Discord/DiscordMessageTest.php
@@ -0,0 +1,78 @@
+<?php
+
+use Spatie\Backup\Notifications\Channels\Discord\DiscordMessage;
+
+beforeEach(function () {
+    $this->message = new DiscordMessage;
+});
+
+it('resizes embed title if character count is greater than 256', function () {
+    $string = fake()->regexify('[A-Za-z0-9]{300}');
+    $count = strlen($string);
+
+    expect($count)->toBeGreaterThan(256);
+
+    $this->message->title($string);
+    $title = $this->message->toArray()['embeds'][0]['title'];
+    $count = strlen($title);
+
+    expect($count)->toBeLessThan(256);
+});
+
+it('resizes embed description if character count is greater than 4096', function () {
+    $string = fake()->regexify('[A-Za-z0-9]{5000}');
+    $count = strlen($string);
+
+    expect($count)->toBeGreaterThan(4096);
+
+    $this->message->title($string);
+    $description = $this->message->toArray()['embeds'][0]['description'];
+    $count = strlen($description);
+
+    expect($count)->toBeLessThan(4096);
+});
+
+it('resizes fields if fields count is greater than 25', function () {
+    $array = array_map(fn() => fake()->word(), range(1, 50));
+    $count = count($array);
+
+    expect($count)->toBeGreaterThan(25);
+
+    $this->message->fields($array);
+    $fields = $this->message->toArray()['embeds'][0]['fields'];
+    $count = count($fields);
+
+    expect($count)->toEqual(25);
+});
+
+it('resizes field name if character count is greater than 256 and value if character count is greater than 1024', function () {
+    $name = fake()->regexify('[A-Za-z0-9]{300}');
+    $value = fake()->regexify('[A-Za-z0-9]{2000}');
+    $array = [$name => $value];
+    $nameCount = strlen($name);
+    $valueCount = strlen($value);
+
+    expect($nameCount)->toBeGreaterThan(256);
+    expect($valueCount)->toBeGreaterThan(1024);
+
+    $this->message->fields($array);
+    $fields = $this->message->toArray()['embeds'][0]['fields'][0];
+    $nameCount = strlen($fields['name']);
+    $valueCount = strlen($fields['value']);
+
+    expect($nameCount)->toBeLessThan(256);
+    expect($valueCount)->toBeLessThan(1024);
+});
+
+it('resizes footer text if character count is greater than 2048', function () {
+    $string = fake()->regexify('[A-Za-z0-9]{3000}');
+    $count = strlen($string);
+
+    expect($count)->toBeGreaterThan(2048);
+
+    $this->message->footer($string);
+    $footer = $this->message->toArray()['embeds'][0]['footer']['text'];
+    $count = strlen($footer);
+
+    expect($count)->toBeLessThan(2048);
+});