From 9d2dfdac95590ac59670815c3a2af97b8ad8920f Mon Sep 17 00:00:00 2001
From: Jing Li <lym125@gmail.com>
Date: Sun, 9 Oct 2022 10:50:41 +0800
Subject: [PATCH] =?UTF-8?q?LinkOS=20=E6=9C=8D=E5=8A=A1=E6=8E=A5=E5=85=A5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .env.example                         |   3 +
 app/Providers/AppServiceProvider.php |  10 ++-
 app/Services/LinkosService.php       | 110 +++++++++++++++++++++++++++
 config/services.php                  |   5 ++
 4 files changed, 126 insertions(+), 2 deletions(-)
 create mode 100644 app/Services/LinkosService.php

diff --git a/.env.example b/.env.example
index 00b6110..e057235 100644
--- a/.env.example
+++ b/.env.example
@@ -51,6 +51,9 @@ PUSHER_PORT=443
 PUSHER_SCHEME=https
 PUSHER_APP_CLUSTER=mt1
 
+LINKOS_API_KEY=
+LINKOS_API_SECRET=
+
 VITE_PUSHER_APP_KEY="${PUSHER_APP_KEY}"
 VITE_PUSHER_HOST="${PUSHER_HOST}"
 VITE_PUSHER_PORT="${PUSHER_PORT}"
diff --git a/app/Providers/AppServiceProvider.php b/app/Providers/AppServiceProvider.php
index 2bca3df..5fca5bc 100644
--- a/app/Providers/AppServiceProvider.php
+++ b/app/Providers/AppServiceProvider.php
@@ -2,8 +2,9 @@
 
 namespace App\Providers;
 
-use Illuminate\Support\ServiceProvider;
+use App\Services\LinkosService;
 use Illuminate\Support\Facades\Schema;
+use Illuminate\Support\ServiceProvider;
 
 class AppServiceProvider extends ServiceProvider
 {
@@ -14,7 +15,12 @@ class AppServiceProvider extends ServiceProvider
      */
     public function register()
     {
-        //
+        // 注册 LinkOS 服务
+        $this->app->singleton(LinkosService::class, function ($app) {
+            $config = $app['config']->get('services.linkos', []);
+
+            return new LinkosService($config['key'] ?? '', $config['secret'] ?? '');
+        });
     }
 
     /**
diff --git a/app/Services/LinkosService.php b/app/Services/LinkosService.php
new file mode 100644
index 0000000..870e3c6
--- /dev/null
+++ b/app/Services/LinkosService.php
@@ -0,0 +1,110 @@
+<?php
+
+namespace App\Services;
+
+use Illuminate\Support\Facades\Http;
+
+class LinkosService
+{
+    const BASE_URL = 'http://service.easylinkin.com/api';
+
+    /**
+     * @param  string  $apiKey
+     * @param  string  $apiSecret
+     */
+    public function __construct(
+        protected readonly string $apiKey,
+        protected readonly string $apiSecret,
+    ) {
+    }
+
+    /**
+     * 发起 GET 请求
+     *
+     * @param  string  $url
+     * @param  array  $query
+     * @return array
+     */
+    public function get(string $url, array $query = []): array
+    {
+        return $this->request('GET', $url, [
+            'query' => $query,
+        ]);
+    }
+
+    /**
+     * 发起 POST 请求
+     *
+     * @param  string  $url
+     * @param  array  $data
+     * @return array
+     */
+    public function post(string $url, array $data = []): array
+    {
+        return $this->request('POST', $url, [
+            'json' => $data,
+            // 'form_params' => $data,
+        ]);
+    }
+
+    /**
+     * 发起 HTTP 请求
+     *
+     * @param  string  $method
+     * @param  string  $url
+     * @param  array  $options
+     * @return array
+     */
+    protected function request(string $method, string $url, array $options = []): array
+    {
+        // 随机字符串
+        $nonce = $this->nonce();
+        // 毫秒时间戳
+        $timestamp = now()->getTimestampMs();
+
+        $options['headers'] = array_merge([
+            'Content-Type' => 'application/json',
+            'api-key' => $this->apiKey,
+            'Nonce' => $nonce,
+            'Timestamp' => $timestamp,
+            'Signature' => $this->sign($nonce, $timestamp),
+        ], $options['headers'] ?? []);
+
+        $response = Http::baseUrl(static::BASE_URL)->send($method, $url, $options);
+
+        // HTTP request returned status code 500: {"msg":"系统异常,接口调用失败","code":"default","success":false}
+        $response->throw();
+
+        return $response->json();
+    }
+
+    /**
+     * 生成签名
+     *
+     * @param  string  $nonce
+     * @param  int  $timestamp
+     * @return string
+     */
+    public function sign(string $nonce, int $timestamp): string
+    {
+        return sha1($nonce.$timestamp.$this->apiSecret);
+    }
+
+    /**
+     * @param  int  $length
+     * @param  string  $charset
+     * @return string
+     */
+    protected function nonce(int $length = 8, string $charset = '0123456789'): string
+    {
+        $max = strlen($charset) - 1;
+
+        $nonce = '';
+
+        for ($i = 0; $i < $length; $i++) {
+            $nonce .= $charset[mt_rand(0, $max)];
+        }
+
+        return $nonce;
+    }
+}
diff --git a/config/services.php b/config/services.php
index 0ace530..40b812a 100644
--- a/config/services.php
+++ b/config/services.php
@@ -31,4 +31,9 @@ return [
         'region' => env('AWS_DEFAULT_REGION', 'us-east-1'),
     ],
 
+    'linkos' => [
+        'key' => env('LINKOS_API_KEY'),
+        'secret' => env('LINKOS_API_SECRET'),
+    ],
+
 ];