From 3993c02c65091f2f2149b917ff66ce48c7fc19a5 Mon Sep 17 00:00:00 2001
From: Rekryt <rekrytkw@gmail.com>
Date: Fri, 20 Dec 2024 12:49:14 +0300
Subject: [PATCH] feat: add net PAC format

---
 README.en.md                         | 27 +++++-----
 README.md                            | 27 +++++-----
 src/App/Controller/PacController.php | 74 ++++++++++++++++++++++++++++
 3 files changed, 102 insertions(+), 26 deletions(-)
 create mode 100644 src/App/Controller/PacController.php

diff --git a/README.en.md b/README.en.md
index 4a4a60c..8746b74 100644
--- a/README.en.md
+++ b/README.en.md
@@ -18,19 +18,20 @@ Demo URL: [https://iplist.opencck.org](https://iplist.opencck.org)
 - **whois, ipcalc (Linux utilities)**
 
 # Formats of Output
-| format   | description           |
-|----------|-----------------------|
-| json     | JSON format           |
-| text     | Newline-separated     |
-| comma    | Comma-separated       |
-| mikrotik | MikroTik Script       |
-| switchy  | SwitchyOmega RuleList |
-| nfset    | Dnsmasq nfset         |
-| ipset    | Dnsmasq ipset         |
-| clashx   | ClashX                |
-| kvas     | Keenetic KVAS         |
-| bat      | Keenetic Routes .bat  |
-| amnezia  | Amnezia filter list   |
+| format   | description                   |
+|----------|-------------------------------|
+| json     | JSON format                   |
+| text     | Newline-separated             |
+| comma    | Comma-separated               |
+| mikrotik | MikroTik Script               |
+| switchy  | SwitchyOmega RuleList         |
+| nfset    | Dnsmasq nfset                 |
+| ipset    | Dnsmasq ipset                 |
+| clashx   | ClashX                        |
+| kvas     | Keenetic KVAS                 |
+| bat      | Keenetic Routes .bat          |
+| amnezia  | Amnezia filter list           |
+| pac      | Proxy Auto-Configuration file |
 
 ## Configuration
 
diff --git a/README.md b/README.md
index f622532..bc6f25e 100644
--- a/README.md
+++ b/README.md
@@ -22,19 +22,20 @@ Demo URL: [https://iplist.opencck.org](https://iplist.opencck.org)
 - whois, ipcalc (linux)
 
 # Форматы выгрузки
-| формат   | описание                 |
-|----------|--------------------------|
-| json     | JSON формат              |
-| text     | Разделение новой строкой |
-| comma    | Разделение запятыми      |
-| mikrotik | MikroTik Script          |
-| switchy  | SwitchyOmega RuleList    |
-| nfset    | Dnsmasq nfset            |
-| ipset    | Dnsmasq ipset            |
-| clashx   | ClashX                   |
-| kvas     | Keenetic KVAS            |
-| bat      | Keenetic Routes .bat     |
-| amnezia  | Amnezia filter list      |
+| формат   | описание                      |
+|----------|-------------------------------|
+| json     | JSON формат                   |
+| text     | Разделение новой строкой      |
+| comma    | Разделение запятыми           |
+| mikrotik | MikroTik Script               |
+| switchy  | SwitchyOmega RuleList         |
+| nfset    | Dnsmasq nfset                 |
+| ipset    | Dnsmasq ipset                 |
+| clashx   | ClashX                        |
+| kvas     | Keenetic KVAS                 |
+| bat      | Keenetic Routes .bat          |
+| amnezia  | Amnezia filter list           |
+| pac      | Proxy Auto-Configuration file |
 
 ## Настройки
 Конфигурационные файлы хранятся в `config/<группа>/<портал>.json`. Каждый JSON файл представляет собой конфигурацию для конкретного портала, задавая домены для мониторинга и источники начальных данных по IP и CIDR.
diff --git a/src/App/Controller/PacController.php b/src/App/Controller/PacController.php
new file mode 100644
index 0000000..061c4fe
--- /dev/null
+++ b/src/App/Controller/PacController.php
@@ -0,0 +1,74 @@
+<?php
+
+namespace OpenCCK\App\Controller;
+
+use OpenCCK\Domain\Factory\SiteFactory;
+use OpenCCK\Domain\Helper\IP4Helper;
+
+class PacController extends AbstractIPListController {
+    /**
+     * @return string
+     */
+    public function getBody(): string {
+        $this->setHeaders(['content-type' => 'text/javascript']);
+
+        $sites = SiteFactory::normalizeArray($this->request->getQueryParameters()['site'] ?? []);
+        $data = $this->request->getQueryParameter('data') ?? '';
+        $template = $this->request->getQueryParameter('template') ?? 'PROXY 127.0.0.1:2080; DIRECT';
+        if (!in_array($data, ['domains', 'cidr4'])) {
+            return "# Error: The 'data' GET parameter is must be 'domains' or 'cidr4'";
+        }
+
+        $items = [];
+        if (count($sites)) {
+            foreach ($sites as $site) {
+                $items = array_merge($items, $this->getSites()[$site]->$data);
+            }
+        } else {
+            foreach ($this->getSites() as $siteEntity) {
+                $items = array_merge($items, $siteEntity->$data);
+            }
+        }
+
+        $response = ['const items = ['];
+        $response[] = implode(
+            ",\n",
+            $data == 'cidr4'
+                ? array_map(function (string $item) {
+                    $parts = explode('/', $item);
+                    $mask = IP4Helper::formatShortIpMask($parts[1] ?? '');
+                    return '["' . $parts[0] . '","' . $mask . '"]';
+                }, SiteFactory::normalizeArray($items, true))
+                : array_map(fn(string $item) => '"' . $item . '"', SiteFactory::normalizeArray($items))
+        );
+        $response[] = '];';
+
+        if ($data == 'cidr4') {
+            $response = array_merge($response, [
+                'function FindProxyForURL(url, host) {',
+                '    for (cidr of items) {',
+                '        if (isInNet(host, cidr[0], cidr[1])) {',
+                '            return "' . $template . '";',
+                '        }',
+                '    }',
+                '',
+                '    return "DIRECT";',
+                '}',
+            ]);
+        } else {
+            $response = array_merge($response, [
+                'function FindProxyForURL(url, host) {',
+                '    for (domain of items) {',
+                '        if (host === domain || shExpMatch(host, "*." + domain)) {',
+                '            return "' . $template . '";',
+                '        }',
+                '    }',
+                '',
+                '    return "DIRECT";',
+                '}',
+            ]);
+        }
+
+        return implode("\n", $response);
+    }
+}