Refactor profiles

2023-11-26 21:20:58 +03:30
parent e2f5f51176
commit 829d58a1a2
49 changed files with 1206 additions and 1024 deletions
--- a/lib/features/profile/data/profile_parser.dart
+++ b/lib/features/profile/data/profile_parser.dart
@@ -0,0 +1,105 @@
+import 'dart:convert';
+
+import 'package:dartx/dartx.dart';
+import 'package:hiddify/features/profile/model/profile_entity.dart';
+import 'package:hiddify/utils/utils.dart';
+import 'package:uuid/uuid.dart';
+
+/// parse profile subscription url and headers for data
+///
+/// ***name parser hierarchy:***
+/// - `profile-title` header
+/// - `content-disposition` header
+/// - url fragment (example: `https://example.com/config#user`) -> name=`user`
+/// - url filename extension (example: `https://example.com/config.json`) -> name=`config`
+/// - if none of these methods return a non-blank string, fallback to `Remote Profile`
+abstract class ProfileParser {
+  static RemoteProfileEntity parse(
+    String url,
+    Map<String, List<String>> headers,
+  ) {
+    var name = '';
+    if (headers['profile-title'] case [final titleHeader]) {
+      if (titleHeader.startsWith("base64:")) {
+        name =
+            utf8.decode(base64.decode(titleHeader.replaceFirst("base64:", "")));
+      } else {
+        name = titleHeader.trim();
+      }
+    }
+    if (headers['content-disposition'] case [final contentDispositionHeader]
+        when name.isEmpty) {
+      final regExp = RegExp('filename="([^"]*)"');
+      final match = regExp.firstMatch(contentDispositionHeader);
+      if (match != null && match.groupCount >= 1) {
+        name = match.group(1) ?? '';
+      }
+    }
+    if (Uri.parse(url).fragment case final fragment when name.isEmpty) {
+      name = fragment;
+    }
+    if (url.split("/").lastOrNull case final part? when name.isEmpty) {
+      final pattern = RegExp(r"\.(json|yaml|yml|txt)[\s\S]*");
+      name = part.replaceFirst(pattern, "");
+    }
+    if (name.isBlank) name = "Remote Profile";
+
+    ProfileOptions? options;
+    if (headers['profile-update-interval'] case [final updateIntervalStr]) {
+      final updateInterval = Duration(hours: int.parse(updateIntervalStr));
+      options = ProfileOptions(updateInterval: updateInterval);
+    }
+
+    SubscriptionInfo? subInfo;
+    if (headers['subscription-userinfo'] case [final subInfoStr]) {
+      subInfo = parseSubscriptionInfo(subInfoStr);
+    }
+
+    if (subInfo != null) {
+      if (headers['profile-web-page-url'] case [final profileWebPageUrl]
+          when isUrl(profileWebPageUrl)) {
+        subInfo = subInfo.copyWith(webPageUrl: profileWebPageUrl);
+      }
+      if (headers['support-url'] case [final profileSupportUrl]
+          when isUrl(profileSupportUrl)) {
+        subInfo = subInfo.copyWith(supportUrl: profileSupportUrl);
+      }
+    }
+
+    return RemoteProfileEntity(
+      id: const Uuid().v4(),
+      active: false,
+      name: name,
+      url: url,
+      lastUpdate: DateTime.now(),
+      options: options,
+      subInfo: subInfo,
+    );
+  }
+
+  static SubscriptionInfo? parseSubscriptionInfo(String subInfoStr) {
+    final values = subInfoStr.split(';');
+    final map = {
+      for (final v in values)
+        v.split('=').first.trim():
+            num.tryParse(v.split('=').second.trim())?.toInt(),
+    };
+    if (map
+        case {
+          "upload": final upload?,
+          "download": final download?,
+          "total": final total,
+          "expire": final expire
+        }) {
+      return SubscriptionInfo(
+        upload: upload,
+        download: download,
+        total: total ?? 9223372036854775807,
+        expire: DateTime.fromMillisecondsSinceEpoch(
+          (expire ?? 92233720368) * 1000,
+        ),
+      );
+    }
+    return null;
+  }
+}