new: add ipwho.is

dependencies.properties

@@ -1 +1 @@
-core.version=0.16.1
+core.version=0.16.4

lib/features/proxy/data/proxy_repository.dart

@@ -127,6 +127,7 @@ class ProxyRepositoryImpl
   final Map<String, IpInfo Function(Map<String, dynamic> response)>
       _ipInfoSources = {
     // "https://geolocation-db.com/json/": IpInfo.fromGeolocationDbComJson, //bug response is not json
+    "https://ipwho.is/": IpInfo.fromIpwhoIsJson,
     "https://api.ip.sb/geoip/": IpInfo.fromIpSbJson,
     "https://ipapi.co/json/": IpInfo.fromIpApiCoJson,
     "https://ipinfo.io/json/": IpInfo.fromIpInfoIoJson,

lib/features/proxy/model/ip_info_entity.dart

@@ -92,6 +92,30 @@ class IpInfo with IpInfoMappable {
     };
   }
 
+  static IpInfo fromIpwhoIsJson(Map<String, dynamic> json) {
+    return switch (json) {
+      {
+        "ip": final String ip,
+        "country_code": final String countryCode,
+        // "region": final String region,
+        // "city": final String city,
+        // "timezone": final String timezone,
+        // "asn": final int asn,
+        "connection": final Map<String, dynamic> connection,
+      } =>
+        IpInfo(
+          ip: ip,
+          countryCode: countryCode,
+          // region: region,
+          // city: city,
+          // timezone: timezone,
+          asn: '$connection["asn"]',
+          org: '$connection["org"]',
+        ),
+      _ => throw const FormatException("invalid json"),
+    };
+  }
+
   static IpInfo fromGeolocationDbComJson(Map<String, dynamic> json) {
     return switch (json) {
       {