feat: Implement multiple custom saved cards file parsers(#370)

GameTec-live · Oct 30, 2023 · 08a8d67 · 08a8d67
1 parent 751f4d2
commit 08a8d67
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Showing 3 changed files with 167 additions and 3 deletions.
diff --git a/chameleonultragui/lib/gui/page/saved_cards.dart b/chameleonultragui/lib/gui/page/saved_cards.dart
@@ -17,6 +17,7 @@ import 'package:flutter_staggered_grid_view/flutter_staggered_grid_view.dart';
 import 'package:provider/provider.dart';
 import 'package:chameleonultragui/gui/menu/card_edit.dart';
 import 'package:chameleonultragui/gui/menu/dictionary_view.dart';
+import 'package:uuid/uuid.dart';
 
 // Localizations
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
@@ -31,6 +32,142 @@ class SavedCardsPage extends StatefulWidget {
 class SavedCardsPageState extends State<SavedCardsPage> {
   MifareClassicType selectedType = MifareClassicType.m1k;
 
+  CardSave pm3JsonToCardSave(String json) {
+    Map<String, dynamic> data = jsonDecode(json);
+
+    final String id = const Uuid().v4();
+    final String uid = data['Card']['UID'] as String;
+    String sakString = data['Card']['SAK'] as String;
+    final int sak = hexToBytes(sakString)[0];
+    String atqaString = data['Card']['ATQA'] as String;
+    final List<int> atqa = [
+      int.parse(atqaString.substring(2), radix: 16),
+      int.parse(atqaString.substring(0, 2), radix: 16)
+    ];
+    final List<int> ats = [];
+    final String name = uid;
+    const Color color = Colors.deepOrange;
+    final TagType tag;
+    List<Uint8List> tagData = [];
+
+    List<String> blocks = [];
+    Map<String, dynamic> blockData = data['blocks'] as Map<String, dynamic>;
+    for (int i = 0; blockData.containsKey(i.toString()); i++) {
+      blocks.add(blockData[i.toString()] as String);
+    }
+
+    //Check if a block has more than 16 Bytes, Ultralight, return as unknown
+    if (blocks[0].length > 32) {
+      tag = TagType.unknown;
+    } else {
+      tag = mfClassicGetChameleonTagType(mfClassicGetCardTypeByBlockCount(blocks.length));
+    }
+
+    for (var block in blocks) {
+      tagData.add(hexToBytes(block));
+    }
+
+    return CardSave(
+      id: id,
+      uid: uid,
+      sak: sak,
+      name: name,
+      tag: tag,
+      data: tagData,
+      color: color,
+      ats: Uint8List.fromList(ats),
+      atqa: Uint8List.fromList(atqa));
+  }
+
+  CardSave flipperNfcToCardSave(String data) {
+    final String id = const Uuid().v4();
+    final String uid = RegExp(r'UID:\s+([\dA-Fa-f ]+)').firstMatch(data)!.group(1)!;
+    final int sak = hexToBytes(RegExp(r'SAK:\s+([\dA-Fa-f ]+)').firstMatch(data)!.group(1)!)[0];
+    String atqaString = RegExp(r'ATQA:\s+([\dA-Fa-f ]+)').firstMatch(data)!.group(1)!;
+    final List<int> atqa = [
+      int.parse(atqaString.substring(0, 2), radix: 16),
+      int.parse(atqaString.substring(2), radix: 16)
+    ];
+    final List<int> ats = [];
+    final String name = uid;
+    const Color color = Colors.deepOrange;
+    final TagType tag;
+    List<Uint8List> tagData = [];
+    List<String> blocks = [];
+    for (var block in data.split("\n")) {
+      if (block.startsWith("Block")) {
+        blocks.add(block.split(":")[1].trim().replaceAll('?', '0'));
+      }
+    }
+
+    //Check if a block has more than 16 Bytes, Ultralight, return as unknown
+    if (blocks[0].replaceAll(' ', '').length > 32) {
+      tag = TagType.unknown;
+    } else {
+      tag = mfClassicGetChameleonTagType(mfClassicGetCardTypeByBlockCount(blocks.length));
+    }
+
+    for (var block in blocks) {
+      tagData.add(hexToBytesSpace(block));
+    }
+
+    return CardSave(
+      id: id,
+      uid: uid,
+      sak: sak,
+      name: name,
+      tag: tag,
+      data: tagData,
+      color: color,
+      ats: Uint8List.fromList(ats),
+      atqa: Uint8List.fromList(atqa));
+  }
+
+  CardSave mfctToCardSave(String data) {
+    final String id = const Uuid().v4();
+    final String uid = data.split("\n")[1].substring(0, 8);
+    final int sak = hexToBytes(data.split("\n")[1].substring(10,12))[0];
+    String atqaString = data.split("\n")[1].substring(12, 16);
+    final List<int> atqa = [
+      int.parse(atqaString.substring(2), radix: 16),
+      int.parse(atqaString.substring(0, 2), radix: 16)
+    ];
+    final List<int> ats = [];
+    final String name = uid;
+    const Color color = Colors.deepOrange;
+    final TagType tag;
+    List<Uint8List> tagData = [];
+    List<String> blocks = [];
+    for (var block in data.split("\n")) {
+      if (!block.startsWith("+Sector")) {
+        blocks.add(block.trim());
+      }
+    }
+
+    //Check if a block has more than 16 Bytes, Ultralight, return as unknown
+    if (blocks[0].replaceAll(' ', '').length > 32) {
+      tag = TagType.unknown;
+    } else {
+      tag = mfClassicGetChameleonTagType(mfClassicGetCardTypeByBlockCount(blocks.length));
+    }
+
+    for (var block in blocks) {
+      tagData.add(hexToBytesSpace(block));
+    }
+
+    return CardSave(
+      id: id,
+      uid: uid,
+      sak: sak,
+      name: name,
+      tag: tag,
+      data: tagData,
+      color: color,
+      ats: Uint8List.fromList(ats),
+      atqa: Uint8List.fromList(atqa));
+  }
+
+
   @override
   Widget build(BuildContext context) {
     var appState = context.watch<ChameleonGUIState>();
@@ -73,7 +210,21 @@ class SavedCardsPageState extends State<SavedCardsPage> {
                           var string = const Utf8Decoder().convert(contents);
                           var tags =
                               appState.sharedPreferencesProvider.getCards();
-                          var tag = CardSave.fromJson(string);
+                          CardSave tag;
+                          if (string.contains("\"Created\": \"proxmark3\",")) {
+                            // PM3 JSON
+                            tag = pm3JsonToCardSave(string);
+                          } else if (string.contains("Filetype: Flipper NFC device")) {
+                            // Flipper NFC
+                            tag = flipperNfcToCardSave(string);
+                          } else if (string.contains("+Sector: 0")) {
+                            // Mifare Classic Tool
+                            tag = mfctToCardSave(string);
+
+                          } else {
+                            tag = CardSave.fromJson(string);
+                          }
+
                           tags.add(tag);
                           appState.sharedPreferencesProvider.setCards(tags);
                           appState.changesMade();

diff --git a/chameleonultragui/lib/helpers/mifare_classic/general.dart b/chameleonultragui/lib/helpers/mifare_classic/general.dart
@@ -141,6 +141,20 @@ int mfClassicGetBlockCount(MifareClassicType type, {bool isEV1 = false}) {
   }
 }
 
+MifareClassicType mfClassicGetCardTypeByBlockCount(int blockCount) {
+  if (blockCount == 64 || blockCount == 72) {
+    return MifareClassicType.m1k;
+  } else if (blockCount == 128) {
+    return MifareClassicType.m2k;
+  } else if (blockCount == 256) {
+    return MifareClassicType.m4k;
+  } else if (blockCount == 20) {
+    return MifareClassicType.mini;
+  } else {
+    return MifareClassicType.none;
+  }
+}
+
 int mfClassicGetSectorTrailerBlockBySector(int sector) {
   if (sector < 32) {
     return sector * 4 + 3;
@@ -216,4 +230,4 @@ List<Uint8List> mfClassicGetKeysFromDump(List<Uint8List> dump) {
   }
 
   return keys;
-}
+}
diff --git a/chameleonultragui/lib/sharedprefsprovider.dart b/chameleonultragui/lib/sharedprefsprovider.dart
@@ -8,7 +8,6 @@ import 'package:uuid/uuid.dart';
 
 // Localizations
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
-
 class Dictionary {
   String id;
   String name;