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This commit is contained in:
Vishnu Mohandas 2020-08-11 05:38:48 +05:30
parent 4b63196e34
commit 2e39f2e90a
2 changed files with 26 additions and 2 deletions
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18
lib/photo_sync_manager.dart
View file

@ -4,6 +4,7 @@ import 'dart:io' as io;
import 'dart:math';
import 'package:logging/logging.dart';
import 'package:photos/core/constants.dart';
import 'package:photos/core/event_bus.dart';
import 'package:photos/db/files_db.dart';
import 'package:photos/events/photo_upload_event.dart';
@ -245,13 +246,25 @@ class PhotoSyncManager {
}
Future<File> _uploadEncryptedFile(File file) async {
final key = Configuration.instance.getKey("hello");
final filePath = (await (await file.getAsset()).originFile).path;
final encryptedFileName = file.generatedID.toString() + ".aes";
final encryptedFilePath = _encryptedFilesDirectory + encryptedFileName;
final fileIV = CryptoUtil.getBase64EncodedSecureRandomString(length: 16);
final key = Configuration.instance.getKey("hello");
await CryptoUtil.encryptFile(filePath, encryptedFilePath, key, fileIV);
final thumbnailData = (await (await file.getAsset())
.thumbDataWithSize(THUMBNAIL_LARGE_SIZE, THUMBNAIL_LARGE_SIZE));
final encryptedThumbnailName =
file.generatedID.toString() + "_thumbnail.aes";
final encryptedThumbnailPath =
_encryptedFilesDirectory + encryptedThumbnailName;
final thumbnailIV =
CryptoUtil.getBase64EncodedSecureRandomString(length: 16);
await CryptoUtil.encryptData(
thumbnailData, encryptedThumbnailPath, key, thumbnailIV);
final metadata = jsonEncode(file.getMetadata());
final metadataIV =
CryptoUtil.getBase64EncodedSecureRandomString(length: 16);
@ -260,6 +273,9 @@ class PhotoSyncManager {
"file": MultipartFile.fromFileSync(encryptedFilePath,
filename: encryptedFileName),
"fileIV": fileIV,
"thumbnail": MultipartFile.fromFileSync(encryptedThumbnailPath,
filename: encryptedThumbnailName),
"thumbnailIV": thumbnailIV,
"metadata": encryptedMetadata,
"metadataIV": metadataIV,
});

10
lib/utils/crypto_util.dart
View file

@ -19,7 +19,6 @@ class CryptoUtil {
return encrypter.decrypt(Encrypted.fromBase64(cipherText));
}
// Encrypts a file and returns the IV that was used
static Future<void> encryptFile(String sourcePath, String destinationPath,
String base64Key, String base64IV) async {
final encrypter = AesCrypt("hello");
@ -28,4 +27,13 @@ class CryptoUtil {
encrypter.setOverwriteMode(AesCryptOwMode.on);
await encrypter.encryptFile(sourcePath, destinationPath);
}
static Future<void> encryptData(Uint8List source, String destinationPath,
String base64Key, String base64IV) async {
final encrypter = AesCrypt("hello");
encrypter.aesSetParams(Key.fromBase64(base64Key).bytes,
IV.fromBase64(base64IV).bytes, AesMode.cbc);
encrypter.setOverwriteMode(AesCryptOwMode.on);
await encrypter.encryptDataToFile(source, destinationPath);
}
}