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added download database

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oxidiert
2025-08-11 13:46:12 +02:00
parent 7571b39f7a
commit 385e7cd72e
2 changed files with 43 additions and 3 deletions
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24
app/src/main/java/com/dano/test1/DatabaseDownloader.kt
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@ -13,7 +13,7 @@ import java.io.FileOutputStream
object DatabaseDownloader { object DatabaseDownloader {
private const val DB_NAME = "questionnaire_database" private const val DB_NAME = "questionnaire_database"
private const val SERVER_DOWNLOAD_URL = "http://49.13.157.44/exported_encrypted_database.db" private const val SERVER_DOWNLOAD_URL = "http://49.13.157.44/uploads/exported_encrypted_database.db"
private val client = OkHttpClient() private val client = OkHttpClient()
@ -58,7 +58,10 @@ object DatabaseDownloader {
} }
decryptedFile.copyTo(dbFile, overwrite = true) decryptedFile.copyTo(dbFile, overwrite = true)
Log.d("DOWNLOAD", "Neue Datenbank erfolgreich eingesetzt.") Log.d("DOWNLOAD", "Neue Datenbank erfolgreich eingesetzt")
// Datenbankinhalt nach Download ausgeben (Hex-String)
logFileContentAsHex(dbFile, "DOWNLOAD")
} catch (e: Exception) { } catch (e: Exception) {
Log.e("DOWNLOAD", "Fehler beim Download oder Ersetzen der DB", e) Log.e("DOWNLOAD", "Fehler beim Download oder Ersetzen der DB", e)
@ -71,4 +74,21 @@ object DatabaseDownloader {
// TODO: hier echte Entschlüsselungslogik einfügen // TODO: hier echte Entschlüsselungslogik einfügen
encryptedFile.copyTo(outputFile, overwrite = true) encryptedFile.copyTo(outputFile, overwrite = true)
} }
private fun logFileContentAsHex(file: File, tag: String) {
try {
val bytes = file.readBytes()
// Zum Loggen den Hex-String in Blöcke teilen, max 4000 Zeichen pro Log (Android Logcat Limit)
val hexString = bytes.joinToString(separator = "") { "%02X".format(it) }
val chunkSize = 4000
var start = 0
while (start < hexString.length) {
val end = (start + chunkSize).coerceAtMost(hexString.length)
Log.d(tag, "DB HEX Content: ${hexString.substring(start, end)}")
start = end
}
} catch (e: Exception) {
Log.e(tag, "Fehler beim Lesen der Datei zum Loggen", e)
}
}
} }

22
app/src/main/java/com/dano/test1/DatabaseUploader.kt
View File

@ -33,6 +33,9 @@ object DatabaseUploader {
return@launch return@launch
} }
// Datenbankinhalt vor Upload ausgeben (Hex-String)
logFileContentAsHex(dbFile, "UPLOAD")
val exportFile = File(context.cacheDir, ENCRYPTED_FILE_NAME) val exportFile = File(context.cacheDir, ENCRYPTED_FILE_NAME)
dbFile.copyTo(exportFile, overwrite = true) dbFile.copyTo(exportFile, overwrite = true)
@ -85,4 +88,21 @@ object DatabaseUploader {
} }
}) })
} }
}
private fun logFileContentAsHex(file: File, tag: String) {
try {
val bytes = file.readBytes()
// Zum Loggen den Hex-String in Blöcke teilen, max 4000 Zeichen pro Log (Android Logcat Limit)
val hexString = bytes.joinToString(separator = "") { "%02X".format(it) }
val chunkSize = 4000
var start = 0
while (start < hexString.length) {
val end = (start + chunkSize).coerceAtMost(hexString.length)
Log.d(tag, "DB HEX Content: ${hexString.substring(start, end)}")
start = end
}
} catch (e: Exception) {
Log.e(tag, "Fehler beim Lesen der Datei zum Loggen", e)
}
}
}