81 lines
2.8 KiB
Kotlin
81 lines
2.8 KiB
Kotlin
/*
|
|
* SPDX-License-Identifier: MPL-2.0
|
|
* Copyright © 2020 Skyline Team and Contributors (https://github.com/skyline-emu/)
|
|
*/
|
|
|
|
package emu.skyline
|
|
|
|
import android.content.Context
|
|
import android.net.Uri
|
|
import android.util.Log
|
|
import androidx.documentfile.provider.DocumentFile
|
|
import java.io.File
|
|
|
|
object KeyReader {
|
|
private val Tag = KeyReader::class.java.simpleName
|
|
|
|
enum class KeyType(val keyName : String, val fileName : String) {
|
|
Title("title_keys", "title.keys"), Prod("prod_keys", "prod.keys");
|
|
|
|
companion object {
|
|
fun parse(keyName : String) = values().first { it.keyName == keyName }
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Reads keys file, trims and writes to internal app data storage, it makes sure file is properly formatted
|
|
*/
|
|
fun import(context : Context, uri : Uri, keyType : KeyType) : Boolean {
|
|
Log.i(Tag, "Parsing ${keyType.name}")
|
|
|
|
if (!DocumentFile.isDocumentUri(context, uri))
|
|
return false
|
|
|
|
val fileName = DocumentFile.fromSingleUri(context, uri)!!.name
|
|
if (fileName?.substringAfterLast('.')?.startsWith("keys")?.not() == true)
|
|
return false
|
|
|
|
val tmpOutputFile = File("${context.filesDir.canonicalFile}/${keyType.fileName}.tmp")
|
|
|
|
val inputStream = context.contentResolver.openInputStream(uri)
|
|
tmpOutputFile.bufferedWriter().use { writer ->
|
|
val valid = inputStream!!.bufferedReader().useLines {
|
|
for (line in it) {
|
|
val pair = line.split("=")
|
|
if (pair.size != 2)
|
|
return@useLines false
|
|
|
|
val key = pair[0].trim()
|
|
val value = pair[1].trim()
|
|
when (keyType) {
|
|
KeyType.Title -> {
|
|
if (key.length != 32 && !isHexString(key))
|
|
return@useLines false
|
|
if (value.length != 32 && !isHexString(value))
|
|
return@useLines false
|
|
}
|
|
KeyType.Prod -> {
|
|
if (!key.contains("_"))
|
|
return@useLines false
|
|
if (!isHexString(value))
|
|
return@useLines false
|
|
}
|
|
}
|
|
|
|
writer.append("$key=$value\n")
|
|
}
|
|
true
|
|
}
|
|
|
|
if (valid) tmpOutputFile.renameTo(File("${tmpOutputFile.parent}/${keyType.fileName}"))
|
|
return valid
|
|
}
|
|
}
|
|
|
|
private fun isHexString(str : String) : Boolean {
|
|
for (c in str)
|
|
if (!(c in '0'..'9' || c in 'a'..'f' || c in 'A'..'F')) return false
|
|
return true
|
|
}
|
|
}
|