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package at.hannibal2.skyhanni.repo
import com.google.gson.Gson
import com.google.gson.JsonObject
import java.io.*
import java.nio.charset.StandardCharsets
import java.nio.file.Files
import java.util.zip.ZipInputStream
object RepoUtils {
fun recursiveDelete(file: File) {
if (file.isDirectory && !Files.isSymbolicLink(file.toPath())) {
for (child in file.listFiles()) {
recursiveDelete(child)
}
}
file.delete()
}
/**
* Modified from https://www.journaldev.com/960/java-unzip-file-example
*/
fun unzipIgnoreFirstFolder(zipFilePath: String, destDir: String) {
val dir = File(destDir)
// create output directory if it doesn't exist
if (!dir.exists()) dir.mkdirs()
val fis: FileInputStream
//buffer for read and write data to file
val buffer = ByteArray(1024)
try {
fis = FileInputStream(zipFilePath)
val zis = ZipInputStream(fis)
var ze = zis.nextEntry
while (ze != null) {
if (!ze.isDirectory) {
var fileName = ze.name
fileName = fileName.substring(fileName.split("/").toTypedArray()[0].length + 1)
val newFile = File(destDir + File.separator + fileName)
//create directories for sub directories in zip
File(newFile.parent).mkdirs()
if (!isInTree(dir, newFile)) {
throw RuntimeException(
"SkyHanni detected an invalid zip file. This is a potential security risk, please report this on the SkyHanni discord."
)
}
val fos = FileOutputStream(newFile)
var len: Int
while (zis.read(buffer).also { len = it } > 0) {
fos.write(buffer, 0, len)
}
fos.close()
}
//close this ZipEntry
zis.closeEntry()
ze = zis.nextEntry
}
//close last ZipEntry
zis.closeEntry()
zis.close()
fis.close()
} catch (e: IOException) {
e.printStackTrace()
}
}
@Throws(IOException::class)
private fun isInTree(rootDirectory: File, file: File): Boolean {
var rootDirectory = rootDirectory
var file: File? = file
file = file!!.canonicalFile
rootDirectory = rootDirectory.canonicalFile
while (file != null) {
if (file == rootDirectory) return true
file = file.parentFile
}
return false
}
fun getConstant(repoLocation: File, constant: String, gson: Gson): JsonObject? {
return getConstant(repoLocation, constant, gson, JsonObject::class.java)
}
private fun <T> getConstant(repo: File, constant: String, gson: Gson, clazz: Class<T>?): T? {
if (repo.exists()) {
val jsonFile = File(repo, "constants/$constant.json")
try {
BufferedReader(
InputStreamReader(
FileInputStream(jsonFile),
StandardCharsets.UTF_8
)
).use { reader ->
return gson.fromJson(reader, clazz)
}
} catch (e: Exception) {
return null
}
}
return null
}
}
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