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package at.hannibal2.skyhanni.data.repo
import com.google.gson.Gson
import java.io.BufferedReader
import java.io.File
import java.io.FileInputStream
import java.io.FileOutputStream
import java.io.IOException
import java.io.InputStreamReader
import java.lang.reflect.Type
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()
}
}
@Suppress("NAME_SHADOWING")
@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 <T> getConstant(repoLocation: File, constant: String, gson: Gson, clazz: Class<T>?, type: Type? = null): T {
val name = "constants/$constant.json"
val jsonFile = File(repoLocation, name)
if (!jsonFile.isFile) {
throw RepoError("Repo file '$name' not found.")
}
BufferedReader(InputStreamReader(FileInputStream(jsonFile), StandardCharsets.UTF_8)).use { reader ->
if (type == null) {
return gson.fromJson(reader, clazz)
} else {
return gson.fromJson(reader, type)
}
}
}
}
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