VancedManager/app/src/main/java/com/vanced/manager/core/downloader/VancedDownloader.kt

224 lines
9.0 KiB
Kotlin

package com.vanced.manager.core.downloader
import android.content.Context
import android.content.SharedPreferences
import android.os.Build
import androidx.preference.PreferenceManager.getDefaultSharedPreferences
import com.downloader.Error
import com.downloader.OnDownloadListener
import com.downloader.PRDownloader
import com.google.firebase.analytics.FirebaseAnalytics
import com.google.firebase.analytics.ktx.logEvent
import com.vanced.manager.R
import com.vanced.manager.core.App
import com.vanced.manager.utils.AppUtils.vancedRootPkg
import com.vanced.manager.utils.DownloadHelper.downloadProgress
import com.vanced.manager.utils.InternetTools
import com.vanced.manager.utils.InternetTools.baseUrl
import com.vanced.manager.utils.InternetTools.getFileNameFromUrl
import com.vanced.manager.utils.LanguageHelper.getDefaultVancedLanguages
import com.vanced.manager.utils.PackageHelper.getPkgVerCode
import com.vanced.manager.utils.PackageHelper.installVanced
import com.vanced.manager.utils.PackageHelper.installVancedRoot
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch
import kotlinx.coroutines.runBlocking
import java.io.File
import java.io.IOException
import java.security.MessageDigest
import java.util.*
object VancedDownloader {
private var sha256Val: String? = null
private lateinit var prefs: SharedPreferences
private lateinit var defPrefs: SharedPreferences
private lateinit var arch: String
private var installUrl: String? = null
private var variant: String? = null
private var theme: String? = null
private var lang: MutableList<String>? = null
private lateinit var themePath: String
private var count: Int = 0
private var succesfulLangCount: Int = 0
private var hashUrl = ""
private var vancedVersionCode = 0
private var vancedVersion: String? = null
private var downloadPath: String? = null
fun downloadVanced(context: Context) {
val app = context.applicationContext as App
defPrefs = getDefaultSharedPreferences(context)
installUrl = defPrefs.getString("install_url", baseUrl)
prefs = context.getSharedPreferences("installPrefs", Context.MODE_PRIVATE)
variant = defPrefs.getString("vanced_variant", "nonroot")
downloadPath = context.getExternalFilesDir("vanced/$variant")?.path
File(downloadPath.toString()).deleteRecursively()
lang = prefs.getString("lang", getDefaultVancedLanguages(app))?.split(", ")?.toMutableList()
theme = prefs.getString("theme", "dark")
vancedVersion = app.vanced.get()?.string("version")
themePath = "$installUrl/apks/v$vancedVersion/$variant/Theme"
hashUrl = "apks/v$vancedVersion/$variant/Theme/hash.json"
//newInstaller = defPrefs.getBoolean("new_installer", false)
arch =
when {
Build.SUPPORTED_ABIS.contains("x86") -> "x86"
Build.SUPPORTED_ABIS.contains("arm64-v8a") -> "arm64_v8a"
else -> "armeabi_v7a"
}
count = 0
vancedVersionCode = app.vanced.get()?.int("versionCode") ?: 0
downloadSplits(context)
}
private fun downloadSplits(
context: Context,
type: String = "theme"
) {
CoroutineScope(Dispatchers.IO).launch {
val url =
when (type) {
"theme" -> "$themePath/$theme.apk"
"arch" -> "$installUrl/apks/v$vancedVersion/$variant/Arch/split_config.$arch.apk"
"stock" -> "$themePath/stock.apk"
"dpi" -> "$themePath/dpi.apk"
"lang" -> "$installUrl/apks/v$vancedVersion/$variant/Language/split_config.${lang?.get(count)}.apk"
else -> throw NotImplementedError("This type of APK is NOT valid. What the hell did you even do?")
}
downloadProgress.get()?.currentDownload = PRDownloader.download(url, downloadPath, getFileNameFromUrl(url))
.build()
.setOnStartOrResumeListener {
downloadProgress.get()?.downloadingFile?.set(context.getString(R.string.downloading_file, getFileNameFromUrl(url)))
}
.setOnProgressListener { progress ->
downloadProgress.get()?.downloadProgress?.set((progress.currentBytes * 100 / progress.totalBytes).toInt())
}
.start(object : OnDownloadListener {
override fun onDownloadComplete() {
when (type) {
"theme" ->
if (variant == "root") {
if (validateTheme(context)) {
if (downloadStockCheck(context))
downloadSplits(context, "arch")
else
startVancedInstall(context)
} else
downloadSplits(context, "theme")
} else
downloadSplits(context, "arch")
"arch" -> if (variant == "root") downloadSplits(context, "stock") else downloadSplits(context, "lang")
"stock" -> downloadSplits(context, "dpi")
"dpi" -> downloadSplits(context, "lang")
"lang" -> {
count++
succesfulLangCount++
if (count < lang?.count()!!)
downloadSplits(context, "lang")
else
startVancedInstall(context)
}
}
}
override fun onError(error: Error?) {
if (type == "lang") {
count++
when {
count < lang?.count()!! -> downloadSplits(context, "lang")
succesfulLangCount == 0 -> {
lang?.add("en")
downloadSplits(context, "lang")
}
else -> startVancedInstall(context)
}
} else {
downloadProgress.get()?.downloadingFile?.set(context.getString(R.string.error_downloading, getFileNameFromUrl(url)))
}
}
})
}
}
fun downloadStockCheck(context: Context): Boolean {
return try {
getPkgVerCode(vancedRootPkg, context.packageManager) != vancedVersionCode
} catch (e: Exception) {
true
}
}
private suspend fun getSha256(obj: String, context: Context) {
sha256Val = InternetTools.getJsonString(hashUrl, obj, context)
}
private fun validateTheme(context: Context): Boolean {
val themeF = File(downloadPath, "${theme}.apk")
runBlocking { getSha256(theme!!, context) }
return checkSHA256(sha256Val!!,themeF)
}
fun startVancedInstall(context: Context, variant: String? = this.variant) {
downloadProgress.get()?.installing?.set(true)
downloadProgress.get()?.reset()
FirebaseAnalytics.getInstance(context).logEvent(FirebaseAnalytics.Event.SELECT_ITEM) {
variant?.let { param("vanced_variant", it) }
theme?.let { param("vanced_theme", it) }
}
if (variant == "root")
installVancedRoot(context)
else
installVanced(context)
}
private fun checkSHA256(sha256: String, updateFile: File?): Boolean {
return try {
val dataBuffer = updateFile!!.readBytes()
// Generate the checksum
val sum = generateChecksum(dataBuffer)
sum.toLowerCase(Locale.ENGLISH) == sha256.toLowerCase(Locale.ENGLISH)
} catch (e: Exception) {
e.printStackTrace()
false
}
}
@Throws(IOException::class)
private fun generateChecksum(data: ByteArray): String {
try {
val digest: MessageDigest = MessageDigest.getInstance("SHA-256")
val hash: ByteArray = digest.digest(data)
return printableHexString(hash)
} catch (e: Exception) {
e.printStackTrace()
}
return ""
}
private fun printableHexString(data: ByteArray): String {
// Create Hex String
val hexString: StringBuilder = StringBuilder()
for (aMessageDigest:Byte in data) {
var h: String = Integer.toHexString(0xFF and aMessageDigest.toInt())
while (h.length < 2)
h = "0$h"
hexString.append(h)
}
return hexString.toString()
}
}