fixed decryption

This commit is contained in:
LagradOst 2023-08-19 17:03:27 +02:00
parent e20e3dcfd3
commit b3abf1e45f
2 changed files with 12 additions and 14 deletions

View file

@ -88,21 +88,17 @@ object M3u8Helper2 {
}
}
private val defaultIvGen = sequence {
var initial = 1
while (true) {
yield(toBytes16Big(initial))
++initial
private fun defaultIv(index: Int) : ByteArray {
return toBytes16Big(index+1)
}
}.iterator()
fun getDecrypter(
fun getDecrypted(
secretKey: ByteArray,
data: ByteArray,
iv: ByteArray = "".toByteArray()
iv: ByteArray = byteArrayOf(),
index : Int,
): ByteArray {
val ivKey = if (iv.isEmpty()) defaultIvGen.next() else iv
val ivKey = if (iv.isEmpty()) defaultIv(index) else iv
val c = Cipher.getInstance("AES/CBC/PKCS5Padding")
val skSpec = SecretKeySpec(secretKey, "AES")
val ivSpec = IvParameterSpec(ivKey)
@ -234,7 +230,7 @@ object M3u8Helper2 {
if (tsData.isEmpty()) throw ErrorLoadingException("no data")
return if (isEncrypted) {
getDecrypter(encryptionData, tsData, encryptionIv)
getDecrypted(encryptionData, tsData, encryptionIv, index)
} else {
tsData
}
@ -272,13 +268,13 @@ object M3u8Helper2 {
val match =
ENCRYPTION_URL_IV_REGEX.find(m3u8Response)!!.groupValues
var encryptionUri = match[1]
var encryptionUri = match[2]
if (isNotCompleteUrl(encryptionUri)) {
encryptionUri = "${getParentLink(secondSelection.streamUrl)}/$encryptionUri"
}
encryptionIv = match[2].toByteArray()
encryptionIv = match[3].toByteArray()
val encryptionKeyResponse = app.get(encryptionUri, headers = headers, verify = false)
encryptionData = encryptionKeyResponse.body.bytes()
}

View file

@ -803,6 +803,8 @@ object VideoDownloadManager {
bytesDownloaded = 0
hlsWrittenProgress = 0
hlsProgress = 0
if (id != null)
downloadDeleteEvent(id)
//internalType = DownloadType.IsStopped
notify()