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fix: permission error when using installed app

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This commit is contained in:
Ax333l 2023-08-12 14:52:34 +02:00
parent 7aea9473de
commit f6563b265b
2 changed files with 14 additions and 3 deletions
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2
app/src/main/java/app/revanced/manager/patcher/Aligning.kt
View File

@ -30,7 +30,7 @@ object Aligning {
}
file.copyEntriesFromFileAligned(
ZipFile(inputFile),
ZipFile(inputFile, readonly = true),
ZipAligner::getEntryAlignment
)
}

15
app/src/main/java/app/revanced/manager/patcher/alignment/zip/ZipFile.kt
View File

@ -5,16 +5,17 @@ import app.revanced.manager.patcher.alignment.zip.structures.ZipEntry
import java.io.Closeable
import java.io.File
import java.io.IOException
import java.io.RandomAccessFile
import java.nio.ByteBuffer
import java.nio.channels.FileChannel
import java.util.zip.CRC32
import java.util.zip.Deflater
class ZipFile(file: File) : Closeable {
class ZipFile(file: File, private val readonly: Boolean = false) : Closeable {
var entries: MutableList<ZipEntry> = mutableListOf()
private val filePointer: RandomAccessFile = RandomAccessFile(file, "rw")
private val filePointer: RandomAccessFile = RandomAccessFile(file, if (readonly) "r" else "rw")
private var CDNeedsRewrite = false
private val compressionLevel = 5
@ -34,6 +35,10 @@ class ZipFile(file: File) : Closeable {
filePointer.seek(0)
}
private fun assertWritable() {
if (readonly) throw IOException("Archive is read-only")
}
private fun findEndRecord(): ZipEndRecord {
//look from end to start since end record is at the end
for (i in filePointer.length() - 1 downTo 0) {
@ -110,6 +115,8 @@ class ZipFile(file: File) : Closeable {
}
fun addEntryCompressData(entry: ZipEntry, data: ByteArray) {
assertWritable()
val compressor = Deflater(compressionLevel, true)
compressor.setInput(data)
compressor.finish()
@ -136,6 +143,8 @@ class ZipFile(file: File) : Closeable {
}
private fun addEntryCopyData(entry: ZipEntry, data: ByteBuffer, alignment: Int? = null) {
assertWritable()
alignment?.let {
//calculate where data would end up
val dataOffset = filePointer.filePointer + entry.LFHSize
@ -162,6 +171,8 @@ class ZipFile(file: File) : Closeable {
}
fun copyEntriesFromFileAligned(file: ZipFile, entryAlignment: (entry: ZipEntry) -> Int?) {
assertWritable()
for (entry in file.entries) {
if (entries.any { it.fileName == entry.fileName }) continue //don't add duplicates