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Payloading to JS

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This commit is contained in:
Amsyar Rasyiq 2023-05-27 02:15:38 +00:00
parent e087325226
commit 77810cd904
4 changed files with 37 additions and 27 deletions
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3
app/src/main/assets/js/identity.js
View file

@ -1,3 +0,0 @@
globalThis.__pyoncord_loader_payload = {
name: "PyoncordXposed",
}

10
app/src/main/assets/js/modules.js
View file

@ -1,10 +0,0 @@
const oldObjectCreate = this.Object.create;
globalThis.Object.create = (...args) => {
const obj = oldObjectCreate.apply(globalThis.Object, args);
if (args[0] === null) {
globalThis.modules = obj;
globalThis.Object.create = oldObjectCreate;
}
return obj;
};

13
app/src/main/assets/js/preinit.js Normal file
View file

@ -0,0 +1,13 @@
let originalObjectCreate = Object.create
Object.create = function create(proto) {
let ret = originalObjectCreate.apply(this, arguments)
if (proto === null) {
Object.create = originalObjectCreate
return modules = ret
}
return ret
}
Object.freeze = Object

38
app/src/main/kotlin/com/pyoncord/xposed/Main.kt
View file

@ -40,15 +40,17 @@ class Main : IXposedHookZygoteInit, IXposedHookLoadPackage {
const val LOG_TAG = "Pyoncord"
const val DEFAULT_BUNDLE_ENDPOINT = "https://raw.githubusercontent.com/pyoncord/pyoncord/builds/pyoncord.js"
val pyoncord = File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS), "pyoncord").apply { mkdirs() }
val PYONCORD_DIR = File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS), "pyoncord").apply { mkdirs() }
val cache = File(pyoncord, "cache").apply { mkdirs() }
val CACHE_DIR = File(PYONCORD_DIR, "cache").apply { mkdir() }
val DRAWABLES_DIR = File(PYONCORD_DIR, "drawables").apply { mkdir() }
val bundle = File(PYONCORD_DIR, "pyoncord.js")
val etag = File(PYONCORD_DIR, "etag")
val bundle = File(cache, "pyoncord.js")
val etag = File(cache, "etag")
// val fontsDir = File(pyoncord, "fonts")
val drawablesDir = File(pyoncord, "drawables")
val loaderPayloadJson = buildJsonObject {
put("loader", "PyoncordXposed")
}
}
private lateinit var resources: XModuleResources
@ -73,6 +75,8 @@ class Main : IXposedHookZygoteInit, IXposedHookLoadPackage {
})
}
fun createEvalFile(code: String, identifier: String) = File(CACHE_DIR, "$identifier.js").apply { writeText(code) }
fun restartApp() = with(appActivity.applicationContext) {
val intent = packageManager.getLaunchIntentForPackage(packageName)!!
@ -130,7 +134,7 @@ class Main : IXposedHookZygoteInit, IXposedHookLoadPackage {
if (path.contains("/pyoncord/")) {
// We do a little hack :P
val actualPath = path.substringAfter("/pyoncord/")
args[0] = File(pyoncord, actualPath).absolutePath
args[0] = File(PYONCORD_DIR, actualPath).absolutePath
}
}
}
@ -147,7 +151,7 @@ class Main : IXposedHookZygoteInit, IXposedHookLoadPackage {
val storageDirs = storageDirsField.get(thisObject) as HashMap<String, String>
if (dir == "documents" && path.startsWith("pyoncord/")) {
val docsDir = File(storageDirs["documents"] as String).toPath()
args[1] = docsDir.relativize(File(pyoncord.parentFile, path).toPath()).toString()
args[1] = docsDir.relativize(File(PYONCORD_DIR.parentFile, path).toPath()).toString()
}
}
}
@ -167,7 +171,7 @@ class Main : IXposedHookZygoteInit, IXposedHookLoadPackage {
// Custom fonts
val fontHook = object : XC_MethodHook() {
override fun beforeHookedMethod(param: MethodHookParam): Unit = with(param) {
File(pyoncord, args[1] as String).takeIf { it.exists() }?.let {
File(PYONCORD_DIR, args[1] as String).takeIf { it.exists() }?.let {
Log.d(LOG_TAG, "Overriding font from ${args[1]} to $it")
result = if (method.name == "createFromAsset") Typeface.createFromFile(it.absolutePath) else Font.Builder(it)
}
@ -193,7 +197,7 @@ class Main : IXposedHookZygoteInit, IXposedHookLoadPackage {
val name = param.args[1] as? String ?: return
val uri = uriCache.getOrPut(name) {
File(drawablesDir, "$name.png").takeIf { it.exists() }?.let {
File(DRAWABLES_DIR, "$name.png").takeIf { it.exists() }?.let {
Uri.fromFile(it)
} ?: Uri.EMPTY
}
@ -209,9 +213,15 @@ class Main : IXposedHookZygoteInit, IXposedHookLoadPackage {
// TODO: Loader config
val hook = object: XC_MethodHook() {
override fun beforeHookedMethod(param: MethodHookParam) = with(param) {
// Load pre-patches and identity
XposedBridge.invokeOriginalMethod(loadScriptFromAssets, thisObject, arrayOf(resources.assets, "assets://js/modules.js", true))
XposedBridge.invokeOriginalMethod(loadScriptFromAssets, thisObject, arrayOf(resources.assets, "assets://js/identity.js", true))
val payloadFile = createEvalFile("PYONCORD_LOADER_PAYLOAD=${Json.encodeToString(loaderPayloadJson)}", "payload")
// Load pre-patches and payload
XposedBridge.invokeOriginalMethod(loadScriptFromAssets, thisObject, arrayOf(resources.assets, "assets://js/preinit.js", true))
XposedBridge.invokeOriginalMethod(
loadScriptFromFile,
thisObject,
arrayOf(payloadFile.absolutePath, "pyoncord-payload", true)
)
// Invoke the original method
XposedBridge.invokeOriginalMethod(method, thisObject, args)