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Begin rewrite

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This commit is contained in:
amsyarasyiq 2024-02-24 01:45:20 +08:00
parent 4e06328dcd
commit 1d280d78da
8 changed files with 590 additions and 165 deletions
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53
.github/workflows/build.yml vendored Normal file
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@ -0,0 +1,53 @@
name: Build APK
on: [push]
jobs:
build:
name: Build and push
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- uses: actions/setup-java@v3
with:
distribution: "temurin"
java-version: "17"
- name: "Setup Gradle"
uses: gradle/gradle-build-action@v2
- name: "Grant execution permission"
run: chmod +x ./gradlew
- name: "Build APKs"
run: ./gradlew build
- name: "Setup directories"
run: |
mkdir -p /tmp/pyonbuild/apks
mkdir -p /tmp/pyonbuild/tools
- name: "Move debug APK"
run: mv ./app/build/outputs/apk/debug/app-debug.apk /tmp/pyonbuild/apks
- name: "Download uber-apk-signer"
run: wget -nv "https://github.com/patrickfav/uber-apk-signer/releases/download/v1.2.1/uber-apk-signer-1.2.1.jar" -O /tmp/pyonbuild/tools/uber-apk-signer.jar
- name: "Sign release APK"
run: java -jar /tmp/pyonbuild/tools/uber-apk-signer.jar --apks ./app/build/outputs/apk/release/app-release-unsigned.apk --out /tmp/pyonbuild/apks/
- name: "Rename release APK"
run: mv /tmp/pyonbuild/apks/app-release-aligned-debugSigned.apk /tmp/pyonbuild/apks/app-release.apk
- name: "Upload debug APK"
uses: actions/upload-artifact@v3
with:
name: app-debug
path: /tmp/pyonbuild/apks/app-debug.apk
- name: "Upload release APK"
uses: actions/upload-artifact@v3
with:
name: app-release
path: /tmp/pyonbuild/apks/app-release.apk

172
LICENSE Normal file
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@ -0,0 +1,172 @@
Open Software License ("OSL") v. 3.0
This Open Software License (the "License") applies to any original work of
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11) Jurisdiction, Venue and Governing Law. Any action or suit relating to this
License may be brought only in the courts of a jurisdiction wherein the
Licensor resides or in which Licensor conducts its primary business, and under
the laws of that jurisdiction excluding its conflict-of-law provisions. The
application of the United Nations Convention on Contracts for the
International Sale of Goods is expressly excluded. Any use of the Original
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subject to the requirements and penalties of copyright or patent law in the
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12) Attorneys' Fees. In any action to enforce the terms of this License or
seeking damages relating thereto, the prevailing party shall be entitled to
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14) Definition of "You" in This License. "You" throughout this License,
whether in upper or lower case, means an individual or a legal entity
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For legal entities, "You" includes any entity that controls, is controlled by,
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management of such entity, whether by contract or otherwise, or (ii) ownership
of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial
ownership of such entity.
15) Right to Use. You may use the Original Work in all ways not otherwise
restricted or conditioned by this License or by law, and Licensor promises not
to interfere with or be responsible for such uses by You.
16) Modification of This License. This License is Copyright © 2005 Lawrence
Rosen. Permission is granted to copy, distribute, or communicate this License
without modification. Nothing in this License permits You to modify this
License as applied to the Original Work or to Derivative Works. However, You
may modify the text of this License and copy, distribute or communicate your
modified version (the "Modified License") and apply it to other original works
of authorship subject to the following conditions: (i) You may not indicate in
any way that your Modified License is the "Open Software License" or "OSL" and
you may not use those names in the name of your Modified License; (ii) You
must replace the notice specified in the first paragraph above with the notice
"Licensed under <insert your license name here>" or with a notice of your own
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may not claim that your original works are open source software unless your
Modified License has been approved by Open Source Initiative (OSI) and You
comply with its license review and certification process.

3
app/build.gradle.kts
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@ -13,7 +13,7 @@ android {
minSdk = 24
targetSdk = 33
versionCode = 1
versionName = "1.0.0-rewrite"
versionName = "0.1.0"
}
buildTypes {
@ -37,6 +37,7 @@ android {
dependencies {
compileOnly("de.robv.android.xposed:api:82")
implementation("androidx.core:core:1.10.1")
implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.5.0")
implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.9")
implementation("io.ktor:ktor-client-core:2.3.0")

13
app/src/main/assets/js/preinit.js
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@ -1,13 +0,0 @@
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

247
app/src/main/kotlin/com/pyoncord/xposed/Main.kt
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@ -1,97 +1,118 @@
package com.pyoncord.xposed
import android.app.Activity
import android.content.Intent
import android.content.Context
import android.content.res.AssetManager
import android.content.res.Resources
import android.content.res.XModuleResources
import android.graphics.drawable.Drawable
import android.graphics.Typeface
import android.net.Uri
import android.os.Build
import android.os.Bundle
import android.os.Environment
import android.util.Log
import android.annotation.SuppressLint
import android.graphics.fonts.Font
import de.robv.android.xposed.IXposedHookLoadPackage
import de.robv.android.xposed.IXposedHookZygoteInit
import de.robv.android.xposed.XC_MethodHook
import de.robv.android.xposed.XposedBridge
import de.robv.android.xposed.callbacks.XC_LoadPackage
import io.ktor.client.*
import io.ktor.client.call.*
import io.ktor.client.engine.cio.*
import io.ktor.client.plugins.*
import io.ktor.client.request.*
import io.ktor.client.engine.cio.*
import io.ktor.client.statement.*
import io.ktor.client.plugins.*
import io.ktor.http.*
import kotlinx.coroutines.*
import kotlinx.serialization.*
import kotlinx.serialization.json.*
import java.io.File
import java.lang.Exception
import java.lang.System
import java.util.HashMap
class Main : IXposedHookZygoteInit, IXposedHookLoadPackage {
companion object {
const val LOG_TAG = "Pyoncord"
const val DEFAULT_BUNDLE_ENDPOINT = "https://raw.githubusercontent.com/pyoncord/pyoncord/builds/pyoncord.js"
@Serializable
data class CustomLoadUrl(
val enabled: Boolean,
val url: String
)
@Serializable
data class LoaderConfig(
val customLoadUrl: CustomLoadUrl,
val loadReactDevTools: Boolean? = null,
val loadPyoncord: Boolean? = null
)
val PYONCORD_DIR = File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS), "pyoncord").apply { mkdirs() }
class Main : IXposedHookLoadPackage {
private val pyonModules: Array<PyonModule> = arrayOf(
ThemeModule(),
SysColorsModule()
)
val CACHE_DIR = File(PYONCORD_DIR, "cache").apply { mkdir() }
val DRAWABLES_DIR = File(PYONCORD_DIR, "drawables").apply { mkdir() }
fun buildLoaderJsonString(): String {
val obj = buildJsonObject {
put("loaderName", "PyoncordXposed")
val bundle = File(PYONCORD_DIR, "pyoncord.js")
val etag = File(PYONCORD_DIR, "etag")
val loaderPayloadJson = buildJsonObject {
put("loader", "PyoncordXposed")
for (module in pyonModules) {
module.buildJson(this)
}
}
private lateinit var resources: XModuleResources
private lateinit var appActivity: Activity
// Assign module resources in process zygote
override fun initZygote(startupParam: IXposedHookZygoteInit.StartupParam) {
resources = XModuleResources.createInstance(startupParam.modulePath, null)
return Json.encodeToString(obj)
}
override fun handleLoadPackage(lpparam: XC_LoadPackage.LoadPackageParam) = with(lpparam) {
val reactActivity = runCatching {
classLoader.loadClass("com.discord.react_activities.ReactActivity")
}.getOrElse { return@with } // Package is our the target app, return
override fun handleLoadPackage(param: XC_LoadPackage.LoadPackageParam) = with (param) {
val catalystInstanceImpl = runCatching {
classLoader.loadClass("com.facebook.react.bridge.CatalystInstanceImpl")
}.getOrElse { return@with }
XposedBridge.hookMethod(reactActivity.getDeclaredMethod("onCreate", Bundle::class.java), object : XC_MethodHook() {
override fun beforeHookedMethod(param: MethodHookParam) {
appActivity = param.thisObject as Activity
for (module in pyonModules) module.onInit(param)
init(lpparam)
}
})
val loadScriptFromAssets = catalystInstanceImpl.getDeclaredMethod(
"jniLoadScriptFromAssets",
AssetManager::class.java,
String::class.java,
Boolean::class.javaPrimitiveType
).apply { isAccessible = true }
val loadScriptFromFile = catalystInstanceImpl.getDeclaredMethod(
"jniLoadScriptFromFile",
String::class.java,
String::class.java,
Boolean::class.javaPrimitiveType
).apply { isAccessible = true }
val setGlobalVariable = catalystInstanceImpl.getDeclaredMethod(
"setGlobalVariable",
String::class.java,
String::class.java
).apply { isAccessible = true }
val cacheDir = File(appInfo.dataDir, "cache/pyoncord").apply { mkdirs() }
val filesDir = File(appInfo.dataDir, "files/pyoncord").apply { mkdirs() }
val preloadsDir = File(filesDir, "preloads").apply { mkdirs() }
val bundle = File(cacheDir, "bundle.js")
val etag = File(cacheDir, "etag.txt")
val configFile = File(filesDir, "loader.json")
val config = try {
if (!configFile.exists()) throw Exception()
Json { ignoreUnknownKeys = true }.decodeFromString(configFile.readText())
} catch (_: Exception) {
LoaderConfig(
customLoadUrl = CustomLoadUrl(
enabled = false,
url = "http://localhost:4040/bunny.js"
),
loadReactDevTools = false,
loadPyoncord = false
)
}
fun createEvalFile(code: String, identifier: String) = File(CACHE_DIR, "$identifier.js").apply { writeText(code) }
fun restartApp() = with(appActivity.applicationContext) {
val intent = packageManager.getLaunchIntentForPackage(packageName)!!
appActivity.startActivity(Intent.makeRestartActivityTask(intent.component))
System.exit(0)
}
suspend fun checkForUpdate(): Unit = withContext(Dispatchers.IO) {
val scope = MainScope()
val httpJob = scope.async(Dispatchers.IO) {
try {
val client = HttpClient(CIO) {
install(HttpTimeout) { requestTimeoutMillis = 1000 }
install(UserAgent) { agent = "PyoncordXposed" }
install(UserAgent) { agent = "PyonXposed" }
}
try {
val response: HttpResponse = client.get(DEFAULT_BUNDLE_ENDPOINT) {
val url =
if (config.customLoadUrl.enabled) config.customLoadUrl.url
else if (config.loadPyoncord == true) "https://raw.githubusercontent.com/pyoncord/pyoncord/builds/pyoncord.js"
else "https://raw.githubusercontent.com/pyoncord/detta-builds/main/bunny.js"
val response: HttpResponse = client.get(url) {
headers {
if (etag.exists() && bundle.exists()) {
append(HttpHeaders.IfNoneMatch, etag.readText())
@ -100,92 +121,62 @@ class Main : IXposedHookZygoteInit, IXposedHookLoadPackage {
}
if (response.status == HttpStatusCode.OK) {
Log.i(LOG_TAG, "New bundle found, updating and restarting...")
bundle.writeBytes(response.body())
response.headers["Etag"]?.let { etag.writeText(it) }
restartApp()
}
return@async
} catch (e: Exception) {
Log.e(LOG_TAG, "An error occured while downloading pyoncord bundle.", e)
} finally {
client.close()
Log.e("Pyoncord", "Failed to download Pyoncord")
}
}
@SuppressLint("NewApi")
fun init(param: XC_LoadPackage.LoadPackageParam) = with(param) {
val catalystInstance = classLoader.loadClass("com.facebook.react.bridge.CatalystInstanceImpl")
MainScope().launch() {
checkForUpdate()
}
runCatching {
// Fight package renaming side effects
if (packageName != "com.discord") {
val getIdentifier = Resources::class.java.getDeclaredMethod("getIdentifier", String::class.java, String::class.java, String::class.java)
XposedBridge.hookMethod(getIdentifier, object: XC_MethodHook() {
val patch = object : XC_MethodHook() {
override fun beforeHookedMethod(param: MethodHookParam) {
if (param.args[2] == packageName) param.args[2] = "com.discord"
}
})
}
runBlocking { httpJob.join() }
// Custom drawables
val uriCache = mutableMapOf<String, Uri>()
val resourceDrawableIdHelper = classLoader.loadClass("com.facebook.react.views.imagehelper.ResourceDrawableIdHelper")
XposedBridge.invokeOriginalMethod(
setGlobalVariable,
param.thisObject,
arrayOf("__PYON_LOADER__", buildLoaderJsonString())
)
XposedBridge.hookMethod(resourceDrawableIdHelper.getDeclaredMethod("getResourceDrawableUri", Context::class.java, String::class.java), object: XC_MethodHook() {
override fun beforeHookedMethod(param: MethodHookParam) {
val name = param.args[1] as? String ?: return
val uri = uriCache.getOrPut(name) {
File(DRAWABLES_DIR, "$name.png").takeIf { it.exists() }?.let {
Uri.fromFile(it)
} ?: Uri.EMPTY
}
if (uri != Uri.EMPTY) param.result = uri
}
})
}
val loadScriptFromAssets = catalystInstance.getDeclaredMethod("jniLoadScriptFromAssets", AssetManager::class.java, String::class.java, Boolean::class.javaPrimitiveType)
val loadScriptFromFile = catalystInstance.getDeclaredMethod("jniLoadScriptFromFile", String::class.java, String::class.java, Boolean::class.javaPrimitiveType)
// TODO: Loader config
val hook = object: XC_MethodHook() {
override fun beforeHookedMethod(param: MethodHookParam) = with(param) {
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))
preloadsDir
.walk()
.filter { it.isFile && it.extension == "js" }
.forEach { file ->
XposedBridge.invokeOriginalMethod(
loadScriptFromFile,
thisObject,
arrayOf(payloadFile.absolutePath, "pyoncord-payload", true)
param.thisObject,
arrayOf(file.absolutePath, file.absolutePath, param.args[2])
)
}
// Invoke the original method
XposedBridge.invokeOriginalMethod(method, thisObject, args)
// Execute our bundle
if (bundle.exists()) XposedBridge.invokeOriginalMethod(
XposedBridge.invokeOriginalMethod(
loadScriptFromFile,
thisObject,
arrayOf(bundle.absolutePath, bundle.absolutePath, args[2])
param.thisObject,
arrayOf(bundle.absolutePath, bundle.absolutePath, param.args[2])
)
}
}
XposedBridge.hookMethod(loadScriptFromAssets, patch)
XposedBridge.hookMethod(loadScriptFromFile, patch)
// Fighting the side effects of changing the package name
if (packageName != "com.discord") {
val getIdentifier = Resources::class.java.getDeclaredMethod(
"getIdentifier",
String::class.java,
String::class.java,
String::class.java
)
// Prevent from invoking the original method
setResult(null)
XposedBridge.hookMethod(getIdentifier, object: XC_MethodHook() {
override fun beforeHookedMethod(mhparam: MethodHookParam) = with(mhparam) {
if (args[2] == param.packageName) args[2] = "com.discord"
}
})
}
}
XposedBridge.hookMethod(loadScriptFromAssets, hook)
XposedBridge.hookMethod(loadScriptFromFile, hook)
return@with
}
}

9
app/src/main/kotlin/com/pyoncord/xposed/PyonModule.kt Normal file
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@ -0,0 +1,9 @@
package com.pyoncord.xposed
import de.robv.android.xposed.callbacks.XC_LoadPackage
import kotlinx.serialization.json.JsonObjectBuilder
abstract class PyonModule {
open fun buildJson(builder: JsonObjectBuilder) {}
open fun onInit(packageParam: XC_LoadPackage.LoadPackageParam) {}
}

50
app/src/main/kotlin/com/pyoncord/xposed/SysColorsModule.kt Normal file
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@ -0,0 +1,50 @@
package com.pyoncord.xposed
import android.app.AndroidAppHelper
import android.content.Context
import android.os.Build
import androidx.core.content.ContextCompat
import kotlinx.serialization.Serializable
import kotlinx.serialization.json.*
@Serializable
data class SysColors(
val neutral1: List<String>,
val neutral2: List<String>,
val accent1: List<String>,
val accent2: List<String>,
val accent3: List<String>
)
class SysColorsModule : PyonModule() {
private lateinit var context: Context
fun isSupported() = Build.VERSION.SDK_INT >= Build.VERSION_CODES.S
override fun buildJson(builder: JsonObjectBuilder) {
context = AndroidAppHelper.currentApplication()
val accents = arrayOf("accent1", "accent2", "accent3", "neutral1", "neutral2")
val shades = arrayOf(0, 10, 50, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000)
builder.apply {
put("isSysColorsSupported", isSupported())
if (isSupported()) putJsonObject("sysColors") {
for (accent in accents) putJsonArray(accent) {
for (shade in shades) {
val colorName = "system_" + accent + "_" + shade
val colorResourceId = runCatching {
android.R.color::class.java.getField(colorName).getInt(null)
}.getOrElse { 0 }
add(convertToColor(colorResourceId))
}
}
}
}
}
fun convertToColor(id: Int): String {
val clr = if (isSupported()) ContextCompat.getColor(context, id) else 0
return String.format("#%06X", 0xFFFFFF and clr)
}
}

162
app/src/main/kotlin/com/pyoncord/xposed/ThemeModule.kt Normal file
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@ -0,0 +1,162 @@
package com.pyoncord.xposed
import android.content.Context
import android.graphics.Color
import android.content.res.Resources
import de.robv.android.xposed.XC_MethodHook
import de.robv.android.xposed.XposedBridge
import de.robv.android.xposed.callbacks.XC_LoadPackage
import kotlinx.serialization.ExperimentalSerializationApi
import kotlinx.serialization.Serializable
import kotlinx.serialization.decodeFromString
import kotlinx.serialization.encodeToString
import kotlinx.serialization.json.Json
import java.io.File
import kotlinx.serialization.json.*
@Serializable
data class Author(
val name: String,
val id: String? = null
)
@Serializable
data class ThemeData(
val name: String,
val description: String? = null,
val authors: List<Author>? = null,
val spec: Int,
val semanticColors: Map<String, List<String>>? = null,
val rawColors: Map<String, String>? = null
)
@Serializable
data class Theme(
val id: String,
val selected: Boolean,
val data: ThemeData
)
class ThemeModule : PyonModule() {
private lateinit var param: XC_LoadPackage.LoadPackageParam
private var theme: Theme? = null
private val rawColorMap = mutableMapOf<String, Int>()
@ExperimentalSerializationApi
override fun buildJson(builder: JsonObjectBuilder) {
builder.apply {
put("hasThemeSupport", true)
if (theme != null)
put("storedTheme", Json.encodeToJsonElement<Theme>(theme!!))
else
put("storedTheme", null)
}
}
override fun onInit(packageParam: XC_LoadPackage.LoadPackageParam) {
param = packageParam
theme = getTheme()
hookTheme()
}
fun File.isValidish(): Boolean {
if (!this.exists()) return false
val text = this.readText()
return !text.isBlank() && text != "{}" && text != "null"
}
fun getTheme(): Theme? {
val filesDir = File(param.appInfo.dataDir, "files").apply { mkdirs() }
val pyonDir = File(filesDir, "pyoncord").apply { mkdirs() }
val themeFile = File(pyonDir, "current-theme.json")
val legacyThemeFile = File(filesDir, "vendetta_theme.json")
if (legacyThemeFile.isValidish() && !themeFile.isValidish()) {
legacyThemeFile.copyTo(themeFile, overwrite = true)
}
if (!themeFile.isValidish()) return null
val themeText = themeFile.readText()
return try {
Json { ignoreUnknownKeys = true }.decodeFromString<Theme>(themeText)
} catch (e: Exception) { null }
}
fun hookTheme() {
val themeManager = param.classLoader.loadClass("com.discord.theme.utils.ColorUtilsKt")
val darkTheme = param.classLoader.loadClass("com.discord.theme.DarkTheme")
val lightTheme = param.classLoader.loadClass("com.discord.theme.LightTheme")
val theme = this.theme
if (theme == null) return
// Apply rawColors
theme.data.rawColors?.forEach { (key, value) ->
rawColorMap[key.lowercase()] = hexStringToColorInt(value)
}
// Apply semanticColors
theme.data.semanticColors?.forEach { (key, value) ->
// TEXT_NORMAL -> getTextNormal
val methodName = "get${key.split("_").joinToString("") { it.lowercase().replaceFirstChar { it.uppercase() } }}"
value.forEachIndexed { index, v ->
when (index) {
0 -> hookThemeMethod(darkTheme, methodName, hexStringToColorInt(v))
1 -> hookThemeMethod(lightTheme, methodName, hexStringToColorInt(v))
}
}
}
// If there's any rawColors value, hook the color getter
if (!theme.data.rawColors.isNullOrEmpty()) {
val getColorCompat = themeManager.getDeclaredMethod(
"getColorCompat",
Resources::class.java,
Int::class.javaPrimitiveType,
Resources.Theme::class.java,
)
val getColorCompatLegacy = themeManager.getDeclaredMethod(
"getColorCompat",
Context::class.java,
Int::class.javaPrimitiveType
)
val patch = object : XC_MethodHook() {
override fun beforeHookedMethod(param: MethodHookParam) {
val arg1 = param.args[0]
val resources = if (arg1 is Context) arg1.resources else (arg1 as Resources)
val name = resources.getResourceEntryName(param.args[1] as Int)
if (rawColorMap[name] != null) param.result = rawColorMap[name]
}
}
XposedBridge.hookMethod(getColorCompat, patch)
XposedBridge.hookMethod(getColorCompatLegacy, patch)
}
}
// Convert 0xRRGGBBAA to 0XAARRGGBB
fun hexStringToColorInt(hexString: String): Int {
val parsed = Color.parseColor(hexString)
return parsed.takeIf { hexString.length == 7 } ?: parsed and 0xFFFFFF or (parsed ushr 24)
}
fun hookThemeMethod(themeClass: Class<*>, methodName: String, themeValue: Int) {
try {
themeClass.getDeclaredMethod(methodName).let { method ->
// Log.i("Hooking $methodName -> ${themeValue.toString(16)}")
XposedBridge.hookMethod(method, object : XC_MethodHook() {
override fun beforeHookedMethod(param: MethodHookParam) {
param.result = themeValue
}
})
}
} catch (ex: NoSuchMethodException) {
// do nothing
}
}
}