Extract parsing command line file to a separate class + add unit tests
This commit is contained in:
melquiadess
parent
29b3d9e9e5
commit
839600b744
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@ -11,6 +11,8 @@ apply from: "../scripts/publish-module.gradle"
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dependencies {
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implementation "androidx.fragment:fragment:$versions.fragmentVersion"
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testImplementation "junit:junit:4.13.2"
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}
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def pathToRootDir = "../../../../"
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@ -74,6 +76,7 @@ android {
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main {
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manifest.srcFile 'AndroidManifest.xml'
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java.srcDirs = ['src']
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test.java.srcDirs = ['srcTest/java']
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res.srcDirs = ['res']
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aidl.srcDirs = ['aidl']
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assets.srcDirs = ['assets']
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@ -56,6 +56,7 @@ import org.godotengine.godot.io.directory.DirectoryAccessHandler
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import org.godotengine.godot.io.file.FileAccessHandler
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import org.godotengine.godot.plugin.GodotPluginRegistry
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import org.godotengine.godot.tts.GodotTTS
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import org.godotengine.godot.utils.CommandLineFileParser
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import org.godotengine.godot.utils.GodotNetUtils
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import org.godotengine.godot.utils.PermissionsUtil
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import org.godotengine.godot.utils.PermissionsUtil.requestPermission
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@ -68,7 +69,7 @@ import org.godotengine.godot.xr.XRMode
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import java.io.File
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import java.io.FileInputStream
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import java.io.InputStream
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import java.nio.charset.StandardCharsets
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import java.lang.Exception
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import java.security.MessageDigest
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import java.util.*
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@ -120,6 +121,7 @@ class Godot(private val context: Context) : SensorEventListener {
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val directoryAccessHandler = DirectoryAccessHandler(context)
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val fileAccessHandler = FileAccessHandler(context)
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val netUtils = GodotNetUtils(context)
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private val commandLineFileParser = CommandLineFileParser()
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/**
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* Tracks whether [onCreate] was completed successfully.
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@ -908,47 +910,18 @@ class Godot(private val context: Context) : SensorEventListener {
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}
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private fun getCommandLine(): MutableList<String> {
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val original: MutableList<String> = parseCommandLine()
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val hostCommandLine = primaryHost?.commandLine
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if (!hostCommandLine.isNullOrEmpty()) {
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original.addAll(hostCommandLine)
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}
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return original
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}
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private fun parseCommandLine(): MutableList<String> {
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val inputStream: InputStream
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return try {
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inputStream = requireActivity().assets.open("_cl_")
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val len = ByteArray(4)
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var r = inputStream.read(len)
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if (r < 4) {
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return mutableListOf()
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}
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val argc =
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(len[3].toInt() and 0xFF) shl 24 or ((len[2].toInt() and 0xFF) shl 16) or ((len[1].toInt() and 0xFF) shl 8) or (len[0].toInt() and 0xFF)
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val cmdline = ArrayList<String>(argc)
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for (i in 0 until argc) {
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r = inputStream.read(len)
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if (r < 4) {
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return mutableListOf()
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}
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val strlen =
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(len[3].toInt() and 0xFF) shl 24 or ((len[2].toInt() and 0xFF) shl 16) or ((len[1].toInt() and 0xFF) shl 8) or (len[0].toInt() and 0xFF)
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if (strlen > 65535) {
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return mutableListOf()
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}
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val arg = ByteArray(strlen)
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r = inputStream.read(arg)
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if (r == strlen) {
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cmdline.add(String(arg, StandardCharsets.UTF_8))
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}
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}
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cmdline
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} catch (e: Exception) {
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// The _cl_ file can be missing with no adverse effect
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val commandLine = try {
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commandLineFileParser.parseCommandLine(requireActivity().assets.open("_cl_"))
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} catch (ignored: Exception) {
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mutableListOf()
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}
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val hostCommandLine = primaryHost?.commandLine
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if (!hostCommandLine.isNullOrEmpty()) {
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commandLine.addAll(hostCommandLine)
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}
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return commandLine
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}
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/**
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@ -0,0 +1,83 @@
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/**************************************************************************/
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/* CommandLineFileParser.kt */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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package org.godotengine.godot.utils
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import java.io.InputStream
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import java.nio.charset.StandardCharsets
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import java.util.ArrayList
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/**
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* A class that parses the content of file storing command line params. Usually, this file is saved
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* in `assets/_cl_` on exporting an apk
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*
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* Returns a mutable list of command lines
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*/
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internal class CommandLineFileParser {
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fun parseCommandLine(inputStream: InputStream): MutableList<String> {
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return try {
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val headerBytes = ByteArray(4)
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var argBytes = inputStream.read(headerBytes)
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if (argBytes < 4) {
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return mutableListOf()
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}
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val argc = decodeHeaderIntValue(headerBytes)
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val cmdline = ArrayList<String>(argc)
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for (i in 0 until argc) {
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argBytes = inputStream.read(headerBytes)
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if (argBytes < 4) {
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return mutableListOf()
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}
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val strlen = decodeHeaderIntValue(headerBytes)
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if (strlen > 65535) {
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return mutableListOf()
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}
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val arg = ByteArray(strlen)
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argBytes = inputStream.read(arg)
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if (argBytes == strlen) {
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cmdline.add(String(arg, StandardCharsets.UTF_8))
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}
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}
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cmdline
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} catch (e: Exception) {
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// The _cl_ file can be missing with no adverse effect
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mutableListOf()
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}
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}
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private fun decodeHeaderIntValue(headerBytes: ByteArray): Int =
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(headerBytes[3].toInt() and 0xFF) shl 24 or
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((headerBytes[2].toInt() and 0xFF) shl 16) or
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((headerBytes[1].toInt() and 0xFF) shl 8) or
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(headerBytes[0].toInt() and 0xFF)
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}
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@ -0,0 +1,104 @@
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/**************************************************************************/
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/* CommandLineFileParserTest.kt */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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package org.godotengine.godot.utils
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import org.junit.Test
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import org.junit.runner.RunWith
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import org.junit.runners.Parameterized
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import java.io.ByteArrayInputStream
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import java.io.InputStream
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// Godot saves command line params in the `assets/_cl_` file on exporting an apk. By default,
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// without any other commands specified in `command_line/extra_args` in Export window, the content
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// of that _cl_ file consists of only the `--xr_mode_regular` and `--use_immersive` flags.
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// The `CL_` prefix here refers to that file
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private val CL_DEFAULT_NO_EXTRA_ARGS = byteArrayOf(2, 0, 0, 0, 17, 0, 0, 0, 45, 45, 120, 114, 95, 109, 111, 100, 101, 95, 114, 101, 103, 117, 108, 97, 114, 15, 0, 0, 0, 45, 45, 117, 115, 101, 95, 105, 109, 109, 101, 114, 115, 105, 118, 101)
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private val CL_ONE_EXTRA_ARG = byteArrayOf(3, 0, 0, 0, 15, 0, 0, 0, 45, 45, 117, 110, 105, 116, 95, 116, 101, 115, 116, 95, 97, 114, 103, 17, 0, 0, 0, 45, 45, 120, 114, 95, 109, 111, 100, 101, 95, 114, 101, 103, 117, 108, 97, 114, 15, 0, 0, 0, 45, 45, 117, 115, 101, 95, 105, 109, 109, 101, 114, 115, 105, 118, 101)
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private val CL_TWO_EXTRA_ARGS = byteArrayOf(4, 0, 0, 0, 16, 0, 0, 0, 45, 45, 117, 110, 105, 116, 95, 116, 101, 115, 116, 95, 97, 114, 103, 49, 16, 0, 0, 0, 45, 45, 117, 110, 105, 116, 95, 116, 101, 115, 116, 95, 97, 114, 103, 50, 17, 0, 0, 0, 45, 45, 120, 114, 95, 109, 111, 100, 101, 95, 114, 101, 103, 117, 108, 97, 114, 15, 0, 0, 0, 45, 45, 117, 115, 101, 95, 105, 109, 109, 101, 114, 115, 105, 118, 101)
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private val CL_EMPTY = byteArrayOf()
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private val CL_HEADER_TOO_SHORT = byteArrayOf(0, 0, 0)
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private val CL_INCOMPLETE_FIRST_ARG = byteArrayOf(2, 0, 0, 0, 17, 0, 0)
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private val CL_LENGTH_TOO_LONG_IN_FIRST_ARG = byteArrayOf(2, 0, 0, 0, 17, 0, 0, 45, 45, 120, 114, 95, 109, 111, 100, 101, 95, 114, 101, 103, 117, 108, 97, 114, 15, 0, 0, 0, 45, 45, 117, 115, 101, 95, 105, 109, 109, 101, 114, 115, 105, 118, 101)
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private val CL_MISMATCHED_ARG_LENGTH_AND_HEADER_ONE_ARG = byteArrayOf(2, 0, 0, 0, 10, 0, 0, 0, 45, 45, 120, 114)
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private val CL_MISMATCHED_ARG_LENGTH_AND_HEADER_IN_FIRST_ARG = byteArrayOf(2, 0, 0, 0, 17, 0, 0, 0, 45, 45, 120, 114, 95, 109, 111, 100, 101, 95, 114, 101, 103, 117, 108, 97, 15, 0, 0, 0, 45, 45, 117, 115, 101, 95, 105, 109, 109, 101, 114, 115, 105, 118, 101)
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@RunWith(Parameterized::class)
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class CommandLineFileParserTest(
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private val inputStreamArg: InputStream,
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private val expectedResult: List<String>,
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) {
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private val commandLineFileParser = CommandLineFileParser()
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companion object {
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@JvmStatic
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@Parameterized.Parameters
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fun data() = listOf(
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arrayOf(ByteArrayInputStream(CL_EMPTY), listOf<String>()),
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arrayOf(ByteArrayInputStream(CL_HEADER_TOO_SHORT), listOf<String>()),
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arrayOf(ByteArrayInputStream(CL_DEFAULT_NO_EXTRA_ARGS), listOf(
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"--xr_mode_regular",
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"--use_immersive",
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)),
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arrayOf(ByteArrayInputStream(CL_ONE_EXTRA_ARG), listOf(
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"--unit_test_arg",
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"--xr_mode_regular",
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"--use_immersive",
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)),
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arrayOf(ByteArrayInputStream(CL_TWO_EXTRA_ARGS), listOf(
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"--unit_test_arg1",
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"--unit_test_arg2",
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"--xr_mode_regular",
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"--use_immersive",
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)),
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arrayOf(ByteArrayInputStream(CL_INCOMPLETE_FIRST_ARG), listOf<String>()),
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arrayOf(ByteArrayInputStream(CL_LENGTH_TOO_LONG_IN_FIRST_ARG), listOf<String>()),
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arrayOf(ByteArrayInputStream(CL_MISMATCHED_ARG_LENGTH_AND_HEADER_ONE_ARG), listOf<String>()),
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arrayOf(ByteArrayInputStream(CL_MISMATCHED_ARG_LENGTH_AND_HEADER_IN_FIRST_ARG), listOf<String>()),
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)
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}
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@Test
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fun `Given inputStream, When parsing command line, Then a correct list is returned`() {
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// given
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val inputStream = inputStreamArg
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// when
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val result = commandLineFileParser.parseCommandLine(inputStream)
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// then
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assert(result == expectedResult) { "Expected: $expectedResult Actual: $result" }
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}
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}
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