albexk
GitHub
parent
f6175c2c69
commit
3e02dfef63
22 changed files with 577 additions and 154 deletions
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@ -1,33 +1,252 @@
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package org.amnezia.vpn.util
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import android.content.Context
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import android.icu.text.DateFormat
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import android.icu.text.SimpleDateFormat
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import android.os.Build
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import android.os.Process
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import java.io.File
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import java.io.IOException
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import java.io.RandomAccessFile
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import java.nio.channels.FileChannel
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import java.nio.channels.FileLock
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import java.time.LocalDateTime
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import java.time.format.DateTimeFormatter
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import java.util.Date
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import java.util.Locale
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import java.util.concurrent.locks.ReentrantLock
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import org.amnezia.vpn.util.Log.Priority.D
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import org.amnezia.vpn.util.Log.Priority.E
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import org.amnezia.vpn.util.Log.Priority.F
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import org.amnezia.vpn.util.Log.Priority.I
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import org.amnezia.vpn.util.Log.Priority.V
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import org.amnezia.vpn.util.Log.Priority.W
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import android.util.Log as NativeLog
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class Log {
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companion object {
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fun v(tag: String, msg: String) = debugLog(tag, msg, NativeLog::v)
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private const val TAG = "Log"
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private const val LOG_FILE_NAME = "amneziaVPN.log"
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private const val ROTATE_LOG_FILE_NAME = "amneziaVPN.rotate.log"
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private const val LOCK_FILE_NAME = ".lock"
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private const val DATE_TIME_PATTERN = "MM-dd HH:mm:ss.SSS"
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private const val PREFS_SAVE_LOGS_KEY = "SAVE_LOGS"
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private const val LOG_MAX_FILE_SIZE = 1024 * 1024
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fun d(tag: String, msg: String) = debugLog(tag, msg, NativeLog::d)
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/**
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* | Priority | Save to file | Logcat logging |
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* |-------------------|--------------|----------------------------------------------|
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* | Verbose | Don't save | Only in Debug build |
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* | Debug | Save | In Debug build or if log saving is enabled |
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* | Info, Warn, Error | Save | Enabled |
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* | Fatal (Assert) | Save | Enabled. Depending on system configuration, |
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* | | | create a report and/or terminate the process |
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*/
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object Log {
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private val dateTimeFormat: Any =
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) DateTimeFormatter.ofPattern(DATE_TIME_PATTERN)
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else object : ThreadLocal<DateFormat>() {
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override fun initialValue(): DateFormat = SimpleDateFormat(DATE_TIME_PATTERN, Locale.US)
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}
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fun i(tag: String, msg: String) = log(tag, msg, NativeLog::i)
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private lateinit var logDir: File
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private val logFile: File by lazy { File(logDir, LOG_FILE_NAME) }
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private val rotateLogFile: File by lazy { File(logDir, ROTATE_LOG_FILE_NAME) }
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fun w(tag: String, msg: String) = log(tag, msg, NativeLog::w)
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private val fileLock: FileChannel by lazy { RandomAccessFile(File(logDir, LOCK_FILE_NAME).path, "rw").channel }
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private val threadLock: ReentrantLock by lazy { ReentrantLock() }
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fun e(tag: String, msg: String) = log(tag, msg, NativeLog::e)
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@Volatile
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private var _saveLogs: Boolean = false
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var saveLogs: Boolean
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get() = _saveLogs
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set(value) {
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if (_saveLogs != value) {
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if (value && !logDir.exists() && !logDir.mkdir()) {
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NativeLog.e(TAG, "Failed to create dir: $logDir")
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return
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}
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_saveLogs = value
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Prefs.save(PREFS_SAVE_LOGS_KEY, value)
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}
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}
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fun v(tag: String, msg: Any?) = v(tag, msg.toString())
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@JvmStatic
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fun v(tag: String, msg: String) = log(tag, msg, V)
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fun d(tag: String, msg: Any?) = d(tag, msg.toString())
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@JvmStatic
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fun d(tag: String, msg: String) = log(tag, msg, D)
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fun i(tag: String, msg: Any?) = i(tag, msg.toString())
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@JvmStatic
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fun i(tag: String, msg: String) = log(tag, msg, I)
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fun w(tag: String, msg: Any?) = w(tag, msg.toString())
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@JvmStatic
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fun w(tag: String, msg: String) = log(tag, msg, W)
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fun e(tag: String, msg: Any?) = e(tag, msg.toString())
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@JvmStatic
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fun e(tag: String, msg: String) = log(tag, msg, E)
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private inline fun log(tag: String, msg: String, delegate: (String, String) -> Unit) = delegate(tag, msg)
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@JvmStatic
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fun f(tag: String, msg: String) = log(tag, msg, F)
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private inline fun debugLog(tag: String, msg: String, delegate: (String, String) -> Unit) {
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if (BuildConfig.DEBUG) delegate(tag, msg)
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fun v(tag: String, msg: Any?) = v(tag, msg.toString())
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fun d(tag: String, msg: Any?) = d(tag, msg.toString())
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fun i(tag: String, msg: Any?) = i(tag, msg.toString())
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fun w(tag: String, msg: Any?) = w(tag, msg.toString())
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fun e(tag: String, msg: Any?) = e(tag, msg.toString())
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fun f(tag: String, msg: Any?) = f(tag, msg.toString())
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fun init(context: Context) {
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v(TAG, "Init Log")
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logDir = File(context.cacheDir, "logs")
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saveLogs = Prefs.load(PREFS_SAVE_LOGS_KEY)
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}
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fun getLogs(): String =
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"${deviceInfo()}\n${readLogs()}\nLOGCAT:\n${getLogcat()}"
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fun clearLogs() {
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withLock {
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logFile.delete()
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rotateLogFile.delete()
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}
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}
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private fun log(tag: String, msg: String, priority: Priority) {
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if (saveLogs && priority != V) saveLogMsg(formatLogMsg(tag, msg, priority))
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if (priority == F) {
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NativeLog.wtf(tag, msg)
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} else if (
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(priority != V && priority != D) ||
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(priority == V && BuildConfig.DEBUG) ||
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(priority == D && (BuildConfig.DEBUG || saveLogs))
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) {
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NativeLog.println(priority.level, tag, msg)
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}
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}
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private fun saveLogMsg(msg: String) {
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withTryLock(condition = { logFile.length() > LOG_MAX_FILE_SIZE }) {
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logFile.renameTo(rotateLogFile)
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}
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try {
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logFile.appendText(msg)
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} catch (e: IOException) {
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NativeLog.e(TAG, "Failed to write log: $e")
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}
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}
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private fun formatLogMsg(tag: String, msg: String, priority: Priority): String {
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val date = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
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LocalDateTime.now().format(dateTimeFormat as DateTimeFormatter)
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} else {
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@Suppress("UNCHECKED_CAST")
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(dateTimeFormat as ThreadLocal<DateFormat>).get()?.format(Date())
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}
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return "$date ${Process.myPid()} ${Process.myTid()} $priority [${Thread.currentThread().name}] " +
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"$tag: $msg\n"
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}
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private fun deviceInfo(): String {
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val sb = StringBuilder()
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sb.append("Model: ").appendLine(Build.MODEL)
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sb.append("Brand: ").appendLine(Build.BRAND)
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sb.append("Product: ").appendLine(Build.PRODUCT)
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sb.append("Device: ").appendLine(Build.DEVICE)
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sb.append("Codename: ").appendLine(Build.VERSION.CODENAME)
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sb.append("Release: ").appendLine(Build.VERSION.RELEASE)
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sb.append("SDK: ").appendLine(Build.VERSION.SDK_INT)
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sb.append("ABI: ").appendLine(Build.SUPPORTED_ABIS.joinToString())
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return sb.toString()
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}
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private fun readLogs(): String {
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var logText = ""
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withLock {
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try {
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if (rotateLogFile.exists()) logText = rotateLogFile.readText()
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if (logFile.exists()) logText += logFile.readText()
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} catch (e: IOException) {
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val errorMsg = "Failed to read log: $e"
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NativeLog.e(TAG, errorMsg)
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logText += errorMsg
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}
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}
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return logText
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}
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private fun getLogcat(): String {
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try {
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val process = ProcessBuilder("logcat", "-d").redirectErrorStream(true).start()
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return process.inputStream.reader().readText()
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} catch (e: IOException) {
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val errorMsg = "Failed to get logcat log: $e"
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NativeLog.e(TAG, errorMsg)
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return errorMsg
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}
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}
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private fun withLock(block: () -> Unit) {
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threadLock.lock()
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try {
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var l: FileLock? = null
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try {
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l = fileLock.lock()
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block()
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} catch (e: IOException) {
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NativeLog.e(TAG, "Failed to get file lock: $e")
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} finally {
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try {
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l?.release()
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} catch (e: IOException) {
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NativeLog.e(TAG, "Failed to release file lock: $e")
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}
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}
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} finally {
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threadLock.unlock()
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}
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}
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private fun withTryLock(condition: () -> Boolean, block: () -> Unit) {
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if (condition()) {
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if (threadLock.tryLock()) {
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try {
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if (condition()) {
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var l: FileLock? = null
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try {
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l = fileLock.tryLock()
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if (l != null) {
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if (condition()) {
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block()
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}
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}
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} catch (e: IOException) {
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NativeLog.e(TAG, "Failed to get file tryLock: $e")
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} finally {
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try {
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l?.release()
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} catch (e: IOException) {
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NativeLog.e(TAG, "Failed to release file tryLock: $e")
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}
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}
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}
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} finally {
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threadLock.unlock()
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}
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}
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}
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}
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private enum class Priority(val level: Int) {
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V(2),
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D(3),
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I(4),
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W(5),
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E(6),
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F(7)
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}
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}
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