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/*
* Tinc App, an Android binding and user interface for the tinc mesh VPN daemon
* Copyright (C) 2017-2018 Pacien TRAN-GIRARD
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package org.pacien.tincapp.activities.common
import android.support.v7.app.AlertDialog
import org.apache.commons.io.input.ReversedLinesFileReader
import org.pacien.tincapp.R
import org.pacien.tincapp.activities.BaseActivity
import org.pacien.tincapp.context.App
import org.pacien.tincapp.context.AppPaths
import org.pacien.tincapp.context.CrashRecorder
import java.io.File
/**
* @author pacien
*/
class RecentCrashHandler(private val parentActivity: BaseActivity) {
private val resources by lazy { parentActivity.resources!! }
private val maxLines = 1000
fun handleRecentCrash() {
if (!CrashRecorder.hasPreviouslyCrashed()) return
CrashRecorder.dismissPreviousCrash()
AlertDialog.Builder(parentActivity)
.setTitle(R.string.crash_modal_title)
.setMessage(makeMessage())
.setNeutralButton(R.string.crash_modal_action_send_report) { _, _ -> sendReportMail() }
.setPositiveButton(R.string.generic_action_close) { _, _ -> Unit }
.show()
}
private fun makeMessage() =
listOf(
resources.getString(R.string.crash_modal_message),
resources.getString(R.string.crash_modal_crash_logged, AppPaths.appLogFile().absolutePath)
).joinToString("\n\n")
private fun sendReportMail() =
App.sendMail(
resources.getString(R.string.crash_modal_dev_email),
listOf(R.string.app_name, R.string.crash_modal_title).joinToString(" / ", transform = resources::getString),
AppPaths.appLogFile().let { if (it.exists()) it.readLastLines(maxLines) else "" }
)
private fun File.readLastLines(n: Int): String {
val reader = ReversedLinesFileReader(this, Charsets.UTF_8)
val lastLines = generateSequence(reader::readLine)
.takeWhile { line: String? -> line != null }
.take(n)
.toList()
.asReversed()
return lastLines.joinToString("\n")
}
}
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