Export debug information

mobile/src/main/java/be/mygod/vpnhotspot/SettingsPreferenceFragment.kt

@@ -2,6 +2,7 @@ package be.mygod.vpnhotspot
 
 import android.content.Intent
 import android.net.Uri
+import android.os.Build
 import android.os.Bundle
 import android.support.customtabs.CustomTabsIntent
 import android.support.v4.content.ContextCompat
@@ -10,6 +11,8 @@ import android.widget.Toast
 import be.mygod.vpnhotspot.net.Routing
 import com.takisoft.fix.support.v7.preference.PreferenceFragmentCompatDividers
 import java.io.IOException
+import java.io.PrintWriter
+import java.io.StringWriter
 
 class SettingsPreferenceFragment : PreferenceFragmentCompatDividers() {
     private val customTabsIntent by lazy {
@@ -24,16 +27,27 @@ class SettingsPreferenceFragment : PreferenceFragmentCompatDividers() {
             true
         }
         findPreference("misc.logcat").setOnPreferenceClickListener {
-            try {
+            fun handle(e: IOException): String {
-                val intent = Intent(Intent.ACTION_SEND)
-                        .setType("text/plain")
-                        .putExtra(Intent.EXTRA_TEXT, Runtime.getRuntime().exec(arrayOf("logcat", "-d"))
-                                .inputStream.bufferedReader().readText())
-                startActivity(Intent.createChooser(intent, getString(R.string.abc_shareactionprovider_share_with)))
-            } catch (e: IOException) {
                 Toast.makeText(context, e.message, Toast.LENGTH_SHORT).show()
-                e.printStackTrace()
+                val writer = StringWriter()
+                e.printStackTrace(PrintWriter(writer))
+                return writer.toString()
             }
+            val logcat = try {
+                Runtime.getRuntime().exec(arrayOf("logcat", "-d")).inputStream.bufferedReader().readText()
+            } catch (e: IOException) {
+                handle(e)
+            }
+            val debug = try {
+                Routing.dump()
+            } catch (e: IOException) {
+                handle(e)
+            }
+            val intent = Intent(Intent.ACTION_SEND)
+                    .setType("text/plain")
+                    .putExtra(Intent.EXTRA_TEXT,
+                            "${BuildConfig.VERSION_CODE} running on ${Build.VERSION.SDK_INT}\n$logcat\n$debug")
+            startActivity(Intent.createChooser(intent, getString(R.string.abc_shareactionprovider_share_with)))
             true
         }
         findPreference("misc.source").setOnPreferenceClickListener {

mobile/src/main/java/be/mygod/vpnhotspot/net/Routing.kt

@@ -4,6 +4,7 @@ import android.os.Build
 import be.mygod.vpnhotspot.App.Companion.app
 import be.mygod.vpnhotspot.R
 import be.mygod.vpnhotspot.debugLog
+import be.mygod.vpnhotspot.loggerSu
 import be.mygod.vpnhotspot.noisySu
 import java.io.IOException
 import java.net.Inet4Address
@@ -28,6 +29,17 @@ class Routing(val upstream: String?, val downstream: String, ownerAddress: InetA
                 "$IPTABLES -F vpnhotspot_fwd",
                 "$IPTABLES -X vpnhotspot_fwd",
                 "quiet while ip rule del priority 17900; do done")
+
+        fun dump() = loggerSu("""
+                |echo iptables
+                |iptables-save
+                |echo
+                |echo iptables -t nat
+                |iptables-save -t nat
+                |echo
+                |echo ip rule
+                |ip rule
+            """.trimMargin())
     }
 
     class InterfaceNotFoundException : IOException() {

mobile/src/main/res/values-zh-rCN/strings.xml

@@ -45,7 +45,7 @@
     <string name="settings_service_dns">备用 DNS 服务器[:端口]</string>
     <string name="settings_service_clean">清理/重新应用路由规则</string>
     <string name="settings_misc">杂项</string>
-    <string name="settings_misc_logcat">导出日志</string>
+    <string name="settings_misc_logcat">导出调试信息</string>
     <string name="settings_misc_logcat_summary">这种非常有用哇</string>
     <string name="settings_misc_source">查看 GitHub 上的源码</string>
     <string name="settings_misc_source_summary">Star, 提交 issues, 合作</string>
@@ -63,5 +63,5 @@
 
     <string name="exception_interface_not_found">错误：未找到下游接口</string>
     <string name="root_unavailable">似乎没有 root</string>
-    <string name="noisy_su_failure">发生异常，详情请查看日志。</string>
+    <string name="noisy_su_failure">发生异常，详情请查看调试信息。</string>
 </resources>

mobile/src/main/res/values/strings.xml

@@ -47,7 +47,7 @@
     <string name="settings_service_dns">Fallback DNS server[:port]</string>
     <string name="settings_service_clean">Clean/reapply routing rules</string>
     <string name="settings_misc">Misc</string>
-    <string name="settings_misc_logcat">Export logcat</string>
+    <string name="settings_misc_logcat">Export debug information</string>
     <string name="settings_misc_logcat_summary">Such useful very wow</string>
     <string name="settings_misc_source">View on GitHub</string>
     <string name="settings_misc_source_summary">Star, submit issues and contribute</string>
@@ -67,5 +67,5 @@
 
     <string name="exception_interface_not_found">Fatal: Downstream interface not found</string>
     <string name="root_unavailable">Root unavailable</string>
-    <string name="noisy_su_failure">Something went wrong, please check logcat.</string>
+    <string name="noisy_su_failure">Something went wrong, please check the debug information.</string>
 </resources>