brianhansonxyz/vpnhotspotmod
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Check if Wi-Fi direct is available

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This commit is contained in:
Mygod
2018-01-04 17:53:36 +08:00
parent bd25cdab9b
commit 144911e641
3 changed files with 34 additions and 8 deletions
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1
mobile/src/main/AndroidManifest.xml
View File

@@ -2,6 +2,7 @@
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="be.mygod.vpnhotspot">
<uses-feature android:name="android.hardware.wifi.direct" android:required="true"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>
<uses-permission android:name="android.permission.INTERNET"/>

22
mobile/src/main/java/be/mygod/vpnhotspot/HotspotService.kt
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@@ -17,6 +17,7 @@ import android.util.Log
import android.widget.Toast
import be.mygod.vpnhotspot.App.Companion.app
import java.net.NetworkInterface
import java.util.regex.Pattern
class HotspotService : Service(), WifiP2pManager.ChannelListener {
companion object {
@@ -24,6 +25,18 @@ class HotspotService : Service(), WifiP2pManager.ChannelListener {
const val STATUS_CHANGED = "be.mygod.vpnhotspot.HotspotService.STATUS_CHANGED"
const val KEY_UPSTREAM = "service.upstream"
private const val TAG = "HotspotService"
/**
* Matches the output of dumpsys wifip2p. This part is available since Android 4.2.
*
* Related sources:
* https://android.googlesource.com/platform/frameworks/base/+/f0afe4144d09aa9b980cffd444911ab118fa9cbe%5E%21/wifi/java/android/net/wifi/p2p/WifiP2pService.java
* https://android.googlesource.com/platform/frameworks/opt/net/wifi/+/a8d5e40/service/java/com/android/server/wifi/p2p/WifiP2pServiceImpl.java#639
*
* https://android.googlesource.com/platform/frameworks/base.git/+/android-5.0.0_r1/core/java/android/net/NetworkInfo.java#433
* https://android.googlesource.com/platform/frameworks/base.git/+/220871a/core/java/android/net/NetworkInfo.java#415
*/
private val patternNetworkInfo = "^mNetworkInfo .* (isA|a)vailable: (true|false)".toPattern(Pattern.MULTILINE)
}
enum class Status {
@@ -115,6 +128,15 @@ class HotspotService : Service(), WifiP2pManager.ChannelListener {
override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
if (status != Status.IDLE) return START_NOT_STICKY
status = Status.STARTING
val matcher = patternNetworkInfo.matcher(loggerSu("dumpsys ${Context.WIFI_P2P_SERVICE}"))
if (!matcher.find()) {
startFailure("Root unavailable")
return START_NOT_STICKY
}
if (matcher.group(2) != "true") {
startFailure("Wi-Fi direct unavailable")
return START_NOT_STICKY
}
if (!receiverRegistered) {
registerReceiver(receiver, intentFilter(WifiP2pManager.WIFI_P2P_STATE_CHANGED_ACTION,
WifiP2pManager.WIFI_P2P_CONNECTION_CHANGED_ACTION))

19
mobile/src/main/java/be/mygod/vpnhotspot/Utils.kt
View File

@@ -24,18 +24,21 @@ fun Bundle.put(key: String, map: Array<String>): Bundle {
const val NOISYSU_TAG = "NoisySU"
const val NOISYSU_SUFFIX = "SUCCESS\n"
fun noisySu(vararg commands: String): Boolean {
val process = ProcessBuilder("su", "-c", """function noisy() { "$@" || echo "$@" exited with $?; }
${commands.joinToString("\n") { if (it.startsWith("while ")) it else "noisy $it" }}
echo $NOISYSU_SUFFIX""")
fun loggerSu(vararg commands: String): String {
val process = ProcessBuilder("su", "-c", commands.joinToString("\n"))
.redirectErrorStream(true)
.start()
process.waitFor()
var out = process.inputStream.bufferedReader().use { it.readLine() }
val err = process.errorStream.bufferedReader().use { it.readText() }
if (!err.isBlank()) Log.e(NOISYSU_TAG, err)
return process.inputStream.bufferedReader().use { it.readText() }
}
fun noisySu(vararg commands: String): Boolean {
var out = loggerSu("""function noisy() { "$@" || echo "$@" exited with $?; }
${commands.joinToString("\n") { if (it.startsWith("while ")) it else "noisy $it" }}
echo $NOISYSU_SUFFIX""")
val result = out != NOISYSU_SUFFIX
out = out.removeSuffix(NOISYSU_SUFFIX)
if (!out.isNullOrBlank()) Log.i(NOISYSU_TAG, out)
val err = process.errorStream.bufferedReader().use { it.readLine() }
if (!err.isNullOrBlank()) Log.e(NOISYSU_TAG, err)
if (!out.isBlank()) Log.i(NOISYSU_TAG, out)
return result
}