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authorTorsten Grote <t@grobox.de>2020-07-02 16:09:07 -0300
committerTorsten Grote <t@grobox.de>2020-07-02 16:09:07 -0300
commit9400d765f07f57adb775518c5b66d8001893a7c4 (patch)
tree83aeea29a62c374fa15619702ce9d4ab78b2a90f /wallet
parent2b6cfa75123e70ee90aed744d21240da6c944555 (diff)
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[wallet] Try to connect to open Wi-Fi
if included in fragment of scanned/opened taler:// URI
Diffstat (limited to 'wallet')
-rw-r--r--wallet/src/main/AndroidManifest.xml3
-rw-r--r--wallet/src/main/java/net/taler/wallet/MainActivity.kt6
-rw-r--r--wallet/src/main/java/net/taler/wallet/Utils.kt63
-rw-r--r--wallet/src/main/res/values/strings.xml2
4 files changed, 74 insertions, 0 deletions
diff --git a/wallet/src/main/AndroidManifest.xml b/wallet/src/main/AndroidManifest.xml
index 5d86a77..e2a79da 100644
--- a/wallet/src/main/AndroidManifest.xml
+++ b/wallet/src/main/AndroidManifest.xml
@@ -18,6 +18,9 @@
xmlns:tools="http://schemas.android.com/tools"
package="net.taler.wallet">
+ <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
+ <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+ <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.NFC" />
<uses-feature
diff --git a/wallet/src/main/java/net/taler/wallet/MainActivity.kt b/wallet/src/main/java/net/taler/wallet/MainActivity.kt
index 2eeb4fd..786e40e 100644
--- a/wallet/src/main/java/net/taler/wallet/MainActivity.kt
+++ b/wallet/src/main/java/net/taler/wallet/MainActivity.kt
@@ -22,6 +22,7 @@ import android.content.Context
import android.content.Intent
import android.content.Intent.ACTION_VIEW
import android.content.IntentFilter
+import android.net.Uri
import android.os.Bundle
import android.util.Log
import android.view.MenuItem
@@ -48,6 +49,7 @@ import com.google.zxing.integration.android.IntentIntegrator
import com.google.zxing.integration.android.IntentIntegrator.parseActivityResult
import kotlinx.android.synthetic.main.activity_main.*
import kotlinx.android.synthetic.main.app_bar_main.*
+import net.taler.common.isOnline
import net.taler.wallet.BuildConfig.VERSION_CODE
import net.taler.wallet.BuildConfig.VERSION_NAME
import net.taler.wallet.HostCardEmulatorService.Companion.HTTP_TUNNEL_RESPONSE
@@ -144,6 +146,10 @@ class MainActivity : AppCompatActivity(), OnNavigationItemSelectedListener,
}
private fun handleTalerUri(url: String, from: String) {
+ val uri = Uri.parse(url)
+ if (uri.fragment != null && !isOnline()) {
+ connectToWifi(this, uri.fragment!!)
+ }
when {
url.toLowerCase(ROOT).startsWith("taler://pay/") -> {
Log.v(TAG, "navigating!")
diff --git a/wallet/src/main/java/net/taler/wallet/Utils.kt b/wallet/src/main/java/net/taler/wallet/Utils.kt
index b41a202..e299245 100644
--- a/wallet/src/main/java/net/taler/wallet/Utils.kt
+++ b/wallet/src/main/java/net/taler/wallet/Utils.kt
@@ -17,6 +17,18 @@
package net.taler.wallet
import android.app.Activity
+import android.content.Context
+import android.net.ConnectivityManager
+import android.net.ConnectivityManager.NetworkCallback
+import android.net.NetworkCapabilities
+import android.net.NetworkRequest
+import android.net.wifi.WifiConfiguration
+import android.net.wifi.WifiManager
+import android.net.wifi.WifiNetworkSpecifier
+import android.os.Build.VERSION.SDK_INT
+import android.widget.Toast
+import android.widget.Toast.LENGTH_LONG
+import androidx.annotation.RequiresApi
import com.google.zxing.integration.android.IntentIntegrator
fun scanQrCode(activity: Activity) {
@@ -27,6 +39,57 @@ fun scanQrCode(activity: Activity) {
}.initiateScan(listOf(IntentIntegrator.QR_CODE))
}
+fun connectToWifi(context: Context, ssid: String) {
+ if (SDK_INT >= 29) {
+ connectToWifi29(context, ssid)
+ } else {
+ connectToWifiDeprecated(context, ssid)
+ }
+}
+
+@RequiresApi(29)
+private fun connectToWifi29(context: Context, ssid: String) {
+ val wifiManager = context.getSystemService(WifiManager::class.java)
+ if (wifiManager?.isWifiEnabled == false) {
+ // we are not allowed to enable the WiFi anymore, so show at least a hint about it
+ Toast.makeText(context, R.string.wifi_disabled_error, LENGTH_LONG).show()
+ }
+
+ val specifier = WifiNetworkSpecifier.Builder()
+ .setSsid(ssid)
+ .build()
+ val request = NetworkRequest.Builder()
+ .addTransportType(NetworkCapabilities.TRANSPORT_WIFI)
+ .setNetworkSpecifier(specifier)
+ .build()
+ val connectivityManager = context.getSystemService(ConnectivityManager::class.java)
+ connectivityManager?.requestNetwork(request, NetworkCallback())
+}
+
+@Suppress("DEPRECATION")
+private fun connectToWifiDeprecated(context: Context, ssid: String) {
+ context.getSystemService(WifiManager::class.java)?.apply {
+ if (!isWifiEnabled) {
+ val enabledResult = setWifiEnabled(true)
+ while (enabledResult && !isWifiEnabled) Thread.sleep(25)
+ }
+ val wifiConfig = WifiConfiguration().apply {
+ SSID = "\"$ssid\""
+ allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE)
+ }
+ addNetwork(wifiConfig).let { netId ->
+ if (netId == -1) {
+ val str = context.getString(R.string.wifi_connect_error, ssid)
+ Toast.makeText(context, str, LENGTH_LONG).show()
+ } else {
+ disconnect()
+ enableNetwork(netId, true)
+ reconnect()
+ }
+ }
+ }
+}
+
fun cleanExchange(exchange: String) = exchange.let {
if (it.startsWith("https://")) it.substring(8) else it
}.trimEnd('/')
diff --git a/wallet/src/main/res/values/strings.xml b/wallet/src/main/res/values/strings.xml
index c856345..fec5948 100644
--- a/wallet/src/main/res/values/strings.xml
+++ b/wallet/src/main/res/values/strings.xml
@@ -155,5 +155,7 @@ GNU Taler is immune against many types of fraud, such as phishing of credit card
<string name="refund_success">Refund received</string>
<string name="tip_title">Tip</string>
+ <string name="wifi_disabled_error">Turn on Wi-Fi to get free Wi-Fi</string>
+ <string name="wifi_connect_error">Could not connect to free Wi-Fi: %s</string>
</resources>