1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.wifi.dpp; 18 19 import android.app.settings.SettingsEnums; 20 import android.content.ComponentName; 21 import android.content.Intent; 22 import android.content.pm.PackageManager; 23 import android.content.pm.ResolveInfo; 24 import android.content.res.Resources; 25 import android.graphics.Bitmap; 26 import android.graphics.drawable.Drawable; 27 import android.os.Bundle; 28 import android.provider.Settings; 29 import android.text.TextUtils; 30 import android.util.Log; 31 import android.view.LayoutInflater; 32 import android.view.Menu; 33 import android.view.MenuInflater; 34 import android.view.MenuItem; 35 import android.view.View; 36 import android.view.ViewGroup; 37 import android.widget.Button; 38 import android.widget.ImageView; 39 import android.widget.TextView; 40 41 import androidx.annotation.Nullable; 42 43 import com.android.internal.annotations.VisibleForTesting; 44 import com.android.internal.app.chooser.DisplayResolveInfo; 45 import com.android.internal.app.chooser.TargetInfo; 46 import com.android.settings.R; 47 import com.android.settingslib.qrcode.QrCodeGenerator; 48 49 import com.google.zxing.WriterException; 50 51 /** 52 * After sharing a saved Wi-Fi network, {@code WifiDppConfiguratorActivity} start with this fragment 53 * to generate a Wi-Fi DPP QR code for other device to initiate as an enrollee. 54 */ 55 public class WifiDppQrCodeGeneratorFragment extends WifiDppQrCodeBaseFragment { 56 private static final String TAG = "WifiDppQrCodeGeneratorFragment"; 57 58 private ImageView mQrCodeView; 59 private String mQrCode; 60 61 private static final String CHIP_LABEL_METADATA_KEY = "android.service.chooser.chip_label"; 62 private static final String CHIP_ICON_METADATA_KEY = "android.service.chooser.chip_icon"; 63 private static final String EXTRA_WIFI_CREDENTIALS_BUNDLE = 64 "android.intent.extra.WIFI_CREDENTIALS_BUNDLE"; 65 private static final String EXTRA_SSID = "android.intent.extra.SSID"; 66 private static final String EXTRA_PASSWORD = "android.intent.extra.PASSWORD"; 67 private static final String EXTRA_SECURITY_TYPE = "android.intent.extra.SECURITY_TYPE"; 68 private static final String EXTRA_HIDDEN_SSID = "android.intent.extra.HIDDEN_SSID"; 69 70 @Override getMetricsCategory()71 public int getMetricsCategory() { 72 return SettingsEnums.SETTINGS_WIFI_DPP_CONFIGURATOR; 73 } 74 75 @Override onActivityCreated(Bundle savedInstanceState)76 public void onActivityCreated(Bundle savedInstanceState) { 77 super.onActivityCreated(savedInstanceState); 78 79 // setTitle for TalkBack 80 final WifiNetworkConfig wifiNetworkConfig = getWifiNetworkConfigFromHostActivity(); 81 if (getActivity() != null) { 82 if (wifiNetworkConfig.isHotspot()) { 83 getActivity().setTitle(R.string.wifi_dpp_share_hotspot); 84 } else { 85 getActivity().setTitle(R.string.wifi_dpp_share_wifi); 86 } 87 } 88 } 89 90 @Override onCreateOptionsMenu(Menu menu, MenuInflater inflater)91 public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { 92 final MenuItem menuItem = menu.findItem(Menu.FIRST); 93 if (menuItem != null) { 94 menuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER); 95 } 96 97 super.onCreateOptionsMenu(menu, inflater); 98 } 99 100 @Override onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)101 public final View onCreateView(LayoutInflater inflater, ViewGroup container, 102 Bundle savedInstanceState) { 103 return inflater.inflate(R.layout.wifi_dpp_qrcode_generator_fragment, container, 104 /* attachToRoot */ false); 105 } 106 107 @Override onViewCreated(View view, Bundle savedInstanceState)108 public void onViewCreated(View view, Bundle savedInstanceState) { 109 super.onViewCreated(view, savedInstanceState); 110 111 mQrCodeView = view.findViewById(R.id.qrcode_view); 112 113 final WifiNetworkConfig wifiNetworkConfig = getWifiNetworkConfigFromHostActivity(); 114 if (wifiNetworkConfig.isHotspot()) { 115 setHeaderTitle(R.string.wifi_dpp_share_hotspot); 116 } else { 117 setHeaderTitle(R.string.wifi_dpp_share_wifi); 118 } 119 120 final String password = wifiNetworkConfig.getPreSharedKey(); 121 TextView passwordView = view.findViewById(R.id.password); 122 if (TextUtils.isEmpty(password)) { 123 mSummary.setText(getString( 124 R.string.wifi_dpp_scan_open_network_qr_code_with_another_device, 125 wifiNetworkConfig.getSsid())); 126 127 passwordView.setVisibility(View.GONE); 128 } else { 129 mSummary.setText(getString(R.string.wifi_dpp_scan_qr_code_with_another_device, 130 wifiNetworkConfig.getSsid())); 131 132 if (wifiNetworkConfig.isHotspot()) { 133 passwordView.setText(getString(R.string.wifi_dpp_hotspot_password, password)); 134 } else { 135 passwordView.setText(getString(R.string.wifi_dpp_wifi_password, password)); 136 } 137 } 138 139 final Intent intent = new Intent().setComponent(getNearbySharingComponent()); 140 addActionButton(view.findViewById(R.id.wifi_dpp_layout), createNearbyButton(intent, v -> { 141 intent.setAction(Intent.ACTION_SEND); 142 intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 143 intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK); 144 145 Bundle wifiCredentialBundle = new Bundle(); 146 147 String ssid = WifiDppUtils.removeFirstAndLastDoubleQuotes(wifiNetworkConfig.getSsid()); 148 149 String passwordExtra = wifiNetworkConfig.getPreSharedKey(); 150 String securityType = wifiNetworkConfig.getSecurity(); 151 boolean hiddenSsid = wifiNetworkConfig.getHiddenSsid(); 152 153 wifiCredentialBundle.putString(EXTRA_SSID, ssid); 154 wifiCredentialBundle.putString(EXTRA_PASSWORD, passwordExtra); 155 wifiCredentialBundle.putString(EXTRA_SECURITY_TYPE, securityType); 156 wifiCredentialBundle.putBoolean(EXTRA_HIDDEN_SSID, hiddenSsid); 157 158 intent.putExtra(EXTRA_WIFI_CREDENTIALS_BUNDLE, wifiCredentialBundle); 159 startActivity(intent); 160 })); 161 162 mQrCode = wifiNetworkConfig.getQrCode(); 163 setQrCode(); 164 } 165 166 @VisibleForTesting getNearbySharingComponent()167 ComponentName getNearbySharingComponent() { 168 String nearbyComponent = Settings.Secure.getString( 169 getContext().getContentResolver(), 170 Settings.Secure.NEARBY_SHARING_COMPONENT); 171 if (TextUtils.isEmpty(nearbyComponent)) { 172 nearbyComponent = getString( 173 com.android.internal.R.string.config_defaultNearbySharingComponent); 174 } 175 if (TextUtils.isEmpty(nearbyComponent)) { 176 return null; 177 } 178 return ComponentName.unflattenFromString(nearbyComponent); 179 } 180 getNearbySharingTarget(Intent originalIntent)181 private TargetInfo getNearbySharingTarget(Intent originalIntent) { 182 final ComponentName cn = getNearbySharingComponent(); 183 if (cn == null) return null; 184 185 final Intent resolveIntent = new Intent(originalIntent); 186 resolveIntent.setComponent(cn); 187 PackageManager pm = getContext().getPackageManager(); 188 final ResolveInfo resolveInfo = pm.resolveActivity( 189 resolveIntent, PackageManager.GET_META_DATA); 190 if (resolveInfo == null || resolveInfo.activityInfo == null) { 191 Log.e(TAG, "Device-specified nearby sharing component (" + cn 192 + ") not available"); 193 return null; 194 } 195 196 // Allow the nearby sharing component to provide a more appropriate icon and label 197 // for the chip. 198 CharSequence name = null; 199 Drawable icon = null; 200 final Bundle metaData = resolveInfo.activityInfo.metaData; 201 if (metaData != null) { 202 try { 203 final Resources pkgRes = pm.getResourcesForActivity(cn); 204 final int nameResId = metaData.getInt(CHIP_LABEL_METADATA_KEY); 205 name = pkgRes.getString(nameResId); 206 final int resId = metaData.getInt(CHIP_ICON_METADATA_KEY); 207 icon = pkgRes.getDrawable(resId); 208 } catch (Resources.NotFoundException ex) { 209 } catch (PackageManager.NameNotFoundException ex) { 210 } 211 } 212 if (TextUtils.isEmpty(name)) { 213 name = resolveInfo.loadLabel(pm); 214 } 215 if (icon == null) { 216 icon = resolveInfo.loadIcon(pm); 217 } 218 219 final DisplayResolveInfo dri = new DisplayResolveInfo( 220 originalIntent, resolveInfo, name, "", resolveIntent, null); 221 dri.setDisplayIcon(icon); 222 return dri; 223 } 224 createActionButton(Drawable icon, CharSequence title, View.OnClickListener r)225 private Button createActionButton(Drawable icon, CharSequence title, View.OnClickListener r) { 226 final Button b = (Button) LayoutInflater.from(getContext()).inflate( 227 R.layout.action_button, null); 228 if (icon != null) { 229 final int size = getResources().getDimensionPixelSize(R.dimen.action_button_icon_size); 230 icon.setBounds(0, 0, size, size); 231 b.setCompoundDrawablesRelative(icon, null, null, null); 232 } 233 b.setText(title); 234 b.setOnClickListener(r); 235 return b; 236 } 237 addActionButton(ViewGroup parent, Button b)238 private void addActionButton(ViewGroup parent, Button b) { 239 if (b == null) return; 240 final ViewGroup.MarginLayoutParams lp = new ViewGroup.MarginLayoutParams( 241 ViewGroup.LayoutParams.WRAP_CONTENT, 242 ViewGroup.LayoutParams.WRAP_CONTENT 243 ); 244 final int gap = getResources().getDimensionPixelSize( 245 com.android.internal.R.dimen.resolver_icon_margin) / 2; 246 lp.setMarginsRelative(gap, 0, gap, 0); 247 parent.addView(b, lp); 248 } 249 250 @VisibleForTesting 251 @Nullable createNearbyButton(Intent originalIntent, View.OnClickListener r)252 Button createNearbyButton(Intent originalIntent, View.OnClickListener r) { 253 final TargetInfo ti = getNearbySharingTarget(originalIntent); 254 if (ti == null) return null; 255 final Button button = createActionButton(ti.getDisplayIcon(getContext()), 256 ti.getDisplayLabel(), r); 257 button.setAllCaps(false); 258 return button; 259 } 260 setQrCode()261 private void setQrCode() { 262 try { 263 final int qrcodeSize = getContext().getResources().getDimensionPixelSize( 264 R.dimen.qrcode_size); 265 final Bitmap bmp = QrCodeGenerator.encodeQrCode(mQrCode, qrcodeSize); 266 mQrCodeView.setImageBitmap(bmp); 267 } catch (WriterException e) { 268 Log.e(TAG, "Error generating QR code bitmap " + e); 269 } 270 } 271 getWifiNetworkConfigFromHostActivity()272 private WifiNetworkConfig getWifiNetworkConfigFromHostActivity() { 273 final WifiNetworkConfig wifiNetworkConfig = ((WifiNetworkConfig.Retriever) getActivity()) 274 .getWifiNetworkConfig(); 275 if (!WifiNetworkConfig.isValidConfig(wifiNetworkConfig)) { 276 throw new IllegalStateException("Invalid Wi-Fi network for configuring"); 277 } 278 279 return wifiNetworkConfig; 280 } 281 282 @Override isFooterAvailable()283 protected boolean isFooterAvailable() { 284 return false; 285 } 286 } 287