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.annotation.Nullable; 20 import android.app.settings.SettingsEnums; 21 import android.content.ComponentName; 22 import android.content.Intent; 23 import android.content.pm.PackageManager; 24 import android.content.pm.ResolveInfo; 25 import android.content.res.Resources; 26 import android.graphics.Bitmap; 27 import android.graphics.drawable.Drawable; 28 import android.os.Bundle; 29 import android.provider.Settings; 30 import android.text.TextUtils; 31 import android.util.Log; 32 import android.view.LayoutInflater; 33 import android.view.Menu; 34 import android.view.MenuInflater; 35 import android.view.MenuItem; 36 import android.view.View; 37 import android.view.ViewGroup; 38 import android.widget.Button; 39 import android.widget.ImageView; 40 import android.widget.TextView; 41 42 import com.android.internal.annotations.VisibleForTesting; 43 import com.android.internal.app.chooser.DisplayResolveInfo; 44 import com.android.internal.app.chooser.TargetInfo; 45 import com.android.settings.R; 46 import com.android.settings.wifi.qrcode.QrCodeGenerator; 47 48 import com.google.zxing.WriterException; 49 50 /** 51 * After sharing a saved Wi-Fi network, {@code WifiDppConfiguratorActivity} start with this fragment 52 * to generate a Wi-Fi DPP QR code for other device to initiate as an enrollee. 53 */ 54 public class WifiDppQrCodeGeneratorFragment extends WifiDppQrCodeBaseFragment { 55 private static final String TAG = "WifiDppQrCodeGeneratorFragment"; 56 57 private ImageView mQrCodeView; 58 private String mQrCode; 59 60 private static final String CHIP_LABEL_METADATA_KEY = "android.service.chooser.chip_label"; 61 private static final String CHIP_ICON_METADATA_KEY = "android.service.chooser.chip_icon"; 62 private static final String EXTRA_WIFI_CREDENTIALS_BUNDLE = 63 "android.intent.extra.WIFI_CREDENTIALS_BUNDLE"; 64 private static final String EXTRA_SSID = "android.intent.extra.SSID"; 65 private static final String EXTRA_PASSWORD = "android.intent.extra.PASSWORD"; 66 private static final String EXTRA_SECURITY_TYPE = "android.intent.extra.SECURITY_TYPE"; 67 private static final String EXTRA_HIDDEN_SSID = "android.intent.extra.HIDDEN_SSID"; 68 69 @Override getMetricsCategory()70 public int getMetricsCategory() { 71 return SettingsEnums.SETTINGS_WIFI_DPP_CONFIGURATOR; 72 } 73 74 @Override onActivityCreated(Bundle savedInstanceState)75 public void onActivityCreated(Bundle savedInstanceState) { 76 super.onActivityCreated(savedInstanceState); 77 78 // setTitle for TalkBack 79 final WifiNetworkConfig wifiNetworkConfig = getWifiNetworkConfigFromHostActivity(); 80 if (getActivity() != null) { 81 if (wifiNetworkConfig.isHotspot()) { 82 getActivity().setTitle(R.string.wifi_dpp_share_hotspot); 83 } else { 84 getActivity().setTitle(R.string.wifi_dpp_share_wifi); 85 } 86 } 87 } 88 89 @Override onCreateOptionsMenu(Menu menu, MenuInflater inflater)90 public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { 91 final MenuItem menuItem = menu.findItem(Menu.FIRST); 92 if (menuItem != null) { 93 menuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER); 94 } 95 96 super.onCreateOptionsMenu(menu, inflater); 97 } 98 99 @Override onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)100 public final View onCreateView(LayoutInflater inflater, ViewGroup container, 101 Bundle savedInstanceState) { 102 return inflater.inflate(R.layout.wifi_dpp_qrcode_generator_fragment, container, 103 /* attachToRoot */ false); 104 } 105 106 @Override onViewCreated(View view, Bundle savedInstanceState)107 public void onViewCreated(View view, Bundle savedInstanceState) { 108 super.onViewCreated(view, savedInstanceState); 109 110 mQrCodeView = view.findViewById(R.id.qrcode_view); 111 112 final WifiNetworkConfig wifiNetworkConfig = getWifiNetworkConfigFromHostActivity(); 113 if (wifiNetworkConfig.isHotspot()) { 114 setHeaderTitle(R.string.wifi_dpp_share_hotspot); 115 } else { 116 setHeaderTitle(R.string.wifi_dpp_share_wifi); 117 } 118 119 final String password = wifiNetworkConfig.getPreSharedKey(); 120 TextView passwordView = view.findViewById(R.id.password); 121 if (TextUtils.isEmpty(password)) { 122 mSummary.setText(getString( 123 R.string.wifi_dpp_scan_open_network_qr_code_with_another_device, 124 wifiNetworkConfig.getSsid())); 125 126 passwordView.setVisibility(View.GONE); 127 } else { 128 mSummary.setText(getString(R.string.wifi_dpp_scan_qr_code_with_another_device, 129 wifiNetworkConfig.getSsid())); 130 131 if (wifiNetworkConfig.isHotspot()) { 132 passwordView.setText(getString(R.string.wifi_dpp_hotspot_password, password)); 133 } else { 134 passwordView.setText(getString(R.string.wifi_dpp_wifi_password, password)); 135 } 136 } 137 138 final Intent intent = new Intent().setComponent(getNearbySharingComponent()); 139 addActionButton(view.findViewById(R.id.wifi_dpp_layout), createNearbyButton(intent, v -> { 140 intent.setAction(Intent.ACTION_SEND); 141 intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 142 intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK); 143 144 Bundle wifiCredentialBundle = new Bundle(); 145 146 String ssid = WifiDppUtils.removeFirstAndLastDoubleQuotes(wifiNetworkConfig.getSsid()); 147 148 String passwordExtra = wifiNetworkConfig.getPreSharedKey(); 149 String securityType = wifiNetworkConfig.getSecurity(); 150 boolean hiddenSsid = wifiNetworkConfig.getHiddenSsid(); 151 152 wifiCredentialBundle.putString(EXTRA_SSID, ssid); 153 wifiCredentialBundle.putString(EXTRA_PASSWORD, passwordExtra); 154 wifiCredentialBundle.putString(EXTRA_SECURITY_TYPE, securityType); 155 wifiCredentialBundle.putBoolean(EXTRA_HIDDEN_SSID, hiddenSsid); 156 157 intent.putExtra(EXTRA_WIFI_CREDENTIALS_BUNDLE, wifiCredentialBundle); 158 startActivity(intent); 159 })); 160 161 mQrCode = wifiNetworkConfig.getQrCode(); 162 setQrCode(); 163 } 164 165 @VisibleForTesting getNearbySharingComponent()166 ComponentName getNearbySharingComponent() { 167 String nearbyComponent = Settings.Secure.getString( 168 getContext().getContentResolver(), 169 Settings.Secure.NEARBY_SHARING_COMPONENT); 170 if (TextUtils.isEmpty(nearbyComponent)) { 171 nearbyComponent = getString( 172 com.android.internal.R.string.config_defaultNearbySharingComponent); 173 } 174 if (TextUtils.isEmpty(nearbyComponent)) { 175 return null; 176 } 177 return ComponentName.unflattenFromString(nearbyComponent); 178 } 179 getNearbySharingTarget(Intent originalIntent)180 private TargetInfo getNearbySharingTarget(Intent originalIntent) { 181 final ComponentName cn = getNearbySharingComponent(); 182 if (cn == null) return null; 183 184 final Intent resolveIntent = new Intent(originalIntent); 185 resolveIntent.setComponent(cn); 186 PackageManager pm = getContext().getPackageManager(); 187 final ResolveInfo resolveInfo = pm.resolveActivity( 188 resolveIntent, PackageManager.GET_META_DATA); 189 if (resolveInfo == null || resolveInfo.activityInfo == null) { 190 Log.e(TAG, "Device-specified nearby sharing component (" + cn 191 + ") not available"); 192 return null; 193 } 194 195 // Allow the nearby sharing component to provide a more appropriate icon and label 196 // for the chip. 197 CharSequence name = null; 198 Drawable icon = null; 199 final Bundle metaData = resolveInfo.activityInfo.metaData; 200 if (metaData != null) { 201 try { 202 final Resources pkgRes = pm.getResourcesForActivity(cn); 203 final int nameResId = metaData.getInt(CHIP_LABEL_METADATA_KEY); 204 name = pkgRes.getString(nameResId); 205 final int resId = metaData.getInt(CHIP_ICON_METADATA_KEY); 206 icon = pkgRes.getDrawable(resId); 207 } catch (Resources.NotFoundException ex) { 208 } catch (PackageManager.NameNotFoundException ex) { 209 } 210 } 211 if (TextUtils.isEmpty(name)) { 212 name = resolveInfo.loadLabel(pm); 213 } 214 if (icon == null) { 215 icon = resolveInfo.loadIcon(pm); 216 } 217 218 final DisplayResolveInfo dri = new DisplayResolveInfo( 219 originalIntent, resolveInfo, name, "", resolveIntent, null); 220 dri.setDisplayIcon(icon); 221 return dri; 222 } 223 createActionButton(Drawable icon, CharSequence title, View.OnClickListener r)224 private Button createActionButton(Drawable icon, CharSequence title, View.OnClickListener r) { 225 final Button b = (Button) LayoutInflater.from(getContext()).inflate( 226 com.android.internal.R.layout.chooser_action_button, null); 227 if (icon != null) { 228 final int size = getResources() 229 .getDimensionPixelSize( 230 com.android.internal.R.dimen.chooser_action_button_icon_size); 231 icon.setBounds(0, 0, size, size); 232 b.setCompoundDrawablesRelative(icon, null, null, null); 233 } 234 b.setText(title); 235 b.setOnClickListener(r); 236 return b; 237 } 238 addActionButton(ViewGroup parent, Button b)239 private void addActionButton(ViewGroup parent, Button b) { 240 if (b == null) return; 241 final ViewGroup.MarginLayoutParams lp = new ViewGroup.MarginLayoutParams( 242 ViewGroup.LayoutParams.WRAP_CONTENT, 243 ViewGroup.LayoutParams.WRAP_CONTENT 244 ); 245 final int gap = getResources().getDimensionPixelSize( 246 com.android.internal.R.dimen.resolver_icon_margin) / 2; 247 lp.setMarginsRelative(gap, 0, gap, 0); 248 parent.addView(b, lp); 249 } 250 251 @VisibleForTesting 252 @Nullable createNearbyButton(Intent originalIntent, View.OnClickListener r)253 Button createNearbyButton(Intent originalIntent, View.OnClickListener r) { 254 final TargetInfo ti = getNearbySharingTarget(originalIntent); 255 if (ti == null) return null; 256 final Button button = createActionButton(ti.getDisplayIcon(getContext()), 257 ti.getDisplayLabel(), r); 258 button.setAllCaps(false); 259 return button; 260 } 261 setQrCode()262 private void setQrCode() { 263 try { 264 final int qrcodeSize = getContext().getResources().getDimensionPixelSize( 265 R.dimen.qrcode_size); 266 final Bitmap bmp = QrCodeGenerator.encodeQrCode(mQrCode, qrcodeSize); 267 mQrCodeView.setImageBitmap(bmp); 268 } catch (WriterException e) { 269 Log.e(TAG, "Error generating QR code bitmap " + e); 270 } 271 } 272 getWifiNetworkConfigFromHostActivity()273 private WifiNetworkConfig getWifiNetworkConfigFromHostActivity() { 274 final WifiNetworkConfig wifiNetworkConfig = ((WifiNetworkConfig.Retriever) getActivity()) 275 .getWifiNetworkConfig(); 276 if (!WifiNetworkConfig.isValidConfig(wifiNetworkConfig)) { 277 throw new IllegalStateException("Invalid Wi-Fi network for configuring"); 278 } 279 280 return wifiNetworkConfig; 281 } 282 283 @Override isFooterAvailable()284 protected boolean isFooterAvailable() { 285 return false; 286 } 287 } 288