1/* 2 * Copyright (C) 2010 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 18package com.android.browser; 19 20import android.app.Activity; 21import android.app.SearchManager; 22import android.content.ContentResolver; 23import android.content.Context; 24import android.content.Intent; 25import android.net.Uri; 26import android.nfc.NfcAdapter; 27import android.os.AsyncTask; 28import android.os.Bundle; 29import android.provider.Browser; 30import android.provider.MediaStore; 31import android.text.TextUtils; 32import android.util.Patterns; 33 34import com.android.browser.UI.ComboViews; 35import com.android.browser.search.SearchEngine; 36import com.android.common.Search; 37 38import java.util.HashMap; 39import java.util.Iterator; 40import java.util.Map; 41 42/** 43 * Handle all browser related intents 44 */ 45public class IntentHandler { 46 47 // "source" parameter for Google search suggested by the browser 48 final static String GOOGLE_SEARCH_SOURCE_SUGGEST = "browser-suggest"; 49 // "source" parameter for Google search from unknown source 50 final static String GOOGLE_SEARCH_SOURCE_UNKNOWN = "unknown"; 51 52 /* package */ static final UrlData EMPTY_URL_DATA = new UrlData(null); 53 54 private Activity mActivity; 55 private Controller mController; 56 private TabControl mTabControl; 57 private BrowserSettings mSettings; 58 59 public IntentHandler(Activity browser, Controller controller) { 60 mActivity = browser; 61 mController = controller; 62 mTabControl = mController.getTabControl(); 63 mSettings = controller.getSettings(); 64 } 65 66 void onNewIntent(Intent intent) { 67 Tab current = mTabControl.getCurrentTab(); 68 // When a tab is closed on exit, the current tab index is set to -1. 69 // Reset before proceed as Browser requires the current tab to be set. 70 if (current == null) { 71 // Try to reset the tab in case the index was incorrect. 72 current = mTabControl.getTab(0); 73 if (current == null) { 74 // No tabs at all so just ignore this intent. 75 return; 76 } 77 mController.setActiveTab(current); 78 } 79 final String action = intent.getAction(); 80 final int flags = intent.getFlags(); 81 if (Intent.ACTION_MAIN.equals(action) || 82 (flags & Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY) != 0) { 83 // just resume the browser 84 return; 85 } 86 if (BrowserActivity.ACTION_SHOW_BOOKMARKS.equals(action)) { 87 mController.bookmarksOrHistoryPicker(ComboViews.Bookmarks); 88 return; 89 } 90 91 // In case the SearchDialog is open. 92 ((SearchManager) mActivity.getSystemService(Context.SEARCH_SERVICE)) 93 .stopSearch(); 94 if (Intent.ACTION_VIEW.equals(action) 95 || NfcAdapter.ACTION_NDEF_DISCOVERED.equals(action) 96 || Intent.ACTION_SEARCH.equals(action) 97 || MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action) 98 || Intent.ACTION_WEB_SEARCH.equals(action)) { 99 // If this was a search request (e.g. search query directly typed into the address bar), 100 // pass it on to the default web search provider. 101 if (handleWebSearchIntent(mActivity, mController, intent)) { 102 return; 103 } 104 105 UrlData urlData = getUrlDataFromIntent(intent); 106 if (urlData.isEmpty()) { 107 urlData = new UrlData(mSettings.getHomePage()); 108 } 109 110 if (intent.getBooleanExtra(Browser.EXTRA_CREATE_NEW_TAB, false) 111 || urlData.isPreloaded()) { 112 Tab t = mController.openTab(urlData); 113 return; 114 } 115 /* 116 * TODO: Don't allow javascript URIs 117 * 0) If this is a javascript: URI, *always* open a new tab 118 * 1) If the URL is already opened, switch to that tab 119 * 2-phone) Reuse tab with same appId 120 * 2-tablet) Open new tab 121 */ 122 final String appId = intent 123 .getStringExtra(Browser.EXTRA_APPLICATION_ID); 124 if (!TextUtils.isEmpty(urlData.mUrl) && 125 urlData.mUrl.startsWith("javascript:")) { 126 // Always open javascript: URIs in new tabs 127 mController.openTab(urlData); 128 return; 129 } 130 if (Intent.ACTION_VIEW.equals(action) 131 && (appId != null) 132 && appId.startsWith(mActivity.getPackageName())) { 133 Tab appTab = mTabControl.getTabFromAppId(appId); 134 if ((appTab != null) && (appTab == mController.getCurrentTab())) { 135 mController.switchToTab(appTab); 136 mController.loadUrlDataIn(appTab, urlData); 137 return; 138 } 139 } 140 if (Intent.ACTION_VIEW.equals(action) 141 && !mActivity.getPackageName().equals(appId)) { 142 if (!BrowserActivity.isTablet(mActivity) 143 && !mSettings.allowAppTabs()) { 144 Tab appTab = mTabControl.getTabFromAppId(appId); 145 if (appTab != null) { 146 mController.reuseTab(appTab, urlData); 147 return; 148 } 149 } 150 // No matching application tab, try to find a regular tab 151 // with a matching url. 152 Tab appTab = mTabControl.findTabWithUrl(urlData.mUrl); 153 if (appTab != null) { 154 // Transfer ownership 155 appTab.setAppId(appId); 156 if (current != appTab) { 157 mController.switchToTab(appTab); 158 } 159 // Otherwise, we are already viewing the correct tab. 160 } else { 161 // if FLAG_ACTIVITY_BROUGHT_TO_FRONT flag is on, the url 162 // will be opened in a new tab unless we have reached 163 // MAX_TABS. Then the url will be opened in the current 164 // tab. If a new tab is created, it will have "true" for 165 // exit on close. 166 Tab tab = mController.openTab(urlData); 167 if (tab != null) { 168 tab.setAppId(appId); 169 if ((intent.getFlags() & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT) != 0) { 170 tab.setCloseOnBack(true); 171 } 172 } 173 } 174 } else { 175 // Get rid of the subwindow if it exists 176 mController.dismissSubWindow(current); 177 // If the current Tab is being used as an application tab, 178 // remove the association, since the new Intent means that it is 179 // no longer associated with that application. 180 current.setAppId(null); 181 mController.loadUrlDataIn(current, urlData); 182 } 183 } 184 } 185 186 protected static UrlData getUrlDataFromIntent(Intent intent) { 187 String url = ""; 188 Map<String, String> headers = null; 189 PreloadedTabControl preloaded = null; 190 String preloadedSearchBoxQuery = null; 191 if (intent != null 192 && (intent.getFlags() & Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY) == 0) { 193 final String action = intent.getAction(); 194 if (Intent.ACTION_VIEW.equals(action) || 195 NfcAdapter.ACTION_NDEF_DISCOVERED.equals(action)) { 196 url = UrlUtils.smartUrlFilter(intent.getData()); 197 if (url != null && url.startsWith("http")) { 198 final Bundle pairs = intent 199 .getBundleExtra(Browser.EXTRA_HEADERS); 200 if (pairs != null && !pairs.isEmpty()) { 201 Iterator<String> iter = pairs.keySet().iterator(); 202 headers = new HashMap<String, String>(); 203 while (iter.hasNext()) { 204 String key = iter.next(); 205 headers.put(key, pairs.getString(key)); 206 } 207 } 208 } 209 if (intent.hasExtra(PreloadRequestReceiver.EXTRA_PRELOAD_ID)) { 210 String id = intent.getStringExtra(PreloadRequestReceiver.EXTRA_PRELOAD_ID); 211 preloadedSearchBoxQuery = intent.getStringExtra( 212 PreloadRequestReceiver.EXTRA_SEARCHBOX_SETQUERY); 213 preloaded = Preloader.getInstance().getPreloadedTab(id); 214 } 215 } else if (Intent.ACTION_SEARCH.equals(action) 216 || MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action) 217 || Intent.ACTION_WEB_SEARCH.equals(action)) { 218 url = intent.getStringExtra(SearchManager.QUERY); 219 if (url != null) { 220 // In general, we shouldn't modify URL from Intent. 221 // But currently, we get the user-typed URL from search box as well. 222 url = UrlUtils.fixUrl(url); 223 url = UrlUtils.smartUrlFilter(url); 224 String searchSource = "&source=android-" + GOOGLE_SEARCH_SOURCE_SUGGEST + "&"; 225 if (url.contains(searchSource)) { 226 String source = null; 227 final Bundle appData = intent.getBundleExtra(SearchManager.APP_DATA); 228 if (appData != null) { 229 source = appData.getString(Search.SOURCE); 230 } 231 if (TextUtils.isEmpty(source)) { 232 source = GOOGLE_SEARCH_SOURCE_UNKNOWN; 233 } 234 url = url.replace(searchSource, "&source=android-"+source+"&"); 235 } 236 } 237 } 238 } 239 return new UrlData(url, headers, intent, preloaded, preloadedSearchBoxQuery); 240 } 241 242 /** 243 * Launches the default web search activity with the query parameters if the given intent's data 244 * are identified as plain search terms and not URLs/shortcuts. 245 * @return true if the intent was handled and web search activity was launched, false if not. 246 */ 247 static boolean handleWebSearchIntent(Activity activity, 248 Controller controller, Intent intent) { 249 if (intent == null) return false; 250 251 String url = null; 252 final String action = intent.getAction(); 253 if (Intent.ACTION_VIEW.equals(action)) { 254 Uri data = intent.getData(); 255 if (data != null) url = data.toString(); 256 } else if (Intent.ACTION_SEARCH.equals(action) 257 || MediaStore.INTENT_ACTION_MEDIA_SEARCH.equals(action) 258 || Intent.ACTION_WEB_SEARCH.equals(action)) { 259 url = intent.getStringExtra(SearchManager.QUERY); 260 } 261 return handleWebSearchRequest(activity, controller, url, 262 intent.getBundleExtra(SearchManager.APP_DATA), 263 intent.getStringExtra(SearchManager.EXTRA_DATA_KEY)); 264 } 265 266 /** 267 * Launches the default web search activity with the query parameters if the given url string 268 * was identified as plain search terms and not URL/shortcut. 269 * @return true if the request was handled and web search activity was launched, false if not. 270 */ 271 private static boolean handleWebSearchRequest(Activity activity, 272 Controller controller, String inUrl, Bundle appData, 273 String extraData) { 274 if (inUrl == null) return false; 275 276 // In general, we shouldn't modify URL from Intent. 277 // But currently, we get the user-typed URL from search box as well. 278 String url = UrlUtils.fixUrl(inUrl).trim(); 279 if (TextUtils.isEmpty(url)) return false; 280 281 // URLs are handled by the regular flow of control, so 282 // return early. 283 if (Patterns.WEB_URL.matcher(url).matches() 284 || UrlUtils.ACCEPTED_URI_SCHEMA.matcher(url).matches()) { 285 return false; 286 } 287 288 final ContentResolver cr = activity.getContentResolver(); 289 final String newUrl = url; 290 if (controller == null || controller.getTabControl() == null 291 || controller.getTabControl().getCurrentWebView() == null 292 || !controller.getTabControl().getCurrentWebView() 293 .isPrivateBrowsingEnabled()) { 294 new AsyncTask<Void, Void, Void>() { 295 @Override 296 protected Void doInBackground(Void... unused) { 297 Browser.addSearchUrl(cr, newUrl); 298 return null; 299 } 300 }.execute(); 301 } 302 303 SearchEngine searchEngine = BrowserSettings.getInstance().getSearchEngine(); 304 if (searchEngine == null) return false; 305 searchEngine.startSearch(activity, url, appData, extraData); 306 307 return true; 308 } 309 310 /** 311 * A UrlData class to abstract how the content will be set to WebView. 312 * This base class uses loadUrl to show the content. 313 */ 314 static class UrlData { 315 final String mUrl; 316 final Map<String, String> mHeaders; 317 final PreloadedTabControl mPreloadedTab; 318 final String mSearchBoxQueryToSubmit; 319 final boolean mDisableUrlOverride; 320 321 UrlData(String url) { 322 this.mUrl = url; 323 this.mHeaders = null; 324 this.mPreloadedTab = null; 325 this.mSearchBoxQueryToSubmit = null; 326 this.mDisableUrlOverride = false; 327 } 328 329 UrlData(String url, Map<String, String> headers, Intent intent) { 330 this(url, headers, intent, null, null); 331 } 332 333 UrlData(String url, Map<String, String> headers, Intent intent, 334 PreloadedTabControl preloaded, String searchBoxQueryToSubmit) { 335 this.mUrl = url; 336 this.mHeaders = headers; 337 this.mPreloadedTab = preloaded; 338 this.mSearchBoxQueryToSubmit = searchBoxQueryToSubmit; 339 if (intent != null) { 340 mDisableUrlOverride = intent.getBooleanExtra( 341 BrowserActivity.EXTRA_DISABLE_URL_OVERRIDE, false); 342 } else { 343 mDisableUrlOverride = false; 344 } 345 } 346 347 boolean isEmpty() { 348 return (mUrl == null || mUrl.length() == 0); 349 } 350 351 boolean isPreloaded() { 352 return mPreloadedTab != null; 353 } 354 355 PreloadedTabControl getPreloadedTab() { 356 return mPreloadedTab; 357 } 358 359 String getSearchBoxQueryToSubmit() { 360 return mSearchBoxQueryToSubmit; 361 } 362 } 363 364} 365