chrome/android/webapk/shell_apk/src/org/chromium/webapk/shell_apk/HostBrowserLauncherParams.java - chromium/src - Git at Google

 // Copyright 2018 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 package org.chromium.webapk.shell_apk;

 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ActivityInfo;
 import android.content.pm.PackageManager;
 import android.net.Uri;
 import android.os.Bundle;
 import android.text.TextUtils;
 import android.util.Pair;

 import org.chromium.webapk.lib.common.WebApkConstants;
 import org.chromium.webapk.lib.common.WebApkMetaDataKeys;

 import java.util.ArrayList;
 import java.util.Locale;

 /** Convenience wrapper for parameters to {@link HostBrowserLauncher} methods. */
 public class HostBrowserLauncherParams {
     private String mHostBrowserPackageName;
     private int mHostBrowserMajorChromiumVersion;
     private boolean mDialogShown;
     private Intent mOriginalIntent;
     private String mStartUrl;
     private int mSource;
     private boolean mForceNavigation;
     private long mLaunchTimeMs;
     private String mSelectedShareTargetActivityClassName;

     /**
      * Constructs a HostBrowserLauncherParams object from the passed in Intent and from <meta-data>
      * in the Android Manifest.
      */
     public static HostBrowserLauncherParams createForIntent(Context context, Intent intent,
             String hostBrowserPackageName, boolean dialogShown, long launchTimeMs) {
         Bundle metadata = WebApkUtils.readMetaData(context);
         if (metadata == null) return null;

         int hostBrowserMajorChromiumVersion = HostBrowserUtils.queryHostBrowserMajorChromiumVersion(
                 context, hostBrowserPackageName);

         String startUrl = null;
         int source = WebApkConstants.SHORTCUT_SOURCE_UNKNOWN;
         boolean forceNavigation = false;

         String selectedShareTargetActivityClassName = intent.getStringExtra(
                 WebApkConstants.EXTRA_WEBAPK_SELECTED_SHARE_TARGET_ACTIVITY_CLASS_NAME);
         if (Intent.ACTION_SEND.equals(intent.getAction())
                 || Intent.ACTION_SEND_MULTIPLE.equals(intent.getAction())) {
             selectedShareTargetActivityClassName = intent.getComponent().getClassName();
         }

         if (selectedShareTargetActivityClassName != null) {
             Bundle shareTargetMetaData = fetchActivityMetaData(context,
                     new ComponentName(
                             context.getPackageName(), selectedShareTargetActivityClassName));
             startUrl = computeStartUrlForShareTarget(shareTargetMetaData, intent);
             source = WebApkConstants.SHORTCUT_SOURCE_SHARE;
             forceNavigation = true;
         } else if (!TextUtils.isEmpty(intent.getDataString())) {
             startUrl = intent.getDataString();
             source = intent.getIntExtra(
                     WebApkConstants.EXTRA_SOURCE, WebApkConstants.SHORTCUT_SOURCE_EXTERNAL_INTENT);
             forceNavigation = intent.getBooleanExtra(WebApkConstants.EXTRA_FORCE_NAVIGATION, true);
         } else {
             startUrl = metadata.getString(WebApkMetaDataKeys.START_URL);
             source = WebApkConstants.SHORTCUT_SOURCE_UNKNOWN;
             forceNavigation = false;
         }

         if (startUrl == null) return null;

         startUrl = WebApkUtils.rewriteIntentUrlIfNecessary(startUrl, metadata);

         // Ignore deep links which came with non HTTP/HTTPS schemes and which were not rewritten.
         if (!doesUrlUseHttpOrHttpsScheme(startUrl)) return null;

         return new HostBrowserLauncherParams(hostBrowserPackageName,
                 hostBrowserMajorChromiumVersion, dialogShown, intent, startUrl, source,
                 forceNavigation, launchTimeMs, selectedShareTargetActivityClassName);
     }

     private static Bundle fetchActivityMetaData(
             Context context, ComponentName shareTargetComponentName) {
         ActivityInfo shareActivityInfo;
         try {
             shareActivityInfo = context.getPackageManager().getActivityInfo(
                     shareTargetComponentName, PackageManager.GET_META_DATA);
         } catch (PackageManager.NameNotFoundException e) {
             return null;
         }
         if (shareActivityInfo == null) {
             return null;
         }
         return shareActivityInfo.metaData;
     }

     private static boolean doesShareTargetUsePost(Bundle shareTargetMetaData) {
         String method = shareTargetMetaData.getString(WebApkMetaDataKeys.SHARE_METHOD);
         if (TextUtils.isEmpty(method)) {
             return false;
         }
         return "POST".equals(method.toUpperCase(Locale.ENGLISH));
     }

     /**
      * Computes the start URL for the given share intent and share activity.
      * @param shareTargetMetaData Meta data for the share target activity selected by the user.
      * @param intent Share intent.
      */
     protected static String computeStartUrlForShareTarget(
             Bundle shareTargetMetaData, Intent intent) {
         if (shareTargetMetaData == null) {
             return null;
         }
         if (doesShareTargetUsePost(shareTargetMetaData)) {
             return shareTargetMetaData.getString(WebApkMetaDataKeys.SHARE_ACTION);
         }
         return computeStartUrlForGETShareTarget(shareTargetMetaData, intent);
     }

     /**
      * Computes the start URL for the given share intent and share activity which sends GET HTTP
      * requests.
      * @param shareTargetMetaData Meta data for the share target activity selected by the user.
      * @param intent Share intent.
      */

     private static String computeStartUrlForGETShareTarget(
             Bundle shareTargetMetaData, Intent intent) {
         String shareAction = shareTargetMetaData.getString(WebApkMetaDataKeys.SHARE_ACTION);
         if (TextUtils.isEmpty(shareAction)) {
             return null;
         }

         // These can be null, they are checked downstream.
         ArrayList<Pair<String, String>> entryList = new ArrayList<>();
         entryList.add(
                 new Pair<>(shareTargetMetaData.getString(WebApkMetaDataKeys.SHARE_PARAM_TITLE),
                         intent.getStringExtra(Intent.EXTRA_SUBJECT)));
         entryList.add(new Pair<>(shareTargetMetaData.getString(WebApkMetaDataKeys.SHARE_PARAM_TEXT),
                 intent.getStringExtra(Intent.EXTRA_TEXT)));

         return createGETWebShareTargetUriString(shareAction, entryList);
     }

     /**
      * Converts the action url and parameters of a GET webshare target into a URI.
      * Example:
      * - action = "https://example.org/includinator/share.html"
      * - params
      *     title param: "title"
      *     title intent: "news"
      *     text param: "description"
      *     text intent: "story"
      * Becomes:
      *   https://example.org/includinator/share.html?title=news&description=story
      * TODO(ckitagawa): The escaping behavior isn't entirely correct. The exact encoding is still
      * being discussed at https://github.com/WICG/web-share-target/issues/59.
      */
     protected static String createGETWebShareTargetUriString(
             String action, ArrayList<Pair<String, String>> entryList) {
         Uri.Builder queryBuilder = new Uri.Builder();
         for (Pair<String, String> nameValue : entryList) {
             if (!TextUtils.isEmpty(nameValue.first) && !TextUtils.isEmpty(nameValue.second)) {
                 // Uri.Builder does URL escaping.
                 queryBuilder.appendQueryParameter(nameValue.first, nameValue.second);
             }
         }
         Uri shareUri = Uri.parse(action);
         Uri.Builder builder = shareUri.buildUpon();
         // Uri.Builder uses %20 rather than + for spaces, the spec requires +.
         String queryString = queryBuilder.build().toString();
         if (TextUtils.isEmpty(queryString)) {
             return action;
         }
         builder.encodedQuery(queryString.replace("%20", "+").substring(1));
         return builder.build().toString();
     }

     /** Returns whether the URL uses the HTTP or HTTPs schemes. */
     private static boolean doesUrlUseHttpOrHttpsScheme(String url) {
         return url != null && (url.startsWith("http:") || url.startsWith("https:"));
     }

     private HostBrowserLauncherParams(String hostBrowserPackageName,
             int hostBrowserMajorChromiumVersion, boolean dialogShown, Intent originalIntent,
             String startUrl, int source, boolean forceNavigation, long launchTimeMs,
             String selectedShareTargetActivityClassName) {
         mHostBrowserPackageName = hostBrowserPackageName;
         mHostBrowserMajorChromiumVersion = hostBrowserMajorChromiumVersion;
         mDialogShown = dialogShown;
         mOriginalIntent = originalIntent;
         mStartUrl = startUrl;
         mSource = source;
         mForceNavigation = forceNavigation;
         mLaunchTimeMs = launchTimeMs;
         mSelectedShareTargetActivityClassName = selectedShareTargetActivityClassName;
     }

     /** Returns the chosen host browser. */
     public String getHostBrowserPackageName() {
         return mHostBrowserPackageName;
     }

     /**
      * Returns the major version of the host browser. Currently, only Chromium host browsers
      * (Chrome Canary, Chrome Dev ...) are supported.
      */
     public int getHostBrowserMajorChromiumVersion() {
         return mHostBrowserMajorChromiumVersion;
     }

     /** Returns whether the choose-host-browser dialog was shown. */
     public boolean wasDialogShown() {
         return mDialogShown;
     }

     /** Returns intent used to launch WebAPK. */
     public Intent getOriginalIntent() {
         return mOriginalIntent;
     }

     /** Returns URL to launch WebAPK at. */
     public String getStartUrl() {
         return mStartUrl;
     }

     /** Returns the source which is launching/navigating the WebAPK. */
     public int getSource() {
         return mSource;
     }

     /**
      * Returns whether the WebAPK should be navigated to {@link mStartUrl} if it is already
      * running.
      */
     public boolean getForceNavigation() {
         return mForceNavigation;
     }

     /** Returns time in milliseconds that the WebAPK was launched. */
     public long getLaunchTimeMs() {
         return mLaunchTimeMs;
     }

     /** Returns the class name of the share activity that the user selected. */
     public String getSelectedShareTargetActivityClassName() {
         return mSelectedShareTargetActivityClassName;
     }
 }
	// Copyright 2018 The Chromium Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.

	package org.chromium.webapk.shell_apk;

	import android.content.ComponentName;
	import android.content.Context;
	import android.content.Intent;
	import android.content.pm.ActivityInfo;
	import android.content.pm.PackageManager;
	import android.net.Uri;
	import android.os.Bundle;
	import android.text.TextUtils;
	import android.util.Pair;

	import org.chromium.webapk.lib.common.WebApkConstants;
	import org.chromium.webapk.lib.common.WebApkMetaDataKeys;

	import java.util.ArrayList;
	import java.util.Locale;

	/** Convenience wrapper for parameters to {@link HostBrowserLauncher} methods. */
	public class HostBrowserLauncherParams {
	private String mHostBrowserPackageName;
	private int mHostBrowserMajorChromiumVersion;
	private boolean mDialogShown;
	private Intent mOriginalIntent;
	private String mStartUrl;
	private int mSource;
	private boolean mForceNavigation;
	private long mLaunchTimeMs;
	private String mSelectedShareTargetActivityClassName;

	/**
	* Constructs a HostBrowserLauncherParams object from the passed in Intent and from <meta-data>
	* in the Android Manifest.
	*/
	public static HostBrowserLauncherParams createForIntent(Context context, Intent intent,
	String hostBrowserPackageName, boolean dialogShown, long launchTimeMs) {
	Bundle metadata = WebApkUtils.readMetaData(context);
	if (metadata == null) return null;

	int hostBrowserMajorChromiumVersion = HostBrowserUtils.queryHostBrowserMajorChromiumVersion(
	context, hostBrowserPackageName);

	String startUrl = null;
	int source = WebApkConstants.SHORTCUT_SOURCE_UNKNOWN;
	boolean forceNavigation = false;

	String selectedShareTargetActivityClassName = intent.getStringExtra(
	WebApkConstants.EXTRA_WEBAPK_SELECTED_SHARE_TARGET_ACTIVITY_CLASS_NAME);
	if (Intent.ACTION_SEND.equals(intent.getAction())
	\|\| Intent.ACTION_SEND_MULTIPLE.equals(intent.getAction())) {
	selectedShareTargetActivityClassName = intent.getComponent().getClassName();
	}

	if (selectedShareTargetActivityClassName != null) {
	Bundle shareTargetMetaData = fetchActivityMetaData(context,
	new ComponentName(
	context.getPackageName(), selectedShareTargetActivityClassName));
	startUrl = computeStartUrlForShareTarget(shareTargetMetaData, intent);
	source = WebApkConstants.SHORTCUT_SOURCE_SHARE;
	forceNavigation = true;
	} else if (!TextUtils.isEmpty(intent.getDataString())) {
	startUrl = intent.getDataString();
	source = intent.getIntExtra(
	WebApkConstants.EXTRA_SOURCE, WebApkConstants.SHORTCUT_SOURCE_EXTERNAL_INTENT);
	forceNavigation = intent.getBooleanExtra(WebApkConstants.EXTRA_FORCE_NAVIGATION, true);
	} else {
	startUrl = metadata.getString(WebApkMetaDataKeys.START_URL);
	source = WebApkConstants.SHORTCUT_SOURCE_UNKNOWN;
	forceNavigation = false;
	}

	if (startUrl == null) return null;

	startUrl = WebApkUtils.rewriteIntentUrlIfNecessary(startUrl, metadata);

	// Ignore deep links which came with non HTTP/HTTPS schemes and which were not rewritten.
	if (!doesUrlUseHttpOrHttpsScheme(startUrl)) return null;

	return new HostBrowserLauncherParams(hostBrowserPackageName,
	hostBrowserMajorChromiumVersion, dialogShown, intent, startUrl, source,
	forceNavigation, launchTimeMs, selectedShareTargetActivityClassName);
	}

	private static Bundle fetchActivityMetaData(
	Context context, ComponentName shareTargetComponentName) {
	ActivityInfo shareActivityInfo;
	try {
	shareActivityInfo = context.getPackageManager().getActivityInfo(
	shareTargetComponentName, PackageManager.GET_META_DATA);
	} catch (PackageManager.NameNotFoundException e) {
	return null;
	}
	if (shareActivityInfo == null) {
	return null;
	}
	return shareActivityInfo.metaData;
	}

	private static boolean doesShareTargetUsePost(Bundle shareTargetMetaData) {
	String method = shareTargetMetaData.getString(WebApkMetaDataKeys.SHARE_METHOD);
	if (TextUtils.isEmpty(method)) {
	return false;
	}
	return "POST".equals(method.toUpperCase(Locale.ENGLISH));
	}

	/**
	* Computes the start URL for the given share intent and share activity.
	* @param shareTargetMetaData Meta data for the share target activity selected by the user.
	* @param intent Share intent.
	*/
	protected static String computeStartUrlForShareTarget(
	Bundle shareTargetMetaData, Intent intent) {
	if (shareTargetMetaData == null) {
	return null;
	}
	if (doesShareTargetUsePost(shareTargetMetaData)) {
	return shareTargetMetaData.getString(WebApkMetaDataKeys.SHARE_ACTION);
	}
	return computeStartUrlForGETShareTarget(shareTargetMetaData, intent);
	}

	/**
	* Computes the start URL for the given share intent and share activity which sends GET HTTP
	* requests.
	* @param shareTargetMetaData Meta data for the share target activity selected by the user.
	* @param intent Share intent.
	*/

	private static String computeStartUrlForGETShareTarget(
	Bundle shareTargetMetaData, Intent intent) {
	String shareAction = shareTargetMetaData.getString(WebApkMetaDataKeys.SHARE_ACTION);
	if (TextUtils.isEmpty(shareAction)) {
	return null;
	}

	// These can be null, they are checked downstream.
	ArrayList<Pair<String, String>> entryList = new ArrayList<>();
	entryList.add(
	new Pair<>(shareTargetMetaData.getString(WebApkMetaDataKeys.SHARE_PARAM_TITLE),
	intent.getStringExtra(Intent.EXTRA_SUBJECT)));
	entryList.add(new Pair<>(shareTargetMetaData.getString(WebApkMetaDataKeys.SHARE_PARAM_TEXT),
	intent.getStringExtra(Intent.EXTRA_TEXT)));

	return createGETWebShareTargetUriString(shareAction, entryList);
	}

	/**
	* Converts the action url and parameters of a GET webshare target into a URI.
	* Example:
	* - action = "https://example.org/includinator/share.html"
	* - params
	* title param: "title"
	* title intent: "news"
	* text param: "description"
	* text intent: "story"
	* Becomes:
	* https://example.org/includinator/share.html?title=news&description=story
	* TODO(ckitagawa): The escaping behavior isn't entirely correct. The exact encoding is still
	* being discussed at https://github.com/WICG/web-share-target/issues/59.
	*/
	protected static String createGETWebShareTargetUriString(
	String action, ArrayList<Pair<String, String>> entryList) {
	Uri.Builder queryBuilder = new Uri.Builder();
	for (Pair<String, String> nameValue : entryList) {
	if (!TextUtils.isEmpty(nameValue.first) && !TextUtils.isEmpty(nameValue.second)) {
	// Uri.Builder does URL escaping.
	queryBuilder.appendQueryParameter(nameValue.first, nameValue.second);
	}
	}
	Uri shareUri = Uri.parse(action);
	Uri.Builder builder = shareUri.buildUpon();
	// Uri.Builder uses %20 rather than + for spaces, the spec requires +.
	String queryString = queryBuilder.build().toString();
	if (TextUtils.isEmpty(queryString)) {
	return action;
	}
	builder.encodedQuery(queryString.replace("%20", "+").substring(1));
	return builder.build().toString();
	}

	/** Returns whether the URL uses the HTTP or HTTPs schemes. */
	private static boolean doesUrlUseHttpOrHttpsScheme(String url) {
	return url != null && (url.startsWith("http:") \|\| url.startsWith("https:"));
	}

	private HostBrowserLauncherParams(String hostBrowserPackageName,
	int hostBrowserMajorChromiumVersion, boolean dialogShown, Intent originalIntent,
	String startUrl, int source, boolean forceNavigation, long launchTimeMs,
	String selectedShareTargetActivityClassName) {
	mHostBrowserPackageName = hostBrowserPackageName;
	mHostBrowserMajorChromiumVersion = hostBrowserMajorChromiumVersion;
	mDialogShown = dialogShown;
	mOriginalIntent = originalIntent;
	mStartUrl = startUrl;
	mSource = source;
	mForceNavigation = forceNavigation;
	mLaunchTimeMs = launchTimeMs;
	mSelectedShareTargetActivityClassName = selectedShareTargetActivityClassName;
	}

	/** Returns the chosen host browser. */
	public String getHostBrowserPackageName() {
	return mHostBrowserPackageName;
	}

	/**
	* Returns the major version of the host browser. Currently, only Chromium host browsers
	* (Chrome Canary, Chrome Dev ...) are supported.
	*/
	public int getHostBrowserMajorChromiumVersion() {
	return mHostBrowserMajorChromiumVersion;
	}

	/** Returns whether the choose-host-browser dialog was shown. */
	public boolean wasDialogShown() {
	return mDialogShown;
	}

	/** Returns intent used to launch WebAPK. */
	public Intent getOriginalIntent() {
	return mOriginalIntent;
	}

	/** Returns URL to launch WebAPK at. */
	public String getStartUrl() {
	return mStartUrl;
	}

	/** Returns the source which is launching/navigating the WebAPK. */
	public int getSource() {
	return mSource;
	}

	/**
	* Returns whether the WebAPK should be navigated to {@link mStartUrl} if it is already
	* running.
	*/
	public boolean getForceNavigation() {
	return mForceNavigation;
	}

	/** Returns time in milliseconds that the WebAPK was launched. */
	public long getLaunchTimeMs() {
	return mLaunchTimeMs;
	}

	/** Returns the class name of the share activity that the user selected. */
	public String getSelectedShareTargetActivityClassName() {
	return mSelectedShareTargetActivityClassName;
	}
	}