OtaNotifier.java
/*
*
*
* Copyright 1990-2007 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 only, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is
* included at /legal/license.txt).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this work; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
package com.sun.midp.installer;
import java.io.IOException;
import java.io.OutputStream;
import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;
import com.sun.midp.configurator.Constants;
import com.sun.midp.io.Base64;
import com.sun.midp.io.j2me.http.Protocol;
import com.sun.midp.midlet.MIDletSuite;
import com.sun.midp.midlet.MIDletStateHandler;
import com.sun.midp.midletsuite.MIDletSuiteStorage;
import com.sun.midp.security.Permissions;
import com.sun.midp.security.SecurityToken;
/**
* This class handles sending installation and deletion notifications as
* specified by the OTA section of the MIDP 2.0 specification.
* The delete notifications are only sent when an install notification is
* sent. The installer will call this class to send the initial install
* notification, if the notification fails and is a success notification,
* the notification will be queued, so that the next time a MIDlet from the
* suite is run, that suite's notification will be retried. The MIDlet
* state handler will call this class to process install notification retries.
*/
public final class OtaNotifier {
/** Retry delay. */
static final int RETRY_DELAY = 3000; // 3 seconds
/** MIDlet property for the install notify URL. */
public static final String NOTIFY_PROP = "MIDlet-Install-Notify";
/** Success message for the suite provider. */
public static final String SUCCESS_MSG = "900 Success";
/** Error message for the suite provider. */
public static final String INSUFFICIENT_MEM_MSG =
"901 Insufficient Memory";
/** Error message for the suite provider. */
public static final String USER_CANCELLED_MSG = "902 User Cancelled";
/** Error message for the suite provider. */
public static final String JAR_SIZE_MISMATCH_MSG = "904 JAR size mismatch";
/** Error message for the suite provider. */
public static final String ATTRIBUTE_MISMATCH_MSG =
"905 Attribute Mismatch";
/** Error message for the suite provider. */
public static final String INVALID_JAD_MSG = "906 Invalid Descriptor";
/** Error message for the suite provider. */
public static final String INVALID_JAR_MSG = "907 Invalid JAR";
/** Error message for the suite provider. */
public static final String INCOMPATIBLE_MSG =
"908 Incompatible Configuration or Profile";
/** Error message for authentication failure. */
public static final String AUTHENTICATION_FAILURE_MSG =
"909 Application authentication failure";
/** Error message for authorization failure. */
public static final String AUTHORIZATION_FAILURE_MSG =
"910 Application authorization failure";
/** Error message for push registration failure. */
public static final String PUSH_REG_FAILURE_MSG =
"911 Push registration failure";
/** Error message for push registration failure. */
public static final String DELETE_NOTIFICATION_MSG =
"912 Deletion Notification";
/** Message to send when a content handler install fails. */
public static final String CONTENT_HANDLER_CONFLICT =
"938 Content handler conflicts with other handlers";
/** Message to send when a content handler install fails. */
public static final String INVALID_CONTENT_HANDLER =
"939 Content handler install failed";
/**
* Posts a status message back to the provider's URL in JAD.
* This method will also retry ALL pending delete notifications.
*
* @param message status message to post
* @param suite MIDlet suite object
* @param proxyUsername if not null, it will be put in the post
* @param proxyPassword if not null, it will be put in the post
*/
public static void postInstallMsgBackToProvider(String message,
MIDletSuite suite, String proxyUsername, String proxyPassword) {
String url;
MIDletSuite callingMidletSuite =
MIDletStateHandler.getMidletStateHandler().getMIDletSuite();
if (callingMidletSuite == null) {
throw new IllegalStateException("This method can't be called " +
"before a suite is started.");
}
callingMidletSuite.checkIfPermissionAllowed(Permissions.AMS);
// Now, send out install notifications
url = suite.getProperty(NOTIFY_PROP);
try {
postMsgBackToProvider(message, url, proxyUsername, proxyPassword);
} catch (Throwable t) {
if (message == SUCCESS_MSG) {
// Only queue successful install notifications for retry
addInstallNotification(suite.getID(), url);
}
}
}
/**
* Retry the pending install status message for this suite only.
* This method will also retry ALL pending delete notifications,
* if the install notification was retried.
*
* @param token security token of the caller
* @param suite MIDlet suite object
*/
public static void retryInstallNotification(SecurityToken token,
MIDletSuite suite) {
/*
* Delay any processing so that startup time is not effected.
*/
new Thread(new InstallRetryHandler(token, suite)).start();
}
/**
* Retry the pending install status message for this suite only.
* This method will also retry ALL pending delete notifications,
* if the install notification was retried.
*
* @param token security token of the caller
* @param suite MIDlet suite object
*/
static void retryInstallNotificationInternal(SecurityToken token,
MIDletSuite suite) {
PendingNotification notification = new PendingNotification();
token.checkIfPermissionAllowed(Permissions.AMS);
// Now, send out install notifications
if (suite.getProperty(NOTIFY_PROP) == null) {
return;
}
if (!getInstallNotificationForRetry(suite.getID(), notification)) {
return;
}
try {
Protocol httpConnection = new Protocol();
httpConnection.openPrim(token, notification.url);
postMsgBackToProvider(SUCCESS_MSG, httpConnection, null, null);
removeInstallNotification(notification.suiteId);
} catch (Throwable t) {
if (notification.retries >=
Constants.MAX_INSTALL_DELETE_NOTIFICATION_RETRIES) {
removeInstallNotification(notification.suiteId);
}
}
try {
// Send out delete notifications that have been queued, first
postQueuedDeleteMsgsBackToProvider(null, null);
} catch (Throwable t) {
// ignore
}
}
/**
* Posts all queued delete notification messages
*
* @param proxyUsername if not null, it will be put in the post
* @param proxyPassword if not null, it will be put in the post
*/
public static void postQueuedDeleteMsgsBackToProvider(
String proxyUsername, String proxyPassword) {
PendingNotification[] deleteNotifyList;
deleteNotifyList = getDeleteNotifications();
for (int i = 0; i < deleteNotifyList.length; i++) {
try {
postMsgBackToProvider(DELETE_NOTIFICATION_MSG,
deleteNotifyList[i].url,
proxyUsername, proxyPassword);
removeDeleteNotification(deleteNotifyList[i].suiteId);
} catch (Throwable t) {
if (deleteNotifyList[i].retries >=
Constants.MAX_INSTALL_DELETE_NOTIFICATION_RETRIES) {
removeDeleteNotification(deleteNotifyList[i].suiteId);
}
}
}
}
/**
* Posts a status message back to the provider's URL in JAD.
*
* @param message status message to post
* @param url target http url for the status message
* @param proxyUsername if not null, it will be put in the post
* @param proxyPassword if not null, it will be put in the post
*
* @exception IOException is thrown if any error prevents the
* notification from being successful
*/
private static void postMsgBackToProvider(String message, String url,
String proxyUsername, String proxyPassword) throws IOException {
HttpConnection transaction;
if (url == null) {
return;
}
transaction = (HttpConnection)Connector.open(url, Connector.WRITE);
postMsgBackToProvider(message, transaction, proxyUsername,
proxyPassword);
}
/**
* Posts a status message back to the provider's URL in JAD.
*
* @param message status message to post
* @param transaction http connection to use for posting the status message
* @param proxyUsername if not null, it will be put in the post
* @param proxyPassword if not null, it will be put in the post
*
* @exception IOException is thrown if any error prevents the
* notification from being successful
*/
private static void postMsgBackToProvider(String message,
HttpConnection transaction,
String proxyUsername, String proxyPassword) throws IOException {
OutputStream out;
try {
transaction.setRequestMethod(HttpConnection.POST);
if (proxyUsername != null && proxyPassword != null) {
transaction.setRequestProperty("Proxy-Authorization",
formatAuthCredentials(proxyUsername, proxyPassword));
}
out = transaction.openOutputStream();
try {
int responseCode;
out.write(message.getBytes());
responseCode = transaction.getResponseCode();
if (responseCode != HttpConnection.HTTP_OK) {
throw new IOException("Failed to notify " +
transaction.getURL() +
" HTTP response code: " + responseCode);
}
} finally {
out.close();
}
} finally {
transaction.close();
}
}
/**
* Formats the username and password for HTTP basic authentication
* according RFC 2617.
*
* @param username for HTTP authentication
* @param password for HTTP authentication
*
* @return properly formated basic authentication credential
*/
private static String formatAuthCredentials(String username,
String password) {
byte[] data = new byte[username.length() + password.length() + 1];
int j = 0;
for (int i = 0; i < username.length(); i++, j++) {
data[j] = (byte)username.charAt(i);
}
data[j] = (byte)':';
j++;
for (int i = 0; i < password.length(); i++, j++) {
data[j] = (byte)password.charAt(i);
}
return "Basic " + Base64.encode(data, 0, data.length);
}
/**
* Retrieves the queued delete notification list. Each element
* in the array is a URL to send a delete notification to.
*
* @return the delete notification list
*/
private static synchronized PendingNotification[]
getDeleteNotifications() {
PendingNotification[] array =
new PendingNotification[getNumberOfDeleteNotifications()];
if (array.length > 0) {
for (int i = 0; i < array.length; i++) {
array[i] = new PendingNotification();
}
fillDeleteNotificationListForRetry(array);
}
return array;
}
/**
* Retrieves the number of URLs queued delete in the notification list.
*
* @return the number of URLs in the delete notification list
*/
private static native int getNumberOfDeleteNotifications();
/**
* Retrieves the queued delete notification list from storage and
* increments the retry count of every member of the list.
*
* @param list empty delete notification list to fill
*/
private static native void fillDeleteNotificationListForRetry(
PendingNotification[] list);
/**
* Removes the element from the delete notification list.
*
* @param suiteId suite ID of the notification
*/
private static native void removeDeleteNotification(int suiteId);
/**
* Adds an element to the install notification list.
*
* @param suiteId suite the notification belongs to
* @param url url to send the notification to
*/
private static native void addInstallNotification(int suiteId,
String url);
/**
* Retrieves the URL of suite's install notification from storage and
* increments the retry count of element.
*
* @param suiteId suite ID of the notification
* @param dest where to put the notification
*
* @return true if the notification is found
*/
private static native boolean getInstallNotificationForRetry(
int suiteId, PendingNotification dest);
/**
* Removes the element from the install notification list.
*
* @param suiteId suite ID of the notification
*/
private static native void removeInstallNotification(int suiteId);
}
/** Executes install reties in the background. */
final class InstallRetryHandler implements Runnable {
/** Security token of the caller. */
private SecurityToken token;
/** MIDlet suite to retry. */
private MIDletSuite suite;
/**
* Construct a InstallRetryHandler.
*
* @param theToken security token of the caller
* @param theSuite MIDlet suite object
*/
InstallRetryHandler(SecurityToken theToken, MIDletSuite theSuite) {
token = theToken;
suite = theSuite;
}
/** Retries after a short delay. */
public void run() {
try {
Thread.sleep(OtaNotifier.RETRY_DELAY);
} catch (InterruptedException ie) {
// ignore
}
OtaNotifier.retryInstallNotificationInternal(token, suite);
}
}
/** Pending install or delete notification */
final class PendingNotification {
/** Number of times the record has been retried. */
int retries;
/** Suite this notification is for. */
int suiteId;
/** URL to post the notification to. */
String url;
/**
* Returns a debug string.
*
* @return value of each field in a string
*/
public String toString() {
return "PendingNotification(suite ID = " + suiteId + ", retries = " +
retries + ", URL = " + url + ")";
}
}
---------------------------------------------------------
專注移動開發
Android, Windows Mobile, iPhone, J2ME, BlackBerry, Symbian
posted on 2010-05-10 16:33
TiGERTiAN 閱讀(530)
評論(0) 編輯 收藏 所屬分類:
Java 、
J2ME