private void handleRemoveFeedPost(Request request, HttpServletResponse httpServletResponse)
throws Exception {
LOG.info("removing feed");
User user = userHelpers.getUser(request);
try {
if (user == null) {
LOG.error("User not found");
return;
}
String feedId = request.getParameter(PARAM_FEED_ID);
LOG.info(String.format("Removing feed %s for user %s", feedId, user));
// ttt1 add some validation; probably best try to actually get data, set the title, ...
if (feedId == null || feedId.equals("")) {
LOG.error("feed not specified");
// ttt1 show some error
return;
}
if (user.feedIds.remove(
feedId)) { // ttt2 clean up the global feed table; that's probably better done if nobody
// accesses a feed for 3 months or so
userDb.updateFeeds(user);
LOG.info(String.format("Removed feed %s for user %s", feedId, user));
} else {
LOG.info(String.format("No feed found with ID %s for user %s", feedId, user));
}
} finally {
httpServletResponse.sendRedirect(PATH_FEED_ADMIN);
}
}
private void handleChangeSettingsPost(Request request, HttpServletResponse httpServletResponse)
throws Exception {
LoginInfo loginInfo = userHelpers.getLoginInfo(request);
if (loginInfo == null) {
WebUtils.redirectToError("Couldn't determine the current user", request, httpServletResponse);
return;
}
String stringItemsPerPage = request.getParameter(PARAM_ITEMS_PER_PAGE);
try {
loginInfo.itemsPerPage = Integer.parseInt(stringItemsPerPage);
} catch (Exception e) {
showResult(
"Error trying to set the items per page. Expected integer value but got "
+ stringItemsPerPage,
PATH_SETTINGS,
request,
httpServletResponse);
return;
}
loginInfo.style = request.getParameter(PARAM_STYLE);
loginInfo.feedDateFormat =
request.getParameter(PARAM_FEED_DATE_FORMAT); // ttt2 validate, better in JSP
loginInfoDb.add(loginInfo);
// httpServletResponse.sendRedirect(PATH_SETTINGS);
showResult("Settings changed", "/", request, httpServletResponse);
}
private void handleOpenArticle(
Request request, HttpServletResponse httpServletResponse, String target) throws Exception {
try {
int k1 = target.indexOf('/', 1);
int k2 = target.indexOf('/', k1 + 1);
String feedId = target.substring(k1 + 1, k2);
String strSeq = target.substring(k2 + 1);
int seq = Integer.parseInt(strSeq);
Article article = articleDb.get(feedId, seq);
LoginInfo loginInfo = userHelpers.getLoginInfo(request);
// ttt2 using the link from a non-authenticated browser causes a NPE; maybe do something
// better, e.g. sign up
ReadArticlesColl readArticlesColl = readArticlesCollDb.get(loginInfo.userId, feedId);
if (readArticlesColl == null) {
readArticlesColl = new ReadArticlesColl(loginInfo.userId, feedId);
}
if (!readArticlesColl.isRead(seq)) {
readArticlesColl.markRead(seq, Config.getConfig().maxSizeForReadArticles);
readArticlesCollDb.add(readArticlesColl);
}
String s =
URIUtil.encodePath(article.url)
.replace("%3F", "?")
.replace("%23", "#"); // ttt2 see how to do this right
httpServletResponse.sendRedirect(s);
} catch (Exception e) {
WebUtils.showResult(
String.format("Failed to get article for path %s. %s", target, e),
"/",
request,
httpServletResponse);
}
}
private void handleChangePasswordPost(Request request, HttpServletResponse httpServletResponse)
throws Exception {
LoginInfo loginInfo = userHelpers.getLoginInfo(request);
if (loginInfo == null) {
WebUtils.redirectToError("Couldn't determine the current user", request, httpServletResponse);
return;
}
String userId = loginInfo.userId;
String stringCrtPassword = request.getParameter(PARAM_CURRENT_PASSWORD);
String stringNewPassword = request.getParameter(PARAM_PASSWORD);
String stringNewPasswordConfirm = request.getParameter(PARAM_PASSWORD_CONFIRM);
if (!stringNewPassword.equals(stringNewPasswordConfirm)) {
showResult(
"Mismatch between password and password confirmation",
PATH_SETTINGS,
request,
httpServletResponse);
return;
}
User user =
userDb.get(
userId); // ttt1 crashes for wrong ID; 2013.07.20 - no longer have an idea what this is
// about
if (user == null) {
WebUtils.redirectToError("Couldn't find the current user", request, httpServletResponse);
return;
}
if (!user.checkPassword(stringCrtPassword)) {
showResult("Incorrect current password", PATH_SETTINGS, request, httpServletResponse);
return;
}
SecureRandom secureRandom = new SecureRandom();
String salt = "" + secureRandom.nextLong();
byte[] password = User.computeHashedPassword(stringNewPassword, salt);
user.salt = salt;
user.password = password;
// ttt3 2 clients can change the password simultaneously
userDb.add(user);
// httpServletResponse.sendRedirect(PATH_SETTINGS);
showResult("Password changed", PATH_SETTINGS, request, httpServletResponse);
}
private void handleAddFeedPost(Request request, HttpServletResponse httpServletResponse)
throws Exception {
LOG.info("adding feed");
User user = userHelpers.getUser(request);
try {
if (user == null) {
LOG.error("User not found");
return;
}
String url = request.getParameter(PARAM_NEW_FEED_URL);
// ttt1 add some validation; probably best try to actually get data, set the title, ...
if (url == null || url.equals("")) {
LOG.error("New feed not specified");
// ttt1 show some error
return;
}
MessageDigest digest = MessageDigest.getInstance("MD5");
String feedId = PrintUtils.byteArrayAsUrlString(digest.digest(url.getBytes("UTF-8")));
feedId = feedId.substring(0, Config.getConfig().feedIdSize);
Feed feed = feedDb.get(feedId);
if (feed == null) {
feed = new Feed(feedId, url);
feedDb.add(feed);
}
if (user.feedIds.contains(feedId)) {
LOG.error(String.format("Trying to add existing feed %s to user %s", feedId, user));
} else {
user.feedIds.add(feedId);
userDb.updateFeeds(user);
}
} finally {
httpServletResponse.sendRedirect(PATH_FEED_ADMIN);
}
}
private void handleLoginPost(
Request request, HttpServletResponse httpServletResponse, boolean secured) throws Exception {
String userId = request.getParameter(PARAM_USER_ID);
String password = request.getParameter(PARAM_PASSWORD);
String rememberAccountStr = request.getParameter(PARAM_REMEMBER_ACCOUNT);
boolean rememberAccount = Boolean.parseBoolean(rememberAccountStr);
LoginInfo.SessionInfo sessionInfo = UserHelpers.getSessionInfo(request);
logOut(sessionInfo.browserId);
User user = userDb.get(userId);
if (user == null) {
WebUtils.redirectToError("User " + userId + " not found", request, httpServletResponse);
return;
}
if (!user.checkPassword(password)) {
WebUtils.redirectToError("Invalid password", request, httpServletResponse);
return;
}
if (!user.active) {
WebUtils.redirectToError(
"Account for User " + userId + " needs to be activated", request, httpServletResponse);
return;
}
LOG.info("Logged in user " + userId);
sessionInfo.sessionId = null;
if (sessionInfo.browserId == null) {
sessionInfo.browserId = getRandomId();
} else {
for (LoginInfo loginInfo : loginInfoDb.getLoginsForBrowser(sessionInfo.browserId)) {
if (userId.equals(loginInfo.userId)) {
sessionInfo.sessionId = loginInfo.sessionId;
break;
}
}
}
long expireOn = System.currentTimeMillis() + Config.getConfig().loginExpireInterval;
if (sessionInfo.sessionId == null) {
sessionInfo.sessionId = getRandomId();
Config config = Config.getConfig();
loginInfoDb.add(
new LoginInfo(
sessionInfo.browserId,
sessionInfo.sessionId,
userId,
expireOn,
rememberAccount,
config.defaultStyle,
config.defaultItemsPerPage,
config.defaultFeedDateFormat));
LOG.info(String.format("Logging in in a new session. User: %s", user));
} else {
loginInfoDb.updateExpireTime(sessionInfo.browserId, sessionInfo.sessionId, expireOn);
LOG.info(String.format("Logging in in an existing session. User: %s", user));
}
WebUtils.saveCookies(
httpServletResponse, secured, sessionInfo.browserId, sessionInfo.sessionId);
httpServletResponse.sendRedirect("/");
}
/**
* Normally sets the path and a few attributes that the JSPs are likely to need. Also verifies the
* login information. If necessary, just redirects to the login page.
*
* @param target
* @param request
* @param httpServletResponse
* @param secured
* @return true if the request is already handled so the .jsp shouldn't get called
* @throws Exception
*/
private boolean prepareForJspGet(
String target, Request request, HttpServletResponse httpServletResponse, boolean secured)
throws Exception {
LoginInfo.SessionInfo sessionInfo = UserHelpers.getSessionInfo(request);
LOG.info(
String.format(
"hndl - %s ; %s; %s ; %s",
target,
request.getPathInfo(),
request.getMethod(),
secured ? "secured" : "not secured"));
String path = request.getUri().getDecodedPath();
boolean redirectToLogin = path.equals(PATH_LOGOUT);
LoginInfo loginInfo = null;
if (sessionInfo.isNull()) {
redirectToLogin = true;
LOG.info("Null session info. Logging in again.");
} else {
loginInfo =
loginInfoDb.get(
sessionInfo.browserId,
sessionInfo.sessionId); // ttt2 use a cache, to avoid going to DB
if (loginInfo == null || loginInfo.expiresOn < System.currentTimeMillis()) {
LOG.info("Session has expired. Logging in again. Info: " + loginInfo);
redirectToLogin = true;
}
}
if (!path.equals(PATH_LOGIN) && !path.equals(PATH_SIGNUP) && !path.equals(PATH_ERROR)) {
if (redirectToLogin) {
// ttt2 perhaps store URI, to return to it after login
logOut(sessionInfo.browserId);
addLoginParams(request, loginInfo);
httpServletResponse.sendRedirect(PATH_LOGIN);
return true;
}
User user = userDb.get(loginInfo.userId);
if (user == null) {
WebUtils.redirectToError("Unknown user", request, httpServletResponse);
return true;
}
if (!user.active) {
WebUtils.redirectToError("Account is not active", request, httpServletResponse);
return true;
}
request.setAttribute(VAR_FEED_DB, feedDb);
request.setAttribute(VAR_USER_DB, userDb);
request.setAttribute(VAR_ARTICLE_DB, articleDb);
request.setAttribute(VAR_READ_ARTICLES_COLL_DB, readArticlesCollDb);
request.setAttribute(VAR_USER, user);
request.setAttribute(VAR_LOGIN_INFO, loginInfo);
MultiMap<String> params = new MultiMap<>();
params.put(PARAM_PATH, path);
request.setParameters(params);
}
if (path.equals(PATH_LOGIN)) {
addLoginParams(request, loginInfo);
}
return false;
}