/**
* Markdowns.
*
* <p>Renders the response with a json object, for example,
*
* <pre>
* {
* "html": ""
* }
* </pre>
*
* @param request the specified http servlet request
* @param response the specified http servlet response
* @param context the specified http request context
* @throws Exception exception
*/
@RequestProcessing(value = "/markdown", method = HTTPRequestMethod.POST)
@Before(adviceClass = StopwatchStartAdvice.class)
@After(adviceClass = StopwatchEndAdvice.class)
public void markdown2HTML(
final HttpServletRequest request,
final HttpServletResponse response,
final HTTPRequestContext context)
throws Exception {
final JSONRenderer renderer = new JSONRenderer();
context.setRenderer(renderer);
final JSONObject result = new JSONObject();
renderer.setJSONObject(result);
result.put(Keys.STATUS_CODE, true);
String markdownText = request.getParameter("markdownText");
if (Strings.isEmptyOrNull(markdownText)) {
result.put("html", "");
return;
}
final JSONObject currentUser = userQueryService.getCurrentUser(request);
if (null == currentUser) {
response.sendError(HttpServletResponse.SC_FORBIDDEN);
return;
}
final Set<String> userNames = userQueryService.getUserNames(markdownText);
for (final String userName : userNames) {
markdownText =
markdownText.replace(
'@' + userName,
"@<a href='"
+ Latkes.getServePath()
+ "/member/"
+ userName
+ "'>"
+ userName
+ "</a>");
}
markdownText = shortLinkQueryService.linkArticle(markdownText);
markdownText = shortLinkQueryService.linkTag(markdownText);
markdownText = Emotions.convert(markdownText);
markdownText = Markdowns.toHTML(markdownText);
markdownText = Markdowns.clean(markdownText, "");
result.put("html", markdownText);
}
/**
* Processes the specified comment content.
*
* <ul>
* <li>Generates @username home URL
* <li>Markdowns
* <li>Blocks comment if need
* <li>Generates emotion images
* <li>Generates article link with article id
* </ul>
*
* @param comment the specified comment, for example,
* <pre>
* {
* "commentContent": "",
* ....,
* "commenter": {}
* }
* </pre>
*/
private void processCommentContent(final JSONObject comment) {
final JSONObject commenter = comment.optJSONObject(Comment.COMMENT_T_COMMENTER);
if (Comment.COMMENT_STATUS_C_INVALID == comment.optInt(Comment.COMMENT_STATUS)
|| UserExt.USER_STATUS_C_INVALID == commenter.optInt(UserExt.USER_STATUS)) {
comment.put(Comment.COMMENT_CONTENT, langPropsService.get("commentContentBlockLabel"));
return;
}
genCommentContentUserName(comment);
String commentContent = comment.optString(Comment.COMMENT_CONTENT);
commentContent = shortLinkQueryService.linkArticle(commentContent);
commentContent = shortLinkQueryService.linkTag(commentContent);
commentContent = Emotions.convert(commentContent);
commentContent = Markdowns.toHTML(commentContent);
commentContent = Markdowns.clean(commentContent, "");
comment.put(Comment.COMMENT_CONTENT, commentContent);
}
/**
* Gets article preview content.
*
* <p>Renders the response with a json object, for example,
*
* <pre>
* {
* "html": ""
* }
* </pre>
*
* @param request the specified http servlet request
* @param response the specified http servlet response
* @param context the specified http request context
* @param articleId the specified article id
* @throws Exception exception
*/
@RequestProcessing(value = "/article/{articleId}/preview", method = HTTPRequestMethod.GET)
@Before(adviceClass = StopwatchStartAdvice.class)
@After(adviceClass = StopwatchEndAdvice.class)
public void getArticlePreviewContent(
final HttpServletRequest request,
final HttpServletResponse response,
final HTTPRequestContext context,
final String articleId)
throws Exception {
final JSONRenderer renderer = new JSONRenderer();
context.setRenderer(renderer);
final JSONObject result = Results.trueResult();
renderer.setJSONObject(result);
result.put("html", "");
final JSONObject article = articleQueryService.getArticle(articleId);
if (null == article) {
result.put(Keys.STATUS_CODE, false);
return;
}
final int length = Integer.valueOf("150");
String content = article.optString(Article.ARTICLE_CONTENT);
final String authorId = article.optString(Article.ARTICLE_AUTHOR_ID);
final JSONObject author = userQueryService.getUser(authorId);
if (null != author && UserExt.USER_STATUS_C_INVALID == author.optInt(UserExt.USER_STATUS)
|| Article.ARTICLE_STATUS_C_INVALID == article.optInt(Article.ARTICLE_STATUS)) {
result.put("html", langPropsService.get("articleContentBlockLabel"));
return;
}
final Set<String> userNames = userQueryService.getUserNames(content);
final JSONObject currentUser = userQueryService.getCurrentUser(request);
final String currentUserName = null == currentUser ? "" : currentUser.optString(User.USER_NAME);
final String authorName = author.optString(User.USER_NAME);
if (Article.ARTICLE_TYPE_C_DISCUSSION == article.optInt(Article.ARTICLE_TYPE)
&& !authorName.equals(currentUserName)) {
boolean invited = false;
for (final String userName : userNames) {
if (userName.equals(currentUserName)) {
invited = true;
break;
}
}
if (!invited) {
String blockContent = langPropsService.get("articleDiscussionLabel");
blockContent =
blockContent.replace(
"{user}",
"<a href='"
+ Latkes.getServePath()
+ "/member/"
+ authorName
+ "'>"
+ authorName
+ "</a>");
result.put("html", blockContent);
return;
}
}
content = Emotions.convert(content);
content = Markdowns.toHTML(content);
content = Jsoup.clean(content, Whitelist.none());
if (content.length() >= length) {
content = StringUtils.substring(content, 0, length) + " ....";
}
result.put("html", content);
}
/**
* Gets comments by the specified request json object.
*
* @param requestJSONObject the specified request json object, for example,
* <pre>
* {
* "paginationCurrentPageNum": 1,
* "paginationPageSize": 20,
* "paginationWindowSize": 10,
* }, see {@link Pagination} for more details
* </pre>
*
* @param commentFields the specified article fields to return
* @return for example,
* <pre>
* {
* "pagination": {
* "paginationPageCount": 100,
* "paginationPageNums": [1, 2, 3, 4, 5]
* },
* "comments": [{
* "oId": "",
* "commentContent": "",
* "commentCreateTime": "",
* ....
* }, ....]
* }
* </pre>
*
* @throws ServiceException service exception
* @see Pagination
*/
public JSONObject getComments(
final JSONObject requestJSONObject, final Map<String, Class<?>> commentFields)
throws ServiceException {
final JSONObject ret = new JSONObject();
final int currentPageNum = requestJSONObject.optInt(Pagination.PAGINATION_CURRENT_PAGE_NUM);
final int pageSize = requestJSONObject.optInt(Pagination.PAGINATION_PAGE_SIZE);
final int windowSize = requestJSONObject.optInt(Pagination.PAGINATION_WINDOW_SIZE);
final Query query =
new Query()
.setCurrentPageNum(currentPageNum)
.setPageSize(pageSize)
.addSort(Comment.COMMENT_CREATE_TIME, SortDirection.DESCENDING);
for (final Map.Entry<String, Class<?>> commentField : commentFields.entrySet()) {
query.addProjection(commentField.getKey(), commentField.getValue());
}
JSONObject result = null;
try {
result = commentRepository.get(query);
} catch (final RepositoryException e) {
LOGGER.log(Level.ERROR, "Gets comments failed", e);
throw new ServiceException(e);
}
final int pageCount =
result.optJSONObject(Pagination.PAGINATION).optInt(Pagination.PAGINATION_PAGE_COUNT);
final JSONObject pagination = new JSONObject();
ret.put(Pagination.PAGINATION, pagination);
final List<Integer> pageNums =
Paginator.paginate(currentPageNum, pageSize, pageCount, windowSize);
pagination.put(Pagination.PAGINATION_PAGE_COUNT, pageCount);
pagination.put(Pagination.PAGINATION_PAGE_NUMS, pageNums);
final JSONArray data = result.optJSONArray(Keys.RESULTS);
final List<JSONObject> comments = CollectionUtils.<JSONObject>jsonArrayToList(data);
try {
for (final JSONObject comment : comments) {
organizeComment(comment);
final String articleId = comment.optString(Comment.COMMENT_ON_ARTICLE_ID);
final JSONObject article = articleRepository.get(articleId);
comment.put(
Comment.COMMENT_T_ARTICLE_TITLE,
Article.ARTICLE_STATUS_C_INVALID == article.optInt(Article.ARTICLE_STATUS)
? langPropsService.get("articleTitleBlockLabel")
: Emotions.convert(article.optString(Article.ARTICLE_TITLE)));
comment.put(
Comment.COMMENT_T_ARTICLE_PERMALINK, article.optString(Article.ARTICLE_PERMALINK));
}
} catch (final RepositoryException e) {
LOGGER.log(Level.ERROR, "Organizes comments failed", e);
throw new ServiceException(e);
}
ret.put(Comment.COMMENTS, comments);
return ret;
}
/**
* Gets the user comments with the specified user id, page number and page size.
*
* @param userId the specified user id
* @param currentPageNum the specified page number
* @param pageSize the specified page size
* @param viewer the specified viewer, may be {@code null}
* @return user comments, return an empty list if not found
* @throws ServiceException service exception
*/
public List<JSONObject> getUserComments(
final String userId, final int currentPageNum, final int pageSize, final JSONObject viewer)
throws ServiceException {
final Query query =
new Query()
.addSort(Comment.COMMENT_CREATE_TIME, SortDirection.DESCENDING)
.setCurrentPageNum(currentPageNum)
.setPageSize(pageSize)
.setFilter(new PropertyFilter(Comment.COMMENT_AUTHOR_ID, FilterOperator.EQUAL, userId));
try {
final JSONObject result = commentRepository.get(query);
final List<JSONObject> ret =
CollectionUtils.<JSONObject>jsonArrayToList(result.optJSONArray(Keys.RESULTS));
for (final JSONObject comment : ret) {
comment.put(
Comment.COMMENT_CREATE_TIME, new Date(comment.optLong(Comment.COMMENT_CREATE_TIME)));
final String articleId = comment.optString(Comment.COMMENT_ON_ARTICLE_ID);
final JSONObject article = articleRepository.get(articleId);
comment.put(
Comment.COMMENT_T_ARTICLE_TITLE,
Article.ARTICLE_STATUS_C_INVALID == article.optInt(Article.ARTICLE_STATUS)
? langPropsService.get("articleTitleBlockLabel")
: Emotions.convert(article.optString(Article.ARTICLE_TITLE)));
comment.put(Comment.COMMENT_T_ARTICLE_TYPE, article.optInt(Article.ARTICLE_TYPE));
comment.put(
Comment.COMMENT_T_ARTICLE_PERMALINK, article.optString(Article.ARTICLE_PERMALINK));
final JSONObject commenter = userRepository.get(userId);
comment.put(Comment.COMMENT_T_COMMENTER, commenter);
final String articleAuthorId = article.optString(Article.ARTICLE_AUTHOR_ID);
final JSONObject articleAuthor = userRepository.get(articleAuthorId);
final String articleAuthorName = articleAuthor.optString(User.USER_NAME);
final String articleAuthorURL = "/member/" + articleAuthor.optString(User.USER_NAME);
comment.put(Comment.COMMENT_T_ARTICLE_AUTHOR_NAME, articleAuthorName);
comment.put(Comment.COMMENT_T_ARTICLE_AUTHOR_URL, articleAuthorURL);
final String articleAuthorEmail = articleAuthor.optString(User.USER_EMAIL);
final String articleAuthorThumbnailURL =
avatarQueryService.getAvatarURL(articleAuthorEmail);
comment.put(Comment.COMMENT_T_ARTICLE_AUTHOR_THUMBNAIL_URL, articleAuthorThumbnailURL);
if (Article.ARTICLE_TYPE_C_DISCUSSION == article.optInt(Article.ARTICLE_TYPE)) {
final String msgContent =
langPropsService
.get("articleDiscussionLabel")
.replace(
"{user}",
"<a href='"
+ Latkes.getServePath()
+ "/member/"
+ articleAuthorName
+ "'>"
+ articleAuthorName
+ "</a>");
if (null == viewer) {
comment.put(Comment.COMMENT_CONTENT, msgContent);
} else {
final String commenterName = commenter.optString(User.USER_NAME);
final String viewerUserName = viewer.optString(User.USER_NAME);
final String viewerRole = viewer.optString(User.USER_ROLE);
if (!commenterName.equals(viewerUserName) && !Role.ADMIN_ROLE.equals(viewerRole)) {
final String articleContent = article.optString(Article.ARTICLE_CONTENT);
final Set<String> userNames = userQueryService.getUserNames(articleContent);
boolean invited = false;
for (final String userName : userNames) {
if (userName.equals(viewerUserName)) {
invited = true;
break;
}
}
if (!invited) {
comment.put(Comment.COMMENT_CONTENT, msgContent);
}
}
}
}
processCommentContent(comment);
}
return ret;
} catch (final RepositoryException e) {
LOGGER.log(Level.ERROR, "Gets user comments failed", e);
throw new ServiceException(e);
}
}
@Override
public void action(final Event<JSONObject> event) throws EventException {
final JSONObject data = event.getData();
LOGGER.log(
Level.DEBUG,
"Processing an event[type={0}, data={1}] in listener[className={2}]",
new Object[] {event.getType(), data, CommentNotifier.class.getName()});
try {
final JSONObject originalArticle = data.getJSONObject(Article.ARTICLE);
final JSONObject originalComment = data.getJSONObject(Comment.COMMENT);
final String commentContent = originalComment.optString(Comment.COMMENT_CONTENT);
final JSONObject commenter =
userQueryService.getUser(originalComment.optString(Comment.COMMENT_AUTHOR_ID));
final String commenterName = commenter.optString(User.USER_NAME);
// 0. Data channel (WebSocket)
final JSONObject chData = new JSONObject();
chData.put(Article.ARTICLE_T_ID, originalArticle.optString(Keys.OBJECT_ID));
chData.put(Comment.COMMENT_T_ID, originalComment.optString(Keys.OBJECT_ID));
chData.put(Comment.COMMENT_T_AUTHOR_NAME, commenterName);
final String userEmail = commenter.optString(User.USER_EMAIL);
chData.put(
Comment.COMMENT_T_AUTHOR_THUMBNAIL_URL, avatarQueryService.getAvatarURL(userEmail));
chData.put(Common.THUMBNAIL_UPDATE_TIME, commenter.optLong(UserExt.USER_UPDATE_TIME));
chData.put(
Comment.COMMENT_CREATE_TIME,
DateFormatUtils.format(
new Date(originalComment.optLong(Comment.COMMENT_CREATE_TIME)), "yyyy-MM-dd HH:mm"));
String cc = shortLinkQueryService.linkArticle(commentContent);
cc = shortLinkQueryService.linkTag(cc);
cc = Emotions.convert(cc);
cc = Markdowns.toHTML(cc);
cc = Markdowns.clean(cc, "");
try {
final Set<String> userNames = userQueryService.getUserNames(commentContent);
for (final String userName : userNames) {
cc =
cc.replace(
'@' + userName,
"@<a href='"
+ Latkes.getServePath()
+ "/member/"
+ userName
+ "'>"
+ userName
+ "</a>");
}
} catch (final ServiceException e) {
LOGGER.log(Level.ERROR, "Generates @username home URL for comment content failed", e);
}
chData.put(Comment.COMMENT_CONTENT, cc);
ArticleChannel.notifyComment(chData);
// + Article Heat
final JSONObject articleHeat = new JSONObject();
articleHeat.put(Article.ARTICLE_T_ID, originalArticle.optString(Keys.OBJECT_ID));
articleHeat.put(Common.OPERATION, "+");
ArticleListChannel.notifyHeat(articleHeat);
final boolean isDiscussion =
originalArticle.optInt(Article.ARTICLE_TYPE) == Article.ARTICLE_TYPE_C_DISCUSSION;
// Timeline
if (!isDiscussion) {
final String articleTitle =
StringUtils.substring(
Jsoup.parse(originalArticle.optString(Article.ARTICLE_TITLE)).text(), 0, 28);
final String articlePermalink =
Latkes.getServePath() + originalArticle.optString(Article.ARTICLE_PERMALINK);
final JSONObject timeline = new JSONObject();
timeline.put(Common.TYPE, Comment.COMMENT);
String content = langPropsService.get("timelineCommentLabel");
content =
content
.replace(
"{user}",
"<a target='_blank' rel='nofollow' href='"
+ Latkes.getServePath()
+ "/member/"
+ commenterName
+ "'>"
+ commenterName
+ "</a>")
.replace(
"{article}",
"<a target='_blank' rel='nofollow' href='"
+ articlePermalink
+ "'>"
+ articleTitle
+ "</a>")
.replace("{comment}", StringUtils.substring(Jsoup.parse(cc).text(), 0, 28));
timeline.put(Common.CONTENT, content);
timelineMgmtService.addTimeline(timeline);
}
// 1. 'Commented' Notification
final String articleAuthorId = originalArticle.optString(Article.ARTICLE_AUTHOR_ID);
final Set<String> atUserNames = userQueryService.getUserNames(commentContent);
final boolean commenterIsArticleAuthor =
articleAuthorId.equals(originalComment.optString(Comment.COMMENT_AUTHOR_ID));
if (commenterIsArticleAuthor && atUserNames.isEmpty()) {
return;
}
atUserNames.remove(commenterName); // Do not notify commenter itself
if (!commenterIsArticleAuthor) {
final JSONObject requestJSONObject = new JSONObject();
requestJSONObject.put(Notification.NOTIFICATION_USER_ID, articleAuthorId);
requestJSONObject.put(
Notification.NOTIFICATION_DATA_ID, originalComment.optString(Keys.OBJECT_ID));
notificationMgmtService.addCommentedNotification(requestJSONObject);
}
final String articleContent = originalArticle.optString(Article.ARTICLE_CONTENT);
final Set<String> articleContentAtUserNames = userQueryService.getUserNames(articleContent);
// 2. 'At' Notification
for (final String userName : atUserNames) {
if (isDiscussion && !articleContentAtUserNames.contains(userName)) {
continue;
}
final JSONObject user = userQueryService.getUserByName(userName);
if (null == user) {
LOGGER.log(Level.WARN, "Not found user by name [{0}]", userName);
continue;
}
if (user.optString(Keys.OBJECT_ID).equals(articleAuthorId)) {
continue; // Has added in step 1
}
final JSONObject requestJSONObject = new JSONObject();
requestJSONObject.put(Notification.NOTIFICATION_USER_ID, user.optString(Keys.OBJECT_ID));
requestJSONObject.put(
Notification.NOTIFICATION_DATA_ID, originalComment.optString(Keys.OBJECT_ID));
notificationMgmtService.addAtNotification(requestJSONObject);
}
} catch (final Exception e) {
LOGGER.log(Level.ERROR, "Sends the comment notification failed", e);
}
}