/**
* @api {get} /yvr/api/v1/topic/:id 获取帖子的详细数据
* @apiGroup Topic
* @apiVersion 1.0.0
* @apiParam {String} id 帖子id
* @apiParam {boolean} [mdrender=true] 是否渲染Markdown
* @apiSuccess {Object[]} data 帖子数据
* @apiSuccess {String} data.id 唯一标示符
* @apiSuccess {String} data.title 标题
* @apiSuccess {String} data.tab 类型
* @apiSuccess {String} data.content 内容
* @apiSuccess {String} [data.last_reply_at] 最后回复时间
* @apiSuccess {boolean} data.top 是否置顶
* @apiSuccess {boolean} data.good 是否为精华帖
* @apiSuccess {int} data.reply_count 总回复数量
* @apiSuccess {int} data.visit_count 总浏览数量
* @apiSuccess {Object} data.author 作者信息
* @apiSuccess {String} data.author.id 作者id
* @apiSuccess {String} data.author.loginname 作者登陆名
* @apiSuccess {Object[]} [data.replies] 回复列表
* @apiSuccess {String} data.replies.id 回复id
* @apiSuccess {String} data.replies.author 回复的作者
* @apiSuccess {String} data.replies.author.id 回复的作者的id
* @apiSuccess {String} data.replies.author.loginname 回复的作者的登陆名称
* @apiSuccess {String} data.replies.content 回复的内容
* @apiSuccess {String[]} data.replies.ups 点赞数
* @apiSuccess {Object} data.replies.author 回帖作者信息
* @apiSuccess {String} data.replies.create_at 回帖时间
* @apiSuccess {String} data.replies.author.id 作者id
* @apiSuccess {String} data.replies.author.loginname 作者登陆名
* @apiError 404 The <code>id</code> of the Topic was not found.
*/
@Aop("redis")
@GET
@At("/topic/?")
public Object topic(String id, @Param("mdrender") String mdrender) {
Topic topic = dao.fetch(Topic.class, id);
if (id == null) {
return HttpStatusView.HTTP_404;
}
NutMap tp = _topic(topic, new HashMap<Integer, UserProfile>(), mdrender);
List<NutMap> replies = new ArrayList<NutMap>();
for (TopicReply reply :
dao.query(TopicReply.class, Cnd.where("topicId", "=", id).asc("createTime"))) {
dao.fetchLinks(reply, null);
reply.setUps(jedis().zrange(RKEY_REPLY_LIKE + reply.getId(), 0, System.currentTimeMillis()));
NutMap re = new NutMap();
re.put("id", reply.getId());
re.put("author", _author(reply.getAuthor()));
re.put(
"content",
"false".equals(mdrender)
? reply.getContent()
: Markdowns.toHtml(reply.getContent(), urlbase));
re.put("ups", new ArrayList<String>(reply.getUps()));
re.put("create_at", _time(reply.getCreateTime()));
replies.add(re);
}
tp.put("replies", replies);
jedis().zincrby(RKEY_TOPIC_VISIT, 1, topic.getId());
return _map("data", tp);
}
@Aop("redis")
public boolean updateTags(String topicId, @Param("tags") Set<String> tags) {
if (Strings.isBlank(topicId) || tags == null) {
return false;
}
Topic topic = dao.fetch(Topic.class, topicId);
if (topic == null) return false;
Set<String> oldTags = topic.getTags();
if (oldTags == null) oldTags = new HashSet<>();
log.debugf("update from '%s' to '%s'", oldTags, tags);
topic.setTags(tags);
dao.update(topic, "tags");
Set<String> newTags = new HashSet<>(tags);
newTags.removeAll(oldTags);
Set<String> removeTags = new HashSet<>(oldTags);
;
removeTags.remove(tags);
fillTopic(topic, null);
Date lastReplyTime = topic.getCreateTime();
if (topic.getLastComment() != null) lastReplyTime = topic.getLastComment().getCreateTime();
Pipeline pipe = jedis().pipelined();
for (String tag : removeTags) {
pipe.zrem(RKEY_TOPIC_TAG + tag.toLowerCase().trim(), topic.getId());
pipe.zincrby(RKEY_TOPIC_TAG_COUNT, -1, tag.toLowerCase().trim());
}
for (String tag : newTags) {
pipe.zadd(RKEY_TOPIC_TAG + tag.toLowerCase().trim(), lastReplyTime.getTime(), topic.getId());
pipe.zincrby(RKEY_TOPIC_TAG_COUNT, 1, tag.toLowerCase().trim());
}
pipe.sync();
return true;
}
@Async
protected void notifyUsers(Topic topic, TopicReply reply, String cnt, int userId) {
String replyAuthorName = dao.fetch(User.class, userId).getName();
// 通知原本的作者
if (topic.getUserId() != userId) {
String alert = replyAuthorName + "回复了您的帖子";
pushUser(
topic.getUserId(),
alert,
topic.getId(),
replyAuthorName,
topic.getTitle(),
PushService.PUSH_TYPE_REPLY);
}
Set<String> ats = findAt(cnt, 5);
for (String at : ats) {
User user = dao.fetch(User.class, at);
if (user == null) continue;
if (topic.getUserId() == user.getId()) continue; // 前面已经发过了
if (userId == user.getId()) continue; // 自己@自己, 忽略
String alert = replyAuthorName + "在帖子回复中@了你";
pushUser(
user.getId(),
alert,
topic.getId(),
replyAuthorName,
topic.getTitle(),
PushService.PUSH_TYPE_AT);
}
}
@Aop("redis")
public Object check(String topicId, int replies) {
Topic topic = dao.fetch(Topic.class, topicId);
if (topic == null) return "";
Double reply_count = jedis().zscore(RKEY_REPLY_COUNT, topicId);
if (reply_count == null) reply_count = Double.valueOf(0);
if (reply_count.intValue() == replies) {
return "";
}
String replyId = jedis().hget(RKEY_REPLY_LAST, topicId);
TopicReply reply = dao.fetch(TopicReply.class, replyId);
dao.fetchLinks(reply, null);
NutMap re = new NutMap().setv("count", reply_count.intValue());
re.put("data", reply.getAuthor().getNickname() + " 回复了帖子:" + topic.getTitle());
re.put("options", new NutMap().setv("tag", topicId));
return re;
}
/**
* @api {post} /yvr/api/v1/topics 发表帖子, 以json格式提交数据
* @apiGroup Topic
* @apiVersion 1.0.0
* @apiUse TOKEN
* @apiUse TOKEN_ERROR
* @apiParam {String} title 标题
* @apiParam {String} content 内容
* @apiParam {String} [tab=ask] 类型,默认为问答
* @apiSuccess {boolean} success 是否成功
* @apiSuccess {String} [topic_id] 成功时返回帖子的Id
* @apiSuccess {String} [message] 失败时返回原因
*/
@POST
@At("/topics")
@AdaptBy(type = WhaleAdaptor.class)
@Filters(@By(type = AccessTokenFilter.class))
public Object add(
@Param("..") Topic topic,
@Attr(scope = Scope.SESSION, value = "me") int userId,
@Param("tab") String tab) {
if (tab != null) topic.setType(TopicType.valueOf(tab));
CResult re = yvrService.add(topic, userId);
if (re.isOk()) {
return _map("success", true, "topic_id", re.as(String.class));
} else {
return _map("success", false, "message", re.getMsg());
}
}
@Aop("redis")
public CResult addReply(final String topicId, final TopicReply reply, final int userId) {
if (userId < 1) return _fail("请先登录");
if (reply == null || reply.getContent() == null || reply.getContent().trim().isEmpty()) {
return _fail("内容不能为空");
}
final String cnt = reply.getContent().trim();
final Topic topic = dao.fetch(Topic.class, topicId); // TODO 改成只fetch出type属性
if (topic == null) {
return _fail("主题不存在");
}
if (topic.isLock()) {
return _fail("该帖子已经锁定,不能回复");
}
reply.setTopicId(topicId);
reply.setUserId(userId);
reply.setContent(Toolkit.filteContent(reply.getContent()));
reply.setContentId(bigContentService.put(reply.getContent()));
reply.setContent(null);
dao.insert(reply);
// 更新索引
topicSearchService.add(topic);
// 更新topic的时间戳
Pipeline pipe = jedis().pipelined();
if (topic.isTop()) {
pipe.zadd(RKEY_TOPIC_TOP, reply.getCreateTime().getTime(), topicId);
} else {
pipe.zadd(RKEY_TOPIC_UPDATE + topic.getType(), reply.getCreateTime().getTime(), topicId);
pipe.zadd(RKEY_TOPIC_UPDATE_ALL, reply.getCreateTime().getTime(), topicId);
}
pipe.zrem(RKEY_TOPIC_NOREPLY, topicId);
if (topic.getTags() != null) {
for (String tag : topic.getTags()) {
pipe.zadd(
RKEY_TOPIC_TAG + tag.toLowerCase().trim(), reply.getCreateTime().getTime(), topicId);
}
}
pipe.hset(RKEY_REPLY_LAST, topicId, reply.getId());
pipe.zincrby(RKEY_REPLY_COUNT, 1, topicId);
pipe.zincrby(RKEY_USER_SCORE, 10, "" + userId);
pipe.sync();
notifyUsers(topic, reply, cnt, userId);
return _ok(reply.getId());
}
/** 全文输出 */
@At
@Ok("raw:xml")
public String rss() throws IOException, FeedException {
SyndFeed feed = new SyndFeedImpl();
feed.setFeedType("rss_2.0");
String urlbase = conf.get("website.urlbase", "https://nutz.cn");
feed.setLink(urlbase);
feed.setTitle(conf.get("website.title", "Nutz社区"));
feed.setDescription(conf.get("website.description", "一个有爱的社区"));
feed.setAuthor(conf.get("website.author", "wendal"));
feed.setEncoding("UTF-8");
feed.setLanguage("zh-cn");
List<SyndEntry> entries = new ArrayList<SyndEntry>();
SyndEntry entry;
SyndContent description;
List<Topic> list =
dao.query(Topic.class, Cnd.orderBy().desc("createTime"), dao.createPager(1, 10));
for (Topic topic : list) {
dao.fetchLinks(topic, "author");
entry = new SyndEntryImpl();
entry.setTitle(topic.getTitle());
entry.setLink(urlbase + "/yvr/t/" + topic.getId());
entry.setPublishedDate(topic.getCreateTime());
description = new SyndContentImpl();
description.setType("text/html");
description.setValue(Markdowns.toHtml(topic.getContent(), urlbase));
entry.setDescription(description);
entry.setAuthor(topic.getAuthor().getLoginname());
entries.add(entry);
}
feed.setEntries(entries);
if (list.size() > 0) {
feed.setPublishedDate(list.get(0).getCreateTime());
}
SyndFeedOutput output = new SyndFeedOutput();
return output.outputString(feed, true);
}
@Aop("redis")
public void fillTopic(Topic topic, Map<Integer, UserProfile> authors) {
if (topic.getUserId() == 0) topic.setUserId(1);
topic.setAuthor(_cacheFetch(authors, topic.getUserId()));
Double reply_count = jedis().zscore(RKEY_REPLY_COUNT, topic.getId());
topic.setReplyCount(reply_count == null ? 0 : reply_count.intValue());
if (topic.getReplyCount() > 0) {
String replyId = jedis().hget(RKEY_REPLY_LAST, topic.getId());
TopicReply reply = dao.fetch(TopicReply.class, replyId);
if (reply != null) {
if (reply.getUserId() == 0) reply.setUserId(1);
reply.setAuthor(_cacheFetch(authors, reply.getUserId()));
topic.setLastComment(reply);
}
}
Double visited = jedis().zscore(RKEY_TOPIC_VISIT, topic.getId());
topic.setVisitCount((visited == null) ? 0 : visited.intValue());
}
@Aop("redis")
public CResult add(Topic topic, int userId) {
if (userId < 1) {
return _fail("请先登录");
}
if (Strings.isBlank(topic.getTitle())
|| topic.getTitle().length() > 1024
|| topic.getTitle().length() < 5) {
return _fail("标题长度不合法");
}
if (Strings.isBlank(topic.getContent())) {
return _fail("内容不合法");
}
if (topic.getTags() != null && topic.getTags().size() > 10) {
return _fail("最多只能有10个tag");
}
if (0 != dao.count(Topic.class, Cnd.where("title", "=", topic.getTitle().trim()))) {
return _fail("相同标题已经发过了");
}
topic.setTitle(Strings.escapeHtml(topic.getTitle().trim()));
topic.setUserId(userId);
topic.setTop(false);
topic.setTags(new HashSet<String>());
if (topic.getType() == null) topic.setType(TopicType.ask);
topic.setContent(Toolkit.filteContent(topic.getContent()));
String oldContent = topic.getContent();
topic.setContentId(bigContentService.put(topic.getContent()));
topic.setContent(null);
dao.insert(topic);
try {
topic.setContent(oldContent);
topicSearchService.add(topic);
} catch (Exception e) {
}
// 如果是ask类型,把帖子加入到 "未回复"列表
Pipeline pipe = jedis().pipelined();
if (TopicType.ask.equals(topic.getType())) {
pipe.zadd(RKEY_TOPIC_NOREPLY, System.currentTimeMillis(), topic.getId());
}
pipe.zadd(RKEY_TOPIC_UPDATE + topic.getType(), System.currentTimeMillis(), topic.getId());
if (topic.getType() != TopicType.shortit)
pipe.zadd(RKEY_TOPIC_UPDATE_ALL, System.currentTimeMillis(), topic.getId());
pipe.zincrby(RKEY_USER_SCORE, 100, "" + userId);
pipe.sync();
String replyAuthorName = dao.fetch(User.class, userId).getName();
for (Integer watcherId : globalWatcherIds) {
if (watcherId != userId)
pushUser(
watcherId,
"新帖:" + topic.getTitle(),
topic.getId(),
replyAuthorName,
topic.getTitle(),
PushService.PUSH_TYPE_REPLY);
}
updateTopicTypeCount();
return _ok(topic.getId());
}
public NutMap _topic(Topic topic, Map<Integer, UserProfile> authors, String mdrender) {
yvrService.fillTopic(topic, authors);
NutMap tp = new NutMap();
tp.put("id", topic.getId());
tp.put("author_id", "" + topic.getAuthor().getUserId());
tp.put("tab", topic.getType().toString());
tp.put(
"content",
"false".equals(mdrender)
? topic.getContent()
: Markdowns.toHtml(topic.getContent(), urlbase));
tp.put("title", StringEscapeUtils.unescapeHtml(topic.getTitle()));
if (topic.getLastComment() != null)
tp.put("last_reply_at", _time(topic.getLastComment().getCreateTime()));
tp.put("good", topic.isGood());
tp.put("top", topic.isTop());
tp.put("reply_count", topic.getReplyCount());
tp.put("visit_count", topic.getVisitCount());
tp.put("create_at", _time(topic.getCreateTime()));
UserProfile profile = topic.getAuthor();
if (profile != null) {
profile.setScore(yvrService.getUserScore(topic.getUserId()));
}
tp.put("author", _author(profile));
return tp;
}
protected void _add(Topic topic) {
if (topic == null) return; // 虽然不太可能,还是预防一下吧
// 暂时不索引评论
dao.fetchLinks(topic, "replies");
Document document;
document = new Document();
Field field;
FieldType fieldType;
// 先加入id
fieldType = new FieldType();
fieldType.setIndexed(true); // 索引
fieldType.setStored(true); // 存储
fieldType.setStoreTermVectors(true);
fieldType.setTokenized(true);
fieldType.setStoreTermVectorPositions(true); // 存储位置
fieldType.setStoreTermVectorOffsets(true); // 存储偏移量
field = new Field("id", topic.getId(), fieldType);
document.add(field);
// 加入标题
fieldType = new FieldType();
fieldType.setIndexed(true); // 索引
fieldType.setStored(true); // 存储
fieldType.setStoreTermVectors(true);
fieldType.setTokenized(true);
fieldType.setStoreTermVectorPositions(true); // 存储位置
fieldType.setStoreTermVectorOffsets(true); // 存储偏移量
field = new Field("title", topic.getTitle(), fieldType);
document.add(field);
// 加入文章内容
fieldType = new FieldType();
fieldType.setIndexed(true); // 索引
fieldType.setStored(false); // 存储
fieldType.setStoreTermVectors(true);
fieldType.setTokenized(true);
fieldType.setStoreTermVectorPositions(true); // 存储位置
fieldType.setStoreTermVectorOffsets(true); // 存储偏移量
field = new Field("content", topic.getContent(), fieldType);
document.add(field);
StringBuilder sb = new StringBuilder();
if (topic.getReplies() != null) {
for (TopicReply reply : topic.getReplies()) {
if (reply == null) continue;
bigContentService.fill(reply);
if (reply.getContent() != null) {
if (sb.length() + reply.getContent().length() > (IndexWriter.MAX_TERM_LENGTH / 3)) {
break;
}
sb.append(reply.getContent());
}
}
}
fieldType = new FieldType();
fieldType.setIndexed(true); // 索引
fieldType.setStored(false); // 存储
fieldType.setStoreTermVectors(true);
fieldType.setTokenized(true);
fieldType.setStoreTermVectorPositions(true); // 存储位置
fieldType.setStoreTermVectorOffsets(true); // 存储偏移量
field = new Field("reply", sb.toString(), fieldType);
document.add(field);
try {
luceneIndex.writer.addDocument(document);
} catch (IOException e) {
log.debug("add to index fail : id=" + topic.getId());
} catch (Error e) {
log.debug("add to index fail : id=" + topic.getId());
}
}