/**
* show the contents of the view
*/
function render()
{
// load the comments and throw the correct event
$comments = new ArticleComments();
$postComments = $comments->getPostComments($this->_article->getId(), COMMENT_ORDER_NEWEST_FIRST, $this->_commentStatus, $this->_page, DEFAULT_ITEMS_PER_PAGE);
$this->notifyEvent(EVENT_COMMENTS_LOADED, array("comments", &$postComments));
// number of comments
$numPostComments = $comments->getNumPostComments($this->_article->getId(), $this->_commentStatus);
if ($this->_commentStatus > -1) {
$pagerUrl = "?op=editComments&articleId=" . $this->_article->getId() . "&showStatus=" . $this->_commentStatus . "&page=";
} else {
$pagerUrl = "?op=editComments&articleId=" . $this->_article->getId() . "&page=";
}
// calculate the pager url
$pager = new Pager($pagerUrl, $this->_page, $numPostComments, DEFAULT_ITEMS_PER_PAGE);
// get a list with all the different comment status
$statusList = ArticleCommentStatus::getStatusList(true);
// and pass all the information to the templates
$this->setValue("comments", $postComments);
$this->setValue("commentstatus", $statusList);
$this->setValue("currentstatus", $this->_commentStatus);
// pass the pager to the view
$this->setValue("pager", $pager);
+$this->setValue("post", $this->_article);
parent::render();
}
/**
* cleans up spam comments. Returns true if successful or false otheriwse
*/
function cleanupComments()
{
$comments = new ArticleComments();
$comments->purgeSpamComments();
$this->_message = $this->_locale->tr("spam_comments_purged_ok");
return true;
}
/**
* Returns the recent comments object of current blog
*/
function getRecentComments($maxComments = 0, $based = 'BLOG')
{
$comments = new ArticleComments();
$blogId = $this->blogInfo->getId();
if ($based == 'BLOG') {
$query = "SELECT " . $this->prefix . "articles_comments.* FROM " . $this->prefix . "articles_comments, " . $this->prefix . "articles";
$query .= " WHERE " . $this->prefix . "articles_comments.article_id = " . $this->prefix . "articles.id AND " . $this->prefix . "articles.blog_id = " . $blogId . " AND " . $this->prefix . "articles.status=1";
$query .= " AND " . $this->prefix . "articles_comments.status = 0";
$query .= " ORDER BY " . $this->prefix . "articles_comments.date DESC";
} elseif ($based == 'SITE') {
$query = "SELECT " . $this->prefix . "articles_comments.* FROM " . $this->prefix . "articles_comments, " . $this->prefix . "articles";
$query .= " WHERE " . $this->prefix . "articles_comments.article_id = " . $this->prefix . "articles.id AND " . $this->prefix . "articles.status=1";
$query .= " AND " . $this->prefix . "articles_comments.status = 0";
$query .= " ORDER BY " . $this->prefix . "articles_comments.date DESC";
} else {
return false;
}
if ($maxComments > 0) {
$query .= " LIMIT " . $maxComments;
} else {
$query .= " LIMIT " . $this->maxComments;
}
$result = $comments->_db->Execute($query);
if (!$result) {
return false;
}
$recentcomments = array();
while ($row = $result->FetchRow()) {
array_push($recentcomments, $comments->_fillCommentInformation($row));
}
return $recentcomments;
}
function perform()
{
// fetch the data and make some arrangements if needed
$this->_parentId = $this->_request->getValue("parentId");
$this->_articleId = $this->_request->getValue("articleId");
if ($this->_parentId < 0 || $this->_parentId == "") {
$this->_parentId = 0;
}
// check if comments are enabled
$blogSettings = $this->_blogInfo->getSettings();
if (!$blogSettings->getValue("comments_enabled")) {
$this->_view = new ErrorView($this->_blogInfo, "error_comments_not_enabled");
$this->setCommonData();
return false;
}
// fetch the article
$blogs = new Blogs();
$articles = new Articles();
$article = $articles->getBlogArticle($this->_articleId, $this->_blogInfo->getId());
// if there was a problem fetching the article, we give an error and quit
if ($article == false) {
$this->_view = new ErrorView($this->_blogInfo);
$this->_view->setValue("message", "error_fetching_article");
$this->setCommonData();
return false;
}
$this->_view = new BlogView($this->_blogInfo, "commentarticle", SMARTY_VIEW_CACHE_CHECK, array("articleId" => $this->_articleId, "parentId" => $this->_parentId));
// do nothing if the view was already cached
if ($this->_view->isCached()) {
return true;
}
// fetch the comments so far
$comments = new ArticleComments();
$postComments = $comments->getPostComments($article->getId());
if ($this->_parentId > 0) {
// get a pre-set string for the subject field, for those users interested
$comment = $comments->getPostComment($article->getId(), $this->_parentId);
// create the string
if ($comment) {
$replyString = $this->_locale->tr("reply_string") . $comment->getTopic();
$this->_view->setValue("comment", $comment);
}
}
// if everything's fine, we set up the article object for the view
$this->_view->setValue("post", $article);
$this->_view->setValue("parentId", $this->_parentId);
$this->_view->setValue("comments", $postComments);
$this->_view->setValue("postcomments", $postComments);
$this->_view->setValue("topic", $replyString);
$this->setCommonData();
// and return everything normal
return true;
}
/**
* Processes incoming requests
*
* @return A positive PipelineResult object is the comment is not spam or a negative
* one if it is.
*/
function filter()
{
$config =& Config::getConfig();
if (!$config->getValue("bayesian_filter_enabled")) {
return new PipelineResult(true);
}
// get some info
$blogInfo = $this->_pipelineRequest->getBlogInfo();
$request = $this->_pipelineRequest->getHttpRequest();
// we only have to filter the contents if the user is posting a comment
// so there's no point in doing anything else if that's not the case
if ($request->getValue("op") != "AddComment") {
$result = new PipelineResult();
return $result;
}
// text and topic of the comment
$commentText = $request->getValue("commentText");
$commentTopic = $request->getValue("commentTopic");
$userName = $request->getValue("userName");
$userEmail = $request->getValue("userEmail");
$userUrl = $request->getValue("userUrl");
$articleId = $request->getValue("articleId");
$parentId = $request->getValue("parentId");
if ($parentId == "") {
$parentId = 0;
}
$spamicity = $this->getSpamProbability($blogInfo->getId(), $commentTopic, $commentText, $userName, $userEmail, $userUrl);
if ($spamicity >= $config->getValue("bayesian_filter_spam_probability_treshold")) {
$result = new PipelineResult(false, HIGH_SPAM_PROBABILITY, "You cannot post this message. Anti-spam filter has blocked it.");
// now we need to check what we have to do with this comment... either throw it away
// or keep it in the database
// this piece of code shouldn't really go here, but it's easier than letting
// the AddComment action that there was actually a comment and that it should
// still be added but marked as spam and so on... sometimes breaking a few
// rules makes things easier :)
if ($config->getValue("bayesian_filter_spam_comments_action") == BAYESIAN_FILTER_KEEP_COMMENT_ACTION) {
$comments = new ArticleComments();
$clientIp = Client::getIp();
$comment = new UserComment($articleId, $parentId, $commentTopic, $commentText, null, $userName, $userEmail, $userUrl, $clientIp, 0, COMMENT_STATUS_SPAM);
$comments->addComment($comment);
} else {
// nothing to do here, simply throw the comment away
}
$spam = true;
} else {
$result = new PipelineResult(true);
$spam = false;
}
// train the filter with the message, be it spam or not...
BayesianFilterCore::train($blogInfo->getId(), $commentTopic, $commentText, $userName, $userEmail, $userUrl, $spam);
//print "<h1>" . number_format($spamicity * 100, 0) . "% of spamicity</h1>";
return $result;
}
/**
* deletes comments
* @private
*/
function _deleteComments()
{
$comments = new ArticleComments();
$errorMessage = "";
$successMessage = "";
$totalOk = 0;
// if we can't even load the article, then forget it...
$articles = new Articles();
$article = $articles->getBlogArticle($this->_articleId, $this->_blogInfo->getId());
if (!$article) {
$this->_view = new AdminPostsListView($this->_blogInfo);
$this->_view->setErrorMessage($this->_locale->tr("error_fetching_post"));
$this->setCommonData();
return false;
}
// loop through the comments and remove them
foreach ($this->_commentIds as $commentId) {
// fetch the comment
$comment = $comments->getPostComment($this->_articleId, $commentId);
if (!$comment) {
$errorMessage .= $this->_locale->pr("error_deleting_comment2", $commentId);
} else {
// fire the pre-event
$this->notifyEvent(EVENT_PRE_COMMENT_DELETE, array("comment" => &$comment));
if (!$comments->deletePostComment($article->getId(), $commentId)) {
$errorMessage .= $this->_locale->pr("error_deleting_comment", $comment->getTopic()) . "<br/>";
} else {
$totalOk++;
if ($totalOk < 2) {
$successMessage .= $this->_locale->pr("comment_deleted_ok", $comment->getTopic()) . "<br/>";
} else {
$successMessage = $this->_locale->pr("comments_deleted_ok", $totalOk);
}
// fire the post-event
$this->notifyEvent(EVENT_POST_COMMENT_DELETE, array("comment" => &$comment));
}
}
}
// if everything fine, then display the same view again with the feedback
$this->_view = new AdminArticleCommentsListView($this->_blogInfo, array("article" => $article));
if ($successMessage != "") {
$this->_view->setSuccessMessage($successMessage);
// clear the cache
CacheControl::resetBlogCache($this->_blogInfo->getId());
}
if ($errorMessage != "") {
$this->_view->setErrorMessage($errorMessage);
}
$this->setCommonData();
// better to return true if everything fine
return true;
}
/**
* normally views do not meddle with data but in this case moving all
* this data fetching here is benefitial from a coding point of view, because it
* allows this code to be reused by several action classes... In the worst case
* we would have to copy+paste the code or put in a separate class only for this bit
* of code. By moving it here, the view itself can handle everything
*/
function _loadViewData()
{
// for each blog, load some statistics
$articles = new Articles();
$comments = new ArticleComments();
$trackbacks = new Trackbacks();
$resources = new GalleryResources();
$recentPosts = array();
$recentComments = array();
$recentResources = array();
// load some statistics for each one of the blogs
foreach ($this->_userBlogs as $userBlog) {
$recentPosts[$userBlog->getId()] = $articles->getBlogArticles($userBlog->getId(), -1, DASHBOARD_MAX_RECENT_ITEMS, 0, POST_STATUS_PUBLISHED);
$recentComments[$userBlog->getId()] = $comments->getBlogComments($userBlog->getId(), DASHBOARD_MAX_RECENT_ITEMS);
$recentTrackbacks[$userBlog->getId()] = $trackbacks->getBlogTrackbacks($userBlog->getId(), DASHBOARD_MAX_RECENT_ITEMS);
}
$this->_params->setValue("userblogs", $this->_userBlogs);
$this->_params->setValue("recentposts", $recentPosts);
$this->_params->setValue("recentcomments", $recentComments);
$this->_params->setValue("recenttrackbacks", $recentTrackbacks);
}
function _addComment($data, $_debug)
{
if ($data["article_id"] == NULL) {
$data["article_id"] = 1;
}
if ($data["parent_id"] == NULL) {
$data["parent_id"] = 0;
}
if ($data["topic"] == NULL) {
$data["topic"] = "No Topic";
}
if ($data["text"] == NULL) {
$data["text"] = "No Comment";
}
if ($data["date"] == NULL) {
$data["date"] = now();
}
if ($data["user_name"] == NULL) {
$data["user_name"] = "";
}
if ($data["user_email"] == NULL) {
$data["user_email"] = "";
}
if ($data["user_url"] == NULL) {
$data["user_url"] = "";
}
if ($data["client_ip"] == NULL) {
$data["client_ip"] = "0.0.0.0";
}
$coms = new ArticleComments();
$com = $coms->getPostComments($data["article_id"]);
if ($com) {
foreach ($com as $artcom) {
if ($artcom->getText() == $data["text"]) {
if ($_debug) {
print "--- --- comment already exists, abort.<br />\n\r";
}
return $artcom->getId();
}
}
}
//(article_id, `topic`, `text`, `date`, user_email, user_url, user_name, client_ip)
$com = new UserComment($data["article_id"], $data["parent_id"], $data["topic"], $data["text"], $data["date"], $data["user_name"], $data["user_email"], $data["user_url"], $data["client_ip"]);
$comments = new ArticleComments();
$comment_id = $comments->addComment($com);
$this->_stats["comments"]["write"]++;
return $comment_id;
}
/**
* @private
*/
function _markCommentAsNonSpam()
{
// throw the pre-event
$this->notifyEvent(EVENT_PRE_MARK_NO_SPAM_COMMENT, array("commentId" => $this->_commentId));
$this->_view = new AdminArticleCommentsListView($this->_blogInfo, array("article" => $this->_article));
$comments = new ArticleComments();
if (!$comments->updateCommentStatus($this->_commentId, COMMENT_STATUS_NONSPAM)) {
$this->_view->setErrorMessage($this->_locale->tr("error_marking_comment_as_nonspam"));
$this->setCommonData();
$res = false;
} else {
$this->_view->setSuccessMessage($this->_locale->tr("comment_marked_as_nonspam_ok"));
$this->setCommonData();
$res = true;
// before exiting, we should get the comment and train the filter
// to recognize this as spam...
$comment = $comments->getPostComment($this->_articleId, $this->_commentId);
$bayesian = new BayesianFilterCore();
$bayesian->untrain($this->_blogInfo->getId(), $comment->getTopic(), $comment->getText(), $comment->getUserName(), $comment->getUserEmail(), $comment->getUserUrl(), true);
$bayesian->train($this->_blogInfo->getId(), $comment->getTopic(), $comment->getText(), $comment->getUserName(), $comment->getUserEmail(), $comment->getUserUrl(), false);
// throw the post-event if everythign went fine
$this->notifyEvent(EVENT_POST_MARK_NO_SPAM_COMMENT, array("commentId" => $this->_commentId));
}
return $res;
}
/**
* Returns an array of UserComment objects, with all the comments that have been received for
* this article.
*
* @param onlyActive return only those comments that are not marked as spam
* @return An array of UserComment objects.
* @see UserComment
*/
function getComments($onlyActive = true)
{
// load the comments if they haven't been loaded yet
if ($this->_comments == null) {
$userComments = new ArticleComments();
$blogSettings = $this->_blogInfo->getSettings();
$this->setComments($userComments->getPostComments($this->getId(), $blogSettings->getValue('comments_order'), COMMENT_STATUS_ALL));
}
// if we only want to return the active ones, then we have to loop through
// the array once more
if ($onlyActive) {
$comments = array();
foreach ($this->_comments as $comment) {
if ($comment->getStatus() == COMMENT_STATUS_NONSPAM) {
$comments[] = $comment;
}
}
} else {
$comments = $this->_comments;
}
return $comments;
}
/**
* Carries out the action
*/
function perform()
{
// need to check the ip of the client
$clientIp = Client::getIp();
// fetch the same article again so that we can have all the comments from
// the database, plus this last one
$articles = new Articles();
$article = $articles->getBlogArticle($this->_articleId, $this->_blogInfo->getId());
// check if the user wanted to receive comments for this article
// or not...
if ($article->getCommentsEnabled() == false) {
$this->_view = new ErrorView($this->_blogInfo);
$this->_view->setValue("message", "Comments have been disabled for this article.");
$this->setCommonData();
return false;
}
$this->notifyEvent(EVENT_POST_LOADED, array("article" => &$article));
// we have already checked all the data, so we are sure that everything's in place
$comments = new ArticleComments();
$comment = new UserComment($this->_articleId, $this->_parentId, $this->_commentTopic, $this->_commentText, null, $this->_userName, $this->_userEmail, $this->_userUrl, $clientIp);
// check if there is already a comment with the same text, topic and made from the same
// IP already in the database because if so, then we will not add the comment that
// the user is trying to add (a reload button mistake, perhaps?)
if (!$comments->getIdenticalComment($this->_commentTopic, $this->_commentText, $this->_articleId, $this->_parentId, $this->_userName, $this->_userEmail, $this->_userUrl, $clientIp)) {
// fire an event
$this->notifyEvent(EVENT_PRE_COMMENT_ADD, array("comment" => &$comment));
if (!$comments->addComment($comment)) {
// show an error message if problems
$this->_view = new ErrorView($this->_blogInfo);
$this->_view->setValue("message", "error_adding_comment");
$this->setCommonData();
return false;
}
}
// finally, check if there was any user who wanted to be notified of new comments
// to this post...
$notifier = new ArticleNotifications();
$notifier->notifyUsers($article->getId(), $this->_blogInfo);
// fire the post event...
$this->notifyEvent(EVENT_POST_COMMENT_ADD, array("comment" => &$comment));
//
// clear caches. This should be done in a more granular way, because right now
// we're either removing *all* of them or none. I guess we should only remove the
// cache whose identifier corresponds with the blog and article that we just removed,
// but let's leave it as it is for the time being...
//
CacheControl::resetBlogCache($this->_blogInfo->getId());
// clean up the request, there's a parameter called 'userName' also used by
// ViewArticleAction but that doesn't have the same meaning so we better remove it
// before it's too late! We also need to add a new request commentUserName to replace
// original userName, in case developer need it in filter or event plugin.
$request = HttpVars::getRequest();
$request["commentUserName"] = $request["userName"];
$request["userName"] = "";
HttpVars::setRequest($request);
// forward the action to ViewArticleAction
return BlogController::setForwardAction("ViewArticle");
}
/**
* Removes an article from the database
*
* If forever == true, the article is physically removed from the database.
* Otherwise, the 'status' field is set to 'deleted'
*
* Problem is, that MySQL will automatically update the 'date' field because he feels
* like it... even if we explicitely say date = old_date... grrreat :P
*
* Valid article identifier, blog identifier and user identifier are required to remove an
* article. It was done for security reasons and to make perfectly clear that we are removing
* an article (so that we wouldn't be deleting the wrong one if there was any bug!)
*
* @param artId A valid article identifier
* @param userid A valid user identifier
* @param blogId A valid blog identifier
* @param forever A boolean meaning whether the post should be removed forever or simply its status
* should be set to 'deleted'
* @return Returns true if successful or false otherwise.
*/
function deleteArticle($artId, $userId, $blogId, $forever = false)
{
if ($forever) {
$query = "DELETE FROM " . $this->getPrefix() . "articles WHERE id = " . $artId . " AND user_id = " . $userId . " AND blog_id = " . $blogId . ";";
// -- text --
$this->deleteArticleText($artId);
// we also have to remove its comments and trackbacks if the article is being deleted forever
// -- comments --
$comments = new ArticleComments();
$comments->deletePostComments($artId);
// -- trackbacks --
$trackbacks = new Trackbacks();
$trackbacks->deletePostTrackbacks($artId);
// -- post-to-categories mappings --
$this->deletePostCategoriesLink($artId);
// -- custom fields --
$customFields = new CustomFieldsValues();
$customFields->removeArticleCustomFields($artId);
} else {
$query = "UPDATE " . $this->getPrefix() . "articles SET date = date, status = 3 WHERE id = " . $artId . " AND user_id = " . $userId . " AND blog_id = " . $blogId . ";";
}
$result = $this->Execute($query);
if (!$result) {
return false;
}
if ($this->_db->Affected_Rows() == 0) {
return false;
}
return true;
}