Gazelle/sections/ajax/forum/thread.php
2012-06-16 08:00:18 +00:00

262 lines
8.1 KiB
PHP

<?
authorize(true);
//TODO: Normalize thread_*_info don't need to waste all that ram on things that are already in other caches
/**********|| Page to show individual threads || ********************************\
Things to expect in $_GET:
ThreadID: ID of the forum curently being browsed
page: The page the user's on.
page = 1 is the same as no page
********************************************************************************/
//---------- Things to sort out before it can start printing/generating content
include(SERVER_ROOT.'/classes/class_text.php');
$Text = new TEXT;
// Check for lame SQL injection attempts
if(!isset($_GET['threadid']) || !is_number($_GET['threadid'])) {
if(isset($_GET['topicid']) && is_number($_GET['topicid'])) {
$ThreadID = $_GET['topicid'];
}
elseif(isset($_GET['postid']) && is_number($_GET['postid'])) {
$DB->query("SELECT TopicID FROM forums_posts WHERE ID = $_GET[postid]");
list($ThreadID) = $DB->next_record();
if($ThreadID) {
header("Location: ajax.php?action=forum&type=viewthread&threadid=$ThreadID&postid=$_GET[postid]");
die();
} else {
print json_encode(array('status' => 'failure'));
die();
}
} else {
print json_encode(array('status' => 'failure'));
die();
}
} else {
$ThreadID = $_GET['threadid'];
}
if (isset($_GET['pp'])) {
$PerPage = $_GET['pp'];
}
else if (isset($LoggedUser['PostsPerPage'])) {
$PerPage = $LoggedUser['PostsPerPage'];
} else {
$PerPage = POSTS_PER_PAGE;
}
//---------- Get some data to start processing
// Thread information, constant across all pages
$ThreadInfo = get_thread_info($ThreadID, true, true);
$ForumID = $ThreadInfo['ForumID'];
// Make sure they're allowed to look at the page
if(!check_forumperm($ForumID)) {
print json_encode(array('status' => 'failure'));
die();
}
//Post links utilize the catalogue & key params to prevent issues with custom posts per page
if($ThreadInfo['Posts'] > $PerPage) {
if(isset($_GET['post']) && is_number($_GET['post'])) {
$PostNum = $_GET['post'];
} elseif(isset($_GET['postid']) && is_number($_GET['postid'])) {
$DB->query("SELECT COUNT(ID) FROM forums_posts WHERE TopicID = $ThreadID AND ID <= $_GET[postid]");
list($PostNum) = $DB->next_record();
} else {
$PostNum = 1;
}
} else {
$PostNum = 1;
}
list($Page,$Limit) = page_limit($PerPage, min($ThreadInfo['Posts'],$PostNum));
list($CatalogueID,$CatalogueLimit) = catalogue_limit($Page,$PerPage,THREAD_CATALOGUE);
// Cache catalogue from which the page is selected, allows block caches and future ability to specify posts per page
if(!$Catalogue = $Cache->get_value('thread_'.$ThreadID.'_catalogue_'.$CatalogueID)) {
$DB->query("SELECT
p.ID,
p.AuthorID,
p.AddedTime,
p.Body,
p.EditedUserID,
p.EditedTime
FROM forums_posts as p
WHERE p.TopicID = '$ThreadID' AND p.ID != '".$ThreadInfo['StickyPostID']."'
LIMIT $CatalogueLimit");
$Catalogue = $DB->to_array(false,MYSQLI_ASSOC);
if (!$ThreadInfo['IsLocked'] || $ThreadInfo['IsSticky']) {
$Cache->cache_value('thread_'.$ThreadID.'_catalogue_'.$CatalogueID, $Catalogue, 0);
}
}
$Thread = catalogue_select($Catalogue,$Page,$PerPage,THREAD_CATALOGUE);
$LastPost = end($Thread);
$LastPost = $LastPost['ID'];
reset($Thread);
if ($_GET['updatelastread'] != '0') {
//Handle last read
if (!$ThreadInfo['IsLocked'] || $ThreadInfo['IsSticky']) {
$DB->query("SELECT PostID From forums_last_read_topics WHERE UserID='$LoggedUser[ID]' AND TopicID='$ThreadID'");
list($LastRead) = $DB->next_record();
if($LastRead < $LastPost) {
$DB->query("INSERT INTO forums_last_read_topics
(UserID, TopicID, PostID) VALUES
('$LoggedUser[ID]', '".$ThreadID ."', '".db_string($LastPost)."')
ON DUPLICATE KEY UPDATE PostID='$LastPost'");
}
}
}
//Handle subscriptions
if(($UserSubscriptions = $Cache->get_value('subscriptions_user_'.$LoggedUser['ID'])) === FALSE) {
$DB->query("SELECT TopicID FROM users_subscriptions WHERE UserID = '$LoggedUser[ID]'");
$UserSubscriptions = $DB->collect(0);
$Cache->cache_value('subscriptions_user_'.$LoggedUser['ID'],$UserSubscriptions,0);
}
if(empty($UserSubscriptions)) {
$UserSubscriptions = array();
}
if(in_array($ThreadID, $UserSubscriptions)) {
$Cache->delete_value('subscriptions_user_new_'.$LoggedUser['ID']);
}
$JsonPoll = array();
if ($ThreadInfo['NoPoll'] == 0) {
if (!list($Question,$Answers,$Votes,$Featured,$Closed) = $Cache->get_value('polls_'.$ThreadID)) {
$DB->query("SELECT Question, Answers, Featured, Closed FROM forums_polls WHERE TopicID='".$ThreadID."'");
list($Question, $Answers, $Featured, $Closed) = $DB->next_record(MYSQLI_NUM, array(1));
$Answers = unserialize($Answers);
$DB->query("SELECT Vote, COUNT(UserID) FROM forums_polls_votes WHERE TopicID='$ThreadID' GROUP BY Vote");
$VoteArray = $DB->to_array(false, MYSQLI_NUM);
$Votes = array();
foreach ($VoteArray as $VoteSet) {
list($Key,$Value) = $VoteSet;
$Votes[$Key] = $Value;
}
foreach(array_keys($Answers) as $i) {
if (!isset($Votes[$i])) {
$Votes[$i] = 0;
}
}
$Cache->cache_value('polls_'.$ThreadID, array($Question,$Answers,$Votes,$Featured,$Closed), 0);
}
if (!empty($Votes)) {
$TotalVotes = array_sum($Votes);
$MaxVotes = max($Votes);
} else {
$TotalVotes = 0;
$MaxVotes = 0;
}
$RevealVoters = in_array($ForumID, $ForumsRevealVoters);
//Polls lose the you voted arrow thingy
$DB->query("SELECT Vote FROM forums_polls_votes WHERE UserID='".$LoggedUser['ID']."' AND TopicID='$ThreadID'");
list($UserResponse) = $DB->next_record();
if (!empty($UserResponse) && $UserResponse != 0) {
$Answers[$UserResponse] = '&raquo; '.$Answers[$UserResponse];
} else {
if(!empty($UserResponse) && $RevealVoters) {
$Answers[$UserResponse] = '&raquo; '.$Answers[$UserResponse];
}
}
$JsonPoll['closed'] = $Closed == 1;
$JsonPoll['featured'] = $Featured;
$JsonPoll['question'] = $Question;
$JsonPoll['maxVotes'] = (int) $MaxVotes;
$JsonPoll['totalVotes'] = $TotalVotes;
$JsonPollAnswers = array();
foreach($Answers as $i => $Answer) {
if (!empty($Votes[$i]) && $TotalVotes > 0) {
$Ratio = $Votes[$i]/$MaxVotes;
$Percent = $Votes[$i]/$TotalVotes;
} else {
$Ratio=0;
$Percent=0;
}
$JsonPollAnswers[] = array(
'answer' => $Answer,
'ratio' => $Ratio,
'percent' => $Percent
);
}
if ($UserResponse !== null || $Closed || $ThreadInfo['IsLocked'] || $LoggedUser['Class'] < $Forums[$ForumID]['MinClassWrite']) {
$JsonPoll['voted'] = True;
} else {
$JsonPoll['voted'] = False;
}
$JsonPoll['answers'] = $JsonPollAnswers;
}
//Sqeeze in stickypost
if($ThreadInfo['StickyPostID']) {
if($ThreadInfo['StickyPostID'] != $Thread[0]['ID']) {
array_unshift($Thread, $ThreadInfo['StickyPost']);
}
if($ThreadInfo['StickyPostID'] != $Thread[count($Thread)-1]['ID']) {
$Thread[] = $ThreadInfo['StickyPost'];
}
}
$JsonPosts = array();
foreach ($Thread as $Key => $Post) {
list($PostID, $AuthorID, $AddedTime, $Body, $EditedUserID, $EditedTime) = array_values($Post);
list($AuthorID, $Username, $PermissionID, $Paranoia, $Artist, $Donor, $Warned, $Avatar, $Enabled, $UserTitle) = array_values(user_info($AuthorID));
$UserInfo = user_info($EditedUserID);
$JsonPosts[] = array(
'postId' => (int) $PostID,
'addedTime' => $AddedTime,
'body' => $Text->full_format($Body),
'editedUserId' => (int) $EditedUserID,
'editedTime' => $EditedTime,
'editedUsername' => $UserInfo['Username'],
'author' => array(
'authorId' => (int) $AuthorID,
'authorName' => $Username,
'paranoia' => $Paranoia,
'artist' => $Artist == 1,
'donor' => $Donor == 1,
'warned' => ($Warned!='0000-00-00 00:00:00'),
'avatar' => $Avatar,
'enabled' => $Enabled == 2 ? false : true,
'userTitle' => $UserTitle
),
);
}
print
json_encode(
array(
'status' => 'success',
'response' => array(
'forumId' => (int) $ForumID,
'forumName' => $Forums[$ForumID]['Name'],
'threadId' => (int) $ThreadID,
'threadTitle' => display_str($ThreadInfo['Title']),
'subscribed' => in_array($ThreadID, $UserSubscriptions),
'locked' => $ThreadInfo['IsLocked'] == 1,
'sticky' => $ThreadInfo['IsSticky'] == 1,
'currentPage' => (int) $Page,
'pages' => ceil($ThreadInfo['Posts']/$PerPage),
'poll' => empty($JsonPoll) ? null : $JsonPoll,
'posts' => $JsonPosts
)
)
);