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getpostlist.php
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<?php
//IMathAS: New threads and messages list for a course using remoteaccess code
//for mobile access w/o logging in
//(c) 2009 David Lippman
$init_skip_csrfp = true;
require("init_without_validate.php");
$keyString = Sanitize::simpleString($_GET['key']);
if (!empty($_COOKIE['remoteaccess']) && strlen($_COOKIE['remoteaccess'])==10) {
$keyString = Sanitize::simpleString($_COOKIE['remoteaccess']);
} else if (empty($keyString) || strlen(trim($keyString))!=10) {
echo "Key Error";
setcookie('remoteaccess',$keyString, time()+60*60*24*30*365*10,'','',true,true);
exit;
} else {
//setcookie('remoteaccess',$keyString, time()+60*60*24*30*365*10,'','',true,true);
}
//look up user
$stm = $DBH->prepare("SELECT id FROM imas_users WHERE remoteaccess=:remoteaccess");
$stm->execute(array(':remoteaccess'=>$keyString));
if ($stm->rowCount()==0) {
echo "Access key invalid";
exit;
}
$userid = $stm->fetchColumn(0);
$tzoffset = Sanitize::onlyInt($_GET['tzoffset']);
$now = time();
function tzdate($string,$time) {
global $tzoffset;
//$dstoffset = date('I',time()) - date('I',$time);
//return gmdate($string, $time-60*($tzoffset+60*$dstoffset));
$serveroffset = date('Z') + $tzoffset*60;
return date($string, $time-$serveroffset);
//return gmdate($string, $time-60*$tzoffset);
}
function formatdate($date) {
return date("D n/j/y, g:i a",$date);
//return tzdate("D n/j/y, g:i a",$date);
//return tzdate("M j, Y, g:i a",$date);
}
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past
?><!DOCTYPE html>
<html>
<head>
<meta name = "viewport" content = "width = device-width">
<title><?php echo $installname;?> Posts and Messages</title>
</head>
<body>
<div style="font-weight: bold"><?php echo $installname;?> Posts and Messages</div>
<div style="color: gray; font-size: 80%">Last updated <?php echo formatdate(time());?> <a href="javascript:location.reload(true)">Refresh</a></div>
<?php
$courseforums = array();
$forumthreads = array();
$forumname = array();
$lastpost = array();
$forumcourse = array();
if ($_GET['limit'] != 'take') {//teach or all
$query = "SELECT imas_forums.courseid, imas_forums.name, imas_forums.id, imas_forum_threads.id as tid, imas_forum_threads.lastposttime FROM imas_forum_threads ";
$query .= "JOIN imas_forums ON imas_forum_threads.forumid=imas_forums.id ";
$query .= "JOIN imas_teachers ON imas_forums.courseid=imas_teachers.courseid AND imas_teachers.userid=:userid ";
$query .= "LEFT JOIN imas_forum_views as mfv ON mfv.threadid=imas_forum_threads.id AND mfv.userid=:useridB ";
$query .= "WHERE (imas_forum_threads.lastposttime>mfv.lastview OR (mfv.lastview IS NULL)) ";
$query .= "ORDER BY imas_forum_threads.lastposttime DESC LIMIT 30";
$stm = $DBH->prepare($query);
$stm->execute(array(':userid'=>$userid, ':useridB'=>$userid));
while ($line = $stm->fetch(PDO::FETCH_ASSOC)) {
if (!isset($courseforums[$line['courseid']])) {
$courseforums[$line['courseid']] = array();
}
if (!isset( $forumthreads[$line['id']])) {
$forumthreads[$line['id']]= array();
}
//add forum to courseforums list if not already there
if (!in_array($line['id'], $courseforums[$line['courseid']])) {
$courseforums[$line['courseid']][] = $line['id'];
}
$forumcourse[$line['id']] = $line['courseid'];
//add thread to forumthreads list if not already there
if (!in_array($line['tid'], $forumthreads[$line['id']])) {
$forumthreads[$line['id']][] = $line['tid'];
}
$forumname[$line['id']] = Sanitize::stripHtmlTags($line['name']);
$lastpost[$line['tid']] = formatdate($line['lastposttime']);
}
}
if ($_GET['limit'] != 'teach') { //take or all
$query = "SELECT imas_forums.courseid, imas_forums.name, imas_forums.id, imas_forum_threads.id as tid, imas_forum_threads.lastposttime FROM imas_forum_threads ";
$query .= "JOIN imas_forums ON imas_forum_threads.forumid=imas_forums.id ";
$query .= "JOIN imas_students ON imas_forums.courseid=imas_students.courseid AND imas_students.userid=:userid ";
$query .= "LEFT JOIN imas_forum_views as mfv ON mfv.threadid=imas_forum_threads.id AND mfv.userid=:useridB ";
$query .= "WHERE (imas_forum_threads.lastposttime>mfv.lastview OR (mfv.lastview IS NULL)) AND imas_forum_threads.lastposttime<:now ";
$query .= "AND (imas_forum_threads.stugroupid=0 OR imas_forum_threads.stugroupid IN (SELECT stugroupid FROM imas_stugroupmembers WHERE userid=:useridC)) ";
$query .= "ORDER BY imas_forum_threads.lastposttime DESC LIMIT 30";
$stm = $DBH->prepare($query);
$stm->execute(array(':userid'=>$userid, ':useridB'=>$userid, ':now'=>$now, ':useridC'=>$userid));
while ($line = $stm->fetch(PDO::FETCH_ASSOC)) {
if (!isset($courseforums[$line['courseid']])) {
$courseforums[$line['courseid']] = array();
}
if (!isset( $forumthreads[$line['id']])) {
$forumthreads[$line['id']]= array();
}
//add forum to courseforums list if not already there
if (!in_array($line['id'], $courseforums[$line['courseid']])) {
$courseforums[$line['courseid']][] = $line['id'];
}
$forumcourse[$line['id']] = $line['courseid'];
//add thread to forumthreads list if not already there
if (!in_array($line['tid'], $forumthreads[$line['id']])) {
$forumthreads[$line['id']][] = $line['tid'];
}
$forumname[$line['id']] = Sanitize::stripHtmlTags($line['name']);
$lastpost[$line['tid']] = formatdate($line['lastposttime']);
}
}
$coursenames = array();
$cidlist = implode(',',array_keys($courseforums));
//we know $cidlist is all integers from the database, so this is safe
$stm = $DBH->prepare("SELECT id,name FROM imas_courses WHERE id IN (:cidlist)");
$stm->execute(array(':cidlist'=>$cidlist));
while ($row = $stm->fetch(PDO::FETCH_NUM)) {
$coursenames[$row[0]] = $row[1];
}
asort($coursenames);
if (count($lastpost)>0) {
$threadids = implode(',',array_keys($lastpost));
//we know $threadids is all integers from the database, so this is safe
$query = "SELECT imas_forum_posts.*,imas_users.LastName,imas_users.FirstName FROM imas_forum_posts,imas_users ";
$query .= "WHERE imas_forum_posts.userid=imas_users.id AND imas_forum_posts.id IN (:threadids) ORDER BY imas_forum_posts.postdate DESC";
$stm = $DBH->prepare($query);
$stm->execute(array(':threadids'=>$threadids));
$lastforum = '';
$lastcourse = '';
$forumcontent = array();
while ($line = $stm->fetch(PDO::FETCH_ASSOC)) {
if (!isset($forumcontent[$line['forumid']])) {
$forumcontent[$line['forumid']] = '';
}
$course = $forumcourse[$line['forumid']];
$url = $imasroot."/forums/posts.php?page=-2&cid=$course&forum={$line['forumid']}&thread={$line['threadid']}";
/*$forumcontent[$line['forumid']] .= "<div style='font-size:100%;'>";
$forumcontent[$line['forumid']] .= "<a style='color: blue;' href='$url' target='_new'>{$line['subject']}</a>";
$forumcontent[$line['forumid']] .= " <span style='color: black;'>".Sanitize::encodeStringForDisplay("{$line['LastName']}, {$line['FirstName']}")."</span>";
$forumcontent[$line['forumid']] .= " <span style='color: gray;'>".Sanitize::encodeStringForDisplay($lastpost[$line['threadid']])."</span></div>";
*/
$forumcontent[$line['forumid']] .= "<tr><td><a style='color: blue;' href='$url' target='_new'>{$line['subject']}</a></td>";
$forumcontent[$line['forumid']] .= "<td><span style='color: black;'>".Sanitize::encodeStringForDisplay("{$line['LastName']}, {$line['FirstName']}")."</span><br/>";
$forumcontent[$line['forumid']] .= "<span style='color: gray;'>".Sanitize::encodeStringForDisplay($lastpost[$line['threadid']])."</span></td></tr>";
}
echo "<div style='font-size:100%; font-weight: 700; background-color: #ccf; margin-below:5px;'>New Posts</div>";
foreach($coursenames as $id=>$name) {
echo "<div style='font-size:100%; color: #606; font-weight: 700; '>" .Sanitize::encodeStringForDisplay($name)."</div>";
echo "<div style='margin-left: 5px;'>";
asort($courseforums[$id]);
foreach($courseforums[$id] as $fid) {
echo "<div style='font-size:100%; color: green;'>{$forumname[$fid]}</div>";
echo "<table border=0>";
echo $forumcontent[$fid];
echo '</table></div>';
}
echo '</div>';
}
} else {
echo "<div style='font-size:100%; font-weight: 700; background-color: #ccf; margin-below:5px;'>No New Posts</div>";
}
$query = "SELECT imas_msgs.id,imas_msgs.courseid,imas_msgs.title,imas_msgs.senddate,imas_users.FirstName,imas_users.LastName ";
$query .= "FROM imas_msgs,imas_users WHERE imas_msgs.msgto=:msgto AND imas_msgs.msgfrom=imas_users.id ";
$query .= "AND (imas_msgs.isread=0 OR imas_msgs.isread=4) ORDER BY imas_msgs.senddate DESC";
$stm = $DBH->prepare($query);
$stm->execute(array(':msgto'=>$userid));
if ($stm->rowCount()>0) {
echo "<div style='font-size:100%; font-weight: 700; background-color: #ccf; '>New Messages</div>";
echo '<table border=0 cellspacing=2>';
$intable = true;
} else {
echo "<div style='font-size:100%; font-weight: 700; background-color: #ccf; '>No New Messages</div>";
$intable = false;
}
while ($line = $stm->fetch(PDO::FETCH_ASSOC)) {
$n = 0;
if (trim($line['title'])=='') {
$line['title'] = '[No Subject]';
}
while (strpos($line['title'],'Re: ')===0) {
$line['title'] = substr($line['title'],4);
$n++;
}
$line['title'] = Sanitize::encodeStringForDisplay($line['title']);
if ($n==1) {
$line['title'] = 'Re: '.$line['title'];
} else if ($n>1) {
$line['title'] = "Re<sup>$n</sup>: ".$line['title'];
}
$url = "/msgs/viewmsg.php?cid=0&type=msg&msgid=".$line['id'];
echo "<tr><td>";
echo "<a style='color: blue;' href='$url' target='_new'>".$line['title']."</a></td>";
echo "<td><span style='color: black;'>".Sanitize::encodeStringForDisplay("{$line['LastName']}, {$line['FirstName']}")."</span><br/>";
echo "<span style='color: gray;'>".Sanitize::encodeStringForDisplay(formatdate($line['senddate']))."</span></td></tr>";
}
if ($intable) {
echo '</table>';
}
?>
</body>
</html>