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<?php
/**
* OSIC: core.php
*
* This file contains functions common to all other source files.
*
* @author Chris Goerner <cgoerner@users.sourceforge.net>
* @version $Id: core.php,v 1.4 2005/04/10 03:36:28 cgoerner Exp $
* @version $Revision: 1.4 $
*
**/
$time_start = getmicrotime();
/**
* @return float Returns current time in microseconds
**/
function getmicrotime()
{
list($usec, $sec) = explode(" ", microtime());
return ((float)$usec + (float)$sec);
}
/**
* Sends HTML header
**/
function SendPageHeader()
{
global $page_bgcolour, $page_heading;
echo("<HTML><HEAD><TITLE>$page_heading</TITLE><STYLE type=\"text/css\"><!--BODY{background-color:" . $page_bgcolour . ";font-family:verdana,sans-serif;font-size:9pt}TABLE{font-family:verdana,sans-serif;font-size:8pt}PRE{font-family:sans-serif}--></STYLE></HEAD>");
echo("<BODY>");
}
/**
* Sends HTML footer
**/
function SendPageFooter()
{
global $app_version, $app_name, $time_start, $show_server_software, $show_server_name;
$time_end = getmicrotime();
$time = $time_end - $time_start;
echo "<small><p><a href=\"http://schoolreports.sourceforge.net/\">$app_name</a> " . $app_version;
echo "<br>" . number_format($time, 3) . " seconds elapsed.";
if ($show_server_software) {
echo "<br>".$_SERVER["SERVER_SOFTWARE"]." ";
}
if ($show_server_name) {
echo "<br>Running on ".$_SERVER["SERVER_NAME"];
}
echo "</small></BODY></HTML>";
}
/**
* Sends page title enclosed in <h1></h1>
**/
function SendPageTitle()
{
global $page_title;
echo("<h1>$page_title</h1>");
}
/**
* Gets the value of GET or POST variables
*
* @param string $nm name of variable to return
* @return string Returns value of GET or POST variable
**/
function getVAR($nm)
{
$tmp = "";
if (isset($_COOKIE['bulletin'][$nm])) {
$tmp = $_COOKIE['bulletin'][$nm];
} elseif (isset($_POST[$nm])) {
$tmp = $_POST[$nm];
} elseif (isset($_GET[$nm])) {
$tmp = $_GET[$nm];
}
return $tmp;
}
/**
* Will return the value of a particular field given the ID, table, and field name.
*
* @param $table The name of the table
* @param $id The ID of the record
* @param $field The name of the field
* @return string The value of the field
**/
function getValueFromID($table, $id, $field)
{
$result = do_mysql_query("SELECT * FROM $table WHERE ID=$id");
$tempOutput = "";
while ($row = mysql_fetch_array($result)) {
$tempOutput = $row[$field];
}
return $tempOutput;
}
/**
* Gets the highest ID in a table
*
* @param $table The name of the table
* @return integer The highest ID found
**/
function getLastID($table)
{
$result = do_mysql_query("SELECT * FROM $table ORDER BY ID");
$tmp = "0";
while ($row = mysql_fetch_array($result)) {
$tmp = $row["ID"];
}
return $tmp;
}
/**
* The function queries the database for the number of records in a table. If $condition is not
* empty then it will be used to filter records.
*
* @param $table The name of the table
* @param string $condition SQL compliant condition
* @return integer The number of rows
**/
function rowCount($table,$condition = "")
{
if ($condition == "") {
$result = do_mysql_query("SELECT COUNT(*) AS count FROM $table");
} else {
$result = do_mysql_query("SELECT COUNT(*) AS count FROM $table WHERE $condition");
}
$row = mysql_fetch_assoc($result);
return $row['count'];
}
function do_mysql_query($query) {
$result = mysql_query("$query");
if (!$result) {
echo "<p>Error while performing SQL query!<p>" . mysql_error();
echo "<p>Query: $query";
exit();
}
return $result;
}
function sendNavBar($links,$username,$password,$display_date) {
global $PHP_SELF, $table_heading_bgcolour;
echo "<table width=100%><tr bgcolor=$table_heading_bgcolour>";
foreach ($links as $l) {
switch($l){
case "home":
echo "<td align=center><a href=\"$PHP_SELF?username=$username&password=$password\">Today</a></td>";
break;
case "edit":
echo "<td align=center><a href=\"$PHP_SELF?display_date=$display_date&edit=on&username=$username&password=$password\">Edit Mode</a></td>";
break;
case "logout":
echo "<td align=center><a href=\"$PHP_SELF?action=logout\">Log Out</a></td>";
break;
case "create_notice":
echo "<td align=center><a href=\"$PHP_SELF?action=create_notice&display_date=$display_date&username=$username&password=$password\">Create Notice</a></td>";
break;
case "add_event":
echo "<td align=center><a href=\"$PHP_SELF?action=add_event&display_date=$display_date&username=$username&password=$password\">Add Event</a></td>";
break;
case "previous":
$tempdate = mktime (0,0,0,date("m",$display_date) ,date("d",$display_date)-1,date("Y",$display_date));
echo "<td align=center><a href=\"$PHP_SELF?display_date=$tempdate&username=$username&password=$password\">Previous Day</a></td>";
break;
case "next":
$tempdate = mktime (0,0,0,date("m",$display_date) ,date("d",$display_date)+1,date("Y",$display_date));
echo "<td align=center><a href=\"$PHP_SELF?display_date=$tempdate&username=$username&password=$password\">Next Day</a></td>";
break;
case "manage_users":
echo "<td align=center><a href=\"$PHP_SELF?action=manage_users&username=$username&password=$password\">Manage Users</a></td>";
break;
case "absentees":
echo "<td align=center><a href=\"http://intranet/a\"><font color=red>Absentees</font></a></td>";
break;
} // switch
} // foreach
echo "</tr></table>";
}
function getSetting($setting_name, $default_value) {
global $settings_table;
$result = do_mysql_query("SELECT * FROM $settings_table WHERE name='$setting_name'");
$row = mysql_fetch_array($result);
$val = $row["value"];
if ($val=="") {
$val = $default_value;
}
return $val;
}
function setSetting($setting_name, $setting_value) {
global $settings_table;
$result = do_mysql_query("DELETE FROM $settings_table WHERE name='$setting_name'");
$result = do_mysql_query("INSERT INTO $settings_table (ID,name,value) VALUES ('','$setting_name','$setting_value')");
}
function authenticate($username,$password) {
global $users_table;
$username = strtolower($username);
$result = do_mysql_query("SELECT * FROM $users_table WHERE username='$username'");
$row = mysql_fetch_array($result);
if ($password==$row["password"]) {
return true;
} else {
return false;
}
}
function getImportanceList($default="") {
global $importance_table;
$result = do_mysql_query("SELECT * FROM $importance_table");
$tempOutput = "<select size=\"1\" name=\"lstimportance\">";
while ($row = mysql_fetch_array($result)) {
if ($row["ID"] == $default) { $selected="selected"; } else { $selected=""; }
$tempOutput .= "<option value=".$row["ID"]." $selected>".$row["importance"]."</option>";
}
$tempOutput .= "</select>";
return $tempOutput;
}
function getUserList() {
global $users_table;
$result = do_mysql_query("SELECT * FROM $users_table ORDER BY realname");
$tempOutput = "<select size=\"3\" name=\"lstusers[]\">";
$tempOutput .= "<option value=\"-1\">Staff and Students</option>";
while ($row = mysql_fetch_array($result)) {
if ($row["username"]!="admin") {
$selected="";
if ($row["ID"]=="3") {$selected = "selected";}
$tempOutput .= "<option $selected value=".$row["ID"].">".$row["realname"]." only</option>";
}
}
$tempOutput .= "</select>";
return $tempOutput;
}
function getEditUserList($nid) {
global $permissions_table,$users_table;
$result = do_mysql_query("SELECT * FROM $users_table ORDER BY realname");
$tempOutput = "<select size=\"3\" name=\"lstusers[]\">";
$p_result = do_mysql_query("SELECT * FROM $permissions_table WHERE notice_id='$nid' AND user_id='-1'");
if (mysql_num_rows($p_result)) { $selected="selected"; } else { $selected=""; }
$tempOutput .= "<option value=\"-1\" $selected>Staff and Students</option>";
while ($row = mysql_fetch_array($result)) {
if ($row["username"]!="admin") {
$id = $row["ID"];
$p_result = do_mysql_query("SELECT * FROM $permissions_table WHERE notice_id='$nid' AND user_id='$id'");
if (mysql_num_rows($p_result)) { $selected="selected"; } else { $selected=""; }
$tempOutput .= "<option value=$id $selected>".$row["realname"]." only</option>";
}
}
$tempOutput .= "</select>";
return $tempOutput;
}
function getDateList($multi=true,$default) {
if ($multi) {
$tempOutput = "<select size=\"5\" name=\"lstdate[]\" multiple>";
} else {
$tempOutput = "<select size=\"5\" name=\"lstdate[]\">";
}
$tempdate = mktime (0,0,0,date("m") ,date("d"),date("Y"));
if ($tempdate == $default) { $selected="selected"; } else { $selected=""; }
$tempOutput .= "<option value=\"$tempdate\" $selected>Today (".date("jS \of F",$tempdate).")</option>";
$tempdate = mktime (0,0,0,date("m") ,date("d")+1,date("Y"));
if ($tempdate == $default) { $selected="selected"; } else { $selected=""; }
$tempOutput .= "<option value=\"$tempdate\" $selected>Tomorrow (".date("jS \of F",$tempdate).")</option>";
for ($i=2; $i<100; $i++) {
$tempdate = mktime (0,0,0,date("m") ,date("d")+$i,date("Y"));
if (date("l",$tempdate)!="Saturday" AND date("l",$tempdate)!="Sunday") {
if ($tempdate == $default) { $selected="selected"; } else { $selected=""; }
$tempOutput .= "<option value=\"$tempdate\" $selected>".date("l \\t\h\e jS \of F",$tempdate)."</option>";
}
}
$tempOutput .= "</select>";
return $tempOutput;
}
function getTypeFaceList($default="") {
$tempOutput = "<select size=\"1\" name=\"lsttypeface\">";
if ($default == "Default") { $selected="selected"; } else { $selected=""; }
$tempOutput .= "<option value=\"Default\" $selected>Default</option>";
if ($default == "Times New Roman") { $selected="selected"; } else { $selected=""; }
$tempOutput .= "<option value=\"Times New Roman\" $selected>Times New Roman</option>";
if ($default == "Arial") { $selected="selected"; } else { $selected=""; }
$tempOutput .= "<option value=\"Arial\" $selected>Arial</option>";
if ($default == "Courier New") { $selected="selected"; } else { $selected=""; }
$tempOutput .= "<option value=\"Courier New\" $selected>Courier New</option>";
$tempOutput .= "</select>";
return $tempOutput;
}
function getFontSizeList($default="") {
$tempOutput = "<select size=\"1\" name=\"lstfontsize\">";
if ($default == "2") { $selected="selected"; } else { $selected=""; }
$tempOutput .= "<option value=\"2\" $selected>Normal</option>";
if ($default == "3") { $selected="selected"; } else { $selected=""; }
$tempOutput .= "<option value=\"3\" $selected>+1</option>";
if ($default == "4") { $selected="selected"; } else { $selected=""; }
$tempOutput .= "<option value=\"4\" $selected>+2</option>";
$tempOutput .= "</select>";
return $tempOutput;
}
function haveaccess($username,$notice_id) {
global $users_table,$permissions_table;
$result = do_mysql_query("SELECT * FROM $users_table WHERE username='$username' LIMIT 1");
$row = mysql_fetch_array($result);
$user_id=$row["ID"];
$tempOutput = FALSE;
$result = do_mysql_query("SELECT * FROM $permissions_table WHERE notice_id=$notice_id");
while ($row = mysql_fetch_array($result)) {
if ($row["user_id"]==$user_id OR $row["user_id"]=="-1") {
$tempOutput = TRUE;
}
}
return $tempOutput;
}
function send_notice($type,$msg) {
global $page_bgcolour, $table_heading_bgcolour;
switch($type){
case "ERROR":
$text = "<font color=red><big>$msg</big></font>";
$img = "<img src=\"images/stop.png\">";
break;
case "OK":
$text = "<font color=green><big>$msg</big></font>";
$img = "<img src=\"images/ok.png\">";
break;
case "QUESTION":
$text = "<font><big>$msg</big></font>";
$img = "<img src=\"images/question.png\">";
break;
case "EXCLAMATION":
$text = "<fontn><big>$msg</big></font>";
$img = "<img src=\"images/exclamation.png\">";
break;
case "NONE":
$text = "<big>$msg</big>";
$img = "";
break;
}
return "<table bgcolor=$page_bgcolour style=\"border: 3px solid $table_heading_bgcolour; padding-left: 4; padding-right: 4; padding-top: 1; padding-bottom: 1\"><tr><td>$img</td><td>$text</td></tr></table>";
}
function formattext($text) {
$temp = trim($text);
$temp = str_replace("\n* ","\n<li>",$temp);
$temp = str_replace("\n","<br>\n",$temp);
return $temp;
}
# PHP Calendar (version 2.3), written by Keith Devens
# http://keithdevens.com/software/php_calendar
# see example at http://keithdevens.com/weblog
# License: http://keithdevens.com/software/license
function generate_calendar($year, $month, $days = array(), $day_name_length = 3, $month_href = NULL, $first_day = 0, $pn = array()){
global $page_bgcolour; //cgoerner - added
$first_of_month = gmmktime(0,0,0,$month,1,$year);
#remember that mktime will automatically correct if invalid dates are entered
# for instance, mktime(0,0,0,12,32,1997) will be the date for Jan 1, 1998
# this provides a built in "rounding" feature to generate_calendar()
$day_names = array(); #generate all the day names according to the current locale
for($n=0,$t=(3+$first_day)*86400; $n<7; $n++,$t+=86400) #January 4, 1970 was a Sunday
$day_names[$n] = ucfirst(gmstrftime('%A',$t)); #%A means full textual day name
list($month, $year, $month_name, $weekday) = explode(',',gmstrftime('%m,%Y,%B,%w',$first_of_month));
$weekday = ($weekday + 7 - $first_day) % 7; #adjust for $first_day
$title = htmlentities(ucfirst($month_name)).' '.$year; #note that some locales don't capitalize month and day names
#Begin calendar. Uses a real <caption>. See http://diveintomark.org/archives/2002/07/03
@list($p, $pl) = each($pn); @list($n, $nl) = each($pn); #previous and next links, if applicable
if($p) $p = '<span class="calendar-prev">'.($pl ? '<a href="'.htmlspecialchars($pl).'">'.$p.'</a>' : $p).'</span> ';
if($n) $n = ' <span class="calendar-next">'.($nl ? '<a href="'.htmlspecialchars($nl).'">'.$n.'</a>' : $n).'</span>';
$calendar = '<table class="calendar">'."\n".
'<caption class="calendar-month">'.$p.($month_href ? '<a href="'.htmlspecialchars($month_href).'">'.$title.'</a>' : $title).$n."</caption>\n<tr>";
if($day_name_length){ #if the day names should be shown ($day_name_length > 0)
#if day_name_length is >3, the full name of the day will be printed
foreach($day_names as $d)
$calendar .= '<th abbr="'.htmlentities($d).'">'.htmlentities($day_name_length < 4 ? substr($d,0,$day_name_length) : $d).'</th>';
$calendar .= "</tr>\n<tr>";
}
if($weekday > 0) $calendar .= '<td colspan="'.$weekday.'"> </td>'; #initial 'empty' days
for($day=1,$days_in_month=gmdate('t',$first_of_month); $day<=$days_in_month; $day++,$weekday++){
if($weekday == 7){
$weekday = 0; #start a new week
$calendar .= "</tr>\n<tr>";
}
if(isset($days[$day]) and is_array($days[$day])){
@list($link, $classes, $content) = $days[$day];
if(is_null($content)) $content = $day;
//cgoerner - added bgcolour here
$calendar .= "<td bgcolor=$page_bgcolour ".($classes ? ' class="'.htmlspecialchars($classes).'">' : '>').
($link ? '<a href="'.htmlspecialchars($link).'">'.$content.'</a>' : $content).'</td>';
}
else $calendar .= "<td>$day</td>";
}
if($weekday != 7) $calendar .= '<td colspan="'.(7-$weekday).'"> </td>'; #remaining "empty" days
return $calendar."</tr>\n</table>\n";
}
?>