Codice PHP:
<?php
/*******************************************************
* functions.php -
* phpEventCalendar global include file
*******************************************************/
function auth($login = '', $passwd = '')
{
session_start();
$auth = 0;
$register = false;
$authdata = null;
if (isset($_SESSION['authdata'])) {
$authdata = $_SESSION['authdata'];
}
# return false if login neither passed to func, nor in session
if (empty($login) && empty($authdata['login'])) {
return 0;
}
# get login passed to function
if (!empty($login)) {
$username = $login;
$pw = $passwd;
$register = true;
} else {
$username = $authdata['login'];
$pw = $authdata['password'];
}
mysql_connect(DB_HOST, DB_USER, DB_PASS) or die(mysql_error());
mysql_select_db(DB_NAME) or die(mysql_error());
$sql = "
SELECT * FROM " . DB_TABLE_PREFIX . "users
WHERE username = '" . $username . "'";
$result = mysql_query($sql) or die(mysql_error());
$row = mysql_fetch_assoc($result);
# validate login, and register session data if appropriate
if ( $pw == $row["password"] ) {
$auth = $row['userlevel'];
if ($register) {
$_SESSION['authdata'] = array(
'login' => $row['username'],
'password' => $row['password'],
'userlevel' => $row['userlevel'],
'uid' => $row['uid'],
);
}
} else {
# if passwords didn't match, delete authdata session data
unset($_SESSION['authdata']);
}
return $auth;
}
# ###################################################################
function monthPullDown($month, $montharray)
{
echo "<select name=\"month\">\n";
$selected[$month - 1] = ' selected="selected"';
for($i=0;$i < 12; $i++) {
$val = $i + 1;
$sel = (isset($selected[$i])) ? $selected[$i] : "";
echo " <option value=\"$val\"$sel>$montharray[$i]</option>\n";
}
echo "</select>\n\n";
}
# ###################################################################
function yearPullDown($year)
{
echo "<select name=\"year\">\n";
$selected[$year] = ' selected="selected"';
$years_before_and_after = 3;
$start_year = $year - $years_before_and_after;
$end_year = $year + $years_before_and_after;
for($i=$start_year;$i <= $end_year; $i++) {
$sel = (isset($selected[$i])) ? $selected[$i] : "";
echo " <option value=\"$i\"$sel>$i</option>\n";
}
echo "</select>\n\n";
}
# ###################################################################
function dayPullDown($day)
{
echo "<select name=\"day\">\n";
$selected[$day] = ' selected="selected"';
for($i=1;$i <= 31; $i++) {
$sel = (isset($selected[$i])) ? $selected[$i] : "";
echo " <option value=\"$i\"$sel>$i</option>\n";
}
echo "</select>\n\n";
}
# ###################################################################
function hourPullDown($hour, $namepre)
{
echo "\n<select name=\"" . $namepre . "_hour\">\n";
$selected[$hour] = ' selected="selected"';
for($i=0;$i <= 12; $i++) {
$sel = (isset($selected[$i])) ? $selected[$i] : "";
echo " <option value=\"$i\"$sel>$i</option>\n";
}
echo "</select>\n\n";
}
# ###################################################################
function minPullDown($min, $namepre)
{
echo "\n<select name=\"" . $namepre . "_min\">\n";
$selected[$min] = ' selected="selected"';
for($i=0;$i < 60; $i+=5) {
$disp_min = sprintf("%02d", $i);
$sel = (isset($selected[$i])) ? $selected[$i] : "";
echo "\t<option value=\"$i\"$sel>$disp_min</option>\n";
}
echo "</select>\n\n";
}
# ###################################################################
function amPmPullDown($pm, $namepre)
{
$sel = ' selected="selected"';
$am = null;
if ($pm) { $pm = $sel; } else { $am = $sel; }
echo "\n<select name=\"" . $namepre . "_am_pm\">\n";
echo " <option value=\"0\"$am>am</option>\n";
echo " <option value=\"1\"$pm>pm</option>\n";
echo "</select>\n\n";
}
# ###################################################################
function javaScript()
{
?>
<script language="javascript">
function submitMonthYear() {
document.monthYear.method = "post";
document.monthYear.action =
"index.php?month=" + document.monthYear.month.value +
"&year=" + document.monthYear.year.value;
document.monthYear.submit();
}
function postMessage(day, month, year) {
eval(
"page" + day + " = window.open('eventform.php?d=" + day + "&m=" +
month + "&y=" + year + "', 'postScreen', 'toolbar=0,scrollbars=1," +
"location=0,statusbar=0,menubar=0,resizable=1,width=340,height=400');"
);
}
function openPosting(pId) {
eval(
"page" + pId + " = window.open('eventdisplay.php?id=" + pId +
"', 'mssgDisplay', 'toolbar=0,scrollbars=1,location=0,statusbar=0," +
"menubar=0,resizable=1,width=340,height=400');"
);
}
function loginPop(month, year) {
eval("logpage = window.open('login.php?month=" + month + "&year=" +
year + "', 'mssgDisplay', 'toolbar=0,scrollbars=1,location=0," +
"statusbar=0,menubar=0,resizable=1,width=340,height=400');"
);
}
</script>
<?php
}
# ###################################################################
function footprint($auth, $m, $y)
{
global $lang;
echo "
<span class=\"footprint\">
\n ";
if ( $auth == 2 ) {
echo "
<a href=\"useradmin.php\">" . $lang['adminlnk'] . "</a> |
<a href=\"login.php?action=logout&month=$m&year=$y\">"
. $lang['logout'] . "</a>";
} elseif ( $auth == 1 ) {
echo "
<a href=\"useradmin.php?flag=changepw\">" . $lang['changepw'] . "</a> |
<a href=\"login.php?action=logout&month=$m&year=$y\">"
. $lang['logout'] . " </a>";
} else {
echo "<a href=\"javascript:loginPop($m, $y)\">"
. $lang['login'] . "</a>";
}
echo " </span>";
}
# ###################################################################
function scrollArrows($m, $y)
{
// set variables for month scrolling
$nextyear = ($m != 12) ? $y : $y + 1;
$prevyear = ($m != 1) ? $y : $y - 1;
$prevmonth = ($m == 1) ? 12 : $m - 1;
$nextmonth = ($m == 12) ? 1 : $m + 1;
return "
<a href=\"index.php?month=" . $prevmonth . "&year=" . $prevyear . "\">
<img src=\"images/leftArrow.gif\" border=\"0\"></a>
<a href=\"index.php?month=" . $nextmonth . "&year=" . $nextyear . "\">
<img src=\"images/rightArrow.gif\" border=\"0\"></a>
";
}
# ###################################################################
function writeCalendar($month, $year)
{
$str = getDayNameHeader();
$eventdata = getEventDataArray($month, $year);
# get first row position of first day of month.
$weekpos = getFirstDayOfMonthPosition($month, $year);
# get user permission level
$auth = (isset($_SESSION['authdata']))
? $_SESSION['authdata']['userlevel']
: false;
# get number of days in month
$days = date("t", mktime(0,0,0,$month,1,$year));
# initialize day variable to zero, unless $weekpos is zero
if ($weekpos == 0) $day = 1; else $day = 0;
# initialize today's date variables for color change
$timestamp = mktime() + CURR_TIME_OFFSET * 3600;
$d = date('j', $timestamp);
$m = date('n', $timestamp);
$y = date('Y', $timestamp);
# lookup for testing whether day is today
$today["$y-$m-$d"] = 1;
# loop writes empty cells until it reaches position of 1st day of
# month ($wPos). It writes the days, then fills the last row with empty
# cells after last day
while($day <= $days) {
$str .="<tr>\n";
# write row
for($i=0;$i < 7; $i++) {
# if cell is a day of month
if($day > 0 && $day <= $days) {
# set css class today if cell represents current date
$class = (isset($today["$year-$month-$day"])) ? 'today' : 'day';
$str .= "
<td class=\"{$class}_cell\" valign=\"top\">
<span class=\"day_number\">\n";
if ($auth) {
$str .= "
<a href=\"javascript: postMessage($day, $month, $year)\">
$day</a>";
} else {
$str .= "$day";
}
$str .= "</span>
";
if (isset($eventdata[$day]["title"])) {
// enforce title limit
$eventcount = count($eventdata[$day]["title"]);
if (MAX_TITLES_DISPLAYED < $eventcount) {
$eventcount = MAX_TITLES_DISPLAYED;
}
// write title link if day's postings
for($j=0;$j < $eventcount;$j++) {
$str .= "
<span class=\"title_txt\">
-<a href=\"javascript:openPosting("
. $eventdata[$day]["id"][$j] . ")\">"
. $eventdata[$day]["title"][$j] . "</a></span>";
}
}
$str .= "</td>\n";
$day++;
} elseif($day == 0) {
$str .= "
<td class=\"empty_day_cell\" valign=\"top\"></td>\n";
$weekpos--;
if ($weekpos == 0) $day++;
} else {
$str .= "
<td class=\"empty_day_cell\" valign=\"top\"></td>\n";
}
}
$str .= "</tr>\n\n";
}
$str .= "</table>\n\n";
return $str;
}
# ###################################################################
function getDayNameHeader()
{
global $lang;
// adjust day name order if weekstart not Sunday
if (WEEK_START != 0) {
for($i=0; $i < WEEK_START; $i++) {
$tempday = array_shift($lang['abrvdays']);
array_push($lang['abrvdays'], $tempday);
}
}
$s = "<table cellpadding=\"1\" cellspacing=\"1\" border=\"0\">\n<tr>\n";
foreach($lang['abrvdays'] as $day) {
$s .= "\t<td class=\"column_header\">$day</td>\n";
}
$s .= "</tr>\n\n";
return $s;
}
# ###################################################################
function getEventDataArray($month, $year)
{
$eventdata = null;
mysql_connect(DB_HOST, DB_USER, DB_PASS) or die(mysql_error());
mysql_select_db(DB_NAME) or die(mysql_error());
$sql = "SELECT id, d, title, start_time, end_time, ";
if (TIME_DISPLAY_FORMAT == "12hr") {
$sql .= "TIME_FORMAT(start_time, '%l:%i%p') AS stime, ";
$sql .= "TIME_FORMAT(end_time, '%l:%i%p') AS etime ";
} elseif (TIME_DISPLAY_FORMAT == "24hr") {
$sql .= "TIME_FORMAT(start_time, '%H:%i') AS stime, ";
$sql .= "TIME_FORMAT(end_time, '%H:%i') AS etime ";
} else {
echo "Bad time display format, check your configuration file.";
}
$sql .= "
FROM " . DB_TABLE_PREFIX . "mssgs WHERE m = $month AND y = $year
ORDER BY start_time";
$result = mysql_query($sql) or die(mysql_error());
while($row = mysql_fetch_assoc($result)) {
$day = $row["d"];
$eventdata[$day]["id"][] = $row["id"];
# set title string; limit char length and append ellipsis if necessary
$title = stripslashes($row["title"]);
$eventdata[$day]["title"][] = (strlen($title) > TITLE_CHAR_LIMIT)
? substr($title, 0, TITLE_CHAR_LIMIT) . '...'
: $title;
# set time string
if (!($row["start_time"] == "55:55:55"
&& $row["end_time"] == "55:55:55")) {
$starttime
= ($row["start_time"] == "55:55:55") ? "- -" : $row["stime"];
$endtime
= ($row["end_time"] == "55:55:55") ? "- -" : $row["etime"];
$timestr = "
<div align=\"right\" class=\"time_str\">
($starttime - $endtime)</div>\n";
} else {
$timestr = "
";
}
$eventdata[$day]["timestr"][] = $timestr;
}
return $eventdata;
}
# ###################################################################
function getFirstDayOfMonthPosition($month, $year)
{
$weekpos = date("w", mktime(0,0,0,$month,1,$year));
// adjust position if weekstart not Sunday
if (WEEK_START != 0) {
if ($weekpos < WEEK_START) {
$weekpos = $weekpos + 7 - WEEK_START;
} else {
$weekpos = $weekpos - WEEK_START;
}
}
return $weekpos;
}
# ###################################################################
?>
Grazie anticipatamente!
Rispondi quotando