(.*?)<\/i>/',
'/,/',
'/;/',
'/</',
'/>/',
'/&/',
'/̵[67];/',
'/̶[01];/'
);
$replace = array(
//br and p
"\\n",
"\\n\\n",
"",
//a element
//"\\1\\3 [link: \\2]\\4",
"\\1\\3 [link]\\4",
//code
"\\1",
//img
"[img]\\n",
//cite=,cite
"\\n\\2[cite: \\1]\\n\\n",
"[cite]\\1",
//ul/ol, li
"\\n\\1",
"* \\1\\n",
"\\1",
"\\1",
"\\1",
"\\1",
"\\1",
"\\,",
"\\;",
"<",
">",
"&",
"'",
"\""
);
$data = preg_replace($patterns, $replace, $data);
$data = strip_tags($data);
return $data;
}
$url = getVar("url", "");
if (strlen($url) == 0) {
echo "\n";
echo "\n";
echo "RSS2iCal\n";
echo "\n";
echo "\n";
echo "View and/or Subscribe to RSS/RDF News Feeds in iCalendar (vCal 2.0) format.\n";
echo "Subscriptions have only been tested with Apple's iCal application.
\n";
echo "Once you have subscribed to a news feed in Apple's iCal, iSync can be used to synchronize it with your iPod, Palm, or cell phone.
\n";
echo "
\n";
echo "\n";
echo "\n";
echo "Links to Common RSS Feeds Converted to iCal format and subscriptions to them:\n";
echo "\n";
echo "\n";
echo "\n";
}
else {
$url = preg_replace('/http:\/\//', '', $url);
header("Content-type: text/plain");
//header("Content-Disposition: inline; filename=MyiCalFile.ics");
if ($rssData = parseRSS ( "http://$url")) {
$channel_title = fix($rssData["channel"]["title"]);
$channel_description = fix($rssData["channel"]["description"]);
if (strlen($channel_description) == 0) {
$channel_description = $channel_title;
}
$channel_date = pre_fix($rssData["channel"]["dc:date"]);
$channel_pubdate = pre_fix($rssData["channel"]["pubdate"]);
$channel_lastbuilddate = pre_fix($rssData["channel"]["lastbuilddate"]);
if (strlen($channel_pubdate) > 0 && (strlen($channel_date) == 0)) {
$channel_date = $channel_pubdate;
}
if (strlen($channel_lastbuilddate) > 0 && (strlen($channel_date) == 0)) {
$channel_date = $channel_lastbuilddate;
}
echo "BEGIN:VCALENDAR\n";
echo "CALSCALE:GREGORIAN\n";
//echo "X-WR-TIMEZONE;VALUE=TEXT:US/Eastern\n";
echo "METHOD:PUBLISH\n";
echo "PRODID:RSS2iCal 0.0.1\n";
echo "X-WR-CALNAME;VALUE=TEXT:" . $channel_title . "\n";
echo "X-WR-CALDESC;VALUE=TEXT:" . $channel_description . "\n";
//echo "X-WR-RELCALID;VALUE=TEXT:123456789\n";
echo "VERSION:2.0\n";
for ( $i = 0; isset ( $rssData[$i] ); $i++ ) {
$item_title = fix($rssData[$i]["title"]);
$item_link = fix($rssData[$i]["link"]);
if (strlen(fix($rssData[$i]["guid"])) > 0 && (strlen($item_link) == 0)) {
$item_link = fix($rssData[$i]["guid"]);
}
$item_description = fix($rssData[$i]["description"]);
if (strlen(fix($rssData[$i]["content:encoded"])) > 0) {
$item_description = fix($rssData[$i]["content:encoded"]);
}
if ((strlen($item_description) > 0) && (strlen($item_title) == 0)) {
$item_title = substr($item_description, 0, 30) . "...";
}
$item_date = pre_fix($rssData[$i]["dc:date"]);
$item_pubdate = pre_fix($rssData[$i]["pubdate"]);
if (strlen($item_pubdate) > 0 && (strlen($item_date) == 0)) {
$item_date = $item_pubdate;
}
//If we use the channel date, all entries have the same datetime
//This datetime is erroneous because it only applies to the latest item
//For now don't use it. This results in prettier iCal display
//if (strlen($channel_date) > 0 && (strlen($item_date) == 0)) {
//$item_date = $channel_date;
//}
//echo $item_date;
if (strlen($item_date) == 25) {
$strDT = substr($item_date, 5, 2) . "/";
$strDT = $strDT . substr($item_date, 8, 2) . "/";
$strDT = $strDT . substr($item_date, 0, 4) . " ";
$strDT = $strDT . substr($item_date, 11, 8) . " GMT";
//echo "strDT: " . $strDT;
$gmt_offset = substr($item_date, 19, 3);
$gmt_offset = 60 * 60 * $gmt_offset;
//echo "gmt_offset: " . $gmt_offset;
$unix_time = strtotime($strDT) - $gmt_offset;
//echo "unixtime: " . $unix_time;
$item_date = gmdate("Ymd\THis\Z", $unix_time);
}
elseif (strlen($item_date) == 29) {
$item_date = gmdate("Ymd\THis\Z", strtotime($item_date));
}
else {
$item_date = date("Ymd");
}
echo "BEGIN:VEVENT\n";
echo "UID:" . md5($item_link . $item_title) . "\n";
echo "DTSTAMP;VALUE=DATE:$item_date\n";
echo "SUMMARY:" . $item_title . "\n";
if ((strlen($item_link) > 0) && (strlen($item_description) > 0)) {
echo "DESCRIPTION:" . $item_link . "\\n\\n" . $item_description . "\n";
}
elseif (strlen($item_description) > 0) {
echo "DESCRIPTION:" . $item_description . "\n";
}
elseif (strlen($item_link) > 0) {
echo "DESCRIPTION:" . $item_link . "\\n\\n\n";
}
echo "DTSTART;VALUE=DATE:$item_date\n";
echo "DTEND;VALUE=DATE:$item_date\n";
echo "END:VEVENT\n";
}
echo "END:VCALENDAR\n";
}
else {
echo "Unable to parse RSS feed.";
}
}
?>