From 78b585135fc16c268a9de69a1156231873995a49 Mon Sep 17 00:00:00 2001
From: Jason Oster <parasytic@users.sourceforge.net>
Date: Wed, 20 May 2009 17:10:09 +0000
Subject: Force makeTitle() to limit the amount of text put into a title

---
 functions/date_functions.php |  6 +++---
 functions/init/sanitize.php  | 17 +++++++++++++++++
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/functions/date_functions.php b/functions/date_functions.php
index 3d55d7b..d722c17 100644
--- a/functions/date_functions.php
+++ b/functions/date_functions.php
@@ -163,7 +163,7 @@ function chooseOffset($time, $timezone = '') {
 function makeTitle($arr, $time) {
 	global $timeFormat, $dateFormat_week;
 
-	$event_text = stripslashes(urldecode($arr["event_text"]));
+	$event_text = chopToWordCount(sanitizeForWeb(urldecode($arr["event_text"])), 25);
 	if ($time == -1) {
 		$start = localizeDate($dateFormat_week, $arr['start_unixtime']);
 		$end   = localizeDate($dateFormat_week, ($arr['end_unixtime'] - 60));
@@ -177,10 +177,10 @@ function makeTitle($arr, $time) {
 	}
 
 	if (!empty($arr['description'])) {
-		$title .= "\n\nDescription: ".urldecode($arr['description']);
+		$title .= "\n\nDescription: " . chopToWordCount(sanitizeForWeb(urldecode($arr['description'])), 100);
 	}
 	if (!empty($arr['location'])) {
-		$title .= "\n\nLocation: ".urldecode($arr['location']);
+		$title .= "\n\nLocation: " . chopToWordCount(sanitizeForWeb(urldecode($arr['location'])), 25);
 	}
 	$title = trim($title);
 
diff --git a/functions/init/sanitize.php b/functions/init/sanitize.php
index 5e9d57e..0370f9f 100644
--- a/functions/init/sanitize.php
+++ b/functions/init/sanitize.php
@@ -33,6 +33,23 @@ function recursiveSanitize($value) {
 }
 
 
+/**
+ * Truncate a string to a specific number of words
+ */
+function chopToWordCount($string, $count) {
+    $wc = str_word_count($string);
+    if ($wc > $count) {
+	$words = str_word_count($string, 2);
+	$last_word = array_slice($words, $count, 1, true);
+	$pos = key($last_word);
+	$string = substr($string, 0, $pos);
+    }
+    return $string;
+}
+
+/**
+ * Strip "dangerous" HTML to make it safe to print to web browsers
+ */
 function sanitizeForWeb($string) {
     $string = preg_replace('/<br\s*\/?>/', "\n", $string);
 
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