PM inbox

3 files changed, 52 insertions, 1 deletions

diff --git a/inc/config.php b/inc/config.php
index c61fb5d0..a8bbde53 100644
--- a/inc/config.php
+++ b/inc/config.php
@@ -279,6 +279,8 @@
 	$config['mod']['rebuild_timelimit'] = 0;
 	// Server-side confirm button for actions like deleting posts, for when Javascript is disabled or the DOM isn't loaded.
 	$config['mod']['server-side_confirm'] = true;
+	// PM snippet (for ?/inbox) length in characters
+	$config['mod']['snippet_length'] = 75;
 	
 	// Probably best not to change these:
 	if(!defined('JANITOR')) {
diff --git a/inc/display.php b/inc/display.php
index 72983a49..c0d2dde1 100644
--- a/inc/display.php
+++ b/inc/display.php
@@ -92,6 +92,24 @@
 		)));
 	}
 	
+	function pm_snippet($body) {
+		global $config;
+		
+		// Replace line breaks with some whitespace
+		$body = str_replace('<br/>', '  ', $body);
+		
+		// Strip tags
+		$body = strip_tags($body);
+		
+		// Unescape HTML characters, to avoid splitting them in half
+		$body = html_entity_decode_utf8($body);
+		
+		$body = substr($body, 0, $config['mod']['snippet_length']) . (strlen($body) > $config['mod']['snippet_length'] ? '…' : '');
+		
+		// Re-escape the characters.
+		return '<em>' . utf8tohtml($body) . '</em>';
+	}
+	
 	function confirmLink($text, $title, $confirm, $href) {
 		global $config, $mod;
 		if($config['mod']['server-side_confirm'])
diff --git a/inc/functions.php b/inc/functions.php
index 1e198b14..5c6b7c72 100644
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -1023,6 +1023,37 @@
 		$body = preg_replace("/\n/", '<br/>', $body);
 	}
 
+	function html_entity_decode_utf8($string) {
+		static $trans_tbl;
+		
+		// replace numeric entities
+		$string = preg_replace('~&#x([0-9a-f]+);~ei', 'code2utf(hexdec("\\1"))', $string);
+		$string = preg_replace('~&#([0-9]+);~e', 'code2utf(\\1)', $string);
+
+		// replace literal entities
+		if (!isset($trans_tbl)) {
+			$trans_tbl = array();
+			
+			foreach (get_html_translation_table(HTML_ENTITIES) as $val=>$key)
+				$trans_tbl[$key] = utf8_encode($val);
+		}
+		
+		return strtr($string, $trans_tbl);
+	}
+
+	// Returns the utf string corresponding to the unicode value (from php.net, courtesy - romans@void.lv)
+	function code2utf($num) {
+		if ($num < 128)
+			return chr($num);
+		if ($num < 2048)
+			return chr(($num >> 6) + 192) . chr(($num & 63) + 128);
+		if ($num < 65536)
+			return chr(($num >> 12) + 224) . chr((($num >> 6) & 63) + 128) . chr(($num & 63) + 128);
+		if ($num < 2097152)
+			return chr(($num >> 18) + 240) . chr((($num >> 12) & 63) + 128) . chr((($num >> 6) & 63) + 128) . chr(($num & 63) + 128);
+		return '';
+	}
+
 	function utf8tohtml($utf8, $encodeTags=true) {
 		$result = '';
 		for ($i = 0; $i < strlen($utf8); $i++) {
@@ -1040,7 +1071,7 @@
 			} else if ($ascii < 240) {
 				// three-byte character
 				$ascii1 = ord($utf8[$i+1]);
-				$ascii2 = ord($utf8[$i+2]);
+				$ascii2 = @ord($utf8[$i+2]);
 				$unicode = (15 & $ascii) * 4096 +
 						   (63 & $ascii1) * 64 +
 						   (63 & $ascii2);