Fixed several instances in WordPress where PHP Notices are not being handled correctly.

Fixes supplied by Aaron Jensen (aaron@visualprose.com).


git-svn-id: http://svn.automattic.com/wordpress/trunk@559 1a063a9b-81f0-0310-95a4-ce76da25c4cd

b2-include/b2functions.php

@@ -293,14 +293,14 @@ function convert_gmcode($content) {
 function convert_smilies($text) {
 	global $smilies_directory, $use_smilies;
 	global $b2_smiliessearch, $b2_smiliesreplace;
-
+    $output = '';
 	if ($use_smilies) {
 		// HTML loop taken from texturize function, could possible be consolidated
 		$textarr = preg_split("/(<.*>)/U", $text, -1, PREG_SPLIT_DELIM_CAPTURE); // capture the tags as well as in between
 		$stop = count($textarr);// loop stuff
 		for ($i = 0; $i < $stop; $i++) {
 			$content = $textarr[$i];
-			if ('<' != $content{0}) { // If it's not a tag
+			if ((strlen($content) > 0) && ('<' != $content{0})) { // If it's not a tag
 				$content = str_replace($b2_smiliessearch, $b2_smiliesreplace, $content);
 			}
 			$output .= $content;
@@ -1628,7 +1628,10 @@ function apply_filters($tag, $string) {
 	global $b2_filter;
 	if (isset($b2_filter['all'])) {
 		$b2_filter['all'] = (is_string($b2_filter['all'])) ? array($b2_filter['all']) : $b2_filter['all'];
+        if (isset($b2_filter[$tag]))
             $b2_filter[$tag] = array_merge($b2_filter['all'], $b2_filter[$tag]);
+        else
+            $b2_filter[$tag] = array_merge($b2_filter['all'], array());
 		$b2_filter[$tag] = array_unique($b2_filter[$tag]);
 	}
 	if (isset($b2_filter[$tag])) {

b2-include/b2template.functions.php

@@ -919,6 +919,7 @@ function the_excerpt_rss($cut = 0, $encode_html = 0) {
 		$output = strip_tags($output);
 	}
 	if ($cut) {
+        $excerpt = '';
 		$blah = explode(' ', $output);
 		if (count($blah) > $cut) {
 			$k = $cut;
@@ -970,6 +971,7 @@ function get_the_excerpt($fakeit = false) {
 			$k = count($blah);
 			$use_dotdotdot = 0;
 		}
+        $excerpt = '';
 		for ($i=0; $i<$k; $i++) {
 			$excerpt .= $blah[$i].' ';
 		}
@@ -1227,6 +1229,9 @@ function get_category_link($echo = false, $file='') {
     if ($file == '') {
         $file = "$siteurl/$blogfilename";
     }
+    if ('http:' != substr($file,0,5)) {
+        $file = "$siteurl/$file";
+    }
     $link = $file.$querystring_start.'cat'.$querystring_equal.$cat_ID;
     if ($echo)
         echo($link);

b2comments.php

@@ -10,9 +10,9 @@
             }
         }
 
-        $comment_author = trim($HTTP_COOKIE_VARS["comment_author_".$cookiehash]);
-		$comment_author_email = trim($HTTP_COOKIE_VARS["comment_author_email_".$cookiehash]);
-		$comment_author_url = trim($HTTP_COOKIE_VARS["comment_author_url_".$cookiehash]);
+ 		$comment_author = (isset($HTTP_COOKIE_VARS['comment_author_'.$cookiehash])) ? trim($HTTP_COOKIE_VARS['comment_author_'.$cookiehash]) : '';
+        $comment_author_email = (isset($HTTP_COOKIE_VARS['comment_author_email_'.$cookiehash])) ? trim($HTTP_COOKIE_VARS['comment_author_email_'.$cookiehash]) : '';
+ 		$comment_author_url = (isset($HTTP_COOKIE_VARS['comment_author_url_'.$cookiehash])) ? trim($HTTP_COOKIE_VARS['comment_author_url_'.$cookiehash]) : '';
 
         $comments = $wpdb->get_results("SELECT * FROM $tablecomments WHERE comment_post_ID = $id AND comment_approved = '1' ORDER BY comment_date");
         ++$querycount;

blog.header.php

@@ -41,9 +41,9 @@ $b2varstoreset = array('m','p','posts','w','c', 'cat','withcomments','s','search
 @header ("X-Pingback: $siteurl/xmlrpc.php");
 
 /* Getting settings from db */
-if ($doing_rss == 1)
+if (isset($doing_rss) && $doing_rss == 1)
     $posts_per_page=get_settings('posts_per_rss');
-if ($posts_per_page == 0)
+if (!isset($posts_per_page) || $posts_per_page == 0)
     $posts_per_page = get_settings('posts_per_page');
 $what_to_show = get_settings('what_to_show');
 $archive_mode = get_settings('archive_mode');
@@ -61,7 +61,7 @@ $distinct = '';
 
 if ($pagenow != 'wp-post.php') { timer_start(); }
 
-if ($showposts) {
+if (isset($showposts) && $showposts) {
     $showposts = (int)$showposts;
 	$posts_per_page = $showposts;
 }
@@ -288,7 +288,10 @@ if ($pagenow != 'wp-post.php') {
 $where .= ' AND (post_status = "publish"';
 
 // Get private posts
-if ('' != intval($user_ID)) $where .= " OR post_author = $user_ID AND post_status != 'draft')"; else $where .= ')';
+if (isset($user_ID) && ('' != intval($user_ID)))
+    $where .= " OR  post_author = $user_ID AND post_status != 'draft')";
+else
+    $where .= ')';
 $request = " SELECT $distinct * FROM $tableposts WHERE 1=1".$where." ORDER BY post_$orderby $limits";
 
 

wp-rss.php

@@ -1,25 +1,23 @@
 <?php /* These first lines are the first part of a CafeLog template.
          In every template you do, you got to copy them before the CafeLog 'loop' */
 $blog = 1; // enter your blog's ID
-$doing_rss=1;
+$doing_rss = 1;
 header('Content-type: text/xml',true);
 include('blog.header.php');
 
 // Handle Conditional GET
 
 // Get the time of the most recent article
-$sql = "SELECT max(post_date) FROM $tableposts";
-
-$maxdate = $wpdb->get_var($sql);
+$maxdate = $wpdb->get_var("SELECT max(post_date) FROM $tableposts");
 ++$querycount;
 $unixtime = strtotime($maxdate);
 
 // format timestamp for Last-Modified header
-$clast = gmdate("D, d M Y H:i:s \G\M\T",$unixtime);
-$cetag = md5($last);
+$clast = gmdate("D, d M Y H:i:s \G\M\T", $unixtime);
+$cetag = (isset($last)) ? md5($last) : '';
 
-$slast = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
-$setag = $_SERVER['HTTP_IF_NONE_MATCH'];
+$slast = (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) ? $_SERVER['HTTP_IF_MODIFIED_SINCE'] : '' ;
+$setag = (isset($_SERVER['HTTP_IF_NONE_MATCH'])) ? $_SERVER['HTTP_IF_NONE_MATCH'] : '';
 
 // send it in a Last-Modified header
 header("Last-Modified: " . $clast, true);
@@ -32,10 +30,17 @@ header("Etag: " . $cetag, true);
 // but if both headers exist, they *both* must match up with the locally
 // generated values.
 //if (($slast?($slast == $clast):true) && ($setag?($setag == $cetag):true)){
-if (($slast && $setag)?(($slast == $clast) && ($setag == $cetag)):(($slast == $clast) || ($setag == $cetag))) { 
+if (($slast != '') && ($setag != '')) {
+    if (($slast == $clast) && ($setag == $cetag)) {
         header("HTTP/1.1 304 Not Modified");
         echo "\r\n\r\n";
         exit;
+    } else if (($slast == $clast)
+               || ($setag == $cetag)) {
+        header("HTTP/1.1 304 Not Modified");
+        echo "\r\n\r\n";
+        exit;
+    }
 }
 
 if (!isset($rss_language)) { $rss_language = 'en'; }

wp-settings.php

@@ -4,7 +4,7 @@
 // We should eventually migrate to either calling
 // get_settings() wherever these are needed OR
 // accessing a single global $all_settings var
-if (!$_wp_installing) {
+if (!isset($_wp_installing) || !$_wp_installing) {
     $siteurl = get_settings('siteurl');
 	// "When trying to design a foolproof system, 
 	//  never underestimate the ingenuity of the fools :)"