Moved everything in wp-inst down a directory.

Uses's Ryan Boren's htaccess rules and mods
If you're upgrading, try this on a test server first!


git-svn-id: http://svn.automattic.com/wordpress-mu/trunk@591 7be80a69-a1ef-0310-a953-fb0f7c49ff36

1 files changed, 98 insertions, 0 deletions

diff --git a/wp-trackback.php b/wp-trackback.php
new file mode 100644
index 0000000..00eabeb
--- /dev/null
+++ b/wp-trackback.php
@@ -0,0 +1,98 @@
+<?php
+
+if (empty($wp)) {
+	require_once('wp-config.php');
+	wp('tb=1');
+}
+
+function trackback_response($error = 0, $error_message = '') {
+	header('Content-Type: text/xml; charset=' . get_option('blog_charset') );
+	if ($error) {
+		echo '<?xml version="1.0" encoding="utf-8"?'.">\n";
+		echo "<response>\n";
+		echo "<error>1</error>\n";
+		echo "<message>$error_message</message>\n";
+		echo "</response>";
+		die();
+	} else {
+		echo '<?xml version="1.0" encoding="utf-8"?'.">\n";
+		echo "<response>\n";
+		echo "<error>0</error>\n";
+		echo "</response>";
+	}
+}
+
+// trackback is done by a POST
+$request_array = 'HTTP_POST_VARS';
+
+if ( !$_GET['tb_id'] ) {
+	$tb_id = explode('/', $_SERVER['REQUEST_URI']);
+	$tb_id = intval( $tb_id[ count($tb_id) - 1 ] );
+}
+
+$tb_url    = $_POST['url'];
+$title     = $_POST['title'];
+$excerpt   = $_POST['excerpt'];
+$blog_name = $_POST['blog_name'];
+$charset   = $_POST['charset'];
+
+if ($charset)
+	$charset = strtoupper( trim($charset) );
+else
+	$charset = 'ASCII, UTF-8, ISO-8859-1, JIS, EUC-JP, SJIS';
+
+if ( function_exists('mb_convert_encoding') ) { // For international trackbacks
+	$title     = mb_convert_encoding($title, get_settings('blog_charset'), $charset);
+	$excerpt   = mb_convert_encoding($excerpt, get_settings('blog_charset'), $charset);
+	$blog_name = mb_convert_encoding($blog_name, get_settings('blog_charset'), $charset);
+}
+
+if ( is_single() || is_page() ) 
+    $tb_id = $posts[0]->ID;
+
+if ( !intval( $tb_id ) )
+	trackback_response(1, 'I really need an ID for this to work.');
+
+if (empty($title) && empty($tb_url) && empty($blog_name)) {
+	// If it doesn't look like a trackback at all...
+	header('Location: ' . get_permalink($tb_id));
+	exit;
+}
+
+if ( !empty($tb_url) && !empty($title) && !empty($tb_url) ) {
+	header('Content-Type: text/xml; charset=' . get_option('blog_charset') );
+
+	$pingstatus = $wpdb->get_var("SELECT ping_status FROM $wpdb->posts WHERE ID = $tb_id");
+
+	if ( 'open' != $pingstatus )
+		trackback_response(1, 'Sorry, trackbacks are closed for this item.');
+
+	$title =  wp_specialchars( strip_tags( $title ) );
+	$excerpt = strip_tags($excerpt);
+	if ( function_exists('mb_strcut') ) { // For international trackbacks
+		$excerpt = mb_strcut($excerpt, 0, 252, get_settings('blog_charset')) . '...';
+		$title = mb_strcut($title, 0, 250, get_settings('blog_charset')) . '...';
+	} else {
+		$excerpt = (strlen($excerpt) > 255) ? substr($excerpt, 0, 252) . '...' : $excerpt;
+		$title = (strlen($title) > 250) ? substr($title, 0, 250) . '...' : $title;
+	}
+
+	$comment_post_ID = $tb_id;
+	$comment_author = $blog_name;
+	$comment_author_email = '';
+	$comment_author_url = $tb_url;
+	$comment_content = "<strong>$title</strong>\n\n$excerpt";
+	$comment_type = 'trackback';
+
+	$dupe = $wpdb->get_results("SELECT * FROM $wpdb->comments WHERE comment_post_ID = '$comment_post_ID' AND comment_author_url = '$comment_author_url'");
+	if ( $dupe )
+		trackback_response(1, 'We already have a ping from that URI for this post.');
+
+	$commentdata = compact('comment_post_ID', 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_content', 'comment_type');
+
+	wp_new_comment($commentdata);
+
+	do_action('trackback_post', $wpdb->insert_id);
+	trackback_response(0);
+}
+?>