From 47036c445a2e121ee16a5a25cd8a0f5dde183a91 Mon Sep 17 00:00:00 2001
From: Robert Leverington <roberthl@users.mediawiki.org>
Date: Sun, 8 Feb 2009 23:39:17 +0000
Subject: [PATCH] * (bug 17408) Add $wgShowDebug configuration variable,
 displays debug data at the bottom of the main content area when enabled.

---
 includes/DefaultSettings.php |  7 +++++++
 includes/Skin.php            | 17 ++++++++++++++++-
 includes/SkinTemplate.php    |  2 +-
 3 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/includes/DefaultSettings.php b/includes/DefaultSettings.php
index 2102b2adf2..949fd819bd 100644
--- a/includes/DefaultSettings.php
+++ b/includes/DefaultSettings.php
@@ -1038,6 +1038,13 @@ $wgDebugDumpSql         = false;
  */
 $wgDebugLogGroups       = array();
 
+/**
+ * Display debug data at the bottom of the main content area.
+ *
+ * Useful for developers and technical users trying to working on a closed wiki.
+ */
+$wgShowDebug            = false;
+
 /**
  * Show the contents of $wgHooks in Special:Version
  */
diff --git a/includes/Skin.php b/includes/Skin.php
index 66b2197d80..e326ed806a 100644
--- a/includes/Skin.php
+++ b/includes/Skin.php
@@ -889,13 +889,28 @@ END;
 		return $data;
 	}
 
+	/**
+	 * Generate debug data HTML for displaying at the bottom of the main content
+	 * area.
+	 * @return String HTML containing debug data, if enabled (otherwise empty).
+	 */
+	protected function generateDebugHTML() {
+		global $wgShowDebug, $wgOut;
+		if ( $wgShowDebug ) {
+			$listInternals = str_replace( "\n", "</li>\n<li>", htmlspecialchars( $wgOut->mDebugtext ) );
+			return "\n<hr>\n<strong>Debug data:</strong><ul style=\"font-family:monospace;\"><li>" .
+				$listInternals . "</li></ul>\n";
+		}
+		return '';
+	}
+
 	/**
 	 * This gets called shortly before the </body> tag.
 	 * @return String HTML to be put before </body>
 	 */
 	function afterContent() {
 		$printfooter = "<div class=\"printfooter\">\n" . $this->printFooter() . "</div>\n";
-		return $printfooter . $this->doAfterContent();
+		return $this->generateDebugHTML() . $printfooter . $this->doAfterContent();
 	}
 
 	/**
diff --git a/includes/SkinTemplate.php b/includes/SkinTemplate.php
index 59596718e8..60b3eaa4a0 100644
--- a/includes/SkinTemplate.php
+++ b/includes/SkinTemplate.php
@@ -401,7 +401,7 @@ class SkinTemplate extends Skin {
 		$tpl->set( 'bottomscripts', $this->bottomScripts() );
 
 		$printfooter = "<div class=\"printfooter\">\n" . $this->printSource() . "</div>\n";
-		$out->mBodytext .= $printfooter ;
+		$out->mBodytext .= $printfooter . $this->generateDebugHTML();
 		$tpl->setRef( 'bodytext', $out->mBodytext );
 
 		# Language links
-- 
2.20.1