Add description meta-element to package pages

Implements FS#33294

Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>

4 files changed, 62 insertions, 35 deletions

diff --git a/web/html/packages.php b/web/html/packages.php
index 61825501..c1e54e1b 100644
--- a/web/html/packages.php
+++ b/web/html/packages.php
@@ -20,9 +20,12 @@ if (!isset($pkgid) || !isset($pkgname)) {
 	}
 }
 
-# Set the title to the current query if required
+# Set the title to the current query and get package details if required
+$details = array();
+
 if (isset($pkgname)) {
 	$title = $pkgname;
+	$details = get_package_details($pkgid);
 } else if (!empty($_GET['K'])) {
 	$title = __("Search Criteria") . ": " . $_GET['K'];
 } else {
@@ -93,7 +96,7 @@ if (check_token()) {
 	}
 }
 
-html_header($title);
+html_header($title, $details);
 ?>
 
 <?php if ($output): ?>
@@ -105,10 +108,10 @@ if (isset($pkgid)) {
 	include('pkg_search_form.php');
 	if ($pkgid) {
 		if (isset($_COOKIE["AURSID"])) {
-			package_details($pkgid, $_COOKIE["AURSID"]);
+			display_package_details($pkgid, $details, $_COOKIE["AURSID"]);
 		}
 		else {
-			package_details($pkgid, null);
+			display_package_details($pkgid, $details, null);
 		}
 	} else {
 		print __("Error trying to retrieve package details.")."<br />\n";
diff --git a/web/lib/aur.inc.php b/web/lib/aur.inc.php
index 018d5c82..e3921025 100644
--- a/web/lib/aur.inc.php
+++ b/web/lib/aur.inc.php
@@ -297,7 +297,7 @@ function db_connect() {
  *
  * @return void
  */
-function html_header($title="") {
+function html_header($title="", $details=array()) {
 	global $AUR_LOCATION;
 	global $DISABLE_HTTP_LOGIN;
 	global $LANG;
diff --git a/web/lib/pkgfuncs.inc.php b/web/lib/pkgfuncs.inc.php
index c00c33db..568ca3d1 100644
--- a/web/lib/pkgfuncs.inc.php
+++ b/web/lib/pkgfuncs.inc.php
@@ -432,17 +432,52 @@ function pkgname_is_blacklisted($name, $dbh=NULL) {
 }
 
 /**
+ * Get the package details
+ *
+ * @param string $id The package ID to get description for
+ * @param \PDO $dbh An already established database connection
+ *
+ * @return array The package's details OR error message
+ **/
+function get_package_details($id=0, $dbh=NULL) {
+	if(!$dbh) {
+		$dbh = db_connect();
+	}
+
+	$q = "SELECT Packages.*,Category ";
+	$q.= "FROM Packages,PackageCategories ";
+	$q.= "WHERE Packages.CategoryID = PackageCategories.ID ";
+	$q.= "AND Packages.ID = " . intval($id);
+	$result = $dbh->query($q);
+
+	$row = array();
+
+	if (!$result) {
+		$row['error'] = __("Error retrieving package details.");
+	}
+	else {
+		$row = $result->fetch(PDO::FETCH_ASSOC);
+		if (empty($row)) {
+			$row['error'] = __("Package details could not be found.");
+		}
+	}
+
+	return $row;
+}
+
+/**
  * Display the package details page
  *
  * @global string $AUR_LOCATION The AUR's URL used for notification e-mails
  * @global bool $USE_VIRTUAL_URLS True if using URL rewriting, otherwise false
  * @param string $id The package ID to get details page for
+ * @param array $row Package details retrieved by get_package_details
  * @param string $SID The session ID of the visitor
  * @param \PDO $dbh An already established database connection
  *
  * @return void
  */
-function package_details($id=0, $SID="", $dbh=NULL) {
+function display_package_details($id=0, $row, $SID="", $dbh=NULL) {
 	global $AUR_LOCATION;
 	global $USE_VIRTUAL_URLS;
 
@@ -450,42 +485,28 @@ function package_details($id=0, $SID="", $dbh=NULL) {
 		$dbh = db_connect();
 	}
 
-	$q = "SELECT Packages.*,Category ";
-	$q.= "FROM Packages,PackageCategories ";
-	$q.= "WHERE Packages.CategoryID = PackageCategories.ID ";
-	$q.= "AND Packages.ID = " . intval($id);
-	$result = $dbh->query($q);
-
-	if (!$result) {
-		print "<p>" . __("Error retrieving package details.") . "</p>\n";
+	if (isset($row['error'])) {
+		print "<p>" . $row['error'] . "</p>\n";
 	}
 	else {
-		$row = $result->fetch(PDO::FETCH_ASSOC);
-		if (empty($row)) {
-			print "<p>" . __("Package details could not be found.") . "</p>\n";
+		include('pkg_details.php');
 
-		}
-		else {
-			include('pkg_details.php');
-
-			# Actions Bar
-			if ($SID) {
-				include('actions_form.php');
-				if (isset($_REQUEST['comment']) && check_token()) {
-					$uid = uid_from_sid($SID, $dbh);
-					add_package_comment($id, $uid, $_REQUEST['comment'], $dbh);
-				}
-				include('pkg_comment_form.php');
+		# Actions Bar
+		if ($SID) {
+			include('actions_form.php');
+			if (isset($_REQUEST['comment']) && check_token()) {
+				$uid = uid_from_sid($SID, $dbh);
+				add_package_comment($id, $uid, $_REQUEST['comment'], $dbh);
 			}
+			include('pkg_comment_form.php');
+		}
 
-			# Print Comments
-			$comments = package_comments($id, $dbh);
-			if (!empty($comments)) {
-				include('pkg_comments.php');
-			}
+		# Print Comments
+		$comments = package_comments($id, $dbh);
+		if (!empty($comments)) {
+			include('pkg_comments.php');
 		}
 	}
-	return;
 }
 
 
diff --git a/web/template/header.php b/web/template/header.php
index 92cb2ff8..9cefedcb 100644
--- a/web/template/header.php
+++ b/web/template/header.php
@@ -10,6 +10,9 @@
 	<link rel='shortcut icon' href='/images/favicon.ico' />
 	<link rel='alternate' type='application/rss+xml' title='Newest Packages RSS' href='<?= get_uri('/rss/'); ?>' />
 	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<?php if (isset($details['Description']) && !empty($details['Description'])): ?>
+	<meta name="description" content="<?= htmlspecialchars($details['Description']) ?>" />
+<?php endif; ?>
   </head>
 	<body>
 		<div id="archnavbar" class="anb-aur">