Support canonical links to packages

This is more user-friendly than supporting package IDs only and can be
used as a basis to support direct links to AUR packages in places where
links are computer-produced (e.g. Wiki templates).

Addresses FS#21600 and FS#28839.

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

3 files changed, 22 insertions, 2 deletions

diff --git a/web/html/packages.php b/web/html/packages.php
index dc06c7e4..8f3b143d 100644
--- a/web/html/packages.php
+++ b/web/html/packages.php
@@ -10,6 +10,8 @@ check_sid();                      # see if they're still logged in
 # Set the title to the current query if required
 if (isset($_GET['ID']) && ($pkgname = pkgname_from_id($_GET['ID']))) {
 	$title = $pkgname;
+} else if (isset($_GET['N'])) {
+	$title = $pkgname = $_GET['N'];
 } else if (!empty($_GET['K'])) {
 	$title = __("Search Criteria") . ": " . $_GET['K'];
 } else {
@@ -98,6 +100,18 @@ if (isset($_GET['ID'])) {
 			package_details($_GET['ID'], null);
 		}
 	}
+} else if (isset($_GET['N'])) {
+	include('pkg_search_form.php');
+	if (!$pkgid = pkgid_from_name($_GET['N'])) {
+		print __("Error trying to retrieve package details.")."<br />\n";
+	} else {
+		if (isset($_COOKIE["AURSID"])) {
+			package_details($pkgid, $_COOKIE["AURSID"]);
+		}
+		else {
+			package_details($pkgid, null);
+		}
+	}
 } else {
 	if (!isset($_GET['K']) && !isset($_GET['SB'])) {
 		$_GET['SB'] = 'v';
diff --git a/web/template/pkg_comments.php b/web/template/pkg_comments.php
index aed9ca8b..ac6e1de9 100644
--- a/web/template/pkg_comments.php
+++ b/web/template/pkg_comments.php
@@ -36,7 +36,7 @@ while (list($indx, $carr) = each($comments)) { ?>
 </div>
 
 <?php
-$count = package_comments_count($_GET['ID']);
+$count = package_comments_count(isset($_GET['ID']) ? $_GET['ID'] : pkgid_from_name($_GET['N']));
 if ($count > 10 && !isset($_GET['comments'])) {
 	echo '<div class="pgbox">';
 	echo '<a href="'. $_SERVER['REQUEST_URI'] . '&comments=all">'. __('Show all %s comments', $count) . '</a>';
diff --git a/web/template/pkg_details.php b/web/template/pkg_details.php
index 046f836b..230cc2c6 100644
--- a/web/template/pkg_details.php
+++ b/web/template/pkg_details.php
@@ -2,7 +2,13 @@
 $atype = account_from_sid($SID);
 $uid = uid_from_sid($SID);
 
-$pkgid = intval($_REQUEST['ID']);
+if (isset($_REQUEST['ID'])) {
+	$pkgid = intval($_REQUEST['ID']);
+}
+else {
+	$pkgid = pkgid_from_name($_REQUEST['N']);
+}
+
 if ($uid == $row["MaintainerUID"] or
 	($atype == "Developer" or $atype == "Trusted User")) {