1 files changed, 74 insertions, 0 deletions
diff --git a/library/Director/Web/Table/Dependency/Html.php b/library/Director/Web/Table/Dependency/Html.php
new file mode 100644
index 0000000..092f799
--- /dev/null
+++ b/library/Director/Web/Table/Dependency/Html.php
@@ -0,0 +1,74 @@
+<?php
+
+namespace Icinga\Module\Director\Web\Table\Dependency;
+
+use Icinga\Web\Url;
+use InvalidArgumentException;
+
+/**
+ * Minimal HTML helper, as we might be forced to run without ipl
+ */
+class Html
+{
+    public static function tag($tag, $attributes = [], $escapedContent = null)
+    {
+        $result = "<$tag";
+        if (! empty($attributes)) {
+            foreach ($attributes as $name => $value) {
+                if (! preg_match('/^[a-z][a-z0-9:-]*$/i', $name)) {
+                    throw new InvalidArgumentException("Invalid attribute name: '$name'");
+                }
+
+                $result .= " $name=\"" . self::escapeAttributeValue($value) . '"';
+            }
+        }
+
+        return "$result>$escapedContent</$tag>";
+    }
+
+    public static function webUrl($path, $params)
+    {
+        return Url::fromPath($path, $params);
+    }
+
+    public static function link($escapedLabel, $url, $attributes = [])
+    {
+        return static::tag('a', [
+            'href' => $url,
+        ] + $attributes, $escapedLabel);
+    }
+
+    public static function linkToGitHub($escapedLabel, $namespace, $repository)
+    {
+        return static::link(
+            $escapedLabel,
+            'https://github.com/' . urlencode($namespace) . '/' . urlencode($repository),
+            [
+                'target' => '_blank',
+                'rel'    => 'noreferrer',
+                'class'  => 'icon-forward'
+            ]
+        );
+    }
+
+    protected static function escapeAttributeValue($value)
+    {
+        $value = str_replace('"', '&quot;', $value);
+        // Escape ambiguous ampersands
+        return preg_replace_callback('/&[0-9A-Z]+;/i', function ($match) {
+            $subject = $match[0];
+
+            if (htmlspecialchars_decode($subject, ENT_COMPAT | ENT_HTML5) === $subject) {
+                // Ambiguous ampersand
+                return str_replace('&', '&amp;', $subject);
+            }
+
+            return $subject;
+        }, $value);
+    }
+
+    public static function escape($any)
+    {
+        return htmlspecialchars($any);
+    }
+}