First commit

1 files changed, 135 insertions, 0 deletions

diff --git a/lib/response.php b/lib/response.php
new file mode 100644
index 00000000..e1b808bf
--- /dev/null
+++ b/lib/response.php
@@ -0,0 +1,135 @@
+<?php
+
+class Response
+{
+    public function forceDownload($filename)
+    {
+        header('Content-Disposition: attachment; filename="'.$filename.'"');
+    }
+
+    public function status($status_code)
+    {
+        if (strpos(php_sapi_name(), 'apache') !== false) {
+            header('HTTP/1.0 '.$status_code);
+        }
+        else {
+            header('Status: '.$status_code);
+        }
+    }
+
+    public function redirect($url)
+    {
+        header('Location: '.$url);
+        exit;
+    }
+
+    public function json(array $data, $status_code = 200)
+    {
+        $this->status($status_code);
+
+        header('Content-Type: application/json');
+        echo json_encode($data);
+
+        exit;
+    }
+
+    public function text($data, $status_code = 200)
+    {
+        $this->status($status_code);
+
+        header('Content-Type: text/plain; charset=utf-8');
+        echo $data;
+
+        exit;
+    }
+
+    public function html($data, $status_code = 200)
+    {
+        $this->status($status_code);
+
+        header('Content-Type: text/html; charset=utf-8');
+        echo $data;
+
+        exit;
+    }
+
+    public function xml($data, $status_code = 200)
+    {
+        $this->status($status_code);
+
+        header('Content-Type: text/xml; charset=utf-8');
+        echo $data;
+
+        exit;
+    }
+
+    public function js($data, $status_code = 200)
+    {
+        $this->status($status_code);
+
+        header('Content-Type: text/javascript; charset=utf-8');
+        echo $data;
+
+        exit;
+    }
+
+    public function binary($data, $status_code = 200)
+    {
+        $this->status($status_code);
+
+        header('Content-Transfer-Encoding: binary');
+        header('Content-Type: application/octet-stream');
+        echo $data;
+
+        exit;
+    }
+
+    public function csp(array $policies = array())
+    {
+        $policies['default-src'] = "'self'";
+        $values = '';
+
+        foreach ($policies as $policy => $hosts) {
+
+            if (is_array($hosts)) {
+
+                $acl = '';
+
+                foreach ($hosts as &$host) {
+
+                    if ($host === '*' || $host === 'self' || strpos($host, 'http') === 0) {
+                        $acl .= $host.' ';
+                    }
+                }
+            }
+            else {
+
+                $acl = $hosts;
+            }
+
+            $values .= $policy.' '.trim($acl).'; ';
+        }
+
+        header('Content-Security-Policy: '.$values);
+    }
+
+    public function nosniff()
+    {
+        header('X-Content-Type-Options: nosniff');
+    }
+
+    public function xss()
+    {
+        header('X-XSS-Protection: 1; mode=block');
+    }
+
+    public function hsts()
+    {
+        header('Strict-Transport-Security: max-age=31536000');
+    }
+
+    public function xframe($mode = 'DENY', array $urls = array())
+    {
+        header('X-Frame-Options: '.$mode.' '.implode(' ', $urls));
+    }
+}