Initial commit

#pma/themes/svg_gradient.php

@@ -0,0 +1,53 @@
+<?php
+/**
+ * Theme based generator for SVG gradient.
+ *
+ * @package PhpMyAdmin-theme
+ */
+header('Content-Type: image/svg+xml');
+header('Expires: ' . gmdate('D, d M Y H:i:s', time() + 3600) . ' GMT');
+
+/**
+ * Gets single color from GET parameters validating it.
+ *
+ * @param string $get_name Name of parameter in request
+ * @param string $default  Default value
+ *
+ * @return string Color name or code.
+ */
+function PMA_gradientGetColor($get_name, $default)
+{
+    // get color from GET args, only alphanumeric characters
+    $opts = array('options' => array('regexp' => '/^[a-z0-9]+$/i'));
+    $color = filter_input(INPUT_GET, $get_name, FILTER_VALIDATE_REGEXP, $opts);
+    if (preg_match('/^[a-f0-9]{6}$/', $color)) {
+        return '#' . $color;
+    }
+    return $color ? $color : $default;
+}
+
+$from = PMA_gradientGetColor('from', 'white');
+$to = PMA_gradientGetColor('to', 'blank');
+
+echo '<?xml version="1.0" ?>';
+?>
+<svg
+    xmlns="http://www.w3.org/2000/svg"
+    preserveAspectRatio="none"
+    version="1.0" width="100%" height="100%">
+    <defs>
+        <linearGradient id="linear-gradient" x1="0%" y1="0%" x2="0%" y2="100%">
+            <stop
+                offset="0%"
+                stop-color="<?php echo $from; ?>"
+                stop-opacity="1"
+            />
+            <stop
+                offset="100%"
+                stop-color="<?php echo $to; ?>"
+                stop-opacity="1"
+            />
+        </linearGradient>
+    </defs>
+    <rect width="100%" height="100%" style="fill:url(#linear-gradient);" />
+</svg>