Initial commit

#pma/libraries/plugins/transformations/abs/DownloadTransformationsPlugin.php

@@ -0,0 +1,90 @@
+<?php
+/* vim: set expandtab sw=4 ts=4 sts=4: */
+/**
+ * Abstract class for the download transformations plugins
+ *
+ * @package    PhpMyAdmin-Transformations
+ * @subpackage Download
+ */
+namespace PMA\libraries\plugins\transformations\abs;
+
+use PMA\libraries\plugins\TransformationsPlugin;
+
+/**
+ * Provides common methods for all of the download transformations plugins.
+ *
+ * @package PhpMyAdmin
+ */
+abstract class DownloadTransformationsPlugin extends TransformationsPlugin
+{
+    /**
+     * Gets the transformation description of the specific plugin
+     *
+     * @return string
+     */
+    public static function getInfo()
+    {
+        return __(
+            'Displays a link to download the binary data of the column. You can'
+            . ' use the first option to specify the filename, or use the second'
+            . ' option as the name of a column which contains the filename. If'
+            . ' you use the second option, you need to set the first option to'
+            . ' the empty string.'
+        );
+    }
+
+    /**
+     * Does the actual work of each specific transformations plugin.
+     *
+     * @param string $buffer  text to be transformed
+     * @param array  $options transformation options
+     * @param string $meta    meta information
+     *
+     * @return string
+     */
+    public function applyTransformation($buffer, $options = array(), $meta = '')
+    {
+        global $row, $fields_meta;
+
+        if (isset($options[0]) && !empty($options[0])) {
+            $cn = $options[0]; // filename
+        } else {
+            if (isset($options[1]) && !empty($options[1])) {
+                foreach ($fields_meta as $key => $val) {
+                    if ($val->name == $options[1]) {
+                        $pos = $key;
+                        break;
+                    }
+                }
+                if (isset($pos)) {
+                    $cn = $row[$pos];
+                }
+            }
+            if (empty($cn)) {
+                $cn = 'binary_file.dat';
+            }
+        }
+
+        return sprintf(
+            '<a href="transformation_wrapper.php%s&amp;ct=application'
+            . '/octet-stream&amp;cn=%s" title="%s" class="disableAjax">%s</a>',
+            $options['wrapper_link'],
+            htmlspecialchars(urlencode($cn)),
+            htmlspecialchars($cn),
+            htmlspecialchars($cn)
+        );
+    }
+
+
+    /* ~~~~~~~~~~~~~~~~~~~~ Getters and Setters ~~~~~~~~~~~~~~~~~~~~ */
+
+    /**
+     * Gets the transformation name of the specific plugin
+     *
+     * @return string
+     */
+    public static function getName()
+    {
+        return "Download";
+    }
+}