From dd3c44359190c130bf56609a0d01b97204743264 Mon Sep 17 00:00:00 2001
From: Jo Michael <me@mynetx.net>
Date: Tue, 3 Apr 2012 03:13:06 +0200
Subject: [PATCH] rfe #3507804 Session upload progress (PHP 5.4)

---
 ChangeLog                             |  1 +
 libraries/display_import_ajax.lib.php | 15 ++++++
 libraries/import/upload/session.php   | 76 +++++++++++++++++++++++++++
 3 files changed, 92 insertions(+)
 create mode 100644 libraries/import/upload/session.php

diff --git a/ChangeLog b/ChangeLog
index 77ff6a7e73..8b9485682d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -15,6 +15,7 @@ phpMyAdmin - ChangeLog
 + Patch #3510656 Contest-1: Ignoring foreign keys while dropping tables
 - Bug #3509686 Reverting sort on joined column does not work
 + New transformation: append string
++ rfe #3507804 Session upload progress (PHP 5.4)
 
 3.5.1.0 (not yet released)
 - bug #3510784 [edit] Limit clause ignored when sort order is remembered
diff --git a/libraries/display_import_ajax.lib.php b/libraries/display_import_ajax.lib.php
index a0a4f7a7eb..347c7ffb27 100644
--- a/libraries/display_import_ajax.lib.php
+++ b/libraries/display_import_ajax.lib.php
@@ -27,6 +27,7 @@ $upload_id = uniqid("");
   * list of available plugins
   */
 $plugins = array(
+       "session",
        "uploadprogress",
        "apc",
        "noplugin"
@@ -68,6 +69,20 @@ function PMA_import_uploadprogressCheck()
     }
     return true;
 }
+
+/**
+  * Checks if PHP 5.4 session upload-progress feature is available.
+  *
+  * @return true if PHP 5.4 session upload-progress is available, false if it is not
+  */
+function PMA_import_sessionCheck()
+{
+    if (PMA_PHP_INT_VERSION < 50400 || ! ini_get('session.upload_progress.enabled')) {
+        return false;
+    }
+    return true;
+}
+
 /**
   * Default plugin for handling import. If no other plugin is available, noplugin is used.
   *
diff --git a/libraries/import/upload/session.php b/libraries/import/upload/session.php
new file mode 100644
index 0000000000..50e2cf6dcf
--- /dev/null
+++ b/libraries/import/upload/session.php
@@ -0,0 +1,76 @@
+<?php
+/* vim: set expandtab sw=4 ts=4 sts=4: */
+/**
+*
+* @package PhpMyAdmin
+*/
+if (! defined('PHPMYADMIN')) {
+    exit;
+}
+
+$ID_KEY = ini_get('session.upload_progress.name');
+
+/**
+ * Returns upload status.
+ *
+ * This is implementation for session.upload_progress in PHP 5.4+.
+ *
+ * @param string $id
+ * @return array|null
+ */
+function PMA_getUploadStatus($id)
+{
+    global $SESSION_KEY;
+    global $ID_KEY;
+
+    if (trim($id) == '') {
+        return null;
+    }
+
+    if (! array_key_exists($id, $_SESSION[$SESSION_KEY])) {
+        $_SESSION[$SESSION_KEY][$id] = array(
+                    'id'       => $id,
+                    'finished' => false,
+                    'percent'  => 0,
+                    'total'    => 0,
+                    'complete' => 0,
+                    'plugin'   => $ID_KEY
+        );
+    }
+    $ret = $_SESSION[$SESSION_KEY][$id];
+
+    if (! PMA_import_sessionCheck() || $ret['finished']) {
+        return $ret;
+    }
+
+    $status = false;
+    $sessionkey = ini_get('session.upload_progress.prefix') . $id;
+    
+    if (isset($_SESSION[$sessionkey])) {
+        $status = $_SESSION[$sessionkey];
+    }
+
+    if ($status) {
+        $ret['finished'] = $status['done'];
+        $ret['total']    = $status['content_length'];
+        $ret['complete'] = $status['bytes_processed'];
+
+        if ($ret['total'] > 0) {
+            $ret['percent'] = $ret['complete'] / $ret['total'] * 100;
+        }
+    } else {
+       $ret = array(
+                    'id'       => $id,
+                    'finished' => true,
+                    'percent'  => 100,
+                    'total'    => $ret['total'],
+                    'complete' => $ret['total'],
+                    'plugin'   => $ID_KEY
+                );
+    }
+
+    $_SESSION[$SESSION_KEY][$id] = $ret;
+
+    return $ret;
+}
+?>