added app for admins to create a zipfile containing the owncloud data

apps/admin_export/appinfo/app.php

@@ -0,0 +1,33 @@
+<?php
+
+/**
+* ownCloud - user_ldap
+*
+* @author Dominik Schmidt
+* @copyright 2011 Dominik Schmidt dev@dominik-schmidt.de
+*
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+* License as published by the Free Software Foundation; either
+* version 3 of the License, or any later version.
+*
+* This library is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+*
+* You should have received a copy of the GNU Affero General Public
+* License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+
+OC_APP::registerAdmin('admin_export','settings');
+
+// add settings page to navigation
+$entry = array(
+	'id' => "admin_export_settings",
+	'order'=>1,
+	'href' => OC_Helper::linkTo( "admin_export", "settings.php" ),
+	'name' => 'Export'
+);

apps/admin_export/appinfo/info.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<info>
+	<id>admin_export</id>
+	<name>Import/Export</name>
+	<description>Import/Export your owncloud data</description>
+	<version>0.1</version>
+	<licence>AGPL</licence>
+	<author>Thomas Schmidt</author>
+	<require>2</require>
+</info>

apps/admin_export/settings.php

@@ -0,0 +1,94 @@
+<?php
+
+/**
+ * ownCloud - admin export
+ *
+ * @author Thomas Schmidt
+ * @copyright 2011 Thomas Schmidt tom@opensuse.org
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+if (isset($_POST['admin_export'])) {
+    $root = OC::$SERVERROOT . "/";
+    $zip = new ZipArchive();
+    $filename = sys_get_temp_dir() . "/owncloud_export_" . date("y-m-d_H-i-s") . ".zip";
+    error_log("Creating export file at: " . $filename);
+    if ($zip->open($filename, ZIPARCHIVE::CREATE) !== TRUE) {
+	exit("Cannot open <$filename>\n");
+    }
+
+    if (isset($_POST['owncloud_system'])) {
+	// adding owncloud system files
+	error_log("Adding owncloud system files to export");
+	zipAddDir($root, $zip, false);
+	foreach (array(".git", "3rdparty", "apps", "core", "files", "l10n", "lib", "ocs", "search", "settings", "tests") as $dirname) {
+	    zipAddDir($root . $dirname, $zip, true, basename($root) . "/");
+	}
+    }
+
+    if (isset($_POST['owncloud_config'])) {
+	// adding owncloud config
+	// todo: add database export
+	error_log("Adding owncloud config to export");
+	zipAddDir($root . "config/", $zip, true, basename($root) . "/");
+	$zip->addFile($root . '/data/.htaccess', basename($root) . "/data/owncloud.db");
+    }
+
+    if (isset($_POST['user_files'])) {
+	// adding user files
+	$zip->addFile($root . '/data/.htaccess', basename($root) . "/data/.htaccess");
+	$zip->addFile($root . '/data/index.html', basename($root) . "/data/index.html");
+	foreach (OC_User::getUsers() as $i) {
+	    error_log("Adding owncloud user files of $i to export");
+	    zipAddDir($root . "data/" . $i, $zip, true, basename($root) . "/data/");
+	}
+    }
+
+    $zip->close();
+
+    header("Content-Type: application/zip");
+    header("Content-Disposition: attachment; filename=" . basename($filename));
+    header("Content-Length: " . filesize($filename));
+    ob_end_clean();
+    readfile($filename);
+    unlink($filename);
+} else {
+// fill template
+    $tmpl = new OC_Template('admin_export', 'settings');
+    return $tmpl->fetchPage();
+}
+
+function zipAddDir($dir, $zip, $recursive=true, $internalDir='') {
+    $dirname = basename($dir);
+    $zip->addEmptyDir($internalDir . $dirname);
+    $internalDir.=$dirname.='/';
+
+    if ($dirhandle = opendir($dir)) {
+	while (false !== ( $file = readdir($dirhandle))) {
+
+	    if (( $file != '.' ) && ( $file != '..' )) {
+
+		if (is_dir($dir . '/' . $file) && $recursive) {
+		    zipAddDir($dir . '/' . $file, $zip, $recursive, $internalDir);
+		} elseif (is_file($dir . '/' . $file)) {
+		    $zip->addFile($dir . '/' . $file, $internalDir . $file);
+		}
+	    }
+	}
+	closedir($dirhandle);
+    } else {
+	error_log("Was not able to open directory: " . $dir);
+    }
+}

apps/admin_export/templates/settings.php

@@ -0,0 +1,13 @@
+<form id="export" action="#" method="post">
+    <fieldset class="personalblock">
+        <legend><strong>Export this ownCloud instance</strong></legend>
+        <p>This will create a compressed file that contains the data of this owncloud instance.
+            Please choose which components should be included:
+        </p>
+        <p><input type="checkbox" id="user_files" name="user_files" value="true"><label for="user_files">User files</label><br/>
+            <input type="checkbox" id="owncloud_system" name="owncloud_system" value="true"><label for="owncloud_system">ownCloud system files</label><br/>
+            <input type="checkbox" id="owncloud_config" name="owncloud_config" value="true"><label for="owncloud_config">ownCloud configuration</label>
+        </p>
+        <input type="submit" name="admin_export" value="Export" />
+    </fieldset>
+</form>