From 633e43127c6d1a96d47587eed2739bdaff6c3d4f Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Sat, 16 Nov 2013 15:42:16 +0100
Subject: Add minilinux download functionality and ipxe compilation scripts

---
 modules/minilinux.inc.php | 86 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 modules/minilinux.inc.php

(limited to 'modules/minilinux.inc.php')

diff --git a/modules/minilinux.inc.php b/modules/minilinux.inc.php
new file mode 100644
index 00000000..3508fb43
--- /dev/null
+++ b/modules/minilinux.inc.php
@@ -0,0 +1,86 @@
+<?php
+
+User::load();
+
+if (!User::hasPermission('superadmin')) {
+	Message::addError('no-permission');
+	Util::redirect('?do=main');
+}
+
+function render_module()
+{
+	$files = array();
+	checkFile($files, 'kernel');
+	checkFile($files, 'initramfs-stage31');
+	checkFile($files, 'stage32.sqfs');
+	checkFile($files, 'vmware.sqfs');
+	Render::addTemplate('page-minilinux', array('files' => $files, 'token' => Session::get('token')));
+}
+
+function checkFile(&$files, $name)
+{
+	static $someId = 0;
+	$remote = CONFIG_REMOTE_ML . "/${name}.md5";
+	$localTarget = CONFIG_HTTP_DIR . "/default/${name}";
+	$local = "${localTarget}.md5";
+	$localLock = "${localTarget}.lck";
+
+	// Maybe already in progress?
+	if (file_exists($localLock)) {
+		$data = explode(' ', file_get_contents($localLock));
+		if (count($data) == 2) {
+			$pid = (int)$data[0];
+			if (posix_kill($pid, 0)) {
+				$files[] = array(
+					'file'     => $name,
+					'id'       => 'id' . $someId++,
+					'pid'      => $pid,
+					'progress' => $data[1]
+				);
+				return true;
+			} else {
+				unlink($localLock);
+			}
+		 } else {
+			unlink($localLock);
+		 }
+	}
+
+	// Not in progress, normal display
+	if (!file_exists($local) || filemtime($local) + 300 < time()) {
+		if (file_exists($localTarget)) {
+			$existingMd5 = md5_file($localTarget);
+		} else {
+			$existingMd5 = '<missing>';
+		}
+		if (file_put_contents($local, $existingMd5) === false) {
+			@unlink($local);
+			Message::addWarning('error-write', $local);
+		}
+	} else {
+		$existingMd5 = file_get_contents($local);
+	}
+	$existingMd5 = strtolower(preg_replace('/[^0-9a-f]/is', '', $existingMd5));
+	$remoteMd5 = Util::download($remote, 3, $code);
+	$remoteMd5 = strtolower(preg_replace('/[^0-9a-f]/is', '', $existingMd5));
+	if ($code != 200) {
+		Message::addError('remote-timeout', $remote);
+		return false;
+	}
+	if ($existingMd5 === $remoteMd5) {
+		// Up to date
+		$files[] = array(
+			'file'     => $name,
+			'id'       => 'id' . $someId++,
+		);
+		return true;
+	}
+	// New version on server
+	$files[] = array(
+		'file'        => $name,
+		'id'          => 'id' . $someId++,
+		'update'      => true
+	);
+	return true;
+}
+
-- 
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