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Added fixedapp.php (reseed script)

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This commit is contained in:
meeh
2012-09-26 15:59:59 +00:00
parent d3e535ae6e
commit c845f4963e
1 changed files with 201 additions and 0 deletions
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netdb.i2p2/fixedapp.php Normal file
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@ -0,0 +1,201 @@
<?php
# Reseed script
#
define('DATABASE', '/var/www/reseed.db');
define('NUM_ROUTERS', 50);
define('NETDB_DIR', '/home/i2p/.i2p/netDb');
define('DEBUG', false);
/*
-------------------------------------
Add following to .htaccess:
Options +FollowSymlinks
RewriteEngine On
RewriteRule ^(.*\.dat)$ /index.php?file=$1 [L]
RewriteCond %{REQUEST_FILENAME} !index.php
RewriteCond %{REQUEST_FILENAME} !robots.txt
-------------------------------------
Do not touch if you don't know what you're doing.
*/
# Database handle
class ReseedDatabase extends SQLite3
{
protected $db;
protected $createStatement1 = 'create table client (ip string, whn int)';
protected $createStatement2 = 'create table entry (whn int, wht string)';
public function __construct($file, $flags = SQLITE3_OPEN_READONLY)
{
parent::__construct($file, $flags);
$this->busyTimeout(10000);
// this only has to happen once, no sense calling it on every request
//$this->_create();
}
public function insertEntry($time, $entry)
{
$results = $this->exec(sprintf('insert into entry (whn,wht) values (%d,"%s")', $time, $entry));
if ($results == true) return true;
return false;
}
public function insertClient($time, $host)
{
$results = $this->exec(sprintf('insert into client (ip,whn) values ("%s",%d)', $host, $time));
if ($results == true) return true;
return false;
}
public function getEntries($time)
{
$results = $this->query(sprintf('select * from entry where whn = "%s"', $time));
if ($results instanceof SQLite3Result) {
$t = array();
while ($j = $results->fetchArray(SQLITE3_ASSOC)) {
$t[] = $j;
}
return $t;
}
return false;
}
public function getEntriesFromClient($host)
{
$results = $this->query(sprintf('select e.wht from entry e, client c where c.whn=e.whn and c.ip = "%s"', $host));
if ($results instanceof SQLite3Result) {
$t = array();
while ($j = $results->fetchArray(SQLITE3_ASSOC)) {
$t[] = $j['wht'];
}
return $t;
}
return false;
}
public function getClient($host)
{
$results = $this->query(sprintf('select * from client where ip = "%s"', $host));
if ($results instanceof SQLite3Result) return $results->fetchArray();
return false;
}
public function cleanup()
{
$this->exec(sprintf('delete from client where whn < %d', (time() - 3600)));
$this->exec(sprintf('delete from entry where whn < %d', (time() - 7200)));
}
private function _create()
{
if ($this->query('select * from entry') == false && $this->query('select * from client') == false) {
$this->exec($this->createStatement1);
$this->exec($this->createStatement2);
}
}
}
$user_agent = $_SERVER['HTTP_USER_AGENT'];
$remote_ip = $_SERVER["REMOTE_ADDR"];
if (true !== DEBUG && !strstr($user_agent, 'Wget/1.11.4')) {
header('HTTP/1.0 400 Access Denied');
header('Content-Type: text/plain');
die("Access denied.");
}
// if they're requesting a file, let's try to send it to them
if (isset($_GET['file'])) {
// sanitize the input filename
$file = htmlentities($_GET['file'], ENT_QUOTES, 'UTF-8', false);
$file = str_replace('..', '', str_replace('/', '', $file));
$file = realpath(NETDB_DIR . DIRECTORY_SEPARATOR . $file);
$filename = basename($file);
// make sure they are requesting a real file
if (!$file || empty($filename) ||
NETDB_DIR !== substr($file, 0, strlen(NETDB_DIR)) ||
preg_match("/^routerInfo-(.+)\=.dat$/", $filename) !== 1 ||
!file_exists($file) ||
is_dir($file)
) {
header('HTTP/1.0 404 Not Found');
header('Content-Type: text/plain');
die('Not found.');
}
$db = new ReseedDatabase(DATABASE, SQLITE3_OPEN_READONLY);
$res = $db->getEntriesFromClient($remote_ip);
$db->close();
unset($db);
if ($res === false || !in_array($filename, $res)) {
header('HTTP/1.0 404 Not Found');
header('Content-Type: text/plain');
die('Not found.');
}
header('Content-Type: application/octet-stream');
header('Content-Transfer-Encoding: binary');
header('Content-Length: ' . filesize($file));
header(sprintf('Content-Disposition: attachment; filename="%s"', $filename));
ob_clean();
flush();
readfile($file);
die();
}
$page = '<html><head><title>NetDB</title></head><body><ul>%s</ul></body></html>';
$entry = '<li><a href="%s">%s</a></li>';
$db = new ReseedDatabase(DATABASE, SQLITE3_OPEN_READONLY);
if ($db->getClient($remote_ip) === false) {
$time = time();
$db->close();
unset($db);
$db = new ReseedDatabase(DATABASE, SQLITE3_OPEN_READWRITE);
$db->insertClient($time, $remote_ip);
$db->close();
unset($db);
# generate new list
$clientRouterList = array();
if (is_dir(NETDB_DIR) && is_readable(NETDB_DIR)) {
$clientRouterList = array_map('basename', glob(NETDB_DIR . DIRECTORY_SEPARATOR . 'routerInfo-*=.dat', GLOB_ERR));
}
$db = new ReseedDatabase(DATABASE, SQLITE3_OPEN_READWRITE);
foreach (array_rand($clientRouterList, NUM_ROUTERS) as $router) {
$db->insertEntry($time, $clientRouterList[$router]);
}
} else {
// run cleanup 50% of requests
if (rand(0, 100) < 50) {
$db->close();
unset($db);
$db = new ReseedDatabase(DATABASE, SQLITE3_OPEN_READWRITE);
$db->cleanup();
}
}
// to release locks
$db->close();
unset($db);
$db = new ReseedDatabase(DATABASE, SQLITE3_OPEN_READONLY);
# use old list based on date in database, i.e. sends the same as before
$clientRouterList = $db->getEntriesFromClient($remote_ip);
$db->close();
unset($db);
header('Content-Type: text/html');
die(sprintf($page, implode('', array_map(function($single) use ($entry) { return sprintf($entry, $single, $single);}, $clientRouterList))));