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second iteration of nntpchan implementation

pull/40/head
czaks 8 years ago
parent
commit
a779b96370
  1. 24
      inc/config.php
  2. 149
      inc/nntpchan/nntpchan.php
  3. 30
      inc/nntpchan/tests.php
  4. 29
      post.php

24
inc/config.php

@ -1693,6 +1693,11 @@
* ================== * ==================
* NNTPChan settings * NNTPChan settings
* ================== * ==================
*/
/*
* Please keep in mind that NNTPChan support in vichan isn't finished yet / is in an experimental
* state. Please join #nntpchan on Rizon in order to peer with someone.
*/ */
$config['nntpchan'] = array(); $config['nntpchan'] = array();
@ -1703,9 +1708,26 @@
// NNTP server // NNTP server
$config['nntpchan']['server'] = "localhost:1119"; $config['nntpchan']['server'] = "localhost:1119";
// Global dispatch array. Add your boards to it to enable them. // Global dispatch array. Add your boards to it to enable them. Please make
// sure that this setting is set in a global context.
$config['nntpchan']['dispatch'] = array(); // 'overchan.test' => 'test' $config['nntpchan']['dispatch'] = array(); // 'overchan.test' => 'test'
// Trusted peer - an IP address of your NNTPChan instance. This peer will have
// increased capabilities, eg.: will evade spamfilter.
$config['nntpchan']['trusted_peer'] = '127.0.0.1';
// Salt for message ID generation. Keep it long and secure.
$config['nntpchan']['salt'] = 'change_me+please';
// A local message ID domain. Make sure to change it.
$config['nntpchan']['domain'] = 'example.vichan.net';
// An NNTPChan group name.
// Please set this setting in your board/config.php, not globally.
$config['nntpchan']['group'] = false; // eg. 'overchan.test'
/* /*
* ==================== * ====================
* Other/uncategorized * Other/uncategorized

149
inc/nntpchan/nntpchan.php

@ -0,0 +1,149 @@
<?php
/*
* Copyright (c) 2016 vichan-devel
*/
defined('TINYBOARD') or exit;
function gen_msgid($board, $id) {
global $config;
$b = preg_replace("/[^0-9a-zA-Z$]/", 'x', $board);
$salt = sha1($board . "|" . $id . "|" . $config['nntpchan']['salt']);
$salt = substr($salt, 0, 7);
$salt = base_convert($salt, 16, 36);
return "<$b.$id.$salt@".$config['nntpchan']['domain'].">";
}
function gen_nntp($headers, $files) {
if (count($files) == 0) {
}
else if (count($files) == 1 && $files[0]['type'] == 'text/plain') {
$content = $files[0]['text'] . "\r\n";
$headers['Content-Type'] = "text/plain; charset=UTF-8";
}
else {
$boundary = sha1($headers['Message-Id']);
$content = "";
$headers['Content-Type'] = "multipart/mixed; boundary=$boundary";
foreach ($files as $file) {
$content .= "--$boundary\r\n";
if (isset($file['name'])) {
$file['name'] = preg_replace('/[\r\n\0"]/', '', $file['name']);
$content .= "Content-Disposition: form-data; filename=\"$file[name]\"; name=\"attachment\"\r\n";
}
$type = explode('/', $file['type'])[0];
if ($type == 'text') {
$file['type'] .= '; charset=UTF-8';
}
$content .= "Content-Type: $file[type]\r\n";
if ($type != 'text' && $type != 'message') {
$file['text'] = base64_encode($file['text']);
$content .= "Content-Transfer-Encoding: base64\r\n";
}
$content .= "\r\n";
$content .= $file['text'];
$content .= "\r\n";
}
$content .= "--$boundary--\r\n";
$headers['Mime-Version'] = '1.0';
}
//$headers['Content-Length'] = strlen($content);
$headers['Date'] = date('r', $headers['Date']);
$out = "";
foreach ($headers as $id => $val) {
$val = str_replace("\n", "\n\t", $val);
$out .= "$id: $val\r\n";
}
$out .= "\r\n";
$out .= $content;
return $out;
}
function nntp_publish($msg, $id) {
$s = fsockopen("tcp://localhost:1119");
fgets($s);
fputs($s, "MODE STREAM\r\n");
fgets($s);
fputs($s, "TAKETHIS $id\r\n");
fputs($s, $msg);
fputs($s, "\r\n.\r\n");
fgets($s);
fclose($s);
}
function post2nntp($post, $msgid) {
global $config;
$headers = array();
$files = array();
$headers['Message-Id'] = $msgid;
$headers['Newsgroups'] = $config['nntpchan']['group'];
$headers['Date'] = time();
$headers['Subject'] = $post['subject'] ? $post['subject'] : "None";
$headers['From'] = $post['name'] . " <poster@" . $config['nntpchan']['domain'] . ">";
if ($post['email'] == 'sage') {
$headers['X-Sage'] = true;
}
if (!$post['op']) {
// Get muh parent
$query = prepare("SELECT `message_id` FROM ``nntp_references`` WHERE `board` = :board AND `id` = :id");
$query->bindValue(':board', $post['board']);
$query->bindValue(':id', $post['thread']);
$query->execute() or error(db_error($query));
if ($result = $query->fetch(PDO::FETCH_ASSOC)) {
$headers['References'] = $result['message_id'];
}
else {
return false; // We don't have OP. Discarding.
}
}
// Let's parse the body a bit.
$body = trim($post['body_nomarkup']);
$body = preg_replace('/\r?\n/', "\r\n", $body);
$body = preg_replace_callback('@>>(>/([a-zA-Z0-9_+-]+)/)?([0-9]+)@', function($o) use ($post) {
if ($o[1]) {
$board = $o[2];
}
else {
$board = $post['board'];
}
$id = $o[3];
$query = prepare("SELECT `message_id_digest` FROM ``nntp_references`` WHERE `board` = :board AND `id` = :id");
$query->bindValue(':board', $board);
$query->bindValue(':id', $id);
$query->execute() or error(db_error($query));
if ($result = $query->fetch(PDO::FETCH_ASSOC)) {
return ">>".substr($result['message_id_digest'], 0, 16);
}
else {
return $o[0]; // Should send URL imo
}
}, $body);
$body = preg_replace('/>>>>([0-9a-fA-F])+/', '>>\1', $body);
$files[] = array('type' => 'text/plain', 'text' => $body);
foreach ($post['files'] as $id => $file) {
$fc = array();
$fc['type'] = $file['type'];
$fc['text'] = file_get_contents($file['file_path']);
$fc['name'] = $file['name'];
$files[] = $fc;
}
return array($headers, $files);
}

30
inc/nntpchan/tests.php

@ -0,0 +1,30 @@
<?php
define('TINYBOARD', 'fuck yeah');
require_once('nntpchan.php');
die();
$time = time();
echo "\n@@@@ Thread:\n";
echo $m0 = gennntp(["From" => "czaks <marcin@6irc.net>", "Message-Id" => "<1234.0000.".$time."@example.vichan.net>", "Newsgroups" => "overchan.test", "Date" => time(), "Subject" => "None"],
[['type' => 'text/plain', 'text' => "THIS IS A NEW TEST THREAD"]]);
echo "\n@@@@ Single msg:\n";
echo $m1 = gennntp(["From" => "czaks <marcin@6irc.net>", "Message-Id" => "<1234.1234.".$time."@example.vichan.net>", "Newsgroups" => "overchan.test", "Date" => time(), "Subject" => "None", "References" => "<1234.0000.".$time."@example.vichan.net>"],
[['type' => 'text/plain', 'text' => "hello world, with no image :("]]);
echo "\n@@@@ Single msg and pseudoimage:\n";
echo $m2 = gennntp(["From" => "czaks <marcin@6irc.net>", "Message-Id" => "<1234.2137.".$time."@example.vichan.net>", "Newsgroups" => "overchan.test", "Date" => time(), "Subject" => "None", "References" => "<1234.0000.".$time."@example.vichan.net>"],
[['type' => 'text/plain', 'text' => "hello world, now with an image!"],
['type' => 'image/gif', 'text' => base64_decode("R0lGODlhAQABAIAAAAUEBAAAACwAAAAAAQABAAACAkQBADs="), 'name' => "urgif.gif"]]);
echo "\n@@@@ Single msg and two pseudoimages:\n";
echo $m3 = gennntp(["From" => "czaks <marcin@6irc.net>", "Message-Id" => "<1234.1488.".$time."@example.vichan.net>", "Newsgroups" => "overchan.test", "Date" => time(), "Subject" => "None", "References" => "<1234.0000.".$time."@example.vichan.net>"],
[['type' => 'text/plain', 'text' => "hello world, now WITH TWO IMAGES!!!"],
['type' => 'image/gif', 'text' => base64_decode("R0lGODlhAQABAIAAAAUEBAAAACwAAAAAAQABAAACAkQBADs="), 'name' => "urgif.gif"],
['type' => 'image/gif', 'text' => base64_decode("R0lGODlhAQABAIAAAAUEBAAAACwAAAAAAQABAAACAkQBADs="), 'name' => "urgif2.gif"]]);
shoveitup($m0, "<1234.0000.".$time."@example.vichan.net>");
sleep(1);
shoveitup($m1, "<1234.1234.".$time."@example.vichan.net>");
sleep(1);
shoveitup($m2, "<1234.2137.".$time."@example.vichan.net>");
shoveitup($m3, "<1234.1488.".$time."@example.vichan.net>");

29
post.php

@ -13,7 +13,12 @@ if ((!isset($_POST['mod']) || !$_POST['mod']) && $config['board_locked']) {
$dropped_post = false; $dropped_post = false;
// Is it a post coming from NNTP? Let's extract it and pretend it's a normal post.
if (isset($_GET['Newsgroups']) && $config['nntpchan']['enabled']) { if (isset($_GET['Newsgroups']) && $config['nntpchan']['enabled']) {
if ($_SERVER['REMOTE_ADDR'] != $config['nntpchan']['trusted_peer']) {
error("NNTPChan: Forbidden. $_SERVER[REMOTE_ADDR] is not a trusted peer");
}
$_POST = array(); $_POST = array();
$_POST['json_response'] = true; $_POST['json_response'] = true;
@ -1057,7 +1062,31 @@ if (isset($_POST['delete'])) {
$query->bindValue(':message_id_digest', sha1($dropped_post['msgid'])); $query->bindValue(':message_id_digest', sha1($dropped_post['msgid']));
$query->bindValue(':headers', $dropped_post['headers']); $query->bindValue(':headers', $dropped_post['headers']);
$query->execute() or error(db_error($query)); $query->execute() or error(db_error($query));
} // ^^^^^ For inbound posts ^^^^^
elseif ($config['nntpchan']['enabled'] && $config['nntpchan']['group']) {
// vvvvv For outbound posts vvvvv
require_once('inc/nntpchan/nntpchan.php');
$msgid = gen_msgid($post['board'], $post['id']);
list($headers, $files) = post2nntp($post, $msgid);
$message = gen_nntp($headers, $files);
$query = prepare("INSERT INTO ``nntp_references`` (`board`, `id`, `message_id`, `message_id_digest`, `own`, `headers`) VALUES ".
"(:board , :id , :message_id , :message_id_digest , true , :headers)");
$query->bindValue(':board', $post['board']);
$query->bindValue(':id', $post['id']);
$query->bindValue(':message_id', $msgid);
$query->bindValue(':message_id_digest', sha1($msgid));
$query->bindValue(':headers', json_encode($headers));
$query->execute() or error(db_error($query));
// Let's broadcast it!
nntp_publish($message, $msgid);
} }
insertFloodPost($post); insertFloodPost($post);
// Handle cyclical threads // Handle cyclical threads

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