lainchan/post.php

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PHP
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<?php
require 'inc/functions.php';
require 'inc/display.php';
if (file_exists('inc/instance-config.php')) {
require 'inc/instance-config.php';
}
require 'inc/config.php';
require 'inc/template.php';
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require 'inc/database.php';
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require 'inc/user.php';
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// Fix for magic quotes
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if (get_magic_quotes_gpc()) {
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function strip_array($var) {
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return is_array($var) ? array_map("strip_array", $var) : stripslashes($var);
}
$_SESSION = strip_array($_SESSION);
$_GET = strip_array($_GET);
$_POST = strip_array($_POST);
}
if(isset($_POST['post'])) {
if( !isset($_POST['name']) ||
!isset($_POST['email']) ||
!isset($_POST['subject']) ||
!isset($_POST['body']) ||
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!isset($_POST['board']) ||
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!isset($_POST['password'])
) error(ERROR_BOT);
$post = Array('board' => $_POST['board']);
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if(isset($_POST['thread'])) {
$OP = false;
$post['thread'] = round($_POST['thread']);
} else $OP = true;
if(!(($OP && $_POST['post'] == BUTTON_NEWTOPIC) ||
(!$OP && $_POST['post'] == BUTTON_REPLY)))
error(ERROR_BOT);
// Check the referrer
if($OP) {
if(!isset($_SERVER['HTTP_REFERER']) || !preg_match(URL_MATCH, $_SERVER['HTTP_REFERER'])) error(ERROR_BOT);
}
// TODO: Since we're now using static HTML files, we can't give them cookies on their first page view
// Find another anti-spam method.
/*
// Check if he has a valid cookie.
if(!$user['valid']) error(ERROR_BOT);
// Check how long he has been here.
if(time()-$user['appeared']<LURKTIME) error(ERROR_LURK);
*/
// Open database connection
sql_open();
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// Check if banned
checkBan();
// Check if board exists
if(!openBoard($post['board']))
error(ERROR_NOBOARD);
//Check if thread exists
if(!$OP && !threadExists($post['thread']))
error(ERROR_NONEXISTANT);
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// Check for a file
if($OP) {
if(!isset($_FILES['file']['tmp_name']) || empty($_FILES['file']['tmp_name']))
error(ERROR_NOIMAGE);
}
$post['name'] = (!empty($_POST['name'])?$_POST['name']:'Anonymous');
$post['subject'] = $_POST['subject'];
$post['email'] = utf8tohtml($_POST['email']);
$post['body'] = $_POST['body'];
$post['password'] = $_POST['password'];
$post['filename'] = $_FILES['file']['name'];
$post['has_file'] = $OP || !empty($_FILES['file']['tmp_name']);
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$post['mod'] = isset($_POST['mod']) && $_POST['mod'];
if($post['mod']) {
require 'inc/mod.php';
if(!$mod) {
// Liar. You're not a mod.
error(ERROR_NOTAMOD);
}
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$post['sticky'] = $OP && isset($_POST['sticky']);
$post['locked'] = $OP && isset($_POST['lock']);
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}
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if($post['has_file']) {
$size = $_FILES['file']['size'];
if($size > MAX_FILESIZE)
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error(sprintf3(ERR_FILESIZE, array(
'sz'=>commaize($size),
'filesz'=>commaize($size),
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'maxsz'=>commaize(MAX_FILESIZE))));
}
$trip = generate_tripcode($post['name']);
$post['name'] = $trip[0];
$post['trip'] = (isset($trip[1])?$trip[1]:'');
if($post['email'] == 'noko') {
$noko = true;
$post['email'] = '';
} else $noko = false;
if($post['has_file']) {
$post['extension'] = strtolower(substr($post['filename'], strrpos($post['filename'], '.') + 1));
$post['file_id'] = rand(0, 1000000000);
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$post['file'] = $board['dir'] . DIR_IMG . $post['file_id'] . '.' . $post['extension'];
$post['thumb'] = $board['dir'] . DIR_THUMB . $post['file_id'] . '.png';
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$post['zip'] = $OP && $post['has_file'] && ALLOW_ZIP && $post['extension'] == 'zip' ? $post['file'] : false;
if(!($post['zip'] || in_array($post['extension'], $allowed_ext))) error(ERROR_FILEEXT);
}
// Check string lengths
if(strlen($post['name']) > 25) error(sprintf(ERROR_TOOLONG, 'name'));
if(strlen($post['email']) > 30) error(sprintf(ERROR_TOOLONG, 'email'));
if(strlen($post['subject']) > 40) error(sprintf(ERROR_TOOLONG, 'subject'));
if(strlen($post['body']) > MAX_BODY) error(ERROR_TOOLONGBODY);
if(!(!$OP && $post['has_file']) && strlen($post['body']) < 1) error(ERROR_TOOSHORTBODY);
if(strlen($post['password']) > 20) error(sprintf(ERROR_TOOLONG, 'password'));
markup($post['body']);
if($post['has_file']) {
// Just trim the filename if it's too long
if(strlen($post['filename']) > 30) $post['filename'] = substr($post['filename'], 0, 27).'…';
// Move the uploaded file
if(!@move_uploaded_file($_FILES['file']['tmp_name'], $post['file'])) error(ERROR_NOMOVE);
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if($post['zip']) {
// Validate ZIP file
if(is_resource($zip = zip_open($post['zip'])))
// TODO: Check if it's not empty and has at least one (valid) image
zip_close($zip);
else
error(ERR_INVALIDZIP);
$post['file'] = ZIP_IMAGE;
$post['extension'] = strtolower(substr($post['file'], strrpos($post['file'], '.') + 1));
}
$size = @getimagesize($post['file']);
$post['width'] = $size[0];
$post['height'] = $size[1];
// Check if the image is valid
if($post['width'] < 1 || $post['height'] < 1) {
unlink($post['file']);
error(ERR_INVALIDIMG);
}
if($post['width'] > MAX_WIDTH || $post['height'] > MAX_HEIGHT) {
unlink($post['file']);
error(ERR_MAXSIZE);
}
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$hash_function = FILE_HASH;
$post['filehash'] = $hash_function($post['file']);
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$post['filesize'] = filesize($post['file']);
$image = createimage($post['extension'], $post['file']);
if(REDRAW_IMAGE && !$post['zip']) {
switch($post['extension']) {
case 'jpg':
case 'jpeg':
imagejpeg($image, $post['file'], JPEG_QUALITY);
break;
case 'png':
imagepng($image, $post['file'], 7);
break;
case 'gif':
if(REDRAW_GIF)
imagegif($image, $post['file']);
break;
case 'bmp':
imagebmp($image, $post['file']);
break;
default:
error('Unknwon file extension.');
}
}
// Create a thumbnail
$thumb = resize($image, $post['width'], $post['height'], $post['thumb'], THUMB_WIDTH, THUMB_HEIGHT);
$post['thumbwidth'] = $thumb['width'];
$post['thumbheight'] = $thumb['height'];
}
// Remove DIR_* before inserting them into the database.
if($post['has_file']) {
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$post['file'] = substr_replace($post['file'], '', 0, strlen($board['dir'] . DIR_IMG));
$post['thumb'] = substr_replace($post['thumb'], '', 0, strlen($board['dir'] . DIR_THUMB));
}
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// Todo: Validate some more, remove messy code, allow more specific configuration
$id = post($post, $OP);
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if($post['has_file'] && $post['zip']) {
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// Open ZIP
$zip = zip_open($post['zip']);
// Read files
while($entry = zip_read($zip)) {
$filename = basename(zip_entry_name($entry));
$extension = strtolower(substr($filename, strrpos($filename, '.') + 1));
if(in_array($extension, $allowed_ext)) {
if (zip_entry_open($zip, $entry, 'r')) {
// Fake post
$dump_post = Array(
'subject' => $post['subject'],
'email' => $post['email'],
'name' => $post['name'],
'trip' => $post['trip'],
'body' => '',
'thread' => $id,
'password' => '',
'has_file' => true,
'file_id' => rand(0, 1000000000),
'filename' => $filename
);
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$dump_post['file'] = $board['dir'] . DIR_IMG . $dump_post['file_id'] . '.' . $extension;
$dump_post['thumb'] = $board['dir'] . DIR_THUMB . $dump_post['file_id'] . '.png';
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// Extract the image from the ZIP
$fp = fopen($dump_post['file'], 'w+');
fwrite($fp, zip_entry_read($entry, zip_entry_filesize($entry)));
fclose($fp);
$size = @getimagesize($dump_post['file']);
$dump_post['width'] = $size[0];
$dump_post['height'] = $size[1];
// Check if the image is valid
if($dump_post['width'] < 1 || $dump_post['height'] < 1) {
unlink($dump_post['file']);
} else {
if($dump_post['width'] > MAX_WIDTH || $dump_post['height'] > MAX_HEIGHT) {
unlink($dump_post['file']);
error(ERR_MAXSIZE);
} else {
$dump_post['filehash'] = md5_file($dump_post['file']);
$dump_post['filesize'] = filesize($dump_post['file']);
$image = createimage($extension, $dump_post['file']);
$success = true;
if(REDRAW_IMAGE) {
switch($extension) {
case 'jpg':
case 'jpeg':
imagejpeg($image, $dump_post['file'], JPEG_QUALITY);
break;
case 'png':
imagepng($image, $dump_post['file'], 7);
break;
case 'gif':
if(REDRAW_GIF)
imagegif($image, $dump_post['file']);
break;
case 'bmp':
imagebmp($image, $dump_post['file']);
break;
default:
$success = false;
}
}
// Create a thumbnail
$thumb = resize($image, $dump_post['width'], $dump_post['height'], $dump_post['thumb'], THUMB_WIDTH, THUMB_HEIGHT);
$dump_post['thumbwidth'] = $thumb['width'];
$dump_post['thumbheight'] = $thumb['height'];
// Remove DIR_* before inserting them into the database.
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$dump_post['file'] = substr_replace($dump_post['file'], '', 0, strlen($board['dir'] . DIR_IMG));
$dump_post['thumb'] = substr_replace($dump_post['thumb'], '', 0, strlen($board['dir'] . DIR_THUMB));
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// Create the post
post($dump_post, false);
}
}
// Close the ZIP
zip_entry_close($entry);
}
}
}
zip_close($zip);
unlink($post['zip']);
}
buildThread(($OP?$id:$post['thread']));
if(!$OP) {
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bumpThread($post['thread']);
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}
buildIndex();
sql_close();
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$root = $post['mod'] ? ROOT . FILE_MOD . '?/' : ROOT;
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if(ALWAYS_NOKO || $noko) {
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header('Location: ' . $root . $board['dir'] . DIR_RES . ($OP?$id:$post['thread']) . '.html' . (!$OP?'#'.$id:''), true, REDIRECT_HTTP);
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} else {
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header('Location: ' . $root . $board['dir'] . FILE_INDEX, true, REDIRECT_HTTP);
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}
exit;
} else {
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if(!file_exists(HAS_INSTALLED)) {
sql_open();
// Build all boards
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$boards = listBoards();
foreach($boards as &$_board) {
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setupBoard($_board);
buildIndex();
}
sql_close();
touch(HAS_INSTALLED, 0777);
die(Element('page.html', Array(
'index'=>ROOT,
'title'=>'Success',
'body'=>"<center>" .
"<h2>Tinyboard is now installed!</h2>" .
"</center>"
)));
} else {
// They opened post.php in their browser manually.
// Possible TODO: Redirect back to homepage.
error(ERROR_NOPOST);
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}
}
?>