mirror of
https://github.com/vichan-devel/vichan.git
synced 2024-11-24 15:40:12 +01:00
742 lines
25 KiB
PHP
742 lines
25 KiB
PHP
<?php
|
||
function sprintf3($str, $vars, $delim = '%') {
|
||
$replaces = array();
|
||
foreach($vars as $k => $v) {
|
||
$replaces[$delim . $k . $delim] = $v;
|
||
}
|
||
return str_replace(array_keys($replaces),
|
||
array_values($replaces), $str);
|
||
}
|
||
|
||
function setupBoard($array) {
|
||
global $board;
|
||
|
||
$board = Array(
|
||
'id' => $array['id'],
|
||
'uri' => $array['uri'],
|
||
'name' => $array['title'],
|
||
'title' => $array['subtitle']);
|
||
|
||
$board['dir'] = sprintf(BOARD_PATH, $board['uri']);
|
||
$board['url'] = sprintf(BOARD_ABBREVIATION, $board['uri']);
|
||
|
||
if(!file_exists($board['dir'])) mkdir($board['dir'], 0777);
|
||
if(!file_exists($board['dir'] . DIR_IMG)) @mkdir($board['dir'] . DIR_IMG, 0777) or error("Couldn't create " . DIR_IMG . ". Check permissions.", true);
|
||
if(!file_exists($board['dir'] . DIR_THUMB)) @mkdir($board['dir'] . DIR_THUMB, 0777) or error("Couldn't create " . DIR_THUMB . ". Check permissions.", true);
|
||
if(!file_exists($board['dir'] . DIR_RES)) @mkdir($board['dir'] . DIR_RES, 0777) or error("Couldn't create " . DIR_RES . ". Check permissions.", true);
|
||
}
|
||
|
||
function openBoard($uri) {
|
||
sql_open();
|
||
|
||
$query = prepare("SELECT * FROM `boards` WHERE `uri` = :uri LIMIT 1");
|
||
$query->bindValue(':uri', $uri);
|
||
$query->execute() or error(db_error($query));
|
||
|
||
if($board = $query->fetch()) {
|
||
setupBoard($board);
|
||
return true;
|
||
} else return false;
|
||
}
|
||
|
||
function listBoards() {
|
||
$query = query("SELECT * FROM `boards`") or error(db_error());
|
||
$boards = $query->fetchAll();
|
||
return $boards;
|
||
}
|
||
|
||
function until($timestamp) {
|
||
$difference = $timestamp - time();
|
||
if($difference < 60) {
|
||
return $difference . ' second' . ($difference != 1 ? 's' : '');
|
||
} elseif($difference < 60*60) {
|
||
return ($num = round($difference/(60))) . ' minute' . ($num != 1 ? 's' : '');
|
||
} elseif($difference < 60*60*24) {
|
||
return ($num = round($difference/(60*60))) . ' hour' . ($num != 1 ? 's' : '');
|
||
} elseif($difference < 60*60*24*7) {
|
||
return ($num = round($difference/(60*60*24))) . ' day' . ($num != 1 ? 's' : '');
|
||
} elseif($difference < 60*60*24*7*52) {
|
||
return ($num = round($difference/(60*60*24*7))) . ' week' . ($num != 1 ? 's' : '');
|
||
} else {
|
||
return ($num = round($difference/(60*60*24*7*52))) . ' year' . ($num != 1 ? 's' : '');
|
||
}
|
||
}
|
||
|
||
function formatDate($timestamp) {
|
||
return date('jS F, Y', $timestamp);
|
||
}
|
||
|
||
function checkBan() {
|
||
if(!isset($_SERVER['REMOTE_ADDR'])) {
|
||
// Server misconfiguration
|
||
return;
|
||
}
|
||
|
||
$query = prepare("SELECT * FROM `bans` WHERE `ip` = :ip LIMIT 1");
|
||
$query->bindValue(':ip', $_SERVER['REMOTE_ADDR']);
|
||
$query->execute() or error(db_error($query));
|
||
|
||
if($ban = $query->fetch()) {
|
||
if($ban['expires'] && $ban['expires'] < time()) {
|
||
// Ban expired
|
||
$query = prepare("DELETE FROM `bans` WHERE `ip` = :ip AND `expires` = :expires LIMIT 1");
|
||
$query->bindValue(':ip', $_SERVER['REMOTE_ADDR']);
|
||
$query->bindValue(':expires', $ban['expires'], PDO::PARAM_INT);
|
||
$query->execute() or error(db_error($query));
|
||
return;
|
||
}
|
||
$body = '<div class="ban">
|
||
<h2>You are banned! ;_;</h2>
|
||
<p>You have been banned ' .
|
||
($ban['reason'] ? 'for the following reason:' : 'for an unspecified reason.') .
|
||
'</p>' .
|
||
($ban['reason'] ?
|
||
'<p class="reason">' .
|
||
$ban['reason'] .
|
||
'</p>'
|
||
: '') .
|
||
'<p>Your ban was filed on <strong>' .
|
||
formatDate($ban['set']) .
|
||
'</strong>, and ' .
|
||
($ban['expires'] ?
|
||
'expires on <strong>' .
|
||
formatDate($ban['expires']) .
|
||
'</strong>, which is ' . until($ban['expires']) . ' from now'
|
||
: '<em>will not expire</em>' ) .
|
||
'.</p>
|
||
<p>Your IP address is <strong>' . $_SERVER['REMOTE_ADDR'] . '</strong>.</p>
|
||
</div>';
|
||
|
||
// Show banned page and exit
|
||
die(Element('page.html', Array(
|
||
'index' => ROOT,
|
||
'title' => 'Banned',
|
||
'subtitle' => 'You are banned!',
|
||
'body' => $body
|
||
)
|
||
));
|
||
}
|
||
}
|
||
|
||
function threadLocked($id) {
|
||
global $board;
|
||
|
||
$query = prepare(sprintf("SELECT `locked` FROM `posts_%s` WHERE `id` = :id AND `thread` IS NULL LIMIT 1", $board['uri']));
|
||
$query->bindValue(':id', $id, PDO::PARAM_INT);
|
||
$query->execute() or error(db_error());
|
||
|
||
if(!$post = $query->fetch()) {
|
||
// Non-existant, so it can't be locked...
|
||
return false;
|
||
}
|
||
|
||
return (bool) $post['locked'];
|
||
}
|
||
|
||
function threadExists($id) {
|
||
global $board;
|
||
|
||
$query = prepare(sprintf("SELECT 1 FROM `posts_%s` WHERE `id` = :id AND `thread` IS NULL LIMIT 1", $board['uri']));
|
||
$query->bindValue(':id', $id, PDO::PARAM_INT);
|
||
$query->execute() or error(db_error());
|
||
|
||
if($query->rowCount()) {
|
||
return true;
|
||
} else return false;
|
||
}
|
||
|
||
function post($post, $OP) {
|
||
global $pdo, $board;
|
||
|
||
$query = prepare(sprintf("INSERT INTO `posts_%s` VALUES ( NULL, :thread, :subject, :email, :name, :trip, :body, :time, :time, :thumb, :thumbwidth, :thumbheight, :file, :width, :height, :filesize, :filename, :filehash, :password, :ip, :sticky, :locked)", $board['uri']));
|
||
|
||
// Basic stuff
|
||
$query->bindValue(':subject', $post['subject']);
|
||
$query->bindValue(':email', $post['email']);
|
||
$query->bindValue(':name', $post['name']);
|
||
$query->bindValue(':trip', $post['trip']);
|
||
$query->bindValue(':body', $post['body']);
|
||
$query->bindValue(':time', time(), PDO::PARAM_INT);
|
||
$query->bindValue(':password', $post['password']);
|
||
$query->bindValue(':ip', $_SERVER['REMOTE_ADDR']);
|
||
|
||
if($post['mod'] && $post['sticky']) {
|
||
$query->bindValue(':sticky', 1, PDO::PARAM_INT);
|
||
} else {
|
||
$query->bindValue(':sticky', 0, PDO::PARAM_INT);
|
||
}
|
||
|
||
if($post['mod'] && $post['locked']) {
|
||
$query->bindValue(':locked', 1, PDO::PARAM_INT);
|
||
} else {
|
||
$query->bindValue(':locked', 0, PDO::PARAM_INT);
|
||
}
|
||
|
||
if($OP) {
|
||
// No parent thread, image
|
||
$query->bindValue(':thread', null, PDO::PARAM_NULL);
|
||
} else {
|
||
$query->bindValue(':thread', $post['thread'], PDO::PARAM_INT);
|
||
}
|
||
|
||
if($post['has_file']) {
|
||
$query->bindValue(':thumb', $post['thumb']);
|
||
$query->bindValue(':thumbwidth', $post['thumbwidth'], PDO::PARAM_INT);
|
||
$query->bindValue(':thumbheight', $post['thumbheight'], PDO::PARAM_INT);
|
||
$query->bindValue(':file', $post['file']);
|
||
$query->bindValue(':width', $post['width'], PDO::PARAM_INT);
|
||
$query->bindValue(':height', $post['height'], PDO::PARAM_INT);
|
||
$query->bindValue(':filesize', $post['filesize'], PDO::PARAM_INT);
|
||
$query->bindValue(':filename', $post['filename']);
|
||
$query->bindValue(':filehash', $post['filehash']);
|
||
} else {
|
||
$query->bindValue(':thumb', null, PDO::PARAM_NULL);
|
||
$query->bindValue(':thumbwidth', null, PDO::PARAM_NULL);
|
||
$query->bindValue(':thumbheight', null, PDO::PARAM_NULL);
|
||
$query->bindValue(':file', null, PDO::PARAM_NULL);
|
||
$query->bindValue(':width', null, PDO::PARAM_NULL);
|
||
$query->bindValue(':height', null, PDO::PARAM_NULL);
|
||
$query->bindValue(':filesize', null, PDO::PARAM_NULL);
|
||
$query->bindValue(':filename', null, PDO::PARAM_NULL);
|
||
$query->bindValue(':filehash', null, PDO::PARAM_NULL);
|
||
}
|
||
|
||
$query->execute() or error(db_error($query));
|
||
|
||
return $pdo->lastInsertId();
|
||
}
|
||
|
||
function bumpThread($id) {
|
||
global $board;
|
||
$query = prepare(sprintf("UPDATE `posts_%s` SET `bump` = :time WHERE `id` = :id AND `thread` IS NULL", $board['uri']));
|
||
$query->bindValue(':time', time(), PDO::PARAM_INT);
|
||
$query->bindValue(':id', $id, PDO::PARAM_INT);
|
||
$query->execute() or error(db_error($query));
|
||
}
|
||
|
||
function index($page, $mod=false) {
|
||
global $board;
|
||
|
||
$body = '';
|
||
$offset = round($page*THREADS_PER_PAGE-THREADS_PER_PAGE);
|
||
|
||
sql_open();
|
||
|
||
$query = prepare(sprintf("SELECT * FROM `posts_%s` WHERE `thread` IS NULL ORDER BY `sticky` DESC, `bump` DESC LIMIT ?,?", $board['uri']));
|
||
$query->bindValue(1, $offset, PDO::PARAM_INT);
|
||
$query->bindValue(2, THREADS_PER_PAGE, PDO::PARAM_INT);
|
||
$query->execute() or error(db_error($query));
|
||
|
||
if($query->rowcount() < 1 && $page > 1) return false;
|
||
while($th = $query->fetch()) {
|
||
$thread = new Thread($th['id'], $th['subject'], $th['email'], $th['name'], $th['trip'], $th['body'], $th['time'], $th['thumb'], $th['thumbwidth'], $th['thumbheight'], $th['file'], $th['filewidth'], $th['fileheight'], $th['filesize'], $th['filename'], $th['ip'], $th['sticky'], $th['locked'], $mod ? '?/' : ROOT, $mod);
|
||
|
||
$posts = prepare(sprintf("SELECT `id`, `subject`, `email`, `name`, `trip`, `body`, `time`, `thumb`, `thumbwidth`, `thumbheight`, `file`, `filewidth`, `fileheight`, `filesize`, `filename`,`ip` FROM `posts_%s` WHERE `thread` = ? ORDER BY `time` DESC LIMIT ?", $board['uri']));
|
||
$posts->bindValue(1, $th['id']);
|
||
$posts->bindValue(2, THREADS_PREVIEW, PDO::PARAM_INT);
|
||
$posts->execute() or error(db_error($posts));
|
||
|
||
if($posts->rowCount() == THREADS_PREVIEW) {
|
||
$count = prepare(sprintf("SELECT COUNT(`id`) as `num` FROM `posts_%s` WHERE `thread` = ?", $board['uri']));
|
||
$count->bindValue(1, $th['id']);
|
||
$count->execute() or error(db_error($count));
|
||
|
||
$count = $count->fetch();
|
||
$omitted = $count['num'] - THREADS_PREVIEW;
|
||
$thread->omitted = $omitted;
|
||
unset($count);
|
||
unset($omitted);
|
||
}
|
||
|
||
while($po = $posts->fetch()) {
|
||
$thread->add(new Post($po['id'], $th['id'], $po['subject'], $po['email'], $po['name'], $po['trip'], $po['body'], $po['time'], $po['thumb'], $po['thumbwidth'], $po['thumbheight'], $po['file'], $po['filewidth'], $po['fileheight'], $po['filesize'], $po['filename'], $po['ip'], $mod ? '?/' : ROOT, $mod));
|
||
}
|
||
|
||
$thread->posts = array_reverse($thread->posts);
|
||
$body .= $thread->build(true);
|
||
}
|
||
|
||
return Array('button'=>BUTTON_NEWTOPIC, 'board'=>$board, 'body'=>$body, 'post_url' => POST_URL, 'index' => ROOT);
|
||
}
|
||
|
||
function getPages($mod=false) {
|
||
global $board;
|
||
|
||
// Count threads
|
||
$query = query(sprintf("SELECT COUNT(`id`) as `num` FROM `posts_%s` WHERE `thread` IS NULL", $board['uri'])) or error(db_error());
|
||
|
||
$count = current($query->fetch());
|
||
$count = floor((THREADS_PER_PAGE + $count - 1) / THREADS_PER_PAGE);
|
||
|
||
$pages = Array();
|
||
for($x=0;$x<$count && $x<MAX_PAGES;$x++) {
|
||
$pages[] = Array('num' => $x+1, 'link' => $x==0 ? ($mod ? '?/' : ROOT) . $board['dir'] . FILE_INDEX : ($mod ? '?/' : ROOT) . $board['dir'] . sprintf(FILE_PAGE, $x+1));
|
||
}
|
||
|
||
return $pages;
|
||
}
|
||
|
||
function buildIndex() {
|
||
global $board;
|
||
sql_open();
|
||
|
||
$pages = getPages();
|
||
|
||
$page = 1;
|
||
while($page <= MAX_PAGES && $content = index($page)) {
|
||
$filename = $board['dir'] . ($page==1 ? FILE_INDEX : sprintf(FILE_PAGE, $page));
|
||
if(file_exists($filename)) $md5 = md5_file($filename);
|
||
|
||
$content['pages'] = $pages;
|
||
@file_put_contents($filename, Element('index.html', $content)) or error("Couldn't write to file.");
|
||
|
||
if(isset($md5) && $md5 == md5_file($filename)) {
|
||
break;
|
||
}
|
||
$page++;
|
||
}
|
||
if($page < MAX_PAGES) {
|
||
for(;$page<=MAX_PAGES;$page++) {
|
||
$filename = $page==1 ? FILE_INDEX : sprintf(FILE_PAGE, $page);
|
||
@unlink($filename);
|
||
}
|
||
}
|
||
}
|
||
|
||
function markup(&$body) {
|
||
global $board;
|
||
|
||
$body = utf8tohtml($body, true);
|
||
|
||
if(MARKUP_URLS)
|
||
$body = preg_replace(URL_REGEX, "<a href=\"$0\">$0</a>", $body);
|
||
|
||
if(AUTO_UNICODE) {
|
||
$body = str_replace('...', '…', $body);
|
||
$body = str_replace('<--', '←', $body);
|
||
|
||
// En and em- dashes are rendered exactly the same in
|
||
// most monospace fonts (they look the same in code
|
||
// editors).
|
||
$body = str_replace('---', '—', $body); // em dash
|
||
$body = str_replace('--', '–', $body); // en dash
|
||
}
|
||
|
||
// Cites
|
||
if(preg_match_all('/(^|\s)>>([0-9]+?)(\s|$)/', $body, $cites)) {
|
||
$previousPosition = 0;
|
||
$temp = '';
|
||
sql_open();
|
||
for($index=0;$index<count($cites[0]);$index++) {
|
||
$cite = $cites[2][$index];
|
||
$whitespace = Array(
|
||
strlen($cites[1][$index]),
|
||
strlen($cites[3][$index]),
|
||
);
|
||
$query = prepare(sprintf("SELECT `thread`,`id` FROM `posts_%s` WHERE `id` = :id LIMIT 1", $board['uri']));
|
||
$query->bindValue(':id', $cite);
|
||
$query->execute() or error(db_error($query));
|
||
|
||
if($post = $query->fetch()) {
|
||
$replacement = '<a onclick="highlightReply(\''.$cite.'\');" href="' . ROOT . $board['dir'] . DIR_RES . ($post['thread']?$post['thread']:$post['id']) . '.html#' . $cite . '">>>' . $cite . '</a>';
|
||
} else {
|
||
$replacement = ">>{$cite}";
|
||
}
|
||
|
||
// Find the position of the cite
|
||
$position = strpos($body, $cites[0][$index]);
|
||
|
||
|
||
|
||
// Replace the found string with "xxxx[...]". (allows duplicate tags). Keeps whitespace.
|
||
$body = substr_replace($body, str_repeat('x', strlen($cites[0][$index]) - $whitespace[0] - $whitespace[1]), $position + $whitespace[0], strlen($cites[0][$index]) - $whitespace[0] - $whitespace[1]);
|
||
|
||
$temp .= substr($body, $previousPosition, $position-$previousPosition) . $cites[1][$index] . $replacement . $cites[3][$index];
|
||
$previousPosition = $position+strlen($cites[0][$index]);
|
||
}
|
||
|
||
// The rest
|
||
$temp .= substr($body, $previousPosition);
|
||
|
||
$body = $temp;
|
||
}
|
||
|
||
$body = str_replace("\r", '', $body);
|
||
|
||
$body = preg_replace("/(^|\n)([\s]+)?(>)([^\n]+)?($|\n)/m", '$1$2<span class="quote">$3$4</span>$5', $body);
|
||
|
||
if(WIKI_MARKUP) {
|
||
$body = preg_replace("/(^|\n)==(.+?)==\n?/m", "<h2>$2</h2>", $body);
|
||
$body = preg_replace("/'''(.+?)'''/m", "<strong>$1</strong>", $body);
|
||
$body = preg_replace("/''(.+?)''/m", "<em>$1</em>", $body);
|
||
}
|
||
$body = preg_replace("/\n/", '<br/>', $body);
|
||
}
|
||
|
||
function utf8tohtml($utf8, $encodeTags=true) {
|
||
$result = '';
|
||
for ($i = 0; $i < strlen($utf8); $i++) {
|
||
$char = $utf8[$i];
|
||
$ascii = ord($char);
|
||
if ($ascii < 128) {
|
||
// one-byte character
|
||
$result .= ($encodeTags) ? htmlentities($char) : $char;
|
||
} else if ($ascii < 192) {
|
||
// non-utf8 character or not a start byte
|
||
} else if ($ascii < 224) {
|
||
// two-byte character
|
||
$result .= htmlentities(substr($utf8, $i, 2), ENT_QUOTES, 'UTF-8');
|
||
$i++;
|
||
} else if ($ascii < 240) {
|
||
// three-byte character
|
||
$ascii1 = ord($utf8[$i+1]);
|
||
$ascii2 = ord($utf8[$i+2]);
|
||
$unicode = (15 & $ascii) * 4096 +
|
||
(63 & $ascii1) * 64 +
|
||
(63 & $ascii2);
|
||
$result .= "&#$unicode;";
|
||
$i += 2;
|
||
} else if ($ascii < 248) {
|
||
// four-byte character
|
||
$ascii1 = ord($utf8[$i+1]);
|
||
$ascii2 = ord($utf8[$i+2]);
|
||
$ascii3 = ord($utf8[$i+3]);
|
||
$unicode = (15 & $ascii) * 262144 +
|
||
(63 & $ascii1) * 4096 +
|
||
(63 & $ascii2) * 64 +
|
||
(63 & $ascii3);
|
||
$result .= "&#$unicode;";
|
||
$i += 3;
|
||
}
|
||
}
|
||
return $result;
|
||
}
|
||
|
||
function buildThread($id, $return=false, $mod=false) {
|
||
global $board;
|
||
$id = round($id);
|
||
|
||
$query = prepare(sprintf("SELECT `id`,`thread`,`subject`,`name`,`email`,`trip`,`body`,`time`,`thumb`,`thumbwidth`,`thumbheight`,`file`,`filewidth`,`fileheight`,`filesize`,`filename`,`ip`,`sticky`,`locked` FROM `posts_%s` WHERE (`thread` IS NULL AND `id` = :id) OR `thread` = :id ORDER BY `thread`,`time`", $board['uri']));
|
||
$query->bindValue(':id', $id, PDO::PARAM_INT);
|
||
$query->execute() or error(db_error($query));
|
||
|
||
while($post = $query->fetch()) {
|
||
if(!isset($thread)) {
|
||
$thread = new Thread($post['id'], $post['subject'], $post['email'], $post['name'], $post['trip'], $post['body'], $post['time'], $post['thumb'], $post['thumbwidth'], $post['thumbheight'], $post['file'], $post['filewidth'], $post['fileheight'], $post['filesize'], $post['filename'], $post['ip'], $post['sticky'], $post['locked'], $mod ? '?/' : ROOT, $mod);
|
||
} else {
|
||
$thread->add(new Post($post['id'], $thread->id, $post['subject'], $post['email'], $post['name'], $post['trip'], $post['body'], $post['time'], $post['thumb'], $post['thumbwidth'], $post['thumbheight'], $post['file'], $post['filewidth'], $post['fileheight'], $post['filesize'], $post['filename'], $post['ip'], $mod ? '?/' : ROOT, $mod));
|
||
}
|
||
}
|
||
|
||
// Check if any posts were found
|
||
if(!isset($thread)) error(ERROR_NONEXISTANT);
|
||
|
||
$body = Element('thread.html', Array(
|
||
'button'=>BUTTON_REPLY,
|
||
'board'=>$board,
|
||
'body'=>$thread->build(),
|
||
'post_url' => POST_URL,
|
||
'index' => ROOT,
|
||
'id' => $id,
|
||
'mod' => $mod,
|
||
'return' => ($mod ? '?' . $board['url'] . FILE_INDEX : ROOT . $board['uri'] . '/' . FILE_INDEX)
|
||
));
|
||
|
||
if($return)
|
||
return $body;
|
||
else
|
||
@file_put_contents($board['dir'] . DIR_RES . sprintf(FILE_PAGE, $id), $body) or error("Couldn't write to file.");
|
||
}
|
||
|
||
function generate_tripcode ( $name, $length = 10 ) {
|
||
$name = stripslashes ( $name );
|
||
$t = explode('#', $name);
|
||
$nameo = $t[0];
|
||
if ( isset ( $t[1] ) || isset ( $t[2] ) ) {
|
||
$trip = ( ( strlen ( $t[1] ) > 0 ) ? $t[1] : $t[2] );
|
||
if ( ( function_exists ( 'mb_convert_encoding' ) ) ) {
|
||
# mb_substitute_character('none');
|
||
$recoded_cap = mb_convert_encoding ( $trip, 'Shift_JIS', 'UTF-8' );
|
||
}
|
||
$trip = ( ( ! empty ( $recoded_cap ) ) ? $recoded_cap : $trip );
|
||
$salt = substr ( $trip.'H.', 1, 2 );
|
||
$salt = preg_replace ( '/[^\.-z]/', '.', $salt );
|
||
$salt = strtr ( $salt, ':;<=>?@[\]^_`', 'ABCDEFGabcdef' );
|
||
if ( isset ( $t[2] ) ) {
|
||
// secure
|
||
$trip = '!!' . substr ( crypt ( $trip, '@#$%^&*()' ), ( -1 * $length ) );
|
||
} else {
|
||
// insecure
|
||
$trip = '!' . substr ( crypt ( $trip, $salt ), ( -1 * $length ) );
|
||
}
|
||
}
|
||
if ( isset ( $trip ) ) {
|
||
return array ( $nameo, $trip );
|
||
} else {
|
||
return array ( $nameo );
|
||
}
|
||
}
|
||
|
||
// Highest common factor
|
||
function hcf($a, $b){
|
||
$gcd = 1;
|
||
if ($a>$b) {
|
||
$a = $a+$b;
|
||
$b = $a-$b;
|
||
$a = $a-$b;
|
||
}
|
||
if ($b==(round($b/$a))*$a)
|
||
$gcd=$a;
|
||
else {
|
||
for($i=round($a/2);$i;$i--) {
|
||
if ($a == round($a/$i)*$i && $b == round($b/$i)*$i) {
|
||
$gcd = $i;
|
||
$i = false;
|
||
}
|
||
}
|
||
}
|
||
return $gcd;
|
||
}
|
||
|
||
function fraction($numerator, $denominator, $sep) {
|
||
$gcf = hcf($numerator, $denominator);
|
||
$numerator = $numerator / $gcf;
|
||
$denominator = $denominator / $gcf;
|
||
|
||
return "{$numerator}{$sep}{$denominator}";
|
||
}
|
||
|
||
/*********************************************/
|
||
/* Fonction: imagecreatefrombmp */
|
||
/* Author: DHKold */
|
||
/* Contact: admin@dhkold.com */
|
||
/* Date: The 15th of June 2005 */
|
||
/* Version: 2.0B */
|
||
/*********************************************/
|
||
|
||
function imagecreatefrombmp($filename) {
|
||
if (! $f1 = fopen($filename,"rb")) return FALSE;
|
||
$FILE = unpack("vfile_type/Vfile_size/Vreserved/Vbitmap_offset", fread($f1,14));
|
||
if ($FILE['file_type'] != 19778) return FALSE;
|
||
$BMP = unpack('Vheader_size/Vwidth/Vheight/vplanes/vbits_per_pixel'.
|
||
'/Vcompression/Vsize_bitmap/Vhoriz_resolution'.
|
||
'/Vvert_resolution/Vcolors_used/Vcolors_important', fread($f1,40));
|
||
$BMP['colors'] = pow(2,$BMP['bits_per_pixel']);
|
||
if ($BMP['size_bitmap'] == 0) $BMP['size_bitmap'] = $FILE['file_size'] - $FILE['bitmap_offset'];
|
||
$BMP['bytes_per_pixel'] = $BMP['bits_per_pixel']/8;
|
||
$BMP['bytes_per_pixel2'] = ceil($BMP['bytes_per_pixel']);
|
||
$BMP['decal'] = ($BMP['width']*$BMP['bytes_per_pixel']/4);
|
||
$BMP['decal'] -= floor($BMP['width']*$BMP['bytes_per_pixel']/4);
|
||
$BMP['decal'] = 4-(4*$BMP['decal']);
|
||
if ($BMP['decal'] == 4) $BMP['decal'] = 0;
|
||
|
||
$PALETTE = array();
|
||
if ($BMP['colors'] < 16777216)
|
||
{
|
||
$PALETTE = unpack('V'.$BMP['colors'], fread($f1,$BMP['colors']*4));
|
||
}
|
||
|
||
$IMG = fread($f1,$BMP['size_bitmap']);
|
||
$VIDE = chr(0);
|
||
|
||
$res = imagecreatetruecolor($BMP['width'],$BMP['height']);
|
||
$P = 0;
|
||
$Y = $BMP['height']-1;
|
||
while ($Y >= 0)
|
||
{
|
||
$X=0;
|
||
while ($X < $BMP['width'])
|
||
{
|
||
if ($BMP['bits_per_pixel'] == 24)
|
||
$COLOR = unpack("V",substr($IMG,$P,3).$VIDE);
|
||
elseif ($BMP['bits_per_pixel'] == 16)
|
||
{
|
||
$COLOR = unpack("n",substr($IMG,$P,2));
|
||
$COLOR[1] = $PALETTE[$COLOR[1]+1];
|
||
}
|
||
elseif ($BMP['bits_per_pixel'] == 8)
|
||
{
|
||
$COLOR = unpack("n",$VIDE.substr($IMG,$P,1));
|
||
$COLOR[1] = $PALETTE[$COLOR[1]+1];
|
||
}
|
||
elseif ($BMP['bits_per_pixel'] == 4)
|
||
{
|
||
$COLOR = unpack("n",$VIDE.substr($IMG,floor($P),1));
|
||
if (($P*2)%2 == 0) $COLOR[1] = ($COLOR[1] >> 4) ; else $COLOR[1] = ($COLOR[1] & 0x0F);
|
||
$COLOR[1] = $PALETTE[$COLOR[1]+1];
|
||
}
|
||
elseif ($BMP['bits_per_pixel'] == 1)
|
||
{
|
||
$COLOR = unpack("n",$VIDE.substr($IMG,floor($P),1));
|
||
if (($P*8)%8 == 0) $COLOR[1] = $COLOR[1] >>7;
|
||
elseif (($P*8)%8 == 1) $COLOR[1] = ($COLOR[1] & 0x40)>>6;
|
||
elseif (($P*8)%8 == 2) $COLOR[1] = ($COLOR[1] & 0x20)>>5;
|
||
elseif (($P*8)%8 == 3) $COLOR[1] = ($COLOR[1] & 0x10)>>4;
|
||
elseif (($P*8)%8 == 4) $COLOR[1] = ($COLOR[1] & 0x8)>>3;
|
||
elseif (($P*8)%8 == 5) $COLOR[1] = ($COLOR[1] & 0x4)>>2;
|
||
elseif (($P*8)%8 == 6) $COLOR[1] = ($COLOR[1] & 0x2)>>1;
|
||
elseif (($P*8)%8 == 7) $COLOR[1] = ($COLOR[1] & 0x1);
|
||
$COLOR[1] = $PALETTE[$COLOR[1]+1];
|
||
}
|
||
else
|
||
return FALSE;
|
||
imagesetpixel($res,$X,$Y,$COLOR[1]);
|
||
$X++;
|
||
$P += $BMP['bytes_per_pixel'];
|
||
}
|
||
$Y--;
|
||
$P+=$BMP['decal'];
|
||
}
|
||
fclose($f1);
|
||
|
||
return $res;
|
||
}
|
||
|
||
function createimage($type, $source_pic) {
|
||
$image = false;
|
||
switch($type) {
|
||
case 'jpg':
|
||
case 'jpeg':
|
||
if(!$image = @imagecreatefromjpeg($source_pic)) {
|
||
unlink($source_pic);
|
||
error(ERR_INVALIDIMG);
|
||
}
|
||
break;
|
||
case 'png':
|
||
if(!$image = @imagecreatefrompng($source_pic)) {
|
||
unlink($source_pic);
|
||
error(ERR_INVALIDIMG);
|
||
}
|
||
break;
|
||
case 'gif':
|
||
if(!$image = @imagecreatefromgif($source_pic)) {
|
||
unlink($source_pic);
|
||
error(ERR_INVALIDIMG);
|
||
}
|
||
break;
|
||
case 'bmp':
|
||
if(!$image = @imagecreatefrombmp($source_pic)) {
|
||
unlink($source_pic);
|
||
error(ERR_INVALIDIMG);
|
||
}
|
||
break;
|
||
default:
|
||
error('Unknwon file extension.');
|
||
}
|
||
return $image;
|
||
}
|
||
|
||
function resize($src, $width, $height, $destination_pic, $max_width, $max_height) {
|
||
$return = Array();
|
||
|
||
$x_ratio = $max_width / $width;
|
||
$y_ratio = $max_height / $height;
|
||
|
||
if(($width <= $max_width) && ($height <= $max_height)) {
|
||
$tn_width = $width;
|
||
$tn_height = $height;
|
||
} elseif (($x_ratio * $height) < $max_height) {
|
||
$tn_height = ceil($x_ratio * $height);
|
||
$tn_width = $max_width;
|
||
} else {
|
||
$tn_width = ceil($y_ratio * $width);
|
||
$tn_height = $max_height;
|
||
}
|
||
|
||
$return['width'] = $tn_width;
|
||
$return['height'] = $tn_height;
|
||
|
||
$tmp = imagecreatetruecolor($tn_width, $tn_height);
|
||
imagecolortransparent($tmp, imagecolorallocatealpha($tmp, 0, 0, 0, 0));
|
||
imagealphablending($tmp, false);
|
||
imagesavealpha($tmp, true);
|
||
|
||
imagecopyresampled($tmp, $src, 0, 0, 0, 0, $tn_width, $tn_height, $width, $height);
|
||
|
||
imagepng($tmp, $destination_pic, 4);
|
||
imagedestroy($src);
|
||
imagedestroy($tmp);
|
||
|
||
return $return;
|
||
}
|
||
|
||
function imagebmp(&$img, $filename='') {
|
||
$widthOrig = imagesx($img);
|
||
$widthFloor = ((floor($widthOrig/16))*16);
|
||
$widthCeil = ((ceil($widthOrig/16))*16);
|
||
$height = imagesy($img);
|
||
|
||
$size = ($widthCeil*$height*3)+54;
|
||
|
||
// Bitmap File Header
|
||
$result = 'BM'; // header (2b)
|
||
$result .= int_to_dword($size); // size of file (4b)
|
||
$result .= int_to_dword(0); // reserved (4b)
|
||
$result .= int_to_dword(54); // byte location in the file which is first byte of IMAGE (4b)
|
||
// Bitmap Info Header
|
||
$result .= int_to_dword(40); // Size of BITMAPINFOHEADER (4b)
|
||
$result .= int_to_dword($widthCeil); // width of bitmap (4b)
|
||
$result .= int_to_dword($height); // height of bitmap (4b)
|
||
$result .= int_to_word(1); // biPlanes = 1 (2b)
|
||
$result .= int_to_word(24); // biBitCount = {1 (mono) or 4 (16 clr ) or 8 (256 clr) or 24 (16 Mil)} (2b
|
||
$result .= int_to_dword(0); // RLE COMPRESSION (4b)
|
||
$result .= int_to_dword(0); // width x height (4b)
|
||
$result .= int_to_dword(0); // biXPelsPerMeter (4b)
|
||
$result .= int_to_dword(0); // biYPelsPerMeter (4b)
|
||
$result .= int_to_dword(0); // Number of palettes used (4b)
|
||
$result .= int_to_dword(0); // Number of important colour (4b)
|
||
|
||
// is faster than chr()
|
||
$arrChr = array();
|
||
for($i=0; $i<256; $i++){
|
||
$arrChr[$i] = chr($i);
|
||
}
|
||
|
||
// creates image data
|
||
$bgfillcolor = array('red'=>0, 'green'=>0, 'blue'=>0);
|
||
|
||
// bottom to top - left to right - attention blue green red !!!
|
||
$y=$height-1;
|
||
for ($y2=0; $y2<$height; $y2++) {
|
||
for ($x=0; $x<$widthFloor; ) {
|
||
$rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
|
||
$result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
|
||
$rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
|
||
$result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
|
||
$rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
|
||
$result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
|
||
$rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
|
||
$result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
|
||
$rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
|
||
$result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
|
||
$rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
|
||
$result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
|
||
$rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
|
||
$result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
|
||
$rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
|
||
$result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
|
||
}
|
||
for ($x=$widthFloor; $x<$widthCeil; $x++) {
|
||
$rgb = ($x<$widthOrig) ? imagecolorsforindex($img, imagecolorat($img, $x, $y)) : $bgfillcolor;
|
||
$result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
|
||
}
|
||
$y--;
|
||
}
|
||
|
||
// see imagegif
|
||
if($filename == '') {
|
||
echo $result;
|
||
} else {
|
||
$file = fopen($filename, 'wb');
|
||
fwrite($file, $result);
|
||
fclose($file);
|
||
}
|
||
}
|
||
// imagebmp helpers
|
||
function int_to_dword($n) {
|
||
return chr($n & 255).chr(($n >> 8) & 255).chr(($n >> 16) & 255).chr(($n >> 24) & 255);
|
||
}
|
||
function int_to_word($n) {
|
||
return chr($n & 255).chr(($n >> 8) & 255);
|
||
}
|
||
?>
|