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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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Preamble
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How to Apply These Terms to Your New Programs
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<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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<?php
/*
* Name: [Beta] Oekaki
* Author: Shish
* Description: ChibiPaint-based Oekaki uploader
*/
class Oekaki extends SimpleExtension {
public function onPageRequest($event) {
global $user, $page;
if($event->page_matches("oekaki")) {
if(!$this->can_upload($user)) {
$this->theme->display_permission_denied($page);
}
if($event->get_arg(0) == "create") {
$this->theme->display_page();
}
if($event->get_arg(0) == "upload") {
// FIXME: this allows anyone to upload anything to /data ...
// hardcoding the ext to .png should stop the obvious exploit,
// but more checking may be wise
if(isset($_FILES["picture"])) {
header('Content-type: text/plain');
$uploaddir = './data/oekaki_unclaimed/';
if(!file_exists($uploaddir)) mkdir($uploaddir, 0755, true);
$file = $_FILES['picture']['name'];
$ext = (strpos($file, '.') === FALSE) ? '' : substr($file, strrpos($file, '.'));
$uploadname = $_SERVER['REMOTE_ADDR'] . "." . time();
$uploadfile = $uploaddir . $uploadname;
log_info("oekaki", "Uploading file [$uploadname]");
$success = TRUE;
if (isset($_FILES["chibifile"]))
$success = $success && move_uploaded_file($_FILES['chibifile']['tmp_name'], $uploadfile . ".chi");
// hardcode the ext, so nobody can upload "foo.php"
$success = $success && move_uploaded_file($_FILES['picture']['tmp_name'], $uploadfile . ".png"); # $ext);
if ($success) {
echo "CHIBIOK\n";
} else {
echo "CHIBIERROR\n";
}
}
else {
echo "CHIBIERROR No Data\n";
}
}
if($event->get_arg(0) == "claim") {
// FIXME: move .chi to data/oekaki/$ha/$hash mirroring images and thumbs
// FIXME: .chi viewer?
// FIXME: clean out old unclaimed images?
$pattern = './data/oekaki_unclaimed/' . $_SERVER['REMOTE_ADDR'] . ".*.png";
foreach(glob($pattern) as $tmpname) {
assert(file_exists($tmpname));
$pathinfo = pathinfo($tmpname);
if(!array_key_exists('extension', $pathinfo)) {
throw new UploadException("File has no extension");
}
log_info("oekaki", "Processing file [{$pathinfo['filename']}]");
$metadata['filename'] = 'oekaki.png';
$metadata['extension'] = $pathinfo['extension'];
$metadata['tags'] = 'oekaki tagme';
$metadata['source'] = null;
$event = new DataUploadEvent($user, $tmpname, $metadata);
send_event($event);
if($event->image_id == -1) {
throw new UploadException("File type not recognised");
}
else {
unlink($tmpname);
$page->set_mode("redirect");
$page->set_redirect(make_link("post/view/".$event->image_id));
}
}
}
}
}
// FIXME: "edit this image" button on existing images?
function onPostListBuilding($event) {
if($this->can_upload($user)) {
$this->theme->display_block($page);
}
}
private function can_upload($user) {
global $config;
return ($config->get_bool("upload_anon") || !$user->is_anonymous());
}
}
?>

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ChibiPaint
Copyright (c) 2006-2008 Marc Schefer
This file is part of ChibiPaint.
ChibiPaint is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
ChibiPaint is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ChibiPaint. If not, see <http://www.gnu.org/licenses/>.
CHIBIPAINT
ChibiPaint is an oekaki applet. A software that allows people to draw and paint online and share the result with
other art enthusiasts. It's designed to be integrated with an oekaki board, a web server running dedicated software.
Several are available but we don't currently provide an integrated solution for ChibiPaint.
INTEGRATION
ChibiPaint is still in the alpha stage of its development and the following integration specs are likely to evolve
in the future.
APPLET PARAMETERS
Here's an example on how to integrate the applet in a html webpage
<applet archive="chibipaint.jar" code="chibipaint.ChibiPaint.class" width="800" height="600">
<param name="canvasWidth" value="400" />
<param name="canvasHeight" value="300" />
<param name="postUrl" value="http://yourserver/oekaki/cpget.php" />
<param name="exitUrl" value="http://yourserver/oekaki/" />
<param name="exitUrlTarget" value="_self" />
<param name="loadImage" value="http://yourserver/oekaki/pictures/168.png" />
<param name="loadChibiFile" value="http://yourserver/oekaki/pictures/168.chi" />
JAVA NOT SUPPORTED! <!-- alternative content for users who don't have Java installed -->
</applet>
The parameters are:
canvasWidth - width of the area on which users can draw (currently capped to 1024)
canvasHeight - height of the area on which users can draw (currently capped to 1024)
postUrl - url that will be used to post the resulting files (see below for more details)
exitUrl - after sending the oekaki the user will be redirected to that url
exitUrlTarget - optional target to allow different frames configuration
loadImage - an image (png format) that will be loaded in the applet to be edited
loadChibiFile - a chibifile format (.chi) multi-layer image that will be loaded in the applet to be edited
NOTE: The last two parameters can be omited when they don't apply. If both loadImage and loadChibiFile are specified,
loadChibiFile takes precedence
POST FORMAT
The applet will send the resulting png file and optionally a multi-layer chibifile format file.
The files are sent as a regular multipart HTTP POST file upload, similar to the one used by form based file uploads
for ease of processing by the server side script.
The form data name for the png file is 'picture' and 'chibifile' for the multilayer file. The recommended extension
for chibifiles is '.chi'
The applet expects the server to answer with the single line reply "CHIBIOK" followed by a newline character.
"CHIBIERROR" followed by an error message on the same list is the planned way to report an error but currently the
applet will just ignore the error message and report a failure on any reply except CHIBIOK.
PHP EXAMPLE
Here's an example of how a php script might handle the applet's POST
<?php
if (isset($_FILES["picture"]))
{
header ('Content-type: text/plain');
$uploaddir = $_SERVER["DOCUMENT_ROOT"].'/oekaki/pictures/';
$file = $_FILES['picture']['name'];
$ext = (strpos($file, '.') === FALSE) ? '' : substr($file, strrpos($file, '.'));
$uploadfile = $uploaddir . time();
$success = TRUE;
if (isset($_FILES["chibifile"]))
$success = $success && move_uploaded_file($_FILES['chibifile']['tmp_name'], $uploadfile . ".chi");
$success = $success && move_uploaded_file($_FILES['picture']['tmp_name'], $uploadfile . $ext);
if ($success) {
echo "CHIBIOK\n";
} else {
echo "CHIBIERROR\n";
}
}
else
echo "CHIBIERROR No Data\n";
?>
CONTACT INFORMATION
Author: Marc Schefer (codexus@codexus.com)

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<?php
class OekakiTheme extends Themelet {
public function display_page() {
global $config, $page;
$base_href = get_base_href();
$http_base = make_http($base_href);
$html = "
<applet archive='$base_href/ext/oekaki/chibipaint.jar' code='chibipaint.ChibiPaint.class' width='800' height='600'>
<param name='canvasWidth' value='400' />
<param name='canvasHeight' value='300' />
<param name='postUrl' value='".make_http(make_link("oekaki/upload"))."' />
<param name='exitUrl' value='".make_http(make_link("oekaki/claim"))."' />
<param name='exitUrlTarget' value='_self' />
JAVA NOT SUPPORTED! <!-- alternative content for users who don't have Java installed -->
</applet>
";
# <param name='loadImage' value='http://yourserver/oekaki/pictures/168.png' />
# <param name='loadChibiFile' value='http://yourserver/oekaki/pictures/168.chi' />
$page->set_title("Oekaki");
$page->set_heading("Oekiaki");
$page->add_block(new NavBlock());
$page->add_block(new Block("Oekaki", $html, "main", 20));
}
public function display_block() {
global $page;
$page->add_block(new Block(null, "<a href='".make_link("oekaki/create")."'>Open Oekaki</a>", "left", 21)); // upload is 20
}
}
?>