gnu-social/actions/newnotice.php

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<?php
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/**
* Laconica, the distributed open-source microblogging tool
*
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* Handler for posting new notices
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Personal
* @package Laconica
* @author Evan Prodromou <evan@controlyourself.ca>
* @author Zach Copley <zach@controlyourself.ca>
* @author Sarven Capadisli <csarven@controlyourself.ca>
* @copyright 2008-2009 Control Yourself, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://laconi.ca/
*/
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if (!defined('LACONICA')) {
exit(1);
}
require_once INSTALLDIR.'/lib/noticelist.php';
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/**
* Action for posting new notices
*
* @category Personal
* @package Laconica
* @author Evan Prodromou <evan@controlyourself.ca>
* @author Zach Copley <zach@controlyourself.ca>
* @author Sarven Capadisli <csarven@controlyourself.ca>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://laconi.ca/
*/
class NewnoticeAction extends Action
{
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/**
* Error message, if any
*/
var $msg = null;
/**
* Title of the page
*
* Note that this usually doesn't get called unless something went wrong
*
* @return string page title
*/
function title()
{
return _('New notice');
}
/**
* Handle input, produce output
*
* Switches based on GET or POST method. On GET, shows a form
* for posting a notice. On POST, saves the results of that form.
*
* Results may be a full page, or just a single notice list item,
* depending on whether AJAX was requested.
*
* @param array $args $_REQUEST contents
*
* @return void
*/
function handle($args)
{
if (!common_logged_in()) {
$this->clientError(_('Not logged in.'));
} else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
// check for this before token since all POST and FILES data
// is losts when size is exceeded
if (empty($_POST) && $_SERVER['CONTENT_LENGTH']) {
$this->clientError(sprintf(_('The server was unable to handle ' .
'that much POST data (%s bytes) due to its current configuration.'),
$_SERVER['CONTENT_LENGTH']));
}
parent::handle($args);
// CSRF protection
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
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$this->clientError(_('There was a problem with your session token. '.
'Try again, please.'));
}
try {
$this->saveNewNotice();
} catch (Exception $e) {
$this->showForm($e->getMessage());
return;
}
} else {
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$this->showForm();
}
}
function isSupportedFileType() {
require_once 'MIME/Type.php';
$filetype = MIME_Type::autoDetect($_FILES['attach']['tmp_name']);
if (in_array($filetype, common_config('attachments', 'supported'))) {
return true;
}
$media = MIME_Type::getMedia($filetype);
if ('application' !== $media) {
$hint = sprintf(_(' Try using another %s format.'), $media);
} else {
$hint = '';
}
$this->clientError(sprintf(
_('%s is not a supported filetype on this server.'), $filetype) . $hint);
}
function isRespectsQuota($user) {
if ($_FILES['attach']['size'] > common_config('attachments', 'file_quota')) {
$this->clientError(sprintf(_('No file may be larger than %d bytes ' .
'and the file you sent was %d bytes. Try to upload a smaller version.'),
common_config('attachments', 'file_quota'), $_FILES['attach']['size']));
}
$query = "select sum(size) as total from file join file_to_post on file_to_post.file_id = file.id join notice on file_to_post.post_id = notice.id where profile_id = {$user->id} and file.url like '%/notice/%/file'";
$file = new File;
$file->query($query);
$file->fetch();
$total = $file->total + $_FILES['attach']['size'];
if ($total > common_config('attachments', 'user_quota')) {
$this->clientError(sprintf(_('A file this large would exceed your user quota of %d bytes.'), common_config('attachments', 'user_quota')));
}
$query .= ' month(modified) = month(now()) and year(modified) = year(now())';
$file2 = new File;
$file2->query($query);
$file2->fetch();
$total2 = $file2->total + $_FILES['attach']['size'];
if ($total2 > common_config('attachments', 'monthly_quota')) {
$this->clientError(sprintf(_('A file this large would exceed your monthly quota of %d bytes.'), common_config('attachments', 'monthly_quota')));
}
return true;
}
function isValidFileAttached($user) {
return isset($_FILES['attach']['error'])
&& ($_FILES['attach']['error'] === UPLOAD_ERR_OK)
&& $this->isSupportedFileType()
&& $this->isRespectsQuota($user);
}
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/**
* Save a new notice, based on arguments
*
* If successful, will show the notice, or return an Ajax-y result.
* If not, it will show an error message -- possibly Ajax-y.
*
* Also, if the notice input looks like a command, it will run the
* command and show the results -- again, possibly ajaxy.
*
* @return void
*/
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function saveNewNotice()
{
$user = common_current_user();
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assert($user); // XXX: maybe an error instead...
$content = $this->trimmed('status_textarea');
if (!$content) {
$this->clientError(_('No content!'));
} else {
$content_shortened = common_shorten_links($content);
if (mb_strlen($content_shortened) > 140) {
$this->clientError(_('That\'s too long. '.
'Max notice size is 140 chars.'));
}
}
$inter = new CommandInterpreter();
$cmd = $inter->handle_command($user, $content_shortened);
if ($cmd) {
if ($this->boolean('ajax')) {
$cmd->execute(new AjaxWebChannel($this));
} else {
$cmd->execute(new WebChannel($this));
}
return;
}
$replyto = $this->trimmed('inreplyto');
#If an ID of 0 is wrongly passed here, it will cause a database error,
#so override it...
if ($replyto == 0) {
$replyto = 'false';
}
switch ($_FILES['attach']['error']) {
case UPLOAD_ERR_NO_FILE:
// no file uploaded
// nothing to do
break;
case UPLOAD_ERR_OK:
// file was uploaded alright
// lets check if we really support its format
// and it doesn't go over quotas
if (!$this->isValidFileAttached($user)) {
die('clientError() should trigger an exception before reaching here.');
}
break;
case UPLOAD_ERR_INI_SIZE:
$this->clientError(_('The uploaded file exceeds the upload_max_filesize directive in php.ini.'));
case UPLOAD_ERR_FORM_SIZE:
$this->clientError(_('The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form.'));
case UPLOAD_ERR_PARTIAL:
$this->clientError(_('The uploaded file was only partially uploaded.'));
case UPLOAD_ERR_NO_TMP_DIR:
$this->clientError(_('Missing a temporary folder.'));
case UPLOAD_ERR_CANT_WRITE:
$this->clientError(_('Failed to write file to disk.'));
case UPLOAD_ERR_EXTENSION:
$this->clientError(_('File upload stopped by extension.'));
default:
die('Should never reach here.');
}
$notice = Notice::saveNew($user->id, $content_shortened, 'web', 1,
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($replyto == 'false') ? null : $replyto);
if (is_string($notice)) {
$this->clientError($notice);
}
$this->storeFile($notice);
$this->saveUrls($notice);
common_broadcast_notice($notice);
if ($this->boolean('ajax')) {
$this->startHTML('text/xml;charset=utf-8');
$this->elementStart('head');
$this->element('title', null, _('Notice posted'));
$this->elementEnd('head');
$this->elementStart('body');
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$this->showNotice($notice);
$this->elementEnd('body');
$this->elementEnd('html');
} else {
$returnto = $this->trimmed('returnto');
if ($returnto) {
$url = common_local_url($returnto,
array('nickname' => $user->nickname));
} else {
$url = common_local_url('shownotice',
array('notice' => $notice->id));
}
common_redirect($url, 303);
}
}
function storeFile($notice) {
if (UPLOAD_ERR_NO_FILE === $_FILES['attach']['error']) return;
$filename = basename($_FILES['attach']['name']);
$destination = "file/{$notice->id}-$filename";
if (move_uploaded_file($_FILES['attach']['tmp_name'], INSTALLDIR . "/$destination")) {
$file = new File;
$file->url = common_local_url('file', array('notice' => $notice->id));
$file->size = filesize(INSTALLDIR . "/$destination");
$file->date = time();
$file->mimetype = $_FILES['attach']['type'];
if ($file_id = $file->insert()) {
$file_redir = new File_redirection;
$file_redir->url = common_path($destination);
$file_redir->file_id = $file_id;
$file_redir->insert();
$f2p = new File_to_post;
$f2p->file_id = $file_id;
$f2p->post_id = $notice->id;
$f2p->insert();
} else {
$this->clientError(_('There was a database error while saving your file. Please try again.'));
}
}
}
/** save all urls in the notice to the db
*
* follow redirects and save all available file information
* (mimetype, date, size, oembed, etc.)
*
* @param class $notice Notice to pull URLs from
*
* @return void
*/
function saveUrls($notice, $uploaded = null) {
common_replace_urls_callback($notice->content, array($this, 'saveUrl'), $notice->id);
}
function saveUrl($data) {
list($url, $notice_id) = $data;
$zzz = File::processNew($url, $notice_id);
}
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/**
* Show an Ajax-y error message
*
* Goes back to the browser, where it's shown in a popup.
*
* @param string $msg Message to show
*
* @return void
*/
function ajaxErrorMsg($msg)
{
$this->startHTML('text/xml;charset=utf-8', true);
$this->elementStart('head');
$this->element('title', null, _('Ajax Error'));
$this->elementEnd('head');
$this->elementStart('body');
$this->element('p', array('id' => 'error'), $msg);
$this->elementEnd('body');
$this->elementEnd('html');
}
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/**
* Formerly page output
*
* This used to be the whole page output; now that's been largely
* subsumed by showPage. So this just stores an error message, if
* it was passed, and calls showPage.
*
* Note that since we started doing Ajax output, this page is rarely
* seen.
*
* @param string $msg An error message, if any
*
* @return void
*/
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function showForm($msg=null)
{
if ($msg && $this->boolean('ajax')) {
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$this->ajaxErrorMsg($msg);
return;
}
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$this->msg = $msg;
$this->showPage();
}
/**
* Overload for replies or bad results
*
* We show content in the notice form if there were replies or results.
*
* @return void
*/
function showNoticeForm()
{
$content = $this->trimmed('status_textarea');
if (!$content) {
$replyto = $this->trimmed('replyto');
$profile = Profile::staticGet('nickname', $replyto);
if ($profile) {
$content = '@' . $profile->nickname . ' ';
}
}
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$notice_form = new NoticeForm($this, '', $content);
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$notice_form->show();
}
/**
* Show an error message
*
* Shows an error message if there is one.
*
* @return void
*
* @todo maybe show some instructions?
*/
function showPageNotice()
{
if ($this->msg) {
$this->element('p', array('id' => 'error'), $this->msg);
}
}
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/**
* Output a notice
*
* Used to generate the notice code for Ajax results.
*
* @param Notice $notice Notice that was saved
*
* @return void
*/
function showNotice($notice)
{
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$nli = new NoticeListItem($notice, $this);
$nli->show();
}
}