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