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<?php
/*
 * Laconica - a distributed open-source microblogging tool
 * Copyright (C) 2008, Controlez-Vous, Inc.
 *
 * 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
 * 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
 * along with this program.	 If not, see <http://www.gnu.org/licenses/>.
 */

if (!defined('LACONICA')) { exit(1); }

require_once INSTALLDIR . '/lib/noticelist.php';

class NewnoticeAction extends Action {

	function handle($args) {
		parent::handle($args);

		if (!common_logged_in()) {
			common_user_error(_('Not logged in.'));
		} else if ($_SERVER['REQUEST_METHOD'] == 'POST') {

			# CSRF protection - token set in common_notice_form()
			$token = $this->trimmed('token');
			if (!$token || $token != common_session_token()) {
				$this->client_error(_('There was a problem with your session token. Try again, please.'));
				return;
			}

			$this->save_new_notice();
		} else {
			$this->show_form();
		}
	}

	function save_new_notice() {

		$user = common_current_user();
		assert($user); # XXX: maybe an error instead...
		$content = $this->trimmed('status_textarea');

		if (!$content) {
			$this->show_form(_('No content!'));
			return;
		} else {
			$content_shortened = common_shorten_links($content);

			if (mb_strlen($content_shortened) > 140) {
				common_debug("Content = '$content_shortened'", __FILE__);
				common_debug("mb_strlen(\$content) = " . mb_strlen($content_shortened), __FILE__);
				$this->show_form(_('That\'s too long. Max notice size is 140 chars.'));
				return;
			}
		}

		$inter = new CommandInterpreter();

		$cmd = $inter->handle_command($user, $content_shortened);

		if ($cmd) {
			if ($this->boolean('ajax')) {
				$cmd->execute(new AjaxWebChannel());
			} else {
				$cmd->execute(new WebChannel());
			}
			return;
		}

		$replyto = $this->trimmed('inreplyto');

		$notice = Notice::saveNew($user->id, $content, 'web', 1, ($replyto == 'false') ? NULL : $replyto);

		if (is_string($notice)) {
			$this->show_form($notice);
			return;
		}

		common_broadcast_notice($notice);

		if ($this->boolean('ajax')) {
			common_start_html('text/xml;charset=utf-8', true);
			common_element_start('head');
			common_element('title', null, _('Notice posted'));
			common_element_end('head');
			common_element_start('body');
			$this->show_notice($notice);
			common_element_end('body');
			common_element_end('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 ajax_error_msg($msg) {
		common_start_html('text/xml;charset=utf-8', true);
		common_element_start('head');
		common_element('title', null, _('Ajax Error'));
		common_element_end('head');
		common_element_start('body');
		common_element('p', array('id' => 'error'), $msg);
		common_element_end('body');
		common_element_end('html');
	}

	function show_top($content=NULL) {
		common_notice_form(NULL, $content);
	}

	function show_form($msg=NULL) {
		if ($msg && $this->boolean('ajax')) {
			$this->ajax_error_msg($msg);
			return;
		}
		$content = $this->trimmed('status_textarea');
		if (!$content) {
			$replyto = $this->trimmed('replyto');
			$profile = Profile::staticGet('nickname', $replyto);
			if ($profile) {
				$content = '@' . $profile->nickname . ' ';
			}
		}
		common_show_header(_('New notice'), NULL, $content,
						   array($this, 'show_top'));
		if ($msg) {
			common_element('p', array('id' => 'error'), $msg);
		}
		common_show_footer();
	}

	function show_notice($notice) {
        $nli = new NoticeListItem($notice);
        $nli->show();
	}

}