gnu-social/actions/twitapidirect_messages.php

<?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/twitterapi.php');

class Twitapidirect_messagesAction extends TwitterapiAction {

	function is_readonly() {

		static $write_methods = array(	'direct_messages',
										'sent');

		$cmdtext = explode('.', $this->arg('method'));

		if (in_array($cmdtext[0], $write_methods)) {
			return false;
		}

		return true;
	}

	function direct_messages($args, $apidata) {
		parent::handle($args);
		return $this->show_messages($args, $apidata, 'received');
	}

	function sent($args, $apidata) {
		parent::handle($args);
		return $this->show_messages($args, $apidata, 'sent');
	}

	function show_messages($args, $apidata, $type) {

		$user = $apidata['user'];

		$count = $this->arg('count');
		$since = $this->arg('since');
		$since_id = $this->arg('since_id');
		$page = $this->arg('page');

		if (!$page) {
			$page = 1;
		}

		if (!$count) {
			$count = 20;
		}

		$message = new Message();

		$title = null;
		$subtitle = null;
		$link = null;
		$server = common_root_url();

		if ($type == 'received') {
			$message->to_profile = $user->id;
			$title = sprintf(_("Direct messages to %s"), $user->nickname);
			$subtitle = sprintf(_("All the direct messages sent to %s"), $user->nickname);
			$link = $server . $user->nickname . '/inbox';
		} else {
			$message->from_profile = $user->id;
			$title = _('Direct Messages You\'ve Sent');
			$subtitle = sprintf(_("All the direct messages sent from %s"), $user->nickname);
			$link = $server . $user->nickname . '/outbox';
		}

		$message->orderBy('created DESC, id DESC');
		$message->limit((($page-1)*20), $count);
		$message->find();

		switch($apidata['content-type']) {
		 case 'xml':
			$this->show_xml_dmsgs($message);
			break;
		 case 'rss':
			$this->show_rss_dmsgs($message, $title, $link, $subtitle);
			break;
		 case 'atom':
			$this->show_atom_dmsgs($message, $title, $link, $subtitle);
			break;
		 case 'json':
			$this->show_json_dmsgs($message);
			break;
		 default:
			common_user_error(_('API method not found!'), $code = 404);
		}

		exit();
	}

	// had to change this from "new" to "create" to avoid PHP reserved word
	function create($args, $apidata) {
		parent::handle($args);

		if ($_SERVER['REQUEST_METHOD'] != 'POST') {
			$this->client_error(_('This method requires a POST.'), 400, $apidata['content-type']);
			exit();
		}

		$user = $apidata['user'];
		$source = $this->trimmed('source');  // Not supported by Twitter.

		if (!$source) {
			$source = 'api';
		}

		$content = $this->trimmed('text');

		if (!$content) {
			$this->client_error(_('No message text!'), $code = 406, $apidata['content-type']);
		} else if (mb_strlen($status) > 140) {
			$this->client_error(_('That\'s too long. Max message size is 140 chars.'),
				$code = 406, $apidata['content-type']);
			exit();
		}

		$other = $this->get_user($this->trimmed('user'));

		if (!$other) {
			$this->client_error(_('Recipient user not found.'), $code = 403, $apidata['content-type']);
			exit();
		} else if (!$user->mutuallySubscribed($other)) {
			$this->client_error(_('Can\'t send direct messages to users who aren\'t your friend.'),
				$code = 403, $apidata['content-type']);
			exit();
		} else if ($user->id == $other->id) {
			// Sending msgs to yourself is allowed by Twitter
			$this->client_error(_('Don\'t send a message to yourself; just say it to yourself quietly instead.'),
				$code = 403, $apidata['content-type']);
			exit();
		}

		$message = Message::saveNew($user->id, $other->id, $content, $source);

		if (is_string($message)) {
			$this->server_error($message);
			exit();
		}

		$this->notify($user, $other, $message);

		if ($apidata['content-type'] == 'xml') {
			$this->show_single_xml_dmsg($message);
		} elseif ($apidata['content-type'] == 'json') {
			$this->show_single_json_dmsg($message);
		}

		exit();
	}

	function destroy($args, $apidata) {
		parent::handle($args);
		common_server_error(_('API method under construction.'), $code=501);
		exit();
	}

	function show_xml_dmsgs($message) {

		$this->init_document('xml');
		common_element_start('direct-messages', array('type' => 'array'));

		if (is_array($messages)) {
			foreach ($message as $m) {
				$twitter_dm = $this->twitter_dmsg_array($m);
				$this->show_twitter_xml_dmsg($twitter_dm);
			}
		} else {
			while ($message->fetch()) {
				$twitter_dm = $this->twitter_dmsg_array($message);
				$this->show_twitter_xml_dmsg($twitter_dm);
			}
		}

		common_element_end('direct-messages');
		$this->end_document('xml');

	}

	function show_json_dmsgs($message) {

		$this->init_document('json');

		$dmsgs = array();

		if (is_array($message)) {
			foreach ($message as $m) {
				$twitter_dm = $this->twitter_dmsg_array($m);
				array_push($dmsgs, $twitter_dm);
			}
		} else {
			while ($message->fetch()) {
				$twitter_dm = $this->twitter_dmsg_array($message);
				array_push($dmsgs, $twitter_dm);
			}
		}

		$this->show_json_objects($dmsgs);
		$this->end_document('json');

	}

	function show_rss_dmsgs($message, $title, $link, $subtitle) {

		$this->init_document('rss');

		common_element_start('channel');
		common_element('title', NULL, $title);

		common_element('link', NULL, $link);
		common_element('description', NULL, $subtitle);
		common_element('language', NULL, 'en-us');
		common_element('ttl', NULL, '40');

		if (is_array($message)) {
			foreach ($message as $m) {
				$entry = $this->twitter_rss_dmsg_array($m);
				$this->show_twitter_rss_item($entry);
			}
		} else {
			while ($message->fetch()) {
				$entry = $this->twitter_rss_dmsg_array($message);
				$this->show_twitter_rss_item($entry);
			}
		}

		common_element_end('channel');
		$this->end_twitter_rss();

	}

	function show_atom_dmsgs($message, $title, $link, $subtitle) {

		$this->init_document('atom');

		common_element('title', NULL, $title);
		$siteserver = common_config('site', 'server');
		common_element('id', NULL, "tag:$siteserver,2008:DirectMessage");
		common_element('link', array('href' => $link, 'rel' => 'alternate', 'type' => 'text/html'), NULL);
		common_element('updated', NULL, common_date_iso8601(strftime('%c')));
		common_element('subtitle', NULL, $subtitle);

		if (is_array($message)) {
			foreach ($message as $m) {
				$entry = $this->twitter_rss_dmsg_array($m);
				$this->show_twitter_atom_entry($entry);
			}
		} else {
			while ($message->fetch()) {
				$entry = $this->twitter_rss_dmsg_array($message);
				$this->show_twitter_atom_entry($entry);
			}
		}

		$this->end_document('atom');
	}

	// swiped from MessageAction. Should it be place in util.php?
	function notify($from, $to, $message) {
		mail_notify_message($message, $from, $to);
		# XXX: Jabber, SMS notifications... probably queued
	}

}