gnu-social/classes/Command.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.'/classes/Channel.php');

class Command {
	
	var $user = NULL;
	
	function __construct($user=NULL) {
		$this->user = $user;
	}
	
	function execute($channel) {
		return false;
	}
}

class UnimplementedCommand extends Command {
	function execute($channel) {
		$channel->error($this->user, _("Sorry, this command is not yet implemented."));
	}
}

class TrackingCommand extends UnimplementedCommand {
}

class TrackOffCommand extends UnimplementedCommand {
}

class TrackCommand extends UnimplementedCommand {
	var $word = NULL;
	function __construct($user, $word) {
		parent::__construct($user);
		$this->word = $word;
	}
}

class UntrackCommand extends UnimplementedCommand {
	var $word = NULL;
	function __construct($user, $word) {
		parent::__construct($user);
		$this->word = $word;
	}
}

class NudgeCommand extends UnimplementedCommand {
	var $other = NULL;
	function __construct($user, $other) {
		parent::__construct($user);
		$this->other = $other;
	}
}

class InviteCommand extends UnimplementedCommand {
	var $other = NULL;
	function __construct($user, $other) {
		parent::__construct($user);
		$this->other = $other;
	}
}

class StatsCommand extends Command {
	function execute($channel) {

		$subs = new Subscription();
		$subs->subscriber = $this->user->id;
		$subs_count = (int) $subs->count() - 1;

		$subbed = new Subscription();
		$subbed->subscribed = $this->user->id;
		$subbed_count = (int) $subbed->count() - 1;

		$notices = new Notice();
		$notices->profile_id = $this->user->id;
		$notice_count = (int) $notices->count();
		
		$channel->output($this->user, sprintf(_("Subscriptions: %1\$s\n".
								   "Subscribers: %2\$s\n".
								   "Notices: %3\$s"),
								 $subs_count,
								 $subbed_count,
								 $notice_count));
	}
}

class FavCommand extends Command {
	
	var $other = NULL;
	
	function __construct($user, $other) {
		parent::__construct($user);
		$this->other = $other;
	}
	
	function execute($channel) {
		
		$recipient = 
		  common_relative_profile($this->user, common_canonical_nickname($this->other));
		
		if (!$recipient) {
			$channel->error($this->user, _('No such user.'));
			return;
		}
		$notice = $recipient->getCurrentNotice();
		if (!$notice) {
			$channel->error($this->user, _('User has no last notice'));
			return;
		}
		
		$fave = Fave::addNew($this->user, $notice);

		if (!$fave) {
			$channel->error($this->user, _('Could not create favorite.'));
			return;
		}

	    $other = User::staticGet('id', $recipient->id);
		
		if ($other && $other->id != $user->id) {
			if ($other->email && $other->emailnotifyfav) {
				mail_notify_fave($other, $this->user, $notice);
			}
		}
		
		$this->user->blowFavesCache();
		
		$channel->output($this->user, _('Notice marked as fave.'));
	}
}

class WhoisCommand extends Command {
	var $other = NULL;
	function __construct($user, $other) {
		parent::__construct($user);
		$this->other = $other;
	}
	
	function execute($channel) {
		$recipient = 
		  common_relative_profile($this->user, common_canonical_nickname($this->other));
		
		if (!$recipient) {
			$channel->error($this->user, _('No such user.'));
			return;
		}
		
		$whois = sprintf(_("%1\$s (%2\$s)"), $recipient->nickname,
						 $recipient->profileurl);
		if ($recipient->fullname) {
			$whois .= "\n" . sprintf(_('Fullname: %s'), $recipient->fullname);
		}
		if ($recipient->location) {
			$whois .= "\n" . sprintf(_('Location: %s'), $recipient->location);
		}
		if ($recipient->homepage) {
			$whois .= "\n" . sprintf(_('Homepage: %s'), $recipient->homepage);
		}
		if ($recipient->bio) {
			$whois .= "\n" . sprintf(_('About: %s'), $recipient->bio);
		}
		$channel->output($this->user, $whois);
	}
}

class MessageCommand extends Command {
	var $other = NULL;
	var $text = NULL;
	function __construct($user, $other, $text) {
		parent::__construct($user);
		$this->other = $other;
		$this->text = $text;
	}
	
	function execute($channel) {
		$other = User::staticGet('nickname', common_canonical_nickname($this->other));
		$len = mb_strlen($this->text);
		if ($len == 0) {
			$channel->error($this->user, _('No content!'));
			return;
		} else if ($len > 140) {
			$content = common_shorten_links($content);
			if (mb_strlen($content) > 140) {
				$channel->error($this->user, sprintf(_('Message too long - maximum is 140 characters, you sent %d'), $len));
				return;
			}
		}
		
		if (!$other) {
			$channel->error($this->user, _('No such user.'));
			return;
		} else if (!$this->user->mutuallySubscribed($other)) {
			$channel->error($this->user, _('You can\'t send a message to this user.'));
			return;
		} else if ($this->user->id == $other->id) {
			$channel->error($this->user, _('Don\'t send a message to yourself; just say it to yourself quietly instead.'));
			return;
		}
		$message = Message::saveNew($this->user->id, $other->id, $this->text, $channel->source());
		if ($message) {
			$channel->output($this->user, sprintf(_('Direct message to %s sent'), $this->other));
		} else {
			$channel->error($this->user, _('Error sending direct message.'));
		}
	}
}

class GetCommand extends Command {
	
	var $other = NULL;
	
	function __construct($user, $other) {
		parent::__construct($user);
		$this->other = $other;
	}
	
	function execute($channel) {
		$target_nickname = common_canonical_nickname($this->other);
		
		$target =
		  common_relative_profile($this->user, $target_nickname);

		if (!$target) {
			$channel->error($this->user, _('No such user.'));
			return;
		}
		$notice = $target->getCurrentNotice();
		if (!$notice) {
			$channel->error($this->user, _('User has no last notice'));
			return;
		}
		$notice_content = $notice->content;
		
		$channel->output($this->user, $target_nickname . ": " . $notice_content);
	}
}

class SubCommand extends Command {
	
	var $other = NULL;
	
	function __construct($user, $other) {
		parent::__construct($user);
		$this->other = $other;
	}
	
	function execute($channel) {
		
		if (!$this->other) {
			$channel->error($this->user, _('Specify the name of the user to subscribe to'));
			return;
		}
		
		$result = subs_subscribe_user($this->user, $this->other);
		
		if ($result == 'true') {
			$channel->output($this->user, sprintf(_('Subscribed to %s'), $this->other));
		} else {
			$channel->error($this->user, $result);
		}
	}
}

class UnsubCommand extends Command {

	var $other = NULL;
	
	function __construct($user, $other) {
		parent::__construct($user);
		$this->other = $other;
	}

	function execute($channel) {
		if(!$this->other) {
			$channel->error($this->user, _('Specify the name of the user to unsubscribe from'));
			return;
		}
		
		$result=subs_unsubscribe_user($this->user, $this->other);
		
		if ($result) {
			$channel->output($this->user, sprintf(_('Unsubscribed from %s'), $this->other));
		} else {
			$channel->error($this->user, $result);
		}
	}
}

class OffCommand extends Command {
	var $other = NULL;
	function __construct($user, $other=NULL) {
		parent::__construct($user);
		$this->other = $other;
	}
	function execute($channel) {
		if ($other) {
			$channel->error($this->user, _("Command not yet implemented."));
		} else {
			if ($channel->off($this->user)) {
				$channel->output($this->user, _('Notification off.'));
			} else {
				$channel->error($this->user, _('Can\'t turn off notification.'));
			}
		}
	}
}

class OnCommand extends Command {
	var $other = NULL;
	function __construct($user, $other=NULL) {
		parent::__construct($user);
		$this->other = $other;
	}
	
	function execute($channel) {
		if ($other) {
			$channel->error($this->user, _("Command not yet implemented."));
		} else {
			if ($channel->on($this->user)) {
				$channel->output($this->user, _('Notification on.'));
			} else {
				$channel->error($this->user, _('Can\'t turn on notification.'));
			}
		}
	}
}

class HelpCommand extends Command {
	function execute($channel) {
		$channel->output($this->user,
						 _("Commands:\n".
						   "on - turn on notifications\n".
						   "off - turn off notifications\n".
						   "help - show this help\n".
						   "follow <nickname> - subscribe to user\n".
						   "leave <nickname> - unsubscribe from user\n".
						   "d <nickname> <text> - direct message to user\n".
						   "get <nickname> - get last notice from user\n".
						   "whois <nickname> - get profile info on user\n".
						   "fav <nickname> - add user's last notice as a 'fave'\n".
						   "stats - get your stats\n".
						   "stop - same as 'off'\n".
						   "quit - same as 'off'\n".
						   "sub <nickname> - same as 'follow'\n".
						   "unsub <nickname> - same as 'leave'\n".
						   "last <nickname> - same as 'get'\n".
						   "on <nickname> - not yet implemented.\n".
						   "off <nickname> - not yet implemented.\n".						   
						   "nudge <nickname> - not yet implemented.\n".
						   "invite <phone number> - not yet implemented.\n".
						   "track <word> - not yet implemented.\n".
						   "untrack <word> - not yet implemented.\n".
						   "track off - not yet implemented.\n".
						   "untrack all - not yet implemented.\n".
						   "tracks - not yet implemented.\n".
						   "tracking - not yet implemented.\n"));
	}
}