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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/twitterapi.php');
class TwitapifriendshipsAction extends TwitterapiAction {
function is_readonly() {
static $write_methods = array( 'create',
'destroy');
$cmdtext = explode('.', $this->arg('method'));
if (in_array($cmdtext[0], $write_methods)) {
return false;
}
return true;
}
function create($args, $apidata) {
parent::handle($args);
if ($_SERVER['REQUEST_METHOD'] != 'POST') {
$this->client_error(_('This method requires a POST.'), 400, $apidata['content-type']);
exit();
}
$id = $apidata['api_arg'];
$other = $this->get_user($id);
if (!$other) {
$this->client_error(_('Could not follow user: User not found.'), 403, $apidata['content-type']);
exit();
}
$user = $apidata['user'];
if ($user->isSubscribed($other)) {
$errmsg = sprintf(_('Could not follow user: %s is already on your list.'), $other->nickname);
$this->client_error($errmsg, 403, $apidata['content-type']);
exit();
}
$sub = new Subscription();
$sub->query('BEGIN');
$sub->subscriber = $user->id;
$sub->subscribed = $other->id;
$sub->created = DB_DataObject_Cast::dateTime(); # current time
$result = $sub->insert();
if (!$result) {
$errmsg = sprintf(_('Could not follow user: %s is already on your list.'), $other->nickname);
$this->client_error($errmsg, 400, $apidata['content-type']);
exit();
}
$sub->query('COMMIT');
mail_subscribe_notify($other, $user);
$type = $apidata['content-type'];
$this->init_document($type);
$this->show_profile($other, $type);
$this->end_document($type);
exit();
}
//destroy
//
//Discontinues friendship with the user specified in the ID parameter as the authenticating user. Returns the un-friended user in the requested format when successful. Returns a string describing the failure condition when unsuccessful.
//
//URL: http://twitter.com/friendships/destroy/id.format
//
//Formats: xml, json
//
//Parameters:
//
//* id. Required. The ID or screen name of the user with whom to discontinue friendship. Ex: http://twitter.com/friendships/destroy/12345.json or http://twitter.com/friendships/destroy/bob.xml
function destroy($args, $apidata) {
parent::handle($args);
if (!in_array($_SERVER['REQUEST_METHOD'], array('POST', 'DELETE'))) {
$this->client_error(_('This method requires a POST or DELETE.'), 400, $apidata['content-type']);
exit();
}
$id = $apidata['api_arg'];
# We can't subscribe to a remote person, but we can unsub
$other = $this->get_profile($id);
$user = $apidata['user'];
$sub = new Subscription();
$sub->subscriber = $user->id;
$sub->subscribed = $other->id;
if ($sub->find(TRUE)) {
$sub->query('BEGIN');
$sub->delete();
$sub->query('COMMIT');
} else {
$this->client_error(_('You are not friends with the specified user.'), 403, $apidata['content-type']);
exit();
}
$type = $apidata['content-type'];
$this->init_document($type);
$this->show_profile($other, $type);
$this->end_document($type);
exit();
}
// Tests if a friendship exists between two users.
//
//
// URL: http://twitter.com/friendships/exists.format
//
// Formats: xml, json, none
//
// Parameters:
//
// * user_a. Required. The ID or screen_name of the first user to test friendship for.
// * user_b. Required. The ID or screen_name of the second user to test friendship for.
// * Ex: http://twitter.com/friendships/exists.xml?user_a=alice&user_b=bob
function exists($args, $apidata) {
parent::handle($args);
$user_a_id = $this->trimmed('user_a');
$user_b_id = $this->trimmed('user_b');
$user_a = $this->get_user($user_a_id);
$user_b = $this->get_user($user_b_id);
if (!$user_a || !$user_b) {
$this->client_error(_('Two user ids or screen_names must be supplied.'), 400, $apidata['content-type']);
exit();
}
if ($user_a->isSubscribed($user_b)) {
$result = 'true';
} else {
$result = 'false';
}
switch ($apidata['content-type']) {
case 'xml':
$this->init_document('xml');
common_element('friends', NULL, $result);
$this->end_document('xml');
break;
case 'json':
$this->init_document('json');
print json_encode($result);
$this->end_document('json');
break;
default:
print $result; // Really? --Zach
break;
}
exit();
}
function get_profile($id) {
if (is_numeric($id)) {
return Profile::staticGet($id);
} else {
$user = User::staticGet('nickname', $id);
if ($user) {
return $user->getProfile();
} else {
return NULL;
}
}
}
function get_user($id) {
if (is_numeric($id)) {
return User::staticGet($id);
} else {
return User::staticGet('nickname', $id);
}
}
}
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