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+<?php
+/**
+ * Block a user from a group action class.
+ *
+ * PHP version 5
+ *
+ * @category Action
+ * @package Laconica
+ * @author Evan Prodromou <evan@controlyourself.ca>
+ * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
+ * @link http://laconi.ca/
+ *
+ * Laconica - a distributed open-source microblogging tool
+ * Copyright (C) 2008, 2009, Control Yourself, 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);
+}
+
+/**
+ * Block a user from a group
+ *
+ * @category Action
+ * @package Laconica
+ * @author Evan Prodromou <evan@controlyourself.ca>
+ * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
+ * @link http://laconi.ca/
+ */
+
+class GroupblockAction extends Action
+{
+ var $profile = null;
+ var $group = null;
+
+ /**
+ * Take arguments for running
+ *
+ * @param array $args $_REQUEST args
+ *
+ * @return boolean success flag
+ */
+
+ function prepare($args)
+ {
+ parent::prepare($args);
+ if (!common_logged_in()) {
+ $this->clientError(_('Not logged in.'));
+ return false;
+ }
+ $token = $this->trimmed('token');
+ if (empty($token) || $token != common_session_token()) {
+ $this->clientError(_('There was a problem with your session token. Try again, please.'));
+ return;
+ }
+ $id = $this->trimmed('blockto');
+ if (empty($id)) {
+ $this->clientError(_('No profile specified.'));
+ return false;
+ }
+ $this->profile = Profile::staticGet('id', $id);
+ if (empty($this->profile)) {
+ $this->clientError(_('No profile with that ID.'));
+ return false;
+ }
+ $group_id = $this->trimmed('blockgroup');
+ if (empty($group_id)) {
+ $this->clientError(_('No group specified.'));
+ return false;
+ }
+ $this->group = User_group::staticGet('id', $group_id);
+ if (empty($this->group)) {
+ $this->clientError(_('No such group.'));
+ return false;
+ }
+ $user = common_current_user();
+ if (!$user->isAdmin($this->group)) {
+ $this->clientError(_('Only an admin can block group members.'), 401);
+ return false;
+ }
+ if (Group_block::isBlocked($this->group, $this->profile)) {
+ $this->clientError(_('User is already blocked from group.'));
+ return false;
+ }
+ // XXX: could have proactive blocks, but we don't have UI for it.
+ if (!$this->profile->isMember($this->group)) {
+ $this->clientError(_('User is not a member of group.'));
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Handle request
+ *
+ * Shows a page with list of favorite notices
+ *
+ * @param array $args $_REQUEST args; handled in prepare()
+ *
+ * @return void
+ */
+ function handle($args)
+ {
+ parent::handle($args);
+ if ($_SERVER['REQUEST_METHOD'] == 'POST') {
+ if ($this->arg('no')) {
+ common_redirect(common_local_url('groupmembers',
+ array('nickname' => $this->group->nickname)),
+ 303);
+ } elseif ($this->arg('yes')) {
+ $this->blockProfile();
+ } elseif ($this->arg('blockto')) {
+ $this->showPage();
+ }
+ }
+ }
+
+ function showContent() {
+ $this->areYouSureForm();
+ }
+
+ function title() {
+ return _('Block user from group');
+ }
+
+ function showNoticeForm() {
+ // nop
+ }
+
+ /**
+ * Confirm with user.
+ *
+ * Shows a confirmation form.
+ *
+ * @return void
+ */
+
+ function areYouSureForm()
+ {
+ $id = $this->profile->id;
+ $this->element('p', null,
+ sprintf(_('Are you sure you want to block user "%s" from the group "%s"? '.
+ 'They will be removed from the group, unable to post, and '.
+ 'unable to subscribe to the group in the future.'),
+ $this->profile->getBestName(),
+ $this->group->getBestName()));
+ $this->elementStart('form', array('id' => 'block-' . $id,
+ 'method' => 'post',
+ 'class' => 'block',
+ 'action' => common_local_url('groupblock')));
+ $this->hidden('token', common_session_token());
+ $this->hidden('blockto-' . $this->profile->id,
+ $this->profile->id,
+ 'blockto');
+ $this->hidden('blockgroup-' . $this->group->id,
+ $this->group->id,
+ 'blockgroup');
+ foreach ($this->args as $k => $v) {
+ if (substr($k, 0, 9) == 'returnto-') {
+ $this->hidden($k, $v);
+ }
+ }
+ $this->submit('no', _('No'));
+ $this->submit('yes', _('Yes'));
+ $this->elementEnd('form');
+ }
+
+ /**
+ * Actually block a user.
+ *
+ * @return void
+ */
+
+ function blockProfile()
+ {
+ $block = Group_block::blockProfile($this->group, $this->profile,
+ common_current_user());
+
+ if (empty($block)) {
+ $this->serverError(_("Database error blocking user from group."));
+ return false;
+ }
+
+ // Now, gotta figure where we go back to
+ foreach ($this->args as $k => $v) {
+ if ($k == 'returnto-action') {
+ $action = $v;
+ } elseif (substr($k, 0, 9) == 'returnto-') {
+ $args[substr($k, 9)] = $v;
+ }
+ }
+
+ if ($action) {
+ common_redirect(common_local_url($action, $args), 303);
+ } else {
+ common_redirect(common_local_url('groupmembers',
+ array('nickname' => $this->group->nickname)),
+ 303);
+ }
+ }
+}
+