Add actions for joining or leaving a group, and fixup JS to match

1 files changed, 153 insertions, 0 deletions

diff --git a/actions/leavegroup.php b/actions/leavegroup.php
new file mode 100644
index 000000000..587208b36
--- /dev/null
+++ b/actions/leavegroup.php
@@ -0,0 +1,153 @@
+<?php
+/**
+ * Laconica, the distributed open-source microblogging tool
+ *
+ * Leave a group
+ *
+ * PHP version 5
+ *
+ * LICENCE: 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/>.
+ *
+ * @category  Group
+ * @package   Laconica
+ * @author    Evan Prodromou <evan@controlyourself.ca>
+ * @copyright 2008-2009 Control Yourself, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link      http://laconi.ca/
+ */
+
+if (!defined('LACONICA')) {
+    exit(1);
+}
+
+/**
+ * Leave a group
+ *
+ * This is the action for leaving a group. It works more or less like the subscribe action
+ * for users.
+ *
+ * @category Group
+ * @package  Laconica
+ * @author   Evan Prodromou <evan@controlyourself.ca>
+ * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link     http://laconi.ca/
+ */
+
+class LeavegroupAction extends Action
+{
+    var $group = null;
+
+    /**
+     * Prepare to run
+     */
+
+    function prepare($args)
+    {
+        parent::prepare($args);
+
+        if (!common_config('inboxes','enabled')) {
+            $this->serverError(_('Inboxes must be enabled for groups to work'));
+            return false;
+        }
+
+        if (!common_logged_in()) {
+            $this->clientError(_('You must be logged in to join a group.'));
+            return false;
+        }
+
+        $nickname_arg = $this->trimmed('nickname');
+        $nickname = common_canonical_nickname($nickname_arg);
+
+        // Permanent redirect on non-canonical nickname
+
+        if ($nickname_arg != $nickname) {
+            $args = array('nickname' => $nickname);
+            common_redirect(common_local_url('editgroup', $args), 301);
+            return false;
+        }
+
+        if (!$nickname) {
+            $this->clientError(_('No nickname'), 404);
+            return false;
+        }
+
+        $this->group = User_group::staticGet('nickname', $nickname);
+
+        if (!$this->group) {
+            $this->clientError(_('No such group'), 404);
+            return false;
+        }
+
+        $cur = common_current_user();
+
+        if (!$cur->isMember($group)) {
+            $this->clientError(_('You are not a member of that group'), 403);
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Handle the request
+     *
+     * On POST, add the current user to the group
+     *
+     * @param array $args unused
+     *
+     * @return void
+     */
+
+    function handle($args)
+    {
+        parent::handle($args);
+
+        $cur = common_current_user();
+
+        $member = new Group_member();
+
+        $member->group_id   = $this->group->id;
+        $member->profile_id = $cur->id;
+
+        if (!$member->find(true)) {
+            $this->serverError(_('Could not find membership record.'));
+            return;
+        }
+
+        $result = $member->delete();
+
+        if (!$result) {
+            common_log_db_error($member, 'INSERT', __FILE__);
+            $this->serverError(sprintf(_('Could not remove user %s to group %s'),
+                                       $cur->nickname, $this->group->nickname));
+        }
+
+        if ($this->boolean('ajax')) {
+            $this->startHTML('text/xml;charset=utf-8');
+            $this->elementStart('head');
+            $this->element('title', null, sprintf(_('%s left group %s'),
+                                                  $cur->nickname,
+                                                  $this->group->nickname));
+            $this->elementEnd('head');
+            $this->elementStart('body');
+            $jf = new JoinForm($this, $this->group);
+            $jf->show();
+            $this->elementEnd('body');
+            $this->elementEnd('html');
+        } else {
+            common_redirect(common_local_url('groupmembers', array('nickname' =>
+                                                                   $this->group->nickname)));
+        }
+    }
+}
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