Add a basic group deletion for moderator users.

2 files changed, 232 insertions, 0 deletions

diff --git a/actions/deletegroup.php b/actions/deletegroup.php
new file mode 100644
index 000000000..acb309e1d
--- /dev/null
+++ b/actions/deletegroup.php
@@ -0,0 +1,226 @@
+<?php
+/**
+ * StatusNet, the distributed open-source microblogging tool
+ *
+ * Delete 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   StatusNet
+ * @author    Evan Prodromou <evan@status.net>
+ * @author    Brion Vibber <brion@status.net>
+ * @copyright 2008-2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link      http://status.net/
+ */
+
+if (!defined('STATUSNET') && !defined('LACONICA')) {
+    exit(1);
+}
+
+/**
+ * Delete a group
+ *
+ * This is the action for deleting a group.
+ *
+ * @category Group
+ * @package  StatusNet
+ * @author   Evan Prodromou <evan@status.net>
+ * @author   Brion Vibber <brion@status.net>
+ * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link     http://status.net/
+ * @fixme merge more of this code with related variants
+ */
+
+class DeletegroupAction extends RedirectingAction
+{
+    var $group = null;
+
+    /**
+     * Prepare to run
+     *
+     * @fixme merge common setup code with other group actions
+     * @fixme allow group admins to delete their own groups
+     */
+
+    function prepare($args)
+    {
+        parent::prepare($args);
+
+        if (!common_logged_in()) {
+            $this->clientError(_('You must be logged in to delete a group.'));
+            return false;
+        }
+
+        $nickname_arg = $this->trimmed('nickname');
+        $id = intval($this->arg('id'));
+        if ($id) {
+            $this->group = User_group::staticGet('id', $id);
+        } else if ($nickname_arg) {
+            $nickname = common_canonical_nickname($nickname_arg);
+
+            // Permanent redirect on non-canonical nickname
+
+            if ($nickname_arg != $nickname) {
+                $args = array('nickname' => $nickname);
+                common_redirect(common_local_url('leavegroup', $args), 301);
+                return false;
+            }
+
+            $local = Local_group::staticGet('nickname', $nickname);
+
+            if (!$local) {
+                $this->clientError(_('No such group.'), 404);
+                return false;
+            }
+
+            $this->group = User_group::staticGet('id', $local->group_id);
+        } else {
+            $this->clientError(_('No nickname or ID.'), 404);
+            return false;
+        }
+
+        if (!$this->group) {
+            $this->clientError(_('No such group.'), 404);
+            return false;
+        }
+
+        $cur = common_current_user();
+        if (!$cur->hasRight(Right::DELETEGROUP)) {
+            $this->clientError(_('You are not allowed to delete this group.'), 403);
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Handle the request
+     *
+     * On POST, delete the group.
+     *
+     * @param array $args unused
+     *
+     * @return void
+     */
+
+    function handle($args)
+    {
+        parent::handle($args);
+        if ($_SERVER['REQUEST_METHOD'] == 'POST') {
+            if ($this->arg('no')) {
+                $this->returnToPrevious();
+                return;
+            } elseif ($this->arg('yes')) {
+                $this->handlePost();
+                return;
+            }
+        }
+        $this->showPage();
+    }
+
+    function handlePost()
+    {
+        $cur = common_current_user();
+
+        try {
+            if (Event::handle('StartDeleteGroup', array($this->group))) {
+                $this->group->delete();
+                Event::handle('EndDeleteGroup', array($this->group));
+            }
+        } catch (Exception $e) {
+            $this->serverError(sprintf(_('Could not delete group %2$s.'),
+                                       $this->group->nickname));
+        }
+
+        if ($this->boolean('ajax')) {
+            $this->startHTML('text/xml;charset=utf-8');
+            $this->elementStart('head');
+            $this->element('title', null, sprintf(_('Deleted group %2$s'),
+                                                  $this->group->nickname));
+            $this->elementEnd('head');
+            $this->elementStart('body');
+            // @fixme add a sensible AJAX response form!
+            $this->elementEnd('body');
+            $this->elementEnd('html');
+        } else {
+            // @fixme if we could direct to the page on which this group
+            // would have shown... that would be awesome
+            common_redirect(common_local_url('groups'),
+                            303);
+        }
+    }
+
+    function title() {
+        return _('Delete group');
+    }
+
+    function showContent() {
+        $this->areYouSureForm();
+    }
+
+    /**
+     * Confirm with user.
+     * Ripped from DeleteuserAction
+     *
+     * Shows a confirmation form.
+     *
+     * @fixme refactor common code for things like this
+     * @return void
+     */
+    function areYouSureForm()
+    {
+        $id = $this->group->id;
+        $this->elementStart('form', array('id' => 'deletegroup-' . $id,
+                                           'method' => 'post',
+                                           'class' => 'form_settings form_entity_block',
+                                           'action' => common_local_url('deletegroup', array('id' => $this->group->id))));
+        $this->elementStart('fieldset');
+        $this->hidden('token', common_session_token());
+        $this->element('legend', _('Delete group'));
+        if (Event::handle('StartDeleteGroupForm', array($this, $this->group))) {
+            $this->element('p', null,
+                           _('Are you sure you want to delete this group? '.
+                             'This will clear all data about the group from the '.
+                             'database, without a backup. ' .
+                             'Public posts to this group will still appear in ' .
+                             'individual timelines.'));
+            foreach ($this->args as $k => $v) {
+                if (substr($k, 0, 9) == 'returnto-') {
+                    $this->hidden($k, $v);
+                }
+            }
+            Event::handle('EndDeleteGroupForm', array($this, $this->group));
+        }
+        $this->submit('form_action-no',
+                      // TRANS: Button label on the delete group form.
+                      _m('BUTTON','No'),
+                      'submit form_action-primary',
+                      'no',
+                      // TRANS: Submit button title for 'No' when deleting a group.
+                      _('Do not delete this group'));
+        $this->submit('form_action-yes',
+                      // TRANS: Button label on the delete group form.
+                      _m('BUTTON','Yes'),
+                      'submit form_action-secondary',
+                      'yes',
+                      // TRANS: Submit button title for 'Yes' when deleting a group.
+                      _('Delete this group'));
+        $this->elementEnd('fieldset');
+        $this->elementEnd('form');
+    }
+}
\ No newline at end of file
diff --git a/actions/showgroup.php b/actions/showgroup.php
index 17c37e4d7..9a12bafaf 100644
--- a/actions/showgroup.php
+++ b/actions/showgroup.php
@@ -316,6 +316,12 @@ class ShowgroupAction extends GroupDesignAction
             Event::handle('EndGroupSubscribe', array($this, $this->group));
         }
         $this->elementEnd('li');
+        if ($cur->hasRight(Right::DELETEGROUP)) {
+            $this->elementStart('li', 'entity_delete');
+            $df = new DeleteGroupForm($this, $this->group);
+            $df->show();
+            $this->elementEnd('li');
+        }
         $this->elementEnd('ul');
         $this->elementEnd('div');
     }